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Kawanishi K. Diverse properties of the mesothelial cells in health and disease. Pleura Peritoneum 2016; 1:79-89. [PMID: 30911611 DOI: 10.1515/pp-2016-0009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/19/2016] [Indexed: 12/17/2022] Open
Abstract
Mesothelial cells (MCs) form the superficial anatomic layer of serosal membranes, including pleura, pericardium, peritoneum, and the tunica of the reproductive organs. MCs produce a protective, non-adhesive barrier against physical and biochemical damages. MCs express a wide range of phenotypic markers, including vimentin and cytokeratins. MCs play key roles in fluid transport and inflammation, as reflected by the modulation of biochemical markers such as transporters, adhesion molecules, cytokines, growth factors, reactive oxygen species and their scavengers. MCs synthesize extracellular matrix related molecules, and the surface of MC microvilli secretes a highly hydrophilic protective barrier, "glycocalyx", consisting mainly of glycosaminoglycans. MCs maintain a balance between procoagulant and fibrinolytic activation by producing a whole range of regulators, can synthetize fibrin and therefore form adhesions. Synthesis and recognition of hyaluronan and sialic acids might be a new insight to explain immunoactive and immunoregulatory properties of MCs. Epithelial to mesenchymal transition of MCs may involve serosal repair and remodeling. MCs might also play a role in the development and remodeling of visceral adipose tissue. Taken together, MCs play important roles in health and disease in serosal cavities of the body. The mesothelium is not just a membrane and should be considered as an organ.
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Mutsaers SE, Birnie K, Lansley S, Herrick SE, Lim CB, Prêle CM. Mesothelial cells in tissue repair and fibrosis. Front Pharmacol 2015; 6:113. [PMID: 26106328 PMCID: PMC4460327 DOI: 10.3389/fphar.2015.00113] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 05/12/2015] [Indexed: 12/21/2022] Open
Abstract
Mesothelial cells are fundamental to the maintenance of serosal integrity and homeostasis and play a critical role in normal serosal repair following injury. However, when normal repair mechanisms breakdown, mesothelial cells take on a profibrotic role, secreting inflammatory, and profibrotic mediators, differentiating and migrating into the injured tissues where they contribute to fibrogenesis. The development of new molecular and cell tracking techniques has made it possible to examine the origin of fibrotic cells within damaged tissues and to elucidate the roles they play in inflammation and fibrosis. In addition to secreting proinflammatory mediators and contributing to both coagulation and fibrinolysis, mesothelial cells undergo mesothelial-to-mesenchymal transition, a process analogous to epithelial-to-mesenchymal transition, and become fibrogenic cells. Fibrogenic mesothelial cells have now been identified in tissues where they have not previously been thought to occur, such as within the parenchyma of the fibrotic lung. These findings show a direct role for mesothelial cells in fibrogenesis and open therapeutic strategies to prevent or reverse the fibrotic process.
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Affiliation(s)
- Steven E Mutsaers
- Centre for Cell Therapy and Regenerative Medicine, School of Medicine and Pharmacology, University of Western Australia and Harry Perkins Institute of Medical Research , Nedlands, WA, Australia ; Institute for Respiratory Health, Centre for Asthma, Allergy and Respiratory Research, School of Medicine and Pharmacology, University of Western Australia , Nedlands, WA, Australia
| | - Kimberly Birnie
- Institute for Respiratory Health, Centre for Asthma, Allergy and Respiratory Research, School of Medicine and Pharmacology, University of Western Australia , Nedlands, WA, Australia
| | - Sally Lansley
- Institute for Respiratory Health, Centre for Asthma, Allergy and Respiratory Research, School of Medicine and Pharmacology, University of Western Australia , Nedlands, WA, Australia
| | - Sarah E Herrick
- Institute of Inflammation and Repair, Faculty of Medical and Human Sciences and Manchester Academic Health Science Centre, University of Manchester , Manchester, UK
| | - Chuan-Bian Lim
- Centre for Cell Therapy and Regenerative Medicine, School of Medicine and Pharmacology, University of Western Australia and Harry Perkins Institute of Medical Research , Nedlands, WA, Australia ; Institute for Respiratory Health, Centre for Asthma, Allergy and Respiratory Research, School of Medicine and Pharmacology, University of Western Australia , Nedlands, WA, Australia
| | - Cecilia M Prêle
- Centre for Cell Therapy and Regenerative Medicine, School of Medicine and Pharmacology, University of Western Australia and Harry Perkins Institute of Medical Research , Nedlands, WA, Australia ; Institute for Respiratory Health, Centre for Asthma, Allergy and Respiratory Research, School of Medicine and Pharmacology, University of Western Australia , Nedlands, WA, Australia
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Wang D, Liu J, He S, Wang C, Chen Y, Yang L, Liu F, Ren Y, Tian H, Yang G, Liao G, Li L, Shi M, Yuan Y, Zhao J, Cheng J, Lu Y. Assessment of early renal damage in diabetic rhesus monkeys. Endocrine 2014; 47:783-92. [PMID: 24619287 DOI: 10.1007/s12020-014-0211-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 02/09/2014] [Indexed: 02/06/2023]
Abstract
The objectives of the study were to improve the model system of diabetic nephropathy in nonhuman primates and assess the early renal damage. Diabetes was induced in monkeys by streptozotocin, and the animals were administered exogenous insulin to control blood glucose (BG). Animals were divided into four groups, including the normal group (N = 3), group A (streptozotocin diabetic model with control of BG < 10 mmol/L, N = 3), group B (streptozotocin diabetic model with control of BG between 15 and 20 mmol/L, N = 4), and group C (streptozotocin diabetic model with control of BG between 15 and 20 mmol/L and high-sodium and high-fat diet, N = 4). The following parameters were evaluated: (1) blood biochemistry and routine urinalysis, (2) color Doppler ultrasound, (3) angiography, (4) renal biopsy, and (5) renal fibrosis-related gene expression levels. Animals in group C developed progressive histologic changes with typical diabetic nephropathy resembling diabetic nephropathy in human patients and exhibited accelerated development of diabetic nephropathy compared with other nonhuman primate models. Significant changes in the expression of the Smad2/3 gene and eNOS in renal tissue were also observed in the early stage of diabetic nephropathy. In conclusion, our model is an excellent model of diabetic nephropathy for understanding the pathogenesis of diabetic nephropathy.
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Affiliation(s)
- Dan Wang
- Key Lab of Transplant Engineering and Immunology, Ministry of Health; Regenerative Medicine Research Center, West China Hospital, Sichuan University, No.1 Keyuan 4th Road, Gao Peng Ave, Chengdu, 610041, Sichuan, People's Republic of China
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Peritoneal fibrosis and the putative role of decorin. Int J Organ Transplant Med 2013. [DOI: 10.1016/j.hkjn.2013.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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