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Zhang ZS, Liu YY, He SS, Bao DQ, Wang HC, Zhang J, Peng XY, Zang JT, Zhu Y, Wu Y, Li QH, Li T, Liu LM. Pericytes protect rats and mice from sepsis-induced injuries by maintaining vascular reactivity and barrier function: implication of miRNAs and microvesicles. Mil Med Res 2023; 10:13. [PMID: 36907884 PMCID: PMC10010010 DOI: 10.1186/s40779-023-00442-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 01/31/2023] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Vascular hyporeactivity and leakage are key pathophysiologic features that produce multi-organ damage upon sepsis. We hypothesized that pericytes, a group of pluripotent cells that maintain vascular integrity and tension, are protective against sepsis via regulating vascular reactivity and permeability. METHODS We conducted a series of in vivo experiments using wild-type (WT), platelet-derived growth factor receptor beta (PDGFR-β)-Cre + mT/mG transgenic mice and Tie2-Cre + Cx43flox/flox mice to examine the relative contribution of pericytes in sepsis, either induced by cecal ligation and puncture (CLP) or lipopolysaccharide (LPS) challenge. In a separate set of experiments with Sprague-Dawley (SD) rats, pericytes were depleted using CP-673451, a selective PDGFR-β inhibitor, at a dosage of 40 mg/(kg·d) for 7 consecutive days. Cultured pericytes, vascular endothelial cells (VECs) and vascular smooth muscle cells (VSMCs) were used for mechanistic investigations. The effects of pericytes and pericyte-derived microvesicles (PCMVs) and candidate miRNAs on vascular reactivity and barrier function were also examined. RESULTS CLP and LPS induced severe injury/loss of pericytes, vascular hyporeactivity and leakage (P < 0.05). Transplantation with exogenous pericytes protected vascular reactivity and barrier function via microvessel colonization (P < 0.05). Cx43 knockout in either pericytes or VECs reduced pericyte colonization in microvessels (P < 0.05). Additionally, PCMVs transferred miR-145 and miR-132 to VSMCs and VECs, respectively, exerting a protective effect on vascular reactivity and barrier function after sepsis (P < 0.05). miR-145 primarily improved the contractile response of VSMCs by activating the sphingosine kinase 2 (Sphk2)/sphingosine-1-phosphate receptor (S1PR)1/phosphorylation of myosin light chain 20 pathway, whereas miR-132 effectively improved the barrier function of VECs by activating the Sphk2/S1PR2/zonula occludens-1 and vascular endothelial-cadherin pathways. CONCLUSIONS Pericytes are protective against sepsis through regulating vascular reactivity and barrier function. Possible mechanisms include both direct colonization of microvasculature and secretion of PCMVs.
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Affiliation(s)
- Zi-Sen Zhang
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Yi-Yan Liu
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Shuang-Shuang He
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Dai-Qin Bao
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Hong-Chen Wang
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Jie Zhang
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Xiao-Yong Peng
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Jia-Tao Zang
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Yu Zhu
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Yue Wu
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Qing-Hui Li
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Tao Li
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
| | - Liang-Ming Liu
- grid.410570.70000 0004 1760 6682State Key Laboratory of Trauma, Burns and Combined Injury, Department of Shock and Transfusion, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, 400042 China
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Seki A, Ishikawa T, Daumy X, Mishima H, Barc J, Sasaki R, Nishii K, Saito K, Urano M, Ohno S, Otsuki S, Kimoto H, Baruteau AE, Thollet A, Fouchard S, Bonnaud S, Parent P, Shibata Y, Perrin JP, Le Marec H, Hagiwara N, Mercier S, Horie M, Probst V, Yoshiura KI, Redon R, Schott JJ, Makita N. Progressive Atrial Conduction Defects Associated With Bone Malformation Caused by a Connexin-45 Mutation. J Am Coll Cardiol 2017; 70:358-370. [PMID: 28705318 DOI: 10.1016/j.jacc.2017.05.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 04/29/2017] [Accepted: 05/09/2017] [Indexed: 02/09/2023]
Abstract
