1
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Gonzalez-Sanchez E, Vaquero J, Caballero-Diaz D, Grzelak J, Fusté NP, Bertran E, Amengual J, Garcia-Saez J, Martín-Mur B, Gut M, Esteve-Codina A, Alay A, Coulouarn C, Calero-Perez S, Valdecantos P, Valverde AM, Sánchez A, Herrera B, Fabregat I. The hepatocyte epidermal growth factor receptor (EGFR) pathway regulates the cellular interactome within the liver fibrotic niche. J Pathol 2024; 263:482-495. [PMID: 38872438 DOI: 10.1002/path.6299] [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: 01/10/2024] [Revised: 03/19/2024] [Accepted: 04/25/2024] [Indexed: 06/15/2024]
Abstract
Liver fibrosis is the consequence of chronic liver injury in the presence of an inflammatory component. Although the main executors of this activation are known, the mechanisms that lead to the inflammatory process that mediates the production of pro-fibrotic factors are not well characterized. Epidermal growth factor receptor (EGFR) signaling in hepatocytes is essential for the regenerative processes of the liver; however, its potential role in regulating the fibrotic niche is not yet clear. Our group generated a mouse model that expresses an inactive truncated form of the EGFR specifically in hepatocytes (ΔEGFR mice). Here, we have analyzed the response of WT and ΔEGFR mice to chronic treatment with carbon tetrachloride (CCl4), which induces a pro-inflammatory and fibrotic process in the liver. The results indicated that the hallmarks of liver fibrosis were attenuated in CCl4-treated ΔEGFR mice when compared with CCl4-treated WT mice, coinciding with a faster resolution of the fibrotic process and ameliorated damage. The absence of EGFR activity in hepatocytes induced changes in the pattern of immune cells in the liver, with a notable increase in the population of M2 macrophages, more related to fibrosis resolution, as well as in the population of lymphocytes related to eradication of the damage. Transcriptome analysis of hepatocytes, and secretome studies of extracellular media from in vitro experiments, allowed us to elucidate the specific molecular mechanisms regulated by EGFR that mediate hepatocyte production of both pro-fibrotic and pro-inflammatory mediators; these have consequences for the deposition of extracellular matrix proteins, as well as for the immune microenvironment. Overall, our study uncovered novel mechanistic insights regarding EGFR kinase-dependent actions in hepatocytes that reveal its key role in chronic liver damage. © 2024 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Grants
- EHDG1703 CIBEREHD, National Biomedical Research Institute on Liver and Gastrointestinal Diseases
- CERCA Programme/Generalitat de Catalunya
- CIVP20A6593 Fundacion Ramon Areces
- PID2019-108651RJ-I00 Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación, Spain
- PID2021-122551OB-100 Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación, Spain
- PID-2021-122766OB-100 Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación, Spain
- RTC2019-007125-1 Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación, Spain
- RTI2018-094052-B-100 Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación, Spain
- RTI2018-094079-B-100 Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación, Spain
- RTI2018-099098-B-100 Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación, Spain
- RYC2021-034121-I Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación, Spain
- European Regional Development Fund
- Instituto de Salud Carlos III
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Affiliation(s)
- Ester Gonzalez-Sanchez
- Oncobell Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet, Barcelona, Spain
- Biomedical Research Networking Center in CIBER in Hepatic and Digestive Diseases (CIBEREHD), ISCIII, Madrid, Spain
- Department of Physiological Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Department of Physiology and Pharmacology, Faculty of Pharmacy, University of Salamanca, Salamanca, Spain
| | - Javier Vaquero
- Oncobell Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet, Barcelona, Spain
- Biomedical Research Networking Center in CIBER in Hepatic and Digestive Diseases (CIBEREHD), ISCIII, Madrid, Spain
- Centro de Investigación del Cancer and Instituto de Biología Molecular y Celular del Cancer, CSIC-Universidad de Salamanca, Salamanca, Spain
| | - Daniel Caballero-Diaz
- Oncobell Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet, Barcelona, Spain
- Biomedical Research Networking Center in CIBER in Hepatic and Digestive Diseases (CIBEREHD), ISCIII, Madrid, Spain
