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Wang W, Wu S, Wang AY, Wu T, Luo H, Zhao JW, Chen J, Li Y, Ding H. Thrombomodulin activation driven by LXR agonist attenuates renal injury in diabetic nephropathy. Front Med (Lausanne) 2023; 9:916620. [PMID: 36698821 PMCID: PMC9870310 DOI: 10.3389/fmed.2022.916620] [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: 04/09/2022] [Accepted: 08/15/2022] [Indexed: 01/11/2023] Open
Abstract
Objective Inflammation and thrombosis are recognized as interrelated biological processes. Both thrombomodulin (TM) and factor XIII-A (FXIII-A) are involved in inflammation and coagulation process. However, their role in the pathogenesis of diabetic nephropathy (DN) remains unclear. In vitro study, the liver X receptor (LXR) agonist T0901317 can up-regulate the expression of TM in glomerular endothelial cells. Now we evaluated the interaction between TM activation and FXIII-A and their effects against renal injury. Methods We first evaluated the serum levels of FXIII-A and TM and the expression of TM, LXR-α and FXIII-A in renal tissues of patients with biopsy-proven DN. We then analyzed the expression of TM, LXR-α and FXIII-A in renal tissues of db/db DN mice after upregulating TM expression via T0901317 or downregulating its expression via transfection of TM shRNA-loaded adenovirus. We also investigated the serum levels of Tumor necrosis factor (TNF)-α, Interleukin (IL)-6, creatinine, and urinary microalbumin level in db/db mice. Results Our study showed that elevations in serum levels of FXIII-A positively correlated to the serum levels of TM and were also associated with end-stage kidney disease in patients with DN. The number of TM+ cells in the renal tissues of patients with DN negatively correlated with the number of FXIII-A+ cells and positively correlated with the number of LXR-α+ cells and estimated glomerular filtration rate (eGFR), whereas the number of FXIII-A+ cells negatively correlated with the eGFR. Conclusion Thrombomodulin activation with T0901317 downregulated FXIII-A expression in the kidney tissue and alleviated renal injury in db/db mice.
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Affiliation(s)
- Wei Wang
- Renal Division and Institute of Nephrology, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Song Wu
- Renal Division and Institute of Nephrology, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Amanda Y. Wang
- Renal and Metabolic Division, The George Institute for Global Health, University of New South Wales Australia, Newtown, NSW, Australia,Department of Renal Medicine, Concord Repatriation General Hospital, Concord Clinical School, University of Sydney, Camperdown, NSW, Australia,Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia,*Correspondence: Amanda Y. Wang ✉
| | - Tao Wu
- Internal Medicine, Louisiana State University Health Science at Shreveport, Shreveport, LA, United States
| | - Haojun Luo
- Renal Division and Institute of Nephrology, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Jia Wei Zhao
- The Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
| | - Jin Chen
- Renal Division and Institute of Nephrology, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yi Li
- Renal Division and Institute of Nephrology, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Hanlu Ding
- Renal Division and Institute of Nephrology, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China,Hanlu Ding ✉
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Maphumulo SC, Pretorius E. Role of Circulating Microparticles in Type 2 Diabetes Mellitus: Implications for Pathological Clotting. Semin Thromb Hemost 2021; 48:188-205. [PMID: 34959250 DOI: 10.1055/s-0041-1740150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a multifactorial chronic metabolic disease characterized by chronic hyperglycemia due to insulin resistance and a deficiency in insulin secretion. The global diabetes pandemic relates primarily to T2DM, which is the most prevalent form of diabetes, accounting for over 90% of all cases. Chronic low-grade inflammation, triggered by numerous risk factors, and the chronic activation of the immune system are prominent features of T2DM. Here we highlight the role of blood cells (platelets, and red and white blood cells) and vascular endothelial cells as drivers of systemic inflammation in T2DM. In addition, we discuss the role of microparticles (MPs) in systemic inflammation and hypercoagulation. Although once seen as inert by-products of cell activation or destruction, MPs are now considered to be a disseminated storage pool of bioactive effectors of thrombosis, inflammation, and vascular function. They have been identified to circulate at elevated levels in the bloodstream of individuals with increased risk of atherothrombosis or cardiovascular disease, two significant hallmark conditions of T2DM. There is also general evidence that MPs activate blood cells, express proinflammatory and coagulant effects, interact directly with cell receptors, and transfer biological material. MPs are considered major players in the pathogenesis of many systemic inflammatory diseases and may be potentially useful biomarkers of disease activity and may not only be of prognostic value but may act as novel therapeutic targets.
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Affiliation(s)
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
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