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Wu H, Gao W, Ma Y, Zhong X, Qian J, Huang D, Ge J. TRIM25-mediated XRCC1 ubiquitination accelerates atherosclerosis by inducing macrophage M1 polarization and programmed death. Inflamm Res 2024:10.1007/s00011-024-01906-4. [PMID: 38896288 DOI: 10.1007/s00011-024-01906-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 06/10/2024] [Accepted: 06/12/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND Macrophage-mediated cleaning up of dead cells is a crucial determinant in reducing coronary artery inflammation and maintaining vascular homeostasis. However, this process also leads to programmed death of macrophages. So far, the role of macrophage death in the progression of atherosclerosis remains controversial. Also, the underlying mechanism by which transcriptional regulation and reprogramming triggered by macrophage death pathways lead to changes in vascular inflammation and remodeling are still largely unknown. TRIM25-mediated RIG-I signaling plays a key role in regulation of macrophages fate, however the role of TRIM25 in macrophage death-mediated atherosclerotic progression remains unclear. This study aims to investigate the relationship between TRIM25 and macrophage death in atherosclerosis. METHODS A total of 34 blood samples of patients with coronary stent implantation, including chronic total occlusion (CTO) leisions (n = 14) or with more than 50% stenosis of a coronary artery but without CTO leisions (n = 20), were collected, and the serum level of TRIM25 was detected by ELISA. Apoe-/- mice with or without TRIM25 gene deletion were fed with the high-fat diet (HFD) for 12 weeks and the plaque areas, necrotic core size, aortic fibrosis and inflammation were investigated. TRIM25 wild-type and deficient macrophages were isolated, cultured and stimulated with ox-LDL, RNA-seq, real-time PCR, western blot and FACS experiments were used to screen and validate signaling pathways caused by TRIM25 deletion. RESULTS Downregulation of TRIM25 was observed in circulating blood of CTO patients and also in HFD-induced mouse aortas. After HFD for 12 weeks, TRIM25-/-ApoeE-/- mice developed smaller atherosclerotic plaques, less inflammation, lower collagen content and aortic fibrosis compared with TRIM25+/+ApoeE-/- mice. By RNA-seq and KEGG enrichment analysis, we revealed that deletion of TRIM25 mainly affected pyroptosis and necroptosis pathways in ox-LDL-induced macrophages, and the expressions of PARP1 and RIPK3, were significantly decreased in TRIM25 deficient macrophages. Overexpression of TRIM25 promoted M1 polarization and necroptosis of macrophages, while inhibition of PARP1 reversed this process. Further, we observed that XRCC1, a repairer of DNA damage, was significantly upregulated in TRIM25 deficient macrophages, inhibiting PARP1 activity and PARP1-mediated pro-inflammatory change, M1 polarization and necroptosis of macrophages. By contrast, TRIM25 overexpression mediated ubiquitination of XRCC1, and the inhibition of XRCC1 released PARP1, and activated macrophage M1 polarization and necroptosis, which accelerated aortic inflammation and atherosclerotic plaque progression. CONCLUSIONS Our study has uncovered a crucial role of the TRIM25-XRCC1Ub-PARP1-RIPK3 axis in regulating macrophage death during atherosclerosis, and we highlight the potential therapeutic significance of macrophage reprogramming regulation in preventing the development of atherosclerosis.
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Affiliation(s)
- Hongxian Wu
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China
| | - Wei Gao
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China
| | - Yuanji Ma
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China
| | - Xin Zhong
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China
| | - Juying Qian
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China
| | - Dong Huang
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China.
| | - Junbo Ge
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China.
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Stepanenko E, Bondareva N, Sheremet A, Fedina E, Tikhomirov A, Gerasimova T, Poberezhniy D, Makarova I, Tarantul V, Zigangirova N, Nenasheva V. Identification of Key TRIM Genes Involved in Response to Pseudomonas aeruginosa or Chlamydia spp. Infections in Human Cell Lines and in Mouse Organs. Int J Mol Sci 2023; 24:13290. [PMID: 37686095 PMCID: PMC10487655 DOI: 10.3390/ijms241713290] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/15/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Bacterial infections represent an unsolved problem today since bacteria can evade antibiotics and suppress the host's immune response. A family of TRIM proteins is known to play a role in antiviral defense. However, the data on the involvement of the corresponding genes in the antibacterial response are limited. Here, we used RT-qPCR to profile the transcript levels of TRIM genes, as well as interferons and inflammatory genes, in human cell lines (in vitro) and in mice (in vivo) after bacterial infections caused by Pseudomonas aeruginosa and Chlamydia spp. As a result, the genes were identified that are involved in the overall immune response and associated primarily with inflammation in human cells and in mouse organs when infected with both pathogens (TRIM7, 8, 14, 16, 17, 18, 19, 20, 21, 47, 68). TRIMs specific to the infection (TRIM59 for P. aeruginosa, TRIM67 for Chlamydia spp.) were revealed. Our findings can serve as a basis for further, more detailed studies on the mechanisms of the immune response to P. aeruginosa and Chlamydia spp. Studying the interaction between bacterial pathogens and the immune system contributes to the search for new ways to successfully fight bacterial infections.
