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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.
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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
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Han YZ, Du BX, Zhu XY, Wang YZY, Zheng HJ, Liu WJ. Lipid metabolism disorder in diabetic kidney disease. Front Endocrinol (Lausanne) 2024; 15:1336402. [PMID: 38742197 PMCID: PMC11089115 DOI: 10.3389/fendo.2024.1336402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 04/09/2024] [Indexed: 05/16/2024] Open
Abstract
Diabetic kidney disease (DKD), a significant complication associated with diabetes mellitus, presents limited treatment options. The progression of DKD is marked by substantial lipid disturbances, including alterations in triglycerides, cholesterol, sphingolipids, phospholipids, lipid droplets, and bile acids (BAs). Altered lipid metabolism serves as a crucial pathogenic mechanism in DKD, potentially intertwined with cellular ferroptosis, lipophagy, lipid metabolism reprogramming, and immune modulation of gut microbiota (thus impacting the liver-kidney axis). The elucidation of these mechanisms opens new potential therapeutic pathways for DKD management. This research explores the link between lipid metabolism disruptions and DKD onset.
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Affiliation(s)
- Yi-Zhen Han
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Bo-Xuan Du
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xing-Yu Zhu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yang-Zhi-Yuan Wang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Hui-Juan Zheng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Wei-Jing Liu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
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Zheng S, Zeng Y, Chu L, Gong T, Li S, Yang M. Renal Tissue-Derived Exosomal miRNA-34a in Diabetic Nephropathy Induces Renal Tubular Cell Fibrosis by Promoting the Polarization of M1 Macrophages. IET Nanobiotechnol 2024; 2024:5702517. [PMID: 38863972 PMCID: PMC11095076 DOI: 10.1049/2024/5702517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/14/2024] [Accepted: 03/28/2024] [Indexed: 06/13/2024] Open
Abstract
Background Diabetic nephropathy (DN) is the leading cause of chronic kidney disease, and the activation and infiltration of phagocytes are critical steps of DN. This study aimed to explore the mechanism of exosomes in macrophages and diabetes nephropathy and the role of miRNA-34a, which might provide a new path for treating DN. Materials and Methods The DN model was established, and the success of the model establishment was confirmed by detecting general indicators, HE staining, and immunohistochemistry. Electron microscopy and NanoSight Tracking Analysis (NTA) were used to see the morphology and size of exosomes. MiRNA-34a inhibitor, miRNA-34a mimics, pc-PPARGC1A, and controls were transfected in macrophages with or without kidney exosomal. A dual-luciferase reporter gene experiment verifies the targeting relationship between miRNA-34a and PPARGC1A. After exosomal culture, macrophages are co-cultured with normal renal tubular cells to detect renal tubular cell fibrosis. Q-PCR and western blot were undertaken to detect related RNA and proteins. Results An animal model of diabetic nephropathy was successfully constructed. Macrophages could phagocytose exosomes. After ingesting model exosomes, M1 macrophages were activated, while M2 macrophages were weakened, indicating the model mice's kidney exosomes caused the polarization. MiRNA-34a inhibitor increased PPARGC1A expression. MiRNA-34a expressed higher in diabetic nephropathy Model-Exo. MiRNA-34a negatively regulated PPARGC1A. PPARGC1A rescued macrophage polarization and renal tubular cell fibrosis. Conclusion Exosomal miRNA-34a of tubular epithelial cells promoted M1 macrophage activation in diabetic nephropathy via negatively regulating PPARGC1A expression, which may provide a new direction for further exploration of DN treatment.
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Affiliation(s)
- Shuai Zheng
- Department of Nephrology, The Second Affiliated Hospital, Kunming Medical University, No. 347 Dianmian Street, Kunming, Yunnan 650101, China
| | - Yi Zeng
- Department of Nephrology, The Second Affiliated Hospital, Kunming Medical University, No. 347 Dianmian Street, Kunming, Yunnan 650101, China
| | - Liqing Chu
- Department of Nephrology, The Second Affiliated Hospital, Kunming Medical University, No. 347 Dianmian Street, Kunming, Yunnan 650101, China
| | - Taiyang Gong
- Department of Nephrology, The Second Affiliated Hospital, Kunming Medical University, No. 347 Dianmian Street, Kunming, Yunnan 650101, China
| | - Sihong Li
- Department of Nephrology, The Second Affiliated Hospital, Kunming Medical University, No. 347 Dianmian Street, Kunming, Yunnan 650101, China
| | - Min Yang
- Department of Nephrology, The Second Affiliated Hospital, Kunming Medical University, No. 347 Dianmian Street, Kunming, Yunnan 650101, China
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Grodsky L, Wilson M, Rathinasabapathy T, Komarnytsky S. Triptolide Administration Alters Immune Responses to Mitigate Insulin Resistance in Obese States. Biomolecules 2024; 14:395. [PMID: 38672413 PMCID: PMC11048574 DOI: 10.3390/biom14040395] [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: 02/01/2024] [Revised: 03/18/2024] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
Individuals who are overweight or obese are at increased risk of developing prediabetes and type 2 diabetes, yet the direct molecular mechanisms that connect diabetes to obesity are not clear. Chronic, sustained inflammation is considered a strong risk factor in these interactions, directed in part by the short-lived gene expression programs encoding for cytokines and pro-inflammatory mediators. In this study, we show that triptolide administration in the C57BL/6 diet-induced obese mice at up to 10 μg/kg/day for 10 weeks attenuated the development of insulin resistance and diabetes, but not obesity, in these animals. Significant reductions in adipose tissue inflammation and improved insulin sensitivity were observed in the absence of changes in food intake, body weight, body composition, or energy expenditure. Analysis of the core cluster of biomarkers that drives pro-inflammatory responses in the metabolic tissues suggested TNF-α as a critical point that affected the co-development of inflammation and insulin resistance, but also pointed to the putatively protective roles of increased COX-2 and IL-17A signaling in the mediation of these pathophysiological states. Our results show that reduction of diet-induced inflammation confers partial protection against insulin resistance, but not obesity, and suggest the possibility of achieving overweight phenotypes that are accompanied by minimal insulin resistance if inflammation is controlled.
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Affiliation(s)
- Lyudmila Grodsky
- Plants for Human Health Institute, North Carolina State University, 600 Laureate Way, Kannapolis, NC 28081, USA; (L.G.); (M.W.); (T.R.)
- Department of Post-Baccalaureate Studies, University of North Carolina at Charlotte, 9201 University City Blvd, Charlotte, NC 28223, USA
- School of Medicine, University of North Carolina at Chapel Hill, 150 Medical Drive, Chapel Hill, NC 27514, USA
| | - Mickey Wilson
- Plants for Human Health Institute, North Carolina State University, 600 Laureate Way, Kannapolis, NC 28081, USA; (L.G.); (M.W.); (T.R.)
| | - Thirumurugan Rathinasabapathy
- Plants for Human Health Institute, North Carolina State University, 600 Laureate Way, Kannapolis, NC 28081, USA; (L.G.); (M.W.); (T.R.)
| | - Slavko Komarnytsky
- Plants for Human Health Institute, North Carolina State University, 600 Laureate Way, Kannapolis, NC 28081, USA; (L.G.); (M.W.); (T.R.)
- Department of Food, Bioprocessing, and Nutrition Sciences, North Carolina State University, 400 Dan Allen Drive, Raleigh, NC 27695, USA
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Jiang P, Yao C, Guo DA. Traditional Chinese medicine for the treatment of immune-related nephropathy: A review. Acta Pharm Sin B 2024; 14:38-66. [PMID: 38239236 PMCID: PMC10793104 DOI: 10.1016/j.apsb.2023.11.006] [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: 03/23/2023] [Revised: 09/18/2023] [Accepted: 10/24/2023] [Indexed: 01/22/2024] Open
Abstract
Immune-related nephropathy (IRN) refers to immune-response-mediated glomerulonephritis and is the main cause of end-stage renal failure. The pathogenesis of IRN is not fully understood; therefore, treatment is challenging. Traditional Chinese medicines (TCMs) have potent clinical effects in the treatment of the IRN conditions immunoglobulin A nephropathy, lupus nephropathy, and diabetic nephropathy. The underlying mechanisms mainly include its inhibition of inflammation; improvements to renal interstitial fibrosis, oxidative stress, autophagy, apoptosis; and regulation of immunity. In this review, we summarize the clinical symptoms of the three IRN subtypes and the use of TCM prescriptions, herbs, and bioactive compounds in treating IRN, as well as the potential mechanisms, intending to provide a reference for the future study of TCM as IRN treatments.
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Affiliation(s)
- Pu Jiang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Research Center of TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Changliang Yao
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Research Center of TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - De-an Guo
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Research Center of TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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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.
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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
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Fan D, Ying Z, Yang Y, Qian Q, Li Y, Wang P, An X, Yan M. Deciphering the anti-renal fibrosis mechanism of triptolide in diabetic nephropathy by the integrative approach of network pharmacology and experimental verification. JOURNAL OF ETHNOPHARMACOLOGY 2023; 316:116774. [PMID: 37311501 DOI: 10.1016/j.jep.2023.116774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/30/2023] [Accepted: 06/09/2023] [Indexed: 06/15/2023]
Affiliation(s)
- Decai Fan
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, NO. 24 TongJiaXiang St., Nanjing City, 210009, Jiangsu Province, China.
| | - Zi Ying
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, NO. 24 TongJiaXiang St., Nanjing City, 210009, Jiangsu Province, China.
| | - Ying Yang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, NO. 24 TongJiaXiang St., Nanjing City, 210009, Jiangsu Province, China.
| | - Qi Qian
- Department of Endocrinology, Affiliated Hospital of Nanjing University of Chinese Medicine, NO. 155 HanZhong Rd., Nanjing, 210029, Jiangsu Province, China.
| | - Yuanyuan Li
- Department of Endocrinology, Affiliated Hospital of Nanjing University of Chinese Medicine, NO. 155 HanZhong Rd., Nanjing, 210029, Jiangsu Province, China.
| | - Panjun Wang
- Department of Endocrinology, Affiliated Hospital of Nanjing University of Chinese Medicine, NO. 155 HanZhong Rd., Nanjing, 210029, Jiangsu Province, China.
| | - Xiaofei An
- Department of Endocrinology, Affiliated Hospital of Nanjing University of Chinese Medicine, NO. 155 HanZhong Rd., Nanjing, 210029, Jiangsu Province, China.
| | - Ming Yan
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, NO. 24 TongJiaXiang St., Nanjing City, 210009, Jiangsu Province, China.
