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Feng Y, Sun Z, Fu J, Zhong F, Zhang W, Wei C, Chen A, Liu BC, He JC, Lee K. Podocyte-derived soluble RARRES1 drives kidney disease progression through direct podocyte and proximal tubular injury. Kidney Int 2024; 106:50-66. [PMID: 38697478 PMCID: PMC11193616 DOI: 10.1016/j.kint.2024.04.011] [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: 06/23/2023] [Revised: 03/13/2024] [Accepted: 04/02/2024] [Indexed: 05/05/2024]
Abstract
Retinoic acid receptor responder protein-1 (RARRES1) is a podocyte-enriched transmembrane protein whose increased expression correlates with human glomerular disease progression. RARRES1 promotes podocytopenia and glomerulosclerosis via p53-mediated podocyte apoptosis. Importantly, the cytopathic actions of RARRES1 are entirely dependent on its proteolytic cleavage into a soluble protein (sRARRES1) and subsequent podocyte uptake by endocytosis, as a cleavage mutant RARRES1 exerted no effects in vitro or in vivo. As RARRES1 expression is upregulated in human glomerular diseases, here we investigated the functional consequence of podocyte-specific overexpression of RARRES1 in mice in the experimental focal segmental glomerulosclerosis and diabetic kidney disease. We also examined the effects of long-term RARRES1 overexpression on slowly developing aging-induced kidney injury. As anticipated, the induction of podocyte overexpression of RARRES1 (Pod-RARRES1WT) significantly worsened glomerular injuries and worsened kidney function in all three models, while overexpression of RARRES1 cleavage mutant (Pod-RARRES1MT) did not. Remarkably, direct uptake of sRARRES1 was also seen in proximal tubules of injured Pod-RARRES1WT mice and associated with exacerbated tubular injuries, vacuolation, and lipid accumulation. Single-cell RNA sequence analysis of mouse kidneys demonstrated RARRES1 led to a marked deregulation of lipid metabolism in proximal tubule subsets. We further identified matrix metalloproteinase 23 (MMP23) as a highly podocyte-specific metalloproteinase and responsible for RARRES1 cleavage in disease settings, as adeno-associated virus 9-mediated knockdown of MMP23 abrogated sRARRES1 uptake in tubular cells in vivo. Thus, our study delineates a previously unrecognized mechanism by which a podocyte-derived protein directly facilitates podocyte and tubular injury in glomerular diseases and suggests that podocyte-specific functions of RARRES1 and MMP23 may be targeted to ameliorate glomerular disease progression in vivo.
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Affiliation(s)
- Ye Feng
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA
| | - Zeguo Sun
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA
| | - Jia Fu
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA
| | - Fang Zhong
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA
| | - Weijia Zhang
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA
| | - Chengguo Wei
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA
| | - Anqun Chen
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - John C He
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA; Renal Section, James J. Peters Veterans Affairs Medical Center, Bronx, New York, USA.
| | - Kyung Lee
- Department of Medicine, Nephrology Division, Icahn School of Medicine at Mount Sinai, New York, New York USA.
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2
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Wang X, Sun Z, Fu J, Fang Z, Zhang W, He JC, Lee K. LRG1 loss effectively restrains glomerular TGF-β signaling to attenuate diabetic kidney disease. Mol Ther 2024:S1525-0016(24)00410-6. [PMID: 38910328 DOI: 10.1016/j.ymthe.2024.06.027] [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: 03/26/2024] [Revised: 06/04/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024] Open
Abstract
Transforming growth factor (TGF)-β signaling is a well-established pathogenic mediator of diabetic kidney disease (DKD). However, owing to its pleiotropic actions, its systemic blockade is not therapeutically optimal. The expression of TGF-β signaling regulators can substantially influence TGF-β's effects in a cell- or context-specific manner. Among these, leucine-rich α2-glycoprotein 1 (LRG1) is significantly increased in glomerular endothelial cells (GECs) in DKD. As LRG1 is a secreted molecule that can exert autocrine and paracrine effects, we examined the effects of LRG1 loss in kidney cells in diabetic OVE26 mice by single-cell transcriptomic analysis. Gene expression analysis confirmed a predominant expression of Lrg1 in GECs, which further increased in diabetic kidneys. Loss of Lrg1 led to the reversal of angiogenic and TGF-β-induced gene expression in GECs, which were associated with DKD attenuation. Notably, Lrg1 loss also mitigated the increased TGF-β-mediated gene expression in both podocytes and mesangial cells in diabetic mice, indicating that GEC-derived LRG1 potentiates TGF-β signaling in glomerular cells in an autocrine and paracrine manner. Indeed, a significant reduction in phospho-Smad proteins was observed in the glomerular cells of OVE26 mice with LRG1 loss. These results indicate that specific antagonisms of LRG1 may be an effective approach to curb the hyperactive glomerular TGF-β signaling to attenuate DKD.
