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Zhang R, Zhang X, Zhu X, Li T, Li Y, Zhang P, Chen Y, Li G, Han X. Nanoparticles transfected with plasmid-encoded lncRNA-OIP5-AS1 inhibit renal ischemia-reperfusion injury in mice via the miR-410-3p/Nrf2 axis. Ren Fail 2024; 46:2319327. [PMID: 38419565 PMCID: PMC10906121 DOI: 10.1080/0886022x.2024.2319327] [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: 08/17/2023] [Accepted: 02/09/2024] [Indexed: 03/02/2024] Open
Abstract
Nanostructures composed of liposomes and polydopamine (PDA) have demonstrated efficacy as carriers for delivering plasmids, effectively alleviating renal cell carcinoma. However, their role in acute kidney injury (AKI) remains unclear. This study aimed to investigate the effects of the plasmid-encoded lncRNA-OIP5-AS1@PDA nanoparticles (POP-NPs) on renal ischemia/reperfusion (RI/R) injury and explore the underlying mechanisms. RI/R or OGD/R models were established in mice and HK-2 cells, respectively. In vivo, vector or POP-NPs were administered (10 nmol, IV) 48 h after RI/R treatment. In the RI/R mouse model, the OIP5-AS1 and Nrf2/HO-1 expressions were down-regulated, while miR-410-3p expression was upregulated. POP-NPs treatment effectively reversed RI/R-induced renal tissue injury, restoring altered levels of blood urea nitrogen, creatinine, malondialdehyde, inflammatory factors (IL-8, IL-6, TNF-α), ROS, apoptosis, miR-410-3p, as well as the suppressed expression of SOD and Nrf2/HO-1 in the model mice. Similar results were obtained in cell models treated with POP-NPs. Additionally, miR-410-3p mimics could reverse the effects of POP-NPs on cellular models, partially counteracted by Nrf2 agonists. The binding relationship between OIP5-AS1 and miR-410-3p, alongside miR-410-3p and Nrf2, has been substantiated by dual-luciferase reporter and RNA pull-down assays. The study revealed that POP-NPs can attenuate RI/R-induced injury through miR-410-3p/Nrf2 axis. These findings lay the groundwork for future targeted therapeutic approaches utilizing nanoparticles for RI/R-induced AKI.
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Affiliation(s)
- Rongjie Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
| | - Xin Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
| | - Xuhui Zhu
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
| | - Tao Li
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
| | - Yansheng Li
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
| | - Peng Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
| | - Yuanhao Chen
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
| | - Gao Li
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
| | - Xiuwu Han
- Department of Urology, Beijing Chao-Yang Hospital, Beijing, China
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Elsaid FH, Hussein AM, Eid EA, Ammar OA, Khalil AA. Effect of intermittent fasting on adriamycin-induced nephropathy: Possible underlying mechanisms. Tissue Cell 2024; 88:102360. [PMID: 38489913 DOI: 10.1016/j.tice.2024.102360] [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: 10/28/2023] [Revised: 02/16/2024] [Accepted: 03/12/2024] [Indexed: 03/17/2024]
Abstract
PURPOSE Intermittent fasting (IF) has been shown to induce a well-organized adaptive defense against stress inside the cells, which increases the production of anti-oxidant defenses, repair of DNA, biogenesis of mitochondria, and genes that combat inflammation. So, the goal of the current investigation was to identify the effects of IF on rats with adriamycin (ADR)-induced nephropathy and any potential underlying mechanisms. METHODS Four groups of 40 mature Sprague-Dawley male rats were allocated as follow; control, fasting, ADR, and ADR plus fasting. After 8 weeks of ADR administration urine, blood samples and kidneys were taken for assessment of serum creatinine (Cr), BUN, urinary proteins, indicators of oxidative damage (malondialdehyde (MDA), reduced glutathione (GSH) and Catalase (CAT) levels), histopathological examinations, immunohistochemical examinations for caspase-3, Sirt1, aquaporin2 (AQP2) and real time PCR for antioxidant genes; Nrf2, HO-1 in kidney tissues. RESULTS IF significantly improved serum creatinine, BUN and urinary protein excretion, oxidative stress (low MDA with high CAT and GSH), in addition to morphological damage to the renal tubules and glomeruli as well as caspase-3 production during apoptosis. Moreover, IF stimulates significantly the expression of Sirt1 and Nrf2/HO-1 and AQP2. CONCLUSION AQP2, Sirt1, Nrf2/HO-1 signaling may be upregulated and activated by IF, which alleviates ADR nephropathy. Enhancing endogenous antioxidants, reducing apoptosis and tubulointerstitial damage, and maintaining the glomerular membrane's integrity are other goals.
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Affiliation(s)
- Fathy H Elsaid
- Department of Medical Physiology, Faculty of Medicine, Al-Azhar University, Assuit, Egypt
| | - Abdelaziz M Hussein
- Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
| | - Elsayed A Eid
- Department of Internal Medicine and Endocrinology, Faculty of Medicine, Delta University for Science and Technology, Gamasa, Egypt
| | - Omar A Ammar
- Department of Basic Science, Faculty of Applied Health Science and Technology, Delta University for Science and Technology, Gamasa, Egypt
| | - Ali Ali Khalil
- Department of Medical Physiology, Faculty of Medicine, Al-Azhar University, Assuit, Egypt
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3
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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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4
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Bondi CD, Hartman HL, Tan RJ. NRF2 in kidney physiology and disease. Physiol Rep 2024; 12:e15961. [PMID: 38418382 PMCID: PMC10901725 DOI: 10.14814/phy2.15961] [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: 11/20/2023] [Revised: 01/19/2024] [Accepted: 02/05/2024] [Indexed: 03/01/2024] Open
Abstract
The role of NRF2 in kidney biology has received considerable interest over the past decade. NRF2 transcriptionally controls genes responsible for cellular protection against oxidative and electrophilic stress and has anti-inflammatory functions. NRF2 is expressed throughout the kidney and plays a role in salt and water handling. In disease, animal studies show that NRF2 protects against tubulointerstitial damage and reduces interstitial fibrosis and tubular atrophy, and may slow progression of polycystic kidney disease. However, the role of NRF2 in proteinuric glomerular diseases is controversial. Although the NRF2 inducer, bardoxolone methyl (CDDO-Me), increases glomerular filtration rate in humans, it has not been shown to slow disease progression in diabetic kidney disease and Alport syndrome. Furthermore, bardoxolone methyl was associated with negative effects on fluid retention, proteinuria, and blood pressure. Several animal studies replicate findings of worsened proteinuria and a more rapid progression of kidney disease, although considerable controversy exists. It is clear that further study is needed to better understand the effects of NRF2 in the kidney. This review summarizes the available data to clarify the promise and risks associated with targeting NRF2 activity in the kidney.
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Affiliation(s)
- Corry D. Bondi
- Renal‐Electrolyte Division, Department of MedicineUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Hannah L. Hartman
- Renal‐Electrolyte Division, Department of MedicineUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Roderick J. Tan
- Renal‐Electrolyte Division, Department of MedicineUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
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5
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Liang LL, He MF, Zhou PP, Pan SK, Liu DW, Liu ZS. GSK3β: A ray of hope for the treatment of diabetic kidney disease. FASEB J 2024; 38:e23458. [PMID: 38315453 DOI: 10.1096/fj.202302160r] [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: 10/23/2023] [Revised: 12/09/2023] [Accepted: 01/17/2024] [Indexed: 02/07/2024]
Abstract
Diabetic kidney disease (DKD), a major microvascular complication of diabetes, is characterized by its complex pathogenesis, high risk of chronic renal failure, and lack of effective diagnosis and treatment methods. GSK3β (glycogen synthase kinase 3β), a highly conserved threonine/serine kinase, was found to activate glycogen synthase. As a key molecule of the glucose metabolism pathway, GSK3β participates in a variety of cellular activities and plays a pivotal role in multiple diseases. However, these effects are not only mediated by affecting glucose metabolism. This review elaborates on the role of GSK3β in DKD and its damage mechanism in different intrinsic renal cells. GSK3β is also a biomarker indicating the progression of DKD. Finally, the protective effects of GSK3β inhibitors on DKD are also discussed.
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Affiliation(s)
- Lu-Lu Liang
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Meng-Fei He
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Pan-Pan Zhou
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Shao-Kang Pan
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Dong-Wei Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Zhang-Suo Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
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6
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Ramanathan K, Fekadie M, Padmanabhan G, Gulilat H. Long noncoding RNA: An emerging diagnostic and therapeutic target in kidney diseases. Cell Biochem Funct 2024; 42:e3901. [PMID: 38100151 DOI: 10.1002/cbf.3901] [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: 09/01/2023] [Revised: 11/13/2023] [Accepted: 11/29/2023] [Indexed: 01/26/2024]
Abstract
Long noncoding RNAs (lncRNAs) have critical roles in the development of many diseases including kidney disease. An increasing number of studies have shown that lncRNAs are involved in kidney development and that their dysregulation can result in distinct disease processes, including acute kidney injury, chronic kidney disease, and renal cell carcinoma. Understanding the roles of lncRNAs in kidney disease may provide new diagnostic and therapeutic opportunities in the clinic. This review provides an overview of lncRNA characteristics, and biological function and discusses specific studies that provide insight into the function and potential application of lncRNAs in kidney disease treatment.
