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Zhou M, Zhang S, Bai X, Cai Y, Zhang Z, Zhang P, Xue C, Zheng H, Sun Q, Han D, Lou L, Wang Y, Liu W. Acteoside delays the fibrosis process of diabetic nephropathy by anti-oxidation and regulating the autophagy-lysosome pathway. Eur J Pharmacol 2024; 978:176715. [PMID: 38852699 DOI: 10.1016/j.ejphar.2024.176715] [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: 02/11/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/11/2024]
Abstract
Renal fibrosis is the final pathological change of kidney disease, it has also been recognized to be critical for the final progression of diabetic nephropathy (DN) to kidney failure. Acteoside (ACT) is a phenylethanoid glycoside widely distributed in dicotyledonous plants. It has many pharmacological activities, such as anti-oxidation, anti-inflammation, anti-cancer, neuroprotection, cardiovascular protection, anti-diabetes, bone and cartilage protection, liver and kidney protection, and antibacterial activity. This study aims to investigate the protective effects of ACT on renal interstitial fibrosis in rats with DN induced by intraperitoneal injection of streptozocin (STZ) combined with unilateral nephrectomy and its mechanism. In vivo and in vitro, the effects of ACT on reactive oxygen species (ROS) level, oxidative tubular injury, as well as damage of autophagic flux and lysosome in the DN model were detected. Results indicate that administration of ACT delayed the progression of renal interstitial fibrosis in DN by anti-oxidation and regulating the autophagy-lysosome pathway, which may potentially be attributed to the regulatory influence of ACT on transcription factor EB (TFEB).
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Affiliation(s)
- Mengqi Zhou
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Shujiao Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xuehui Bai
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yuzi Cai
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Zeyu Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Pingna Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Chengyuan Xue
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Huijuan Zheng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Quanmei Sun
- National Centre for Nanoscience and Technology, Beijing, China
| | - Dong Han
- National Centre for Nanoscience and Technology, Beijing, China
| | - Lixia Lou
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
| | - Yaoxian Wang
- Henan University of Chinese Medicine, Zhengzhou, China; Renal Research Institution of Beijing University of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Weijing Liu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China; Renal Research Institution of Beijing University of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
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2
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Ahmed Salıh Gezh S, Deveci K, Sivgin H, Guzelgul F. Serum L C3-II levels in type 2 diabetic patients with impaired renal functions. Cytokine 2024; 181:156683. [PMID: 38943738 DOI: 10.1016/j.cyto.2024.156683] [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: 01/31/2024] [Revised: 05/25/2024] [Accepted: 06/20/2024] [Indexed: 07/01/2024]
Abstract
This study was designed to evaluate serum LC3-II, BCL-2, IL-1β, TGF-β1, and podocin levels in. type 2 diabetes (T2DM) patients with renal dysfunction. MATERIALS 176 Turkish subjects were enrolled, of whom 26 were healthy, and 150 had T2DM. PATIENTS were classified according to albumin urea ratio: 88 patients had macroalbuminuria, 20. patients had microalbuminuria, and 42 had normoalbuminuria. T2DM patients were also. classified into three groups according to proteinuria and eGFR stages. RESULTS Increased serum LC3-II levels in patients with T2DM with increased urinary albumin. extraction and impaired renal functions. There was a strong relationship between serum. LC3-II levels and serum BCL-2, IL-1β, TGF-β1, and Podocin levels. The efficiency of LC3- II as a diagnostic biomarker in the differential diagnosis of DM patients with. macroproteinuria from DM patients with normoproteinuria was 75.4%. CONCLUSIONS It was thought that increased serum LC3-II levels in T2DM patients with impaired renal. functions may cause renal podocyte damage. In these patients, serum LC3-II levels can be. evaluated as a new biomarker to follow the development of renal damage.
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Affiliation(s)
- Shahab Ahmed Salıh Gezh
- Tokat Gaziosmanpasa University, Faculty of Medicine, Department of Medical Biochemistry, 60100, Tokat, Turkey.
| | - Koksal Deveci
- Tokat Gaziosmanpasa University, Faculty of Medicine, Department of Medical Biochemistry, 60100, Tokat, Turkey.
| | - Hakan Sivgin
- Tokat Gaziosmanpasa University, Faculty of Medicine, Department of Internal Medicine, 60100, Tokat, Turkey.
| | - Figen Guzelgul
- Tokat Gaziosmanpasa University, Faculty of Medicine, Department of Medical Biochemistry, 60100, Tokat, Turkey.
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3
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Singh B, Cui K, Eisa-Beygi S, Zhu B, Cowan DB, Shi J, Wang DZ, Liu Z, Bischoff J, Chen H. Elucidating the crosstalk between endothelial-to-mesenchymal transition (EndoMT) and endothelial autophagy in the pathogenesis of atherosclerosis. Vascul Pharmacol 2024; 155:107368. [PMID: 38548093 PMCID: PMC11303600 DOI: 10.1016/j.vph.2024.107368] [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: 01/17/2024] [Revised: 03/07/2024] [Accepted: 03/25/2024] [Indexed: 04/26/2024]
Abstract
Atherosclerosis, a chronic systemic inflammatory condition, is implicated in most cardiovascular ischemic events. The pathophysiology of atherosclerosis involves various cell types and associated processes, including endothelial cell activation, monocyte recruitment, smooth muscle cell migration, involvement of macrophages and foam cells, and instability of the extracellular matrix. The process of endothelial-to-mesenchymal transition (EndoMT) has recently emerged as a pivotal process in mediating vascular inflammation associated with atherosclerosis. This transition occurs gradually, with a significant portion of endothelial cells adopting an intermediate state, characterized by a partial loss of endothelial-specific gene expression and the acquisition of "mesenchymal" traits. Consequently, this shift disrupts endothelial cell junctions, increases vascular permeability, and exacerbates inflammation, creating a self-perpetuating cycle that drives atherosclerotic progression. While endothelial cell dysfunction initiates the development of atherosclerosis, autophagy, a cellular catabolic process designed to safeguard cells by recycling intracellular molecules, is believed to exert a significant role in plaque development. Identifying the pathological mechanisms and molecular mediators of EndoMT underpinning endothelial autophagy, may be of clinical relevance. Here, we offer new insights into the underlying biology of atherosclerosis and present potential molecular mechanisms of atherosclerotic resistance and highlight potential therapeutic targets.
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Affiliation(s)
- Bandana Singh
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Kui Cui
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Shahram Eisa-Beygi
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Bo Zhu
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Douglas B Cowan
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Jinjun Shi
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Da-Zhi Wang
- Center for Regenerative Medicine, University of South Florida Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Zhenguo Liu
- Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, USA
| | - Joyce Bischoff
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Hong Chen
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA.
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4
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Liang C, Ma L, Chen Y, Li J, Wang B, Ma C, Yuan Z, Nong X. Artesunate Alleviates Kidney Fibrosis in Type 1 Diabetes with Periodontitis Rats via Promoting Autophagy and Suppression of Inflammation. ACS OMEGA 2024; 9:16358-16373. [PMID: 38617690 PMCID: PMC11007779 DOI: 10.1021/acsomega.4c00020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/21/2024] [Accepted: 02/26/2024] [Indexed: 04/16/2024]
Abstract
To explore the effect of periodontal disease on the progression of diabetic kidney disease (DKD), to observe the effects of artesunate (ART) intervention on periodontal and kidney tissues in type 1 diabetic rats with periodontitis, and to explore the possibility of ART for the treatment of DKD. Rat models of diabetes mellitus, periodontitis, and diabetes mellitus with periodontitis were established through streptozotocin (STZ) intraperitoneal injection, maxillary first molar ligation, and P. gingivalis ligation applied sequentially. Ten weeks after modeling, ART gavage treatment was given for 4 weeks. Immunohistochemistry, reverse transcription-quantitative polymerase chain reaction (RT-qPCR), and Western blot were used to investigate the inflammatory factors, fibrogenisis, autophagy-related factors, and proteins in periodontal and kidney tissues, and 16S rDNA sequencing was used to detect the changes in dental plaque fluid and kidney tissue flora. Compared to the control group, the protein expression levels of transforming growth factor β1 (TGF-β1) and COL-IV in the periodontal disease (PD) group were increased. The protein expression of TGF-β1, Smad3, and COL-IV increased in the DM group and the DM + PD group, and the expression of TGF-β1, Smad3, and COL-IV was upregulated in the DM + PD group. These results suggest that periodontal disease enhances renal fibrosis and that this process is related to the TGF-β1/Smad/COL-IV signaling pathway. Among the top five dominant bacteria in the kidney of the DM + PD group, the abundance of Proteobacteria increased most significantly, followed by Actinobacteria and Firmicutes with mild increases. The relative abundance of Proteobacteria, Actinobacteria, and Firmicutes in the kidney tissues of DM and PD groups also showed an increasing trend compared with the CON group. Proteobacteria and Firmicutes in the kidney of the PD group and DM + PD group showed an increasing trend, which may mediate the increase of oxidative stress in the kidney and promote the occurrence and development of DN. Periodontal disease may lead to an imbalance of renal flora, aggravate renal damage in T1DM, cause glomerular inflammation and renal tubulointerstitial fibrosis, and reduce the level of autophagy. ART delays the process of renal fibrosis by inhibiting the TGF-β-Smad signaling pathway.
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Affiliation(s)
- Chen Liang
- College
of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Licheng Ma
- College
of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Yi Chen
- College
of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Jiaquan Li
- Medical
Science Research Center, Guangxi Medical
University, Nanning 530021, Guangxi, China
| | - Binge Wang
- College
of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Chubin Ma
- College
of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Zhong Yuan
- College
of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Xiaolin Nong
- College
of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning 530021, Guangxi, China
- Guangxi
Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning 530021, Guangxi, China
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5
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Xue R, Wang Y, Geng L, Xiao H, Kumar V, Lan X, Malhotra A, Singhal PC, Chen J. Comprehensive analysis of the gene expression profile of the male and female BTBR mice with diabetic nephropathy. Int J Biol Macromol 2024; 257:128720. [PMID: 38101684 DOI: 10.1016/j.ijbiomac.2023.128720] [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: 07/23/2023] [Revised: 09/26/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Comprehensive insight into the gender-based gene expression-related omics data in a rodent model of diabetic nephropathy (DN) is scarce. In the present study, the gender-based genes regulating different pathways involved in the progression of DN were explored through an unbiased RNA sequence of kidneys from BTBR mice with DN. We identified 17,739 and 17,981 genes in male and female DN mice; 1121 and 655 genes were expressed differentially (DEGs, differentially expressed genes) in male and female DN mice; both genders displayed only 195 DEGs. In the male DN mice, the number of upregulated genes was nearly the same as that of the down-regulated genes. In contrast, the number of upregulated genes was lesser than that of the down-regulated genes in the female DN mice, manifesting a remarkable gender disparity during the progression of DN in this animal model. Gene Ontology (GO) and KEGG-enriched results showed that most of these DEGs were related to the critical biological processes, including metabolic pathways, natural oxidation, bile secretion, and PPAR signaling; all are highly associated with DN. Notably, the DEGs significantly enriched for steroid hormone biosynthesis pathway were identified in both genders; the number of DEGs increased was 22 in male DN mice and 14 in female DN mice. Specifically, the Ugt1a10, Akr1c12, and Akr1c14 were upregulated in both genders. Interestingly, the Hsd11b1 gene was upregulated in female DN mice but downregulated in male DN mice. These results suggest that a significant gender-based variance in the gene expression occurs during the progression of DN and may be playing a role in the advancement of DN in the BTBR mouse model.
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Affiliation(s)
- Rui Xue
- Affiliated Mental Health Center & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310000, China
| | - Ying Wang
- Department of Pathogenic Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Lei Geng
- Department of Nephrology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Haiting Xiao
- Key Laboratory of Luzhou City for Aging Medicine, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Vinod Kumar
- Department of Dermatology, Postgraduate Institute for Medical Education and Research, Chandigarh 160012, India
| | - Xiqian Lan
- Key Laboratory of Luzhou City for Aging Medicine, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Ashwani Malhotra
- Feinstein Institute for Medical Research and Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY 11030, United States
| | - Pravin C Singhal
- Feinstein Institute for Medical Research and Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY 11030, United States.
| | - Jianning Chen
- Affiliated Mental Health Center & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310000, China.
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6
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Jaikumkao K, Thongnak L, Htun KT, Pengrattanachot N, Phengpol N, Sutthasupha P, Promsan S, Montha N, Sriburee S, Kothan S, Lungkaphin A. Dapagliflozin and metformin in combination ameliorates diabetic nephropathy by suppressing oxidative stress, inflammation, and apoptosis and activating autophagy in diabetic rats. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166912. [PMID: 37816397 DOI: 10.1016/j.bbadis.2023.166912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/04/2023] [Accepted: 10/02/2023] [Indexed: 10/12/2023]
Abstract
Considering the effects of sodium-glucose cotransporter inhibitors and metformin on the kidneys, a combination of both agents is postulated to provide protection against diabetic nephropathy (DN). We examined the potential protective effects of dapagliflozin, metformin, and their combination on kidney injury in rats with type 2 diabetes. Diabetic (DM) rats were administered dapagliflozin (1.0 mg/kg/day), metformin (100 mg/kg/day), or a combination (dapagliflozin 0.5 mg/kg/day plus metformin 50 mg/kg/day) by oral gavage for 4 weeks. Dapagliflozin monotherapy or in combination with metformin was more effective than metformin monotherapy in attenuating renal dysfunction, improving renal organic anion transporter 3 expression, and activating renal autophagy by modulating the AMPK/mTOR/SIRT1 axis in DM rats. Interestingly, dapagliflozin monotherapy exhibited greater efficacy in suppressing renal oxidative stress in DM rats than metformin or the combination treatment. Renal and pancreatic injury scores decreased in all treatment groups. Apoptotic markers were predominantly reduced in dapagliflozin monotherapy and combination treatment groups. The low-dose combination treatment, through synergistic coordination, appeared to modulate oxidative, autophagic, and apoptotic signaling and confer significant renoprotective effects against DM-induced complications. In addition, a low dose of the combination might be beneficial to patients by avoiding the risk of side effects of the medication. Future clinical trials are necessary to study the nephroprotective effects of the combined treatment at a low dosage in patients with diabetes.
