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Huang R, Pang Q, Zheng L, Lin J, Li H, Wan L, Wang T. Cholesterol metabolism: physiological versus pathological aspects in intracerebral hemorrhage. Neural Regen Res 2025; 20:1015-1030. [PMID: 38989934 DOI: 10.4103/nrr.nrr-d-23-01462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 01/27/2024] [Indexed: 07/12/2024] Open
Abstract
Cholesterol is an important component of plasma membranes and participates in many basic life functions, such as the maintenance of cell membrane stability, the synthesis of steroid hormones, and myelination. Cholesterol plays a key role in the establishment and maintenance of the central nervous system. The brain contains 20% of the whole body's cholesterol, 80% of which is located within myelin. A huge number of processes (e.g., the sterol regulatory element-binding protein pathway and liver X receptor pathway) participate in the regulation of cholesterol metabolism in the brain via mechanisms that include cholesterol biosynthesis, intracellular transport, and efflux. Certain brain injuries or diseases involving crosstalk among the processes above can affect normal cholesterol metabolism to induce detrimental consequences. Therefore, we hypothesized that cholesterol-related molecules and pathways can serve as therapeutic targets for central nervous system diseases. Intracerebral hemorrhage is the most severe hemorrhagic stroke subtype, with high mortality and morbidity. Historical cholesterol levels are associated with the risk of intracerebral hemorrhage. Moreover, secondary pathological changes after intracerebral hemorrhage are associated with cholesterol metabolism dysregulation, such as neuroinflammation, demyelination, and multiple types of programmed cell death. Intracellular cholesterol accumulation in the brain has been found after intracerebral hemorrhage. In this paper, we review normal cholesterol metabolism in the central nervous system, the mechanisms known to participate in the disturbance of cholesterol metabolism after intracerebral hemorrhage, and the links between cholesterol metabolism and cell death. We also review several possible and constructive therapeutic targets identified based on cholesterol metabolism to provide cholesterol-based perspectives and a reference for those interested in the treatment of intracerebral hemorrhage.
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Affiliation(s)
- Ruoyu Huang
- Department of Forensic Science, School of Basic Medicine and Biological Sciences, Suzhou Medicine College of Soochow University, Suzhou, Jiangsu Province, China
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Llansó L, Segarra-Casas A, Domínguez-González C, Malfatti E, Kapetanovic S, Rodríguez-Santiago B, de la Calle O, Blanco R, Dobrescu A, Nascimento-Osorio A, Paipa A, Hernandez-Lain A, Jou C, Mariscal A, González-Mera L, Arteche A, Lleixà C, Caballero-Ávila M, Carbayo Á, Vesperinas A, Querol L, Gallardo E, Olivé M. Absence of Pathogenic Mutations and Strong Association With HLA-DRB1*11:01 in Statin-Naïve Early-Onset Anti-HMGCR Necrotizing Myopathy. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2024; 11:e200285. [PMID: 39106428 PMCID: PMC11309561 DOI: 10.1212/nxi.0000000000200285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 05/30/2024] [Indexed: 08/09/2024]
Abstract
BACKGROUND AND OBJECTIVES Immune-mediated necrotizing myopathy (IMNM) caused by antibodies against 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR) is an inflammatory myopathy that has been epidemiologically correlated with previous statin exposure. We characterized in detail a series of 11 young statin-naïve patients experiencing a chronic disease course mimicking a limb-girdle muscular dystrophy. With the hypothesis that HMGCR upregulation may increase immunogenicity and trigger the production of autoantibodies, our aim was to expand pathophysiologic knowledge of this distinct phenotype. METHODS Clinical and epidemiologic data, autoantibody titers, creatine kinase (CK) levels, response to treatment, muscle imaging, and muscle biopsies were assessed. HMGCR expression in patients' muscle was assessed by incubating sections of affected patients with purified anti-HMGCR+ serum. Whole-exome sequencing (WES) with a special focus on cholesterol biosynthesis-related genes and high-resolution human leukocyte antigen (HLA) typing were performed. RESULTS Patients, aged 3-25 years and mostly female (90.9%), presented with subacute proximal weakness progressing over many years and high CK levels (>1,000 U/L). Diagnostic delay ranged from 3 to 27 years. WES did not reveal any pathogenic variants. HLA-DRB1*11:01 carrier frequency was 60%, a significantly higher proportion than in the control population. No upregulation or mislocalization of the enzyme in statin-exposed or statin-naïve anti-HMGCR+ patients was observed, compared with controls. DISCUSSION WES of a cohort of patients with dystrophy-like anti-HMGCR IMNM did not reveal any common rare variants of any gene, including cholesterol biosynthesis-related genes. HLA analysis showed a strong association with HLA-DRB1*11:01, previously mostly described in statin-exposed adult patients; consequently, a common immunogenic predisposition should be suspected, irrespective of statin exposure. Moreover, we were unable to conclusively demonstrate muscle upregulation/mislocalization of HMGCR in IMNM, whether or not driven by statins.
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Affiliation(s)
- Laura Llansó
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Alba Segarra-Casas
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Cristina Domínguez-González
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Edoardo Malfatti
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Solange Kapetanovic
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Benjamín Rodríguez-Santiago
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Oscar de la Calle
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Rosa Blanco
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Amelia Dobrescu
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Andrés Nascimento-Osorio
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Andrés Paipa
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Aurelio Hernandez-Lain
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Cristina Jou
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Anaís Mariscal
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Laura González-Mera
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Ana Arteche
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Cinta Lleixà
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Marta Caballero-Ávila
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Álvaro Carbayo
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Ana Vesperinas
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Luis Querol
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Eduard Gallardo
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
| | - Montse Olivé
- From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.), INSERM, U955 IMRB; AP-HP, Hôpital Mondor, FHU SENEC, Service d'Histologie, Créteil, France; Department of Neurology (S.K.), Neuromuscular Diseases Unit, Osakidetza Basque Health Service, Basurto University Hospital, Universidad del País Vasco, Bilbao; Institut de Recerca Sant Pau (IR Sant Pau) (B.R.-S., R.B., C.L., L.Q., E.G., M.O.), Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Madrid; Genomic Instability Syndromes and DNA Repair Group and Join Research Unit on Genomic Medicine UAB (B.R.-S.), Institut de Recerca Sant Pau (IR Sant Pau), Hospital de la Santa Creu i Sant Pau; Immunology Department (O.C., A.M.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Institut de Recerca Sant Pau (IR Sant Pau), Barcelona, Spain; Department of Genetics (A.D.), Craiova University Hospital, Romania; Neuropaediatrics Department (A.N.O.), Neuromuscular Diseases Unit, Hospital Sant Joan de Déu, Fundación Sant Joan de Déu, CIBERER - ISC III; Neurology Department (A.P., L.G.-M.), Neuromuscular Unit, IDIBELL-Hospital de Bellvitge, Hospitalet de Llobregat, Barcelona; Pathology Department (A.H.-L.), Neuropathology Unit, Hospital Universitario 12 de Octubre, Madrid; Pathology Department (C.J.), Institut Pediàtric de Recerca, Hospital Sant Joan de Déu, and MetabERN, Barcelona; Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid; Department of Neurology (L.G.-M.), Hospital de Viladecans, Barcelona; and Department of Genetics (A.A.), Hospital Universitario 12 de Octubre, Research Institute imas12, Madrid, Spain
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3
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Zhang Y, Wang Z, Lu Y, Sanchez DJ, Li J, Wang L, Meng X, Chen J, Kien TT, Zhong M, Gao W, Ding X. Region-Specific CD16 + Neutrophils Promote Colorectal Cancer Progression by Inhibiting Natural Killer Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2403414. [PMID: 38790136 PMCID: PMC11304263 DOI: 10.1002/advs.202403414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/30/2024] [Indexed: 05/26/2024]
Abstract
The colon is the largest compartment of the immune system, with innate immune cells exposed to antigens in the environment. However, the mechanisms by which the innate immune system is instigated are poorly defined in colorectal cancer (CRC). Here, a population of CD16+ neutrophils that specifically accumulate in CRC tumor tissues by imaging mass cytometry (IMC), immune fluorescence, and flow cytometry, which demonstrated pro-tumor activity by disturbing natural killer (NK) cells are identified. It is found that these CD16+ neutrophils possess abnormal cholesterol accumulation due to activation of the CD16/TAK1/NF-κB axis, which upregulates scavenger receptors for cholesterol intake including CD36 and LRP1. Consequently, these region-specific CD16+ neutrophils not only competitively inhibit cholesterol intake of NK cells, which interrupts NK lipid raft formation and blocks their antitumor signaling but also release neutrophil extracellular traps (NETs) to induce the death of NK cells. Furthermore, CD16-knockout reverses the pro-tumor activity of neutrophils and restored NK cell cytotoxicity. Collectively, the findings suggest that CRC region-specific CD16+ neutrophils can be a diagnostic marker and potential therapeutic target for CRC.
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Affiliation(s)
- Yan Zhang
- State Key Laboratory of Systems Medicine for CancerRenji HospitalSchool of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
- Med‐X Research Institute & School of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
| | - Zien Wang
- State Key Laboratory of Systems Medicine for CancerRenji HospitalSchool of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
- Med‐X Research Institute & School of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
| | - Yu Lu
- State Key Laboratory of Systems Medicine for CancerRenji HospitalSchool of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
| | - David J. Sanchez
- Pharmaceutical Sciences DepartmentCollege of PharmacyWestern University of Health Sciences309 East 2nd StreetHPC 225PomonaCA90025USA
| | - Jiaojiao Li
- School of Biomedical EngineeringFaculty of Engineering and ITUniversity of Technology SydneySydneyNSW2007Australia
| | - Linghao Wang
- Med‐X Research Institute & School of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
| | - Xiaoxue Meng
- Med‐X Research Institute & School of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
| | - Jianjun Chen
- Department of Gastrointestinal SurgeryRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Tran Trung Kien
- Oncology departmentUniversity Medical Shing Mark Hospital1054 Highway 51, Long Binh Tan Ward, Bien Hoa CityDong Nai76000Vietnam
| | - Ming Zhong
- Department of Gastrointestinal SurgeryRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Wei‐Qiang Gao
- State Key Laboratory of Systems Medicine for CancerRenji HospitalSchool of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
- Med‐X Research Institute & School of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
| | - Xianting Ding
- State Key Laboratory of Oncogenes and Related GenesInstitute for Personalized MedicineSchool of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai200030China
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4
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Ernst R, Renne MF, Jain A, von der Malsburg A. Endoplasmic Reticulum Membrane Homeostasis and the Unfolded Protein Response. Cold Spring Harb Perspect Biol 2024; 16:a041400. [PMID: 38253414 PMCID: PMC11293554 DOI: 10.1101/cshperspect.a041400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
The endoplasmic reticulum (ER) is the key organelle for membrane biogenesis. Most lipids are synthesized in the ER, and most membrane proteins are first inserted into the ER membrane before they are transported to their target organelle. The composition and properties of the ER membrane must be carefully controlled to provide a suitable environment for the insertion and folding of membrane proteins. The unfolded protein response (UPR) is a powerful signaling pathway that balances protein and lipid production in the ER. Here, we summarize our current knowledge of how aberrant compositions of the ER membrane, referred to as lipid bilayer stress, trigger the UPR.
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Affiliation(s)
- Robert Ernst
- Medical Biochemistry and Molecular Biology, Medical Faculty, Saarland University, 66421 Homburg, Germany
- Preclinical Center for Molecular Signaling (PZMS), Medical Faculty, Saarland University, 66421 Homburg, Germany
| | - Mike F Renne
- Medical Biochemistry and Molecular Biology, Medical Faculty, Saarland University, 66421 Homburg, Germany
- Preclinical Center for Molecular Signaling (PZMS), Medical Faculty, Saarland University, 66421 Homburg, Germany
| | - Aamna Jain
- Medical Biochemistry and Molecular Biology, Medical Faculty, Saarland University, 66421 Homburg, Germany
- Preclinical Center for Molecular Signaling (PZMS), Medical Faculty, Saarland University, 66421 Homburg, Germany
| | - Alexander von der Malsburg
- Medical Biochemistry and Molecular Biology, Medical Faculty, Saarland University, 66421 Homburg, Germany
- Preclinical Center for Molecular Signaling (PZMS), Medical Faculty, Saarland University, 66421 Homburg, Germany
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5
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Li N, Wang G, Guo M, Zhu N, Yu W. The mechanism and clinical application of farnesyl diphosphate farnesyltransferase 1 in cancer metabolism. Biochem Biophys Res Commun 2024; 719:150046. [PMID: 38749088 DOI: 10.1016/j.bbrc.2024.150046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/22/2024] [Accepted: 05/01/2024] [Indexed: 06/05/2024]
Abstract
Cancer poses a significant risk to human well-being. Among the crucial characteristics of cancer is metabolic reprogramming. To meet the relentless metabolic needs, cancer cells enhance cholesterol metabolism within the adverse tumor microenvironment. Reprograming cholesterol metabolism includes a series of modifications in the synthesis, absorption, esterification, and metabolites associated with cholesterol. These adjustments have a strong correlation with the proliferation, invasion, metastasis, and other characteristics of malignant tumors. FDFT1, also known as farnesyl diphosphate farnesyltransferase 1, is an enzyme crucial in the process of cholesterol biosynthesis. Its significant involvement in tumor metabolism has garnered considerable interest. The significance of FDFT1 in cancer metabolism cannot be overstated, as it actively interacts with cancer cells. This paper aims to analyze and consolidate the mechanism of FDFT1 in cancer metabolism and explore its clinical application. The goal is to contribute new strategies and targets for the prevention and treatment of cancer metabolism.
