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Guo J, Zhang C, Zhao H, Yan Y, Liu Z. The key mediator of diabetic kidney disease: Potassium channel dysfunction. Genes Dis 2024; 11:101119. [PMID: 38523672 PMCID: PMC10958065 DOI: 10.1016/j.gendis.2023.101119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 06/11/2022] [Accepted: 06/04/2023] [Indexed: 03/26/2024] Open
Abstract
Diabetic kidney disease is a leading cause of end-stage renal disease, making it a global public health concern. The molecular mechanisms underlying diabetic kidney disease have not been elucidated due to its complex pathogenesis. Thus, exploring these mechanisms from new perspectives is the current focus of research concerning diabetic kidney disease. Ion channels are important proteins that maintain the physiological functions of cells and organs. Among ion channels, potassium channels stand out, because they are the most common and important channels on eukaryotic cell surfaces and function as the basis for cell excitability. Certain potassium channel abnormalities have been found to be closely related to diabetic kidney disease progression and genetic susceptibility, such as KATP, KCa, Kir, and KV. In this review, we summarized the roles of different types of potassium channels in the occurrence and development of diabetic kidney disease to discuss whether the development of DKD is due to potassium channel dysfunction and present new ideas for the treatment of DKD.
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Affiliation(s)
- Jia Guo
- Nephrology Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, Henan 450052, China
- Research Center for Kidney Disease, Zhengzhou, Henan 450052, China
| | - Chaojie Zhang
- Nephrology Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, Henan 450052, China
- Research Center for Kidney Disease, Zhengzhou, Henan 450052, China
| | - Hui Zhao
- Nephrology Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, Henan 450052, China
- Research Center for Kidney Disease, Zhengzhou, Henan 450052, China
| | - Yufan Yan
- Nephrology Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, Henan 450052, China
- Research Center for Kidney Disease, Zhengzhou, Henan 450052, China
| | - Zhangsuo Liu
- Nephrology Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, Henan 450052, China
- Research Center for Kidney Disease, Zhengzhou, Henan 450052, China
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Chen J, Zhang D, Zhou D, Dai Z, Wang J. Association between red cell distribution width/serum albumin ratio and diabetic kidney disease. J Diabetes 2024; 16:e13575. [PMID: 38923843 PMCID: PMC11200132 DOI: 10.1111/1753-0407.13575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/25/2024] [Accepted: 05/06/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Previous studies have shown that the red cell distribution width (RDW)/serum albumin ratio (RA) is an integrative and new inflammatory marker. RA is associated with clinical outcomes in a variety of diseases, but the clinical value of RDW/RA in the assessment of diabetic kidney disease (DKD) has not been elucidated. We examined the link between diabetic RA and DKD while controlling for a wide variety of possible confounders. METHODS Retrospective cohort analysis of the National Health and Nutrition Examination Survey (NHANES: 2009-2018) database from the Second Affiliated Hospital and Yuying Children's Hospital and the Wenzhou Medical University (WMU) database was conducted. Multivariate logistic regression analysis was used to assess the association between RA and DKD. RESULTS Overall, 4513 diabetic patients from the NHANES database (n = 2839) and the WMU (n = 1412) were included in this study; 974 patients were diagnosed with DKD in NHANES and 462 in WMU. In the NHANES cohort, diabetes mellitus (DM) patients with higher RA level had a higher risk of DKD (odds ratio = 1.461, 95% confidence interval: 1.250-1.707, p < 0.00001). After adjusting for confounders and propensity score-matched (PSM) analysis, both shown RA levels were independently linked to DKD (pAdjust = 0.00994, pPSM = 0.02889). Similar results were also observed in the WMU cohort (p < 0.00001). CONCLUSIONS The study observes that the RA was an independent predictor of DKD in DM patients. The RA, a biomarker that is cost-effective and easy-to-access, may have potential for risk stratification of DKD.
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Affiliation(s)
- Jiaqi Chen
- Department of EndocrinologySecond Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Daguan Zhang
- Department of GastroenterologyFirst Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Depu Zhou
- Department of EndocrinologyFirst Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Zhijuan Dai
- Department of EndocrinologySecond Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Jie Wang
- Department of EndocrinologySecond Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhouChina
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Yoo SA, Sayo MIA, Lee JH. Association between chronic renal disease and psoriasis risk in diabetes patients: A Korean population-based study. Indian J Dermatol Venereol Leprol 2024; 0:1-7. [PMID: 38899413 DOI: 10.25259/ijdvl_669_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/18/2023] [Indexed: 06/21/2024]
Abstract
Background Several studies have reported that psoriasis has a positive correlation with type 2 diabetes mellitus (DM). Understanding the risk of psoriasis in diabetic patients is significant because it allows for early intervention and potential insights into the common pathways between the two conditions. Objectives We analysed the risk of psoriasis according to the estimated glomerular filtration rate (eGFR) and proteinuria level in DM patients using Korean population-based data. Methods This study was a retrospective cohort study using data collected from the country in the form of exploratory data analysis. A total of 927,234 participants diagnosed with DM were enrolled. Patients under the age of 20 with existing psoriasis or psoriasis developed within 1 year and missing data were excluded. The development of psoriasis was the primary outcome within a follow-up period of 7.83 ± 1.68 years. Results Of the 840,395 final participants, 28,010 (3.33%) patients developed psoriasis. In multivariate-adjusted Cox proportional hazards regression models, the DM patients with eGFR < 30 had a higher risk of psoriasis after adjustment (eGFR 60-90, hazard ratio [HR] 1 (Ref.); eGFR < 30, HR 1.173, 95% CI 1.089-1.264). In addition, there was an increased psoriatic risk of patients with DM and proteinuria after adjustment (negative, HR 1 (Ref.); 2+, HR 1.164, 95% CI 1.080-1.254; 3+, HR 1.433, 95% CI 1.273-1.613; 4+, HR 1.508, 95% CI 1.177-1.931). Limitations The severity of psoriasis was not measured since the occurrence of psoriasis was the outcome. Details of oral hypoglycaemic agents such as type and dose were not investigated. Conclusion This study showed that a decrease in eGFR and aggravation of proteinuria increase the risk of psoriasis in diabetic patients. Therefore, by using eGFR and proteinuria as predictive risk factors of psoriasis in DM patients, early and proactive treatment may play a vital role in managing diabetic patients.
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Affiliation(s)
- Seung Ah Yoo
- Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul, Republic of Korea
| | | | - Ji Hyun Lee
- Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul, Republic of Korea
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Chen M, Fang Y, Ge Y, Qiu S, Dworkin L, Gong R. The redox-sensitive GSK3β is a key regulator of glomerular podocyte injury in type 2 diabetic kidney disease. Redox Biol 2024; 72:103127. [PMID: 38527400 PMCID: PMC10979123 DOI: 10.1016/j.redox.2024.103127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/06/2024] [Accepted: 03/15/2024] [Indexed: 03/27/2024] Open
Abstract
Emerging evidence suggests that GSK3β, a redox-sensitive transducer downstream of insulin signaling, acts as a convergent point for myriad pathways implicated in kidney injury, repair, and regeneration. However, its role in diabetic kidney disease remains controversial. In cultured glomerular podocytes, exposure to a milieu of type 2 diabetes elicited prominent signs of podocyte injury and degeneration, marked by loss of homeostatic marker proteins like synaptopodin, actin cytoskeleton disruption, oxidative stress, apoptosis, and stress-induced premature senescence, as shown by increased staining for senescence-associated β-galactosidase activity, amplified formation of γH2AX foci, and elevated expression of mediators of senescence signaling, like p21 and p16INK4A. These degenerative changes coincided with GSK3β hyperactivity, as evidenced by GSK3β overexpression and reduced inhibitory phosphorylation of GSK3β, and were averted by tideglusib, a highly-selective small molecule inhibitor of GSK3β. In agreement, post-hoc analysis of a publicly-available glomerular transcriptomics dataset from patients with type 2 diabetic nephropathy revealed that the curated diabetic nephropathy-related gene set was enriched in high GSK3β expression group. Mechanistically, GSK3β-modulated nuclear factor Nrf2 signaling is involved in diabetic podocytopathy, because GSK3β knockdown reinforced Nrf2 antioxidant response and suppressed oxidative stress, resulting in an improvement in podocyte injury and senescence. Conversely, ectopic expression of the constitutively active mutant of GSK3β impaired Nrf2 antioxidant response and augmented oxidative stress, culminating in an exacerbated diabetic podocyte injury and senescence. Moreover, IRS-1 was found to be a cognate substrate of GSK3β for phosphorylation at IRS-1S332, which negatively regulates IRS-1 activity. GSK3β hyperactivity promoted IRS-1 phosphorylation, denoting a desensitized insulin signaling. Consistently, in vivo in db/db mice with diabetic nephropathy, GSK3β was hyperactive in glomerular podocytes, associated with IRS-1 hyperphosphorylation, impaired Nrf2 response and premature senescence. Our finding suggests that GSK3β is likely a novel therapeutic target for treating type 2 diabetic glomerular injury.
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Affiliation(s)
- Mengxuan Chen
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, USA
| | - Yudong Fang
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, USA
| | - Yan Ge
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, USA
| | - Shuhao Qiu
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, USA
| | - Lance Dworkin
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine, Toledo, OH, USA
| | - Rujun Gong
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine, Toledo, OH, USA; Center for Diabetes and Endocrine Research, University of Toledo Medical Center, Toledo, OH, USA.
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Han F, Wu S, Dong Y, Liu Y, Sun B, Chen L. Aberrant expression of NEDD4L disrupts mitochondrial homeostasis by downregulating CaMKKβ in diabetic kidney disease. J Transl Med 2024; 22:465. [PMID: 38755664 PMCID: PMC11100153 DOI: 10.1186/s12967-024-05207-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/15/2024] [Indexed: 05/18/2024] Open
Abstract
Disturbance in mitochondrial homeostasis within proximal tubules is a critical characteristic associated with diabetic kidney disease (DKD). CaMKKβ/AMPK signaling plays an important role in regulating mitochondrial homeostasis. Despite the downregulation of CaMKKβ in DKD pathology, the underlying mechanism remains elusive. The expression of NEDD4L, which is primarily localized to renal proximal tubules, is significantly upregulated in the renal tubules of mice with DKD. Coimmunoprecipitation (Co-IP) assays revealed a physical interaction between NEDD4L and CaMKKβ. Moreover, deletion of NEDD4L under high glucose conditions prevented rapid CaMKKβ protein degradation. In vitro studies revealed that the aberrant expression of NEDD4L negatively influences the protein stability of CaMKKβ. This study also explored the role of NEDD4L in DKD by using AAV-shNedd4L in db/db mice. These findings confirmed that NEDD4L inhibition leads to a decrease in urine protein excretion, tubulointerstitial fibrosis, and oxidative stress, and mitochondrial dysfunction. Further in vitro studies demonstrated that si-Nedd4L suppressed mitochondrial fission and reactive oxygen species (ROS) production, effects antagonized by si-CaMKKβ. In summary, the findings provided herein provide strong evidence that dysregulated NEDD4L disturbs mitochondrial homeostasis by negatively modulating CaMKKβ in the context of DKD. This evidence underscores the potential of therapeutic interventions targeting NEDD4L and CaMKKβ to safeguard renal tubular function in the management of DKD.
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Affiliation(s)
- Fei Han
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital Tianjin and Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
| | - Shi Wu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital Tianjin and Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
| | - Ya Dong
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital Tianjin and Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
| | - Yanjie Liu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital Tianjin and Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
| | - Bei Sun
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital Tianjin and Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
| | - Liming Chen
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital Tianjin and Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China.
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Zang L, Saitoh S, Katayama K, Zhou W, Nishimura N, Shimada Y. A zebrafish model of diabetic nephropathy shows hyperglycemia, proteinuria and activation of the PI3K/Akt pathway. Dis Model Mech 2024; 17:dmm050438. [PMID: 38747698 DOI: 10.1242/dmm.050438] [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: 08/03/2023] [Accepted: 05/08/2024] [Indexed: 05/30/2024] Open
Abstract
Diabetic nephropathy (DN), as a complication of diabetes, is a substantial healthcare challenge owing to the high risk of morbidity and mortality involved. Although significant progress has been made in understanding the pathogenesis of DN, more efficient models are required to develop new therapeutics. Here, we created a DN model in zebrafish by crossing diabetic Tg(acta1:dnIGF1R-EGFP) and proteinuria-tracing Tg(l-fabp::VDBP-GFP) lines, named zMIR/VDBP. Overfed adult zMIR/VDBP fish developed severe hyperglycemia and proteinuria, which were not observed in wild-type zebrafish. Renal histopathology revealed human DN-like characteristics, such as glomerular basement membrane thickening, foot process effacement and glomerular sclerosis. Glomerular dysfunction was restored upon calorie restriction. RNA sequencing analysis demonstrated that DN zebrafish kidneys exhibited transcriptional patterns similar to those seen in human DN pathogenesis. Notably, the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway was activated, a phenomenon observed in the early phase of human DN. In addition, metformin improved hyperglycemia and proteinuria in DN zebrafish by modulating Akt phosphorylation. Our results indicate that zMIR/VDBP fish are suitable for elucidating the mechanisms underlying human DN and could be a powerful tool for therapeutic discovery.
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Affiliation(s)
- Liqing Zang
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Mie 514-8507, Japan
- Mie University Zebrafish Research Center, Tsu, Mie 514-8507, Japan
| | - Sei Saitoh
- Department of Biomedical Molecular Sciences (Anatomy II), Fujita Health University School of Medicine, Toyoake 470-1192, Japan
| | - Kan Katayama
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Weibin Zhou
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York City, NY 10029-5674, USA
| | - Norihiro Nishimura
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Mie 514-8507, Japan
- Mie University Zebrafish Research Center, Tsu, Mie 514-8507, Japan
| | - Yasuhito Shimada
- Mie University Zebrafish Research Center, Tsu, Mie 514-8507, Japan
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
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Zhong D, Chen J, Qiao R, Song C, Hao C, Zou Y, Bai M, Su W, Yang B, Sun D, Jia Z, Sun Y. Genetic or pharmacologic blockade of mPGES-2 attenuates renal lipotoxicity and diabetic kidney disease by targeting Rev-Erbα/FABP5 signaling. Cell Rep 2024; 43:114075. [PMID: 38583151 DOI: 10.1016/j.celrep.2024.114075] [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: 10/09/2023] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 04/09/2024] Open
Abstract
Diabetic kidney disease (DKD) is one of the most common complications of diabetes, and no specific drugs are clinically available. We have previously demonstrated that inhibiting microsomal prostaglandin E synthase-2 (mPGES-2) alleviated type 2 diabetes by enhancing β cell function and promoting insulin production. However, the involvement of mPGES-2 in DKD remains unclear. Here, we aimed to analyze the association of enhanced mPGES-2 expression with impaired metabolic homeostasis of renal lipids and subsequent renal damage. Notably, global knockout or pharmacological blockage of mPGES-2 attenuated diabetic podocyte injury and tubulointerstitial fibrosis, thereby ameliorating lipid accumulation and lipotoxicity. These findings were further confirmed in podocyte- or tubule-specific mPGES-2-deficient mice. Mechanistically, mPGES-2 and Rev-Erbα competed for heme binding to regulate fatty acid binding protein 5 expression and lipid metabolism in the diabetic kidney. Our findings suggest a potential strategy for treating DKD via mPGES-2 inhibition.