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Affiliation(s)
- Xuan Wang
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Nephrology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zeguo Sun
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jia Fu
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Zhengying Fang
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Weijia Zhang
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - John C He
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Renal Section, James J. Peters Veterans Affair Medical Center, Bronx, NY 10468, USA.
| | - Kyung Lee
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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3
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Yang K, Zhang Y, Ding J, Li Z, Zhang H, Zou F. Autoimmune CD8+ T cells in type 1 diabetes: from single-cell RNA sequencing to T-cell receptor redirection. Front Endocrinol (Lausanne) 2024; 15:1377322. [PMID: 38800484 PMCID: PMC11116783 DOI: 10.3389/fendo.2024.1377322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 04/18/2024] [Indexed: 05/29/2024] Open
Abstract
Type 1 diabetes (T1D) is an organ-specific autoimmune disease caused by pancreatic β cell destruction and mediated primarily by autoreactive CD8+ T cells. It has been shown that only a small number of stem cell-like β cell-specific CD8+ T cells are needed to convert normal mice into T1D mice; thus, it is likely that T1D can be cured or significantly improved by modulating or altering self-reactive CD8+ T cells. However, stem cell-type, effector and exhausted CD8+ T cells play intricate and important roles in T1D. The highly diverse T-cell receptors (TCRs) also make precise and stable targeted therapy more difficult. Therefore, this review will investigate the mechanisms of autoimmune CD8+ T cells and TCRs in T1D, as well as the related single-cell RNA sequencing (ScRNA-Seq), CRISPR/Cas9, chimeric antigen receptor T-cell (CAR-T) and T-cell receptor-gene engineered T cells (TCR-T), for a detailed and clear overview. This review highlights that targeting CD8+ T cells and their TCRs may be a potential strategy for predicting or treating T1D.
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Affiliation(s)
- Kangping Yang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yihan Zhang
- The Second Clinical Medicine School, Nanchang University, Nanchang, China
| | - Jiatong Ding
- The Second Clinical Medicine School, Nanchang University, Nanchang, China
| | - Zelin Li
- The First Clinical Medicine School, Nanchang University, Nanchang, China
| | - Hejin Zhang
- The Second Clinical Medicine School, Nanchang University, Nanchang, China
| | - Fang Zou
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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4
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Tian X, Pedigo CE, Li K, Ma X, Bunda P, Pell J, Lek A, Gu J, Zhang Y, Medina Rangel PX, Li W, Schwartze E, Nagata S, Lerner G, Perincheri S, Priyadarshini A, Zhao H, Lek M, Menon MC, Fu R, Ishibe S. Profilin1 is required for prevention of mitotic catastrophe in murine and human glomerular diseases. J Clin Invest 2023; 133:e171237. [PMID: 37847555 PMCID: PMC10721156 DOI: 10.1172/jci171237] [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: 04/05/2023] [Accepted: 10/12/2023] [Indexed: 10/18/2023] Open
Abstract
The progression of proteinuric kidney diseases is associated with podocyte loss, but the mechanisms underlying this process remain unclear. Podocytes reenter the cell cycle to repair double-stranded DNA breaks. However, unsuccessful repair can result in podocytes crossing the G1/S checkpoint and undergoing abortive cytokinesis. In this study, we identified Pfn1 as indispensable in maintaining glomerular integrity - its tissue-specific loss in mouse podocytes resulted in severe proteinuria and kidney failure. Our results suggest that this phenotype is due to podocyte mitotic catastrophe (MC), characterized histologically and ultrastructurally by abundant multinucleated cells, irregular nuclei, and mitotic spindles. Podocyte cell cycle reentry was identified using FUCCI2aR mice, and we observed altered expression of cell-cycle associated proteins, such as p21, p53, cyclin B1, and cyclin D1. Podocyte-specific translating ribosome affinity purification and RNA-Seq revealed the downregulation of ribosomal RNA-processing 8 (Rrp8). Overexpression of Rrp8 in Pfn1-KO podocytes partially rescued the phenotype in vitro. Clinical and ultrastructural tomographic analysis of patients with diverse proteinuric kidney diseases further validated the presence of MC podocytes and reduction in podocyte PFN1 expression within kidney tissues. These results suggest that profilin1 is essential in regulating the podocyte cell cycle and its disruption leads to MC and subsequent podocyte loss.
