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Hu CQ, Hou T, Xiang R, Li X, Li J, Wang TT, Liu WJ, Hou S, Wang D, Zhao QH, Yu XX, Xu M, Liu XK, Chi YJ, Yang JC. PANX1-mediated ATP release confers FAM3A's suppression effects on hepatic gluconeogenesis and lipogenesis. Mil Med Res 2024; 11:41. [PMID: 38937853 PMCID: PMC11210080 DOI: 10.1186/s40779-024-00543-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 06/10/2024] [Indexed: 06/29/2024] Open
Abstract
BACKGROUND Extracellular adenosine triphosphate (ATP) is an important signal molecule. In previous studies, intensive research had revealed the crucial roles of family with sequence similarity 3 member A (FAM3A) in controlling hepatic glucolipid metabolism, islet β cell function, adipocyte differentiation, blood pressure, and other biological and pathophysiological processes. Although mitochondrial protein FAM3A plays crucial roles in the regulation of glucolipid metabolism via stimulating ATP release to activate P2 receptor pathways, its mechanism in promoting ATP release in hepatocytes remains unrevealed. METHODS db/db, high-fat diet (HFD)-fed, and global pannexin 1 (PANX1) knockout mice, as well as liver sections of individuals, were used in this study. Adenoviruses and adeno-associated viruses were utilized for in vivo gene overexpression or inhibition. To evaluate the metabolic status in mice, oral glucose tolerance test (OGTT), pyruvate tolerance test (PTT), insulin tolerance test (ITT), and magnetic resonance imaging (MRI) were conducted. Protein-protein interactions were determined by coimmunoprecipitation with mass spectrometry (MS) assays. RESULTS In livers of individuals and mice with steatosis, the expression of ATP-permeable channel PANX1 was increased (P < 0.01). Hepatic PANX1 overexpression ameliorated the dysregulated glucolipid metabolism in obese mice. Mice with hepatic PANX1 knockdown or global PANX1 knockout exhibited disturbed glucolipid metabolism. Restoration of hepatic PANX1 rescued the metabolic disorders of PANX1-deficient mice (P < 0.05). Mechanistically, ATP release is mediated by the PANX1-activated protein kinase B-forkhead box protein O1 (Akt-FOXO1) pathway to inhibit gluconeogenesis via P2Y receptors in hepatocytes. PANX1-mediated ATP release also activated calmodulin (CaM) (P < 0.01), which interacted with c-Jun N-terminal kinase (JNK) to inhibit its activity, thereby deactivating the transcription factor activator protein-1 (AP1) and repressing fatty acid synthase (FAS) expression and lipid synthesis (P < 0.05). FAM3A stimulated the expression of PANX1 via heat shock factor 1 (HSF1) in hepatocytes (P < 0.05). Notably, FAM3A overexpression failed to promote ATP release, inhibit the expression of gluconeogenic and lipogenic genes, and suppress gluconeogenesis and lipid deposition in PANX1-deficient hepatocytes and livers. CONCLUSIONS PANX1-mediated release of ATP plays a crucial role in maintaining hepatic glucolipid homeostasis, and it confers FAM3A's suppressive effects on hepatic gluconeogenesis and lipogenesis.
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Affiliation(s)
- Cheng-Qing Hu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China
- Department of Obstetrics and Gynecology, Peking University Third Hospital/National Clinical Research Center for Obstetrics and Gynecology, Beijing, 100191, China
| | - Tao Hou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Rui Xiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Xin Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Jing Li
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Tian-Tian Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Wen-Jun Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Song Hou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Di Wang
- Department of Central Laboratory and Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing, 100044, China
| | - Qing-He Zhao
- Department of Gastroenterology, Peking University People's Hospital, Beijing, 100044, China
| | - Xiao-Xing Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Ming Xu
- Department of Cardiology, Institute of Vascular Medicine, Peking University Third Hospital/Key Laboratory of Molecular Cardiovascular Science of the Ministry of Education, Beijing, 100191, China
| | - Xing-Kai Liu
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Centre, the First Hospital of Jilin University, Changchun, 130061, China.
| | - Yu-Jing Chi
- Department of Central Laboratory and Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing, 100044, China.
