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Peeters R, Jellusova J. Lipid metabolism in B cell biology. Mol Oncol 2024; 18:1795-1813. [PMID: 38013654 PMCID: PMC11223608 DOI: 10.1002/1878-0261.13560] [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: 08/03/2023] [Revised: 10/30/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023] Open
Abstract
In recent years, the field of immunometabolism has solidified its position as a prominent area of investigation within the realm of immunological research. An expanding body of scientific literature has unveiled the intricate interplay between energy homeostasis, signalling molecules, and metabolites in relation to fundamental aspects of our immune cells. It is now widely accepted that disruptions in metabolic equilibrium can give rise to a myriad of pathological conditions, ranging from autoimmune disorders to cancer. Emerging evidence, although sometimes fragmented and anecdotal, has highlighted the indispensable role of lipids in modulating the behaviour of immune cells, including B cells. In light of these findings, this review aims to provide a comprehensive overview of the current state of knowledge regarding lipid metabolism in the context of B cell biology.
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Affiliation(s)
- Rens Peeters
- School of Medicine and Health, Institute of Clinical Chemistry and PathobiochemistryTechnical University of MunichGermany
- TranslaTUM, Center for Translational Cancer ResearchTechnical University of MunichGermany
| | - Julia Jellusova
- School of Medicine and Health, Institute of Clinical Chemistry and PathobiochemistryTechnical University of MunichGermany
- TranslaTUM, Center for Translational Cancer ResearchTechnical University of MunichGermany
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2
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Fan Q, Liang R, Chen M, Li Z, Tao X, Ren H, Sheng Y, Li J, Lin R, Zhao C, She G. Metabolic characteristics of evodiamine were associated with its hepatotoxicity via PPAR/PI3K/AKT/NF-кB/tight junction pathway-mediated apoptosis in zebrafish. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116448. [PMID: 38754199 DOI: 10.1016/j.ecoenv.2024.116448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/18/2024]
Abstract
Evodiae Fructus (EF), an herbal medicine, possesses remarkable anti-inflammatory and analgesic properties. It exhibits insecticidal activity as a potent insecticide candidate. However, the toxic characteristics of EF and the underlying mechanisms have not been comprehensively elucidated comprehensively. Thus, we comprehensively explored the toxic components of EF and established the relationship between the therapeutic and toxic effects of EF, encouraging its therapeutic use. We found that evodiamine (EVO), one of the main ingredients of EF, can truly reflect its analgesic properties. In phenotype observation trials, low doses of EVO (< 35 ng/mL) exhibited distinct analgesic activity without any adverse effects in zebrafish. However, EVO dose-dependently led to gross morphological abnormalities in the liver, followed by pericardial edema, and increased myocardial concentrations. Furthermore, the toxic effects of EVO decreased after processing in liver microsomes but increased after administering CYP450 inhibitors in zebrafish, highlighting the prominent effect of CYP450s in EVO-mediated hepatotoxicity. EVO significantly changed the expression of genes enriched in multiple pathways and biological processes, including lipid metabolism, inflammatory response, tight junction damage, and cell apoptosis. Importantly, the PPAR/PI3K/AKT/NF-кB/tight junction-mediated apoptosis pathway was confirmed as a critical functional signaling pathway inducing EVO-mediated hepatotoxicity. This study provided a typical example of the overall systematic evaluation of traditional Chinese medicine (TCM) and its active ingredients with significant therapeutic effects and simultaneous toxicities, especially metabolic toxicities.
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Affiliation(s)
- Qiqi Fan
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Ruiqiang Liang
- National Institutes for Food and Drug Control, Beijing 100050, China
| | - Meilin Chen
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Zhiqi Li
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Xiaoyu Tao
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Hongmin Ren
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Yuhan Sheng
- Beijing University of Chinese Medicine, Beijing 100102,China
| | - Jiaqi Li
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Ruichao Lin
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China.
| | - Chongjun Zhao
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China.
| | - Gaimei She
- Beijing University of Chinese Medicine, Beijing 100102,China.
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3
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Zeljkovic A, Vekic J, Stefanovic A. Obesity and dyslipidemia in early life: Impact on cardiometabolic risk. Metabolism 2024; 156:155919. [PMID: 38653373 DOI: 10.1016/j.metabol.2024.155919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/19/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Childhood obesity with its growing prevalence worldwide presents one of the most important health challenges nowadays. Multiple mechanisms are involved in the development of this condition, as well as in its associations with various cardiometabolic complications, such as insulin resistance, diabetes, metabolic dysfunction-associated steatotic liver disease and cardiovascular diseases. Recent findings suggest that childhood obesity and associated dyslipidemia at least partly originate from epigenetic modifications that take place in the earliest periods of life, namely prenatal and perinatal periods. Hence, alterations of maternal metabolism could be fundamentally responsible for fetal and neonatal metabolic programming and consequently, for metabolic health of offspring in later life. In this paper, we will review recent findings on the associations among intrauterine and early postnatal exposure to undesirable modulators of metabolism, development of childhood obesity and later cardiometabolic complications. Special attention will be given to maternal dyslipidemia as a driven force for undesirable epigenetic modulations in offspring. In addition, newly proposed lipid biomarkers of increased cardiometabolic risk in obese children and adolescents will be analyzed, with respect to their predictive potential and clinical applicability.
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Affiliation(s)
- Aleksandra Zeljkovic
- Department of Medical Biochemistry, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia
| | - Jelena Vekic
- Department of Medical Biochemistry, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia.
| | - Aleksandra Stefanovic
- Department of Medical Biochemistry, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia
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4
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Zheng L, Tian S, Yang C, Li B, Jia G, Liu Y, Sun R, Wang X, Deng J, Zhang M, Cui L, Guo C, Zhou X, Leung PSC, Bowlus CL, Gershwin ME, Shang Y, Han Y. Hypercholesterolemia Is Associated With Dysregulation of Lipid Metabolism and Poor Prognosis in Primary Biliary Cholangitis. Clin Gastroenterol Hepatol 2024; 22:1265-1274.e19. [PMID: 38354969 DOI: 10.1016/j.cgh.2024.01.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 01/12/2024] [Accepted: 01/23/2024] [Indexed: 02/16/2024]
Abstract
BACKGROUND & AIMS Hypercholesterolemia is frequently diagnosed in patients with primary biliary cholangitis (PBC). However, its association with the prognosis and lipid metabolism is unknown. In this study, we aimed to investigate the prognostic value of baseline total cholesterol (TC) levels in PBC and characterized the associated lipid metabolism. METHODS Five hundred and thirty-one patients with PBC without prior cirrhosis-related complications were randomly divided into the derivation and validation cohorts at a ratio of 7:3. Complete clinical data were obtained and analyzed. The endpoints were defined as liver-related death, liver transplantation, and cirrhosis-related complications. Lipidomics was performed in 89 patients and 28 healthy controls. RESULTS Baseline TC was independently associated with poor liver-related outcomes, and adjusted C-statistics were 0.80 (95% confidence interval [CI]: 0.74-0.85) and 0.88 (95% CI: 0.78-0.91) in the derivation and validation cohorts, respectively. The predictive ability of TC for disease outcomes was stable over time and comparable with the Globe score. The 200 mg/dL cut-off optimally divided patients into low- and high-TC groups. A combination of TC and Globe score provided a more accurate stratification of patients into risk subgroups. Lipidomics indicated an up-regulation of lipid families in high-TC patients. Pathway analysis of 66 up-regulated lipids revealed the dysregulation of glycerophospholipid and sphingolipid metabolism in high-TC patients, which were associated with poor liver-related outcomes. CONCLUSIONS Our results indicate that patients with PBC having baseline TC levels above 200 mg/dL have unique lipidome characteristics and are at a higher risk of poor liver-related outcomes.
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Affiliation(s)
- Linhua Zheng
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Siyuan Tian
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Chunmei Yang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Bo Li
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Gui Jia
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Yansheng Liu
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Ruiqing Sun
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Xiufang Wang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Juan Deng
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Miao Zhang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Lina Cui
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Changcun Guo
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Xinmin Zhou
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Patrick S C Leung
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Davis, California
| | - Christopher L Bowlus
- Division of Gastroenterology and Hepatology, University of California at Davis School of Medicine, Davis, California
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Davis, California.
| | - Yulong Shang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China.
| | - Ying Han
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China.
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Guo Y, Luo L, Zhu J, Li C. Advance in Multi-omics Research Strategies on Cholesterol Metabolism in Psoriasis. Inflammation 2024; 47:839-852. [PMID: 38244176 DOI: 10.1007/s10753-023-01961-9] [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: 09/24/2023] [Revised: 11/29/2023] [Accepted: 12/25/2023] [Indexed: 01/22/2024]
Abstract
The skin is a complex and dynamic organ where homeostasis is maintained through the intricate interplay between the immune system and metabolism, particularly cholesterol metabolism. Various factors such as cytokines, inflammatory mediators, cholesterol metabolites, and metabolic enzymes play crucial roles in facilitating these interactions. Dysregulation of this delicate balance contributes to the pathogenic pathways of inflammatory skin conditions, notably psoriasis. In this article, we provide an overview of omics biomarkers associated with psoriasis in relation to cholesterol metabolism. We explore multi-omics approaches that reveal the communication between immunometabolism and psoriatic inflammation. Additionally, we summarize the use of multi-omics strategies to uncover the complexities of multifactorial and heterogeneous inflammatory diseases. Finally, we highlight potential future perspectives related to targeted drug therapies and research areas that can advance precise medicine. This review aims to serve as a valuable resource for those investigating the role of cholesterol metabolism in psoriasis.
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Affiliation(s)
- Youming Guo
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, Jiangsu, China
| | - Lingling Luo
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Jing Zhu
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Chengrang Li
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China.
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, Jiangsu, China.
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6
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Jiang G, Li J, Niu S, Dong R, Chen Y, Bi W. LY86 facilitates ox-LDL-induced lipid accumulation in macrophages by upregulating SREBP2/HMGCR expression. BMC Cardiovasc Disord 2024; 24:289. [PMID: 38822281 PMCID: PMC11140969 DOI: 10.1186/s12872-024-03957-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 05/23/2024] [Indexed: 06/02/2024] Open
Abstract
LY86, also known as MD1, has been implicated in various pathophysiological processes including inflammation, obesity, insulin resistance, and immunoregulation. However, the role of LY86 in cholesterol metabolism remains incompletely understood. Several studies have reported significant up-regulation of LY86 mRNA in atherosclerosis; nevertheless, the regulatory mechanism by which LY86 is involved in this disease remains unclear. In this study, we aimed to investigate whether LY86 affects ox-LDL-induced lipid accumulation in macrophages. Firstly, we confirmed that LY86 is indeed involved in the process of atherosclerosis and found high expression levels of LY86 in human atherosclerotic plaque tissue. Furthermore, our findings suggest that LY86 may mediate intracellular lipid accumulation induced by ox-LDL through the SREBP2/HMGCR pathway. This mechanism could be associated with increased cholesterol synthesis resulting from enhanced endoplasmic reticulum stress response.
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Affiliation(s)
- Guangwei Jiang
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
- Department of Vascular Surgery, Hebei General Hospital, Shijiazhuang, 050000, China
| | - Jikuan Li
- Department of Vascular Surgery, Hebei General Hospital, Shijiazhuang, 050000, China
| | - Shuai Niu
- Department of Vascular Surgery, Hebei General Hospital, Shijiazhuang, 050000, China
| | - Ruoyu Dong
- Department of Vascular Surgery, Hebei General Hospital, Shijiazhuang, 050000, China
| | - Yuyan Chen
- The Second Department of rehabilitation Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Wei Bi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China.
