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Chen T, Wu S, Feng L, Long S, Liu Y, Zhang C, Lu W, Shen Y, Jiang S, Chen W, Hong G, Zhou L, Wang F, Luo Y, Zou H. The association between activation of the ERK1/2-NF-κB signaling pathway by TIMP2 expression and chronic renal allograft dysfunction in the CRAD rat model. Transpl Immunol 2024; 82:101984. [PMID: 38184210 DOI: 10.1016/j.trim.2023.101984] [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: 08/01/2023] [Revised: 12/05/2023] [Accepted: 12/31/2023] [Indexed: 01/08/2024]
Abstract
PURPOSE The tissue inhibitor of metalloproteinase 2 (TIMP2), a natural inhibitor of matrix metalloproteinase (MMP), regulates inflammation, fibrosis, and cell proliferation. Chronic renal allograft dysfunction (CRAD) is a primary factor affecting the long-term survival of renal allografts. We assessed whether up-regulation of TIMP2 expression may affect the ERK1/2-NF-κB signaling pathway and CRAD development. METHODS Lewis rats received orthotopic F344 kidney allografts to establish the classical CRAD model. The treatment group was injected with a lentivirus encoding a TIMP2-targeting small hairpin (sh)RNA (LTS) at 5 × 108 TU/ml monthly after kidney transplantation. A second CRAD group was injected with a lentivirus TIMP2-control vector (LTC). After 12 weeks, blood, urine, and kidney tissue were harvested to evaluate renal function and pathological examinations. Hematoxylin and eosin staining, Masson staining, and Periodic acid-Schiff staining were performed for renal histopathological evaluation according to the Banff criteria. TIMP2, phospho (p)-ERK1/2, p-p65 (NF-κB) expression levels were measured via immunohistochemical and Western blot analyses. RESULTS Compared to the F344 and Lewis control groups, the expression of TIMP2, p-ERK1/2, and p-p65 were significantly higher in the CRAD and CRAD+LTC renal tissues (p < 0.05). There were also increased levels of serum creatinine, nitrogen, and 24 h urinary protein in these two groups (p < 0.05). Typical histopathological changes of CRAD were observed in the CRAD and CRAD+LTC groups. Administration of LTS effectively decreased the expression of TIMP2, p-ERK1/2, and p-P65, and reduced interstitial fibrosis and macrophage infiltration in the treatment group (p < 0.05). Additionally, MCP1 and ICAM-1, which are downstream cytokines of the NF-κB pathway, were also inhibited in the renal rat kidney from the LTS group (p < 0.05). Furthermore, renal function was well preserved in the LTS group compared to the CRAD group and CRAD+LTC group. CONCLUSION A decrease of TIMP2 can alleviate the progression of inflammation in CRAD via inhibition of the ERK1/2-NF-κB signaling pathway.
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Affiliation(s)
- Tong Chen
- South China Hospital of Shenzhen University, Shenzhen 518116, China; Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National Regional Key Technology Engineering Laboratory for Medical Ultrasound School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Shiquan Wu
- South China Hospital of Shenzhen University, Shenzhen 518116, China
| | - Ling Feng
- Department of Nephrology, Shenzhen Hospital, Southern Medical University, Shenzhen, People's Republic of China
| | - Siyu Long
- South China Hospital of Shenzhen University, Shenzhen 518116, China
| | - Yu Liu
- South China Hospital of Shenzhen University, Shenzhen 518116, China; Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National Regional Key Technology Engineering Laboratory for Medical Ultrasound School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Caibin Zhang
- School of Medicine, The Chinese University of Hong Kong, Shenzhen, China
| | - Wenqian Lu
- School of Medicine, The Chinese University of Hong Kong, Shenzhen, China
| | - Yuli Shen
- School of Medicine, The Chinese University of Hong Kong, Shenzhen, China
| | - Shanshan Jiang
- South China Hospital of Shenzhen University, Shenzhen 518116, China
| | - Wenya Chen
- South China Hospital of Shenzhen University, Shenzhen 518116, China
| | - Guoai Hong
- South China Hospital of Shenzhen University, Shenzhen 518116, China
| | - Li Zhou
- South China Hospital of Shenzhen University, Shenzhen 518116, China
| | - Fang Wang
- South China Hospital of Shenzhen University, Shenzhen 518116, China
| | - Yuechan Luo
- South China Hospital of Shenzhen University, Shenzhen 518116, China
| | - Hequn Zou
- South China Hospital of Shenzhen University, Shenzhen 518116, China; School of Medicine, The Chinese University of Hong Kong, Shenzhen, China.