- Department of Gastroenterology, Peking University People's Hospital, Beijing, 100044, China.
| | - Ji-Chun Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences/State Key Laboratory of Vascular Homeostasis and Remodeling/Center for Non-Coding RNA Medicine, Peking University Health Science Center, Beijing, 100191, China.
- Department of Cardiology, Peking University Third Hospital, Beijing, 100191, China.
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2
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Freeman E, Langlois S, Leyba MF, Ammar T, Léger Z, McMillan HJ, Renaud JM, Jasmin BJ, Cowan KN. Pannexin 1 dysregulation in Duchenne muscular dystrophy and its exacerbation of dystrophic features in mdx mice. Skelet Muscle 2024; 14:8. [PMID: 38671506 PMCID: PMC11046831 DOI: 10.1186/s13395-024-00340-8] [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: 08/14/2023] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Duchenne muscular dystrophy (DMD) is associated with impaired muscle regeneration, progressive muscle weakness, damage, and wasting. While the cause of DMD is an X-linked loss of function mutation in the gene encoding dystrophin, the exact mechanisms that perpetuate the disease progression are unknown. Our laboratory has demonstrated that pannexin 1 (Panx1 in rodents; PANX1 in humans) is critical for the development, strength, and regeneration of male skeletal muscle. In normal skeletal muscle, Panx1 is part of a multiprotein complex with dystrophin. We and others have previously shown that Panx1 levels and channel activity are dysregulated in various mouse models of DMD. METHODS We utilized myoblast cell lines derived from DMD patients to assess PANX1 expression and function. To investigate how Panx1 dysregulation contributes to DMD, we generated a dystrophic (mdx) mouse model that lacks Panx1 (Panx1-/-/mdx). In depth characterization of this model included histological analysis, as well as locomotor, and physiological tests such as muscle force and grip strength assessments. RESULTS Here, we demonstrate that PANX1 levels and channel function are reduced in patient-derived DMD myoblast cell lines. Panx1-/-/mdx mice have a significantly reduced lifespan, and decreased body weight due to lean mass loss. Their tibialis anterior were more affected than their soleus muscles and displayed reduced mass, myofiber loss, increased centrally nucleated myofibers, and a lower number of muscle stem cells compared to that of Panx1+/+/mdx mice. These detrimental effects were associated with muscle and locomotor functional impairments. In vitro, PANX1 overexpression in patient-derived DMD myoblasts improved their differentiation and fusion. CONCLUSIONS Collectively, our findings suggest that PANX1/Panx1 dysregulation in DMD exacerbates several aspects of the disease. Moreover, our results suggest a potential therapeutic benefit to increasing PANX1 levels in dystrophic muscles.
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MESH Headings
- Animals
- Muscular Dystrophy, Duchenne/genetics
- Muscular Dystrophy, Duchenne/metabolism
- Muscular Dystrophy, Duchenne/pathology
- Muscular Dystrophy, Duchenne/physiopathology
- Connexins/genetics
- Connexins/metabolism
- Mice, Inbred mdx
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/pathology
- Muscle, Skeletal/physiopathology
- Male
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- Humans
- Mice
- Myoblasts/metabolism
- Cell Line
- Muscle Strength
- Disease Models, Animal
- Mice, Inbred C57BL
- Mice, Knockout
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Affiliation(s)
- Emily Freeman
- Children's Hospital of Eastern Ontario Research Institute, Pediatric General Surgery, 401 Smyth Rd, Room 3360, Ottawa, ON, K1H 8L1, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Stéphanie Langlois
- Department of Surgery, Division of Pediatric Surgery, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
- Children's Hospital of Eastern Ontario Research Institute, Pediatric General Surgery, 401 Smyth Rd, Room 3360, Ottawa, ON, K1H 8L1, Canada
| | - Marcos F Leyba
- Department of Surgery, Division of Pediatric Surgery, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
- Children's Hospital of Eastern Ontario Research Institute, Pediatric General Surgery, 401 Smyth Rd, Room 3360, Ottawa, ON, K1H 8L1, Canada
| | - Tarek Ammar
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
- Centre for Neuromuscular Disease, Ottawa, ON, Canada
| | - Zacharie Léger
- Children's Hospital of Eastern Ontario Research Institute, Pediatric General Surgery, 401 Smyth Rd, Room 3360, Ottawa, ON, K1H 8L1, Canada
| | - Hugh J McMillan
- Children's Hospital of Eastern Ontario Research Institute, Pediatric General Surgery, 401 Smyth Rd, Room 3360, Ottawa, ON, K1H 8L1, Canada
| | - Jean-Marc Renaud
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
- Centre for Neuromuscular Disease, Ottawa, ON, Canada
| | - Bernard J Jasmin
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
- Centre for Neuromuscular Disease, Ottawa, ON, Canada
| | - Kyle N Cowan
- Department of Surgery, Division of Pediatric Surgery, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada.
