1
|
Cheng Y, Liu Y, Lin L, Li D, Peng L, Zheng K, Tao J, Li M. The effects of Tripterygium wilfordii Hook F on renal outcomes in type 2 diabetic kidney disease patients with severe proteinuria: a single-center cohort study. Ren Fail 2024; 46:2295425. [PMID: 38178377 PMCID: PMC10773657 DOI: 10.1080/0886022x.2023.2295425] [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: 03/28/2023] [Accepted: 12/11/2023] [Indexed: 01/06/2024] Open
Abstract
AIM Tripterygium wilfordii Hook F (TwHF) has been shown to substantially reduce proteinuria in patients with diabetic kidney disease (DKD); however, the effect of TwHF on renal outcomes in DKD remains unknown. Accordingly, we aimed to establish the effects of TwHF on renal outcomes in patients with DKD. METHODS Overall, 124 patients with DKD, induced by type 2 diabetes mellitus, with 24-h proteinuria > 2 g, and an estimated glomerular filtration rate > 30 mL/min/1.73 m2 were retrospectively investigated. The renal outcomes were defined as doubling serum creatinine levels or end-stage kidney disease. Kaplan-Meier curves and Cox regression analyses were performed to analyze prognostic factors for renal outcomes. RESULTS By the end of the follow-up, renal outcomes were observed in 23 and 11 patients in the non-TwHF and TwHF groups, respectively (p = 0.006). TwHF significantly reduced the risk of renal outcomes (adjusted hazard ratio [HR] 0.271, 95% confidence interval [CI] 0.111-0.660, p = 0.004) in patients with chronic kidney disease (CKD) G3 (adjusted HR 0.274, 95%CI 0.081-0.932, p = 0.039). Based on the Kaplan-Meier analysis, 1- and 3-year proportions of patients without renal outcomes were significantly lower in the non-TwHF group than those in the TwHF group (92.8% vs. 95.5% and 47.2% vs. 76.8%, respectively; p = 0.0018). CONCLUSION In DKD patients with severe proteinuria, TwHF could prevent DKD progression, especially in patients with CKD G3. A randomized clinical trial is needed to elucidate the benefits of TwHF on renal outcomes in patients with DKD.
Collapse
Affiliation(s)
- Yaqi Cheng
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yuhao Liu
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Liling Lin
- Department of Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Danni Li
- Department of Emergency, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Liying Peng
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Ke Zheng
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jianling Tao
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Mingxi Li
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| |
Collapse
|
2
|
Tang YW, Jiang MY, Cao JW, Wan F. Triptolide decreases podocytes permeability by regulating TET2-mediated hydroxymethylation of ZO-1. Exp Biol Med (Maywood) 2024; 249:10051. [PMID: 38881848 PMCID: PMC11176508 DOI: 10.3389/ebm.2024.10051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 05/07/2024] [Indexed: 06/18/2024] Open
Abstract
Podocyte injury or dysfunction can lead to proteinuria and glomerulosclerosis. Zonula occludens 1 (ZO-1) is a tight junction protein which connects slit diaphragm (SD) proteins to the actin cytoskeleton. Previous studies have shown that the expression of ZO-1 is decreased in chronic kidney disease (CKD). Thus, elucidation of the regulation mechanism of ZO-1 has considerable clinical importance. Triptolide (TP) has been reported to exert a strong antiproteinuric effect by inhibiting podocyte epithelial mesenchymal transition (EMT) and inflammatory response. However, the underlying mechanisms are still unclear. We found that TP upregulates ZO-1 expression and increases the fluorescence intensity of ZO-1 in a puromycin aminonucleoside (PAN)-induced podocyte injury model. Permeablity assay showed TP decreases podocyte permeability in PAN-treated podocyte. TP also upregulates the DNA demethylase TET2. Our results showed that treatment with the DNA methyltransferase inhibitors 5-azacytidine (5-AzaC) and RG108 significantly increased ZO-1 expression in PAN-treated podocytes. Methylated DNA immunoprecipitation (MeDIP) and hydroxymethylated DNA immunoprecipitation (hMeDIP) results showed that TP regulates the methylation status of the ZO-1 promoter. Knockdown of TET2 decreased ZO-1 expression and increased methylation of its promoter, resulting in the increase of podocyte permeability. Altogether, these results indicate that TP upregulates the expression of ZO-1 and decreases podocyte permeability through TET2-mediated 5 mC demethylation. These findings suggest that TP may alleviate podocyte permeability through TET2-mediated hydroxymethylation of ZO-1.
Collapse
Affiliation(s)
- Yue-Wen Tang
- Department of Nephrology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
| | - Meng-Ya Jiang
- Department of Nephrology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Jia-Wei Cao
- Department of Nephrology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Feng Wan
- Department of Nephrology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
| |
Collapse
|
3
|
Ji B, Liu J, Ma Y, Yin Y, Xu H, Shen Q, Yu J. Minnelide Markedly Reduces Proteinuria in Mice with Adriamycin Nephropathy by Protecting Against Podocyte Injury. Appl Biochem Biotechnol 2023; 195:7379-7396. [PMID: 37000351 PMCID: PMC10754751 DOI: 10.1007/s12010-023-04333-z] [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] [Accepted: 01/10/2023] [Indexed: 04/01/2023]
Abstract
Minimal change disease (MCD) is the most common cause of idiopathic nephrotic syndrome in children. The current major therapy is hormones for most steroid-sensitive patients. However, many patients have recurrent relapses of the disease and require long-term immunosuppression, leading to significant morbidity due to the side effects of the drugs. Therefore, better drugs need to be urgently explored to treat nephrotic syndrome while avoiding the side effects of drugs. Minnelide, a water-soluble prodrug of triptolide, has been proved to be effective in treating cancers in many clinical trials. This study aimed to investigate the therapeutic effect of minnelide in mice with adriamycin (ADR) nephropathy, its underlying protection mechanisms, and its reproductive toxicity. Minnelide was administered intraperitoneally to 6-8-week female mice with adriamycin nephropathy for 2 weeks, and the urine, blood, and kidney tissues were taken to analyze the therapeutic effect. In addition, we evaluated reproductive toxicity by measuring the levels of gonadal hormones and observing the histological changes in ovaries and testes. Primary mouse podocytes were exposed to puromycin (PAN) to damage the cytoskeleton and induce apoptosis, and then, triptolide was used to evaluate the therapeutic effect and underlying protection mechanisms in vitro. It was observed that minnelide dramatically alleviated proteinuria and apoptosis in mice with adriamycin nephropathy. In vitro, triptolide ameliorated puromycin-induced cytoskeletal rearrangement and apoptosis via reactive oxygen species-mediated mitochondrial pathway. In addition, minnelide caused no reproductive toxicity to male and female mice. The results suggested that minnelide might be a promising drug for nephrotic syndrome.
Collapse
Affiliation(s)
- Baowei Ji
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Junchao Liu
- Department of Traditional Chinese Medicine, Children's Hospital of Fudan University, Shanghai, China
| | - Yanli Ma
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Ye Yin
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Hong Xu
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China.
| | - Qian Shen
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Jian Yu
- Department of Traditional Chinese Medicine, Children's Hospital of Fudan University, Shanghai, China
| |
Collapse
|
4
|
Ji B, Liu J, Yin Y, Xu H, Shen Q, Yu J. Minnelide combined with anti-ANGPTL3-FLD monoclonal antibody completely protects mice with adriamycin nephropathy by promoting autophagy and inhibiting apoptosis. Cell Death Dis 2023; 14:601. [PMID: 37689694 PMCID: PMC10492865 DOI: 10.1038/s41419-023-06124-0] [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: 02/04/2023] [Revised: 08/24/2023] [Accepted: 08/30/2023] [Indexed: 09/11/2023]
Abstract
Minimal change disease (MCD) is the common type of nephrotic syndrome (NS) in children. Currently, there is an urgent need to explore new treatments because of the significant side effects of long-term use of glucocorticoids and immunosuppressive drugs and the failure to reduce proteinuria in some patients. Angiopoietin-like protein 3 (Angptl3) is an essential target of NS, and anti-ANGPTL3-FLD monoclonal antibody (mAb) significantly reduces proteinuria in mice with adriamycin nephropathy (AN). However, some proteinuria is persistent. Minnelide, a water-soluble prodrug of triptolide, has been used for the treatment of glomerular disease. Therefore, the present study aimed to investigate whether minnelide combined with mAb could further protect mice with AN and the underlying mechanisms. 8-week-old C57BL/6 female mice were injected with 25 mg/kg of Adriamycin (ADR) by tail vein to establish the AN model. A dose of 200 μg/kg of minnelide or 20 mg/kg of mAb was administered intraperitoneally for the treatment. In vitro, the podocytes were treated with 0.4 μg/mL of ADR for 24 h to induce podocyte injury, and pretreatment with 10 ng/mL of triptolide for 30 min or 100 ng/mL of mAb for 1 h before ADR exposure was used to treat. The results showed that minnelide combined with mAb almost completely ameliorates proteinuria and restores the ultrastructure of the podocytes in mice with AN. In addition, minnelide combined with mAb restores the distribution of Nephrin, Podocin, and CD2AP and reduces the level of inflammatory factors in mice with AN. Mechanistically, minnelide combined with mAb could further alleviate apoptosis and promote autophagy in mice with AN by inhibiting the mTOR signaling pathway. In vitro, triptolide combined with mAb increases the expression of Nephrin, Podocin, and CD2AP, alleviates apoptosis, and promotes autophagy. Overall, minnelide combined with mAb completely protects the mice with AN by promoting autophagy and inhibiting apoptosis.
Collapse
Affiliation(s)
- Baowei Ji
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Junchao Liu
- Department of Traditional Chinese Medicine, Children's Hospital of Fudan University, Shanghai, China
| | - Ye Yin
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Hong Xu
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China.
| | - Qian Shen
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Jian Yu
- Department of Traditional Chinese Medicine, Children's Hospital of Fudan University, Shanghai, China
| |
Collapse
|
5
|
Ponticelli C, Moroni G, Reggiani F. Autophagy and podocytopathy. Nephrol Dial Transplant 2023; 38:1931-1939. [PMID: 36708169 DOI: 10.1093/ndt/gfad024] [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: 11/19/2022] [Indexed: 01/29/2023] Open
Abstract
Autophagy is a complex process of lysosomal-dependent degradation of unwanted cellular material. In response to endogenous or exogenous stimuli, autophagy is induced and regulated by two kinases: the AMP activated kinase and the mammalian target of rapamycin (mTOR). Cells activated by Unc-51-like kinase 1 form a double membrane complex that sequesters the cargo (phagophore) and elongates producing spherical vesicles (autophagosomes). These reach and fuse with lysosomes, which degrade the cargo (autolysosomes). The resulting macromolecules are released back and recycled in the cytosol for reuse. In the podocyte, autophagy is a homeostatic mechanism that contributes to the formation and preservation of the morphological and functional integrity of actin cytoskeleton. Podocytes, fenestrated endothelial cells and glomerular basement membrane compose the glomerular filtration barrier. Podocyte damage may cause dysfunction of the glomerular barrier, proteinuria and glomerulosclerosis in different glomerular diseases and particularly in so-called podocytopathies, namely minimal change disease and focal segmental glomerulosclerosis. Several drugs and molecules may activate autophagic function in murine models. Among them, aldosterone inhibitors, mineralocorticoid inhibitors and vitamin D3 were proven to protect podocyte from injury and reduce proteinuria in clinical studies. However, no clinical trial with autophagy regulators in podocytopathies has been conducted. Caution is needed with other autophagy activators, such as mTOR inhibitors and metformin, because of potential adverse events.
Collapse
Affiliation(s)
| | - Gabriella Moroni
- Nephrology and Dialysis Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Francesco Reggiani
- Nephrology and Dialysis Unit, IRCCS Humanitas Research Hospital, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| |
Collapse
|
6
|
Huang W, Huang X, Yang L, Han W, Zhu Z, Wang Y, Chen R. Network Pharmacology and Molecular Docking Analysis Exploring the Mechanism of Tripterygium wilfordii in the Treatment of Oral Lichen Planus. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1448. [PMID: 37629739 PMCID: PMC10456824 DOI: 10.3390/medicina59081448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/05/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023]
Abstract
Background: Oral lichen planus (OLP) is an infrequent autoimmune disease of the oral mucosa, which affects up to 2% of the world population. An investigation of Tripterygium wilfordii's mechanism of action for treating OLP was conducted, and a theoretical basis was provided for improving current treatment regimens. Materials and Methods: We used a network pharmacological approach to gain insight into the molecular mechanism of Tripterygium wilfordii in the treatment of OLP. Then, potential protein targets between Tripterygium wilfordii and OLP were analyzed through a drug-target network. This was followed by KEGG enrichment analysis and Gene Ontology (GO) classification. Finally, for molecular docking, AutoDock Vina was used. Results: A protein-protein interaction (PPI) network was constructed by analyzing the common targets of a total of 51 wilfordii-OLP interactions from different databases. The GO and KEGG enrichment analyses showed that the treatment of OLP with Tripterygium wilfordii mainly involves lipopolysaccharide response, bacterial molecular response, positive regulation of cytokine production, and leukocyte proliferation, and the signaling pathways mainly include the AGE-RAGE, NF-κB, Toll-like receptor, IL-17, HIF-1, and TNF signaling pathways. The molecular docking results showed that β-sitosterol, kaempferol, hederagenin, and triptolide have a higher affinity for AKT1, TNF, CASP3, and PTGS2, respectively. Based on the CytoNCA analysis of common targets, 19 key targets, including AKT1, TNF, VEGFA, STAT3, CXCL8, PTGS2, TP53, and CASP3, and their connections were identified. Conclusions: Preliminarily, this study reveals that Tripterygium wilfordii interferes with OLP by interacting with multiple targets through multiple accesses, as validated by molecular docking.