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Affiliation(s)
- Kumaresan Ramanathan
- Department of Biomedical Sciences, Faculty of Medical Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Minale Fekadie
- Department of Biomedical Sciences, Faculty of Medical Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
| | | | - Henok Gulilat
- Department of Biomedical Sciences, Faculty of Medical Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
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7
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Zhou J, Hong H, Zhao J, Fang R, Chen S, Tang C. Metabolome analysis to investigate the effect of heavy metal exposure and chemoprevention agents on toxic injury caused by a multi-heavy metal mixture in rats. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167513. [PMID: 37783434 DOI: 10.1016/j.scitotenv.2023.167513] [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: 07/10/2023] [Revised: 09/04/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
Heavy metal pollution is a significant threat to both the environment and living organisms. This is especially vital considering the persistent and cumulative nature of heavy metal exposure, which can lead to severe and chronic health consequences for individuals. Therefore, implementing effective treatments is critical to addressing the serious public health issues posed by heavy metal pollution. In this study, nontargeted metabolomics was carried out to investigate the metabolic changes associated with long-term low-dose intake of mixed heavy metal pollutants (MHMPs) in liver, kidney, and plasma samples of Sprague-Dawley (SD) rats with and without treatment to reveal the underlying toxic effects of MHMPs and the effects of chemoprevention agents, including epigallocatechin-3-gallate (EGCG), trisodium citrate dihydrate (TCD), and glutathione (GSH). In the liver, kidney, and plasma, we observed a total of 21, 69, and 16 metabolites, respectively, exhibiting significant differences (P < 0.05, fold change >1.2 or <0.83, and VIP ≥ 1) between the control group and the mixture group. The findings demonstrated that exposure to MHMPs leads to the dysregulation of numerous metabolic pathways, with a particular emphasis on purine metabolism and aminoacyl-tRNA biosynthesis with upregulated renal purine metabolites and downregulated hepatic purine metabolites as well as renal aminoacyl-tRNA biosynthesis-related metabolites. However, the application of chemical protectants was shown to partially restore the metabolic alterations induced by MHMPs, particularly purine metabolism-related metabolites, including hepatic adenine and renal adenine, guanine, guanosine, adenosine monophosphate (AMP), and hypoxanthine. In addition, liver adenosine, kidney inosine and L-phenylalanine were considered the main regulated sites based on their significant correlations with multiple heavy metals. Our study provides crucial insights into the toxicological mechanisms of heavy metal pollution and has the potential to guide the development of effective preventive strategies.
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Affiliation(s)
- Jinyue Zhou
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Hang Hong
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jinshun Zhao
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Rui Fang
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Shushu Chen
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Chunlan Tang
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China.
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8
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Zhang L, Chen F, Dong J, Wang R, Bi G, Xu D, Zhang Y, Deng Y, Lin W, Yang Z, Cao W. HDAC3 aberration-incurred GPX4 suppression drives renal ferroptosis and AKI-CKD progression. Redox Biol 2023; 68:102939. [PMID: 37890360 PMCID: PMC10638610 DOI: 10.1016/j.redox.2023.102939] [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: 09/26/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Acute kidney injury (AKI) progression to chronic kidney disease (CKD) represents a unique renal disease setting characterized by early renal cellular injury and regulated cell death, and later renal fibrosis, of which the critical role and nature of ferroptosis are only partially understood. Here, we report that renal tubular epithelial ferroptosis caused by HDAC3 (histone deacetylase 3) aberration and the resultant GPX4 suppression drives AKI-CKD progression. In mouse models of AKI-CKD transition induced by nephrotoxic aristolochic acid (AA) and folic acid (FA), renal tubular epithelial ferroptosis occurred early that coincided with preferential HDAC3 elevation and marked suppression of a core anti-ferroptosis enzyme GPX4 (glutathione peroxidase 4). Intriguingly, genetic Hdac3 knockout or administration of a HDAC3-selective inhibitor RGFP966 effectively mitigated the GPX4 suppression, ferroptosis and the fibrosis-associated renal functional loss. In cultured tubular epithelial cells, HDAC3 over-expression or inhibition inversely affected GPX4 abundances. Further analysis revealed that Gpx4 promoter contains a typical binding motif of transcription factor KLF5 (Kruppel-like factor 5). HDAC3 and KLF5 inducibly associated and bound to Gpx4 promoter upon AA treatment, leading to local histone hypoacetylation and GPX4 transactivation inhibition, which was blocked by RGFP966 and a KLF5 inhibitor ML264, respectively, suggesting that KLF5 co-regulated the HDAC3-incurred Gpx4 transcription inhibition. More importantly, in AKI-CKD mice receiving a GPX4 inactivator RSL3, the anti-ferroptosis and renoprotective effects of RGFP966 were largely abrogated, indicating that GPX4 is an essential downstream mediator of the HDAC3 aberration and renal ferroptosis during AKI-CKD transition. Together, our study identified a critical epigenetic pathway of ferroptosis during AKI-CKD transition and suggested that the strategies preserving GPX4 by HDAC3 inhibition are potentially effective to reduce renal ferroptosis and slow AKI-CKD progression.
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Affiliation(s)
- Lijun Zhang
- Yancheng Medical Research Center of Nanjing University Medical School, Department of Central Laboratory, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, The First People's Hospital of Yancheng, Yancheng, China; Nanjing University Medical School, Jiangsu Key Lab of Molecular Medicine, Nanjing, China
| | - Fang Chen
- Yancheng Medical Research Center of Nanjing University Medical School, Department of Central Laboratory, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, The First People's Hospital of Yancheng, Yancheng, China
| | - Jian Dong
- Nanjing University Medical School, Jiangsu Key Lab of Molecular Medicine, Nanjing, China
| | - Rong Wang
- Yangzhou Precision Research Institute of Kidney Disease, Department of Nephrology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Guangyu Bi
- Yangzhou Precision Research Institute of Kidney Disease, Department of Nephrology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Daoliang Xu
- Yangzhou Precision Research Institute of Kidney Disease, Department of Nephrology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Yingwei Zhang
- Department of Respirology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Yijun Deng
- Yancheng Medical Research Center of Nanjing University Medical School, Department of Central Laboratory, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, The First People's Hospital of Yancheng, Yancheng, China
| | - Wenjun Lin
- Department of Nephrology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Zhongzhou Yang
- Nanjing University Medical School, Jiangsu Key Lab of Molecular Medicine, Nanjing, China.
| | - Wangsen Cao
- Yancheng Medical Research Center of Nanjing University Medical School, Department of Central Laboratory, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, The First People's Hospital of Yancheng, Yancheng, China; Nanjing University Medical School, Jiangsu Key Lab of Molecular Medicine, Nanjing, China; Yangzhou Precision Research Institute of Kidney Disease, Department of Nephrology, Northern Jiangsu People's Hospital, Yangzhou, China.
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9
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Taha AM, Mahmoud AM, Ghonaim MM, Kamran A, AlSamhori JF, AlBarakat MM, Shrestha AB, Jaiswal V, Reiter RJ. Melatonin as a potential treatment for septic cardiomyopathy. Biomed Pharmacother 2023; 166:115305. [PMID: 37619482 DOI: 10.1016/j.biopha.2023.115305] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 08/02/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023] Open
Abstract
Septic cardiomyopathy (SCM) is a common complication of sepsis contributing to high mortality rates. Its pathophysiology involves complex factors, including inflammatory cytokines, mitochondrial dysfunction, oxidative stress, and immune dysregulation. Despite extensive research, no effective pharmacological agent has been established for sepsis-induced cardiomyopathy. Melatonin, a hormone with diverse functions in the body, has emerged as a potential agent for SCM through its anti-oxidant, anti-inflammatory, anti-apoptotic, and cardioprotective roles. Through various molecular levels of its mechanism of action, it counterattacks the adverse event of sepsis. Experimental studies have mentioned that melatonin protects against many cardiovascular diseases and exerts preventive effects on SCM. Moreover, melatonin has been investigated in combination with other drugs such as antibiotics, resveratrol, and anti-oxidants showing synergistic effects in reducing inflammation, anti-oxidant, and improving cardiac function. While preclinical studies have demonstrated positive results, clinical trials are required to establish the optimal dosage, route of administration, and treatment duration for melatonin in SCM. Its safety profile, low toxicity, and natural occurrence in the human body provide a favorable basis for its clinical use. This review aims to provide an overview of the current evidence of the use of melatonin in sepsis-induced cardiomyopathy (SICM). Melatonin appears to be promising as a possible treatment for sepsis-induced cardiomyopathy and demands further investigation.
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Affiliation(s)
- Amira Mohamed Taha
- Faculty of Medicine, Fayoum University, Fayoum, Egypt; Medical Research Group of Egypt (MRGE), Negida Academy, Arlington, MA, USA
| | | | | | - Ateeba Kamran
- Bachelor of Medicine, Bachelor of Surgery, Karachi Medical and Dental College, Karachi, Pakistan
| | | | - Majd M AlBarakat
- Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Abhigan Babu Shrestha
- Department of Internal Medicine, M Abdur Rahim Medical College, Dinajpur, Bangladesh.
| | | | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
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10
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He C, Wang K, Xia J, Qian D, Guo J, Zhong L, Tang D, Chen X, Peng W, Chen Y, Tang Y. Natural exosomes-like nanoparticles in mung bean sprouts possesses anti-diabetic effects via activation of PI3K/Akt/GLUT4/GSK-3β signaling pathway. J Nanobiotechnology 2023; 21:349. [PMID: 37759297 PMCID: PMC10536756 DOI: 10.1186/s12951-023-02120-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease characterized by hyperglycemia and insulin resistance. Mung bean sprouts are traditionally considered a "folk" hypoglycemic food and their pharmacological effects and underlying mechanisms warrant further investigation. PURPOSE This study aimed to investigate the anti-diabetic effects of the exosomes-like nanoparticles in mung bean sprouts (MELNs) and explore the related molecular mechanisms. RESULTS MELNs were isolated using a differential centrifugation-polyethylene glycol (PEG) method, and the identification of MELNs were confirmed by PAGE gel electrophoresis, agarose gel electrophoresis, thin-layer chromatography (TLC), and transmission electron microscopy (TEM). In the high-fat diet/streptozotocin (HFD/STZ) mouse model, MELNs ameliorated the progression of T2DM by increasing oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) results, decreasing the fasting blood glucose level, and reducing the serum triglycerides (TG) and total cholesterol (TC). Histopathological examinations indicated MELNs diminished inflammatory infiltration of hepatocytes and amplified the area of islet B cells. In addition, MELNs decreased the oxidative stress levels in liver tissue and had good biocompatibility. In vitro experiments verified that MELNs improved the viability of glucosamine (GlcN) induced insulin-resistant hepatocytes. Furthermore, this study also revealed that MELNs upregulated GLUT4 & Nrf2 and down-regulated GSK-3β via activating the PI3K/Akt signaling pathway, promoting the production of antioxidant enzymes, such as HO-1 and SOD, to reduce oxidative stress. CONCLUSION MELNs mitigated the progression of type 2 diabetes in HFD/STZ mouse model. The underlying molecular mechanism is related to PI3K/Akt/GLUT4/GSK-3β signaling pathway.