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Jin B, Liu J, Zhu Y, Lu J, Zhang Q, Liang Y, Shao Q, Jiang C. Kunxian capsule alleviates podocyte injury and proteinuria by inactivating β-catenin in db/db mice. Front Med (Lausanne) 2023; 10:1213191. [PMID: 37457567 PMCID: PMC10349331 DOI: 10.3389/fmed.2023.1213191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023] Open
Abstract
Background Diabetic kidney disease (DKD) remains the primary cause of end-stage renal disease (ESRD) globally, but treatment options are limited. Kunxian capsule (KXC) has been utilized for the treatment of autoimmune diseases and IgA nephropathy in China. However, its effect on DKD remains poorly investigated. Therefore, this study aimed to explore the protective effect of KXC in db/db mice and elucidate its underlying mechanism. Methods The renoprotective effects of KXC were assessed in a DKD mouse model using male BKS db/db diabetic mice. After 8 weeks of treatment, the urinary albumin-to-creatinine ratio (UACR), blood biochemical parameters, renal histopathological manifestation, and podocyte ultrastructural changes were evaluated. Additionally, the expression of podocyte epithelial-to-mesenchymal transition (EMT) markers [WT1, ZO-1, and collogen I (Col1a1)] was quantitatively analyzed. Furthermore, we explored the role of KXC in the β-catenin signaling pathway to elucidate the underlying mechanism of KXC's renoprotective effect. Results KXC treatment effectively reduced albuminuria and attenuated renal structural abnormalities in db/db mice. Additionally, KXC restored the protein and mRNA expression of WT1 and ZO-1 while suppressing the expression of Col1a1 in db/db mice, indicating its ability to alleviate podocyte EMT. Mechanistically, KXC exerted a significant suppressive effect on the activation of β-catenin signaling in diabetic kidneys. Conclusion KXC has the potential to protect podocytes during DKD by alleviating podocyte EMT through inactivating β-catenin signaling.
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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.
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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.
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Zhao J, Liu H, Xia M, Chen Q, Wan L, Leng B, Tang C, Chen G, Liu Y, Zhang L, Liu H. Network Pharmacology and Experimental Validation to Explore That Celastrol Targeting PTEN is the Potential Mechanism of Tripterygium wilfordii (Lév.) Hutch Against IgA Nephropathy. Drug Des Devel Ther 2023; 17:887-900. [PMID: 36992900 PMCID: PMC10042171 DOI: 10.2147/dddt.s402503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/15/2023] [Indexed: 03/31/2023] Open
Abstract
Purpose Accumulating clinical evidence showed that Tripterygium hypoglaucum (Lév.) Hutch (THH) is effective against IgA nephropathy (IgAN), but the mechanism is still unclear. This study is to evaluate the renal protective effect and molecular mechanism of THH against IgAN via network pharmacology, molecular docking strategy and experimental validation. Methods Several databases were used for obtaining the active ingredients of THH, the corresponding targets, as well as the IgAN-related genes. The critical active ingredients, functional pathways, and potential for the combination of the hub genes and their corresponding active components were determined through bioinformatics analysis and molecular docking. The IgAN mouse model was treated with celastrol (1 mg/kg/d) for 21 days, and the aggregated IgA1-induced human mesangial cell (HMC) was treated with various concentrations of celastrol (25, 50 or 75 nM) for 48 h. The immunohistochemistry and Western blot techniques were applied to evaluate the protein expression of the predicted target. The cell counting kit 8 (CCK8) was used to detect HMC proliferation. Results A total of 17 active ingredients from THH were screened, covering 165 IgAN-related targets. The PPI network identified ten hub targets, including PTEN. The binding affinity between the celastrol and PTEN was the highest (-8.69 kJ/mol). The immunohistochemistry showed that celastrol promoted the expression of PTEN in the glomerulus of IgAN mice. Furthermore, the Western blot techniques showed that celastrol significantly elevated the expression of PTEN and inhibited PCNA and Cyclin D1 in vitro and in vivo. The CCK8 assay determined that celastrol decreased HMC proliferation in a concentration-dependent manner. Conclusion This study suggests that activating PTEN by celastrol may play a pivotal role in THH alleviating IgAN renal injury.
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Affiliation(s)
- Juanyong Zhao
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Haiyang Liu
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Ming Xia
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Qian Chen
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Lili Wan
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Bin Leng
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Chengyuan Tang
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Guochun Chen
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Yu Liu
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Lei Zhang
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Hong Liu
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
- Correspondence: Hong Liu; Lei Zhang, Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China, Tel +86-13973116951; +86-18673174522, Email ;
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Hagiwara M, Ishiyama S, Mochizuki K. Medium-chain triglycerides reduce glomerulosclerosis and induce expression of redox genes in NSY mice with diabetic nephropathy. PHARMANUTRITION 2022. [DOI: 10.1016/j.phanu.2022.100325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Molecular Mechanistic Pathways Targeted by Natural Compounds in the Prevention and Treatment of Diabetic Kidney Disease. Molecules 2022; 27:molecules27196221. [PMID: 36234757 PMCID: PMC9571643 DOI: 10.3390/molecules27196221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/18/2022] [Accepted: 09/19/2022] [Indexed: 12/03/2022] Open
Abstract
Diabetic kidney disease (DKD) is one of the most common complications of diabetes, and its prevalence is still growing rapidly. However, the efficient therapies for this kidney disease are still limited. The pathogenesis of DKD involves glucotoxicity, lipotoxicity, inflammation, oxidative stress, and renal fibrosis. Glucotoxicity and lipotoxicity can cause oxidative stress, which can lead to inflammation and aggravate renal fibrosis. In this review, we have focused on in vitro and in vivo experiments to investigate the mechanistic pathways by which natural compounds exert their effects against the progression of DKD. The accumulated and collected data revealed that some natural compounds could regulate inflammation, oxidative stress, renal fibrosis, and activate autophagy, thereby protecting the kidney. The main pathways targeted by these reviewed compounds include the Nrf2 signaling pathway, NF-κB signaling pathway, TGF-β signaling pathway, NLRP3 inflammasome, autophagy, glycolipid metabolism and ER stress. This review presented an updated overview of the potential benefits of these natural compounds for the prevention and treatment of DKD progression, aimed to provide new potential therapeutic lead compounds and references for the innovative drug development and clinical treatment of DKD.
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Lin L, Tian E, Ren J, Wu Z, Deng J, Yang J. Traditional Chinese Medicine in Treating Primary Podocytosis: From Fundamental Science to Clinical Research. Front Pharmacol 2022; 13:932739. [PMID: 36003509 PMCID: PMC9393213 DOI: 10.3389/fphar.2022.932739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/23/2022] [Indexed: 11/30/2022] Open
Abstract
Podocytes form a key component of the glomerular filtration barrier. Damage to podocytes is referred to as “podocyte disease.” There are many causes of podocyte injury, including primary injury, secondary injury, and gene mutations. Primary podocytosis mostly manifests as nephrotic syndrome. At present, first-line treatment is based on glucocorticoid administration combined with immunosuppressive therapy, but some patients still progress to end-stage renal disease. In Asia, especially in China, traditional Chinese medicine (TCM) still plays an important role in the treatment of kidney diseases. This study summarizes the potential mechanism of TCM and its active components in protecting podocytes, such as repairing podocyte injury, inhibiting podocyte proliferation, reducing podocyte apoptosis and excretion, maintaining podocyte skeleton structure, and upregulating podocyte-related protein expression. At the same time, the clinical efficacy of TCM in the treatment of primary podocytosis (including idiopathic membranous nephropathy, minimal change disease, and focal segmental glomerulosclerosis) is summarized to support the development of new treatment strategies for primary podocytosis.
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Affiliation(s)
- Lirong Lin
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing, China
| | - En Tian
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing, China
| | - Jiangwen Ren
- Department of Nephrology, Rheumatism and Immunology, Jiulongpo District People’s Hospital of Chongqing, Chongqing, China
| | - Zhifeng Wu
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing, China
| | | | - Jurong Yang
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing, China
- *Correspondence: Jurong Yang,
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Su Q, Dong J, Zhang D, Yang L, Roy R. Protective Effects of the Bilobalide on Retinal Oxidative Stress and Inflammation in Streptozotocin-Induced Diabetic Rats. Appl Biochem Biotechnol 2022; 194:6407-6422. [PMID: 35932369 DOI: 10.1007/s12010-022-04012-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2022] [Indexed: 12/01/2022]
Abstract
Diabetic retinopathy (DR) is a diabetes mellitus (DM) complication that causes visual acuity impairment and loss of sight in the working population, mainly in developed countries. According to the WHO, DR accounts for 5% of the world's 37 million blind people. The prevalence of diabetic retinopathy was highest in Africa, followed by North America and the Caribbean and South and Central America. Hyperglycemia can generate excessive ROS that activates multiple pathways, which can damage the cells. Oxidative stress and inflammatory process are intricate in the DR pathological mechanism. Bilobalide is the main bioactive compound isolated from the Ginkgo biloba, a plant utilized in folklore medicine. Bilobalide, a sesquiterpene trilactone, exhibits excellent antioxidant activity. But the molecular mechanisms associated with such effects, especially the antioxidant-related mechanism, have not been documented. Hence, this investigation explored whether bilobalide may attenuate DR in streptozotocin (STZ)-prompted diabetic rats. The effects of bilobalide on parameters of antioxidant content, oxidative stress, and inflammatory factors in the retinal tissues were evaluated by ELISA, RT-PCR, and immunohistochemistry methods. Bilobalide improved caloric management by reducing food consumption and increasing body weight. Furthermore, the administration of bilobalide decreases the blood glucose level and glycosylated (HbA1c) hemoglobin. The anti-retinopathy activity of bilobalide was established by the increase in the total retina thickness (TRT), inner nuclear layer (INL), and outer nuclear layer (ONL) in diabetic rats. Additionally, the serum level of MDA was decreased. In contrast, the antioxidant enzyme (SOD and CAT) levels were increased with TAC plus lower Keap1 and higher Nrf2 expression in the retina when associated with the DM rats. Moreover, bilobalide increased the nuclear factor erythroid 2-related factor 2 (Nrf2) and Heme oxygenase-1 (HO-1) expression level and inflammatory mediators (NF-κβ p65, TNF-α, IL-1β, and VEGF), thus inhibiting oxidative stress. Bilobalide can be effective against DR, and the possible mechanism may be relatively elucidated by decreasing oxidative stress and anti-inflammatory activities. But the further investigation should be directed to expose the precise mechanism.