Collapse
Affiliation(s)
| | | | | | | | | | - Yuanyin Wang
- College & Hospital of Stomatology, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, No. 81, Meishan Road, Shushan District, Hefei 230032, China; (W.H.); (X.H.); (L.Y.); (W.H.); (Z.Z.)
| | - Ran Chen
- College & Hospital of Stomatology, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, No. 81, Meishan Road, Shushan District, Hefei 230032, China; (W.H.); (X.H.); (L.Y.); (W.H.); (Z.Z.)
| |
Collapse
|
7
|
Wang H, Liu H, Xue X, Wang Q, Yuan J. Efficacy and safety of Tripterygium wilfordii multiglucoside for idiopathic membranous nephropathy: a systematic review with bayesian meta-analysis. Front Pharmacol 2023; 14:1183499. [PMID: 37608889 PMCID: PMC10442163 DOI: 10.3389/fphar.2023.1183499] [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: 03/10/2023] [Accepted: 07/24/2023] [Indexed: 08/24/2023] Open
Abstract
Background: Currently, the optimal therapy plan for idiopathic membranous nephropathy (IMN) remains controversial as there has been no comprehensive and systematic comparison of therapy plans for IMN. Therefore, in this study, a Bayesian meta-analysis was used to systematically evaluate the clinical efficacy and safety of various intervention plans involving traditional Chinese medicine TWM in the treatment of IMN. Methods: An electronic search in 7 databases was conducted from their inception to August 2022 for all published randomized controlled trials (RCTs) of various intervention plans for IMN. Network meta-analysis (NMA) was performed by using software R, and the surface under the cumulative ranking area (SUCRA) probability curve was plotted for each outcome indicator to rank the efficacy and safety of different intervention plans. Results: A total of 30 RCTs were included, involving 13 interventions. The results showed that (1) in terms of total remission (TR), ① GC + CNI + TWM was the best effective among all plans, and the addition and subtraction plan of CNI + TWM was the best effective for IMN; ② All plans involving TWM were more effective than GG; ③ Among monotherapy plans for IMN, TWM was more effective distinctly than GC, while TWM and CNI were similarly effective; ④ Among multidrug therapy plans for IMN, the addition of TWM to previously established therapy plans made the original plans more effective; ⑤The efficacy of combining TWM with other plans was superior to that of TWM alone. (2) In terms of lowering 24 h-UTP, GC + TWM was the best effective and more effective than TWM. (3) In terms of safety, there was no statistically significant difference between all groups. However, CNI + TWM was the safest. No serious adverse events (AEs) occurred in all the included studies. Conclusion: The addition of TWM may be beneficial to patients with IMN. It may enhance the efficacy of previously established treatment protocols without leading to additional safety risks. In particular, GC + CNI + TWM, GC + TWM, and CNI + TWM with better efficacy and higher safety can be preferred in clinical decision-making as the therapy plans for IMN.
Collapse
Affiliation(s)
- Hongyun Wang
- Hubei University of Chinese Medicine, Wuhan, China
| | - Hongyan Liu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xue Xue
- Hubei University of Chinese Medicine, Wuhan, China
| | - Qiong Wang
- Hubei University of Chinese Medicine, Wuhan, China
| | - Jun Yuan
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| |
Collapse
|
8
|
Sa R, Guo Z, Zhao G, Zhao D, Guo H, Chen G, Zhu L. Can Kunxian Capsule, a Novel Tripterygium Preparation be Used as an Adjuvant Treatment of Early Recurrent Focal Segmental Glomerular Sclerosis After Renal Transplantation? A Case Report. Transplant Proc 2023; 55:649-653. [PMID: 36948963 DOI: 10.1016/j.transproceed.2022.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/28/2022] [Accepted: 12/19/2022] [Indexed: 03/24/2023]
Abstract
Focal segmental glomerular sclerosis (FSGS) tends to recur after kidney transplantation, particularly when genetic testing is negative. Once the recurrence happens, the renal graft function can rapidly become impaired, following a massive urine protein loss. Despite intensive plasmapheresis and high-dose rituximab treatment, the complete remission rate remains below 50%. The Kunxian capsule, representing a new generation of tripterygium preparation, has shown promising results in controlling proteinuria in patients with IgA nephropathy. It is unclear whether Kunxian capsule treatment would also produce a favorable response in cases of FSGS recurrence. Here we report favorable results with this approach in a patient with early recurrent FSGS after kidney transplantation; we treated this patient successfully with a Kunxian capsule, a low dose of rituximab (200 mg), and reduced sessions of plasmapheresis. Complete remission, with a 90% reduction in total urine protein (0.81 g/24 h vs 8.3 g/24 h), was achieved within 2 weeks post-treatment. Of interest, the complete remission state in this patient has been maintained over 20 months with continuous administration of Kunxian capsules after the cessation of plasmapheresis. The potential mechanisms involved here include direct podocyte protection and the anti-inflammatory and immunosuppressive properties of triptolide in the Kunxian capsule. Our case may offer a new reference option for treating recurrent FSGS in the future.
Collapse
Affiliation(s)
- Rula Sa
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhiliang Guo
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guangyuan Zhao
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; NHC Key Laboratory of Organ Transplantation, Ministry of Education, Chinese Academy of Medical Sciences, Wuhan, China
| | - Daqiang Zhao
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; NHC Key Laboratory of Organ Transplantation, Ministry of Education, Chinese Academy of Medical Sciences, Wuhan, China
| | - Hui Guo
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; NHC Key Laboratory of Organ Transplantation, Ministry of Education, Chinese Academy of Medical Sciences, Wuhan, China
| | - Gang Chen
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; NHC Key Laboratory of Organ Transplantation, Ministry of Education, Chinese Academy of Medical Sciences, Wuhan, China
| | - Lan Zhu
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; NHC Key Laboratory of Organ Transplantation, Ministry of Education, Chinese Academy of Medical Sciences, Wuhan, China.
| |
Collapse
|
9
|
Susa K, Kobayashi K, Galichon P, Matsumoto T, Tamura A, Hiratsuka K, Gupta NR, Yazdi IK, Bonventre JV, Morizane R. ATP/ADP biosensor organoids for drug nephrotoxicity assessment. Front Cell Dev Biol 2023; 11:1138504. [PMID: 36936695 PMCID: PMC10017499 DOI: 10.3389/fcell.2023.1138504] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Drug nephrotoxicity is a common healthcare problem in hospitalized patients and a major limitation during drug development. Multi-segmented kidney organoids derived from human pluripotent stem cells may complement traditional cell culture and animal experiments for nephrotoxicity assessment. Here we evaluate the capability of kidney organoids to investigate drug toxicity in vitro. Kidney organoids express renal drug transporters, OAT1, OAT3, and OCT2, while a human proximal tubular cell line shows the absence of OAT1 and OAT3. Tenofovir and aristolochic acid (AA) induce proximal tubular injury in organoids which is ameliorated by an OAT inhibitor, probenecid, without damage to podocytes. Similarly, cisplatin causes proximal tubular damage that can be relieved by an OCT inhibitor, cimetidine, collectively suggesting the presence of functional OATs and OCTs in organoid proximal tubules. Puromycin aminonucleoside (PAN) induced segment-specific injury in glomerular podocytes in kidney organoids in the absence of tubular injury. Reporter organoids were generated with an ATP/ADP biosensor, which may be applicable to high-throughput screening in the future. In conclusion, the kidney organoid is a useful tool for toxicity assessment in the multicellular context and may contribute to nephrotoxicity assessment during drug development.
Collapse
Affiliation(s)
- Koichiro Susa
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Department of Nephrology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kenichi Kobayashi
- Harvard Medical School, Boston, MA, United States
- Massachusetts General Hospital, Boston, MA, United States
| | - Pierre Galichon
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Takuya Matsumoto
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, United States
| | - Akitoshi Tamura
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
| | - Ken Hiratsuka
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Massachusetts General Hospital, Boston, MA, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, United States
| | - Navin R. Gupta
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Massachusetts General Hospital, Boston, MA, United States
| | - Iman K. Yazdi
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, United States
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard-MIT Division of Health Sciences &Technology, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Joseph V. Bonventre
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard-MIT Division of Health Sciences &Technology, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Ryuji Morizane
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Massachusetts General Hospital, Boston, MA, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, United States
- Harvard Stem Cell Institute, Cambridge, MA, United States
| |
Collapse
|
10
|
Jiang S, Wan F, Lian H, Lu Z, Li X, Cao D, Jiang Y, Li J. Friend or foe? The dual role of triptolide in the liver, kidney, and heart. Biomed Pharmacother 2023; 161:114470. [PMID: 36868013 DOI: 10.1016/j.biopha.2023.114470] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 03/05/2023] Open
Abstract
Triptolide, a controversial natural compound due to its significant pharmacological activities and multiorgan toxicity, has gained much attention since it was isolated from the traditional Chinese herb Tripterygium wilfordii Hook F. However, in addition to its severe toxicity, triptolide also presents powerful therapeutic potency in the same organs, such as the liver, kidney, and heart, which corresponds to the Chinese medicine theory of You Gu Wu Yun (anti-fire with fire) and deeply interested us. To determine the possible mechanisms involved in the dual role of triptolide, we reviewed related articles about the application of triptolide in both physiological and pathological conditions. Inflammation and oxidative stress are the two main ways triptolide exerts different roles, and the cross-talk between NF-κB and Nrf2 may be one of the mechanisms responsible for the dual role of triptolide and may represent the scientific connotation of You Gu Wu Yun. For the first time, we present a review of the dual role of triptolide in the same organ and propose the possible scientific connotation of the Chinese medicine theory of You Gu Wu Yun, hoping to promote the safe and efficient use of triptolide and other controversial medicines.
Collapse
Affiliation(s)
- Shiyuan Jiang
- Department of Histology and Embryology, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Feng Wan
- Department of Anatomy, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Hui Lian
- Department of Histology and Embryology, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhihao Lu
- Department of Histology and Embryology, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Xueming Li
- Department of Histology and Embryology, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Dan Cao
- Department of Histology and Embryology, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yangyu Jiang
- Department of Histology and Embryology, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Jian Li
- Department of Histology and Embryology, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China.
| |
Collapse
|
11
|
Minnelide combined with Angptl3 knockout completely protects mice with adriamycin nephropathy via suppression of TGF-β1-Smad2 and p53 pathways. Int Immunopharmacol 2023; 115:109656. [PMID: 36608441 DOI: 10.1016/j.intimp.2022.109656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/26/2022] [Accepted: 12/26/2022] [Indexed: 01/05/2023]
Abstract
Minimal change disease (MCD) is the common type of nephrotic syndrome in children. There is an urgent need to explore new treatment methods as current treatments have many drawbacks and cause significant side effects. Our group found that Angiopoietin-like protein 3 (Angptl3) is closely related to renal disease and Angptl3 knockout significantly alleviated proteinuria in mice with adriamycin nephropathy (AN), however, some proteinuria was still present. Minnelide is a water-soluble prodrug of triptolide which has been used for the treatment of glomerular diseases. Therefore, this study aimed to investigate whether minnelide, combined with Angptl3 knockout, could completely protect mice with AN and its mechanism. AN was induced in B6;129S5 female mice by tail vein injection of 25 mg/kg of Adriamycin (ADR), and treatment with 200 ug/kg/d of minnelide. The results showed that minnelide combined with Angptl3 knockout completely reduced proteinuria and restored the foot processes in mice with AN. Moreover, in Angptl3 knockout mice with AN, minnelide restored the distribution of nephrin, podocin and cd2ap and reduced inflammatory factors (Tumor necrosis factor alpha (TNF-α), Interleukin-6 (IL-6) and Interleukin-1β (IL-1β)). Through RNA sequencing and related experiments, we found minnelide could ameliorate fibrosis and apoptosis by inhibiting TGF-β1-Smad2 and p53 pathways in Angptl3 knockout mice with AN, respectively. In Angptl3 knockout primary podocytes, triptolide alleviates ADR-induced decreases in nephrin, podocin and cd2ap, upregulation of Bax and downregulation of Bcl-2. Overall, our study shows that minnelide combined with Angptl3 knockout completely protects mice with AN by inhibiting the TGF-β1-smad2 and p53 pathways.
Collapse
|
12
|
Teo WY, Chu SWF, Chow LY, Yeam CT, Low LL, Quah JHM, Foo M, Seng JJB. Role of Alternative Medical Systems in Adult Chronic Kidney Disease Patients: A Systematic Review of Literature. Cureus 2022; 14:e32874. [PMID: 36694496 PMCID: PMC9867890 DOI: 10.7759/cureus.32874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2022] [Indexed: 12/24/2022] Open
Abstract
There is a growing interest in the use of alternative medical systems (AMS), such as traditional Chinese medicine (TCM), ayurveda, homeopathy, and naturopathy, among chronic kidney disease patients. This review summarizes the efficacy and safety of AMS interventions in chronic kidney disease (CKD) patients. A systematic review was conducted in MEDLINE, Embase, Scopus, CINAHL, CENTRAL, and PsycINFO in line with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Synthesis without meta-analysis (SWiM) guidelines. Randomized controlled trials (RCTs) which evaluated the use of AMS among adult CKD patients were included. The efficacy of each AMS was assessed based on improvement in biochemical markers or reduction in symptom severity scores. All adverse reactions were recorded. Of the 14,583 articles retrieved, 33 RCTs were included. TCM (n=20) and ayurveda (n=6) were the most well-studied. Majority of studies (66.7%) had a sample size <100. Common indications evaluated included improvement in renal function (n=12), proteinuria (n=5), and uremic pruritus (n=5). Among TCM, acupuncture and syndromes-based TCM granules formulation were shown to improve estimated glomerular filtration rate (eGFR) by 5.1-15.5% and 7.07-8.12% respectively. Acupuncture reduced uremic pruritus symptoms by 54.7-60.2% while Huangkui, Shenqi granules, and Tripterygium wilfordii Hook F reduced proteinuria by 18.6-50.7%, 61.8%, and 32.1% respectively. For Ayurveda, camel milk and Nigella sativa oil improved eGFR by 16.9% and 86.8%, respectively, while capsaicin reduced pruritus scores by 84.3%. Homeopathic verum medication reduced pruritus scores by 29.2-41.5%. Nausea was the most common adverse effect reported with alpha-keto amino acids (0.07%), Nigella sativa oil (7.04%), and silymarin (10%). TCM and ayurveda were more well-studied AMS therapies that demonstrated efficacy in CKD patients. RCTs with larger sample sizes are needed to ascertain the efficacy and safety of promising AMS.