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7
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Salgado B, Izquierdo B, Zapata A, Sastre I, Kristen H, Terreros J, Mejías V, Bullido MJ, Aldudo J. Cholesterol Modulation Attenuates the AD-like Phenotype Induced by Herpes Simplex Virus Type 1 Infection. Biomolecules 2024; 14:603. [PMID: 38786010 PMCID: PMC11117519 DOI: 10.3390/biom14050603] [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: 04/15/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024] Open
Abstract
Cholesterol, a crucial component of cell membranes, influences various biological processes, including membrane trafficking, signal transduction, and host-pathogen interactions. Disruptions in cholesterol homeostasis have been linked to congenital and acquired conditions, including neurodegenerative disorders such as Alzheimer's disease (AD). Previous research from our group has demonstrated that herpes simplex virus type I (HSV-1) induces an AD-like phenotype in several cell models of infection. This study explores the interplay between cholesterol and HSV-1-induced neurodegeneration. The impact of cholesterol was determined by modulating its levels with methyl-beta-cyclodextrin (MβCD) using the neuroblastoma cell lines SK-N-MC and N2a. We have found that HSV-1 infection triggers the intracellular accumulation of cholesterol in structures resembling endolysosomal/autophagic compartments, a process reversible upon MβCD treatment. Moreover, MβCD exhibits inhibitory effects at various stages of HSV-1 infection, underscoring the importance of cellular cholesterol levels, not only in the viral entry process but also in subsequent post-entry stages. MβCD also alleviated several features of AD-like neurodegeneration induced by viral infection, including lysosomal impairment and intracellular accumulation of amyloid-beta peptide (Aβ) and phosphorylated tau. In conclusion, these findings highlight the connection between cholesterol, neurodegeneration, and HSV-1 infection, providing valuable insights into the underlying mechanisms of AD.
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Affiliation(s)
- Blanca Salgado
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
- Centro de Investigacion Biomedica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
| | - Beatriz Izquierdo
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
- Hospital Clinico San Carlos, 28040 Madrid, Spain
| | - Alba Zapata
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
| | - Isabel Sastre
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
- Centro de Investigacion Biomedica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
| | - Henrike Kristen
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
| | - Julia Terreros
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
| | - Víctor Mejías
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
- Institute for Bioengineering of Catalunya (IBEC), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - María J Bullido
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
- Centro de Investigacion Biomedica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
- Hospital La Paz Institute for Health Research, IdiPAZ, 28046 Madrid, Spain
| | - Jesús Aldudo
- Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, Universidad Autonoma de Madrid, 28049 Madrid, Spain
- Centro de Investigacion Biomedica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
- Hospital La Paz Institute for Health Research, IdiPAZ, 28046 Madrid, Spain
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8
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Rueda Huélamo MA, Martínez Perlado A, Consoli V, García-Tejedor A, Haros CM, Laparra Llopis JM. Improvement of hepatic innate immunity in chemically-injured livers to develop hepatocarcinoma by a serine type-protease inhibitors enriched extract from Chenopodium quinoa. Food Funct 2024; 15:3600-3614. [PMID: 38469889 DOI: 10.1039/d3fo03083k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Food ingredients have critical effects on the maturation and development of the immune system, which innate - lymphoid (ILCs) and myeloid - cells play key roles as important regulators of energy storage and hepatic fat accumulation. Therefore, the objective of this study is to define potential links between a dietary immunonutritional induction of the selective functional differentiation of monocytes-derived macrophages, ILCs and lipid homeostasis in hepatocarcinoma (HCC)-developing mice. Hepatic chemically injured (diethylnitrosamine/thiacetamide) Rag2-/- and Rag2-/-Il2-/- mice were administered with serine-type protease inhibitors (SETIs) obtained from Chenopodium quinoa. Early HCC-driven immunometabolic imbalances (infiltrated macrophages, glucose homeostasis, hepatic lipid profile, ILCs expansion, inflammatory conditions, microbiota) in animals put under a high-fat diet for 2 weeks were assessed. It was also approached the potential of SETIs to cause functional adaptations of the bioenergetics of human macrophage-like cells (hMLCs) in vitro conditioning their capacity to accumulate fat. It is showed that Rag2-/-Il2-/- mice, lacking ILCs, are resistant to the SETIs-induced hepatic macrophages (CD68+F4/80+) activation. Feeding SETIs to Rag2-/- mice, carrying ILCs, promoted the expansion towards ILC3s (CD117+Nkp46+CD56+) and reduced that of ILC2s (CD117+KLRG1+) into livers. In vitro studies demonstrate that hMLCs, challenged to SETIs, develop a similar phenotype of that found in mice and bioenergetic adaptations leading to increased lipolysis. It is concluded that SETIs promote liver macrophage activation and ILCs adaptations to ameliorate HCC-driven immunometabolic imbalances.
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Affiliation(s)
- Maria Alicia Rueda Huélamo
- Molecular Immunonutrition Group, Madrid Institute for Advanced Studies in Food (IMDEA-Food), Madrid, Spain.
| | - Alba Martínez Perlado
- Molecular Immunonutrition Group, Madrid Institute for Advanced Studies in Food (IMDEA-Food), Madrid, Spain.
| | - Valeria Consoli
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 6, Catania 95125, Italy
| | - Aurora García-Tejedor
- Bioactivity and Nutritional Immunology Group (BIOINUT), Faculty of Health Sciences, Universidad Internacional de Valencia-VIU, Pintor Sorolla 21, 46002 Valencia, Spain
| | - Claudia Monika Haros
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
| | - José Moisés Laparra Llopis
- Molecular Immunonutrition Group, Madrid Institute for Advanced Studies in Food (IMDEA-Food), Madrid, Spain.
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9
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Montero-Vega MT, Matilla J, Bazán E, Reimers D, De Andrés-Martín A, Gonzalo-Gobernado R, Correa C, Urbano F, Gómez-Coronado D. Fluvastatin Converts Human Macrophages into Foam Cells with Increased Inflammatory Response to Inactivated Mycobacterium tuberculosis H37Ra. Cells 2024; 13:536. [PMID: 38534380 DOI: 10.3390/cells13060536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
Cholesterol biosynthesis inhibitors (statins) protect hypercholesterolemic patients against developing active tuberculosis, suggesting that these drugs could help the host to control the pathogen at the initial stages of the disease. This work studies the effect of fluvastatin on the early response of healthy peripheral blood mononuclear cells (PBMCs) to inactivated Mycobacterium tuberculosis (Mtb) H37Ra. We found that in fluvastatin-treated PBMCs, most monocytes/macrophages became foamy cells that overproduced NLRP3 inflammasome components in the absence of immune stimulation, evidencing important cholesterol metabolism/immunity connections. When both fluvastatin-treated and untreated PBMCs were exposed to Mtb H37Ra, a small subset of macrophages captured large amounts of bacilli and died, concentrating the bacteria in necrotic areas. In fluvastatin-untreated cultures, most of the remaining macrophages became epithelioid cells that isolated these areas of cell death in granulomatous structures that barely produced IFNγ. By contrast, in fluvastatin-treated cultures, foamy macrophages surrounded the accumulated bacteria, degraded them, markedly activated caspase-1 and elicited a potent IFNγ/cytotoxic response. In rabbits immunized with the same bacteria, fluvastatin increased the tuberculin test response. We conclude that statins may enhance macrophage efficacy to control Mtb, with the help of adaptive immunity, offering a promising tool in the design of alternative therapies to fight tuberculosis.
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Affiliation(s)
- María Teresa Montero-Vega
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Joaquín Matilla
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Eulalia Bazán
- Servicio de Neurobiología-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Diana Reimers
- Servicio de Neurobiología-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Ana De Andrés-Martín
- Servicio de Inmunología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Rafael Gonzalo-Gobernado
- Departamento de Biología Molecular y Celular, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain
| | - Carlos Correa
- Unidad de Cirugía Experimental y Animalario, Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Francisco Urbano
- Servicio Interdepartamental de Investigación (SIdI), Facultad de Medicina, Universidad Autónoma, 28029 Madrid, Spain
| | - Diego Gómez-Coronado
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
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10
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Goldberg G, Coelho L, Mo G, Adang LA, Patne M, Chen Z, Garcia-Bassets I, Mesci P, Muotri AR. TREX1 is required for microglial cholesterol homeostasis and oligodendrocyte terminal differentiation in human neural assembloids. Mol Psychiatry 2024; 29:566-579. [PMID: 38129659 PMCID: PMC11153041 DOI: 10.1038/s41380-023-02348-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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
Three Prime Repair Exonuclease 1 (TREX1) gene mutations have been associated with Aicardi-Goutières Syndrome (AGS) - a rare, severe pediatric autoimmune disorder that primarily affects the brain and has a poorly understood etiology. Microglia are brain-resident macrophages indispensable for brain development and implicated in multiple neuroinflammatory diseases. However, the role of TREX1 - a DNase that cleaves cytosolic nucleic acids, preventing viral- and autoimmune-related inflammatory responses - in microglia biology remains to be elucidated. Here, we leverage a model of human embryonic stem cell (hESC)-derived engineered microglia-like cells, bulk, and single-cell transcriptomics, optical and transmission electron microscopy, and three-month-old assembloids composed of microglia and oligodendrocyte-containing organoids to interrogate TREX1 functions in human microglia. Our analyses suggest that TREX1 influences cholesterol metabolism, leading to an active microglial morphology with increased phagocytosis in the absence of TREX1. Notably, regulating cholesterol metabolism with an HMG-CoA reductase inhibitor, FDA-approved atorvastatin, rescues these microglial phenotypes. Functionally, TREX1 in microglia is necessary for the transition from gliogenic intermediate progenitors known as pre-oligodendrocyte precursor cells (pre-OPCs) to precursors of the oligodendrocyte lineage known as OPCs, impairing oligodendrogenesis in favor of astrogliogenesis in human assembloids. Together, these results suggest routes for therapeutic intervention in pathologies such as AGS based on microglia-specific molecular and cellular mechanisms.
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Affiliation(s)
- Gabriela Goldberg
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
- Department of Cellular & Molecular Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
- Biomedical Sciences Graduate Program, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Luisa Coelho
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Guoya Mo
- Universal Sequencing Technology Corporation, Carlsbad, CA, 92011, USA
| | - Laura A Adang
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Meenakshi Patne
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Zhoutao Chen
- Universal Sequencing Technology Corporation, Carlsbad, CA, 92011, USA
| | | | - Pinar Mesci
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA.
- Axiom Space, Houston, TX, 77058, USA.
| | - Alysson R Muotri
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA.
- Department of Cellular & Molecular Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA.
- Kavli Institute for Brain and Mind, University of California San Diego, La Jolla, CA, 92093, USA.
- Center for Academic Research and Training in Anthropogeny (CARTA) and Archealization (ArchC), University of California San Diego, La Jolla, CA, 92093, USA.
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11
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Chen SP, Blakney AK. Immune response to the components of lipid nanoparticles for ribonucleic acid therapeutics. Curr Opin Biotechnol 2024; 85:103049. [PMID: 38118363 DOI: 10.1016/j.copbio.2023.103049] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 11/06/2023] [Accepted: 11/26/2023] [Indexed: 12/22/2023]
Abstract
Ribonucleic acid therapeutics have advantages over biologics and small molecules, including lower safety risks, cheaper costs, and extensive targeting flexibility, which is rapidly fueling the expansion of the field. This is made possible by breakthroughs in the field of drug delivery, wherein lipid nanoparticles (LNPs) are one of the most clinically advanced systems. LNP formulations that are currently approved for clinical use typically contain an ionizable cationic lipid, a phospholipid, cholesterol, and a polyethylene glycol-lipid; each contributes to the stability and/or effectiveness of LNPs. In this review, we discuss the immunomodulatory effects associated with each of the lipid components. We highlight several studies in which the components of LNPs have been implicated in cellular sensing and explore the pathways involved.