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Affiliation(s)
- Dandan Zhong
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Jingshuo Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Ranran Qiao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China; Nanjing Key Laboratory of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China; Public Experimental Research Center of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Chang Song
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China; Public Experimental Research Center of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Chang Hao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China; Public Experimental Research Center of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Yingying Zou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Mi Bai
- Nanjing Key Laboratory of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Wen Su
- Department of Pathophysiology, Shenzhen University, Shenzhen 518060, China; Shenzhen University Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Baoxue Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China
| | - Dong Sun
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, China.
| | - Zhanjun Jia
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China; Nanjing Key Laboratory of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China.
| | - Ying Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China.
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Lin S, Wang L, Jia Y, Sun Y, Qiao P, Quan Y, Liu J, Hu H, Yang B, Zhou H. Lipin-1 deficiency deteriorates defect of fatty acid β-oxidation and lipid-related kidney damage in diabetic kidney disease. Transl Res 2024; 266:1-15. [PMID: 37433392 DOI: 10.1016/j.trsl.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/13/2023]
Abstract
Diabetic lipo-toxicity is a fundamental pathophysiologic mechanism in DM and is now increasingly recognized a key determinant of DKD. Targeting lipid metabolic disorders is an important therapeutic strategy for the treatment of DM and its complications, including DKD. This study aimed to explore the molecular mechanism of lipid metabolic regulation in kidney, especially renal PTECs, and elucidate the role of lipid metabolic related molecule lipin-1 in diabetic lipid-related kidney damage. In this study, lipin-1-deficient db/db mouse model and STZ/HFD-induced T2DM mouse model were used to determine the effect of lipin-1 on DKD development. Then RPTCs and LPIN1 knockdown or overexpressed HK-2 cells induced by PA were used to investigate the mechanism. We found that the expression of lipin-1 increased early and then decreased in kidney during the progression of DKD. Glucose and lipid metabolic disorders and renal insufficiency were found in these 2 types of diabetic mouse models. Interestingly, lipin-1 deficiency might be a pathogenic driver of DKD-to-CKD transition, which could further accelerate the imbalance of renal lipid homeostasis, the dysfunction of mitochondrial and energy metabolism in PTECs. Mechanistically, lipin-1 deficiency resulted in aggravated PTECs injury to tubulointerstitial fibrosis in DKD by downregulating FAO via inhibiting PGC-1α/PPARα mediated Cpt1α/HNF4α signaling and upregulating SREBPs to promote fat synthesis. This study provided new insights into the role of lipin-1 as a regulator for maintaining lipid homeostasis in the kidney, especially PTECs, and its deficiency led to the progression of DKD.
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Affiliation(s)
- Simei Lin
- Department of Pharmacology, State Key Laboratory of Natural and Biomimetic Drugs, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Liang Wang
- Department of Pharmacology, State Key Laboratory of Natural and Biomimetic Drugs, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yingli Jia
- Department of Pharmacology, State Key Laboratory of Natural and Biomimetic Drugs, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Ying Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Panshuang Qiao
- Department of Pharmacology, State Key Laboratory of Natural and Biomimetic Drugs, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yazhu Quan
- Department of Pharmacology, State Key Laboratory of Natural and Biomimetic Drugs, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jihan Liu
- Department of Pharmacology, State Key Laboratory of Natural and Biomimetic Drugs, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Huihui Hu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Fujian, China
| | - Baoxue Yang
- Department of Pharmacology, State Key Laboratory of Natural and Biomimetic Drugs, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China
| | - Hong Zhou
- Department of Pharmacology, State Key Laboratory of Natural and Biomimetic Drugs, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.
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Jiang Y, Li Z, Yue R, Liu G, Yang M, Long C, Yan D. Evidential support for garlic supplements against diabetic kidney disease: a preclinical meta-analysis and systematic review. Food Funct 2024; 15:12-36. [PMID: 38051214 DOI: 10.1039/d3fo02407e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Garlic (Allium sativum L.) is a popular spice that is widely used for food and medicinal purposes and has shown potential effects on diabetic kidney disease (DKD). Nevertheless, systematic preclinical studies are still lacking. In this meta-analysis and systematic review, we evaluated the role and potential mechanisms of action of garlic and its derived components in animal models of DKD. We searched eight databases for relevant studies from the establishment of the databases to December 2022 and updated in April 2023 before the completion of this review. A total of 24 trials were included in the meta-analysis. It provided preliminary evidence that supplementing with garlic could improve the indicators of renal function (BUN, Scr, 24 h urine volume, proteinuria, and KI) and metabolic disorders (BG, insulin, and body weight). Meanwhile, the beneficial effects of garlic and its components in DKD could be related to alleviating oxidative stress, suppressing inflammatory reactions, delaying renal fibrosis, and improving glucose metabolism. Furthermore, time-dose interval analysis exhibited relatively greater effectiveness when garlic products were supplied at doses of 500 mg kg-1 with interventions lasting 8-10 weeks, and garlic components were administered at doses of 45-150 mg kg-1 with interventions lasting 4-10 weeks. This meta-analysis and systematic review highlights for the first time the therapeutic potential of garlic supplementation in animal models of DKD and offers a more thorough evaluation of its effects and mechanisms to establish an evidence-based basis for designing future clinical trials.
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Affiliation(s)
- Yayi Jiang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Zihan Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Rensong Yue
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Guojie Liu
- School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Maoyi Yang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Caiyi Long
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Dawei Yan
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
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Prieto I, Kavanagh M, Jimenez-Castilla L, Pardines M, Lazaro I, Herrero del Real I, Flores-Muñoz M, Egido J, Lopez-Franco O, Gomez-Guerrero C. A mutual regulatory loop between miR-155 and SOCS1 influences renal inflammation and diabetic kidney disease. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 34:102041. [PMID: 37842165 PMCID: PMC10571033 DOI: 10.1016/j.omtn.2023.102041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 09/23/2023] [Indexed: 10/17/2023]
Abstract
Diabetic kidney disease (DKD) is a common microvascular complication of diabetes, a global health issue. Hyperglycemia, in concert with cytokines, activates the Janus kinase (JAK)/signal transducer and activator of transcription (STAT) pathway to induce inflammation and oxidative stress contributing to renal damage. There is evidence of microRNA-155 (miR-155) involvement in diabetes complications, but the underlying mechanisms are unclear. In this study, gain- and loss-of-function experiments were conducted to investigate the interplay between miR-155-5p and suppressor of cytokine signaling 1 (SOCS1) in the regulation of the JAK/STAT pathway during renal inflammation and DKD. In experimental models of mesangial injury and diabetes, miR-155-5p expression correlated inversely with SOCS1 and positively with albuminuria and expression levels of cytokines and prooxidant genes. In renal cells, miR-155-5p mimic downregulated SOCS1 and promoted STAT1/3 activation, cytokine expression, and cell proliferation and migration. Conversely, both miR-155-5p antagonism and SOCS1 overexpression protected cells from inflammation and hyperglycemia damage. In vivo, SOCS1 gene delivery decreased miR-155-5p and kidney injury in diabetic mice. Moreover, therapeutic inhibition of miR-155-5p suppressed STAT1/3 activation and alleviated albuminuria, mesangial damage, and renal expression of inflammatory and fibrotic genes. In conclusion, modulation of the miR-155/SOCS1 axis protects kidneys against diabetic damage, thus highlighting its potential as therapeutic target for DKD.
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Affiliation(s)
- Ignacio Prieto
- Renal, Vascular and Diabetes Research Lab, Instituto de Investigaciones Sanitarias-Fundacion Jimenez Diaz (IIS-FJD), Universidad Autonoma de Madrid (UAM), 28040 Madrid, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28029 Madrid, Spain
| | - María Kavanagh
- Renal, Vascular and Diabetes Research Lab, Instituto de Investigaciones Sanitarias-Fundacion Jimenez Diaz (IIS-FJD), Universidad Autonoma de Madrid (UAM), 28040 Madrid, Spain
| | - Luna Jimenez-Castilla
- Renal, Vascular and Diabetes Research Lab, Instituto de Investigaciones Sanitarias-Fundacion Jimenez Diaz (IIS-FJD), Universidad Autonoma de Madrid (UAM), 28040 Madrid, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28029 Madrid, Spain
| | - Marisa Pardines
- Renal, Vascular and Diabetes Research Lab, Instituto de Investigaciones Sanitarias-Fundacion Jimenez Diaz (IIS-FJD), Universidad Autonoma de Madrid (UAM), 28040 Madrid, Spain
| | - Iolanda Lazaro
- Cardiovascular Risk and Nutrition, Hospital del Mar Medical Research Institute-IMIM, 08003 Barcelona, Spain
| | - Isabel Herrero del Real
- Renal, Vascular and Diabetes Research Lab, Instituto de Investigaciones Sanitarias-Fundacion Jimenez Diaz (IIS-FJD), Universidad Autonoma de Madrid (UAM), 28040 Madrid, Spain
| | - Monica Flores-Muñoz
- Translational Medicine Lab, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa 91140, Veracruz, Mexico
| | - Jesus Egido
- Renal, Vascular and Diabetes Research Lab, Instituto de Investigaciones Sanitarias-Fundacion Jimenez Diaz (IIS-FJD), Universidad Autonoma de Madrid (UAM), 28040 Madrid, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28029 Madrid, Spain
| | - Oscar Lopez-Franco
- Translational Medicine Lab, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa 91140, Veracruz, Mexico
| | - Carmen Gomez-Guerrero
- Renal, Vascular and Diabetes Research Lab, Instituto de Investigaciones Sanitarias-Fundacion Jimenez Diaz (IIS-FJD), Universidad Autonoma de Madrid (UAM), 28040 Madrid, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28029 Madrid, Spain
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11
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Muramatsu H, Akimoto N, Yajima K, Hashimoto M, Katakura M. Suppressing Effects of Docosahexaenoic Acid-Containing Diets on Oxidative Stress and Fibrosis in 5/6 Nephrectomized Rats. KIDNEY360 2023; 4:1690-1701. [PMID: 37222582 PMCID: PMC10758513 DOI: 10.34067/kid.0000000000000152] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 04/04/2023] [Indexed: 05/25/2023]
Abstract
Key Points Increased albuminuria on 5/6 nephrectomized rats, as reported earlier, is attenuated by arachidonic acid–containing and docosahexaenoic acid (DHA)–containing diets. This study established that DHA affects both oxidative stress and fibrosis in the kidney. DHA suppressed the oxidative stress and fibrosis, hence suppressing the progression of renal failure. Background Urinary albumin excretion gradually increases after nephrectomy, which eventually progresses toward renal failure. Our previous study had reported that arachidonic acid (ARA)–containing or docosahexaenoic acid (DHA)–containing diet attenuates the increasing urinary albumin excretion. This study aimed to investigate the effects of ARA-containing or/and DHA-containing diets on oxidative stress and fibrosis that cause kidney injury in 5/6 nephrectomized rats. Methods Sprague–Dawley rats were randomly divided into control group, ARA group, DHA group, and ARA+DHA group. Rats underwent 5/6 kidney removal and were fed ARA-containing or/and DHA-containing diet each five groups continuously for 4 weeks. We collected urine, plasma, and kidney samples 4 weeks after surgery and investigated the effects of ARA-containing and DHA-containing diets on oxidative stress, inflammation, and fibrosis in the kidney. Results Urinary albumin excretion, indoxyl sulfate, reactive oxygen species, TNF-α levels, and fibrosis in the kidney were all increased on nephrectomy; however, they were attenuated after feeding the rats with DHA-containing diet. Conclusion One possible mechanism of preventing chronic renal failure would be the suppression of indoxyl sulfate accumulation, oxidative stress, and kidney fibrosis arising due to nephrectomy. The results collectively suggested that DHA-containing diets can suppress the progression of renal failure.
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Affiliation(s)
- Hiroki Muramatsu
- Laboratory of Nutritional Physiology, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado, Japan
| | - Naoe Akimoto
- Laboratory of Nutritional Physiology, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado, Japan
| | - Katsuhiko Yajima
- Laboratory of Nutritional Physiology, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado, Japan
| | | | - Masanori Katakura
- Laboratory of Nutritional Physiology, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado, Japan
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12
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Zhang K, Li M, Yin K, Wang M, Dong Q, Miao Z, Guan Y, Wu Q, Zhou Y. Hyperoside mediates protection from diabetes kidney disease by regulating ROS-ERK signaling pathway and pyroptosis. Phytother Res 2023; 37:5871-5882. [PMID: 37646382 DOI: 10.1002/ptr.7993] [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: 05/15/2023] [Revised: 07/28/2023] [Accepted: 08/09/2023] [Indexed: 09/01/2023]
Abstract
Renal tubular injury is a key factor in the progression of diabetic kidney disease to end-stage renal disease. Hyperoside, a natural flavonol glycoside in various plants, is a potentially effective drug for the clinical treatment of diabetic kidney disease. However, the specific mechanisms remain unknown. Therefore, this study will explore the effect and mechanism of hyperoside on renal tubulointerstitium in diabetic kidney disease. db/db mouse (C57BL/KsJ) is a model of type 2 diabetes resulting from Leptin receptor point mutations, with the appearance of diabetic kidney disease. Therefore, db/db mice were used for in vivo experimental studies. In vitro, human renal tubular epithelial cells were incubated with bovine serum albumin to simulate the injury of renal tubular epithelial cells caused by excessive albumin in primary urine. The experimental results showed that hyperoside could improve kidney function and reduce kidney tissue damage in mice, and could inhibit oxidative stress, extracellularly regulated protein kinases 1/2 signaling activation, and pyroptosis in human renal tubular epithelial cells. Therefore, hyperoside inhibited oxidative stress by regulating the activation of the extracellularly regulated protein kinases 1/2/mitogen-activated protein kinase signaling pathway, thereby alleviating proteinuria-induced pyroptosis in renal tubular epithelial cells. This study provides novel evidence that could facilitate the clinical application of hyperoside in diabetic kidney disease treatment.