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Affiliation(s)
- Krit Jaikumkao
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand; Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Laongdao Thongnak
- Princess Srisavangavadhana College of Medicine, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Khin Thandar Htun
- Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Nattavadee Pengrattanachot
- Renal Transporter and Molecular Signaling Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Nichakorn Phengpol
- Renal Transporter and Molecular Signaling Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Prempree Sutthasupha
- Renal Transporter and Molecular Signaling Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sasivimon Promsan
- Renal Transporter and Molecular Signaling Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Napatsorn Montha
- Department of Animal and Aquatic Science, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
| | - Sompong Sriburee
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand; Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Suchart Kothan
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand; Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Anusorn Lungkaphin
- Renal Transporter and Molecular Signaling Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand; Functional Foods for Health and Disease, Department of Physiology, Chiang Mai University, Chiang Mai, Thailand; Functional Food Research Center for Well-Being, Multidisciplinary Research Institute, Chiang Mai University, Chiang Mai, Thailand.
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7
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Ai S, Li Y, Zheng H, Wang Z, Liu W, Tao J, Li Y, Wang Y. Global research trends and hot spots on autophagy and kidney diseases: a bibliometric analysis from 2000 to 2022. Front Pharmacol 2023; 14:1275792. [PMID: 38099142 PMCID: PMC10719858 DOI: 10.3389/fphar.2023.1275792] [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: 08/10/2023] [Accepted: 11/17/2023] [Indexed: 12/17/2023] Open
Abstract
Background: Autophagy is an essential cellular process involving the self-degradation and recycling of organelles, proteins, and cellular debris. Recent research has shown that autophagy plays a significant role in the occurrence and development of kidney diseases. However, there is a lack of bibliometric analysis regarding the relationship between autophagy and kidney diseases. Methods: A bibliometric analysis was conducted by searching for literature related to autophagy and kidney diseases in the Web of Science Core Collection (WoSCC) database from 2000 to 2022. Data processing was carried out using R package "Bibliometrix", VOSviewers, and CiteSpace. Results: A total of 4,579 articles related to autophagy and kidney diseases were collected from various countries. China and the United States were the main countries contributing to the publications. The number of publications in this field showed a year-on-year increasing trend, with open-access journals playing a major role in driving the literature output. Nanjing Medical University in China, Osaka University in Japan, and the University of Pittsburgh in the United States were the main research institutions. The journal "International journal of molecular sciences" had the highest number of publications, while "Autophagy" was the most influential journal in the field. These articles were authored by 18,583 individuals, with Dong, Zheng; Koya, Daisuke; and Kume, Shinji being the most prolific authors, and Dong, Zheng being the most frequently co-cited author. Research on autophagy mainly focused on diabetic kidney diseases, acute kidney injury, and chronic kidney disease. "Autophagy", "apoptosis", and "oxidative stress" were the primary research hotspots. Topics such as "diabetic kidney diseases", "sepsis", "ferroptosis", "nrf2", "hypertension" and "pi3k" may represent potential future development trends. Research on autophagy has gradually focused on metabolic-related kidney diseases such as diabetic nephropathy and hypertension. Additionally, PI3K, NRF2, and ferroptosis have been recent research directions in the field of autophagy mechanisms. Conclusion: This is the first comprehensive bibliometric study summarizing the relationship between autophagy and kidney diseases. The findings aid in identifying recent research frontiers and hot topics, providing valuable references for scholars investigating the role of autophagy in kidney diseases.
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Affiliation(s)
- Sinan Ai
- Beijing University of Chinese Medicine, Beijing, China
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yake Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Huijuan Zheng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Zhen Wang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Weijing Liu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - JiaYin Tao
- Beijing University of Chinese Medicine, Beijing, China
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yaotan Li
- Beijing University of Chinese Medicine, Beijing, China
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yaoxian Wang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Henan University of Chinese Medicine, Zhengzhou, China
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8
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Sadeghi A, Niknam M, Momeni-Moghaddam MA, Shabani M, Aria H, Bastin A, Teimouri M, Meshkani R, Akbari H. Crosstalk between autophagy and insulin resistance: evidence from different tissues. Eur J Med Res 2023; 28:456. [PMID: 37876013 PMCID: PMC10599071 DOI: 10.1186/s40001-023-01424-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 10/03/2023] [Indexed: 10/26/2023] Open
Abstract
Insulin is a critical hormone that promotes energy storage in various tissues, as well as anabolic functions. Insulin resistance significantly reduces these responses, resulting in pathological conditions, such as obesity and type 2 diabetes mellitus (T2DM). The management of insulin resistance requires better knowledge of its pathophysiological mechanisms to prevent secondary complications, such as cardiovascular diseases (CVDs). Recent evidence regarding the etiological mechanisms behind insulin resistance emphasizes the role of energy imbalance and neurohormonal dysregulation, both of which are closely regulated by autophagy. Autophagy is a conserved process that maintains homeostasis in cells. Accordingly, autophagy abnormalities have been linked to a variety of metabolic disorders, including insulin resistance, T2DM, obesity, and CVDs. Thus, there may be a link between autophagy and insulin resistance. Therefore, the interaction between autophagy and insulin function will be examined in this review, particularly in insulin-responsive tissues, such as adipose tissue, liver, and skeletal muscle.
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Affiliation(s)
- Asie Sadeghi
- Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
- Department of Clinical Biochemistry, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Maryam Niknam
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Maryam Shabani
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Aria
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Alireza Bastin
- Clinical Research Development Center "The Persian Gulf Martyrs" Hospital, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Maryam Teimouri
- Department of Biochemistry, School of Allied Medical Sciences, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Reza Meshkani
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Akbari
- Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran.
- Department of Clinical Biochemistry, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
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9
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Lai W, Luo D, Li Y, Li Y, Wang Q, Hu Z, Ye Z, Peng H. Irisin ameliorates diabetic kidney disease by restoring autophagy in podocytes. FASEB J 2023; 37:e23175. [PMID: 37742293 DOI: 10.1096/fj.202300420r] [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: 03/05/2023] [Revised: 07/21/2023] [Accepted: 08/22/2023] [Indexed: 09/26/2023]
Abstract
Many studies have highlighted the importance of moderate exercise. While it can attenuate diabetic kidney disease, its mechanism has remained unclear. The level of myokine irisin in plasma increases during exercise. We found that irisin was decreased in diabetic patients and was closely related to renal function, proteinuria, and podocyte autophagy injury. Muscle-specific overexpression of PGC-1α (mPGC-1α) in a mouse model is known to increase plasma irisin levels. The mPGC-1α mice were crossed with db/m mice to obtain db/db mPGC-1α+ mice in the present study. Compared to db/db mice without mPGC-1α, plasma irisin was increased, and albuminuria and glomerular pathological damage were both alleviated in db/db mPGC-1α+ mice. Impaired autophagy in podocytes was restored as well. Irisin inhibited the activation of the PI3K/AKT/mTOR signaling pathway in cultured human podocytes and improved damaged autophagy induced by high glucose levels. Then, db/db mice were treated with recombinant irisin, which had similar beneficial effects on the kidney as those in db/db mPGC-1α+ mice, with alleviated glomerular injury and albuminuria. Moreover, the autophagy in podocytes was also significantly restored. These results suggest that irisin secreted by skeletal muscles protects the kidney from diabetes mellitus damage. It also restores autophagy in podocytes by inhibiting the abnormal activation of the PI3K/AKT/mTOR signaling pathway. Thus, irisin may become a new drug for the prevention and treatment of diabetic nephropathy.
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Affiliation(s)
- Weiyan Lai
- Nephrology Division, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dan Luo
- Nephrology Division, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yin Li
- Nephrology Division, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuanqing Li
- Nephrology Division, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qianqian Wang
- Nephrology Division, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhaoyong Hu
- Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Zengchun Ye
- Nephrology Division, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hui Peng
- Nephrology Division, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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10
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Liu Y, Wang S, Jin G, Gao K, Wang S, Zhang X, Zhou K, Cai Y, Zhou X, Zhao Z. Network pharmacology-based study on the mechanism of ShenKang injection in diabetic kidney disease through Keap1/Nrf2/Ho-1 signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 118:154915. [PMID: 37392674 DOI: 10.1016/j.phymed.2023.154915] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/16/2023] [Accepted: 06/02/2023] [Indexed: 07/03/2023]
Abstract
OBJECTIVE To study the effect of ShenKang Injection (SKI) on the kidneys of DKD rats and its effect on oxidative stress mediated by the Keap1/Nrf2/Ho-1 signaling pathway through network pharmacology and in vivo and in vitro experiments. METHODS SKI drug targets were screened by TCMSP, DKD targets were screened by GenGards, OMIM, Drugbank, TTD, and Disgenet databases, and the two intersected for PPI network analysis and target prediction was performed by GO and KEGG. A total of 40 SD rats were randomly divided into 10 in the control group and 30 in the model group. After the model group was fed 8 W with high-sugar and high-fat diets, a DKD model was constructed by one-time intraperitoneal injection of streptozotocin (35 mg/kg). According to the weight, the model animals were randomly divided into three groups: 8 for model validation group, 8 for Irbesartan (25 mg/kg daily) group, and 8 for SKI group (5 ml/kg). Gavaged deionized water was given to the control group and the model validation group equally. The general conditions of the rats were observed, their body weights measured and their urine volumes recorded for 24 h. After the intervention of 16 W, serum was collected to detect Urea, Scr, blood lipids, and oxidative stress and lipid peroxidation indicators; Transmission electron microscopy, HE and Mallory staining were used to observe the pathological morphology of renal tissue. Immunohistochemistry and RT-PCR were used to detect the expression of Keap1, Nrf2, Ho-1, Gpx4 proteins and mRNA in rat kidney tissues. HK-2 cells were cultured in vitro and divided into: the control group, AGEs (200 μg/ml) group and AGEs + SKI group. The cell activity of the groups was detected using CCK-8 after 48 h of cell culture, and ROS were detected using fluorescent probes. Gpx4 expression was detected by immunofluorescence, while Keap1, Nrf2, Ho-1, and Gpx4 were detected by Western Blot. RESULTS Network pharmacological analysis predicted that SKI may delay DKD kidney injury by affecting redox-related signaling pathways and mitigating AGEs-induced oxidative stress. In the animal experiment, compared with the model validation group, the general state of rats in the SKI group was improved, and 24-hour urine protein levels were significantly reduced, and the Scr in the serum was reduced. A decreasing trend was seen in Urea, and TC, TG, and LDL levels significantly decreased and the levels of ROS, LPO and MDA were significantly lowered. Pathological staining showed that renal interstitial fibrosis was significantly improved, and electron microscopy showed that foot process effacement was alleviated. Immunohistochemistry and RT-PCR showed decreased expression of Keap1 protein and mRNA in kidney tissues of the SKI group. Additionally, Nrf2, Ho-1, and Gpx4 proteins and mRNA were expressed significantly. In the cell experiment, after 48 h treatment with AGEs, ROS in HK-2 cells increased significantly and cell activity decreased significantly, while cell activity in AGEs + SKI group increased significantly and ROS decreased. The expression of Keap1 protein in HK-2 cells in the AGEs + SKI group decreased, while the expression of Nrf2, Ho-1 and Gpx4 proteins increased significantly. CONCLUSION SKI can protect kidney function in DKD rats, delay DKD progression, inhibit AGEs-induced oxidative stress damage in HK-2 cells, and the mechanism of SKI to improve DKD may be achieved by activating the Keap1/Nrf2/Ho-1 signal transduction pathway.
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Affiliation(s)
- Yunhua Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Sitong Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Ge Jin
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Kun Gao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Shuyue Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Xinjiang Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Kaidong Zhou
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yanmo Cai
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Xin Zhou
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Zongjiang Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China.
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11
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The Effect of Allograft Inflammatory Factor-1 on Inflammation, Oxidative Stress, and Autophagy via miR-34a/ATG4B Pathway in Diabetic Kidney Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1668000. [PMID: 36345369 PMCID: PMC9637042 DOI: 10.1155/2022/1668000] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/28/2022] [Accepted: 09/12/2022] [Indexed: 11/23/2022]
Abstract
Increasing evidence suggests that disorders of inflammation, oxidative stress, and autophagy contribute to the pathogenesis of diabetic kidney disease (DKD). This study attempted to clarify the effect of allograft inflammatory factor-1 (AIF-1), miR-34a, and ATG4B on inflammation, oxidative stress, and autophagy in DKD both in vitro and in vivo experiments. In vivo, it was found that the levels of AIF-1, miR-34a, oxidative stress, and inflammatory factors were significantly increased in blood and urine samples of DKD patients and mouse models and correlated with the level of urinary protein. In vitro, it was also found that the expressions of AIF-1, miR-34a, ROS, and inflammatory factors were increased, while ATG4B and other autophagy related proteins were decreased in human renal glomerular endothelial cells (HRGECs) cultured with high concentration glucose medium (30 mmol/L). When AIF-1 gene was overexpressed, the levels of miR-34a, ROS, and inflammatory factors were significantly upregulated, and autophagy-related proteins such as ATG4B were downregulated, while downregulation of AIF-1 gene had the opposite effect. In addition, miR-34a inhibited the expression of ATG4B and autophagy-related proteins and increased the levels of ROS and inflammation. Furthermore, the result of luciferase reporter assay suggested that ATG4B was the target gene of miR-34a. When ATG4B gene was overexpressed, the level of autophagy was upregulated, and inflammatory factors were downregulated. Conversely, when ATG4B gene was inhibited, the level of autophagy was downregulated, and inflammatory factors were upregulated. Then, autophagy inducers inhibited the levels of inflammation and ROS, whereas autophagy inhibitors had the opposite function in HRGECs induced by glucose (30 mmol/L). In conclusion, the above data suggested that AIF-1 regulated the levels of inflammation, oxidative stress, and autophagy in HRGECs via miR-34a/ATG4B pathway to contribute to the pathogenesis of diabetic kidney disease.