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Affiliation(s)
- Xuefei Tian
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Christopher E. Pedigo
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Ke Li
- Department of Nephrology, Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xiaotao Ma
- Department of Nephrology, Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Patricia Bunda
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - John Pell
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Jianlei Gu
- Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut, USA
| | - Yan Zhang
- Bioinformation Department, Suzhou SITRI Institute of Immunology Co. Ltd., Suzhou, Jiangsu, China
| | - Paulina X. Medina Rangel
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Wei Li
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Eike Schwartze
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Soichiro Nagata
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Gabriel Lerner
- Departments of Surgical Pathology and Laboratory Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Sudhir Perincheri
- Departments of Surgical Pathology and Laboratory Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Anupama Priyadarshini
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Hongyu Zhao
- Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut, USA
| | | | - Madhav C. Menon
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Rongguo Fu
- Department of Nephrology, Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Shuta Ishibe
- Section of Nephrology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
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5
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Wang T, Li C, Wang X, Liu F. MAGI2 ameliorates podocyte apoptosis of diabetic kidney disease through communication with TGF-β-Smad3/nephrin pathway. FASEB J 2023; 37:e23305. [PMID: 37950637 DOI: 10.1096/fj.202301058r] [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: 05/27/2023] [Revised: 09/15/2023] [Accepted: 10/27/2023] [Indexed: 11/13/2023]
Abstract
Podocytes, the key component of the glomerular filtration barrier (GFB), are gradually lost during the progression of diabetic kidney disease (DKD), severely compromising kidney functionality. The molecular mechanisms regulating the survival of podocytes in DKD are incompletely understood. Here, we show that membrane-associated guanylate kinase inverted 2 (MAGI2) is specifically expressed in renal podocytes, and promotes podocyte survival in DKD. We found that MAGI2 expression was downregulated in podocytes cultured with high-glucose in vitro, and in kidneys of db/db mice as well as DKD patients. Conversely, we found enforced expression of MAGI2 via AAV transduction protected podocytes from apoptosis, with concomitant improvement of renal functions. Mechanistically, we found that MAGI2 deficiency induced by high glucose levels activates TGF-β signaling to decrease the expression of anti-apoptotic proteins. These results indicate that MAGI2 protects podocytes from cell death, and can be harnessed therapeutically to improve renal function in diabetic kidney disease.
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Affiliation(s)
- Tingli Wang
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Chen Li
- Centre for Translational Research in Cancer, Sichuan Cancer Hospital & Institute, School of medicine, University of Electronic Science and Technology of China, Chengdu, China
- West China Hospital, Sichuan University, Chengdu, China
| | - Xiaofei Wang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Fang Liu
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital, Sichuan University, Chengdu, China
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6
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Albrecht M, Sticht C, Wagner T, Hettler SA, De La Torre C, Qiu J, Gretz N, Albrecht T, Yard B, Sleeman JP, Garvalov BK. The crosstalk between glomerular endothelial cells and podocytes controls their responses to metabolic stimuli in diabetic nephropathy. Sci Rep 2023; 13:17985. [PMID: 37863933 PMCID: PMC10589299 DOI: 10.1038/s41598-023-45139-7] [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: 11/29/2022] [Accepted: 10/16/2023] [Indexed: 10/22/2023] Open
Abstract
In diabetic nephropathy (DN), glomerular endothelial cells (GECs) and podocytes undergo pathological alterations, which are influenced by metabolic changes characteristic of diabetes, including hyperglycaemia (HG) and elevated methylglyoxal (MGO) levels. However, it remains insufficiently understood what effects these metabolic factors have on GEC and podocytes and to what extent the interactions between the two cell types can modulate these effects. To address these questions, we established a co-culture system in which GECs and podocytes were grown together in close proximity, and assessed transcriptional changes in each cell type after exposure to HG and MGO. We found that HG and MGO had distinct effects on gene expression and that the effect of each treatment was markedly different between GECs and podocytes. HG treatment led to upregulation of "immediate early response" genes, particularly those of the EGR family, as well as genes involved in inflammatory responses (in GECs) or DNA replication/cell cycle (in podocytes). Interestingly, both HG and MGO led to downregulation of genes related to extracellular matrix organisation in podocytes. Crucially, the transcriptional responses of GECs and podocytes were dependent on their interaction with each other, as many of the prominently regulated genes in co-culture of the two cell types were not significantly changed when monocultures of the cells were exposed to the same stimuli. Finally, the changes in the expression of selected genes were validated in BTBR ob/ob mice, an established model of DN. This work highlights the molecular alterations in GECs and podocytes in response to the key diabetic metabolic triggers HG and MGO, as well as the central role of GEC-podocyte crosstalk in governing these responses.
