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Hering M, Madi A, Sandhoff R, Ma S, Wu J, Mieg A, Richter K, Mohr K, Knabe N, Stichling D, Poschet G, Bestvater F, Frank L, Utikal J, Umansky V, Cui G. Sphinganine recruits TLR4 adaptors in macrophages and promotes inflammation in murine models of sepsis and melanoma. Nat Commun 2024; 15:6067. [PMID: 39025856 PMCID: PMC11258287 DOI: 10.1038/s41467-024-50341-w] [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: 06/24/2023] [Accepted: 07/08/2024] [Indexed: 07/20/2024] Open
Abstract
After recognizing its ligand lipopolysaccharide, Toll-like receptor 4 (TLR4) recruits adaptor proteins to the cell membrane, thereby initiating downstream signaling and triggering inflammation. Whether this recruitment of adaptor proteins is dependent solely on protein-protein interactions is unknown. Here, we report that the sphingolipid sphinganine physically interacts with the adaptor proteins MyD88 and TIRAP and promotes MyD88 recruitment in macrophages. Myeloid cell-specific deficiency in serine palmitoyltransferase long chain base subunit 2, which encodes the key enzyme catalyzing sphingolipid biosynthesis, decreases the membrane recruitment of MyD88 and inhibits inflammatory responses in in vitro bone marrow-derived macrophage and in vivo sepsis models. In a melanoma mouse model, serine palmitoyltransferase long chain base subunit 2 deficiency decreases anti-tumor myeloid cell responses and increases tumor growth. Therefore, sphinganine biosynthesis is required for the initiation of TLR4 signal transduction and serves as a checkpoint for macrophage pattern recognition in sepsis and melanoma mouse models.
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Affiliation(s)
- Marvin Hering
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany.
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim (UMM), Ruprecht-Karls University of Heidelberg, Mannheim, Germany.
- DKFZ Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany.
| | - Alaa Madi
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Roger Sandhoff
- Lipid Pathobiochemistry Group (A411), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sicong Ma
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, 230601, China
| | - Jingxia Wu
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, 230601, China
| | - Alessa Mieg
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Karsten Richter
- Electron Microscopy Core Facility (W230), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Kerstin Mohr
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nora Knabe
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Helmholtz Institute for Translational Oncology, Mainz (HI-TRON Mainz)-A Helmholtz Institute of the DKFZ, Mainz, Germany
| | - Diana Stichling
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Gernot Poschet
- Metabolomics Core Technology Platform, Centre for Organismal Studies (COS), Heidelberg University, Heidelberg, Germany
| | - Felix Bestvater
- Light Microscopy Core Facility (W210), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Larissa Frank
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Division of Cellular Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jochen Utikal
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim (UMM), Ruprecht-Karls University of Heidelberg, Mannheim, Germany
- DKFZ Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany
| | - Viktor Umansky
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim (UMM), Ruprecht-Karls University of Heidelberg, Mannheim, Germany
- DKFZ Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany
- Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Guoliang Cui
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany.
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, 230601, China.
- Helmholtz Institute for Translational Oncology, Mainz (HI-TRON Mainz)-A Helmholtz Institute of the DKFZ, Mainz, Germany.
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
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2
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Montardi C, Gaudemer A, Zuber M, Vuillemet F, Alexandra J, Lidove O, Mauhin W. Aseptic meningitis and Fabry disease. Ann Clin Transl Neurol 2024; 11:1430-1441. [PMID: 38717582 PMCID: PMC11187954 DOI: 10.1002/acn3.52043] [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: 11/22/2023] [Revised: 02/16/2024] [Accepted: 02/28/2024] [Indexed: 06/20/2024] Open
Abstract
OBJECTIVE Fabry disease is caused by enzymatic defects in alpha-galactosidase A that leads to the accumulation of glycosphingolipids throughout the body, resulting in a multisystemic disorder. The most common neurological manifestations are neuropathic pain, autonomic nervous system dysfunction and strokes, but some rarer neurological manifestations exist. Among these, aseptic meningitis is a possible complication. Our objectives were to measure the prevalence of this complication in a cohort of patients with Fabry disease, and to describe its clinical features. METHODS We conducted a retrospective review of Fabry disease patients followed at our tertiary referral center between 1995 and September 2023 with at least one episode of meningitis, and performed a systematic review to identify similar published cases. RESULTS Four patients out of 107 (3.7%) had at least one episode of aseptic meningitis. Our systematic review identified 25 other observations. The median age of these 29 patients was 29.0 years, the median cerebrospinal fluid leukocyte count was 24 cells/mm3 with a predominance of lymphocytes in 64.7% of cases. In 82.8% of the patients, the diagnosis of Fabry disease was unknown before the meningitis. Large artery stenosis was present in 17.2% of patients and 57.1% of patients had a recent stroke concomitant with the meningitis. Several differential diagnoses were evoked, such as multiple sclerosis or central nervous system vasculitis. INTERPRETATION Our study suggests that Fabry disease should be considered as a cause of aseptic meningitis. The pathophysiological mechanisms underlying meningeal inflammation remain largely unknown but may reflect the dysregulation of pro-inflammatory signaling pathways.
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Affiliation(s)
- Camille Montardi
- Internal Medicine DepartmentReference Centre for Lysosomal Diseases, Groupe Hospitalier Diaconesses Croix Saint‐SimonParisFrance
| | - Augustin Gaudemer
- Radiology DepartmentBichat University Hospital, Assistance Publique Hôpitaux de ParisParisFrance
- IAME UMR‐1137, INSERM, Université Paris CitéParisFrance
| | - Mathieu Zuber
- Neurology DepartmentParis Saint‐Joseph HospitalParisFrance
- UMR‐S U1237, GIP Cycéron, INSERM, Université Paris CitéParisFrance
| | - Francis Vuillemet
- Neurology DepartmentLouis Pasteur Civil Hospital of ColmarColmarFrance
| | - Jean‐François Alexandra
- Internal Medicine DepartmentBichat University Hospital, Assistance Publique Hôpitaux de ParisParisFrance
| | - Olivier Lidove
- Internal Medicine DepartmentReference Centre for Lysosomal Diseases, Groupe Hospitalier Diaconesses Croix Saint‐SimonParisFrance
| | - Wladimir Mauhin
- Internal Medicine DepartmentReference Centre for Lysosomal Diseases, Groupe Hospitalier Diaconesses Croix Saint‐SimonParisFrance
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3
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Maurotti S, Geirola N, Frosina M, Mirarchi A, Scionti F, Mare R, Montalcini T, Pujia A, Tirinato L. Exploring the impact of lipid droplets on the evolution and progress of hepatocarcinoma. Front Cell Dev Biol 2024; 12:1404006. [PMID: 38818407 PMCID: PMC11137176 DOI: 10.3389/fcell.2024.1404006] [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: 03/20/2024] [Accepted: 04/29/2024] [Indexed: 06/01/2024] Open
Abstract
Over the past 10 years, the biological role of lipid droplets (LDs) has gained significant attention in the context of both physiological and pathological conditions. Considerable progress has been made in elucidating key aspects of these organelles, yet much remains to be accomplished to fully comprehend the myriad functions they serve in the progression of hepatic tumors. Our current perception is that LDs are complex and active structures managed by a distinct set of cellular processes. This understanding represents a significant paradigm shift from earlier perspectives. In this review, we aim to recapitulate the function of LDs within the liver, highlighting their pivotal role in the pathogenesis of metabolic dysfunction-associated steatotic liver disease (MASLD) (Hsu and Loomba, 2024) and their contribution to the progression towards more advanced pathological stages up to hepatocellular carcinoma (HC) (Farese and Walther, 2009). We are aware of the molecular complexity and changes occurring in the neoplastic evolution of the liver. Our attempt, however, is to summarize the most important and recent roles of LDs across both healthy and all pathological liver states, up to hepatocarcinoma. For more detailed insights, we direct readers to some of the many excellent reviews already available in the literature (Gluchowski et al., 2017; Hu et al., 2020; Seebacher et al., 2020; Paul et al., 2022).
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Affiliation(s)
- Samantha Maurotti
- Department of Clinical and Experimental Medicine, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Nadia Geirola
- Department of Clinical and Experimental Medicine, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Miriam Frosina
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Angela Mirarchi
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Francesca Scionti
- Department of Clinical and Experimental Medicine, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Rosario Mare
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Tiziana Montalcini
- Department of Clinical and Experimental Medicine, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Arturo Pujia
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Luca Tirinato
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
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4
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Köberlin MS, Fan Y, Liu C, Chung M, Pinto AFM, Jackson PK, Saghatelian A, Meyer T. A fast-acting lipid checkpoint in G1 prevents mitotic defects. Nat Commun 2024; 15:2441. [PMID: 38499565 PMCID: PMC10948896 DOI: 10.1038/s41467-024-46696-9] [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: 07/24/2023] [Accepted: 03/06/2024] [Indexed: 03/20/2024] Open
Abstract
Lipid synthesis increases during the cell cycle to ensure sufficient membrane mass, but how insufficient synthesis restricts cell-cycle entry is not understood. Here, we identify a lipid checkpoint in G1 phase of the mammalian cell cycle by using live single-cell imaging, lipidome, and transcriptome analysis of a non-transformed cell. We show that synthesis of fatty acids in G1 not only increases lipid mass but extensively shifts the lipid composition to unsaturated phospholipids and neutral lipids. Strikingly, acute lowering of lipid synthesis rapidly activates the PERK/ATF4 endoplasmic reticulum (ER) stress pathway that blocks cell-cycle entry by increasing p21 levels, decreasing Cyclin D levels, and suppressing Retinoblastoma protein phosphorylation. Together, our study identifies a rapid anticipatory ER lipid checkpoint in G1 that prevents cells from starting the cell cycle as long as lipid synthesis is low, thereby preventing mitotic defects, which are triggered by low lipid synthesis much later in mitosis.
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Affiliation(s)
- Marielle S Köberlin
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Baxter Laboratory, Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
| | - Yilin Fan
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Chad Liu
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Chan Zuckerberg Biohub, San Francisco, CA, 94111, USA
| | - Mingyu Chung
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Antonio F M Pinto
- Clayton Foundation Laboratories for Peptide Biology and Mass Spectrometry Core, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Peter K Jackson
- Baxter Laboratory, Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Alan Saghatelian
- Clayton Foundation Laboratories for Peptide Biology and Mass Spectrometry Core, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Tobias Meyer
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Department of Cell and Developmental Biology, Weill Cornell Medicine, New York, NY, 10065, USA.
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5
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Paudel BB, Tan SF, Fox TE, Ung J, Golla U, Shaw JJP, Dunton W, Lee I, Fares WA, Patel S, Sharma A, Viny AD, Barth BM, Tallman MS, Cabot M, Garrett-Bakelman FE, Levine RL, Kester M, Feith DJ, Claxton D, Janes KA, Loughran TP. Acute myeloid leukemia stratifies as 2 clinically relevant sphingolipidomic subtypes. Blood Adv 2024; 8:1137-1142. [PMID: 38170742 PMCID: PMC10909712 DOI: 10.1182/bloodadvances.2023010535] [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: 04/21/2023] [Revised: 10/06/2023] [Accepted: 10/27/2023] [Indexed: 01/05/2024] Open
Affiliation(s)
- B. Bishal Paudel
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA
| | - Su-Fern Tan
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
| | - Todd E. Fox
- Department of Pharmacology, University of Virginia, Charlottesville, VA
| | - Johnson Ung
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- Department of Microbiology/Immunology/Cancer Biology, University of Virginia, Charlottesville, VA
| | - Upendarrao Golla
- Department of Medicine, Division of Hematology and Oncology, Pennsylvania State University College of Medicine, Hershey, PA
| | - Jeremy J. P. Shaw
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
| | - Wendy Dunton
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
| | - Irene Lee
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- Department of Internal Medicine, Baylor College of Medicine, Houston, TX
| | - Wisam A. Fares
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA
| | - Satyam Patel
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA
| | - Arati Sharma
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA
- Penn State Cancer Institute, Hershey, PA
| | - Aaron D. Viny
- Department of Medicine, Division of Hematology & Oncology, and of Genetics & Development, Herbert Irving Comprehensive Cancer Center, New York, NY
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY
| | - Brian M. Barth
- Department of Chemistry, Biology, and Health Sciences, South Dakota School of Mines and Technology, Rapid City, SD
- Department of Natural Sciences, University of Alaska Southeast, Juneau, AK
| | - Martin S. Tallman
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Myles Cabot
- Department of Biochemistry & Molecular Biology, East Carolina University, Greenville, NC
- East Carolina Diabetes and Obesity Institute, Brody School of Medicine, East Carolina University, Greenville, NC
| | - Francine E. Garrett-Bakelman
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- Department of Biochemistry & Molecular Genetics, University of Virginia, Charlottesville, VA
- University of Virginia Cancer Center, Charlottesville, VA
| | - Ross L. Levine
- Human Oncology and Pathogenesis Program and Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Mark Kester
- Department of Pharmacology, University of Virginia, Charlottesville, VA
| | - David J. Feith
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- University of Virginia Cancer Center, Charlottesville, VA
| | - David Claxton
- Department of Medicine, Division of Hematology and Oncology, Pennsylvania State University College of Medicine, Hershey, PA
- Penn State Cancer Institute, Hershey, PA
| | - Kevin A. Janes
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA
- Department of Biochemistry & Molecular Genetics, University of Virginia, Charlottesville, VA
- University of Virginia Cancer Center, Charlottesville, VA
| | - Thomas P. Loughran
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- University of Virginia Cancer Center, Charlottesville, VA
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6
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York AG, Skadow MH, Oh J, Qu R, Zhou QD, Hsieh WY, Mowel WK, Brewer JR, Kaffe E, Williams KJ, Kluger Y, Smale ST, Crawford JM, Bensinger SJ, Flavell RA. IL-10 constrains sphingolipid metabolism to limit inflammation. Nature 2024; 627:628-635. [PMID: 38383790 PMCID: PMC10954550 DOI: 10.1038/s41586-024-07098-5] [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: 01/17/2023] [Accepted: 01/22/2024] [Indexed: 02/23/2024]
Abstract
Interleukin-10 (IL-10) is a key anti-inflammatory cytokine that can limit immune cell activation and cytokine production in innate immune cell types1. Loss of IL-10 signalling results in life-threatening inflammatory bowel disease in humans and mice-however, the exact mechanism by which IL-10 signalling subdues inflammation remains unclear2-5. Here we find that increased saturated very long chain (VLC) ceramides are critical for the heightened inflammatory gene expression that is a hallmark of IL-10 deficiency. Accordingly, genetic deletion of ceramide synthase 2 (encoded by Cers2), the enzyme responsible for VLC ceramide production, limited the exacerbated inflammatory gene expression programme associated with IL-10 deficiency both in vitro and in vivo. The accumulation of saturated VLC ceramides was regulated by a decrease in metabolic flux through the de novo mono-unsaturated fatty acid synthesis pathway. Restoring mono-unsaturated fatty acid availability to cells deficient in IL-10 signalling limited saturated VLC ceramide production and the associated inflammation. Mechanistically, we find that persistent inflammation mediated by VLC ceramides is largely dependent on sustained activity of REL, an immuno-modulatory transcription factor. Together, these data indicate that an IL-10-driven fatty acid desaturation programme rewires VLC ceramide accumulation and aberrant activation of REL. These studies support the idea that fatty acid homeostasis in innate immune cells serves as a key regulatory node to control pathologic inflammation and suggests that 'metabolic correction' of VLC homeostasis could be an important strategy to normalize dysregulated inflammation caused by the absence of IL-10.