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Affiliation(s)
- Kejia Zhang
- Public Experimental Research Center, Xuzhou Medical University, Xuzhou, China
| | - MiaoMiao Li
- Department of Pathophysiology, Xuzhou Medical University, Xuzhou, China
- Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, Xuzhou, China
| | - Kaiwen Yin
- The Second Clinical Medical School, Xuzhou Medical University, Xuzhou, China
| | - Minjie Wang
- The Second Clinical Medical School, Xuzhou Medical University, Xuzhou, China
| | - Qiuchi Dong
- The Second Clinical Medical School, Xuzhou Medical University, Xuzhou, China
| | - Zilan Miao
- The Second Clinical Medical School, Xuzhou Medical University, Xuzhou, China
| | - Yubo Guan
- Department of Pathophysiology, Xuzhou Medical University, Xuzhou, China
- Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, Xuzhou, China
| | - Qi Wu
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Yao Zhou
- Department of Pathophysiology, Xuzhou Medical University, Xuzhou, China
- Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, Xuzhou, China
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13
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Wei C, Wang C, Li R, Bai Y, Wang X, Fang Q, Chen X, Li P. The pharmacological mechanism of Abelmoschus manihot in the treatment of chronic kidney disease. Heliyon 2023; 9:e22017. [PMID: 38058638 PMCID: PMC10695975 DOI: 10.1016/j.heliyon.2023.e22017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/08/2023] [Accepted: 11/02/2023] [Indexed: 12/08/2023] Open
Abstract
Abelmoschus manihot (A.manihot) is a herbaceous flowering medicinal plant and flavonoids are its main pharmacological active ingredients. A.manihot is listed in the 2020 edition of the Chinese Pharmacopoeia for the treatment of chronic kidney disease (CKD). A.manihot significantly reduces proteinuria in CKD, and the effectiveness and safety of A.manihot in the treatment including primary glomerulonephropathy and diabetic kidney disease (DKD) have been proved by several randomized controlled trials (RCT). Emerging pharmacological studies have explored the potential active small molecules and the underlying mechanisms in A.manihot. The active constituents of A.manihot are mainly seven flavonoids, including hibifolin, hyperoside, isoquercetin, rutin, quercetin, myricetin, and quercetin-3-O-robinobioside. The mechanisms of action mainly include alleviating renal fibrosis, reducing the inflammatory response and decreasing the apoptosis of podocytes. In this review, we summarize the updated information of active components and molecular mechanisms of A.manihot on chronic kidney disease.
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Affiliation(s)
- Cuiting Wei
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Nephrology, First Medical Center of Chinese People's, Liberation Army (PLA) General Hospital, Nephrology Institute of the Chinese, People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Chao Wang
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Nephrology, First Medical Center of Chinese People's, Liberation Army (PLA) General Hospital, Nephrology Institute of the Chinese, People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Run Li
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Nephrology, First Medical Center of Chinese People's, Liberation Army (PLA) General Hospital, Nephrology Institute of the Chinese, People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Yunfeng Bai
- Department of Nephrology, First Medical Center of Chinese People's, Liberation Army (PLA) General Hospital, Nephrology Institute of the Chinese, People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Xue Wang
- Department of Nephrology, First Medical Center of Chinese People's, Liberation Army (PLA) General Hospital, Nephrology Institute of the Chinese, People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Qingyun Fang
- Department of Nephrology, First Medical Center of Chinese People's, Liberation Army (PLA) General Hospital, Nephrology Institute of the Chinese, People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Xiangmei Chen
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Nephrology, First Medical Center of Chinese People's, Liberation Army (PLA) General Hospital, Nephrology Institute of the Chinese, People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Ping Li
- Department of Nephrology, First Medical Center of Chinese People's, Liberation Army (PLA) General Hospital, Nephrology Institute of the Chinese, People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
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14
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Wei Y, Hu L, Liu G. Therapeutic improvements of nifedipine controlled-release tablets combined with sacubitril valsartan on patients with diabetic nephropathy complicated with hypertension. Int Immunopharmacol 2023; 123:110755. [PMID: 37549515 DOI: 10.1016/j.intimp.2023.110755] [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: 06/02/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
This study aimed to evaluate the efficacy of nifedipine controlled-release tablets combined with sacubitril valsartan in diabetic nephropathy (DN) patients with hypertension. One hundred and twelve DN patients with hypertension were enrolled. They were randomly divided into the control group (treated with nifedipine controlled-release tablets combined with valsartan) and the observation group (treated with nifedipine controlled-release tablets combined with sacubitril valsartan). Renal function, endothelial function and inflammatory response were examined. After three-months treatment, the levels of clinical indexes (glycosylated hemoglobin, fasting blood glucose, systolic and diastolic blood pressure), renal function indicators (urinary albumin excretion rate, blood urea nitrogen, serum creatinine and cystatin C), endothelial function indicators (microalbumin, angiotensin II, thrombomodulin and cartilage oligomeric matrix protein) and inflammatory response factors (interleukin-6 and tumor necrosis factor-α) in the observation group were significantly lower than those in the control group. Nifedipine controlled-release tablets combined with sacubitril valsartan could effectively alleviate the progression of DN combined with hypertension.
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Affiliation(s)
- Yinyu Wei
- Pharmacy Department, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou 061000, Hebei, China.
| | - Lele Hu
- Business Department, Cangzhou Central Blood Bank, No. 1, Yongji West Road, Cangzhou 061000, Hebei, China
| | - Guoying Liu
- Pharmacy Department, Botou Hospital, Yuhua West Road, Botou County, Cangzhou 062150, Hebei, China
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15
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Hayashi K. Targeting DNA Methylation in Podocytes to Overcome Chronic Kidney Disease. Keio J Med 2023; 72:67-76. [PMID: 37271519 DOI: 10.2302/kjm.2022-0017-ir] [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] [Indexed: 06/06/2023]
Abstract
The number of patients with chronic kidney disease (CKD) is on the rise worldwide, and there is urgent need for the development of effective plans against the increasing incidence of CKD. Podocytes, glomerular epithelial cells, are an integral part of the primary filtration unit of the kidney and form a slit membrane as a barrier to prevent proteinuria. The role of podocytes in the pathogenesis and progression of CKD is now recognized. Podocyte function depends on a specialized morphology with the arranged foot processes, which is directly related to their function. Epigenetic changes responsible for the regulation of gene expression related to podocyte morphology have been shown to be important in the pathogenesis of CKD. Although epigenetic mechanisms include DNA methylation, histone modifications, and RNA-based regulation, we have focused on DNA methylation changes because they are more stable than other epigenetic modifications. This review summarizes recent literature about the role of altered DNA methylation in the kidney, especially in glomerular podocytes, focusing on transcription factors and DNA damage responses that are closely associated with the formation of DNA methylation changes.
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Affiliation(s)
- Kaori Hayashi
- Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
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16
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Marassi M, Fadini GP. The cardio-renal-metabolic connection: a review of the evidence. Cardiovasc Diabetol 2023; 22:195. [PMID: 37525273 PMCID: PMC10391899 DOI: 10.1186/s12933-023-01937-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 07/22/2023] [Indexed: 08/02/2023] Open
Abstract
Type 2 diabetes (T2D), cardiovascular disease (CVD) and chronic kidney disease (CKD), are recognized among the most disruptive public health issues of the current century. A large body of evidence from epidemiological and clinical research supports the existence of a strong interconnection between these conditions, such that the unifying term cardio-metabolic-renal (CMR) disease has been defined. This coexistence has remarkable epidemiological, pathophysiologic, and prognostic implications. The mechanisms of hyperglycemia-induced damage to the cardio-renal system are well validated, as are those that tie cardiac and renal disease together. Yet, it remains controversial how and to what extent CVD and CKD can promote metabolic dysregulation. The aim of this review is to recapitulate the epidemiology of the CMR connections; to discuss the well-established, as well as the putative and emerging mechanisms implicated in the interplay among these three entities; and to provide a pathophysiological background for an integrated therapeutic intervention aiming at interrupting this vicious crosstalks.
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Affiliation(s)
- Marella Marassi
- Department of Medicine, Division of Metabolic Diseases, University of Padova, Via Giustiniani 2, 35128, Padua, Italy
| | - Gian Paolo Fadini
- Department of Medicine, Division of Metabolic Diseases, University of Padova, Via Giustiniani 2, 35128, Padua, Italy.
- Veneto Institute of Molecular Medicine, 35129, Padua, Italy.
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17
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Fan C, Gao Y, Sun Y. Integrated multiple-microarray analysis and mendelian randomization to identify novel targets involved in diabetic nephropathy. Front Endocrinol (Lausanne) 2023; 14:1191768. [PMID: 37492198 PMCID: PMC10363738 DOI: 10.3389/fendo.2023.1191768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/26/2023] [Indexed: 07/27/2023] Open
Abstract
Background Diabetic nephropathy (DN), which is the main cause of renal failure in end-stage renal disease, is becoming a common chronic renal disease worldwide. Mendelian randomization (MR) is a genetic tool that is widely used to minimize confounding and reverse causation when identifying the causal effects of complex traits. In this study, we conducted an integrated multiple microarray analysis and large-scale plasma proteome MR analysis to identify candidate biomarkers and evaluate the causal effects of prospective therapeutic targets in DN. Methods Five DN gene expression datasets were selected from the Gene Expression Omnibus. The robust rank aggregation (RRA) method was used to integrate differentially expressed genes (DEGs) of glomerular samples between patients with DN and controls, followed by functional enrichment analysis. Protein quantitative trait loci were incorporated from seven different proteomic genome-wide association studies, and genetic association data on DN were obtained from FinnGen (3676 cases and 283,456 controls) for two-sample MR analysis. External validation and clinical correlation were also conducted. Results A total of 82 DEGs (53 upregulated and 29 downregulated) were identified through RRA integrated analysis. The enriched Gene Ontology annotations and Kyoto Encyclopedia of Genes and Genomes pathways of the DEGs were significantly enriched in neutrophil degranulation, neutrophil activation, proteoglycan binding, collagen binding, secretory granule lumen, gluconeogenesis, tricarboxylic acid cycle, and pentose phosphate pathways. MR analysis revealed that the genetically predicted levels of MHC class I polypeptide-related sequence B (MICB), granzyme A (GZMA), cathepsin S (CTSS), chloride intracellular channel protein 5, and ficolin-1 (FCN1) were causally associated with DN risk. Expression validation and clinical correlation analysis showed that MICB, GZMA, FCN1, and insulin-like growth factor 1 may participate in the development of DN, and carbonic anhydrase 2 and lipoprotein lipase may play protective roles in patients with DN. Conclusion Our integrated analysis identified novel biomarkers, including MICB and GZMA, which may help further understand the complicated mechanisms of DN and identify new target pathways for intervention.
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Affiliation(s)
- Chenyu Fan
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, China
| | - Yuye Gao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery III, Peking University Cancer Hospital & Institute, Beijing, China
| | - Ying Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, China
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18
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Jin B, Liu J, Zhu Y, Lu J, Zhang Q, Liang Y, Shao Q, Jiang C. Kunxian capsule alleviates podocyte injury and proteinuria by inactivating β-catenin in db/db mice. Front Med (Lausanne) 2023; 10:1213191. [PMID: 37457567 PMCID: PMC10349331 DOI: 10.3389/fmed.2023.1213191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023] Open
Abstract
Background Diabetic kidney disease (DKD) remains the primary cause of end-stage renal disease (ESRD) globally, but treatment options are limited. Kunxian capsule (KXC) has been utilized for the treatment of autoimmune diseases and IgA nephropathy in China. However, its effect on DKD remains poorly investigated. Therefore, this study aimed to explore the protective effect of KXC in db/db mice and elucidate its underlying mechanism. Methods The renoprotective effects of KXC were assessed in a DKD mouse model using male BKS db/db diabetic mice. After 8 weeks of treatment, the urinary albumin-to-creatinine ratio (UACR), blood biochemical parameters, renal histopathological manifestation, and podocyte ultrastructural changes were evaluated. Additionally, the expression of podocyte epithelial-to-mesenchymal transition (EMT) markers [WT1, ZO-1, and collogen I (Col1a1)] was quantitatively analyzed. Furthermore, we explored the role of KXC in the β-catenin signaling pathway to elucidate the underlying mechanism of KXC's renoprotective effect. Results KXC treatment effectively reduced albuminuria and attenuated renal structural abnormalities in db/db mice. Additionally, KXC restored the protein and mRNA expression of WT1 and ZO-1 while suppressing the expression of Col1a1 in db/db mice, indicating its ability to alleviate podocyte EMT. Mechanistically, KXC exerted a significant suppressive effect on the activation of β-catenin signaling in diabetic kidneys. Conclusion KXC has the potential to protect podocytes during DKD by alleviating podocyte EMT through inactivating β-catenin signaling.
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Pan Y, Zhang Y, Li J, Zhang Z, He Y, Zhao Q, Yang H, Zhou P. A proteoglycan isolated from Ganoderma lucidum attenuates diabetic kidney disease by inhibiting oxidative stress-induced renal fibrosis both in vitro and in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2023; 310:116405. [PMID: 36966849 DOI: 10.1016/j.jep.2023.116405] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/03/2023] [Accepted: 03/18/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ganoderma lucidum (G. lucidum) was regarded as "miraculous herb" by the Chinese and recorded detailly in the "Shen Nong Ben Cao Jing" as a tonic to improve health and prolong life. A proteoglycan (namely, FYGL) was extracted from Ganoderma lucidum, which was a water-soluble hyperbranched proteoglycan, and was found to be able to protect pancreatic tissue against oxidative stress damage. AIM OF THE STUDY Diabetic kidney disease (DKD) is a complication of diabetes, but the effective treatment is still lack. Chronic hyperglycemia in diabetic patients induce the accumulation of ROS, which injure the renal tissue and lead to the renal dysfunction. In this work, the efficacy and target mechanics of FYGL on diabetic renal function were investigated. MATERIALS AND METHODS In the present study, the mechanism of the reno-protection of FYGL was analyzed on diabetic db/db mice and rat glomerular mesangial cells (HBZY-1) induced by high glucose (HG) with palmitate (PA) (HG/PA). In vitro, the levels of reactive oxygen species (ROS), malondialdehyde (MDA) and superoxide dismutase (SOD) were evaluated by commercial kits. the expressions of NOX1 and NOX4, phosphorylation of MAPK and NF-κB, and pro-fibrotic proteins were measured by Western blot. In vivo, diabetic db/db mice were gavaged with FYGL for 8 weeks, body weight and fasting blood glucose (FBG) were tested weekly. On 8th week, the serum, urine and renal tissue were collected for glucose tolerance test (OGTT), redox indicator (SOD, CAT, GSH and MDA), lipid metabolism (TC, TG, LDL and HDL), blood urea nitrogen (BUN), serum creatinine (Scr), uric acid (UA), 8-oxo-deoxyguanosine (8-OHdG), and the changes of histopathology and expression of collagen IV and AGEs. RESULTS The results in vitro showed that FYGL significantly inhibited the HG/PA-induced HBZY-1 cells proliferation, ROS generation, MDA production, promoted SOD activity, and suppressed NOX1, NOX4, MAPK, NF-κB, and pro-fibrotic proteins expression. In addition, FYGL markedly alleviated blood glucose, antioxidant activity and lipid metabolism, improved renal functions, and relieved renal histopathological abnormalities, especially renal fibrosis. CONCLUSIONS The antioxidant activity of FYGL can reduce ROS caused by diabetes and protect renal from oxidative stress-induced dysfunction, thereby improving renal function. This study shows that FYGL has the potential to treat diabetic kidney disease.