| | - Jan Grzelak
- Oncobell Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet, Barcelona, Spain
| | - Noel P Fusté
- Oncobell Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet, Barcelona, Spain
| | - Esther Bertran
- Oncobell Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet, Barcelona, Spain
- Biomedical Research Networking Center in CIBER in Hepatic and Digestive Diseases (CIBEREHD), ISCIII, Madrid, Spain
| | - Josep Amengual
- Oncobell Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet, Barcelona, Spain
- Biomedical Research Networking Center in CIBER in Hepatic and Digestive Diseases (CIBEREHD), ISCIII, Madrid, Spain
| | - Juan Garcia-Saez
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain
- Health Research Institute of the Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Beatriz Martín-Mur
- CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Marta Gut
- CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
| | - Anna Esteve-Codina
- CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Ania Alay
- Unit of Bioinformatics for Precision Oncology, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain
- Preclinical and Experimental Research in Thoracic Tumors (PReTT), Oncobell Program, IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Cedric Coulouarn
- Inserm, Univ Rennes, OSS (Oncogenesis, Stress, Signaling) UMR_S 1242, Centre de Lutte contre le Cancer Eugène Marquis, Rennes, France
| | - Silvia Calero-Perez
- Biomedical Research Institute Sols-Morreale, Spanish National Research Council and Autonomous University of Madrid (IIBM, CSIC-UAM), Madrid, Spain
- Biomedical Research Networking Center in Diabetes and Associated Metabolic Disorders (CIBERDEM); ISCIII, Madrid, Spain
| | - Pilar Valdecantos
- Biomedical Research Institute Sols-Morreale, Spanish National Research Council and Autonomous University of Madrid (IIBM, CSIC-UAM), Madrid, Spain
- Biomedical Research Networking Center in Diabetes and Associated Metabolic Disorders (CIBERDEM); ISCIII, Madrid, Spain
| | - Angela M Valverde
- Biomedical Research Institute Sols-Morreale, Spanish National Research Council and Autonomous University of Madrid (IIBM, CSIC-UAM), Madrid, Spain
- Biomedical Research Networking Center in Diabetes and Associated Metabolic Disorders (CIBERDEM); ISCIII, Madrid, Spain
| | - Aránzazu Sánchez
- Biomedical Research Networking Center in CIBER in Hepatic and Digestive Diseases (CIBEREHD), ISCIII, Madrid, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain
- Health Research Institute of the Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Blanca Herrera
- Biomedical Research Networking Center in CIBER in Hepatic and Digestive Diseases (CIBEREHD), ISCIII, Madrid, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain
- Health Research Institute of the Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Isabel Fabregat
- Oncobell Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet, Barcelona, Spain
- Biomedical Research Networking Center in CIBER in Hepatic and Digestive Diseases (CIBEREHD), ISCIII, Madrid, Spain
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2
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Zhang R, Zhan Y, Lang Z, Li Y, Zhang W, Zheng J. LncRNA-SNHG5 mediates activation of hepatic stellate cells by regulating NF2 and Hippo pathway. Commun Biol 2024; 7:266. [PMID: 38438584 PMCID: PMC10912598 DOI: 10.1038/s42003-024-05971-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 02/26/2024] [Indexed: 03/06/2024] Open
Abstract
Long noncoding RNA small nucleolar RNA host gene 5 (SNHG5) is an oncogene found in various human cancers. However, it is unclear what role SNHG5 plays in activating hepatic stellate cells (HSCs) and liver fibrosis. In this study, SNHG5 was found to be upregulated in activated HSCs in vitro and in primary HSCs isolated from fibrotic liver in vivo, and inhibition of SNHG5 suppressed HSC activation. Notably, Neurofibromin 2 (NF2), the main activator for Hippo signalling, was involved in the effects of SNHG5 on HSC activation. The interaction between SNHG5 and NF2 protein was further confirmed, and preventing the combination of the two could effectively block the effects of SNHG5 inhibition on EMT process and Hippo signaling. Additionally, higher SNHG5 was found in chronic hepatitis B patients and associated with the fibrosis stage. Altogether, we demonstrate that SNHG5 could serve as an activated HSCs regulator via regulating NF2 and Hippo pathway.