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Affiliation(s)
- Ekaterina Stepanenko
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre “Kurchatov Institute”, Moscow 123182, Russia; (E.S.)
| | - Natalia Bondareva
- Laboratory for Chlamydiosis, National Research Center for Epidemiology and Microbiology Named after N. F. Gamaleya, Russian Health Ministry, Moscow 123098, Russia
| | - Anna Sheremet
- Laboratory for Chlamydiosis, National Research Center for Epidemiology and Microbiology Named after N. F. Gamaleya, Russian Health Ministry, Moscow 123098, Russia
| | - Elena Fedina
- Laboratory for Chlamydiosis, National Research Center for Epidemiology and Microbiology Named after N. F. Gamaleya, Russian Health Ministry, Moscow 123098, Russia
| | - Alexei Tikhomirov
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre “Kurchatov Institute”, Moscow 123182, Russia; (E.S.)
- Department of Chemistry and Technology of Biomedical Pharmaceuticals, D. Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia
| | - Tatiana Gerasimova
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre “Kurchatov Institute”, Moscow 123182, Russia; (E.S.)
| | - Daniil Poberezhniy
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre “Kurchatov Institute”, Moscow 123182, Russia; (E.S.)
| | - Irina Makarova
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre “Kurchatov Institute”, Moscow 123182, Russia; (E.S.)
| | - Vyacheslav Tarantul
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre “Kurchatov Institute”, Moscow 123182, Russia; (E.S.)
| | - Nailya Zigangirova
- Laboratory for Chlamydiosis, National Research Center for Epidemiology and Microbiology Named after N. F. Gamaleya, Russian Health Ministry, Moscow 123098, Russia
| | - Valentina Nenasheva
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre “Kurchatov Institute”, Moscow 123182, Russia; (E.S.)
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Ebstein SY, Rafique A, Zhou Y, Krasco A, Montalvo-Ortiz W, Yu L, Custodio L, Adam RC, Bloch N, Lee K, Adewale F, Vergata D, Luz A, Coquery S, Daniel B, Ullman E, Franklin MC, Hermann A, Huang T, Olson W, Davis S, Murphy AJ, Sleeman MA, Wei J, Skokos D. VSIG4 interaction with heparan sulfates inhibits VSIG4-complement binding. Glycobiology 2023; 33:591-604. [PMID: 37341346 PMCID: PMC10426322 DOI: 10.1093/glycob/cwad050] [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: 07/18/2022] [Revised: 06/12/2023] [Accepted: 06/20/2023] [Indexed: 06/22/2023] Open
Abstract
V-set and immunoglobulin domain-containing 4 (VSIG4) is a complement receptor of the immunoglobulin superfamily that is specifically expressed on tissue resident macrophages, and its many reported functions and binding partners suggest a complex role in immune function. VSIG4 is reported to have a role in immune surveillance as well as in modulating diverse disease phenotypes such as infections, autoimmune conditions, and cancer. However, the mechanism(s) governing VSIG4's complex, context-dependent role in immune regulation remains elusive. Here, we identify cell surface and soluble glycosaminoglycans, specifically heparan sulfates, as novel binding partners of VSIG4. We demonstrate that genetic deletion of heparan sulfate synthesis enzymes or cleavage of cell-surface heparan sulfates reduced VSIG4 binding to the cell surface. Furthermore, binding studies demonstrate that VSIG4 interacts directly with heparan sulfates, with a preference for highly sulfated moieties and longer glycosaminoglycan chains. To assess the impact on VSIG4 biology, we show that heparan sulfates compete with known VSIG4 binding partners C3b and iC3b. Furthermore, mutagenesis studies indicate that this competition occurs through overlapping binding epitopes for heparan sulfates and complement on VSIG4. Together these data suggest a novel role for heparan sulfates in VSIG4-dependent immune modulation.
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Affiliation(s)
- Sarah Y Ebstein
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Ashique Rafique
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Yi Zhou
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Amanda Krasco
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Welby Montalvo-Ortiz
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Lola Yu
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Luisaidy Custodio
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Rene C Adam
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Nicolin Bloch
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Ken Lee
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Funmilola Adewale
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Dominic Vergata
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Antonio Luz
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Sebastien Coquery
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Benjamin Daniel
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Erica Ullman
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Matthew C Franklin
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Aynur Hermann
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Tammy Huang
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - William Olson
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Samuel Davis
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Andrew J Murphy
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Matthew A Sleeman
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Joyce Wei
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Dimitris Skokos
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
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Liu B, Cheng L, Gao H, Zhang J, Dong Y, Gao W, Yuan S, Gong T, Huang W. The biology of VSIG4: Implications for the treatment of immune-mediated inflammatory diseases and cancer. Cancer Lett 2023; 553:215996. [PMID: 36343787 DOI: 10.1016/j.canlet.2022.215996] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/30/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022]
Abstract
V-set and immunoglobulin domain containing 4 (VSIG4), a type I transmembrane receptor exclusively expressed in a subset of tissue-resident macrophages, plays a pivotal role in clearing C3-opsonized pathogens and their byproducts from the circulation. VSIG4 maintains immune homeostasis by suppressing the activation of complement pathways or T cells and inducing regulatory T-cell differentiation, thereby inhibiting the development of immune-mediated inflammatory diseases but enhancing cancer progression. Consequently, VSIG4 exhibits a potential therapeutic effect for immune-mediated inflammatory diseases, but also is regarded as a novel target of immune checkpoint inhibition in cancer therapy. Recently, soluble VSIG4, the extracellular domain of VSIG4, shed from the surface of macrophages, has been found to be a biomarker to define macrophage activation-related diseases. This review mainly summarizes recent new findings of VSIG4 in macrophage phagocytosis and immune homeostasis, and discusses its potential diagnostic and therapeutic usage in infection, inflammation, and cancer.