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Affiliation(s)
- Nanxin Li
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi Province Key Laboratory of TCM Etiopathogenesis, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China.
| | - Guojuan Wang
- Department of Oncology, Affiliated Hospital of Jiangxi University of Chinese Medicine, No.445, Bayi Avenue, Nanchang, 330006, China.
| | - Min Guo
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi Province Key Laboratory of TCM Etiopathogenesis, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China.
| | - Naicheng Zhu
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi Province Key Laboratory of TCM Etiopathogenesis, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China.
| | - Wenyan Yu
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi Province Key Laboratory of TCM Etiopathogenesis, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China.
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6
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He K, Zhao Z, Zhang J, Li D, Wang S, Liu Q. Cholesterol Metabolism in Neurodegenerative Diseases. Antioxid Redox Signal 2024. [PMID: 38842175 DOI: 10.1089/ars.2024.0674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Significance: Cholesterol plays a crucial role in the brain, where it is highly concentrated and tightly regulated to support normal brain functions. It serves as a vital component of cell membranes, ensuring their integrity, and acts as a key regulator of various brain processes. Dysregulation of cholesterol metabolism in the brain has been linked to impaired brain function and the onset of neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease, and Huntington's disease. Recent Advances: A significant advancement has been the identification of astrocyte-derived apoliprotein E as a key regulator of de novo cholesterol biosynthesis in neurons, providing insights into how extracellular signals influence neuronal cholesterol levels. In addition, the development of antibody-based therapies, particularly for AD, presents promising opportunities for therapeutic interventions. Critical Issues: Despite significant research, the association between cholesterol and neurodegenerative diseases remains inconclusive. It is crucial to distinguish between plasma cholesterol and brain cholesterol, as these pools are relatively independent. This differentiation should be considered when evaluating statin-based treatment approaches. Furthermore, assessing not only the total cholesterol content in the brain but also its distribution among different types of brain cells is essential. Future Direction: Establishing a causal link between changes in brain/plasma cholesterol levels and the onset of brain dysfunction/neurodegenerative diseases remains a key objective. In addition, conducting cell-specific analyses of cholesterol homeostasis in various types of brain cells under pathological conditions will enhance our understanding of cholesterol metabolism in neurodegenerative diseases. Manipulating cholesterol levels to restore homeostasis may represent a novel approach for alleviating neurological symptoms.
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Affiliation(s)
- Keqiang He
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Zhiwei Zhao
- Department of Cardiovascular Surgery, the First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China
| | - Juan Zhang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
- CAS Key Laboratory of Brain Function and Diseases, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Dingfeng Li
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
- CAS Key Laboratory of Brain Function and Diseases, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Sheng Wang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Qiang Liu
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
- CAS Key Laboratory of Brain Function and Diseases, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
- Neurodegenerative Disorder Research Center, Anhui Province Key Laboratory of Biomedical Aging Research, University of Science and Technology of China, Hefei, China
- Key Laboratory of Immune Response and Immunotherapy, University of Science and Technology of China, Hefei, China
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7
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Hendrix S, Dartigue V, Hall H, Bawaria S, Kingma J, Bajaj B, Zelcer N, Kober DL. SPRING licenses S1P-mediated cleavage of SREBP2 by displacing an inhibitory pro-domain. Nat Commun 2024; 15:5732. [PMID: 38977690 PMCID: PMC11231238 DOI: 10.1038/s41467-024-50068-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 06/28/2024] [Indexed: 07/10/2024] Open
Abstract
Site-one protease (S1P) conducts the first of two cleavage events in the Golgi to activate Sterol regulatory element binding proteins (SREBPs) and upregulate lipogenic transcription. S1P is also required for a wide array of additional signaling pathways. A zymogen serine protease, S1P matures through autoproteolysis of two pro-domains, with one cleavage event in the endoplasmic reticulum (ER) and the other in the Golgi. We recently identified the SREBP regulating gene, (SPRING), which enhances S1P maturation and is necessary for SREBP signaling. Here, we report the cryo-EM structures of S1P and S1P-SPRING at sub-2.5 Å resolution. SPRING activates S1P by dislodging its inhibitory pro-domain and stabilizing intra-domain contacts. Functionally, SPRING licenses S1P to cleave its cognate substrate, SREBP2. Our findings reveal an activation mechanism for S1P and provide insights into how spatial control of S1P activity underpins cholesterol homeostasis.
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Affiliation(s)
- Sebastian Hendrix
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, the Netherlands
| | - Vincent Dartigue
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Hailee Hall
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Shrankhla Bawaria
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jenina Kingma
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, the Netherlands
| | - Bilkish Bajaj
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Noam Zelcer
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, the Netherlands.
| | - Daniel L Kober
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
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8
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Agostini F, Pereyra L, Dale J, Yambire KF, Maglioni S, Schiavi A, Ventura N, Milosevic I, Raimundo N. Upregulation of cholesterol synthesis by lysosomal defects requires a functional mitochondrial respiratory chain. J Biol Chem 2024; 300:107403. [PMID: 38782205 PMCID: PMC11254723 DOI: 10.1016/j.jbc.2024.107403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/27/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
Mitochondria and lysosomes are two organelles that carry out both signaling and metabolic roles in cells. Recent evidence has shown that mitochondria and lysosomes are dependent on one another, as primary defects in one cause secondary defects in the other. Although there are functional impairments in both cases, the signaling consequences of primary mitochondrial dysfunction and lysosomal defects are dissimilar. Here, we used RNA sequencing to obtain transcriptomes from cells with primary mitochondrial or lysosomal defects to identify the global cellular consequences associated with mitochondrial or lysosomal dysfunction. We used these data to determine the pathways affected by defects in both organelles, which revealed a prominent role for the cholesterol synthesis pathway. We observed a transcriptional upregulation of this pathway in cellular and murine models of lysosomal defects, while it is transcriptionally downregulated in cellular and murine models of mitochondrial defects. We identified a role for the posttranscriptional regulation of transcription factor SREBF1, a master regulator of cholesterol and lipid biosynthesis, in models of mitochondrial respiratory chain deficiency. Furthermore, we found that retention of Ca2+ in lysosomes of cells with mitochondrial respiratory chain defects contributes to the differential regulation of the cholesterol synthesis pathway in the mitochondrial and lysosomal defects tested. Finally, we verified in vivo, using a model of mitochondria-associated disease in Caenorhabditis elegans that normalization of lysosomal Ca2+ levels results in partial rescue of the developmental delay induced by the respiratory chain deficiency.
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Affiliation(s)
- Francesco Agostini
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Leonardo Pereyra
- Department of Cellular Biochemistry, University Medical Center, Goettingen, Germany
| | - Justin Dale
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - King Faisal Yambire
- Laboratory of Systems Cancer Biology, The Rockefeller University, New York, New York, USA
| | - Silvia Maglioni
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany; Institute for Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University, Duesseldorf, Germany
| | - Alfonso Schiavi
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Natascia Ventura
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany; Institute for Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University, Duesseldorf, Germany
| | - Ira Milosevic
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Multidisciplinary Institute for Ageing, University of Coimbra, Coimbra, Portugal
| | - Nuno Raimundo
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA; Penn State Cancer Institute, Penn State College of Medicine, Hershey, Pennsylvania, USA.
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9
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Liu Z, Fan K, Abudukeremu A, Gao M, Tan X, Mao X, Li X, Ma W, Ma X, Li C, Yang Y, Tu K, Chen J, Zhang Y, Guan Y. LIMA1 links the E3 ubiquitin ligase RNF40 to lipid metabolism. Cell Death Discov 2024; 10:298. [PMID: 38909032 PMCID: PMC11193757 DOI: 10.1038/s41420-024-02072-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 06/11/2024] [Accepted: 06/13/2024] [Indexed: 06/24/2024] Open
Abstract
LIMA1 is a LIM domain and Actin binding 1 protein that acts as a skeleton protein to promote cholesterol absorption, which makes it an ideal target for interfering with lipid metabolism. However, the detailed regulation of LIMA1 remains unclear. Here, we identified that ring finger protein 40 (RNF40), an E3 ubiquitin ligase previously known as an epigenetic modifier to increase H2B ubiquitination, mediated the ubiquitination of LIMA1 and thereby promoted its degradation in a proteasome-dependent manner. Fraction studies revealed that the 1-166aa fragment of LIMA1 was indispensable for the interaction with RNF40, and at least two domains of RNF40 might mediate the association of RNF40 with LIMA1. Notably, treatment with simvastatin dramatically decreased the levels of CHO and TG in control cells rather than cells with overexpressed LIMA1. Moreover, RNF40 significantly decreased lipid content, which could be reversed by LIMA1 overexpression. These findings suggest that E3 ubiquitin ligase RNF40 could directly target LIMA1 and promote its protein degradation in cytoplasm, leading to the suppression of lipid accumulation mediated by LIMA1. Collectively, this study unveils that RNF40 is a novel E3 ubiquitin ligase of LIMA1, which underpins its high therapeutic value to combat dysregulation of lipid metabolism.
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Affiliation(s)
- Zhan Liu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Second Medical College, Karamay, Xinjiang, China
| | - Kexin Fan
- The Institute of Molecular and Translational Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Aikedaimu Abudukeremu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Min Gao
- The Institute of Molecular and Translational Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xinyue Tan
- The Institute of Molecular and Translational Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xiaojuan Mao
- The Institute of Molecular and Translational Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xinyu Li
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Wenting Ma
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Xusheng Ma
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Second Medical College, Karamay, Xinjiang, China
| | - Caolong Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Second Medical College, Karamay, Xinjiang, China
| | - Yinglai Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Second Medical College, Karamay, Xinjiang, China
| | - Kangsheng Tu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jing Chen
- Department of Obstetrics, Xi 'an New Chang 'an Maternity Hospital, Xi'an, Shaanxi, China
| | - Yilei Zhang
- The Institute of Molecular and Translational Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Yaqun Guan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China.
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10
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Shen M, Yuan L, Zhang J, Wang X, Zhang M, Li H, Jing Y, Zeng F, Xie J. Phytosterols: Physiological Functions and Potential Application. Foods 2024; 13:1754. [PMID: 38890982 PMCID: PMC11171835 DOI: 10.3390/foods13111754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/13/2024] [Accepted: 05/28/2024] [Indexed: 06/20/2024] Open
Abstract
Dietary intake of natural substances to regulate physiological functions is currently regarded as a potential way of promoting health. As one of the recommended dietary ingredients, phytosterols that are natural bioactive compounds distributed in plants have received increasing attention for their health effects. Phytosterols have attracted great attention from scientists because of many physiological functions, for example, cholesterol-lowering, anticancer, anti-inflammatory, and immunomodulatory effects. In addition, the physiological functions of phytosterols, the purification, structure analysis, synthesis, and food application of phytosterols have been widely studied. Nowadays, many bioactivities of phytosterols have been assessed in vivo and in vitro. However, the mechanisms of their pharmacological activities are not yet fully understood, and in-depth investigation of the relationship between structure and function is crucial. Therefore, a contemporaneous overview of the extraction, beneficial properties, and the mechanisms, as well as the current states of phytosterol application, in the food field of phytosterols is provided in this review.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jianhua Xie
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China; (M.S.); (L.Y.); (J.Z.); (X.W.); (M.Z.); (H.L.); (Y.J.); (F.Z.)
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11
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Tsukui K, Suzuki M, Amma M, Tokudome Y. Ionic composition of Shotokuseki extract alters cell differentiation and lipid metabolism in three-dimensional cultured human epidermis. Cytotechnology 2024; 76:279-290. [PMID: 38736726 PMCID: PMC11082095 DOI: 10.1007/s10616-024-00616-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/06/2024] [Indexed: 05/14/2024] Open
Abstract
Corneocytes and intercellular lipids form the stratum corneum. The content and composition of intercellular lipids in the stratum corneum significantly affect skin barrier function. The purpose of this study was to demonstrate the effect of Shotokuseki extract (SE) on intercellular lipid production and metabolism in human three-dimensional cultured human epidermis. SE or ion mixtures containing five common ions were applied to three-dimensional cultured human epidermis for 2-8 days for each assay. The mRNA expression levels of epidermal differentiation markers and lipid metabolism genes were quantified by real-time PCR. After extraction of lipids from the epidermis, ceramide, sphingosine, free fatty acids, and cholesterol were quantified by LC-MS/MS, GC-MS, or HPLC. The results showed that the application of SE increased the gene expression levels of epidermal differentiation markers keratin10 and transglutaminase. Elongation of very long-chain fatty acids protein 3, serine palmitoyl transferase, ceramide synthase 3, and acid ceramidase mRNA expression levels increased and fatty acid synthase mRNA expression decreased. The content of each lipid, [EOS] ceramide decreased and total sphingosine content increased on day 4. On day 8 of application, ceramide [NDS], [NP], and [EODS] increased and total free fatty acid content decreased. These results show that SE alters the lipid composition of the epidermis, increasing ceramides and decreasing free fatty acids in the epidermis. The composition of the ions in the SE may be responsible for the changes in lipid composition. These behaviors were different from those observed when the ion mixture was applied. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10616-024-00616-3.
