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WAN F, YANG R, TANG Y. Uncovering pharmacological mechanisms of Phellinus linteus on focal segmental glomeruloscleosis rats through tandem mass tag-based quantitative proteomic analysis, network pharmacology analysis and experimental validation. J TRADIT CHIN MED 2023; 43:744-750. [PMID: 37454259 PMCID: PMC10320453 DOI: 10.19852/j.cnki.jtcm.20230524.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 08/15/2022] [Indexed: 07/18/2023]
Abstract
OBJECTIVE To explore the underlying molecular mechanism of (). METHODS We used a tandem mass tag-based quantitative proteomic method to determine the differentially expressed proteins. Network pharmacology analysis was used to analysis the main components of and construct the compound-target network. Western blotting and quantitative real-time polymerase chain reaction (qRT-PCR) were used to validate the analyses results. RESULTS The expression levels of thrombospondin-1 (TSP-1) and transforming growth factor (TGF)-β1/Smad3 signaling pathway proteins were significantly upregulated in focal segmental glomeruloscleosis (FSGS) rats. The reduced the expression levels of TSP-1 and TGF-β1 signaling pathway proteins. Network pharmacology analysis revealed that protocatechualdehyde was the main active component. Subsequent and experiments validated the results of proteomic and network pharmacology analyses. CONCLUSIONS Our results suggested that may inhibit renal sclerosis by inhibiting TSP-1-activated TGF-β1 signaling and may have potential applications in the treatment of FSGS.
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Affiliation(s)
- Feng WAN
- Department of Nephrology, Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310007, China
| | - Ruchun YANG
- Department of Nephrology, Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310007, China
| | - Yuewen TANG
- Department of Nephrology, Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310007, China
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Tang YW, Yang RC, Wan F, Tang XL, Zhang HQ, Lin Y. Celastrol attenuates renal injury in 5/6 nephrectomized rats via inhibiting epithelial-mesenchymal transition and transforming growth factor-β1/Smad3 pathway. Exp Biol Med (Maywood) 2022; 247:1947-1955. [PMID: 36046983 PMCID: PMC9742752 DOI: 10.1177/15353702221118087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Renal injury is an important factor in the development of chronic kidney diseases that pathologically manifested as renal fibrosis and podocyte damage. In the disease state, renal fibroblasts lead to high expression levels of α-smooth muscle actin (α-SMA), while podocytes undergo epithelial-mesenchymal transition, leading to proteinuria. Celastrol, a bioactive compound in the medicinal plant Tripterygium wilfordii, was found to delay the progression of early diabetic nephropathy and attenuate renal fibrosis in mice with unilateral ureteral obstruction. However, its effect on the renal system in 5/6 nephrectomized (Nx) rats remains unknown. The aim of this study was to explore the protective effects of celastrol and its underlying mechanisms in 5/6 Nx rats. We found that 24 h proteinuria and levels of blood urea nitrogen, serum creatinine, triglycerides, serum P, renal index and cholesterol significantly increased (P < 0.05), while that of serum albumin decreased significantly in 5/6 Nx rats. After intervention with celastrol, 24 h proteinuria and levels of blood urea nitrogen, serum creatinine, triglycerides, serum P, renal index, and cholesterol significantly decreased, while that of serum albumin significantly increased. Renal tissue pathological staining and transmission electron microscopy showed that celastrol ameliorated kidney injury and glomerular podocyte foot injury and induced significant anti-inflammatory effects. Quantitative polymerase chain reaction (PCR) and western blotting results revealed that nephrin and NEPH1 expression levels were upregulated, whereas α-SMA and Col4a1 expression levels were downregulated in the celastrol group. Celastrol inhibited the expression of transforming growth factor (TGF)-β1/Smad3 signaling pathway-related molecules such as TGF-β1 and P-Smad3. In summary, celastrol contributes to renal protection by inhibiting the epithelial-mesenchymal transdifferentiation and TGF-β1/Smad3 pathways.
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Affiliation(s)
- Yue-Wen Tang
- Department of Nephrology, Dingqiao District of Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou 310000, China,Key Laboratory of Kidney Disease Prevention and Control Technology Zhejiang Province, Hangzhou 310000, China
| | - Ru-Chun Yang
- Key Laboratory of Kidney Disease Prevention and Control Technology Zhejiang Province, Hangzhou 310000, China,Laboratory of Nephropathy, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou 310000, China,Ru-Chun Yang.
| | - Feng Wan
- Key Laboratory of Kidney Disease Prevention and Control Technology Zhejiang Province, Hangzhou 310000, China,Laboratory of Nephropathy, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou 310000, China
| | - Xuan-Li Tang
- Key Laboratory of Kidney Disease Prevention and Control Technology Zhejiang Province, Hangzhou 310000, China,Laboratory of Nephropathy, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou 310000, China
| | - Hua-Qin Zhang
- Key Laboratory of Kidney Disease Prevention and Control Technology Zhejiang Province, Hangzhou 310000, China,Laboratory of Nephropathy, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou 310000, China
| | - Yi Lin
- Key Laboratory of Kidney Disease Prevention and Control Technology Zhejiang Province, Hangzhou 310000, China,Laboratory of Nephropathy, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou 310000, China
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Zhang H, Jiang F, Li L, Liu X, Yan JK. Recent advances in the bioactive polysaccharides and other key components from Phellinus spp. and their pharmacological effects: A review. Int J Biol Macromol 2022; 222:3108-3128. [DOI: 10.1016/j.ijbiomac.2022.10.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/25/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022]
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Wan F, Tang YW, Tang XL, Li YY, Yang RC. TET2 mediated demethylation is involved in the protective effect of triptolide on podocytes. Am J Transl Res 2021; 13:1233-1244. [PMID: 33841652 PMCID: PMC8014380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
The epithelial-mesenchymal transition (EMT) is usually considered the central mechanism of podocyte injury that eventually leads to proteinuria. We used an in vitro TGF-β1 induced podocyte EMT model and an in vivo rat focal segmental glomerulosclerosis (FSGS) model to uncover the mechanism underlying the protective effect of triptolide (TP) on podocytes. We found that TP could reverse the podocyte EMT process and upregulate the expression of TET2 in the TGF-β1-induced podocyte injury model. Bisulfite amplicon sequencing (BSAS) showed TP could alter the methylation status at some specific sites of the medium CpG density region in the promoters of NEPH1 and nephrin, two main markers of the podocyte slit diaphragm. Knockdown of TET2 with shRNA lentivirus (Lv) leads to high methylation of the promoters of NEPH1 and nephrin such that their expression can not return to normal levels, even after treatment with TP. In vivo, we found that TP could protect against podocyte injury in the FSGS rat and increase TET2 expression. These results suggested TET2-mediated DNA demethylation may be partly involved in podocyte injury. We believe these findings can help uncover a novel molecular mechanism of TP in alleviating podocyte-associated glomerular diseases.
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Affiliation(s)
- Feng Wan
- Department of Nephrology, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
- Key Laboratory of Zhejiang Province, Management of Kidney Disease, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
| | - Yue-Wen Tang
- Department of Nephrology, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
- Key Laboratory of Zhejiang Province, Management of Kidney Disease, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
| | - Xuan-Li Tang
- Department of Nephrology, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
- Key Laboratory of Zhejiang Province, Management of Kidney Disease, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
| | - Ya-Yu Li
- Department of Nephrology, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
- Key Laboratory of Zhejiang Province, Management of Kidney Disease, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
| | - Ru-Chun Yang
- Department of Nephrology, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
- Key Laboratory of Zhejiang Province, Management of Kidney Disease, Guang Xing Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou, China
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