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Affiliation(s)
- Yanna Pan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, PR China.
| | - Ying Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, PR China
| | - Jiaqi Li
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, PR China
| | - Zeng Zhang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, PR China
| | - Yanming He
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, PR China
| | - Qingjie Zhao
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China.
| | - Hongjie Yang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, PR China.
| | - Ping Zhou
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, PR China.
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Pereira PG, Alves LL, Ciambarella BT, Rabelo K, Nascimento ALR, Moraes ACN, Bernardi A, Guimarães FV, Carvalho GM, da Silva JFR, de Carvalho JJ. Capybara Oil Improves Renal Pathophysiology and Inflammation in Obese Mice. Nutrients 2023; 15:2925. [PMID: 37447251 DOI: 10.3390/nu15132925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 07/15/2023] Open
Abstract
Obesity is an inflammatory disease associated with secondary diseases such as kidney disease, which can cause lipotoxicity, inflammation and loss of organ function. Polyunsaturated fatty acids act in the production of lipid mediators and have anti-inflammatory characteristics. In this work, the objective was to evaluate renal histopathology in obese mice and the effects of treatment with capybara oil (CO) (5000 mg/kg/day for 4 weeks). Parameters such as body mass, lipid profile, systolic blood pressure, urinary creatinine and protein excretion, structure and ultrastructure of the renal cortex, fibrosis, tissue inflammation and oxidative stress were analyzed. CO treatment in obese mice showed improvement in the lipid profile and reduction in systolic blood pressure levels, in addition to beneficial remodeling of the renal cortex. Our data demonstrated that CO decreased inflammation, oxidative stress and renal fibrosis, as evidenced by quantifying the expression of TNF-α, IL-10, CAT, SOD, α-SMA and TGF-β. Although treatment with CO did not show improvement in renal function, ultrastructural analysis showed that the treatment was effective in restoring podocytes and pedicels, with restructuring of the glomerular filtration barrier. These results demonstrate, for the first time, that treatment with CO is effective in reducing kidney damage, being considered a promising treatment for obesity.
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Affiliation(s)
- Priscila G Pereira
- Ultrastructure and Tissue Biology Laboratory, Institute of Biology, Rio de Janeiro State University, Boulevard Vinte e Oito de Setembro, 87 Fundos, 3° Andar Vila Isabel, Rio de Janeiro 20551-030, RJ, Brazil
| | - Luciana L Alves
- Ultrastructure and Tissue Biology Laboratory, Institute of Biology, Rio de Janeiro State University, Boulevard Vinte e Oito de Setembro, 87 Fundos, 3° Andar Vila Isabel, Rio de Janeiro 20551-030, RJ, Brazil
| | - Bianca T Ciambarella
- Ultrastructure and Tissue Biology Laboratory, Institute of Biology, Rio de Janeiro State University, Boulevard Vinte e Oito de Setembro, 87 Fundos, 3° Andar Vila Isabel, Rio de Janeiro 20551-030, RJ, Brazil
| | - Kíssila Rabelo
- Ultrastructure and Tissue Biology Laboratory, Institute of Biology, Rio de Janeiro State University, Boulevard Vinte e Oito de Setembro, 87 Fundos, 3° Andar Vila Isabel, Rio de Janeiro 20551-030, RJ, Brazil
| | - Ana Lúcia R Nascimento
- Ultrastructure and Tissue Biology Laboratory, Institute of Biology, Rio de Janeiro State University, Boulevard Vinte e Oito de Setembro, 87 Fundos, 3° Andar Vila Isabel, Rio de Janeiro 20551-030, RJ, Brazil
| | - Alan Cesar N Moraes
- Electron Microscopy Laboratory of Biology Institute, University of Federal Fluminense, Rio de Janeiro 21040-900, RJ, Brazil
| | - Andressa Bernardi
- Inflammation Laboratory, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil
| | | | - Gabriela M Carvalho
- Ultrastructure and Tissue Biology Laboratory, Institute of Biology, Rio de Janeiro State University, Boulevard Vinte e Oito de Setembro, 87 Fundos, 3° Andar Vila Isabel, Rio de Janeiro 20551-030, RJ, Brazil
| | - Jemima F R da Silva
- Ultrastructure and Tissue Biology Laboratory, Institute of Biology, Rio de Janeiro State University, Boulevard Vinte e Oito de Setembro, 87 Fundos, 3° Andar Vila Isabel, Rio de Janeiro 20551-030, RJ, Brazil
| | - Jorge J de Carvalho
- Ultrastructure and Tissue Biology Laboratory, Institute of Biology, Rio de Janeiro State University, Boulevard Vinte e Oito de Setembro, 87 Fundos, 3° Andar Vila Isabel, Rio de Janeiro 20551-030, RJ, Brazil
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21
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Kang YH, Park SH, Sim YE, Oh MS, Suh HW, Lee JY, Lim SS. Highly water-soluble diacetyl chrysin ameliorates diabetes-associated renal fibrosis and retinal microvascular abnormality in db/db mice. Nutr Res Pract 2023; 17:421-437. [PMID: 37266111 PMCID: PMC10232202 DOI: 10.4162/nrp.2023.17.3.421] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/16/2022] [Accepted: 09/20/2022] [Indexed: 06/03/2023] Open
Abstract
BACKGROUND/OBJECTIVES Chronic or intermittent hyperglycemia is associated with the development of diabetic complications. Oxidative stress and inflammation can be altered by hyperglycemia in diverse tissues, including kidneys and eyes, and play a pivotal role in diabetic complications. Our previous studies showed that the water-insoluble 5,7-dihydroxyflvone chrysin effectively combats diabetic damages incurred in diabetic kidneys and retinas. The current study employed the newly-synthesized 5.7-di-O-acetylchrysin, having higher solubility than chrysin, to compare the effects on diabetes-associated renal fibrosis and abnormal retinal neovascularization. MATERIALS/METHODS In the in vivo study, db/db mice as animal models of type 2 diabetes were orally administrated 10 mg/kg BW diacetylchrysin, daily for 10 weeks. RESULTS Unlike chrysin, oral administration of 10 mg/kg diacetylchrysin did not lower the blood glucose level and 24 h urine volume in db/db mice. Nevertheless, the urinary albumin excretion was markedly reduced. The administration of diacetylchrysin also diminished the deposition of collagen fibers in diabetic glomeruli and tubules by suppressing the induction of connective tissue growth factor and collagen IV in diabetic kidneys. Supplying diacetylchrysin enhanced the membrane type-1 matrix metalloproteinase (MMP) expression reduced in diabetic kidneys, while the tissue inhibitor of MMP-2 induction was attenuated in diacetylchrysin-challenged diabetic kidneys. In addition, supplementing diacetylchrysin to diabetic mice ameliorated renal injury due to glomerulosclerosis and tubular interstitial fibrosis. Furthermore, the reduced retinal inductions of Zonula occludens-1 and vascular endothelial cadherin in db/db mice were elevated in the retinal tissues of diacetylchrysin-treated animals. Oral administration of diacetylchrysin curtailed the induction of vascular endothelial growth factor (VEGF) and VEGF receptor 2 in db/db mice, ultimately retarding diabetes-associated retinal neovascularization. Additionally, the retinal formation of acellular capillaries with leaky vessels was reduced in diacetylchrysin-treated db/db mice. CONCLUSION Diacetylchrysin may act as a potent pro-health agent for treating renal fibrosis-associated diabetic nephropathy and retinal neovascularization-associated diabetic retinopathy.
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Affiliation(s)
- Young-Hee Kang
- Department of Food and Nutrition and Nutrition and Korean Institute of Nutrition, Hallym University, Chuncheon 24252, Korea
| | - Sin-Hye Park
- Department of Food and Nutrition and Nutrition and Korean Institute of Nutrition, Hallym University, Chuncheon 24252, Korea
| | - Young Eun Sim
- Department of Food and Nutrition and Nutrition and Korean Institute of Nutrition, Hallym University, Chuncheon 24252, Korea
| | - Moon-Sik Oh
- Department of Food and Nutrition and Nutrition and Korean Institute of Nutrition, Hallym University, Chuncheon 24252, Korea
| | - Hong Won Suh
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon 24252, Korea
- FrontBio Inc., Chuncheon 24232, Korea
| | - Jae-Yong Lee
- FrontBio Inc., Chuncheon 24232, Korea
- Department of Biochemistry, College of Medicine, Hallym University, Chuncheon 24252, Korea
| | - Soon Sung Lim
- Department of Food and Nutrition and Nutrition and Korean Institute of Nutrition, Hallym University, Chuncheon 24252, Korea
- FrontBio Inc., Chuncheon 24232, Korea
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22
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Juin SK, Ouseph R, Gondim DD, Jala VR, Sen U. Diabetic Nephropathy and Gaseous Modulators. Antioxidants (Basel) 2023; 12:antiox12051088. [PMID: 37237955 DOI: 10.3390/antiox12051088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetic nephropathy (DN) remains the leading cause of vascular morbidity and mortality in diabetes patients. Despite the progress in understanding the diabetic disease process and advanced management of nephropathy, a number of patients still progress to end-stage renal disease (ESRD). The underlying mechanism still needs to be clarified. Gaseous signaling molecules, so-called gasotransmitters, such as nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S), have been shown to play an essential role in the development, progression, and ramification of DN depending on their availability and physiological actions. Although the studies on gasotransmitter regulations of DN are still emerging, the evidence revealed an aberrant level of gasotransmitters in patients with diabetes. In studies, different gasotransmitter donors have been implicated in ameliorating diabetic renal dysfunction. In this perspective, we summarized an overview of the recent advances in the physiological relevance of the gaseous molecules and their multifaceted interaction with other potential factors, such as extracellular matrix (ECM), in the severity modulation of DN. Moreover, the perspective of the present review highlights the possible therapeutic interventions of gasotransmitters in ameliorating this dreaded disease.
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Affiliation(s)
- Subir Kumar Juin
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Microbiology & Immunology, Brown Cancer Center, Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Rosemary Ouseph
- Division of Nephrology & Hypertension, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Dibson Dibe Gondim
- Department of Pathology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Venkatakrishna Rao Jala
- Department of Microbiology & Immunology, Brown Cancer Center, Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Utpal Sen
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
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23
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Mohandes S, Doke T, Hu H, Mukhi D, Dhillon P, Susztak K. Molecular pathways that drive diabetic kidney disease. J Clin Invest 2023; 133:165654. [PMID: 36787250 PMCID: PMC9927939 DOI: 10.1172/jci165654] [Citation(s) in RCA: 79] [Impact Index Per Article: 79.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Kidney disease is a major driver of mortality among patients with diabetes and diabetic kidney disease (DKD) is responsible for close to half of all chronic kidney disease cases. DKD usually develops in a genetically susceptible individual as a result of poor metabolic (glycemic) control. Molecular and genetic studies indicate the key role of podocytes and endothelial cells in driving albuminuria and early kidney disease in diabetes. Proximal tubule changes show a strong association with the glomerular filtration rate. Hyperglycemia represents a key cellular stress in the kidney by altering cellular metabolism in endothelial cells and podocytes and by imposing an excess workload requiring energy and oxygen for proximal tubule cells. Changes in metabolism induce early adaptive cellular hypertrophy and reorganization of the actin cytoskeleton. Later, mitochondrial defects contribute to increased oxidative stress and activation of inflammatory pathways, causing progressive kidney function decline and fibrosis. Blockade of the renin-angiotensin system or the sodium-glucose cotransporter is associated with cellular protection and slowing kidney function decline. Newly identified molecular pathways could provide the basis for the development of much-needed novel therapeutics.
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Affiliation(s)
- Samer Mohandes
- Renal, Electrolyte, and Hypertension Division, Department of Medicine;,Institute for Diabetes, Obesity, and Metabolism;,Department of Genetics; and,Kidney Innovation Center; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Tomohito Doke
- Renal, Electrolyte, and Hypertension Division, Department of Medicine;,Institute for Diabetes, Obesity, and Metabolism;,Department of Genetics; and,Kidney Innovation Center; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Hailong Hu
- Renal, Electrolyte, and Hypertension Division, Department of Medicine;,Institute for Diabetes, Obesity, and Metabolism;,Department of Genetics; and,Kidney Innovation Center; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Dhanunjay Mukhi
- Renal, Electrolyte, and Hypertension Division, Department of Medicine;,Institute for Diabetes, Obesity, and Metabolism;,Department of Genetics; and,Kidney Innovation Center; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Poonam Dhillon
- Renal, Electrolyte, and Hypertension Division, Department of Medicine;,Institute for Diabetes, Obesity, and Metabolism;,Department of Genetics; and,Kidney Innovation Center; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Katalin Susztak
- Renal, Electrolyte, and Hypertension Division, Department of Medicine;,Institute for Diabetes, Obesity, and Metabolism;,Department of Genetics; and,Kidney Innovation Center; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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24
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Sun L, Ding M, Chen F, Zhu D, Xie X. Breviscapine alleviates podocyte injury by inhibiting NF-κB/NLRP3-mediated pyroptosis in diabetic nephropathy. PeerJ 2023; 11:e14826. [PMID: 36815984 PMCID: PMC9933739 DOI: 10.7717/peerj.14826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/09/2023] [Indexed: 02/16/2023] Open
Abstract
Podocyte injury is a critical factor in the pathogenesis of diabeticnephropathy (DN). Emerging evidence has demonstrated that breviscapine (Bre) exerts a renoprotective effect on diabetic rats. However, the effects of Bre on regulating podocyte injury under high glucose (HG) conditions remain unclear. In this study, an experimental mouse model of DN was induced by intraperitoneal injections of streptozotocin (STZ) in vivo. The effects of Bre on podocyte injury were assessed using cell counting kit-8 (CCK-8) assay, TdT-mediated dUTPnick-endlabelling (TUNEL) staining, quantitative real-time PCR (qRT‒PCR) and western blot analysis. We found that renal function was significantly decreased in diabetic mice, and this effect was blocked by Bre treatment. Bre effectively increased podocyte viability and inhibited HG-induced cell apoptosis. Furthermore, Bre ameliorated HG-induced podocyte injury, as evidenced by decreased α-smooth muscle actin (α-SMA) expression and increased podocin and synaptopodin expression. Mechanistically, Bre inhibited HG-induced nuclear factorkappaB (NF-κB) signalling activation and subsequently decreased NLR family pyrin domain containing 3 (NLRP3) inflammasome activation, resulting in a decrease in pyroptosis. Pharmacological inhibition of NLRP3 decreased HG-induced podocyte injury, whereas the NLRP3 agonist abrogated the effects of Bre on inhibiting podocyte injury. In summary, these results demonstrate that Bre alleviates HG-induced podocyte injury and improves renal function in diabetic mice, at least in part by inhibiting NF-κB/NLRP3-mediated pyroptosis.