Collapse
Affiliation(s)
- Wei Yi Teo
- Biological Sciences, National University of Singapore, Singapore, SGP
| | - Shu Wen Felicia Chu
- Anesthesiology and Perioperative Medicine, Singapore General Hospital, Singapore, SGP
| | - Li Yue Chow
- Accounting, Singapore Management University, Singapore, SGP
| | | | - Lian Leng Low
- Family Medicine and Continuing Care, Singapore General Hospital, Singapore, SGP
| | | | - Marjorie Foo
- Renal Medicine, Singapore General Hospital, Singapore, SGP
| | - Jun Jie Benjamin Seng
- Family Medicine, Singapore Health Services, Singapore, SGP
- Medicine, Ministry of Health Holdings, Singapore, SGP
| |
Collapse
|
13
|
Zhang PN, Tang JY, Yang KZ, Zheng QY, Dong ZC, Geng YL, Liu YN, Liu WJ. Integrated Network Pharmacology Analysis and Experimental Validation to Investigate the Molecular Mechanism of Triptolide in the Treatment of Membranous Nephropathy. Drug Des Devel Ther 2022; 16:4061-4076. [PMID: 36448035 PMCID: PMC9701458 DOI: 10.2147/dddt.s386031] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/11/2022] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Triptolide, a major active ingredient isolated from Tripterygium wilfordii Hook f., is effective in the treatment of membranous nephropathy (MN); however, its pharmacological mechanism of action has not yet been clarified. We applied an approach that integrated network pharmacology and experimental validation to systemically reveal the molecular mechanism of triptolide in the treatment of MN. METHODS First, potential targets of triptolide and the MN-related targets were collected from publicly available database. Then, based on a protein-protein interaction network as well as GO and KEGG pathway enrichment analyses, we constructed target-pathway networks to unravel therapeutic targets and pathways. Moreover, molecular docking was applied to validate the interactions between the triptolide and hub targets. Finally, we induced passive Heymann nephritis (PHN) rat models and validated the possible molecular mechanisms of triptolide against MN. RESULTS The network pharmacology results showed that 118 intersected targets were identified for triptolide against MN, including mTOR, STAT3, CASP3, EGFR and AKT1. Based on enrichment analysis, signaling pathways such as PI3K/AKT, MAKP, Ras and Rap1 were involved in triptolide treatment of MN. Furthermore, molecular docking confirmed that triptolide could bind with high affinity to the PIK3R1, AKT1 and mTOR, respectively. Then, in vivo experiments indicated that triptolide can reduce 24 h urine protein (P < 0.01) and protect against renal damage in PHN. Serum albumin level was significantly increased and total cholesterol, triglycerides, and low-density lipoprotein levels were decreased by triptolide (P < 0.05). Compared with PHN group, triptolide treatment regulated the PI3K/AKT/mTOR pathway according to Western blot analyses. CONCLUSION Triptolide could exert antiproteinuric and renoprotective effects in PHN. The therapeutic mechanism of triptolide may be associated with the regulation of PI3K/AKT/mTOR signaling pathway. This study demonstrates the pharmacological mechanism of triptolide in the treatment of MN and provides scientific evidence for basic and clinical research.
Collapse
Affiliation(s)
- Ping Na Zhang
- Renal Research Institution of Beijing University of Chinese Medicine, and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Jing Yi Tang
- Renal Research Institution of Beijing University of Chinese Medicine, and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Ke Zhen Yang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Qi Yan Zheng
- Renal Research Institution of Beijing University of Chinese Medicine, and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Zhao Cheng Dong
- Renal Research Institution of Beijing University of Chinese Medicine, and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Yun Ling Geng
- Renal Research Institution of Beijing University of Chinese Medicine, and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Yu Ning Liu
- Renal Research Institution of Beijing University of Chinese Medicine, and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Wei Jing Liu
- Renal Research Institution of Beijing University of Chinese Medicine, and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| |
Collapse
|
14
|
Lv Q, Han X, Ni J, Ma Q, Dai R, Liu J, Liu J, Zhai Y, Shen Q, Sun L, Liu H, Rao J, Xu H. Anti-ANGPTL3-FLD monoclonal antibody treatment ameliorates podocyte lesions through attenuating mitochondrial damage. Cell Death Dis 2022; 13:867. [PMID: 36229446 PMCID: PMC9562403 DOI: 10.1038/s41419-022-05313-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022]
Abstract
Proteinuria, an indication of kidney disease, is caused by the malfunction of podocytes, which play a key role in maintaining glomerular filtration. Angiopoietin-like 3 (ANGPTL3) has been documented to have a cell-autonomous involvement in podocytes, and deletion of Angptl3 in podocytes reduced proteinuria in adriamycin-induced nephropathy. Here, we developed a monoclonal antibody (mAb) against ANGPTL3 to investigate its effects on podocyte injury in an ADR nephropathy mouse model and puromycin (PAN) induced podocyte damage in vitro. The mAb against the human ANGPTL3-FLD sequence (5E5F6) inhibited the binding of ANGPTL3-FLD to integrin β3. Treatment with the 5E5F6 mAb in ADR nephropathy mice mitigated proteinuria and led to a significant decline in podocyte apoptosis, reactive oxygen species (ROS) generation and mitochondrial fragmentation. In PAN-induced podocyte damage in vitro, the 5E5F6 mAb blocked the ANPGPLT3-mediated activation of integrin αvβ3 and Rac1, which regulated the mitochondrial homeostasis. Altogether, anti-ANGPLT3-FLD mAb attenuates proteinuria and podocyte lesions in ADR mice models, as well as PAN-induced podocyte damage, in part through regulating mitochondrial functions. Our study provides a therapeutic approach for targeting ANGPTL3 in proteinuric kidney disease.
Collapse
Affiliation(s)
- Qianying Lv
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Xinli Han
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Jiajia Ni
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Qianqian Ma
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Rufeng Dai
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Jiaojiao Liu
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Jialu Liu
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Yihui Zhai
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Qian Shen
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Li Sun
- Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China ,grid.411333.70000 0004 0407 2968Department of Rheumatology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China
| | - Haimei Liu
- Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China ,grid.411333.70000 0004 0407 2968Department of Rheumatology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China
| | - Jia Rao
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Hong Xu
- grid.411333.70000 0004 0407 2968Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of CHINA, Shanghai, China ,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| |
Collapse
|
15
|
Zhao L, Lan Z, Peng L, Wan L, Liu D, Tan X, Tang C, Chen G, Liu H. Triptolide promotes autophagy to inhibit mesangial cell proliferation in IgA nephropathy via the CARD9/p38 MAPK pathway. Cell Prolif 2022; 55:e13278. [PMID: 35733381 PMCID: PMC9436901 DOI: 10.1111/cpr.13278] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/04/2022] [Accepted: 05/23/2022] [Indexed: 01/18/2023] Open
Abstract
Background Mesangial cell proliferation is the most basic pathological feature of immunoglobulin A nephropathy (IgAN); however, the specific underlying mechanism and an appropriate therapeutic strategy are yet to be unearthed. This study aimed to investigate the therapeutic effect of triptolide (TP) on IgAN and the mechanism by which TP regulates autophagy and proliferation of mesangial cells through the CARD9/p38 MAPK pathway. Methods We established a TP‐treated IgAN mouse model and produced IgA1‐induced human mesangial cells (HMC) and divided them into control, TP, IgAN, and IgAN+TP groups. The levels of mesangial cell proliferation (PCNA, cyclin D1, cell viability, and cell cycle) and autophagy (P62, LC3 II, and autophagy flux rate) were measured, with the autophagy inhibitor 3‐Methyladenine used to explore the relationship between autophagy and proliferation. We observed CARD9 expression in renal biopsies from patients and analyzed its clinical significance. CARD9 siRNA and overexpression plasmids were constructed to investigate the changes in mesangial cell proliferation and autophagy as well as the expression of CARD9 and p‐p38 MAPK/p38 MAPK following TP treatment. Results Administering TP was safe and effectively alleviated mesangial cell proliferation in IgAN mice. Moreover, TP inhibited IgA1‐induced HMC proliferation by promoting autophagy. The high expression of CARD9 in IgAN patients was positively correlated with the severity of HMC proliferation. CARD9/p38 MAPK was involved in the regulation of HMC autophagy and proliferation, and TP promoted autophagy to inhibit HMC proliferation by downregulating the CARD9/p38 MAPK pathway in IgAN. Conclusion TP promotes autophagy to inhibit mesangial cell proliferation in IgAN via the CARD9/p38 MAPK pathway.
Collapse
Affiliation(s)
- Lu Zhao
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Zhixin Lan
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Liang Peng
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Lili Wan
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Di Liu
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Xia Tan
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Chengyuan Tang
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Guochun Chen
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Hong Liu
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| |
Collapse
|
16
|
Le WB, Shi JS, Gong SW, Yang F. Effectiveness and safety of KunXian capsule for the treatment of IgA nephropathy. BMC Nephrol 2022; 23:179. [PMID: 35538439 PMCID: PMC9088128 DOI: 10.1186/s12882-022-02814-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 04/11/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Tripterygium Wilfordii Hook F (TwHF) preparation has been widely used in the treatments of IgA nephropathy (IgAN) in China. However, the effectiveness and safety of the new generation of TwHF preparation, KuxXian capsule, on the treatment of IgAN remains unknown. METHODS Here, we retrospectively describe our experience treating 55 consecutive IgAN patients with KunXian. We defined complete remission as proteinuria < 0.5 g/24 h and partial remission as proteinuria < 1 g/24 h, each also having > 50% reduction in proteinuria from baseline. RESULTS At first follow-up after KunXian treatment (5.7 weeks, IQR 4.7-7.9), all but two patients (96%) showed a reduction in proteinuria. The overall median proteinuria decreased from 2.23 g/day at baseline to 0.94 g/day (P < 0.001) at the first follow-up. During a median follow-up of 28 weeks after KunXian administration, 25(45.5%) patients achieved complete remission, 34 (61.8%) patients achieved complete/partial remission. Of the 12 patients discontinued KunXian treatment during the follow-up, the median proteinuria was increased from 0.97 g/24 h to 2.74 g/24 h after a median of 10.9 weeks (P = 0.004). Multivariable Cox models showed that female, treatment switching from previous generation of TwHF preparation, lower initial KunXian dosage, and higher proteinuria at baseline were independently associated proteinuria remission. Of the 20 pre-menopausal females, 12 of them developed oligomenorrhea or menstrual irregularity and ten of them developed amenorrhea. CONCLUSION KunXian is effectiveness and safety for the treatment of IgA nephropathy. Woman of childbearing age to be informed of the risk of ovarian failure after being treated with TwHF preparations.
Collapse
Affiliation(s)
- Wei-Bo Le
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, China.
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210018, China.
| | - Jin-Song Shi
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, China
| | - Si-Wen Gong
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Nanjing, China
| | - Fan Yang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, China
| |
Collapse
|
17
|
Shi H, Hou Y, Su X, Qiao J, Wang Q, Guo X, Gao Z, Wang L. Mechanism of action of Tripterygium wilfordii for treatment of idiopathic membranous nephropathy based on network pharmacology. Ren Fail 2022; 44:116-125. [PMID: 35172688 PMCID: PMC8856020 DOI: 10.1080/0886022x.2021.2024850] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background Although thunder god vine (Tripterygium wilfordii) has been widely used for treatment of idiopathic membranous nephropathy (IMN), the pharmacological mechanisms underlying its effects are still unclear. This study investigated potential therapeutic targets and the pharmacological mechanism of T. wilfordii for the treatment of IMN based on network pharmacology. Methods Active components of T. wilfordii were obtained from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform. IMN-associated target genes were collected from the GeneCards, DisGeNET, and OMIM databases. VENNY 2.1 was used to identify the overlapping genes between active compounds of T. wilfordii and IMN target genes. The STRING database and Cytoscape 3.7.2 software were used to analyze interactions among overlapping genes. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses of the targets were performed using Rx64 4.0.2 software, colorspace, stringi, DOSE, clusterProfiler, and enrichplot packages. Results A total of 153 compound-related genes and 1485 IMN-related genes were obtained, and 45 core genes that overlapped between both categories were identified. The protein–protein interaction network and MCODE results indicated that the targets TP53, MAPK8, MAPK14, STAT3, IFNG, ICAM1, IL4, TGFB1, PPARG, and MMP1 play important roles in the treatment of T. wilfordii on IMN. Enrichment analysis showed that the main pathways of targets were the AGE signaling pathway, IL-17 signaling pathway, TNF signaling pathway, and Toll-like receptor signaling pathway. Conclusion This study revealed potential multi-component and multi-target mechanisms of T. wilfordii for the treatment of IMN based on network pharmacological, and provided a scientific basis for further experimental studies.