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Affiliation(s)
- Bei Liu
- Department of Hematology, The Fifth Medical Center of PLA General Hospital, Beijing, 100071, China; PLA 307 Clinical College of Anhui Medical University, Beijing, 100071, China
| | - Li Cheng
- Department of Hematology, The Fifth Medical Center of PLA General Hospital, Beijing, 100071, China
| | - Honghao Gao
- Department of Hematology, The Fifth Medical Center of PLA General Hospital, Beijing, 100071, China
| | - Jiale Zhang
- Department of Thoracic Surgery, The Sixth Medical Center of PLA General Hospital, Fuchenglu 6#, Haidian District, Beijing, 100048, China
| | - Yanxin Dong
- Department of Thoracic Surgery, The Sixth Medical Center of PLA General Hospital, Fuchenglu 6#, Haidian District, Beijing, 100048, China
| | - Wenda Gao
- Antagen Institute for Biomedical Research, Boston, MA, 02021, USA
| | - Shunzong Yuan
- Department of Hematology, The Fifth Medical Center of PLA General Hospital, Beijing, 100071, China; PLA 307 Clinical College of Anhui Medical University, Beijing, 100071, China.
| | - Taiqian Gong
- Department of Thoracic Surgery, The Sixth Medical Center of PLA General Hospital, Fuchenglu 6#, Haidian District, Beijing, 100048, China.
| | - Wenrong Huang
- Department of Hematology, The Fifth Medical Center of PLA General Hospital, Beijing, 100071, China.
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5
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Li Y, Wang Q, Li J, Li A, Wang Q, Zhang Q, Chen Y. Therapeutic modulation of V Set and Ig domain-containing 4 (VSIG4) signaling in immune and inflammatory diseases. Cytotherapy 2023; 25:561-572. [PMID: 36642683 DOI: 10.1016/j.jcyt.2022.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 01/15/2023]
Abstract
Inflammation is the result of acute and chronic stresses, caused by emotional or physical trauma, or nutritional or environmental pollutants, and brings serious harm to human life and health. As an important cellular component of the innate immune barrier, the macrophage plays a key role in maintaining tissue homeostasis and promoting tissue repair by controlling infection and resolving inflammation. Several studies suggest that V Set and Ig domain-containing 4 is specifically expressed in tissue macrophages and is associated with a variety of inflammatory diseases. In this paper, we mainly summarize the recent research on V Set and Ig domain-containing 4 structures, functions, function and roles in acute and chronic inflammatory diseases, and provide a novel therapeutic avenue for the treatment of inflammatory diseases, including nervous system, urinary, respiratory and metabolic diseases.
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Affiliation(s)
- You Li
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China; Engineering Technology Research Center for the Utilization of Functional Components of Organic Natural Products, Dalian University, Dalian, Liaoning, China
| | - Qi Wang
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China; Engineering Technology Research Center for the Utilization of Functional Components of Organic Natural Products, Dalian University, Dalian, Liaoning, China
| | - Jiaxin Li
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China; Engineering Technology Research Center for the Utilization of Functional Components of Organic Natural Products, Dalian University, Dalian, Liaoning, China
| | - Aohan Li
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China; Engineering Technology Research Center for the Utilization of Functional Components of Organic Natural Products, Dalian University, Dalian, Liaoning, China
| | - Qianqian Wang
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China; Engineering Technology Research Center for the Utilization of Functional Components of Organic Natural Products, Dalian University, Dalian, Liaoning, China
| | - Qinggao Zhang
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China; Engineering Technology Research Center for the Utilization of Functional Components of Organic Natural Products, Dalian University, Dalian, Liaoning, China.
| | - Yingqing Chen
- Chronic Disease Research Center, Medical College, Dalian University, Dalian, Liaoning, China; Engineering Technology Research Center for the Utilization of Functional Components of Organic Natural Products, Dalian University, Dalian, Liaoning, China.
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Gong X, Zhao Q, Wu Y, Zhou H, Ding S, Zhu K. Mucoid Acinetobacter baumannii enhances anti-phagocytosis through reducing C3b deposition. Front Med (Lausanne) 2022; 9:879361. [PMID: 36186828 PMCID: PMC9521736 DOI: 10.3389/fmed.2022.879361] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundMultidrug resistant (MDR) Acinetobacter baumannii causes serious infections in intensive care units and is hard to be eradicated by antibiotics. Many A. baumannii isolates are identified as the mucoid type recently, but the biological characteristics of mucoid A. baumannii and their interactions with host cells remains unclear.MethodsThe mucoid phenotype, antimicrobial susceptibility, biofilm-forming ability, acid resistance ability, peroxide tolerance, and in vivo toxicity of clinical ICUs derived A. baumannii isolates were first investigated. Secondly, the phagocytic resistance and invasive capacity of A. baumannii isolates to macrophages (MH-S, RAW264.7) and epithelial cells (A549) were analyzed. Furthermore, the abundance of C3b (complement factor C3 degradation product) deposition on the surface of A. baumannii was investigated. Last, the relationship between C3b deposition and the abundance of capsule in A. baumannii isolates were analyzed.ResultsThese A. baumannii strains showed different mucoid phenotypes including hyper mucoid (HM), medium mucoid (MM), and low mucoid (LM). All tested strains were MDR with high tolerance to either acid or hydrogen peroxide exposure. Notably, these mucoid strains showed the increase of mortality in the Galleria mellonella infection models. Besides, the HM strain exhibited less biofilm abundance, higher molecular weight (MW) of capsule, and greater anti-phagocytic activity to macrophages than the LM strain. Together with the increased abundance of capsule, high expression of tuf gene (associated with the hydrolysis of C3b), the HM strain effectively inhibits C3b deposition on bacterial surface, resulting in the low-opsonization phenotype.ConclusionCapsular characteristics facilitate the anti-phagocytic activity in hyper mucoid A. baumannii through the reduction of C3b deposition. Mucoid A. baumannii exhibits high phagocytosis resistance to both macrophages and epithelial cells.
