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Yang Q, Zeng S, Liu W. Roles of cuproptosis-related gene DLAT in various cancers: a bioinformatic analysis and preliminary verification on pro-survival autophagy. PeerJ 2023; 11:e15019. [PMID: 36949759 PMCID: PMC10026716 DOI: 10.7717/peerj.15019] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/17/2023] [Indexed: 03/19/2023] Open
Abstract
Background Studies have shown that the expressions and working mechanisms of Dihydrolipoamide S-acetyltransferase (DLAT) in different cancers vary. It is necessary to analyze the expressions and regulatory roles of DLAT in tumors systematically. Methods Online public-platform literature on the relationships between DLAT expression levels and tumor prognosis, methylation status, genetic alteration, drug sensitivity, and immune infiltration has been reviewed. The literature includes such documents as The Cancer Genome Atlas (TCGA), Human Protein Atlas (HPA), Tumor Immune Estimation Resource 2.0 (TIMER2.0), Gene Expression Profiling Interactive Analysis 2 (GEPIA2) and Receiver Operating Characteristic plotter (ROC plotter). The molecular mechanisms of DLAT were explored with the Gene Set Enrichment Analysis (GSEA). The relationship between down-regulated DLAT and autophagy in two liver hepatocellular carcinoma (LIHC) cell lines was confirmed with the western blot method, colony formation assay, and transmission electron microscopy. Tissue microarrays were validated through the immunohistochemical staining of DLAT. Results DLAT is upregulated in the LIHC, lung adenocarcinoma (LUAD), lung squamous cell carcinoma (LUSC), and stomach adenocarcinoma (STAD) tumors but is down-regulated in the head and neck squamous cell carcinoma (HNSC) and kidney renal clear cell carcinoma (KIRC) tumors in comparison with normal tissues. For LIHC patients treated with 5-Fluorouracil and Lenvatinib, the DLAT levels of those in the drug-resistant group are significantly high. In LIHC cells, autophagy will be inhibited, and cell death will be induced when DLAT breaks down. Moreover, there exist positive correlations between DLAT expression levels and infiltration of B cells, DC cells, Tregs, and CD8+ T cells in kidney chromophobe (KICH), breast invasive carcinoma (BRCA), prostate adenocarcinoma (PRAD), LIHC and HPV+ HNSC. In LIHC, markers of Tregs are positively correlated with DLAT. Compared with those of normal tissues, the staining intensity of DLAT and the amount of Tregs marker CD49d in LIHC increase. Conclusions Through this study, the expressions of DLAT in various cancer types can be understood comprehensively. It suggests that DLAT may be a prognostic marker for LIHC, LUAD, LUSC, STAD and KIRC. A high DLAT expression in LIHC may promote tumorigenesis by stimulating autophagy and inhibiting anti-tumor immunity.
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Affiliation(s)
- Qinjing Yang
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, China
- Nursing Department, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Shuangshuang Zeng
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China
| | - Wei Liu
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, China
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2
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Chen R, Tang R, Ma X, Gershwin ME. Immunologic Responses and the Pathophysiology of Primary Biliary Cholangitis. Clin Liver Dis 2022; 26:583-611. [PMID: 36270718 DOI: 10.1016/j.cld.2022.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Primary biliary cholangitis (PBC) is an autoimmune liver disease with a female predisposition and selective destruction of intrahepatic small bile ducts leading to nonsuppurative destructive cholangitis. It is characterized by seropositivity of antimitochondrial antibodies or PBC-specific antinuclear antibodies, progressive cholestasis, and typical liver histologic manifestations. Destruction of the protective bicarbonate-rich umbrella is attributed to the decreased expression of membrane transporters in biliary epithelial cells (BECs), leading to the accumulation of hydrophobic bile acids and sensitizing BECs to apoptosis. A recent X-wide association study reveals a novel risk locus on the X chromosome, which reiterates the importance of Treg cells.
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Affiliation(s)
- Ruiling Chen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai, China
| | - Ruqi Tang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai, China
| | - Xiong Ma
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai, China.
| | - M Eric Gershwin
- Division of Rheumatology-Allergy and Clinical Immunology, University of California at Davis, 451 Health Sciences Drive, Suite 6510, Davis, CA 95616, USA.