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Affiliation(s)
- Michael Albrecht
- European Center for Angioscience (ECAS), Medical Faculty Mannheim of the University of Heidelberg, Ludolf-Krehl-Strasse 13-17, 68167, Mannheim, Germany
- Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim of the University of Heidelberg, Ludolf-Krehl-Strasse 13-17, 68167, Mannheim, Germany
| | - Carsten Sticht
- Center of Medical Research, Bioinformatics and Statistics, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- NGS Core Facility, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Tabea Wagner
- European Center for Angioscience (ECAS), Medical Faculty Mannheim of the University of Heidelberg, Ludolf-Krehl-Strasse 13-17, 68167, Mannheim, Germany
- Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim of the University of Heidelberg, Ludolf-Krehl-Strasse 13-17, 68167, Mannheim, Germany
| | - Steffen A Hettler
- Department of Nephrology, Hypertensiology, Endocrinology, Diabetology, Rheumatology and Pneumology, Fifth Department of Medicine, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Carolina De La Torre
- Center of Medical Research, Bioinformatics and Statistics, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- NGS Core Facility, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Jiedong Qiu
- Department of Nephrology, Hypertensiology, Endocrinology, Diabetology, Rheumatology and Pneumology, Fifth Department of Medicine, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Norbert Gretz
- Center of Medical Research, Bioinformatics and Statistics, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Thomas Albrecht
- Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 224, Heidelberg, Germany
| | - Benito Yard
- Department of Nephrology, Hypertensiology, Endocrinology, Diabetology, Rheumatology and Pneumology, Fifth Department of Medicine, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Jonathan P Sleeman
- European Center for Angioscience (ECAS), Medical Faculty Mannheim of the University of Heidelberg, Ludolf-Krehl-Strasse 13-17, 68167, Mannheim, Germany.
- Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim of the University of Heidelberg, Ludolf-Krehl-Strasse 13-17, 68167, Mannheim, Germany.
- Institute of Biological and Chemical Systems - Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology Campus North, Building 319, Hermann-Von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
| | - Boyan K Garvalov
- European Center for Angioscience (ECAS), Medical Faculty Mannheim of the University of Heidelberg, Ludolf-Krehl-Strasse 13-17, 68167, Mannheim, Germany.
- Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim of the University of Heidelberg, Ludolf-Krehl-Strasse 13-17, 68167, Mannheim, Germany.
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Yang C, Zhang Z, Liu J, Chen P, Li J, Shu H, Chu Y, Li L. Research progress on multiple cell death pathways of podocytes in diabetic kidney disease. Mol Med 2023; 29:135. [PMID: 37828444 PMCID: PMC10571269 DOI: 10.1186/s10020-023-00732-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023] Open
Abstract
Diabetic kidney disease (DKD) is the main cause of end-stage renal disease, and its clinical manifestations are progressive proteinuria, decreased glomerular filtration rate, and renal failure. The injury and death of glomerular podocytes are the keys to DKD. Currently, a variety of cell death modes have been identified in podocytes, including apoptosis, autophagy, endoplasmic reticulum (ER) stress, pyroptosis, necroptosis, ferroptosis, mitotic catastrophe, etc. The signaling pathways leading to these cell death processes are interconnected and can be activated simultaneously or in parallel. They are essential for cell survival and death that determine the fate of cells. With the deepening of the research on the mechanism of cell death, more and more researchers have devoted their attention to the underlying pathologic research and the drug therapy research of DKD. In this paper, we discussed the podocyte physiologic role and DKD processes. We also provide an overview of the types and specific mechanisms involved in each type of cell death in DKD, as well as related targeted therapy methods and drugs are reviewed. In the last part we discuss the complexity and potential crosstalk between various modes of cell death, which will help improve the understanding of podocyte death and lay a foundation for new and ideal targeted therapy strategies for DKD treatment in the future.
