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Wu J, Barkat MQ, Su J, Wu F, Tan D, Shen T, He Q, Qu M, Lu M, Cai J, Wu X, Xu C. Inhibition of non-muscular myosin light chain kinase accelerates the clearance of inflammatory cells by promoting the lysosome-mediated cell death. Biomed Pharmacother 2024; 170:115986. [PMID: 38056232 DOI: 10.1016/j.biopha.2023.115986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/01/2023] [Accepted: 12/02/2023] [Indexed: 12/08/2023] Open
Abstract
Infections like COVID-19 are the primary cause of death around the world because they can cause acute lung injury (ALI), acute respiratory distress syndrome (ARDS), and sepsis. Inflammatory cells serve as crucial protective barriers in these diseases. However, excessive accumulation of inflammatory cells is also one of the major causes of organ damage. The non-muscular myosin light chain kinase (nmMLCK) plays crucial of cytoskeletal components involved in endothelial cell-matrix and cell-cell adhesion, integrity, and permeability. Our previous investigations found that ML-7, a specific inhibitor of MLCK, promoted neutrophil apoptosis through various signaling pathways. In this study, we found that knockout of MLCK significantly promote apoptosis of neutrophils and macrophages in the BALF of the LPS-induced ALI, meanwhile it had no effect on the apoptosis of neutrophils in the circulatory system. RNA-sequencing revealed that the effect of MLCK knockout in inducing apoptosis of inflammatory cells was mediated through lysosomes. Administering ML-7 into the lungs significantly promoted neutrophil apoptosis, accelerating their clearance. In the LPS- or CLP-induced sepsis models, ML-7 administration significantly improves the apoptosis of inflammatory cells, especially neutrophils, at the infection site but had no impact on neutrophils in the circulatory system. ML-7 also significantly improved the survival rate of mice with LPS- or CLP-induced sepsis. Taken together, we found that MLCK plays a crucial role in the survival of inflammatory cells at the infection site. Inhibiting MLCK significantly induces apoptosis of inflammatory cells at the infection site, promoting inflammation resolution, with no impact of the circulatory system.
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Affiliation(s)
- Junsong Wu
- Department of Orthopaedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 310003, China
| | - Muhammad Qasim Barkat
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jiakun Su
- Technology Center, China Tobacco Jiangxi Industrial Co. Ltd., Nanchang 330096, China
| | - Fugen Wu
- Department of Pediatrics, the First People's Hospital of Wenling City, Wenling 317500, China
| | - Dan Tan
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Tingyu Shen
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Qiangqiang He
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Meiyu Qu
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Meiping Lu
- National Clinical Research Center for Child Health, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Jibao Cai
- Technology Center, China Tobacco Jiangxi Industrial Co. Ltd., Nanchang 330096, China
| | - Ximei Wu
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China.
| | - Chengyun Xu
- Department of Pharmacology, School of Medcine, Hangzhou City University, 310015, China.
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Chong CF, Hasnizan NYU, Ahmad Mokhtar AM. Navigating the landscape of Rho GTPase signalling system in autoimmunity: A bibliometric analysis spanning over three decades (1990 to 2023). Cell Signal 2023; 111:110855. [PMID: 37598919 DOI: 10.1016/j.cellsig.2023.110855] [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: 07/15/2023] [Accepted: 08/16/2023] [Indexed: 08/22/2023]
Abstract
Ras-homologous (Rho) guanosine triphosphatases (GTPases) are considered a central player in regulating various biological processes, extending to immune regulation. Perturbations in Rho GTPase signalling have been implicated in immune-related dysregulation, contributing to the development of autoimmunity. This study presents a scientometric analysis exploring the interlink between the Rho GTPase signalling system and autoimmunity, while also delving into the trends of past studies. A total of 967 relevant publications from 1990 to 2023 were retrieved from the Web of Science Core Collection database after throrough manual filtering of irrelevant articles. The findings show an upward trajectory in publications related to this field since 2006. Over the past three decades, the United States of America (41.68%) emerged as the primary contributor in advancing our understanding of the association between the Rho GTPase signalling system and autoimmunity. Research in autoimmunity has mainly centered around therapeutic interventions, with an emphasis on studying leukocyte (macrophage) and endothelial remodelling. Interestingly, within the domains of multiple sclerosis and rheumatoid arthritis, the current focus has been directed towards comprehending the role of RhoA, Rac1, and Cdc42. Notably, certain subfamilies of Rho (such as RhoB and RhoC), Rac (including Rac2 and RhoG), Cdc42 (specifically RhoJ), and other atypical Rho GTPases (like RhoE and RhoH) consistently demonstrating compelling link with autoimmunity, but still warrants emphasis in the future study. Hence, strategic manipulation of the Rho signalling system holds immense promise as a pivotal approach to addressing the global challenge of autoimmunity.