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3
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Reuveni D, Brezis MR, Brazowski E, Vinestock P, Leung PSC, Thakker P, Gershwin ME, Zigmond E. Interleukin 23 Produced by Hepatic Monocyte-Derived Macrophages Is Essential for the Development of Murine Primary Biliary Cholangitis. Front Immunol 2021; 12:718841. [PMID: 34484224 PMCID: PMC8414574 DOI: 10.3389/fimmu.2021.718841] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/29/2021] [Indexed: 12/30/2022] Open
Abstract
Background and Aims Primary Biliary Cholangitis (PBC) is an organ-specific autoimmune liver disease. Mononuclear phagocytes (MNPs), comprise of monocyte, dendritic cells and monocyte-derived macrophages, constitute major arm of the innate immune system known to be involved in the pathogenesis of autoimmune disorders. MNPs were shown to accumulate around intra-hepatic bile ducts in livers of PBC patients. Interleukin 23 (IL-23) is a pro-inflammatory cytokine. IL-23-positive cells were detected in livers of patients with advanced stage PBC and IL-23 serum levels found to be in correlation with PBC disease severity. Our overall goal was to assess the importance of IL-23 derived from MNPs in PBC pathogenesis. Methods We utilized an inducible murine model of PBC and took advantage of transgenic mice targeting expression of IL-23 by specific MNP populations. Analysis included liver histology assessment, flow cytometry of hepatic immune cells and hepatic cytokine profile evaluation. Specific MNPs sub-populations were sorted and assessed for IL-23 expression levels. Results Flow cytometry analysis of non-parenchymal liver cells in autoimmune cholangitis revealed massive infiltration of the liver by MNPs and neutrophils and a decrease in Kupffer cells numbers. In addition, a 4-fold increase in the incidence of hepatic IL-17A producing CD4+ T cells was found to be associated with an increase in hepatic IL23-p19 and IL17A expression levels. Disease severity was significantly ameliorated in both CD11ccreP19flox/flox and CX3CR1creP19 flox/flox mice as assessed by reduced portal inflammation and decreased hepatic expression of various inflammatory cytokines. Amelioration of disease severity was associated with reduction in IL-17A producing CD4+ T cells percentages and decreased hepatic IL23-p19 and IL17A expression levels. qRT-PCR analysis of sorted hepatic MNPs demonstrated high expression levels of IL-23 mRNA specifically by CX3CR1hiCD11c+ monocyte-derived macrophages. Conclusion Our results indicate a major role for IL-23 produced by hepatic monocyte-derived macrophages in the pathogenesis of PBC. These results may pave the road for the development of new immune-based and cell specific therapeutic modalities for PBC patients not responding to current therapies.
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Affiliation(s)
- Debby Reuveni
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Miriam R Brezis
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eli Brazowski
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Pathology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Philip Vinestock
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Patrick S C Leung
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Paresh Thakker
- Regeneron Pharmaceuticals, Inc., Tarrytown, NY, United States
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Ehud Zigmond
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Center for Autoimmune Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
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4
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Kuniyoshi N, Miyakawa H, Matsumoto K, Tsunashima H, Sekine K, Tsujikawa T, Mabuchi M, Doi S, Kikuchi K. Detection of Anti-mitochondrial Antibodies Accompanied by Drug-induced Hepatic Injury due to Atorvastatin. Intern Med 2019; 58:2663-2667. [PMID: 31178503 PMCID: PMC6794188 DOI: 10.2169/internalmedicine.2708-19] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A 44-year-old Japanese woman was admitted to our hospital with fatigue and an altered liver function. She had been receiving atorvastatin treatment for 10 months. Although no jaundice was seen, the patient's serum alkaline phosphatase and γ-glutamyl transpeptidase levels were markedly elevated. Based on the results of a drug-induced lymphocyte-stimulation test, her liver disease was diagnosed as atorvastatin-induced hepatic injury. Subsequently, anti-mitochondrial antibodies (AMAs) were detected in her serum; however, a liver biopsy specimen did not show the characteristic features of primary biliary cholangitis. We herein report the detection of AMAs accompanied by drug-induced hepatic injury caused by atorvastatin.