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Affiliation(s)
- Chengxun He
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ke Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
| | - Jun Xia
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Die Qian
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Juan Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Lian Zhong
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Dandan Tang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiuping Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Wei Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Yunhui Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Yong Tang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, School of Basic Medical Sciences, School of Health and Rehabilitation, CDUTCM-KEELE Joint Health and Medical Sciences Institute, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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11
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Kwok WTH, Kwak HA, Andreazza AC. N-acetylcysteine modulates rotenone-induced mitochondrial Complex I dysfunction in THP-1 cells. Mitochondrion 2023; 72:1-10. [PMID: 37419232 DOI: 10.1016/j.mito.2023.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/12/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
Mitochondrial Complex I dysfunction and oxidative stress have been part of the pathophysiology of several diseases ranging from mitochondrial disease to chronic diseases such as diabetes, mood disorders and Parkinson's Disease. Nonetheless, to investigate the potential of mitochondria-targeted therapeutic strategies for these conditions, there is a need further our understanding on how cells respond and adapt in the presence of Complex I dysfunction. In this study, we used low doses of rotenone, a classical inhibitor of mitochondrial complex I, to mimic peripheral mitochondrial dysfunction in THP-1 cells, a human monocytic cell line, and explored the effects of N-acetylcysteine on preventing this rotenone-induced mitochondrial dysfunction. Our results show that in THP-1 cells, rotenone exposure led to increases in mitochondrial superoxide, levels of cell-free mitochondrial DNA, and protein levels of the NDUFS7 subunit. N-acetylcysteine (NAC) pre-treatment ameliorated the rotenone-induced increase of cell-free mitochondrial DNA and NDUFS7 protein levels, but not mitochondrial superoxide. Furthermore, rotenone exposure did not affect protein levels of the NDUFV1 subunit but induced NDUFV1 glutathionylation. In summary, NAC may help to mitigate the effects of rotenone on Complex I and preserve the normal function of mitochondria in THP-1 cells.
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Affiliation(s)
- Winston Tse-Hou Kwok
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Haejin Angela Kwak
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Ana Cristina Andreazza
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Mitochondrial Innovation Initiative, Toronto, ON, Canada.
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12
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Li E, Benitez C, Boggess SC, Koontz M, Rose IV, Draeger N, Teter OM, Samelson AJ, Ullian EM, Kampmann M. CRISPRi-based screens in iAssembloids to elucidate neuron-glia interactions. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.26.538498. [PMID: 37163077 PMCID: PMC10168378 DOI: 10.1101/2023.04.26.538498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The sheer complexity of the brain has complicated our ability to understand its cellular mechanisms in health and disease. Genome-wide association studies have uncovered genetic variants associated with specific neurological phenotypes and diseases. In addition, single-cell transcriptomics have provided molecular descriptions of specific brain cell types and the changes they undergo during disease. Although these approaches provide a giant leap forward towards understanding how genetic variation can lead to functional changes in the brain, they do not establish molecular mechanisms. To address this need, we developed a 3D co-culture system termed iAssembloids (induced multi-lineage assembloids) that enables the rapid generation of homogenous neuron-glia spheroids. We characterize these iAssembloids with immunohistochemistry and single-cell transcriptomics and combine them with large-scale CRISPRi-based screens. In our first application, we ask how glial and neuronal cells interact to control neuronal death and survival. Our CRISPRi-based screens identified that GSK3β inhibits the protective NRF2-mediated oxidative stress response in the presence of reactive oxygen species elicited by high neuronal activity, which was not previously found in 2D monoculture neuron screens. We also apply the platform to investigate the role of APOE-ε4, a risk variant for Alzheimer's Disease, in its effect on neuronal survival. This platform expands the toolbox for the unbiased identification of mechanisms of cell-cell interactions in brain health and disease.
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Affiliation(s)
- Emmy Li
- Institute for Neurodegenerative Diseases, University of California, San Francisco, San Francisco, CA, USA
- Biomedical Sciences Graduate Program, University of California, San Francisco, San Francisco, CA, USA
| | - Camila Benitez
- TETRAD Graduate Program, University of California, San Francisco, San Francisco, CA, USA
| | - Steven C. Boggess
- Institute for Neurodegenerative Diseases, University of California, San Francisco, San Francisco, CA, USA
| | - Mark Koontz
- Department of Ophthalmology, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Indigo V.L. Rose
- Institute for Neurodegenerative Diseases, University of California, San Francisco, San Francisco, CA, USA
- Neuroscience Graduate Program, University of California, San Francisco, San Francisco, CA, USA
| | - Nina Draeger
- Institute for Neurodegenerative Diseases, University of California, San Francisco, San Francisco, CA, USA
| | - Olivia M. Teter
- Institute for Neurodegenerative Diseases, University of California, San Francisco, San Francisco, CA, USA
- UC Berkeley-UCSF Graduate Program in Bioengineering, University of California, San Francisco, San Francisco, CA, USA
| | - Avi J. Samelson
- Institute for Neurodegenerative Diseases, University of California, San Francisco, San Francisco, CA, USA
| | - Erik M. Ullian
- Department of Ophthalmology, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Martin Kampmann
- Institute for Neurodegenerative Diseases, University of California, San Francisco, San Francisco, CA, USA
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
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13
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Bao B, Liu H, Han Y, Xu L, Xing W, Li Z. Simultaneous Elimination of Reactive Oxygen Species and Activation of Nrf2 by Ultrasmall Nanoparticles to Relieve Acute Kidney Injury. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16460-16470. [PMID: 36946292 DOI: 10.1021/acsami.3c00052] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Excess reactive oxygen species (ROS) can induce serious acute kidney injury (AKI) to result in numerous deaths annually in clinical practice. Elimination of excess ROS by advanced nanotechnology is a very promising AKI therapy. In this Article, we report that PVP-stabilized and quercetin-functionalized ultrasmall Cu2-xSe nanoparticles (abbreviated as CSPQ NPs) can efficiently scavenge ROS and increase the expression of intracellular antioxidative enzymes by activating the nuclear factor erythroid 2-related factor 2 (Nrf2) protein, which drastically alleviates the cellular oxidative stress. Our ultrasmall nanoparticles exhibit excellent biocompatibility. They can be rapidly accumulated into the injured kidney to simultaneously eliminate ROS and activate Nrf2 to improve the renal function. This work demonstrates the great potential of simultaneous elimination of ROS and activation of intracellular Nrf2 in treatment of AKI. It also highlights the potential of CSPQ NPs in protection and prevention of AKI.
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Affiliation(s)
- Bolin Bao
- Department of Radiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, P. R. China
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Suzhou Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, P. R. China
| | - Hanghang Liu
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Suzhou Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, P. R. China
| | - Yaobao Han
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Suzhou Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, P. R. China
| | - Liyao Xu
- Department of Radiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, P. R. China
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Suzhou Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, P. R. China
| | - Wei Xing
- Department of Radiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, P. R. China
| | - Zhen Li
- Department of Radiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, P. R. China
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Suzhou Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, P. R. China
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14
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Brinks R, Wruck CJ, Schmitz J, Schupp N. Nrf2 Activation Does Not Protect from Aldosterone-Induced Kidney Damage in Mice. Antioxidants (Basel) 2023; 12:antiox12030777. [PMID: 36979025 PMCID: PMC10044832 DOI: 10.3390/antiox12030777] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/10/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2) is downregulated in chronic kidney disease (CKD). Activation of Nrf2 might be a therapeutic option in CKD. Here we investigate the effect of Nrf2 activation on aldosterone (Aldo)-induced renal injury. Wild-type (WT) mice, transgenic Keap1 hypomorphic (Nrf2ꜛ, genotype results in upregulation of Nrf2 expression) mice and WT mice treated with the Nrf2 activator sulforaphane (Sulf) received Aldo for 4 weeks. In Aldo-treated mice, kidneys were significantly heavier and pathologically altered, reflected by increased urinary albumin levels and tissue damage. In Nrf2ꜛ-Aldo mice the tubule damage marker NGAL was significantly decreased. Increased oxidative damage markers (8-OHdG, 15-isoprostane F2t) were measured in all Aldo-treated groups. Aldo-increased Nrf2 amounts were mainly found in the late tubule system. The amount of phosphorylated and thus putatively active Nrf2 was significantly increased by Aldo only in WT mice. However, expression of Nrf2 target genes NQO1 and HO1 was decreased in all Aldo-infused mice. GSK3β, which promotes Nrf2 degradation, was significantly increased in the kidneys of Aldo-treated WT mice. Neither genetic nor pharmacological Nrf2 activation was able to prevent oxidative injury induced by Aldo, probably due to induction of negative regulators of Nrf2.