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25
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Mukhi D, Kolligundla LP, Maruvada S, Nishad R, Pasupulati AK. Growth hormone induces transforming growth factor-β1 in podocytes: Implications in podocytopathy and proteinuria. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2023; 1870:119391. [PMID: 36400249 DOI: 10.1016/j.bbamcr.2022.119391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 10/31/2022] [Accepted: 11/06/2022] [Indexed: 11/17/2022]
Abstract
Pituitary growth hormone (GH) is essential for growth, metabolism, and renal function. Overactive GH signaling is associated with impaired kidney function. Glomerular podocytes, a key kidney cell type, play an indispensable role in the renal filtration and express GH receptors (GHR), suggesting the direct action of GH on these cells. However, the precise mechanism and the downstream signaling events by which GH leads to diabetic nephropathy remain to be elucidated. Here we performed proteome analysis of the condition media from human podocytes and confirmed that GH-induces TGF-β1. Inhibition of GH/GHR stimulated-JAK2 signaling abrogates GH-induced TGF-β1 secretion. Mice administered with GH showed glomerular manifestations concomitant with proteinuria. Pharmacological inhibition of TGF-βR1 in mice prevented GH-induced TGF-β dependent SMAD signaling and proteinuria. Conditional deletion of GHR in podocytes protected mice from streptozotocin-induced diabetic nephropathy. GH and TGF-β1 signaling components expression was elevated in the kidneys of human diabetic nephropathy patients. Our study identifies that GH induces TGF-β1 in podocytes, contributing to diabetic nephropathy.
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Affiliation(s)
- Dhanunjay Mukhi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Lakshmi P Kolligundla
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Saikrishna Maruvada
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Rajkishor Nishad
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Anil K Pasupulati
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, India.
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26
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Barreiro K, Lay AC, Leparc G, Tran VDT, Rosler M, Dayalan L, Burdet F, Ibberson M, Coward RJM, Huber TB, Krämer BK, Delic D, Holthofer H. An in vitro approach to understand contribution of kidney cells to human urinary extracellular vesicles. J Extracell Vesicles 2023; 12:e12304. [PMID: 36785873 PMCID: PMC9925963 DOI: 10.1002/jev2.12304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/26/2022] [Accepted: 01/05/2023] [Indexed: 02/15/2023] Open
Abstract
Extracellular vesicles (EV) are membranous particles secreted by all cells and found in body fluids. Established EV contents include a variety of RNA species, proteins, lipids and metabolites that are considered to reflect the physiological status of their parental cells. However, to date, little is known about cell-type enriched EV cargo in complex EV mixtures, especially in urine. To test whether EV secretion from distinct human kidney cells in culture differ and can recapitulate findings in normal urine, we comprehensively analysed EV components, (particularly miRNAs, long RNAs and protein) from conditionally immortalised human kidney cell lines (podocyte, glomerular endothelial, mesangial and proximal tubular cells) and compared to EV secreted in human urine. EV from cell culture media derived from immortalised kidney cells were isolated by hydrostatic filtration dialysis (HFD) and characterised by electron microscopy (EM), nanoparticle tracking analysis (NTA) and Western blotting (WB). RNA was isolated from EV and subjected to miRNA and RNA sequencing and proteins were profiled by tandem mass tag proteomics. Representative sets of EV miRNAs, RNAs and proteins were detected in each cell type and compared to human urinary EV isolates (uEV), EV cargo database, kidney biopsy bulk RNA sequencing and proteomics, and single-cell transcriptomics. This revealed that a high proportion of the in vitro EV signatures were also found in in vivo datasets. Thus, highlighting the robustness of our in vitro model and showing that this approach enables the dissection of cell type specific EV cargo in biofluids and the potential identification of cell-type specific EV biomarkers of kidney disease.
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Affiliation(s)
- Karina Barreiro
- Institute for Molecular Medicine Finland (FIMM)University of HelsinkiHelsinkiFinland
| | - Abigail C. Lay
- Bristol RenalBristol Medical SchoolFaculty of Health SciencesUniversity of BristolBristolUK
| | - German Leparc
- Boehringer Ingelheim Pharma GmbH & Co. KG BiberachBiberachGermany
| | - Van Du T. Tran
- Vital‐IT GroupSIB Swiss Institute of BioinformaticsLausanneSwitzerland
| | - Marcel Rosler
- Boehringer Ingelheim Pharma GmbH & Co. KG BiberachBiberachGermany
| | - Lusyan Dayalan
- Bristol RenalBristol Medical SchoolFaculty of Health SciencesUniversity of BristolBristolUK
| | - Frederic Burdet
- Vital‐IT GroupSIB Swiss Institute of BioinformaticsLausanneSwitzerland
| | - Mark Ibberson
- Vital‐IT GroupSIB Swiss Institute of BioinformaticsLausanneSwitzerland
| | - Richard J. M. Coward
- Bristol RenalBristol Medical SchoolFaculty of Health SciencesUniversity of BristolBristolUK
| | - Tobias B. Huber
- III Department of MedicineUniversity Medical Center Hamburg‐EppendorfHamburgGermany
| | - Bernhard K. Krämer
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology)University Medical Centre MannheimUniversity of HeidelbergMannheimGermany
| | - Denis Delic
- Boehringer Ingelheim Pharma GmbH & Co. KG BiberachBiberachGermany
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology)University Medical Centre MannheimUniversity of HeidelbergMannheimGermany
| | - Harry Holthofer
- Institute for Molecular Medicine Finland (FIMM)University of HelsinkiHelsinkiFinland
- III Department of MedicineUniversity Medical Center Hamburg‐EppendorfHamburgGermany
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Wang E, Wang H, Chakrabarti S. Endothelial-to-mesenchymal transition: An underappreciated mediator of diabetic complications. Front Endocrinol (Lausanne) 2023; 14:1050540. [PMID: 36777351 PMCID: PMC9911675 DOI: 10.3389/fendo.2023.1050540] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 01/17/2023] [Indexed: 01/28/2023] Open
Abstract
Diabetes and its complications represent a great burden on the global healthcare system. Diabetic complications are fundamentally diseases of the vasculature, with endothelial cells being the centerpiece of early hyperglycemia-induced changes. Endothelial-to-mesenchymal transition is a tightly regulated process that results in endothelial cells losing endothelial characteristics and developing mesenchymal traits. Although endothelial-to-mesenchymal transition has been found to occur within most of the major complications of diabetes, it has not been a major focus of study or a common target in the treatment or prevention of diabetic complications. In this review we summarize the importance of endothelial-to-mesenchymal transition in each major diabetic complication, examine specific mechanisms at play, and highlight potential mechanisms to prevent endothelial-to-mesenchymal transition in each of the major chronic complications of diabetes.
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28
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Gu YZ, Vlasakova K, Miller G, Gatto NT, Ciaccio PJ, Kuruvilla S, Besteman EG, Smith R, Reynolds SJ, Amin RP, Glaab WE, Wollenberg G, Lebron J, Sistare FD. Early-Onset albuminuria and Associated Renal Pathology in Leucine-Rich Repeat Kinase 2 Knockout Rats. Toxicol Pathol 2023; 51:15-26. [PMID: 37078689 DOI: 10.1177/01926233231162809] [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] [Indexed: 04/21/2023]
Abstract
Activating mutations of the leucine-rich repeat kinase 2 (LRRK2) gene are associated with Parkinson disease (PD), prompting development of LRRK2 inhibitors as potential treatment for PD. However, kidney safety concerns have surfaced from LRRK2 knockout (KO) mice and rats and from repeat-dose studies in rodents administered LRRK2 inhibitors. To support drug development of this therapeutic target, we conducted a study of 26 weeks' duration in 2-month-old wild-type and LRRK2 KO Long-Evans Hooded rats to systematically examine the performance of urinary safety biomarkers and to characterize the nature of the morphological changes in the kidneys by light microscopy and by ultrastructural evaluation. Our data reveal the time course of early-onset albuminuria at 3 and 4 months in LRRK2 KO female and male rats, respectively. The increases in urine albumin were not accompanied by concurrent increases in serum creatinine, blood urea nitrogen, or renal safety biomarkers such as kidney injury molecule 1 or clusterin, although morphological alterations in both glomerular and tubular structure were identified by light and transmission electron microscopy at 8 months of age. Diet optimization with controlled food intake attenuated the progression of albuminuria and associated renal changes.
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Affiliation(s)
- Yi-Zhong Gu
- Merck & Co., Inc., West Point, Pennsylvania, USA
| | | | - Glen Miller
- Merck & Co., Inc., West Point, Pennsylvania, USA
| | | | | | | | | | - Roger Smith
- Merck & Co., Inc., West Point, Pennsylvania, USA
| | | | | | | | | | - Jose Lebron
- Merck & Co., Inc., West Point, Pennsylvania, USA
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Wu Z, Li D, Tian D, Liu X, Wu Z. Aspirin mediates protection from diabetic kidney disease by inducing ferroptosis inhibition. PLoS One 2022; 17:e0279010. [PMID: 36516169 PMCID: PMC9749971 DOI: 10.1371/journal.pone.0279010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 11/29/2022] [Indexed: 12/15/2022] Open
Abstract
Diabetic kidney disease (DKD) progression can be predicted by abnormalities in the tubulointerstitial lining, and their treatment may be useful for preventing the disease. DKD is a progressive disease that contributes to renal tubular cell death, but its underlying mechanisms remain unclear. Ferroptosis is a novel term linked to lipid hydroperoxidation, and it plays an important role in the pathogenesis of DKD. Overexpression of cyclooxygenase-2 (COX2), an enzyme of the proximal tubule, causes cellular redox damage in DKD. It remains unknown whether COX2 exacerbates tubular damage by accelerating ferroptosis in the kidneys of diabetic mice. HK-2 cells cultured in high glucose exhibited ferroptosis, which was inhibited by ferroptosis inhibitors. Additionally, alterations in the sensors of ferroptosis metabolism, such as glutathione peroxidase 4 (GPX4) activity, lipid hydroperoxidation, reduced glutathione (GSH) levels and changes in mitochondrial morphology, were observed in high glucose-cultured HK-2 cells. Diabetic mice manifested tubular injury and deranged renal physiological indices, which were mitigated by ferrostatin-1 (Fer-1). Importantly, these perturbations were ameliorated by downregulating COX2. In addition, the increased COX2 was observed to be elevated in the daibetic kindney. To explore the relevance of COX2 to ferroptosis, HK-2 cells that knocked down from COX2 exhibited decreased ferroptosis sensitivity under high glucose conditions. In RSL-3-treated HK-2 cells, ferroptosis was improved by downregulating COX2 by treatment with aspirin, which was confirmed in high glucose-cultured HK-2 cells. Furthermore, the ferroptosis changes were also suppressed by decreasing COX2 in diabetic mice treated with aspirin, which retarded DKD progression. In conclusion, our results demonstrated that ferroptosis in renal tubular cells contributes to DKD development and that diabetes-related ferroptosis was inhibited through the downregulation of COX2 by aspirin, thus retarding the progression of DKD. Our findings support a renoprotective mechanism by which aspirin inhibits COX2 activation, identify COX2 as a potential target of ferroptosis, and establish that ferroptosis in renal tubular cells is an integral process in the pathogenesis of DKD regulated by COX2 expression profiles.
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Affiliation(s)
- Ziyu Wu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
- Department of Geriatric Medicine, Fujian Provincial Hospital, Fujian Provincial Center for Geriatrics, Fujian Provincial Key Laboratory of Geriatric Disease, The Provincial Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Dan Li
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Dingyuan Tian
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Xuejun Liu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
- * E-mail: (XL); (ZW)
| | - Zhongming Wu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- * E-mail: (XL); (ZW)
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30
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Momenah M. Resveratrol Ameliorates Kidney Injury and Fibrosis Secondary to Diabetes in Association with Inflammation and Nitrosative Stress Inhibition in Rats. INT J PHARMACOL 2022. [DOI: 10.3923/ijp.2022.1576.1582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Heyman SN, Raz I, Dwyer JP, Weinberg Sibony R, Lewis JB, Abassi Z. Diabetic Proteinuria Revisited: Updated Physiologic Perspectives. Cells 2022; 11:cells11182917. [PMID: 36139492 PMCID: PMC9496872 DOI: 10.3390/cells11182917] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Albuminuria, a hallmark of diabetic nephropathy, reflects not only injury and dysfunction of the filtration apparatus, but is also affected by altered glomerular hemodynamics and hyperfiltration, as well as by the inability of renal tubular cells to fully retrieve filtered albumin. Albuminuria further plays a role in the progression of diabetic nephropathy, and the suppression of glomerular albumin leak is a key factor in its prevention. Although microalbuminuria is a classic manifestation of diabetic nephropathy, often progressing to macroalbuminuria or overt proteinuria over time, it does not always precede renal function loss in diabetes. The various components leading to diabetic albuminuria and their associations are herein reviewed, and the physiologic rationale and efficacy of therapeutic interventions that reduce glomerular hyperfiltration and proteinuria are discussed. With these perspectives, we propose that these measures should be initiated early, before microalbuminuria develops, as substantial renal injury may already be present in the absence of proteinuria. We further advocate that the inhibition of the renin–angiotensin axis or of sodium–glucose co-transport likely permits the administration of a normal recommended or even high-protein diet, highly desirable for sarcopenic diabetic patients.
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Affiliation(s)
- Samuel N. Heyman
- Department of Medicine, Hadassah Hebrew University Hospital, Mt. Scopus, Jerusalem 9765422, Israel
- Division of Geriatrics, Herzog Hospital, Jerusalem 9765422, Israel
- Correspondence:
| | - Itamar Raz
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 9765422, Israel
- Diabetes Unit, Department of Endocrinology and Metabolism, Hadassah Medical Center, Jerusalem 9124001, Israel
| | - Jamie P. Dwyer
- Clinical and Translational Science Institute, University of Utah Health, Salt Lake City, UT 84112, USA
| | | | - Julia B. Lewis
- Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Departments of Medicine and Nephrology, Vanderbilt University Medical Center, Nashville, TN 37011, USA
| | - Zaid Abassi
- Department of Physiology and Biophysics, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3200003, Israel
- Department of Laboratory Medicine, Rambam Health Care Campus, Haifa 3109601, Israel
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Kim T, Kwak Y, Lee JY, Shin H, Kim JS, Yang JW, Eom M. Pathological validation of the Japanese Renal Pathology Society classification and challenges in predicting renal prognosis in patients with diabetic nephropathy. Kidney Res Clin Pract 2022; 41:545-555. [PMID: 36239058 PMCID: PMC9576461 DOI: 10.23876/j.krcp.22.123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 06/26/2024] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) accounts for approximately half of all cases of chronic kidney disease (CKD) and end-stage kidney disease worldwide. The Renal Pathology Society (RPS) classification has been used to predict the renal prognosis in DN. In 2018, the Japanese Renal Pathology Society (JRPS) proposed a comprehensive classification system that included pathological changes in the kidney. The clinical significance of the JRPS classification system was comparatively evaluated in the present study. METHODS A total of 93 cases diagnosed with DN from 2009 to 2019 were enrolled. JRPS scores (J-scores) were calculated by scoring the pathological factors in the JRPS classification system and comparing them with clinical parameters. RESULTS Most pathological factors constituting the J-score were significantly correlated with clinical factors. Laminated nodules were inversely correlated with estimated glomerular filtration rate. After adjusting for age, sex, body mass index, hemoglobin A1c, diabetes duration, and hypertension, CKD stage was significantly correlated with JRPS grade, nodular lesions, and exudative lesions in the multivariate logistic regression analysis. However, receiver operating characteristic curve analysis revealed that the J-score (area under the curve [AUC] = 0.639) had lower clinical significance than the traditional RPS classification system (AUC = 0.675). CONCLUSION The JRPS classification can more comprehensively reflect renal changes than the RPS classification and is correlated with renal survival. When creating a new pathological classification, arteriolar hyalinosis should not be included, whereas laminated nodules should be included.