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Affiliation(s)
- Noriyuki Kuniyoshi
- Department of Gastroenterology, Teikyo University Mizonokuchi Hospital, Japan
| | - Hiroshi Miyakawa
- Fourth Department of Internal Medicine, Teikyo University Mizonokuchi Hospital, Japan
| | - Kotaro Matsumoto
- Department of Gastroenterology, Teikyo University Mizonokuchi Hospital, Japan
| | | | - Katsunori Sekine
- Department of Gastroenterology, Teikyo University Mizonokuchi Hospital, Japan
| | - Takayuki Tsujikawa
- Department of Gastroenterology, Teikyo University Mizonokuchi Hospital, Japan
| | - Masatoshi Mabuchi
- Department of Gastroenterology, Teikyo University Mizonokuchi Hospital, Japan
| | - Shinpei Doi
- Department of Gastroenterology, Teikyo University Mizonokuchi Hospital, Japan
| | - Kentaro Kikuchi
- Fourth Department of Internal Medicine, Teikyo University Mizonokuchi Hospital, Japan
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5
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Yoshida EM, Mason A, Peltekian KM, Shah H, Thiele S, Borrelli R, Fischer A. Epidemiology and liver transplantation burden of primary biliary cholangitis: a retrospective cohort study. CMAJ Open 2018; 6:E664-E670. [PMID: 30578275 PMCID: PMC6303180 DOI: 10.9778/cmajo.20180029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There is a wealth of data documenting the epidemiology of primary biliary cholangitis (PBC) globally; however, the epidemiology of PBC has not been as well studied in Canada. Our study characterized the Canadian prevalence of PBC and the number of liver transplantations because of PBC. METHODS For this retrospective cohort study we used national hospital administrative records from the Canadian Institute for Health Information, with the exception of Quebec for the prevalence estimate and Quebec and British Columbia for the transplant analysis. Prevalent patients were identified through a diagnostic code for PBC of the Canadian version of the 10th revision of the International Classification of Diseases. PBC transplant patients were identified from their transplant record. Descriptive statistics were used to summarize the characteristics of the study cohorts. RESULTS In 2015, 8680 patients with PBC were identified in Canada, translating to a prevalence of 318 cases per million. Annual prevalence by province varied, ranging from 283 (95% confidence interval [CI] 269-297) cases per million to 465 (95% CI 426-504) cases per million, and the 6-year PBC liver transplantation rate ranged from 3.17 (95% CI 1.27-6.54) to 5.92 (95% CI 3.71-9.08) per million. The Atlantic provinces exhibited the highest PBC prevalence and close to the highest 6-year liver transplantation rate (465 [95% CI 426-504] cases per million and 5.70 [95% CI 426-504, 3.19-9.56] cases per million, respectively). We observed the lowest PBC prevalence (283 [95% CI 269-297] cases per million) and the second lowest 6-year liver transplantation rate in Ontario (3.37 [95% CI 2.47-4.50] cases per million). INTERPRETATION The prevalence of PBC that we found in Canada is similar to the prevalence reported in other studies, but our work also indicates geographic variation within this country. Given our finding of geographic clustering of PBC across Canada, we hypothesize that environmental and genetic factors contribute to the pathogenesis of this condition.
