51
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Bennett H, Troutman TD, Sakai M, Glass CK. Epigenetic Regulation of Kupffer Cell Function in Health and Disease. Front Immunol 2021; 11:609618. [PMID: 33574817 PMCID: PMC7870864 DOI: 10.3389/fimmu.2020.609618] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/08/2020] [Indexed: 12/13/2022] Open
Abstract
Kupffer cells, the resident macrophages of the liver, comprise the largest pool of tissue macrophages in the body. Within the liver sinusoids Kupffer cells perform functions common across many tissue macrophages including response to tissue damage and antigen presentation. They also engage in specialized activities including iron scavenging and the uptake of opsonized particles from the portal blood. Here, we review recent studies of the epigenetic pathways that establish Kupffer cell identity and function. We describe a model by which liver-environment specific signals induce lineage determining transcription factors necessary for differentiation of Kupffer cells from bone-marrow derived monocytes. We conclude by discussing how these lineage determining transcription factors (LDTFs) drive Kupffer cell behavior during both homeostasis and disease, with particular focus on the relevance of Kupffer cell LDTF pathways in the setting of non-alcoholic fatty liver disease and non-alcoholic steatohepatitis.
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Affiliation(s)
- Hunter Bennett
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Ty D Troutman
- Department of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Mashito Sakai
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, United States.,Department of Biochemistry & Molecular Biology, Nippon Medical School, Tokyo, Japan
| | - Christopher K Glass
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, United States.,Department of Medicine, University of California, San Diego, La Jolla, CA, United States
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55
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Meli VS, Atcha H, Veerasubramanian PK, Nagalla RR, Luu TU, Chen EY, Guerrero-Juarez CF, Yamaga K, Pandori W, Hsieh JY, Downing TL, Fruman DA, Lodoen MB, Plikus MV, Wang W, Liu WF. YAP-mediated mechanotransduction tunes the macrophage inflammatory response. SCIENCE ADVANCES 2020; 6:eabb8471. [PMID: 33277245 PMCID: PMC7717914 DOI: 10.1126/sciadv.abb8471] [Citation(s) in RCA: 130] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 10/20/2020] [Indexed: 05/11/2023]
Abstract
Macrophages are innate immune cells that adhere to the extracellular matrix within tissues. However, how matrix properties regulate their function remains poorly understood. Here, we report that the adhesive microenvironment tunes the macrophage inflammatory response through the transcriptional coactivator YAP. We find that adhesion to soft hydrogels reduces inflammation when compared to adhesion on stiff materials and is associated with reduced YAP expression and nuclear localization. Substrate stiffness and cytoskeletal polymerization, but not adhesive confinement nor contractility, regulate YAP localization. Furthermore, depletion of YAP inhibits macrophage inflammation, whereas overexpression of active YAP increases inflammation. Last, we show in vivo that soft materials reduce expression of inflammatory markers and YAP in surrounding macrophages when compared to stiff materials. Together, our studies identify YAP as a key molecule for controlling inflammation and sensing stiffness in macrophages and may have broad implications in the regulation of macrophages in health and disease.
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Affiliation(s)
- Vijaykumar S Meli
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
| | - Hamza Atcha
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
| | - Praveen Krishna Veerasubramanian
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
| | - Raji R Nagalla
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
| | - Thuy U Luu
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
- Department of Pharmaceutical Sciences, University of California, Irvine, Irvine, CA, USA
| | - Esther Y Chen
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, USA
| | - Christian F Guerrero-Juarez
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA, USA
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, USA
- Department of Mathematics, University of California, Irvine, Irvine, CA 92697, USA
- Center for Complex Biological Systems, University of California, Irvine, Irvine, CA 92697, USA
| | - Kosuke Yamaga
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA, USA
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, USA
- Center for Complex Biological Systems, University of California, Irvine, Irvine, CA 92697, USA
| | - William Pandori
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA, USA
- Institute for Immunology, University of California, Irvine, Irvine, CA, USA
| | - Jessica Y Hsieh
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
| | - Timothy L Downing
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA, USA
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, USA
- Center for Complex Biological Systems, University of California, Irvine, Irvine, CA 92697, USA
- Department of Microbiology and Molecular Genetics, University of California, Irvine, Irvine, CA, USA
| | - David A Fruman
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA, USA
- Institute for Immunology, University of California, Irvine, Irvine, CA, USA
| | - Melissa B Lodoen
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA, USA
- Institute for Immunology, University of California, Irvine, Irvine, CA, USA
| | - Maksim V Plikus
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA, USA
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, USA
- Center for Complex Biological Systems, University of California, Irvine, Irvine, CA 92697, USA
| | - Wenqi Wang
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA
| | - Wendy F Liu
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA.
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, USA
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, USA
- Institute for Immunology, University of California, Irvine, Irvine, CA, USA
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57
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Zhou A, Yu H, Liu J, Zheng J, Jia Y, Wu B, Xiang L. Role of Hippo-YAP Signaling in Osseointegration by Regulating Osteogenesis, Angiogenesis, and Osteoimmunology. Front Cell Dev Biol 2020; 8:780. [PMID: 32974339 PMCID: PMC7466665 DOI: 10.3389/fcell.2020.00780] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/24/2020] [Indexed: 02/05/2023] Open
Abstract
The social demand for dental implantation is growing at a rapid rate, while dentists are faced with the dilemma of implantation failures associated with unfavorable osseointegration. Clinical-friendly osteogenesis, angiogenesis and osteoimmunology around dental implants play a pivotal role in a desirable osseointegration and it's increasingly appreciated that Hippo-YAP signaling pathway is implicated in those biological processes both in vitro and in vivo in a variety of study. In this article we review the multiple effects of Hippo-YAP signaling in osseointegration of dental implants by regulating osteogenesis, angiogenesis and osteoimmunology in peri-implant tissue, as well as highlight prospective future directions of relevant investigation.
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Affiliation(s)
- Anqi Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Yu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiayi Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jianan Zheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yinan Jia
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bingfeng Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lin Xiang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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60
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Alharthi J, Latchoumanin O, George J, Eslam M. Macrophages in metabolic associated fatty liver disease. World J Gastroenterol 2020; 26:1861-1878. [PMID: 32390698 PMCID: PMC7201150 DOI: 10.3748/wjg.v26.i16.1861] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/10/2020] [Accepted: 04/17/2020] [Indexed: 02/06/2023] Open
Abstract
Metabolic associated fatty liver disease (MAFLD), formerly named non-alcoholic fatty liver disease is the most common liver disorder in many countries. The inflammatory subtype termed steatohepatitis is a driver of disease progression to cirrhosis, hepatocellular carcinoma, liver transplantation, and death, but also to extrahepatic complications including cardiovascular disease, diabetes and chronic kidney disease. The plasticity of macrophages in response to various environmental cues and the fact that they can orchestrate cross talk between different cellular players during disease development and progression render them an ideal target for drug development. This report reviews recent advances in our understanding of macrophage biology during the entire spectrum of MAFLD including steatosis, inflammation, fibrosis, and hepatocellular carcinoma, as well as for the extra-hepatic manifestations of MAFLD. We discuss the underlying molecular mechanisms of macrophage activation and polarization as well as cross talk with other cell types such as hepatocytes, hepatic stellate cells, and adipose tissue. We conclude with a discussion on the potential translational implications and challenges for macrophage based therapeutics for MAFLD.
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Affiliation(s)
- Jawaher Alharthi
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney 2145, NSW, Australia
| | - Olivier Latchoumanin
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney 2145, NSW, Australia
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney 2145, NSW, Australia
| | - Mohammed Eslam
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney 2145, NSW, Australia
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