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Affiliation(s)
- Kei Tsukui
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
- Graduate School of Advanced Health Sciences, Saga University, Saga, Japan
| | | | - Miyu Amma
- Zeria Pharmaceutical Co., Ltd, Tokyo, Japan
| | - Yoshihiro Tokudome
- Graduate School of Advanced Health Sciences, Saga University, Saga, Japan
- Laboratory of Cosmetic Sciences, Regional Innovation Center, Saga University, 1 Honjo, Saga, 840-8502 Japan
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12
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Fan Y, Zhang R, Wang C, Pan M, Geng F, Zhong Y, Su H, Kou Y, Mo X, Lefai E, Han X, Chakravarti A, Guo D. STAT3 activation of SCAP-SREBP-1 signaling upregulates fatty acid synthesis to promote tumor growth. J Biol Chem 2024; 300:107351. [PMID: 38718868 PMCID: PMC11176798 DOI: 10.1016/j.jbc.2024.107351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 04/23/2024] [Accepted: 04/30/2024] [Indexed: 06/04/2024] Open
Abstract
SCAP plays a central role in controlling lipid homeostasis by activating SREBP-1, a master transcription factor in controlling fatty acid (FA) synthesis. However, how SCAP expression is regulated in human cancer cells remains unknown. Here, we revealed that STAT3 binds to the promoter of SCAP to activate its expression across multiple cancer cell types. Moreover, we identified that STAT3 also concurrently interacts with the promoter of SREBF1 gene (encoding SREBP-1), amplifying its expression. This dual action by STAT3 collaboratively heightens FA synthesis. Pharmacological inhibition of STAT3 significantly reduces the levels of unsaturated FAs and phospholipids bearing unsaturated FA chains by reducing the SCAP-SREBP-1 signaling axis and its downstream effector SCD1. Examination of clinical samples from patients with glioblastoma, the most lethal brain tumor, demonstrates a substantial co-expression of STAT3, SCAP, SREBP-1, and SCD1. These findings unveil STAT3 directly regulates the expression of SCAP and SREBP-1 to promote FA synthesis, ultimately fueling tumor progression.
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Affiliation(s)
- Yunzhou Fan
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA; Center for Cancer Metabolism, James Comprehensive Cancer Center at The Ohio State University, Columbus, Ohio, USA
| | - Rui Zhang
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA
| | - Chao Wang
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA
| | - Meixia Pan
- Barshop Institute for Longevity and Aging Studies, and Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Feng Geng
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA; Center for Cancer Metabolism, James Comprehensive Cancer Center at The Ohio State University, Columbus, Ohio, USA
| | - Yaogang Zhong
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA; Center for Cancer Metabolism, James Comprehensive Cancer Center at The Ohio State University, Columbus, Ohio, USA
| | - Huali Su
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA; Center for Cancer Metabolism, James Comprehensive Cancer Center at The Ohio State University, Columbus, Ohio, USA
| | - Yongjun Kou
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA; Center for Cancer Metabolism, James Comprehensive Cancer Center at The Ohio State University, Columbus, Ohio, USA
| | - Xiaokui Mo
- Biostatistic Center and Department of Bioinformatics, College of Medicine at The Ohio State University, Columbus, Ohio, USA
| | - Etienne Lefai
- Human Nutrition Unit, French National Research Institute for Agriculture, Food and Environment, University Clermont Auvergne, Clermont-Ferrand, France
| | - Xianlin Han
- Barshop Institute for Longevity and Aging Studies, and Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Arnab Chakravarti
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA
| | - Deliang Guo
- Department of Radiation Oncology, Ohio State Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, and College of Medicine at The Ohio State University, Columbus, Ohio, USA; Center for Cancer Metabolism, James Comprehensive Cancer Center at The Ohio State University, Columbus, Ohio, USA.
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13
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Igal RA. Death and the desaturase: implication of Stearoyl-CoA desaturase-1 in the mechanisms of cell stress, apoptosis, and ferroptosis. Biochimie 2024:S0300-9084(24)00125-1. [PMID: 38823621 DOI: 10.1016/j.biochi.2024.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/05/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024]
Abstract
Growth and proliferation of normal and cancerous cells necessitate a finely-tuned regulation of lipid metabolic pathways to ensure the timely supply of structural, energetic, and signaling lipid molecules. The synthesis and remodeling of lipids containing fatty acids with an appropriate carbon length and insaturation level are required for supporting each phase of the mechanisms of cell replication and survival. Mammalian Stearoyl-CoA desaturases (SCD), particularly SCD1, play a crucial role in modulating the fatty acid composition of cellular lipids, converting saturated fatty acids (SFA) into monounsaturated fatty acids (MUFA) in the endoplasmic reticulum (ER). Extensive research has elucidated in great detail the participation of SCD1 in the molecular mechanisms that govern cell replication in normal and cancer cells. More recently, investigations have shed new light on the functional and regulatory role of the Δ9-desaturase in the processes of cell stress and cell death. This review will examine the latest findings on the involvement of SCD1 in the molecular pathways of cell survival, particularly on the mechanisms of ER stress and autophagy, as well in apoptotic and non-apoptotic cell death.
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Affiliation(s)
- R Ariel Igal
- Institute of Human Nutrition and Department of Pediatrics, Columbia University Irving Medical Center, New York City, New York.
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14
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Guo QW, Lin J, Shen YL, Zheng YJ, Chen X, Su M, Zhang JC, Wang JH, Tang H, Su GM, Li ZK, Fang DZ. Reduced hepatic AdipoR2 by increased glucocorticoid mediates effect of psychosocial stress to elevate serum cholesterol. Mol Cell Endocrinol 2024; 592:112282. [PMID: 38815796 DOI: 10.1016/j.mce.2024.112282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/18/2024] [Accepted: 05/26/2024] [Indexed: 06/01/2024]
Abstract
Understanding the effects of psychosocial stress on serum cholesterol may offer valuable insights into the relationship between psychological disorders and endocrine diseases. However, these effects and their underlying mechanisms have not been elucidated yet. Here we show that serum corticosterone, total cholesterol and low-density lipoprotein cholesterol (LDL-C) are elevated in a mouse model of psychosocial stress. Furthermore, alterations occur in AdipoR2-mediated AMPK and PPARα signaling pathways in liver, accompanied by a decrease in LDL-C clearance and an increase in cholesterol synthesis. These changes are further verified in wild-type and AdipoR2 overexpression HepG2 cells incubated with cortisol and AdipoR agonist, and are finally confirmed by treating wild-type and hepatic-specific AdipoR2 overexpression mice with corticosterone. We conclude that increased glucocorticoid mediates the effects of psychosocial stress to elevate serum cholesterol by inhibiting AdipoR2-mediated AMPK and PPARα signaling to decrease LDL-C clearance and increase cholesterol synthesis in liver.
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Affiliation(s)
- Qi Wei Guo
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Yi Lin Shen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Yan Jiang Zheng
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Xu Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Mi Su
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Ji Cheng Zhang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Jin Hua Wang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Hui Tang
- Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University Chongqing, PR China
| | - Guo Ming Su
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China
| | - Zheng Ke Li
- Department of Thoracic/Head and Neck Medical Oncology, The MD Anderson Cancer Center, University of Texas Houston, TX, USA
| | - Ding Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University Chengdu, 610041, PR China.
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15
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Hendrix S, Tan JME, Ndoj K, Kingma J, Valiloo M, Zijlstra LF, Ottenhoff R, Seidah NG, Loregger A, Kober DL, Zelcer N. SPRING is a Dedicated Licensing Factor for SREBP-Specific Activation by S1P. Mol Cell Biol 2024; 44:123-137. [PMID: 38747374 PMCID: PMC11110692 DOI: 10.1080/10985549.2024.2348711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 04/10/2024] [Indexed: 05/18/2024] Open
Abstract
SREBP transcription factors are central regulators of lipid metabolism. Their proteolytic activation requires ER to the Golgi translocation and subsequent cleavage by site-1-protease (S1P). Produced as a proprotein, S1P undergoes autocatalytic cleavage from its precursor S1PA to mature S1PC form. Here, we report that SPRING (previously C12ORF29) and S1P interact through their ectodomains, and that this facilitates the autocatalytic cleavage of S1PA into its mature S1PC form. Reciprocally, we identified a S1P recognition-motif in SPRING and demonstrate that S1P-mediated cleavage leads to secretion of the SPRING ectodomain in cells, and in liver-specific Spring knockout (LKO) mice transduced with AAV-mSpring. By reconstituting SPRING variants into SPRINGKO cells we show that the SPRING ectodomain supports proteolytic maturation of S1P and SREBP signaling, but that S1P-mediated SPRING cleavage is not essential for these processes. Absence of SPRING modestly diminishes proteolytic maturation of S1PA→C and trafficking of S1PC to the Golgi. However, despite reaching the Golgi in SPRINGKO cells, S1PC fails to rescue SREBP signaling. Remarkably, whereas SREBP signaling was severely attenuated in SPRINGKO cells and LKO mice, that of ATF6, another S1P substrate, was unaffected in these models. Collectively, our study positions SPRING as a dedicated licensing factor for SREBP-specific activation by S1P.
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Affiliation(s)
- Sebastian Hendrix
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Josephine M. E. Tan
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Klevis Ndoj
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Jenina Kingma
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Masoud Valiloo
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Lobke F. Zijlstra
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Roelof Ottenhoff
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Nabil G. Seidah
- Laboratory of Biochemical Neuroendocrinology, Montreal Clinical Research Institute (IRCM), University of Montreal, Montréal, Québec, Canada
| | - Anke Loregger
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Daniel L. Kober
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Noam Zelcer
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences and Gastroenterology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
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16
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Fu R, Xue W, Liang J, Li X, Zheng J, Wang L, Zhang M, Meng J. SOAT1 regulates cholesterol metabolism to induce EMT in hepatocellular carcinoma. Cell Death Dis 2024; 15:325. [PMID: 38724499 PMCID: PMC11082151 DOI: 10.1038/s41419-024-06711-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 04/23/2024] [Accepted: 04/29/2024] [Indexed: 05/12/2024]
Abstract
Cholesterol metabolism reprogramming is one of the significant characteristics of hepatocellular carcinoma (HCC). Cholesterol increases the risk of epithelial-mesenchymal transition (EMT) in cancer. Sterol O-acyltransferases 1 (SOAT1) maintains the cholesterol homeostasis. However, the exact mechanistic contribution of SOAT1 to EMT in HCC remains unclear. Here we demonstrated that SOAT1 positively related to poor prognosis of HCC, EMT markers and promoted cell migration and invasion in vitro, which was mediated by the increased cholesterol in plasmalemma and cholesterol esters accumulation. Furthermore, we reported that SOAT1 disrupted cholesterol metabolism homeostasis to accelerate tumorigenesis and development in HCC xenograft and NAFLD-HCC. Also, we detected that nootkatone, a sesquiterpene ketone, inhibited EMT by targeting SOAT1 in vitro and in vivo. Collectively, our finding indicated that SOAT1 promotes EMT and contributes to hepatocarcinogenesis by increasing cholesterol esterification, which is suppressed efficiently by nootkatone. This study demonstrated that SOAT1 is a potential biomarker and therapeutic target in NAFLD-HCC and SOAT1-targeting inhibitors are expected to be the potential new therapeutic treatment for HCC.
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Affiliation(s)
- Rongrong Fu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Wenqing Xue
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Jingjie Liang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Xinran Li
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Juan Zheng
- Joint Laboratory for Translational Medicine Research, Liaocheng People's Hospital, Liaocheng, China
| | - Lechen Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Min Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China.
- China-Russia Agricultural Products Processing Joint Laboratory, Tianjin Agricultural University, Tianjin, China.
| | - Jing Meng
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China.
- Tianjin International Joint Academy of Biomedicine, Tianjin, China.
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17
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Zhang J, Liu B, Xu C, Ji C, Yin A, Liu Y, Yao Y, Li B, Chen T, Shen L, Wu Y. Cholesterol homeostasis confers glioma malignancy triggered by hnRNPA2B1-dependent regulation of SREBP2 and LDLR. Neuro Oncol 2024; 26:684-700. [PMID: 38070488 PMCID: PMC10995519 DOI: 10.1093/neuonc/noad233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND Dysregulation of cholesterol metabolism is a significant characteristic of glioma, yet the underlying mechanisms are largely unknown. N6-methyladenosine (m6A) modification has been implicated in promoting tumor development and progression. The aim of this study was to determine the key m6A regulatory proteins involved in the progression of glioma, which is potentially associated with the reprogramming of cholesterol homeostasis. METHODS Bioinformatics analysis was performed to determine the association of m6A modification with glioma malignancy from The Cancer Genome Atlas and Genotype-Tissue Expression datasets. Glioma stem cell (GSC) self-renewal was determined by tumor sphere formation and bioluminescence image assay. RNA sequencing and lipidomic analysis were performed for cholesterol homeostasis analysis. RNA immunoprecipitation and luciferase reporter assay were performed to determine hnRNPA2B1-dependent regulation of sterol regulatory element-binding protein 2 (SREBP2) and low-density lipoprotein receptor (LDLR) mRNA. The methylation status of hnRNPA2B1 promoter was determined by bioinformatic analysis and methylation-specific PCR assay. RESULTS Among the m6A-regulatory proteins, hnRNPA2B1 was demonstrated the most important independent prognostic risk factor for glioma. hnRNPA2B1 ablation exhibited a significant tumor-suppressive effect on glioma cell proliferation, GSC self-renewal and tumorigenesis. hnRNPA2B1 triggers de novo cholesterol synthesis by inducing HMGCR through the stabilization of SREBP2 mRNA. m6A modification of SREBP2 or LDLR mRNA is required for hnRNPA2B1-mediated mRNA stability. The hypomethylation of cg21815882 site on hnRNPA2B1 promoter confers elevated expression of hnRNPA2B1 in glioma tissues. The combination of targeting hnRNPA2B1 and cholesterol metabolism exhibited remarkable antitumor effects, suggesting valuable clinical implications for glioma treatment. CONCLUSIONS hnRNPA2B1 facilitates cholesterol uptake and de novo synthesis, thereby contributing to glioma stemness and malignancy.