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Affiliation(s)
- Xiaoxia Gong
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Qian Zhao
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Yifan Wu
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Hongwei Zhou
- Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shuangyang Ding
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Kui Zhu
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- *Correspondence: Kui Zhu,
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Chaudhary N, Jayaraman A, Reinhardt C, Campbell JD, Bosmann M. A single-cell lung atlas of complement genes identifies the mesothelium and epithelium as prominent sources of extrahepatic complement proteins. Mucosal Immunol 2022; 15:927-939. [PMID: 35672453 PMCID: PMC9173662 DOI: 10.1038/s41385-022-00534-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/05/2022] [Accepted: 05/22/2022] [Indexed: 02/04/2023]
Abstract
To understand functional duality of the complement system in host defense and lung injury, a more comprehensive view of its localized production in the lung, and the impact of age on complement production are essential. Here, we explored the expression of complement genes through computational analysis of preexisting single cell RNA sequencing data from lung transcriptomes of healthy young (3 months) and old C57BL/6 mice (24 months), and humans. We characterized the distribution of 48 complement genes. Across 28 distinct immune and non-immune cell types in mice, mesothelial cells expressed the greatest number of complement genes (e.g., C1ra, C2, C3), and regulators (e.g., Serping1, Cfh). C5 was abundant in type II alveolar epithelial cells and C1q in interstitial lung macrophages. There were only moderate differences in gene expression between young and old mice. Among 57 human lung cell types, mesothelial cells showed abundant complement expression. A few differences in gene expression (e.g., FCN1, CFI, C6, C7) were also evident between mice and human lung cells. Our findings present a novel perspective on the expression patterns of complement genes in normal lungs. These findings highlight the potential functions of complement in tissue-specific homeostasis and immunity and may foster a mechanistic understanding of its role in lung health and disease.
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Affiliation(s)
- Neha Chaudhary
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Archana Jayaraman
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Christoph Reinhardt
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Joshua D Campbell
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA
| | - Markus Bosmann
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany.
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Wang A, Chen X, Li D, Yang L, Jiang J. Deubiquitylating Enzyme OTUB2 Promotes the Progress of Liver Cancer Cells by Stabilizing TRIM54. INT J PHARMACOL 2022. [DOI: 10.3923/ijp.2022.633.643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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9
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Nagre N, Nicholson G, Cong X, Lockett J, Pearson AC, Chan V, Kim WK, Vinod KY, Catravas JD. Activation of cannabinoid-2 receptor protects against Pseudomonas aeruginosa induced acute lung injury and inflammation. Respir Res 2022; 23:326. [PMID: 36463179 PMCID: PMC9719649 DOI: 10.1186/s12931-022-02253-w] [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: 02/24/2022] [Accepted: 11/16/2022] [Indexed: 12/07/2022] Open
Abstract
BACKGROUND Bacterial pneumonia is a major risk factor for acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). Pseudomonas aeruginosa (PA), an opportunistic pathogen with an increasing resistance acquired against multiple drugs, is one of the main causative agents of ALI and ARDS in diverse clinical settings. Given the anti-inflammatory role of the cannabinoid-2 receptor (CB2R), the effect of CB2R activation in the regulation of PA-induced ALI and inflammation was tested in a mouse model as an alternative to conventional antibiotic therapy. METHODS In order to activate CB2R, a selective synthetic agonist, JWH133, was administered intraperitoneally (i.p.) to C57BL/6J mice. Furthermore, SR144528 (a selective CB2R antagonist) was administered in combination with JWH133 to test the specificity of the CB2R-mediated effect. PA was administered intratracheally (i.t.) for induction of pneumonia in mice. At 24 h after PA exposure, lung mechanics were measured using the FlexiVent system. The total cell number, protein content, and neutrophil population in the bronchoalveolar lavage fluid (BALF) were determined. The bacterial load in the whole lung was also measured. Lung injury was evaluated by histological examination and PA-induced inflammation was assessed by measuring the levels of BALF cytokines and chemokines. Neutrophil activation (examined by immunofluorescence and immunoblot) and PA-induced inflammatory signaling (analyzed by immunoblot) were also studied. RESULTS CB2R activation by JWH133 was found to significantly reduce PA-induced ALI and the bacterial burden. CB2R activation also suppressed the PA-induced increase in immune cell infiltration, neutrophil population, and inflammatory cytokines. These effects were abrogated by a CB2R antagonist, SR144528, further confirming the specificity of the CB2R-mediated effects. CB2R-knock out (CB2RKO) mice had a significantly higher level of PA-induced inflammation as compared to that in WT mice. CB2R activation diminished the excess activation of neutrophils, whereas mice lacking CB2R had elevated neutrophil activation. Pharmacological activation of CB2R significantly reduced the PA-induced NF-κB and NLRP3 inflammasome activation, whereas CB2KO mice had elevated NLRP3 inflammasome. CONCLUSION Our findings indicate that CB2R activation ameliorates PA-induced lung injury and inflammation, thus paving the path for new therapeutic avenues against PA pneumonia.