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Affiliation(s)
- Taeyeong Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yooujin Kwak
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Jun Young Lee
- Department of Nephrology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Hanwul Shin
- Department of Nephrology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Jae Seok Kim
- Department of Nephrology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Jae Won Yang
- Department of Nephrology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Minseob Eom
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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Zhang Z, Sun Y, Xue J, Jin D, Li X, Zhao D, Lian F, Qi W, Tong X. The critical role of dysregulated autophagy in the progression of diabetic kidney disease. Front Pharmacol 2022; 13:977410. [PMID: 36091814 PMCID: PMC9453227 DOI: 10.3389/fphar.2022.977410] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/04/2022] [Indexed: 11/30/2022] Open
Abstract
Diabetic kidney disease (DKD) is one of the major public health problems in society today. It is a renal complication caused by diabetes mellitus with predominantly microangiopathy and is a major cause of end-stage renal disease (ESRD). Autophagy is a metabolic pathway for the intracellular degradation of cytoplasmic products and damaged organelles and plays a vital role in maintaining homeostasis and function of the renal cells. The dysregulation of autophagy in the hyperglycaemic state of diabetes mellitus can lead to the progression of DKD, and the activation or restoration of autophagy through drugs is beneficial to the recovery of renal function. This review summarizes the physiological process of autophagy, illustrates the close link between DKD and autophagy, and discusses the effects of drugs on autophagy and the signaling pathways involved from the perspective of podocytes, renal tubular epithelial cells, and mesangial cells, in the hope that this will be useful for clinical treatment.
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Affiliation(s)
- Ziwei Zhang
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Yuting Sun
- Department of Endocrinology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jiaojiao Xue
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - De Jin
- Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Xiangyan Li
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Biomacromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Daqing Zhao
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Biomacromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Fengmei Lian
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Fengmei Lian, ; Wenxiu Qi, ; Xiaolin Tong,
| | - Wenxiu Qi
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Biomacromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
- *Correspondence: Fengmei Lian, ; Wenxiu Qi, ; Xiaolin Tong,
| | - Xiaolin Tong
- Institute of Metabolic Diseases, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Fengmei Lian, ; Wenxiu Qi, ; Xiaolin Tong,
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Dawood AF, Maarouf A, Alzamil NM, Momenah MA, Shati AA, Bayoumy NM, Kamar SS, Haidara MA, ShamsEldeen AM, Yassin HZ, Hewett PW, Al-Ani B. Metformin Is Associated with the Inhibition of Renal Artery AT1R/ET-1/iNOS Axis in a Rat Model of Diabetic Nephropathy with Suppression of Inflammation and Oxidative Stress and Kidney Injury. Biomedicines 2022; 10:biomedicines10071644. [PMID: 35884947 PMCID: PMC9313150 DOI: 10.3390/biomedicines10071644] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/27/2022] [Accepted: 07/06/2022] [Indexed: 02/06/2023] Open
Abstract
Diabetes is the most common cause of end-stage renal disease, also called kidney failure. The link between the renal artery receptor angiotensin II type I (AT1R) and endothelin-1 (ET-1), involved in vasoconstriction, oxidative stress, inflammation and kidney fibrosis (collagen) in diabetes-induced nephropathy with and without metformin incorporation has not been previously studied. Diabetes (type 2) was induced in rats and another group started metformin (200 mg/kg) treatment 2 weeks prior to the induction of diabetes and continued on metformin until being culled at week 12. Diabetes significantly (p < 0.0001) modulated renal artery tissue levels of AT1R, ET-1, inducible nitric oxide synthase (iNOS), endothelial NOS (eNOS), and the advanced glycation end products that were protected by metformin. In addition, diabetes-induced inflammation, oxidative stress, hypertension, ketonuria, mesangial matrix expansion, and kidney collagen were significantly reduced by metformin. A significant correlation between the AT1R/ET-1/iNOS axis, inflammation, fibrosis and glycemia was observed. Thus, diabetes is associated with the augmentation of the renal artery AT1R/ET-1/iNOS axis as well as renal injury and hypertension while being protected by metformin.
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Affiliation(s)
- Amal F. Dawood
- Department of Basic Medical Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
- Department of Physiology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo 12613, Egypt; (M.A.H.); (A.M.S.); (H.Z.Y.)
| | - Amro Maarouf
- Department of Clinical Biochemistry, Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham B9 5SS, UK;
| | - Norah M. Alzamil
- Department of Clinical Science, Family Medicine, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Maha A. Momenah
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Ayed A. Shati
- Department of Child Health, College of Medicine, King Khalid University, Abha 62529, Saudi Arabia;
| | - Nervana M. Bayoumy
- Department of Physiology, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia;
| | - Samaa S. Kamar
- Department of Histology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo 12613, Egypt;
| | - Mohamed A. Haidara
- Department of Physiology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo 12613, Egypt; (M.A.H.); (A.M.S.); (H.Z.Y.)
| | - Asmaa M. ShamsEldeen
- Department of Physiology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo 12613, Egypt; (M.A.H.); (A.M.S.); (H.Z.Y.)
| | - Hanaa Z. Yassin
- Department of Physiology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo 12613, Egypt; (M.A.H.); (A.M.S.); (H.Z.Y.)
| | - Peter W. Hewett
- Institute of Cardiovascular Sciences, College of Medicine and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK;
| | - Bahjat Al-Ani
- Department of Physiology, College of Medicine, King Khalid University, Abha 62529, Saudi Arabia
- Correspondence:
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Cao SL, Luo HY, Gao YC, Lan XM, Liu SY, Li B, Bao L, E. J, Ma D, Zhang GQ, Yang LR, Bao X, Zheng YL. TFP5-Mediated CDK5 Activity Inhibition Improves Diabetic Nephropathy via NGF/Sirt1 Regulating Axis. Front Cell Dev Biol 2022; 10:829067. [PMID: 35874807 PMCID: PMC9301001 DOI: 10.3389/fcell.2022.829067] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 05/27/2022] [Indexed: 12/01/2022] Open
Abstract
Diabetic nephropathy (DN) is one of the leading causes of chronic kidney disease (CKD), during which hyperglycemia is composed of the major force for the deterioration to end-stage renal disease (ESRD). However, the underlying mechanism triggering the effect of hyperglycemia on DN is not very clear and the clinically available drug for hyperglycemia-induced DN is in need of urgent development. Here, we found that high glucose (HG) increased the activity of cyclin-dependent kinase 5 (CDK5) dependent on P35/25 and which upregulated the oxidative stress and apoptosis of mouse podocytes (MPC-5). TFP5, a 25-amino acid peptide inhibiting CDK5 activity, decreased the secretion of inflammation cytokines in serum and kidney, and effectively protected the kidney function in db/db mouse from hyperglycemia-induced kidney injuries. In addition, TFP5 treatment decreased HG-induced oxidative stress and cell apoptosis in MPC-5 cells and kidney tissue of db/db mouse. The principal component analysis (PCA) of RNA-seq data showed that MPC-5 cell cultured under HG, was well discriminated from that under low glucose (LG) conditions, indicating the profound influence of HG on the properties of podocytes. Furthermore, we found that HG significantly decreased the level of NGF and Sirt1, both of which correlated with CDK5 activity. Furthermore, knockdown of NGF was correlated with the decreased expression of Sirt1 while NGF overexpression leads to upregulated Sirt1 and decreased oxidative stress and apoptosis in MPC-5 cells, indicating the positive regulation between NGF and Sirt1 in podocytes. Finally, we found that K252a, an inhibitor of NGF treatment could undermine the protective role of TFP5 on hyperglycemia-induced DN in db/db mouse model. In conclusion, the CDK5-NGF/Sirt1 regulating axis may be the novel pathway to prevent DN progression and TFP5 may be a promising compound to improved hyperglycemia induced DN.
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Affiliation(s)
- Shi-Lu Cao
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- The Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
| | - Hong-Yan Luo
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- The Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
| | - Yong-Cai Gao
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
| | - Xiao-Mei Lan
- Department of Geriatrics, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Shun-Yao Liu
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- The Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
| | - Bo Li
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Li Bao
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- The Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
| | - Jing E.
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- Department of Nephrology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Danna Ma
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- Department of Nephrology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Guo-Qing Zhang
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
| | - Li-Rong Yang
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
| | - Xi Bao
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- The Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
| | - Ya-Li Zheng
- Department of Nephrology, Ningxia Medical University Affiliated People’s Hospital of Autonomous Region of Yinchuan, Yinchuan, China
- The Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
- *Correspondence: Ya-Li Zheng,
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Peroxisome Proliferator-Activated Receptor Gene Knockout Promotes Podocyte Injury in Diabetic Mice. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9018379. [PMID: 35813229 PMCID: PMC9262558 DOI: 10.1155/2022/9018379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/14/2022] [Indexed: 11/17/2022]
Abstract
Objective. To investigate the effects of peroxisome proliferator-activated receptor (PPARγ) expression on renal podocyte in diabetic mice by conditionally knockout mouse PPARγ gene. Methods. Wild-type C57BL mice and PPARγ gene knockout mice were used as research objects to establish the diabetic mouse model, which was divided into normal control group (NC group), normal glucose PPARγ gene knockout group (NK group), diabetic wild-type group (DM group), and diabetic PPARγ gene knockout group (DK group), with 8 mice in each group. After 16 weeks, the mice were sacrificed for renal tissue collection. Morphological changes of renal tissue were observed by HE and Masson staining, and ultrastructure of renal tissue was observed by transmission electron microscope. Protein expressions of PPARγ, podocin, nephrin, collagen IV, and fibronectin (FN) in renal tissues were detected by immunohistochemistry and Western blot, and mRNA changes of PPARγ, podocin, and nephrin in renal tissues were detected by qRT-PCR. Results. Compared with the NC group, the protein and mRNA expressions of PPARγ, podocin, and nephrin decreased in the kidney tissue of mice in the DM group, while the protein expressions of collagen IV and FN increased. The expression of various proteins in kidney tissues of the DK group was consistent with that of the DM group, and the difference was more obvious. The expression of PPARγ protein and mRNA decreased in the NK group, while the expression of podocin, nephrin protein and mRNA, collagen IV, and FN protein showed no significant difference. Conclusion. In diabetic renal tissue, the loss of PPARγ can aggravate podocellular damage and thus promote the occurrence of diabetic renal fibrosis. Increasing the expression of PPARγ may effectively relieve renal podocyte impairment in diabetic patients, which can be used for the treatment of diabetic nephropathy.
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Peng X, Wang X, Shao X, Wang Y, Feng S, Wang C, Ye C, Chen J, Jiang H. Serum Metabolomics Benefits Discrimination Kidney Disease Development in Type 2 Diabetes Patients. Front Med (Lausanne) 2022; 9:819311. [PMID: 35615098 PMCID: PMC9126316 DOI: 10.3389/fmed.2022.819311] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background Diabetic kidney disease (DKD) is the primary cause of end-stage renal disease, raising a considerable burden worldwide. Recognizing novel biomarkers by metabolomics can shed light on new biochemical insight to benefit DKD diagnostics and therapeutics. We hypothesized that serum metabolites can serve as biomarkers in the progression of DKD. Methods A cross-sectional study of 1,043 plasma metabolites by untargeted LC/MS among 89 participants identified associations between proteinuria severity and metabolites difference. Pathway analysis from differently expressed metabolites was used to determine perturbed metabolism pathways. The results were replicated in an independent, cross-sectional cohort of 83 individuals. Correlation and prediction values were used to examine the association between plasma metabolites level and proteinuria amount. Results Diabetes, and diabetic kidney disease with different ranges of proteinuria have shown different metabolites patterns. Cysteine and methionine metabolism pathway, and Taurine and hypotaurine metabolism pathway were distinguishable in the existence of DKD in DC (diabetes controls without kidney disease), and DKD with different ranges of proteinuria. Two interesting tetrapeptides (Asn-Met-Cys-Ser and Asn-Cys-Pro-Pro) circulating levels were elevated with the DKD proteinuria progression. Conclusions These findings underscore that serum metabolomics provide us biochemical perspectives to identify some clinically relevant physiopathologic biomarkers of DKD progression.
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Affiliation(s)
- Xiaofeng Peng
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Xiaoyi Wang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
- Department of Nephrology, The First Affiliated Hospital of Huzhou Teachers College, The First People's Hospital of Huzhou, Huzhou, China
| | - Xue Shao
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Yucheng Wang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Shi Feng
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Cuili Wang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Cunqi Ye
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jianghua Chen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Hong Jiang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- Institute of Nephropathy, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
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Protective Effect and Possible Mechanisms of Artemisinin and Its Derivatives for Diabetic Nephropathy: A Systematic Review and Meta-Analysis in Animal Models. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5401760. [PMID: 35528521 PMCID: PMC9073547 DOI: 10.1155/2022/5401760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/04/2022] [Indexed: 11/25/2022]
Abstract
Background Artemisinin and its derivatives have potential antidiabetic effects. There is no evaluation of reported studies in the literature on the treatment of diabetic nephropathy (DN), one of the commonest diabetic microangiopathies, with artemisinins. Here, we aimed to evaluate preclinical evidence for the efficacy and possible mechanisms of artemisinins in reducing diabetic renal injury. Methods We conducted an electronic literature search in fourteen databases from their inception to November 2021. All animal studies assessing the efficacy and safety of artemisinins in DN were included, regardless of publication or language. Overall, 178 articles were screened according to predefined inclusion and exclusion criteria. Finally, 18 eligible articles were included in this systematic review. The SYstematic Review Center for Laboratory animal Experimentation (SYRCLE) risk-of-bias tool was used to assess the risk of bias in the included studies. The primary outcomes were kidney function, proteinuria, and renal pathology. Secondary endpoints included changes in fasting plasma glucose (FPG) levels, body weight, and relevant mechanisms. Results Of the 18 included articles involving 418 animal models of DN, 1, 2, 6, and 9 used dihydroartemisinin, artemether, artesunate, and artemisinin, respectively. Overall, artemisinins reduced indicators of renal function, including blood urea nitrogen (P < 0.00001), serum creatinine (P < 0.00001), and kidney index (P = 0.0001) compared with control group treatment. Measurements of proteinuria (P < 0.00001), microalbuminuria (P < 0.05), and protein excretion (P = 0.0002) suggested that treatment with artemisinins reduced protein loss in animals with DN. Artemisinins may lower blood glucose levels (P = 0.01), but there is a risk of weight gain (P < 0.00001). Possible mechanisms of action of artemisinins include delaying renal fibrosis, reducing oxidative stress, and exerting antiapoptotic and anti-inflammatory effects. Conclusion Available evidence suggests that artemisinins may be protective against renal injury secondary to diabetes in preclinical studies; however, high-quality and long-term trials are needed to reliably determine the balance of benefits and harms.