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Affiliation(s)
- Juan Zhang
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Bei Liu
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
- Department of Aerospace Hygiene, School of Aerospace Medicine, Fourth Military Medical University, Xi’an, China
| | - Changwei Xu
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Chenchen Ji
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi’an, China
| | - Anan Yin
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Yifeng Liu
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Yan Yao
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Bowen Li
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
- Department of Aerospace Hygiene, School of Aerospace Medicine, Fourth Military Medical University, Xi’an, China
| | - Tangdong Chen
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Liangliang Shen
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi’an, China
| | - Yuanming Wu
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an, China
- Shaanxi Provincial Key Laboratory of Clinical Genetics, Fourth Military Medical University, Xi’an, Shaanxi, China
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18
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Stahl F, Evert BO, Han X, Breuer P, Wüllner U. Spinocerebellar Ataxia Type 3 Pathophysiology-Implications for Translational Research and Clinical Studies. Int J Mol Sci 2024; 25:3984. [PMID: 38612794 PMCID: PMC11012515 DOI: 10.3390/ijms25073984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/26/2024] [Accepted: 03/29/2024] [Indexed: 04/14/2024] Open
Abstract
The spinocerebellar ataxias (SCA) comprise a group of inherited neurodegenerative diseases. Machado-Joseph Disease (MJD) or spinocerebellar ataxia 3 (SCA3) is the most common autosomal dominant form, caused by the expansion of CAG repeats within the ataxin-3 (ATXN3) gene. This mutation results in the expression of an abnormal protein containing long polyglutamine (polyQ) stretches that confers a toxic gain of function and leads to misfolding and aggregation of ATXN3 in neurons. As a result of the neurodegenerative process, SCA3 patients are severely disabled and die prematurely. Several screening approaches, e.g., druggable genome-wide and drug library screenings have been performed, focussing on the reduction in stably overexpressed ATXN3(polyQ) protein and improvement in the resultant toxicity. Transgenic overexpression models of toxic ATXN3, however, missed potential modulators of endogenous ATXN3 regulation. In another approach to identify modifiers of endogenous ATXN3 expression using a CRISPR/Cas9-modified SK-N-SH wild-type cell line with a GFP-T2A-luciferase (LUC) cassette under the control of the endogenous ATXN3 promotor, four statins were identified as potential activators of expression. We here provide an overview of the high throughput screening approaches yet performed to find compounds or genomic modifiers of ATXN3(polyQ) toxicity in different SCA3 model organisms and cell lines to ameliorate and halt SCA3 progression in patients. Furthermore, the putative role of cholesterol in neurodegenerative diseases (NDDs) in general and SCA3 in particular is discussed.
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Affiliation(s)
- Fabian Stahl
- German Centre for Neurodegenerative Disease (DZNE), 53127 Bonn, Germany;
| | - Bernd O. Evert
- Departments of Neurology and Neurodegenerative Diseases, University of Bonn, 53127 Bonn, Germany; (B.O.E.); (X.H.); (P.B.)
| | - Xinyu Han
- Departments of Neurology and Neurodegenerative Diseases, University of Bonn, 53127 Bonn, Germany; (B.O.E.); (X.H.); (P.B.)
| | - Peter Breuer
- Departments of Neurology and Neurodegenerative Diseases, University of Bonn, 53127 Bonn, Germany; (B.O.E.); (X.H.); (P.B.)
| | - Ullrich Wüllner
- German Centre for Neurodegenerative Disease (DZNE), 53127 Bonn, Germany;
- Departments of Neurology and Neurodegenerative Diseases, University of Bonn, 53127 Bonn, Germany; (B.O.E.); (X.H.); (P.B.)
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19
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Peeples ES, Mirnics K, Korade Z. Chemical Inhibition of Sterol Biosynthesis. Biomolecules 2024; 14:410. [PMID: 38672427 PMCID: PMC11048061 DOI: 10.3390/biom14040410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Cholesterol is an essential molecule of life, and its synthesis can be inhibited by both genetic and nongenetic mechanisms. Hundreds of chemicals that we are exposed to in our daily lives can alter sterol biosynthesis. These also encompass various classes of FDA-approved medications, including (but not limited to) commonly used antipsychotic, antidepressant, antifungal, and cardiovascular medications. These medications can interfere with various enzymes of the post-lanosterol biosynthetic pathway, giving rise to complex biochemical changes throughout the body. The consequences of these short- and long-term homeostatic disruptions are mostly unknown. We performed a comprehensive review of the literature and built a catalogue of chemical agents capable of inhibiting post-lanosterol biosynthesis. This process identified significant gaps in existing knowledge, which fall into two main areas: mechanisms by which sterol biosynthesis is altered and consequences that arise from the inhibitions of the different steps in the sterol biosynthesis pathway. The outcome of our review also reinforced that sterol inhibition is an often-overlooked mechanism that can result in adverse consequences and that there is a need to develop new safety guidelines for the use of (novel and already approved) medications with sterol biosynthesis inhibiting side effects, especially during pregnancy.
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Affiliation(s)
- Eric S. Peeples
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE 68198, USA;
- Child Health Research Institute, Omaha, NE 68198, USA;
- Division of Neonatology, Children’s Nebraska, Omaha, NE 68114, USA
| | - Karoly Mirnics
- Child Health Research Institute, Omaha, NE 68198, USA;
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Pharmacology & Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Munroe-Meyer Institute, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Zeljka Korade
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE 68198, USA;
- Child Health Research Institute, Omaha, NE 68198, USA;
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
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20
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Hu X, Chen F, Jia L, Long A, Peng Y, Li X, Huang J, Wei X, Fang X, Gao Z, Zhang M, Liu X, Chen YG, Wang Y, Zhang H, Wang Y. A gut-derived hormone regulates cholesterol metabolism. Cell 2024; 187:1685-1700.e18. [PMID: 38503280 DOI: 10.1016/j.cell.2024.02.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/18/2023] [Accepted: 02/21/2024] [Indexed: 03/21/2024]
Abstract
The reciprocal coordination between cholesterol absorption in the intestine and de novo cholesterol synthesis in the liver is essential for maintaining cholesterol homeostasis, yet the mechanisms governing the opposing regulation of these processes remain poorly understood. Here, we identify a hormone, Cholesin, which is capable of inhibiting cholesterol synthesis in the liver, leading to a reduction in circulating cholesterol levels. Cholesin is encoded by a gene with a previously unknown function (C7orf50 in humans; 3110082I17Rik in mice). It is secreted from the intestine in response to cholesterol absorption and binds to GPR146, an orphan G-protein-coupled receptor, exerting antagonistic downstream effects by inhibiting PKA signaling and thereby suppressing SREBP2-controlled cholesterol synthesis in the liver. Therefore, our results demonstrate that the Cholesin-GPR146 axis mediates the inhibitory effect of intestinal cholesterol absorption on hepatic cholesterol synthesis. This discovered hormone, Cholesin, holds promise as an effective agent in combating hypercholesterolemia and atherosclerosis.
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Affiliation(s)
- Xiaoli Hu
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Fengyi Chen
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Liangjie Jia
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Aijun Long
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ying Peng
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xu Li
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Junfeng Huang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xueyun Wei
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xinlei Fang
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Zihua Gao
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Mengxian Zhang
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xiao Liu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan 430072, China
| | - Ye-Guang Chen
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China; Guangzhou Laboratory, Guangzhou 510005, China; School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang 330031, China
| | - Yan Wang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan 430072, China
| | - Huijie Zhang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Yiguo Wang
- State Key Laboratory of Membrane Biology, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.
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21
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Zhu W, Hong Y, Tong Z, He X, Li Y, Wang H, Gao X, Song P, Zhang X, Wu X, Tan Z, Huang W, Liu Z, Bao Y, Ma J, Zheng N, Xie C, Ke X, Zhou W, Jia W, Li M, Zhong J, Sheng L, Li H. Activation of hepatic adenosine A1 receptor ameliorates MASH via inhibiting SREBPs maturation. Cell Rep Med 2024; 5:101477. [PMID: 38508143 PMCID: PMC10983109 DOI: 10.1016/j.xcrm.2024.101477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 12/10/2023] [Accepted: 02/21/2024] [Indexed: 03/22/2024]
Abstract
Metabolic (dysfunction)-associated steatohepatitis (MASH) is the advanced stage of metabolic (dysfunction)-associated fatty liver disease (MAFLD) lacking approved clinical drugs. Adenosine A1 receptor (A1R), belonging to the G-protein-coupled receptors (GPCRs) superfamily, is mainly distributed in the central nervous system and major peripheral organs with wide-ranging physiological functions; however, the exact role of hepatic A1R in MAFLD remains unclear. Here, we report that liver-specific depletion of A1R aggravates while overexpression attenuates diet-induced metabolic-associated fatty liver (MAFL)/MASH in mice. Mechanistically, activation of hepatic A1R promotes the competitive binding of sterol-regulatory element binding protein (SREBP) cleavage-activating protein (SCAP) to sequestosome 1 (SQSTM1), rather than protein kinase A (PKA) leading to SCAP degradation in lysosomes. Reduced SCAP hinders SREBP1c/2 maturation and thus suppresses de novo lipogenesis and inflammation. Higher hepatic A1R expression is observed in patients with MAFL/MASH and high-fat diet (HFD)-fed mice, which is supposed to be a physiologically adaptive response because A1R agonists attenuate MAFL/MASH in an A1R-dependent manner. These results highlight that hepatic A1R is a potential target for MAFL/MASH therapy.
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Affiliation(s)
- Weize Zhu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ying Hong
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhaowei Tong
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xiaofang He
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yan Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hao Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xinxin Gao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Pengtao Song
- Department of Pathology, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xianshan Zhang
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xiaochang Wu
- Department of Hepatobiliary Surgery, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Zhenhua Tan
- Department of Hepatobiliary Surgery, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Wenjin Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zekun Liu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yiyang Bao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Junli Ma
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ningning Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Cen Xie
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xisong Ke
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wen Zhou
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural, Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Wei Jia
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
| | - Mingxiao Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jing Zhong
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China.
| | - Lili Sheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Houkai Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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22
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Montero-Vega MT, Matilla J, Bazán E, Reimers D, De Andrés-Martín A, Gonzalo-Gobernado R, Correa C, Urbano F, Gómez-Coronado D. Fluvastatin Converts Human Macrophages into Foam Cells with Increased Inflammatory Response to Inactivated Mycobacterium tuberculosis H37Ra. Cells 2024; 13:536. [PMID: 38534380 DOI: 10.3390/cells13060536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
Cholesterol biosynthesis inhibitors (statins) protect hypercholesterolemic patients against developing active tuberculosis, suggesting that these drugs could help the host to control the pathogen at the initial stages of the disease. This work studies the effect of fluvastatin on the early response of healthy peripheral blood mononuclear cells (PBMCs) to inactivated Mycobacterium tuberculosis (Mtb) H37Ra. We found that in fluvastatin-treated PBMCs, most monocytes/macrophages became foamy cells that overproduced NLRP3 inflammasome components in the absence of immune stimulation, evidencing important cholesterol metabolism/immunity connections. When both fluvastatin-treated and untreated PBMCs were exposed to Mtb H37Ra, a small subset of macrophages captured large amounts of bacilli and died, concentrating the bacteria in necrotic areas. In fluvastatin-untreated cultures, most of the remaining macrophages became epithelioid cells that isolated these areas of cell death in granulomatous structures that barely produced IFNγ. By contrast, in fluvastatin-treated cultures, foamy macrophages surrounded the accumulated bacteria, degraded them, markedly activated caspase-1 and elicited a potent IFNγ/cytotoxic response. In rabbits immunized with the same bacteria, fluvastatin increased the tuberculin test response. We conclude that statins may enhance macrophage efficacy to control Mtb, with the help of adaptive immunity, offering a promising tool in the design of alternative therapies to fight tuberculosis.
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Affiliation(s)
- María Teresa Montero-Vega
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Joaquín Matilla
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Eulalia Bazán
- Servicio de Neurobiología-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Diana Reimers
- Servicio de Neurobiología-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Ana De Andrés-Martín
- Servicio de Inmunología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Rafael Gonzalo-Gobernado
- Departamento de Biología Molecular y Celular, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain
| | - Carlos Correa
- Unidad de Cirugía Experimental y Animalario, Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Francisco Urbano
- Servicio Interdepartamental de Investigación (SIdI), Facultad de Medicina, Universidad Autónoma, 28029 Madrid, Spain
| | - Diego Gómez-Coronado
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
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23
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Jiang W, Jin WL, Xu AM. Cholesterol metabolism in tumor microenvironment: cancer hallmarks and therapeutic opportunities. Int J Biol Sci 2024; 20:2044-2071. [PMID: 38617549 PMCID: PMC11008265 DOI: 10.7150/ijbs.92274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/27/2024] [Indexed: 04/16/2024] Open
Abstract
Cholesterol is crucial for cell survival and growth, and dysregulation of cholesterol homeostasis has been linked to the development of cancer. The tumor microenvironment (TME) facilitates tumor cell survival and growth, and crosstalk between cholesterol metabolism and the TME contributes to tumorigenesis and tumor progression. Targeting cholesterol metabolism has demonstrated significant antitumor effects in preclinical and clinical studies. In this review, we discuss the regulatory mechanisms of cholesterol homeostasis and the impact of its dysregulation on the hallmarks of cancer. We also describe how cholesterol metabolism reprograms the TME across seven specialized microenvironments. Furthermore, we discuss the potential of targeting cholesterol metabolism as a therapeutic strategy for tumors. This approach not only exerts antitumor effects in monotherapy and combination therapy but also mitigates the adverse effects associated with conventional tumor therapy. Finally, we outline the unresolved questions and suggest potential avenues for future investigations on cholesterol metabolism in relation to cancer.