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Affiliation(s)
- Nagaraja Nagre
- grid.255414.30000 0001 2182 3733Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, VA 23507 USA
| | - Gregory Nicholson
- grid.255414.30000 0001 2182 3733Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, VA 23507 USA
| | - Xiaofei Cong
- grid.255414.30000 0001 2182 3733Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, VA 23507 USA
| | - Janette Lockett
- grid.255414.30000 0001 2182 3733Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, VA 23507 USA
| | - Andrew C. Pearson
- grid.255414.30000 0001 2182 3733Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, VA 23507 USA
| | - Vincent Chan
- grid.255414.30000 0001 2182 3733Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, VA 23507 USA
| | - Woong-Ki Kim
- grid.255414.30000 0001 2182 3733Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA 23507 USA
| | - K. Yaragudri Vinod
- grid.250263.00000 0001 2189 4777Emotional Brain Institute, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962 USA ,grid.137628.90000 0004 1936 8753Department of Child and Adolescent Psychiatry, New York University Langone Health, New York, NY USA
| | - John D. Catravas
- grid.261368.80000 0001 2164 3177Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA 23508 USA ,grid.261368.80000 0001 2164 3177School of Medical Diagnostic and Translational Sciences, College of Health Sciences, Old Dominion University, Norfolk, VA 23508 USA
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Li Y, Wang C, Xi HM, Li WT, Liu YJ, Feng S, Chu YJ, Wang YH. Chorionic villus-derived mesenchymal stem cells induce E3 ligase TRIM72 expression and regulate cell behaviors through ubiquitination of p53 in trophoblasts. FASEB J 2021; 35:e22005. [PMID: 34788479 DOI: 10.1096/fj.202100801r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/23/2021] [Accepted: 10/06/2021] [Indexed: 12/20/2022]
Abstract
Preeclampsia is a significant contributor for maternal or fetal morbidity and mortality, which is characterized by reduced invasion capacity of trophoblasts and is regulated by extracellular matrix (ECM). It is still under investigation whether chorionic villus-derived mesenchymal stem cells (CVMSC) could affect the functionality of trophoblasts. In this study, CVMSC-derived exosomes were isolated; their effect on trophoblasts was investigated based on the CCK8 assay, migration assay, and apoptosis detection. And the underlying mechanism of this effect was investigated using mRNA sequencing, western blot, co-immunoprecipitation, luciferase report assay, and ubiquitination assay. The results show that CVMSC-derived exosomes promote migration and proliferation of trophoblasts, and also reduce cell apoptosis. mRNA sequencing confirmed that after treatment of CVMSC-derived exosomes, Tripartite Motif Containing 72 (TRIM72) expression was upregulated and Tumor Protein P53 (P53) expression was downregulated, both significantly in trophoblasts. Subsequent study confirms that TRM72 can directly interact with P53 and promote P53 ubiquitination and proteasomal degradation, reducing apoptosis rate and elevating proliferation and migration in trophoblasts. Our study confirms that CVMSC-derived exosomes promote trophoblast migration and proliferation by upregulating TRIM72 expression, and subsequently advance P53 ubiquitination and proteasomal degradation.
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Affiliation(s)
- Yan Li
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chen Wang
- Department of Operating Room, Qingdao Municipal Hospital, Qingdao, China
| | - Hong-Min Xi
- Department of Neonatology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wen-Ting Li
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ya-Jun Liu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shan Feng
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi-Jing Chu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi-Hao Wang
- Department of Pain Management, Qingdao Municipal Hospital, Qingdao, China
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11
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McElhanon KE, Young N, Hampton J, Paleo BJ, Kwiatkowski TA, Beck EX, Capati A, Jablonski K, Gurney T, Perez MAL, Aggarwal R, Oddis CV, Jarjour WN, Weisleder N. Autoantibodies targeting TRIM72 compromise membrane repair and contribute to inflammatory myopathy. J Clin Invest 2021; 130:4440-4455. [PMID: 32687067 DOI: 10.1172/jci131721] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 05/14/2020] [Indexed: 12/27/2022] Open
Abstract
Idiopathic inflammatory myopathies (IIM) involve chronic inflammation of skeletal muscle and subsequent muscle degeneration due to an uncontrolled autoimmune response; however, the mechanisms leading to pathogenesis are not well understood. A compromised sarcolemmal repair process could promote an aberrant exposure of intramuscular antigens with the subsequent initiation of an inflammatory response that contributes to IIM. Using an adoptive transfer mouse model of IIM, we show that sarcolemmal repair is significantly compromised in distal skeletal muscle in the absence of inflammation. We identified autoantibodies against TRIM72 (also known as MG53), a muscle-enriched membrane repair protein, in IIM patient sera and in our mouse model of IIM by ELISA. We found that patient sera with elevated levels of TRIM72 autoantibodies suppress sarcolemmal resealing in healthy skeletal muscle, and depletion of TRIM72 antibodies from these same serum samples rescues sarcolemmal repair capacity. Autoantibodies targeting TRIM72 lead to skeletal muscle fibers with compromised membrane barrier function, providing a continuous source of autoantigens to promote autoimmunity and further amplifying humoral responses. These findings reveal a potential pathogenic mechanism that acts as a feedback loop contributing to the progression of IIM.