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Affiliation(s)
- Eric M Yoshida
- Division of Gastroenterology (Yoshida), University of British Columbia, Vancouver, BC; Division of Gastroenterology (Mason), University of Alberta, Edmonton, Alta.; Division of Digestive Care & Endoscopy (Peltekian), Dalhousie University and Queen Elizabeth II Health Sciences Centre, Halifax, NS; Toronto Centre for Liver Disease (Shah), University Health Network, Toronto, Ont.; IQVIA (Thiele, Borrelli, Fischer), Mississauga, Ont
| | - Andrew Mason
- Division of Gastroenterology (Yoshida), University of British Columbia, Vancouver, BC; Division of Gastroenterology (Mason), University of Alberta, Edmonton, Alta.; Division of Digestive Care & Endoscopy (Peltekian), Dalhousie University and Queen Elizabeth II Health Sciences Centre, Halifax, NS; Toronto Centre for Liver Disease (Shah), University Health Network, Toronto, Ont.; IQVIA (Thiele, Borrelli, Fischer), Mississauga, Ont
| | - Kevork M Peltekian
- Division of Gastroenterology (Yoshida), University of British Columbia, Vancouver, BC; Division of Gastroenterology (Mason), University of Alberta, Edmonton, Alta.; Division of Digestive Care & Endoscopy (Peltekian), Dalhousie University and Queen Elizabeth II Health Sciences Centre, Halifax, NS; Toronto Centre for Liver Disease (Shah), University Health Network, Toronto, Ont.; IQVIA (Thiele, Borrelli, Fischer), Mississauga, Ont
| | - Hemant Shah
- Division of Gastroenterology (Yoshida), University of British Columbia, Vancouver, BC; Division of Gastroenterology (Mason), University of Alberta, Edmonton, Alta.; Division of Digestive Care & Endoscopy (Peltekian), Dalhousie University and Queen Elizabeth II Health Sciences Centre, Halifax, NS; Toronto Centre for Liver Disease (Shah), University Health Network, Toronto, Ont.; IQVIA (Thiele, Borrelli, Fischer), Mississauga, Ont
| | - Sherri Thiele
- Division of Gastroenterology (Yoshida), University of British Columbia, Vancouver, BC; Division of Gastroenterology (Mason), University of Alberta, Edmonton, Alta.; Division of Digestive Care & Endoscopy (Peltekian), Dalhousie University and Queen Elizabeth II Health Sciences Centre, Halifax, NS; Toronto Centre for Liver Disease (Shah), University Health Network, Toronto, Ont.; IQVIA (Thiele, Borrelli, Fischer), Mississauga, Ont
| | - Richard Borrelli
- Division of Gastroenterology (Yoshida), University of British Columbia, Vancouver, BC; Division of Gastroenterology (Mason), University of Alberta, Edmonton, Alta.; Division of Digestive Care & Endoscopy (Peltekian), Dalhousie University and Queen Elizabeth II Health Sciences Centre, Halifax, NS; Toronto Centre for Liver Disease (Shah), University Health Network, Toronto, Ont.; IQVIA (Thiele, Borrelli, Fischer), Mississauga, Ont
| | - Aren Fischer
- Division of Gastroenterology (Yoshida), University of British Columbia, Vancouver, BC; Division of Gastroenterology (Mason), University of Alberta, Edmonton, Alta.; Division of Digestive Care & Endoscopy (Peltekian), Dalhousie University and Queen Elizabeth II Health Sciences Centre, Halifax, NS; Toronto Centre for Liver Disease (Shah), University Health Network, Toronto, Ont.; IQVIA (Thiele, Borrelli, Fischer), Mississauga, Ont.
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6
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Bile acids and intestinal microbiota in autoimmune cholestatic liver diseases. Autoimmun Rev 2017; 16:885-896. [PMID: 28698093 DOI: 10.1016/j.autrev.2017.07.002] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 05/11/2017] [Indexed: 12/13/2022]
Abstract
Autoimmune cholestatic liver diseases, including primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC), are manifested as an impairment of normal bile flow and excessive accumulation of potentially toxic bile acids. Endogenous bile acids are involved in the pathogenesis and progression of cholestasis. Consequently, chronic cholestasis affects the expression of bile acid transporters and nuclear receptors, and results in liver injury. Several lines of evidence suggest that intestinal microbiota plays an important role in the etiopathogenesis of cholestatic liver diseases by regulating metabolism and immune responses. However, progression of the disease may also affect the composition of gut microbiota, which in turn exacerbates the progression of cholestasis. In addition, the interaction between intestinal microbiota and bile acids is not unidirectional. Bile acids can shape the gut microbiota community, and in turn, intestinal microbes are able to alter bile acid pool. In general, gut microbiota actively communicates with bile acids, and together play an important role in the pathogenesis of PBC and PSC. Targeting the link between bile acids and intestinal microbiota offers exciting new perspectives for the treatment of those cholestatic liver diseases. This review highlights current understanding of the interactions between bile acids and intestinal microbiota and their roles in autoimmune cholestatic liver diseases. Further, we postulate a bile acids-intestinal microbiota-cholestasis triangle in the pathogenesis of autoimmune cholestatic liver diseases and potential therapeutic strategies by targeting this triangle.