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Affiliation(s)
- Ronja Brinks
- Institute of Toxicology, Medical Faculty, University of Düsseldorf, 40225 Düsseldorf, Germany
| | - Christoph Jan Wruck
- Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, 52074 Aachen, Germany
| | - Jutta Schmitz
- Institute of Toxicology, Medical Faculty, University of Düsseldorf, 40225 Düsseldorf, Germany
| | - Nicole Schupp
- Institute of Toxicology, Medical Faculty, University of Düsseldorf, 40225 Düsseldorf, Germany
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15
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Administration of a single dose of lithium ameliorates rhabdomyolysis-associated acute kidney injury in rats. PLoS One 2023; 18:e0281679. [PMID: 36795689 PMCID: PMC9934413 DOI: 10.1371/journal.pone.0281679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/27/2023] [Indexed: 02/17/2023] Open
Abstract
Rhabdomyolysis is characterized by muscle damage and leads to acute kidney injury (AKI). Clinical and experimental studies suggest that glycogen synthase kinase 3β (GSK3β) inhibition protects against AKI basically through its critical role in tubular epithelial cell apoptosis, inflammation and fibrosis. Treatment with a single dose of lithium, an inhibitor of GSK3β, accelerated recovery of renal function in cisplatin and ischemic/reperfusion-induced AKI models. We aimed to evaluate the efficacy of a single dose of lithium in the treatment of rhabdomyolysis-induced AKI. Male Wistar rats were allocated to four groups: Sham, received saline 0.9% intraperitoneally (IP); lithium (Li), received a single IP injection of lithium chloride (LiCl) 80 mg/kg body weight (BW); glycerol (Gly), received a single dose of glycerol 50% 5 mL/kg BW intramuscular (IM); glycerol plus lithium (Gly+Li), received a single dose of glycerol 50% IM plus LiCl IP injected 2 hours after glycerol administration. After 24 hours, we performed inulin clearance experiments and collected blood / kidney / muscle samples. Gly rats exhibited renal function impairment accompanied by kidney injury, inflammation and alterations in signaling pathways for apoptosis and redox state balance. Gly+Li rats showed a remarkable improvement in renal function as well as kidney injury score, diminished CPK levels and an overstated decrease of renal and muscle GSK3β protein expression. Furthermore, administration of lithium lowered the amount of macrophage infiltrate, reduced NFκB and caspase renal protein expression and increased the antioxidant component MnSOD. Lithium treatment attenuated renal dysfunction in rhabdomyolysis-associated AKI by improving inulin clearance and reducing CPK levels, inflammation, apoptosis and oxidative stress. These therapeutic effects were due to the inhibition of GSK3β and possibly associated with a decrease in muscle injury.
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16
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Eddie-Amadi BF, Ezejiofor AN, Orish CN, Cirovic A, Cirovic A, Orisakwe OE. Banana peel extract alleviate inflammation and oxidative stress via modulation of the Nrf2/Hmox-1 and NF-κB pathways in thyroid of heavy metal mixture exposed female rats. TOXICOLOGY RESEARCH AND APPLICATION 2023. [DOI: 10.1177/23978473231167422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Introduction This is an evaluation of the effects of banana peel BP extract on the heavy metals’ mixture HMM mediated oxido-inflammatory effects in the thyroid of female albino rats. Methods Five groups (5 female rats/group) were treated as follows for 60 days: Group 1: Deionized water only; Group 2: (Pb, Hg, Mn and Al); Group 3: 200 mg/kg BP extract + HMM; Group 4: 400 mg/kg BP extract + HMM; Group 5: 800 mg/kg BP extract + HMM. On day 60 animals were euthanized, thyroid was harvested and used for, malondialdehyde MDA, nitric oxide NO, antioxidants, tumor necrosis factor alpha (TNF – α), interleukin 6 (IL – 6), Caspase-3, Nuclear factor erythroid 2- related factor 2 (Nrf2), Nuclear factor kappa B (NfkB) and Heme Oxygynase – 1 (Hmox-1) and histopathology. Results There was significant bioaccumulation of Pb, Al, Hg and MN; elevated IL-6 and Tnf-α, MDA and NO, caspase-3 and Nrf2, NF-κB and Hmox-1 in the HMM only group in comparison to the control. There was significant ( p < 0.05) decrease in SOD, CAT GSH activities in HMM only exposed group in comparison to the control deionized water group, whereas BP co-treatment with HMM significantly ( p < 0.05) increased SOD, CAT GSH activities. Co-treatment with BP extract also reversed most of these effects. Discussion and Conclusions BP extract may ameliorate HMM -induced thyrotoxicity in female albino rats by blunting oxido-inflammatory activities.
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Wu Y, Bai Y, Feng Y, Zhang Q, Diao Z, Liu W. Renalase Prevents Renal Fibrosis by Inhibiting Endoplasmic Reticulum Stress and Down-Regulating GSK-3β/Snail Signaling. Int J Med Sci 2023; 20:669-681. [PMID: 37082730 PMCID: PMC10110476 DOI: 10.7150/ijms.82192] [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: 12/27/2022] [Accepted: 02/24/2023] [Indexed: 04/22/2023] Open
Abstract
Background: Treating renal fibrosis is crucial to delaying chronic kidney disease. The glycogen synthase kinase-3β (GSK-3β)/Snail pathway regulates renal fibrosis and Renalase can ameliorate renal interstitial fibrosis. However, it is not clear whether GSK-3β/Snail signaling affects Renalase action. Here, we explored the role and mechanism of GSK-3β/Snail in the anti-fibrosis action of Renalase. Materials and methods: We used mice with complete unilateral ureteral obstruction (UUO) and human proximal renal tubular epithelial (HK-2) cells with transforming growth factor-β1 (TGF-β1)-induced fibrosis to explore the role and regulatory mechanism of the GSK-3β/Snail pathway in the amelioration of renal fibrosis by Renalase. Results: In UUO mice and TGF-β1-induced fibrotic HK-2 cells, the expression of p-GSK-3β-Tyr216/p-GSK-3β-Ser9, GSK-3β and Snail was significantly increased, and endoplasmic reticulum (ER) stress was activated. After Renalase supplementation, fibrosis was alleviated, ER stress was inhibited and p-GSK-3β-Tyr216/p-GSK-3β-Ser9, GSK-3β and Snail were significantly down-regulated. The amelioration of renal fibrosis by Renalase and its inhibitory effect on GSK-3β/Snail were reversed by an ER stress agonist. Furthermore, when an adeno-associated virus or plasmid was used to overexpress GSK-3β, the effect of Renalase on delaying renal fibrosis was counteracted, although ER stress markers did not change. Conclusion: Renalase prevents renal fibrosis by down-regulating GSK-3β/Snail signaling through inhibition of ER stress. Exogenous Renalase may be an effective method of slowing or stopping chronic kidney disease progression.
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Affiliation(s)
- Yiru Wu
- Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xi Cheng District, Beijing 100050, P. R. China
| | - Yu Bai
- Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xi Cheng District, Beijing 100050, P. R. China
| | - Yiduo Feng
- Department of Nephrology, Beijing Tiantan Hospital, Capital Medical University, No.119 South Fourth Ring Road West, Fengtai District, Beijing,100070, P. R. China
| | - Qidong Zhang
- Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xi Cheng District, Beijing 100050, P. R. China
| | - Zongli Diao
- Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xi Cheng District, Beijing 100050, P. R. China
| | - Wenhu Liu
- Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xi Cheng District, Beijing 100050, P. R. China
- ✉ Corresponding author: Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P. R. China. Tel.: +86-10-63138579; Fax: +86-10-63139144; E-mail:
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18
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Dehydroeburicoic Acid, a Dual Inhibitor against Oxidative Stress in Alcoholic Liver Disease. Pharmaceuticals (Basel) 2022; 16:ph16010014. [PMID: 36678511 PMCID: PMC9866905 DOI: 10.3390/ph16010014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/04/2022] [Accepted: 12/08/2022] [Indexed: 12/25/2022] Open
Abstract
Alcoholic liver disease (ALD) is a complicated disease which can lead to hepatocellular carcinoma; however, there is a lack of satisfactory therapeutics. Dehydroeburicoic acid (DEA) (1), a triterpenoid isolated from Antrodia cinnamomea, has been reported to act against ALD, but its mechanisms of action are still not clear. In this study, we report for the first time the use of DEA (1) as a dual inhibitor of the Keap1-Nrf2 protein-protein interaction (PPI) and GSK3β in an in vitro ALD cell model. DEA (1) engages Keap1 to disrupt the Keap1-Nrf2 PPI and inhibits GSK3β to restore Nrf2 activity in a Keap1-independent fashion. DEA (1) promotes Nrf2 nuclear translocation to activate downstream antioxidant genes. Importantly, DEA (1) restores the mitochondrial dysfunction induced by ethanol and generates antioxidant activity in the ALD cell model with minimal toxicity. We anticipate that DEA (1) could be a potential scaffold for the further development of clinical agents for treating ALD.
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19
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Eddie-Amadi BF, Ezejiofor AN, Orish CN, Orisakwe OE. Zn and Se abrogate heavy metal mixture induced ovarian and thyroid oxido-inflammatory effects mediated by activation of NRF2-HMOX-1 in female albino rats. Curr Res Toxicol 2022; 4:100098. [PMID: 36624872 PMCID: PMC9823124 DOI: 10.1016/j.crtox.2022.100098] [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: 10/04/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
The thyroid is vital for the proper functioning of the female reproductive system since it regulates the metabolism and development of ovary. This is an evaluation of the essential trace elements ETE on the heavy metals mixture HMM mediated oxido-inflammatory effects in the ovary and thyroid of female albino rats. Eight groups (5 female rats /group) were treated as follows for 60 days: Group 1: Deionized water only; Group 2: (Pb, Hg, Mn and Al); Group 3: HMM + ZnCl2, 0.80 mg/kg; Group 4: HMM + Na2SeO3, 1.50 mg/kg; Group 5: HMM + ZnCl2, 0.80 mg/kg and Na2SeO3, 1.50 mg/kg combined. On day 60 animals were euthanized, ovary and thyroid were harvested and used for, MDA, NO, antioxidants, TNF-α, IL-6, HMOX-1, Caspase-3, NF-KB, NRF2, HM and histopathology. There was significant bioaccumulation of Pb, Al, Hg and MN; elevated IL-6 and TNF-α, MDA and NO, caspase-3 and NRF2, NFKB and HMOX-1 with significant decrease in antioxidants in the HMM only group in comparison to the control. Co-treatment with ETE reversed most of these effects. ETE may ameliorate HMM -induced ovarian and thyrotoxicity in female albino rats by blunting oxido-inflammatory activities.
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Affiliation(s)
- Boma F. Eddie-Amadi
- World Bank Africa Centre of Excellence in Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Anthonet N. Ezejiofor
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Chinna N. Orish
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Orish E. Orisakwe
- World Bank Africa Centre of Excellence in Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria,Corresponding author at: African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria.