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Affiliation(s)
- Sunny P Chen
- School of Biomedical Engineering, University of British Columbia, Vancouver V6T 1Z3, Canada; Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Anna K Blakney
- School of Biomedical Engineering, University of British Columbia, Vancouver V6T 1Z3, Canada; Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, Canada.
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12
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Guo J, Chen S, Zhang Y, Liu J, Jiang L, Hu L, Yao K, Yu Y, Chen X. Cholesterol metabolism: physiological regulation and diseases. MedComm (Beijing) 2024; 5:e476. [PMID: 38405060 PMCID: PMC10893558 DOI: 10.1002/mco2.476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 02/27/2024] Open
Abstract
Cholesterol homeostasis is crucial for cellular and systemic function. The disorder of cholesterol metabolism not only accelerates the onset of cardiovascular disease (CVD) but is also the fundamental cause of other ailments. The regulation of cholesterol metabolism in the human is an extremely complex process. Due to the dynamic balance between cholesterol synthesis, intake, efflux and storage, cholesterol metabolism generally remains secure. Disruption of any of these links is likely to have adverse effects on the body. At present, increasing evidence suggests that abnormal cholesterol metabolism is closely related to various systemic diseases. However, the exact mechanism by which cholesterol metabolism contributes to disease pathogenesis remains unclear, and there are still unknown factors. In this review, we outline the metabolic process of cholesterol in the human body, especially reverse cholesterol transport (RCT). Then, we discuss separately the impact of abnormal cholesterol metabolism on common diseases and potential therapeutic targets for each disease, including CVD, tumors, neurological diseases, and immune system diseases. At the end of this review, we focus on the effect of cholesterol metabolism on eye diseases. In short, we hope to provide more new ideas for the pathogenesis and treatment of diseases from the perspective of cholesterol.
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Affiliation(s)
- Jiarui Guo
- Eye Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Silong Chen
- Eye Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Ying Zhang
- Eye Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
- Institute of Translational MedicineZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Jinxia Liu
- Eye Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Luyang Jiang
- Eye Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Lidan Hu
- National Clinical Research Center for Child HealthThe Children's HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Ke Yao
- Eye Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Yibo Yu
- Eye Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Xiangjun Chen
- Eye Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
- Institute of Translational MedicineZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
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13
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Sachan A, Thungapathra M, Kaur H, Prasad KK, Jassal RS, Sharma V, Jena A, Singh AK, Vaiphei K, Samanta J, Sharma AK, Bhadada SK, Dutta U. Comprehensive assessment of nutritional and functional status of patients with ulcerative colitis and their impact on quality of life. Indian J Gastroenterol 2024; 43:254-263. [PMID: 38396280 DOI: 10.1007/s12664-024-01539-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/22/2024] [Indexed: 02/25/2024]
Abstract
INTRODUCTION Patients with ulcerative colitis (UC) are likely to have poor nutritional intake and increased gut losses. This study was designed to study the prevalence and predictors of nutritional deficiencies in patients with UC and their impact on the quality of life (QOL). METHODS A prospective study was conducted among consenting patients with UC (cases) and healthy relatives of the cases (controls) visiting a university teaching hospital. They were assessed for clinical, demographic, endoscopic (Mayo score) and histological profile (Robart's score). They were assessed for the presence of macronutrient and micronutrient deficiency, anthropometry, functional status (muscle strength by dynamometer and sit-to-stand test) and the quality of life (short inflammatory bowel disease questionnaire [SIBDQ]). A SIBDQ score of ≤ 50 was considered poor QOL. RESULTS We studied 126 cases and 57 healthy controls (age [mean ± SD] 37.7 ± 13.2 years vs. 34.40 ± 11.05 years; [p = 0.10] females [38.1% vs. 38.7%]; p = 0.94). Cases more often were underweight (28% vs. 3.5%; p < 0.001), had low mid arm circumference (45% vs. 12%; p < 0.0001), lower functional status in the form of weaker hand grip strength (67% vs. 45.6%; p = 0.007) and weaker lower limb strength (80% vs. 42%; p < 0.0001). Cases more often had the evidence of macronutrient deficiencies: total serum protein deficiency (31% vs. 3.5%; p < 0.0001), serum albumin deficiency (25.4% vs. 0.00%; p < 0.0001) and cholesterol deficiency (63% vs. 28%; p < 0.0001). Micronutrient deficiencies were highly prevalent among cases: calcium (44%), phosphate (21%), magnesium (11%), zinc (76%), iron (87%), folate (16%), vitamin B12 (10%) and vitamin D (81%). Most cases had a poor quality of life (85/126; 67.5%). Factors associated with poor QOL were low hemoglobin, serum albumin, zinc and vitamin D levels and histologically active disease. On multi-variate analysis, low vitamin D levels (odds ratio [OR] = 6.1; 95% confidence interval [CI]: 1.9-19.7) and histologically active disease (OR = 4.0; 95% CI: 1.6-9.9) were identified as independent predictors of poor QOL. CONCLUSIONS Macronutrient deficiency, micronutrient deficiency, lower functional status and poorer QOL are highly prevalent among patients with UC. The independent predictors of poor QOL were histologically active disease and low serum vitamin D levels. Identifying and correcting the deficiencies may help in improving the QOL of patients with UC.
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Affiliation(s)
- Anurag Sachan
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - M Thungapathra
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Harmandeep Kaur
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Kaushal Kishor Prasad
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Ravjeet Singh Jassal
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Vishal Sharma
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Anuraag Jena
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Anupam Kumar Singh
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Kim Vaiphei
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Jayanta Samanta
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Arun Kumar Sharma
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Sanjay Kumar Bhadada
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Usha Dutta
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160 012, India.
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14
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Zhan Y, Zhang J, Yang R, Deng Z, Chen S, Feng J, Wu J, Huang Q, Gu Y, Xie J. Blood glucose and lipids are associated with sarcoidosis: findings from observational and mendelian randomization studies. Respir Res 2024; 25:50. [PMID: 38254098 PMCID: PMC10804582 DOI: 10.1186/s12931-023-02663-4] [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: 11/27/2023] [Accepted: 12/29/2023] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Several researches have demonstrated that patients with sarcoidosis accompanied with the abnormality in blood glucose and/or lipids, however, the causal relationship between them remains uncertain. To elucidate the potential association and causality of blood glucose and lipids with sarcoidosis, we conducted a propensity score matching (PSM)-based observational study combined with mendelian randomization (MR) analysis. METHODS All subjects in this study were retrospectively collected from Tongji Hospital during 2010 and 2023. 1:1 PSM was employed to control the potential confounders as appropriate. Univariable and multivariable logistic regression analyses were performed to estimate the associations of sarcoidosis with fasting glucose, high density lipoprotein cholesterol (HDLC), low density lipoprotein cholesterol (LDLC), total cholesterol (TC), and total triglyceride (TG). The further subtype analysis was also conducted. Afterwards, a bidirectional MR analysis based on public data deeply explored the causality among the 5 candidate traits and sarcoidosis, for which the inverse-variance weighted (IVW) method was utilized as the main inferring approach. RESULTS In the observational study, a total number of 756 subjects were enrolled, with 162 sarcoidosis patients and 594 non-sarcoidosis participants, while 160 pairs of subjects were matched after PSM. Multivariable logistic regression analysis indicated that HDLC (OR: 0.151; 95% CI: 0.056-0.408; P < 0.001) and TC (OR: 3.942; 95% CI: 2.644-5.877; P < 0.001) were strongly associated with sarcoidosis. Subtype analysis showed that low HDLC was independently correlated to risk of lesions in bronchus and lungs, and mediastinal lymph nodes, while high TC was to cervical lymph nodes. In MR analysis, high fasting glucose, low HDLC, and high TC were identified as the causal factors of sarcoidosis. CONCLUSION HDLC and TC had the potential to influence the risk of sarcoidosis, which could be regarded as predictors and may provide new diagnostic and therapeutic targets for sarcoidosis.
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Affiliation(s)
- Yuan Zhan
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Jiaheng Zhang
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Ruonan Yang
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Zhesong Deng
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Shanshan Chen
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Jie Feng
- Department of Social Medicine and Health Management, School of Public Health, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jixing Wu
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Qian Huang
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Yiya Gu
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Jungang Xie
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
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15
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Vaitaitis G, Webb T, Webb C, Sharkey C, Sharkey S, Waid D, Wagner DH. Canine diabetes mellitus demonstrates multiple markers of chronic inflammation including Th40 cell increases and elevated systemic-immune inflammation index, consistent with autoimmune dysregulation. Front Immunol 2024; 14:1319947. [PMID: 38318506 PMCID: PMC10839093 DOI: 10.3389/fimmu.2023.1319947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/27/2023] [Indexed: 02/07/2024] Open
Abstract
Introduction Canine diabetes mellitus (CDM) is a relatively common endocrine disease in dogs. Many CDM clinical features resemble human type 1 diabetes mellitus (T1DM), but lack of autoimmune biomarkers makes calling the disease autoimmune controversial. Autoimmune biomarkers linking CDM and T1DM would create an alternative model for drug development impacting both human and canine disease. Methods We examined peripheral blood of diagnosed CDM dog patients comparing it to healthy control (HC) dogs. Dogs were recruited to a study at the Colorado State University Veterinary Teaching Hospital and blood samples collected for blood chemistry panels, complete blood counts (CBC), and immunologic analysis. Markers of disease progression such as glycated albumin (fructosamine, the canine equivalent of human HbA1c) and c-peptide were addressed. Results Significant differences in adaptive immune lymphocytes, innate immune macrophages/monocytes and neutrophils and differences in platelets were detected between CDM and HC based on CBC. Significant differences in serum glucose, cholesterol and the liver function enzyme alkaline phosphatase were also detected. A systemic immune inflammation index (SII) and chronic inflammation index (CII) as measures of dynamic changes in adaptive and innate cells between inflammatory and non-inflammatory conditions were created with highly significant differences between CDM and HC. Th40 cells (CD4+CD40+ T cells) that are demonstrably pathogenic in mouse T1DM and able to differentiate diabetic from non-diabetic subjects in human T1DM were significantly expanded in peripheral blood mononuclear cells. Conclusions Based on each clinical finding, CDM can be categorized as an autoimmune condition. The association of significantly elevated Th40 cells in CDM when compared to HC or to osteoarthritis, a chronic but non-autoimmune disease, suggests peripheral blood Th40 cell numbers as a biomarker that reflects CDM chronic inflammation. The differences in SII and CII further underscore those findings.