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Affiliation(s)
- Wen Jiang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, P. R. China
| | - Wei-Lin Jin
- Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China
| | - A-Man Xu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, P. R. China
- Anhui Public Health Clinical Center, Hefei 230022, P. R. China
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24
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Politiek FA, Turkenburg M, Ofman R, Waterham HR. Mevalonate kinase-deficient THP-1 cells show a disease-characteristic pro-inflammatory phenotype. Front Immunol 2024; 15:1379220. [PMID: 38550596 PMCID: PMC10972877 DOI: 10.3389/fimmu.2024.1379220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 02/29/2024] [Indexed: 04/02/2024] Open
Abstract
Objective Bi-allelic pathogenic variants in the MVK gene, which encodes mevalonate kinase (MK), an essential enzyme in isoprenoid biosynthesis, cause the autoinflammatory metabolic disorder mevalonate kinase deficiency (MKD). We generated and characterized MK-deficient monocytic THP-1 cells to identify molecular and cellular mechanisms that contribute to the pro-inflammatory phenotype of MKD. Methods Using CRISPR/Cas9 genome editing, we generated THP-1 cells with different MK deficiencies mimicking the severe (MKD-MA) and mild end (MKD-HIDS) of the MKD disease spectrum. Following confirmation of previously established disease-specific biochemical hallmarks, we studied the consequences of the different MK deficiencies on LPS-stimulated cytokine release, glycolysis versus oxidative phosphorylation rates, cellular chemotaxis and protein kinase activity. Results Similar to MKD patients' cells, MK deficiency in the THP-1 cells caused a pro-inflammatory phenotype with a severity correlating with the residual MK protein levels. In the MKD-MA THP-1 cells, MK protein levels were barely detectable, which affected protein prenylation and was accompanied by a profound pro-inflammatory phenotype. This included a markedly increased LPS-stimulated release of pro-inflammatory cytokines and a metabolic switch from oxidative phosphorylation towards glycolysis. We also observed increased activity of protein kinases that are involved in cell migration and proliferation, and in innate and adaptive immune responses. The MKD-HIDS THP-1 cells had approximately 20% residual MK activity and showed a milder phenotype, which manifested mainly upon LPS stimulation or exposure to elevated temperatures. Conclusion MK-deficient THP-1 cells show the biochemical and pro-inflammatory phenotype of MKD and are a good model to study underlying disease mechanisms and therapeutic options of this autoinflammatory disorder.
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Affiliation(s)
- Frouwkje A. Politiek
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
| | - Marjolein Turkenburg
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, Netherlands
| | - Rob Ofman
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, Netherlands
| | - Hans R. Waterham
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
- Amsterdam Reproduction & Development, Amsterdam, Netherlands
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25
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Agostini F, Pereyra L, Dale J, Yambire KF, Maglioni S, Schiavi A, Ventura N, Milosevic I, Raimundo N. Up-regulation of cholesterol synthesis by lysosomal defects requires a functional mitochondrial respiratory chain. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.06.583589. [PMID: 38496624 PMCID: PMC10942416 DOI: 10.1101/2024.03.06.583589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Mitochondria and lysosomes are two organelles that carry out both signaling and metabolic roles in the cells. Recent evidence has shown that mitochondria and lysosomes are dependent on one another, as primary defects in one cause secondary defects in the other. Nevertheless, the signaling consequences of primary mitochondrial malfunction and of primary lysosomal defects are not similar, despite in both cases there are impairments of mitochondria and of lysosomes. Here, we used RNA sequencing to obtain transcriptomes from cells with primary mitochondrial or lysosomal defects, to identify what are the global cellular consequences that are associated with malfunction of mitochondria or lysosomes. We used these data to determine what are the pathways that are affected by defects in both organelles, which revealed a prominent role for the cholesterol synthesis pathway. This pathway is transcriptionally up-regulated in cellular and mouse models of lysosomal defects and is transcriptionally down-regulated in cellular and mouse models of mitochondrial defects. We identified a role for post-transcriptional regulation of the transcription factor SREBF1, a master regulator of cholesterol and lipid biosynthesis, in models of mitochondrial respiratory chain deficiency. Furthermore, the retention of Ca 2+ in the lysosomes of cells with mitochondrial respiratory chain defects contributes to the differential regulation of the cholesterol synthesis pathway in the mitochondrial and lysosomal defects tested. Finally, we verified in vivo , using models of mitochondria-associated diseases in C. elegans , that normalization of lysosomal Ca 2+ levels results in partial rescue of the developmental arrest induced by the respiratory chain deficiency.
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26
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Jung S, Yu H, Ko KS. Novel effects of prohibitin 1 expression level on cholesterol and lipid homeostasis. J Nutr Biochem 2024; 125:109561. [PMID: 38176624 DOI: 10.1016/j.jnutbio.2023.109561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/15/2023] [Accepted: 12/31/2023] [Indexed: 01/06/2024]
Abstract
Prohibitin 1 (PHB1) plays an important role in maintaining liver health and function. The PHB1 level is decreased in patients with various liver diseases. In this study, liver cancer was induced in liver-specific Phb1 knock-out mice, which were then subjected to hepatic gene and metabolomic analysis. The reduced expression of mRNA expression level of Phb1 induced down-regulation of cholesterol and lipid metabolism. This result was confirmed in a cell model. The expression of Hmgcr and Srebp2 in normal cells decreased when they were treated with cholesterol. In HepG2 cells in which the expression of Phb1 was lowered using siPhb1, the mRNA expression of Hmgcr and Srebp2 also decreased when the cells were treated with cholesterol. Furthermore, in the Phb1 knock-out group, the expression of Fasn and Srebp1 related to lipid metabolism increased but the expression of Ldlr decreased. The expression of Cat and Gpx in cells increased when the expression of Phb1 decreased. Altogether, a decreased expression of Phb1 induces down-regulation of cholesterol- and lipid metabolism-related genes and cholesterol homeostasis is not achieved, particularly in a cholesterol-rich environment. The decrease in Phb1 expression causes excessive oxidative stress in cholesterol and lipid metabolism. Therefore, maintaining a normal level of PHB1 expression is crucial for maintaining cholesterol homeostasis in the liver. Thus, PHB1 may become an important target for non-alcoholic fatty liver disease and lipid metabolism in the future.
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Affiliation(s)
- Soohan Jung
- Department of Integrated Biomedical and Life Science, Korea University, Seoul, Republic of Korea
| | - Hyeonju Yu
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, Republic of Korea
| | - Kwang Suk Ko
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, Republic of Korea.
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27
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Zhao Z, Li B, Chen Q, Xiang X, Xu X, Han S, Lai W, Li Y, Xu W, Mai K, Ai Q. Dietary palm oil enhances Sterol regulatory element-binding protein 2-mediated cholesterol biosynthesis through inducing endoplasmic reticulum stress in muscle of large yellow croaker ( Larimichthys crocea). Br J Nutr 2024; 131:553-566. [PMID: 37699661 DOI: 10.1017/s0007114523001344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Sterol regulatory element-binding protein 2 (SREBP2) is considered to be a major regulator to control cholesterol homoeostasis in mammals. However, the role of SREBP2 in teleost remains poorly understand. Here, we explored the molecular characterisation of SREBP2 and identified SREBP2 as a key modulator for 3-hydroxy-3-methylglutaryl-coenzyme A reductase and 7-dehydrocholesterol reductase, which were rate-limiting enzymes of cholesterol biosynthesis. Moreover, dietary palm oil in vivo or palmitic acid (PA) treatment in vitro elevated cholesterol content through triggering SREBP2-mediated cholesterol biosynthesis in large yellow croaker. Furthermore, our results also found that PA-induced activation of SREBP2 was dependent on the stimulating of endoplasmic reticulum stress (ERS) in croaker myocytes and inhibition of ERS by 4-Phenylbutyric acid alleviated PA-induced SREBP2 activation and cholesterol biosynthesis. In summary, our findings reveal a novel insight for understanding the role of SREBP2 in the regulation of cholesterol metabolism in fish and may deepen the link between dietary fatty acid and cholesterol biosynthesis.
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Affiliation(s)
- Zengqi Zhao
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Baolin Li
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Qiang Chen
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Xiaojun Xiang
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Xiang Xu
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Shangzhe Han
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Wencong Lai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Yueru Li
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Wei Xu
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
| | - Kangsen Mai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao, Shandong266237, People's Republic of China
| | - Qinghui Ai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, Qingdao, Shandong266003, People's Republic of China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao, Shandong266237, People's Republic of China
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28
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Wang Y, Gao L. Cholesterol: A friend to viruses. Int Rev Immunol 2024; 43:248-262. [PMID: 38372266 DOI: 10.1080/08830185.2024.2314577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 01/28/2024] [Indexed: 02/20/2024]
Abstract
Cholesterol is a key life-sustaining molecule which regulates membrane fluidity and serves as a signaling mediator. Cholesterol homeostasis is closely related to various pathological conditions including tumor, obesity, atherosclerosis, Alzheimer's disease and viral infection. Viral infection disrupts host cholesterol homeostasis, facilitating their own survival. Meanwhile, the host cells strive to reduce cholesterol accessibility to limit viral infection. This review focuses on the regulation of cholesterol metabolism and the role of cholesterol in viral infection, specifically providing an overview of cholesterol as a friend to promote viral entry, replication, assembly, release and immune evasion, which might inspire valuable thinking for pathogenesis and intervention of viral infection.
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Affiliation(s)
- Yingchun Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, P.R. China
| | - Lifen Gao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, P.R. China
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29
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Chen J, Zhou Y, Liu Z, Lu Y, Jiang Y, Cao K, Zhou N, Wang D, Zhang C, Zhou N, Shi K, Zhang L, Zhou L, Wang Z, Zhang H, Tang K, Ma J, Lv J, Huang B. Hepatic glycogenesis antagonizes lipogenesis by blocking S1P via UDPG. Science 2024; 383:eadi3332. [PMID: 38359126 DOI: 10.1126/science.adi3332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 12/20/2023] [Indexed: 02/17/2024]
Abstract
The identification of mechanisms to store glucose carbon in the form of glycogen rather than fat in hepatocytes has important implications for the prevention of nonalcoholic fatty liver disease (NAFLD) and other chronic metabolic diseases. In this work, we show that glycogenesis uses its intermediate metabolite uridine diphosphate glucose (UDPG) to antagonize lipogenesis, thus steering both mouse and human hepatocytes toward storing glucose carbon as glycogen. The underlying mechanism involves transport of UDPG to the Golgi apparatus, where it binds to site-1 protease (S1P) and inhibits S1P-mediated cleavage of sterol regulatory element-binding proteins (SREBPs), thereby inhibiting lipogenesis in hepatocytes. Consistent with this mechanism, UDPG administration is effective at treating NAFLD in a mouse model and human organoids. These findings indicate a potential opportunity to ameliorate disordered fat metabolism in the liver.
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Affiliation(s)
- Jie Chen
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Yabo Zhou
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Zhuohang Liu
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Yan Lu
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Yishen Jiang
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Kexin Cao
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Nannan Zhou
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Dianheng Wang
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Chaoqi Zhang
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Ning Zhou
- Department of Pathology, Sichuan Mianyang 404 Hospital, Sichuan 621000, China
| | - Keqing Shi
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Lu Zhang
- Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Li Zhou
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Zhenfeng Wang
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Huafeng Zhang
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ke Tang
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jingwei Ma
- Department of Immunology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiadi Lv
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Bo Huang
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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30
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Xu S, Smothers JC, Rye D, Endapally S, Chen H, Li S, Liang G, Kinnebrew M, Rohatgi R, Posner BA, Radhakrishnan A. A cholesterol-binding bacterial toxin provides a strategy for identifying a specific Scap inhibitor that blocks lipid synthesis in animal cells. Proc Natl Acad Sci U S A 2024; 121:e2318024121. [PMID: 38330014 PMCID: PMC10873635 DOI: 10.1073/pnas.2318024121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/15/2023] [Indexed: 02/10/2024] Open
Abstract
Lipid synthesis is regulated by the actions of Scap, a polytopic membrane protein that binds cholesterol in membranes of the endoplasmic reticulum (ER). When ER cholesterol levels are low, Scap activates SREBPs, transcription factors that upregulate genes for synthesis of cholesterol, fatty acids, and triglycerides. When ER cholesterol levels rise, the sterol binds to Scap, triggering conformational changes that prevent activation of SREBPs and halting synthesis of lipids. To achieve a molecular understanding of how cholesterol regulates the Scap/SREBP machine and to identify therapeutics for dysregulated lipid metabolism, cholesterol-mimetic compounds that specifically bind and inhibit Scap are needed. To accomplish this goal, we focused on Anthrolysin O (ALO), a pore-forming bacterial toxin that binds cholesterol with a specificity and sensitivity that is uncannily similar to Scap. We reasoned that a small molecule that would bind and inhibit ALO might also inhibit Scap. High-throughput screening of a ~300,000-compound library for ALO-binding unearthed one molecule, termed UT-59, which binds to Scap's cholesterol-binding site. Upon binding, UT-59 triggers the same conformation changes in Scap as those induced by cholesterol and blocks activation of SREBPs and lipogenesis in cultured cells. UT-59 also inhibits SREBP activation in the mouse liver. Unlike five previously reported inhibitors of SREBP activation, UT-59 is the only one that acts specifically by binding to Scap's cholesterol-binding site. Our approach to identify specific Scap inhibitors such as UT-59 holds great promise in developing therapeutic leads for human diseases stemming from elevated SREBP activation, such as fatty liver and certain cancers.