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12
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Wang P, Zhang S, Lin S, Lv Z. Melatonin ameliorates diabetic hyperglycaemia-induced impairment of Leydig cell steroidogenic function through activation of SIRT1 pathway. Reprod Biol Endocrinol 2022; 20:117. [PMID: 35962432 PMCID: PMC9373359 DOI: 10.1186/s12958-022-00991-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 08/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Diabetes mellitus (DM)-related complications are important health problems worldwide. The underlying mechanisms for diabetic male subfertility/infertility are considerably complicated and need to be unveiled for therapeutic intervention. Melatonin treatment was investigated to assess the beneficial effects on injured steroidogenic function in DM due to its regulatory roles in mitochondria and autophagy. METHODS Diabetic hyperglycaemia was induced in rats injected with streptozotocin (STZ, 55 mg/kg/d) or simulated in TM3 Leydig cell line cultured with medium containing 30 mM D-glucose. Then, diabetic rats or the TM3 cells under high glucose were treated with melatonin. The diabetic rats were randomly divided into diabetes mellitus group (DM group), insulin treatment group (DM + INS group) and melatonin treatment group (DM + MT group). The TM3 Leydig cells were divided into a normal glucose control group (NG group), a high glucose treatment group (HG group), and a melatonin treatment group (HG + MT group). Then, Sirt1 (silent mating type information regulation 2 homologue) 1 expression was knocked down by siRNA. RESULTS The results showed that hyperglycaemia induced a decline in steroidogenesis, accompanied by autophagy defects, mitochondrial dysfunction and oxidative stress, in rats in the DM group or TM3 Leydig cells in the HG group. Furthermore, reduced SIRT1 expression levels and hyperacetylation were found in Leydig cells of DM group. Melatonin treatment ameliorated hyperglycaemia-induced impairment of Leydig cell function with simultaneous stimulation of 5'-adenosine monophosphate activated protein kinase (AMPK)/SIRT1 activity and the expression of autophagy-related genes. With regards to mitochondrial function, it promoted mitochondrial biogenesis with elevated PGC-1α, NRF1 and mtTFA, improved mitochondrial morphology, increased BNIP3L-related mitophagy and alleviated oxidative stress. Further results revealed that knockdown of Sirt1 in Leydig cells prevented the protective effects provided by melatonin against high glucose treatment, and interestingly, neutralization of reactive oxygen species (ROS) by N-acetyl-L-cysteine pretreatment abolished the stimulatory effect of melatonin on AMPK/SIRT1 activity in Leydig cells and prevented the induction of autophagy and mitochondrial biogenesis in the context of high glucose, indicating that modulation of SIRT1 pathway by melatonin was closely linked to ROS levels and oxidative stress. CONCLUSIONS These findings suggest that SIRT1 pathway plays essential roles in the pleiotropic actions of melatonin on Leydig cells and in the prevention of hyperglycaemia-induced steroidogenic dysfunction. The stimulatory action of melatonin on SIRT1 pathway is related to oxidative stress and its antioxidant property. Our data provide new evidence for the relationship of melatonin and SIRT1 pathway in the context of hyperglycaemia, and melatonin as a combination therapy may be useful to combat DM-related complications, especially male reproductive system injury.
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Affiliation(s)
- Ping Wang
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
- Clinical Laboratory, Gongli Hospital of Shanghai Pudong New Area, Shanghai, China
| | - Shoubing Zhang
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Shuai Lin
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Zhengmei Lv
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China.
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13
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Jin D, Liu F, Yu M, Zhao Y, Yan G, Xue J, Sun Y, Zhao D, Li X, Qi W, Wang X. Jiedu Tongluo Baoshen formula enhances podocyte autophagy and reduces proteinuria in diabetic kidney disease by inhibiting PI3K/Akt/mTOR signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2022; 293:115246. [PMID: 35398500 DOI: 10.1016/j.jep.2022.115246] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 03/16/2022] [Accepted: 03/27/2022] [Indexed: 05/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese medicine (TCM) has been applied to diabetic kidney disease (DKD). A large number of animal trials each year focus on TCM for DKD, but the evidence for these preclinical studies is not clear. AIM OF THE STUDY The aim of this study was to study the therapeutic effect of Jiedu Tongluo Baoshen formula (JTBF) on DKD proteinuria and renal protection. At the same time, it is verified that JTBF can reduce podocyte injury by enhancing autophagy function, and then achieve the effect of proteinuria. MATERIALS AND METHODS We use high performance liquid chromatography to detect and analyze the fingerprint of JTBF to find the chemical composition. Subsequently, we constructed a DKD rat model induced by high-fat diet and streptozocin (HFD + STZ). Urine and blood biochemical automatic analyzer were used to detect 24-h urine protein quantification (24 h-UP) and renal function. The renal pathological changes were observed by H&E and transmission electron microscopy (TEM), and the levels of autophagy-related proteins and mRNA in podocytes were detected by immunohistochemistry, RT-qPCR and Western Blot. The chemical composition of JTBF was screened from traditional Chinese medicine systems pharmacol (TCMSP) and PubChem databases, and the potential targets and associated pathways of JTBF were predicted using kyoto encyclopedia of genes and genomes (KEGG) and protein-protein interaction (PPI) network analysis in network pharmacology, and confirmed in animal experiments and histopathological methods. RESULTS We discovered 77 active ingredients of JTBF. Through animal experiments, it was found that JTBF reduced 24 h-UP and promoted the expression of podocin, nephrin, and WT-1 in podocytes, thereby reducing podocyte damage. At the same time, JTBF activates the expression of podocyte autophagy-related proteins (beclin-1, LC3 and P62). Subsequently, through network pharmacology predictions, 208 compounds were obtained from JTBF, and phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/Akt/mTOR) was a potential signal pathway. JTBF was obtained in DKD rat kidney tissue to inhibit the expression of PI3K, Akt and mTOR related proteins. CONCLUSIONS JTBF enhance podocyte autophagy to reduce podocyte damage, thereby effectively treating DKD proteinuria and protecting kidney function.
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Affiliation(s)
- Di Jin
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jinlin, China
| | - Feng Liu
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jinlin, China
| | - Miao Yu
- Endocrinology Department, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, 130021, China
| | - Yunyun Zhao
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jinlin, China
| | - Guanchi Yan
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jinlin, China
| | - Jiaojiao Xue
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jinlin, China
| | - Yuting Sun
- Endocrinology Department, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Daqing Zhao
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Xiangyan Li
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Wenxiu Qi
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China.
| | - Xiuge Wang
- Endocrinology Department, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, 130021, China.
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14
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Dong W, Jia C, Li J, Zhou Y, Luo Y, Liu J, Zhao Z, Zhang J, Lin S, Chen Y. Fisetin Attenuates Diabetic Nephropathy-Induced Podocyte Injury by Inhibiting NLRP3 Inflammasome. Front Pharmacol 2022; 13:783706. [PMID: 35126159 PMCID: PMC8816314 DOI: 10.3389/fphar.2022.783706] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 01/07/2022] [Indexed: 11/13/2022] Open
Abstract
Diabetic nephropathy (DN) is one of the primary complications of diabetes. Fisetin is a flavonoid polyphenol that is present in several vegetables and fruits. The present study investigated the mechanisms of fisetin in DN-induced podocyte injury both in vitro and in vivo. The results revealed that fisetin ameliorated high glucose (HG)-induced podocyte injury and streptozotocin (STZ)-induced DN in mice. CDKN1B mRNA expression in the glomeruli of patients with DN decreased based on the Nephroseq dataset, and fisetin reversed CDKN1B expression at mRNA and protein levels in a dose-dependent manner in podocytes and mice kidney tissues. Furthermore, fisetin suppressed the phosphorylation of P70S6K, a downstream target of CDKN1B, activated autophagosome formation, and inhibited Nod-like receptor protein 3 (NLRP3) inflammasomes. Interfering CDKN1B reduced the protective effects of fisetin against high glucose-induced podocyte injury. Molecular docking results revealed a potential interaction between fisetin and CDKN1B. In summary, the present study revealed that fisetin alleviated high glucose-induced podocyte injury and STZ-induced DN in mice by restoring autophagy-mediated CDKN1B/P70S6K pathway and inhibiting NLRP3 inflammasome.
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Affiliation(s)
- Wenmin Dong
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chenglin Jia
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ji Li
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Zhou
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yun Luo
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jibo Liu
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhiguo Zhao
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiaqi Zhang
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shan Lin
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ying Chen
- Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai University of Traditional Chinese Medicine, Shanghai, China
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15
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Wu Y, Wang MH, Yang T, Qin TY, Qin LL, Hu YM, Zhang CF, Sun BJ, Ding L, Wu LL, Liu TH. Mechanisms for Improving Hepatic Glucolipid Metabolism by Cinnamic Acid and Cinnamic Aldehyde: An Insight Provided by Multi-Omics. Front Nutr 2022; 8:794841. [PMID: 35087857 PMCID: PMC8786797 DOI: 10.3389/fnut.2021.794841] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/13/2021] [Indexed: 12/15/2022] Open
Abstract
Cinnamic acid (AC) and cinnamic aldehyde (AL) are two chemicals enriched in cinnamon and have been previously proved to improve glucolipid metabolism, thus ameliorating metabolic disorders. In this study, we employed transcriptomes and proteomes on AC and AL treated db/db mice in order to explore the underlying mechanisms for their effects. Db/db mice were divided into three groups: the control group, AC group and AL group. Gender- and age-matched wt/wt mice were used as a normal group. After 4 weeks of treatments, mice were sacrificed, and liver tissues were used for further analyses. Functional enrichment of differentially expressed genes (DEGs) and differentially expressed proteins (DEPs) were performed using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. DEPs were further verified by parallel reaction monitoring (PRM). The results suggested that AC and AL share similar mechanisms, and they may improve glucolipid metabolism by improving mitochondrial functions, decreasing serotonin contents and upregulating autophagy mediated lipid clearance. This study provides an insight into the molecular mechanisms of AC and AL on hepatic transcriptomes and proteomes in disrupted metabolic situations and lays a foundation for future experiments.
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Affiliation(s)
- You Wu
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China.,Key Laboratory of Health Cultivation of Beijing, Beijing University of Chinese Medicine, Beijing, China
| | - Ming-Hui Wang
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China
| | - Tao Yang
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China.,Key Laboratory of Health Cultivation of Beijing, Beijing University of Chinese Medicine, Beijing, China
| | - Tian-Yu Qin
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China
| | - Ling-Ling Qin
- Department of Science and Technology, Beijing University of Chinese Medicine, Beijing, China
| | - Yao-Mu Hu
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China.,Key Laboratory of Health Cultivation of Beijing, Beijing University of Chinese Medicine, Beijing, China
| | - Cheng-Fei Zhang
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China.,Key Laboratory of Health Cultivation of Beijing, Beijing University of Chinese Medicine, Beijing, China
| | - Bo-Ju Sun
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China
| | - Lei Ding
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China.,Key Laboratory of Health Cultivation of Beijing, Beijing University of Chinese Medicine, Beijing, China
| | - Li-Li Wu
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China.,Key Laboratory of Health Cultivation of Beijing, Beijing University of Chinese Medicine, Beijing, China
| | - Tong-Hua Liu
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing, China.,Key Laboratory of Health Cultivation of Beijing, Beijing University of Chinese Medicine, Beijing, China
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16
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Duan Y, Zhang D, Ye Y, Zheng S, Huang P, Zhang F, Mo G, Huang F, Yin Q, Li J, Han L. Integrated Metabolomics and Network Pharmacology to Establish the Action Mechanism of Qingrekasen Granule for Treating Nephrotic Syndrome. Front Pharmacol 2021; 12:765563. [PMID: 34938183 PMCID: PMC8685401 DOI: 10.3389/fphar.2021.765563] [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: 08/27/2021] [Accepted: 11/05/2021] [Indexed: 01/09/2023] Open
Abstract
Nephrotic syndrome (NS) is a clinical syndrome resulting from abnormal glomerular permeability, mainly manifesting as edema and proteinuria. Qingrekasen granule (QRKSG), a Chinese Uyghur folk medicine, is a single-flavor preparation made from chicory (Cichorium intybus L.), widely used in treating dysuria and edema. Chicory, the main component in QRKSG, effectively treats edema and protects kidneys. However, the active components in QRKSG and its underlying mechanism for treating NS remain unclear. This study explored the specific mechanism and composition of QRKSG on an NS rat model using integrated metabolomics and network pharmacology. First, metabolomics explored the relevant metabolic pathways impacted by QRKSG in the treatment of NS. Secondly, network pharmacology further explored the possible metabolite targets. Afterward, a comprehensive network was constructed using the results from the network pharmacology and metabolomics analysis. Finally, the interactions between the active components and targets were predicted by molecular docking, and the differential expression levels of the target protein were verified by Western blotting. The metabolomics results showed “D-Glutamine and D-glutamate metabolism” and “Alanine, aspartate, and glutamate metabolism” as the main targeted metabolic pathways for treating NS in rats. AKT1, BCL2L1, CASP3, and MTOR were the core QRKSG targets in the treatment of NS. Molecular docking revealed that these core targets have a strong affinity for flavonoids, terpenoids, and phenolic acids. Moreover, the expression levels of p-PI3K, p-AKT1, p-mTOR, and CASP3 in the QRKSG group significantly decreased, while BCL2L1 increased compared to the model group. These findings established the underlying mechanism of QRKSG, such as promoting autophagy and anti-apoptosis through the expression of AKT1, CASP3, BCL2L1, and mTOR to protect podocytes and maintain renal tubular function.
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Affiliation(s)
- Yanfen Duan
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Dongning Zhang
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Yan Ye
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Sili Zheng
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Ping Huang
- College of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Fengyun Zhang
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Guoyan Mo
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China.,Key Laboratory of Traditional Chinese Medicine Resource and Prescription, Ministry of Education, Wuhan, China
| | - Fang Huang
- College of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Qiang Yin
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China.,Xinjiang Uygur Pharmaceutical Co., Ltd., Urumqi, China
| | - Jingjing Li
- College of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Lintao Han
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China.,Key Laboratory of Traditional Chinese Medicine Resource and Prescription, Ministry of Education, Wuhan, China
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17
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Abstract
Sodium glucose cotransporter 2 (SGLT-2) inhibitors are the latest class of antidiabetic medications. They prevent glucose reabsorption in the proximal convoluted tubule to decrease blood sugar. Several animal studies revealed that SGLT-2 is profoundly involved in the inflammatory response, fibrogenesis, and regulation of numerous intracellular signaling pathways. Likewise, SGLT-2 inhibitors markedly attenuated inflammation and fibrogenesis and improved the function of damaged organ in animal studies, observational studies, and clinical trials. SGLT-2 inhibitors can decrease blood pressure and ameliorate hypertriglyceridemia and obesity. Likewise, they improve the outcome of cardiovascular diseases such as heart failure, arrhythmias, and ischemic heart disease. SGLT-2 inhibitors are associated with lower cardiovascular and all-cause mortality as well. Meanwhile, they protect against nonalcoholic fatty liver disease (NAFLD), chronic kidney disease, acute kidney injury, and improve micro- and macroalbuminuria. SGLT-2 inhibitors can reprogram numerous signaling pathways to improve NAFLD, cardiovascular diseases, and renal diseases. For instance, they enhance lipolysis, ketogenesis, mitochondrial biogenesis, and autophagy while they attenuate the renin-angiotensin-aldosterone system, lipogenesis, endoplasmic reticulum stress, oxidative stress, apoptosis, and fibrogenesis. This review explains the beneficial effects of SGLT-2 inhibitors on NAFLD and cardiovascular and renal diseases and dissects the underlying molecular mechanisms in detail. This narrative review explains the beneficial effects of SGLT-2 inhibitors on NAFLD and cardiovascular and renal diseases using the results of latest observational studies, clinical trials, and meta-analyses. Thereafter, it dissects the underlying molecular mechanisms involved in the clinical effects of SGLT-2 inhibitors on these diseases.