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Affiliation(s)
- Gisela Vaitaitis
- Department of Medicine, The University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Tracy Webb
- Department of Clinical Sciences, The Colorado State University Veterinary Teaching Hospital, Fort Collins, CO, United States
| | - Craig Webb
- Department of Clinical Sciences, The Colorado State University Veterinary Teaching Hospital, Fort Collins, CO, United States
| | - Christina Sharkey
- Department of Clinical Sciences, Montclaire Animal Clinic, Denver, CO, United States
| | - Steve Sharkey
- Department of Clinical Sciences, Montclaire Animal Clinic, Denver, CO, United States
| | - Dan Waid
- Op-T, LLC, Fitzsimmons Innovation Bioscience, Aurora, CO, United States
| | - David H. Wagner
- Department of Medicine, The University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Op-T, LLC, Fitzsimmons Innovation Bioscience, Aurora, CO, United States
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16
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Liang Y, Chen Q, Chang Y, Han J, Yan J, Chen Z, Zhou J. Critical role of FGF21 in diabetic kidney disease: from energy metabolism to innate immunity. Front Immunol 2024; 15:1333429. [PMID: 38312833 PMCID: PMC10834771 DOI: 10.3389/fimmu.2024.1333429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/08/2024] [Indexed: 02/06/2024] Open
Abstract
Diabetic kidney disease (DKD) stands as the predominant cause of chronic kidney disease (CKD) on a global scale, with its incidence witnessing a consistent annual rise, thereby imposing a substantial burden on public health. The pathogenesis of DKD is primarily rooted in metabolic disorders and inflammation. Recent years have seen a surge in studies highlighting the regulatory impact of energy metabolism on innate immunity, forging a significant area of research interest. Within this context, fibroblast growth factor 21 (FGF21), recognized as an energy metabolism regulator, assumes a pivotal role. Beyond its role in maintaining glucose and lipid metabolism homeostasis, FGF21 exerts regulatory influence on innate immunity, concurrently inhibiting inflammation and fibrosis. Serving as a nexus between energy metabolism and innate immunity, FGF21 has evolved into a therapeutic target for diabetes, nonalcoholic steatohepatitis, and cardiovascular diseases. While the relationship between FGF21 and DKD has garnered increased attention in recent studies, a comprehensive exploration of this association has yet to be systematically addressed. This paper seeks to fill this gap by summarizing the mechanisms through which FGF21 operates in DKD, encompassing facets of energy metabolism and innate immunity. Additionally, we aim to assess the diagnostic and prognostic value of FGF21 in DKD and explore its potential role as a treatment modality for the condition.
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Affiliation(s)
- Yingnan Liang
- Department of Nephrology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Qi Chen
- Department of Nephrology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yue Chang
- Department of Nephrology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Junsong Han
- Department of Nephrology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Jiaxin Yan
- Department of Nephrology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Zhenjie Chen
- Department of Nephrology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Jingwei Zhou
- Department of Nephrology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
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Ma J, Zhao K, Zhu Y, Xu W, Huang J, Wei X, Zhao Z. Bibliometric analysis of monoclonal antibodies for atherosclerosis. Hum Vaccin Immunother 2023; 19:2266926. [PMID: 37905896 PMCID: PMC10760398 DOI: 10.1080/21645515.2023.2266926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 10/01/2023] [Indexed: 11/02/2023] Open
Abstract
Atherosclerosis (AS) is a prevalent cardiovascular disease that greatly increases mortality in the aging population and imposes a heavy burden on global healthcare systems. The purpose of this study is to examine the research structure and current trends of monoclonal antibodies (mAbs) against AS from a bibliometric perspective, since the development of these drugs is currently booming. This study collected articles and reviews on mAbs against AS from the Web of Science Core Collection, spanning from 2003 to 2022. Biblioshiny was utilized to analyze and visualize the characteristics of countries, regions, authors, institutions, and journals included in this collection. We used VOS viewer to illustrate the frequency of country co-occurrence, and CiteSpace to visualize co-cited reference, keywords co-occurrence, keywords citation bursts, keywords clustering and timeline plots. The study included 1325 publications, with the United States emerging as a leading contributor to the field. ATHEROSCLEROSIS, CIRCULATION and ARTERIOSCLEROSISTHROMBOSIS AND VASCULAR BIOLOGY are core journals that publish high-quality literature on the latest advances in the field. Noteworthy authors with numerous high-quality publications include Witztum JL and Tsimikas S. Currently, lipid metabolism and inflammation are the main research areas of interest in this field. The mAbs against AS is an evolving field, and ongoing research continues to advance our understanding. This paper provides a comprehensive overview of the current state of knowledge in this area, highlighting two primary research directions: inflammation and lipid metabolism. Additionally, the paper identifies emerging research hotspots, which will provide researchers with useful insights to guide future investigations and anticipate research directions.
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Affiliation(s)
- Jiqing Ma
- Department of Vascular Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Kaiwen Zhao
- Department of Vascular Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yalin Zhu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
- Department of Anesthesiology, Naval Hospital of Eastern Theater, Zhoushan, China
| | - Wen Xu
- Department of Anesthesiology, Naval Hospital of Eastern Theater, Zhoushan, China
| | - Jie Huang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xiaolong Wei
- Department of Vascular Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zhiqing Zhao
- Department of Vascular Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
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Guo Q, Wang Q, Li J, Liu S, Wang X, Yu D, Zou Z, Gao G, Zhang Q, Hao F, Feng J, Yang R, Wang M, Fu H, Bao X, Duan L. Proteomic and metabolomic characterizations of moyamoya disease patient sera. Brain Behav 2023; 13:e3328. [PMID: 37962021 PMCID: PMC10726768 DOI: 10.1002/brb3.3328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND The pathogenesis of moyamoya disease (MMD) is unclear. Inflammation and immune imbalance have been identified as potential factors contributing to the occurrence and progression of MMD. However, the specific proteins and metabolites responsible for triggering this process are yet to be established. The purpose of this study is to identify differentially expressed proteins and metabolites in patients with MMD and perform Kyoto Encyclopedia of Genes and Genomes pathway integration analysis to pinpoint crucial proteins and metabolites involved in the disease. METHODS We performed untargeted metabolomic and data-independent acquisition proteomic analyses on the serum samples of individuals with MMD and healthy controls (HC). RESULTS In patients with MMD versus HC, 24 proteins and 60 metabolites, including 21 anionic metabolites and 39 cationic metabolites, which were significantly different, were identified. In patients with MMD, several proteins involved in inflammation and immune metabolism, such as tubulin beta-6 and complement C4, were found to have significantly altered levels. Similarly, many metabolites involved in inflammation and immune metabolisms, such as dimethyl 4-hydroxyisophthalate, beta-nicotinamide mononucleotide, 2-(3-(4-pyridyl)-1H-1,2,4-triazol-5-yl)pyridine, and PC (17:1/18:2), were significantly altered. Intriguingly, these proteins and metabolites are involved in the progression of atherosclerosis through immune and inflammatory pathways, although some have never been reported in MMD. Moreover, integrated proteomics and metabolomics studies were conducted to determine shared pathways involving cholesterol metabolism, vitamin digestion, fat digestion, and absorption pathways of proteins and metabolites, which warrant further investigation. CONCLUSIONS Significant increases in pro-inflammatory and immunosuppressive abilities have been observed in patients with MMD, accompanied by significant reductions in anti-inflammatory and immune regulation. Various metabolites and proteins implicated in these processes have been identified for the first time. These findings hold immense significance for comprehending the pathogenesis of MMD and for the development of future drug therapies.
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Affiliation(s)
- Qingbao Guo
- Medical School of Chinese PLABeijingChina
- Department of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijingChina
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Qian‐Nan Wang
- Department of Neurosurgery, The Eighth Medical CentreChinese PLA General HospitalBeijingChina
| | - Jingjie Li
- Medical School of Chinese PLABeijingChina
- Department of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijingChina
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Simeng Liu
- Medical School of Chinese PLABeijingChina
- Department of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijingChina
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Xiaopeng Wang
- Medical School of Chinese PLABeijingChina
- Department of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijingChina
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Dan Yu
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Zheng‐Xing Zou
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Gan Gao
- Medical School of Chinese PLABeijingChina
- Department of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijingChina
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Qian Zhang
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Fang‐Bin Hao
- Medical School of Chinese PLABeijingChina
- Department of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijingChina
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Jie Feng
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Ri‐Miao Yang
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Minjie Wang
- Medical School of Chinese PLABeijingChina
- Department of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijingChina
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Heguan Fu
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Xiangyang Bao
- Department of Neurosurgery, The Fifth Medical CentreChinese PLA General HospitalBeijingChina
| | - Lian Duan
- Department of Neurosurgery, The First Medical CentreChinese PLA General HospitalBeijingChina
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19
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Okpaise D, Sluis-Cremer N, Rappocciolo G, Rinaldo CR. Cholesterol Metabolism in Antigen-Presenting Cells and HIV-1 Trans-Infection of CD4 + T Cells. Viruses 2023; 15:2347. [PMID: 38140588 PMCID: PMC10747884 DOI: 10.3390/v15122347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/28/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Antiretroviral therapy (ART) provides an effective method for managing HIV-1 infection and preventing the onset of AIDS; however, it is ineffective against the reservoir of latent HIV-1 that persists predominantly in resting CD4+ T cells. Understanding the mechanisms that facilitate the persistence of the latent reservoir is key to developing an effective cure for HIV-1. Of particular importance in the establishment and maintenance of the latent viral reservoir is the intercellular transfer of HIV-1 from professional antigen-presenting cells (APCs-monocytes/macrophages, myeloid dendritic cells, and B lymphocytes) to CD4+ T cells, termed trans-infection. Whereas virus-to-cell HIV-1 cis infection is sensitive to ART, trans-infection is impervious to antiviral therapy. APCs from HIV-1-positive non-progressors (NPs) who control their HIV-1 infection in the absence of ART do not trans-infect CD4+ T cells. In this review, we focus on this unique property of NPs that we propose is driven by a genetically inherited, altered cholesterol metabolism in their APCs. We focus on cellular cholesterol homeostasis and the role of cholesterol metabolism in HIV-1 trans-infection, and notably, the link between cholesterol efflux and HIV-1 trans-infection in NPs.
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Affiliation(s)
| | | | | | - Charles R. Rinaldo
- Department of Medicine, Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; (D.O.); (N.S.-C.); (G.R.)
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20
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Diniz F, Ngo NYN, Colon-Leyva M, Edgington-Giordano F, Hilliard S, Zwezdaryk K, Liu J, El-Dahr SS, Tortelote GG. Acetyl-CoA is a key molecule for nephron progenitor cell pool maintenance. Nat Commun 2023; 14:7733. [PMID: 38007516 PMCID: PMC10676360 DOI: 10.1038/s41467-023-43513-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/10/2023] [Indexed: 11/27/2023] Open
Abstract
Nephron endowment at birth impacts long-term renal and cardiovascular health, and it is contingent on the nephron progenitor cell (NPC) pool. Glycolysis modulation is essential for determining NPC fate, but the underlying mechanism is unclear. Combining RNA sequencing and quantitative proteomics we identify 267 genes commonly targeted by Wnt activation or glycolysis inhibition in NPCs. Several of the impacted pathways converge at Acetyl-CoA, a co-product of glucose metabolism. Notably, glycolysis inhibition downregulates key genes of the Mevalonate/cholesterol pathway and stimulates NPC differentiation. Sodium acetate supplementation rescues glycolysis inhibition effects and favors NPC maintenance without hindering nephrogenesis. Six2Cre-mediated removal of ATP-citrate lyase (Acly), an enzyme that converts citrate to acetyl-CoA, leads to NPC pool depletion, glomeruli count reduction, and increases Wnt4 expression at birth. Sodium acetate supplementation counters the effects of Acly deletion on cap-mesenchyme. Our findings show a pivotal role of acetyl-CoA metabolism in kidney development and uncover new avenues for manipulating nephrogenesis and preventing adult kidney disease.
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Affiliation(s)
- Fabiola Diniz
- Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Nguyen Yen Nhi Ngo
- Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Mariel Colon-Leyva
- Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Francesca Edgington-Giordano
- Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Sylvia Hilliard
- Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Kevin Zwezdaryk
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Jiao Liu
- Department of Human Genetics, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Samir S El-Dahr
- Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Giovane G Tortelote
- Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA, 70112, USA.