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Affiliation(s)
- Autumn G York
- Department of Immunobiology, Yale University, New Haven, CT, USA.
- Howard Hughes Medical Institute, Yale University, New Haven, CT, USA.
- Department of Immunology, School of Medicine, University of Washington, Seattle, WA, USA.
| | - Mathias H Skadow
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Joonseok Oh
- Department of Chemistry, Yale University, New Haven, CT, USA
- Institute of Biomolecular Design and Discovery, Yale University, West Haven, CT, USA
| | - Rihao Qu
- Department of Immunobiology, Yale University, New Haven, CT, USA
- Computational Biology and Bioinformatics Program, Yale University, New Haven, CT, USA
| | - Quan D Zhou
- Department of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, USA
| | - Wei-Yuan Hsieh
- Department of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, USA
| | - Walter K Mowel
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - J Richard Brewer
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Eleanna Kaffe
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Kevin J Williams
- Department of Biological Chemistry, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
- UCLA Lipidomics Laboratory, Los Angeles, CA, USA
| | - Yuval Kluger
- Computational Biology and Bioinformatics Program, Yale University, New Haven, CT, USA
| | - Stephen T Smale
- Howard Hughes Medical Institute, Yale University, New Haven, CT, USA
- Department of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, USA
| | - Jason M Crawford
- Department of Chemistry, Yale University, New Haven, CT, USA
- Institute of Biomolecular Design and Discovery, Yale University, West Haven, CT, USA
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, USA
| | - Steven J Bensinger
- Department of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, USA.
- UCLA Lipidomics Laboratory, Los Angeles, CA, USA.
| | - Richard A Flavell
- Department of Immunobiology, Yale University, New Haven, CT, USA.
- Howard Hughes Medical Institute, Yale University, New Haven, CT, USA.
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7
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Mah CY, Nguyen ADT, Niijima T, Helm M, Dehairs J, Ryan FJ, Ryan N, Quek LE, Hoy AJ, Don AS, Mills IG, Swinnen JV, Lynn DJ, Nassar ZD, Butler LM. Peroxisomal β-oxidation enzyme, DECR2, regulates lipid metabolism and promotes treatment resistance in advanced prostate cancer. Br J Cancer 2024; 130:741-754. [PMID: 38216720 PMCID: PMC10912652 DOI: 10.1038/s41416-023-02557-8] [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: 12/12/2022] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND Peroxisomes are central metabolic organelles that have key roles in fatty acid homoeostasis. As prostate cancer (PCa) is particularly reliant on fatty acid metabolism, we explored the contribution of peroxisomal β-oxidation (perFAO) to PCa viability and therapy response. METHODS Bioinformatic analysis was performed on clinical transcriptomic datasets to identify the perFAO enzyme, 2,4-dienoyl CoA reductase 2 (DECR2) as a target gene of interest. Impact of DECR2 and perFAO inhibition via thioridazine was examined in vitro, in vivo, and in clinical prostate tumours cultured ex vivo. Transcriptomic and lipidomic profiling was used to determine the functional consequences of DECR2 inhibition in PCa. RESULTS DECR2 is upregulated in clinical PCa, most notably in metastatic castrate-resistant PCa (CRPC). Depletion of DECR2 significantly suppressed proliferation, migration, and 3D growth of a range of CRPC and therapy-resistant PCa cell lines, and inhibited LNCaP tumour growth and proliferation in vivo. DECR2 influences cell cycle progression and lipid metabolism to support tumour cell proliferation. Further, co-targeting of perFAO and standard-of-care androgen receptor inhibition enhanced suppression of PCa cell proliferation. CONCLUSION Our findings support a focus on perFAO, specifically DECR2, as a promising therapeutic target for CRPC and as a novel strategy to overcome lethal treatment resistance.
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Affiliation(s)
- Chui Yan Mah
- South Australian Immunogenomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia
- Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - An Dieu Trang Nguyen
- South Australian Immunogenomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia
- Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Takuto Niijima
- South Australian Immunogenomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia
| | - Madison Helm
- South Australian Immunogenomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia
- Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Jonas Dehairs
- Department of Oncology, Laboratory of Lipid Metabolism and Cancer, KU Leuven, Leuven, Belgium
| | - Feargal J Ryan
- Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
| | - Natalie Ryan
- South Australian Immunogenomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia
- Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Lake-Ee Quek
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Andrew J Hoy
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Anthony S Don
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Ian G Mills
- Patrick G Johnston Centre for Cancer Research, Queen's University, Belfast, UK
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Johannes V Swinnen
- Department of Oncology, Laboratory of Lipid Metabolism and Cancer, KU Leuven, Leuven, Belgium
| | - David J Lynn
- Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
| | - Zeyad D Nassar
- South Australian Immunogenomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia.
- Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.
| | - Lisa M Butler
- South Australian Immunogenomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia.
- Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.
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8
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Cooper O, Hallett P, Isacson O. Upstream lipid and metabolic systems are potential causes of Alzheimer's disease, Parkinson's disease and dementias. FEBS J 2024; 291:632-645. [PMID: 36165619 PMCID: PMC10040476 DOI: 10.1111/febs.16638] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/02/2022] [Accepted: 09/26/2022] [Indexed: 11/28/2022]
Abstract
Brain health requires circuits, cells and molecular pathways to adapt when challenged and to promptly reset once the challenge has resolved. Neurodegeneration occurs when adaptability becomes confined, causing challenges to overwhelm neural circuitry. Studies of rare and common neurodegenerative diseases suggest that the accumulation of lipids can compromise circuit adaptability. Using microglia as an example, we review data that suggest increased lipid concentrations cause dysfunctional inflammatory responses to immune challenges, leading to Alzheimer's disease, Parkinson's disease and dementia. We highlight current approaches to treat lipid metabolic and clearance pathways and identify knowledge gaps towards restoring adaptive homeostasis in individuals who are at-risk of losing cognition.
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Affiliation(s)
- Oliver Cooper
- Neuroregeneration Research Institute, McLean Hospital/Harvard Medical School, 115 Mill Street, Belmont, MA 02478
| | - Penny Hallett
- Neuroregeneration Research Institute, McLean Hospital/Harvard Medical School, 115 Mill Street, Belmont, MA 02478
| | - Ole Isacson
- Neuroregeneration Research Institute, McLean Hospital/Harvard Medical School, 115 Mill Street, Belmont, MA 02478
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9
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Kwak YB, Yoo HH, Yoon J. The impact of the administration of red ginseng ( Panax ginseng) on lipid metabolism and free fatty acid profiles in healthy horses using a molecular networking approach. Front Vet Sci 2024; 11:1285000. [PMID: 38332753 PMCID: PMC10851614 DOI: 10.3389/fvets.2024.1285000] [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: 09/01/2023] [Accepted: 01/08/2024] [Indexed: 02/10/2024] Open
Abstract
This study investigated the potential benefits of the administration of red ginseng (RG) on lipid metabolism and the profiles of individual free fatty acids (FFAs) in healthy horses. Eight healthy horses, raised under similar conditions, were randomly divided into two groups, each comprising four horses. The experimental group received powdered RG (600 mg/kg/day) mixed with a carrier, and the control group received only the carrier. The parameters associated with lipid metabolism and probable adverse effects were evaluated in both groups after 3 weeks. The computational molecular networking (MN) approach was applied to analyze the FFA profiles. The results indicated that RG administration significantly reduced blood triglyceride levels in the experimental group. Analysis of the FFAs using MN revealed significant decreases in specific types of FFAs (C12:0, dodecanoic acid; C14:0, myristric acid; C18:1, oleic acid; C18:2, linoleic acid). RG consumption did not produce significant adverse effects on the renal, hepatic, and immune functions. Thus, RG was found to effectively modulate lipid metabolism and the levels of individual FFAs. The application of the MN for the analysis of FFAs represents a novel approach and can be considered for future research.
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Affiliation(s)
- Young Beom Kwak
- Racing Laboratory, Korea Racing Authority, Jeju, Republic of Korea
| | - Hye Hyun Yoo
- Institute of Pharmaceutical Science and Technology and College of Pharmacy, Hanyang University, Ansan, Republic of Korea
| | - Jungho Yoon
- Equine Referral Clinic, Jeju Stud Farm, Korea Racing Authority, Jeju, Republic of Korea
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10
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Li X, Zhang Y, Zhang T, Zhao L, Lin CG, Hu H, Zheng H. Tafazzin mediates tamoxifen resistance by regulating cellular phospholipid composition in ER-positive breast cancer. Cancer Gene Ther 2024; 31:69-81. [PMID: 37935981 DOI: 10.1038/s41417-023-00683-2] [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] [Received: 04/21/2023] [Revised: 09/29/2023] [Accepted: 10/25/2023] [Indexed: 11/09/2023]
Abstract
Tamoxifen is the frontline therapeutic agent for the estrogen receptor-positive (ER + ) subtype of breast cancer patients, which accounts for 70-80% of total breast cancer incidents. However, clinical resistance to tamoxifen has become increasingly common, highlighting the need to identify the underlying cellular mechanisms. In our study, we employed a genome-scale CRISPR-Cas9 loss-of-function screen and validation experiments to discover that Tafazzin (TAZ), a mitochondrial transacylase, is crucial for maintaining the cellular sensitivity of ER+ breast cancer cells to tamoxifen and other chemotherapies. Mechanistically, we found that cardiolipin, whose synthesis and maturation rely on TAZ, is required to maintain cellular sensitivity to tamoxifen. Loss of metabolic enzymatic activity of TAZ causes ERα downregulation and therapy resistance. Interestingly, we observed that TAZ deficiency also led to the upregulation of lysophosphatidylcholine (LPC), which in turn suppressed ERα expression and nuclear localization, thereby contributing to tamoxifen resistance. LPC is further metabolized to lysophosphatidic acid (LPA), a bioactive molecule that supports cell survival. Thus, our findings suggest that the depletion of TAZ promotes tamoxifen resistance through an LPC-LPA phospholipid synthesis axis, and targeting this lipid metabolic pathway could restore cell susceptibility to tamoxifen treatment.
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Affiliation(s)
- Xuan Li
- State Key Laboratory of Molecular Oncology and Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Yuan Zhang
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
| | - Tengjiang Zhang
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
| | - Luyang Zhao
- State Key Laboratory of Molecular Oncology and Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
| | - Christopher G Lin
- State Key Laboratory of Molecular Oncology and Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
| | - Haitian Hu
- State Key Laboratory of Molecular Oncology and Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
| | - Hanqiu Zheng
- State Key Laboratory of Molecular Oncology and Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China.
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11
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Gawden-Bone CM, Lehner PJ, Volkmar N. As a matter of fat: Emerging roles of lipid-sensitive E3 ubiquitin ligases. Bioessays 2023; 45:e2300139. [PMID: 37890275 DOI: 10.1002/bies.202300139] [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: 07/28/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023]
Abstract
The dynamic structure and composition of lipid membranes need to be tightly regulated to control the vast array of cellular processes from cell and organelle morphology to protein-protein interactions and signal transduction pathways. To maintain membrane integrity, sense-and-response systems monitor and adjust membrane lipid composition to the ever-changing cellular environment, but only a relatively small number of control systems have been described. Here, we explore the emerging role of the ubiquitin-proteasome system in monitoring and maintaining membrane lipid composition. We focus on the ER-resident RNF145 E3 ubiquitin ligase, its role in regulating adiponectin receptor 2 (ADIPOR2), its lipid hydrolase substrate, and the broader implications for understanding the homeostatic processes that fine-tune cellular membrane composition.
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Affiliation(s)
- Christian M Gawden-Bone
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, UK
| | - Paul J Lehner
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, UK
| | - Norbert Volkmar
- Institute for Molecular Systems Biology (IMSB), ETH Zürich, Zürich, Switzerland
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12
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Xu X, Guo W, Zhao L, Sun Y, Xu D, Yang J, Liu Y, Xie S, Wang Y, Xu Y. Exploring the in vitro anti-inflammatory activity of gross saponins of Tribulus terrestris L. fruit by using liquid chromatography-mass spectrometry-based cell metabolomics approach. J Sep Sci 2023; 46:e2300531. [PMID: 37933967 DOI: 10.1002/jssc.202300531] [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] [Received: 07/26/2023] [Revised: 10/01/2023] [Accepted: 10/01/2023] [Indexed: 11/08/2023]
Abstract
Our previous studies confirmed the efficacy of gross saponins of Tribulus terrestris L. fruit in treating cerebral ischemia. This study aimed to investigate the related mechanisms in vitro. The lipopolysaccharide-induced BV2 cells model was constructed and treated with gross saponins at different concentrations to explore its anti-inflammatory activity. The cell metabolite changes were tracked by liquid chromatography-mass spectrometry (LC-MS)-based metabolomics, and the metabolic biomarkers and related metabolic pathways were analyzed. Molecular biochemistry analysis was further used to verify the relevant inflammatory pathways. The results showed that the saponins reduced nitric oxide release and the secretion of tumor necrosis factor-alpha, interleukin-1β, and interleukin-6 from lipopolysaccharide-induced BV2 cells. Metabolic perturbations occurred in lipopolysaccharide-treated BV2 cells, which could be reversed by drug treatment via mainly regulating glycerophospholipid metabolism, tryptophan metabolism, purine metabolism pathways, etc. The western blot analysis demonstrated that saponin could suppress the activation of the inflammatory-related signaling pathway. The present study explored the in vitro anti-inflammatory mechanism of gross saponins of Tribulus terrestris L. fruit using an LC-MS-based cell metabolomics approach, which confirms the great potential of LC-MS for drug efficacy evaluation and can be applied in other herbal medicine-related analyses.