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Affiliation(s)
- Moein Ala
- School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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18
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Song FQ, Song M, Ma WX, Gao Z, Ti Y, Zhang X, Hu BA, Zhong M, Zhang W, Yu Y. Overexpressing STAMP2 attenuates diabetic renal injuries via upregulating autophagy in diabetic rats. Biochem Biophys Res Commun 2021; 579:47-53. [PMID: 34583195 DOI: 10.1016/j.bbrc.2021.09.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 09/11/2021] [Indexed: 10/20/2022]
Abstract
Diabetic nephropathy (DN) is one of the most serious and major renal complications of diabetes. Previously, Six-transmembrane Protein of Prostate 2 (STAMP2) was reported to contribute to nutritional stress. The purpose of this study is to investigate whether overexpression of STAMP2 attenuates diabetic renal injuries in DN rats. We induced the DN rat model by high-fat diet and low-dose streptozotocin and evaluated the metabolite and urine albumin/creatinine. Recombinant adeno-associated virus vectors were injected for overexpression of STAMP2. Pathophysiologic and ultrastructure features of DN by histochemical stain and transmission electron microscope, autophagy-related proteins and signaling pathway by western blotting were assessed. We found the expression of STAMP2 was decreased and autophagy was blunted in DN rat kidneys. Overexpressing STAMP2 significantly ameliorated metabolic disturbance, insulin resistance, and specifically restoring diabetic renal injury. Furthermore, overexpressing STAMP2 improved the autophagy deficiency in DN rats, as revealed by changes in the expressions of Beclin1, p62, and LC3. Furthermore, STAMP2 overexpressing promoted autophagy by inhibiting the mTOR and activating the AMPK/SIRT1 signaling pathway. Our results suggested that STAMP2 overexpression attenuated renal injuries via upregulating autophagy in DN rats. STAMP2 overexpressing promoted autophagy may been involved with inhibition of the mTOR/ULK1 and activation of the AMPK/SIRT1 signaling pathway.
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Affiliation(s)
- Fang-Qiang Song
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China; Department of Critical Care Medicine, Tengzhou Central People's Hospital, Tengzhou, Shandong Province, 277500, China
| | - Ming Song
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Wei-Xuan Ma
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Zhan Gao
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China; Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Yun Ti
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Xu Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Bo-Ang Hu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Ming Zhong
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Wei Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Ying Yu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China; Department of Nephrology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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Fukushima K, Kitamura S, Tsuji K, Wada J. Sodium-Glucose Cotransporter 2 Inhibitors Work as a "Regulator" of Autophagic Activity in Overnutrition Diseases. Front Pharmacol 2021; 12:761842. [PMID: 34744742 PMCID: PMC8566701 DOI: 10.3389/fphar.2021.761842] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 09/15/2021] [Indexed: 12/19/2022] Open
Abstract
Several large clinical trials have shown renal and cardioprotective effects of sodium–glucose cotransporter 2 (SGLT2) inhibitors in diabetes patients, and the protective mechanisms need to be elucidated. There have been accumulating studies which report that SGLT2 inhibitors ameliorate autophagy deficiency of multiple organs. In overnutrition diseases, SGLT2 inhibitors affect the autophagy via various signaling pathways, including mammalian target of rapamycin (mTOR), sirtuin 1 (SIRT1), and hypoxia-inducible factor (HIF) pathways. Recently, it turned out that not only stagnation but also overactivation of autophagy causes cellular damages, indicating that therapeutic interventions which simply enhance or stagnate autophagy activity might be a “double-edged sword” in some situations. A small number of studies suggest that SGLT2 inhibitors not only activate but also suppress the autophagy flux depending on the situation, indicating that SGLT2 inhibitors can “regulate” autophagic activity and help achieve the appropriate autophagy flux in each organ. Considering the complicated control and bilateral characteristics of autophagy, the potential of SGLT2 inhibitors as the regulator of autophagic activity would be beneficial in the treatment of autophagy deficiency.
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Affiliation(s)
- Kazuhiko Fukushima
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Academic Field of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shinji Kitamura
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Academic Field of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kenji Tsuji
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Academic Field of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Jun Wada
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Academic Field of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Exercise Ameliorates Diabetic Kidney Disease in Type 2 Diabetic Fatty Rats. Antioxidants (Basel) 2021; 10:antiox10111754. [PMID: 34829625 PMCID: PMC8614720 DOI: 10.3390/antiox10111754] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/31/2022] Open
Abstract
Lifestyle improvement, including through exercise, has been recognized as an important mode of therapy for the suppression of diabetic kidney disease (DKD). However, the detailed molecular mechanisms by which exercise exerts beneficial effects in the suppression of DKD have not yet been fully elucidated. In this study, we investigate the effects of treadmill exercise training (TET) for 8 weeks (13 m/min, 30 min/day, 5 days/week) on kidney injuries of type 2 diabetic male rats with obesity (Wistar fatty (fa/fa) rats: WFRs) at 36 weeks of age. TET significantly suppressed the levels of albuminuria and urinary liver-type fatty-acid-binding protein (L-FABP), tubulointerstitial fibrosis, inflammation, and oxidative stress in the kidneys of WFRs. In addition, TET mitigated excessive apoptosis and restored autophagy in the renal cortex, as well as suppressed the development of morphological abnormalities in the mitochondria of proximal tubular cells, which were also accompanied by the restoration of AMP-activated kinase (AMPK) activity and suppression of the mechanistic target of rapamycin complex 1 (mTORC1). In conclusion, TET ameliorates diabetes-induced kidney injury in type 2 diabetic fatty rats.
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21
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Chen C, Ma J, Miao CS, Zhang H, Zhang M, Cao X, Shi Y. Trigonelline induces autophagy to protect mesangial cells in response to high glucose via activating the miR-5189-5p-AMPK pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 92:153614. [PMID: 34500303 DOI: 10.1016/j.phymed.2021.153614] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/19/2021] [Accepted: 05/16/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Diabetic nephropathy (DN) is a primary cause of end-stage renal disease. Increasing evidence indicates that microRNAs (miRNAs) are involved in DN pathogenesis. Trigonelline (TRL) has been shown to lower blood sugar and cholesterol levels, promote nerve regeneration, and exert anti-cancer and sedative properties. METHOD The effect of TRL on human mesangial cell (HMC) growth was assessed using the MTT assay. Differentially expressed miRNAs were validated using real-time quantitative polymerase chain reaction (real-time PCR). Bioinformatics, cell transfection, and Western blot analyses were utilized to confirm the binding of miR-5189-5p to HIF1AN. The effects of miR-5189-5 expression on cell proliferation were also assessed. Western blot analysis was used to determine the activation of multiple signaling molecules including phosphorylated-(p)-AMPK, SIRT1, LC3B, p62, and Beclin-1 in the autophagy pathway. RESULTS TRL improved proliferation, increased the expression of miR-5189-5p, reduced HIF1AN, and restored the inhibition of autophagy in HMCs induced by high glucose. MiR-5189-5p mimics inhibited HIF1AN expression, and the miR-5189-5p inhibitor increased HIF1AN expression. MiR-5189-5p mimics significantly improved the proliferation of HMCs induced by high glucose, reduced the relative protein expression of p-AMPK, SIRT1, LC3B, and Beclin-1, and significantly increased the relative protein expression of p62. CONCLUSION We showed that TRL up-regulated miR-5189-5p expression, activated the AMPK pathway, and activated autophagy in HMCs. Our study demonstrates that TRL could be a new treatment strategy to protect mesangial cells in response to high glucose.
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Affiliation(s)
- Chen Chen
- Department of Pharmacology, School of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, Jilin 130021, China
| | - Jiulong Ma
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, Jilin 130021, China
| | - Chun Sheng Miao
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, Jilin 130021, China
| | - Huayu Zhang
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, Jilin 130021, China
| | - Ming Zhang
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, Jilin 130021, China
| | - Xia Cao
- Department of Pharmacology, School of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, Jilin 130021, China.
| | - Yan Shi
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, Jilin 130021, China.
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22
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Yassin* R, Tadmor* H, Farber E, Igbariye A, Armaly-Nakhoul A, Dahan I, Nakhoul F, Nakhoul N. Alteration of autophagy-related protein 5 (ATG5) levels and Atg5 gene expression in diabetes mellitus with and without complications. Diab Vasc Dis Res 2021; 18:14791641211062050. [PMID: 34903064 PMCID: PMC8679033 DOI: 10.1177/14791641211062050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Autophagy is a catabolic mechanism that involves lysosomal-dependent degradation of unnecessary intracellular components and responsible for normal cellular homeostasis. Autophagy pathway and its key participant ATG5/LC3 are associated with several pathologies such as diabetes mellitus and its complications. METHODS Levels and expression of autophagy key components ATG5 and LC3B were analyzed in both human model and murine tissues. One hundred and twenty human subjects were divided into four groups: Healthy (control), diabetes mellitus without complications, diabetic nephropathy, and diabetic retinopathy. Additionally, we used kidneys from WT healthy and diabetic nephropathy mice. Lysate derived from human peripheral blood mononuclear cells and murine renal cortex lysates were subjected to western blot and immunohistochemical analysis. RESULTS Western blot and immunohistochemical analysis demonstrate that ATG5 protein levels were significantly decreased in diabetes mellitus, diabetic nephropathy (DN), and diabetic retinopathy patients versus healthy controls and in DN mice compared to healthy mice (0.65 ± 0.04; 1.15 ± 0.13 A.U. units, respectively). Quantification of staining area (%) of ATG5 mice tissue expression also decreased in DN versus healthy mice (4.42 ± 1.08%; 10.87 ± 1.01%, respectively). LC3B LEVELS AND EXPRESSION Significant reduction in peripheral blood mononuclear cells in diabetic patients (with or without complications) vs. healthy controls. Renal LC3B levels were lower in DN versus healthy mice (0.36 ± 0.03; 0.68 ± 0.07 A.U. units). Renal LC3B staining quantification revealed significant reduction in DN versus healthy mice (1.7 ± 0.23%; 8.56 ± 1.7%). CONCLUSION We conclude that ATG5, as well as LC3B, are down regulated in diabetic patients with or without complications. This diminution contributes to deficiencies in the autophagy process.
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Affiliation(s)
- Remah Yassin*
- Diabetes & Metabolism Lab, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
| | - Hagar Tadmor*
- Diabetes & Metabolism Lab, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Evgeny Farber
- Diabetes & Metabolism Lab, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
- Department of Ophthalmology, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
| | - Anas Igbariye
- Diabetes & Metabolism Lab, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
| | - Aida Armaly-Nakhoul
- Diabetes & Metabolism Lab, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
| | - Inbal Dahan
- Diabetes & Metabolism Lab, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
| | - Farid Nakhoul
- Diabetes & Metabolism Lab, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Nakhoul Nakhoul
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
- Department of Ophthalmology, Baruch Padeh Medical Center, Poriya, Tiberias, Israel
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Han Y, Xiong S, Zhao H, Yang S, Yang M, Zhu X, Jiang N, Xiong X, Gao P, Wei L, Xiao Y, Sun L. Lipophagy deficiency exacerbates ectopic lipid accumulation and tubular cells injury in diabetic nephropathy. Cell Death Dis 2021; 12:1031. [PMID: 34718329 PMCID: PMC8557213 DOI: 10.1038/s41419-021-04326-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 12/21/2022]
Abstract
Autophagy-mediated lipotoxicity plays a critical role in the progression of diabetic nephropathy (DN), but the precise mechanism is not fully understood. Whether lipophagy, a selective type of autophagy participates in renal ectopic lipid deposition (ELD) and lipotoxicity in the kidney of DN is unknown. Here, decreased lipophagy, increased ELD and lipotoxcity were observed in tubular cells of patients with DN, which were accompanied with reduced expression of AdipoR1 and p-AMPK. Similar results were found in db/db mice, these changes were reversed by AdipoRon, an adiponectin receptor activator that promotes autophagy. Additionally, a significantly decreased level of lipophagy was observed in HK-2 cells, a human proximal tubular cell line treated with high glucose, which was consistent with increased lipid deposition, apoptosis and fibrosis, while were partially alleviated by AdipoRon. However, these effects were abolished by pretreatment with ULK1 inhibitor SBI-0206965, autophagy inhibitor chloroquine and enhanced by AMPK activator AICAR. These data suggested by the first time that autophagy-mediated lipophagy deficiency plays a critical role in the ELD and lipid-related renal injury of DN.
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Affiliation(s)
- Yachun Han
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Shan Xiong
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Hao Zhao
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Shikun Yang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ming Yang
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Xuejing Zhu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Na Jiang
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Xiaofen Xiong
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Peng Gao
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Ling Wei
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Ying Xiao
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Lin Sun
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China.
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Liu Y, Liu W, Zhang Z, Hu Y, Zhang X, Sun Y, Lei Q, Sun D, Liu T, Fan Y, Li H, Ding W, Fang J. Yishen capsule promotes podocyte autophagy through regulating SIRT1/NF-κB signaling pathway to improve diabetic nephropathy. Ren Fail 2021; 43:128-140. [PMID: 33427556 PMCID: PMC7808384 DOI: 10.1080/0886022x.2020.1869043] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Diabetic nephropathy (DN) is a common complication of diabetes. Yishen capsule, composed of Chinese herbs, improves the clinical outcome in DN patients. However, its therapeutic potential and underlying mechanisms require further elucidation. Hence, our study aimed to investigate the underlying mechanisms and therapeutic potential of Yishen capsule in DN. Streptozotocin-induced DN rats were treated with Yishen capsules (1.25 g/kg/day) for 8 weeks. Then, blood glucose and urine protein levels were measured. Hematoxylin and eosin staining and western blot assays were used to examine the histologic changes and gene expression, respectively, in kidney samples. Mouse podocytes were treated with rat serum containing Yishen capsule and transmission electron microscopy was used to examine autophagosome formation. Cell counting kit-8 assay was performed to examine cell proliferation. Western blot and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analyses were conducted to detect changes in gene expression. The localization of SIRT1 was examined in the podocytes using immunocytofluorescence assay. We found that Yishen capsule relieved pathological changes, decreased urine protein, increased SIRT1, LC3-II, and Beclin-1 expression, and reduced acetylated NF-κB p65 expression in vivo. In addition, rat serum containing Yishen capsule showed improved podocyte proliferation, promoted the mRNA and protein levels of LC3-II and Beclin-1, and induced nuclear translocation of SIRT1. Furthermore, it increased SIRT1 expression and decreased mRNA level of NF-κB in the serum. SIRT1 inhibitor increased the mRNA level of NF-κB. Our data suggests that Yishen capsule improves DN by promoting podocyte autophagy via the SIRT1/NF-κB pathway.