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21
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Antony IR, Wong BHS, Kelleher D, Verma NK. Maladaptive T-Cell Metabolic Fitness in Autoimmune Diseases. Cells 2023; 12:2541. [PMID: 37947619 PMCID: PMC10650071 DOI: 10.3390/cells12212541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/23/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023] Open
Abstract
Immune surveillance and adaptive immune responses, involving continuously circulating and tissue-resident T-lymphocytes, provide host defense against infectious agents and possible malignant transformation while avoiding autoimmune tissue damage. Activation, migration, and deployment of T-cells to affected tissue sites are crucial for mounting an adaptive immune response. An effective adaptive immune defense depends on the ability of T-cells to dynamically reprogram their metabolic requirements in response to environmental cues. Inability of the T-cells to adapt to specific metabolic demands may skew cells to become either hyporesponsive (creating immunocompromised conditions) or hyperactive (causing autoimmune tissue destruction). Here, we review maladaptive T-cell metabolic fitness that can cause autoimmune diseases and discuss how T-cell metabolic programs can potentially be modulated to achieve therapeutic benefits.
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Affiliation(s)
- Irene Rose Antony
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Vellore Institute of Technology, Vellore 632014, India; (I.R.A.); (B.H.S.W.); (D.K.)
| | - Brandon Han Siang Wong
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Interdisciplinary Graduate Programme, NTU Institute for Health Technologies (HealthTech-NTU), Nanyang Technological University, Singapore 637335, Singapore
| | - Dermot Kelleher
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Navin Kumar Verma
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Skin Research Institute of Singapore, Singapore 308205, Singapore
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22
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Ge S, Lian W, Bai Y, Wang L, Zhao F, Li H, Wang D, Pang Q. TMT-based quantitative proteomics reveals the targets of andrographolide on LPS-induced liver injury. BMC Vet Res 2023; 19:199. [PMID: 37817228 PMCID: PMC10563216 DOI: 10.1186/s12917-023-03758-2] [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: 03/08/2023] [Accepted: 09/27/2023] [Indexed: 10/12/2023] Open
Abstract
BACKGROUND Andrographolide (Andro) is a diterpenoid derived from Andrographis paniculate, which has anti-inflammatory, antibacterial, antiviral and hepatoprotective activities. Gram-negative bacterial infections can cause varying degrees of liver injury in chickens, although Andro has been shown to have a protective effect on the liver, its underlying mechanism of action and effects on liver proteins are not known. METHODS The toxicity of Andro on the viability of leghorn male hepatoma (LMH) cells at different concentrations and times was analyzed by CCK-8 assays. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities in the culture supernatants were measured using an automatic biochemical analyzer to evaluate the protective effect of androscopolide on LPS-induced injury of LMH cells. Subsequently, TMT proteomics analysis were performed on the negative control group (NC group), LPS, and LPS-Andro groups, and bioinformatics analysis was performed on the differentially expressed proteins (DEPs). RESULTS It was found that Andro reduced ALT and AST levels in the cell supernatant and alleviated LPS-induced injury in LMH cells. Proteomic analysis identified 50 and 166 differentially expressed proteins in the LPS vs. NC group and LPS-Andro vs. LPS group, respectively. Andro may be involved in steroid metabolic processes, negative regulation of MAPK cascade, oxidative stress, and other processes to protect against LPS-induced liver injury. CONCLUSIONS Andro protects against LPS-induced liver injury, HMGCS1, HMGCR, FDPS, PBK, CAV1, PRDX1, PRDX4, and PRDX6, which were identified by differential proteomics, may be the targets of Andro. Our study may provide new theoretical support for Andro protection against liver injury.
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Affiliation(s)
- Shihao Ge
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
- College of Pharmacy, Heze University, Heze, 274000, Shangdong, China
| | - Wenqi Lian
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Yongjiang Bai
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Linzheng Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250035, Shangdong, China
| | - Fuwei Zhao
- College of Pharmacy, Heze University, Heze, 274000, Shangdong, China
| | - Houmei Li
- Shuozhou grass and animal husbandry development center, ShuoZhou, 036000, Shanxi, China
| | - Dongliang Wang
- ShuoZhou Vocational Technology College, ShuoZhou, 036000, Shanxi, China
| | - Quanhai Pang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
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23
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Garcia Tejedor A, Haros CM, Laparra Llopis JM. Chenopodium quinoa's Ingredients Improve Control of the Hepatic Lipid Disturbances Derived from a High-Fat Diet. Foods 2023; 12:3321. [PMID: 37685253 PMCID: PMC10487113 DOI: 10.3390/foods12173321] [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: 07/25/2023] [Revised: 08/27/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
This study explored the effects of Chenopodium quinoa's ingredients on the major lipids' hepatic profile and the functional selective differentiation of monocyte-derived macrophages and innate lymphoid cells in mice on a high-fat diet. Six-week-old Rag2-/- and Rag2-/-Il2-/- mice received (12 days) a low-molecular-weight protein fraction (LWPF) or the lipid fraction (qLF) obtained from the cold pressing of C. quinoa's germen. At the end of the experiment, mouse serum and liver tissue were collected. The differences in triglycerides, phospholipids, and the major lipids profile were analyzed. Infiltrated monocyte-derived macrophages and innate lymphoid cells (ILCs) and the expression of liver metabolic stress-related mRNA were measured. In the Rag2-/- mice, feeding them LWPF appeared to improve, to a larger extent, their hepatic capacity to utilize fatty acids in comparison to the qLF by preventing the overwhelming of triglycerides (TGs), despite both reducing the hepatic lipid accumulation. An analysis of the hepatic major lipids profile revealed significant increased variations in the PUFAs and phospholipid composition in the Rag2-/- mice fed with the LWPF or LF. The Rag2-/-Il2-/- mice, lacking innate and adaptive lymphocytes, seemed resistant to mobilizing hepatic TGs and unresponsive to lipid accumulation when fed with the LF. Notably, only the Rag2-/- mice fed with the LWPF showed an increased proportion of hepatic CD68+F4/80+ cells population, with a better controlled expression of the innate immune 'Toll-like' receptor (TLR)-4. These changes were associated with an oriented expansion of pluripotential CD117+ cells towards ILC2s (CD117+KLRG1+). Thus, C. quinoa's ingredients resulted in being advantageous for improving the mechanisms for controlling the hepatic lipotoxicity derived from a high-fat diet, promoting liver macrophage and ILCs expansion to a selective functional differentiation for the control of HFD-driven immune and metabolic disturbances.
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Affiliation(s)
- Aurora Garcia Tejedor
- Bioactivity and Nutritional Immunology Group (BIOINUT), Faculty of Health Sciences, Universidad Internacional de Valencia—VIU, Pintor Sorolla 21, 46002 Valencia, Spain;
| | - Claudia Monika Haros
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), 46980 Valencia, Spain;
| | - José Moisés Laparra Llopis
- Molecular Immunonutrition Group, Madrid Institute for Advanced Studies in Food (IMDEA-Food), 28049 Madrid, Spain
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24
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Hu C, Wu H, Zhu Q, Cao N, Wang H. Cholesterol metabolism in T-cell aging: Accomplices or victims. FASEB J 2023; 37:e23136. [PMID: 37584624 DOI: 10.1096/fj.202300515r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 07/12/2023] [Accepted: 07/31/2023] [Indexed: 08/17/2023]
Abstract
Aging has a significant impact on the function and metabolism of T cells. Cholesterol, the most important sterol in mammals, is known as the "gold of the body" because it maintains membrane fluidity, rigidity, and signal transduction while also serving as a precursor of oxysterols, bile acids, and steroid hormones. Cholesterol homeostasis is primarily controlled by uptake, biosynthesis, efflux, and regulatory mechanisms. Previous studies have suggested that there are reciprocal interactions between cholesterol metabolism and T lymphocytes. Here, we will summarize the most recent advances in the effects of cholesterol and its derivatives on T-cell aging. We will furthermore discuss interventions that might be used to help older individuals with immune deficiencies or diminishing immune competence.
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Affiliation(s)
- Cexun Hu
- Department of Clinical Genetics, Yueyang Maternal and Child Health-Care Hospital, Yueyang, P.R. China
- Department of Immunology, Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
| | - Hongliang Wu
- Department of Clinical Genetics, Yueyang Maternal and Child Health-Care Hospital, Yueyang, P.R. China
| | - Qun Zhu
- Department of Clinical Genetics, Yueyang Maternal and Child Health-Care Hospital, Yueyang, P.R. China
| | - Na Cao
- Department of Hematology, Yueyang People's Hospital, Yueyang, P. R. China
- Yueyang Hospital Affiliated to Hunan Normal University, Yueyang, P.R. China
| | - Hui Wang
- Department of Immunology, Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
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25
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Hansen SB, Wang H. The shared role of cholesterol in neuronal and peripheral inflammation. Pharmacol Ther 2023; 249:108486. [PMID: 37390970 DOI: 10.1016/j.pharmthera.2023.108486] [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: 03/17/2023] [Revised: 06/22/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
Neurodegeneration and its loss of cognitive function is associated with inflammation and an accumulation of lipids. In the periphery, cholesterol's uptake drives a major component of chronic inflammation. In this perspective, we describe the cellular and molecular roles of cholesterol in neuroinflammation and contrast them with those in the periphery. Incorporating shared mechanisms from the periphery, cholesterol emerges as a central signal originating in astrocytes and connecting inflammatory escalation in neurons and microglia. A cholesterol uptake pathway is proposed for neuroinflammation, and we speculate on the binding of cholesterol transport protein apolipoprotein E (apoE), including the Christchurch mutant (R136S), to cell surface receptors as a potential protective modality against uptake of astrocyte cholesterol and escalated neuroinflammation. Lastly, we discuss the molecular basis of cholesterol signaling through nanoscopic clustering and peripheral sources of cholesterol after opening of the blood brain barrier.
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Affiliation(s)
- Scott B Hansen
- Department of Molecular Medicine, UF Scripps, Jupiter, FL 33458, USA; Department of Neuroscience, UF Scripps, Jupiter, FL 33458, USA.
| | - Hao Wang
- The Scripps Research Institute, Jupiter, FL 33458, USA
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26
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Guo X, Zhou Q, Jin J, Lan F, Wen C, Li J, Yang N, Sun C. Hepatic steatosis is associated with dysregulated cholesterol metabolism and altered protein acetylation dynamics in chickens. J Anim Sci Biotechnol 2023; 14:108. [PMID: 37568219 PMCID: PMC10422840 DOI: 10.1186/s40104-023-00910-8] [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: 04/23/2023] [Accepted: 06/28/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND Hepatic steatosis is a prevalent manifestation of fatty liver, that has detrimental effect on the health and productivity of laying hens, resulting in economic losses to the poultry industry. Here, we aimed to systematically investigate the genetic regulatory mechanisms of hepatic steatosis in laying hens. METHODS Ninety individuals with the most prominent characteristics were selected from 686 laying hens according to the accumulation of lipid droplets in the liver, and were graded into three groups, including the control, mild hepatic steatosis and severe hepatic steatosis groups. A combination of transcriptome, proteome, acetylome and lipidome analyses, along with bioinformatics analysis were used to screen the key biological processes, modifications and lipids associated with hepatic steatosis. RESULTS The rationality of the hepatic steatosis grouping was verified through liver biochemical assays and RNA-seq. Hepatic steatosis was characterized by increased lipid deposition and multiple metabolic abnormalities. Integration of proteome and acetylome revealed that differentially expressed proteins (DEPs) interacted with differentially acetylated proteins (DAPs) and were involved in maintaining the metabolic balance in the liver. Acetylation alterations mainly occurred in the progression from mild to severe hepatic steatosis, i.e., the enzymes in the fatty acid oxidation and bile acid synthesis pathways were significantly less acetylated in severe hepatic steatosis group than that in mild group (P < 0.05). Lipidomics detected a variety of sphingolipids (SPs) and glycerophospholipids (GPs) were negatively correlated with hepatic steatosis (r ≤ -0.5, P < 0.05). Furthermore, the severity of hepatic steatosis was associated with a decrease in cholesterol and bile acid synthesis and an increase in exogenous cholesterol transport. CONCLUSIONS In addition to acquiring a global and thorough picture of hepatic steatosis in laying hens, we were able to reveal the role of acetylation in hepatic steatosis and depict the changes in hepatic cholesterol metabolism. The findings provides a wealth of information to facilitate a deeper understanding of the pathophysiology of fatty liver and contributes to the development of therapeutic strategies.