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Affiliation(s)
- Kevin E McElhanon
- Dorothy M. Davis Heart and Lung Research Institute and Department of Physiology and Cell Biology, and
| | - Nicholas Young
- Division of Rheumatology and Immunology, Department of Internal Medicine, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Jeffrey Hampton
- Division of Rheumatology and Immunology, Department of Internal Medicine, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Brian J Paleo
- Dorothy M. Davis Heart and Lung Research Institute and Department of Physiology and Cell Biology, and
| | - Thomas A Kwiatkowski
- Dorothy M. Davis Heart and Lung Research Institute and Department of Physiology and Cell Biology, and
| | - Eric X Beck
- Dorothy M. Davis Heart and Lung Research Institute and Department of Physiology and Cell Biology, and
| | - Ana Capati
- Dorothy M. Davis Heart and Lung Research Institute and Department of Physiology and Cell Biology, and
| | - Kyle Jablonski
- Division of Rheumatology and Immunology, Department of Internal Medicine, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Travis Gurney
- Dorothy M. Davis Heart and Lung Research Institute and Department of Physiology and Cell Biology, and
| | - Miguel A Lopez Perez
- Dorothy M. Davis Heart and Lung Research Institute and Department of Physiology and Cell Biology, and
| | - Rohit Aggarwal
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Chester V Oddis
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Wael N Jarjour
- Division of Rheumatology and Immunology, Department of Internal Medicine, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Noah Weisleder
- Dorothy M. Davis Heart and Lung Research Institute and Department of Physiology and Cell Biology, and
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12
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Xia Y, Zhao J, Yang C. Identification of key genes and pathways for melanoma in the TRIM family. Cancer Med 2020; 9:8989-9005. [PMID: 33118318 PMCID: PMC7724299 DOI: 10.1002/cam4.3545] [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: 05/14/2020] [Revised: 08/27/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022] Open
Abstract
Certain members of the TRIM family have been shown to have abnormal expression and prognostic value in cancer. However, in the development and progression of melanoma, the role of different TRIM family members remains unknown. To address this issue, this study used the Oncomine, UCSC, Human Protein Atlas, DAVID, and GEPIA databases to study the role of TRIMs in the prognosis of melanoma. Differential expression of TRIM2, TRIM7, TRIM8, TRIM18 (MID1), TRIM19 (PML), TRIM27, and TRIM29 may play an important role in the development of melanoma. The expression TRIM7 and TRIM29 appeared to be helpful in the identification of primary tumors and metastases. Survival analysis suggested that the expression of TRIM27 significantly affected the overall survival and disease‐free survival of melanoma, and its expression was confirmed by qRT‐PCR. Our results indicated that the expression level of TRIM27 might be a prognostic marker of melanoma.
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Affiliation(s)
- YiJun Xia
- Department of Plastic and Reconstructive Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Jun Zhao
- Department of Dermatology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Chunjun Yang
- Department of Dermatology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
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13
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Hall BM, Gleiberman AS, Strom E, Krasnov PA, Frescas D, Vujcic S, Leontieva OV, Antoch MP, Kogan V, Koman IE, Zhu Y, Tchkonia T, Kirkland JL, Chernova OB, Gudkov AV. Immune checkpoint protein VSIG4 as a biomarker of aging in murine adipose tissue. Aging Cell 2020; 19:e13219. [PMID: 32856419 PMCID: PMC7576241 DOI: 10.1111/acel.13219] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 05/26/2020] [Accepted: 07/03/2020] [Indexed: 12/20/2022] Open
Abstract
Adipose tissue is recognized as a major source of systemic inflammation with age, driving age-related tissue dysfunction and pathogenesis. Macrophages (Mφ) are central to these changes yet adipose tissue Mφ (ATMs) from aged mice remain poorly characterized. To identify biomarkers underlying changes in aged adipose tissue, we performed an unbiased RNA-seq analysis of ATMs from young (8-week-old) and healthy aged (80-week-old) mice. One of the genes identified, V-set immunoglobulin-domain-containing 4 (VSIG4/CRIg), encodes a Mφ-associated complement receptor and B7 family-related immune checkpoint protein. Here, we demonstrate that Vsig4 expression is highly upregulated with age in perigonadal white adipose tissue (gWAT) in two mouse strains (inbred C57BL/6J and outbred NIH Swiss) independent of gender. The accumulation of VSIG4 was mainly attributed to a fourfold increase in the proportion of VSIG4+ ATMs (13%-52%). In a longitudinal study, VSIG4 expression in gWAT showed a strong correlation with age within a cohort of male and female mice and correlated strongly with physiological frailty index (PFI, a multi-parameter assessment of health) in male mice. Our results indicate that VSIG4 is a novel biomarker of aged murine ATMs. VSIG4 expression was also found to be elevated in other aging tissues (e.g., thymus) and was strongly induced in tumor-adjacent stroma in cases of spontaneous and xenograft lung cancer models. VSIG4 expression was recently associated with cancer and several inflammatory diseases with diagnostic and prognostic potential in both mice and humans. Further investigation is required to determine whether VSIG4-positive Mφ contribute to immunosenescence and/or systemic age-related deficits.