- Children's Hospital of Eastern Ontario Research Institute, Pediatric General Surgery, 401 Smyth Rd, Room 3360, Ottawa, ON, K1H 8L1, Canada.
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada.
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3
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Espírito Santo SG, Da Silva TC, Cogliati B, Barbisan LF, Romualdo GR. Panx1 knockout promotes preneoplastic aberrant crypt foci development in a chemically induced model of mouse colon carcinogenesis. Int J Exp Pathol 2023; 104:304-312. [PMID: 37594023 PMCID: PMC10652697 DOI: 10.1111/iep.12491] [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: 05/19/2023] [Revised: 06/18/2023] [Accepted: 08/03/2023] [Indexed: 08/19/2023] Open
Abstract
Colorectal cancer, which is the third leading cause of cancer-related deaths worldwide, is a multistep disease, featuring preneoplastic aberrant crypt foci (ACF) as the early morphological manifestation. The roles of hemichannel-forming transmembrane Pannexin 1 (Panx1) protein have not been investigated in the context of colon carcinogenesis yet, although it has contrasting roles in other cancer types. Thus, this study was conducted to examine the effects of Panx1 knockout (Panx1-/- ) on the early events of chemically induced colon carcinogenesis in mouse. Wild type (WT) and Panx1-/- female C57BL6J mice were submitted to a chemically induced model of colon carcinogenesis by receiving six intraperitoneal administrations of 1,2-dimethylhydrazine (DMH) carcinogen. Animals were euthanized 8 h (week 7) or 30 weeks (week 37) after the last DMH administration in order to evaluate sub-acute colon toxicity outcomes or the burden of ACF, respectively. At week 7, Panx1 genetic ablation increased DMH-induced genotoxicity in peripheral blood cells, malondialdehyde levels in the colon, and apoptosis (cleaved caspase-3) in colonic crypts. Of note, at week 37, Panx1-/- animals showed an increase in aberrant crypts (AC), ACF mean number, and ACF multiplicity (AC per ACF) by 56%, 57% and 20%, respectively. In essence, our findings indicate that Panx1 genetic ablation promotes preneoplastic ACF development during chemically induced mouse colon carcinogenesis, and a protective role of Panx1 is postulated.