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Affiliation(s)
- Shimeng Xu
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390
| | - Jared C. Smothers
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390
| | - Daphne Rye
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390
| | - Shreya Endapally
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390
| | - Hong Chen
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX75390
| | - Shili Li
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390
| | - Guosheng Liang
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390
| | - Maia Kinnebrew
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA94305
- Department of Medicine, Stanford University School of Medicine, Stanford, CA94305
| | - Rajat Rohatgi
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA94305
- Department of Medicine, Stanford University School of Medicine, Stanford, CA94305
| | - Bruce A. Posner
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX75390
| | - Arun Radhakrishnan
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390
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31
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Faulkner RA, Yang Y, Tsien J, Qin T, DeBose-Boyd RA. Direct binding to sterols accelerates endoplasmic reticulum-associated degradation of HMG CoA reductase. Proc Natl Acad Sci U S A 2024; 121:e2318822121. [PMID: 38319967 PMCID: PMC10873557 DOI: 10.1073/pnas.2318822121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/09/2024] [Indexed: 02/08/2024] Open
Abstract
The maintenance of cholesterol homeostasis is crucial for normal function at both the cellular and organismal levels. Two integral membrane proteins, 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR) and Scap, are key targets of a complex feedback regulatory system that operates to ensure cholesterol homeostasis. HMGCR catalyzes the rate-limiting step in the transformation of the 2-carbon precursor acetate to 27-carbon cholesterol. Scap mediates proteolytic activation of sterol regulatory element-binding protein-2 (SREBP-2), a membrane-bound transcription factor that controls expression of genes involved in the synthesis and uptake of cholesterol. Sterol accumulation triggers binding of HMGCR to endoplasmic reticulum (ER)-localized Insig proteins, leading to the enzyme's ubiquitination and proteasome-mediated ER-associated degradation (ERAD). Sterols also induce binding of Insigs to Scap, which leads to sequestration of Scap and its bound SREBP-2 in the ER, thereby preventing proteolytic activation of SREBP-2 in the Golgi. The oxygenated cholesterol derivative 25-hydroxycholesterol (25HC) and the methylated cholesterol synthesis intermediate 24,25-dihydrolanosterol (DHL) differentially modulate HMGCR and Scap. While both sterols promote binding of HMGCR to Insigs for ubiquitination and subsequent ERAD, only 25HC inhibits the Scap-mediated proteolytic activation of SREBP-2. We showed previously that 1,1-bisphosphonate esters mimic DHL, accelerating ERAD of HMGCR while sparing SREBP-2 activation. Building on these results, our current studies reveal specific, Insig-independent photoaffinity labeling of HMGCR by photoactivatable derivatives of the 1,1-bisphosphonate ester SRP-3042 and 25HC. These findings disclose a direct sterol binding mechanism as the trigger that initiates the HMGCR ERAD pathway, providing valuable insights into the intricate mechanisms that govern cholesterol homeostasis.
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Affiliation(s)
- Rebecca A. Faulkner
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390-9046
| | - Yangyan Yang
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX75390-9046
| | - Jet Tsien
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX75390-9046
| | - Tian Qin
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX75390-9046
| | - Russell A. DeBose-Boyd
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX75390-9046
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32
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Li QL, Zheng H, Luo Z, Wu LX, Xu PC, Guo JC, Song YF, Tan XY. Characterization and expression analysis of seven lipid metabolism-related genes in yellow catfish Pelteobagrus fulvidraco fed high fat and bile acid diet. Gene 2024; 894:147972. [PMID: 37944648 DOI: 10.1016/j.gene.2023.147972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/27/2023] [Accepted: 11/06/2023] [Indexed: 11/12/2023]
Abstract
SREBPs, such as SREBP1 and SREBP2, were the key transcriptional factors regulating lipid metabolism. The processing of SREBPs involved many genes, such as scap, s1p, s2p, cideb. Here, we deciphered the full-length cDNA sequences of scap, srebp1, srebp2, s1p, s2p, cideb and cidec from yellow catfish Pelteobagrus fulvidraco. Their full-length cDNA sequences ranged from 1587 to 3884 bp, and their ORF length from 1191 to 2979 bp, encoding 396-992 amino acids. Some conservative domains were predicted, including the multiple transmembrane domains in SCAP, the bHLH-ZIP domain in SREBP1 and SREBP2, the ApoB binding region, ER targeting region and LD targeting region in CIDEb, the LD targeting region in the CIDEc, the conserved catalytic site and processing site in S1P, and the transmembrane helix domain in S2P. Their mRNA expression could be observed in the heart, spleen, liver, kidney, brain, muscle, intestine and adipose, but varied with tissues. The changes of their mRNA expression in responses to high-fat (HFD) and bile acid (BA) diets were also investigated in the brain, heart, intestine, kidney and spleen tissues. In the brain, HFD significantly increased the mRNA expression of seven genes (scap, srebp1, srebp2, s1p, s2p, cideb and cidec), and the BA attenuated the increase of scap, srebp1, srebp2, s1p, s2p, cideb and cidec mRNA expression induced by HFD. In the heart, HFD significantly increased the mRNA abundances of six genes (srebp1, srebp2, scap, s2p, cideb and cidec), and BA attenuated the increase of their mRNA abundances induced by HFD. In the intestine, HFD increased the cideb, s1p and s2p mRNA abundances, and BA attenuated the HFD-induced increment of their mRNA abundances. In the kidney, HFD significantly increased the scap, cidec and s1p mRNA expression, and BA diet attenuated the increment of their mRNA expression. In the spleen, HFD treatment increased the scap, srebp2, s1p and s2p mRNA expression, and BA diet attenuated HFD-induced increment of their mRNA expression. Taken together, our study elucidated the characterization, expression profiles and transcriptional response of seven lipid metabolic genes, which would serve as the good basis for the further exploration into their function and regulatory mechanism in fish.
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Affiliation(s)
- Qing-Lin Li
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Hua Zheng
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhi Luo
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Li-Xiang Wu
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Peng-Cheng Xu
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Jia-Cheng Guo
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Yu-Feng Song
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiao-Ying Tan
- Laboratory of Molecular Nutrition, Fishery College, Huazhong Agricultural University, Wuhan 430070, China.
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33
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Avci D, Heidasch R, Costa M, Lüchtenborg C, Kale D, Brügger B, Lemberg MK. Intramembrane protease SPP defines a cholesterol-regulated abundance control of the mevalonate pathway enzyme squalene synthase. J Biol Chem 2024; 300:105644. [PMID: 38218226 PMCID: PMC10850959 DOI: 10.1016/j.jbc.2024.105644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 12/21/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024] Open
Abstract
Intramembrane proteolysis regulates important processes such as signaling and transcriptional and posttranslational abundance control of proteins with key functions in metabolic pathways. This includes transcriptional control of mevalonate pathway genes, thereby ensuring balanced biosynthesis of cholesterol and other isoprenoids. Our work shows that, at high cholesterol levels, signal peptide peptidase (SPP) cleaves squalene synthase (SQS), an enzyme that defines the branching point for allocation of isoprenoids to the sterol and nonsterol arms of the mevalonate pathway. This intramembrane cleavage releases SQS from the membrane and targets it for proteasomal degradation. Regulation of this mechanism is achieved by the E3 ubiquitin ligase TRC8 that, in addition to ubiquitinating SQS in response to cholesterol levels, acts as an allosteric activator of SPP-catalyzed intramembrane cleavage of SQS. Cellular cholesterol levels increase in the absence of SPP activity. We infer from these results that, SPP-TRC8 mediated abundance control of SQS acts as a regulation step within the mevalonate pathway.
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Affiliation(s)
- Dönem Avci
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany; Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany.
| | - Ronny Heidasch
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Martina Costa
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany; Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany
| | | | - Dipali Kale
- Biochemistry Center of Heidelberg University (BZH), Heidelberg, Germany
| | - Britta Brügger
- Biochemistry Center of Heidelberg University (BZH), Heidelberg, Germany
| | - Marius K Lemberg
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany; Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany.
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34
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Bai Y, Li T, Wang Q, You W, Yang H, Xu X, Li Z, Zhang Y, Yan C, Yang L, Qiu J, Liu Y, Chen S, Wang D, Huang B, Liu K, Song BL, Wang Z, Li K, Liu X, Wang G, Yang W, Chen J, Hao P, Zhang Z, Wang Z, Zhu ZJ, Xu C. Shaping immune landscape of colorectal cancer by cholesterol metabolites. EMBO Mol Med 2024; 16:334-360. [PMID: 38177537 PMCID: PMC10897227 DOI: 10.1038/s44321-023-00015-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 01/06/2024] Open
Abstract
Cancer immunotherapies have achieved unprecedented success in clinic, but they remain largely ineffective in some major types of cancer, such as colorectal cancer with microsatellite stability (MSS CRC). It is therefore important to study tumor microenvironment of resistant cancers for developing new intervention strategies. In this study, we identify a metabolic cue that determines the unique immune landscape of MSS CRC. Through secretion of distal cholesterol precursors, which directly activate RORγt, MSS CRC cells can polarize T cells toward Th17 cells that have well-characterized pro-tumor functions in colorectal cancer. Analysis of large human cancer cohorts revealed an asynchronous pattern of the cholesterol biosynthesis in MSS CRC, which is responsible for the abnormal accumulation of distal cholesterol precursors. Inhibiting the cholesterol biosynthesis enzyme Cyp51, by pharmacological or genetic interventions, reduced the levels of intratumoral distal cholesterol precursors and suppressed tumor progression through a Th17-modulation mechanism in preclinical MSS CRC models. Our study therefore reveals a novel mechanism of cancer-immune interaction and an intervention strategy for the difficult-to-treat MSS CRC.
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Affiliation(s)
- Yibing Bai
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Tongzhou Li
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Qinshu Wang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Weiqiang You
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Haochen Yang
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xintian Xu
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Shanghai, China
| | - Ziyi Li
- Beijing Advanced Innovation Center for Genomics, BIOPIC and School of Life Sciences, Peking University, Beijing, China
| | - Yu Zhang
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Chengsong Yan
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Lei Yang
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Jiaqian Qiu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yuanhua Liu
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Shanghai, China
| | - Shiyang Chen
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Dongfang Wang
- Beijing Advanced Innovation Center for Genomics, BIOPIC and School of Life Sciences, Peking University, Beijing, China
| | - Binlu Huang
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Kexin Liu
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Bao- Liang Song
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zhuozhong Wang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Kang Li
- Department of Epidemiology and Biostatistics, School of Public Health, Harbin Medical University, Harbin, China
| | - Xin Liu
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Guangchuan Wang
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Weiwei Yang
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Jianfeng Chen
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Pei Hao
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Shanghai, China
| | - Zemin Zhang
- Beijing Advanced Innovation Center for Genomics, BIOPIC and School of Life Sciences, Peking University, Beijing, China
| | - Zhigang Wang
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Zheng-Jiang Zhu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China.
| | - Chenqi Xu
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China.
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35
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Skeyni A, Pradignac A, Matz RL, Terrand J, Boucher P. Cholesterol trafficking, lysosomal function, and atherosclerosis. Am J Physiol Cell Physiol 2024; 326:C473-C486. [PMID: 38145298 DOI: 10.1152/ajpcell.00415.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/26/2023]
Abstract
Despite years of study and major research advances over the past 50 years, atherosclerotic diseases continue to rank as the leading global cause of death. Accumulation of cholesterol within the vascular wall remains the main problem and represents one of the early steps in the development of atherosclerotic lesions. There is a complex relationship between vesicular cholesterol transport and atherosclerosis, and abnormalities in cholesterol trafficking can contribute to the development and progression of the lesions. The dysregulation of vesicular cholesterol transport and lysosomal function fosters the buildup of cholesterol within various intracytoplasmic compartments, including lysosomes and lipid droplets. This, in turn, promotes the hallmark formation of foam cells, a defining feature of early atherosclerosis. Multiple cellular processes, encompassing endocytosis, exocytosis, intracellular trafficking, and autophagy, play crucial roles in influencing foam cell formation and atherosclerotic plaque stability. In this review, we highlight recent advances in the understanding of the intricate mechanisms of vesicular cholesterol transport and its relationship with atherosclerosis and discuss the importance of understanding these mechanisms in developing strategies to prevent or treat this prevalent cardiovascular disease.
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Affiliation(s)
- Alaa Skeyni
- UMR-S INSERM 1109, University of Strasbourg, Strasbourg, France
| | - Alain Pradignac
- UMR-S INSERM 1109, University of Strasbourg, Strasbourg, France
| | - Rachel L Matz
- UMR-S INSERM 1109, University of Strasbourg, Strasbourg, France
| | - Jérôme Terrand
- UMR-S INSERM 1109, University of Strasbourg, Strasbourg, France
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36
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Zhao Z, Liu X, Xiang Y, Hou Z, He K, Zhong G, Hu J, Cai D, Liu Y, Ren J, Gong J, Zhao L. Inhibiting cholesterol de novo synthesis promotes hepatocellular carcinoma progression by upregulating prostaglandin E synthase 2-mediated arachidonic acid metabolism under high fatty acid conditions. Cancer Sci 2024; 115:477-489. [PMID: 38081591 PMCID: PMC10859596 DOI: 10.1111/cas.16035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 11/08/2023] [Accepted: 11/15/2023] [Indexed: 02/13/2024] Open
Abstract
Inhibition of cholesterol de novo synthesis (DNS) by statins has controversial effects on the treatment of hepatocellular carcinoma (HCC). High fatty acid conditions have been reported to limit the effect of statins on metabolism diseases. Whether high fatty acid conditions interfere with the effect of statins on HCC remains unclear. Here, we reported that inhibiting cholesterol DNS with atorvastatin promoted the oncogenic capabilities of diethylnitrosamine (DEN) in mice fed high fatty acid diets (HFD). The combined analysis of metabolomics and transcriptomics revealed that arachidonic acid (AA) metabolism was the most significant changed pathway between mice with and without atorvastatin treatment. In vitro, in the presence of AA precursor linoleic acid (LA), atorvastatin promoted the proliferation and migration ability of HCC cell lines. However, in the absence of LA, these phenomena disappeared. TCGA and tissue microarray examination revealed that prostaglandin e synthase 2 (PTGES2), a key enzyme in AA metabolism, was associated with the poor outcome of HCC patients. Overexpression of PTGES2 promoted the proliferation and migration of HCC cell lines, and knockdown of PTGES2 inhibited the proliferation and migration of cells. Additionally, atorvastatin upregulated PTGES2 expression by enhancing Sterol-regulatory element binding protein 2 (SREBP2)-mediated transcription. Knockdown of PTGES2 reversed the proliferation and migration ability enhanced by atorvastatin. Overall, our study reveals that a high fatty acid background is one of the possible conditions limiting the application of statins in HCC, under which statins promote the progression of HCC by enhancing SREBP2-mediated PTGES2 transcription.