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Affiliation(s)
- Qiang Su
- Department of Ophthalmology, The First Hospital of Shanxi Medical University, Taiyuan, 030001, China.
| | - Jing Dong
- Department of Ophthalmology, The First Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Donglei Zhang
- Department of Ophthalmology, The First Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Lu Yang
- Department of Retinology, Shanxi Eye Hospital, Taiyuan, 030001, China
| | - Rupak Roy
- SHRM Biotechnologies Pvt. Ltd. Kolkata, Kolkata, West Bengal, India
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Sikora-Jasinska M, Morath LM, Kwesiga MP, Plank ME, Nelson AL, Oliver AA, Bocks ML, Guillory RJ, Goldman J. In-vivo evaluation of molybdenum as bioabsorbable stent candidate. Bioact Mater 2022; 14:262-271. [PMID: 35310360 PMCID: PMC8897701 DOI: 10.1016/j.bioactmat.2021.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/13/2021] [Accepted: 11/05/2021] [Indexed: 12/19/2022] Open
Abstract
Biodegradable stents have tremendous theoretical potential as an alternative to bare metal stents and drug-eluting stents for the treatment of obstructive coronary artery disease. Any bioresorbable or biodegradable scaffold material needs to possess optimal mechanical properties and uniform degradation behavior that avoids local and systemic toxicity. Recently, molybdenum (Mo) has been investigated as a potential novel biodegradable material for this purpose. With its proven moderate degradation rate and excellent mechanical properties, Mo may represent an ideal source material for clinical cardiac and vascular applications. The present study was performed to evaluate the mechanical performance of metallic Mo in vitro and the biodegradation properties in vivo. The results demonstrated favorable mechanical behavior and a uniform degradation profile as desired for a new generation ultra-thin degradable endovascular stent material. Moreover, Mo implants in mouse arteries avoided the typical cellular response that contributes to restenosis. There was minimal neointimal hyperplasia over 6 months, an absence of excessive smooth muscle cell (SMC) proliferation or inflammation near the implant, and avoidance of significant harm to regenerating endothelial cells (EC). Qualitative inspection of kidney sections showed a potentially pathological remodeling of kidney Bowman's capsule and glomeruli, indicative of impaired filtering function and development of kidney disease, although quantifications of these morphological changes were not statistically significant. Together, the results suggest that the products of Mo corrosion may exert beneficial or inert effects on the activities of inflammatory and arterial cells, while exerting potentially toxic effects in the kidneys that warrant further investigation. Mo implants in mouse arteries avoided neointimal hyperplasia over 6 months. Quantification of CD31-labeled arterial sections showed an avoidance of significant harm to regenerating endothelial cells for the Mo implants. Qualitative inspection of kidney sections showed a potential pathological remodeling, indicative of possible impaired filtering function.
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Gao J, Liang Z, Zhao F, Liu X, Ma N. Triptolide inhibits oxidative stress and inflammation via the microRNA-155-5p/brain-derived neurotrophic factor to reduce podocyte injury in mice with diabetic nephropathy. Bioengineered 2022; 13:12275-12288. [PMID: 35603354 PMCID: PMC9275869 DOI: 10.1080/21655979.2022.2067293] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Diabetic nephropathy (DN) is a complication of diabetes. This study sought to explore the mechanism of triptolide (TP) in podocyte injury in DN. DN mice were induced by high-fat diet&streptozocin and treated with TP. Fasting blood glucose, 24 h urine microalbumin (UMA), the pathological changes of renal tissues, and ultrastructure of renal podocytes were observed. Podocytes (MPC5) were induced by high-glucose (HG) in vitro and treated with TP or microRNA (miR)-155-5p mimics, with Irbesartan as positive control. Reactive oxygen species (ROS) and levels of oxidative stress (OS) and inflammatory factors in MPC5 were detected. The levels of miR-155-5p, podocyte marker protein Nephrin, and inflammatory factors in mice and MPC5 were detected. The targeting relationship between miR-155-5p and brain-derived neurotrophic factor (BDNF) was verified. The expression levels of BDNF were detected. miR-155-5p mimics and overexpressed (oe)-BDNF plasmids were co-transfected into mouse podocytes treated with HG and TP. TP reduced fasting glucose and 24 h UMA of DN mice, alleviated the pathological damage and podocyte injury, up-regulated Nephrin level, and down-regulated miR-155-5p. TP down-regulated the high expression of miR-155-5p in HG-induced MPC5 cells and inhibited HG-induced OS and inflammatory injury, and the improvement effect of TP was better than Irbesartan. Overexpression of miR-155-5p reversed the protective effect of TP on injured mouse podocytes. miR-155-5p targeted BDNF. oe-BDNF reversed the inhibitory effect of oe-miR-155-5p on TP protection on podocyte injury in mice. Overall, TP up-regulated BDNF by inhibiting miR-155-5p, thus inhibiting OS and inflammatory damage and alleviating podocyte injury in DN mice.
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Affiliation(s)
- Jian Gao
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Zheng Liang
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Fei Zhao
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Xiaojing Liu
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Ning Ma
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
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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.
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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
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Li H, Zhao X, Zheng L, Wang X, Lin S, Shen J, Ren H, Li Y, Qiu Q, Wang Z. Bruceine A protects against diabetic kidney disease via inhibiting galectin-1. Kidney Int 2022; 102:521-535. [DOI: 10.1016/j.kint.2022.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 03/13/2022] [Accepted: 04/06/2022] [Indexed: 10/18/2022]
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Tong X, Qiao Y, Yang Y, Liu H, Cao Z, Yang B, Wei L, Yang H. Applications and Mechanisms of Tripterygium Wilfordii Hook. F. and its Preparations in Kidney Diseases. Front Pharmacol 2022; 13:846746. [PMID: 35387327 PMCID: PMC8977547 DOI: 10.3389/fphar.2022.846746] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/01/2022] [Indexed: 12/19/2022] Open
Abstract
Tripterygium wilfordii Hook. f. (TwHF) is a Chinese botanical drug containing a large number of metabolites. The discovered and recognized anti-inflammatory and immune-regulating effects have made it attract more and more attentions in trials and clinical researches. The extraction and processing of TwHF for pharmaceuticals is a manifestation of the role of traditional Chinese medicine. However, TwHF is toxic. Optimization of TwHF preparations has become a requirement for the development of TwHF pharmaceuticals. Our article introduces the main preparations of TwHF on the Chinese market and their characteristics. In particular, we summarize the clinical applications and influential mechanisms of TwHF and its preparations in kidney diseases. Considering that nephropathy is closely related to immune inflammation and TwHF is a botanical drug with a high number of metabolites, the application of TwHF in kidney diseases may be much more complicated. By revealing the role and mechanisms of TwHF in kidney diseases, this study aims to provide more insights to basic and clinical studies about nephropathy.
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Affiliation(s)
- Xue Tong
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yanheng Qiao
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuanjian Yang
- Tianjin Jinnan Traditional Chinese Medicine Hospital, Tianjin, China
| | - Haizhao Liu
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhiyong Cao
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lijuan Wei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongtao Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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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.
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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.
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Xie D, Li K, Ma T, Jiang H, Wang F, Huang M, Sheng Z, Xie Y. Therapeutic Effect and Safety of Tripterygium Glycosides Combined With Western Medicine on Type 2 Diabetic Kidney Disease: A Meta-Analysis. Clin Ther 2022; 44:246-256.e10. [DOI: 10.1016/j.clinthera.2021.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/23/2021] [Accepted: 12/09/2021] [Indexed: 02/08/2023]
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22
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Tang G, Li S, Zhang C, Chen H, Wang N, Feng Y. Clinical efficacies, underlying mechanisms and molecular targets of Chinese medicines for diabetic nephropathy treatment and management. Acta Pharm Sin B 2021; 11:2749-2767. [PMID: 34589395 PMCID: PMC8463270 DOI: 10.1016/j.apsb.2020.12.020] [Citation(s) in RCA: 127] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/17/2020] [Accepted: 12/25/2020] [Indexed: 12/17/2022] Open
Abstract
Diabetic nephropathy (DN) has been recognized as a severe complication of diabetes mellitus and a dominant pathogeny of end-stage kidney disease, which causes serious health problems and great financial burden to human society worldwide. Conventional strategies, such as renin-angiotensin-aldosterone system blockade, blood glucose level control, and bodyweight reduction, may not achieve satisfactory outcomes in many clinical practices for DN management. Notably, due to the multi-target function, Chinese medicine possesses promising clinical benefits as primary or alternative therapies for DN treatment. Increasing studies have emphasized identifying bioactive compounds and molecular mechanisms of reno-protective effects of Chinese medicines. Signaling pathways involved in glucose/lipid metabolism regulation, antioxidation, anti-inflammation, anti-fibrosis, and podocyte protection have been identified as crucial mechanisms of action. Herein, we summarize the clinical efficacies of Chinese medicines and their bioactive components in treating and managing DN after reviewing the results demonstrated in clinical trials, systematic reviews, and meta-analyses, with a thorough discussion on the relative underlying mechanisms and molecular targets reported in animal and cellular experiments. We aim to provide comprehensive insights into the protective effects of Chinese medicines against DN.