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Affiliation(s)
- Rongrong Zhang
- Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yating Zhan
- Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Zhichao Lang
- Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yifei Li
- Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Weizhi Zhang
- Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Jianjian Zheng
- Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
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3
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Zhang Y, Wu D, Tian X, Chen B. From hepatitis B virus infection to acute-on-chronic liver failure: The dynamic role of hepatic macrophages. Scand J Immunol 2024; 99:e13349. [PMID: 38441398 DOI: 10.1111/sji.13349] [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: 08/26/2023] [Revised: 11/15/2023] [Accepted: 12/11/2023] [Indexed: 03/07/2024]
Abstract
Acute-on-chronic liver failure (ACLF) is a progressive disease that is associated with rapid worsening of clinical symptoms and high mortality. A multicentre prospective study from China demonstrated that patients with hepatitis B virus-related ACLF (HBV-ACLF) exhibited worse clinical characteristics and higher mortality rates compared to non-HBV-ACLF patients. Immune dysregulation is closely linked to the potential mechanisms of initiation and progression of ACLF. Innate immune response, which is represented by monocytes/macrophages, is up-regulated across ACLF development. This suggests that monocytes/macrophages play an essential role in maintaining the immune homeostasis of ACLF. Information that has been published in recent years shows that the immune status and function of monocytes/macrophages vary in ACLF precipitated by different chronic liver diseases. Monocytes/macrophages have an immune activation effect in hepatitis B-precipitated-ACLF, but they exhibit an immune suppression in cirrhosis-precipitated-ACLF. Therefore, this review aims to explain whether this difference affects the clinical outcome in HBV-ACLF patients as well as the mechanisms involved. We summarize the novel findings that highlight the dynamic polarization phenotype and functional status of hepatic macrophages from the stage of HBV infection to ACLF development. Moreover, we discuss how different HBV-related liver disease tissue microenvironments affect the phenotype and function of hepatic macrophages. In summary, increasing developments in understanding the differences in immune phenotype and functional status of hepatic macrophages in ACLF patients will provide new perspectives towards the effective restoration of ACLF immune homeostasis.
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Affiliation(s)
- Yu Zhang
- Department of Hepatology, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Dongsheng Wu
- Department of Anorectal Surgical, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Xiaoling Tian
- Department of Hepatology, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Bin Chen
- Department of Hepatology, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan Province, China
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4
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Yao S, Zhou Z, Wang L, Lv H, Liu D, Zhu Q, Zhang X, Zhao G, Hu Y. Targeting endometrial inflammation in intrauterine adhesion ameliorates endometrial fibrosis by priming MSCs to secrete C1INH. iScience 2023; 26:107201. [PMID: 37456855 PMCID: PMC10344943 DOI: 10.1016/j.isci.2023.107201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/21/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023] Open
Abstract
Intrauterine adhesion (IUA) is a common cause of uterine infertility and its histopathologic characteristic is endometrial fibrosis. A shortage of stem cells in the endometrial basalis has been recognized as a common cause of IUA development because approximately 90% of patients suffer from IUA after endometrial injury. In this study, we provide evidence that persistent inflammation is the main contributor to endometrial fibrosis in IUA patients. We further found that treating an IUA-like mouse model with ITI-hUC-MSCs (hUC-MSCs reprogrammed by IL-1β, TNF-α and IFN-γ) significantly decreased endometrial inflammation and fibrosis. Mechanistically, high levels of complement 1 inhibitor (C1INH) secreted by ITI-hUC-MSCs prevented inflammation from inducing profibrotic CD301+ macrophage polarization by downregulating the JAK-STAT signaling pathway. In conclusion, persistent inflammation in the endometria of IUA patients provides macrophage polarization with a profibrotic niche to promote endometrial fibrosis, and the powerful immunomodulatory effects of ITI-hUC-MSCs improve the immune microenvironment of endometrial regeneration.
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Affiliation(s)
- Simin Yao
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Zhenhua Zhou
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Limin Wang
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Haining Lv
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Dan Liu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Qi Zhu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Xiwen Zhang
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Guangfeng Zhao
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Yali Hu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
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5
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Pei Q, Yi Q, Tang L. Liver Fibrosis Resolution: From Molecular Mechanisms to Therapeutic Opportunities. Int J Mol Sci 2023; 24:ijms24119671. [PMID: 37298621 DOI: 10.3390/ijms24119671] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/25/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
The liver is a critical system for metabolism in human beings, which plays an essential role in an abundance of physiological processes and is vulnerable to endogenous or exogenous injuries. After the damage to the liver, a type of aberrant wound healing response known as liver fibrosis may happen, which can result in an excessive accumulation of extracellular matrix (ECM) and then cause cirrhosis or hepatocellular carcinoma (HCC), seriously endangering human health and causing a great economic burden. However, few effective anti-fibrotic medications are clinically available to treat liver fibrosis. The most efficient approach to liver fibrosis prevention and treatment currently is to eliminate its causes, but this approach's efficiency is too slow, or some causes cannot be fully eliminated, which causes liver fibrosis to worsen. In cases of advanced fibrosis, the only available treatment is liver transplantation. Therefore, new treatments or therapeutic agents need to be explored to stop the further development of early liver fibrosis or to reverse the fibrosis process to achieve liver fibrosis resolution. Understanding the mechanisms that lead to the development of liver fibrosis is necessary to find new therapeutic targets and drugs. The complex process of liver fibrosis is regulated by a variety of cells and cytokines, among which hepatic stellate cells (HSCs) are the essential cells, and their continued activation will lead to further progression of liver fibrosis. It has been found that inhibiting HSC activation, or inducing apoptosis, and inactivating activated hepatic stellate cells (aHSCs) can reverse fibrosis and thus achieve liver fibrosis regression. Hence, this review will concentrate on how HSCs become activated during liver fibrosis, including intercellular interactions and related signaling pathways, as well as targeting HSCs or liver fibrosis signaling pathways to achieve the resolution of liver fibrosis. Finally, new therapeutic compounds targeting liver fibrosis are summarized to provide more options for the therapy of liver fibrosis.