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Chen C, Liu D. Establishment of Zebrafish Models for Diabetes Mellitus and Its Microvascular Complications. J Vasc Res 2022; 59:251-260. [PMID: 35378543 DOI: 10.1159/000522471] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/31/2022] [Indexed: 11/19/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disease known to cause several microvascular complications, including diabetic retinopathy, diabetic nephropathy, and diabetic neuropathy. Hyperglycemia plays a key role in inducing diabetic microvascular complications. A cohort of diabetic animal models has been established to study diabetes-related vascular diseases. However, the zebrafish model offers unique advantages in this field. The tiny size and huge offspring numbers of zebrafish make it amenable to perform large-scale analysis or screening. The easily accessible strategies for gene manipulation with morpholino or CRISPR/Cas9 and chemical/drug treatment through microinjection or skin absorption allow establishing the zebrafish DM models by a variety of means. In addition, the transparency of zebrafish embryos makes it accessible to perform in vivo high-resolution imaging of the vascular system. In this review, we focus on the strategies to establish diabetic or hyperglycemic models with zebrafish and the achievements and disadvantages of using zebrafish as a model to study diabetic microvascular complications.
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Affiliation(s)
- Changsheng Chen
- School of Life Sciences, Nantong Laboratory of Development and Diseases, Medical College, Nantong University, Nantong, China
| | - Dong Liu
- School of Life Sciences, Nantong Laboratory of Development and Diseases, Medical College, Nantong University, Nantong, China.,Co-Innovation Center of Neuroregeneration, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, China
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He C, Wang D, Wang R, Huang Y, Huang X, Shen S, Lv J, Wu M. Epigallocatechin Gallate Induces the Demethylation of Actinin Alpha 4 to Inhibit Diabetic Nephropathy Renal Fibrosis via the NF-KB Signaling Pathway In Vitro. Dose Response 2022; 20:15593258221105704. [PMID: 35706474 PMCID: PMC9189538 DOI: 10.1177/15593258221105704] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 05/10/2022] [Accepted: 05/17/2022] [Indexed: 11/15/2022]
Abstract
Actinin alpha 4 (ACTN4) is expressed in the kidney podocytes. ACTN4 gene methylation in patients with diabetic nephropathy (DN) remains high. Underlying mechanism of epigallocatechin-3-gallate (EGCG) inducing ACTN4 demethylation, and its inhibitory effect on DN renal fibrosis remains unclear.
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Affiliation(s)
- Chunling He
- Department of Endocrinology and Genetic Metabolism, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Dong Wang
- Department of Hepatobiliary Surgery, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Ruoling Wang
- Department of Biochemistry and Molecular Biology, Wannan Medical College, Wuhu, China
| | - Yongli Huang
- Department of Biochemistry and Molecular Biology, Wannan Medical College, Wuhu, China
| | - Xin Huang
- Department of Biochemistry and Molecular Biology, Wannan Medical College, Wuhu, China
| | - ShuMin Shen
- Department of Biochemistry and Molecular Biology, Wannan Medical College, Wuhu, China
| | - Jun Lv
- Department of Biochemistry and Molecular Biology, Wannan Medical College, Wuhu, China
| | - Mingcai Wu
- Department of Biochemistry and Molecular Biology, Wannan Medical College, Wuhu, China
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41
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Zhang M, Yang L, Zhu M, Yang B, Yang Y, Jia X, Feng L. Moutan Cortex polysaccharide ameliorates diabetic kidney disease via modulating gut microbiota dynamically in rats. Int J Biol Macromol 2022; 206:849-860. [PMID: 35307460 DOI: 10.1016/j.ijbiomac.2022.03.077] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/01/2022] [Accepted: 03/12/2022] [Indexed: 12/11/2022]
Abstract
Growing evidence suggests that polysaccharides from traditional Chinese medicine positively affect diabetic kidney disease (DKD) mainly through modulating gut microbiota. Previously, we demonstrated that supplementation with the polysaccharide from Moutan Cortex (MC-Pa) alleviated DKD in rats. The study intends to investigate the dynamic modulation of MC-Pa on DKD from the gut microbiota perspective. The DKD rat model was induced by a high-fat and high-sugar diet combined with streptozotocin (STZ). The rats were then supplemented with MC-Pa (80 and 160 mg/kg BW) for 12 weeks. The results showed that MC-Pa administration relieved hyperglycemia and renal injury in DKD rats. MC-Pa also reconstructed gut microbiota, improved intestinal barrier function, reduced serum proinflammatory mediators, and elevated the short-chain fatty acid (SCFAs) contents. In addition, the dynamics of Lactobacillus and Muribaculaceae_unclassified were in a dose- and time-dependent manner. Spearman correlation analysis found that a cluster of gut microbiota phyla and genera were significantly associated with DKD-related indicators. These results demonstrated that MC-Pa positively affected DKD rats by modulating gut microbiota dynamically and had potential as a prebiotic.
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Affiliation(s)
- Meng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, P.R. China
| | - Licheng Yang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, P.R. China
| | - Maomao Zhu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, P.R. China
| | - Bing Yang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, P.R. China
| | - Yanjun Yang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, P.R. China
| | - Xiaobin Jia
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, P.R. China.
| | - Liang Feng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, P.R. China.
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Shimada K, Kanasaki K, Kato M, Ogura Y, Takagaki Y, Monno I, Hirai T, Kitada M, Koya D. Adenosine/A1R signaling pathway did not play dominant roles on the influence of SGLT2 inhibitor in the kidney of BSA‐overloaded STZ‐induced diabetic mice. J Diabetes Investig 2022; 13:955-964. [PMID: 35098679 PMCID: PMC9153834 DOI: 10.1111/jdi.13760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/21/2022] [Accepted: 01/26/2022] [Indexed: 11/28/2022] Open
Abstract
Aims/Introduction Sodium–glucose cotransporter 2 inhibitors (SGLT2i) have been shown to display excellent renoprotective effects in diabetic kidney disease with macroalbuminuria/proteinuria. Regarding the renoprotective mechanism of SGLT2i, a sophisticated hypothesis was made by explaining the suppression of glomerular hypertension/hyperfiltration through the adenosine/adenosine type 1 receptor (A1R) signaling‐mediated restoration of the tubuloglomerular feedback mechanism; however, how such A1R signaling is relevant for renoprotection by SGLT2i in diabetic kidney disease with proteinuria has not been elucidated. Materials and Methods Streptozotocin‐induced diabetic CD‐1 mice were injected with bovine serum albumin (BSA) and treated with SGLT2i in the presence/absence of A1R inhibitor administration. Results We found that the influences of SGLT2i are essentially independent of the activation of A1R signaling in the kidney of BSA‐overloaded streptozotocin‐induced diabetic mice. BSA‐overloaded diabetic mice showed the trend of kidney damage with higher glomerular filtration rate (GFR) and the significant induction of fibrogenic genes, such as transforming growth factor‐β2 and collagen type III. SGLT2i TA‐1887 suppressed diabetes‐induced GFR in BSA‐overloaded diabetic mice was associated with the significant suppression of transforming growth factor‐β2 and collagen type III; A1R‐specific inhibitor 8‐cyclopentyl‐1,3‐dipropylxanthine did not cancel the effects of TA‐1887 on either GFR or associated gene levels. Both TA‐1887 and 8‐cyclopentyl‐1,3‐dipropylxanthine‐treated BSA‐overloaded diabetic mice showed suppressed glycated hemoglobin levels associated with the increased food intake. When analyzing the association among histological evaluation, GFR and potential fibrogenic gene levels, each group of mice showed distinct correlation patterns. Conclusions A1R signaling activation was not the dominant mechanism on the influence of SGLT2i in the kidney of BSA‐overloaded diabetic mice.
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Affiliation(s)
- Keiji Shimada
- Department of Diabetology and Endocrinology Kanazawa Medical University
| | - Keizo Kanasaki
- Department of Diabetology and Endocrinology Kanazawa Medical University
- Division of Anticipatory Molecular Food Science and Technology Medical Research Institute Kanazawa Medical University Uchinada, Ishikawa Japan
- Internal Medical 1 Shimane University Faculty of Medicine Izumo, Shimane Japan
| | - Makoto Kato
- Ikuyaku. Integrated Value Development Division Mitsubishi Tanabe Pharma Corporation Tokyo Japan
- Naka Kinen Clinic Ibaraki Japan
- Department of Cardiology International Medical Center Saitama Medical University Saitama Japan
| | - Yoshio Ogura
- Department of Diabetology and Endocrinology Kanazawa Medical University
| | - Yuta Takagaki
- Department of Diabetology and Endocrinology Kanazawa Medical University
| | - Itaru Monno
- Department of Diabetology and Endocrinology Kanazawa Medical University
| | - Taro Hirai
- Department of Diabetology and Endocrinology Kanazawa Medical University
| | - Munehiro Kitada
- Department of Diabetology and Endocrinology Kanazawa Medical University
- Division of Anticipatory Molecular Food Science and Technology Medical Research Institute Kanazawa Medical University Uchinada, Ishikawa Japan
| | - Daisuke Koya
- Department of Diabetology and Endocrinology Kanazawa Medical University
- Division of Anticipatory Molecular Food Science and Technology Medical Research Institute Kanazawa Medical University Uchinada, Ishikawa Japan
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Cao Y, Chen Z, Hu J, Feng J, Zhu Z, Fan Y, Lin Q, Ding G. Mfn2 Regulates High Glucose-Induced MAMs Dysfunction and Apoptosis in Podocytes via PERK Pathway. Front Cell Dev Biol 2022; 9:769213. [PMID: 34988075 PMCID: PMC8721005 DOI: 10.3389/fcell.2021.769213] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/29/2021] [Indexed: 01/11/2023] Open
Abstract
The endoplasmic reticulum (ER) stress and mitochondrial dysfunction in high glucose (HG)-induced podocyte injury have been demonstrated to the progression of diabetic kidney disease (DKD). However, the pathological mechanisms remain equivocal. Mitofusin2 (Mfn2) was initially identified as a dynamin-like protein involved in fusing the outer mitochondrial membrane (OMM). More recently, Mfn2 has been reported to be located at the ER membranes that contact OMM. Mitochondria-associated ER membranes (MAMs) is the intercellular membrane subdomain, which connects the mitochondria and ER through a proteinaceous tether. Here, we observed the suppression of Mfn2 expression in the glomeruli and glomerular podocytes of patients with DKD. Streptozotocin (STZ)-induced diabetic rats exhibited abnormal mitochondrial morphology and MAMs reduction in podocytes, accompanied by decreased expression of Mfn2 and activation of all three unfolded protein response (UPR) pathways (IRE1, ATF6, and PERK). The HG-induced mitochondrial dysfunction, MAMs reduction, and increased apoptosis in vitro were accompanied by the downregulation of Mfn2 and activation of the PERK pathway. Mfn2 physically interacts with PERK, and HG promotes a decrease in Mfn2-PERK interaction. In addition, Mfn2-silenced podocytes showed mitochondrial dysfunction, MAMs reduction, activation of PERK pathway, and increased apoptosis. Conversely, all these effects of HG stimulation were alleviated significantly by Mfn2 overexpression. Furthermore, the inhibition of PERK phosphorylation protected mitochondrial functions but did not affect the expression of Mfn2 in HG-treated podocytes. Therefore, this study confirmed that Mfn2 regulates the morphology and functions of MAMs and mitochondria, and exerts anti-apoptotic effects on podocytes by inhibiting the PERK pathway. Hence, the Mfn2-PERK signaling pathway may be a new therapeutic target for preventing podocyte injury in DKD.
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Affiliation(s)
- Yun Cao
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Nephrology and Urology Research Institute of Wuhan University, Wuhan, China
| | - Zhaowei Chen
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Nephrology and Urology Research Institute of Wuhan University, Wuhan, China
| | - Jijia Hu
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Nephrology and Urology Research Institute of Wuhan University, Wuhan, China
| | - Jun Feng
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Nephrology and Urology Research Institute of Wuhan University, Wuhan, China
| | - Zijing Zhu
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Nephrology and Urology Research Institute of Wuhan University, Wuhan, China
| | - Yanqin Fan
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Nephrology and Urology Research Institute of Wuhan University, Wuhan, China
| | - Qiaoxuan Lin
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Nephrology and Urology Research Institute of Wuhan University, Wuhan, China
| | - Guohua Ding
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Nephrology and Urology Research Institute of Wuhan University, Wuhan, China
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Pathologic Diabetic Nephropathy in Autopsied Diabetic Cases With Normoalbuminuria From a Japanese Community-Based Study. Kidney Int Rep 2021; 6:3035-3044. [PMID: 34901572 PMCID: PMC8640559 DOI: 10.1016/j.ekir.2021.09.007] [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: 06/18/2021] [Revised: 08/24/2021] [Accepted: 09/13/2021] [Indexed: 11/24/2022] Open
Abstract
Introduction Albuminuria is a clinical hallmark of diabetic nephropathy (DN). Nevertheless, it is controversial whether pathologic DN lesions exist in individuals with diabetes with normoalbuminuria. We investigated the association between albuminuria levels and the frequency of DN lesions in autopsied diabetic cases from a Japanese community. Methods A total of 106 autopsied cases with diabetes mellitus (mean age = 76 years, 43.4% male) who died within 6 years after their last health examination were included in the study. Urinary albumin-creatinine ratio (UACR) levels were divided into the following 3 groups: <30.0, 30.0 to 299.9, and ≥300.0 mg/g. The kidney specimens were evaluated with light microscopy. Glomerular DN lesions were categorized into class 0 to I, IIa, IIb, and III glomerular DN lesions according to the criteria of the Renal Pathology Society. A Cochran-Armitage test was used to evaluate the association between the UACR levels and the presence of class IIa or higher glomerular DN lesions. Results The frequency of class IIa or higher glomerular DN lesions was 63.2% (IIa, 36.8%; IIb, 3.8%; and III, 22.6%) among overall cases. The frequencies increased significantly with higher UACR levels (P for trend = 0.02). The frequency of class IIa or higher glomerular DN lesions was 51.2%, even in individuals with UACR < 30 mg/g. Conclusion This study revealed a positive association of the UACR levels with the presence of class IIa or higher glomerular DN lesions, which were also frequently found even in the normal range of UACR levels, among autopsied diabetic cases from a Japanese community.