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Affiliation(s)
- Yuxiang Liu
- The First College for Clinical Medicine, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Wenyuan Liu
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Ziyuan Zhang
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Yaling Hu
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Xiaodong Zhang
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Yanyan Sun
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Qingqing Lei
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Dalin Sun
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Ting Liu
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Yanjun Fan
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Hui Li
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Wujie Ding
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Jingai Fang
- Department of Nephrology, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
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Yiqi Huoxue Recipe Regulates Autophagy through Degradation of Advanced Glycation End Products via mTOR/S6K1/LC3 Pathway in Diabetic Nephropathy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:9942678. [PMID: 34408785 PMCID: PMC8367537 DOI: 10.1155/2021/9942678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/28/2021] [Accepted: 07/22/2021] [Indexed: 11/30/2022]
Abstract
Background Yiqi Huoxue recipe can delay the progression of diabetic nephropathy, but its treatment mechanism is still unclear. We aimed to explore the effects of Yiqi Huoxue recipe on autophagy in diabetic nephropathy and its underlying mechanism. Methods All rats were randomly divided into seven groups. The body weight, kidney weight, blood glucose, glycated hemoglobin, urine protein, urine microprotein, creatinine, urea nitrogen, triglyceride, and lipoprotein were analyzed. HE, Masson, and periodic acid-Schiff staining were used to detect the severity of pathological changes in kidneys. The level of advanced glycation end products was assessed by the ELISA. Immunofluorescence staining was performed to check the expressions of podocin and nephrin. The expression levels of mTOR/S6K1/LC3 pathway-related proteins and mRNA were detected by qRT-PCR and western blotting. Results Yiqi Huoxue recipe significantly elevated body weight and significantly decreased kidney weight and kidney index. Yiqi Huoxue recipe significantly affected the levels of biochemical indicators in diabetic nephropathy and showed a regulatory effect on kidney damage and lipid metabolism disorders. ELISA showed that Yiqi Huoxue recipe significantly reduced the level of advanced glycation end products. The expressions of nephrin and podocin increased significantly, depending on the dosage of Yiqi Huoxue recipe. Additionally, Yiqi Huoxue recipe regulated the expression levels of p-AKT, mTOR, S6K1, and LC3. Conclusion Yiqi Huoxue recipe regulates podocyte autophagy to promote the degradation of advanced glycation end products through mTOR/S6K1/LC3 pathway. It has a certain guiding significance for the diagnosis and treatment of diabetic nephropathy.
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Zheng G, Tan Y, Shang Y, Liu Y, Hu B, Wang D, Han L, Wang Z, Zhang W, Ti Y, Zhong M. CIDEC silencing attenuates diabetic nephropathy via inhibiting apoptosis and promoting autophagy. J Diabetes Investig 2021; 12:1336-1345. [PMID: 33655702 PMCID: PMC8354488 DOI: 10.1111/jdi.13534] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 01/22/2021] [Accepted: 02/09/2021] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE The role of cell death-inducing DFF45-like effector C (CIDEC) in insulin resistance has been established, and it is considered to be an important trigger factor for the progression of diabetic nephropathy (DN). We intend to explore whether CIDEC plays an important role in the regulation of DN and its potential mechanism. METHODS High-fat diet and low dose streptozotocin were used to establish type 2 diabetic rat model. We investigate the role of CIDEC in the pathogenesis and process of DN through histopathological analysis, western blot and gene silencing. Meanwhile, the effect of CIDEC on renal tubular epithelial cells stimulated by high glucose was also verified. RESULTS DM group exhibited glucose and lipid metabolic disturbance, with hypertrophy of kidneys, damaged renal function, increased apoptosis, decreased autophagy, glomerulosclerosis and interstitial fibrosis. CIDEC gene silencing improved metabolic disorder and insulin resistance, alleviated renal hypertrophy and renal function damage, decreased glomerular and tubular apoptosis, increased autophagy and inhibited renal fibrosis. At the cellular level, high glucose stimulation increased CIDEC expression in renal tubular epithelial cells, accompanied by increased apoptosis and decreased autophagy. CIDEC gene silencing can improve autophagy and reduce apoptosis. At the molecular level, CIDEC gene silencing also decreased the expression of early growth response factor (EGR)1 and increased the expression of adipose triglyceride lipase (ATGL). CONCLUSION CIDEC gene silencing may delay the progression of DN by restoring autophagy activity and inhibiting apoptosis with the participation of EGR1and ATGL.
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Affiliation(s)
- Gao‐shu Zheng
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
- Department of CardiologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Yan‐min Tan
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Yuan‐yuan Shang
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Ya‐peng Liu
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Bo‐ang Hu
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Di Wang
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Lu Han
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
- Department of General PracticeCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Zhi‐hao Wang
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
- Shandong Key Laboratory of Cardiovascular ProteomicsDepartment of Geriatric MedicineCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Wei Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Yun Ti
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
| | - Ming Zhong
- The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyCheeloo College of MedicineQilu HospitalShandong UniversityJinanShandongChina
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Wang Y, Chang J, Wang ZQ, Li Y. Sirt3 promotes the autophagy of HK‑2 human proximal tubular epithelial cells via the inhibition of Notch‑1/Hes‑1 signaling. Mol Med Rep 2021; 24:634. [PMID: 34278469 PMCID: PMC8281085 DOI: 10.3892/mmr.2021.12273] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/11/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetic nephropathy (DN) is a predominant cause of end-stage renal disease. The impairment of the autophagy of human renal tubular epithelial cells (HK-2 cells) is involved in the pathogenic mechanisms of DN. Sirtuin (Sirt)3 regulates the scavenging of damaged organelles and maintains energy balance. The present study aimed to examine the protective effects of Sirt3 on HK-2 cells stimulated by high glucose (HG). HK-2 cells were cultured in normal glucose (NG), HG or hyperosmotic medium. The viability of the HK-2 cells was detected using a Cell Counting Kit-8 assay. The expression and localization of Sirt3 were detected via immunofluorescence. Following transfection with an overexpression plasmid, the expression levels of key components in the Notch homolog 1 (Notch-1)/hairy and enhancer of split-1 (Hes-1) pathway and those of the autophagy-related proteins, Beclin-1, LC-3II and p62, were measured by western blot analysis and reverse transcription-quantitative PCR (RT-qPCR). As the Notch-1/Hes-1 pathway was inhibited, the expression levels of Beclin-1, LC-3II and p62 were also examined at transcriptional and translational level. It was found that prolonged culture in HG medium markedly reduced cell viability compared with the cells cultured in NG or in NG + mannitol, an effect that was aggravated with the increasing duration of culture. HG was capable of inhibiting the expression levels of Beclin-1, LC-3II and Sirt3, and upregulating p62 and the Notch-1/Hes-1 pathway, as verified by western blot analysis and RT-qPCR. The results of immunofluorescence staining revealed that HG decreased Sirt3 expression. Sirt3 reversed the HG-induced inhibition of the expression of Beclin-1 and LC-3II and the upregulation of p62. Moreover, Sirt3 reversed the HG-induced inhibition of the Notch-1/Hes-1 signaling pathway. However, this autophagy-promoting effect of Sirt3 was counteracted by the Notch-1/Hes-1 pathway activator. On the whole, the present study demonstrated that Sirt3 promoted the autophagy of HK-2 cells, at least partly, via the downregulation of Notch-1/Hes-1.
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Affiliation(s)
- Ying Wang
- Department of Nephrology, Bayan Nur Hospital, Bayan Nur, Inner Mongolia Autonomous Region 015000, P.R. China
| | - Jiang Chang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Hainan Medical College, Haikou, Hainan 570102, P.R. China
| | - Zi-Qiang Wang
- Department of Nephrology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Ying Li
- Department of Nephrology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
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Wei L, Jian P, Erjiong H, Qihan Z. Ginkgetin alleviates high glucose-evoked mesangial cell oxidative stress injury, inflammation, and extracellular matrix (ECM) deposition in an AMPK/mTOR-mediated autophagy axis. Chem Biol Drug Des 2021; 98:620-630. [PMID: 34148304 DOI: 10.1111/cbdd.13915] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/14/2021] [Accepted: 06/12/2021] [Indexed: 11/28/2022]
Abstract
Diabetic nephropathy constitutes the leading cause for end-stage kidney disease. Ginkgetin is a common natural non-toxic biflavone and fulfills pleiotropic pharmacological characterizations, such as anti-inflammation and kidney injury. Nevertheless, its efficacy in diabetic nephropathy remains elusive. Here, ginkgetin exhibited little cytotoxicity in glomerular mesangial cells. Of note, ginkgetin restrained high glucose (HG)-induced mesangial cell proliferation and oxidative stress by inhibiting ROS and malonaldehyde levels, but enhancing antioxidant SOD activity. Additionally, ginkgetin suppressed HG-evoked transcript and release of inflammatory cytokine TNF-α, IL-1β, and IL-6. Concomitantly, the increased extracellular matrix (ECM) deposition in HG-treated glomerular mesangial cells was attenuated by ginkgetin via decreasing expression of collagen IV, fibronectin, and laminin. Intriguingly, ginkgetin-restored HG-impaired autophagy; whereas blocking autophagy by its inhibitor 3-MA overturned ginkgetin function against HG-evoked mesangial cell dysfunction. Mechanistically, ginkgetin-mediated AMPK/mTOR axis accounted for HG-impaired autophagy. Importantly, blockage of AMPK signaling reversed ginkgetin-restored autophagy and its protective efficacy against HG-induced dysfunction in mesangial cells. Thus, these findings highlight that ginkgetin may attenuate HG-evoked mesangial cell hyperplasia, oxidative stress, inflammation, and ECM accumulation by activating AMPk/mTOR-mediated autophagy pathway. Therefore, ginkgetin may alleviate the progression of diabetic nephropathy by regulating glomerular mesangial cell dysfunction, supporting a promising therapeutic agent against diabetic nephropathy.
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Affiliation(s)
- Lin Wei
- Departments of General Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Pan Jian
- Departments of Ophthalmology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huang Erjiong
- Departments of Gastroenterology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhu Qihan
- Departments of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Zhao N, Luo Q, Lin R, Li Q, Ma P. MiR-142-3p ameliorates high glucose-induced renal tubular epithelial cell injury by targeting BOD1. Clin Exp Nephrol 2021; 25:1182-1192. [PMID: 34145485 DOI: 10.1007/s10157-021-02102-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/10/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Tubular injury plays a crucial role in the pathogenesis of diabetic nephropathy (DN). It is well known that many microRNAs (miRNAs) exert crucial effects on tubular injury. This study intends to explore the effect of miR-142-3p on the apoptosis and oxidative stress of high glucose (HG)-treated renal tubular epithelial cells (HK-2) and its underlying mechanism. MATERIALS AND METHODS HK-2 cells were exposed to HG to mimic cell injury. MTT assays and flow cytometry analyses were conducted to measure cell viability and cell apoptosis, respectively. RT-qPCR and western blot analyses were carried out to detect RNA and protein levels, respectively. The levels of oxidative stress markers were evaluated by ELISA. The binding between miR-142-3p and biorientation of chromosomes in cell division 1 (BOD1) was validated by a luciferase reporter assay. RESULT MiR-142-3p is low-expressed in HG-stimulated HK-2 cells. Functionally, miR-142-3p overexpression attenuates the apoptosis and oxidative stress of HG-stimulated HK-2 cells. Mechanistically, BOD1 was confirmed to be targeted by miR-142-3p in HK-2 cells. Moreover, BOD1 overexpression reversed the suppressive effect of miR-142-3p overexpression on the apoptosis and oxidative stress of HK-2 cells treated with HG. CONCLUSION MiR-142-3p ameliorates HG-induced renal tubular epithelial cell injury by targeting BOD1. The finding might provide novel insight into the role of miR-142-3p/BOD1 axis in DN treatment.
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Affiliation(s)
- Ningmin Zhao
- Department of Pharmacy, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), No. 7 Weiwu Road, Zhengzhou, 450003, Henan, China
| | - Qing Luo
- Department of Pharmacy, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), No. 7 Weiwu Road, Zhengzhou, 450003, Henan, China
| | - Ruijuan Lin
- Department of Pharmacy, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), No. 7 Weiwu Road, Zhengzhou, 450003, Henan, China
| | - Qiaoyan Li
- Department of Pharmacy, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), No. 7 Weiwu Road, Zhengzhou, 450003, Henan, China
| | - Peizhi Ma
- Department of Pharmacy, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), No. 7 Weiwu Road, Zhengzhou, 450003, Henan, China.
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Xu J, Kitada M, Ogura Y, Liu H, Koya D. Dapagliflozin Restores Impaired Autophagy and Suppresses Inflammation in High Glucose-Treated HK-2 Cells. Cells 2021; 10:cells10061457. [PMID: 34200774 PMCID: PMC8230404 DOI: 10.3390/cells10061457] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/04/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023] Open
Abstract
Sodium-glucose cotransporter2 (SGLT2) inhibitors have a reno-protective effect in diabetic kidney disease. However, the detailed mechanism remains unclear. In this study, human proximal tubular cells (HK-2) were cultured in 5 mM glucose and 25 mM mannitol (control), 30 mM glucose (high glucose: HG), or HG and SGLT2 inhibitor, dapagliflozin-containing medium for 48 h. The autophagic flux was decreased, accompanied by the increased phosphorylation of S6 kinase ribosomal protein (p-S6RP) and the reduced phosphorylation of AMP-activated kinase (p-AMPK) expression in a HG condition. Compared to those of the control, dapagliflozin and SGLT2 knockdown ameliorated the HG-induced alterations of p-S6RP, p-AMPK, and autophagic flux. In addition, HG increased the nuclear translocation of nuclear factor-κB p65 (NF-κB) p65 and the cytoplasmic nucleotide-binding oligomerization domain-like receptor 3 (NLRP3), mature interleukin-1β (IL-1β), IL-6, and tumor necrosis factorα (TNFα) expression. Dapagliflozin, SGLT2 knockdown, and NF-κB p65 knockdown reduced the extent of these HG-induced inflammatory alterations. The inhibitory effect of dapagliflozin on the increase in the HG-induced nuclear translocation of NF-κB p65 was abrogated by knocking down AMPK. These data indicated that in diabetic renal proximal tubular cells, dapagliflozin ameliorates: (1) HG-induced autophagic flux reduction, via increased AMPK activity and mTOR suppression; and (2) inflammatory alterations due to NF-κB pathway suppression.