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Key Words
- ACEI, angiotensin-converting enzyme inhibitor
- ADE, adverse event
- AGEs, advanced glycation end-products
- AM, mesangial area
- AMPKα, adenosine monophosphate-activated protein kinase α
- ARB, angiotensin receptor blocker
- AREs, antioxidant response elements
- ATK, protein kinase B
- BAX, BCL-2-associated X protein
- BCL-2, B-cell lymphoma 2
- BCL-XL, B-cell lymphoma-extra large
- BMP-7, bone morphogenetic protein-7
- BUN, blood urea nitrogen
- BW, body weight
- C, control group
- CCR, creatinine clearance rate
- CD2AP, CD2-associated protein
- CHOP, C/EBP homologous protein
- CI, confidence interval
- COL-I/IV, collagen I/IV
- CRP, C-reactive protein
- CTGF, connective tissue growth factor
- Chinese medicine
- D, duration
- DAG, diacylglycerol
- DG, glomerular diameter
- DKD, diabetic kidney disease
- DM, diabetes mellitus
- DN, diabetic nephropathy
- Diabetic kidney disease
- Diabetic nephropathy
- EMT, epithelial-to-mesenchymal transition
- EP, E-prostanoid receptor
- ER, endoplasmic reticulum
- ESRD, end-stage renal disease
- ET-1, endothelin-1
- ETAR, endothelium A receptor
- FBG, fasting blood glucose
- FN, fibronectin
- GCK, glucokinase
- GCLC, glutamate-cysteine ligase catalytic subunit
- GFR, glomerular filtration rate
- GLUT4, glucose transporter type 4
- GPX, glutathione peroxidase
- GRB 10, growth factor receptor-bound protein 10
- GRP78, glucose-regulated protein 78
- GSK-3, glycogen synthase kinase 3
- Gαq, Gq protein alpha subunit
- HDL-C, high density lipoprotein-cholesterol
- HO-1, heme oxygenase-1
- HbA1c, glycosylated hemoglobin
- Herbal medicine
- ICAM-1, intercellular adhesion molecule-1
- IGF-1, insulin-like growth factor 1
- IGF-1R, insulin-like growth factor 1 receptor
- IKK-β, IκB kinase β
- IL-1β/6, interleukin 1β/6
- IR, insulin receptor
- IRE-1α, inositol-requiring enzyme-1α
- IRS, insulin receptor substrate
- IκB-α, inhibitory protein α
- JAK, Janus kinase
- JNK, c-Jun N-terminal kinase
- LC3, microtubule-associated protein light chain 3
- LDL, low-density lipoprotein
- LDL-C, low density lipoprotein-cholesterol
- LOX1, lectin-like oxidized LDL receptor 1
- MAPK, mitogen-activated protein kinase
- MCP-1, monocyte chemotactic protein-1
- MD, mean difference
- MDA, malondialdehyde
- MMP-2, matrix metallopeptidase 2
- MYD88, myeloid differentiation primary response 88
- Molecular target
- N/A, not applicable
- N/O, not observed
- N/R, not reported
- NF-κB, nuclear factor kappa-light-chain-enhancer of activated B cells
- NOX-4, nicotinamide adenine dinucleotide phosphate-oxidase-4
- NQO1, NAD(P)H:quinone oxidoreductase 1
- NRF2, nuclear factor erythroid 2-related factor 2
- OCP, oxidative carbonyl protein
- ORP150, 150-kDa oxygen-regulated protein
- P70S6K, 70-kDa ribosomal protein S6 kinase
- PAI-1, plasminogen activator inhibitor-1
- PARP, poly(ADP-Ribose) polymerase
- PBG, postprandial blood glucose
- PERK, protein kinase RNA-like eukaryotic initiation factor 2A kinase
- PGC-1α, peroxisome proliferator-activated receptor gamma coactivator 1α
- PGE2, prostaglandin E2
- PI3K, phosphatidylinositol 3 kinases
- PINK1, PTEN-induced putative kinase 1
- PKC, protein kinase C
- PTEN, phosphatase and tensin homolog
- RAGE, receptors of AGE
- RASI, renin-angiotensin system inhibitor
- RCT, randomized clinical trial
- ROS, reactive oxygen species
- SCr, serum creatinine
- SD, standard deviation
- SD-rat, Sprague–Dawley rat
- SIRT1, sirtuin 1
- SMAD, small mothers against decapentaplegic
- SMD, standard mean difference
- SMURF-2, SMAD ubiquitination regulatory factor 2
- SOCS, suppressor of cytokine signaling proteins
- SOD, superoxide dismutase
- STAT, signal transducers and activators of transcription
- STZ, streptozotocin
- Signaling pathway
- T, treatment group
- TBARS, thiobarbituric acid-reactive substance
- TC, total cholesterol
- TCM, traditional Chinese medicine
- TFEB, transcription factor EB
- TG, triglyceride
- TGBM, thickness of glomerular basement membrane
- TGF-β, tumor growth factor β
- TGFβR-I/II, TGF-β receptor I/II
- TII, tubulointerstitial injury index
- TLR-2/4, toll-like receptor 2/4
- TNF-α, tumor necrosis factor α
- TRAF5, tumor-necrosis factor receptor-associated factor 5
- UACR, urinary albumin to creatinine ratio
- UAER, urinary albumin excretion rate
- UMA, urinary microalbumin
- UP, urinary protein
- VCAM-1, vascular cell adhesion molecule-1
- VEGF, vascular endothelial growth factor
- WMD, weight mean difference
- XBP-1, spliced X box-binding protein 1
- cAMP, cyclic adenosine monophosphate
- eGFR, estimated GFR
- eIF2α, eukaryotic initiation factor 2α
- mTOR, mammalian target of rapamycin
- p-IRS1, phospho-IRS1
- p62, sequestosome 1 protein
- α-SMA, α smooth muscle actin
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Affiliation(s)
- Guoyi Tang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR 999077, China
| | - Sha Li
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR 999077, China
| | - Cheng Zhang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR 999077, China
| | - Haiyong Chen
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR 999077, China
| | - Ning Wang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR 999077, China
| | - Yibin Feng
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR 999077, China
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23
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Tao M, Zheng D, Liang X, Wu D, Hu K, Jin J, He Q. Tripterygium glycoside suppresses epithelial‑to‑mesenchymal transition of diabetic kidney disease podocytes by targeting autophagy through the mTOR/Twist1 pathway. Mol Med Rep 2021; 24:592. [PMID: 34165172 PMCID: PMC8222798 DOI: 10.3892/mmr.2021.12231] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 03/25/2021] [Indexed: 12/23/2022] Open
Abstract
Tripterygium glycoside (TG) is a traditional Chinese medicine extract with immunosuppressive, anti-inflammatory and anti-renal fibrosis effects. Epithelial-mesenchymal transition (EMT) and cell apoptosis are considered to be the major cause of podocyte injury in diabetic kidney disease (DKD). However, it remains unknown as to whether TG is able to alleviate podocyte injury to prevent DKD progression. Therefore, the present study aimed to clarify the podocyte protective effects of TG on DKD. TG, Twist1 small interfering RNA (siRNA) and Twist1 overexpression vector were added to DKD mouse serum-induced podocytes in vitro. Autophagic and EMT activities were evaluated by immunofluorescence staining and western blot analysis. Apoptotic activity was evaluated by Annexin V-FITC/PI flow cytometric analysis. The results revealed that after treatment with DKD mouse serum, autophagy was decreased, whereas EMT and apoptotic rate were increased, in podocytes. In addition, Twist1 expression was increased in DKD-induced podocytes. Furthermore, following Twist1-small interfering RNA transfection, the DKD-induced podocyte EMT and apoptotic rate were markedly reduced, indicating that Twist1 may be a promising therapeutic target for DKD. The present results also revealed that overexpression of Twist1 increased podocyte apoptosis, although this was decreased after TG treatment, indicating that TG may exhibit a protective effect on podocytes by inhibiting the Twist1 signaling pathway. After the addition of 3-benzyl-5-((2-nitrophenoxy) methyl)-dihydrofuran-2(3H)-one, an activator of mTORC1, the effects of TG on podocyte EMT, apoptosis and the autophagy were reversed. These findings indicated that TG may alleviate EMT and apoptosis by upregulating autophagy through the mTOR/Twist1 signaling pathway in DKD.
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Affiliation(s)
- Mei Tao
- Department of Nephrology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang 310015, P.R. China
| | - Danna Zheng
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Xudong Liang
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Diandian Wu
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Kang Hu
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Juan Jin
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Qiang He
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
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24
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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.
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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
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25
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Zhao M, Yu Y, Wang R, Chang M, Ma S, Qu H, Zhang Y. Mechanisms and Efficacy of Chinese Herbal Medicines in Chronic Kidney Disease. Front Pharmacol 2021; 11:619201. [PMID: 33854427 PMCID: PMC8039908 DOI: 10.3389/fphar.2020.619201] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/17/2020] [Indexed: 12/13/2022] Open
Abstract
As the current treatment of chronic kidney disease (CKD) is limited, it is necessary to seek more effective and safer treatment methods, such as Chinese herbal medicines (CHMs). In order to clarify the modern theoretical basis and molecular mechanisms of CHMs, we reviewed the knowledge based on publications in peer-reviewed English-language journals, focusing on the anti-inflammatory, antioxidative, anti-apoptotic, autophagy-mediated and antifibrotic effects of CHMs commonly used in kidney disease. We also discussed recently published clinical trials and meta-analyses in this field. Based on recent studies regarding the mechanisms of kidney disease in vivo and in vitro, CHMs have anti-inflammatory, antioxidative, anti-apoptotic, autophagy-mediated, and antifibrotic effects. Several well-designed randomized controlled trials (RCTs) and meta-analyses demonstrated that the use of CHMs as an adjuvant to conventional medicines may benefit patients with CKD. Unknown active ingredients, low quality and small sample sizes of some clinical trials, and the safety of CHMs have restricted the development of CHMs. CHMs is a potential method in the treatment of CKD. Further study on the mechanism and well-conducted RCTs are urgently needed to evaluate the efficacy and safety of CHMs.
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Affiliation(s)
- Mingming Zhao
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yi Yu
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Beijing University of Chinese Medicine, Beijing, China
| | - Rumeng Wang
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Beijing University of Chinese Medicine, Beijing, China
| | - Meiying Chang
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Sijia Ma
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hua Qu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,NMPA Key Laboratory for Clinical Research and Evaluation of Traditional Chinese Medicine, Beijing, China.,National Clinical Research Center for Chinese Medicine Cardiology, Beijing, China
| | - Yu Zhang
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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26
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Pei T, Yan M, Kong Y, Fan H, Liu J, Cui M, Fang Y, Ge B, Yang J, Zhao Q. The genome of Tripterygium wilfordii and characterization of the celastrol biosynthesis pathway. GIGABYTE 2021; 2021:gigabyte14. [PMID: 36967728 PMCID: PMC10038137 DOI: 10.46471/gigabyte.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 02/25/2021] [Indexed: 11/09/2022] Open
Abstract
Tripterygium wilfordii is a vine from the Celastraceae family that is used in traditional Chinese medicine (TCM). The active ingredient, celastrol, is a friedelane-type pentacyclic triterpenoid with putative roles as an antitumor, immunosuppressive, and anti-obesity agent. Here, we report a reference genome assembly of T. wilfordii with high-quality annotation using a hybrid sequencing strategy. The total genome size obtained is 340.12 Mb, with a contig N50 value of 3.09 Mb. We successfully anchored 91.02% of sequences into 23 pseudochromosomes using high-throughput chromosome conformation capture (Hi–C) technology. The super-scaffold N50 value was 13.03 Mb. We also annotated 31,593 structural genes, with a repeat percentage of 44.31%. These data demonstrate that T. wilfordii diverged from Malpighiales species approximately 102.4 million years ago. By integrating genome, transcriptome and metabolite analyses, as well as in vivo and in vitro enzyme assays of two cytochrome P450 (CYP450) genes, TwCYP712K1 and TwCYP712K2, it is possible to investigate the second biosynthesis step of celastrol and demonstrate that this was derived from a common ancestor. These data provide insights and resources for further investigation of pathways related to celastrol, and valuable information to aid the conservation of resources, as well as understand the evolution of Celastrales.