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20
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Wu Y, Liu J, Liu S, Fan W, Ding C, Gao Z, Tang Z, Luo Y, Shi X, Tan L, Song S. Bromoacetic acid causes oxidative stress and uric acid metabolism dysfunction via disturbing mitochondrial function and Nrf2 pathway in chicken kidney. ENVIRONMENTAL TOXICOLOGY 2022; 37:2910-2923. [PMID: 36017758 DOI: 10.1002/tox.23647] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Since the outbreak of COVID-19, widespread utilization of disinfectants has led to a tremendous increase in the generation of disinfection byproducts worldwide. Bromoacetic acid (BAA), one of the common disinfection byproducts in the environment, has triggered public concern because of its adverse effects on urinary system in mammals. Nevertheless, the BAA-induced nephrotoxicity and potential mechanism in birds still remains obscure. According to the detected content in the Taihu Lake Basin, the model of BAA exposure in chicken was established at doses of 0, 3, 300, 3000 μg/L for 4 weeks. Our results indicated that BAA exposure caused kidney swelling and structural disarrangement. BAA led to disorder in renal function (CRE, BUN, UA) and increased apoptosis (Bax, Bcl-2, caspase3). BAA suppressed the expression of mitochondrial biogenesis genes (PGC-1α, Nrf1, TFAM) and OXPHOS complex I genes (ND1, ND2, ND3, ND4, ND4L, ND5, ND6). Subsequently, BAA destroyed the expression of Nrf2 antioxidant reaction genes (Nrf2, Keap1, HO-1, NQO1, GCLM, GCLC). Furthermore, renal oxidative damage led to disorder in uric acid metabolism genes (Mrp2, Mrp4, Bcrp, OAT1, OAT2, OAT3) and exacerbated destruction in renal function. Overall, our study provided insights into the potential mechanism of BAA-induced nephrotoxicity, which were important for the clinical monitoring and prevention of BAA.
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Affiliation(s)
- Yuting Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Jiwen Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Shuhui Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Wentao Fan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Chenchen Ding
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zhangshan Gao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zhihui Tang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yan Luo
- Administration for Market Regulation of Guangdong Province Key Laboratory of Supervision for Edible Agricultural Products, Shenzhen Centre of Inspection and Testing for Agricultural Products, Shenzhen, China
| | - Xizhi Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Lei Tan
- Administration for Market Regulation of Guangdong Province Key Laboratory of Supervision for Edible Agricultural Products, Shenzhen Centre of Inspection and Testing for Agricultural Products, Shenzhen, China
| | - Suquan Song
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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21
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Zhang S, Ye J, Wang L, Zhong X, Zou X, Qiu F, Huang Z. Piceatannol protects rat neuron cells from oxygen-glucose deprivation reperfusion injury via regulation of GSK-3β/Nrf2 signaling pathway. Zhejiang Da Xue Xue Bao Yi Xue Ban 2022; 51:552-562. [PMID: 36581571 PMCID: PMC10264976 DOI: 10.3724/zdxbyxb-2022-0328] [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: 06/20/2022] [Accepted: 09/20/2022] [Indexed: 12/03/2022]
Abstract
OBJECTIVE To investigate the effect and mechanism of piceatannol on cerebral ischemia-reperfusion injury. METHODS The oxygen-glucose deprivation reperfusion (OGD/R) model was constructed in primary cultured suckling rat cortical neuron cells. After 2 h of oxygen-glucose deprivation, the cells were treated with piceatannol for 24 h. The cell survival rate was detected by MTT assay, and the degree of cell damage was detected by intracellular lactate dehydrogenase (LDH) release assay. The activity of superoxide dismutase (SOD) and the content of adenosine triphosphate (ATP) were detected by colorimetric method. The content of reactive oxygen species (ROS) was detected by flow cytometry or observed with inverted fluorescence microscope. The ultrastructure of mitochondria was observed with transmission electron microscopy. Western blotting was used to detect the phosphorylation levels of protein kinase B (AKT) and glycogen synthase kinase (GSK)-3β. Immunofluorescence staining was used to observe the nuclear localization of nuclear factor-erythroid 2-related factor (Nrf) 2. After OGD/R neuron cells were pretreated with Nrf2 inhibitor ML385 for 24 h, the effect of Nrf2 on the improvement of cell activity and antioxidant activity of piceatannol were investigated. Western blotting was used to detect the protein expression levels of Nrf2, heme oxygenase (HO) 1 and NADPH quinone oxidoreductase (NQO) 1. RESULTS Piceatannol significantly increased the survival rate of OGD/R neurons, decreased LDH release and reactive oxygen species content, increased SOD activity, ameliorated mitochondrial ultrastructural damage, increased mitochondrial membrane potential and ATP level (all P<0.05), increased phosphorylation of AKT and GSK-3β protein, up-regulated the expression of Nrf2, HO-1 and NQO1 protein, increased the nuclear-to-plasma ratio of Nrf2, and promoted the nuclear transfer of Nrf2 (all P<0.05). ML385 could significantly reverse the rescue effect of paclitaxel on the model cells and the regulatory activities of SOD, ROS and LDH (all P<0.05). CONCLUSION Piceatannol can regulate Nrf2 by activating GSK-3β signaling pathway, promote its nuclear translocation, exert corresponding antioxidant effect, and protect mitochondrial structure and function in rat neuron cells.
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Affiliation(s)
- Shuyuan Zhang
- 1. School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiayi Ye
- 1. School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Lingfeng Wang
- 1. School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xiaoming Zhong
- 1. School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xiaowei Zou
- 1. School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Fengmei Qiu
- 1. School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Zhen Huang
- 1. School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
- 2. Zhejiang Provincial Key Laboratory of Neuropharmacology and Translational Medicine, Hangzhou 310053, China
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22
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Bondi CD, Rush BM, Hartman HL, Wang J, Al-Bataineh MM, Hughey RP, Tan RJ. Suppression of NRF2 Activity by HIF-1α Promotes Fibrosis after Ischemic Acute Kidney Injury. Antioxidants (Basel) 2022; 11:1810. [PMID: 36139884 PMCID: PMC9495756 DOI: 10.3390/antiox11091810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/04/2022] [Accepted: 09/08/2022] [Indexed: 01/26/2023] Open
Abstract
Acute kidney injury (AKI) is a rapid decline in renal function and can occur after ischemia/reperfusion injury (IRI) to the tubular epithelia. The nuclear factor erythroid-2-related factor 2 (NRF2) pathway protects against AKI and AKI-to-chronic kidney disease (CKD) progression, but we previously demonstrated that severe IRI maladaptively reduced NRF2 activity in mice. To understand the mechanism of this response, we subjected C57BL/6J mice to unilateral kidney IRI with ischemia times that were titrated to induce mild to severe injury. Mild IRI increased NRF2 activity and was associated with renal recovery, whereas severe IRI decreased NRF2 activity and led to progressive CKD. Due to these effects of ischemia, we tested the hypothesis that hypoxia-inducible factor-1α (HIF-1α) mediates NRF2 activity. To mimic mild and severe ischemia, we activated HIF-1α in HK-2 cells in nutrient-replete or nutrient-deficient conditions. HIF-1α activation in nutrient-replete conditions enhanced NRF2 nuclear localization and activity. However, in nutrient-deficient conditions, HIF-1α activation suppressed NRF2 nuclear localization and activity. Nuclear localization was rescued with HIF-1α siRNA knockdown. Our results suggest that severe ischemic AKI leads to HIF-1α-mediated suppression of NRF2, leading to AKI-to-CKD progression.
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Affiliation(s)
| | | | | | | | | | | | - Roderick J. Tan
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 152671, USA
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23
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Zhou X, Torres VE. Emerging therapies for autosomal dominant polycystic kidney disease with a focus on cAMP signaling. Front Mol Biosci 2022; 9:981963. [PMID: 36120538 PMCID: PMC9478168 DOI: 10.3389/fmolb.2022.981963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/05/2022] [Indexed: 11/29/2022] Open
Abstract
Autosomal dominant polycystic kidney disease (ADPKD), with an estimated genetic prevalence between 1:400 and 1:1,000 individuals, is the third most common cause of end stage kidney disease after diabetes mellitus and hypertension. Over the last 3 decades there has been great progress in understanding its pathogenesis. This allows the stratification of therapeutic targets into four levels, gene mutation and polycystin disruption, proximal mechanisms directly caused by disruption of polycystin function, downstream regulatory and signaling pathways, and non-specific pathophysiologic processes shared by many other diseases. Dysfunction of the polycystins, encoded by the PKD genes, is closely associated with disruption of calcium and upregulation of cyclic AMP and protein kinase A (PKA) signaling, affecting most downstream regulatory, signaling, and pathophysiologic pathways altered in this disease. Interventions acting on G protein coupled receptors to inhibit of 3′,5′-cyclic adenosine monophosphate (cAMP) production have been effective in preclinical trials and have led to the first approved treatment for ADPKD. However, completely blocking cAMP mediated PKA activation is not feasible and PKA activation independently from cAMP can also occur in ADPKD. Therefore, targeting the cAMP/PKA/CREB pathway beyond cAMP production makes sense. Redundancy of mechanisms, numerous positive and negative feedback loops, and possibly counteracting effects may limit the effectiveness of targeting downstream pathways. Nevertheless, interventions targeting important regulatory, signaling and pathophysiologic pathways downstream from cAMP/PKA activation may provide additive or synergistic value and build on a strategy that has already had success. The purpose of this manuscript is to review the role of cAMP and PKA signaling and their multiple downstream pathways as potential targets for emergent therapies for ADPKD.