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Affiliation(s)
- Sara Gomes Espírito Santo
- Botucatu Medical School, Experimental Research Unit (UNIPEX), Multimodel Drug Screening Platform – Laboratory of Chemically Induced and Experimental Carcinogenesis (MDSP‐LCQE)São Paulo State University (UNESP)BotucatuSão Paulo StateBrazil
| | - Tereza Cristina Da Silva
- School of Veterinary Medicine and Animal Science, Department of PathologyUniversity of São Paulo (USP)São PauloSão Paulo StateBrazil
| | - Bruno Cogliati
- School of Veterinary Medicine and Animal Science, Department of PathologyUniversity of São Paulo (USP)São PauloSão Paulo StateBrazil
| | - Luís Fernando Barbisan
- Botucatu Medical School, Experimental Research Unit (UNIPEX), Multimodel Drug Screening Platform – Laboratory of Chemically Induced and Experimental Carcinogenesis (MDSP‐LCQE)São Paulo State University (UNESP)BotucatuSão Paulo StateBrazil
- Biosciences Institute, Department of Structural and Functional BiologySão Paulo State University (UNESP)São Paulo StateBrazil
| | - Guilherme Ribeiro Romualdo
- Botucatu Medical School, Experimental Research Unit (UNIPEX), Multimodel Drug Screening Platform – Laboratory of Chemically Induced and Experimental Carcinogenesis (MDSP‐LCQE)São Paulo State University (UNESP)BotucatuSão Paulo StateBrazil
- Biosciences Institute, Department of Structural and Functional BiologySão Paulo State University (UNESP)São Paulo StateBrazil
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4
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Chen X, Yuan S, Mi L, Long Y, He H. Pannexin1: insight into inflammatory conditions and its potential involvement in multiple organ dysfunction syndrome. Front Immunol 2023; 14:1217366. [PMID: 37711629 PMCID: PMC10498923 DOI: 10.3389/fimmu.2023.1217366] [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: 05/09/2023] [Accepted: 08/10/2023] [Indexed: 09/16/2023] Open
Abstract
Sepsis represents a global health concern, and patients with severe sepsis are at risk of experiencing MODS (multiple organ dysfunction syndrome), which is associated with elevated mortality rates and a poorer prognosis. The development of sepsis involves hyperactive inflammation, immune disorder, and disrupted microcirculation. It is crucial to identify targets within these processes to develop therapeutic interventions. One such potential target is Panx1 (pannexin-1), a widely expressed transmembrane protein that facilitates the passage of molecules smaller than 1 KDa, such as ATP. Accumulating evidence has implicated the involvement of Panx1 in sepsis-associated MODS. It attracts immune cells via the purinergic signaling pathway, mediates immune responses via the Panx1-IL-33 axis, promotes immune cell apoptosis, regulates blood flow by modulating VSMCs' and vascular endothelial cells' tension, and disrupts microcirculation by elevating endothelial permeability and promoting microthrombosis. At the level of organs, Panx1 contributes to inflammatory injury in multiple organs. Panx1 primarily exacerbates injury and hinders recovery, making it a potential target for sepsis-induced MODS. While no drugs have been developed explicitly against Panx1, some compounds that inhibit Panx1 hemichannels have been used extensively in experiments. However, given that Panx1's role may vary during different phases of sepsis, more investigations are required before interventions against Panx1 can be applied in clinical. Overall, Panx1 may be a promising target for sepsis-induced MODS. Nevertheless, further research is needed to understand its complex role in different stages of sepsis fully and to develop suitable pharmaceutical interventions for clinical use.
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Affiliation(s)
| | | | | | - Yun Long
- Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Huaiwu He
- Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
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5
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Van Campenhout R, Caufriez A, Tabernilla A, Maerten A, De Boever S, Sanz-Serrano J, Kadam P, Vinken M. Pannexin1 channels in the liver: an open enemy. Front Cell Dev Biol 2023; 11:1220405. [PMID: 37492223 PMCID: PMC10363690 DOI: 10.3389/fcell.2023.1220405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 06/23/2023] [Indexed: 07/27/2023] Open
Abstract
Pannexin1 proteins form communication channels at the cell plasma membrane surface, which allow the transfer of small molecules and ions between the intracellular compartment and extracellular environment. In this way, pannexin1 channels play an important role in various cellular processes and diseases. Indeed, a plethora of human pathologies is associated with the activation of pannexin1 channels. The present paper reviews and summarizes the structure, life cycle, regulation and (patho)physiological roles of pannexin1 channels, with a particular focus on the relevance of pannexin1 channels in liver diseases.