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Affiliation(s)
- Tianlin Pei
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
- State Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Mengxiao Yan
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Yu Kong
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Hang Fan
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
- State Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Jie Liu
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Mengying Cui
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Yumin Fang
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Binjie Ge
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Jun Yang
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
- State Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Qing Zhao
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
- State Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
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27
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Auclair N, Sané AT, Delvin E, Spahis S, Levy E. Phospholipase D as a Potential Modulator of Metabolic Syndrome: Impact of Functional Foods. Antioxid Redox Signal 2021; 34:252-278. [PMID: 32586106 DOI: 10.1089/ars.2020.8081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Significance: Cardiometabolic disorders (CMD) are composed of a plethora of metabolic dysfunctions such as dyslipidemia, nonalcoholic fatty liver disease, insulin resistance, and hypertension. The development of these disorders is highly linked to inflammation and oxidative stress (OxS), two metabolic states closely related to physiological and pathological conditions. Given the drastically rising CMD prevalence, the discovery of new therapeutic targets/novel nutritional approaches is of utmost importance. Recent Advances: The tremendous progress in methods/technologies and animal modeling has allowed the clarification of phospholipase D (PLD) critical roles in multiple cellular processes, whether directly or indirectly via phosphatidic acid, the lipid product mediating signaling functions. In view of its multiple features and implications in various diseases, PLD has emerged as a drug target. Critical Issues: Although insulin stimulates PLD activity and, in turn, PLD regulates insulin signaling, the impact of the two important PLD isoforms on the metabolic syndrome components remains vague. Therefore, after outlining PLD1/PLD2 characteristics and functions, their role in inflammation, OxS, and CMD has been analyzed and critically reported in the present exhaustive review. The influence of functional foods and nutrients in the regulation of PLD has also been examined. Future Directions: Available evidence supports the implication of PLD in CMD, but only few studies emphasize its mechanisms of action and specific regulation by nutraceutical compounds. Therefore, additional investigations are first needed to clarify the functional role of nutraceutics and, second, to elucidate whether targeting PLDs with food compounds represents an appropriate therapeutic strategy to treat CMD. Antioxid. Redox Signal. 34, 252-278.
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Affiliation(s)
- Nickolas Auclair
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada.,Department of Pharmacology & Physiology and Université de Montréal, Montreal, Quebec, Canada
| | - Alain T Sané
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Edgard Delvin
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Schohraya Spahis
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada.,Department of Nutrition, Université de Montréal, Montreal, Quebec, Canada
| | - Emile Levy
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada.,Department of Pharmacology & Physiology and Université de Montréal, Montreal, Quebec, Canada.,Department of Nutrition, Université de Montréal, Montreal, Quebec, Canada
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28
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Macrophage Phenotype and Fibrosis in Diabetic Nephropathy. Int J Mol Sci 2020; 21:ijms21082806. [PMID: 32316547 PMCID: PMC7215738 DOI: 10.3390/ijms21082806] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 12/17/2022] Open
Abstract
Diabetic nephropathy (DN) is the leading cause of end-stage renal disease globally. The primary initiating mechanism in DN is hyperglycemia-induced vascular dysfunction, but its progression is due to different pathological mechanisms, including oxidative stress, inflammatory cells infiltration, inflammation and fibrosis. Macrophages (Mφ) accumulation in kidneys correlates strongly with serum creatinine, interstitial myofibroblast accumulation and interstitial fibrosis scores. However, whether or not Mφ polarization is involved in the progression of DN has not been adequately defined. The prevalence of the different phenotypes during the course of DN, the existence of hybrid phenotypes and the plasticity of these cells depending of the environment have led to inconclusive results. In the same sense the role of the different macrophage phenotype in fibrosis associated or not to DN warrants additional investigation into Mφ polarization and its role in fibrosis. Due to the association between fibrosis and the progressive decline of renal function in DN, and the role of the different phenotypes of Mφ in fibrosis, in this review we examine the role of macrophage phenotype control in DN and highlight the potential factors contributing to phenotype change and injury or repair in DN.
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29
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Huang WJ, Liu WJ, Xiao YH, Zheng HJ, Xiao Y, Jia Q, Jiang HX, Zhu ZB, Xia CH, Han XT, Sun RX, Nan H, Feng ZD, Wang SD, Zhao JX. Tripterygium and its extracts for diabetic nephropathy: Efficacy and pharmacological mechanisms. Biomed Pharmacother 2020; 121:109599. [DOI: 10.1016/j.biopha.2019.109599] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/21/2019] [Accepted: 10/26/2019] [Indexed: 01/04/2023] Open
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30
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Yuan K, Li X, Lu Q, Zhu Q, Jiang H, Wang T, Huang G, Xu A. Application and Mechanisms of Triptolide in the Treatment of Inflammatory Diseases-A Review. Front Pharmacol 2019; 10:1469. [PMID: 31866868 PMCID: PMC6908995 DOI: 10.3389/fphar.2019.01469] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 11/13/2019] [Indexed: 12/19/2022] Open
Abstract
Bioactive compounds from medicinal plants with anti-inflammatory and immunosuppressive effects have been emerging as important sources of drugs for the treatment of inflammatory disorders. Triptolide, a diterpene triepoxide, is a pharmacologically active compound isolated from Tripterygium wilfordii Hook F (TwHF) that is used as a remedy for inflammatory and autoimmune diseases. As the most promising bioactive compound obtained from TwHF, triptolide has attracted considerable interest recently, especially for its potent anti-inflammatory and immunosuppressive activities. Over the past few years, an increasing number of studies have been published emphasizing the value of triptolide in the treatment of diverse inflammatory disorders. Here, we systematically review the mechanism of action and the therapeutic properties of triptolide in various inflammatory diseases according to different systematic organs, including lupus nephritis, inflammatory bowel disease, asthma, and rheumatoid arthritis with pubmed and Embase. Based on this review, potential research strategies might contribute to the clinical application of triptolide in the future.
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Affiliation(s)
- Kai Yuan
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaohong Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Qingyi Lu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Qingqing Zhu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Haixu Jiang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Ting Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Guangrui Huang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Anlong Xu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.,State Key Laboratory of Biocontrol, Department of Biochemistry, School of Life Sciences, Sun Yat-Sen (Zhongshan) University, Guangzhou, China
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31
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Xiong C, Li L, Bo W, Chen H, XiaoWei L, Hongbao L, Peng Z. Evaluation of the efficacy and safety of TWHF in diabetic nephropathy patients with overt proteinuria and normal eGFR. J Formos Med Assoc 2019; 119:685-692. [PMID: 31801679 DOI: 10.1016/j.jfma.2019.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 10/14/2019] [Accepted: 11/04/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND/PURPOSE The aim of this study was to evaluate the efficacy and safety of Tripterygium Wilfordii Hook F (TWHF) in DN patients with overt proteinuria and normal eGFR. METHODS 124 eligible DN patients were randomly assigned into two groups to receive either valsartan 160 mg/d treatment (control group) or TWHF 60 mg/d plus valsartan 160 mg/d treatments (TWHF group) for 24 weeks. The changes of clinical, biochemical data and adverse events during observation period were all analyzed. The primary endpoint was a reduction in 24-h urine protein excretion between baseline and the end of study, the secondary endpoint was to observe the change in estimated glomerular filtration rate (eGFR) between two groups. RESULTS After treatment, there was a more significant decrease in proteinuria in patients who received TWHF treatment (from 4.95 ± 1.27 g/24 h to 3.36 ± 0.83 g/24 h) compared to valsartan monotherapy (from 5.21 ± 1.59 g/24 h to 4.52 ± 1.06 g/24 h). The percentage change in urine protein excretion was -32.12% in TWHF group and -13.24% in valsartan group. Patients' plasma albumin in TWHF group (from 32.53 ± 5.24 g/L to 36.91 ± 4.42 g/L) was higher than that in control group (from 33.18 ± 4.87 g/L to 34.67 ± 4.75 g/L). No significant change in blood pressure, blood glucose, eGFR, and serum potassium was observed. But the adverse events in TWHF group were higher than those in control group. CONCLUSION TWHF is more effective than valsartan monotherapy in reduction of proteinuria in DN patients with overt proteinuria and normal eGFR, but with more adverse effects.
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Affiliation(s)
- Chang Xiong
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China; Department of Nephrology, Yulin First Hospital, Yulin, 718000, Shaanxi Province, China
| | - Li Li
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Wang Bo
- Department of Clinical Epidemiology, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Huang Chen
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Liu XiaoWei
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Liu Hongbao
- Department of Nephrology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi Province, China.
| | - Zhang Peng
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China.
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32
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Salehi B, Ata A, V. Anil Kumar N, Sharopov F, Ramírez-Alarcón K, Ruiz-Ortega A, Abdulmajid Ayatollahi S, Valere Tsouh Fokou P, Kobarfard F, Amiruddin Zakaria Z, Iriti M, Taheri Y, Martorell M, Sureda A, N. Setzer W, Durazzo A, Lucarini M, Santini A, Capasso R, Adrian Ostrander E, -ur-Rahman A, Iqbal Choudhary M, C. Cho W, Sharifi-Rad J. Antidiabetic Potential of Medicinal Plants and Their Active Components. Biomolecules 2019; 9:E551. [PMID: 31575072 PMCID: PMC6843349 DOI: 10.3390/biom9100551] [Citation(s) in RCA: 239] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/17/2019] [Accepted: 09/25/2019] [Indexed: 12/11/2022] Open
Abstract
Diabetes mellitus is one of the major health problems in the world, the incidence and associated mortality are increasing. Inadequate regulation of the blood sugar imposes serious consequences for health. Conventional antidiabetic drugs are effective, however, also with unavoidable side effects. On the other hand, medicinal plants may act as an alternative source of antidiabetic agents. Examples of medicinal plants with antidiabetic potential are described, with focuses on preclinical and clinical studies. The beneficial potential of each plant matrix is given by the combined and concerted action of their profile of biologically active compounds.
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Affiliation(s)
- Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam 44340847, Iran;
| | - Athar Ata
- Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, Winnipeg, MB R3B 2G3, Canada;
| | - Nanjangud V. Anil Kumar
- Department of Chemistry, Manipal Institute of Technology, Manipal University, Manipal 576104, India;
| | - Farukh Sharopov
- Department of Pharmaceutical Technology, Avicenna Tajik State Medical University, Rudaki 139, Dushanbe 734003, Tajikistan;
| | - Karina Ramírez-Alarcón
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepcion, Concepción 4070386, Chile;
| | - Ana Ruiz-Ortega
- Facultad de Educación y Ciencias Sociales, Universidad Andrés Bello, Autopista Concepción—Talcahuano, Concepción 7100, Chile;
| | - Seyed Abdulmajid Ayatollahi
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran; (S.A.A.); (F.K.); (Y.T.)
