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Nataraj K, Schonfeld M, Rodriguez A, Tikhanovich I. Protective role of 17β-estradiol in alcohol-associated liver fibrosis is mediated by suppression of integrin signaling. Hepatol Commun 2024; 8:e0428. [PMID: 38704651 PMCID: PMC11073774 DOI: 10.1097/hc9.0000000000000428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 02/25/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Alcohol-associated liver disease is a complex disease regulated by genetic and environmental factors such as diet and sex. The combination of high-fat diet and alcohol consumption has synergistic effects on liver disease progression. Female sex hormones are known to protect females from liver disease induced by high-fat diet. In contrast, they promote alcohol-mediated liver injury. We aimed to define the role of female sex hormones on liver disease induced by a combination of high-fat diet and alcohol. METHODS Wild-type and protein arginine methyltransferase (Prmt)6 knockout female mice were subjected to gonadectomy (ovariectomy, OVX) or sham surgeries and then fed western diet and alcohol in the drinking water. RESULTS We found that female sex hormones protected mice from western diet/alcohol-induced weight gain, liver steatosis, injury, and fibrosis. Our data suggest that these changes are, in part, mediated by estrogen-mediated induction of arginine methyltransferase PRMT6. Liver proteome changes induced by OVX strongly correlated with changes induced by Prmt6 knockout. Using Prmt6 knockout mice, we confirmed that OVX-mediated weight gain, steatosis, and injury are PRMT6 dependent, while OVX-induced liver fibrosis is PRMT6 independent. Proteomic and gene expression analyses revealed that estrogen signaling suppressed the expression of several components of the integrin pathway, thus reducing integrin-mediated proinflammatory (Tnf, Il6) and profibrotic (Tgfb1, Col1a1) gene expression independent of PRMT6 levels. Integrin signaling inhibition using Arg-Gly-Asp peptides reduced proinflammatory and profibrotic gene expression in mice, suggesting that integrin suppression by estrogen is protective against fibrosis development. CONCLUSIONS Taken together, estrogen signaling protects mice from liver disease induced by a combination of alcohol and high-fat diet through upregulation of Prmt6 and suppression of integrin signaling.
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Burelle C, Clapatiuc V, Deschênes S, Cuillerier A, De Loof M, Higgins MÈ, Boël H, Daneault C, Chouinard B, Clavet MÉ, Tessier N, Croteau I, Chabot G, Martel C, Sirois MG, Lesage S, Burelle Y, Ruiz M. A genetic mouse model of lean-NAFLD unveils sexual dimorphism in the liver-heart axis. Commun Biol 2024; 7:356. [PMID: 38519536 PMCID: PMC10959946 DOI: 10.1038/s42003-024-06035-6] [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: 09/21/2022] [Accepted: 03/11/2024] [Indexed: 03/25/2024] Open
Abstract
Lean patients with NAFLD may develop cardiac complications independently of pre-existent metabolic disruptions and comorbidities. To address the underlying mechanisms independent of the development of obesity, we used a murine model of hepatic mitochondrial deficiency. The liver-heart axis was studied as these mice develop microvesicular steatosis without obesity. Our results unveil a sex-dependent phenotypic remodeling beyond liver damage. Males, more than females, show fasting hypoglycemia and increased insulin sensitivity. They exhibit diastolic dysfunction, remodeling of the circulating lipoproteins and cardiac lipidome. Conversely, females do not manifest cardiac dysfunction but exhibit cardiometabolic impairments supported by impaired mitochondrial integrity and β-oxidation, remodeling of circulating lipoproteins and intracardiac accumulation of deleterious triglycerides. This study underscores metabolic defects in the liver resulting in significant sex-dependent cardiac abnormalities independent of obesity. This experimental model may prove useful to better understand the sex-related variability, notably in the heart, involved in the progression of lean-NAFLD.
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Affiliation(s)
- Charlotte Burelle
- Department of Medicine, Université de Montréal, Montreal, QC, Canada
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | - Valentin Clapatiuc
- Department of Medicine, Université de Montréal, Montreal, QC, Canada
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | - Sonia Deschênes
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | - Alexanne Cuillerier
- Faculty of Health Sciences and Medicine, University of Ottawa, Ottawa, OC, Canada
| | - Marine De Loof
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | | | - Hugues Boël
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | | | | | | | - Nolwenn Tessier
- Department of Medicine, Université de Montréal, Montreal, QC, Canada
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | | | - Geneviève Chabot
- Research Center, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada
| | - Catherine Martel
- Department of Medicine, Université de Montréal, Montreal, QC, Canada
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | - Martin G Sirois
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
- Department of Physiology and Pharmacology, Université de Montréal, Montreal, QC, Canada
| | - Sylvie Lesage
- Research Center, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada
| | - Yan Burelle
- Faculty of Health Sciences and Medicine, University of Ottawa, Ottawa, OC, Canada
| | - Matthieu Ruiz
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.
- Department of Nutrition, Université de Montréal, Montreal, QC, Canada.
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Jin C, Wang M, Gao X, Wu S, Ding H, Bao Z, Wang B, Hu J. Deciphering scavenger receptors reveals key regulators in the intestine that function in carotenoid coloration of leopard coral groupers (Plectropomus leopardus). Int J Biol Macromol 2024; 260:129387. [PMID: 38253150 DOI: 10.1016/j.ijbiomac.2024.129387] [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: 10/19/2023] [Revised: 12/16/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024]
Abstract
Carotenoid based body coloration are common features in fish, which depends on the diet derived carotenoids pigments deposition, employing a bunch of carotenoid uptake, absorption and processing related genes. Scavenger receptors are a large family of cell surface receptors with complex structure and diverse functions. However, the SRs genes have been insufficiently explored concerning their role in fish carotenoid coloration. Here, we systemically identified 19 SRs family genes and investigated their expression patterns of in various tissues of P. leopardus. Expression analysis unveiled the diverse involvements of SRs in the intestine of P. leopardus with different body colors and the responses to exogenous carotenoids. Notably, cd36, emerged as a pivotal factor in intestinal functions predominantly localized in the intestinal epithelial and goblet cells. Knockdown of cd36 led to the reduction in skin brightness and carotenoid levels in both intestine and skin, while overexpressing cd36 increased the carotenoids uptake of cells in vitro. Additionally, our investigations revealed that cd36 exerts regulation on genes associated with carotenoid uptake, transport, and processing. To sum up, our results provide a comprehensive view on SRs functions in carotenoid coloration of P. leopardus and will facilitate the understanding on the mechanism of carotenoids coloration of vertebrates.
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Affiliation(s)
- Chaofan Jin
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Mengya Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Xin Gao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Shaoxuan Wu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Hui Ding
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Zhenmin Bao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China; Hainan Seed Industry Laboratory, Sanya 572025, China; Southern Marine Science and Engineer Guangdong Laboratory, Guangzhou 511458, China
| | - Bo Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China; Hainan Seed Industry Laboratory, Sanya 572025, China.
| | - Jingjie Hu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China; Hainan Seed Industry Laboratory, Sanya 572025, China; Southern Marine Science and Engineer Guangdong Laboratory, Guangzhou 511458, China.
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4
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Smiriglia A, Lorito N, Serra M, Perra A, Morandi A, Kowalik MA. Sex difference in liver diseases: How preclinical models help to dissect the sex-related mechanisms sustaining NAFLD and hepatocellular carcinoma. iScience 2023; 26:108363. [PMID: 38034347 PMCID: PMC10682354 DOI: 10.1016/j.isci.2023.108363] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023] Open
Abstract
Only a few preclinical findings are confirmed in the clinic, posing a critical issue for clinical development. Therefore, identifying the best preclinical models can help to dissect molecular and mechanistic insights into liver disease pathogenesis while being clinically relevant. In this context, the sex relevance of most preclinical models has been only partially considered. This is particularly significant in NAFLD and HCC, which have a higher prevalence in men when compared to pre-menopause women but not to those in post-menopausal status, suggesting a role for sex hormones in the pathogenesis of the diseases. This review gathers the sex-relevant findings and the available preclinical models focusing on both in vitro and in vivo studies and discusses the potential implications and perspectives of introducing the sex effect in the selection of the best preclinical model. This is a critical aspect that would help to tailor personalized therapies based on sex.
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Affiliation(s)
- Alfredo Smiriglia
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy
| | - Nicla Lorito
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy
| | - Marina Serra
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, Italy
| | - Andrea Perra
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, Italy
| | - Andrea Morandi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy
| | - Marta Anna Kowalik
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, Italy
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5
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Kurt Z, Cheng J, Barrere-Cain R, McQuillen CN, Saleem Z, Hsu N, Jiang N, Pan C, Franzén O, Koplev S, Wang S, Björkegren J, Lusis AJ, Blencowe M, Yang X. Shared and distinct pathways and networks genetically linked to coronary artery disease between human and mouse. eLife 2023; 12:RP88266. [PMID: 38060277 PMCID: PMC10703441 DOI: 10.7554/elife.88266] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023] Open
Abstract
Mouse models have been used extensively to study human coronary artery disease (CAD) or atherosclerosis and to test therapeutic targets. However, whether mouse and human share similar genetic factors and pathogenic mechanisms of atherosclerosis has not been thoroughly investigated in a data-driven manner. We conducted a cross-species comparison study to better understand atherosclerosis pathogenesis between species by leveraging multiomics data. Specifically, we compared genetically driven and thus CAD-causal gene networks and pathways, by using human GWAS of CAD from the CARDIoGRAMplusC4D consortium and mouse GWAS of atherosclerosis from the Hybrid Mouse Diversity Panel (HMDP) followed by integration with functional multiomics human (STARNET and GTEx) and mouse (HMDP) databases. We found that mouse and human shared >75% of CAD causal pathways. Based on network topology, we then predicted key regulatory genes for both the shared pathways and species-specific pathways, which were further validated through the use of single cell data and the latest CAD GWAS. In sum, our results should serve as a much-needed guidance for which human CAD-causal pathways can or cannot be further evaluated for novel CAD therapies using mouse models.
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Affiliation(s)
- Zeyneb Kurt
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
- The Information School at the University of SheffieldSheffieldUnited Kingdom
| | - Jenny Cheng
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
- Interdepartmental Program of Molecular, Cellular and Integrative Physiology, University of California, Los AngelesLos AngelesUnited States
| | - Rio Barrere-Cain
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
| | - Caden N McQuillen
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
| | - Zara Saleem
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
| | - Neil Hsu
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
| | - Nuoya Jiang
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
| | - Calvin Pan
- Department of Medicine, Division of Cardiology, University of California, Los AngelesLos AngelesUnited States
| | - Oscar Franzén
- Department of Genetics & Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount SinaiNew YorkUnited States
| | - Simon Koplev
- Department of Genetics & Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount SinaiNew YorkUnited States
| | - Susanna Wang
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
| | - Johan Björkegren
- Department of Genetics & Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount SinaiNew YorkUnited States
- Department of Medicine, (Huddinge), Karolinska InstitutetHuddingeSweden
| | - Aldons J Lusis
- Department of Medicine, Division of Cardiology, University of California, Los AngelesLos AngelesUnited States
- Departments of Human Genetics & Microbiology, Immunology, and Molecular Genetics, UCLALos AngelesUnited States
- Cardiovascular Research Laboratory, David Geffen School of Medicine, UCLALos AngelesUnited States
| | - Montgomery Blencowe
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
- Interdepartmental Program of Molecular, Cellular and Integrative Physiology, University of California, Los AngelesLos AngelesUnited States
| | - Xia Yang
- Department of Integrative Biology and Physiology, University of California, Los AngelesLos AngelesUnited States
- Interdepartmental Program of Molecular, Cellular and Integrative Physiology, University of California, Los AngelesLos AngelesUnited States
- Interdepartmental Program of Bioinformatics, University of California, Los AngelesLos AngelesUnited States
- Department of Molecular and Medical Pharmacology, University of California, Los AngelesLos AngelesUnited States
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6
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Wang TH, Li JB, Tian YG, Zheng JX, Li XD, Guo SZ. Association of TNF-α, IGF-1, and IGFBP-1 levels with the severity of osteopenia in mice with nonalcoholic fatty liver disease. J Orthop Surg Res 2023; 18:915. [PMID: 38041076 PMCID: PMC10691127 DOI: 10.1186/s13018-023-04385-1] [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: 08/12/2023] [Accepted: 11/18/2023] [Indexed: 12/03/2023] Open
Abstract
BACKGROUNDS Nonalcoholic fatty liver disease (NAFLD) exhibits a close association with osteoporosis. This work aims to assess the potential effects of NAFLD on the progression of osteopenia in animal models. METHODS Forty-eight C57BL/6 female mice were randomly divided to wild-type (WT) group and high-fat diet (HFD) group. The corresponding detections were performed after sacrifice at 16, 24 and 32 weeks, respectively. RESULTS At 16 weeks, an remarkable increase in body weight and lipid aggregation in the hepatocytes of HFD group was observed compared to the WT group, while the bone structure parameters showed no significant difference. At 24 weeks, the levels of TNF-α and IL-6 in NAFLD mice were significantly increased, while the level of osteoprotegerin mRNA in bone tissue was decreased, and the level of receptor activator of nuclear factor Kappa-B ligand mRNA was increased. Meanwhile, the function of osteoclasts was increased, and the bone microstructure parameters showed significant changes. At 32 weeks, in the HFD mice, the mRNA levels of insulin-like growth factor-1 (IGF-1), runt-related transcription factor 2, and osterix mRNA were reduced, while the insulin-like growth factor binding protein-1 (IGFBP-1) level was increased. Simultaneously, the osteoblast function was decreased, and the differences of bone structure parameters were more significant, showing obvious osteoporosis. CONCLUSIONS The bone loss in HFD mice is pronounced as NAFLD progresses, and the changes of the TNF-α, IL-6, IGF-1, and IGFBP-1 levels may play critical roles at the different stages of NAFLD in HFD.