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Affiliation(s)
| | | | | | | | | | | | - Olga V. Leontieva
- Department of Pharmacology and TherapeuticsRoswell Park Comprehensive Cancer CenterBuffaloNYUSA
| | - Marina P. Antoch
- Department of Pharmacology and TherapeuticsRoswell Park Comprehensive Cancer CenterBuffaloNYUSA
| | - Valeria Kogan
- Institute for Translational ResearchAriel UniversityArielIsrael
| | - Igor E. Koman
- Institute for Translational ResearchAriel UniversityArielIsrael
| | - Yi Zhu
- Robert and Arlene Kogod Center on AgingMayo ClinicRochesterMNUSA
| | - Tamara Tchkonia
- Robert and Arlene Kogod Center on AgingMayo ClinicRochesterMNUSA
| | | | | | - Andrei V. Gudkov
- Everon Biosciences IncBuffaloNYUSA
- Department of Cell Stress BiologyRoswell Park Comprehensive Cancer CenterBuffaloNYUSA
- Genome Protection IncBuffaloNYUSA
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14
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Cong X, Nagre N, Herrera J, Pearson AC, Pepper I, Morehouse R, Ji HL, Jiang D, Hubmayr RD, Zhao X. TRIM72 promotes alveolar epithelial cell membrane repair and ameliorates lung fibrosis. Respir Res 2020; 21:132. [PMID: 32471489 PMCID: PMC7257505 DOI: 10.1186/s12931-020-01384-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/04/2020] [Indexed: 02/06/2023] Open
Abstract
Background Chronic tissue injury was shown to induce progressive scarring in fibrotic diseases such as idiopathic pulmonary fibrosis (IPF), while an array of repair/regeneration and stress responses come to equilibrium to determine the outcome of injury at the organ level. In the lung, type I alveolar epithelial (ATI) cells constitute the epithelial barrier, while type II alveolar epithelial (ATII) cells play a pivotal role in regenerating the injured distal lungs. It had been demonstrated that eukaryotic cells possess repair machinery that can quickly patch the damaged plasma membrane after injury, and our previous studies discovered the membrane-mending role of Tripartite motif containing 72 (TRIM72) that expresses in a limited number of tissues including the lung. Nevertheless, the role of alveolar epithelial cell (AEC) repair in the pathogenesis of IPF has not been examined yet. Method In this study, we tested the specific roles of TRIM72 in the repair of ATII cells and the development of lung fibrosis. The role of membrane repair was accessed by saponin assay on isolated primary ATII cells and rat ATII cell line. The anti-fibrotic potential of TRIM72 was tested with bleomycin-treated transgenic mice. Results We showed that TRIM72 was upregulated following various injuries and in human IPF lungs. However, TRIM72 expression in ATII cells of the IPF lungs had aberrant subcellular localization. In vitro studies showed that TRIM72 repairs membrane injury of immortalized and primary ATIIs, leading to inhibition of stress-induced p53 activation and reduction in cell apoptosis. In vivo studies demonstrated that TRIM72 protects the integrity of the alveolar epithelial layer and reduces lung fibrosis. Conclusion Our results suggest that TRIM72 protects injured lungs and ameliorates fibrosis through promoting post-injury repair of AECs.
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Affiliation(s)
- Xiaofei Cong
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia, USA
| | - Nagaraja Nagre
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia, USA.
| | - Jeremy Herrera
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Andrew C Pearson
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia, USA
| | - Ian Pepper
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia, USA
| | - Robell Morehouse
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia, USA
| | - Hong-Long Ji
- Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, TX, USA
| | - Dianhua Jiang
- Department of Medicine, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Rolf D Hubmayr
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - Xiaoli Zhao
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia, USA. .,National Institute of General Medical Sciences, Bethesda, MD, USA.
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15
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Yuan S, Wang Y, Luo H, Jiang Z, Qiao B, Jiang Y, Hu Y, Cheng Y, Chen X, Gong W, Huang Y, Zhao W, Luo D, Liu B, Su H, Zhou J, Song S. Serum soluble VSIG4 as a surrogate marker for the diagnosis of lymphoma-associated hemophagocytic lymphohistiocytosis. Br J Haematol 2020; 189:72-83. [PMID: 31960419 DOI: 10.1111/bjh.16299] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 09/25/2019] [Indexed: 12/21/2022]
Abstract
Lymphoma-associated haemophagocytic lymphohistiocytosis (L-HLH) is characterized by excessively activated macrophages and cytotoxic T lymphocytes, but few reliable markers for activated macrophages are available clinically. This study, designed to discover novel biomarkers for the diagnosis of lymphoma patients with L-HLH, was initiated between 2016 and 2018. Fifty-seven adult lymphoma patients were enrolled - 39 without HLH and 18 with HLH. The differential serum protein expression profile was first screened between lymphoma patients with and without L-HLH by a quantitative mass spectrometric approach. Soluble V-set and immunoglobulin domain-containing 4 (sVSIG4), specifically expressed by macrophages, was significantly upregulated in the L-HLH group. Subsequently, sVSIG4 concentration was confirmed by enzyme-linked immunosorbent assay to be significantly increased in lymphoma patients with L-HLH. When it was exploited for the diagnosis of lymphoma patients with L-HLH, the area under a receiver operating characteristic curve was 0·98 with an optimal cut-off point of 2195 pg/ml and the corresponding sensitivity and specificity were 94·44% and 94·87% respectively. In addition, the one-year overall survival was significantly worse in patients with a sVSIG4 concentration above 2195 pg/ml compared with those below 2195 pg/ml (5·3% vs. 72·2%, P < 0·0001). sVSIG4 may be a surrogate marker of activated macrophages for the diagnosis of lymphoma patients with L-HLH.