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Affiliation(s)
- Qiying Pei
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Qian Yi
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou 646000, China
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
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Wang X, Wang Z, Liu B, Jin R, Song Y, Fei R, Cong X, Huang R, Li X, Yang J, Wei L, Rao H, Liu F. Characteristic gene expression in the liver monocyte-macrophage-DC system is associated with the progression of fibrosis in NASH. Front Immunol 2023; 14:1098056. [PMID: 36911682 PMCID: PMC9998489 DOI: 10.3389/fimmu.2023.1098056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/06/2023] [Indexed: 02/26/2023] Open
Abstract
Background The monocyte-macrophage-dendritic cell (DC) (MMD) system exerts crucial functions that may modulate fibrogenesis in nonalcoholic steatohepatitis (NASH). In this study, we explored the cell characteristics, distribution and developmental trajectory of the liver MMD system in NASH mice with fibrosis and clarified characteristic genes of the MMD system involved in liver fibrosis progression in NASH mice and patients. Methods Single cells in liver tissue samples from NASH and normal mice were quantified using single-cell RNA sequencing (scRNA-seq) analysis. Differentially expressed genes (DEGs) in the MMD system by pseudotime analysis were validated by tyramide signal amplification (TSA)-immunohistochemical staining (IHC) and analyzed by second harmonic generation (SHG)/two-photon excitation fluorescence (TPEF). Results Compared with control mice, there were increased numbers of monocytes, Kupffer cells, and DCs in two NASH mouse models. From the transcriptional profiles of these single cells, we identified 8 monocyte subsets (Mono1-Mono8) with different molecular and functional properties. Furthermore, the pseudotime analysis showed that Mono5 and Mono6 were at the beginning of the trajectory path, whereas Mono2, Mono4, Kupffer cells and DCs were at a terminal state. Genes related to liver collagen production were at the late stage of this trajectory path. DEGs analysis revealed that the genes Fmnl1 and Myh9 in the MMD system were gradually upregulated during the trajectory. By TSA-IHC, the Fmnl1 and Myh9 expression levels were increased and associated with collagen production and fibrosis stage in NASH mice and patients. Conclusions Our transcriptome data provide a novel landscape of the MMD system that is involved in advanced NASH disease status. Fmnl1 and Myh9 expression in the MMD system was associated with the progression of NASH fibrosis.
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Affiliation(s)
- Xiaoxiao Wang
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Zilong Wang
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Baiyi Liu
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Rui Jin
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Yuyun Song
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Ran Fei
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Xu Cong
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Rui Huang
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Xiaohe Li
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Jia Yang
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Lai Wei
- Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
| | - Huiying Rao
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
| | - Feng Liu
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, Beijing, China
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7
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Ding J, Xu M, Du W, Fang ZQ, Xu H, Liu JJ, Song P, Xu C, Li ZW, Yue ZS, Ling YW, Duan JL, Tao KS, He F, Wang L. Myeloid-specific blockade of Notch signaling ameliorates nonalcoholic fatty liver disease in mice. Int J Biol Sci 2023; 19:1941-1954. [PMID: 37063432 PMCID: PMC10092768 DOI: 10.7150/ijbs.80122] [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: 10/23/2022] [Accepted: 03/05/2023] [Indexed: 04/18/2023] Open
Abstract
Rationale: Macrophages play a central role in the development and progression of nonalcoholic fatty liver disease (NAFLD). Studies have shown that Notch signaling mediated by transcription factor recombination signal binding protein for immunoglobulin kappa J region (RBP-J), is implicated in macrophage activation and plasticity. Naturally, we asked whether Notch signaling in macrophages plays a role in NAFLD, whether regulating Notch signaling in macrophages could serve as a therapeutic strategy to treat NAFLD. Methods: Immunofluorescence staining was used to detect the changes of macrophage Notch signaling in the livers of human patients with NAFLD and choline deficient amino acid-defined (CDAA) diet-fed mice. Lyz2-Cre RBP-Jflox or wild-type C57BL/6 male mice were fed with CDAA or high fat