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Affiliation(s)
- Can Yang
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, 157000, China
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Zhen Zhang
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, 157000, China
- School of First Clinical Medical College, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Jieting Liu
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, 157000, China
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Peijian Chen
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, 157000, China
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Jialing Li
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, 157000, China
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Haiying Shu
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, 157000, China
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Yanhui Chu
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, 157000, China.
| | - Luxin Li
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, 157000, China.
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, 157000, China.
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8
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Tsai YC, Wu CF, Hung WW, Yu PS, Liu CC, Hsieh TJ, Chen CC, Li SS, Chen JJ, Chiu YW, Hwang SJ, Wu MT. Environmental melamine exposure and adverse kidney outcomes in patients with type 2 diabetes mellitus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 331:121883. [PMID: 37236580 DOI: 10.1016/j.envpol.2023.121883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/19/2023] [Accepted: 05/23/2023] [Indexed: 05/28/2023]
Abstract
The impact of melamine exposure on kidney outcomes in type 2 diabetes mellitus (T2D) patients remains unclear. In this prospective cohort study, 561 T2D patients during October 2016 and June 2020 were enrolled and followed until December 2021. Baseline one-spot urinary corrected melamine levels were measured by LC-MS/MS. Average daily intake (ADI) of melamine represented environmental melamine exposure in daily life, and was estimated using urinary corrected melamine level by creatinine excretion (CE)-based model. Primary kidney outcomes were defined as doubling of serum creatinine levels or end stage kidney disease (ESKD), and secondary kidney outcomes included rapid decline in kidney function as estimated glomerular filtration rate (eGFR) decline >5 ml/min/1.73 m2/year. Baseline median urinary corrected melamine levels and estimated DI of melamine were 0.8 μg/mmol and 0.3 μg/kg/day in 561 T2D patients. During 3.7 years of follow-up, urinary corrected melamine level was positively correlated with reaching composite outcomes of either doubling of serum creation levels or ESKD and rapid decline in kidney function. Those with the highest quartile of urinary corrected melamine had 2.96-fold risk of composite outcomes of either doubling of serum creation levels or ESKD and 2.47-fold risk of eGFR decline >5 ml/min/1.73 m2/year. Estimated ADI of melamine also had significant correlation with adverse kidney outcomes. Furthermore, the positive relationship between melamine exposure and rapid decline in kidney function was only found in T2D patients with male, baseline eGFR ≥60 ml/min/1.73 m2 or glycated hemoglobin ≤7%. In conclusion, melamine exposure is significantly associated with adverse kidney outcomes in T2D patients, especially in those with male, well sugar control or good baseline kidney function.
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Affiliation(s)
- Yi-Chun Tsai
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of General Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Center for Liquid Biopsy and Cohort Research, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Fang Wu
- International Master Program of Translational Medicine, National United University, Miaoli, Taiwan
| | - Wei-Wen Hung
- Division of Endocrinology and Metabolism, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ping-Shaou Yu
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Kaohsiung Municipal CiJin Hospital, Kaohsiung, Taiwan
| | - Chia-Chu Liu
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tusty-Jiuan Hsieh
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chu-Chih Chen
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Sih-Syuan Li
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jia-Jen Chen
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Wen Chiu
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shang-Jyh Hwang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Endocrinology and Metabolism, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Tsang Wu
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City, Taiwan; Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan.
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Li HQ, Liu N, Zheng ZY, Teng HL, Pei J. Clopidogrel delays and can reverse diabetic nephropathy pathogenesis in type 2 diabetic db/db mice. World J Diabetes 2022; 13:600-612. [PMID: 36159226 PMCID: PMC9412856 DOI: 10.4239/wjd.v13.i8.600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 01/26/2022] [Accepted: 06/26/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is the principal cause of end-stage renal disease. Previous studies have shown that clopidogrel can prevent the early progression of renal injury.
AIM To elucidate whether clopidogrel is beneficial against DN by using a db/db mouse model.