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Affiliation(s)
- Jing Xu
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Kahoku 920-0293, Ishikawa, Japan; (J.X.); (Y.O.); (H.L.); (D.K.)
| | - Munehiro Kitada
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Kahoku 920-0293, Ishikawa, Japan; (J.X.); (Y.O.); (H.L.); (D.K.)
- Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Kahoku 920-0293, Ishikawa, Japan
- Correspondence: ; Tel.: +81-76-286-2211
| | - Yoshio Ogura
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Kahoku 920-0293, Ishikawa, Japan; (J.X.); (Y.O.); (H.L.); (D.K.)
| | - Haijie Liu
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Kahoku 920-0293, Ishikawa, Japan; (J.X.); (Y.O.); (H.L.); (D.K.)
| | - Daisuke Koya
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Kahoku 920-0293, Ishikawa, Japan; (J.X.); (Y.O.); (H.L.); (D.K.)
- Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Kahoku 920-0293, Ishikawa, Japan
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Chen XC, Li ZH, Yang C, Tang JX, Lan HY, Liu HF. Lysosome Depletion-Triggered Autophagy Impairment in Progressive Kidney Injury. KIDNEY DISEASES 2021; 7:254-267. [PMID: 34395541 DOI: 10.1159/000515035] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 01/28/2021] [Indexed: 12/16/2022]
Abstract
Background Macroautophagy (autophagy) is a cellular recycling process involving the destruction of damaged organelles and proteins in intracellular lysosomes for efficient nutrient reuse. Summary Impairment of the autophagy-lysosome pathway is tightly associated with multiple kidney diseases, such as diabetic nephropathy, proteinuric kidney disease, acute kidney injury, crystalline nephropathy, and drug- and heavy metal-induced renal injury. The impairment in the process of autophagic clearance may induce injury in renal intrinsic cells by activating the inflammasome, inducing cell cycle arrest, and cell death. The lysosome depletion may be a key mechanism triggering this process. In this review, we discuss this pathway and summarize the protective mechanisms for restoration of lysosome function and autophagic flux via the endosomal sorting complex required for transport (ESCRT) machinery, lysophagy, and transcription factor EB-mediated lysosome biogenesis. Key Message Further exploring mechanisms of ESCRT, lysophagy, and lysosome biogenesis may provide novel therapy strategies for the management of kidney diseases.
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Affiliation(s)
- Xiao-Cui Chen
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Zhi-Hang Li
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Chen Yang
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Ji-Xin Tang
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hui-Yao Lan
- Department of Medicine and Therapeutics and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Hua-Feng Liu
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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Xu J, Kitada M, Ogura Y, Koya D. Relationship Between Autophagy and Metabolic Syndrome Characteristics in the Pathogenesis of Atherosclerosis. Front Cell Dev Biol 2021; 9:641852. [PMID: 33937238 PMCID: PMC8083902 DOI: 10.3389/fcell.2021.641852] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/19/2021] [Indexed: 12/11/2022] Open
Abstract
Atherosclerosis is the main cause of mortality in metabolic-related diseases, including cardiovascular disease and type 2 diabetes (T2DM). Atherosclerosis is characterized by lipid accumulation and increased inflammatory cytokines in the vascular wall, endothelial cell and vascular smooth muscle cell dysfunction and foam cell formation initiated by monocytes/macrophages. The characteristics of metabolic syndrome (MetS), including obesity, glucose intolerance, dyslipidemia and hypertension, may activate multiple mechanisms, such as insulin resistance, oxidative stress and inflammatory pathways, thereby contributing to increased risks of developing atherosclerosis and T2DM. Autophagy is a lysosomal degradation process that plays an important role in maintaining cellular metabolic homeostasis. Increasing evidence indicates that impaired autophagy induced by MetS is related to oxidative stress, inflammation, and foam cell formation, further promoting atherosclerosis. Basal and mild adaptive autophagy protect against the progression of atherosclerotic plaques, while excessive autophagy activation leads to cell death, plaque instability or even plaque rupture. Therefore, autophagic homeostasis is essential for the development and outcome of atherosclerosis. Here, we discuss the potential role of autophagy and metabolic syndrome in the pathophysiologic mechanisms of atherosclerosis and potential therapeutic drugs that target these molecular mechanisms.
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Affiliation(s)
- Jing Xu
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan.,Department of Endocrinology and Metabolism, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Munehiro Kitada
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan.,Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan
| | - Yoshio Ogura
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan
| | - Daisuke Koya
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan.,Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan
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Yamada S, Tanabe J, Ogura Y, Nagai Y, Sugaya T, Ohata K, Natsuki Y, Ichikawa D, Watanabe S, Inoue K, Hoshino S, Kimura K, Shibagaki Y, Kamijo-Ikemori A. Renoprotective effect of GLP-1 receptor agonist, liraglutide, in early-phase diabetic kidney disease in spontaneously diabetic Torii fatty rats. Clin Exp Nephrol 2021; 25:365-375. [PMID: 33409761 DOI: 10.1007/s10157-020-02007-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 11/30/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND The aim of this study is to investigate the renoprotective effect of the GLP-1 receptor agonist, liraglutide, in early-phase diabetic kidney disease (DKD) using an animal model of type 2 diabetes with several metabolic disorders. METHODS Male 8-week-old spontaneously diabetic Torii (SDT) fatty rats (n = 19) were randomly assigned to three groups. The liraglutide group (n = 6) was injected subcutaneously with liraglutide. Another treatment group (n = 6) received subcutaneous insulin against hyperglycemia and hydralazine against hypertension for matching blood glucose levels and blood pressure with the liraglutide group. The control groups of SDT fatty (n = 7) and non-diabetic Sprague-Dawley rats (n = 7) were injected only with a vehicle. RESULTS The control group of SDT fatty rats exhibited hyperglycemia, obesity, hypertension, hyperlipidemia, glomerular sclerosis, and tubulointerstitial injury with high urinary albumin and L-FABP levels. Liraglutide treatment reduced body weight, food intake, blood glucose and blood pressure levels, as well as ameliorated renal pathologic findings with lower urinary albumin and L-FABP levels. Liraglutide increased expressions of phosphorylated (p)-eNOS and p-AMPK in glomeruli, downregulated renal expression of p-mTOR, and increased renal expressions of LC3B-II, suggesting activation of autophagy. However, these effects were not caused by the treatments with insulin and hydralazine, despite comparable levels of hyperglycemia and hypertension to those achieved with liraglutide treatment. CONCLUSIONS Liraglutide may exert a renoprotective effect via prevention of glomerular endothelial abnormality and preservation of autophagy in early-phase DKD, independent of blood glucose, and blood pressure levels.
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Affiliation(s)
- Shohei Yamada
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Jun Tanabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Yuji Ogura
- Department of Physiology, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Yoshio Nagai
- Division of Metabolism and Endocrinology, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Takeshi Sugaya
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Keiichi Ohata
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Yasunori Natsuki
- Institute for Ultrastructural Morphology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Daisuke Ichikawa
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Shiika Watanabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Kazuho Inoue
- Department of Anatomy, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Seiko Hoshino
- Department of Anatomy, St. Marianna University School of Medicine, Kanagawa, Japan
| | | | - Yugo Shibagaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Atsuko Kamijo-Ikemori
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan.
- Department of Anatomy, St. Marianna University School of Medicine, Kanagawa, Japan.
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Chang J, Yan J, Li X, Liu N, Zheng R, Zhong Y. Update on the Mechanisms of Tubular Cell Injury in Diabetic Kidney Disease. Front Med (Lausanne) 2021; 8:661076. [PMID: 33859992 PMCID: PMC8042139 DOI: 10.3389/fmed.2021.661076] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 03/08/2021] [Indexed: 02/06/2023] Open
Abstract
Increasing evidence supports a role of proximal tubular (PT) injury in the progression of diabetic kidney disease (DKD), in patients with or without proteinuria. Research on the mechanisms of the PT injury in DKD could help us to identify potential new biomarkers and drug targets for DKD. A high glucose transport state and mismatched local hypoxia in the PT of diabetes patients may be the initiating factors causing PT injury. Other mechanism such as mitochondrial dysfunction, reactive oxygen species (ROS) overproduction, ER stress, and deficiency of autophagy interact with each other leading to more PT injury by forming a vicious circle. PT injury eventually leads to the development of tubulointerstitial inflammation and fibrosis in DKD. Many downstream signaling pathways have been demonstrated to mediate these diseased processes. This review focuses mostly on the novel mechanisms of proximal renal tubular injury in DKD and we believe such review could help us to better understand the pathogenesis of DKD and identify potential new therapies for this disease.
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Affiliation(s)
- Jingsheng Chang
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiayi Yan
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xueling Li
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ni Liu
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Rong Zheng
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yifei Zhong
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Jiang YY, Shui JC, Zhang BX, Chin JW, Yue RS. The Potential Roles of Artemisinin and Its Derivatives in the Treatment of Type 2 Diabetes Mellitus. Front Pharmacol 2020; 11:585487. [PMID: 33381036 PMCID: PMC7768903 DOI: 10.3389/fphar.2020.585487] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/13/2020] [Indexed: 12/11/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic disease that has become a global public health problem. Studies on T2DM prevention and treatment mostly focus on discovering therapeutic drugs. Artemisinin and its derivatives were originally used as antimalarial treatments. In recent years, the roles of artemisinins in T2DM have attracted much attention. Artemisinin treatments not only attenuate insulin resistance and restore islet ß-cell function in T2DM but also have potential therapeutic effects on diabetic complications, including diabetic kidney disease, cognitive impairment, diabetic retinopathy, and diabetic cardiovascular disease. Many in vitro and in vivo experiments have confirmed the therapeutic utility of artemisinin and its derivatives on T2DM, but no article has systematically demonstrated the specific role artemisinin plays in the treatment of T2DM. This review summarizes the potential therapeutic effects and mechanism of artemisinin and its derivatives in T2DM and associated complications, providing a reference for subsequent related research.
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Affiliation(s)
- Ya-Yi Jiang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jia-Cheng Shui
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bo-Xun Zhang
- Department of Endocrinology, Guang'anmen Hospital of China, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jia-Wei Chin
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ren-Song Yue
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Ishii H, Kaneko S, Yanai K, Aomatsu A, Hirai K, Ookawara S, Ishibashi K, Morishita Y. MicroRNAs in Podocyte Injury in Diabetic Nephropathy. Front Genet 2020; 11:993. [PMID: 33193581 PMCID: PMC7477342 DOI: 10.3389/fgene.2020.00993] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/05/2020] [Indexed: 12/24/2022] Open
Abstract
Diabetic nephropathy is one of the major complications of diabetes mellitus and is the leading cause of end-stage renal disease worldwide. Podocyte injury contributes to the development of diabetic nephropathy. However, the molecules that regulate podocyte injury in diabetic nephropathy have not been fully clarified. MicroRNAs (miRNAs) are small non-coding RNAs that can inhibit the translation of target messenger RNAs. Previous reports have described alteration of the expression levels of many miRNAs in cultured podocyte cells stimulated with a high glucose concentration and podocytes in rodent models of diabetic nephropathy. The associations between podocyte injury and miRNA expression levels in blood, urine, and kidney in patients with diabetic nephropathy have also been reported. Moreover, modulation of the expression of several miRNAs has been shown to have protective effects against podocyte injury in diabetic nephropathy in cultured podocyte cells in vitro and in rodent models of diabetic nephropathy in vivo. Therefore, this review focuses on miRNAs in podocyte injury in diabetic nephropathy, with regard to their potential as biomarkers and miRNA modulation as a therapeutic option.
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Affiliation(s)
- Hiroki Ishii
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Shohei Kaneko
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Katsunori Yanai
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Akinori Aomatsu
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Keiji Hirai
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Susumu Ookawara
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kenichi Ishibashi
- Department of Medical Physiology, Meiji Pharmaceutical University, Kiyose, Japan
| | - Yoshiyuki Morishita
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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Autophagy in diabetic nephropathy: a review. Int Urol Nephrol 2020; 52:1705-1712. [PMID: 32661628 DOI: 10.1007/s11255-020-02545-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/15/2020] [Indexed: 12/14/2022]
Abstract
Diabetes mellitus (DM) is the leading cause of end stage renal disease. 40% of the patients worldwide will require replacement therapy after 20 years of DM worldwide. Early-stage diabetic nephropathy is characterized by hyperfiltration related to hypeglycemia-induced afferent artery vasodilatation with micro-and macroalbuminuria. Later on, proteinuria with arterial hypertension may appear, culminating in glomerular filtration rate (GFR) decline and end stage renal disease. Forty percent of diabetic patients develop microvascular and macrovascular complications, with increased risk among patients with genetic predisposition, such as Haptoglobin 2-2 phenotype. The most frequent complications in the daily clinical practice are diabetic kidney disease, diabetic retinopathy and vascular disease, such as coronary artery disease and stroke. Various pathways are involved in the pathogenesis of diabetic kidney disease. Chronic systemic inflammation and the inflammatory response, such as increased circulating cytokines (Interleukins), have been recognized as main players in the development and progression of diabetic kidney disease. DM is also associated with increased oxidative stress, and alterations in carbohydrate, lipid and protein metabolism. Overexpression of the renin-angiotensin-aldosterone system (RAAS) in the kidney, the vitamin D-Vitamin D receptor-klotho axis, and autophagy. Differences in the ATG5 protein levels or ATG5 gene expression involved in the autophagy process have been associated with diabetic complications such as diabetic kidney disease. Under normal blood glucose level, autophagy is an important protective mechanism in renal epithelial cells, including podocytes, proximal tubular, mesangial and endothelial cells. Down regulation of the autophagic mechanism, as in hyperglycemic condition, can contribute to the development and progression of diabetic kidney disease.