diet (HFD) to induce experimental steatohepatitis or steatosis, respectively. Liver histology examinations were performed using hematoxylin-eosin (H&E), Oil Red O staining, Sirius red staining and immunohistochemistry staining for F4/80, Col1α1 and αSMA. The expression of inflammatory factors, fibrosis or lipid metabolism associated genes were evaluated by quantitative reverse transcription (qRT)-PCR, Western blot or enzyme-linked immunosorbent assay (ELISA). The mRNA expression of liver samples was profiled by using RNA-seq. A hairpin-type decoy oligodeoxynucleotides (ODNs) for transcription factor RBP-J was loaded into bEnd.3-derived exosomes by electroporating. Mice with experimental NAFLD were treated with exosomes loading RBP-J decoy ODNs via tail vein injection. In vivo distribution of exosomes was analyzed by fluorescence labeling and imaging. Results: The results showed that Notch signaling was activated in hepatic macrophages in human with NAFLD or in CDAA-fed mice. Myeloid-specific RBP-J deficiency decreased the expression of inflammatory factors interleukin-1 beta (IL1β) and tumor necrosis factor alpha (TNFα), attenuated experimental steatohepatitis in mice. Furthermore, we found that Notch blockade attenuated lipid accumulation in hepatocytes by inhibiting the expression of IL1β and TNFα in macrophages in vitro. Meanwhile, we observed that tail vein-injected exosomes were mainly taken up by hepatic macrophages in mice with steatohepatitis. RBP-J decoy ODNs delivered by exosomes could efficiently inhibit Notch signaling in hepatic macrophages in vivo and ameliorate steatohepatitis or steatosis in CDAA or HFD mice, respectively. Conclusions: Combined, macrophage RBP-J promotes the progression of NAFLD at least partially through regulating the expression of pro-inflammatory cytokines IL1β and TNFα. Infusion of exosomes loaded with RBP-J decoy ODNs might be a promising therapy to treat NAFLD.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Kai-Shan Tao
- ✉ Corresponding authors: Kai-Shan Tao (), Fei He (, ORCID: https://orcid.org/0000-0001-8368-5030) and Lin Wang ()
| | - Fei He
- ✉ Corresponding authors: Kai-Shan Tao (), Fei He (, ORCID: https://orcid.org/0000-0001-8368-5030) and Lin Wang ()
| | - Lin Wang
- ✉ Corresponding authors: Kai-Shan Tao (), Fei He (, ORCID: https://orcid.org/0000-0001-8368-5030) and Lin Wang ()
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8
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Avery D, Morandini L, Sheakley LS, Shah AH, Bui L, Abaricia JO, Olivares-Navarrete R. Canonical Wnt signaling enhances pro-inflammatory response to titanium by macrophages. Biomaterials 2022; 289:121797. [PMID: 36156410 PMCID: PMC10262842 DOI: 10.1016/j.biomaterials.2022.121797] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/22/2022] [Accepted: 09/05/2022] [Indexed: 11/19/2022]
Abstract
Biomaterial characteristics like surface roughness and wettability can determine the phenotype of macrophages following implantation. We have demonstrated that inhibiting Wnt ligand secretion abolishes macrophage polarization in vitro and in vivo; however, the role of canonical Wnt signaling in macrophage activation in response to physical and chemical biomaterial cues is unknown. The aim of this study was to understand whether canonical Wnt signaling affects the response of macrophages to titanium (Ti) surface roughness or wettability in vitro and in vivo. Activating canonical Wnt signaling increased expression of toll-like receptors and interleukin receptors and secreted pro-inflammatory cytokines and reduced anti-inflammatory cytokines on Ti, regardless of surface properties. Inhibiting canonical Wnt signaling reduced pro-inflammatory cytokines on all Ti surfaces and increased anti-inflammatory cytokines on rough or rough-hydrophilic Ti. In vivo, activating canonical Wnt signaling increased total macrophages, pro-inflammatory macrophages, and T cells and decreased anti-inflammatory macrophages on both smooth and rough-hydrophilic implants. Functionally, canonical Wnt activation increases pro-inflammatory macrophage response to cell and cell-extracellular matrix lysates. These results demonstrate that activating canonical Wnt signaling primes macrophages to a pro-inflammatory phenotype that affects their response to Ti implants in vitro and in vivo.
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Affiliation(s)
- Derek Avery
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Lais Morandini
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Luke S Sheakley
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Arth H Shah
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Loc Bui
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Jefferson O Abaricia
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States.
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