Collapse
Affiliation(s)
- Honghong Shi
- Division of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yanjuan Hou
- Division of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xiaole Su
- Division of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jun Qiao
- Division of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Qian Wang
- Division of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xiaojiao Guo
- Division of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhihong Gao
- Division of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Lihua Wang
- Division of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| |
Collapse
|
18
|
Ren L, Wan R, Chen Z, Huo L, Zhu M, Yang Y, Chen Q, Zhang X, Wang X. Triptolide Alleviates Podocyte Epithelial-Mesenchymal Transition via Kindlin-2 and EMT-Related TGF-β/Smad Signaling Pathway in Diabetic Kidney Disease. Appl Biochem Biotechnol 2022; 194:1000-1012. [PMID: 34596829 DOI: 10.1007/s12010-021-03661-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/03/2021] [Indexed: 11/25/2022]
Abstract
Diabetes-induced chronic kidney diseases are widespread and decrease the quality of life for millions of affected individuals in China. To date, no therapies effectively alleviate these conditions. Triptolide, a traditionally used Chinese medicine, has shown promise in treating renal diseases. Here, the study aimed to decipher the exact mechanism by which it functions. It was hypothesized that triptolide might prevent the epithelial-mesenchymal transition (EMT) of podocytes by activating the kindlin-2 and TGF-β/Smad pathways. Triptolide or telmisartan was intragastrically administered to 9-week-old db/db and dm/dm mice with diabetic nephropathy (DN) for 12 weeks. In addition, biochemical parameters and body weight were detected. WT-1, nephrin, podocin, E-cadherin, and α-SMA were determined by immunohistochemistry in the renal tissues of treated mice. Protein and mRNA expression of podocyte EMT markers, kindlin-2 and TGF-β/Smad, were analyzed to elucidate the underlying mechanism. It was observed that triptolide treatment relieved structural injuries and functional variations in diabetic mice. It also increased the protein and mRNA levels of nephrin, podocin, and E-cadherin and decreased the expression of α-SMA in diabetic mice. The protein and mRNA expressions of TGF-β1, p-SMAD3, and kindlin-2 decreased in diabetic kidneys following triptolide treatment. The findings demonstrated that triptolide might protect podocytes during DN by inhibiting podocyte EMT through inactivation of kindlin-2, combined with the downregulation of P-SMAD3 in the TGF-β/Smad signaling pathway.
Collapse
Affiliation(s)
- Lingyan Ren
- Department of Nephrology, the First Affiliated Hospital of Huzhou Teachers College, the First People's Hospital of Huzhou, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Renrui Wan
- Department of General Surgery, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Zheng Chen
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, School of Medicine, Huzhou University, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Lixia Huo
- Department of Central Laboratory, the First Affiliated Hospital of Huzhou Teachers College, the First People's Hospital of Huzhou, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Ming Zhu
- Department of Nephrology, the First Affiliated Hospital of Huzhou Teachers College, the First People's Hospital of Huzhou, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Yong Yang
- Department of Nephrology, the First Affiliated Hospital of Huzhou Teachers College, the First People's Hospital of Huzhou, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Qi Chen
- Department of Nephrology, the First Affiliated Hospital of Huzhou Teachers College, the First People's Hospital of Huzhou, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Xiaolan Zhang
- Department of Pathology, the First Affiliated Hospital of Huzhou Teachers College, the First People's Hospital of Huzhou, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Xiaoyi Wang
- Department of Nephrology, the First Affiliated Hospital of Huzhou Teachers College, the First People's Hospital of Huzhou, Huzhou, Zhejiang, 313000, People's Republic of China.
| |
Collapse
|
19
|
Jin D, Yu M, Li X, Wang X. Efficacy of Tripterygium wilfordii Hook F on animal model of Diabetic Kidney Diseases: A systematic review and meta-analysis. JOURNAL OF ETHNOPHARMACOLOGY 2021; 281:114536. [PMID: 34419607 DOI: 10.1016/j.jep.2021.114536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 08/06/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tripterygium wilfordii Hook F (TwHF) has been clinically applied in the treatment of Diabetic Kidney Diseases (DKD). A large number of animal experiments focused on the TwHF treatment of DKD were conducted every year, but the evidence for these preclinical studies is unclear. AIM OF THE STUDY This study aims to evaluate the efficacy of TwHF on diabetic nephropathy through a stematic reviews and meta-analysis of animal models, and whether it has an effect on improving kidney pathology, renal function indicators and blood sugar levels, it also summarizes the use of TwHF for treatment the underlying mechanism of DKD. MATERIALS AND METHODS We systematically searched studies from PubMed, Web of Science, Embase, China National Knowledge Infrastructure (CNKI), China Science and Technology Journal Database (VIP), and Wanfang database from inception to May 2020. Chinese studies from the list of Chinese Core Journals would be included. SYRCLE's risk of bias tool for animal studies was applied to assess the methodological quality of studies. A meta-analysis was performed by using RevMan 5.3. RESULTS Out of 429 records identified in the initial search, 32 studies were selected. The results indicated that, compared with control group, TwHF treatment improved 24 h urine protein (24 h-UP) level (SMD - 4.21, 95% CI - 5.38 to - 3.04, P < 0.001), serum creatinine (Scr) (MD - 14.97, 95% CI - 20.42 to - 9.53, P < 0.001), blood urea nitrogen (BUN) (MD - 4.07, 95% CI - 5.49 to - 2.66, P < 0.001), blood glucose (Glu) (MD - 2.40, 95% CI - 4.304 to - 0.49, P = 0.01), Triglyceride (TG) (MD - 1.57, 95% CI - 2.06 to - 1.08, P < 0.001), and Cholesterol (TC) (MD - 1.49, 95% CI - 2.23 to - 0.75 P < 0.001); and increased the level of albumin (Alb) (MD 3.40, 95% CI 1.69 to 5.11, P < 0.001) and weight (MD 30.89, 95% CI 24.35 to 37.42, P < 0.001). There were no statistical difference on Alanine aminotransferase (ALT) (MD 3.00, 95% CI - 7.80 to 13.81, P = 0.59) and Aspartate aminotransferase (AST) (MD 0.77, 95% CI -15.05 to 16.60, P = 0.92) after TwHF. Meta regression analysis showed that the DKD model induced by different methods (type I/II), the dose of Tripterygium wilfordii and the intervention time were not the reasons for the heterogeneity of 24 h-UP, Alb, Glu, Scr, and BUN (p > 0.05). CONCLUSIONS TwHF is an effective and safe to treat DKD, which can protect the kidneys through anti-inflammation, improving oxidative stress and podocyte damage, and inhibiting mesangial cell proliferation and extracellular matrix proliferation.
Collapse
Affiliation(s)
- Di Jin
- College of Chinese Medicine, Changchun University of Chinese Medicine, 130117, China
| | - Miao Yu
- Endocrinology Department, First Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, 130021, China
| | - Xiangyan Li
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China.
| | - Xiuge Wang
- Endocrinology Department, First Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, 130021, China.
| |
Collapse
|
20
|
Liu P, Zhang J, Wang Y, Shen Z, Wang C, Chen DQ, Qiu X. The Active Compounds and Therapeutic Target of Tripterygium wilfordii Hook. f. in Attenuating Proteinuria in Diabetic Nephropathy: A Review. Front Med (Lausanne) 2021; 8:747922. [PMID: 34621768 PMCID: PMC8490618 DOI: 10.3389/fmed.2021.747922] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 08/25/2021] [Indexed: 12/25/2022] Open
Abstract
Tripterygium wilfordii Hook. f. (TWHF) is a traditional Chinese herbal medicine and widely used to treat diabetic kidney disease in China. Emerging evidences have revealed its ability to attenuate diabetic nephropathy (DN). Tripterygium wilfordii polyglycosides (TWPs), triptolide (TP), and celastrol are predominantly active compounds isolated from TWHF. The effects and molecular mechanisms of TWHF and its active compounds have been investigated in recent years. Currently, it is becoming clearer that the effects of TWHF and its active compounds involve in anti-inflammation, anti-oxidative stress, anti-fibrosis, regulating autophagy, apoptosis, and protecting podocytes effect. This review presents an overview of the current findings related to the effects and mechanisms of TWHF and its active compounds in therapies of DN, thus providing a systematic understanding of the mechanisms and therapeutic targets by which TWHF and its active compounds affect cells and tissues in vitro and in vivo.
Collapse
Affiliation(s)
- Peng Liu
- Shunyi Hospital, Beijing Hospital of Traditional Chinese Medicine, Beijing, China
| | - Jing Zhang
- Institute of Plant Resources, Yunnan University, Kunming, China
| | - Yun Wang
- Shunyi Hospital, Beijing Hospital of Traditional Chinese Medicine, Beijing, China
| | - Zhengri Shen
- Shunyi Hospital, Beijing Hospital of Traditional Chinese Medicine, Beijing, China
| | - Chen Wang
- Shunyi Hospital, Beijing Hospital of Traditional Chinese Medicine, Beijing, China
| | - Dan-Qian Chen
- Department of Emergency, China-Japan Friendship Hospital, Beijing, China
| | - Xinping Qiu
- Shunyi Hospital, Beijing Hospital of Traditional Chinese Medicine, Beijing, China
| |
Collapse
|
21
|
Qiu Y, Qiu Y, Yao GM, Luo C, Zhang C. Natural product therapies in chronic kidney diseases: An update. Nephrol Ther 2021; 18:75-79. [PMID: 34187761 DOI: 10.1016/j.nephro.2021.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 11/15/2020] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
Chronic kidney disease is one of the major worldwide public health problems. Traditional Chinese medications have been widely used for chronic kidney disease treatment. As the development of modern phytochemistry technology, natural products have been isolated from traditional Chinese medications, which provide a more precise method for the investigation of traditional Chinese medications. In this article, we selected eight natural products from traditional Chinese medications for chronic kidney disease therapy to summarize the recent advances for the development of new medications.
Collapse
Affiliation(s)
- Yue Qiu
- Department of nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yang Qiu
- Department of nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Guang-Min Yao
- Hubei Key laboratory of natural medicinal chemistry and resource evaluation, School of pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Changqing Luo
- Department of nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Chun Zhang
- Department of nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| |
Collapse
|
22
|
Wang L, Wang Z, Yang Z, Yang K, Yang H. Study of the Active Components and Molecular Mechanism of Tripterygium wilfordii in the Treatment of Diabetic Nephropathy. Front Mol Biosci 2021; 8:664416. [PMID: 34164430 PMCID: PMC8215273 DOI: 10.3389/fmolb.2021.664416] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 05/20/2021] [Indexed: 12/19/2022] Open
Abstract
We aimed to explore the active ingredients and molecular mechanism of Tripterygium wilfordii (TW) in the treatment of diabetic nephropathy (DN) through network pharmacology and molecular biology. First, the active ingredients and potential targets of TW were obtained through the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and related literature materials, and Cytoscape 3.7.2 software was used to construct the active ingredient-target network diagram of TW. Second, the target set of DN was obtained through the disease database, and the potential targets of TW in the treatment of DN were screened through a Venn diagram. A protein interaction network diagram (PPI) was constructed with the help of the String platform and Cytoscape 3.7.2. Third, the ClueGO plug-in tool was used to enrich the GO biological process and the KEGG metabolic pathway. Finally, molecular docking experiments and cell pathway analyses were performed. As a result, a total of 52 active ingredients of TW were screened, and 141 predicted targets and 49 target genes related to DN were identified. The biological process of GO is mediated mainly through the regulation of oxygen metabolism, endothelial cell proliferation, acute inflammation, apoptotic signal transduction pathway, fibroblast proliferation, positive regulation of cyclase activity, adipocyte differentiation and other biological processes. KEGG enrichment analysis showed that the main pathways involved were AGE-RAGE, vascular endothelial growth factor, HIF-1, IL-17, relaxin signalling pathway, TNF, Fc epsilon RI, insulin resistance and other signaling pathways. It can be concluded that TW may treat DN by reducing inflammation, reducing antioxidative stress, regulating immunity, improving vascular disease, reducing insulin resistance, delaying renal fibrosis, repairing podocytes, and reducing cell apoptosis, among others, with multicomponent, multitarget and multisystem characteristics.
Collapse
Affiliation(s)
- Lin Wang
- Graduate School, First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zheyi Wang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Zhihua Yang
- Graduate School, First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Kang Yang
- Graduate School, First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongtao Yang
- Graduate School, First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| |
Collapse
|
23
|
Zhou K, Chang Y, Han B, Li R, Wei Y. MicroRNAs as crucial mediators in the pharmacological activities of triptolide (Review). Exp Ther Med 2021; 21:499. [PMID: 33791008 PMCID: PMC8005665 DOI: 10.3892/etm.2021.9930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 02/18/2021] [Indexed: 12/19/2022] Open
Abstract
Triptolide is the main bioactive constituent isolated from the Chinese herb Tripterygium wilfordii Hook F., which possesses a variety of pharmacological properties. MicroRNAs (miRNAs/miRs) are short non-coding RNAs that regulate gene expression post-transcriptionally. miRNAs are implicated in several intracellular processes, whereby their dysregulation contributes to pathogenesis of various diseases. Thus, miRNAs have great potential as biomarkers and therapeutic targets for diseases, and are implicated in drug treatment. Previous studies have reported that specific miRNAs are targeted, and their expression levels can be altered following exposure to triptolide. Thus, miRNAs are emerging as crucial mediators in the pharmacological activities of triptolide. The present review summarizes current literature on miRNAs as target molecules in the pharmacological activities of triptolide, including antitumor, anti-inflammatory, immunosuppressive, renal protective, cardioprotective, antiangiogenesis activities and multiorgan toxicity effects. In addition, the diverse signaling pathways involved are discussed to provide a comprehensive understanding of the underlying molecular mechanisms of triptolide in the regulation of target miRNAs.