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Liu J, Zhang Y, Sheng H, Liang C, Liu H, Moran Guerrero JA, Lu Z, Mao W, Dai Z, Liu X, Zhang L. Hyperoside Suppresses Renal Inflammation by Regulating Macrophage Polarization in Mice With Type 2 Diabetes Mellitus. Front Immunol 2021; 12:733808. [PMID: 34925317 PMCID: PMC8678409 DOI: 10.3389/fimmu.2021.733808] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 11/04/2021] [Indexed: 12/29/2022] Open
Abstract
Accumulating evidence reveals that both inflammation and lymphocyte dysfunction play a vital role in the development of diabetic nephropathy (DN). Hyperoside (HPS) or quercetin-3-O-galactoside is an active flavonoid glycoside mainly found in the Chinese herbal medicine Tu-Si-Zi. Although HPS has a variety of pharmacological effects, including anti-oxidative and anti-apoptotic activities as well as podocyte-protective effects, its underlying anti-inflammatory mechanisms remain unclear. Herein, we investigated the therapeutic effects of HPS on murine DN and the potential mechanisms responsible for its efficacy. We used C57BLKS/6J Lepdb/db mice and a high glucose (HG)-induced bone marrow-derived macrophage (BMDM) polarization system to investigate the potentially protective effects of HPS on DN. Our results showed that HPS markedly reduced diabetes-induced albuminuria and glomerular mesangial matrix expansion, accompanied with a significant improvement of fasting blood glucose level, hyperlipidaemia and body weight. Mechanistically, pretreatment with HPS effectively regulated macrophage polarization by shifting proinflammatory M1 macrophages (F4/80+CD11b+CD86+) to anti-inflammatory M2 ones (F4/80+CD11b+CD206+) in vivo and in bone marrow-derived macrophages (BMDMs) in vitro, resulting in the inhibition of renal proinflammatory macrophage infiltration and the reduction in expression of monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor (TNF-α) and inducible nitric oxide synthase (iNOS) while increasing expression of anti-inflammatory cytokine Arg-1 and CD163/CD206 surface molecules. Unexpectedly, pretreatment with HPS suppressed CD4+ T cell proliferation in a coculture model of IL-4-induced M2 macrophages and splenic CD4+ T cells while promoting their differentiation into CD4+IL-4+ Th2 and CD4+Foxp3+ Treg cells. Taken together, we demonstrate that HPS ameliorates murine DN via promoting macrophage polarization from an M1 to M2 phenotype and CD4+ T cell differentiation into Th2 and Treg populations. Our findings may be implicated for the treatment of DN in clinic.
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Affiliation(s)
- Jialing Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Nephrology Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Yanmei Zhang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Nephrology Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hongqin Sheng
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Nephrology Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chunling Liang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Section of Immunology and Joint Immunology Program, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Huazhen Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Section of Immunology and Joint Immunology Program, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | | | - Zhaoyu Lu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Nephrology Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Mao
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Nephrology Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhenhua Dai
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Section of Immunology and Joint Immunology Program, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Diseases, Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Zhenhua Dai, ; Xusheng Liu, ; Lei Zhang,
| | - Xusheng Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Nephrology Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Zhenhua Dai, ; Xusheng Liu, ; Lei Zhang,
| | - Lei Zhang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Nephrology Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Section of Immunology and Joint Immunology Program, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
- *Correspondence: Zhenhua Dai, ; Xusheng Liu, ; Lei Zhang,
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Muramatsu H, Akimoto N, Hashimoto M, Sugibayashi K, Katakura M. Influence of Polyunsaturated Fatty Acid Intake on Kidney Functions of Rats with Chronic Renal Failure. Mar Drugs 2021; 19:md19120692. [PMID: 34940691 PMCID: PMC8706431 DOI: 10.3390/md19120692] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 11/16/2022] Open
Abstract
Arachidonic acid (ARA), an omega-6 (ω-6) polyunsaturated fatty acid (PUFA), is involved in the development and maintenance of renal functions, whereas docosahexaenoic acid (DHA) is an omega-3 (ω-3) PUFA that has anti-inflammatory effects and attenuates nephropathy. However, their effects on the progression of chronic kidney disease (CKD) remain unknown. The aim of this study was to assess the effects of feeding ARA, DHA, and ARA and DHA-containing diets on rats with 5/6 nephrectomized kidneys. Urine and feces were collected every 4 weeks, and the kidneys were collected at 16 weeks after surgery. Urinary albumin (U-ALB) excretion increased gradually with nephrectomy, but the U-ALB excretion was attenuated by feeding the rats with an ARA + DHA-containing diet. Reactive oxygen species (ROS) levels in the kidneys were lower in the ARA + DHA group than in the other groups. At 4 weeks after surgery, the lipid peroxide (LPO) levels in the plasma of the ARA + DHA groups decreased significantly after surgery compared to the control CKD group, but this did not happen at 16 weeks post-surgery. There was a significant negative correlation between LPO levels in the plasma at 4 weeks and creatinine clearance, and a positive correlation with urinary albumin levels. These results suggest that the combination of ARA and DHA inhibit the progress of early stage CKD.
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Affiliation(s)
- Hiroki Muramatsu
- Laboratory of Nutritional Physiology, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado 350-0295, Saitama, Japan; (H.M.); (N.A.); (K.S.)
| | - Naoe Akimoto
- Laboratory of Nutritional Physiology, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado 350-0295, Saitama, Japan; (H.M.); (N.A.); (K.S.)
| | - Michio Hashimoto
- Faculty of Medicine, Shimane University, Izumo 693-8501, Shimane, Japan;
| | - Kenji Sugibayashi
- Laboratory of Nutritional Physiology, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado 350-0295, Saitama, Japan; (H.M.); (N.A.); (K.S.)
| | - Masanori Katakura
- Laboratory of Nutritional Physiology, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado 350-0295, Saitama, Japan; (H.M.); (N.A.); (K.S.)
- Correspondence:
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Kong L, Andrikopoulos S, MacIsaac RJ, Mackay LK, Nikolic-Paterson DJ, Torkamani N, Zafari N, Marin ECS, Ekinci EI. Role of the adaptive immune system in diabetic kidney disease. J Diabetes Investig 2021; 13:213-226. [PMID: 34845863 PMCID: PMC8847140 DOI: 10.1111/jdi.13725] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/19/2021] [Accepted: 11/28/2021] [Indexed: 12/14/2022] Open
Abstract
Diabetic kidney disease (DKD) is a highly prevalent complication of diabetes and the leading cause of end-stage kidney disease. Inflammation is recognized as an important driver of progression of DKD. Activation of the immune response promotes a pro-inflammatory milieu and subsequently renal fibrosis, and a progressive loss of renal function. Although the role of the innate immune system in diabetic renal disease has been well characterized, the potential contribution of the adaptive immune system remains poorly defined. Emerging evidence in experimental models of DKD indicates an increase in the number of T cells in the circulation and in the kidney cortex, that in turn triggers secretion of inflammatory mediators such as interferon-γ and tumor necrosis factor-α, and activation of cells in innate immune response. In human studies, the number of T cells residing in the interstitial region of the kidney correlates with the degree of albuminuria in people with type 2 diabetes. Here, we review the role of the adaptive immune system, and associated cytokines, in the development of DKD. Furthermore, the potential therapeutic benefits of targeting the adaptive immune system as a means of preventing the progression of DKD are discussed.
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Affiliation(s)
- Lingyun Kong
- Department of Medicine, Austin Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Sofianos Andrikopoulos
- Department of Medicine, Austin Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Richard J MacIsaac
- Department of Medicine, Austin Health, University of Melbourne, Melbourne, Victoria, Australia.,Department of Endocrinology & Diabetes, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - David J Nikolic-Paterson
- Department of Nephrology, Monash Medical Center and Monash University Center for Inflammatory Diseases, Melbourne, Victoria, Australia
| | - Niloufar Torkamani
- Department of Medicine, Austin Health, University of Melbourne, Melbourne, Victoria, Australia.,Endocrine Center of Excellence, Austin Health, Melbourne, Victoria, Australia
| | - Neda Zafari
- Department of Medicine, Austin Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Evelyn C S Marin
- College of Sport and Exercise Science, Victoria University, Melbourne, Victoria, Australia
| | - Elif I Ekinci
- Department of Medicine, Austin Health, University of Melbourne, Melbourne, Victoria, Australia.,Endocrine Center of Excellence, Austin Health, Melbourne, Victoria, Australia
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Debele GR, Hajure M, Wolde HF, Yenit MK. Incidence and Predictors of Chronic Kidney Disease among Diabetes Mellitus Patients: A Retrospective Follow-Up Study at a Tertiary Health-Care Setting of Ethiopia. Diabetes Metab Syndr Obes 2021; 14:4381-4390. [PMID: 34737594 PMCID: PMC8560326 DOI: 10.2147/dmso.s335572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/19/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Chronic kidney disease (CKD) is one of the most common microvascular complications of diabetes mellitus (DM) and it is a major health burden worldwide. Despite the increasing trend of microvascular complications in developing countries, there is limited evidence on predictors of CKD among diabetic patients in Ethiopia. Therefore, this study was aimed to assess the incidence and predictors of CKD among DM patients. METHODS A retrospective follow-up study was conducted among type 1 and type 2 DM patients in Southwest Ethiopia. A total of 437 newly-diagnosed diabetes patients were selected using a simple random sampling technique. Data were extracted from patients' medical records. Cox proportional hazard model was fitted and a 95% confidence interval was used to select significant variables. RESULTS Overall, 15.56% of patients developed CKD, with an incidence rate of 2.29 per 1,000 person-month (PM) (95% CI=1.79-2.93). Female sex (AHR=0.51, 95% CI=0.27-0.94) was found to be a protective factor of CKD, while positive proteinuria (AHR=2.85, 95% CI=1.48-5.55), having hypertension (HTN) (AHR=2.31, 95% CI=1.03-5.56), and high-density lipoprotein cholesterol (HDL-C) <40 mg/dL (AHR=3.19, 95% CI=1.73-5.98) were significant predictors of CKD. CONCLUSION CKD among DM patients continues to be a significant public health problem in health-care settings of Ethiopia. The current study found being female was protective, while positive proteinuria, HTN, and HDL-C <40 mg/dL were risk factors for CKD. We recommend health professionals to give more attention to DM patients with the identified risk factors.
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Affiliation(s)
- Gebiso Roba Debele
- Department of Public Health, College of Health Sciences, Mettu University, Mettu, Ethiopia
| | - Mohammedamin Hajure
- Department of Psychiatry, College of Health Sciences, Mettu University, Mettu, Ethiopia
| | - Haileab Fekadu Wolde
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Melaku Kindie Yenit
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Alomari G, Al-Trad B, Hamdan S, Aljabali AAA, Al Zoubi MS, Al-Batanyeh K, Qar J, Eaton GJ, Alkaraki AK, Alshaer W, Haifawi S, Jemon K, Chellappan DK, Dua K, Tambuwala MM. Alleviation of diabetic nephropathy by zinc oxide nanoparticles in streptozotocin-induced type 1 diabetes in rats. IET Nanobiotechnol 2021; 15:473-483. [PMID: 34694755 PMCID: PMC8675811 DOI: 10.1049/nbt2.12026] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 09/17/2020] [Accepted: 11/06/2020] [Indexed: 12/12/2022] Open
Abstract
This study examines the effect of nanoparticles with zinc oxides (ZnONPs) on diabetic nephropathy, which is the primary cause of mortality for diabetic patients with end‐stage renal disease. Diabetes in adult male rats was induced via intraperitoneal injection of streptozotocin. ZnONPs were intraperitoneally administered to diabetic rats daily for 7 weeks. Diabetes was associated with increases in blood glucose level, 24‐h urinary albumin excretion rate, glomerular basement membrane thickness, renal oxidative stress markers, and renal mRNA or protein expression of transforming growth factor‐β1, fibronectin, collagen‐IV, tumour necrosis factor‐α and vascular endothelial growth factor‐A. Moreover, the expression of nephrin and podocin, and the mRNA expression of matrix metalloproteinase‐9 were decreased in the diabetic group. These changes were not detected in the control group and were significantly prevented by ZnONP treatment. These results provide evidence that ZnONPs ameliorate the renal damage induced in a diabetic rat model of nephropathy through improving renal functionality; inhibiting renal fibrosis, oxidative stress, inflammation and abnormal angiogenesis; and delaying the development of podocyte injury. The present findings may help design the clinical application of ZnONPs for protection against the development of diabetic nephropathy.
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Affiliation(s)
- Ghada Alomari
- Department of Bioscience, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia.,Department of Biological Sciences, Yarmouk University, Irbid, Jordan
| | - Bahaa Al-Trad
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
| | - Salehhuddin Hamdan
- Department of Bioscience, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Alaa A A Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Yarmouk University, Irbid, Jordan
| | - Mazhar Salim Al Zoubi
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid, Jordan
| | | | - Janti Qar
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
| | - Gregory J Eaton
- Department of Biological Sciences, College of Science and Mathematics, Rowan University, Glassboro, New Jersey, USA
| | | | - Walhan Alshaer
- University of Jordan, Cell Therapy Center, Amman, Jordan
| | - Saja Haifawi
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
| | - Khairunadwa Jemon
- Department of Bioscience, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Kamal Dua
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, Australia
| | - Murtaza M Tambuwala
- School of Pharmacy and Pharmaceutical Science, Ulster University, Coleraine, UK
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Sugita E, Hayashi K, Hishikawa A, Itoh H. Epigenetic Alterations in Podocytes in Diabetic Nephropathy. Front Pharmacol 2021; 12:759299. [PMID: 34630127 PMCID: PMC8497789 DOI: 10.3389/fphar.2021.759299] [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: 08/16/2021] [Accepted: 09/13/2021] [Indexed: 01/19/2023] Open
Abstract
Recently, epigenetic alterations have been shown to be involved in the pathogenesis of diabetes and its complications. Kidney podocytes, which are glomerular epithelial cells, are important cells that form a slit membrane—a barrier for proteinuria. Podocytes are terminally differentiated cells without cell division or replenishment abilities. Therefore, podocyte damage is suggested to be one of the key factors determining renal prognosis. Recent studies, including ours, suggest that epigenetic changes in podocytes are associated with chronic kidney disease, including diabetic nephropathy. Furthermore, the association between DNA damage repair and epigenetic changes in diabetic podocytes has been demonstrated. Detection of podocyte DNA damage and epigenetic changes using human samples, such as kidney biopsy and urine-derived cells, may be a promising strategy for estimating kidney damage and renal prognoses in patients with diabetes. Targeting epigenetic podocyte changes and associated DNA damage may become a novel therapeutic strategy for preventing progression to end-stage renal disease (ESRD) and provide a possible prognostic marker in diabetic nephropathy. This review summarizes recent advances regarding epigenetic changes, especially DNA methylation, in podocytes in diabetic nephropathy and addresses detection of these alterations in human samples. Additionally, we focused on DNA damage, which is increased under high-glucose conditions and associated with the generation of epigenetic changes in podocytes. Furthermore, epigenetic memory in diabetes is discussed. Understanding the role of epigenetic changes in podocytes in diabetic nephropathy may be of great importance considering the increasing diabetic nephropathy patient population in an aging society.
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Affiliation(s)
- Erina Sugita
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Kaori Hayashi
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Akihito Hishikawa
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Hiroshi Itoh
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
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