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6
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Wang P, Shi B, Wang C, Wang Y, Que W, Jiang Z, Liu X, Jiang Q, Li H, Peng Z, Zhong L. Hepatic pannexin-1 mediates ST2 + regulatory T cells promoting resolution of inflammation in lipopolysaccharide-induced endotoxemia. Clin Transl Med 2022; 12:e849. [PMID: 35593197 PMCID: PMC9121315 DOI: 10.1002/ctm2.849] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 04/09/2022] [Accepted: 04/14/2022] [Indexed: 02/06/2023] Open
Abstract
Sepsis remains the most lethal infectious disease and substantially impairs patient prognosis after liver transplantation (LT). Our previous study reported a role of the pannexin 1 (PANX1)–interleukin‐33 (IL‐33) axis in activating innate immunity to protect against methicillin‐resistant Staphylococcus aureus infection; however, the role of PANX1 in regulating adaptive immunity in sepsis and the underlying mechanism are unclear. In this study, we examined the role of the PANX1–IL‐33 axis in protecting against sepsis caused by a gram‐negative bacterial infection in an independent LT cohort. Next, in animal studies, we assessed the immunological state of Panx1−/‐ mice with lipopolysaccharide (LPS)‐induced endotoxemia and then focused on the cytokine storm and regulatory T cells (Tregs), which are crucial for the resolution of inflammation. To generate liver‐specific Panx1‐deficient mice and mimic clinical LT procedures, a mouse LT model was established. We demonstrated that hepatic PANX1 deficiency exacerbated LPS‐induced endotoxemia and dysregulated the immune response in the mouse LT model. In hepatocytes, we confirmed that PANX1 positively regulated IL‐33 synthesis after LPS administration. We showed that the adenosine triphosphate‐P2X7 pathway regulated the hepatic PANX1–IL‐33 axis during endotoxemia in vitro and in vivo. Recombinant IL‐33 treatment rescued LPS‐induced endotoxemia by increasing the numbers of liver‐infiltrating ST2+ Tregs and attenuating the cytokine storm in hepatic PANX1‐deficient mice. In conclusion, our findings revealed that the hepatic PANX1–IL‐33 axis protects against endotoxemia and liver injury by targeting ST2+ Tregs and promoting the early resolution of hyperinflammation.
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Affiliation(s)
- Pusen Wang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Baojie Shi
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chunguang Wang
- Department of Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanyuan Wang
- Unit of Pathogenic Fungal Infection & Host Immunity, CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Weitao Que
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhongyi Jiang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xueni Liu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qianwei Jiang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hao Li
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhihai Peng
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Zhong
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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7
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Hakim A, Moll M, Brancale J, Liu J, Lasky-Su JA, Silverman EK, Vilarinho S, Jiang ZG, Pita-Juárez YH, Vlachos IS, Zhang X, Åberg F, Afdhal NH, Hobbs BD, Cho MH. Genetic Variation in the Mitochondrial Glycerol-3-Phosphate Acyltransferase Is Associated With Liver Injury. Hepatology 2021; 74:3394-3408. [PMID: 34216018 PMCID: PMC8639615 DOI: 10.1002/hep.32038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 06/17/2021] [Accepted: 06/28/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND AIMS Most of the genetic basis of chronic liver disease remains undiscovered. APPROACH AND RESULTS To identify genetic loci that modulate the risk of liver injury, we performed genome-wide association studies on circulating levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), and total bilirubin across 312,671 White British participants in the UK Biobank. We focused on variants associated with elevations in all four liver biochemistries at genome-wide significance (P < 5 × 10-8 ) and that replicated using Mass General Brigham Biobank in 19,323 European ancestry individuals. We identified a genetic locus in mitochondrial glycerol-3-phosphate acyltransferase (GPAM rs10787429) associated with increased levels of ALT (P = 1.4 × 10-30 ), AST (P = 3.6 × 10-10 ), ALP (P = 9.5 × 10-30 ), and total bilirubin (P = 2.9 × 10-12 ). This common genetic variant was also associated with an allele dose-dependent risk of alcohol-associated liver disease (odd ratio [OR] = 1.34, P = 2.6 × 10-5 ) and fatty liver disease (OR = 1.18, P = 5.8 × 10-4 ) by International Classification of Diseases, 10th Revision codes. We identified significant interactions between GPAM rs10787429 and elevated body mass index in association with ALT and AST (P = 7.1 × 10-9 and 3.95 × 10-8 , respectively), as well as between GPAM rs10787429 and weekly alcohol consumption in association with ALT, AST, and alcohol-associated liver disease (P = 4.0 × 10-2 , 1.6 × 10-2 , and 1.3 × 10-2 , respectively). Unlike previously described genetic variants that are associated with an increased risk of liver injury but confer a protective effect on circulating lipids, GPAM rs10787429 was associated with an increase in total cholesterol (P = 2.0 × 10-17 ), LDL cholesterol (P = 2.0 × 10-10 ), and HDL cholesterol (P = 6.6 × 10-37 ). Single-cell RNA-sequencing data demonstrated hepatocyte-predominant expression of GPAM in cells that co-express genes related to VLDL production (P = 9.4 × 10-103 ). CONCLUSIONS Genetic variation in GPAM is associated with susceptibility to liver injury. GPAM may represent a therapeutic target in chronic liver disease.