Collapse
Affiliation(s)
- Kun Zhou
- Shanxi Institute of Energy, Taiyuan, Shanxi 030600, P.R. China
| | - Yinxia Chang
- College of Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Jinzhong, Shanxi 030619, P.R. China
| | - Bo Han
- College of Basic Medicine, Shanxi University of Chinese Medicine, Jinzhong, Shanxi 030619, P.R. China
| | - Rui Li
- College of Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Jinzhong, Shanxi 030619, P.R. China
| | - Yanming Wei
- College of Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Jinzhong, Shanxi 030619, P.R. China
| |
Collapse
|
24
|
Fang JY, Yang Y, Zhang Z, Jiang SM, Yu TY, Li WG. Effects of adding tripterygium glycosides to angiotensin-converting enzyme inhibitors or angiotensin receptor blockers on albuminuria in patients with diabetic nephropathy. Chronic Dis Transl Med 2020; 6:18-26. [PMID: 32226931 PMCID: PMC7096323 DOI: 10.1016/j.cdtm.2019.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Indexed: 12/11/2022] Open
Abstract
Introduction Tripterygium glycosides (TGs) have been widely used in China to treat diabetic nephropathy (DN); however, proof of their use is scarce. The present study aimed to evaluate the effectiveness and safety of adding TGs to angiotensin-converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARBs). Methods By searching Embase, MEDLINE, Cochrane Library, SINOMED, China National Knowledge Infrastructure, VIP Information/Chinese Scientific Journals, and WANFANG databases, we identified previous studies that met the specific selection criteria and included them in the meta-analysis. Analyses were performed using Review Manager (version 5.3). Results Nine randomized controlled trials were included in the final meta-analysis. Patients were compared before and after treatment with ACE inhibitors or ARBs plus TGs, or ACE inhibitors or ARBs alone. The results revealed that treatment with ACE inhibitors or ARBs plus TGs resulted in significantly greater reductions in 24-h urinary total protein (UTP) levels (trial duration <2 months, mean difference [MD]: −0.25; 95% confidence interval [CI]: −0.32, −0.18; trial duration between 2 and 6 months, MD: −0.39; 95% CI: −0.44, −0.33; trial duration >6 months, MD: −2.09; 95% CI: −2.89, −1.29) compared with treatment using ACE inhibitors or ARBs alone. Additionally, ACE inhibitors or ARBs plus TGs showed better results after long-term administration. Treatment with ACE inhibitors or ARBs plus TGs resulted in significantly greater reductions in serum creatinine (SCr) compared with ACE inhibitors or ARBs alone (MD: −9.87; 95% CI: −13.76, −5.97). Conclusion In patients with DN, adding TGs to ACE inhibitors or ARBs significantly lowered both the 24-h UTP and SCr levels. Therefore, ACE inhibitors or ARBs plus TGs might improve the treatment of DN in patients.
Collapse
Affiliation(s)
- Jin-Ying Fang
- Beijing University of Chinese Medicine, Beijing 100029, China.,Department of Nephrology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Yue Yang
- Department of Nephrology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Zheng Zhang
- Department of Nephrology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Shi-Min Jiang
- Department of Nephrology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Tian-Yu Yu
- Department of Nephrology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Wen-Ge Li
- Beijing University of Chinese Medicine, Beijing 100029, China.,Department of Nephrology, China-Japan Friendship Hospital, Beijing 100029, China
| |
Collapse
|
25
|
Wan Q, Liu Z, Yang M, Deng P, Tang N, Liu Y. Triptolide ameliorates fine particulate matter-induced podocytes injury via regulating NF-κB signaling pathway. BMC Mol Cell Biol 2020; 21:4. [PMID: 32013860 PMCID: PMC6998203 DOI: 10.1186/s12860-020-0248-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 06/02/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND PM2.5 is associated closely with an increased risk of membranous nephropathy (MN), however, whether PM2.5 could induce podocytes injury, the underlying pathology for MN, has not be thoroughly studied. Triptolide, an active component in Tripterygium wilfordii Hook F, is frequently used to treat MN in China, but its effects on PM2.5-induced podocytes injury is still largely unknown. Therefore, we evaluated the effects of PM2.5 on podocytes, and explored whether triptolide could improve PM2.5-induced podocytes injury and the possible underlying mechanisms. RESULTS Podocytes were incubated with PM2.5 after being pre-treated with triptolide, viability, apoptosis rate and migratory capacity of podocytes were determined by CCK-8 assay, flow cytometry and Transwell assay, respectively. Additionally, the levels of lactate dehydrogenase (LDH), malondialdehyde (MDA), and superoxide dismutase (SOD) in podocytes, the cytoskeleton of podocytes, the protein expressions of nephrin, podocin, Bcl-2, Bax, nuclear factor kappa-B/p65 (NF-κB/p65) and phospho-inhibitor of NF-κB (p-IκBα) were measured. Our data showed that PM2.5 treatment significantly increased the disorganization of F-actin stress fibers, the damaged structural integrity of nucleus, the deranged and dissociated cytoskeleton in podocytes, increased the podocytes apoptosis rate, the levels of MDA and LDH, markedly up-regulated the protein expression of Bax, NF-κB/p65 and p-IκBα, down-regulated the protein expression of nephrin, podocin and Bcl-2, and significantly decreased the level of SOD, the migration rate and the viability of podocytes, compared with those of the untreated podocytes. These effects of PM2.5 on podocytes, however, were reversed by triptolide administration. CONCLUSION These results suggest that triptolide could prevent against PM2.5-induced podocytes injury via suppressing NF-κB signaling pathway.
Collapse
Affiliation(s)
- Qiang Wan
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China.
| | - Zhongyong Liu
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine of Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Peng Deng
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Nana Tang
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Yanwei Liu
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| |
Collapse
|
26
|
Arif E, Solanki AK, Srivastava P, Rahman B, Fitzgibbon WR, Deng P, Budisavljevic MN, Baicu CF, Zile MR, Megyesi J, Janech MG, Kwon SH, Collier J, Schnellmann RG, Nihalani D. Mitochondrial biogenesis induced by the β2-adrenergic receptor agonist formoterol accelerates podocyte recovery from glomerular injury. Kidney Int 2019; 96:656-673. [PMID: 31262488 PMCID: PMC6708766 DOI: 10.1016/j.kint.2019.03.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 03/07/2019] [Accepted: 03/28/2019] [Indexed: 01/14/2023]
Abstract
Podocytes have limited ability to recover from injury. Here, we demonstrate that increased mitochondrial biogenesis, to meet the metabolic and energy demand of a cell, accelerates podocyte recovery from injury. Analysis of events induced during podocyte injury and recovery showed marked upregulation of peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α), a transcriptional co-activator of mitochondrial biogenesis, and key components of the mitochondrial electron transport chain. To evaluate our hypothesis that increasing mitochondrial biogenesis enhanced podocyte recovery from injury, we treated injured podocytes with formoterol, a potent, specific, and long-acting β2-adrenergic receptor agonist that induces mitochondrial biogenesis in vitro and in vivo. Formoterol increased mitochondrial biogenesis and restored mitochondrial morphology and the injury-induced changes to the organization of the actin cytoskeleton in podocytes. Importantly, β2-adrenergic receptors were found to be present on podocyte membranes. Their knockdown attenuated formoterol-induced mitochondrial biogenesis. To determine the potential clinical relevance of these findings, mouse models of acute nephrotoxic serum nephritis and chronic (Adriamycin [doxorubicin]) glomerulopathy were used. Mice were treated with formoterol post-injury when glomerular dysfunction was established. Strikingly, formoterol accelerated the recovery of glomerular function by reducing proteinuria and ameliorating kidney pathology. Furthermore, formoterol treatment reduced cellular apoptosis and increased the expression of the mitochondrial biogenesis marker PGC-1α and multiple electron transport chain proteins. Thus, our results support β2-adrenergic receptors as novel therapeutic targets and formoterol as a therapeutic compound for treating podocytopathies.
Collapse
Affiliation(s)
- Ehtesham Arif
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Ashish K Solanki
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Pankaj Srivastava
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Bushra Rahman
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Wayne R Fitzgibbon
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Peifeng Deng
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Milos N Budisavljevic
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Catalin F Baicu
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina, USA; Ralph H. Johnson VA Medical Center, Charleston, South Carolina, USA
| | - Michael R Zile
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina, USA; Ralph H. Johnson VA Medical Center, Charleston, South Carolina, USA
| | - Judit Megyesi
- John C McClelland VA Hospital, Little Rock, Arkansas, USA
| | | | - Sang-Ho Kwon
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, Georgia, USA
| | - Justin Collier
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Rick G Schnellmann
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona, USA; Southern Arizona VA Health Care System, Tucson, Arizona, USA.
| | - Deepak Nihalani
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Charleston, South Carolina, USA.
| |
Collapse
|
27
|
He HG, Wu CQ, Ye K, Zeng C, Huang YY, Luo SW, Yin W, Ye QR, Peng XM. Focal segmental glomerulosclerosis, excluding atypical lesion, is a predictor of renal outcome in patients with membranous nephropathy: a retrospective analysis of 716 cases. BMC Nephrol 2019; 20:328. [PMID: 31438882 PMCID: PMC6704573 DOI: 10.1186/s12882-019-1498-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 07/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Focal segmental lesions (FSLs) are not uncommon in idiopathic membranous nephropathy (IMN). The reported percentage of IMN patients with focal segmental glomerulosclerosis (FSGS) lesions varies widely between studies. The objective of this study was to differentiate atypical FSL (aFSL) from typical FSGS in IMN and to analyse the clinicopathological predictors of primary outcome of IMN patients. METHODS A total of 716 patients with biopsy-proven IMN between January 1, 2007 and December 31, 2017 were enrolled in the study. An atypical focal segmental lesion was defined as pure synechia, segmental hyperplasia of podocytes or thickening of the GBM accompanied by proliferation of the mesangial matrix, and absence of typical FSGS. The patients were divided into three groups: patients without FSL (FSL-), patients with typical FSGS (FSGS+), and patients with aFSL (aFSL+).The primary outcome was a 50% decline in the initial estimated glomerular filtration rate or end-stage renal disease (ESRD) incidence. Secondary outcomes included all-cause death and ESRD. RESULTS FSGS was present in 174 patients, while aFSL was noted in 161 patients. Systolic blood pressure was higher in both aFSL+ group and FSGS+ groups compared with the FSL- group. IMN patients without FSL and with aFSL had lower serum creatinine levels than IMN patients with FSGS. Both the FSGS+ and aFSL+ groups had higher levels of proteinuria and lower albumin levels than the FSL- group. Renal tissue lesions, including tubulointerstitial fibrosis, glomerular obsolescence, and vascular sclerosis were significantly more severe in the FSGS+ group. Cox multivariate analysis showed that older age ≥ 60 years, eGFR< 60 ml/(min·1.73m2), tubulointerstitial fibrosis area ≥ 15% and FSGS at biopsy were independent risk factors for the primary outcome. CONCLUSIONS No significant difference in outcome was found between the FSL- and aFSL+ groups, although the patients with aFSL had lower levels of serum albumin and eGFR, higher level of urinary protein, more severe renal lesions with proliferation of the mesangial area,tubulointerstitial fibrosis and vascular sclerosis. FSGS, excluding atypical lesions, was an independent predictor of the primary outcome.
Collapse
Affiliation(s)
- Hong-Guang He
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China
| | - Chao-Qing Wu
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China
| | - Kun Ye
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China
| | - Chun Zeng
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China
| | - Yi-Yun Huang
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China
| | - Shu-Wen Luo
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China
| | - Wu Yin
- Department of Pathology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China
| | - Qiu-Rong Ye
- Department of Pathology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China
| | - Xiao-Mei Peng
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu District, Nanning, 530000, China.
| |
Collapse
|
28
|
Zhai X, Wang L, Xu C, Hou Q, Zhang L, Li Z, Qin W, Liu Z, Chen Z. Triptolide preserves glomerular barrier function via the inhibition of p53-mediated increase of GADD45B. Arch Biochem Biophys 2019; 671:210-217. [DOI: 10.1016/j.abb.2019.07.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/03/2019] [Accepted: 07/14/2019] [Indexed: 01/21/2023]
|
29
|
Yao P, Li Y, Yang Y, Yu S, Chen Y. Triptolide Improves Cognitive Dysfunction in Rats with Vascular Dementia by Activating the SIRT1/PGC-1α Signaling Pathway. Neurochem Res 2019; 44:1977-1985. [PMID: 31236795 DOI: 10.1007/s11064-019-02831-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/10/2019] [Accepted: 06/14/2019] [Indexed: 12/30/2022]
Abstract
Tripterygium Wilfordii Hook F has been exploited as a treatment for several diseases due to its neuroprotective, anti-tumor, and anti-inflammatory effects. Triptolide is one of its key bioactive compounds. Currently, the role of triptolide in cognitive dysfunction remains unclear. Here, the role of triptolide on cognitive dysfunction was investigated using chronic cerebral hypoperfusion-induced vascular dementia (VD) rat model. SD rats were administrated with Triptolide (5 μg/kg) for 6 weeks after undergoing permanent bilateral common carotid artery occlusion. The results show that triptolide treatment conferred neuroprotective effects in VD rats. Intraperitoneal injection of triptolide attenuated oxidative stress, learning and memory deficits, and neuronal apoptosis in the hippocampi. Moreover, triptolide enhanced the expression of SIRT1, PGC-1α, ZO-1, Claudin-5, and decreased the serum levels of NSE and S100B significantly. It also improved CCH-induced learning and memory deficits, and this is attributed to its capacity to promote SIRT1/PGC-1α signaling, confer antioxidant effects, and inhibit neuronal apoptosis. These findings indicate that triptolide may be an effective therapeutic agent for vascular cognitive dysfunction.