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Protective effect of rosiglitazone on chronic renal allograft dysfunction in rats. Transpl Immunol 2019; 54:20-28. [PMID: 30682409 DOI: 10.1016/j.trim.2019.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 01/18/2019] [Accepted: 01/21/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Chronic renal allograft dysfunction (CRAD) is the main condition affecting the long-term survival of renal allografts. Rosiglitazone, which is a peroxisome proliferator-activated receptor-γ (PPAR-γ) agonist, has been shown to exert antifibrotic and anti-inflammatory effects on some renal diseases. The present paper investigates the effect of rosiglitazone on CRAD using a murine model. METHODS The CRAD group received classical orthotopic F344-Lewis kidney transplantation. The treatment group was treated with rosiglitazone for 12 weeks following renal transplantation. The control subjects were uninephrectomized F344 and Lewis rats. Twelve weeks after the operation, the rats were harvested for renal function, histological, immunohistochemical and molecular biological analyses. RESULTS Rosiglitazone treatment effectively decreased urine protein excretion and preserved renal function in the CRAD rats. Administration of rosiglitazone also inhibited interstitial fibrosis and macrophage infiltration in the CRAD rat kidneys. Furthermore, rosiglitazone treatment inhibited TGF-β and NF-κB pathway activation, decreased collagen I, collagen IV, α-SMA, MCP-1, ICAM-1, TNF-α, and IL-1β expression, and increased E-cadherin expression in renal allograft tissues from the CRAD rats. CONCLUSIONS Rosiglitazone successfully attenuates the development of CRAD via inhibition of TGF-β signaling, the renal tubular epithelial-to-mesenchymal transition (EMT), and inflammation.
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Xia Y, Deng J, Zhou Q, Shao X, Yang X, Sha M, Zou H. Expression and significance of Sirt1 in renal allografts at the early stage of chronic renal allograft dysfunction. Transpl Immunol 2018; 48:18-25. [DOI: 10.1016/j.trim.2018.02.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 02/11/2018] [Accepted: 02/12/2018] [Indexed: 02/07/2023]
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Li L, Xiao T, Li F, Li Y, Zeng O, Liu M, Liang B, Li Z, Chu C, Yang J. Hydrogen sulfide reduced renal tissue fibrosis by regulating autophagy in diabetic rats. Mol Med Rep 2017; 16:1715-1722. [PMID: 28656209 PMCID: PMC5561787 DOI: 10.3892/mmr.2017.6813] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 03/09/2017] [Indexed: 11/16/2022] Open
Abstract
The present study aimed to explore the effect of hydrogen sulfide (H2S) on renal tissue fibrosis and its mechanism in diabetic rats. Rats were randomly divided into four groups (n=13/group): Control group; induced diabetes mellitus group (STZ); induced diabetes mellitus treated with H2S group (STZ + H2S); normal rats treated with H2S group (H2S). The diabetic model was induced by intraperitoneal (i.p.) injections of 40 mg/kg body weight streptozotocin (STZ); the control group was treated with saline every day (i.p); NaHS (100 µmol/kg i.p.) was administered to rats of STZ + H2S group and H2S group. After 8 weeks, rat body weight and 24 h proteinuria levels were determined in each group, renal pathological morphology was analyzed by Masson's trichrome staining, collagen IV content was detected by immunohistochemistry, and periodic acid-Schiff (PAS) staining was performed on renal glomerular and tubular basement membranes. The expression levels of matrix metalloproteinase 9 (MMP9), MMP7, tissue inhibitor of metalloproteinase 1 (TIMP1), superoxide dismutase (SOD), serine/threonine kinase AKT, transforming growth factor (TGF)-β1, nuclear factor (NF)-κB and several autophagy related proteins were assessed by western blot analysis. Compared with the control group, renal tissue fibrosis was observed, collagen IV expression and the 24 h proteinuria quantity was markedly increased and the amount of PAS positive material in renal glomerular and tubular basement membranes was notably increased in STZ-treated rats. Furthermore, the expression levels of MMP9, MMP7, TIMP1, autophagy-associated proteins, AKT, TGF-β1 and NF-κB protein were significantly increased, and SOD expression levels were significantly decreased in the STZ group compared with the control (P<0.05). In the H2S+STZ group, renal tissue fibrosis and the expression of collagen IV were improved, 24 h proteinuria was decreased, the amount of PAS positive material in renal glomerular and tubular basement membranes was decreased, the expression levels MMP9, MMP7, TIMP1, autophagy-associated proteins, AKT, TGF-β1 and NF-κB protein were significantly decreased, and the expression levels of SOD were significantly increased compared with the STZ group (P<0.05). In conclusion, H2S may improve renal tissue fibrosis by inhibiting autophagy, upregulating SOD and downregulating AKT, TGF-β1 and NF-κB.