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Wen D, Tan RZ, Zhao CY, Li JC, Zhong X, Diao H, Lin X, Duan DD, Fan JM, Xie XS, Wang L. Astragalus mongholicus Bunge and Panax notoginseng (Burkill) F.H. Chen Formula for Renal Injury in Diabetic Nephropathy- In Vivo and In Vitro Evidence for Autophagy Regulation. Front Pharmacol 2020; 11:732. [PMID: 32595492 PMCID: PMC7303297 DOI: 10.3389/fphar.2020.00732] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 05/01/2020] [Indexed: 12/19/2022] Open
Abstract
Background Diabetic nephropathy (DN) is a serious complication of diabetes mellitus (DM) with limited treatment options. DN leads to progressive renal failure and accelerates rapidly into end-stage renal disease. Astragalus mongholicus Bunge and Panax notoginseng (Burkill) F.H. Chen formula (APF) is a traditional Chinese medicine (TCM) formula widely used to treat chronic kidney diseases (CKD) in the clinic in the southwest of China. The aim of this study is to explore how APF and its related TCM theory work on DN and whether mTOR/PINK1/Parkin signaling plays a part in this process. Methods HPLC was used for preliminary chemical analysis and quantitative analysis of the five components of APF. An in vivo autophagy deficiency model was established in C57BL/6 mice by streptozocin (STZ) combined with a high-fat and high-sugar diet, while the in vitro autophagy deficiency model was induced with high glucose (HG) in renal mesangial cells (RMCs). Renal histopathology staining was performed to investigate the extents of inflammation and injury. Real time-PCR and Western blotting techniques were utilized to assess autophagy-related proteins. Results APF significantly ameliorated renal injury in DN mice, specifically restoring blood urea nitrogen, serum creatinine, and 24-hour albuminuria. APF also reduced the mRNA and protein expressions of TNFα, IL-1β, and IL-6 in STZ-induced DN mice. Furthermore, APF improved the autophagy deficiency induced by STZ in vivo or HG in vitro, as revealed by changes in the expressions of mTOR, PINK1, Parkin, Beclin 1, p62, and LC3B. Notably, inhibition of autophagy with 3-methyladenine in APF-treated RMCs aggravated cellular damage and altered mTOR/PINK1/Parkin signaling, indicating that APF rescued HG damage through promoting autophagy. Conclusion APF may protect the kidneys from inflammation injuries in DN by upregulating autophagy via suppressing mTOR and activating PINK1/Parkin signaling. This experimental evidence strongly supports APF as a potential option for the prevention and treatment of DN.
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Affiliation(s)
- Dan Wen
- Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China.,Department of Nephrology, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Rui-Zhi Tan
- Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Chang-Ying Zhao
- Department of Endocrinology, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Jian-Chun Li
- Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Xia Zhong
- Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Hui Diao
- Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China.,Department of Nephrology, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xiao Lin
- Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Dayue Darrel Duan
- Center for Phenomics of Traditional Chinese Medicine, Southwest Medical University, Luzhou, China
| | - Jun-Ming Fan
- Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China.,Chengdu Medical College, Chengdu, China
| | - Xi-Sheng Xie
- Department of Nephrology, Nanchong Central Hospital, Nanchong, China
| | - Li Wang
- Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
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Sodium Glucose Co-Transporter 2 Inhibitor Ameliorates Autophagic Flux Impairment on Renal Proximal Tubular Cells in Obesity Mice. Int J Mol Sci 2020; 21:ijms21114054. [PMID: 32517059 PMCID: PMC7312919 DOI: 10.3390/ijms21114054] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 05/26/2020] [Accepted: 05/26/2020] [Indexed: 12/14/2022] Open
Abstract
Obesity is supposed to cause renal injury via autophagy deficiency. Recently, sodium glucose co-transporter 2 inhibitors (SGLT2i) were reported to protect renal injury. However, the mechanisms of SGLT2i for renal protection are unclear. Here, we investigated the effect of SGLT2i for autophagy in renal proximal tubular cells (PTCs) on obesity mice. We fed C57BL/6J mice with a normal diet (ND) or high-fat and -sugar diet (HFSD) for nine weeks, then administered SGLT2i, empagliflozin, or control compound for one week. Each group contained N = 5. The urinary N-acetyl-beta-d-glucosaminidase level in the HFSD group significantly increased compared to ND group. The tubular damage was suppressed in the SGLT2i–HFSD group. In electron microscopic analysis, multi lamellar bodies that increased in autophagy deficiency were increased in PTCs in the HFSD group but significantly suppressed in the SGLT2i group. The autophagosomes of damaged mitochondria in PTCs in the HFSD group frequently appeared in the SGLT2i group. p62 accumulations in PTCs were significantly increased in HFSD group but significantly suppressed by SGLT2i. In addition, the mammalian target of rapamycin was activated in the HFSD group but significantly suppressed in SGLT2i group. These data suggest that SGLT2i has renal protective effects against obesity via improving autophagy flux impairment in PTCs on a HFSD.
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Xu C, Zhou X, Xie T, Zhou Y, Zhang Q, Jiang S, Zhang R, Liao L, Dong J. Renal tubular Bim mediates the tubule-podocyte crosstalk via NFAT2 to induce podocyte cytoskeletal dysfunction. Theranostics 2020; 10:6806-6824. [PMID: 32550905 PMCID: PMC7295056 DOI: 10.7150/thno.43145] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/03/2020] [Indexed: 12/17/2022] Open
Abstract
Diabetic nephropathy (DN) is mainly regarded as diabetic glomerulopathy, and its progression is tightly correlated with tubular epithelial lesions. However, the underlying molecular mechanisms linking tubular damage and glomerulopathy are poorly understood. Methods: We previously reported that the upregulation of Bim mediated proximal tubular epithelial cell (PTEC) apoptosis and was crucial in the early stages of DN. Herein we modulated Bim expression in PTECs and subsequently determined podocyte (PC) cytoskeletal arrangement by building a Transwell co-culture system in high glucose (HG). Results: Compared to normal glucose, exposure to 40 mM of HG for 48 h induced significant expression of Bim in PTECs and disorganization in the PC cytoskeleton. When cocultured with PTECs in HG, exacerbated filamentous actin (F-actin) rearrangement and reduced synaptopodin levels were detected in PCs. In contrast, gene knockdown of Bim in PTECs was correlated with the absence of PC cytoskeletal disorganization. NFAT2 level and its nuclear translocation in PTECs were decreased by suppressing Bim expression. Upregulating NFAT2 disrupted the beneficial effects on F-actin organization in PCs obtained by inhibiting Bim. LncRNA microarray analysis identified NONHSAT179542.1, which was implicated in Bim-mediated PC cytoskeletal disorder. Conclusion: Our study clarified the functional role of Bim, a pro-apoptotic factor, which is involved in the crosstalk between PTECs and PCs. Bim promotes NFAT2 activation in PTECs, inducing the downregulation of lncRNA NONHSAT179542.1 in PCs, contributing to the cytoskeletal damage. Identification of the role of the Bim/NFAT2 pathway may represent a promising research direction for a better understanding of DN development.
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Shi W, Guo Z, Ji Y, Feng J. The protective effect of recombinant globular adiponectin on testis by modulating autophagy, endoplasmic reticulum stress and oxidative stress in streptozotocin-induced diabetic mice. Eur J Pharmacol 2020; 879:173132. [PMID: 32353359 DOI: 10.1016/j.ejphar.2020.173132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 02/07/2023]
Abstract
This study was to investigate whether recombinant globular adiponectin produced its protective effect on the testis of diabetic mice by modulating autophagy, endoplasmic reticulum stress and oxidative stress. Male mice were randomly divided into control, diabetic, diabetic treated with low and high dose of adiponectin. Mice were killed at the termination after 4 weeks and 8 weeks of adiponectin treatment. Serum levels of glucose, lipids, testosterone, insulin, LH and FSH were measured. The protein expression of glucose-regulated protein 78 (GRP78), C/EBP homologous protein (CHOP), Caspase12, Beclin1, microtubule-associated protein light chain 3 (LC3) and p62 was determined by western blotting. The mRNA expression of adiponectin receptor 1 (AdipoR1), p22phox, p47phox, nuclear factor erythroid2-related factor 2 (Nrf2), NAD(P)H-quinone oxidoreductase 1(NQO1), heme oxygenase-1 (HO-1) and superoxide dismutase (SOD) were determined by real-time fluorescence quantitative PCR. The testicular weight, the sperm number and motility, and the serum levels of testosterone and insulin were significantly decreased in diabetic mice (P < 0.05). The expression of Beclin1, LC3, Nrf2, NQO1, HO-1, SOD and AdipoR1 were significantly decreased (P < 0.05), while the expression of GRP78, CHOP, Caspase12, p62, p22phox and p47phox were notably increased in the testes of diabetic mice (P < 0.05). Adiponectin treatment significantly reversed the above-mentioned changes in the testes of diabetic mice, some of which were dose- and time-dependent (P < 0.05). These data suggested that recombinant globular adiponectin may produce the protective effect on the testes of diabetic mice by inducing autophagy and inhibiting ER stress and oxidative stress.
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Affiliation(s)
- Wenjiao Shi
- Department of Endocrinology, Second Hospital, Shanxi Medical University, Taiyuan, 030001, China; Department of Anesthesiology, Xinhua Hospital, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Zhixin Guo
- Department of Endocrinology, Second Hospital, Shanxi Medical University, Taiyuan, 030001, China.
| | - Yun Ji
- Department of Anesthesiology, Xinhua Hospital, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Jingyi Feng
- Department of Endocrinology, Second Hospital, Shanxi Medical University, Taiyuan, 030001, China
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SGLT2 Inhibitor Empagliflozin and DPP4 Inhibitor Linagliptin Reactivate Glomerular Autophagy in db/db Mice, a Model of Type 2 Diabetes. Int J Mol Sci 2020; 21:ijms21082987. [PMID: 32340263 PMCID: PMC7215949 DOI: 10.3390/ijms21082987] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 04/19/2020] [Accepted: 04/21/2020] [Indexed: 02/08/2023] Open
Abstract
Recent data have indicated the emerging role of glomerular autophagy in diabetic kidney disease. We aimed to assess the effect of the SGLT2 inhibitor empagliflozin, the DPP4 inhibitor linagliptin, and their combination, on glomerular autophagy in a model of type 2 diabetes. Eight-week-old male db/db mice were randomly assigned to treatment with empagliflozin, linagliptin, empagliflozin–linagliptin or vehicle for 8 weeks. Age-matched non-diabetic db/+ mice acted as controls. To estimate glomerular autophagy, immunohistochemistry for beclin-1 and LAMP-1 was performed. Podocyte autophagy was assessed by counting the volume density (Vv) of autophagosomes, lysosomes and autolysosomes by transmission electron microscopy. LC3B and LAMP-1, autophagy markers, and caspase-3 and Bcl-2, apoptotic markers, were evaluated in renal cortex by western blot. Vehicle-treated db/db mice had weak glomerular staining for beclin-1 and LAMP-1 and reduced Vv of autophagosomes, autolysosomes and lysosomes in podocytes. Empagliflozin and linagliptin, both as monotherapy and in combination, enhanced the areas of glomerular staining for beclin-1 and LAMP-1 and increased Vv of autophagosomes and autolysosomes in podocytes. Renal LC3B and Bcl-2 were restored in actively treated animals. LAMP-1 expression was enhanced in the empagliflozin group; caspase-3 expression decreased in the empagliflozin–linagliptin group only. Mesangial expansion, podocyte foot process effacement and urinary albumin excretion were mitigated by both agents. The data provide further explanation for the mechanism of the renoprotective effect of SGLT2 inhibitors and DPP4 inhibitors in diabetes.
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Álvarez-Cilleros D, López-Oliva ME, Martín MÁ, Ramos S. Cocoa ameliorates renal injury in Zucker diabetic fatty rats by preventing oxidative stress, apoptosis and inactivation of autophagy. Food Funct 2020; 10:7926-7939. [PMID: 31773121 DOI: 10.1039/c9fo01806a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Redox balance, autophagy and apoptosis are main processes involved in the development of diabetic nephropathy. Epidemiological and animal studies suggest that cocoa might reduce the risk of diabetic complications. However, the molecular mechanisms responsible for these potential preventive activities and whether cocoa exerts beneficial effects on dysregulated signalling pathways involved in cellular antioxidant defence, autophagy and apoptosis in the diabetic kidney remain largely unknown. Therefore, this work investigated the effect of a cocoa-rich diet on the mentioned processes in the renal cortex of Zucker Diabetic Fatty (ZDF) rats. Male ZDF rats were fed either a control or cocoa-rich diet (10%), and Zucker lean animals received the control diet (10-20 weeks-of-life). ZDF rats fed with cocoa decreased body weight and glucose and insulin levels, and improved renal function. Cocoa intake further prevented the enhanced renal cortical oxidative stress in diabetic rats by regulating the antioxidant defence system and close-related proteins to cytoprotection and cell response; thus, cocoa diminished oxidative markers (reactive oxygen species and carbonyl groups) and NADPH-oxidase-4 levels, and restored key enzymatic antioxidant activities (superoxide dismutase and catalase), nuclear-erythroid-2-related factor-2, and ERK-MAPK levels, as well as sirtuin-1/5'-AMP-activated-protein kinase signalling. Moreover, in ZDF rats cocoa-rich diet contributed to alleviation of the renal cortical injury through autophagy activation (p62 upregulation, and downregulation of beclin-1 and LC3), and inhibition of apoptosis (Bcl-xL stimulation and suppression of Bax and caspases-9 and -3). These findings provide the first in vivo evidence on the molecular mechanisms of cocoa to circumvent renal cortical damage that involve improvement of antioxidant competences, stimulation of autophagy and suppression of apoptosis in ZDF rats.
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Affiliation(s)
- David Álvarez-Cilleros
- Department of Metabolism and Nutrition, Institute of Food Science and Technology and Nutrition (ICTAN), Consejo Superior de Investigaciones Científicas (CSIC), José Antonio Novais 10, Ciudad Universitaria, 28040 Madrid, Spain.
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Xu J, Kitada M, Koya D. The impact of mitochondrial quality control by Sirtuins on the treatment of type 2 diabetes and diabetic kidney disease. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165756. [PMID: 32147421 DOI: 10.1016/j.bbadis.2020.165756] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/23/2020] [Accepted: 02/28/2020] [Indexed: 12/20/2022]
Abstract
The incidence of type 2 diabetes mellitus (T2DM) and diabetic kidney disease (DKD) has significantly increased worldwide in recent decades, and improved treatments for T2DM and DKD are urgently needed. The pathogenesis of aging-related disorders, such as T2DM and DKD, involves multiple mechanisms, including inflammation, autophagy impairment, and oxidative stress, which are closely associated with mitochondrial dysfunction. Therefore, mitochondrial quality control may be a novel therapeutic target for T2DM and DKD. Previous reports have shown that members of the mammalian Sirtuin family, SIRT 1-7, which are recognized as antiaging molecules, play a crucial role in the regulation of mitochondrial function and quality control through the modulation of oxidative stress, inflammation and autophagy. In this review, we summarized the research published in recent years to highlight the role of Sirtuins in mitochondrial quality control as a therapeutic target for T2DM and DKD.