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Affiliation(s)
- Tong-Hao Wang
- Department of Orthopedics, The Third Central Hospital of Tianjin; The Third Central Clinical College of Tianjin Medical University; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases; Artificial Cell Engineering Technology Research Center, Tianjin; Tianjin Institute of Hepatobiliary Disease, 83 Jintang Road, Hedong District, Tianjin, 300170, China
| | - Jian-Biao Li
- Department of Hepatobiliary Surgery, The Third Central Hospital of Tianjin; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases; Artificial Cell Engineering Technology Research Center, Tianjin; Tianjin Institute of Hepatobiliary Disease, Tianjin, 300170, China
| | - Yong-Gang Tian
- Department of Orthopedics, The Third Central Hospital of Tianjin; The Third Central Clinical College of Tianjin Medical University; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases; Artificial Cell Engineering Technology Research Center, Tianjin; Tianjin Institute of Hepatobiliary Disease, 83 Jintang Road, Hedong District, Tianjin, 300170, China
| | - Jin-Xin Zheng
- Department of Orthopedics, The Third Central Hospital of Tianjin; The Third Central Clinical College of Tianjin Medical University; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases; Artificial Cell Engineering Technology Research Center, Tianjin; Tianjin Institute of Hepatobiliary Disease, 83 Jintang Road, Hedong District, Tianjin, 300170, China
| | - Xiao-Dong Li
- Department of Orthopedics, The Third Central Hospital of Tianjin; The Third Central Clinical College of Tianjin Medical University; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases; Artificial Cell Engineering Technology Research Center, Tianjin; Tianjin Institute of Hepatobiliary Disease, 83 Jintang Road, Hedong District, Tianjin, 300170, China
| | - Shu-Zhang Guo
- Department of Orthopedics, The Third Central Hospital of Tianjin; The Third Central Clinical College of Tianjin Medical University; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases; Artificial Cell Engineering Technology Research Center, Tianjin; Tianjin Institute of Hepatobiliary Disease, 83 Jintang Road, Hedong District, Tianjin, 300170, China.
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7
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Chiodi V, Rappa F, Lo Re O, Chaldakov GN, Lelouvier B, Micale V, Domenici MR, Vinciguerra M. Deficiency of histone variant macroH2A1.1 is associated with sexually dimorphic obesity in mice. Sci Rep 2023; 13:19123. [PMID: 37926763 PMCID: PMC10625986 DOI: 10.1038/s41598-023-46304-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 10/30/2023] [Indexed: 11/07/2023] Open
Abstract
Obesity has a major socio-economic health impact. There are profound sex differences in adipose tissue deposition and obesity-related conditions. The underlying mechanisms driving sexual dimorphism in obesity and its associated metabolic disorders remain unclear. Histone variant macroH2A1.1 is a candidate epigenetic mechanism linking environmental and dietary factors to obesity. Here, we used a mouse model genetically depleted of macroH2A1.1 to investigate its potential epigenetic role in sex dimorphic obesity, metabolic disturbances and gut dysbiosis. Whole body macroH2A1 knockout (KO) mice, generated with the Cre/loxP technology, and their control littermates were fed a high fat diet containing 60% of energy derived from fat. The diet was administered for three months starting from 10 to 12 weeks of age. We evaluated the progression in body weight, the food intake, and the tolerance to glucose by means of a glucose tolerance test. Gut microbiota composition, visceral adipose and liver tissue morphology were assessed. In addition, adipogenic gene expression patterns were evaluated in the visceral adipose tissue. Female KO mice for macroH2A1.1 had a more pronounced weight gain induced by high fat diet compared to their littermates, while the increase in body weight in male mice was similar in the two genotypes. Food intake was generally increased upon KO and decreased by high fat diet in both sexes, with the exception of KO females fed a high fat diet that displayed the same food intake of their littermates. In glucose tolerance tests, glucose levels were significantly elevated upon high fat diet in female KO compared to a standard diet, while this effect was absent in male KO. There were no differences in hepatic histology. Upon a high fat diet, in female adipocyte cross-sectional area was larger in KO compared to littermates: activation of proadipogenic genes (ACACB, AGT, ANGPT2, FASN, RETN, SLC2A4) and downregulation of antiadipogenic genes (AXIN1, E2F1, EGR2, JUN, SIRT1, SIRT2, UCP1, CCND1, CDKN1A, CDKN1B, EGR2) was detected. Gut microbiota profiling showed increase in Firmicutes and a decrease in Bacteroidetes in females, but not males, macroH2A1.1 KO mice. MacroH2A1.1 KO mice display sexual dimorphism in high fat diet-induced obesity and in gut dysbiosis, and may represent a useful model to investigate epigenetic and metabolic differences associated to the development of obesity-associated pathological conditions in males and females.
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Affiliation(s)
- Valentina Chiodi
- National Centre for Drug Research and Evaluation, Istituto Superiore di Sanita', Rome, Italy
| | - Francesca Rappa
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy
| | - Oriana Lo Re
- Department of Translational Stem Cell Biology, Research Institute of the Medical University, Varna, Bulgaria
- International Clinical Research Center (FNUSA-ICRC), St'Anne University Hospital, Brno, Czech Republic
| | - George N Chaldakov
- Department of Translational Stem Cell Biology, Research Institute of the Medical University, Varna, Bulgaria
- Department of Anatomy and Cell Biology, Research Institute of the Medical University, Varna, Bulgaria
| | | | - Vincenzo Micale
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, Catania, Italy
| | - Maria Rosaria Domenici
- National Centre for Drug Research and Evaluation, Istituto Superiore di Sanita', Rome, Italy
| | - Manlio Vinciguerra
- Department of Translational Stem Cell Biology, Research Institute of the Medical University, Varna, Bulgaria.
- International Clinical Research Center (FNUSA-ICRC), St'Anne University Hospital, Brno, Czech Republic.
- Liverpool Centre for Cardiovascular Science (LCCS), Liverpool John Moores University, Liverpool, UK.
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Jurrjens AW, Seldin MM, Giles C, Meikle PJ, Drew BG, Calkin AC. The potential of integrating human and mouse discovery platforms to advance our understanding of cardiometabolic diseases. eLife 2023; 12:e86139. [PMID: 37000167 PMCID: PMC10065800 DOI: 10.7554/elife.86139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/15/2023] [Indexed: 04/01/2023] Open
Abstract
Cardiometabolic diseases encompass a range of interrelated conditions that arise from underlying metabolic perturbations precipitated by genetic, environmental, and lifestyle factors. While obesity, dyslipidaemia, smoking, and insulin resistance are major risk factors for cardiometabolic diseases, individuals still present in the absence of such traditional risk factors, making it difficult to determine those at greatest risk of disease. Thus, it is crucial to elucidate the genetic, environmental, and molecular underpinnings to better understand, diagnose, and treat cardiometabolic diseases. Much of this information can be garnered using systems genetics, which takes population-based approaches to investigate how genetic variance contributes to complex traits. Despite the important advances made by human genome-wide association studies (GWAS) in this space, corroboration of these findings has been hampered by limitations including the inability to control environmental influence, limited access to pertinent metabolic tissues, and often, poor classification of diseases or phenotypes. A complementary approach to human GWAS is the utilisation of model systems such as genetically diverse mouse panels to study natural genetic and phenotypic variation in a controlled environment. Here, we review mouse genetic reference panels and the opportunities they provide for the study of cardiometabolic diseases and related traits. We discuss how the post-GWAS era has prompted a shift in focus from discovery of novel genetic variants to understanding gene function. Finally, we highlight key advantages and challenges of integrating complementary genetic and multi-omics data from human and mouse populations to advance biological discovery.
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Affiliation(s)
- Aaron W Jurrjens
- Baker Heart and Diabetes Institute, Melbourne, Australia
- Central Clinical School, Monash University, Melbourne, Australia
| | - Marcus M Seldin
- Department of Biological Chemistry and Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, United States
| | - Corey Giles
- Baker Heart and Diabetes Institute, Melbourne, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
- Baker Department of Cardiovascular Research Translation and Implementation, La Trobe University, Bundoora, Australia
| | - Peter J Meikle
- Baker Heart and Diabetes Institute, Melbourne, Australia
- Central Clinical School, Monash University, Melbourne, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
- Baker Department of Cardiovascular Research Translation and Implementation, La Trobe University, Bundoora, Australia
| | - Brian G Drew
- Baker Heart and Diabetes Institute, Melbourne, Australia
- Central Clinical School, Monash University, Melbourne, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
| | - Anna C Calkin
- Baker Heart and Diabetes Institute, Melbourne, Australia
- Central Clinical School, Monash University, Melbourne, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
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9
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Gu S, Hu S, Wang S, Qi C, Shi C, Fan G. Bidirectional association between NAFLD and gallstone disease: a systematic review and meta-analysis of observational studies. Expert Rev Gastroenterol Hepatol 2023; 17:283-293. [PMID: 36726224 DOI: 10.1080/17474124.2023.2175671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Growing evidence indicates an association between NAFLD and gallstone disease (GD), while some does not support this. The aim of this meta-analysis was to evaluate the bidirectional association between NAFLD and GD. RESEARCH DESIGN AND METHODS Five electronic databases were searched from inception to May 2022. The association was analyzed based on the odds ratio (OR) and 95% confidence interval (CI) with Reviewer Manager 5.3. RESULTS Ten studies involving 284,512 participants met the criteria for GD predicting the onset of NAFLD. GD patients had a higher incidence of NAFLD (OR:1.48, CI:1.32-1.65, p < 0.00001), especially the incidence of moderate-to-severe NAFLD (OR:1.63; CI:1.40-1.79), with females at a higher risk (OR: 1.84; CI: 1.48-2.29). The inverse association was explored in eight studies involving 326,922 participants. The GD incidence in NAFLD patients was higher (OR:1.71, CI:1.63-1.79, p < 0.00001) and may increase due to female sex (OR: 4.18; CI: 1.21-14.37) and high BMI (OR: 1.80; CI: 1.36-2.56), compared with the non-NAFLD group. Besides, this bidirectional association was also confirmed in the Chinese population. CONCLUSIONS The findings supported positive concurrent and bidirectional relationships between NAFLD and GD. Therefore, clinicians may alert the possibility of NAFLD in patients with GD and vice versa.
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Affiliation(s)
- Shengying Gu
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200080, Shanghai, China
| | - Shanshan Hu
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200080, Shanghai, China
| | - Shuowen Wang
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200080, Shanghai, China
| | - Chendong Qi
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200080, Shanghai, China
| | - Chenyang Shi
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200080, Shanghai, China
| | - Guorong Fan
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200080, Shanghai, China
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10
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Kharbanda KK, Chokshi S, Tikhanovich I, Weinman SA, New-Aaron M, Ganesan M, Osna NA. A Pathogenic Role of Non-Parenchymal Liver Cells in Alcohol-Associated Liver Disease of Infectious and Non-Infectious Origin. BIOLOGY 2023; 12:255. [PMID: 36829532 PMCID: PMC9953685 DOI: 10.3390/biology12020255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/08/2023]
Abstract
Now, much is known regarding the impact of chronic and heavy alcohol consumption on the disruption of physiological liver functions and the induction of structural distortions in the hepatic tissues in alcohol-associated liver disease (ALD). This review deliberates the effects of alcohol on the activity and properties of liver non-parenchymal cells (NPCs), which are either residential or infiltrated into the liver from the general circulation. NPCs play a pivotal role in the regulation of organ inflammation and fibrosis, both in the context of hepatotropic infections and in non-infectious settings. Here, we overview how NPC functions in ALD are regulated by second hits, such as gender and the exposure to bacterial or viral infections. As an example of the virus-mediated trigger of liver injury, we focused on HIV infections potentiated by alcohol exposure, since this combination was only limitedly studied in relation to the role of hepatic stellate cells (HSCs) in the development of liver fibrosis. The review specifically focusses on liver macrophages, HSC, and T-lymphocytes and their regulation of ALD pathogenesis and outcomes. It also illustrates the activation of NPCs by the engulfment of apoptotic bodies, a frequent event observed when hepatocytes are exposed to ethanol metabolites and infections. As an example of such a double-hit-induced apoptotic hepatocyte death, we deliberate on the hepatotoxic accumulation of HIV proteins, which in combination with ethanol metabolites, causes intensive hepatic cell death and pro-fibrotic activation of HSCs engulfing these HIV- and malondialdehyde-expressing apoptotic hepatocytes.
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Affiliation(s)
- Kusum K. Kharbanda
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Shilpa Chokshi
- Institute of Hepatology, Foundation for Liver Research, London SE5 9NT, UK
- Faculty of Life Sciences and Medicine, King’s College London, London SE5 8AF, UK
| | - Irina Tikhanovich
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, MO 66160, USA
| | - Steven A. Weinman
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, MO 66160, USA
- Research Service, Kansas City Veterans Administration Medical Center, Kansas City, MO 64128, USA
| | - Moses New-Aaron
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Murali Ganesan
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Natalia A. Osna
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
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11
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Lutsiv T, McGinley JN, Neil ES, Foster MT, Thompson HJ. Thwarting Metabolic Dysfunction-Associated Fatty Liver Disease (MAFLD) with Common Bean: Dose- and Sex-Dependent Protection against Hepatic Steatosis. Nutrients 2023; 15:nu15030526. [PMID: 36771233 PMCID: PMC9920904 DOI: 10.3390/nu15030526] [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: 12/26/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/20/2023] Open
Abstract
Hepatic steatosis signifies onset of metabolic dysfunction-associated fatty liver disease (MAFLD) caused by disrupted metabolic homeostasis compromising liver function. Regular consumption of common beans reduces the risk of metabolic impairment, but its effective dose, the impact of biological sex, and underlying mechanisms of action are unknown. We fed female and male C57BL6/J mice with obesogenic yet isocaloric diets containing 0%, 17.5%, 35%, and 70% of total dietary protein derived from cooked whole common beans. Liver tissue was collected for histopathology, lipid quantification, and RNA-seq analyses. Beans qualitatively and quantitatively diminished hepatic fat deposition at the 35% dose in female and 70% dose in male mice. Bean-induced differentially expressed genes (DEGs) most significantly mapped to hepatic steatosis and revealed dose-responsive inhibition of de novo lipogenesis markers (Acly, Acaca, Fasn, Elovl6, Scd1, etc.) and triacylglycerol biosynthesis, activation of triacylglycerol degradation, and downregulation of sterol regulatory element-binding transcription factor 1 (SREBF1) signaling. Upregulated fatty acid β-oxidation was more prominent in females, while suppression of Cd36-mediated fatty acid uptake-in males. Sex-dependent bean effects also involved DEGs patterns downstream of peroxisome proliferator-activated receptor α (PPARα) and MLX-interacting protein-like (MLXIPL). Therefore, biological sex determines amount of common bean in the diet required to prevent hepatic lipid accumulation.