Collapse
Affiliation(s)
- Peng Yao
- Department of Anesthesiology, Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Yiling Li
- Department of Anesthesiology, Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Yujun Yang
- Department of Anesthesiology, Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Shuchun Yu
- Department of Anesthesiology, Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
- Jiangxi Province Key of Laboratory of Anesthesiology, Nanchang, China
| | - Yong Chen
- Department of Anesthesiology, Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
- Jiangxi Province Key of Laboratory of Anesthesiology, Nanchang, China.
| |
Collapse
|
30
|
Jin J, Tu Q, Gong J, Zhao L, Liang S, He Q. Autophagy activity and expression pattern of autophagy-related markers in the podocytes of patients with lupus nephritis: association with pathological classification. Ren Fail 2019; 41:294-302. [PMID: 31014158 PMCID: PMC6493218 DOI: 10.1080/0886022x.2019.1598432] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To identify the significance of autophagy in lupus nephritis (LN). METHODS The number of autophagosomes in podocytes was counted and the expression of multiple molecular markers associated with autophagy was evaluated in LN specimens: in renal biopsy specimens from 90 patients with LN and 15 healthy controls, autophagosomes in podocytes were counted using transmission electron microscopy and the expression levels of four autophage related proteins including Beclin-1, microtubule-associated protein light chain 3 (LC3), autophagy-related gene 7 (Atg7), and UNC-51-like kinase 1 (ULK1) were measured using immunohistochemistry. RESULTS The number of autophagosomes in patients with LN types III, IV, and combined V-IV type were significantly higher than in controls (p < 0.0001; p < 0.0001; p = 0.009, respectively). However, the autophagosomes numbers in patients with II and V types LN were significantly lower than controls (both p < 0.0001). Various levels of marker expression were identified, and they correlated significantly with LN pathology classifications. Moreover, the percentage of marker expression in LN types III, IV and V-IV were significantly higher than controls (p < 0.05), while that in types II and V were lower than controls, although the difference for LC3 and ULK1 was not statistically significant. CONCLUSIONS Autophagy activity and expression pattern of autophagy-related markers in podocytes were significantly positively correlated with LN of types III, IV, and V-IV, but negatively correlated with II and V types. Therefore autophagy could be a useful predictor of LN pathology type, and be informative and helpful in the development of treatment strategies in clinical settings.
Collapse
Affiliation(s)
- Juan Jin
- a Department of Nephrology , Zhejiang Provincial People's Hospital , Hangzhou , China
| | - Qiudi Tu
- a Department of Nephrology , Zhejiang Provincial People's Hospital , Hangzhou , China
| | - Jianguang Gong
- a Department of Nephrology , Zhejiang Provincial People's Hospital , Hangzhou , China
| | - Li Zhao
- a Department of Nephrology , Zhejiang Provincial People's Hospital , Hangzhou , China
| | - Shikai Liang
- a Department of Nephrology , Zhejiang Provincial People's Hospital , Hangzhou , China
| | - Qiang He
- a Department of Nephrology , Zhejiang Provincial People's Hospital , Hangzhou , China
| |
Collapse
|
31
|
Possible role of complement factor H in podocytes in clearing glomerular subendothelial immune complex deposits. Sci Rep 2019; 9:7857. [PMID: 31133737 PMCID: PMC6536504 DOI: 10.1038/s41598-019-44380-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 05/15/2019] [Indexed: 12/21/2022] Open
Abstract
Podocytes are known to express various complement factors including complement factor H (CFH) and to promote the removal of both subendothelial and subepithelial immune complex (IC) deposits. Using podocyte-selective injury model NEP25 mice and an IgG3-producing hybridoma clone 2B11.3 established by MRL/lpr mice, the present study investigated the role of podocyte complement regulation in only subendothelial IC deposition. In immunotoxin (LMB2) induced fatal podocyte injury (NEP25/LMB2) at day 12, glomerular CFH and C3a receptor (C3aR) expression was decreased as compared with NEP25/vehicle mice. In contrast, in sublytic podocyte injury 5 days after LMB2, glomerular CFH and C3aR expression was increased as compared with NEP25/vehicle mice. Intra-abdominal injection of 2B11.3 hybridoma to NEP25 mice (NEP25/hybridoma) caused IC deposition limited to the subendothelial area associated with unaltered CFH expression. NEP25/hybridoma mice with sublytic podocyte injury (NEP25/hybridoma/LMB2) resulted in increased glomerular CFH expression (1.7-fold) accompanied by decreased subendothelial IC deposition, as compared with NEP25/hybridoma. Immunostaining revealed that CFH was dominantly expressed in podocytes of NEP25/hybridoma/LMB2. In addition, puromycin-induced sublytic podocyte injury promoted CFH expression in immortalized mouse podocytes in vitro. These results suggest that in response to sublytic levels of injury, podocyte induced CFH expression locally and clearance of subendothelial IC deposits.
Collapse
|
32
|
Müller-Deile J, Schenk H, Niggemann P, Bolaños-Palmieri P, Teng B, Higgs A, Staggs L, Haller H, Schroder P, Schiffer M. Mutation of microphthalmia-associated transcription factor (mitf) in zebrafish sensitizes for glomerulopathy. Biol Open 2019; 8:bio.040253. [PMID: 30718228 PMCID: PMC6451330 DOI: 10.1242/bio.040253] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Different glomerular diseases that affect podocyte homeostasis can clinically present as nephrotic syndrome with massive proteinuria, hypoalbuminemia, hyperlipidemia and edema. Up to now, no drugs that specifically target the actin cytoskeleton of podocytes are on the market and model systems for library screenings to develop anti-proteinuric drugs are of high interest. We developed a standardized proteinuria model in zebrafish using puromycin aminonucleoside (PAN) via treatment in the fish water to allow for further drug testing to develop anti-proteinuric drugs for the treatment of glomerular diseases. We noticed that fish that carry the nacre-mutation show a significantly higher susceptibility for the disruption of the glomerular filtration barrier following PAN treatment, which results in a more pronounced proteinuria phenotype. Nacre zebrafish inherit a mutation yielding a truncated version of microphthalmia-associated transcription factor/melanogenesis associated transcription factor (mitf). We hypothesized that the nacre mutation may lead to reduced formin expression and defects in cytoskeletal rearrangement. Based on the observations in zebrafish, we carried out a PAN treatment on cultured human podocytes after knockdown with MITF siRNA causing a rearrangement of the actin cytoskeleton.
Collapse
Affiliation(s)
- Janina Müller-Deile
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Department of Nephrology and Hypertension, University of Erlangen-Nurnberg, Erlangen 91054, Germany
| | - Heiko Schenk
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Philipp Niggemann
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Patricia Bolaños-Palmieri
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Department of Nephrology and Hypertension, University of Erlangen-Nurnberg, Erlangen 91054, Germany
| | - Beina Teng
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Department of Nephrology and Hypertension, University of Erlangen-Nurnberg, Erlangen 91054, Germany
| | - Alysha Higgs
- Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Lynne Staggs
- Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Hermann Haller
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Patricia Schroder
- Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Mario Schiffer
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany .,Department of Nephrology and Hypertension, University of Erlangen-Nurnberg, Erlangen 91054, Germany
| |
Collapse
|
33
|
Yang YQ, Liang J, Han XD, Tian RM, Liu XS, Mao W, Xu HT, Liu B, Xu P. Dual-function of triptriolide in podocytes injury: inhibiting of apoptosis and restoring of survival. Biomed Pharmacother 2019; 109:1932-1939. [DOI: 10.1016/j.biopha.2018.11.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 11/01/2018] [Accepted: 11/07/2018] [Indexed: 02/09/2023] Open
|
34
|
Sun M, Song H, Ye Y, Yang Q, Xu X, Zhu X, Zhang J, Shi S, Wang J, Liu Z. Differential toxicities of triptolide to immortalized podocytes and the podocytes in vivo. Biomed Pharmacother 2018; 109:2375-2386. [PMID: 30551497 DOI: 10.1016/j.biopha.2018.11.081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 12/19/2022] Open
Abstract
Triptolide (TP) has an anti-proteinuric effect and is used for the treatment of podocytopathies. TP has also been shown to act directly on immortalized podocytes in culture to protect them from injury. In the present study, we examined the effect of TP on healthy podocytes both in vitro and in vivo to better understand the action of TP on podocytes. We found that treatment of TP at 10 ng/ml, a concentration that is routinely used for podocyte protection, was sufficient to activate pro-apoptotic signaling of MAPK p38, p53 and BAX and induced apoptosis in cultured podocytes; and higher concentrations of TP exacerbated the p38, p53 and BAX activations and apoptosis. Moreover, TP severely downregulated the genes that are essential for podocyte structure and function. Interestingly, in contrast with other agents TP-induced podocyte injury was not prevented by glucocorticoids. In vivo, high-dose TP treatment for prolonged time did not cause podocyte injury, essential genes downregulation, and proteinuria in mice. TP was also not toxic to the podocytes with isolated glomeruli ex vivo. In summary, TP is toxic to immortalized podocytes in culture but not to the podocytes in animals or isolated glomeruli ex vivo. Our study suggests that immortalized podocytes might have genetically evolved to become sensitive to TP toxicity and thus caution should be taken in interpreting data from immortalized podocytes. Nevertheless, in vivo TP could be as safe as glucocorticoids in treating podocytopathies. Finally, TP may be used as a unique in vitro model for studying steroid-resistant podocytopathies.
Collapse
Affiliation(s)
- Mengjie Sun
- Department of Nephrology, Jinling Hospital, Bengbu Medical College, Bengbu, China; National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Hui Song
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Yuting Ye
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Qianqian Yang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Xiaodong Xu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Xiaodong Zhu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Jiong Zhang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Shaolin Shi
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China.
| | - Jinquan Wang
- Department of Nephrology, Jinling Hospital, Bengbu Medical College, Bengbu, China; National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China.
| | - Zhihong Liu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| |
Collapse
|
35
|
Siligato R, Cernaro V, Nardi C, De Gregorio F, Gembillo G, Costantino G, Conti G, Buemi M, Santoro D. Emerging therapeutic strategies for minimal change disease and focal and segmental glomerulosclerosis. Expert Opin Investig Drugs 2018; 27:839-879. [PMID: 30360670 DOI: 10.1080/13543784.2018.1540587] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Minimal change disease (MCD) and Focal and segmental glomerulosclerosis (FSGS) are two of the major causes of nephrotic syndrome (NS) in children and adults. According to KDIGO (Kidney Disease: Improving Global Outcomes) guidelines, the treatment of adult primary MCD and FSGS should be based on immunosuppressants and antiproteinuric drugs. Recently, Rituximab, a humanized monoclonal antibody (mAb) has emerged as a potential treatment for steroid or calcineurin inhibitor-dependent patients; it has however demonstrated lower efficacy in those with nephrotic syndrome that is resistant to the above indicated drugs. AREAS COVERED Analysis of ongoing and already completed clinical trials, retrieved from clinicaltrials.gov, clinicaltrialsregister.eu and PubMed involving new therapies for nephrotic syndrome secondary to MCD and FSGS. EXPERT OPINION The most promising drugs under investigation for MCD and FSGS are mAbs. We are hopeful that new therapeutic options to treat multi-drug resistant MCD and FSGS will emerge from currently ongoing studies. What appears certain is the difficulty in enrolling patients affected by orphan renal diseases and the selection of valid endpoints in clinical trials, such as kidney failure.
Collapse
Affiliation(s)
- Rossella Siligato
- a Unit of Nephrology and Dialysis, Department of Internal Medicine , Messina , Italy
| | - Valeria Cernaro
- a Unit of Nephrology and Dialysis, Department of Internal Medicine , Messina , Italy
| | - Chiara Nardi
- a Unit of Nephrology and Dialysis, Department of Internal Medicine , Messina , Italy
| | - Francesca De Gregorio
- a Unit of Nephrology and Dialysis, Department of Internal Medicine , Messina , Italy
| | - Guido Gembillo
- a Unit of Nephrology and Dialysis, Department of Internal Medicine , Messina , Italy
| | - Giuseppe Costantino
- a Unit of Nephrology and Dialysis, Department of Internal Medicine , Messina , Italy
| | - Giovanni Conti
- b Unit of Pediatric Nephrology and Rheumatology , University of Messina , Messina , Italy
| | - Michele Buemi
- a Unit of Nephrology and Dialysis, Department of Internal Medicine , Messina , Italy
| | - Domenico Santoro
- a Unit of Nephrology and Dialysis, Department of Internal Medicine , Messina , Italy
| |
Collapse
|
36
|
Wang H, Zheng C, Xu X, Zhao Y, Lu Y, Liu Z. Fibrinogen links podocyte injury with Toll-like receptor 4 and is associated with disease activity in FSGS patients. Nephrology (Carlton) 2018; 23:418-429. [PMID: 28407405 DOI: 10.1111/nep.13046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/24/2017] [Accepted: 03/15/2017] [Indexed: 12/19/2022]
Abstract
AIM Fibrinogen (Fg) is reported to participate in inflammation through Toll-like receptor 4 (TLR4). However, it remains unknown whether Fg might induce podocyte damage through TLR4 and be related to disease activity in patients with focal segmental glomerulosclerosis (FSGS). METHODS We observed Fg-induced alterations in actin and apoptosis in cultured human podocytes transfected with or without TLR4 siRNA. Expression of TLR4, phospho-p38 MAPK and phospho-NF-κB p65 was evaluated by quantitative reverse transcription polymerase chain reaction (qRT-PCR) or western blotting, and we analysed urinary Fg levels in adriamycin-treated mice and double immunofluorescence staining for TLR4, Fg and podocin. Urinary Fg changes were also analyzed in FSGS patients under prednisone treatment. RESULTS First, Fg dose-dependently induced actin damage and apoptosis in cultured human podocytes, with an Fg-induced increase in TLR4 expression, and TLR4 siRNA transfection prevented these effects. TLR4 knockdown inhibited activation of p38 MAPK and NF-κB p65 in podocytes. Elevated urinary Fg levels were positively correlated with albuminuria in adriamycin-treated mice, in which Fg and TLR4 colocalized and exhibited increased expression in podocytes. Additionally, elevated urinary Fg levels were positively correlated with 24-h proteinuria and foot process width in FSGS patients. Urinary Fg levels were significantly decreased in patients with complete remission but not in those without remission. CONCLUSIONS Fg induced podocytes injury via the TLR4-p38 MAPK-NF-κB p65 pathway. In FSGS patients, urinary Fg levels reflect therapeutic response to prednisone and disease activity.