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Affiliation(s)
- Jing Xu
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan; Department of Endocrinology and Metabolism, The Affiliated Hospital of Guizhou Medical University, NO. 28, Guiyi Street, Guiyang, Guizhou 550004, China
| | - Munehiro Kitada
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan; Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan.
| | - Daisuke Koya
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan; Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan
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Ren H, Shao Y, Wu C, Ma X, Lv C, Wang Q. Metformin alleviates oxidative stress and enhances autophagy in diabetic kidney disease via AMPK/SIRT1-FoxO1 pathway. Mol Cell Endocrinol 2020; 500:110628. [PMID: 31647955 DOI: 10.1016/j.mce.2019.110628] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 02/08/2023]
Abstract
Metformin, as the basic pharmacological therapy and the first preventive drug in type 2 diabetes mellitus (T2DM), is proved to have potential protection in diabetic kidney disease (DKD). Here, we established a diabetic rat model induced by high-fat diet and low dose streptozotocin, and high glucose cultured rat mesangial cells (RMCs) pre-treated with metformin or transfected with AMPK, SIRT1 and FoxO1 small interfering RNA, and detected oxidative stress and autophagy related factors to explore the molecular mechanisms of metformin on DKD via adenosine monophosphate-activated protein kinase (AMPK)/silent mating type information regulation 2 homolog-1 (sirtuin-1, SIRT1)-Forkhead box protein O1 (FoxO1) pathway. We found that metformin effectively alleviated the disorders of glycolipid metabolism, renal function injury in diabetic rats, and relieved oxidative stress, enhanced autophagy and slowed down abnormal cell proliferation in high glucose cultured RMCs through AMPK/SIRT1-FoxO1 pathway, indicating the protective role of metformin against the pathological process of DKD.
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Affiliation(s)
- Huiwen Ren
- Department of Endocrinology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China; Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, Liaoning, China
| | - Ying Shao
- Department of Endocrinology, the Second Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Can Wu
- Department of Gastroenterology and Endoscopy, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xiaoyu Ma
- The Cadre Department, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Chuan Lv
- Department of Endocrinology, the People's Hospital of Liaoning Province, Shenyang, Liaoning, China
| | - Qiuyue Wang
- Department of Endocrinology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China.
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Lv J, Wu Y, Mai Y, Bu S. Noncoding RNAs in Diabetic Nephropathy: Pathogenesis, Biomarkers, and Therapy. J Diabetes Res 2020; 2020:3960857. [PMID: 32656264 PMCID: PMC7327582 DOI: 10.1155/2020/3960857] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/27/2020] [Accepted: 05/20/2020] [Indexed: 12/14/2022] Open
Abstract
The correlation between diabetes and systematic well-being on human life has long established. As a common complication of diabetes, the prevalence of diabetic nephropathy (DN) has been increasing globally. DN is known to be a major cause of end-stage kidney disease (ESKD). Till now, the molecular mechanisms for DN have not been fully explored and the effective therapies are still lacking. Noncoding RNAs are a class of RNAs produced by genome transcription that cannot be translated into proteins. It has been documented that ncRNAs participate in the pathogenesis of DN by regulating inflammation, apoptosis, autophagy, cell proliferation, and other pathological processes. In this review, the pathological roles and diagnostic and therapeutic potential of three types of ncRNAs (microRNA, long noncoding RNA, and circular RNA) in the progression of DN are summarized and illustrated.
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Affiliation(s)
- Jiarong Lv
- Diabetes Research Center, Medical School of Ningbo University, Ningbo, 315000 Zhejiang, China
| | - Yu Wu
- Diabetes Research Center, Medical School of Ningbo University, Ningbo, 315000 Zhejiang, China
| | - Yifeng Mai
- The Affiliated Hospital of Medical School of Ningbo University, Ningbo, 315000 Zhejiang, China
| | - Shizhong Bu
- Diabetes Research Center, Medical School of Ningbo University, Ningbo, 315000 Zhejiang, China
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Fan X, Li Z, Wang X, Wang J, Hao Z. Silencing of KPNA2 inhibits high glucose-induced podocyte injury via inactivation of mTORC1/p70S6K signaling pathway. Biochem Biophys Res Commun 2019; 521:1017-1023. [PMID: 31727365 DOI: 10.1016/j.bbrc.2019.10.200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 10/31/2019] [Indexed: 12/17/2022]
Abstract
Dysregulation of apoptotic and autophagic function are characterized as the main pathogeneses of diabetic nephropathy (DN). It has been reported that Karyopherin Alpha 2 (KPNA2) contributes to apoptosis and autophagy in various cells, but its role in DN development remains unknown. The purpose of present study was to explore the function and underling mechanisms of KPNA2 in development of DN. In this study, 30 mM high glucose (HG)-evoked podocytes were used as DN model. The expression of KPNA2 was detected by qRT-PCR and Western blot assays. The cell viability was tested by CCK-8 kit, the apoptosis was measured using flow cytometry assay, the apoptotic and the autophagy related genes was detected by Western blot. Our results indicated that KPNA2 was significantly increased after HG stimulation. Knockdown of KPNA2 inhibited apoptosis, and promoted cell viability and autophagy in HG-treated podocytes. In addition, silencing of KPNA2 deactivated mTORC1/p70S6K pathway activation via regulating SLC1A5. Further results demonstrated that activating mTORC1/p70S6K pathway strongly ameliorated the effect of KPNA2 on cell viability, apoptosis and autophagy. Therefore, our study suggested that knockdown of KPNA2 rescued HG-induced injury via blocking activation of mTORC1/p70S6K pathway by mediating SLC1A5.
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Affiliation(s)
- Xiaobao Fan
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Medical College of Xi 'an Jiaotong University, Xi'an City, Shaanxi Province, 710061, China; Nephrotic Hemodialysis Center, Shaanxi Provincial People's Hospital, Xi'an City, Shaanxi Province, 710068, China
| | - Zhenjiang Li
- Nephrotic Hemodialysis Center, Shaanxi Provincial People's Hospital, Xi'an City, Shaanxi Province, 710068, China
| | - Xiaoming Wang
- Nephrotic Hemodialysis Center, Shaanxi Provincial People's Hospital, Xi'an City, Shaanxi Province, 710068, China
| | - Jing Wang
- Nephrotic Hemodialysis Center, Shaanxi Provincial People's Hospital, Xi'an City, Shaanxi Province, 710068, China
| | - Zhiming Hao
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Medical College of Xi 'an Jiaotong University, Xi'an City, Shaanxi Province, 710061, China.
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Abstract
Autophagy is a cellular homeostatic program for the turnover of cellular organelles and proteins, in which double-membraned vesicles (autophagosomes) sequester cytoplasmic cargos, which are subsequently delivered to the lysosome for degradation. Emerging evidence implicates autophagy as an important modulator of human disease. Macroautophagy and selective autophagy (e.g., mitophagy, aggrephagy) can influence cellular processes, including cell death, inflammation, and immune responses, and thereby exert both adaptive and maladaptive roles in disease pathogenesis. Autophagy has been implicated in acute kidney injury, which can arise in response to nephrotoxins, sepsis, and ischemia/reperfusion, and in chronic kidney diseases. The latter includes comorbidities of diabetes and recent evidence for chronic obstructive pulmonary disease-associated kidney injury. Roles of autophagy in polycystic kidney disease and kidney cancer have also been described. Targeting the autophagy pathway may have therapeutic benefit in the treatment of kidney disorders.
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Affiliation(s)
- Mary E Choi
- Joan and Sanford I. Weill Department of Medicine, Division of Nephrology and Hypertension, Weill Cornell Medicine, New York, NY 10065, USA; .,NewYork-Presbyterian Hospital/Weill Cornell Medical Center, New York, NY 10065, USA
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49
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Lin H, Wang T, Ruan Y, Liu K, Li H, Wang S, Li M, Liu J. Rapamycin Supplementation May Ameliorate Erectile Function in Rats With Streptozotocin-Induced Type 1 Diabetes by Inducing Autophagy and Inhibiting Apoptosis, Endothelial Dysfunction, and Corporal Fibrosis. J Sex Med 2019; 15:1246-1259. [PMID: 30224017 DOI: 10.1016/j.jsxm.2018.07.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/16/2018] [Accepted: 07/23/2018] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Erectile dysfunction (ED), which is common in patients with diabetes mellitus (DM), seriously affects quality of life. Previous studies on the treatment of DM-induced ED (DMED) involve autophagy, but the specific effect and mechanism of treatment are not yet clear. AIM To investigate the effect and mechanism of rapamycin, an autophagy inducer, in ameliorating DMED. METHODS 45 male Sprague-Dawley rats (7 weeks old) were used in the experiment. 8 rats were randomly selected as the control group; the other rats were treated with streptozotocin to induce type 1 DM. After 10 weeks, an apomorphine test was used to confirm DMED. Rats with DMED were intraperitoneally injected with rapamycin or vehicle for 3 weeks. Rats in the control group were injected with saline. Erectile function in rats was measured by electrically stimulating the cavernous nerve. The penises were then harvested for histologic examinations, ribonucleic acid (RNA), and protein levels of related factors by immunohistochemistry, immunofluorescence, real-time polymerase chain reaction, enzyme-linked immunosorbent assay, and Western blot. MAIN OUTCOME MEASURE Erectile function was evaluated by maximum intracavernous pressure and mean arterial pressure. Penile tissues were used to perform histologic examinations and to determine the RNA and protein levels. RESULTS Erectile function, which was impaired in rats with DMED, was significantly ameliorated in the DMED + rapamycin group. The nitric oxide (NO)/cyclic guanosine monophosphate (cGMP) pathway was inhibited in the DMED group, and rapamycin significantly reduced this inhibition. The DMED group showed increased autophagy and apoptosis level compared with the non-diabetic group, and rapamycin increased the autophagy level and decreased the apoptosis level in the penis. Penile fibrosis was more severe in the DMED group than in the control group and was partially but significantly improved in the DMED + rapamycin group compared with the DMED group. The adenosine monophosphate-activated protein kinase (AMPK)/mammalian target of rapamycin kinase (mTOR) and PI3K/AKT/mTOR pathways were activated, and the mTOR (regulatory associated protein of mTOR, complex 1 [raptor])/p70 ribosomal protein S6 kinase (p70S6K) pathway was inhibited in the DMED group. Compared with DMED group, rapamycin led to lower AMPK/mTOR and AKT/mTOR pathways expression, a higher degree of mTOR (raptor)/p70S6K pathway inhibition, and no change in the mTORC2-related pathway. CLINICAL IMPLICATIONS Rapamycin was effective in restoring erectile function in type 1 DMED models. STRENGTH AND LIMITATIONS This study suggested for the first time that rapamycin, an autophagy inducer, is effective in restoring erectile function in rats with diabetes. However, the rat model might not represent the human condition. CONCLUSION Rapamycin improved erectile function in rats with DMED, likely by promoting autophagy, inhibiting apoptosis and fibrotic activity, and ameliorating endothelial function. These findings provide evidence of a potential treatment option for DMED. Lin H, Wang T, Ruan Y, et al. Rapamycin supplementation may ameliorate erectile function in rats with streptozotocin-induced type 1 diabetes by inducing autophagy and inhibiting apoptosis, endothelial dysfunction, and corporal fibrosis. J Sex Med 2018;15:1246-1259.
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Affiliation(s)
- Huang Lin
- Department of Urology and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China
| | - Tao Wang
- Department of Urology and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China
| | - Yajun Ruan
- Department of Urology and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China
| | - Kang Liu
- Department of Urology and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China
| | - Hao Li
- Department of Urology and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China
| | - Shaogang Wang
- Department of Urology and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China
| | - Mingchao Li
- Department of Urology and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China.
| | - Jihong Liu
- Department of Urology and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China
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Wang X, Zhao L, Ajay AK, Jiao B, Zhang X, Wang C, Gao X, Yuan Z, Liu H, Liu WJ. QiDiTangShen Granules Activate Renal Nutrient-Sensing Associated Autophagy in db/db Mice. Front Physiol 2019; 10:1224. [PMID: 31632286 PMCID: PMC6779835 DOI: 10.3389/fphys.2019.01224] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 09/09/2019] [Indexed: 12/24/2022] Open
Abstract
QiDiTangShen granules (QDTS) have been proven to reduce the proteinuria in patients with diabetic nephropathy (DN) effectively. The present study was aimed to investigate the mechanism underlying QDTS's renoprotection. The main components of QDTS were identified by ultra-high liquid chromatography-tandem mass spectrometry and pharmacological databases, among which active components were screened by oral bioavailability and drug-likeness. Their regulation on autophagy-related nutrient-sensing signal molecules (AMPK, SIRT1, and mTOR) was retrieved and analyzed through the Pubmed database. Then, db/db mice were randomly divided into three groups (model control, valsartan and QDTS), and given intragastric administration for 12 weeks, separately. Fasting and random blood glucose, body weight, urinary albumin excretion (UAE) and injury markers of liver and kidney were investigated to evaluate the effects and safety. Renal histological lesions were assessed, and the expressions of proteins related to nutrient-sensing signals and autophagy were investigated. Thirteen active components were screened from 78 components identified. Over half the components had already been reported to improve nutrient-sensing signals. QDTS significantly reduced UAE, ameliorated mesangial matrix deposition, alleviate the expression of protein and mRNA of TGF-β, α-SMA, and Col I, as well as improved the quality of mitochondria and the number of autophagic vesicles of renal tubular cells although the blood glucose was not decreased in db/db mice. Compared to the db/db group, the expression of the autophagy-inducible protein (Atg14 and Beclin1) and microtubule-associated protein 1 light chain 3-II (LC3-II) were up-regulated, autophagic substrate transporter p62 was down-regulated in QDTS group. It was also found that the expression of SIRT1 and the proportion of p-AMPK (thr172)/AMPK were increased, while the p-mTOR (ser2448)/mTOR ratio was decreased after QDTS treatment in db/db mice, which was consistent with the effect of its active ingredients on the nutrient-sensing signal pathway as reported previously. Therefore, QDTS may prevent the progression of DN by offering the anti-fibrotic effect. The renoprotection is probably attributable to the regulation of nutrient-sensing signal pathways, which activates autophagy.
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Affiliation(s)
- Xiangming Wang
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Li Zhao
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Amrendra K. Ajay
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Baihai Jiao
- Department of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - Xianhui Zhang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Health Management Center, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Chunguo Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xue Gao
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Zhongyu Yuan
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Hongfang Liu
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Wei Jing Liu
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
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