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Affiliation(s)
- Tymofiy Lutsiv
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
| | - John N. McGinley
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
| | - Elizabeth S. Neil
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
| | - Michelle T. Foster
- Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO 80523, USA
| | - Henry J. Thompson
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
- Correspondence: ; Tel.: +1-970-491-7748 or +1-970-491-3542
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12
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Ampong I, Zimmerman KD, Perumalla DS, Wallis KE, Li G, Huber HF, Li C, Nathanielsz PW, Cox LA, Olivier M. Maternal obesity alters offspring liver and skeletal muscle metabolism in early post-puberty despite maintaining a normal post-weaning dietary lifestyle. FASEB J 2022; 36:e22644. [PMID: 36415994 PMCID: PMC9827852 DOI: 10.1096/fj.202201473r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/14/2022] [Accepted: 10/27/2022] [Indexed: 11/24/2022]
Abstract
Maternal obesity (MO) during pregnancy is linked to increased and premature risk of age-related metabolic diseases in the offspring. However, the underlying molecular mechanisms still remain not fully understood. Using a well-established nonhuman primate model of MO, we analyzed tissue biopsies and plasma samples obtained from post-pubertal offspring (3-6.5 y) of MO mothers (n = 19) and from control animals born to mothers fed a standard diet (CON, n = 13). All offspring ate a healthy chow diet after weaning. Using untargeted gas chromatography-mass spectrometry metabolomics analysis, we quantified a total of 351 liver, 316 skeletal muscle, and 423 plasma metabolites. We identified 58 metabolites significantly altered in the liver and 46 in the skeletal muscle of MO offspring, with 8 metabolites shared between both tissues. Several metabolites were changed in opposite directions in males and females in both liver and skeletal muscle. Several tissue-specific and 4 shared metabolic pathways were identified from these dysregulated metabolites. Interestingly, none of the tissue-specific metabolic changes were reflected in plasma. Overall, our study describes characteristic metabolic perturbations in the liver and skeletal muscle in MO offspring, indicating that metabolic programming in utero persists postnatally, and revealing potential novel mechanisms that may contribute to age-related metabolic diseases later in life.
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Affiliation(s)
- Isaac Ampong
- Center for Precision MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Department of Internal Medicine, Section on Molecular MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
| | - Kip D. Zimmerman
- Center for Precision MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Department of Internal Medicine, Section on Molecular MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
| | - Danu S. Perumalla
- Center for Precision MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Department of Internal Medicine, Section on Molecular MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
| | - Katharyn E. Wallis
- Center for Precision MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Department of Internal Medicine, Section on Molecular MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
| | - Ge Li
- Center for Precision MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Department of Internal Medicine, Section on Molecular MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
| | - Hillary F. Huber
- Southwest National Primate Research CenterTexas Biomedical Research InstituteSan AntonioTexasUSA
| | - Cun Li
- Center for Pregnancy & Newborn ResearchUniversity of WyomingLaramieWyomingUSA
| | - Peter W. Nathanielsz
- Southwest National Primate Research CenterTexas Biomedical Research InstituteSan AntonioTexasUSA
- Center for Pregnancy & Newborn ResearchUniversity of WyomingLaramieWyomingUSA
| | - Laura A. Cox
- Center for Precision MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Department of Internal Medicine, Section on Molecular MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Southwest National Primate Research CenterTexas Biomedical Research InstituteSan AntonioTexasUSA
| | - Michael Olivier
- Center for Precision MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Department of Internal Medicine, Section on Molecular MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
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13
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Izquierdo AG, Carreira MC, Rodriguez-Carnero G, Perez-Lois R, Seoane LM, Casanueva FF, Crujeiras AB. Gender Dimorphism in Hepatic Carcinogenesis-Related Gene Expression Associated with Obesity as a Low-Grade Chronic Inflammatory Disease. Int J Mol Sci 2022; 23:ijms232315002. [PMID: 36499327 PMCID: PMC9739425 DOI: 10.3390/ijms232315002] [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: 10/14/2022] [Revised: 11/23/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) and hepatocellular carcinoma (HCC) show clear evidence of sexual dimorphism, with a significantly higher incidence in males. Among the determining factors that could explain this sex-based difference, the specific distribution of fat by sex has been suggested as a primary candidate, since obesity is a relevant risk factor. In this context, obesity, considered a low-grade chronic inflammatory pathology and responsible for the promotion of liver disease, could lead to sexual dimorphism in the expression profile of genes related to tumor development. When we compared the expression levels of genes associated with the early stages of carcinogenesis in the liver between male and female diet-induced obesity (DIO) rats, we observed that the expression pattern was similar in obese male and female animals. Interestingly, the SURVIVIN/BIRC5 oncogene showed a higher expression in male DIO rats than in female DIO and lean rats. This trend related to sexual dimorphism was observed in leukocytes from patients with obesity, although the difference was not statistically significant. In conclusion, this study evidenced a similar pattern in the expression of most carcinogenesis-related genes in the liver, except SUVIVIN/BIRC5, which could be a predictive biomarker of liver carcinogenesis predisposition in male patients with obesity.
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Affiliation(s)
- Andrea G. Izquierdo
- Epigenomics in Endocrinology and Nutrition Group, Epigenomics Unit, Instituto de Investigacion Sanitaria de Santiago de Compostela (IDIS), Complejo Hospitalario Universitario de Santiago de Compostela (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
| | - Marcos C. Carreira
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), 28029 Madrid, Spain
- Molecular Endocrinology Group, Instituto de Investigacion Sanitaria de Santiago de Compostela (IDIS), Complejo Hospitalario Universitario de Santiago de Compostela (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
| | - Gemma Rodriguez-Carnero
- Epigenomics in Endocrinology and Nutrition Group, Epigenomics Unit, Instituto de Investigacion Sanitaria de Santiago de Compostela (IDIS), Complejo Hospitalario Universitario de Santiago de Compostela (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
- Division of Endocrinology and Nutrition, Complejo Hospitalario Universitario de Santiago de Compostela (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
| | - Raquel Perez-Lois
- Endocrine Physiopathology Group, Instituto de Investigacion Sanitaria de Santiago de Compostela (IDIS), Complejo Hospitalario Universitario de Santiago de Compostela (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
| | - Luisa M. Seoane
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), 28029 Madrid, Spain
- Endocrine Physiopathology Group, Instituto de Investigacion Sanitaria de Santiago de Compostela (IDIS), Complejo Hospitalario Universitario de Santiago de Compostela (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
| | - Felipe F. Casanueva
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), 28029 Madrid, Spain
- Molecular Endocrinology Group, Instituto de Investigacion Sanitaria de Santiago de Compostela (IDIS), Complejo Hospitalario Universitario de Santiago de Compostela (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
| | - Ana B. Crujeiras
- Epigenomics in Endocrinology and Nutrition Group, Epigenomics Unit, Instituto de Investigacion Sanitaria de Santiago de Compostela (IDIS), Complejo Hospitalario Universitario de Santiago de Compostela (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), 28029 Madrid, Spain
- Correspondence: or ; Tel.: +34-981-955-710
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14
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Chang X, Bian H, Xia M, Zhu X, Sun X, Yang X, Gao J, Lin H, Yan H, Gao X. Postprandial glucose is correlated with an increasing risk of liver fibrosis in Chinese patients with nonalcoholic fatty liver disease. DIABETES & METABOLISM 2022; 48:101377. [PMID: 35858659 DOI: 10.1016/j.diabet.2022.101377] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 07/10/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
AIM Type 2 diabetes (T2DM) is closely related to nonalcoholic fatty liver disease (NAFLD) and is an important risk factor for the progression of liver fibrosis, but the role of 2-h postprandial blood glucose (PPG) as a biomarker in this process remains unclear. This study was designed to investigate the relationship between PPG and liver fibrosis in Chinese NAFLD populations with or without T2DM. METHODS This study included three independent NAFLD populations: 1) 618 inpatients with T2DM or pre-diabetes, 2) 255 patients with T2DM or pre-diabetes who underwent liver biopsy, and 3) a prospective community-based cohort without diabetes who completed a median of 4.22 years follow-up. The degree of liver fibrosis was assessed by liver fibrosis stage in subjects with a liver biopsy, and by NAFLD fibrosis score (NFS) in subjects without liver biopsy. RESULTS In the first population, PPG {OR 0.02, [95% CI (0.01-0.03)], P< 0.001} was positively correlated with NFS. In the second population, an increasing PPG was associated with increase in the proportion of advanced liver fibrosis (P = 0.012). Multivariate line regression revealed that PPG {OR 0.03 [95% CI (0.00-0.06)], P = 0.049}was positively associated with liver fibrosis stages. In the third population, PPG {OR 0.103, [95% CI (0.011-0.194) P = 0.028} at baseline was positively associated with NFS at follow-up. Furthermore, changes in PPG were significantly associated with NFS change after follow-up. We did not find a similar association between fasting glucose or HbA1c and liver fibrosis. CONCLUSIONS PPG was independently associated with the severity of liver fibrosis in the Chinese NAFLD population.
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Affiliation(s)
- Xinxia Chang
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China
| | - Hua Bian
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China
| | - Mingfeng Xia
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China
| | - Xiaopeng Zhu
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China
| | - Xiaoyang Sun
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China
| | - Xinyu Yang
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China
| | - Jian Gao
- Center of Clinical Epidemiology and Evidence-based Medicine, Fudan University, Shanghai 200032, China; Department of Nutrition, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
| | - Huandong Lin
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China.
| | - Hongmei Yan
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China.
| | - Xin Gao
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Fudan Institute for Metabolic Diseases, Fudan University, Shanghai 200032, China
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15
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Savva C, Helguero LA, González-Granillo M, Melo T, Couto D, Angelin B, Domingues MR, Li X, Kutter C, Korach-André M. Molecular programming modulates hepatic lipid metabolism and adult metabolic risk in the offspring of obese mothers in a sex-specific manner. Commun Biol 2022; 5:1057. [PMID: 36195702 PMCID: PMC9532402 DOI: 10.1038/s42003-022-04022-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 09/22/2022] [Indexed: 11/09/2022] Open
Abstract
Male and female offspring of obese mothers are known to differ extensively in their metabolic adaptation and later development of complications. We investigate the sex-dependent responses in obese offspring mice with maternal obesity, focusing on changes in liver glucose and lipid metabolism. Here we show that maternal obesity prior to and during gestation leads to hepatic steatosis and inflammation in male offspring, while female offspring are protected. Females from obese mothers display important changes in hepatic transcriptional activity and triglycerides profile which may prevent the damaging effects of maternal obesity compared to males. These differences are sustained later in life, resulting in a better metabolic balance in female offspring. In conclusion, sex and maternal obesity drive differently transcriptional and posttranscriptional regulation of major metabolic processes in offspring liver, explaining the sexual dimorphism in obesity-associated metabolic risk. Sex and maternal obesity drive differently transcriptional and posttranscriptional regulation of major metabolic processes in the livers of female and male offspring, contributing to the sexual dimorphism in obesity-associated metabolic risk.
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Affiliation(s)
- Christina Savva
- Department of Medicine, Cardiometabolic Unit and Integrated Cardio Metabolic Center, Karolinska Institute, Stockholm, Sweden.,Clinical Department of Endocrinology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Luisa A Helguero
- Institute of Biomedicine, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | | | - Tânia Melo
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, Aveiro, Portugal.,CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Daniela Couto
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, Aveiro, Portugal.,CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Bo Angelin
- Department of Medicine, Cardiometabolic Unit and Integrated Cardio Metabolic Center, Karolinska Institute, Stockholm, Sweden.,Clinical Department of Endocrinology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Maria Rosário Domingues
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, Aveiro, Portugal.,CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Xidan Li
- Department of Medicine, Cardiometabolic Unit and Integrated Cardio Metabolic Center, Karolinska Institute, Stockholm, Sweden
| | - Claudia Kutter
- Department of Microbiology, Tumor and Cell Biology, Science for Life Laboratory, Karolinska Institute, Stockholm, Sweden
| | - Marion Korach-André
- Department of Medicine, Cardiometabolic Unit and Integrated Cardio Metabolic Center, Karolinska Institute, Stockholm, Sweden. .,Department of Gene Technology, Science for Life Laboratory, Royal Institute of Technology (KTH), Stockholm, Sweden.
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16
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Schonfeld M, Averilla J, Gunewardena S, Weinman SA, Tikhanovich I. Alcohol-associated fibrosis in females is mediated by female-specific activation of lysine demethylases KDM5B and KDM5C. Hepatol Commun 2022; 6:2042-2057. [PMID: 35468265 PMCID: PMC9315128 DOI: 10.1002/hep4.1967] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 03/17/2022] [Accepted: 04/03/2022] [Indexed: 12/15/2022] Open
Abstract
Alcohol-associated liver disease is a major cause of alcohol-related mortality. However, the mechanisms underlying disease progression are not fully understood. Recently we found that liver molecular pathways are altered by alcohol consumption differently in males and females. We were able to associate these sex-specific pathways with two upstream regulators: H3K4-specific demethylase enzymes KDM5B and KDM5C. Mice were fed the Lieber-DeCarli alcohol liquid diet for 3 weeks or a combination of a high-fat diet with alcohol in water for 16 weeks (western diet alcohol model [WDA] model). To assess the role of histone demethylases, mice were treated with AAV-shControl, AAV-shKdm5b, and/or AAV-shKdm5c and/or AAV-shAhR vectors. Gene expression and epigenetic changes after Kdm5b/5c knockdown were assessed by RNA-sequencing and H3K4me3 chromatin immunoprecipitation analysis. We found that less than 5% of genes affected by Kdm5b/Kdm5c knockdown were common between males and females. In females, Kdm5b/Kdm5c knockdown prevented fibrosis development in mice fed the WDA alcohol diet for 16 weeks and decreased fibrosis-associated gene expression in mice fed the Lieber-DeCarli alcohol liquid diet. In contrast, fibrosis was not affected by Kdm5b/Kdm5c knockdown in males. We found that KDM5B and KDM5C promote fibrosis in females through down-regulation of the aryl hydrocarbon receptor (AhR) pathway components in hepatic stellate cells. Kdm5b/Kdm5c knockdown resulted in an up-regulation of Ahr, Arnt, and Aip in female but not in male mice, thus preventing fibrosis development. Ahr knockdown in combination with Kdm5b/Kdm5c knockdown restored profibrotic gene expression. Conclusion: KDM5 demethylases contribute to differences between males and females in the alcohol response in the liver. The KDM5/AhR axis is a female-specific mechanism of fibrosis development in alcohol-fed mice.