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Affiliation(s)
- Aaron Hakim
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
- Division of Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center, Boston, MA
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Matthew Moll
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
| | - Joseph Brancale
- Departments of Internal Medicine, Section of Digestive Diseases, and of Pathology, Yale School of Medicine, New Haven, CT
| | - Jiangyuan Liu
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Jessica A. Lasky-Su
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Edwin K. Silverman
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
| | - Silvia Vilarinho
- Departments of Internal Medicine, Section of Digestive Diseases, and of Pathology, Yale School of Medicine, New Haven, CT
| | - Z. Gordon Jiang
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
- Division of Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center, Boston, MA
| | | | - Ioannis S. Vlachos
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA
| | - Xuehong Zhang
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Fredrik Åberg
- Transplantation and Liver Surgery Clinic, Helsinki University Hospital, Helsinki, Finland
| | - Nezam H. Afdhal
- Division of Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center, Boston, MA
| | - Brian D. Hobbs
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
| | - Michael H. Cho
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
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8
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Cooreman A, Van Campenhout R, Crespo Yanguas S, Gijbels E, Leroy K, Pieters A, Tabernilla A, Van Brantegem P, Annaert P, Cogliati B, Vinken M. Cholestasis Differentially Affects Liver Connexins. Int J Mol Sci 2020; 21:E6534. [PMID: 32906817 PMCID: PMC7116118 DOI: 10.3390/ijms21186534] [Citation(s) in RCA: 8] [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: 07/03/2020] [Revised: 08/26/2020] [Accepted: 09/05/2020] [Indexed: 12/11/2022] Open
Abstract
Connexins are goal keepers of tissue homeostasis, including in the liver. As a result, they are frequently involved in disease. The current study was set up to investigate the effects of cholestatic disease on the production of connexin26, connexin32 and connexin43 in the liver. For this purpose, bile duct ligation, a well-known trigger of cholestatic liver injury, was applied to mice. In parallel, human hepatoma HepaRG cell cultures were exposed to cholestatic drugs and bile acids. Samples from both the in vivo and in vitro settings were subsequently subjected to assessment of mRNA and protein quantities as well as to in situ immunostaining. While the outcome of cholestasis on connexin26 and connexin43 varied among experimental settings, a more generalized repressing effect was seen for connexin32. This has also been observed in many other liver pathologies and could suggest a role for connexin32 as a robust biomarker of liver disease and toxicity.
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Affiliation(s)
- Axelle Cooreman
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.C.); (R.V.C.); (S.C.Y.); (E.G.); (K.L.); (A.P.); (A.T.)
| | - Raf Van Campenhout
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.C.); (R.V.C.); (S.C.Y.); (E.G.); (K.L.); (A.P.); (A.T.)
| | - Sara Crespo Yanguas
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.C.); (R.V.C.); (S.C.Y.); (E.G.); (K.L.); (A.P.); (A.T.)
| | - Eva Gijbels
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.C.); (R.V.C.); (S.C.Y.); (E.G.); (K.L.); (A.P.); (A.T.)
| | - Kaat Leroy
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.C.); (R.V.C.); (S.C.Y.); (E.G.); (K.L.); (A.P.); (A.T.)
| | - Alanah Pieters
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.C.); (R.V.C.); (S.C.Y.); (E.G.); (K.L.); (A.P.); (A.T.)
| | - Andrés Tabernilla
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.C.); (R.V.C.); (S.C.Y.); (E.G.); (K.L.); (A.P.); (A.T.)
| | - Pieter Van Brantegem
- Drug Delivery and Disposition, KU Leuven Department of Pharmaceutical and Pharmacological Sciences, 3000 Leuven, Belgium; (P.V.B.); (P.A.)
| | - Pieter Annaert
- Drug Delivery and Disposition, KU Leuven Department of Pharmaceutical and Pharmacological Sciences, 3000 Leuven, Belgium; (P.V.B.); (P.A.)
| | - Bruno Cogliati
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo 05508-270, Brazil;
| | - Mathieu Vinken
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.C.); (R.V.C.); (S.C.Y.); (E.G.); (K.L.); (A.P.); (A.T.)