Collapse
Affiliation(s)
- Hongtian Wang
- Division of Nephrology, Jinling Hospital, Southern Medical University, Nanjing, China.,National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Chunxia Zheng
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Xiaodong Xu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Yue Zhao
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Yinghui Lu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Zhihong Liu
- Division of Nephrology, Jinling Hospital, Southern Medical University, Nanjing, China.,National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| |
Collapse
|
37
|
Liang S, Jin J, Shen X, Jiang X, Li Y, He Q. Triptolide protects podocytes via autophagy in immunoglobulin A nephropathy. Exp Ther Med 2018; 16:2275-2280. [PMID: 30186468 PMCID: PMC6122401 DOI: 10.3892/etm.2018.6480] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 07/02/2018] [Indexed: 12/21/2022] Open
Abstract
Triptolide is often used to treat patients with immunoglobulin A nephropathy (IgAN), especially in Asia. However, its detailed mechanism remains unclear. In vitro experiments were conducted with podocytes exposed to aggregated IgA (aIgA)-MSC1097-conditioned media. A total of four groups were compared in this study: A control group (CON); a healthy supernatant group (HEAs); an IgAN supernatant group (IgANs); and a triptolide group (TRI). First, aggregated IgA1 (aIgA1) was generated by heating monomeric IgA1 (mIgA1) from IgAN patients or healthy subjects. Next, the conditioned supernatant of MSC-1097 cells cultured with aIgA1 (100 mg/l) from IgAN patients (IgANs) or healthy subjects (HEAs) or without aIgA1 (CON) were harvested and used to incubate MPC5 cells. MPC5 cells in the TRI group were cultured with triptolide (10 ng/ml) and conditioned media from MSC-1097 cells cultured with aIgA1 from IgAN patients. After 24 h of treatment, MPC5 cells were collected to measure autophagy-related protein levels, including microtubule-associated protein light chain 3 (LC3), p62, cluster of differentiation (CD)63, phosphorylated-protein kinase B (Akt), Akt, p-mammalian target of rapamycin (mTOR), and mTOR, via western blotting, immunofluorescence or both, and to determine apoptosis by flow cytometry. All the results showed no difference between the CON and the HEAs. Compared to the CON and the HEAs, MPC5 cells in the IgANs group showed reduced autophagy, which was presented as decreased levels of LC3-II and CD63, as well as accumulation of p62, and an increased podocyte apoptosis rate. This was partly rescued by the addition of triptolide. Moreover, the p-mTOR/mTOR ratio increased in the IgANs group and decreased in the TRI group. Therefore, these results suggest that triptolide protects podocyte autophagy in IgAN patients.
Collapse
Affiliation(s)
- Shikai Liang
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Juan Jin
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Xiaogang Shen
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Xinxin Jiang
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Yiwen Li
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Qiang He
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| |
Collapse
|
38
|
Wang L, Zhang L, Hou Q, Zhu X, Chen Z, Liu Z. Triptolide attenuates proteinuria and podocyte apoptosis via inhibition of NF-κB/GADD45B. Sci Rep 2018; 8:10843. [PMID: 30022148 PMCID: PMC6052061 DOI: 10.1038/s41598-018-29203-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 07/06/2018] [Indexed: 12/14/2022] Open
Abstract
Podocyte injury is a primary contributor to proteinuria. Triptolide is a major active component of Tripterygium wilfordii Hook F that exhibits potent antiproteinuric effects. We used our previously developed in vivo zebrafish model of inducible podocyte-target injury and found that triptolide treatment effectively alleviated oedema, proteinuria and foot process effacement. Triptolide also inhibited podocyte apoptosis in our zebrafish model and in vitro. We also examined the mechanism of triptolide protection of podocyte. Whole-genome expression profiles of cultured podocytes demonstrated that triptolide treatment downregulated apoptosis pathway-related GADD45B expression. Specific overexpression of gadd45b in zebrafish podocytes abolished the protective effects of triptolide. GADD45B is a mediator of podocyte apoptosis that contains typical NF-κB binding sites in the promoter region, and NF-κB p65 primarily transactivates this gene. Triptolide inhibited NF-κB signalling activation and binding of NF-κB to the GADD45B promoter. Taken together, our findings demonstrated that triptolide attenuated proteinuria and podocyte apoptosis via inhibition of NF-κB/GADD45B signalling, which provides a new understanding of the antiproteinuric effects of triptolide in glomerular diseases.
Collapse
Affiliation(s)
- Ling Wang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210016, China
| | - Liwen Zhang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210016, China
| | - Qing Hou
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210016, China
| | - Xiaodong Zhu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210016, China
| | - Zhaohong Chen
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210016, China.
| | - Zhihong Liu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210016, China.
| |
Collapse
|
39
|
Triptolide prevents osteoarthritis via inhibiting hsa-miR-20b. Inflammopharmacology 2018; 27:109-119. [DOI: 10.1007/s10787-018-0509-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/15/2018] [Indexed: 12/15/2022]
|
40
|
Rider SA, Bruton FA, Collins RG, Conway BR, Mullins JJ. The Efficacy of Puromycin and Adriamycin for Induction of Glomerular Failure in Larval Zebrafish Validated by an Assay of Glomerular Permeability Dynamics. Zebrafish 2018; 15:234-242. [PMID: 29480793 PMCID: PMC5985910 DOI: 10.1089/zeb.2017.1527] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Defects in the glomerular filtration barrier (GFB) play a major role in the onset of human renal diseases. Highly ramified glomerular cells named podocytes are a critical component of the GFB. Injury to podocytes results in abnormal excretion of plasma proteins, which can lead to chronic kidney disease. The conserved paired nephron of larval zebrafish is an excellent model for assessing glomerular function and injury. The efficacy of two known podocyte toxins was tested to refine models of acute podocyte injury in larval zebrafish. The validated compound was then used to test a novel assay of the dynamics of abnormal protein excretion. Injected adriamycin was found to be unsuitable for induction of glomerular injury due to off-target cardiovascular toxicity. In contrast, puromycin treatment resulted in a loss of discriminative filtration, measured by excretion of 70 kDa dextran, and podocyte effacement confirmed by electron microscopy. The dynamics of dextran excretion during puromycin injury modeled the onset of glomerular damage within 24 hours postinjection. These data validate puromycin for induction of acute podocyte injury in zebrafish larvae and describe a semihigh-throughput assay for quantifying the dynamics of abnormal protein excretion.
Collapse
Affiliation(s)
- Sebastien Andrew Rider
- 1 Univeristy/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh , Edinburgh, United Kingdom
| | - Finnius Austin Bruton
- 1 Univeristy/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh , Edinburgh, United Kingdom
| | | | - Bryan Ronald Conway
- 1 Univeristy/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh , Edinburgh, United Kingdom
| | - John James Mullins
- 1 Univeristy/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh , Edinburgh, United Kingdom
| |
Collapse
|
41
|
Peng LQ, Zhao H, Liu S, Yuan YP, Yuan CY, Mwamunyi MJ, Pearce D, Yao LJ. Lack of serum- and glucocorticoid-inducible kinase 3 leads to podocyte dysfunction. FASEB J 2018; 32:576-587. [PMID: 28935820 DOI: 10.1096/fj.201700393rr] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Serum- and glucocorticoid-inducible kinase 3 (SGK3) is a downstream mediator of PI3K, which is essential for maintaining the functional integrity of podocytes. However, little is known about the role of SGK3 in podocyte function. Herein, we demonstrated that SGK3 contributes to the maintenance of podocyte integrity. Conditionally immortalized mouse podocyte cells (MPCs) were treated with puromycin aminonucleoside (PAN). PAN treatment inhibited the activity of SGK3 and the expression of podocin. Short hairpin RNA (shRNA)-mediated knockdown of SGK3 also reduced podocin expression in the absence of PAN. Adriamycin (ADR)-treated mice developed proteinuria and had decreased renal glomerular SGK3 expression in comparison to control mice. Consistent with a role for SGK3 in the ADR effect, SGK3 knockout (KO) mice had markedly reduced kidney podocin expression and significantly elevated proteinuria compared with wild-type mice. Electron microscopy revealed that SGK3 KO mice displayed partial effacement of podocyte foot processes. Further, a SGK3 target protein, glycogen synthase kinase-3 (GSK3), was discovered to be dramatically activated in PAN and SGK3 shRNA-treated MPCs and in SGK3 KO mice. Taken together, these data strongly suggest that SGK3 plays a significant role in regulating podocyte function, likely by controlling the expression and activity of GSK3.-Peng, L.-Q., Zhao, H., Liu, S., Yuan, Y.-P., Yuan, C.-Y., Mwamunyi, M.-J., Pearce, D., Yao, L.-J. Lack of serum- and glucocorticoid-inducible kinase 3 leads to podocyte dysfunction.
Collapse
Affiliation(s)
- Li-Qin Peng
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong Zhao
- Department of Trauma Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Song Liu
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ya-Pei Yuan
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cheng-Yan Yuan
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mercy-Julian Mwamunyi
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - David Pearce
- Department of Medicine, University of California, San Francisco, San Francisco, California, USA.,Department of Molecular and Cellular Pharmacology, University of California, San Francisco, San Francisco, California, USA
| | - Li-Jun Yao
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
42
|
Yu C, Li Y, Liu M, Gao M, Li C, Yan H, Li C, Sun L, Mo L, Wu C, Qi X, Ren J. Critical Role of Hepatic Cyp450s in the Testis-Specific Toxicity of (5R)-5-Hydroxytriptolide in C57BL/6 Mice. Front Pharmacol 2017; 8:832. [PMID: 29209210 PMCID: PMC5702336 DOI: 10.3389/fphar.2017.00832] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/31/2017] [Indexed: 12/17/2022] Open
Abstract
Low solubility, tissue accumulation, and toxicity are chief obstacles to developing triptolide derivatives, so a better understanding of the pharmacokinetics and toxicity of triptolide derivatives will help with these limitations. To address this, we studied pharmacokinetics and toxicity of (5R)-5-hydroxytriptolide (LLDT-8), a novel triptolide derivative immunosuppressant in a conditional knockout (KO) mouse model with liver-specific deletion of CYP450 reductase. Compared to wild type (WT) mice, after LLDT-8 treatment, KO mice suffered severe testicular toxicity (decreased testicular weight, spermatocytes apoptosis) unlike WT mice. Moreover, KO mice had greater LLDT-8 exposure as confirmed with elevated AUC and Cmax, increased drug half-life, and greater tissue distribution. γ-H2AX, a marker of meiosis process, its localization and protein level in testis showed a distinct meiosis block induced by LLDT-8. RNA polymerase II (Pol II), an essential factor for RNA storage and synapsis in spermatogenesis, decreased in testes of KO mice after LLDT-8 treatment. Germ-cell line based assays confirmed that LLDT-8 selectively inhibited Pol II in spermatocyte-like cells. Importantly, the analysis of androgen receptor (AR) related genes showed that LLDT-8 did not change AR-related signaling in testes. Thus, hepatic CYP450s were responsible for in vivo metabolism and clearance of LLDT-8 and aggravated testicular injury may be due to increased LLDT-8 exposure in testis and subsequent Pol II reduction.
Collapse
Affiliation(s)
- Cunzhi Yu
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yu Li
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Mingxia Liu
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Man Gao
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Chenggang Li
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Hong Yan
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Chunzhu Li
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Lihan Sun
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Liying Mo
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Chunyong Wu
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Xinming Qi
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jin Ren
- Center for Drug Safety Evaluation and Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
43
|
Wang Z, Yu C, Zhou LN, Chen X. Effects of Tripterygium wilfordii Induction Therapy to IgA Nephropathy Patients with Heavy Proteinuria. Biol Pharm Bull 2017; 40:1833-1838. [PMID: 28867717 DOI: 10.1248/bpb.b17-00134] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Although some new drugs have been developed, Tripterygium wilfordii HOOK F. (TWHF) has the merits of relatively lower price and fewer side effects. Unfortunately, the efficacy and safety of the TWHF (especially dosage 120 mg/d) in the immunoglobulin A (IgA) nephropathy (IgAN) are still lacking. A cohort study including 49 IgAN patients with heavy proteinuria who received induction therapy was undertaken. Patients were divided into three groups: Prednisone (PRE), conventional-dose TWHF (CTW) and double-dose TWHF (DTW). The clinical features, laboratory data, histological manifestations and outcomes of the groups were compared. We found that urinary protein excretion and rates of elevated n-acetyl-β-D-glucosaminidase (NAG) and retinol binding protein (RBP) were prominent in all groups. Neither histopathological changes nor the rates of renal insufficiency were significantly different among groups. Patients in the PRE (69.2%) and DTW groups (87.5%) achieved complete remission; none of the CTW group did. Furthermore, the total remission rate of the DTW group was substantially higher than that of the CTW group. The degree of hypoproteinemia, improved considerably in the PRE and DTW groups. Treatment was well tolerated in all patients, and no serious adverse events were observed. Our findings suggested that induction therapy with double dose TWHF significantly improved response rates in IgAN patients with heavy proteinuria, and did not considerably increase side effects.