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Affiliation(s)
- Xiaohang Xu
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Medicinal Materials, Jilin Academy of Chinese Medicine Sciences, Changchun, China
| | - Wenjun Guo
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, Changchun, China
| | - Liang Zhao
- Key Laboratory of Medicinal Materials, Jilin Academy of Chinese Medicine Sciences, Changchun, China
| | - Yuanhe Sun
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, Changchun, China
| | - Dandan Xu
- Key Laboratory of Medicinal Materials, Jilin Academy of Chinese Medicine Sciences, Changchun, China
| | - Jingxuan Yang
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, Changchun, China
| | - Yue Liu
- Key Laboratory of Medicinal Materials, Jilin Academy of Chinese Medicine Sciences, Changchun, China
| | - Shengxu Xie
- Key Laboratory of Medicinal Materials, Jilin Academy of Chinese Medicine Sciences, Changchun, China
| | - Yang Wang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Yajuan Xu
- Key Laboratory of Medicinal Materials, Jilin Academy of Chinese Medicine Sciences, Changchun, China
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13
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Shao F, Hu X, Li J, Bai B, Tian L. Lipidomics analysis of impaired glucose tolerance and type 2 diabetes mellitus in overweight or obese elderly adults. Endocr Connect 2023; 12:e230212. [PMID: 37878774 PMCID: PMC10692693 DOI: 10.1530/ec-23-0212] [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: 06/04/2023] [Accepted: 10/25/2023] [Indexed: 10/27/2023]
Abstract
Aims Aging, obesity, and type 2 diabetes mellitus (T2DM) form a metabolic disease continuum that has a continuously increasing prevalence. Lipidomics explains the complex interactions between lipid metabolism and metabolic diseases. We aimed to systematically investigate the plasma lipidome changes induced by newly diagnosed impaired glucose tolerance (IGT) and T2DM in overweight/obese elderly individuals and to identify potential biomarkers to differentiate between the IGT, T2DM, and control groups. Methods Plasma samples from 148 overweight/obese elderly individuals, including 52 patients with IGT, 47 patients with T2DM, and 49 euglycemic controls, were analyzed using a high-coverage nontargeted absolute quantitative lipidomics approach. Results We quantified 1840 lipids from thirty-eight classes and seven lipid categories. Among overweight/obese elderly individuals, the lipidomic profiles of IGT and T2DM patients were significantly different from those of controls, while they were similar in the IGT and T2DM groups. The concentrations of diglycerides, triglycerides, phosphatidylcholines, and ceramides were obviously altered in the IGT and T2DM groups. Particularly, IGT and T2DM induced the accumulation of triglycerides with longer carbon atom numbers (C44-50) and saturated or lower double bond numbers (n (C=C) = 0-2). Furthermore, a total of 17 potential lipidic biomarkers were identified to successfully differentiate between the IGT, T2DM, and control groups. Conclusions In overweight/obese elderly patients, IGT and T2DM induced apparent lipidome-wide changes. This study's results may contribute to explaining the complex dysfunctional lipid metabolism in aging, obesity, and diabetes.
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Affiliation(s)
- Feifei Shao
- Department of Endocrinology, Gansu Provincial Hospital, Lanzhou, Gansu, China
- Clinical Research Center for Metabolic Disease, Gansu Province, Lanzhou, Gansu, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Xinxin Hu
- Clinical Research Center for Metabolic Disease, Gansu Province, Lanzhou, Gansu, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Jiayu Li
- Clinical Research Center for Metabolic Disease, Gansu Province, Lanzhou, Gansu, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Bona Bai
- Clinical Research Center for Metabolic Disease, Gansu Province, Lanzhou, Gansu, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Limin Tian
- Department of Endocrinology, Gansu Provincial Hospital, Lanzhou, Gansu, China
- Clinical Research Center for Metabolic Disease, Gansu Province, Lanzhou, Gansu, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
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14
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Melero A, Jiménez-Rojo N. Cracking the membrane lipid code. Curr Opin Cell Biol 2023; 83:102203. [PMID: 37437490 DOI: 10.1016/j.ceb.2023.102203] [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: 04/18/2023] [Revised: 06/01/2023] [Accepted: 06/16/2023] [Indexed: 07/14/2023]
Abstract
Why has nature acquired such a huge lipid repertoire? Although it would be theoretically possible to make a lipid bilayer fulfilling barrier functions with only one glycerophospholipid, there are diverse and numerous different lipid species. Lipids are heterogeneously distributed across the evolutionary tree with lipidomes evolving in parallel to organismal complexity. Moreover, lipids are different between organs and tissues and even within the same cell, different organelles have characteristic lipid signatures. At the molecular level, membranes are asymmetric and laterally heterogeneous. This lipid asymmetry at different scales indicates that these molecules may play very specific molecular functions in biology. Some of these roles have been recently uncovered: lipids have been shown to be essential in processes such as hypoxia and ferroptosis or in protein sorting and trafficking but many of them remain still unknown. In this review we will discuss the importance of understanding lipid diversity in biology across scales and we will share a toolbox with some of the emerging technologies that are helping us to uncover new lipid molecular functions in cell biology and, step by step, crack the membrane lipid code.
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Affiliation(s)
- Alejandro Melero
- Department of Fundamental Microbiology, Faculty of Biology and Medicine, University of Lausanne, 1015 Lausanne, Switzerland
| | - Noemi Jiménez-Rojo
- Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), 48940, Leioa, Spain; Instituto Biofisika (UPV/EHU, CSIC), 48940, Leioa, Spain; Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain.
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15
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Agrawal RR, Larrea D, Xu Y, Shi L, Zirpoli H, Cummins LG, Emmanuele V, Song D, Yun TD, Macaluso FP, Min W, Kernie SG, Deckelbaum RJ, Area-Gomez E. Alzheimer's-Associated Upregulation of Mitochondria-Associated ER Membranes After Traumatic Brain Injury. Cell Mol Neurobiol 2023; 43:2219-2241. [PMID: 36571634 PMCID: PMC10287820 DOI: 10.1007/s10571-022-01299-0] [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: 11/28/2021] [Accepted: 10/04/2022] [Indexed: 12/27/2022]
Abstract
Traumatic brain injury (TBI) can lead to neurodegenerative diseases such as Alzheimer's disease (AD) through mechanisms that remain incompletely characterized. Similar to AD, TBI models present with cellular metabolic alterations and modulated cleavage of amyloid precursor protein (APP). Specifically, AD and TBI tissues display increases in amyloid-β as well as its precursor, the APP C-terminal fragment of 99 a.a. (C99). Our recent data in cell models of AD indicate that C99, due to its affinity for cholesterol, induces the formation of transient lipid raft domains in the ER known as mitochondria-associated endoplasmic reticulum (ER) membranes ("MAM" domains). The formation of these domains recruits and activates specific lipid metabolic enzymes that regulate cellular cholesterol trafficking and sphingolipid turnover. Increased C99 levels in AD cell models promote MAM formation and significantly modulate cellular lipid homeostasis. Here, these phenotypes were recapitulated in the controlled cortical impact (CCI) model of TBI in adult mice. Specifically, the injured cortex and hippocampus displayed significant increases in C99 and MAM activity, as measured by phospholipid synthesis, sphingomyelinase activity and cholesterol turnover. In addition, our cell type-specific lipidomics analyses revealed significant changes in microglial lipid composition that are consistent with the observed alterations in MAM-resident enzymes. Altogether, we propose that alterations in the regulation of MAM and relevant lipid metabolic pathways could contribute to the epidemiological connection between TBI and AD.
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Affiliation(s)
- Rishi R Agrawal
- Institute of Human Nutrition, Columbia University Irving Medical Center, 630 W. 168th St., Presbyterian Hospital 15E-1512, New York, NY, 10032, USA.
- Denali Therapeutics Inc., 161 Oyster Point Blvd., South San Francisco, CA, 94080, USA.
| | - Delfina Larrea
- Department of Neurology, Neurological Institute, Columbia University Irving Medical Center, 710 W. 168th St., New York, NY, 10032, USA
| | - Yimeng Xu
- Biomarkers Core Laboratory, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W. 168th St., Presbyterian Hospital 10-105, New York, NY, 10032, USA
| | - Lingyan Shi
- Department of Chemistry, Columbia University, 3000 Broadway, Havemeyer Hall, New York, NY, 10027, USA
- Shu Chien-Gene Lay Department of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Hylde Zirpoli
- Institute of Human Nutrition, Columbia University Irving Medical Center, 630 W. 168th St., Presbyterian Hospital 15E-1512, New York, NY, 10032, USA
| | - Leslie G Cummins
- Analytical Imaging Facility, Albert Einstein College of Medicine, 1300 Morris Park Ave., Bronx, NY, 10461, USA
| | - Valentina Emmanuele
- Department of Neurology, Neurological Institute, Columbia University Irving Medical Center, 710 W. 168th St., New York, NY, 10032, USA
| | - Donghui Song
- Department of Chemistry, Columbia University, 3000 Broadway, Havemeyer Hall, New York, NY, 10027, USA
| | - Taekyung D Yun
- Department of Neurology, Neurological Institute, Columbia University Irving Medical Center, 710 W. 168th St., New York, NY, 10032, USA
| | - Frank P Macaluso
- Analytical Imaging Facility, Albert Einstein College of Medicine, 1300 Morris Park Ave., Bronx, NY, 10461, USA
| | - Wei Min
- Biomarkers Core Laboratory, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W. 168th St., Presbyterian Hospital 10-105, New York, NY, 10032, USA
| | - Steven G Kernie
- Department of Neurology, Neurological Institute, Columbia University Irving Medical Center, 710 W. 168th St., New York, NY, 10032, USA
- Department of Pediatrics, Columbia University Irving Medical Center, 622 W. 168th St., Presbyterian Hospital 17, New York, NY, 10032, USA
| | - Richard J Deckelbaum
- Institute of Human Nutrition, Columbia University Irving Medical Center, 630 W. 168th St., Presbyterian Hospital 15E-1512, New York, NY, 10032, USA
- Department of Pediatrics, Columbia University Irving Medical Center, 622 W. 168th St., Presbyterian Hospital 17, New York, NY, 10032, USA
| | - Estela Area-Gomez
- Institute of Human Nutrition, Columbia University Irving Medical Center, 630 W. 168th St., Presbyterian Hospital 15E-1512, New York, NY, 10032, USA.
- Department of Neurology, Neurological Institute, Columbia University Irving Medical Center, 710 W. 168th St., New York, NY, 10032, USA.
- Centro de Investigaciones Biológicas Margarita Salas - CSIC, C. Ramiro de Maeztu, 9, 28040, Madrid, Spain.
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16
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Jiang W, Jiang Y, Zhang X, Mu H, Song Y, Zhao H. Metabolomic analysis reveals the influence of HMBOX1 on RAW264.7 cells proliferation based on UPLC-MS/MS. BMC Genomics 2023; 24:272. [PMID: 37208615 DOI: 10.1186/s12864-023-09361-x] [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: 12/25/2022] [Accepted: 05/06/2023] [Indexed: 05/21/2023] Open
Abstract
Macrophages are important effector cells in tumor progression and immune regulation. Previously, we demonstrated that the transcription suppressor homeobox containing 1(HMBOX1) exhibits immunosuppressive activity in LPS-induced acute liver injury by impeding macrophage infiltration and activation. We also observed a lower proliferation in HMBOX1-overexpressed RAW264.7 cells. However, the specific mechanism was unclear. Here, a work was performed to characterize HMBOX1 function related to cell proliferation from a metabolomics standpoint by comparing the metabolic profiles of HMBOX1-overexpressed RAW264.7 cells to those of the controls. Firstly, we assessed HMBOX1 anti-proliferation activity in RAW264.7 cells with CCK8 assay and clone formation. Then, we performed metabolomic analyses by ultra-liquid chromatography coupled with mass spectrometry to explore the potential mechanisms. Our results indicated that HMBOX1 inhibited the macrophage growth curve and clone formation ability. Metabolomic analyses showed significant changes in HMBOX1-overexpressed RAW264.7 metabolites. A total of 1312 metabolites were detected, and 185 differential metabolites were identified based on the criterion of OPLS-DA VIP > 1 and p value < 0.05. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that the elevated HMBOX1 in RAW264.7 inhibited the pathways of amino acid and nucleotide metabolism. Glutamine concentrations decreased significantly in HMBOX1-overexpressed macrophages, and glutamine-related transporter SLC1A5 was also downregulated. Furthermore, SLC1A5 overexpression reversed HMBOX1 inhibition of macrophage proliferation. This study demonstrated the potential mechanism of the HMBOX1/SLC1A5 pathway in cell proliferation by regulating glutamine transportation. The results may help provide a new direction for therapeutic interventions in macrophage-related inflammatory diseases.
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Affiliation(s)
- Wen Jiang
- Central Research Laboratory, the Second Hospital of Shandong University, Jinan, 250033, China
| | - Yu Jiang
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Xinghai Zhang
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Hongli Mu
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Yuanming Song
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Hengli Zhao
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China.
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17
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Sun C, Wang A, Zhou Y, Chen P, Wang X, Huang J, Gao J, Wang X, Shu L, Lu J, Dai W, Bu Z, Ji J, He J. Spatially resolved multi-omics highlights cell-specific metabolic remodeling and interactions in gastric cancer. Nat Commun 2023; 14:2692. [PMID: 37164975 PMCID: PMC10172194 DOI: 10.1038/s41467-023-38360-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 04/27/2023] [Indexed: 05/12/2023] Open
Abstract
Mapping tumor metabolic remodeling and their spatial crosstalk with surrounding non-tumor cells can fundamentally improve our understanding of tumor biology, facilitates the designing of advanced therapeutic strategies. Here, we present an integration of mass spectrometry imaging-based spatial metabolomics and lipidomics with microarray-based spatial transcriptomics to hierarchically visualize the intratumor metabolic heterogeneity and cell metabolic interactions in same gastric cancer sample. Tumor-associated metabolic reprogramming is imaged at metabolic-transcriptional levels, and maker metabolites, lipids, genes are connected in metabolic pathways and colocalized in the heterogeneous cancer tissues. Integrated data from spatial multi-omics approaches coherently identify cell types and distributions within the complex tumor microenvironment, and an immune cell-dominated "tumor-normal interface" region where tumor cells contact adjacent tissues are characterized with distinct transcriptional signatures and significant immunometabolic alterations. Our approach for mapping tissue molecular architecture provides highly integrated picture of intratumor heterogeneity, and transform the understanding of cancer metabolism at systemic level.