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Affiliation(s)
- Xiaoli Guo
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Qianqian Zhou
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Jiaming Jin
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Fangren Lan
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Chaoliang Wen
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Junying Li
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Ning Yang
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Congjiao Sun
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
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27
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Chen P, Wu M, He Y, Jiang B, He ML. Metabolic alterations upon SARS-CoV-2 infection and potential therapeutic targets against coronavirus infection. Signal Transduct Target Ther 2023; 8:237. [PMID: 37286535 DOI: 10.1038/s41392-023-01510-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 04/18/2023] [Accepted: 05/19/2023] [Indexed: 06/09/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) caused by coronavirus SARS-CoV-2 infection has become a global pandemic due to the high viral transmissibility and pathogenesis, bringing enormous burden to our society. Most patients infected by SARS-CoV-2 are asymptomatic or have mild symptoms. Although only a small proportion of patients progressed to severe COVID-19 with symptoms including acute respiratory distress syndrome (ARDS), disseminated coagulopathy, and cardiovascular disorders, severe COVID-19 is accompanied by high mortality rates with near 7 million deaths. Nowadays, effective therapeutic patterns for severe COVID-19 are still lacking. It has been extensively reported that host metabolism plays essential roles in various physiological processes during virus infection. Many viruses manipulate host metabolism to avoid immunity, facilitate their own replication, or to initiate pathological response. Targeting the interaction between SARS-CoV-2 and host metabolism holds promise for developing therapeutic strategies. In this review, we summarize and discuss recent studies dedicated to uncovering the role of host metabolism during the life cycle of SARS-CoV-2 in aspects of entry, replication, assembly, and pathogenesis with an emphasis on glucose metabolism and lipid metabolism. Microbiota and long COVID-19 are also discussed. Ultimately, we recapitulate metabolism-modulating drugs repurposed for COVID-19 including statins, ASM inhibitors, NSAIDs, Montelukast, omega-3 fatty acids, 2-DG, and metformin.
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Affiliation(s)
- Peiran Chen
- Department of Biomedical Sciences, City University of Hong Kong, HKSAR, Hong Kong, China
| | - Mandi Wu
- Department of Biomedical Sciences, City University of Hong Kong, HKSAR, Hong Kong, China
| | - Yaqing He
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong, China
| | - Binghua Jiang
- Cell Signaling and Proteomic Center, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Ming-Liang He
- Department of Biomedical Sciences, City University of Hong Kong, HKSAR, Hong Kong, China.
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28
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Luo L, Guo Y, Chen L, Zhu J, Li C. Crosstalk between cholesterol metabolism and psoriatic inflammation. Front Immunol 2023; 14:1124786. [PMID: 37234169 PMCID: PMC10206135 DOI: 10.3389/fimmu.2023.1124786] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/26/2023] [Indexed: 05/27/2023] Open
Abstract
Psoriasis is a chronic autoinflammatory skin disease associated with multiple comorbidities, with a prevalence ranging from 2 to 3% in the general population. Decades of preclinical and clinical studies have revealed that alterations in cholesterol and lipid metabolism are strongly associated with psoriasis. Cytokines (tumor necrosis factor-α (TNF-α), interleukin (IL)-17), which are important in the pathogenesis of psoriasis, have been shown to affect cholesterol and lipid metabolism. Cholesterol metabolites and metabolic enzymes, on the other hand, influence not only the biofunction of keratinocytes (a primary type of cell in the epidermis) in psoriasis, but also the immune response and inflammation. However, the relationship between cholesterol metabolism and psoriasis has not been thoroughly reviewed. This review mainly focuses on cholesterol metabolism disturbances in psoriasis and their crosstalk with psoriatic inflammation.
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Affiliation(s)
- Lingling Luo
- Department of Dermatology, Hospital for Skin Disease, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Youming Guo
- Department of Dermatology, Hospital for Skin Disease, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Lihao Chen
- Department of Dermatology, Hospital for Skin Disease, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Jing Zhu
- Department of Dermatology, Hospital for Skin Disease, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Chengrang Li
- Department of Dermatology, Hospital for Skin Disease, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
- Department of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections, Nanjing, Jiangsu, China
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29
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Chen J, Qin P, Tao Z, Ding W, Yao Y, Xu W, Yin D, Tan S. Anticancer Activity of Methyl Protodioscin against Prostate Cancer by Modulation of Cholesterol-Associated MAPK Signaling Pathway <i>via</i> FOXO1 Induction. Biol Pharm Bull 2023; 46:574-585. [PMID: 37005301 DOI: 10.1248/bpb.b22-00682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Methyl protodioscin (MPD), a furostanol saponin found in the rhizomes of Dioscoreaceae, has lipid-lowering and broad anticancer properties. However, the efficacy of MPD in treating prostate cancer remains unexplored. Therefore, the present study aimed to evaluate the anticancer activity and action mechanism of MPD in prostate cancer. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), wound healing, transwell, and flow cytometer assays revealed that MPD suppressed proliferation, migration, cell cycle, and invasion and induced apoptosis of DU145 cells. Mechanistically, MPD decreased cholesterol concentration in the cholesterol oxidase, peroxidase and 4-aminoantipyrine phenol (COD-PAP) assay, disrupting the lipid rafts as detected using immunofluorescence and immunoblot analyses after sucrose density gradient centrifugation. Further, it reduced the associated mitogen-activated protein kinase (MAPK) signaling pathway protein P-extracellular regulated protein kinase (ERK), detected using immunoblot analysis. Forkhead box O (FOXO)1, a tumor suppressor and critical factor controlling cholesterol metabolism, was predicted to be a direct target of MPD and induced by MPD. Notably, in vivo studies demonstrated that MPD significantly reduced tumor size, suppressed cholesterol concentration and the MAPK signaling pathway, and induced FOXO1 expression and apoptosis in tumor tissue in a subcutaneous mouse model. These results suggest that MPD displays anti-prostate cancer activity by inducing FOXO1 protein, reducing cholesterol concentration, and disrupting lipid rafts. Consequently, the reduced MAPK signaling pathway suppresses proliferation, migration, invasion, and cell cycle and induces apoptosis of prostate cancer cells.
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Affiliation(s)
- Jie Chen
- School of Pharmacy, Anhui University of Chinese Medicine
| | - Puyan Qin
- School of Pharmacy, Anhui University of Chinese Medicine
| | - Zhanxia Tao
- College of Life Science, Capital Normal University
| | - Weijian Ding
- School of Pharmacy, Anhui University of Chinese Medicine
| | - Yunlong Yao
- School of Pharmacy, Anhui University of Chinese Medicine
| | - Weifang Xu
- School of Pharmacy, Anhui University of Chinese Medicine
| | - Dengke Yin
- School of Pharmacy, Anhui University of Chinese Medicine
| | - Song Tan
- School of Pharmacy, Anhui University of Chinese Medicine
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MacPherson KP, Eidson LN, Houser MC, Weiss BE, Gollihue JL, Herrick MK, de Sousa Rodrigues ME, Sniffen L, Weekman EM, Hamilton AM, Kelly SD, Oliver DL, Yang Y, Chang J, Sampson TR, Norris CM, Tansey MG. Soluble TNF mediates amyloid-independent, diet-induced alterations to immune and neuronal functions in an Alzheimer's disease mouse model. Front Cell Neurosci 2023; 17:895017. [PMID: 37006470 PMCID: PMC10052573 DOI: 10.3389/fncel.2023.895017] [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: 03/12/2022] [Accepted: 01/20/2023] [Indexed: 03/17/2023] Open
Abstract
Introduction: Increasing evidence indicates that neurodegenerative diseases, including Alzheimer's disease (AD), are a product of gene-by-environment interplay. The immune system is a major contributor mediating these interactions. Signaling between peripheral immune cells and those within the microvasculature and meninges of the central nervous system (CNS), at the blood-brain barrier, and in the gut likely plays an important role in AD. The cytokine tumor necrosis factor (TNF) is elevated in AD patients, regulates brain and gut barrier permeability, and is produced by central and peripheral immune cells. Our group previously reported that soluble TNF (sTNF) modulates cytokine and chemokine cascades that regulate peripheral immune cell traffic to the brain in young 5xFAD female mice, and in separate studies that a diet high in fat and sugar (HFHS) dysregulates signaling pathways that trigger sTNF-dependent immune and metabolic responses that can result in metabolic syndrome, which is a risk factor for AD. We hypothesized that sTNF is a key mediator of peripheral immune cell contributions to gene-by-environment interactions to AD-like pathology, metabolic dysfunction, and diet-induced gut dysbiosis. Methods: Female 5xFAD mice were subjected to HFHS diet for 2 months and then given XPro1595 to inhibit sTNF for the last month or saline vehicle. We quantified immune cell profiles by multi-color flow cytometry on cells isolated from brain and blood; metabolic, immune, and inflammatory mRNA and protein marker biochemical and immunhistological analyses, gut microbiome, and electrophysiology in brain slices were also performed. Results: Here, we show that selective inhibition of sTNF signaling via the biologic XPro1595 modulates the effects of an HFHS diet in 5xFAD mice on peripheral and central immune profiles including CNS-associated CD8+ T cells, the composition of gut microbiota, and long-term potentiation deficits. Discussion: Obesogenic diet induces immune and neuronal dysfunction in 5xFAD mice and sTNF inhibition mitigates its effects. A clinical trial in subjects at risk for AD due to genetic predisposition and underlying inflammation associated with peripheral inflammatory co-morbidities will be needed to investigate the extent to which these findings translate to the clinic.