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7
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Tanakaa A, Leung PS, Young HA, Gershwin ME. Toward solving the etiological mystery of primary biliary cholangitis. Hepatol Commun 2017; 1:275-287. [PMID: 29057387 PMCID: PMC5646686 DOI: 10.1002/hep4.1044] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Primary biliary cholangitis (PBC) is considered a model autoimmune disease due to its signature anti‐mitochondrial antibody (AMA) autoantibody, female predominance, and relatively specific portal infiltration and cholestasis. The identification and cloning of the major mitochondrial autoantigens recognized by AMA have served as an immunologic platform to identify the earliest events involved in loss of tolerance. Despite the relatively high concordance rate in identical twins, genome‐wide association studies have not proven clinically useful and have led to suggestions of epigenetic events. To understand the natural history and etiology of PBC, several murine models have been developed, including spontaneous models, models induced by chemical xenobiotic immunization, and by “designer” mice with altered interferon metabolism. Herein, we describe five such models, including 1) NOD.c3c4 mice, 2) dominant negative form of transforming growth factor receptor type II mice, 3) interleukin‐2R α−/− mice, 4) adenylate‐uridylate‐rich element Del−/− mice, and 5) 2‐octynoic acid‐conjugated bovine serum albumin immunized mice. Individually there is no perfect murine model, but collectively the models point to loss of tolerance to PDC‐E2, the major mitochondrial autoantigen, as the earliest event that occurs before clinical disease is manifest. Although there is no direct association of AMA titer and PBC disease progression, it is noteworthy that the triad of PBC monocytes, biliary apotopes, and AMA leads to an intense proinflammatory cytokine burst. Further, the recurrence of PBC after liver transplantation indicates that, due to major histocompatibility complex restriction, disease activity must include not only adaptive immunity but also innate immune mechanisms. We postulate that successful treatment of PBC may require a personalized approach with therapies designed for different stages of disease. (Hepatology Communications 2017;1:275–287)
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Affiliation(s)
- Atsushi Tanakaa
- Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Patrick Sc Leung
- Division of Rheumatology Allergy and Clinical Immunology, University of California School of Medicine, Davis, CA, USA
| | - Howard A Young
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD, USA
| | - M Eric Gershwin
- Division of Rheumatology Allergy and Clinical Immunology, University of California School of Medicine, Davis, CA, USA
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8
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Hao J, Yang T, Zhou Y, Gao GY, Xing F, Peng Y, Tao YY, Liu CH. Serum Metabolomics Analysis Reveals a Distinct Metabolic Profile of Patients with Primary Biliary Cholangitis. Sci Rep 2017; 7:784. [PMID: 28400566 PMCID: PMC5429753 DOI: 10.1038/s41598-017-00944-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 02/27/2017] [Indexed: 12/17/2022] Open
Abstract
Primary biliary cholangitis (PBC) is a chronic autoimmune liver disease associated with profound metabolic changes. The purpose of this study was to identify a distinctive metabolic signature from the training set with 29 PBC patients, 30 hepatitis B virus (HBV)-caused cirrhosis (HBC) and 41 healthy controls, and to validate the applicability and stability of the distinctive model from the validation set with 21 PBC patients, 7 autoimmune hepatitis (AIH) and 9 HBC. The sera were investigated using high resolution nuclear magnetic resonance (NMR) and the datasets were analyzed pairwise using pattern recognition methods. 45 distinguishable metabolites were identified and 15 metabolic pathways were reprogrammed. The altered metabolic pathways were associated with glucose, fatty acid and amino acid metabolites. Logistic regression and ROC analysis were used to establish a diagnostic model with the equated (p) = −12.22–3.46*log(4-hydroxyproline) + 6.62*log(3-hydroxyisovalerate) − 2.44*log(citraconate) − 3.80*log(pyruvate). The area under the curve (AUC) of the optimized model was 0.937 (95% confidence interval (CI): 0.868–0.976) in the training set and 0.890 (95% CI: 0.743–0.969) in the validation set. These results not only revealed the potential pathogenesis of PBC, but also provided a feasible diagnostic tool for PBC populations through detection of serum metabolites.