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9
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Liver Sinusoidal Endothelial Cells Contribute to Hepatic Antigen-Presenting Cell Function and Th17 Expansion in Cirrhosis. Cells 2020; 9:cells9051227. [PMID: 32429209 PMCID: PMC7290576 DOI: 10.3390/cells9051227] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 02/06/2023] Open
Abstract
Hepatic immune function is compromised during cirrhosis. This study investigated the immune features of liver sinusoidal endothelial cells (LSECs) in two experimental models of cirrhosis. Dendritic cells, hepatic macrophages, and LSECs were isolated from carbon tetrachloride and bile duct-ligated rats. Gene expression of innate receptors, bacterial internalization, co-stimulatory molecules induction, and CD4+ T cell activation and differentiation were evaluated. Induced bacterial peritonitis and norfloxacin protocols on cirrhotic rats were also carried out. LSECs demonstrated an active immunosurveillance profile, as shown by transcriptional modulation of different scavenger and cell-adhesion genes, and their contribution to bacterial internalization. LSECs significantly increased their expression of CD40 and CD80 and stimulated CD4+ T cell activation marker CD71 in both models. The pro-inflammatory Th17 subset was expanded in CCl4-derived LSECs co-cultures. In the bile duct ligation (BDL) model, CD4+ T cell differentiation only occurred under induced bacterial peritonitis conditions. Differentiated pro-inflammatory Th cells by LSECs in both experimental models were significantly reduced with norfloxacin treatment, whereas Foxp3 tolerogenic Th CD4+ cells were expanded. Conclusion: LSECs’ participation in the innate-adaptive immune progression, their ability to stimulate pro-inflammatory CD4+ T cells expansion during liver damage, and their target role in norfloxacin-induced immunomodulation granted a specific competence to this cell population in cirrhosis.
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10
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Increased Expression of Adherens Junction Components in Mouse Liver following Bile Duct Ligation. Biomolecules 2019; 9:biom9100636. [PMID: 31652629 PMCID: PMC6843439 DOI: 10.3390/biom9100636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/10/2019] [Accepted: 10/19/2019] [Indexed: 12/15/2022] Open
Abstract
Adherens junctions, consisting of cadherins and catenins, are a group of cell-to-cell junctions that mediate mechanistic linkage between neighboring cells. By doing so, adherens junctions ensure direct intercellular contact and play an indispensable role in maintaining tissue architecture. Considering these critical functions, it is not surprising that adherens junctions are frequently involved in disease. In the present study, the effects of bile duct ligation—a surgical procedure to experimentally induce cholestatic and fibrotic liver pathology—on hepatic adherens junctions were investigated in mice. In essence, it was found that liver mRNA and protein levels of E-cadherin, β-catenin and γ-catenin drastically increase following bile duct ligation. These results could suggest a cytoprotective role for hepatic adherens junctions following bile duct ligation.