BACKGROUND Inherited cardiac conduction disease is a rare bradyarrhythmia associated with mutations in various genes that affect action potential propagation. It is often characterized by isolated conduction disturbance of the His-Purkinje system, but it is rarely described as a syndromic form. OBJECTIVES The authors sought to identify the genetic defect in families with a novel bradyarrhythmia syndrome associated with bone malformation. METHODS The authors genetically screened 15 European cases with genotype-negative de novo atrioventricular (AV) block and their parents by trio whole-exome sequencing, plus 31 Japanese cases with genotype-negative familial AV block or sick sinus syndrome by targeted exon sequencing of 457 susceptibility genes. Functional consequences of the mutation were evaluated using an in vitro cell expression system and in vivo knockout mice. RESULTS The authors identified a connexin-45 (Cx45) mutation (p.R75H) in 2 unrelated families (a de novo French case and a 3-generation Japanese family) who presented with progressive AV block, which resulted in atrial standstill without ventricular conduction abnormalities. Affected individuals shared a common extracardiac phenotype: a brachyfacial pattern, finger deformity, and dental dysplasia. Mutant Cx45 expressed in Neuro-2a cells showed normal hemichannel assembly and plaque formation. However, Lucifer yellow dye transfer and gap junction conductance between cell pairs were severely impaired, which suggested that mutant Cx45 impedes gap junction communication in a dominant-negative manner. Tamoxifen-induced, cardiac-specific Cx45 knockout mice showed sinus node dysfunction and atrial arrhythmia, recapitulating the intra-atrial disturbance. CONCLUSIONS Altogether, the authors showed that Cx45 mutant p.R75H is responsible for a novel disease entity of progressive atrial conduction system defects associated with craniofacial and dentodigital malformation.
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Affiliation(s)
- Akiko Seki
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan; Support Center for Women Health Care Professionals and Researchers, Tokyo Women's Medical University, Tokyo, Japan
| | - Taisuke Ishikawa
- Department of Molecular Physiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Xavier Daumy
- INSERM, CNRS, UNIV Nantes, L'Institut du Thorax, Nantes, France
| | - Hiroyuki Mishima
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Julien Barc
- INSERM, CNRS, UNIV Nantes, L'Institut du Thorax, Nantes, France
| | - Ryo Sasaki
- Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kiyomasa Nishii
- Department of Anatomy and Neurobiology, National Defense Medical College, Tokorozawa, Japan
| | - Kayoko Saito
- Institute of Medical Genetics, Tokyo Women's Medical University, Tokyo, Japan
| | - Mari Urano
- Institute of Medical Genetics, Tokyo Women's Medical University, Tokyo, Japan
| | - Seiko Ohno
- Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Saki Otsuki
- Department of Molecular Physiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hiroki Kimoto
- Department of Molecular Physiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Alban-Elouen Baruteau
- INSERM, CNRS, UNIV Nantes, L'Institut du Thorax, Nantes, France; Department of Congenital Cardiology, Evelina London Children's Hospital, Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
| | - Aurelie Thollet
- CHU Nantes, L'institut du thorax, Service de Cardiologie, Nantes, France
| | - Swanny Fouchard
- CHU Nantes, L'institut du thorax, Service de Cardiologie, Nantes, France
| | | | | | | | - Jean-Philippe Perrin
- CHU Nantes, Service de Chirurgie Maxillo-Faciale et Stomatologie, Nantes, France
| | - Hervé Le Marec
- INSERM, CNRS, UNIV Nantes, L'Institut du Thorax, Nantes, France; CHU Nantes, L'institut du thorax, Service de Cardiologie, Nantes, France
| | - Nobuhisa Hagiwara
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Sandra Mercier
- CHU Nantes, Service de Génétique Médicale, Nantes, France
| | - Minoru Horie
- Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Vincent Probst
- INSERM, CNRS, UNIV Nantes, L'Institut du Thorax, Nantes, France; CHU Nantes, L'institut du thorax, Service de Cardiologie, Nantes, France
| | - Koh-Ichiro Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Richard Redon
- INSERM, CNRS, UNIV Nantes, L'Institut du Thorax, Nantes, France; CHU Nantes, L'institut du thorax, Service de Cardiologie, Nantes, France
| | - Jean-Jacques Schott
- INSERM, CNRS, UNIV Nantes, L'Institut du Thorax, Nantes, France; CHU Nantes, L'institut du thorax, Service de Cardiologie, Nantes, France.
| | - Naomasa Makita
- Department of Molecular Physiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
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