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Affiliation(s)
- Michael Schonfeld
- Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKansasUSA
| | - Janice Averilla
- Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKansasUSA
| | - Sumedha Gunewardena
- Department of Molecular and Integrative PhysiologyUniversity of Kansas Medical CenterKansas CityKansasUSA
| | - Steven A. Weinman
- Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKansasUSA
- Liver CenterUniversity of Kansas Medical CenterKansas CityKansasUSA
- Kansas City VA Medical CenterKansas CityMissouriUSA
| | - Irina Tikhanovich
- Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKansasUSA
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17
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Nagral A, Bangar M, Menezes S, Bhatia S, Butt N, Ghosh J, Manchanayake JH, Mahtab MA, Singh SP. Gender Differences in Nonalcoholic Fatty Liver Disease. Euroasian J Hepatogastroenterol 2022; 12:S19-S25. [PMID: 36466099 PMCID: PMC9681575 DOI: 10.5005/jp-journals-10018-1370] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2023] Open
Abstract
UNLABELLED Nonalcoholic fatty liver disease (NAFLD) has currently emerged as the most common liver disorder in both developed and developing countries. It has been observed that NAFLD exhibits sexual dimorphism, and there is limited understanding on the sex differences in adults with NAFLD. Nonalcoholic fatty liver disease shows marked differences in prevalence and severity with regards to gender. There are considerable biological disparities between males and females attributed to differences in the chromosomal makeup and sex hormone levels, distinct from the gender differences resulting from the sociocultural influences that lead to differences in lifestyle, which have a significant impact on the pathogenesis of this complex disorder. A multitude of factors contributes to the gender disparities seen and need to be researched in-depth to better understand the mechanisms behind them and the therapeutic measures that can be taken. In this article, we will review the gender disparities seen in NAFLD, as well as recent studies highlighting certain gender-specific factors contributing to its varying prevalence and severity. HOW TO CITE THIS ARTICLE Nagral A, Bangar M, Menezes S, et al. Gender Differences in Nonalcoholic Fatty Liver Disease. Euroasian J Hepato-Gastroenterol 2022;12(Suppl 1):S19-S25.
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Affiliation(s)
- Aabha Nagral
- Department of Gastroenterology, Jaslok Hospital and Research Centre, Mumbai, Maharashtra, India; Apollo Hospital, Navi Mumbai, Maharashtra, India
| | - Manisha Bangar
- Division of Gastroenterology and Hepatology, Century Hospitals, Hyderabad, Telangana, India
| | - Sherna Menezes
- Department of Gastroenterology, Jaslok Hospital and Research Centre, Mumbai, Maharashtra, India
| | - Shobna Bhatia
- Department of Gastroenterology, Sir HN Reliance Foundation Hospital, Mumbai, Maharashtra, India
| | - Nazish Butt
- Department of Gastroenterology, Jinnah Postgraduate Medical Center, Karachi, Pakistan
| | - Jhumur Ghosh
- Department of Hepatology, MH Samorita Hospital and Medical College, Dhaka, Bangladesh
| | | | - Mamun Al Mahtab
- Department of Hepatology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
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18
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Goldfarb CN, Karri K, Pyatkov M, Waxman DJ. Interplay Between GH-regulated, Sex-biased Liver Transcriptome and Hepatic Zonation Revealed by Single-Nucleus RNA Sequencing. Endocrinology 2022; 163:6580481. [PMID: 35512247 PMCID: PMC9154260 DOI: 10.1210/endocr/bqac059] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Indexed: 11/19/2022]
Abstract
The zonation of liver metabolic processes is well-characterized; however, little is known about the cell type-specificity and zonation of sexually dimorphic gene expression or its growth hormone (GH)-dependent transcriptional regulators. We address these issues using single-nucleus RNA-sequencing of 32 000 nuclei representing 9 major liver cell types. Nuclei were extracted from livers from adult male and female mice; from males infused with GH continuously, mimicking the female plasma GH pattern; and from mice exposed to TCPOBOP, a xenobiotic agonist ligand of the nuclear receptor CAR that perturbs sex-biased gene expression. Analysis of these rich transcriptomic datasets revealed the following: 1) expression of sex-biased genes and their GH-dependent transcriptional regulators is primarily restricted to hepatocytes and is not a feature of liver nonparenchymal cells; 2) many sex-biased transcripts show sex-dependent zonation within the liver lobule; 3) gene expression is substantially feminized both in periportal and pericentral hepatocytes when male mice are infused with GH continuously; 4) sequencing nuclei increases the sensitivity for detecting thousands of nuclear-enriched long-noncoding RNAs (lncRNAs) and enables determination of their liver cell type-specificity, sex-bias and hepatocyte zonation profiles; 5) the periportal to pericentral hepatocyte cell ratio is significantly higher in male than female liver; and 6) TCPOBOP exposure disrupts both sex-specific gene expression and hepatocyte zonation within the liver lobule. These findings highlight the complex interconnections between hepatic sexual dimorphism and zonation at the single-cell level and reveal how endogenous hormones and foreign chemical exposure can alter these interactions across the liver lobule with large effects both on protein-coding genes and lncRNAs.
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Affiliation(s)
- Christine N Goldfarb
- Department of Biology, Boston University, Boston, Massachusetts 02215, USA
- Biomedical Engineering, Boston University, Boston, Massachusetts 02215, USA
| | - Kritika Karri
- Department of Biology, Boston University, Boston, Massachusetts 02215, USA
- Bioinformatics Program Boston University, Boston, Massachusetts 02215, USA
| | - Maxim Pyatkov
- Department of Biology, Boston University, Boston, Massachusetts 02215, USA
| | - David J Waxman
- Correspondence: David J. Waxman, PhD, Department of Biology, Boston University, 5 Cummington Mall, Boston, MA 02215, USA.
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19
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Abstract
Sex is a key risk factor for many types of cardiovascular disease. It is imperative to understand the mechanisms underlying sex differences to devise optimal preventive and therapeutic approaches for all individuals. Both biological sex (determined by sex chromosomes and gonadal hormones) and gender (social and cultural behaviors associated with femininity or masculinity) influence differences between men and women in disease susceptibility and pathology. Here, we focus on the application of experimental mouse models that elucidate the influence of 2 components of biological sex-sex chromosome complement (XX or XY) and gonad type (ovaries or testes). These models have revealed that in addition to well-known effects of gonadal hormones, sex chromosome complement influences cardiovascular risk factors, such as plasma cholesterol levels and adiposity, as well as the development of atherosclerosis and pulmonary hypertension. One mechanism by which sex chromosome dosage influences cardiometabolic traits is through sex-biased expression of X chromosome genes that escape X inactivation. These include chromatin-modifying enzymes that regulate gene expression throughout the genome. The identification of factors that determine sex-biased gene expression and cardiometabolic traits will expand our mechanistic understanding of cardiovascular disease processes and provide insight into sex differences that remain throughout the lifespan as gonadal hormone levels alter with age.
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Affiliation(s)
- Karen Reue
- Department of Human Genetics, David Geffen School of Medicine at UCLA
- Department of Medicine, David Geffen School of Medicine at UCLA
- Molecular Biology Institute, University of California, Los Angeles, CA 90095
| | - Carrie B. Wiese
- Department of Human Genetics, David Geffen School of Medicine at UCLA
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20
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Lynch EC, Liu Z, Liu L, Wang X, Zhang KK, Xie L. Disrupting Osr1 expression promoted hepatic steatosis and inflammation induced by high-fat diet in the mouse model. PLoS One 2022; 17:e0268344. [PMID: 35657825 PMCID: PMC9165803 DOI: 10.1371/journal.pone.0268344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 04/27/2022] [Indexed: 11/23/2022] Open
Abstract
NAFLD, regarded as the hepatic manifestation of metabolic syndrome, is the most common form of liver disease in the United States. The Odd-skipped related 1 (Osr1) gene was previously reported to play a critical role in embryonic development and as a cancer repressor gene, however its role in overnutrition induced fatty liver disease has never been explored. Induced by a high-fat diet (HFD) for 10-week, the development and the progression of NAFLD was evaluated in either Osr1 heterozygote (Osr1 group) or wildtype mice (WT group). The Osr1 mice, regardless of sex, exhibited more severe steatosis compared to WT. Upregulation of lipogenesis protein including Srebp1c was detected in the Osr1 group, together with impaired IRS2 expression and overactivated Akt/mTOR signaling. In addition, the Osr1 mice had decreased bile acid synthesis in the liver with depressed hepatic expression of Cyp7a1 and Cyp27a1. Furthermore, there was more macrophage infiltration with enhanced expression of Il-1β and TNF-α in the Osr1 liver, associated with overactivation of JNK and NF-κB signaling. In summary, our study showed that Osr1 plays an important role in regulating the lipid homeostasis and hepatic inflammation, whose disruption contributes to NAFLD progression.
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Affiliation(s)
- Ernest C. Lynch
- Department of Nutrition, Texas A&M University, College Station, TX, United States of America
| | - Zhimin Liu
- Department of Nutrition, Texas A&M University, College Station, TX, United States of America
| | - Lin Liu
- Department of Nutrition, Texas A&M University, College Station, TX, United States of America
| | - Xian Wang
- Department of Nutrition, Texas A&M University, College Station, TX, United States of America
| | - Ke K. Zhang
- Department of Nutrition, Texas A&M University, College Station, TX, United States of America
- Center for Epigenetics & Disease Prevention, Institute of Biosciences & Technology, College of Medicine, Texas A&M University, Houston, TX, United States of America
| | - Linglin Xie
- Department of Nutrition, Texas A&M University, College Station, TX, United States of America
- * E-mail:
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21
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Schonfeld M, Averilla J, Gunewardena S, Weinman SA, Tikhanovich I. Male-Specific Activation of Lysine Demethylases 5B and 5C Mediates Alcohol-Induced Liver Injury and Hepatocyte Dedifferentiation. Hepatol Commun 2022; 6:1373-1391. [PMID: 35084807 PMCID: PMC9134811 DOI: 10.1002/hep4.1895] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/13/2021] [Accepted: 12/22/2021] [Indexed: 12/11/2022] Open
Abstract
Alcohol-associated liver disease (ALD) is a major cause of alcohol-related mortality. Sex differences in sensitivity to ALD are well described, but these are often disregarded in studies of ALD development. We aimed to define sex-specific pathways in liver exposed to alcohol. Mice were fed the Lieber-DeCarli alcohol liquid diet or a combination of a high-fat diet with alcohol in water. Single-cell RNA sequencing (scRNA-Seq) was performed on liver cells from male and female mice. Mice were treated with adeno-associated virus (AAV)-short hairpin (sh)Control or AAV-sh lysine demethylase 5b (shKdm5b) and/or AAV-shKdm5c vectors. Changes after Kdm5b/5c knockdown were assessed by RNA-Seq and histone H3 lysine K4 (H3K4)me3 chromatin immunoprecipitation-Seq analysis. Using scRNA-Seq analysis, we found several sex-specific pathways induced by alcohol, including pathways related to lipid metabolism and hepatocyte differentiation. Bioinformatic analysis suggested that two epigenetic regulators, H3K4-specific lysine demethylases KDM5B and KDM5C, contribute to sex differences in alcohol effects. We found that in alcohol-fed male mice, KDM5B and KDM5C are involved in hepatocyte nuclear factor 4 alpha (Hnf4a) down-regulation, hepatocyte dedifferentiation, and an increase in fatty acid synthesis. This effect is mediated by alcohol-induced KDM5B and KDM5C recruitment to Hnf4a and other gene promoters in male but not in female mice. Kdm5b and Kdm5c knockdown or KDM5-inhibitor treatment prevented alcohol-induced lipid accumulation and restored levels of Hnf4a and other hepatocyte differentiation genes in male mice. In addition, Kdm5b knockdown prevented hepatocellular carcinoma development in male mice by up-regulating Hnf4a and decreasing tumor cell proliferation. Conclusion: Alcohol specifically activates KDM5 demethylases in male mice to promote alcohol-induced hepatocyte dedifferentiation and tumor development.
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Affiliation(s)
- Michael Schonfeld
- Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKSUSA
| | - Janice Averilla
- Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKSUSA
| | - Sumedha Gunewardena
- Department of Molecular and Integrative PhysiologyUniversity of Kansas Medical CenterKansas CityKSUSA
| | - Steven A. Weinman
- Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKSUSA
- Liver CenterUniversity of Kansas Medical CenterKansas CityKSUSA
- Kansas City VA Medical CenterKansas CityMOUSA
| | - Irina Tikhanovich
- Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKSUSA
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22
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Identification of gene biomarkers with expression profiles in patients with allergic rhinitis. Allergy Asthma Clin Immunol 2022; 18:20. [PMID: 35246242 PMCID: PMC8897927 DOI: 10.1186/s13223-022-00656-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 02/03/2022] [Indexed: 01/01/2023] Open
Abstract
Background Allergic rhinitis (AR) is an upper respiratory tract inflammation disease caused by IgE-mediated reactions against inhaled allergens. The incidence of AR is significantly increasing throughout the world. Hence, more specific, and sensitive gene biomarkers and understanding the underlying pathways are necessary to further explore the AR pathogenesis. Objective To identify gene biomarkers in nasal mucosa and in blood from AR patients which could be used in AR diagnosis. Methods The gene expression profiles of GSE43523 from nasal epithelial cells and GSE75011 from Th2-enriched CD4+ T cells in blood were downloaded from the Gene Expression Omnibus database. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses and protein–protein interaction (PPI) network analysis were conducted to investigate the functional changes of genes. The receiver operating characteristic (ROC) curves were used to assess the diagnostic values of the hub genes. Real-time quantitative PCR (RT-qPCR) was performed to validate the hub genes. Results Significant differentially enriched gene signatures in AR patients were identified in nasal epithelial cells (n-DEGs) and in blood (t-DEGs). Signatures associated with axoneme, extracellular matrix, collagen fibril organization, cell motility, calcium ion binding, and so on were more enriched in n-DEGs, whereas signatures associated with TNF signaling pathway, detoxification of inorganic compound, and cellular response to corticotropin-releasing hormone stimulus were enriched in t-DEGs. In addition, we identified 8 hub genes and 14 hub genes from n-DEGs and t-DEGs, respectively. The combination of POSTN in nasal mucosa and PENK and CDC25A in blood was constructed with a good AR predicting performance. The area under the curve (AUC) of the ROC curve of 3 hub genes’ combination was 0.98 for AR diagnosis. Conclusion This study utilized gene expression profiles and RT-qPCR validation on nasal mucosa and blood from AR patients to investigate the potential biomarkers for AR diagnosis. Supplementary Information The online version contains supplementary material available at 10.1186/s13223-022-00656-4.