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Affiliation(s)
- Lin Li
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Ting Xiao
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Fang Li
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Yan Li
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Ou Zeng
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Maojun Liu
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Biao Liang
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Zining Li
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Chun Chu
- Department of Pharmacy, The Second Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Jun Yang
- Department of Cardiology, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
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Yang C, Cao Y, Zhang Y, Li L, Xu M, Long Y, Rong R, Zhu T. Cyclic helix B peptide inhibits ischemia reperfusion-induced renal fibrosis via the PI3K/Akt/FoxO3a pathway. J Transl Med 2015; 13:355. [PMID: 26554357 PMCID: PMC4641348 DOI: 10.1186/s12967-015-0699-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 10/15/2015] [Indexed: 02/08/2023] Open
Abstract
Renal fibrosis is a main cause of end-stage renal disease. Clinically, there is no beneficial treatment that can effectively reverse the progressive loss of renal function. We recently synthesized a novel proteolysis-resistant cyclic helix B peptide (CHBP) that exhibits promising renoprotective effects. In this study, we evaluated the effect of CHBP on renal fibrosis in an in vivo ischemia reperfusion injury (IRI) model and in vitro TGF-β-stimulated tubular epithelial cells (TCMK-1 and HK-2) model. In the IRI in vivo model, mice were randomly divided into sham (sham operation), IR and IR + CHBP groups (n = 6). CHBP (8 nmol/kg) was administered intraperitoneally at the onset of reperfusion, and renal fibrosis was evaluated at 12 weeks post-reperfusion. Our results showed that CHBP markedly attenuated the IRI-induced deposition of collagen I and
vimentin. In the in vitro model, CHBP reversed the TGF-β-induced down-regulation of E-cadherin and up-regulation of α-SMA and vimentin. Furthermore, CHBP inhibited the phosphorylation of Akt and Forkhead box O 3a (FoxO3a), whose anti-fibrotic effect could be reversed by the 3-phosphoinositide-dependent kinase-1 (PI3K) inhibitor wortmannin as well as FoxO3a siRNA. These findings demonstrate that CHBP attenuates renal fibrosis and the epithelial-mesenchymal transition of tubular cells, possibly through suppression of the PI3K/Akt pathway
and thereby the inhibition FoxO3a activity.
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Affiliation(s)
- Cheng Yang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China. .,Shanghai Key Laboratory of Organ Transplantation, 180 Fenglin Road, Shanghai, 200032, China. .,Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
| | - Ye Cao
- Department of Chinese Traditional Medicine, Shanghai University of Chinese Traditional Medicine, Shanghai, 201203, China. .,The Faculty of Life Science and Computing, London Metropolitan University, London, N7 8DB, UK.
| | - Yi Zhang
- Shanghai Key Laboratory of Organ Transplantation, 180 Fenglin Road, Shanghai, 200032, China.
| | - Long Li
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China. .,Shanghai Key Laboratory of Organ Transplantation, 180 Fenglin Road, Shanghai, 200032, China.
| | - Ming Xu
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China. .,Shanghai Key Laboratory of Organ Transplantation, 180 Fenglin Road, Shanghai, 200032, China.
| | - Yaqiu Long
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
| | - Ruiming Rong
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China. .,Shanghai Key Laboratory of Organ Transplantation, 180 Fenglin Road, Shanghai, 200032, China. .,Department of Transfusion, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
| | - Tongyu Zhu
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China. .,Shanghai Key Laboratory of Organ Transplantation, 180 Fenglin Road, Shanghai, 200032, China. .,Qingpu Branch Zhongshan Hospital, Fudan University, 1158 Gongyuan Road East, Shanghai, 201700, China.
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