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Affiliation(s)
- Xia Zhou
- *Correspondence: Xia Zhou, ; Vicente E. Torres,
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24
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Loh D, Reiter RJ. Melatonin: Regulation of Viral Phase Separation and Epitranscriptomics in Post-Acute Sequelae of COVID-19. Int J Mol Sci 2022; 23:8122. [PMID: 35897696 PMCID: PMC9368024 DOI: 10.3390/ijms23158122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/09/2022] [Accepted: 07/20/2022] [Indexed: 01/27/2023] Open
Abstract
The relentless, protracted evolution of the SARS-CoV-2 virus imposes tremendous pressure on herd immunity and demands versatile adaptations by the human host genome to counter transcriptomic and epitranscriptomic alterations associated with a wide range of short- and long-term manifestations during acute infection and post-acute recovery, respectively. To promote viral replication during active infection and viral persistence, the SARS-CoV-2 envelope protein regulates host cell microenvironment including pH and ion concentrations to maintain a high oxidative environment that supports template switching, causing extensive mitochondrial damage and activation of pro-inflammatory cytokine signaling cascades. Oxidative stress and mitochondrial distress induce dynamic changes to both the host and viral RNA m6A methylome, and can trigger the derepression of long interspersed nuclear element 1 (LINE1), resulting in global hypomethylation, epigenetic changes, and genomic instability. The timely application of melatonin during early infection enhances host innate antiviral immune responses by preventing the formation of "viral factories" by nucleocapsid liquid-liquid phase separation that effectively blockades viral genome transcription and packaging, the disassembly of stress granules, and the sequestration of DEAD-box RNA helicases, including DDX3X, vital to immune signaling. Melatonin prevents membrane depolarization and protects cristae morphology to suppress glycolysis via antioxidant-dependent and -independent mechanisms. By restraining the derepression of LINE1 via multifaceted strategies, and maintaining the balance in m6A RNA modifications, melatonin could be the quintessential ancient molecule that significantly influences the outcome of the constant struggle between virus and host to gain transcriptomic and epitranscriptomic dominance over the host genome during acute infection and PASC.
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Affiliation(s)
- Doris Loh
- Independent Researcher, Marble Falls, TX 78654, USA;
| | - Russel J. Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX 78229, USA
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25
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Bisdemethoxycurcumin Attenuated Renal Injury via Activation of Keap1/Nrf2 Pathway in High-Fat Diet-Fed Mice. Int J Mol Sci 2022; 23:ijms23137395. [PMID: 35806399 PMCID: PMC9266686 DOI: 10.3390/ijms23137395] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/29/2022] [Accepted: 06/29/2022] [Indexed: 02/04/2023] Open
Abstract
Bisdemethoxycurcumin (BDMC), a principal and active component of edible turmeric, was previously found to have beneficial effects on metabolic diseases. Chronic kidney disease (CKD) may benefit from its potential therapeutic use. Using a high-fat diet (HFD)-fed mouse model, we examined the effects of BDMC on renal injury and tried to determine how its associated mechanism works. A number of metabolic disorders are significantly improved by BDMC, including obesity, hyperglycemia, hyperinsulinemia, hyperlipidemia and inflammation. Further research on renal histopathology and function showed that BDMC could repair renal pathological changes and enhance renal function. Moreover, decreased serum malondialdehyde (MDA), elevated superoxide dismutase (SOD) activity, and the inhibition of renal reactive oxygen species (ROS) overproduction revealed the alleviation of oxidative stress after BDMC administration. In addition, renal Kelch-like ECH-associated protein 1/nuclear factor erythroid 2-related factor 2 (Keap1/Nrf2) pathway was activated in BDMC-treated mice. In conclusion, these findings demonstrated BDMC as a potential therapy for HFD-induced CKD via the activation of the Keap1/Nrf2 pathway.
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26
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Aranda-Rivera AK, Cruz-Gregorio A, Pedraza-Chaverri J, Scholze A. Nrf2 Activation in Chronic Kidney Disease: Promises and Pitfalls. Antioxidants (Basel) 2022; 11:antiox11061112. [PMID: 35740009 PMCID: PMC9220138 DOI: 10.3390/antiox11061112] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/01/2022] [Accepted: 06/01/2022] [Indexed: 11/16/2022] Open
Abstract
The nuclear factor erythroid 2-related factor 2 (Nrf2) protects the cell against oxidative damage. The Nrf2 system comprises a complex network that functions to ensure adequate responses to redox perturbations, but also metabolic demands and cellular stresses. It must be kept within a physiologic activity range. Oxidative stress and alterations in Nrf2-system activity are central for chronic-kidney-disease (CKD) progression and CKD-related morbidity. Activation of the Nrf2 system in CKD is in multiple ways related to inflammation, kidney fibrosis, and mitochondrial and metabolic effects. In human CKD, both endogenous Nrf2 activation and repression exist. The state of the Nrf2 system varies with the cause of kidney disease, comorbidities, stage of CKD, and severity of uremic toxin accumulation and inflammation. An earlier CKD stage, rapid progression of kidney disease, and inflammatory processes are associated with more robust Nrf2-system activation. Advanced CKD is associated with stronger Nrf2-system repression. Nrf2 activation is related to oxidative stress and moderate uremic toxin and nuclear factor kappa B (NF-κB) elevations. Nrf2 repression relates to high uremic toxin and NF-κB concentrations, and may be related to Kelch-like ECH-associated protein 1 (Keap1)-independent Nrf2 degradation. Furthermore, we review the effects of pharmacological Nrf2 activation by bardoxolone methyl, curcumin, and resveratrol in human CKD and outline strategies for how to adapt future Nrf2-targeted therapies to the requirements of patients with CKD.
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Affiliation(s)
- Ana Karina Aranda-Rivera
- Laboratory F-315, Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico; (A.K.A.-R.); (A.C.-G.); (J.P.-C.)
| | - Alfredo Cruz-Gregorio
- Laboratory F-315, Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico; (A.K.A.-R.); (A.C.-G.); (J.P.-C.)
| | - José Pedraza-Chaverri
- Laboratory F-315, Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico; (A.K.A.-R.); (A.C.-G.); (J.P.-C.)
| | - Alexandra Scholze
- Department of Nephrology, Odense University Hospital, 5000 Odense C, Denmark
- Institute of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark
- Correspondence:
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27
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Hao W, Li M, Cai Q, Wu S, Li X, He Q, Hu Y. Roles of NRF2 in Fibrotic Diseases: From Mechanisms to Therapeutic Approaches. Front Physiol 2022; 13:889792. [PMID: 35721561 PMCID: PMC9203969 DOI: 10.3389/fphys.2022.889792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/29/2022] [Indexed: 11/24/2022] Open
Abstract
Fibrosis is a persistent inflammatory response that causes scarring and tissue sclerosis by stimulating myofibroblasts to create significant quantities of extracellular matrix protein deposits in the tissue. Oxidative stress has also been linked to the development of fibrosis in several studies. The nuclear erythroid 2-related factor 2 (NRF2) transcription factor controls the expression of several detoxification and antioxidant genes. By binding to antioxidant response elements, NRF2 is activated by oxidative or electrophilic stress and promotes its target genes, resulting in a protective effect on cells. NRF2 is essential for cell survival under oxidative stress conditions. This review describes Kelch-like epichlorohydrin-associated protein 1 (KEAP1)/NRF2 signaling mechanisms and presents recent research advances regarding NRF2 and its involvement in primary fibrotic lesions such as pulmonary fibrosis, hepatic fibrosis, myocardial fibrosis, and renal fibrosis. The related antioxidant substances and drugs are described, along with the mechanisms by which KEAP1/NRF2 regulation positively affects the therapeutic response. Finally, the therapeutic prospects and potential value of NRF2 in fibrosis are summarized. Further studies on NRF2 may provide novel therapeutic approaches for fibrosis.
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Affiliation(s)
- Wenlong Hao
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Minghao Li
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Qingmin Cai
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Shiying Wu
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Xiangyao Li
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Quanyu He
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Yongbin Hu
- Department of Pathology, Basic Medical School, Central South University, Changsha, China
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Yongbin Hu,
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28
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Zhu Z, Hu J, Chen Z, Feng J, Yang X, Liang W, Ding G. Transition of acute kidney injury to chronic kidney disease: role of metabolic reprogramming. Metabolism 2022; 131:155194. [PMID: 35346693 DOI: 10.1016/j.metabol.2022.155194] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/04/2022] [Accepted: 03/22/2022] [Indexed: 02/07/2023]
Abstract
Acute kidney injury (AKI) is a global public health concern associated with high morbidity and mortality. Although advances in medical management have improved the in-hospital mortality of severe AKI patients, the renal prognosis for AKI patients in the later period is not encouraging. Recent epidemiological investigations have indicated that AKI significantly increases the risk for the development of chronic kidney disease (CKD) and end-stage renal disease (ESRD) in the future, further contributing to the economic burden on health care systems. The transition of AKI to CKD is complex and often involves multiple mechanisms. Recent studies have suggested that renal tubular epithelial cells (TECs) are more prone to metabolic reprogramming during AKI, in which the metabolic process in the TECs shifts from fatty acid β-oxidation (FAO) to glycolysis due to hypoxia, mitochondrial dysfunction, and disordered nutrient-sensing pathways. This change is a double-edged role. On the one hand, enhanced glycolysis acts as a compensation pathway for ATP production; on the other hand, long-term shut down of FAO and enhanced glycolysis lead to inflammation, lipid accumulation, and fibrosis, contributing to the transition of AKI to CKD. This review discusses developments and therapies focused on the metabolic reprogramming of TECs during AKI, and the emerging questions in this evolving field.
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Affiliation(s)
- Zijing Zhu
- Division of Nephrology, Renmin Hospital of Wuhan University, 430060 Wuhan, China; Nephrology and Urology Research Institute of Wuhan University, 430060 Wuhan, China
| | - Jijia Hu
- Division of Nephrology, Renmin Hospital of Wuhan University, 430060 Wuhan, China; Nephrology and Urology Research Institute of Wuhan University, 430060 Wuhan, China
| | - Zhaowei Chen
- Division of Nephrology, Renmin Hospital of Wuhan University, 430060 Wuhan, China; Nephrology and Urology Research Institute of Wuhan University, 430060 Wuhan, China
| | - Jun Feng
- Division of Nephrology, Renmin Hospital of Wuhan University, 430060 Wuhan, China; Nephrology and Urology Research Institute of Wuhan University, 430060 Wuhan, China
| | - Xueyan Yang
- Division of Nephrology, Renmin Hospital of Wuhan University, 430060 Wuhan, China; Nephrology and Urology Research Institute of Wuhan University, 430060 Wuhan, China
| | - Wei Liang
- Division of Nephrology, Renmin Hospital of Wuhan University, 430060 Wuhan, China; Nephrology and Urology Research Institute of Wuhan University, 430060 Wuhan, China
| | - Guohua Ding
- Division of Nephrology, Renmin Hospital of Wuhan University, 430060 Wuhan, China; Nephrology and Urology Research Institute of Wuhan University, 430060 Wuhan, China.