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23
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Dumolt JH, Patel MS, Rideout TC. Gestational hypercholesterolemia programs hepatic steatosis in a sex-specific manner in ApoE-deficient mice. J Nutr Biochem 2022; 101:108945. [PMID: 35016999 DOI: 10.1016/j.jnutbio.2022.108945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 10/23/2021] [Accepted: 12/07/2021] [Indexed: 02/07/2023]
Abstract
Maternal hypercholesterolemia (MHC), a pathological condition characterized by an exaggerated rise in maternal serum cholesterol during pregnancy, may influence offspring hepatic lipid metabolism and increase the risk of nonalcoholic fatty liver disease (NAFLD). As NAFLD is characterized by a sexual dimorphic response, we assessed whether early-life exposure to excessive cholesterol influences the development of NAFLD in offspring and whether this occurs in a sex-specific manner. Female apoE-/- mice were randomly assigned to a control (CON) or a high cholesterol (CH; 0.15%) diet prior to breeding. At parturition, a cross-fostering approach was used to establish three groups: (1) normal cholesterol exposure throughout gestation and lactation (CON-CON); (2) excessive cholesterol exposure throughout gestation and lactation (CH-CH); and (3) excessive cholesterol exposure in the gestation period only (CH-CON). Adult male offspring (PND 84) exposed to excessive cholesterol during gestation only (CH-CON) demonstrated hepatic triglyceride (TG) accumulation and reduced lipogenic gene expression. However, male mice with a prolonged cholesterol exposure throughout gestation and lactation (CH-CH) had a similar, but not exacerbated hepatic response. Further, with the exception of higher serum TG in adult CH-CH females, evidence for a programming effect in female offspring was largely absent in comparison with males. These results indicate a sexual dimorphic response with respect to the effect of MHC on later life hepatic steatosis and highlight the gestation period as the most influential malprogramming window for hepatic lipid dysfunction in males.
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Affiliation(s)
- Jerad H Dumolt
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University of Buffalo, Buffalo, NY, USA; Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mulchand S Patel
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University of Buffalo, Buffalo, NY, USA
| | - Todd C Rideout
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University of Buffalo, Buffalo, NY, USA.
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24
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Stokar J, Gurt I, Cohen-Kfir E, Yakubovsky O, Hallak N, Benyamini H, Lishinsky N, Offir N, Tam J, Dresner-Pollak R. Hepatic Adropin is Regulated by Estrogen and Contributes to Adverse Metabolic Phenotypes in Ovariectomized Mice. Mol Metab 2022; 60:101482. [PMID: 35364299 PMCID: PMC9044006 DOI: 10.1016/j.molmet.2022.101482] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/13/2022] [Accepted: 03/24/2022] [Indexed: 12/02/2022] Open
Abstract
Objective Menopause is associated with visceral adiposity, hepatic steatosis and increased risk for cardiovascular disease. As estrogen replacement therapy is not suitable for all postmenopausal women, a need for alternative therapeutics and biomarkers has emerged. Methods 9-week-old C57BL/6 J female mice were subjected to ovariectomy (OVX) or SHAM surgery (n = 10 per group), fed a standard diet and sacrificed 6- & 12 weeks post-surgery. Results Increased weight gain, hepatic triglyceride content and changes in hepatic gene expression of Cyp17a1, Rgs16, Fitm1 as well as Il18, Rares2, Retn, Rbp4 in mesenteric visceral adipose tissue (VAT) were observed in OVX vs. SHAM. Liver RNA-sequencing 6-weeks post-surgery revealed changes in genes and microRNAs involved in fat metabolism in OVX vs. SHAM mice. Energy Homeostasis Associated gene (Enho) coding for the hepatokine adropin was significantly reduced in OVX mice livers and strongly inversely correlated with weight gain (r = −0.7 p < 0.001) and liver triglyceride content (r = −0.4, p = 0.04), with a similar trend for serum adropin. In vitro, Enho expression was tripled by 17β-estradiol in BNL 1 ME liver cells with increased adropin in supernatant. Analysis of open-access datasets revealed increased hepatic Enho expression in estrogen treated OVX mice and estrogen dependent ERα binding to Enho. Treatment of 5-month-old OVX mice with Adropin (i.p. 450 nmol/kg/twice daily, n = 4,5 per group) for 6-weeks reversed adverse adipokine gene expression signature in VAT, with a trended increase in lean body mass and decreased liver TG content with upregulation of Rgs16. Conclusions OVX is sufficient to induce deranged metabolism in adult female mice. Hepatic adropin is regulated by estrogen, negatively correlated with adverse OVX-induced metabolic phenotypes, which were partially reversed with adropin treatment. Adropin should be further explored as a potential therapeutic target and biomarker for menopause-related metabolic derangement. OVX increased body weight, liver fat & adverse visceral fat adipokine signature. OVX altered liver transcriptome & miRNA profile including fat metabolism pathways. Enho was downregulated by OVX & inversely correlated with weight gain & liver fat. Hepatic adropin expression was upregulated by estrogen in-vitro & in-vivo. Adropin treatment partially reversed OVX induced adverse metabolic phenotypes.
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25
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Martin-Grau M, Marrachelli VG, Monleon D. Rodent models and metabolomics in non-alcoholic fatty liver disease: What can we learn? World J Hepatol 2022; 14:304-318. [PMID: 35317178 PMCID: PMC8891675 DOI: 10.4254/wjh.v14.i2.304] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/13/2021] [Accepted: 01/29/2022] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) prevalence has increased drastically in recent decades, affecting up to 25% of the world’s population. NAFLD is a spectrum of different diseases that starts with asymptomatic steatosis and continues with development of an inflammatory response called steatohepatitis, which can progress to fibrosis. Several molecular and metabolic changes are required for the hepatocyte to finally vary its function; hence a “multiple hit” hypothesis seems a more accurate proposal. Previous studies and current knowledge suggest that in most cases, NAFLD initiates and progresses through most of nine hallmarks of the disease, although the triggers and mechanisms for these can vary widely. The use of animal models remains crucial for understanding the disease and for developing tools based on biological knowledge. Among certain requirements to be met, a good model must imitate certain aspects of the human NAFLD disorder, be reliable and reproducible, have low mortality, and be compatible with a simple and feasible method. Metabolism studies in these models provides a direct reflection of the workings of the cell and may be a useful approach to better understand the initiation and progression of the disease. Metabolomics seems a valid tool for studying metabolic pathways and crosstalk between organs affected in animal models of NAFLD and for the discovery and validation of relevant biomarkers with biological understanding. In this review, we provide a brief introduction to NAFLD hallmarks, the five groups of animal models available for studying NAFLD and the potential role of metabolomics in the study of experimental NAFLD.
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Affiliation(s)
- Maria Martin-Grau
- Department of Pathology, University of Valencia, Valencia 46010, Spain
| | - Vannina G Marrachelli
- Department of Physiology, University of Valencia, Valencia 46010, Spain
- Health Research Institute INCLIVA, Valencia 46010, Spain
| | - Daniel Monleon
- Department of Pathology, University of Valencia, Valencia 46010, Spain
- Health Research Institute INCLIVA, Valencia 46010, Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes), Madrid 28029, Spain
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26
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Pal P, Palui R, Ray S. Heterogeneity of non-alcoholic fatty liver disease: Implications for clinical practice and research activity. World J Hepatol 2021; 13:1584-1610. [PMID: 34904031 PMCID: PMC8637673 DOI: 10.4254/wjh.v13.i11.1584] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/29/2021] [Accepted: 10/14/2021] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a heterogeneous condition with a wide spectrum of clinical presentations and natural history and disease severity. There is also substantial inter-individual variation and variable response to a different therapy. This heterogeneity of NAFLD is in turn influenced by various factors primarily demographic/dietary factors, metabolic status, gut microbiome, genetic predisposition together with epigenetic factors. The differential impact of these factors over a variable period of time influences the clinical phenotype and natural history. Failure to address heterogeneity partly explains the sub-optimal response to current and emerging therapies for fatty liver disease. Consequently, leading experts across the globe have recently suggested a change in nomenclature of NAFLD to metabolic-associated fatty liver disease (MAFLD) which can better reflect current knowledge of heterogeneity and does not exclude concomitant factors for fatty liver disease (e.g. alcohol, viral hepatitis, etc.). Precise identification of disease phenotypes is likely to facilitate clinical trial recruitment and expedite translational research for the development of novel and effective therapies for NAFLD/MAFLD.
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Affiliation(s)
- Partha Pal
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad 500082, India
| | - Rajan Palui
- Department of Endocrinology, The Mission Hospital, Durgapur 713212, West Bengal, India
| | - Sayantan Ray
- Department of Endocrinology, Jagannath Gupta Institute of Medical Sciences and Hospital, Kolkata 700137, West Bengal, India
- Diabetes and Endocrinology, Apollo Clinic, Ballygunge, Kolkata 700019, West Bengal, India
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27
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Lefebvre P, Staels B. Hepatic sexual dimorphism - implications for non-alcoholic fatty liver disease. Nat Rev Endocrinol 2021; 17:662-670. [PMID: 34417588 DOI: 10.1038/s41574-021-00538-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/06/2021] [Indexed: 12/14/2022]
Abstract
The liver is often thought of as a single functional unit, but both its structural and functional architecture make it highly multivalent and adaptable. In any given physiological situation, the liver can maintain metabolic homeostasis, conduct appropriate inflammatory responses, carry out endobiotic and xenobiotic transformation and synthesis reactions, as well as store and release multiple bioactive molecules. Moreover, the liver is a very resilient organ. This resilience means that chronic liver diseases can go unnoticed for decades, yet culminate in life-threatening clinical complications once the adaptive capacity of the liver is overwhelmed. Non-alcoholic fatty liver disease (NAFLD) predisposes individuals to cirrhosis and increases liver-related and cardiovascular disease-related mortality. This Review discusses the accumulating evidence of sexual dimorphism in NAFLD, which is currently rarely considered in preclinical and clinical studies. Increased awareness of the mechanistic causes of hepatic sexual dimorphism could lead to improved understanding of the biological processes that are dysregulated in NAFLD, to the identification of relevant therapeutic targets and to improved risk stratification of patients with NAFLD undergoing therapeutic intervention.
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Affiliation(s)
- Philippe Lefebvre
- Université Lille, INSERM, CHU Lille, Institut Pasteur de Lille, Lille, France.
| | - Bart Staels
- Université Lille, INSERM, CHU Lille, Institut Pasteur de Lille, Lille, France
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28
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Lonardo A. Separating the apples from the oranges: from NAFLD heterogeneity to personalized medicine. EXPLORATION OF MEDICINE 2021. [DOI: 10.37349/emed.2021.00061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Recently, Arrese and Colleagues have published a review article entitled, “Insights into Nonalcoholic Fatty-Liver Disease (NAFLD) Heterogeneity” (Semin Liver Dis. 2021;41:421-34. doi: 10.1055/s-0041-1730927). This milestone publication clearly and exhaustively explains the multitude of pathogenic pathways involved in the development and progression of disease eventually conducive to heterogeneous clinical phenotypes and different disease outcomes. The present commentary first briefly discusses the biological grounds of NAFLD heterogeneity and then illustrates the work by Arrese et al. In conclusion, the presently adopted nomenclatures appear inadequate in rendering the complexity of disease in the individual patient. In order to adopt the principles of personalized care, what remains to be done is to propose and validate a simple and accurate classification system. This should give full consideration to the principal disease modifiers and should shape a scheme to be adopted in both clinical practice and in the research arena. Care should be taken to not neglect the systemic nature of disease.
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Affiliation(s)
- Amedeo Lonardo
- Department of Internal Medicine, Azienda Ospedaliero-Universitaria of Modena, 41100 Modena, Italy
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29
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Lonardo A. Separating the apples from the oranges: from NAFLD heterogeneity to personalized medicine. EXPLORATION OF MEDICINE 2021. [DOI: doi.org/10.37349/emed.2021.00061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Recently, Arrese and Colleagues have published a review article entitled, “Insights into Nonalcoholic Fatty-Liver Disease (NAFLD) Heterogeneity” (Semin Liver Dis. 2021;41:421-34. doi: 10.1055/s-0041-1730927). This milestone publication clearly and exhaustively explains the multitude of pathogenic pathways involved in the development and progression of disease eventually conducive to heterogeneous clinical phenotypes and different disease outcomes. The present commentary first briefly discusses the biological grounds of NAFLD heterogeneity and then illustrates the work by Arrese et al. In conclusion, the presently adopted nomenclatures appear inadequate in rendering the complexity of disease in the individual patient. In order to adopt the principles of personalized care, what remains to be done is to propose and validate a simple and accurate classification system. This should give full consideration to the principal disease modifiers and should shape a scheme to be adopted in both clinical practice and in the research arena. Care should be taken to not neglect the systemic nature of disease.