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Affiliation(s)
- Kathryn P. MacPherson
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
| | - Lori N. Eidson
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
| | - Madelyn C. Houser
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, United States
| | - Blaine E. Weiss
- Sanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, United States
| | - Jenna L. Gollihue
- Sanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, United States
| | - Mary K. Herrick
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Neuroscience and Center for Translational Research in Neurodegenerative Disease, The University of Florida College of Medicine, Gainesville, FL, United States
| | - Maria Elizabeth de Sousa Rodrigues
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Lindsey Sniffen
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
| | - Erica M. Weekman
- Sanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, United States
| | - Adam M. Hamilton
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Sean D. Kelly
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Danielle L. Oliver
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
| | - Yuan Yang
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
| | - Jianjun Chang
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Timothy R. Sampson
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Christopher M. Norris
- Sanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, United States
| | - Malú Gámez Tansey
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Neuroscience and Center for Translational Research in Neurodegenerative Disease, The University of Florida College of Medicine, Gainesville, FL, United States
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31
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Zhou X, Jin S, Pan J, Lin Q, Yang S, Lu Y, Qiu M, Ambe PC, Basharat Z, Zimmer V, Wang W, Hong W. Relationship between Cholesterol-Related Lipids and Severe Acute Pancreatitis: From Bench to Bedside. J Clin Med 2023; 12:jcm12051729. [PMID: 36902516 PMCID: PMC10003000 DOI: 10.3390/jcm12051729] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/29/2023] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
It is well known that hypercholesterolemia in the body has pro-inflammatory effects through the formation of inflammasomes and augmentation of TLR (Toll-like receptor) signaling, which gives rise to cardiovascular disease and neurodegenerative diseases. However, the interaction between cholesterol-related lipids and acute pancreatitis (AP) has not yet been summarized before. This hinders the consensus on the existence and clinical importance of cholesterol-associated AP. This review focuses on the possible interaction between AP and cholesterol-related lipids, which include total cholesterol, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C) and apolipoprotein (Apo) A1, from the bench to the bedside. With a higher serum level of total cholesterol, LDL-C is associated with the severity of AP, while the persistent inflammation of AP is allied with a decrease in serum levels of cholesterol-related lipids. Therefore, an interaction between cholesterol-related lipids and AP is postulated. Cholesterol-related lipids should be recommended as risk factors and early predictors for measuring the severity of AP. Cholesterol-lowering drugs may play a role in the treatment and prevention of AP with hypercholesterolemia.
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Affiliation(s)
- Xiaoying Zhou
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- School of the First Clinical Medical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Shengchun Jin
- School of the First Clinical Medical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Jingyi Pan
- School of the First Clinical Medical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Qingyi Lin
- School of the First Clinical Medical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Shaopeng Yang
- School of the First Clinical Medical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yajing Lu
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Minhao Qiu
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Peter C. Ambe
- Department of General Surgery, Visceral Surgery and Coloproctology, Vinzenz-Pallotti-Hospital Bensberg, Vinzenz-Pallotti-Str. 20–24, 51429 Bensberg, Germany
| | - Zarrin Basharat
- Jamil-ur-Rahman Center for Genome Research, Dr. Panjwani Centre for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Vincent Zimmer
- Department of Medicine, Marienhausklinik St. Josef Kohlhof, 66539 Neunkirchen, Germany
- Department of Medicine II, Saarland University Medical Center, Saarland University, 66421 Homburg, Germany
| | - Wei Wang
- School of Mental Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Wandong Hong
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Correspondence: ; Tel./Fax: +86-0577-55579122
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32
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Yuan Z, Hansen SB. Cholesterol Regulation of Membrane Proteins Revealed by Two-Color Super-Resolution Imaging. MEMBRANES 2023; 13:membranes13020250. [PMID: 36837753 PMCID: PMC9966874 DOI: 10.3390/membranes13020250] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/05/2023] [Accepted: 02/07/2023] [Indexed: 05/15/2023]
Abstract
Cholesterol and phosphatidyl inositol 4,5-bisphosphate (PIP2) are hydrophobic molecules that regulate protein function in the plasma membrane of all cells. In this review, we discuss how changes in cholesterol concentration cause nanoscopic (<200 nm) movements of membrane proteins to regulate their function. Cholesterol is known to cluster many membrane proteins (often palmitoylated proteins) with long-chain saturated lipids. Although PIP2 is better known for gating ion channels, in this review, we will discuss a second independent function as a regulator of nanoscopic protein movement that opposes cholesterol clustering. The understanding of the movement of proteins between nanoscopic lipid domains emerged largely through the recent advent of super-resolution imaging and the establishment of two-color techniques to label lipids separate from proteins. We discuss the labeling techniques for imaging, their strengths and weakness, and how they are used to reveal novel mechanisms for an ion channel, transporter, and enzyme function. Among the mechanisms, we describe substrate and ligand presentation and their ability to activate enzymes, gate channels, and transporters rapidly and potently. Finally, we define cholesterol-regulated proteins (CRP) and discuss the role of PIP2 in opposing the regulation of cholesterol, as seen through super-resolution imaging.
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Affiliation(s)
- Zixuan Yuan
- Department of Molecular Medicine, Department of Neuroscience, UF Scripps, Jupiter, FL 33458, USA
- Department of Neuroscience UF Scripps, Jupiter, FL 33458, USA
- Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, FL 33458, USA
| | - Scott B. Hansen
- Department of Molecular Medicine, Department of Neuroscience, UF Scripps, Jupiter, FL 33458, USA
- Department of Neuroscience UF Scripps, Jupiter, FL 33458, USA
- Correspondence:
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Liu P, Quan X, Zhang Q, Chen Y, Wang X, Xu C, Li N. Multi-omics reveals the mechanisms of DEHP driven pulmonary toxicity in ovalbumin-sensitized mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 249:114355. [PMID: 36508822 DOI: 10.1016/j.ecoenv.2022.114355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 11/02/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
The plasticizer di- (2-ethylhexyl) phthalate (DEHP) is considered a risk factor for allergic diseases and has attracted public attention for its adverse effects on health. However, respiratory adverse effects after DEHP exposure in food allergies have rarely been reported. MiRNAs are considered to be key regulators in the complex interrelationships between the host and microbiome and may be a potential factor involved in DEHP-induced pulmonary toxicity. To investigate the adverse effects of DEHP on the lung during sensitization, we established an ovalbumin (OVA)-sensitized mouse model exposed to DEHP and performed 16S rDNA gene sequencing, miRNA sequencing, and correlation analysis. Our results showed that DEHP aggravated the immune disorder in OVA-sensitized mice, which was mainly characterized by an increase in the proportion of Th2 lymphocytes, and further enhanced OVA-induced airway inflammation without promoting pulmonary fibrosis. Compared with the OVA group, DEHP interfered with the lung microbial community, making Proteobacteria the dominant phylum, while Bacteroidetes were significantly reduced. Differentially expressed miRNAs were enriched in the PI3K/AKT pathway, which was closely related to immune function and airway inflammation. The expression of miR-146b-5p was elevated in the DEHP group, which was positively correlated with the proportion of Th2 cells and significantly negatively correlated with the abundance of Bacteroidetes. The results indicate that DEHP may interfere with the expression of miR-146b-5p, affect the composition of the lung microbiota, induce an imbalance in T cells, and lead to immune disorders and airway inflammation. The current study uses multi-omics to reveal the potential link between the plasticizer DEHP and allergic diseases and provides new insights into the ecotoxicology of environmental exposures to DEHP.
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Affiliation(s)
- Ping Liu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xu Quan
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingqing Zhang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanyan Chen
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinqiong Wang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Chundi Xu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Na Li
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine and The Second Affiliated Hospital, Hainan Medical University, Haikou, Hainan, China.
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34
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Martín-Montes A, Recuero M, Sastre I, Vilella E, Rosich-Estragó M, Atienza M, Cantero JL, Frank-García A, Bullido MJ. Cholesterol dysregulation in peripheral blood mononuclear cells of Alzheimer's disease. J Neuroimmunol 2022; 373:577996. [PMID: 36334319 DOI: 10.1016/j.jneuroim.2022.577996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/14/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
Cholesterol and the immune system are involved in Alzheimer's Disease (AD). To investigate the relations among them, we compared the cholesterol content in peripheral blood mononuclear cells (PBMC) of cognitively healthy controls and patients with mild cognitive impairment (MCI) and AD in two independent samples. Free cholesterol content of PBMC was lower in MCI and AD patients, and was modulated by APOE genotype. A decrease of CD8+ and an increase of CD16+ was also found in AD patients. These results suggest that cholesterol levels in PBMCs may represent an early signature of the disease and support the involvement of immune system in AD.
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Affiliation(s)
- A Martín-Montes
- Instituto de Investigación Sanitaria del Hospital Universitario La Paz, IdiPAZ (Hospital Universitario La Paz - Universidad Autónoma de Madrid), Madrid, Spain; CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, Carlos III Institute of Health, Madrid, Spain.
| | - M Recuero
- Centro de Biologia Molecular "Severo Ochoa" (C.S.I.C.-U.A.M.), Universidad Autonoma de Madrid, Madrid, Spain; CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, Carlos III Institute of Health, Madrid, Spain
| | - I Sastre
- Centro de Biologia Molecular "Severo Ochoa" (C.S.I.C.-U.A.M.), Universidad Autonoma de Madrid, Madrid, Spain; CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, Carlos III Institute of Health, Madrid, Spain
| | - E Vilella
- Hospital Universitari Institut Pere Mata, Reus, Spain; Institut d'Investigació Sanitària Pere Virgili-CERCA, Reus, Spain; Universitat Rovira i Virgili, Reus, Spain; Centro de investigación biomédica en red en salud mental, CIBERSAM-Instituto de Salud Carlos III, Madrid, Spain
| | - M Rosich-Estragó
- Hospital Universitari Institut Pere Mata, Reus, Spain; Institut d'Investigació Sanitària Pere Virgili-CERCA, Reus, Spain; Universitat Rovira i Virgili, Reus, Spain; Centro de investigación biomédica en red en salud mental, CIBERSAM-Instituto de Salud Carlos III, Madrid, Spain
| | - M Atienza
- CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, Carlos III Institute of Health, Madrid, Spain; Laboratory of Functional Neuroscience, Pablo de Olavide University, Seville, Spain
| | - J L Cantero
- CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, Carlos III Institute of Health, Madrid, Spain; Laboratory of Functional Neuroscience, Pablo de Olavide University, Seville, Spain
| | - A Frank-García
- Instituto de Investigación Sanitaria del Hospital Universitario La Paz, IdiPAZ (Hospital Universitario La Paz - Universidad Autónoma de Madrid), Madrid, Spain; CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, Carlos III Institute of Health, Madrid, Spain
| | - M J Bullido
- Instituto de Investigación Sanitaria del Hospital Universitario La Paz, IdiPAZ (Hospital Universitario La Paz - Universidad Autónoma de Madrid), Madrid, Spain; Centro de Biologia Molecular "Severo Ochoa" (C.S.I.C.-U.A.M.), Universidad Autonoma de Madrid, Madrid, Spain; CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, Carlos III Institute of Health, Madrid, Spain.
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35
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Role of B Lymphocytes in the Pathogenesis of NAFLD: A 2022 Update. Int J Mol Sci 2022; 23:ijms232012376. [PMID: 36293233 PMCID: PMC9603875 DOI: 10.3390/ijms232012376] [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: 09/02/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
Non-alcoholic fatty liver disease and its related complications are becoming one of the most important health problems globally. The liver functions as both a metabolic and an immune organ. The crosstalk between hepatocytes and intrahepatic immune cells plays a key role in coordinating a dual function of the liver in terms of the protection of the host from antigenic overload as a result of receiving nutrients and gut microbiota antigenic stimulation via facilitating immunologic tolerance. B cells are the most abundant lymphocytes in the liver. The crucial role of intrahepatic B cells in energy metabolism under different immune conditions is now emerging in the literature. The accumulating evidence has demonstrated that the antibodies and cytokines produced by B cells in the microenvironment play key and distinct roles in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Herein, we have aimed to consolidate and update the current knowledge about the pathophysiological roles of B cells as well as the underlying mechanisms in energy metabolism. Understanding how B cells can exacerbate and suppress liver damage by exploiting the antibodies and cytokines they produce will be of great importance for designing B-cell targeting therapies to treat various liver diseases.