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29
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Wei X, Wu J, Li J, Yang Q. PLK2 targets GSK3β to protect against cisplatin-induced acute kidney injury. Exp Cell Res 2022; 417:113181. [PMID: 35523306 DOI: 10.1016/j.yexcr.2022.113181] [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: 01/28/2022] [Revised: 04/17/2022] [Accepted: 04/26/2022] [Indexed: 11/16/2022]
Abstract
Cisplatin-induced acute kidney injury (AKI), which is accompanied by a rapid decline in renal function and a high risk of death, is a complex critical illness with no effective or specific treatment. Polo-like kinase 2 (PLK2), a serine/threonine kinase, is involved in the progression of multiple diseases, including cancers, cardiac fibrosis, diabetic nephropathy, etc. Here, by integrating two Gene Expression Omnibus (GEO) datasets of cisplatin-induced AKI animal models, we identified PLK2 as a significantly up-regulated gene in AKI renal tissues, which was then verified in different AKI animal models and cell models. Suppressing PLK2 using siRNAs or inhibitors could enhance cisplatin-induced AKI by inducing severe apoptosis and oxidative stress damage, while enforced PLK2 expression could prevent renal dysfunction induced by cisplatin. We further discovered that PLK2 might phosphorylate glycogen synthase kinase 3β (GSK3β) in the pathogenesis of AKI. In conclusion, our results show that PLK2 play a protective role in cisplatin-induced AKI and may be a new protective target of cisplatin nephrotoxicity.
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Affiliation(s)
- Xiaona Wei
- Department of Nephrology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jianping Wu
- Department of Nephrology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jiajia Li
- Department of Nephrology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiongqiong Yang
- Department of Nephrology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
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30
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Kasuno K, Yodoi J, Iwano M. Urinary Thioredoxin as a Biomarker of Renal Redox Dysregulation and a Companion Diagnostic to Identify Responders to Redox-Modulating Therapeutics. Antioxid Redox Signal 2022; 36:1051-1065. [PMID: 34541903 DOI: 10.1089/ars.2021.0194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Significance: The development and progression of renal diseases, including acute kidney injury (AKI) and chronic kidney disease (CKD), are the result of heterogeneous pathophysiology that reflects a range of environmental factors and, in a lesser extent, genetic mutations. The pathophysiology specific to most kidney diseases is not currently identified; therefore, these diseases are diagnosed based on non-pathological factors. For that reason, pathophysiology-based companion diagnostics for selection of pathophysiology-targeted treatments have not been available, which impedes personalized medicine in kidney disease. Recent Advances: Pathophysiology-targeted therapeutic agents are now being developed for the treatment of redox dysregulation. Redox modulation therapeutics, including bardoxolone methyl, suppresses the onset and progression of AKI and CKD. On the other hand, pathophysiology-targeted diagnostics for renal redox dysregulation are also being developed. Urinary thioredoxin (TXN) is a biomarker that can be used to diagnose tubular redox dysregulation. AKI causes oxidation and urinary excretion of TXN, which depletes TXN from the tubules, resulting in tubular redox dysregulation. Urinary TXN is selectively elevated at the onset of AKI and correlates with the progression of CKD in diabetic nephropathy. Critical Issues: Diagnostic methods should provide information about molecular mechanisms that aid in the selection of appropriate therapies to improve the prognosis of kidney disease. Future Directions: A specific diagnostic method enabling detection of redox dysregulation based on pathological molecular mechanisms is much needed and could provide the first step toward personalized medicine in kidney disease. Urinary TXN is a candidate for a companion diagnostic method to identify responders to redox-modulating therapeutics. Antioxid. Redox Signal. 36, 1051-1065.
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Affiliation(s)
- Kenji Kasuno
- Department of Nephrology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan.,Life Science Innovation Center, University of Fukui, Fukui, Japan
| | - Junji Yodoi
- Institute for Virus Research, Kyoto University, Kyoto, Japan.,Japan Biostress Research Promotion Alliance (JBPA), Kyoto, Japan
| | - Masayuki Iwano
- Department of Nephrology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
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31
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Xu Z, Wang C, He Y, Mao X, Zhang MZ, Hou YP, Li B. Hypoxia-Inducible Factor Protects Against Acute Kidney Injury via the Wnt/β-Catenin Signaling Pathway. Am J Physiol Renal Physiol 2022; 322:F611-F624. [PMID: 35403451 DOI: 10.1152/ajprenal.00023.2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Promoting adaptive repair (AR) in acute kidney injury (AKI) is an effective strategy to preventprogression from AKI to chronic kidney disease (CKD). However, the mechanisms involved in renal repair after AKI remain unclear. In this study, we investigated the role of hypoxia-inducible factor (HIF), an important regulator of ischemic and hypoxic injury, in AKI during the repair phase. We established mouse models of ischemia-reperfusion injury (IRI)-induced AKI with AR or maladaptive repair (MAR). We found that after injury, the activation of HIF in the AR group was rapid, while in the MAR group, HIF activation was relatively delayed, and its expression was significantly lower than that in the AR group during the early repair phase. To further investigate the mechanism of HIF, we regulated the expression of HIF-1α and HIF-2α in HK-2 cells and EA.hy926 cells, respectively. Silencing HIF expression reduced proliferation and increased apoptosis in cells injured by hypoxia/reoxygenation (H/R). Self-healing ability was further reduced due to the downregulation of HIF. Moreover, HIF overexpression had the opposite effect. HIF increased the expression of β-catenin and its downstream target genes. Activation of Wnt/β-catenin by the small molecule activator SKL2001 mitigated the damaging effect of HIF knockdown, while blocking β-catenin with the inhibitor IWR-1-endo reduced the protective effects of HIF. In conclusion, HIF, which is highly expressed in the early stage after AKI, promotes renal repair by interacting with the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- ZhiHui Xu
- Department of Nephrology, 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chang Wang
- Department of Nephrology, 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.,Department of Nephrology, Institute of Nephrology, 2nd Affiliated Hospital of Hainan Medical University, Haikou, China
| | - YiXin He
- Department of Nephrology, 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - XinYue Mao
- Department of Nephrology, Institute of Nephrology, 2nd Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Man-Zhu Zhang
- Department of Nephrology, Institute of Nephrology, 2nd Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Yan-Pei Hou
- Department of Nephrology, 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bing Li
- Department of Nephrology, 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.,Department of Nephrology, Institute of Nephrology, 2nd Affiliated Hospital of Hainan Medical University, Haikou, China
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32
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Zhou F, Yao L, Lu X, Li Y, Han X, Wang P. Therapeutic Targeting of GSK3β-Regulated Nrf2 and NFκB Signaling Pathways by Salvianolic Acid A Ameliorates Peritoneal Fibrosis. Front Med (Lausanne) 2022; 9:804899. [PMID: 35321474 PMCID: PMC8936188 DOI: 10.3389/fmed.2022.804899] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 02/02/2022] [Indexed: 02/06/2023] Open
Abstract
Peritoneal fibrosis is a devastating complication in patients undergoing peritoneal dialysis, with no definite therapy yet available. Salvia miltiorrhiza and its major active component Salvianolic acid A (Sal A) have demonstrated a beneficial effect in myriad diseases. However, their effect on peritoneal fibrosis is unknown. In murine models of peritoneal dialysis, daily Sal A treatment substantially improved the peritoneal dialysis fluid (PDF) elicited peritoneal fibrosis, marked by thickening of the submesothelial compact zone, accumulation of extracellular matrix and increased expression of vimentin and PAI-1, concomitant with attenuation of GSK3β hyperactivity. This coincided with diminished nitrotyrosine in peritoneal tissues and increased Nrf2 nuclear translocation, entailing a lessened oxidative injury and reinforced Nrf2 antioxidant response. Meanwhile, inflammatory infiltration and maladaptive angiogenesis in peritoneal tissues provoked by PDF injury were also mitigated by Sal A, associated with a suppressed NFκB activation. Mechanistically, ectopic expression of the constitutively active GSK3β blunted the NFκB-suppressing and Nrf2-activating efficacy of Sal A in peritoneal mesothelial cells exposed to hypertonic dextrose, suggesting that GSK3β inhibition mediates the protective effect of Sal A. Collectively, our findings may open the avenue for developing a novel therapy based on Sal A for preventing peritoneal fibrosis in peritoneal dialysis.
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Affiliation(s)
- Fan Zhou
- Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Molecular Imaging, Zhengzhou, China
| | - Lan Yao
- Blood Purification Center, Institute of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaoqing Lu
- Blood Purification Center, Institute of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yubao Li
- Blood Purification Center, Institute of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xingmin Han
- Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Molecular Imaging, Zhengzhou, China
| | - Pei Wang
- Blood Purification Center, Institute of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Pei Wang
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Kim MJ, Jeon JH. Recent Advances in Understanding Nrf2 Agonism and Its Potential Clinical Application to Metabolic and Inflammatory Diseases. Int J Mol Sci 2022; 23:ijms23052846. [PMID: 35269986 PMCID: PMC8910922 DOI: 10.3390/ijms23052846] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/26/2022] [Accepted: 03/03/2022] [Indexed: 12/11/2022] Open
Abstract
Oxidative stress is a major component of cell damage and cell fat, and as such, it occupies a central position in the pathogenesis of metabolic disease. Nuclear factor-erythroid-derived 2-related factor 2 (Nrf2), a key transcription factor that coordinates expression of genes encoding antioxidant and detoxifying enzymes, is regulated primarily by Kelch-like ECH-associated protein 1 (Keap1). However, involvement of the Keap1–Nrf2 pathway in tissue and organism homeostasis goes far beyond protection from cellular stress. In this review, we focus on evidence for Nrf2 pathway dysfunction during development of several metabolic/inflammatory disorders, including diabetes and diabetic complications, obesity, inflammatory bowel disease, and autoimmune diseases. We also review the beneficial role of current molecular Nrf2 agonists and summarize their use in ongoing clinical trials. We conclude that Nrf2 is a promising target for regulation of numerous diseases associated with oxidative stress and inflammation. However, more studies are needed to explore the role of Nrf2 in the pathogenesis of metabolic/inflammatory diseases and to review safety implications before therapeutic use in clinical practice.