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11
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Kumar V, Dong Y, Kumar V, Almawash S, Mahato RI. The use of micelles to deliver potential hedgehog pathway inhibitor for the treatment of liver fibrosis. Am J Cancer Res 2019; 9:7537-7555. [PMID: 31695785 PMCID: PMC6831471 DOI: 10.7150/thno.38913] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 08/28/2019] [Indexed: 12/11/2022] Open
Abstract
Rationale: Hedgehog (Hh) pathway plays an essential role in liver fibrosis by promoting the proliferation of hepatic stellate cells (HSCs) by enhancing their metabolism via yes-associated protein 1 (YAP1). Despite the presence of several inhibitors, Hh signaling cannot be controlled exclusively due to their poor efficacy and the lack of a suitable delivery system to the injury site. Therefore, it is rationale to develop new potent Hh inhibitors and suitable delivery carriers. Methods: Based on the structure and activity of Hh inhibitor GDC-0449, we replaced its sulfonamide group with two methylpyridine-2yl at amide nitrogen to synthesize MDB5. We compared the Hh pathway inhibition and anti-fibrotic effect of MDB5 with GDC-0449 in vitro. Next, we developed MDB5 loaded micelles using our methoxy poly(ethylene glycol)-blockpoly(2-methyl-2-carboxyl-propylene carbonate-graft-dodecanol (PEG-PCC-g-DC) copolymer and characterized for physicochemical properties. We evaluated the therapeutic efficacy of MDB5 loaded micelles in common bile duct ligation (CBDL) induced liver fibrosis, mouse model. We also determined the intrahepatic distribution of fluorescently labeled micelles after MDB5 treatment. Results: Our results show that MDB5 was more potent in inhibiting Hh pathway components and HSC proliferation in vitro. We successfully developed MDB5 loaded micelles with particle size of 40 ± 10 nm and drug loading up to 10% w/w. MDB5 loaded micelles at the dose of 10 mg/kg were well tolerated by mice, without visible sign of toxicity. The serum enzyme activities elevated by CBDL was significantly decreased by MDB5 loaded micelles compared to GDC-0449 loaded micelles. MDB5 loaded micelles further decreased collagen deposition, HSC activation, and Hh activity and its target genes in the liver. MDB5 loaded micelles also prevented liver sinusoidal endothelial capillarization (LSEC) and therefore restored perfusion between blood and liver cells. Conclusions: Our study provides evidence that MDB5 was more potent in inhibiting Hh pathway in HSC-T6 cells and showed better hepatoprotection in CBDL mice compared to GDC-0449.
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12
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Cooreman A, Van Campenhout R, Ballet S, Annaert P, Van Den Bossche B, Colle I, Cogliati B, Vinken M. Connexin and Pannexin (Hemi)Channels: Emerging Targets in the Treatment of Liver Disease. Hepatology 2019; 69:1317-1323. [PMID: 30300925 DOI: 10.1002/hep.30306] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 09/17/2018] [Indexed: 12/20/2022]
Abstract
Connexin proteins are the building blocks of hemichannels, which dock further between adjacent cells to form gap junctions. Gap junctions control the intercellular exchange of critical homeostasis regulators. By doing so, gap junctions control virtually all aspects of the hepatic life cycle. In the last decade, it has become clear that connexin hemichannels also provide a pathway for cellular communication on their own independent of their role as structural precursors of gap junctions, namely between the cytosol of an individual cell and its extracellular environment. In contrast to gap junctions, connexin hemichannels become particularly active in liver disease by facilitating inflammation and cell death. This equally holds true for cellular channels composed of pannexins, being connexin-like proteins recently identified in the liver that gather in structures reminiscent of hemichannels. This paper gives an overview of the involvement of connexin-based and pannexin-based channels in noncancerous liver disease.
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Affiliation(s)
- Axelle Cooreman
- Department of Toxicology, Vrije Universiteit Brussel, Brussels, Belgium
| | | | - Steven Ballet
- Research Group of Organic Chemistry, Departments of Chemistry and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Pieter Annaert
- Drug Delivery and Disposition, KU Leuven Department of Pharmaceutical and Pharmacological Sciences, Leuven, Belgium
| | - Bert Van Den Bossche
- Department of Abdominal Surgery and Hepato-Pancreatico-Biliary Surgery, Algemeen Stedelijk Ziekenhuis Campus Aalst, Aalst, Belgium
| | - Isabelle Colle
- Department of Hepatology and Gastroenterology, Algemeen Stedelijk Ziekenhuis Campus Aalst, Aalst, Belgium
| | - Bruno Cogliati
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Mathieu Vinken
- Department of Toxicology, Vrije Universiteit Brussel, Brussels, Belgium
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13
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González Leiva DF. Highlight report: Role of the ATP-releasing Panx channels in liver fibrosis. EXCLI JOURNAL 2019; 18:8-9. [PMID: 30956634 PMCID: PMC6449672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 12/28/2018] [Indexed: 11/25/2022]
Affiliation(s)
- Daniela Fernanda González Leiva
- IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund, GERMANY,*To whom correspondence should be addressed: Daniela Fernanda González Leiva, IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund, GERMANY, E-mail:
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