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Affiliation(s)
- Chien Fung Chong
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800 Gelugor, Penang, Malaysia.
| | - Nik Yasmin Umaira Hasnizan
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800 Gelugor, Penang, Malaysia.
| | - Ana Masara Ahmad Mokhtar
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800 Gelugor, Penang, Malaysia.
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3
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Arif N, Zinnhardt M, Nyamay’Antu A, Teber D, Brückner R, Schaefer K, Li Y, Trappmann B, Grashoff C, Vestweber D. PECAM-1 supports leukocyte diapedesis by tension-dependent dephosphorylation of VE-cadherin. EMBO J 2021; 40:e106113. [PMID: 33604918 PMCID: PMC8090850 DOI: 10.15252/embj.2020106113] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 01/15/2021] [Accepted: 01/27/2021] [Indexed: 01/21/2023] Open
Abstract
Leukocyte extravasation is an essential step during the immune response and requires the destabilization of endothelial junctions. We have shown previously that this process depends in vivo on the dephosphorylation of VE-cadherin-Y731. Here, we reveal the underlying mechanism. Leukocyte-induced stimulation of PECAM-1 triggers dissociation of the phosphatase SHP2 which then directly targets VE-cadherin-Y731. The binding site of PECAM-1 for SHP2 is needed for VE-cadherin dephosphorylation and subsequent endocytosis. Importantly, the contribution of PECAM-1 to leukocyte diapedesis in vitro and in vivo was strictly dependent on the presence of Y731 of VE-cadherin. In addition to SHP2, dephosphorylation of Y731 required Ca2+ -signaling, non-muscle myosin II activation, and endothelial cell tension. Since we found that β-catenin/plakoglobin mask VE-cadherin-Y731 and leukocyte docking to endothelial cells exert force on the VE-cadherin-catenin complex, we propose that leukocytes destabilize junctions by PECAM-1-SHP2-triggered dephosphorylation of VE-cadherin-Y731 which becomes accessible by actomyosin-mediated mechanical force exerted on the VE-cadherin-catenin complex.
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Affiliation(s)
- Nida Arif
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | - Maren Zinnhardt
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | | | - Denise Teber
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | - Randy Brückner
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | | | - Yu‐Tung Li
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | | | - Carsten Grashoff
- Institute for Molecular Cell BiologyUniversity of MünsterMünsterGermany
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4
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Richardson IM, Calo CJ, Hind LE. Microphysiological Systems for Studying Cellular Crosstalk During the Neutrophil Response to Infection. Front Immunol 2021; 12:661537. [PMID: 33986752 PMCID: PMC8111168 DOI: 10.3389/fimmu.2021.661537] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/09/2021] [Indexed: 12/13/2022] Open
Abstract
Neutrophils are the primary responders to infection, rapidly migrating to sites of inflammation and clearing pathogens through a variety of antimicrobial functions. This response is controlled by a complex network of signals produced by vascular cells, tissue resident cells, other immune cells, and the pathogen itself. Despite significant efforts to understand how these signals are integrated into the neutrophil response, we still do not have a complete picture of the mechanisms regulating this process. This is in part due to the inherent disadvantages of the most-used experimental systems: in vitro systems lack the complexity of the tissue microenvironment and animal models do not accurately capture the human immune response. Advanced microfluidic devices incorporating relevant tissue architectures, cell-cell interactions, and live pathogen sources have been developed to overcome these challenges. In this review, we will discuss the in vitro models currently being used to study the neutrophil response to infection, specifically in the context of cell-cell interactions, and provide an overview of their findings. We will also provide recommendations for the future direction of the field and what important aspects of the infectious microenvironment are missing from the current models.