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Affiliation(s)
- Chenglong Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Anqiang Wang
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Yanhe Zhou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Panpan Chen
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Xiangyi Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jianpeng Huang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jiamin Gao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Xiao Wang
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Liebo Shu
- Shanghai Luming Biological Technology co.Ltd, Shanghai, 201102, China
| | - Jiawei Lu
- Shanghai Luming Biological Technology co.Ltd, Shanghai, 201102, China
| | - Wentao Dai
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies) & Shanghai Engineering Research Center of Pharmaceutical Translation, Fudan University, Shanghai, 200080, China.
- Shanghai Key Laboratory of Gastric Neoplasms, Department of General Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Zhaode Bu
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, 100142, China.
| | - Jiafu Ji
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, 100142, China.
| | - Jiuming He
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
- NMPA Key Laboratory of safety research and evaluation of Innovative Drug, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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18
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York AG, Skadow MH, Qu R, Oh J, Mowel WK, Brewer JR, Kaffe E, Williams KJ, Kluger Y, Crawford JM, Smale ST, Bensinger SJ, Flavell RA. IL-10 constrains sphingolipid metabolism via fatty acid desaturation to limit inflammation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.07.539780. [PMID: 37214856 PMCID: PMC10197576 DOI: 10.1101/2023.05.07.539780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Unchecked chronic inflammation is the underlying cause of many diseases, ranging from inflammatory bowel disease to obesity and neurodegeneration. Given the deleterious nature of unregulated inflammation, it is not surprising that cells have acquired a diverse arsenal of tactics to limit inflammation. IL-10 is a key anti-inflammatory cytokine that can limit immune cell activation and cytokine production in innate immune cell types; however, the exact mechanism by which IL-10 signaling subdues inflammation remains unclear. Here, we find that IL-10 signaling constrains sphingolipid metabolism. Specifically, we find increased saturated very long chain (VLC) ceramides are critical for the heightened inflammatory gene expression that is a hallmark of IL-10-deficient macrophages. Genetic deletion of CerS2, the enzyme responsible for VLC ceramide production, limited exacerbated inflammatory gene expression associated with IL-10 deficiency both in vitro and in vivo , indicating that "metabolic correction" is able to reduce inflammation in the absence of IL-10. Surprisingly, accumulation of saturated VLC ceramides was regulated by flux through the de novo mono-unsaturated fatty acid (MUFA) synthesis pathway, where addition of exogenous MUFAs could limit both saturated VLC ceramide production and inflammatory gene expression in the absence of IL-10 signaling. Together, these studies mechanistically define how IL-10 signaling manipulates fatty acid metabolism as part of its molecular anti-inflammatory strategy and could lead to novel and inexpensive approaches to regulate aberrant inflammation.
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19
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Paudel BB, Tan SF, Fox TE, Ung J, Shaw J, Dunton W, Lee I, Sharma A, Viny AD, Barth BM, Tallman MS, Cabot M, Garrett-Bakelman FE, Levine RL, Kester M, Claxton D, Feith DJ, Janes KA, Loughran TP. Acute myeloid leukemia stratifies as two clinically relevant sphingolipidomic subtypes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.13.536805. [PMID: 37131653 PMCID: PMC10153188 DOI: 10.1101/2023.04.13.536805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Acute myeloid leukemia (AML) is an aggressive disease with complex and heterogeneous biology. Although several genomic classifications have been proposed, there is a growing interest in going beyond genomics to stratify AML. In this study, we profile the sphingolipid family of bioactive molecules in 213 primary AML samples and 30 common human AML cell lines. Using an integrative approach, we identify two distinct sphingolipid subtypes in AML characterized by a reciprocal abundance of hexosylceramide (Hex) and sphingomyelin (SM) species. The two Hex-SM clusters organize diverse samples more robustly than known AML driver mutations and are coupled to latent transcriptional states. Using transcriptomic data, we develop a machine-learning classifier to infer the Hex-SM status of AML cases in TCGA and BeatAML clinical repositories. The analyses show that the sphingolipid subtype with deficient Hex and abundant SM is enriched for leukemic stemness transcriptional programs and comprises an unappreciated high-risk subgroup with poor clinical outcomes. Our sphingolipid-focused examination of AML identifies patients least likely to benefit from standard of care and raises the possibility that sphingolipidomic interventions could switch the subtype of AML patients who otherwise lack targetable alternatives.
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Affiliation(s)
- B. Bishal Paudel
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA
| | - Su-Fern Tan
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
| | - Todd E. Fox
- Department of Pharmacology, University of Virginia, Charlottesville, VA
| | - Johnson Ung
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, VA
| | - Jeremy Shaw
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
| | - Wendy Dunton
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
| | - Irene Lee
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
| | - Arati Sharma
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA
- Penn State Cancer Institute, Hershey, PA
| | - Aaron D. Viny
- Departments of Medicine, Division of Hematology & Oncology, and of Genetics & Development, Columbia Stem Cell Initiative, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - Brian M. Barth
- Department of Chemistry, Biology, and Health Sciences, South Dakota School of Mines and Technology, Rapid City, SD
| | - Martin S. Tallman
- Northwestern University Feinberg School of Medicine Robert H. Lurie Comprehensive Cancer Center Chicago, IL
| | - Myles Cabot
- Department of Biochemistry & Molecular Biology, Brody School of Medicine, and the East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
| | - Francine E. Garrett-Bakelman
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA
| | - Ross L. Levine
- Human Oncology and Pathogenesis Program and Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Mark Kester
- Department of Pharmacology, University of Virginia, Charlottesville, VA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA
| | - David Claxton
- Penn State Cancer Institute, Hershey, PA
- Department of Medicine, Division of Hematology and Oncology, Pennsylvania State University College of Medicine, Hershey, PA
| | - David J. Feith
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA
| | - Kevin A. Janes
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA
| | - Thomas P. Loughran
- Department of Medicine, Division of Hematology & Oncology, University of Virginia, Charlottesville, VA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA
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20
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Zhou Q, Li B, Li J. DLL4-Notch signalling in acute-on-chronic liver failure: State of the art and perspectives. Life Sci 2023; 317:121438. [PMID: 36709913 DOI: 10.1016/j.lfs.2023.121438] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/20/2023] [Accepted: 01/21/2023] [Indexed: 01/28/2023]
Abstract
Acute-on-chronic liver failure (ACLF) is a syndrome characterized by acute decompensation of chronic liver disease associated with multiple-organ failures and high short-term mortality. Acute insults to patients with chronic liver disease can lead to ACLF, among which, hepatitis B virus-related ACLF is the most common type of liver failure in the Asia-Pacific region. Currently, immune-metabolism disorders and systemic inflammation are proposed to be the main mechanisms of ACLF. The resulting cholestasis and intrahepatic microcirculatory dysfunction accelerate the development of ACLF. Treatments targeting immune regulation, metabolic balance, microcirculation maintenance and bile duct repair can alleviate inflammation and restore the tissue structure. An increasing number of studies have demonstrated that delta-like ligand 4 (DLL4), one of the Notch signalling ligands, plays a vital role in immune regulation, metabolism, angiogenesis, and biliary regeneration, which participate in liver pathological and physiological processes. The detailed mechanism of the DLL4-Notch signalling pathway in ACLF has rarely been investigated. Here, we review the evidence showing that DLL4-Notch signalling is involved in ACLF and analyse the potential role of DLL4 in the treatment of ACLF.
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Affiliation(s)
- Qian Zhou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Bingqi Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Jun Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China; Precision Medicine Center of Taizhou Central Hospital, Taizhou University Medical School, Taizhou, China.
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21
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Compartmentalized regulation of lipid signaling in oxidative stress and inflammation: Plasmalogens, oxidized lipids and ferroptosis as new paradigms of bioactive lipid research. Prog Lipid Res 2023; 89:101207. [PMID: 36464139 DOI: 10.1016/j.plipres.2022.101207] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/24/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022]
Abstract
Perturbations in lipid homeostasis combined with conditions favoring oxidative stress constitute a hallmark of the inflammatory response. In this review we focus on the most recent results concerning lipid signaling in various oxidative stress-mediated responses and inflammation. These include phagocytosis and ferroptosis. The best characterized event, common to these responses, is the synthesis of oxygenated metabolites of arachidonic acid and other polyunsaturated fatty acids. Major developments in this area have highlighted the importance of compartmentalization of the enzymes and lipid substrates in shaping the appropriate response. In parallel, other relevant lipid metabolic pathways are also activated and, until recently, there has been a general lack of knowledge on the enzyme regulation and molecular mechanisms operating in these pathways. Specifically, data accumulated in recent years on the regulation and biological significance of plasmalogens and oxidized phospholipids have expanded our knowledge on the involvement of lipid metabolism in the progression of disease and the return to homeostasis. These recent major developments have helped to establish the concept of membrane phospholipids as cellular repositories for the compartmentalized production of bioactive lipids involved in cellular regulation. Importantly, an enzyme classically described as being involved in regulating the homeostatic turnover of phospholipids, namely the group VIA Ca2+-independent phospholipase A2 (iPLA2β), has taken center stage in oxidative stress and inflammation research owing to its key involvement in regulating metabolic and ferroptotic signals arising from membrane phospholipids. Understanding the role of iPLA2β in ferroptosis and metabolism not only broadens our knowledge of disease but also opens possible new horizons for this enzyme as a target for therapeutic intervention.
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22
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Zou B, Shao L, Yu Q, Zhao Y, Li X, Dai R. Changes of mitochondrial lipid molecules, structure, cytochrome c and ROS of beef Longissimus lumborum and Psoas major during postmortem storage and their potential associations with beef quality. Meat Sci 2023; 195:109013. [DOI: 10.1016/j.meatsci.2022.109013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/09/2022]
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23
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Transcriptomic analysis of the innate immune response to in vitro transfection of plasmid DNA. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 31:43-56. [PMID: 36618265 PMCID: PMC9800263 DOI: 10.1016/j.omtn.2022.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
The innate immune response to cytosolic DNA is intended to protect the host from viral infections, but it can also inhibit the delivery and expression of therapeutic transgenes in gene and cell therapies. The goal of this work was to use mRNA sequencing to identify genes that may influence transfection efficiency in four different cell types (PC-3, Jurkat, HEK-293T, and primary T cells). The highest transfection efficiency was observed in HEK-293T cells, which upregulated only 142 genes with no known antiviral functions after transfection with lipofectamine. Lipofection upregulated 1,057 cytokine-stimulated genes (CSGs) in PC-3 cells, which exhibited a significantly lower transfection efficiency. However, when PC-3 cells were transfected in serum-containing media or electroporated, the observed transfection efficiencies were significantly higher while the expression levels of cytokines and CSGs decreased. In contrast, lipofection of Jurkat and primary T cells only upregulated a few genes, but several of the antiviral CSGs that were absent in HEK-293T cells and upregulated in PC-3 cells were observed to be constitutively expressed in T cells, which may explain the relatively low Lipofection efficiencies observed with T cells (8%-21% GFP+). Indeed, overexpression of one CSG (IFI16) significantly decreased transfection efficiency in HEK-293T cells.
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24
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Brailey PM, Evans L, López-Rodríguez JC, Sinadinos A, Tyrrel V, Kelly G, O'Donnell V, Ghazal P, John S, Barral P. CD1d-dependent rewiring of lipid metabolism in macrophages regulates innate immune responses. Nat Commun 2022; 13:6723. [PMID: 36344546 PMCID: PMC9640663 DOI: 10.1038/s41467-022-34532-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 10/27/2022] [Indexed: 11/09/2022] Open
Abstract
Alterations in cellular metabolism underpin macrophage activation, yet little is known regarding how key immunological molecules regulate metabolic programs in macrophages. Here we uncover a function for the antigen presenting molecule CD1d in the control of lipid metabolism. We show that CD1d-deficient macrophages exhibit a metabolic reprogramming, with a downregulation of lipid metabolic pathways and an increase in exogenous lipid import. This metabolic rewiring primes macrophages for enhanced responses to innate signals, as CD1d-KO cells show higher signalling and cytokine secretion upon Toll-like receptor stimulation. Mechanistically, CD1d modulates lipid import by controlling the internalization of the lipid transporter CD36, while blocking lipid uptake through CD36 restores metabolic and immune responses in macrophages. Thus, our data reveal CD1d as a key regulator of an inflammatory-metabolic circuit in macrophages, independent of its function in the control of T cell responses.
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Affiliation(s)
- Phillip M Brailey
- The Peter Gorer Department of Immunobiology, King's College London, London, UK
- The Francis Crick Institute, London, UK
| | - Lauren Evans
- The Peter Gorer Department of Immunobiology, King's College London, London, UK
- The Francis Crick Institute, London, UK
| | - Juan Carlos López-Rodríguez
- The Peter Gorer Department of Immunobiology, King's College London, London, UK
- The Francis Crick Institute, London, UK
| | - Anthony Sinadinos
- The Peter Gorer Department of Immunobiology, King's College London, London, UK
- The Francis Crick Institute, London, UK
| | | | | | | | - Peter Ghazal
- School of Medicine, Cardiff University, Cardiff, UK
| | - Susan John
- The Peter Gorer Department of Immunobiology, King's College London, London, UK
| | - Patricia Barral
- The Peter Gorer Department of Immunobiology, King's College London, London, UK.
- The Francis Crick Institute, London, UK.
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25
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Mauhin W, Brassier A, London J, Subran B, Zeggane A, Besset Q, Jammal C, Montardi C, Mellot C, Strauss C, Borie R, Lidove O. Manifestations pulmonaires des maladies héréditaires du métabolisme. Rev Mal Respir 2022; 39:758-777. [DOI: 10.1016/j.rmr.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/11/2022] [Indexed: 11/05/2022]
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26
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Zhao N, Quicksall Z, Asmann YW, Ren Y. Network approaches for omics studies of neurodegenerative diseases. Front Genet 2022; 13:984338. [PMID: 36186441 PMCID: PMC9523597 DOI: 10.3389/fgene.2022.984338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/31/2022] [Indexed: 11/13/2022] Open
Abstract
The recent methodological advances in multi-omics approaches, including genomic, transcriptomic, metabolomic, lipidomic, and proteomic, have revolutionized the research field by generating “big data” which greatly enhanced our understanding of the molecular complexity of the brain and disease states. Network approaches have been routinely applied to single-omics data to provide critical insight into disease biology. Furthermore, multi-omics integration has emerged as both a vital need and a new direction to connect the different layers of information underlying disease mechanisms. In this review article, we summarize popular network analytic approaches for single-omics data and multi-omics integration and discuss how these approaches have been utilized in studying neurodegenerative diseases.