- Department of Pharmacognosy, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 11369, Iran
| | - Patrick Valere Tsouh Fokou
- Department of Biochemistry, Faculty of Science, University of Yaounde 1, Yaounde P.O. Box 812, Cameroon;
| | - Farzad Kobarfard
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran; (S.A.A.); (F.K.); (Y.T.)
- Department of Medicinal Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 11369, Iran
| | - Zainul Amiruddin Zakaria
- Laboratory of Halal Science Research, Halal Products Research Institute, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;
- Integrative Pharmacogenomics Institute (iPROMISE), Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, Bandar Puncak Alam Selangor 42300, Malaysia
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy
| | - Yasaman Taheri
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran; (S.A.A.); (F.K.); (Y.T.)
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepcion, Concepción 4070386, Chile;
- Universidad de Concepción, Unidad de Desarrollo Tecnológico, UDT, Concepción 4070386, Chile
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress, Laboratory of Physical Activity Sciences, and CIBEROBN—Physiopathology of Obesity and Nutrition, CB12/03/30038, University of Balearic Islands, E-07122 Palma de Mallorca, Spain;
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA;
| | - Alessandra Durazzo
- CREA—Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy; (A.D.); (M.L.)
| | - Massimo Lucarini
- CREA—Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy; (A.D.); (M.L.)
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano, 49-80131 Napoli, Italy
| | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy;
| | - Elise Adrian Ostrander
- Medical Illustration, Kendall College of Art and Design, Ferris State University, Grand Rapids, MI 49503, USA;
| | - Atta -ur-Rahman
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.-u.-R.); (M.I.C.)
| | - Muhammad Iqbal Choudhary
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.-u.-R.); (M.I.C.)
| | - William C. Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, China
| | - Javad Sharifi-Rad
- Department of Pharmacology, Faculty of Medicine, Jiroft University of Medical Sciences, Jiroft 7861756447, Iran
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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]
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Wang H, Zhang Z, Sun J. The clinical evaluation of combined detection of microcirculation, lipid metabolism, and inflammatory-related factors in the treatment of diabetic nephropathy with atorvastatin. EUR J INFLAMM 2019. [DOI: 10.1177/2058739219847830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This study was designed to analyze the effects of atorvastatin on microcirculation, blood lipids, inflammatory factors, and characteristic markers in patients with diabetic nephropathy. A total of 170 patients with diabetic nephropathy randomly divided into control and study groups with 85 patients in each group. The control group was treated with diet and lifestyle intervention, and hypoglycemic drugs. The study group was additionally treated with atorvastatin. Nitric oxide (NO), endothelin-1 (ET-1), thromboxane-2 (TXB2), 6-ketone-prostaglandin F-1α (6-Keto-PGF-1α), superoxide dismutase (SOD), total cholesterol (TC), triacylglycerols (TGs), low-density lipoprotein (LDL), high-density lipoprotein (HDL), C-reactive protein (CRP), tumor necrosis factor alpha (TNF-α), interleukin-6 (IL-6), homocysteine (Hcy), cystatin C (CysC), and vascular endothelial growth factor (VEGF) levels were observed for 8 weeks. Post-treatment of atorvastatin, the levels of NO, 6-Keto-PGF-1α, and SOD were significantly higher than pre-treatment in both groups, while the levels of ET-1 and TXB2 were lower than pre-treatment ( P < 0.05). The levels of NO, 6-Keto-PGF-1α, and SOD in the study group post-treatment were significantly higher ( P < 0.05) than the control group, and the levels of ET-1 and TXB2 in the study group were lower than the control group. After 8 weeks, the levels of TC, TG, and LDL were significantly lower, while the level of HDL was significantly higher in the study group. The level of TC was lower in the control group of post-treatment, while the HDL level was higher than pre-treatment ( P < 0.05). The levels of CRP, TNF-α, and IL-6 in the study group of post-treatment were significantly lower than pre-treatment comparing to the control group ( P < 0.05). There was no statistical significance ( P > 0.05) for above-mentioned indicators in control groups of pre- and post-treatment. The levels of VEGF, CysC, and Hcy in the two groups were lower than pre-treatment. Atorvastatin could effectively improve all the study parameters.
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Affiliation(s)
- Haicheng Wang
- Department of Nephrology, Linyi Central Hospital, Linyi, P.R. China
| | - Zhengfang Zhang
- Department of Nephrology, Linyi Central Hospital, Linyi, P.R. China
| | - Jiali Sun
- Department of Nephrology, Haiyang People’s Hospital, Haiyang, P.R. China
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A Glimpse of the Mechanisms Related to Renal Fibrosis in Diabetic Nephropathy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1165:49-79. [PMID: 31399961 DOI: 10.1007/978-981-13-8871-2_4] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Diabetic nephropathy (DN) is a common kidney disease in people with diabetes, which is also a serious microvascular complication of diabetes and the main cause of end-stage renal disease (ESRD) in developed and developing countries. Renal fibrosis is a finally pathological change in DN. Nevertheless, the relevant mechanism of cause to renal fibrosis in DN is still complex. In this review, we summarized that the role of cell growth factors, epithelial-mesenchymal transition (EMT) in the renal fibrosis of DN, we also highlighted the miRNA and inflammatory cells, such as macrophage, T lymphocyte, and mastocyte modulate the progression of DN. In addition, there are certain other mechanisms that may yet be conclusively defined. Recent studies demonstrated that some of the new signaling pathways or molecules, such as Notch, Wnt, mTOR, Epac-Rap-1 pathway, may play a pivotal role in the modulation of ECM accumulation and renal fibrosis in DN. This review aims to elucidate the mechanism of renal fibrosis in DN and has provided new insights into possible therapeutic interventions to inhibit renal fibrosis and delay the development of DN.
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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.
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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
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Li L, Qi J, Li H. Natural Products Modulating Autophagy Pathway Against the Pathogenesis of Diabetes Mellitus. Curr Drug Targets 2018; 20:96-110. [DOI: 10.2174/1389450119666180726115805] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/07/2018] [Accepted: 06/21/2018] [Indexed: 01/19/2023]
Abstract
Autophagy is a conserved, regulated cellular process for the degradation of abnormal proteins
and disrupted organelles. Literature has described that dysregulation of autophagy is closely related
to the pathogenesis of diabetes mellitus in processes such as impaired pancreatic β cells function,
peripheral insulin resistance and diabetic complications. Emerging evidence indicates that natural
products may possess anti-diabetic activity via regulation of autophagy. In this review, we summarize
natural products targeting the pathogenesis of diabetes mellitus through the regulation of autophagy
and underline possible mechanisms, providing potential drug candidates or therapies for the treatment
of diabetes mellitus.
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Affiliation(s)
- Linghuan Li
- Institute of Pharmacology, Department of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jiameng Qi
- Institute of Pharmacology, Department of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hanbing Li
- Institute of Pharmacology, Department of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
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Xue M, Cheng Y, Han F, Chang Y, Yang Y, Li X, Chen L, Lu Y, Sun B, Chen L. Triptolide Attenuates Renal Tubular Epithelial-mesenchymal Transition Via the MiR-188-5p-mediated PI3K/AKT Pathway in Diabetic Kidney Disease. Int J Biol Sci 2018; 14:1545-1557. [PMID: 30263007 PMCID: PMC6158722 DOI: 10.7150/ijbs.24032] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 02/16/2018] [Indexed: 01/06/2023] Open
Abstract
Triptolide possesses the trait of renal protection. Epithelial-mesenchymal transition (EMT) is closely linked to the pathogenesis of diabetic kidney disease (DKD). MicroRNAs have recently emerged as critical regulators of DKD. However, it is poorly understood whether triptolide alleviates renal EMT by regulating microRNAs in DKD. In this study, we found that triptolide decreased albuminuria, improved the renal structure and reduced renal EMT in rats with DKD. Furthermore, activation of the PI3K/AKT signaling pathway was increased in diabetic rats, which was partly reversed by triptolide. Triptolide also alleviated glucose-induced EMT in HK-2 cells in vitro. PI3K/AKT signaling pathway activation was reduced after triptolide treatment. Moreover, triptolide decreased the increase in miR-188-5p expression stimulated by high glucose levels in HK-2 cells. miR-188-5p inhibited PTEN expression by directly interacting with the PTEN 3'-untranslated region. Additionally, downregulation of miR-188-5p, which imitates the effects of triptolide, attenuated the activation of the PI3K/AKT pathway and HG-induced EMT, whereas miR-188-5p overexpression reversed the effects of triptolide on the PI3K/AKT pathway and EMT. In conclusion, we demonstrated that triptolide ameliorates renal EMT via the PI3K/AKT signaling pathway through the interaction between miR-188-5p and PTEN, indicating that miR-188-5p may be a therapeutic target of triptolide in DKD.
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Affiliation(s)
- Mei Xue
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Ying Cheng
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Fei Han
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Yunpeng Chang
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Yang Yang
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Xiaoyu Li
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Li Chen
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Yunhong Lu
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Bei Sun
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Liming Chen
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
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Chang B, Chen W, Zhang Y, Yang P, Liu L. Tripterygium wilfordii mitigates hyperglycemia-induced upregulated Wnt/β-catenin expression and kidney injury in diabetic rats. Exp Ther Med 2018; 15:3874-3882. [PMID: 29581743 PMCID: PMC5863604 DOI: 10.3892/etm.2018.5901] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/02/2018] [Indexed: 01/09/2023] Open
Abstract
Aberrant activation of the Wnt/β-catenin pathway contributes to the development of diabetic nephropathy (DN); however, treatment with Tripterygium wilfordii (TW) may be beneficial for patients with DN. The aim of the present study was to evaluate the effect of TW on Wnt/β-catenin expression in the kidneys of diabetic rats. Male Sprague-Dawley rats were randomly injected with vehicle (control) or streptozotocin to induce diabetes. Diabetic rats were then randomly treated with vehicle (sodium carboxymethyl cellulose; SCC), TW combined with SCC (8 or 16 mg/kg) or irbesartan (50 mg/kg) daily for 8 weeks. Metabolic parameter levels and renal pathological changes were examined. mRNA and protein expression of Wnt-1, glycogen synthase kinase (GSK)-3β, β-catenin, nuclear factor (NF)-κB and transforming growth factor (TGF)-β1 in the kidneys of rats from all groups were measured. Compared with the DM group, metabolic parameters and morphological parameters, apart from blood glucose levels, were significantly improved in TW-treated rats (all P<0.01). Furthermore, levels of Wnt-1, β-catenin, NF-κB-p65 and TGF-β1 mRNA and protein were significantly reduced in the kidneys of TW-treated rats compared with DM rats, whereas levels of GSK-3β mRNA and protein did not differ significantly between any of the groups; however, the expression of P-GSK-3β protein was significantly decreased in the kidneys of TW-treated rats compared with the DM group. The protective effects of TW tended to be dose-dependent and were an improvement compared with irbesartan treatment in diabetic rats. Therefore, the results of the present study indicated that treatment with TW mitigated hyperglycemia-induced upregulated Wnt-1 and β-catenin expression in kidney tissues and ameliorated diabetes-induced kidney injury in rats.