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36
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Comparative Transcriptome Analysis of Organ-Specific Adaptive Responses to Hypoxia Provides Insights to Human Diseases. Genes (Basel) 2022; 13:genes13061096. [PMID: 35741857 PMCID: PMC9222487 DOI: 10.3390/genes13061096] [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] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 02/01/2023] Open
Abstract
The common carp is a hypoxia-tolerant fish, and the understanding of its ability to live in low-oxygen environments has been applied to human health issues such as cancer and neuron degeneration. Here, we investigated differential gene expression changes during hypoxia in five common carp organs including the brain, the gill, the head kidney, the liver, and the intestine. Based on RNA sequencing, gene expression changes under hypoxic conditions were detected in over 1800 genes in common carp. The analysis of these genes further revealed that all five organs had high expression-specific properties. According to the results of the GO and KEGG, the pathways involved in the adaptation to hypoxia provided information on responses specific to each organ in low oxygen, such as glucose metabolism and energy usage, cholesterol synthesis, cell cycle, circadian rhythm, and dopamine activation. DisGeNET analysis showed that some human diseases such as cancer, diabetes, epilepsy, metabolism diseases, and social ability disorders were related to hypoxia-regulated genes. Our results suggested that common carp undergo various gene regulations in different organs under hypoxic conditions, and integrative bioinformatics may provide some potential targets for advancing disease research.
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37
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Methionine strengthens anti-inflammation of rice protein via depressing NF-κB activation and stimulating Msr expression in rats fed cholesterol-enriched diets. Food Sci Biotechnol 2022; 31:745-758. [PMID: 35646410 PMCID: PMC9133292 DOI: 10.1007/s10068-022-01074-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 11/04/2022] Open
Abstract
Oxidized low-density lipoprotein (ox-LDL) is an inducer of inflammation. To elucidate the link of depression of ox-LDL accumulation and anti-inflammatory function of rice protein (RP) whether dependent on methionine availability, growing and adult rats were fed RP and methionine-supplemented RP (RM) under cholesterol-enriched dietary condition. After two weeks feeding, RP and RMs exerted the anti-inflammatory effects through up-regulating IL-10, while RP and RMs significantly reduced ox-LDL levels and effectively suppressed the expressions of inflammatory mediators (COX-2, IL-1β, IL-6, TNF-α, iNOS). The anti-inflammatory molecular mechanism was to inhibit NF-κB activation and to simulate methionine sulfoxide reductase expression. Results showed, under cholesterol-enriched dietary condition, the anti-inflammatory action can be induced by RP and enhanced by methionine in growing and adult rats. The present study reveals a link of the decreased ox-LDL accumulation with the anti-inflammatory function of RP, which is dependent on methionine availability and independent of dietary cholesterol.
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38
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Metabolism in atherosclerotic plaques: immunoregulatory mechanisms in the arterial wall. Clin Sci (Lond) 2022; 136:435-454. [PMID: 35348183 PMCID: PMC8965849 DOI: 10.1042/cs20201293] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/02/2022] [Accepted: 03/16/2022] [Indexed: 02/05/2023]
Abstract
Over the last decade, there has been a growing interest to understand the link between metabolism and the immune response in the context of metabolic diseases but also beyond, giving then birth to a new field of research. Termed 'immunometabolism', this interdisciplinary field explores paradigms of both immunology and metabolism to provided unique insights into different disease pathogenic processes, and the identification of new potential therapeutic targets. Similar to other inflammatory conditions, the atherosclerotic inflammatory process in the artery has been associated with a local dysregulated metabolic response. Thus, recent studies show that metabolites are more than just fuels in their metabolic pathways, and they can act as modulators of vascular inflammation and atherosclerosis. In this review article, we describe the most common immunometabolic pathways characterised in innate and adaptive immune cells, and discuss how macrophages' and T cells' metabolism may influence phenotypic changes in the plaque. Moreover, we discuss the potential of targeting immunometabolism to prevent and treat cardiovascular diseases (CVDs).
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Graham ML, Ramachandran S, Singh A, Moore MEG, Flanagan EB, Azimzadeh A, Burlak C, Mueller KR, Martins K, Anazawa T, Balamurugan AN, Bansal-Pakala P, Murtaugh MP, O’Brien TD, Papas KK, Spizzo T, Schuurman HJ, Hancock WW, Hering BJ. Clinically available immunosuppression averts rejection but not systemic inflammation after porcine islet xenotransplant in cynomolgus macaques. Am J Transplant 2022; 22:745-760. [PMID: 34704345 PMCID: PMC9832996 DOI: 10.1111/ajt.16876] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/30/2021] [Accepted: 10/19/2021] [Indexed: 01/25/2023]
Abstract
A safe, efficacious, and clinically applicable immunosuppressive regimen is necessary for islet xenotransplantation to become a viable treatment option for diabetes. We performed intraportal transplants of wild-type adult porcine islets in 25 streptozotocin-diabetic cynomolgus monkeys. Islet engraftment was good in 21, partial in 3, and poor in 1 recipient. Median xenograft survival was 25 days with rapamycin and CTLA4Ig immunosuppression. Adding basiliximab induction and maintenance tacrolimus to the base regimen significantly extended median graft survival to 147 days (p < .0001), with three animals maintaining insulin-free xenograft survival for 265, 282, and 288 days. We demonstrate that this regimen suppresses non-Gal anti-pig antibody responses, circulating effector memory T cell expansion, effector function, and infiltration of the graft. However, a chronic systemic inflammatory state manifested in the majority of recipients with long-term graft survival indicated by increased neutrophil to lymphocyte ratio, IL-6, MCP-1, CD40, and CRP expression. This suggests that this immunosuppression regimen fails to regulate innate immunity and resulting inflammation is significantly associated with increased incidence and severity of adverse events making this regimen unacceptable for translation. Additional studies are needed to optimize a maintenance regimen for regulating the innate inflammatory response.
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Affiliation(s)
- Melanie L. Graham
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
| | | | - Amar Singh
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
| | - Meghan E. G. Moore
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN
| | - E. Brian Flanagan
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
| | - Agnes Azimzadeh
- Department of Surgery, University of Maryland, Baltimore, MD
| | - Christopher Burlak
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
| | - Kate R. Mueller
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
| | - Kyra Martins
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN
| | - Takayuki Anazawa
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
| | | | - Pratima Bansal-Pakala
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
| | - Michael P. Murtaugh
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN
| | - Timothy D. O’Brien
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN
| | - Klearchos K. Papas
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
| | | | - Henk-J. Schuurman
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN,Spring Point Project, Minneapolis, MN
| | - Wayne W. Hancock
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA
| | - Bernhard. J. Hering
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN
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40
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Paukner K, Králová Lesná I, Poledne R. Cholesterol in the Cell Membrane-An Emerging Player in Atherogenesis. Int J Mol Sci 2022; 23:533. [PMID: 35008955 PMCID: PMC8745363 DOI: 10.3390/ijms23010533] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 12/30/2021] [Accepted: 12/30/2021] [Indexed: 02/01/2023] Open
Abstract
Membrane cholesterol is essential for cell membrane properties, just as serum cholesterol is important for the transport of molecules between organs. This review focuses on cholesterol transport between lipoproteins and lipid rafts on the surface of macrophages. Recent studies exploring this mechanism and recognition of the central dogma-the key role of macrophages in cardiovascular disease-have led to the notion that this transport mechanism plays a major role in the pathogenesis of atherosclerosis. The exact molecular mechanism of this transport remains unclear. Future research will improve our understanding of the molecular and cellular bases of lipid raft-associated cholesterol transport.
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Affiliation(s)
- Karel Paukner
- Laboratory for Atherosclerosis Research, Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (I.K.L.); (R.P.)
- Department of Physiology, Faculty of Science, Charles University, 128 44 Prague, Czech Republic
- Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, Small Animal Clinic, 612 00 Brno, Czech Republic
| | - Ivana Králová Lesná
- Laboratory for Atherosclerosis Research, Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (I.K.L.); (R.P.)
- Department of Anesthesia and Intensive Medicine, First Faculty of Medicine, Charles University and University Military Hospital, 128 08 Prague, Czech Republic
| | - Rudolf Poledne
- Laboratory for Atherosclerosis Research, Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (I.K.L.); (R.P.)
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Lad N, Murphy A, Parenti C, Nelson C, Williams N, Sharpe G, McTernan P. Asthma and obesity: endotoxin another insult to add to injury? Clin Sci (Lond) 2021; 135:2729-2748. [PMID: 34918742 PMCID: PMC8689194 DOI: 10.1042/cs20210790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/29/2021] [Accepted: 12/06/2021] [Indexed: 12/20/2022]
Abstract
Low-grade inflammation is often an underlying cause of several chronic diseases such as asthma, obesity, cardiovascular disease, and type 2 diabetes mellitus (T2DM). Defining the mediators of such chronic low-grade inflammation often appears dependent on which disease is being investigated. However, downstream systemic inflammatory cytokine responses in these diseases often overlap, noting there is no doubt more than one factor at play to heighten the inflammatory response. Furthermore, it is increasingly believed that diet and an altered gut microbiota may play an important role in the pathology of such diverse diseases. More specifically, the inflammatory mediator endotoxin, which is a complex lipopolysaccharide (LPS) derived from the outer membrane cell wall of Gram-negative bacteria and is abundant within the gut microbiota, and may play a direct role alongside inhaled allergens in eliciting an inflammatory response in asthma. Endotoxin has immunogenic effects and is sufficiently microscopic to traverse the gut mucosa and enter the systemic circulation to act as a mediator of chronic low-grade inflammation in disease. Whilst the role of endotoxin has been considered in conditions of obesity, cardiovascular disease and T2DM, endotoxin as an inflammatory trigger in asthma is less well understood. This review has sought to examine the current evidence for the role of endotoxin in asthma, and whether the gut microbiota could be a dietary target to improve disease management. This may expand our understanding of endotoxin as a mediator of further low-grade inflammatory diseases, and how endotoxin may represent yet another insult to add to injury.
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Affiliation(s)
- Nikita Lad
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Alice M. Murphy
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Cristina Parenti
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Carl P. Nelson
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Neil C. Williams
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Graham R. Sharpe
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Philip G. McTernan
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
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Glitscher M, Hildt E. Endosomal Cholesterol in Viral Infections - A Common Denominator? Front Physiol 2021; 12:750544. [PMID: 34858206 PMCID: PMC8632007 DOI: 10.3389/fphys.2021.750544] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/22/2021] [Indexed: 12/24/2022] Open
Abstract
Cholesterol has gained tremendous attention as an essential lipid in the life cycle of virtually all viruses. These seem to have developed manifold strategies to modulate the cholesterol metabolism to the side of lipid uptake and de novo synthesis. In turn, affecting the cholesterol homeostasis has emerged as novel broad-spectrum antiviral strategy. On the other hand, the innate immune system is similarly regulated by the lipid and stimulated by its derivatives. This certainly requires attention in the design of antiviral strategies aiming to decrease cellular cholesterol, as evidence accumulates that withdrawal of cholesterol hampers innate immunity. Secondly, there are exceptions to the rule of the abovementioned virus-induced metabolic shift toward cholesterol anabolism. It therefore is of interest to dissect underlying regulatory mechanisms, which we aimed for in this minireview. We further collected evidence for intracellular cholesterol concentrations being less important in viral life cycles as compared to the spatial distribution of the lipid. Various routes of cholesterol trafficking were found to be hijacked in viral infections with respect to organelle-endosome contact sites mediating cholesterol shuttling. Thus, re-distribution of cellular cholesterol in the context of viral infections requires more attention in ongoing research. As a final aim, a pan-antiviral treatment could be found just within the transport and re-adjustment of local cholesterol concentrations. Thus, we aimed to emphasize the importance of the regulatory roles the endosomal system fulfils herein and hope to stimulate research in this field.
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Affiliation(s)
| | - Eberhard Hildt
- Department of Virology, Paul-Ehrlich-Institute, Langen, Germany
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