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Affiliation(s)
- Na Zhao
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, United States
| | - Zachary Quicksall
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL, United States
| | - Yan W. Asmann
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL, United States
| | - Yingxue Ren
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL, United States
- *Correspondence: Yingxue Ren,
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27
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Chou C, Mohanty S, Kang HA, Kong L, Avila‐Pacheco J, Joshi SR, Ueda I, Devine L, Raddassi K, Pierce K, Jeanfavre S, Bullock K, Meng H, Clish C, Santori FR, Shaw AC, Xavier RJ. Metabolomic and transcriptomic signatures of influenza vaccine response in healthy young and older adults. Aging Cell 2022; 21:e13682. [PMID: 35996998 PMCID: PMC9470889 DOI: 10.1111/acel.13682] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 06/03/2022] [Accepted: 06/13/2022] [Indexed: 01/25/2023] Open
Abstract
Seasonal influenza causes mild to severe respiratory infections and significant morbidity, especially in older adults. Transcriptomic analysis in populations across multiple flu seasons has provided insights into the molecular determinants of vaccine response. Still, the metabolic changes that underlie the immune response to influenza vaccination remain poorly characterized. We performed untargeted metabolomics to analyze plasma metabolites in a cohort of younger and older subjects before and after influenza vaccination to identify vaccine-induced molecular signatures. Metabolomic and transcriptomic data were combined to define networks of gene and metabolic signatures indicative of high and low antibody response in these individuals. We observed age-related differences in metabolic baselines and signatures of antibody response to influenza vaccination and the abundance of α-linolenic and linoleic acids, sterol esters, fatty-acylcarnitines, and triacylglycerol metabolism. We identified a metabolomic signature associated with age-dependent vaccine response, finding increased tryptophan and decreased polyunsaturated fatty acids (PUFAs) in young high responders (HRs), while fatty acid synthesis and cholesteryl esters accumulated in older HRs. Integrated metabolomic and transcriptomic analysis shows that depletion of PUFAs, which are building blocks for prostaglandins and other lipid immunomodulators, in young HR subjects at Day 28 is related to a robust immune response to influenza vaccination. Increased glycerophospholipid levels were associated with an inflammatory response in older HRs to flu vaccination. This multi-omics approach uncovered age-related molecular markers associated with influenza vaccine response and provides insight into vaccine-induced metabolic responses that may help guide development of more effective influenza vaccines.
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Affiliation(s)
- Chih‐Hung Chou
- Broad Institute of MIT and HarvardCambridgeMassachusettsUSA
| | - Subhasis Mohanty
- Section of Infectious Diseases, Department of Internal MedicineYale School of MedicineNew HavenConnecticutUSA
| | | | - Lingjia Kong
- Broad Institute of MIT and HarvardCambridgeMassachusettsUSA
| | | | - Samit R. Joshi
- Section of Infectious Diseases, Department of Internal MedicineYale School of MedicineNew HavenConnecticutUSA
| | - Ikuyo Ueda
- Section of Infectious Diseases, Department of Internal MedicineYale School of MedicineNew HavenConnecticutUSA
| | - Lesley Devine
- Department of Laboratory MedicineYale School of MedicineNew HavenConnecticutUSA
| | - Khadir Raddassi
- Department of NeurologyYale School of MedicineNew HavenConnecticutUSA
| | - Kerry Pierce
- Broad Institute of MIT and HarvardCambridgeMassachusettsUSA
| | | | - Kevin Bullock
- Broad Institute of MIT and HarvardCambridgeMassachusettsUSA
| | - Hailong Meng
- Department of PathologyYale School of MedicineNew HavenConnecticutUSA
| | - Clary Clish
- Broad Institute of MIT and HarvardCambridgeMassachusettsUSA
| | - Fabio R. Santori
- Center for Molecular MedicineUniversity of GeorgiaAthensGeorgiaUSA
| | - Albert C. Shaw
- Section of Infectious Diseases, Department of Internal MedicineYale School of MedicineNew HavenConnecticutUSA
| | - Ramnik J. Xavier
- Broad Institute of MIT and HarvardCambridgeMassachusettsUSA
- Klarman Cell ObservatoryBroad Institute of Harvard and MITCambridgeMassachusettsUSA
- Center for Computational and Integrative Biology and Department of Molecular BiologyMassachusetts General Hospital and Harvard Medical SchoolBostonMassachusettsUSA
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28
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Grabowski GA, Mistry PK. Therapies for lysosomal storage diseases: Principles, practice, and prospects for refinements based on evolving science. Mol Genet Metab 2022; 137:81-91. [PMID: 35933791 DOI: 10.1016/j.ymgme.2022.07.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 12/25/2022]
Affiliation(s)
- Gregory A Grabowski
- University of Cincinnati College of Medicine, Department of Pediatrics, Department of Molecular Genetics, Biochemistry and Microbiology, United States of America; Division of Human Genetics, Cincinnati Children's Hospital Research Foundation, Cincinnati, OH, United States of America.
| | - Pramod K Mistry
- Yale School of Medicine, Department of Medicine, Department of Pediatrics, Department of Cellular & Molecular Physiology, New Haven, CT, United States of America
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29
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Lipids and the cancer stemness regulatory system in acute myeloid leukemia. Essays Biochem 2022; 66:333-344. [PMID: 35996953 DOI: 10.1042/ebc20220028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/30/2022] [Accepted: 08/08/2022] [Indexed: 12/17/2022]
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease of impaired myeloid differentiation and a caricature of normal hematopoiesis. Leukemic stem cells (LSCs) are responsible for long-term clonal propagation in AML just as hematopoietic stem cells (HSCs) sustain lifelong hematopoiesis. LSCs are often resistant to standard chemotherapy and are responsible for clinical relapse. Although AML is highly heterogeneous, determinants of stemness are prognostic for AML patient survival and can predict AML drug sensitivity. Therefore, one way to overcome challenges preventing efficacious treatment outcomes is to target LSC stemness. Metabolomic and lipidomic studies of serum and cells from AML patients are emerging to complement genomic, transcriptomic, epigenetic, and proteomic data sets to characterize and stratify AML. Recent studies have shown the value of fractionating LSCs versus blasts when characterizing metabolic pathways and implicate the importance of lipid balance to LSCs function. As more extensive metabolic studies coupled to functional in vivo assays are conducted on highly purified HSCs, bulk AML, and LSCs, the similarities and differences in lipid homeostasis in stem-like versus more mature AML subtypes as well as from normal HSCs are emerging. Here, we discuss the latest findings from studies of lipid function in LSCs, with a focus on sphingolipids (SLs) as stemness/lineage fate mediators in AML, and the balance of fatty acid anabolism and catabolism fueling metabolic flexibility and drug resistance in AML. We also discuss how designing successful strategies to target lipid vulnerabilities and improve AML patient survival should take into consideration the hierarchical nature of AML.
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30
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Gao X, Lin L, Hu A, Zhao H, Kang L, Wang X, Yuan C, Yang P, Shen H. Shotgun lipidomics combined targeted MRM reveals sphingolipid signatures of coronary artery disease. Talanta 2022; 245:123475. [DOI: 10.1016/j.talanta.2022.123475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/07/2022] [Accepted: 04/09/2022] [Indexed: 11/16/2022]
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31
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Engelmann C, Aehling NF, Schob S, Nonnenmacher I, Handmann L, Macnaughtan J, Herber A, Surov A, Kaiser T, Denecke T, Jalan R, Seehofer D, Moche M, Berg T. Body fat composition determines outcomes before and after liver transplantation in patients with cirrhosis. Hepatol Commun 2022; 6:2198-2209. [PMID: 35420246 PMCID: PMC9315113 DOI: 10.1002/hep4.1946] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 01/24/2022] [Accepted: 02/17/2022] [Indexed: 11/25/2022] Open
Abstract
Cachexia occurs in late stages of liver cirrhosis, and a low-fat mass is potentially associated with poor outcome. This study compared different computed tomography (CT)-derived fat parameters with respect to its prognostic impact on the development of complications and death before and after liver transplantation. Between 2001 and 2014, 612 patients with liver cirrhosis without hepatocellular carcinoma listed for liver transplantation met the inclusion criteria, including abdominal CT scan (±200 days to listing). A total of 109 patients without cirrhosis served as controls. The subcutaneous fat index (SCFI), the paraspinal muscle fat index, and the visceral fat index were assessed at L3/L4 level and normalized to the height (cm2 /m2 ). Data were collected and analyzed retrospectively. Low SCFI was associated with a higher rate of ascites and increased C-reactive protein levels (p < 0.001). In addition, multivariate Cox regression analysis adjusting for sex, age, body mass index (BMI), and Model for End-Stage Liver Disease showed that decreasing SCFI was also associated with an increased risk of cirrhosis-related complications (p = 0.003) and death on the transplant wait list (p = 0.013). Increased paraspinal and visceral fat were not only positively correlated with creatinine levels (p < 0.001), BMI, and metabolic comorbidities (all p < 0.001) before transplantation, but also predictive for 1-year mortality after transplantation. Conclusion: The distribution of body fat is a major determinant for complications and outcome in cirrhosis before and after liver transplantation.
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Affiliation(s)
- Cornelius Engelmann
- Division of HepatologyDepartment of Medicine IILeipzig University Medical CenterLeipzigGermany.,Liver Failure GroupInstitute for Liver and Digestive HealthUniversity College LondonRoyal Free CampusLondonUK.,Department of Hepatology and GastroenterologyCampus Virchow-KlinikumCharité-Universitaetsmedizin BerlinBerlinGermany.,522475Berlin Institute of HealthBerlinGermany
| | - Niklas F Aehling
- Division of HepatologyDepartment of Medicine IILeipzig University Medical CenterLeipzigGermany
| | - Stefan Schob
- Department for NeuroradiologyUniversity Hospital LeipzigLeipzigGermany
| | - Ines Nonnenmacher
- Division of HepatologyDepartment of Medicine IILeipzig University Medical CenterLeipzigGermany
| | - Luise Handmann
- Division of HepatologyDepartment of Medicine IILeipzig University Medical CenterLeipzigGermany
| | - Jane Macnaughtan
- Liver Failure GroupInstitute for Liver and Digestive HealthUniversity College LondonRoyal Free CampusLondonUK
| | - Adam Herber
- Division of HepatologyDepartment of Medicine IILeipzig University Medical CenterLeipzigGermany
| | - Alexey Surov
- Department of Diagnostic and Interventional RadiologyUniversity Hospital LeipzigLeipzigGermany
| | - Thorsten Kaiser
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular DiagnosticsUniversity Hospital LeipzigLeipzigGermany
| | - Timm Denecke
- Department of Diagnostic and Interventional RadiologyUniversity Hospital LeipzigLeipzigGermany
| | - Rajiv Jalan
- Liver Failure GroupInstitute for Liver and Digestive HealthUniversity College LondonRoyal Free CampusLondonUK
| | - Daniel Seehofer
- Department of VisceralVascularThoracic and Transplant SurgeryUniversity Hospital LeipzigLeipzigGermany
| | - Michael Moche
- Department of Diagnostic and Interventional RadiologyUniversity Hospital LeipzigLeipzigGermany.,Diagnostic and Interventional RadiologyPark Hospital LeipzigLeipzigGermany
| | - Thomas Berg
- Division of HepatologyDepartment of Medicine IILeipzig University Medical CenterLeipzigGermany
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32
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Mir SA, Chen L, Burugupalli S, Burla B, Ji S, Smith AAT, Narasimhan K, Ramasamy A, Tan KML, Huynh K, Giles C, Mei D, Wong G, Yap F, Tan KH, Collier F, Saffery R, Vuillermin P, Bendt AK, Burgner D, Ponsonby AL, Lee YS, Chong YS, Gluckman PD, Eriksson JG, Meikle PJ, Wenk MR, Karnani N. Population-based plasma lipidomics reveals developmental changes in metabolism and signatures of obesity risk: a mother-offspring cohort study. BMC Med 2022; 20:242. [PMID: 35871677 PMCID: PMC9310480 DOI: 10.1186/s12916-022-02432-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 06/09/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Lipids play a vital role in health and disease, but changes to their circulating levels and the link with obesity remain poorly characterized in expecting mothers and their offspring in early childhood. METHODS LC-MS/MS-based quantitation of 480 lipid species was performed on 2491 plasma samples collected at 4 time points in the mother-offspring Asian cohort GUSTO (Growing Up in Singapore Towards healthy Outcomes). These 4 time points constituted samples collected from mothers at 26-28 weeks of gestation (n=752) and 4-5 years postpartum (n=650), and their offspring at birth (n=751) and 6 years of age (n=338). Linear regression models were used to identify the pregnancy and developmental age-specific variations in the plasma lipidomic profiles, and their association with obesity risk. An independent birth cohort (n=1935), the Barwon Infant Study (BIS), comprising mother-offspring dyads of Caucasian origin was used for validation. RESULTS Levels of 36% of the profiled lipids were significantly higher (absolute fold change > 1.5 and Padj < 0.05) in antenatal maternal circulation as compared to the postnatal phase, with phosphatidylethanolamine levels changing the most. Compared to antenatal maternal lipids, cord blood showed lower concentrations of most lipid species (79%) except lysophospholipids and acylcarnitines. Changes in lipid concentrations from birth to 6 years of age were much higher in magnitude (log2FC=-2.10 to 6.25) than the changes observed between a 6-year-old child and an adult (postnatal mother) (log2FC=-0.68 to 1.18). Associations of cord blood lipidomic profiles with birth weight displayed distinct trends compared to the lipidomic profiles associated with child BMI at 6 years. Comparison of the results between the child and adult BMI identified similarities in association with consistent trends (R2=0.75). However, large number of lipids were associated with BMI in adults (67%) compared to the children (29%). Pre-pregnancy BMI was specifically associated with decrease in the levels of phospholipids, sphingomyelin, and several triacylglycerol species in pregnancy. CONCLUSIONS In summary, our study provides a detailed landscape of the in utero lipid environment provided by the gestating mother to the growing fetus, and the magnitude of changes in plasma lipidomic profiles from birth to early childhood. We identified the effects of adiposity on the circulating lipid levels in pregnant and non-pregnant women as well as offspring at birth and at 6 years of age. Additionally, the pediatric vs maternal overlap of the circulating lipid phenotype of obesity risk provides intergenerational insights and early opportunities to track and intervene the onset of metabolic adversities. CLINICAL TRIAL REGISTRATION This birth cohort is a prospective observational study, which was registered on 1 July 2010 under the identifier NCT01174875 .