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Affiliation(s)
- Zhibo Zhao
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Xinyi Liu
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
- Department of General SurgeryThe People's Hospital of Jianyang CityJianyangChina
| | - Yue Xiang
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Zhengping Hou
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Kun He
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Guochao Zhong
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Jiejun Hu
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Dong Cai
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Yan Liu
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
- Chengdu University of Traditional Chinese Medicine Affiliated Fifth People‘s hospitalChengduChina
| | - Jihua Ren
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Jianping Gong
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Lei Zhao
- Department of Hepatobiliary Surgery, Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), the Second Affiliated HospitalChongqing Medical UniversityChongqingChina
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37
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Saito H, Nishimura M, Sato R, Yamauchi Y. Quantitative Determination of Cholesterol Hydroxylase Specificities by GC-MS/MS in Living Mammalian Cells. Bio Protoc 2024; 14:e4924. [PMID: 38268974 PMCID: PMC10804311 DOI: 10.21769/bioprotoc.4924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 12/07/2023] [Accepted: 12/13/2023] [Indexed: 01/26/2024] Open
Abstract
Cholesterol is oxygenated by a variety of cholesterol hydroxylases; oxysterols play diverse important roles in physiological and pathophysiological conditions by regulating several transcription factors and cell-surface receptors. Each oxysterol has distinct and overlapping functions. The expression of cholesterol hydroxylases is highly regulated, but their physiological and pathophysiological roles are not fully understood. Although the activity of cholesterol hydroxylases has been characterized biochemically using radiolabeled cholesterol as the substrate, their specificities remain to be comprehensively determined quantitatively. To better understand their roles, a highly sensitive method to measure the amount of various oxysterols synthesized by cholesterol hydroxylases in living mammalian cells is required. Our method described here, with gas chromatography coupled with tandem mass spectrometry (GC-MS/MS), can quantitatively determine a series of oxysterols endogenously synthesized by forced expression of one of the four major cholesterol hydroxylases-CH25H, CYP7A1, CYP27A1, and CYP46A1-or induction of CH25H expression by a physiological stimulus. This protocol can also simultaneously measure the amount of intermediate sterols, which serve as markers for cellular cholesterol synthesis activity. Key features • Allows measuring the amount of a variety of oxysterols synthesized endogenously by cholesterol hydroxylases using GC-MS/MS. • Comprehensive and quantitative analysis of cholesterol hydroxylase specificities in living mammalian cells. • Simultaneous quantification of intermediate sterols to assess cholesterol synthesis activity.
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Affiliation(s)
- Hodaka Saito
- Laboratory of Food Biochemistry, Department of
Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences,
The University of Tokyo, Tokyo, Japan
| | - Mizuki Nishimura
- Laboratory of Food Biochemistry, Department of
Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences,
The University of Tokyo, Tokyo, Japan
| | - Ryuichiro Sato
- Nutri-Life Science Laboratory, Department of Applied
Biological Chemistry, Graduate School of Agricultural and Life Sciences, The
University of Tokyo, Tokyo, Japan
- AMED-CREST, Japan Agency for Medical Research and
Development, Tokyo, Japan
| | - Yoshio Yamauchi
- Laboratory of Food Biochemistry, Department of
Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences,
The University of Tokyo, Tokyo, Japan
- Nutri-Life Science Laboratory, Department of Applied
Biological Chemistry, Graduate School of Agricultural and Life Sciences, The
University of Tokyo, Tokyo, Japan
- AMED-CREST, Japan Agency for Medical Research and
Development, Tokyo, Japan
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38
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Chandrasekaran P, Weiskirchen R. The Role of SCAP/SREBP as Central Regulators of Lipid Metabolism in Hepatic Steatosis. Int J Mol Sci 2024; 25:1109. [PMID: 38256181 PMCID: PMC10815951 DOI: 10.3390/ijms25021109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/09/2024] [Accepted: 01/14/2024] [Indexed: 01/24/2024] Open
Abstract
The prevalence of metabolic dysfunction-associated steatotic liver disease (MASLD) is rapidly increasing worldwide at an alarming pace, due to an increase in obesity, sedentary and unhealthy lifestyles, and unbalanced dietary habits. MASLD is a unique, multi-factorial condition with several phases of progression including steatosis, steatohepatitis, fibrosis, cirrhosis, and hepatocellular carcinoma. Sterol element binding protein 1c (SREBP1c) is the main transcription factor involved in regulating hepatic de novo lipogenesis. This transcription factor is synthesized as an inactive precursor, and its proteolytic maturation is initiated in the membrane of the endoplasmic reticulum upon stimulation by insulin. SREBP cleavage activating protein (SCAP) is required as a chaperon protein to escort SREBP from the endoplasmic reticulum and to facilitate the proteolytic release of the N-terminal domain of SREBP into the Golgi. SCAP inhibition prevents activation of SREBP and inhibits the expression of genes involved in triglyceride and fatty acid synthesis, resulting in the inhibition of de novo lipogenesis. In line, previous studies have shown that SCAP inhibition can resolve hepatic steatosis in animal models and intensive research is going on to understand the effects of SCAP in the pathogenesis of human disease. This review focuses on the versatile roles of SCAP/SREBP regulation in de novo lipogenesis and the structure and molecular features of SCAP/SREBP in the progression of hepatic steatosis. In addition, recent studies that attempt to target the SCAP/SREBP axis as a therapeutic option to interfere with MASLD are discussed.
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Affiliation(s)
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), Rheinisch-Westfälische Technische Hochschule (RWTH) University Hospital Aachen, D-52074 Aachen, Germany
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Chen J, Chan TTH, Zhou J. Lipid metabolism in the immune niche of tumor-prone liver microenvironment. J Leukoc Biol 2024; 115:68-84. [PMID: 37474318 DOI: 10.1093/jleuko/qiad081] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 06/23/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023] Open
Abstract
The liver is a common primary site not only for tumorigenesis, but also for cancer metastasis. Advanced cancer patients with liver metastases also show reduced response rates and survival benefits when treated with immune checkpoint inhibitors. Accumulating evidence has highlighted the importance of the liver immune microenvironment in determining tumorigenesis, metastasis-organotropism, and immunotherapy resistance. Various immune cells such as T cells, natural killer and natural killer T cells, macrophages and dendritic cells, and stromal cells including liver sinusoidal endothelial cells, Kupffer cells, hepatic stellate cells, and hepatocytes are implicated in contributing to the immune niche of tumor-prone liver microenvironment. In parallel, as the major organ for lipid metabolism, the increased abundance of lipids and their metabolites is linked to processes crucial for nonalcoholic fatty liver disease and related liver cancer development. Furthermore, the proliferation, differentiation, and functions of hepatic immune and stromal cells are also reported to be regulated by lipid metabolism. Therefore, targeting lipid metabolism may hold great potential to reprogram the immunosuppressive liver microenvironment and synergistically enhance the immunotherapy efficacy in the circumstance of liver metastasis. In this review, we describe how the hepatic microenvironment adapts to the lipid metabolic alterations in pathologic conditions like nonalcoholic fatty liver disease. We also illustrate how these immunometabolic alterations promote the development of liver cancers and immunotherapy resistance. Finally, we discuss the current therapeutic options and hypothetic combination immunotherapies for the treatment of advanced liver cancers.
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Affiliation(s)
- Jintian Chen
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong 999077, SAR, P.R. China
| | - Thomas T H Chan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong 999077, SAR, P.R. China
| | - Jingying Zhou
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong 999077, SAR, P.R. China
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40
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Yalcinkaya A, Öztaş YE, Sabuncuoğlu S. Sterols in Inflammatory Diseases: Implications and Clinical Utility. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1440:261-275. [PMID: 38036884 DOI: 10.1007/978-3-031-43883-7_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
The characteristic steroid skeleton, with its 4-ringed 17-carbon structure, is one of the most recognizable organic compounds in biochemistry. In the presence of a hydroxyl ion bound to the third carbon, this structure is defined as a "sterol" (chemical formula: C17H28O). The hydroxyl group provides a hydrophilic site for the otherwise hydrophobic molecule, yielding an amphipathic lipid, which is a vital property for cellular function. It is crucial to remark that the term "steroid" describes a larger group of compounds that often retain the hydroxyl group but are primarily characterized by methyl groups, double bonds in the rings, and an aliphatic side-chain extending from the 17th carbon. In addition to serving various structural roles in the cellular membrane, sterols and steroids contribute to cellular and systemic functions as messengers, hormones, and regulators of several critical metabolic pathways.Sterol nomenclature is often confusing, partly due to structural complexity and partly due to the sheer number of different compounds that fall under the definition. Fortunately, the foremost sterols of interest in biochemistry are much fewer, and therefore, these lipids have been defined and studied vigorously. With the renaissance of lipid research during the 1990s and 2000s, many different metabolites of sterols, and more specifically phytosterols, were found to be associated with various diseases and conditions, including cardiovascular disease, hypercholesterolemia, cancer, obesity, inflammation, diabetes, and inborn errors of metabolism; thus, it is evident that the ever-evolving research in this field has been, and will continue to be, exceedingly productive.With respect to inflammation and inflammatory diseases, plant-based sterols (i.e., phytosterols) have gained considerable fame due to their anti-inflammatory and cholesterol-lowering effects demonstrated by experimental and clinical research. Besides, the exceptional pharmacological benefits of these sterols, which operate as antioxidant, antidiabetic, and anti-atherosclerotic agents, have been the subject of various investigations. While the underlying mechanisms necessitate further research, the possible function of phytosterols in improving health outcomes is an important topic to explore.In this regard, the current review aims to offer comprehensive information on the therapeutic potential of plant-based sterols in the context of human health, with a focus on preclinical effects, bioavailability, and clinical use.
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Affiliation(s)
- Ahmet Yalcinkaya
- Department of Medical Biochemistry, Faculty of Medicine, Hacettepe University, Ankara, Turkey
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Yeşim Er Öztaş
- Department of Medical Biochemistry, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Suna Sabuncuoğlu
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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41
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Urano Y, Noguchi N. Enzymatically Formed Oxysterols and Cell Death. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1440:193-211. [PMID: 38036881 DOI: 10.1007/978-3-031-43883-7_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
The side-chain hydroxylation of cholesterol by specific enzymes produces 24(S)-hydroxycholesterol, 25-hydroxycholesterol, 27-hydroxycholesterol, and other products. These enzymatically formed side-chain oxysterols act as intermediates in the biosynthesis of bile acids and serve as signaling molecules that regulate cholesterol homeostasis. Besides these intracellular functions, an imbalance in oxysterol homeostasis is implicated in pathophysiology. Furthermore, growing evidence reveals that oxysterols affect cell proliferation and cause cell death. This chapter provides an overview of the pathophysiological role of side-chain oxysterols in developing human diseases. We also summarize our understanding of the molecular mechanisms underlying the induction of various forms of cell death by side-chain oxysterols.
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Affiliation(s)
- Yasuomi Urano
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto, Japan.
| | - Noriko Noguchi
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto, Japan
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42
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Xia Q, Lu F, Chen Y, Li J, Huang Z, Fang K, Hu M, Guo Y, Dong H, Xu L, Gong J. 6-Gingerol regulates triglyceride and cholesterol biosynthesis to improve hepatic steatosis in MAFLD by activating the AMPK-SREBPs signaling pathway. Biomed Pharmacother 2024; 170:116060. [PMID: 38147735 DOI: 10.1016/j.biopha.2023.116060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/13/2023] [Accepted: 12/21/2023] [Indexed: 12/28/2023] Open
Abstract
Excessive synthesis of triglycerides and cholesterol accelerates the progression of hepatic steatosis in metabolic-associated fatty liver disease (MAFLD). However, the precise mechanism by which 6-gingerol mitigates hepatic steatosis in MAFLD model mice has yet to be fully understood. The present study observed that 6-gingerol administration exhibited significant protective effects against obesity, insulin resistance, and hepatic steatosis in mice subjected to a high-fat diet (HFD), and mitigated lipid accumulation in HepG2 cells treated with palmitate (PA). Following the hepatic lipidomic analysis, we confirmed that the AMPK-SREBPs signaling pathway as the underlying molecular mechanism by which 6-gingerol inhibited triglyceride and cholesterol biosynthesis, both in vivo and in vitro, through Western blot and immunofluorescence assay. Additionally, the application of an AMPK agonist/inhibitor further validated that 6-gingerol promoted AMPK activation by increasing the phosphorylation level of AMPK in vitro. Notably, the inhibitory effect of 6-gingerol on cholesterol biosynthesis, rather than triglyceride biosynthesis, was significantly diminished after silencing SREBP2 using a lentiviral plasmid shRNA in HepG2 cells. Our study demonstrates that 6-gingerol mitigates hepatic triglyceride and cholesterol biosynthesis to alleviate hepatic steatosis by activating the AMPK-SREBPs signaling pathway, indicating that 6-gingerol may be a potential candidate in the therapy of MAFLD.
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Affiliation(s)
- Qingsong Xia
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China; Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Fuer Lu
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yu Chen
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Jingbin Li
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Zhaoyi Huang
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Ke Fang
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Meilin Hu
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yujin Guo
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Hui Dong
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Lijun Xu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Jing Gong
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China.