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Affiliation(s)
- Amedeo Lonardo
- Department of Internal Medicine, Azienda Ospedaliero-Universitaria of Modena, 41100 Modena, Italy
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30
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Niu L, Sulek K, Vasilopoulou CG, Santos A, Wewer Albrechtsen NJ, Rasmussen S, Meier F, Mann M. Defining NASH from a Multi-Omics Systems Biology Perspective. J Clin Med 2021; 10:jcm10204673. [PMID: 34682795 PMCID: PMC8538576 DOI: 10.3390/jcm10204673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/01/2021] [Accepted: 10/08/2021] [Indexed: 12/11/2022] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a chronic liver disease affecting up to 6.5% of the general population. There is no simple definition of NASH, and the molecular mechanism underlying disease pathogenesis remains elusive. Studies applying single omics technologies have enabled a better understanding of the molecular profiles associated with steatosis and hepatic inflammation—the commonly accepted histologic features for diagnosing NASH, as well as the discovery of novel candidate biomarkers. Multi-omics analysis holds great potential to uncover new insights into disease mechanism through integrating multiple layers of molecular information. Despite the technical and computational challenges associated with such efforts, a few pioneering studies have successfully applied multi-omics technologies to investigate NASH. Here, we review the most recent technological developments in mass spectrometry (MS)-based proteomics, metabolomics, and lipidomics. We summarize multi-omics studies and emerging omics biomarkers in NASH and highlight the biological insights gained through these integrated analyses.
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Affiliation(s)
- Lili Niu
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (K.S.); (A.S.); (N.J.W.A.); (S.R.); (M.M.)
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany; (C.G.V.); (F.M.)
- Correspondence: ; Tel.: +45-3114-6118
| | - Karolina Sulek
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (K.S.); (A.S.); (N.J.W.A.); (S.R.); (M.M.)
- Systems Medicine, Steno Diabetes Center Copenhagen, 2820 Gentofte, Denmark
| | - Catherine G. Vasilopoulou
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany; (C.G.V.); (F.M.)
| | - Alberto Santos
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (K.S.); (A.S.); (N.J.W.A.); (S.R.); (M.M.)
- Center for Health Data Science, University of Copenhagen, 2200 Copenhagen, Denmark
- Big Data Institute, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LF, UK
| | - Nicolai J. Wewer Albrechtsen
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (K.S.); (A.S.); (N.J.W.A.); (S.R.); (M.M.)
- Department of Clinical Biochemistry, Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Simon Rasmussen
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (K.S.); (A.S.); (N.J.W.A.); (S.R.); (M.M.)
| | - Florian Meier
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany; (C.G.V.); (F.M.)
- Functional Proteomics, Jena University Hospital, 07747 Jena, Germany
| | - Matthias Mann
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (K.S.); (A.S.); (N.J.W.A.); (S.R.); (M.M.)
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany; (C.G.V.); (F.M.)
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31
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Hartman RJG, Mokry M, Pasterkamp G, den Ruijter HM. Sex-dependent gene co-expression in the human body. Sci Rep 2021; 11:18758. [PMID: 34548535 PMCID: PMC8455523 DOI: 10.1038/s41598-021-98059-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 08/11/2021] [Indexed: 11/09/2022] Open
Abstract
Many pathophysiological mechanisms in human health and disease are dependent on sex. Systems biology approaches are successfully used to decipher human disease etiology, yet the effect of sex on gene network biology is mostly unknown. To address this, we used RNA-sequencing data of over 700 individuals spanning 24 tissues from the Genotype-Tissue Expression project to generate a whole-body gene co-expression map and quantified the sex differences per tissue. We found that of the 13,787 genes analyzed in 24 tissues, 29.5% of the gene co-expression is influenced by sex. For example, skeletal muscle was predominantly enriched with genes co-expressed stronger in males, whereas thyroid primarily contained genes co-expressed stronger in females. This was accompanied by consistent sex differences in pathway enrichment, including hypoxia, epithelial-to-mesenchymal transition, and inflammation over the human body. Furthermore, multi-organ analyses revealed consistent sex-dependent gene co-expression over numerous tissues which was accompanied by enrichment of transcription factor binding motifs in the promoters of these genes. Finally, we show that many sex-biased genes are associated with sex-biased diseases, such as autoimmunity and cancer, and more often the target of FDA-approved drugs than non-sexbiased genes. Our study suggests that sex affects biological gene networks by differences in gene co-expression and that attention to the effect of sex on biological responses to medical drugs is warranted.
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Affiliation(s)
- Robin J G Hartman
- Laboratory of Experimental Cardiology, University Medical Center Utrecht, University Utrecht, Heidelberglaan 100, 3584CX, Utrecht, The Netherlands
| | - Michal Mokry
- Laboratory of Experimental Cardiology, University Medical Center Utrecht, University Utrecht, Heidelberglaan 100, 3584CX, Utrecht, The Netherlands.,Central Diagnostics Laboratory, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Gerard Pasterkamp
- Central Diagnostics Laboratory, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Hester M den Ruijter
- Laboratory of Experimental Cardiology, University Medical Center Utrecht, University Utrecht, Heidelberglaan 100, 3584CX, Utrecht, The Netherlands.
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Della Torre S. Beyond the X Factor: Relevance of Sex Hormones in NAFLD Pathophysiology. Cells 2021; 10:2502. [PMID: 34572151 PMCID: PMC8470830 DOI: 10.3390/cells10092502] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/12/2021] [Accepted: 09/14/2021] [Indexed: 12/12/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a major health issue worldwide, being frequently associated with obesity, unbalanced dietary regimens, and reduced physical activity. Despite their greater adiposity and reduced physical activity, women show a lower risk of developing NAFLD in comparison to men, likely a consequence of a sex-specific regulation of liver metabolism. In the liver, sex differences in the uptake, synthesis, oxidation, deposition, and mobilization of lipids, as well as in the regulation of inflammation, are associated with differences in NAFLD prevalence and progression between men and women. Given the major role of sex hormones in driving hepatic sexual dimorphism, this review will focus on the role of sex hormones and their signaling in the regulation of hepatic metabolism and in the molecular mechanisms triggering NAFLD development and progression.
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Affiliation(s)
- Sara Della Torre
- Department of Pharmaceutical Sciences, University of Milan, Via Balzaretti 9, 20133 Milan, Italy
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33
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Zuo Y, Wei D, Zhu C, Naveed O, Hong W, Yang X. Unveiling the Pathogenesis of Psychiatric Disorders Using Network Models. Genes (Basel) 2021; 12:1101. [PMID: 34356117 PMCID: PMC8304351 DOI: 10.3390/genes12071101] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 01/13/2023] Open
Abstract
Psychiatric disorders are complex brain disorders with a high degree of genetic heterogeneity, affecting millions of people worldwide. Despite advances in psychiatric genetics, the underlying pathogenic mechanisms of psychiatric disorders are still largely elusive, which impedes the development of novel rational therapies. There has been accumulating evidence suggesting that the genetics of complex disorders can be viewed through an omnigenic lens, which involves contextualizing genes in highly interconnected networks. Thus, applying network-based multi-omics integration methods could cast new light on the pathophysiology of psychiatric disorders. In this review, we first provide an overview of the recent advances in psychiatric genetics and highlight gaps in translating molecular associations into mechanistic insights. We then present an overview of network methodologies and review previous applications of network methods in the study of psychiatric disorders. Lastly, we describe the potential of such methodologies within a multi-tissue, multi-omics approach, and summarize the future directions in adopting diverse network approaches.
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Affiliation(s)
- Yanning Zuo
- Department of Biological Chemistry, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA; (Y.Z.); (D.W.); (W.H.)
- Department of Neurobiology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA
- Department of Integrative Biology and Physiology, University of California at Los Angeles, Los Angeles, CA 90095, USA; (C.Z.); (O.N.)
| | - Don Wei
- Department of Biological Chemistry, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA; (Y.Z.); (D.W.); (W.H.)
- Department of Neurobiology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA
- Department of Psychiatry, Semel Institute, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - Carissa Zhu
- Department of Integrative Biology and Physiology, University of California at Los Angeles, Los Angeles, CA 90095, USA; (C.Z.); (O.N.)
| | - Ormina Naveed
- Department of Integrative Biology and Physiology, University of California at Los Angeles, Los Angeles, CA 90095, USA; (C.Z.); (O.N.)
| | - Weizhe Hong
- Department of Biological Chemistry, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA; (Y.Z.); (D.W.); (W.H.)
- Department of Neurobiology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA
- Brain Research Institute, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - Xia Yang
- Department of Integrative Biology and Physiology, University of California at Los Angeles, Los Angeles, CA 90095, USA; (C.Z.); (O.N.)
- Brain Research Institute, University of California at Los Angeles, Los Angeles, CA 90095, USA
- Institute for Quantitative and Computational Biosciences, University of California at Los Angeles, Los Angeles, CA 90095, USA
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Vandel J, Dubois-Chevalier J, Gheeraert C, Derudas B, Raverdy V, Thuillier D, Gaal L, Francque S, Pattou F, Staels B, Eeckhoute J, Lefebvre P. Hepatic Molecular Signatures Highlight the Sexual Dimorphism of Nonalcoholic Steatohepatitis (NASH). Hepatology 2021; 73:920-936. [PMID: 32394476 PMCID: PMC8048532 DOI: 10.1002/hep.31312] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Nonalcoholic steatohepatitis (NASH) is considered as a pivotal stage in nonalcoholic fatty liver disease (NAFLD) progression, given that it paves the way for severe liver injuries such as fibrosis and cirrhosis. The etiology of human NASH is multifactorial, and identifying reliable molecular players and/or biomarkers has proven difficult. Together with the inappropriate consideration of risk factors revealed by epidemiological studies (altered glucose homeostasis, obesity, ethnicity, sex, etc.), the limited availability of representative NASH cohorts with associated liver biopsies, the gold standard for NASH diagnosis, probably explains the poor overlap between published "omics"-defined NASH signatures. APPROACH AND RESULTS Here, we have explored transcriptomic profiles of livers starting from a 910-obese-patient cohort, which was further stratified based on stringent histological characterization, to define "NoNASH" and "NASH" patients. Sex was identified as the main factor for data heterogeneity in this cohort. Using powerful bootstrapping and random forest (RF) approaches, we identified reliably differentially expressed genes participating in distinct biological processes in NASH as a function of sex. RF-calculated gene signatures identified NASH patients in independent cohorts with high accuracy. CONCLUSIONS This large-scale analysis of transcriptomic profiles from human livers emphasized the sexually dimorphic nature of NASH and its link with fibrosis, calling for the integration of sex as a major determinant of liver responses to NASH progression and responses to drugs.
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Affiliation(s)
- Jimmy Vandel
- Univ. LilleInserm, CHU LilleInstitut Pasteur de LilleU1011-EGIDLilleFrance
| | | | - Céline Gheeraert
- Univ. LilleInserm, CHU LilleInstitut Pasteur de LilleU1011-EGIDLilleFrance
| | - Bruno Derudas
- Univ. LilleInserm, CHU LilleInstitut Pasteur de LilleU1011-EGIDLilleFrance
| | | | | | - Luc Gaal
- Department of Endocrinology, Diabetology and MetabolismAntwerp University HospitalEdegem (Antwerp)Belgium.,Laboratory of Experimental Medicine and Pediatrics (LEMP)University of AntwerpWilrijk (Antwerp)Belgium
| | - Sven Francque
- Laboratory of Experimental Medicine and Pediatrics (LEMP)University of AntwerpWilrijk (Antwerp)Belgium.,Department of Gastroenterology and HepatologyAntwerp University HospitalEdegem (Antwerp)Belgium
| | | | - Bart Staels
- Univ. LilleInserm, CHU LilleInstitut Pasteur de LilleU1011-EGIDLilleFrance
| | - Jérôme Eeckhoute
- Univ. LilleInserm, CHU LilleInstitut Pasteur de LilleU1011-EGIDLilleFrance
| | - Philippe Lefebvre
- Univ. LilleInserm, CHU LilleInstitut Pasteur de LilleU1011-EGIDLilleFrance
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35
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Shi YX, Chen XY, Qiu HN, Jiang WR, Zhang MY, Huang YP, Ji YP, Zhang S, Li CJ, Lin JN. Visceral fat area to appendicular muscle mass ratio as a predictor for nonalcoholic fatty liver disease independent of obesity. Scand J Gastroenterol 2021; 56:312-320. [PMID: 33535004 DOI: 10.1080/00365521.2021.1879244] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Obesity and sarcopenia are known to be closely related to nonalcoholic fatty liver disease (NAFLD). We attempted to explore the combined influence of fat and muscle tissue on NAFLD by using visceral fat area to appendicular muscle mass ratio (VAR) as a novel parameter. MATERIAL AND METHODS In this cross-sectional study, a total of 3255 adults (1399 men and 1856 women) coming for a health examination were enrolled. NAFLD was diagnosed using ultrasound and VAR was measured by bioelectrical impedance analyzer. RESULTS The prevalence of NAFLD was 46.5% in men and 26.6% in women. VAR differed significantly between subjects with and without NAFLD (4.27 vs. 3.26 in men, 7.89 vs. 5.01 in women, respectively, p < .001). Logistic regression analysis determined VAR as a risk factor for NAFLD, and the multivariable-adjusted odds ratios in the highest VAR quartile was 9.57 (95%CI: 5.98-15.30) for men and 12.37 (95%CI: 6.37-24.05) for women. From the receiver operating characteristic analysis, the area under the curve was 0.767 and 0.834, with the suitable cut-off VAR value of 3.469 and 6.357 for men and women, respectively. To control the influence of obesity, all subjects were stratified according to their BMI. For each BMI group, individuals with VAR above the cut-off value had significant higher prevalence and risk of NAFLD, with odds ratios ranging from 1.76 to 4.75. CONCLUSIONS Increased VAR is strongly associated with higher risk of NAFLD in both sexes independent of obesity and can serve as a screening reference for NAFLD.