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Affiliation(s)
- Sartaj Ahmad Mir
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore.,Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Li Chen
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore.,Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore
| | - Satvika Burugupalli
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Bo Burla
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Shanshan Ji
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Adam Alexander T Smith
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Kothandaraman Narasimhan
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore
| | - Adaikalavan Ramasamy
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore
| | - Karen Mei-Ling Tan
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore
| | - Kevin Huynh
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Corey Giles
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Ding Mei
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Gerard Wong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore
| | - Fabian Yap
- KK Women's and Children's Hospital, Singapore, Singapore
| | - Kok Hian Tan
- KK Women's and Children's Hospital, Singapore, Singapore
| | - Fiona Collier
- School of Medicine, Deakin University, Geelong, Australia.,Child Health Research Unit, Barwon Health, Geelong, Australia.,Murdoch Children's Research Institute, University of Melbourne, Parkville, Australia
| | - Richard Saffery
- Murdoch Children's Research Institute, University of Melbourne, Parkville, Australia.,The Florey Institute of Neuroscience and Mental Health, Parkville, Australia
| | - Peter Vuillermin
- School of Medicine, Deakin University, Geelong, Australia.,Child Health Research Unit, Barwon Health, Geelong, Australia.,Murdoch Children's Research Institute, University of Melbourne, Parkville, Australia
| | - Anne K Bendt
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - David Burgner
- Murdoch Children's Research Institute, University of Melbourne, Parkville, Australia.,The Florey Institute of Neuroscience and Mental Health, Parkville, Australia
| | - Anne-Louise Ponsonby
- Murdoch Children's Research Institute, University of Melbourne, Parkville, Australia.,The Florey Institute of Neuroscience and Mental Health, Parkville, Australia
| | - Yung Seng Lee
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore.,Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yap Seng Chong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore.,Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Peter D Gluckman
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore.,Centre for Human Evolution, Adaptation and Disease, Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Johan G Eriksson
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore.,Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Folkhalsan Research Center, Helsinki, Finland.,Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
| | - Peter J Meikle
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC, 3004, Australia.
| | - Markus R Wenk
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore. .,Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore.
| | - Neerja Karnani
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore. .,Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, 117609, Singapore. .,DataHub Division, Bioinformatics Institute, Agency for Science, Technology and Research, Singapore, Singapore.
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An Z, Zhao R, Han F, Sun Y, Liu Y, Liu L. Potential Serum Biomarkers Associated with Premature Rupture of Fetal Membranes in the First Trimester. Front Pharmacol 2022; 13:915935. [PMID: 35873552 PMCID: PMC9304655 DOI: 10.3389/fphar.2022.915935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/14/2022] [Indexed: 11/13/2022] Open
Abstract
Premature rupture of the fetal membranes (PROM) is a common and important obstetric complication with increased risk of adverse consequences for both mothers and fetuses. An accurate and timely method to predict the occurrence of PROM is needed for ensuring maternal and fetal safety. Untargeted metabolomics was applied to characterize metabolite profiles related to PROM in early pregnancy. 41 serum samples from pregnant women who developed PROM later in gestation and 106 from healthy pregnant women as a control group, were analyzed. Logistic regression analysis was adjusted to analyze a PROM prediction model in the first trimester. A WISH amniotic cell viability assay was applied to explore the underlying mechanisms involved in PROM, mediated by C8-dihydroceramide used to mimic a potential biomarker (Cer 40:0; O2). Compared with healthy controls, 13 serum metabolites were identified. The prediction model comprising four compounds (Cer 40:0; O2, sphingosine, isohexanal and PC O-38:4) had moderate accuracy to predict PROM events with the maximum area under the curve of a receiver operating characteristics curve of approximately 0.70. Of these four compounds, Cer 40:0; O2 with an 1.81-fold change between PROM and healthy control serum samples was defined as a potential biomarker and inhibited the viability of WISH cells. This study sheds light on predicting PROM in early pregnancy and on understanding the underlying mechanism of PROM.Trial Registration: This study protocol has been registered at www.ClinicalTrials.gov, CT03651934, on 29 August 2018 (prior to recruitment).
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Affiliation(s)
- Zhuoling An
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Rui Zhao
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Feifei Han
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yuan Sun
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yanping Liu
- Department of Clinical Nutrition, Peking Union Medical College Hospital, China Academic Medical Science and Peking Union Medical College, Beijing, China
- *Correspondence: Yanping Liu, ; Lihong Liu,
| | - Lihong Liu
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- *Correspondence: Yanping Liu, ; Lihong Liu,
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34
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Zou B, Yu Q, Shao L, Sun Y, Li X, Dai R. Alteration of Mitochondrial Lipidome and Its Potential Effect on Apoptosis, Mitochondrial Reactive Oxygen Species Production, and Muscle Oxidation in Beef during Early Postmortem. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:8064-8074. [PMID: 35709527 DOI: 10.1021/acs.jafc.2c02519] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Lipid molecules are important participants in mitochondria-mediated apoptosis. This study explored the effect of mitochondrial lipids on mitochondria-mediated apoptosis, mitochondrial reactive oxygen species (ROS) production, and muscle oxidation of beef longissimus lumborum (LL, n = 6) and psoas major (PM, n = 6) during 24 h postmortem. A total of 432 lipid species matched with 21 lipid classes were identified. Remarkably, at 12 h postmortem, the levels of cardiolipin and phosphatidylserine in PM and ceramide, cardiolipin, phosphatidylserine, and sphingosine in LL increased significantly compared with 1 h postmortem, indicating that mitochondria-mediated apoptosis in beef muscle was accelerated during early postmortem. Moreover, PM had higher levels of cardiolipin and phosphatidylserine than LL, also suggesting a higher degree of apoptosis in PM during postmortem. Lipid molecules may assist the production of mitochondrial ROS and decrease the mitochondrial membrane potential (MMP) during postmortem apoptosis, resulting in muscle oxidation and the damage of antioxidant system. Notably, compared with LL, PM had higher abundance of apoptosis-related lipid molecules, a higher amount of ROS, faster diminishment in MMP, and then a higher degree of apoptosis. These findings provided new insights into the apoptosis and muscle biochemistry in beef during early postmortem.
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Affiliation(s)
- Bo Zou
- Beijing Higher Institution Engineering Research Center of Animal Product, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, P. R. China
| | - Qianqian Yu
- College of Life Science, Yantai University, No. 30 Qingquan Road, Laishan District, Yantai 264005, P. R. China
| | - Lele Shao
- Beijing Higher Institution Engineering Research Center of Animal Product, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, P. R. China
| | - Yingying Sun
- Beijing Higher Institution Engineering Research Center of Animal Product, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, P. R. China
| | - Xingmin Li
- Beijing Higher Institution Engineering Research Center of Animal Product, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, P. R. China
| | - Ruitong Dai
- Beijing Higher Institution Engineering Research Center of Animal Product, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, P. R. China
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35
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Humes ST, Iovine N, Prins C, Garrett TJ, Lednicky JA, Coker ES, Sabo-Attwood T. Association between lipid profiles and viral respiratory infections in human sputum samples. Respir Res 2022; 23:177. [PMID: 35780155 PMCID: PMC9250719 DOI: 10.1186/s12931-022-02091-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/13/2022] [Indexed: 12/03/2022] Open
Abstract
Background Respiratory infections such as influenza account for significant global mortality each year. Generating lipid profiles is a novel and emerging research approach that may provide new insights regarding the development and progression of priority respiratory infections. We hypothesized that select clusters of lipids in human sputum would be associated with specific viral infections (Influenza (H1N1, H3N2) or Rhinovirus). Methods Lipid identification and semi-quantitation was determined with liquid chromatography and high-resolution mass spectrometry in induced sputum from individuals with confirmed respiratory infections (influenza (H1N1, H3N2) or rhinovirus). Clusters of lipid species and associations between lipid profiles and the type of respiratory viral agent was determined using Bayesian profile regression and multinomial logistic regression. Results More than 600 lipid compounds were identified across the sputum samples with the most abundant lipid classes identified as triglycerides (TG), phosphatidylethanolamines (PE), phosphatidylcholines (PC), Sphingomyelins (SM), ether-PC, and ether-PE. A total of 12 lipid species were significantly different when stratified by infection type and included acylcarnitine (AcCar) (10:1, 16:1, 18:2), diacylglycerols (DG) (16:0_18:0, 18:0_18:0), Lysophosphatidylcholine (LPC) (12:0, 20:5), PE (18:0_18:0), and TG (14:1_16:0_18:2, 15:0_17:0_19:0, 16:0_17:0_18:0, 19:0_19:0_19:0). Cluster analysis yielded three clusters of lipid profiles that were driven by just 10 lipid species (TGs and DGs). Cluster 1 had the highest levels of each lipid species and the highest prevalence of influenza A H3 infection (56%, n = 5) whereas cluster 3 had lower levels of each lipid species and the highest prevalence of rhinovirus (60%; n = 6). Using cluster 3 as the reference group, the crude odds of influenza A H3 infection compared to rhinovirus in cluster 1 was significantly (p = 0.047) higher (OR = 15.00 [95% CI: 1.03, 218.29]). After adjustment for confounders (smoking status and pulmonary comorbidities), the odds ratio (OR) became only marginally significant (p = 0.099), but the magnitude of the effect estimate was similar (OR = 16.00 [0.59, 433.03]). Conclusions In this study, human sputum lipid profiles were shown to be associated with distinct types of viral infection. Better understanding the relationship between respiratory infections of global importance and lipids contributes to advancing knowledge of pathogenesis of infections including identifying populations with increased susceptibility and developing effective therapeutics and biomarkers of health status. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02091-w.
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Affiliation(s)
- Sara T Humes
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, Emerging Pathogens Institute, University of Florida, Gainesville, Florida, 32611, USA
| | - Nicole Iovine
- Division of Infectious Diseases & Global Medicine, University of Florida, Gainesville, Florida, 32611, USA
| | - Cindy Prins
- Department of Epidemiology, University of Florida, Gainesville, Florida, 32611, USA
| | - Timothy J Garrett
- Department of Pathology, Immunology and Laboratory Medicine and Southeast Center for Integrated Metabolomics, University of Florida, Gainesville, Florida, 32611, USA
| | - John A Lednicky
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, Emerging Pathogens Institute, University of Florida, Gainesville, Florida, 32611, USA
| | - Eric S Coker
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, Emerging Pathogens Institute, University of Florida, Gainesville, Florida, 32611, USA
| | - Tara Sabo-Attwood
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, Emerging Pathogens Institute, University of Florida, Gainesville, Florida, 32611, USA.
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36
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Tan S, Feng X, Liu Z, Wang Q, Jiang Q, Ye X, Li H, Su G, Zhou C, Wang Y, Yang P. The pro-inflammatory effect of triglyceride on human CD4 + T cells and experimental autoimmune uveitis. Clin Immunol 2022; 240:109056. [PMID: 35659924 DOI: 10.1016/j.clim.2022.109056] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 05/20/2022] [Accepted: 05/26/2022] [Indexed: 11/28/2022]
Abstract
Aberrant lipid metabolism plays a role in inflammation and progression of autoimmune diseases but the definite mechanism remains unclear. In this study we investigate lipidomic profiles in Behçet's disease (BD) and the role of triglyceride (TAG) in the pathogenesis of autoimmune uveitis. Lipidomics revealed a distinct lipid metabolite profile including increased TAG metabolites in plasma of active BD patients. TAG could stimulate the proliferation, IL-17 and IFN-γ expression by CD4+ T cells and Th1, Th17 cell differentiation in vitro, but did not influence neutrophils. A922500 inhibited the TAG generation, ameliorated the EAU severity, decreased Th17 frequency and IL-17 expression by CD4+ T cells in vivo. The proteomocis analysis showed an up-regulation of apoptosis-related protein, Pik3r2, in CD4+ T cells from A922500-treated mice. In conclusion, TAG can stimulate human CD4+ T cells and the inhibition of its generation could significantly ameliorate EAU activity in association with down-regulated Th17 cell response.
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Affiliation(s)
- Shiyao Tan
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Xiaojie Feng
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Zhangluxi Liu
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Qingfeng Wang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Qingyan Jiang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Xingsheng Ye
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Hongxi Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Guannan Su
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Chunjiang Zhou
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Yao Wang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China
| | - Peizeng Yang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, PR China.
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Muralidharan S, Torta F, Lin MK, Olona A, Bagnati M, Moreno-Moral A, Ko JH, Ji S, Burla B, Wenk MR, Rodrigues HG, Petretto E, Behmoaras J. Immunolipidomics Reveals a Globoside Network During the Resolution of Pro-Inflammatory Response in Human Macrophages. Front Immunol 2022; 13:926220. [PMID: 35844525 PMCID: PMC9280915 DOI: 10.3389/fimmu.2022.926220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/06/2022] [Indexed: 11/13/2022] Open
Abstract
Toll-like receptor 4 (TLR4)-mediated changes in macrophages reshape intracellular lipid pools to coordinate an effective innate immune response. Although this has been previously well-studied in different model systems, it remains incompletely understood in primary human macrophages. Here we report time-dependent lipidomic and transcriptomic responses to lipopolysaccharide (LPS) in primary human macrophages from healthy donors. We grouped the variation of ~200 individual lipid species measured by LC-MS/MS into eight temporal clusters. Among all other lipids, glycosphingolipids (glycoSP) and cholesteryl esters (CE) showed a sharp increase during the resolution phase (between 8h or 16h post LPS). GlycoSP, belonging to the globoside family (Gb3 and Gb4), showed the greatest inter-individual variability among all lipids quantified. Integrative network analysis between GlycoSP/CE levels and genome-wide transcripts, identified Gb4 d18:1/16:0 and CE 20:4 association with subnetworks enriched for T cell receptor signaling (PDCD1, CD86, PTPRC, CD247, IFNG) and DC-SIGN signaling (RAF1, CD209), respectively. Our findings reveal Gb3 and Gb4 globosides as sphingolipids associated with the resolution phase of inflammatory response in human macrophages.