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Muta Y, Linares JF, Martinez-Ordoñez A, Duran A, Cid-Diaz T, Kinoshita H, Zhang X, Han Q, Nakanishi Y, Nakanishi N, Cordes T, Arora GK, Ruiz-Martinez M, Reina-Campos M, Kasashima H, Yashiro M, Maeda K, Albaladejo-Gonzalez A, Torres-Moreno D, García-Solano J, Conesa-Zamora P, Inghirami G, Metallo CM, Osborne TF, Diaz-Meco MT, Moscat J. Enhanced SREBP2-driven cholesterol biosynthesis by PKCλ/ι deficiency in intestinal epithelial cells promotes aggressive serrated tumorigenesis. Nat Commun 2023; 14:8075. [PMID: 38092754 PMCID: PMC10719313 DOI: 10.1038/s41467-023-43690-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/16/2023] [Indexed: 12/17/2023] Open
Abstract
The metabolic and signaling pathways regulating aggressive mesenchymal colorectal cancer (CRC) initiation and progression through the serrated route are largely unknown. Although relatively well characterized as BRAF mutant cancers, their poor response to current targeted therapy, difficult preneoplastic detection, and challenging endoscopic resection make the identification of their metabolic requirements a priority. Here, we demonstrate that the phosphorylation of SCAP by the atypical PKC (aPKC), PKCλ/ι promotes its degradation and inhibits the processing and activation of SREBP2, the master regulator of cholesterol biosynthesis. We show that the upregulation of SREBP2 and cholesterol by reduced aPKC levels is essential for controlling metaplasia and generating the most aggressive cell subpopulation in serrated tumors in mice and humans. Since these alterations are also detected prior to neoplastic transformation, together with the sensitivity of these tumors to cholesterol metabolism inhibitors, our data indicate that targeting cholesterol biosynthesis is a potential mechanism for serrated chemoprevention.
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Affiliation(s)
- Yu Muta
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Juan F Linares
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Anxo Martinez-Ordoñez
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Angeles Duran
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Tania Cid-Diaz
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Hiroto Kinoshita
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Xiao Zhang
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Qixiu Han
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Yuki Nakanishi
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naoko Nakanishi
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Thekla Cordes
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, 38106, Germany
| | - Gurpreet K Arora
- Cell and Molecular Biology of Cancer Program, Sanford Burnham Prebys, La Jolla, CA, 92037, USA
| | - Marc Ruiz-Martinez
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Miguel Reina-Campos
- School of Biological Sciences, Department of Molecular Biology, University of California San Diego, San Diego, CA, USA
| | - Hiroaki Kasashima
- Department of Gastroenterological Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka city, 545-8585, Japan
| | - Masakazu Yashiro
- Department of Gastroenterological Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka city, 545-8585, Japan
| | - Kiyoshi Maeda
- Department of Gastroenterological Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka city, 545-8585, Japan
| | - Ana Albaladejo-Gonzalez
- Department of Histology and Pathology, Faculty of Life Sciences, Universidad Católica de Murcia (UCAM), 30107, Murcia, Spain
- Department of Pathology, Santa Lucía General University Hospital (HGUSL), Calle Mezquita sn, 30202, Cartagena, Spain
| | - Daniel Torres-Moreno
- Department of Histology and Pathology, Faculty of Life Sciences, Universidad Católica de Murcia (UCAM), 30107, Murcia, Spain
- Department of Clinical Analysis, Santa Lucía General University Hospital (HGUSL), Calle Mezquita sn, 30202, Cartagena, Spain
| | - José García-Solano
- Department of Histology and Pathology, Faculty of Life Sciences, Universidad Católica de Murcia (UCAM), 30107, Murcia, Spain
- Department of Pathology, Santa Lucía General University Hospital (HGUSL), Calle Mezquita sn, 30202, Cartagena, Spain
| | - Pablo Conesa-Zamora
- Department of Histology and Pathology, Faculty of Life Sciences, Universidad Católica de Murcia (UCAM), 30107, Murcia, Spain
- Department of Clinical Analysis, Santa Lucía General University Hospital (HGUSL), Calle Mezquita sn, 30202, Cartagena, Spain
| | - Giorgio Inghirami
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Christian M Metallo
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Timothy F Osborne
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St, Petersburg, FL, USA
| | - Maria T Diaz-Meco
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA.
| | - Jorge Moscat
- Department of Pathology and Laboratory Medicine and Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA.
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44
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Hu ZL, Yuan YQ, Tong Z, Liao MQ, Yuan SL, Jian Y, Yang JL, Liu WF. Reexamining the Causes and Effects of Cholesterol Deposition in the Brains of Patients with Alzheimer's Disease. Mol Neurobiol 2023; 60:6852-6868. [PMID: 37507575 DOI: 10.1007/s12035-023-03529-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Alzheimer's disease (AD) is a degenerative disease of the central nervous system. Numerous studies have shown that imbalances in cholesterol homeostasis in the brains of AD patients precede the onset of clinical symptoms. In addition, cholesterol deposition has been observed in the brains of AD patients even though peripheral cholesterol does not enter the brain through the blood‒brain barrier (BBB). Studies have demonstrated that cholesterol metabolism in the brain is associated with many pathological conditions, such as amyloid beta (Aβ) production, Tau protein phosphorylation, oxidative stress, and inflammation. In 2022, some scholars put forward a new hypothesis of AD: the disease involves lipid invasion and its exacerbation of the abnormal metabolism of cholesterol in the brain. In this review, by discussing the latest research progress, the causes and effects of cholesterol retention in the brains of AD patients are analyzed and discussed. Additionally, the possible mechanism through which AD may be improved by targeting cholesterol is described. Finally, we propose that improving the impairments in cholesterol removal observed in the brains of AD patients, instead of further reducing the already impaired cholesterol synthesis in the brain, may be the key to preventing cholesterol deposition and improving the corresponding pathological symptoms.
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Affiliation(s)
- Ze-Lin Hu
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha, 410012, China
| | - Yang-Qi Yuan
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha, 410012, China
| | - Zhen Tong
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha, 410012, China
| | - Mei-Qing Liao
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha, 410012, China
| | - Shun-Ling Yuan
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha, 410012, China
| | - Ye Jian
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha, 410012, China
| | - Jia-Lun Yang
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha, 410012, China
| | - Wen-Feng Liu
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha, 410012, China.
- Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, Hunan Normal University, Changsha, 410081, China.
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45
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Leist SR, Mock JR. The Importance of "Negative" Results: Lipid Lessons in Coronavirus Biology. Am J Respir Cell Mol Biol 2023; 69:610-611. [PMID: 37672661 DOI: 10.1165/rcmb.2023-0301ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 09/06/2023] [Indexed: 09/08/2023] Open
Affiliation(s)
- Sarah R Leist
- Department of Epidemiology University of North Carolina Chapel Hill, North Carolina
| | - Jason R Mock
- Division of Pulmonary Diseases and Critical Care Medicine University of North Carolina Chapel Hill, North Carolina
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46
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Goul C, Peruzzo R, Zoncu R. The molecular basis of nutrient sensing and signalling by mTORC1 in metabolism regulation and disease. Nat Rev Mol Cell Biol 2023; 24:857-875. [PMID: 37612414 DOI: 10.1038/s41580-023-00641-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2023] [Indexed: 08/25/2023]
Abstract
The Ser/Thr kinase mechanistic target of rapamycin (mTOR) is a central regulator of cellular metabolism. As part of mTOR complex 1 (mTORC1), mTOR integrates signals such as the levels of nutrients, growth factors, energy sources and oxygen, and triggers responses that either boost anabolism or suppress catabolism. mTORC1 signalling has wide-ranging consequences for the growth and homeostasis of key tissues and organs, and its dysregulated activity promotes cancer, type 2 diabetes, neurodegeneration and other age-related disorders. How mTORC1 integrates numerous upstream cues and translates them into specific downstream responses is an outstanding question with major implications for our understanding of physiology and disease mechanisms. In this Review, we discuss recent structural and functional insights into the molecular architecture of mTORC1 and its lysosomal partners, which have greatly increased our mechanistic understanding of nutrient-dependent mTORC1 regulation. We also discuss the emerging involvement of aberrant nutrient-mTORC1 signalling in multiple diseases.
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Affiliation(s)
- Claire Goul
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Roberta Peruzzo
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Roberto Zoncu
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA.
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47
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Lu J, Chen S, Bai X, Liao M, Qiu Y, Zheng LL, Yu H. Targeting cholesterol metabolism in Cancer: From molecular mechanisms to therapeutic implications. Biochem Pharmacol 2023; 218:115907. [PMID: 37931664 DOI: 10.1016/j.bcp.2023.115907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/01/2023] [Accepted: 11/02/2023] [Indexed: 11/08/2023]
Abstract
Cholesterol is an essential component of cell membranes and helps to maintain their structure and function. Abnormal cholesterol metabolism has been linked to the development and progression of tumors. Changes in cholesterol metabolism triggered by internal or external stimuli can promote tumor growth. During metastasis, tumor cells require large amounts of cholesterol to support their growth and colonization of new organs. Recent research has shown that cholesterol metabolism is reprogrammed during tumor development, and this can also affect the anti-tumor activity of immune cells in the surrounding environment. However, identifying the specific targets in cholesterol metabolism that regulate cancer progression and the tumor microenvironment is still a challenge. Additionally, exploring the potential of combining statin drugs with other therapies for different types of cancer could be a worthwhile avenue for future drug development. In this review, we focus on the molecular mechanisms of cholesterol and its derivatives in cell metabolism and the tumor microenvironment, and discuss specific targets and relevant therapeutic agents that inhibit aspects of cholesterol homeostasis.
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Affiliation(s)
- Jia Lu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Siwei Chen
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xuejiao Bai
- Department of Anesthesiology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Minru Liao
- Department of Anesthesiology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yuling Qiu
- School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
| | - Ling-Li Zheng
- Department of Pharmacy, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China.
| | - Haiyang Yu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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48
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Schiffmann A, Ahlswede L, Gimpl G. Reversible translocation of acyl-CoA:cholesterol acyltransferase (ACAT) between the endoplasmic reticulum and vesicular structures. Front Mol Biosci 2023; 10:1258799. [PMID: 38028547 PMCID: PMC10667705 DOI: 10.3389/fmolb.2023.1258799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
The enzyme acyl-CoA:cholesterol acyltransferase (ACAT) is normally localized in the endoplasmic reticulum (ER) where it can esterify cholesterol for storage in lipid droplets and/or the formation of lipoproteins. Here, we report that ACAT can translocate from the ER into vesicular structures in response to different ACAT inhibitors. The translocation was fast (within minutes), reversible and occurred in different cell types. Interestingly, oleic acid was able to fasten the re-translocation from vesicles back into the reticular ER network. The process of ACAT translocation could also be induced by cyclodextrins, cholesterol, lanosterol (but not 4-cholestene-3 one), 25-hydroxycholesterol, and by certain stress stimuli such as hyperosmolarity (sucrose treatment), temperature change, or high-density cultivation. In vitro esterification showed that ACAT remains fully active after it has been translocated to vesicles in response to hyperosmotic sucrose treatment of the cells. The translocation process was not accompanied by changes in the electrophoretic mobility of ACAT, even after chemical crosslinking. Interestingly, the protein synthesis inhibitor cycloheximide showed a stimulating effect on ACAT activity and prevented the translocation of ACAT from the ER into vesicles.
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Affiliation(s)
| | | | - Gerald Gimpl
- Department of Chemistry and Biochemistry, Biocenter II, Johannes Gutenberg University Mainz, Mainz, Germany
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49
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Fenton NM, Brown AJ. A tale of 2 gasses, 1 regulator, and cholesterol homeostasis. PLoS Biol 2023; 21:e3002401. [PMID: 37992072 PMCID: PMC10664885 DOI: 10.1371/journal.pbio.3002401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023] Open
Abstract
There is a burgeoning appreciation for the wide-ranging effects of carbon dioxide on transcriptional regulation and metabolism. Here, Bolshette and colleagues provide the first link between carbon dioxide and the master transcriptional regulator of cholesterol homeostasis.
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Affiliation(s)
- Nicole M. Fenton
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, Australia
| | - Andrew J. Brown
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, Australia
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50
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Koh DHZ, Naito T, Na M, Yeap YJ, Rozario P, Zhong FL, Lim KL, Saheki Y. Visualization of accessible cholesterol using a GRAM domain-based biosensor. Nat Commun 2023; 14:6773. [PMID: 37880244 PMCID: PMC10600248 DOI: 10.1038/s41467-023-42498-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 10/12/2023] [Indexed: 10/27/2023] Open
Abstract
Cholesterol is important for membrane integrity and cell signaling, and dysregulation of the distribution of cellular cholesterol is associated with numerous diseases, including neurodegenerative disorders. While regulated transport of a specific pool of cholesterol, known as "accessible cholesterol", contributes to the maintenance of cellular cholesterol distribution and homeostasis, tools to monitor accessible cholesterol in live cells remain limited. Here, we engineer a highly sensitive accessible cholesterol biosensor by taking advantage of the cholesterol-sensing element (the GRAM domain) of an evolutionarily conserved lipid transfer protein, GRAMD1b. Using this cholesterol biosensor, which we call GRAM-W, we successfully visualize in real time the distribution of accessible cholesterol in many different cell types, including human keratinocytes and iPSC-derived neurons, and show differential dependencies on cholesterol biosynthesis and uptake for maintaining levels of accessible cholesterol. Furthermore, we combine GRAM-W with a dimerization-dependent fluorescent protein (ddFP) and establish a strategy for the ultrasensitive detection of accessible plasma membrane cholesterol. These tools will allow us to obtain important insights into the molecular mechanisms by which the distribution of cellular cholesterol is regulated.
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Affiliation(s)
- Dylan Hong Zheng Koh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Tomoki Naito
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Minyoung Na
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Yee Jie Yeap
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Pritisha Rozario
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Franklin L Zhong
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
- Skin Research Institute of Singapore (SRIS), Singapore, 308232, Singapore
| | - Kah-Leong Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
- National Neuroscience Institute, Singapore, 308433, Singapore
| | - Yasunori Saheki
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore.
- Institute of Resource Development and Analysis, Kumamoto University, Kumamoto, 860-0811, Japan.
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