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Affiliation(s)
- Ying-Xin Shi
- Graduate School, Tianjin Medical University, Tianjin, China.,Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Xiang-Yu Chen
- Graduate School, Tianjin Medical University, Tianjin, China.,Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Hui-Na Qiu
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Wei-Ran Jiang
- Orofacial Pain and TMJ Disorders, Eastman Institute for Oral Health, University of Rochester, New York, NY, USA
| | | | - Ya-Ping Huang
- Graduate School, Tianjin Medical University, Tianjin, China.,Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Yun-Ping Ji
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Shi Zhang
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Chun-Jun Li
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Jing-Na Lin
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
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CD73 Maintains Hepatocyte Metabolic Integrity and Mouse Liver Homeostasis in a Sex-Dependent Manner. Cell Mol Gastroenterol Hepatol 2021; 12:141-157. [PMID: 33516905 PMCID: PMC8082562 DOI: 10.1016/j.jcmgh.2021.01.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 01/22/2021] [Accepted: 01/22/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Metabolic imbalance and inflammation are common features of chronic liver diseases. Molecular factors controlling these mechanisms represent potential therapeutic targets. CD73 is the major enzyme that dephosphorylates extracellular adenosine monophosphate (AMP) to form the anti-inflammatory adenosine. CD73 is expressed on pericentral hepatocytes, which are important for long-term liver homeostasis. We aimed to determine if CD73 has nonredundant hepatoprotective functions. METHODS Liver-specific CD73 knockout (CD73-LKO) mice were generated by targeting the Nt5e gene in hepatocytes. The CD73-LKO mice and hepatocytes were characterized using multiple approaches. RESULTS Deletion of hepatocyte Nt5e resulted in an approximately 70% reduction in total liver CD73 protein (P < .0001). Male and female CD73-LKO mice developed normally during the first 21 weeks without significant liver phenotypes. Between 21 and 42 weeks, the CD73-LKO mice developed spontaneous-onset liver disease, with significant severity in male mice. Middle-aged male CD73-LKO mice showed hepatocyte swelling and ballooning (P < .05), inflammation (P < .01), and variable steatosis. Female CD73-LKO mice had lower serum albumin levels (P < .05) and increased inflammatory genes (P < .01), but did not show the spectrum of histopathologic changes in male mice, potentially owing to compensatory induction of adenosine receptors. Serum analysis and proteomic profiling of hepatocytes from male CD73-LKO mice showed significant metabolic imbalance, with increased blood urea nitrogen (P < .0001) and impairments in major metabolic pathways, including oxidative phosphorylation and AMP-activated protein kinase (AMPK) signaling. There was significant hypophosphorylation of AMPK substrates in CD73-LKO livers (P < .0001), while in isolated hepatocytes treated with AMP, soluble CD73 induced AMPK activation (P < .001). CONCLUSIONS Hepatocyte CD73 supports long-term metabolic liver homeostasis through AMPK in a sex-dependent manner. These findings have implications for human liver diseases marked by CD73 dysregulation.
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37
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Blencowe M, Ahn IS, Saleem Z, Luk H, Cely I, Mäkinen VP, Zhao Y, Yang X. Gene networks and pathways for plasma lipid traits via multitissue multiomics systems analysis. J Lipid Res 2021; 62:100019. [PMID: 33561811 PMCID: PMC7873371 DOI: 10.1194/jlr.ra120000713] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 12/04/2020] [Accepted: 12/23/2020] [Indexed: 12/13/2022] Open
Abstract
Genome-wide association studies (GWASs) have implicated ∼380 genetic loci for plasma lipid regulation. However, these loci only explain 17-27% of the trait variance, and a comprehensive understanding of the molecular mechanisms has not been achieved. In this study, we utilized an integrative genomics approach leveraging diverse genomic data from human populations to investigate whether genetic variants associated with various plasma lipid traits, namely, total cholesterol, high and low density lipoprotein cholesterol (HDL and LDL), and triglycerides, from GWASs were concentrated on specific parts of tissue-specific gene regulatory networks. In addition to the expected lipid metabolism pathways, gene subnetworks involved in "interferon signaling," "autoimmune/immune activation," "visual transduction," and "protein catabolism" were significantly associated with all lipid traits. In addition, we detected trait-specific subnetworks, including cadherin-associated subnetworks for LDL; glutathione metabolism for HDL; valine, leucine, and isoleucine biosynthesis for total cholesterol; and insulin signaling and complement pathways for triglyceride. Finally, by using gene-gene relations revealed by tissue-specific gene regulatory networks, we detected both known (e.g., APOH, APOA4, and ABCA1) and novel (e.g., F2 in adipose tissue) key regulator genes in these lipid-associated subnetworks. Knockdown of the F2 gene (coagulation factor II, thrombin) in 3T3-L1 and C3H10T1/2 adipocytes altered gene expression of Abcb11, Apoa5, Apof, Fabp1, Lipc, and Cd36; reduced intracellular adipocyte lipid content; and increased extracellular lipid content, supporting a link between adipose thrombin and lipid regulation. Our results shed light on the complex mechanisms underlying lipid metabolism and highlight potential novel targets for lipid regulation and lipid-associated diseases.
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Affiliation(s)
- Montgomery Blencowe
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA; Molecular, Cellular, and Integrative Physiology Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA, USA
| | - In Sook Ahn
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Zara Saleem
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Helen Luk
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ingrid Cely
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ville-Petteri Mäkinen
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA; South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Yuqi Zhao
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Xia Yang
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA; Molecular, Cellular, and Integrative Physiology Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA, USA; Interdepartmental Program of Bioinformatics, University of California, Los Angeles, Los Angeles, CA, USA.
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38
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Genetics of Polygenic Metabolic Liver Disease. SYSTEMS MEDICINE 2021. [DOI: 10.1016/b978-0-12-801238-3.11596-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Brulport A, Vaiman D, Bou-Maroun E, Chagnon MC, Corre LL. Hepatic transcriptome and DNA methylation patterns following perinatal and chronic BPS exposure in male mice. BMC Genomics 2020; 21:881. [PMID: 33297965 PMCID: PMC7727143 DOI: 10.1186/s12864-020-07294-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 11/28/2020] [Indexed: 11/21/2022] Open
Abstract
Background Bisphenol S (BPS) is a common bisphenol A (BPA) substitute, since BPA is virtually banned worldwide. However, BPS and BPA have both endocrine disrupting properties. Their effects appear mostly in adulthood following perinatal exposures. The objective of the present study was to investigate the impact of perinatal and chronic exposure to BPS at the low dose of 1.5 μg/kg body weight/day on the transcriptome and methylome of the liver in 23 weeks-old C57BL6/J male mice. Results This multi-omic study highlights a major impact of BPS on gene expression (374 significant deregulated genes) and Gene Set Enrichment Analysis show an enrichment focused on several biological pathways related to metabolic liver regulation. BPS exposure also induces a hypomethylation in 58.5% of the differentially methylated regions (DMR). Systematic connections were not found between gene expression and methylation profile excepted for 18 genes, including 4 genes involved in lipid metabolism pathways (Fasn, Hmgcr, Elovl6, Lpin1), which were downregulated and featured differentially methylated CpGs in their exons or introns. Conclusions This descriptive study shows an impact of BPS on biological pathways mainly related to an integrative disruption of metabolism (energy metabolism, detoxification, protein and steroid metabolism) and, like most high-throughput studies, contributes to the identification of potential exposure biomarkers. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12864-020-07294-3.
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Affiliation(s)
- Axelle Brulport
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France.,AgroSup, LNC UMR1231, 1 Esplanade Erasme, 21000, Dijon, France.,Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Daniel Vaiman
- From Gametes to Birth Team (FGTB), INSERM, U1016, Institut Cochin, F-75014, Paris, France.,CNRS UMR8104, F-75014, Paris, France.,Université Sorbonne Paris Cité, F-75014, Paris, France
| | - Elias Bou-Maroun
- Université de Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, Procédés Alimentaires et Microbiologiques, F-21000, Dijon, France
| | - Marie-Christine Chagnon
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France.,AgroSup, LNC UMR1231, 1 Esplanade Erasme, 21000, Dijon, France.,Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Ludovic Le Corre
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France. .,AgroSup, LNC UMR1231, 1 Esplanade Erasme, 21000, Dijon, France. .,Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France.
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40
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Melia T, Waxman DJ. Genetic factors contributing to extensive variability of sex-specific hepatic gene expression in Diversity Outbred mice. PLoS One 2020; 15:e0242665. [PMID: 33264334 PMCID: PMC7710091 DOI: 10.1371/journal.pone.0242665] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 11/09/2020] [Indexed: 12/12/2022] Open
Abstract
Sex-specific transcription characterizes hundreds of genes in mouse liver, many implicated in sex-differential drug and lipid metabolism and disease susceptibility. While the regulation of liver sex differences by growth hormone-activated STAT5 is well established, little is known about autosomal genetic factors regulating the sex-specific liver transcriptome. Here we show, using genotyping and expression data from a large population of Diversity Outbred mice, that genetic factors work in tandem with growth hormone to control the individual variability of hundreds of sex-biased genes, including many long non-coding RNA genes. Significant associations between single nucleotide polymorphisms and sex-specific gene expression were identified as expression quantitative trait loci (eQTLs), many of which showed strong sex-dependent associations. Remarkably, autosomal genetic modifiers of sex-specific genes were found to account for more than 200 instances of gain or loss of sex-specificity across eight Diversity Outbred mouse founder strains. Sex-biased STAT5 binding sites and open chromatin regions with strain-specific variants were significantly enriched at eQTL regions regulating correspondingly sex-specific genes, supporting the proposed functional regulatory nature of the eQTL regions identified. Binding of the male-biased, growth hormone-regulated repressor BCL6 was most highly enriched at trans-eQTL regions controlling female-specific genes. Co-regulated gene clusters defined by overlapping eQTLs included sets of highly correlated genes from different chromosomes, further supporting trans-eQTL action. These findings elucidate how an unexpectedly large number of autosomal factors work in tandem with growth hormone signaling pathways to regulate the individual variability associated with sex differences in liver metabolism and disease.
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Affiliation(s)
- Tisha Melia
- Department of Biology and Bioinformatics Program, Boston University, Boston, Massachusetts, United States of America
| | - David J. Waxman
- Department of Biology and Bioinformatics Program, Boston University, Boston, Massachusetts, United States of America
- * E-mail:
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Guo J, Zhang S, Fang L, Huang J, Wang Q, Wang C, Chen M. In utero exposure to phenanthrene induces hepatic steatosis in F1 adult female mice. CHEMOSPHERE 2020; 258:127360. [PMID: 32554016 DOI: 10.1016/j.chemosphere.2020.127360] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/28/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Environmental pollutants are thought to be a risk factor for the prevalence of hepatic steatosis. Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous, and human exposure is inevitable. In the present study, phenanthrene (Phe) was used as a representative PAH to investigate the effects of in utero exposure to PAH on hepatic lipid metabolism and the toxicological mechanism involved. Pregnant mice (C57BL/6J) were orally administered Phe (0, 60, 600 and 6000 μg kg-1 body weight) once every 3 days with 6 doses in total. F1 female mice aged 125 days showed significantly elevated hepatic lipid levels in the liver. The protein expression of hepatic peroxisome proliferator-activated receptors (PPARβ and PPARγ) and retinoid X receptors (RXRs) was upregulated; the transcription of genes related to lipogenesis, such as srebp1 (encoding sterol regulatory element binding proteins), acca (acetyl-CoA carboxylase), fasn (fatty acid synthase) and pcsk9 (proprotein convertase subtilisin/kexin type 9), showed an upregulation, while the mRNA levels of the lipolysis gene lcat (encoding lecithin cholesterol acyl transferase) were downregulated. These results could be responsible for lipid accumulation. The promoter methylation levels of pparγ were reduced and were the lowest in the 600 μg kg-1 group, and the promoter methylation levels of lcat were significantly increased in all the Phe treatments. These changes were matched with the alterations in their mRNA levels, suggesting that prenatal Phe exposure could induce abnormal lipid metabolism in later life via epigenetic modification.
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Affiliation(s)
- Jiaojiao Guo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Shenli Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Lu Fang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Jie Huang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Qian Wang
- College of Environment & Ecology, Xiamen University, Xiamen, PR China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China.
| | - Meng Chen
- College of Environment & Ecology, Xiamen University, Xiamen, PR China.
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42
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Della Torre S. Non-alcoholic Fatty Liver Disease as a Canonical Example of Metabolic Inflammatory-Based Liver Disease Showing a Sex-Specific Prevalence: Relevance of Estrogen Signaling. Front Endocrinol (Lausanne) 2020; 11:572490. [PMID: 33071979 PMCID: PMC7531579 DOI: 10.3389/fendo.2020.572490] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/20/2020] [Indexed: 12/11/2022] Open
Abstract
There is extensive evidence supporting the interplay between metabolism and immune response, that have evolved in close relationship, sharing regulatory molecules and signaling systems, to support biological functions. Nowadays, the disruption of this interaction in the context of obesity and overnutrition underlies the increasing incidence of many inflammatory-based metabolic diseases, even in a sex-specific fashion. During evolution, the interplay between metabolism and reproduction has reached a degree of complexity particularly high in female mammals, likely to ensure reproduction only under favorable conditions. Several factors may account for differences in the incidence and progression of inflammatory-based metabolic diseases between females and males, thus contributing to age-related disease development and difference in life expectancy between the two sexes. Among these factors, estrogens, acting mainly through Estrogen Receptors (ERs), have been reported to regulate several metabolic pathways and inflammatory processes particularly in the liver, the metabolic organ showing the highest degree of sexual dimorphism. This review aims to investigate on the interaction between metabolism and inflammation in the liver, focusing on the relevance of estrogen signaling in counteracting the development and progression of non-alcoholic fatty liver disease (NAFLD), a canonical example of metabolic inflammatory-based liver disease showing a sex-specific prevalence. Understanding the role of estrogens/ERs in the regulation of hepatic metabolism and inflammation may provide the basis for the development of sex-specific therapeutic strategies for the management of such an inflammatory-based metabolic disease and its cardio-metabolic consequences.
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Affiliation(s)
- Sara Della Torre
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
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43
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Yang X. Multitissue Multiomics Systems Biology to Dissect Complex Diseases. Trends Mol Med 2020; 26:718-728. [PMID: 32439301 PMCID: PMC7395877 DOI: 10.1016/j.molmed.2020.04.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 04/18/2020] [Accepted: 04/26/2020] [Indexed: 12/20/2022]
Abstract
Most complex diseases involve genetic and environmental risk factors, engage multiple cells and tissues, and follow a polygenic or omnigenic model depicting numerous genes contributing to pathophysiology. These multidimensional complexities pose challenges to traditional approaches that examine individual factors. In turn, multitissue multiomics systems biology has emerged to comprehensively elucidate within- and cross-tissue molecular networks underlying gene-by-environment interactions and contributing to complex diseases. The power of systems biology in retrieving novel insights and formulating new hypotheses has been well documented. However, the field faces various challenges that call for debate and action. In this opinion article, I discuss the concepts, benefits, current state, and challenges of the field and point to the next steps toward network-based systems medicine.