Collapse
Affiliation(s)
- Zhen Wang
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine
| | - Chao Yu
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine
| | - Li-Na Zhou
- Department of Nephrology, Yancheng Third People's Hospital
| | - Xin Chen
- Department of Nephrology, Yancheng Third People's Hospital
| |
Collapse
|
44
|
Adrenomedullin ameliorates podocyte injury induced by puromycin aminonucleoside in vitro and in vivo through modulation of Rho GTPases. Int Urol Nephrol 2017; 49:1489-1506. [DOI: 10.1007/s11255-017-1622-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 05/15/2017] [Indexed: 01/02/2023]
|
45
|
Association of podocyte autophagosome numbers with idiopathic membranous nephropathy and secondary membranous nephropathy. Int Urol Nephrol 2017; 49:1025-1031. [PMID: 28285376 DOI: 10.1007/s11255-017-1555-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 02/22/2017] [Indexed: 10/20/2022]
Abstract
PURPOSE This study was to investigate the relation between the number of autophagosomes in podocytes and the syndromes of idiopathic membranous nephropathy (IMN) and secondary membranous nephropathy (sMN). METHODS The pathological changes in the kidney tissues of patients were detected with the hematoxylin and eosin staining, the periodic acid-Schiff reagent treatment, the Masson's trichrome staining and the immunofluorescence detection (IF). Meanwhile, the autophagosomes in podocyte were analyzed by transmission electron microscopy and the IF assay pointing to LC3-II, an autophagic marker. Clinical data, including age, sex, edema, serum creatinine, estimated glomerular filtration rate, hematuria, urine protein excretion and serum albumin, were collected from in-patient medical records. Finally, the association of podocyte autophagosome numbers with idiopathic membranous nephropathy and secondary membranous nephropathy was studied. RESULTS Fewer autophagosomes were observed in podocytes of nephropathy group compared with the control group. Moreover, there was a significant difference in the autophagosome number between the two types of MN and each kind of nephropathy demonstrated distinct characteristics. Although the reduced autophagosome number in the IMN cases was not related to sex, this trend was exacerbated along with the progression from pathological stage I to II. In contrast, fewer autophagosomes were observed in class II and V LN patients compared with the controls, while greater numbers were detected in class III and IV LN patients. CONCLUSIONS The results indicated that the autophagy participated in the podocyte injury in IMN and sMN and the number of autophagosomes in podocytes was related to the pathological classification.
Collapse
|
46
|
Zhang LY, Li H, Wu YW, Cheng L, Yan YX, Yang XQ, Zhu FH, He SJ, Tang W, Zuo JP. (5R)-5-hydroxytriptolide ameliorates lupus nephritis in MRL/ lpr mice by preventing infiltration of immune cells. Am J Physiol Renal Physiol 2017; 312:F769-F777. [PMID: 28100505 DOI: 10.1152/ajprenal.00649.2016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 01/13/2017] [Accepted: 01/14/2017] [Indexed: 11/22/2022] Open
Abstract
(5R)-5-hydroxytriptolide (LLDT-8), a triptolide derivative with low toxicity, was previously reported to have strong immunosuppressive effects both in vitro and in vivo, but it remains unknown whether LLDT-8 has a therapy effect on systemic lupus erythematosus. In this study, we aimed to investigate the therapeutic effects of LLDT-8 on lupus nephritis in MRL/lpr mice, a model of systemic lupus erythematosus. Compared with the vehicle group, different clinical parameters were improved upon LLDT-8 treatment as follows: prolonged life span of mice, decreased proteinuria, downregulated blood urea nitrogen and serum creatinine, reduced glomerular IgG deposits, and ameliorated histopathology. A decreased expression of the inflammatory cytokines IFN-γ, IL-17, IL-6, and TNF-α was also observed in the kidney of LLDT-8 treated MRL/lpr mice. Moreover, infiltration of T cells in the kidney was mitigated after LLDT-8 treatment, corresponding with decreased expression of related chemokines IP-10, Mig, and RANTES in the kidney. The proportion of macrophage and neutrophil cells and related chemokines expression was also reduced in kidneys of LLDT-8-treated mice. In the human proximal tubule epithelial cell line and mouse mesangial cell line, consistent with our in vivo experimental results, LLDT-8 suppressed the expression of related chemokines and IL-6. In summary, LLDT-8 has a therapeutic benefit for lupus nephritis via suppressing chemokine expression and inhibiting immune cell infiltration in kidneys of MRL/lpr mice.
Collapse
Affiliation(s)
- Lu-Yao Zhang
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and.,University of Chinese Academy of Sciences, Beijing, China
| | - Heng Li
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and.,University of Chinese Academy of Sciences, Beijing, China
| | - Yan-Wei Wu
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and
| | - Lei Cheng
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and.,University of Chinese Academy of Sciences, Beijing, China
| | - Yu-Xi Yan
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and.,University of Chinese Academy of Sciences, Beijing, China
| | - Xiao-Qian Yang
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and
| | - Feng-Hua Zhu
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and
| | - Shi-Jun He
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and
| | - Wei Tang
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and
| | - Jian-Ping Zuo
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China; and .,University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
47
|
Fakhruddin S, Alanazi W, Jackson KE. Diabetes-Induced Reactive Oxygen Species: Mechanism of Their Generation and Role in Renal Injury. J Diabetes Res 2017; 2017:8379327. [PMID: 28164134 PMCID: PMC5253173 DOI: 10.1155/2017/8379327] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 12/07/2016] [Indexed: 02/07/2023] Open
Abstract
Diabetes induces the onset and progression of renal injury through causing hemodynamic dysregulation along with abnormal morphological and functional nephron changes. The most important event that precedes renal injury is an increase in permeability of plasma proteins such as albumin through a damaged glomerular filtration barrier resulting in excessive urinary albumin excretion (UAE). Moreover, once enhanced UAE begins, it may advance renal injury from progression of abnormal renal hemodynamics, increased glomerular basement membrane (GBM) thickness, mesangial expansion, extracellular matrix accumulation, and glomerulosclerosis to eventual end-stage renal damage. Interestingly, all these pathological changes are predominantly driven by diabetes-induced reactive oxygen species (ROS) and abnormal downstream signaling molecules. In diabetic kidney, NADPH oxidase (enzymatic) and mitochondrial electron transport chain (nonenzymatic) are the prominent sources of ROS, which are believed to cause the onset of albuminuria followed by progression to renal damage through podocyte depletion. Chronic hyperglycemia and consequent ROS production can trigger abnormal signaling pathways involving diverse signaling mediators such as transcription factors, inflammatory cytokines, chemokines, and vasoactive substances. Persistently, increased expression and activation of these signaling molecules contribute to the irreversible functional and structural changes in the kidney resulting in critically decreased glomerular filtration rate leading to eventual renal failure.
Collapse
Affiliation(s)
- Selim Fakhruddin
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe (ULM), Pharmacy Building, 1800 Bienville Dr., Monroe, LA 71201, USA
| | - Wael Alanazi
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe (ULM), Pharmacy Building, 1800 Bienville Dr., Monroe, LA 71201, USA
| | - Keith E. Jackson
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe (ULM), Pharmacy Building, 1800 Bienville Dr., Monroe, LA 71201, USA
| |
Collapse
|
48
|
Calcineurin inhibitors cyclosporin A and tacrolimus protect against podocyte injury induced by puromycin aminonucleoside in rodent models. Sci Rep 2016; 6:32087. [PMID: 27580845 PMCID: PMC5007516 DOI: 10.1038/srep32087] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 08/02/2016] [Indexed: 12/12/2022] Open
Abstract
Podocyte injury and the appearance of proteinuria are features of minimal-change disease (MCD). Cyclosporin A (CsA) and tacrolimus (FK506) has been reported to reduce proteinuria in patients with nephrotic syndrome, but mechanisms remain unknown. We, therefore, investigated the protective mechanisms of CsA and FK506 on proteinuria in a rat model of MCD induced by puromycin aminonucleoside (PAN) and in vitro cultured mouse podocytes. Our results showed that CsA and FK506 treatment decreased proteinuria via a mechanism associated to a reduction in the foot-process fusion and desmin, and a recovery of synaptopodin and podocin. In PAN-treated mouse podocytes, pre-incubation with CsA and FK506 restored the distribution of the actin cytoskeleton, increased the expression of synaptopodin and podocin, improved podocyte viability, and reduced the migrating activities of podocytes. Treatment with CsA and FK506 also inhibited PAN-induced podocytes apoptosis, which was associated with the induction of Bcl-xL and inhibition of Bax, cleaved caspase 3, and cleaved PARP expression. Further studies revealed that CsA and FK506 inhibited PAN-induced p38 and JNK signaling, thereby protecting podocytes from PAN-induced injury. In conclusion, CsA and FK506 inhibit proteinuria by protecting against PAN-induced podocyte injury, which may be associated with inhibition of the MAPK signaling pathway.
Collapse
|
49
|
Gong W, Yu J, Wang Q, Li S, Song J, Jia Z, Huang S, Zhang A. Estrogen-related receptor (ERR) γ protects against puromycin aminonucleoside-induced podocyte apoptosis by targeting PI3K/Akt signaling. Int J Biochem Cell Biol 2016; 78:75-86. [PMID: 27417234 DOI: 10.1016/j.biocel.2016.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 07/06/2016] [Accepted: 07/08/2016] [Indexed: 12/21/2022]
Abstract
Accumulating evidence has shown that podocyte apoptosis is of vital importance for the development of glomerulosclerosis and progressive loss of renal function. However, the molecular mechanisms leading to podocyte apoptosis are still elusive. In this study, we investigated the role of estrogen-related receptor (ERR) γ in podocyte apoptosis, as well as the underlying mechanisms. Treatment of PAN caused a dose- and time-dependent podocyte apoptosis in line with a significant downregulation of ERRγ. Interestingly, the occurrence of ERRγ downregulation appeared earlier than the onset of cell apoptosis, suggesting a potential that ERRγ reduction triggered apoptotic response in podocyte. To test this hypothesis, ERRγ siRNA was administered to the podocytes. Strikingly, ERRγ silencing resulted in a significant cell apoptosis accompanied with increased injury markers of B7-1 and cathepsin L and decreased podocyte protein nephrin. In contrast, overexpression of ERRγ remarkably attenuated PAN-induced cell apoptosis. Moreover, ERRγ overexpression stimulated PI3K/Akt signaling pathway evidenced by increased expression of PI3K subunits p85α and p110α and phosphorylated Akt. Importantly, a specific PI3K inhibitor LY294002 entirely reversed the anti-apoptotic effect of ERRγ following PAN treatment. Finally, we observed a striking downregulation of ERRγ in PAN-treated rat kidneys, suggesting that our cell model replicated the in vivo condition. Taken together, these data highly suggested that ERRγ played a novel role in modulating podocyte apoptosis by targeting PI3K/Akt signaling pathway.
Collapse
Affiliation(s)
- Wei Gong
- Department of Nephrology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing 210029, China
| | - Jing Yu
- Department of Nephrology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing 210029, China
| | - Qilei Wang
- Department of Nephrology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing 210029, China
| | - Shuzhen Li
- Department of Nephrology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China; Nanjing Key Laboratory of Pediatrics, Nanjing 210008, China
| | - Jiayu Song
- Department of Nephrology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing 210029, China
| | - Zhanjun Jia
- Department of Nephrology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing 210029, China; Nanjing Key Laboratory of Pediatrics, Nanjing 210008, China
| | - Songming Huang
- Department of Nephrology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing 210029, China; Nanjing Key Laboratory of Pediatrics, Nanjing 210008, China
| | - Aihua Zhang
- Department of Nephrology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing 210029, China; Nanjing Key Laboratory of Pediatrics, Nanjing 210008, China.
| |
Collapse
|
50
|
Yu J, Gong W, Wu Y, Li S, Cui Y, Ma Y, Zhang Y, Yang G, Huang S, Jia Z, Zhang A. mPGES-1-derived PGE2 contributes to adriamycin-induced podocyte injury. Am J Physiol Renal Physiol 2016; 310:F492-8. [PMID: 26739892 DOI: 10.1152/ajprenal.00499.2015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 01/04/2016] [Indexed: 12/21/2022] Open
Abstract
Podocyte damage is a common pathological feature in many types of glomerular diseases and is involved in the occurrence and progression of kidney disease. However, the pathogenic mechanisms leading to podocyte injury are still uncertain. The present study was undertaken to investigate the role of microsomal PGE synthase (mPGES)-1 in adriamycin (ADR)-induced podocyte injury as well as the underlying mechanism. In both mouse kidneys and in vitro podocytes, application of ADR remarkably enhanced mPGES-1 expression in line with a stimulation of cyclooxygenase-2. Interestingly, inhibition of mPGES-1 with a small interfering RNA approach significantly attenuated ADR-induced downregualtion of podocin and nephrin. Moreover, ADR-induced podocyte apoptosis was also markedly blocked in parallel with blunted caspase-3 induction. In agreement with the improvement of cell phenotypic alteration and apoptosis, the enhanced inflammatory markers of IL-1β and TNF-α were also significantly suppressed by mPGES-1 silencing. More importantly, in mPGES-1-deficient mice, albuminuria induced by ADR showed a remarkable attenuation in line with decreased urinary output of PGE2 and TNF-α, highly suggesting an in vivo role of mPGES-1 in mediating podocyte injury. In summary, findings from the present study offered the first evidence demonstrating a pathogenic role of mPGES-1 in mediating ADR-induced podocyte injury possibly via triggering an inflammatory response.
Collapse
Affiliation(s)
- Jing Yu
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Wei Gong
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Yimei Wu
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Shuzhen Li
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Yiyun Cui
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Yifei Ma
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Yue Zhang
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Guangrui Yang
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Songming Huang
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Zhanjun Jia
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| | - Aihua Zhang
- Department of Nephrology, Nanjing Children's Hospital, Affiliated with Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China; and
- Nanjing Key Laboratory of Pediatrics, Nanjing, China
| |
Collapse
|