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Affiliation(s)
| | | | - Laurel E. Hind
- Department of Chemical and Biological Engineering, University of Colorado – Boulder, Boulder, CO, United States
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Zhang Y, Saradna A, Ratan R, Ke X, Tu W, Do DC, Hu C, Gao P. RhoA/Rho-kinases in asthma: from pathogenesis to therapeutic targets. Clin Transl Immunology 2020; 9:e01134. [PMID: 32355562 PMCID: PMC7190398 DOI: 10.1002/cti2.1134] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022] Open
Abstract
Asthma is a chronic and heterogeneous disease characterised by airway inflammation and intermittent airway narrowing. The key obstacle in the prevention and treatment of asthma has been our incomplete understanding of its aetiology and biological mechanisms. The ras homolog family member A (RhoA) of the Rho family GTPases has been considered to be one of the most promising and novel therapeutic targets for asthma. It is well known that RhoA/Rho‐kinases play an important role in the pathophysiology of asthma, including airway smooth muscle contraction, airway hyper‐responsiveness, β‐adrenergic desensitisation and airway remodelling. However, recent advances have suggested novel roles for RhoA in regulating allergic airway inflammation. Specifically, RhoA has been shown to regulate allergic airway inflammation through controlling Th2 or Th17 cell differentiation and to regulate airway remodelling through regulating mesenchymal stem cell (MSC) differentiation. In this review, we evaluate the literature regarding the recent advances in the activation of RhoA/Rho‐kinase, cytokine and epigenetic regulation of RhoA/Rho‐kinase, and the role of RhoA/Rho‐kinase in regulating major features of asthma, such as airway hyper‐responsiveness, remodelling and inflammation. We also discuss the importance of the newly identified role of RhoA/Rho‐kinase signalling in MSC differentiation and bronchial epithelial barrier dysfunction. These findings indicate the functional significance of the RhoA/Rho‐kinase pathway in the pathophysiology of asthma and suggest that RhoA/Rho‐kinase signalling may be a promising therapeutic target for the treatment of asthma.
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Affiliation(s)
- Yan Zhang
- Division of Allergy and Clinical Immunology Johns Hopkins University School of Medicine Baltimore MD USA.,Department of Respiratory Medicine Xiangya Hospital Central South University Changsha China
| | - Arjun Saradna
- Division of Allergy and Clinical Immunology Johns Hopkins University School of Medicine Baltimore MD USA.,Division of Pulmonary Critical Care and Sleep Medicine State University of New York at Buffalo Buffalo NY USA
| | - Rhea Ratan
- Division of Allergy and Clinical Immunology Johns Hopkins University School of Medicine Baltimore MD USA
| | - Xia Ke
- Division of Allergy and Clinical Immunology Johns Hopkins University School of Medicine Baltimore MD USA.,Department of Otorhinolaryngology First Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Wei Tu
- Division of Allergy and Clinical Immunology Johns Hopkins University School of Medicine Baltimore MD USA.,Department of Respirology and Allergy Third Affiliated Hospital of Shenzhen University Shenzhen China
| | - Danh C Do
- Division of Allergy and Clinical Immunology Johns Hopkins University School of Medicine Baltimore MD USA
| | - Chengping Hu
- Department of Respiratory Medicine Xiangya Hospital Central South University Changsha China
| | - Peisong Gao
- Division of Allergy and Clinical Immunology Johns Hopkins University School of Medicine Baltimore MD USA
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6
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Salvermoser M, Begandt D, Alon R, Walzog B. Nuclear Deformation During Neutrophil Migration at Sites of Inflammation. Front Immunol 2018; 9:2680. [PMID: 30505310 PMCID: PMC6250837 DOI: 10.3389/fimmu.2018.02680] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 10/30/2018] [Indexed: 12/22/2022] Open
Abstract
Cell migration is indispensable for various biological processes including angiogenesis, wound healing, and immunity. In general, there are two different migration modes described, the mesenchymal migration mode and the amoeboid migration mode. Neutrophils rapidly migrate toward the sites of injury, infection, and inflammation using the amoeboid migration mode which is characterized by cell polarization and a high migration velocity. During site-directed trafficking of neutrophils from the blood stream into the inflamed tissue, neutrophils must first withstand shear stress while migrating on the 2-dimensional endothelial surface. Subsequently, they have to cross different physical barriers during the extravasation process including the squeezing through the compact endothelial monolayer that comprises the blood vessel, the underlining basement membrane and then the 3-dimensional meshwork of extracellular matrix (ECM) proteins in the tissue. Therefore, neutrophils have to rapidly switch between distinct migration modes such as intraluminal crawling, transmigration, and interstitial migration to pass these different confinements and mechanical barriers. The nucleus is the largest and stiffest organelle in every cell and is therefore the key cellular element involved in cellular migration through variable confinements. This review highlights the importance of nuclear deformation during neutrophil crossing of such confinements, with a focus on transendothelial migration and interstitial migration. We discuss the key molecular components involved in the nuclear shape changes that underlie neutrophil motility and squeezing through cellular and ECM barriers. Understanding the precise molecular mechanisms that orchestrate these distinct neutrophil migration modes introduces an opportunity to develop new therapeutic concepts for controlling pathological neutrophil-driven inflammation.
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Affiliation(s)
- Melanie Salvermoser
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Planegg-Martinsried, Germany
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Planegg-Martinsried, Germany
| | - Daniela Begandt
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Planegg-Martinsried, Germany
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Planegg-Martinsried, Germany
| | - Ronen Alon
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
| | - Barbara Walzog
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Planegg-Martinsried, Germany
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Planegg-Martinsried, Germany
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