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Affiliation(s)
- Xia Yang
- Department of Integrative Biology and Physiology, University of California, Los Angeles, CA, USA.
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44
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Eslam M, Sanyal AJ, George J, Neuschwander-Tetri B, Tiribelli C, Kleiner DE, Brunt E, Bugianesi E, Yki-Järvinen H, Grønbæk H, Cortez-Pinto H, George J, Fan J, Valenti L, Abdelmalek M, Romero-Gomez M, Rinella M, Arrese M, Eslam M, Bedossa P, Newsome PN, Anstee QM, Jalan R, Bataller R, Loomba R, Sookoian S, Sarin SK, Harrison S, Kawaguchi T, Wong VWS, Ratziu V, Yilmaz Y, Younossi Z. MAFLD: A Consensus-Driven Proposed Nomenclature for Metabolic Associated Fatty Liver Disease. Gastroenterology 2020; 158:1999-2014.e1. [PMID: 32044314 DOI: 10.1053/j.gastro.2019.11.312] [Citation(s) in RCA: 1768] [Impact Index Per Article: 442.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/27/2019] [Accepted: 11/05/2019] [Indexed: 12/02/2022]
Abstract
Fatty liver associated with metabolic dysfunction is common, affects a quarter of the population, and has no approved drug therapy. Although pharmacotherapies are in development, response rates appear modest. The heterogeneous pathogenesis of metabolic fatty liver diseases and inaccuracies in terminology and definitions necessitate a reappraisal of nomenclature to inform clinical trial design and drug development. A group of experts sought to integrate current understanding of patient heterogeneity captured under the acronym nonalcoholic fatty liver disease (NAFLD) and provide suggestions on terminology that more accurately reflects pathogenesis and can help in patient stratification for management. Experts reached consensus that NAFLD does not reflect current knowledge, and metabolic (dysfunction) associated fatty liver disease "MAFLD" was suggested as a more appropriate overarching term. This opens the door for efforts from the research community to update the nomenclature and subphenotype the disease to accelerate the translational path to new treatments.
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Affiliation(s)
- Mohammed Eslam
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, NSW, Australia.
| | - Arun J Sanyal
- Virginia Commonwealth University School of Medicine, Richmond, Virginia.
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, NSW, Australia.
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45
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Salvoza NC, Giraudi PJ, Tiribelli C, Rosso N. Sex differences in non-alcoholic fatty liver disease: hints for future management of the disease. EXPLORATION OF MEDICINE 2020. [DOI: 10.37349/emed.2020.00005] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) remains a major cause of chronic liver disease worldwide. Despite extensive studies, the heterogeneity of the risk factors as well as different disease mechanisms complicate the goals toward effective diagnosis and management. Recently, it has been shown that sex differences play a role in the prevalence and progression of NAFLD. In vitro, in vivo, and clinical studies revealed that the lower prevalence of NAFLD in premenopausal as compared to postmenopausal women and men is mainly due to the protective effects of estrogen and body fat distribution. It has been also described that males and females present differential pathogenic features in terms of biochemical profiles and histological characteristics. However, the exact molecular mechanisms for the gender differences that exist in the pathogenesis of NAFLD are still elusive. Lipogenesis, oxidative stress, and inflammation play a key role in the progression of NAFLD. For NAFLD, only a few studies characterized these mechanisms at the molecular level. Therefore, we aim to review the reported differential molecular mechanisms that trigger such different pathogenesis in both sexes. Differences in lipid metabolism, glucose homeostasis, oxidative stress, inflammation, and fibrosis were discussed based on the evidence reported in recent publications. In conclusion, with this review, we hope to provide a new perspective for the development of future practice guidelines as well as a new avenue for the management of the disease.
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Affiliation(s)
- Noel C. Salvoza
- Fondazione Italiana Fegato ONLUS, Area Science Park Basovizza SS14 km 163.5, 34149 Trieste, Italy; Philippine Council for Health Research and Development, DOST Compound, Bicutan Taguig City 1631, Philippines
| | - Pablo J. Giraudi
- Fondazione Italiana Fegato ONLUS, Area Science Park Basovizza SS14 km 163.5, 34149 Trieste, Italy
| | - Claudio Tiribelli
- Fondazione Italiana Fegato ONLUS, Area Science Park Basovizza SS14 km 163.5, 34149 Trieste, Italy
| | - Natalia Rosso
- Fondazione Italiana Fegato ONLUS, Area Science Park Basovizza SS14 km 163.5, 34149 Trieste, Italy
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Lonardo A, Suzuki A. Sexual Dimorphism of NAFLD in Adults. Focus on Clinical Aspects and Implications for Practice and Translational Research. J Clin Med 2020; 9:jcm9051278. [PMID: 32354182 PMCID: PMC7288212 DOI: 10.3390/jcm9051278] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 02/07/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) embraces the clinico-pathological consequences of hepatic lipotoxicity and is a major public health problem globally. Sexual dimorphism is a definite feature of most human diseases but, under this aspect, NAFLD lags behind other medical fields. Here, we aim at summarizing and critically discussing the most prominent sex differences and gaps in NAFLD in humans, with emphasis on those aspects which are relevant for clinical practice and translational research. Sexual dimorphism of NAFLD is covered with references to the following areas: disease prevalence and risk factors, pathophysiology, comorbidities, natural course and complications. Finally, we also discuss selected gender differences and whether sex-specific lifestyle changes should be adopted to contrast NAFLD in men and women.
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Affiliation(s)
- Amedeo Lonardo
- Operating Unit Metabolic Syndrome, Azienda Ospedaliero-Universitaria di Modena, Ospedale Civile di Baggiovara, 41126 Baggiovara MO, Italy
- Correspondence:
| | - Ayako Suzuki
- Division of Gastroenterology, Durham VA Medical Center and Duke University Medical Center, Durham, NC 27705, USA;
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47
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Excessive early-life cholesterol exposure may have later-life consequences for nonalcoholic fatty liver disease. J Dev Orig Health Dis 2020; 12:229-236. [PMID: 32290895 DOI: 10.1017/s2040174420000239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The in utero and immediate postnatal environments are recognized as critical windows of developmental plasticity where offspring are highly susceptible to changes in the maternal metabolic milieu. Maternal hypercholesterolemia (MHC) is a pathological condition characterized by an exaggerated rise in maternal serum cholesterol during pregnancy which can program metabolic dysfunction in offspring, including dysregulation of hepatic lipid metabolism. Although there is currently no established reference range MHC, a loosely defined cutoff point for total cholesterol >280 mg/dL in the third trimester has been suggested. There are several unanswered questions regarding this condition particularly with regard to how the timing of cholesterol exposure influences hepatic lipid dysfunction and the mechanisms through which these adaptations manifest in adulthood. Gestational hypercholesterolemia increased fetal hepatic lipid concentrations and altered lipid regulatory mRNA and protein content. These early changes in hepatic lipid metabolism are evident in the postweaning environment and persist into adulthood. Further, changes to hepatic epigenetic signatures including microRNA (miR) and DNA methylation are observed in utero, at weaning, and are evident in adult offspring. In conclusion, early exposure to cholesterol during critical developmental periods can predispose offspring to the early development of nonalcoholic fatty liver disease (NAFLD) which is characterized by altered regulatory function beginning in utero and persisting throughout the life cycle.
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48
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Karri K, Waxman DJ. Widespread Dysregulation of Long Noncoding Genes Associated With Fatty Acid Metabolism, Cell Division, and Immune Response Gene Networks in Xenobiotic-exposed Rat Liver. Toxicol Sci 2020; 174:291-310. [PMID: 31926019 PMCID: PMC7098378 DOI: 10.1093/toxsci/kfaa001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Xenobiotic exposure dysregulates hundreds of protein-coding genes in mammalian liver, impacting many physiological processes and inducing diverse toxicological responses. Little is known about xenobiotic effects on long noncoding RNAs (lncRNAs), many of which have important regulatory functions. Here, we present a computational framework to discover liver-expressed, xenobiotic-responsive lncRNAs (xeno-lncs) with strong functional, gene regulatory potential and elucidate the impact of xenobiotic exposure on their gene regulatory networks. We assembled the long noncoding transcriptome of xenobiotic-exposed rat liver using RNA-seq datasets from male rats treated with 27 individual chemicals, representing 7 mechanisms of action (MOAs). Ortholog analysis was combined with coexpression data and causal inference methods to infer lncRNA function and deduce gene regulatory networks, including causal effects of lncRNAs on protein-coding gene expression and biological pathways. We discovered > 1400 liver-expressed xeno-lncs, many with human and/or mouse orthologs. Xenobiotics representing different MOAs often regulated common xeno-lnc targets: 123 xeno-lncs were dysregulated by ≥ 10 chemicals, and 5 xeno-lncs responded to ≥ 20 of the 27 chemicals investigated; 81 other xeno-lncs served as MOA-selective markers of xenobiotic exposure. Xeno-lnc-protein-coding gene coexpression regulatory network analysis identified xeno-lncs closely associated with exposure-induced perturbations of hepatic fatty acid metabolism, cell division, or immune response pathways, and with apoptosis or cirrhosis. We also identified hub and bottleneck lncRNAs, which are expected to be key regulators of gene expression. This work elucidates extensive networks of xeno-lnc-protein-coding gene interactions and provides a framework for understanding the widespread transcriptome-altering actions of foreign chemicals in a key-responsive mammalian tissue.
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Affiliation(s)
- Kritika Karri
- Department of Biology and Bioinformatics Program, Boston University, Boston, Massachusetts
| | - David J Waxman
- Department of Biology and Bioinformatics Program, Boston University, Boston, Massachusetts
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49
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Valodara AM, SR KJ. Sexual Dimorphism in Drug Metabolism and Pharmacokinetics. Curr Drug Metab 2020; 20:1154-1166. [DOI: 10.2174/1389200220666191021094906] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/27/2019] [Accepted: 10/04/2019] [Indexed: 12/11/2022]
Abstract
Background:Sex and gender-based differences are observed well beyond the sex organs and affect several physiological and biochemical processes involved in the metabolism of drug molecules. It is essential to understand not only the sex and gender-based differences in the metabolism of the drug but also the molecular mechanisms involved in the regulation of drug metabolism for avoiding sex-related adverse effects of drugs in the human.Method:The articles on the sex and gender-based differences in the metabolism of drug molecules were retrieved from the Pub Med database. The articles were classified into the metabolism of the drug molecule, gene expression regulation of drug-metabolizing enzymes, the effect of sex hormones on the metabolism of drug, expression of drugmetabolizing enzymes, etc.Result:Several drug molecules are known, which are metabolized differently in males and females. These differences in metabolism may be due to the genomic and non-genomic action of sex hormones. Several other drug molecules still require further evaluation at the molecular level regarding the sex and gender-based differences in their metabolism. Attention is also required at the effect of signaling cascades associated with the metabolism of drug molecules.Conclusion:Sex and gender-based differences in the metabolism of drugs exist at various levels and it may be due to the genomic and non-genomic action of sex hormones. Detailed understanding of the effect of sex and related condition on the metabolism of drug molecules will help clinicians to determine the effective therapeutic doses of drugs dependingon the condition of patient and disease.
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Affiliation(s)
- Askhi M. Valodara
- Department of Zoology, Biomedical Technology and Human Genetics, School of Sciences, Gujarat University, Ahmedabad, India
| | - Kaid Johar SR
- Department of Zoology, Biomedical Technology and Human Genetics, School of Sciences, Gujarat University, Ahmedabad, India
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50
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Brulport A, Vaiman D, Chagnon MC, Le Corre L. Obesogen effect of bisphenol S alters mRNA expression and DNA methylation profiling in male mouse liver. CHEMOSPHERE 2020; 241:125092. [PMID: 31683443 DOI: 10.1016/j.chemosphere.2019.125092] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/30/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Environmental pollution is increasingly considered an important factor involved in the obesity incidence. Endocrine disruptors (EDs) are important actors in the concept of DOHaD (Developmental Origins of Health and Disease), where epigenetic mechanisms play crucial roles. Bisphenol A (BPA), a monomer used in the manufacture of plastics and resins is one of the most studied obesogenic endocrine disruptor. Bisphenol S (BPS), a BPA substitute, has the same obesogenic properties, acting at low doses with a sex-specific effect following perinatal exposure. Since the liver is a major organ in regulating body lipid homeostasis, we investigated gene expression and DNA methylation under low-dose BPS exposure. The BPS obesogenic effect was associated with an increase of hepatic triglyceride content. These physiological disturbances were accompanied by genome-wide changes in gene expression (1366 genes significantly modified more than 1.5-fold). Gene ontology analysis revealed alteration of gene cascades involved in protein translation and complement regulation. It was associated with hepatic DNA hypomethylation in autosomes and hypermethylation in sex chromosomes. Although no systematic correlation has been found between gene repression and hypermethylation, several genes related to liver metabolism were either hypermethylated (Acsl4, Gpr40, Cel, Pparδ, Abca6, Ces3a, Sgms2) or hypomethylated (Soga1, Gpihbp1, Nr1d2, Mlxipl, Rps6kb2, Esrrb, Thra, Cidec). In specific cases (Hapln4, ApoA4, Cidec, genes involved in lipid metabolism and liver fibrosis) mRNA upregulation was associated with hypomethylation. In conclusion, we show for the first time wide disruptive physiological effects of low-dose of BPS, which raises the question of its harmlessness as an industrial substitute for BPA.
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Affiliation(s)
- Axelle Brulport
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSup, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Daniel Vaiman
- From Gametes to Birth Team (FGTB), INSERM, U1016, Institut Cochin, F-75014, Paris, France; CNRS UMR8104, F-75014, Paris, France; Université Sorbonne Paris Cité, F-75014, Paris, France
| | - Marie-Christine Chagnon
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSup, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Ludovic Le Corre
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSup, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France.
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