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Affiliation(s)
- Juan Hao
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Shanghai, 201203, China
| | - Tao Yang
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Shanghai, 201203, China.,Institute of Cardiovascular Disease, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Yang Zhou
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Shanghai, 201203, China
| | - Guo-Yuan Gao
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Shanghai, 201203, China.,School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Feng Xing
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Shanghai, 201203, China
| | - Yuan Peng
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Shanghai, 201203, China
| | - Yan-Yan Tao
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Shanghai, 201203, China
| | - Cheng-Hai Liu
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Shanghai, 201203, China. .,E-Institute of Traditional Chinese Medicine Internal Medicine, Shanghai Municipal Education Commission, 1200 Cailun Road, Shanghai, 201203, China. .,Shanghai Key Laboratory of Traditional Chinese Clinical Medicine, Shanghai, 201203, China.
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Saeki T, Nakajima A, Ito T, Takata T, Imai N, Yoshita K, Kabasawa H, Yamazaki H, Narita I. Tubulointerstitial nephritis and Fanconi syndrome in a patient with primary Sjögren’s syndrome accompanied by antimitochondrial antibodies: A case report and review of the literature. Mod Rheumatol 2016; 28:897-900. [DOI: 10.3109/14397595.2016.1174422] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takako Saeki
- Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka, Niigata, Japan,
| | - Akihiro Nakajima
- Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka, Niigata, Japan,
| | - Tomoyuki Ito
- Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka, Niigata, Japan,
| | - Takuma Takata
- Department of Internal Medicine, Nagaoka Chuo General Hospital, Nagaoka, Japan, and
| | - Naofumi Imai
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kazuhiro Yoshita
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hideyuki Kabasawa
- Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka, Niigata, Japan,
| | - Hajime Yamazaki
- Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka, Niigata, Japan,
| | - Ichiei Narita
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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10
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Leung PSC, Choi J, Yang G, Woo E, Kenny TP, Gershwin ME. A contemporary perspective on the molecular characteristics of mitochondrial autoantigens and diagnosis in primary biliary cholangitis. Expert Rev Mol Diagn 2016; 16:697-705. [PMID: 26953925 DOI: 10.1586/14737159.2016.1164038] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Primary biliary cholangitis (PBC) is an autoimmune hepatobiliary disease characterized by immune mediated destruction of the intrahepatic small bile ducts and the presence of antimitochondrial antibodies (AMAs). The mitochondrial autoantigens have been identified as the E2 subunits of the 2-oxo-acid dehydrogenase complex, including the E2 subunits of pyruvate dehydrogenase, branched-chain 2-oxo acid dehydrogenase complex, oxoglutarate dehydrogenase complex, E3 binding protein and PDC E1 alpha subunit. The AMA epitope is mapped within the E2 lipoic acid binding domain, which is particularly important for oxidative phosphorylation. In addition, lipoic acid, which serves as a swinging arm to capture electrons, is particularly susceptible to an electrophilic attack and may provide clues to the etiology of PBC. This review emphasizes the molecular characteristics of AMAs, including detection, immunochemistry and the putative role in disease. These data have significance not only specifically for PBC, but generically for autoimmunity.
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Affiliation(s)
- Patrick S C Leung
- a Division of Rheumatology, Allergy and Clinical Immunology , University of California at Davis School of Medicine , Davis , CA , USA
| | - Jinjung Choi
- a Division of Rheumatology, Allergy and Clinical Immunology , University of California at Davis School of Medicine , Davis , CA , USA
| | - Guoxiang Yang
- a Division of Rheumatology, Allergy and Clinical Immunology , University of California at Davis School of Medicine , Davis , CA , USA
| | - Elena Woo
- a Division of Rheumatology, Allergy and Clinical Immunology , University of California at Davis School of Medicine , Davis , CA , USA
| | - Thomas P Kenny
- a Division of Rheumatology, Allergy and Clinical Immunology , University of California at Davis School of Medicine , Davis , CA , USA
| | - M Eric Gershwin
- a Division of Rheumatology, Allergy and Clinical Immunology , University of California at Davis School of Medicine , Davis , CA , USA
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