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Affiliation(s)
- Baochao Chang
- Department of Nephrology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Weidong Chen
- Department of Nephrology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Yan Zhang
- Department of Nephrology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Ping Yang
- Department of Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Lei Liu
- Department of Nephrology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
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40
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Chen SR, Dai Y, Zhao J, Lin L, Wang Y, Wang Y. A Mechanistic Overview of Triptolide and Celastrol, Natural Products from Tripterygium wilfordii Hook F. Front Pharmacol 2018; 9:104. [PMID: 29491837 PMCID: PMC5817256 DOI: 10.3389/fphar.2018.00104] [Citation(s) in RCA: 194] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 01/30/2018] [Indexed: 12/28/2022] Open
Abstract
Triptolide and celastrol are predominantly active natural products isolated from the medicinal plant Tripterygium wilfordii Hook F. These compounds exhibit similar pharmacological activities, including anti-cancer, anti-inflammation, anti-obesity, and anti-diabetic activities. Triptolide and celastrol also provide neuroprotection and prevent cardiovascular and metabolic diseases. However, toxicity restricts the further development of triptolide and celastrol. In this review, we comprehensively review therapeutic targets and mechanisms of action, and translational study of triptolide and celastrol. We systemically discuss the structure-activity-relationship of triptolide, celastrol, and their derivatives. Furthermore, we propose the use of structural derivatives, targeted therapy, and combination treatment as possible solutions to reduce toxicity and increase therapeutic window of these potent natural products from T. wilfordii Hook F.
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Affiliation(s)
- Shao-Ru Chen
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yan Dai
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ying Wang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
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41
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Wei J, Zhang J, Wang L, Cha BJ, Jiang S, Liu R. A new low-nephron CKD model with hypertension, progressive decline of renal function, and enhanced inflammation in C57BL/6 mice. Am J Physiol Renal Physiol 2018; 314:F1008-F1019. [PMID: 29412703 DOI: 10.1152/ajprenal.00574.2017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Chronic kidney disease (CKD) is a major health issue in the US. The typical five-sixths nephrectomy (typical 5/6 NX) is a widely used experimental CKD model. However, the typical 5/6 NX model is hypertensive in rats but strain dependent in mice. In particular, C57BL/6 mice with the typical 5/6 NX exhibits normal blood pressure and well-preserved renal function. The goal of the present study was to create a new hypertensive CKD model in C57BL/6 mice. We first characterized the vascular architecture originated from each renal artery branch by confocal laser-scanning microscopy with fluorescent lectin. Then, a novel 5/6 NX-BL model was generated by uninephrectomy combined with 2/3 renal infarction via a ligation of upper renal artery branch on the contralateral kidney. Compared with 5/6 NX-C, the 5/6 NX-BL model exhibited elevated mean arterial pressure (137.6 ± 13.9 vs. 104.7 ± 8.2 mmHg), decreased glomerular filtration rate (82.9 ± 19.2 vs. 125.0 ± 13.9 µl/min) with a reciprocal increase in plasma creatinine (0.31 ± 0.03 vs. 0.19 ± 0.04 mg/dl), and significant renal injury as assessed by proteinuria, histology with light, and transmission electron microscopy. In addition, inflammatory status, as indicated by the level of proinflammatory cytokine TNFα and the leukocyte counts, was significantly upregulated in 5/6 NX-BL compared with the 5/6 NX-C. In summary, we developed a new hypertensive CKD model in C57BL/6 mice with 5/6 renal mass reduction by uninephrectomy and upper renal artery branch ligation on the contralateral kidney. This 5/6 NX-BL model exhibits an infarction zone-dependent hypertension and progressive deterioration of the renal function accompanied by enhanced inflammatory response.
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Affiliation(s)
- Jin Wei
- Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine , Tampa, Florida
| | - Jie Zhang
- Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine , Tampa, Florida
| | - Lei Wang
- Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine , Tampa, Florida
| | - Byeong Jake Cha
- Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine , Tampa, Florida
| | - Shan Jiang
- Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine , Tampa, Florida
| | - Ruisheng Liu
- Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine , Tampa, Florida
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42
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Xie Z, Zeng X, Li X, Wu B, Shen G, Wu Q, Wu C. Curcumin attenuates oxidative stress in liver in Type 1 diabetic rats. Open Life Sci 2017. [DOI: 10.1515/biol-2017-0053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractWe investigated the effect of curcumin on liver anti-oxidative stress in the type 1 diabetic rat model induced by streptozotocin (STZ). Experimental diabetic rats were induced by STZ intraperitoneally. All rats were fed for 21 days including three groups of control (NC), diabetic model (DC) and curcumin-treated (Cur, 1.5 g/kg by gavage). The results showed that curcumin-treatment significantly decreased the blood glucose and plasma malondialdehyde levels, but significantly increased the plasma superoxide dismutase, glutathione peroxidase and reduced glutathione levels. Curcumin treatment decreased the activity of aldose reductase, but increased the plasma glucose-6-phosphate dehydrogenase, glucose synthetase and glucose-polymerizing activities. Curcumin treatment significantly decreased the protein of protein kinase C (PKC) and poly ADP ribose polymerase (PARP) expression in the Cur group compared with the DC group. Moreover, the sorbitol dehydrogenase activity was significantly decreased and deterred glucose enters into the polyol pathway leading to an increased NADPH content in the Cur group compared with the DC group. Our data provides evidence that oxidative stress in diabetic rats may be attenuated by curcumin by inhibiting polyol pathway associated with down-regulated expression of PKC and PARP, as evidenced by both an increase the antioxidant enzymes levels and glycogen biosynthesis enzymes activities.
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Affiliation(s)
- Zhenglu Xie
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
- Collaborative Innovation Center of animal health and food safety application technology in Fujian, Fujian Vocational College of Agriculture, Fuzhou City, 350119, Fujian Province, P.R. China
| | - Xinqi Zeng
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Xiaqing Li
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Binbin Wu
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Guozhi Shen
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Qianying Wu
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Changbiao Wu
- Collaborative Innovation Center of animal health and food safety application technology in Fujian, Fujian Vocational College of Agriculture, Fuzhou City, 350119, Fujian Province, P.R. China
- Fujian Vocational College of Bioengineering, Fuzhou City, Fujian Province, P.R. China
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43
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Wen Y, Yan M, Zhang B, Li P. Chinese medicine for diabetic kidney disease in China. Nephrology (Carlton) 2017; 22 Suppl 4:50-55. [PMID: 29155500 DOI: 10.1111/nep.13149] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Yumin Wen
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science; China-Japan Friendship Hospital; Beijing China
| | - Meihua Yan
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science; China-Japan Friendship Hospital; Beijing China
| | - Bingxuan Zhang
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science; China-Japan Friendship Hospital; Beijing China
| | - Ping Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science; China-Japan Friendship Hospital; Beijing China
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44
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Xie Z, Wu B, Shen G, Li X, Wu Q. Curcumin alleviates liver oxidative stress in type 1 diabetic rats. Mol Med Rep 2017; 17:103-108. [PMID: 29115468 PMCID: PMC5780069 DOI: 10.3892/mmr.2017.7911] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 10/13/2017] [Indexed: 12/19/2022] Open
Abstract
The aim of the present study was to determine the effects of curcumin on antioxidants using a rat model of type 1 diabetes. Seven-week-old male Sprague-Dawley rats were injected with Streptozotocin (STZ) intraperitoneally to induce this model, and then treated with 1.0% curcumin (weight ratio) mixed in their diet for 21 days. The present study included three groups: Control group (NC), diabetic rat model group (DC) and a curcumin treated group (Diab-Cur). The results demonstrated that curcumin treatment markedly decreased the blood glucose levels, plasma malondialdehyde concentration and plasma activity of glutathione peroxidase (GSH-Px) and catalase (CAT); however, it increased the plasma superoxide dismutase (SOD) and insulin levels. Curcumin treatment increased the expression of the CAT, GSH-Px, HO-1 and norvegicus NAD(P)H quinone dehydrogenase 1, and decreased the SOD1 expression, which, led to a diminished oxidative stress status. In addition, curcumin treatment significantly increased the protein expression of Keap1 in the Diab-Cur group when compared with the DC group, decreased cytosolic concentrations of Nrf2 while increasing nuclear accumulation of Nrf2. The results provide evidence that oxidative stress in the STZ-induced diabetic rat model may be attenuated by curcumin via the activation of the Keap1-Nrf2-ARE signaling pathway, as evidenced by a decrease in the blood glucose concentration and an increase in the transcription of several antioxidant genes.