METHODS db/db mice with a higher urinary albumin/creatinine ratio (ACR) relative to age- and sex-matched wild-type control mice were randomly allocated to clopidogrel and vehicle treatment groups. Clopidogrel was administered at doses of 5, 10, and 20 mg/kg by gavage for 12 wk. Body mass, blood glucose level, and urinary creatinine and albumin concentrations in each group were measured before and after the intervention. Renal fibrosis was evaluated using periodic acid-Schiff and Masson’s trichrome staining. The renal protein expression of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and F4/80 was assessed using immunohistochemistry. Urinary TNF-α, monocyte chemoattractant protein-1 (MCP-1), and IL-6 levels were analyzed using enzyme-linked immunosorbent assay; TNF-α and IL-1β mRNA expression was measured using real-time quantitative polymerase chain reaction. The protein expression of fibronectin (FN) and collagen I was assessed using immunohistochemistry.
RESULTS Clopidogrel treatment did not affect the body mass or blood glucose level of the db/db mice; however, it increased bleeding time and reduced urinary ACR in a dose-dependent manner. Immunohistochemical staining revealed an amelioration of renal fibrosis, significantly lower deposition of FN and collagen I, and significantly lower expression of the proinflammatory cytokines TNF-α and IL-1β and lower levels of urinary TNF-α and MCP-1 in the clopidogrel-treated db/db mice (P < 0.05). Furthermore, clopidogrel significantly reduced macrophage infiltration into the glomeruli of the db/db mice.
CONCLUSION Clopidogrel significantly reduced renal collagen deposition and fibrosis and prevented renal dysfunction in db/db mice, most likely through inhibition of renal macrophage infiltration and the associated inflammation.
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Affiliation(s)
- Hong-Qin Li
- Department of Biopharmacy, Jilin University School of Pharmaceutical Sciences, Changchun 130021, Jilin Province, China
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Nian Liu
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Zong-Yu Zheng
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Hao-Lin Teng
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Jin Pei
- Department of Biopharmacy, Jilin University School of Pharmaceutical Sciences, Changchun 130021, Jilin Province, China
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Gao J, Liang Z, Zhao F, Liu X, Ma N. Triptolide inhibits oxidative stress and inflammation via the microRNA-155-5p/brain-derived neurotrophic factor to reduce podocyte injury in mice with diabetic nephropathy. Bioengineered 2022; 13:12275-12288. [PMID: 35603354 PMCID: PMC9275869 DOI: 10.1080/21655979.2022.2067293] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Diabetic nephropathy (DN) is a complication of diabetes. This study sought to explore the mechanism of triptolide (TP) in podocyte injury in DN. DN mice were induced by high-fat diet&streptozocin and treated with TP. Fasting blood glucose, 24 h urine microalbumin (UMA), the pathological changes of renal tissues, and ultrastructure of renal podocytes were observed. Podocytes (MPC5) were induced by high-glucose (HG) in vitro and treated with TP or microRNA (miR)-155-5p mimics, with Irbesartan as positive control. Reactive oxygen species (ROS) and levels of oxidative stress (OS) and inflammatory factors in MPC5 were detected. The levels of miR-155-5p, podocyte marker protein Nephrin, and inflammatory factors in mice and MPC5 were detected. The targeting relationship between miR-155-5p and brain-derived neurotrophic factor (BDNF) was verified. The expression levels of BDNF were detected. miR-155-5p mimics and overexpressed (oe)-BDNF plasmids were co-transfected into mouse podocytes treated with HG and TP. TP reduced fasting glucose and 24 h UMA of DN mice, alleviated the pathological damage and podocyte injury, up-regulated Nephrin level, and down-regulated miR-155-5p. TP down-regulated the high expression of miR-155-5p in HG-induced MPC5 cells and inhibited HG-induced OS and inflammatory injury, and the improvement effect of TP was better than Irbesartan. Overexpression of miR-155-5p reversed the protective effect of TP on injured mouse podocytes. miR-155-5p targeted BDNF. oe-BDNF reversed the inhibitory effect of oe-miR-155-5p on TP protection on podocyte injury in mice. Overall, TP up-regulated BDNF by inhibiting miR-155-5p, thus inhibiting OS and inflammatory damage and alleviating podocyte injury in DN mice.
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Affiliation(s)
- Jian Gao
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Zheng Liang
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Fei Zhao
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Xiaojing Liu
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Ning Ma
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
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