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Affiliation(s)
- Shunzong Yuan
- Department of Laboratory Medicine, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Yanqing Wang
- Department of Lymphoma, Head and Neck Cancer, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Hui Luo
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zheng Jiang
- Laboratory of Oncology, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Bing Qiao
- Department of Laboratory Medicine, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Yan Jiang
- Department of Lymphoma, Head and Neck Cancer, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Yaning Hu
- Department of Laboratory Medicine, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Yang Cheng
- Department of Laboratory Medicine, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Xilin Chen
- Department of Lymphoma, Head and Neck Cancer, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Weihua Gong
- Department of Surgery, Second Affiliated Hospital of School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yong Huang
- Department of Pathology, The PLA 81st Group Army Hospital, Zhangjiakou, China
| | - Weipeng Zhao
- Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Deyan Luo
- Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Bing Liu
- Laboratory of Oncology, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Hang Su
- Department of Lymphoma, Head and Neck Cancer, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
| | - Jianfeng Zhou
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shiping Song
- Department of Laboratory Medicine, The Fifth Medical Center, Chinese PLA General Hospital (Former 307th hospital of the PLA), Beijing, China
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16
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Hardin CC. TRIMming Ventilator-induced Lung Injury by Enhancing Cell Membrane Repair. Am J Respir Cell Mol Biol 2019; 59:533-534. [PMID: 30040452 DOI: 10.1165/rcmb.2018-0202ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- C Corey Hardin
- 1 Division of Pulmonary and Critical Care Medicine Massachusetts General Hospital Boston, Massachusetts
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17
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Nagre N, Cong X, Pearson AC, Zhao X. Alveolar Macrophage Phagocytosis and Bacteria Clearance in Mice. J Vis Exp 2019. [PMID: 30882784 DOI: 10.3791/59088] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Alveolar macrophages (AMs) guard the alveolar space of the lung. Phagocytosis by AMs plays a critical role in the defense against invading pathogens, the removal of dead cells or foreign particles, and in the resolution of inflammatory responses and tissue remodeling, processes that are mediated by various surface receptors of the AMs. Here, we report methods for the analysis of the phagocytic function of AMs using in vitro and in vivo assays and experimental strategies to differentiate between the pattern recognition receptor-, complement receptor-, and Fc gamma receptor-mediated phagocytosis. Finally, we discuss a method to establish and characterize a P. aeruginosa pneumonia model in mice to assess bacterial clearance in vivo. These assays represent the most common methods to evaluate AM functions and can also be used to study macrophage function and bacterial clearance in other organs.
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Affiliation(s)
- Nagaraja Nagre
- Department of Physiological Sciences, Eastern Virginia Medical School;
| | - Xiaofei Cong
- Department of Physiological Sciences, Eastern Virginia Medical School
| | - Andrew C Pearson
- Department of Physiological Sciences, Eastern Virginia Medical School
| | - Xiaoli Zhao
- Department of Physiological Sciences, Eastern Virginia Medical School;
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18
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Nagre N, Cong X, Ji HL, Schreiber JM, Fu H, Pepper I, Warren S, Sill JM, Hubmayr RD, Zhao X. Inhaled TRIM72 Protein Protects Ventilation Injury to the Lung through Injury-guided Cell Repair. Am J Respir Cell Mol Biol 2018; 59:635-647. [PMID: 29958015 PMCID: PMC6236686 DOI: 10.1165/rcmb.2017-0364oc] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 06/28/2018] [Indexed: 12/27/2022] Open
Abstract
Studies showed that TRIM72 is essential for repair of alveolar cell membrane disruptions, and exogenous recombinant human TRIM72 protein (rhT72) demonstrated tissue-mending properties in animal models of tissue injury. Here we examine the mechanisms of rhT72-mediated lung cell protection in vitro and test the efficacy of inhaled rhT72 in reducing tissue pathology in a mouse model of ventilator-induced lung injury. In vitro lung cell injury was induced by glass beads and stretching. Ventilator-induced lung injury was modeled by injurious ventilation at 30 ml/kg tidal volume. Affinity-purified rhT72 or control proteins were added into culture medium or applied through nebulization. Cellular uptake and in vivo distribution of rhT72 were detected by imaging and immunostaining. Exogenous rhT72 maintains membrane integrity of alveolar epithelial cells subjected to glass bead injury in a dose-dependent manner. Inhaled rhT72 decreases the number of fatally injured alveolar cells, and ameliorates tissue-damaging indicators and cell injury markers after injurious ventilation. Using in vitro stretching assays, we reveal that rhT72 improves both cellular resilience to membrane wounding and membrane repair after injury. Image analysis detected rhT72 uptake by rat alveolar epithelial cells, which can be inhibited by a cholesterol-disrupting agent. In addition, inhaled rhT72 distributes to the distal lungs, where it colocalizes with phosphatidylserine detection on nonpermeabilized lung slices to label wounded cells. In conclusion, our study showed that inhaled rhT72 accumulates in injured lungs and protects lung tissue from ventilator injury, the mechanisms of which include improving cell resilience to membrane wounding, localizing to injured membrane, and augmenting membrane repair.
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Affiliation(s)
- Nagaraja Nagre
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - Xiaofei Cong
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - Hong-Long Ji
- Texas Lung Injury Institute, the University of Texas Health Science Center at Tyler, Tyler, Texas
| | - John M. Schreiber
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - Hongyun Fu
- Division of Community Health and Research, Pediatrics Department and
| | - Ian Pepper
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - Seth Warren
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - Joshua M. Sill
- Division of Pulmonary and Critical Care, Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, Virginia; and
| | - Rolf D. Hubmayr
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota
| | - Xiaoli Zhao
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
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