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Affiliation(s)
- Zhenglu Xie
- Department of Agriculture and Biotechnology, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P.R. China
| | - Binbin Wu
- Department of Agriculture and Biotechnology, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P.R. China
| | - Guozhi Shen
- Department of Agriculture and Biotechnology, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P.R. China
| | - Xiaqing Li
- Department of Agriculture and Biotechnology, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P.R. China
| | - Qianying Wu
- Department of Agriculture and Biotechnology, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P.R. China
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Sasaki T, Tsuboi N, Haruhara K, Okabayashi Y, Kanzaki G, Koike K, Kobayashi A, Yamamoto I, Ogura M, Yokoo T. Bowman Capsule Volume and Related Factors in Adults With Normal Renal Function. Kidney Int Rep 2017; 3:314-320. [PMID: 29725634 PMCID: PMC5932303 DOI: 10.1016/j.ekir.2017.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 10/07/2017] [Accepted: 10/16/2017] [Indexed: 01/22/2023] Open
Abstract
Introduction Alterations in glomerular filtration can considerably influence the dynamics and functions of the Bowman capsule. Despite the potentially important role in maintaining normal renal functions, few studies have focused on Bowman capsule volume in normal human kidneys. Methods We analyzed specimens from biopsies performed 1 hour after kidney transplantation from living donors without apparent renal disease. The measurements of all cross-sectional areas of the Bowman capsules and glomerular capillaries were used to estimate the mean Bowman capsule volume (BV) and glomerular capillary volume (GV) in each subject. The G/B ratio was defined as the ratio of GV to BV. The morphometric findings were examined in relation to the clinical findings in donors just before kidney transplantation. Results We analyzed 37 adults with a mean creatinine clearance of 111 ml/min. The mean BV and GV of these subjects were 6.10 ± 2.46 × 106 μm3 and 3.83 ± 1.52 × 106 μm3, respectively. Both the BV and GV varied up to 6-fold and were significantly higher in elderly, obese, or hypertensive subjects in comparison to nonelderly, nonobese, or normotensive subjects, whereas the renal function of each subgroup was similar. The G/B ratio (0.63 ± 0.05) was unaffected, and BV and GV were strongly correlated regardless of these clinical factors (r = 0.980 [95% confidence interval = 0.961−0.990], P < 0.001). Conclusion In the normal adult kidney, there may be an optimal BV to GV ratio for maintaining effective filtration in a variety of clinical situations, including advanced age, obesity, and hypertension.
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Affiliation(s)
- Takaya Sasaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
- Correspondence: Nobuo Tsuboi, Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-Ku, Tokyo, Japan.
| | - Kotaro Haruhara
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yusuke Okabayashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Go Kanzaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kentaro Koike
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Akimitsu Kobayashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Izumi Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Makoto Ogura
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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Han F, Xue M, Chang Y, Li X, Yang Y, Sun B, Chen L. Triptolide Suppresses Glomerular Mesangial Cell Proliferation in Diabetic Nephropathy Is Associated with Inhibition of PDK1/Akt/mTOR Pathway. Int J Biol Sci 2017; 13:1266-1275. [PMID: 29104493 PMCID: PMC5666525 DOI: 10.7150/ijbs.20485] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 08/28/2017] [Indexed: 02/07/2023] Open
Abstract
Mesangial cell proliferation has been identified as a mainly contributing factor to glomerulosclerosis, which is typical of diabetic nephropathy. However, the specific mechanisms and therapies remain unclear. PDK1 is a critical regulator of cell proliferation, but the specific role of PDK1 in diabetic nephropathy has not been fully illuminated. In the current study, we demonstrated that triptolide (TP) ameliorated albuminuria in the high fat diet/STZ-induced diabetic rats. TP also suppressed the increased proliferating cell markers Ki-67 and PCNA in the kidney tissues. Our results of MTT and cell cycle analysis further confirmed that TP significantly inhibited mesangial cell proliferation, and the inhibition of PDK1/Akt/mTOR pathway might be the underlying mechanisms. In addition, we also found that the PDK1 activator (PS48) could reverse the cell proliferation inhibition role of TP. These data suggest that TP may be useful in prevention of diabetic glomerulosclerosis and that PDK1/Akt/mTOR pathway might be the underlying mechanism.
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Affiliation(s)
- Fei Han
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Mei Xue
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Yunpeng Chang
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Xiaoyu Li
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Yang Yang
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Bei Sun
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
| | - Liming Chen
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University
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Li XY, Wang SS, Han Z, Han F, Chang YP, Yang Y, Xue M, Sun B, Chen LM. Triptolide Restores Autophagy to Alleviate Diabetic Renal Fibrosis through the miR-141-3p/PTEN/Akt/mTOR Pathway. MOLECULAR THERAPY-NUCLEIC ACIDS 2017; 9:48-56. [PMID: 29246323 PMCID: PMC5602517 DOI: 10.1016/j.omtn.2017.08.011] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 08/22/2017] [Accepted: 08/22/2017] [Indexed: 11/04/2022]
Abstract
Fibrosis is the major pathological feature of diabetic kidney disease (DKD). Autophagy, a process to maintain metabolic homeostasis, is obviously inhibited in DKD. Triptolide (TP) is a traditional Chinese medicine extract known for immune suppression and anti-inflammatory and anti-cancer activities. In this study, we investigated the effects of TP on autophagy and fibrosis in DKD. TP restored autophagy and alleviated fibrosis in DKD rats and high-glucose-incubated human mesangial cells. After we applied 3-methyladenine (an autophagy inhibitor) and autophagy-related gene 5-small interfering RNA (siRNA), we found that the improvement of fibrosis on TP was related to the restoration of autophagy. In addition, miR-141-3p levels were increased under high glucose but reduced after TP treatment. miR-141-3p overexpression aggravated the fibrosis and restrained the autophagy further, while miR-141-3p inhibition imitated the effects of TP. As an action target, phosphatase and tensin homolog (PTEN) showed corresponding opposite changes. After PTEN-siRNA transfection, the effects of TP on autophagy and fibrosis were inhibited. PTEN levels were downregulated, with downstream phosphorylated protein kinase B (Akt) and the mammalian target of rapamycin (mTOR) upregulated in high glucose, which were reversed by TP treatment. These findings indicate that TP alleviates fibrosis by restoring autophagy through the miR-141-3p/PTEN/Akt/mTOR pathway and is a novel therapeutic option for DKD.
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Affiliation(s)
- Xiao-Yu Li
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Shan-Shan Wang
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Zhe Han
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Fei Han
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Yun-Peng Chang
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Yang Yang
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Mei Xue
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Bei Sun
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China.
| | - Li-Ming Chen
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China.
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Wu W, Yang JJ, Yang HM, Huang MM, Fang QJ, Shi G, Mao ZM, Han WB, Shen SM, Wan YG. Multi-glycoside of Tripterygium wilfordii Hook. f. attenuates glomerulosclerosis in a rat model of diabetic nephropathy by exerting anti-microinflammatory effects without affecting hyperglycemia. Int J Mol Med 2017; 40:721-730. [PMID: 28731135 PMCID: PMC5548017 DOI: 10.3892/ijmm.2017.3068] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 07/10/2017] [Indexed: 12/26/2022] Open
Abstract
Multi-glycoside of Tripterygium wilfordii Hook. f. (GTW) has been proven to be clinically effective in relieving microinflammation in patients with early diabetic nephropathy (DN). However, the therapeutic mechanisms involved in vivo remain unclear. In the process of early DN, microinflammation and activation of p38 mitogen-activated protein kinase (MAPK) and canonical nuclear factor (NF)-κB signaling pathways are the important mechanisms by which hyperglycemia contributes to glomerulosclerosis (GS). Therefore, this study aimed to examine the ameliorative effects of GTW on GS, and then to clarify its anti-microinflammatory mechanisms by inhibiting p38 MAPK and NF-κB signaling activities in the kidney. All rats were divided into 4 groups: the sham group, the sham + GTW group, the vehicle group and the GTW group. The suitable dose of GTW and vehicle were daily administered for 8 weeks after the induction of DN by unilateral nephrectomy combined with intraperitoneal injections of streptozotocin (STZ). The general status of the rats, biochemical parameters, renal histological changes and macrophages in glomeruli, as well as expression of the key proteins in the p38 MAPK and canonical NF-κB signaling pathways and inflammatory cytokines including tumor necrosis factor (TNF)-α, interleukin (IL)-1β and transforming growth factor (TGF)-β1 in the kidney were examined, respectively. The results revealed that, GTW improved the general cond ition and biochemical parameters of the rats, but did not lower blood glucose; GTW attenuated GS and suppressed glomerular microinflammation including the infiltration of ED1+ cells in glomeruli and the protein overexpression of TNF-α, IL-1β and TGF-β1 in the kidney; GTW inhibited the protein overexpression of key signaling molecules of p38 MAPK and canonical NF-κB pathways in the kidney including phosphorylated p38 MAPK, phosphorylated inhibitor protein IκB and NF-κB (p65). On the whole, we expounded that GTW, as a natural regulator in vivo, alleviates GS without affecting hyperglycemia, by exerting anti-microinflammatory effects, including reducing macrophage infiltration in glomeruli, suppressing TNF-α, IL-1β and TGF-β1 overexpression in the kidney and inhibiting p38 MAPK and NF-κB signaling activities.
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Affiliation(s)
- Wei Wu
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210008, P.R. China
| | - Jing-Jing Yang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210008, P.R. China
| | - Hai-Ming Yang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Meng-Meng Huang
- Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, Jiangsu 210008, P.R. China
| | - Qi-Jun Fang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Ge Shi
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210008, P.R. China
| | - Zhi-Min Mao
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210008, P.R. China
| | - Wen-Bei Han
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210008, P.R. China
| | - Shan-Mei Shen
- Department of Endocrinology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Yi-Gang Wan
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
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Effect of triptolide on expression of oxidative carbonyl protein in renal cortex of rats with diabetic nephropathy. ACTA ACUST UNITED AC 2017; 37:25-29. [PMID: 28224432 DOI: 10.1007/s11596-017-1689-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/06/2016] [Indexed: 10/18/2022]
Abstract
The traditional Chinese medicine (Tripterygium wilfordiiHook.f., TWH) has been clinically used to treat primary and secondary renal diseases and proteinuria for nearly 40 years. However, there is a rare literature about the effect of triptolide (the main active ingredient of TWH) on the expression of oxidative carbonyl protein (OCP) in diabetic nephropathy (DN). This study aimed to provide experimental evidence for triptolide treatment on DN through its effect on the expression of OCP, in order to investigate the effects of triptolide on the expression of OCP in rats with DN. Sixty SD rats were randomly divided into five groups: control group, high-dose triptolide (Th) group, low-dose triptolide (Tl) group, DN model group, and positive control (benazepril) group. The DN model was established using streptozotocin. Urinary protein excretion, fasting blood glucose (FBG), superoxide dismutase (SOD) in renal homogenate, malondialdehyde (MDA) in renal homogenate and renal nitrotyrosine by immunohistochemistry, and the expression of OCP by oxyblotimmune blotting were detected. In the DN model group, rat urinary protein excretion and renal MDA were significantly increased, while renal SOD significantly decreased and nitrotyrosine expression was obviously upregulated in the kidney. After triptolide treatment, 24-h urinary protein excretion (61.96±19.00 vs. 18.32±4.78 mg/day, P<0.001), renal MDA (8.09±0.79 vs. 5.45±0.68 nmol/L, P<0.001), and nitrotyrosine expression were decreased. Furthermore, renal OCP significantly decreased, while renal SOD (82.50±19.10 vs. 124.00±20.52 U/L, P<0.001) was elevated. This study revealed that triptolide can down-regulate the expression of OCP in the renal cortex of DN rats.
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50
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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.
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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
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