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Affiliation(s)
- Sneha Muralidharan
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore,Institute for Stem Cell Science and Regenerative Medicine (inStem), Bangalore, India
| | - Federico Torta
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore,Precision Medicine Translational Research Programme and Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore,*Correspondence: Jacques Behmoaras, ; Federico Torta,
| | - Michelle K. Lin
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Antoni Olona
- Program in Cardiovascular and Metabolic Disorders (CVMD) and Center for Computational Biology (CCB), Duke NUS Graduate Medical School, Singapore, Singapore
| | - Marta Bagnati
- Department of Immunology and Inflammation, Centre for Inflammatory Disease, Imperial College London, London, United Kingdom
| | - Aida Moreno-Moral
- Program in Cardiovascular and Metabolic Disorders (CVMD) and Center for Computational Biology (CCB), Duke NUS Graduate Medical School, Singapore, Singapore
| | - Jeong-Hun Ko
- Department of Immunology and Inflammation, Centre for Inflammatory Disease, Imperial College London, London, United Kingdom
| | - Shanshan Ji
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Bo Burla
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Markus R. Wenk
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore,Precision Medicine Translational Research Programme and Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Hosana G. Rodrigues
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Enrico Petretto
- Program in Cardiovascular and Metabolic Disorders (CVMD) and Center for Computational Biology (CCB), Duke NUS Graduate Medical School, Singapore, Singapore,MRC London Institute of Medical Sciences (LMC), Imperial College, London, United Kingdom,Institute for Big Data and Artificial Intelligence in Medicine, School of Science, China Pharmaceutical University, Nanjing, China
| | - Jacques Behmoaras
- Program in Cardiovascular and Metabolic Disorders (CVMD) and Center for Computational Biology (CCB), Duke NUS Graduate Medical School, Singapore, Singapore,Department of Immunology and Inflammation, Centre for Inflammatory Disease, Imperial College London, London, United Kingdom,*Correspondence: Jacques Behmoaras, ; Federico Torta,
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38
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Zhang Y, Chen W, Cheng X, Wang F, Gao C, Song F, Song F, Liang X, Fang W, Chen Z. Sphingomyelin Phodiesterase Acid-Like 3A Promotes Hepatocellular Carcinoma Growth Through the Enhancer of Rudimentary Homolog. Front Oncol 2022; 12:852765. [PMID: 35686107 PMCID: PMC9171240 DOI: 10.3389/fonc.2022.852765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 04/25/2022] [Indexed: 12/24/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide, with unclear pathogenesis. Sphingomyelin phodiesterase acid-like 3A (SMPDL3A) affects cell differentiation and participates in immune regulation. However, its molecular biological function in HCC has not yet been elucidated. Methods Data from 180 HCC patients were analyzed the relationship between the expression of SMPDL3A in liver cancer tissues and the prognosis of liver cancer patients. Crispr-Cas9 dual vector lentivirus was used to knock out SMPDL3A in HCC cell lines. The effects of SMPDL3A on cell viability were determined by CCK8 assay, clone formation experiment, cell cycle assay, cell scratch, TUNEL experiment and flow cytometry. Xenograft tumor assays in BALB/c nude mice confirmed that SMPDL3A promoted tumor growth and in vivo. Preliminary exploration of SMPDL3A interacting protein by mass spectrometry analysis and co-immunoprecipitation. Results This study showed that the expression of SMPDL3A in HCC tissue differed from that in tumor-adjacent tissues. Moreover, the overall survival rate and tumor-free survival rate of patients with high-SMPDL3A expression were significantly lower than those with low-SMPDL3A expression. SMPDL3A expression was closely related to the level of protein induced by PIVKA-II, liver cirrhosis, tumor diameter, microvascular invasion, and Barcelona clinic liver cancer staging. Thus, SMPDL3A is an independent risk factor that affects the tumor-free survival rate and overall survival rate of HCC patients. In vitro study using Crispr-Cas9 genome editing technology revealed the knockout effect of SMPDL3A on cell proliferation, apoptosis, and migration. Cell counting kit-8 assay and clone formation experiment showed that sgSMPDL3A inhibited tumor cell proliferation and migration. Flow cytometry and TUNEL assay showed that sgSMPDL3A promoted apoptosis in tumors. Moreover, sgSMPDL3A inhibited tumor growth during subcutaneous tumor formation in nude mice. Immunohistochemistry of Ki67 and PNCA also indicated that sgSMPDL3A inhibited subcutaneous tumor proliferation in tumor-bearing nude mice. Further experiments showed that SMPDL3A interacts with the enhancer of rudimentary homolog (ERH). Conclusions High-SMPDL3A expression was related to poor prognosis of patients with HCC. Knockout of SMPDL3A inhibited the proliferation and migration and accelerated the migration of HCC cells. SMPDL3A interacted with ERH to affect the tumorigenesis and progression of HCC.
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Affiliation(s)
- Yu Zhang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China.,School of Medicine, Nantong University, Nantong, China
| | - Weipeng Chen
- School of Medicine, Nantong University, Nantong, China.,Department of General Surgery, Binhai County People's Hospital, Yancheng, China
| | - Xin Cheng
- School of Medicine, Nantong University, Nantong, China.,Department of General Surgery, Jingjiang People's Hospital, Taizhou, China
| | - Feiran Wang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China.,School of Medicine, Nantong University, Nantong, China
| | - Cheng Gao
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China.,School of Medicine, Nantong University, Nantong, China
| | - Fei Song
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Fengliang Song
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoliang Liang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Wanzhi Fang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Zhong Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
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PI(18:1/18:1) is a SCD1-derived lipokine that limits stress signaling. Nat Commun 2022; 13:2982. [PMID: 35624087 PMCID: PMC9142606 DOI: 10.1038/s41467-022-30374-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/27/2022] [Indexed: 02/07/2023] Open
Abstract
Cytotoxic stress activates stress-activated kinases, initiates adaptive mechanisms, including the unfolded protein response (UPR) and autophagy, and induces programmed cell death. Fatty acid unsaturation, controlled by stearoyl-CoA desaturase (SCD)1, prevents cytotoxic stress but the mechanisms are diffuse. Here, we show that 1,2-dioleoyl-sn-glycero-3-phospho-(1’-myo-inositol) [PI(18:1/18:1)] is a SCD1-derived signaling lipid, which inhibits p38 mitogen-activated protein kinase activation, counteracts UPR, endoplasmic reticulum-associated protein degradation, and apoptosis, regulates autophagy, and maintains cell morphology and proliferation. SCD1 expression and the cellular PI(18:1/18:1) proportion decrease during the onset of cell death, thereby repressing protein phosphatase 2 A and enhancing stress signaling. This counter-regulation applies to mechanistically diverse death-inducing conditions and is found in multiple human and mouse cell lines and tissues of Scd1-defective mice. PI(18:1/18:1) ratios reflect stress tolerance in tumorigenesis, chemoresistance, infection, high-fat diet, and immune aging. Together, PI(18:1/18:1) is a lipokine that links fatty acid unsaturation with stress responses, and its depletion evokes stress signaling. Fatty acid unsaturation by stearoyl-CoA desaturase 1 (SCD1) protects against cellular stress through unclear mechanisms. Here the authors show 1,2-dioleoyl-sn-glycero-3-phospho-(1’-myo-inositol) is an SCD1-derived signaling lipid that regulates stress-adaption, protects against cell death and promotes proliferation.
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40
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Hütter CVR, Sin C, Müller F, Menche J. Network cartographs for interpretable visualizations. NATURE COMPUTATIONAL SCIENCE 2022; 2:84-89. [PMID: 38177513 PMCID: PMC10766564 DOI: 10.1038/s43588-022-00199-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 01/20/2022] [Indexed: 01/06/2024]
Abstract
Networks offer an intuitive visual representation of complex systems. Important network characteristics can often be recognized by eye and, in turn, patterns that stand out visually often have a meaningful interpretation. In conventional network layout algorithms, however, the precise determinants of a node's position within a layout are difficult to decipher and to control. Here we propose an approach for directly encoding arbitrary structural or functional network characteristics into node positions. We introduce a series of two- and three-dimensional layouts, benchmark their efficiency for model networks, and demonstrate their power for elucidating structure-to-function relationships in large-scale biological networks.
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Affiliation(s)
- Christiane V R Hütter
- Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Vienna BioCenter PhD Program, a Doctoral School of the University of Vienna and the Medical University of Vienna, Vienna, Austria
| | - Celine Sin
- Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Felix Müller
- Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Jörg Menche
- Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Vienna, Austria.
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.
- Faculty of Mathematics, University of Vienna, Vienna, Austria.
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Vietri Rudan M, Watt FM. Mammalian Epidermis: A Compendium of Lipid Functionality. Front Physiol 2022; 12:804824. [PMID: 35095565 PMCID: PMC8791442 DOI: 10.3389/fphys.2021.804824] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/13/2021] [Indexed: 11/13/2022] Open
Abstract
Mammalian epidermis is a striking example of the role of lipids in tissue biology. In this stratified epithelium, highly specialized structures are formed that leverage the hydrophobic properties of lipids to form an impermeable barrier and protect the humid internal environment of the body from the dry outside. This is achieved through tightly regulated lipid synthesis that generates the molecular species unique to the tissue. Beyond their fundamental structural role, lipids are involved in the active protection of the body from external insults. Lipid species present on the surface of the body possess antimicrobial activity and directly contribute to shaping the commensal microbiota. Lipids belonging to a variety of classes are also involved in the signaling events that modulate the immune responses to environmental stress as well as differentiation of the epidermal keratinocytes themselves. Recently, high-resolution methods are beginning to provide evidence for the involvement of newly identified specific lipid molecules in the regulation of epidermal homeostasis. In this review we give an overview of the wide range of biological functions of mammalian epidermal lipids.
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Clària J, Curto A, Moreau R, Colsch B, López-Vicario C, Lozano JJ, Aguilar F, Castelli FA, Fenaille F, Junot C, Zhang I, Vinaixa M, Yanes O, Caraceni P, Trebicka J, Fernández J, Angeli P, Jalan R, Arroyo V. Untargeted lipidomics uncovers lipid signatures that distinguish severe from moderate forms of acutely decompensated cirrhosis. J Hepatol 2021; 75:1116-1127. [PMID: 34245803 DOI: 10.1016/j.jhep.2021.06.043] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 06/16/2021] [Accepted: 06/30/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Acute decompensation (AD) of cirrhosis is a heterogeneous clinical entity associated with moderate mortality. In some patients, this condition develops quickly into the more deadly acute-on-chronic liver failure (ACLF), in which other organs such as the kidneys or brain fail. The aim of this study was to characterize the blood lipidome in a large series of patients with cirrhosis and identify specific signatures associated with AD and ACLF development. METHODS Serum untargeted lipidomics was performed in 561 patients with AD (518 without and 43 with ACLF) (discovery cohort) and in 265 patients with AD (128 without and 137 with ACLF) in whom serum samples were available to perform repeated measurements during the 28-day follow-up (validation cohort). Analyses were also performed in 78 patients with AD included in a therapeutic albumin trial (43 patients with compensated cirrhosis and 29 healthy individuals). RESULTS The circulating lipid landscape associated with cirrhosis was characterized by a generalized suppression, which was more manifest during AD and in non-surviving patients. By computing discriminating accuracy and the variable importance projection score for each of the 223 annotated lipids, we identified a sphingomyelin fingerprint specific for AD of cirrhosis and a distinct cholesteryl ester and lysophosphatidylcholine fingerprint for ACLF. Liver dysfunction and infections were the principal net contributors to these fingerprints, which were dynamic and interchangeable between patients with AD whose condition worsened to ACLF and those who improved. Notably, blood lysophosphatidylcholine levels increased in these patients after albumin therapy. CONCLUSIONS Our findings provide insights into the lipid landscape associated with decompensation of cirrhosis and ACLF progression and identify unique non-invasive diagnostic biomarkers of advanced cirrhosis. LAY SUMMARY Analysis of lipids in blood from patients with advanced cirrhosis reveals a general suppression of their levels in the circulation of these patients. A specific group of lipids known as sphingomyelins are useful to distinguish between patients with compensated and decompensated cirrhosis. Another group of lipids designated cholesteryl esters further distinguishes patients with decompensated cirrhosis who are at risk of developing organ failures.
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Affiliation(s)
- Joan Clària
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain; Hospital Clínic-IDIBAPS, Barcelona, Spain; Universitat de Barcelona, Barcelona, Spain; CIBERehd, Barcelona, Spain.
| | - Anna Curto
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain
| | - Richard Moreau
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain; Inserm, U1149, Centre de Recherche sur l'Inflammation (CRI); UMRS1149, Université de Paris; Service d'Hépatologie, Hôpital Beaujon, Assistance Publique-Hôpitaux de Paris, Clichy, France
| | - Benoit Colsch
- Université Paris Saclay, CEA, INRAE, Médicaments et Technologies pour la Santé (MTS), MetaboHUB, 91191 Gif-sur-Yvette, France
| | - Cristina López-Vicario
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain; Hospital Clínic-IDIBAPS, Barcelona, Spain
| | | | - Ferran Aguilar
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain
| | - Florence A Castelli
- Université Paris Saclay, CEA, INRAE, Médicaments et Technologies pour la Santé (MTS), MetaboHUB, 91191 Gif-sur-Yvette, France
| | - François Fenaille
- Université Paris Saclay, CEA, INRAE, Médicaments et Technologies pour la Santé (MTS), MetaboHUB, 91191 Gif-sur-Yvette, France
| | - Christophe Junot
- Université Paris Saclay, CEA, INRAE, Médicaments et Technologies pour la Santé (MTS), MetaboHUB, 91191 Gif-sur-Yvette, France
| | - Ingrid Zhang
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain; Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Maria Vinaixa
- Metabolomics Platform, Universitat Rovira i Virgili, Tarragona, Spain; CIBERdem, Tarragona, Spain
| | - Oscar Yanes
- Metabolomics Platform, Universitat Rovira i Virgili, Tarragona, Spain; CIBERdem, Tarragona, Spain
| | | | - Jonel Trebicka
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain; JW Goethe University Hospital, Frankfurt, Germany
| | - Javier Fernández
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain; Hospital Clínic-IDIBAPS, Barcelona, Spain; CIBERehd, Barcelona, Spain
| | - Paolo Angeli
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain; University of Padova, Padova, Italy
| | - Rajiv Jalan
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain; UCL Medical School, Royal Free Hospital, London, United Kingdom
| | - Vicente Arroyo
- European Foundation for the Study of Chronic Liver Failure (EF Clif) and Grifols Chair, Barcelona, Spain
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Fujii W, Kapellos TS, Baßler K, Händler K, Holsten L, Knoll R, Warnat-Herresthal S, Oestreich M, Hinkley ER, Hasenauer J, Pizarro C, Thiele C, Aschenbrenner AC, Ulas T, Skowasch D, Schultze JL. Alveolar macrophage transcriptomic profiling in COPD shows major lipid metabolism changes. ERJ Open Res 2021; 7:00915-2020. [PMID: 34527724 PMCID: PMC8435801 DOI: 10.1183/23120541.00915-2020] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 04/24/2021] [Indexed: 01/14/2023] Open
Abstract
Background Immune cells play a major role in the pathogenesis of COPD. Changes in the distribution and cellular functions of major immune cells, such as alveolar macrophages (AMs) and neutrophils are well known; however, their transcriptional reprogramming and contribution to the pathophysiology of COPD are still not fully understood. Method To determine changes in transcriptional reprogramming and lipid metabolism in the major immune cell type within bronchoalveolar lavage fluid, we analysed whole transcriptomes and lipidomes of sorted CD45+Lin−HLA-DR+CD66b−Autofluorescencehi AMs from controls and COPD patients. Results We observed global transcriptional reprogramming featuring a spectrum of activation states, including pro- and anti-inflammatory signatures. We further detected significant changes between COPD patients and controls in genes involved in lipid metabolism, such as fatty acid biosynthesis in GOLD2 patients. Based on these findings, assessment of a total of 202 lipid species in sorted AMs revealed changes of cholesteryl esters, monoacylglycerols and phospholipids in a disease grade-dependent manner. Conclusions Transcriptome and lipidome profiling of COPD AMs revealed GOLD grade-dependent changes, such as in cholesterol metabolism and interferon-α and γ responses. AMs from COPD patients undergo GOLD grade-specific transcriptional reprogramming and acquire a complex activation profile. Among the observed changes are gene programmes involved in lipid metabolism that translate into alterations in the AM lipidome.https://bit.ly/3sYAqgd
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Affiliation(s)
- Wataru Fujii
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany.,Co-first authors
| | - Theodore S Kapellos
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany.,Co-first authors
| | - Kevin Baßler
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany.,Co-first authors
| | - Kristian Händler
- Platform for Single Cell Genomics and Epigenomics (PRECISE), German Center for Neurodegenerative Diseases and the University of Bonn, Bonn, Germany
| | - Lisa Holsten
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Rainer Knoll
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Stefanie Warnat-Herresthal
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Marie Oestreich
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Emily R Hinkley
- Platform for Single Cell Genomics and Epigenomics (PRECISE), German Center for Neurodegenerative Diseases and the University of Bonn, Bonn, Germany
| | - Jan Hasenauer
- Interdisciplinary Research Unit Mathematics and Life Sciences, Dept of Mathematics and Natural Sciences, University of Bonn, Bonn, Germany
| | - Carmen Pizarro
- Dept of Internal Medicine II, University Hospital Bonn, Section of Pneumology, Bonn, Germany
| | - Christoph Thiele
- Membrane Biochemistry, LIMES Institute, University of Bonn, Bonn, Germany
| | - Anna C Aschenbrenner
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany.,Dept of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Thomas Ulas
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Dirk Skowasch
- Dept of Internal Medicine II, University Hospital Bonn, Section of Pneumology, Bonn, Germany.,Co-senior authors
| | - Joachim L Schultze
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany.,Platform for Single Cell Genomics and Epigenomics (PRECISE), German Center for Neurodegenerative Diseases and the University of Bonn, Bonn, Germany.,Co-senior authors
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Ou P, Stanek A, Huan Z, Roman CAJ, Huan C. SMS2 deficiency impairs PKCδ-regulated B cell tolerance in the germinal center. Cell Rep 2021; 36:109624. [PMID: 34469734 DOI: 10.1016/j.celrep.2021.109624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 06/14/2021] [Accepted: 08/05/2021] [Indexed: 11/29/2022] Open
Abstract
B cell tolerance prevents autoimmunity by deleting or deactivating autoreactive B cells that otherwise may cause autoantibody-driven disorders, including systemic lupus erythematosus (lupus). Lupus is characterized by immunoglobulin Gs carrying a double-stranded (ds)-DNA autospecificity derived mainly from somatic hypermutation in the germinal center (GC), pointing to a checkpoint breach of GC B cell tolerance that leads to lupus. However, tolerance mechanisms in the GC remain poorly understood. Here, we show that upregulated sphingomyelin synthase 2 (SMS2) in anti-dsDNA GC B cells induces apoptosis by directly activating protein kinase C δ (PKCδ)'s pro-apoptotic activity. This tolerance mechanism prevents lupus autoimmunity in C57/BL6 mice and can be stimulated pharmacologically to inhibit lupus pathogenesis in lupus-prone NZBWF1 mice. Patients with lupus consistently have substantially reduced SMS2 expression in B cells and to an even greater extent in autoimmune-prone, age-associated B cells, suggesting that patients with lupus have insufficient SMS2-regulated B cell tolerance.
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Affiliation(s)
- Peiqi Ou
- Program in Molecular and Cellular Biology, The School of Graduate Studies, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Albert Stanek
- Department of Surgery, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Zack Huan
- Department of Cell Biology, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Christopher A J Roman
- Department of Cell Biology, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA.
| | - Chongmin Huan
- Department of Surgery, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA; Department of Cell Biology, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA.
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Olona A, Hateley C, Muralidharan S, Wenk MR, Torta F, Behmoaras J. Sphingolipid metabolism during Toll-like receptor 4 (TLR4)-mediated macrophage activation. Br J Pharmacol 2021; 178:4575-4587. [PMID: 34363204 DOI: 10.1111/bph.15642] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/18/2021] [Accepted: 07/27/2021] [Indexed: 12/14/2022] Open
Abstract
Macrophage activation in response to stimulation of Toll-like receptor 4 (TLR4) provides a paradigm for investigating energy metabolism that regulates the inflammatory response. TLR4-mediated pro-inflammatory macrophage activation is characterized by increased glycolysis and altered mitochondrial metabolism, supported by selective amino acid uptake and/or usage. Fatty acid metabolism remains as a highly complex rewiring that accompanies classical macrophage activation. TLR4 activation leads to de novo synthesis of fatty acids, which flux into sphingolipids, complex lipids that form the building blocks of eukaryotic cell membranes and regulate cell function. Here, we review the importance of TLR4-mediated de novo synthesis of membrane sphingolipids in macrophages. We first highlight fatty acid metabolism during TLR4-driven macrophage immunometabolism. We then focus on the temporal dynamics of sphingolipid biosynthesis and emphasize the modulatory role of some sphingolipid species (i.e. sphingomyelins, ceramides and glycosphingolipids) on the pro-inflammatory and pro-resolution phases of LPS/TLR4 activation in macrophages.
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Affiliation(s)
- Antoni Olona
- Faculty of Medicine, Imperial College London, Hammersmith Hospital, London, UK
| | - Charlotte Hateley
- Faculty of Medicine, Imperial College London, Hammersmith Hospital, London, UK
| | | | - Markus R Wenk
- SLING, Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Federico Torta
- SLING, Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jacques Behmoaras
- Faculty of Medicine, Imperial College London, Hammersmith Hospital, London, UK.,Programme in Cardiovascular and Metabolic Disorders and Centre for Computational Biology, Duke-NUS Medical School Singapore, Republic of Singapore
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46
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Köhler N, Rose TD, Falk L, Pauling JK. Investigating Global Lipidome Alterations with the Lipid Network Explorer. Metabolites 2021; 11:metabo11080488. [PMID: 34436429 PMCID: PMC8398636 DOI: 10.3390/metabo11080488] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 11/18/2022] Open
Abstract
Lipids play an important role in biological systems and have the potential to serve as biomarkers in medical applications. Advances in lipidomics allow identification of hundreds of lipid species from biological samples. However, a systems biological analysis of the lipidome, by incorporating pathway information remains challenging, leaving lipidomics behind compared to other omics disciplines. An especially uncharted territory is the integration of statistical and network-based approaches for studying global lipidome changes. Here we developed the Lipid Network Explorer (LINEX), a web-tool addressing this gap by providing a way to visualize and analyze functional lipid metabolic networks. It utilizes metabolic rules to match biochemically connected lipids on a species level and combine it with a statistical correlation and testing analysis. Researchers can customize the biochemical rules considered, to their tissue or organism specific analysis and easily share them. We demonstrate the benefits of combining network-based analyses with statistics using publicly available lipidomics data sets. LINEX facilitates a biochemical knowledge-based data analysis for lipidomics. It is availableas a web-application and as a publicly available docker container.
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Molecular mechanism associated with the use of magnetic fermentation in modulating the dietary lipid composition and nutritional quality of goat milk. Food Chem 2021; 366:130554. [PMID: 34284188 DOI: 10.1016/j.foodchem.2021.130554] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/13/2021] [Accepted: 07/05/2021] [Indexed: 02/07/2023]
Abstract
Standard fermentation (SF) mainly affected the metabolism of glycerophospholipid and sphingolipid, and increased the total lipid content of goat milk. Content of total lipid was decreased by magnetic fermentation compared with SF, mainly due to triacylglycerol and diacylglycerol. Comprehensive characteristic of lipids dynamic changes during standard and magnetic fermentation was performed using high-throughput quantitative lipidomics. Totally, 488 lipid molecular species covering 12 subclasses were detected, and triacylglycerol was the highest levels, followed by diacylglycerol and phosphoethanolamine in the whole fermentation stage. Specifically, except for ceramide and simple Glc series, the content of all polar lipids in SF was dropped and neutral lipids subjoined. Compared with SF, the decrease of triacylglycerol (1752.47 to 784.78 μg/mL), diacylglycerol (60.36 to 24.89 μg/mL) and simple Glc series (4.36 to 2.40 μg/mL) were observed, while ceramide (6.54 to 25.87 μg/mL) increased, suggesting magnetic fermentation as effective approach to potentially improve the nutritional of goat milk.
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Engelmann C, Clària J, Szabo G, Bosch J, Bernardi M. Pathophysiology of decompensated cirrhosis: Portal hypertension, circulatory dysfunction, inflammation, metabolism and mitochondrial dysfunction. J Hepatol 2021; 75 Suppl 1:S49-S66. [PMID: 34039492 PMCID: PMC9272511 DOI: 10.1016/j.jhep.2021.01.002] [Citation(s) in RCA: 135] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 02/07/2023]
Abstract
Patients with acutely decompensated cirrhosis have a dismal prognosis and frequently progress to acute-on-chronic liver failure, which is characterised by hepatic and extrahepatic organ failure(s). The pathomechanisms involved in decompensation and disease progression are still not well understood, and as specific disease-modifying treatments do not exist, research to identify novel therapeutic targets is of the utmost importance. This review amalgamates the latest knowledge on disease mechanisms that lead to tissue injury and extrahepatic organ failure - such as systemic inflammation, mitochondrial dysfunction, oxidative stress and metabolic changes - and marries these with the classical paradigms of acute decompensation to form a single paradigm. With this detailed breakdown of pathomechanisms, we identify areas for future research. Novel disease-modifying strategies that break the vicious cycle are urgently required to improve patient outcomes.
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Affiliation(s)
- Cornelius Engelmann
- Department of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Berlin, Germany; Institute for Liver and Digestive Health, University College London, London, United Kingdom; Section Hepatology, Clinic for Gastroenterology and Rheumatology, University Hospital Leipzig, Leipzig, Germany; Berlin Institute of Health (BIH), Berlin, Germany.
| | - Joan Clària
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain,Biochemistry and Molecular Genetics Service, Hospital ClínicIDIBAPS and CIBERehd, Spain,Department of Biomedical Sciences, University of Barcelona, Barcelona, Spain
| | - Gyongyi Szabo
- Department of Medicine, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Jaume Bosch
- IDIBAPS and CIBERehd, University of Barcelona, Barcelona, Spain,Department for Biomedical Research (DBMR), Bern University, Bern, Switzerland
| | - Mauro Bernardi
- Department of Medical and Surgical Sciences; Alma Mater Studiorum – University of Bologna; Italy
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Lipidomics study of plasma from patients suggest that ALS and PLS are part of a continuum of motor neuron disorders. Sci Rep 2021; 11:13562. [PMID: 34193885 PMCID: PMC8245424 DOI: 10.1038/s41598-021-92112-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 12/14/2020] [Indexed: 12/04/2022] Open
Abstract
Motor neuron disorders (MND) include a group of pathologies that affect upper and/or lower motor neurons. Among them, amyotrophic lateral sclerosis (ALS) is characterized by progressive muscle weakness, with fatal outcomes only in a few years after diagnosis. On the other hand, primary lateral sclerosis (PLS), a more benign form of MND that only affects upper motor neurons, results in life-long progressive motor dysfunction. Although the outcomes are quite different, ALS and PLS present with similar symptoms at disease onset, to the degree that both disorders could be considered part of a continuum. These similarities and the lack of reliable biomarkers often result in delays in accurate diagnosis and/or treatment. In the nervous system, lipids exert a wide variety of functions, including roles in cell structure, synaptic transmission, and multiple metabolic processes. Thus, the study of the absolute and relative concentrations of a subset of lipids in human pathology can shed light into these cellular processes and unravel alterations in one or more pathways. In here, we report the lipid composition of longitudinal plasma samples from ALS and PLS patients initially, and after 2 years following enrollment in a clinical study. Our analysis revealed common aspects of these pathologies suggesting that, from the lipidomics point of view, PLS and ALS behave as part of a continuum of motor neuron disorders.
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LXR directly regulates glycosphingolipid synthesis and affects human CD4+ T cell function. Proc Natl Acad Sci U S A 2021; 118:2017394118. [PMID: 34006637 DOI: 10.1073/pnas.2017394118] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The liver X receptor (LXR) is a key transcriptional regulator of cholesterol, fatty acid, and phospholipid metabolism. Dynamic remodeling of immunometabolic pathways, including lipid metabolism, is a crucial step in T cell activation. Here, we explored the role of LXR-regulated metabolic processes in primary human CD4+ T cells and their role in controlling plasma membrane lipids (glycosphingolipids and cholesterol), which strongly influence T cell immune signaling and function. Crucially, we identified the glycosphingolipid biosynthesis enzyme glucosylceramide synthase as a direct transcriptional LXR target. LXR activation by agonist GW3965 or endogenous oxysterol ligands significantly altered the glycosphingolipid:cholesterol balance in the plasma membrane by increasing glycosphingolipid levels and reducing cholesterol. Consequently, LXR activation lowered plasma membrane lipid order (stability), and an LXR antagonist could block this effect. LXR stimulation also reduced lipid order at the immune synapse and accelerated activation of proximal T cell signaling molecules. Ultimately, LXR activation dampened proinflammatory T cell function. Finally, compared with responder T cells, regulatory T cells had a distinct pattern of LXR target gene expression corresponding to reduced lipid order. This suggests LXR-driven lipid metabolism could contribute to functional specialization of these T cell subsets. Overall, we report a mode of action for LXR in T cells involving the regulation of glycosphingolipid and cholesterol metabolism and demonstrate its relevance in modulating T cell function.
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