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Affiliation(s)
- Min-Ji Kim
- Department of Endocrinology in Internal Medicine, Kyungpook National University Hospital, Daegu 41944, Korea;
| | - Jae-Han Jeon
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu 41404, Korea
- Correspondence: ; Tel.: +82-(53)-200-3182; Fax: +82-(53)-200-3155
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He S, Gao Q, Wu X, Shi J, Zhang Y, Yang J, Li X, Du S, Zhang Y, Yu J. NAD + ameliorates endotoxin-induced acute kidney injury in a sirtuin1-dependent manner via GSK-3β/Nrf2 signalling pathway. J Cell Mol Med 2022; 26:1979-1993. [PMID: 35137552 PMCID: PMC8980955 DOI: 10.1111/jcmm.17222] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/11/2022] [Accepted: 01/21/2022] [Indexed: 12/22/2022] Open
Abstract
Acute kidney injury (AKI) is a substantial worldwide public health concern with no specific and effective therapies in clinic. NAD+ is a pivotal determinant of cellular energy metabolism involved in the progression of AKI; however, its mechanism in kidney injury remains poorly understood. Sirtuin 1 (SIRT1) is an NAD+‐dependent deacetylase associated with renal protection and acute stress resistance. In this study, we have investigated the role of NAD+ in AKI and the potential mechanism(s) involved in its renoprotective effect. NAD+ was notably decreased and negatively correlated with kidney dysfunction in AKI, restoring NAD+ with NMN significantly ameliorates LPS‐induced oxidative stress and apoptosis and attenuates renal damage. We also found that the protection of NAD+ is associated with SIRT1 expressions and performs in a SIRT1‐dependent manner. Inhibition of SIRT1 blunted the protective effect of NAD+ and up‐regulated the activity of glycogen synthase kinase‐3β (GSK‐3β) that was concomitant with mitigated Nrf2 nuclear accumulation, thereby exacerbates AKI. These findings suggest that NAD+/SIRT1/GSK‐3β/Nrf2 axis is an important mechanism that can protect against AKI which might be a potential therapeutic target for the treatment of AKI.
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Affiliation(s)
- Simeng He
- School of Medicine, Nankai University, Tianjin, China
| | - Qiaoying Gao
- Tianjin key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin Nankai Hospital, Tianjin, China
| | - Xiaoyang Wu
- School of Medicine, Nankai University, Tianjin, China
| | - Jia Shi
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Yuan Zhang
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Jing Yang
- Tianjin key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin Nankai Hospital, Tianjin, China
| | - Xiangyun Li
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Shihan Du
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Yanfang Zhang
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Jianbo Yu
- School of Medicine, Nankai University, Tianjin, China.,Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
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An C, Jiao B, Du H, Tran M, Zhou D, Wang Y. Myeloid PTEN deficiency aggravates renal inflammation and fibrosis in angiotensin II-induced hypertension. J Cell Physiol 2022; 237:983-991. [PMID: 34515350 PMCID: PMC8810675 DOI: 10.1002/jcp.30574] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 01/03/2023]
Abstract
Hypertension is a major cause of chronic kidney disease. However, the pathogenesis of hypertensive kidney disease is not fully understood. Recently, we have shown that CXCL16/phosphoinositide-3 kinase γ (PI3Kγ) plays an important role in the development of renal inflammation and fibrosis in angiotensin II (AngII) induced hypertensive nephropathy. In the present study, we examined the role of phosphatase and tensin homolog (PTEN), a major regulator of PI3K signaling, in the pathogenesis of renal inflammation and fibrosis in an experimental model of hypertension induced by AngII. We generated myeloid PTEN conditional knockout mice by crossing PTENflox/flox mice with LysM-driven Cre mice. Littermate LysM-Cre-/- PTENflox/flox mice were used as a control. Both myeloid PTEN knockout mice and their littermate control mice exhibited similar blood pressure at baseline. AngII treatment resulted in an increase in blood pressure that was comparable between myeloid PTEN knockout mice and littermate control mice. Compared with littermate control mice, myeloid PTEN knockout mice developed more severe kidney dysfunction, proteinuria, and fibrosis following AngII treatment. Furthermore, myeloid PTEN deficiency exacerbated total collagen deposition and extracellular matrix protein production and enhanced myeloid fibroblast accumulation and myofibroblast formation in the kidney following AngII treatment. Finally, myeloid PTEN deficiency markedly augmented infiltration of F4/80+ macrophages and CD3+ T cells into the kidneys of AngII-treated mice. Taken together, these results indicate that PTEN plays a crucial role in the pathogenesis of renal inflammation and fibrosis through the regulation of infiltration of myeloid fibroblasts, macrophages, and T lymphocytes into the kidney.
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Affiliation(s)
- Changlong An
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Baihai Jiao
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Hao Du
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Melanie Tran
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Dong Zhou
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Yanlin Wang
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA,Department of Cell Biology, University of Connecticut School of Medicine, Farmington, Connecticut, USA,Renal Section, Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut, USA
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Azouz AA, Hanna DA, Abo-Saif AA, Anwar Shehata Messiha B. Interference with megalin expression/endocytic function by montelukast mitigates gentamicin nephrotoxicity: Downregulation of ClC-5 expression. Saudi Pharm J 2022; 30:150-161. [PMID: 35528850 PMCID: PMC9072701 DOI: 10.1016/j.jsps.2021.12.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/27/2021] [Indexed: 10/25/2022] Open
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Gokula V, Terrero D, Joe B. Six Decades of History of Hypertension Research at the University of Toledo: Highlighting Pioneering Contributions in Biochemistry, Genetics, and Host-Microbiota Interactions. Curr Hypertens Rep 2022; 24:669-685. [PMID: 36301488 PMCID: PMC9708772 DOI: 10.1007/s11906-022-01226-0] [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] [Accepted: 09/21/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW The study aims to capture the history and lineage of hypertension researchers from the University of Toledo in Ohio and showcase their collective scientific contributions dating from their initial discoveries of the physiology of adrenal and renal systems and genetics regulating blood pressure (BP) to its more contemporary contributions including microbiota and metabolomic links to BP regulation. RECENT FINDINGS The University of Toledo College of Medicine and Life Sciences (UTCOMLS), previously known as the Medical College of Ohio, has contributed significantly to our understanding of the etiology of hypertension. Two of the scientists, Patrick Mulrow and John Rapp from UTCOMLS, have been recognized with the highest honor, the Excellence in Hypertension award from the American Heart Association for their pioneering work on the physiology and genetics of hypertension, respectively. More recently, Bina Joe has continued their legacy in the basic sciences by uncovering previously unknown novel links between microbiota and metabolites to the etiology of hypertension, work that has been recognized by the American Heart Association with multiple awards. On the clinical research front, Christopher Cooper and colleagues lead the CORAL trials and contributed importantly to the investigations on renal artery stenosis treatment paradigms. Hypertension research at this institution has not only provided these pioneering insights, but also grown careers of scientists as leaders in academia as University Presidents and Deans of Medical Schools. Through the last decade, the university has expanded its commitment to Hypertension research as evident through the development of the Center for Hypertension and Precision Medicine led by Bina Joe as its founding Director. Hypertension being the top risk factor for cardiovascular diseases, which is the leading cause of human mortality, is an important area of research in multiple international universities. The UTCOMLS is one such university which, for the last 6 decades, has made significant contributions to our current understanding of hypertension. This review is a synthesis of this rich history. Additionally, it also serves as a collection of audio archives by more recent faculty who are also prominent leaders in the field of hypertension research, including John Rapp, Bina Joe, and Christopher Cooper, which are cataloged at Interviews .
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Affiliation(s)
- Veda Gokula
- grid.267337.40000 0001 2184 944XCenter for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo College of Medicine and Life Sciences, Block Health Science Building, 3000 Arlington Ave, Toledo, OH 43614-2598 USA
| | - David Terrero
- grid.267337.40000 0001 2184 944XDepartment of Pharmacology and Experimental Therapeutics, College of Pharmacy, University of Toledo, Toledo, OH USA
| | - Bina Joe
- grid.267337.40000 0001 2184 944XCenter for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo College of Medicine and Life Sciences, Block Health Science Building, 3000 Arlington Ave, Toledo, OH 43614-2598 USA
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Molecular Mechanistic Pathways Targeted by Natural Antioxidants in the Prevention and Treatment of Chronic Kidney Disease. Antioxidants (Basel) 2021; 11:antiox11010015. [PMID: 35052518 PMCID: PMC8772744 DOI: 10.3390/antiox11010015] [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: 11/08/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 02/08/2023] Open
Abstract
Chronic kidney disease (CKD) is the progressive loss of renal function and the leading cause of end-stage renal disease (ESRD). Despite optimal therapy, many patients progress to ESRD and require dialysis or transplantation. The pathogenesis of CKD involves inflammation, kidney fibrosis, and blunted renal cellular antioxidant capacity. In this review, we have focused on in vitro and in vivo experimental and clinical studies undertaken to investigate the mechanistic pathways by which these compounds exert their effects against the progression of CKD, particularly diabetic nephropathy and kidney fibrosis. The accumulated and collected data from preclinical and clinical studies revealed that these plants/bioactive compounds could activate autophagy, increase mitochondrial bioenergetics and prevent mitochondrial dysfunction, act as modulators of signaling pathways involved in inflammation, oxidative stress, and renal fibrosis. The main pathways targeted by these compounds include the canonical nuclear factor kappa B (NF-κB), canonical transforming growth factor-beta (TGF-β), autophagy, and Kelch-like ECH-associated protein 1 (Keap1)/nuclear factor erythroid factor 2-related factor 2 (Nrf2)/antioxidant response element (ARE). This review presented an updated overview of the potential benefits of these antioxidants and new strategies to treat or reduce CKD progression, although the limitations related to the traditional formulation, lack of standardization, side effects, and safety.
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Hurtado-Carneiro V, Dongil P, Pérez-García A, Álvarez E, Sanz C. Preventing Oxidative Stress in the Liver: An Opportunity for GLP-1 and/or PASK. Antioxidants (Basel) 2021; 10:antiox10122028. [PMID: 34943132 PMCID: PMC8698360 DOI: 10.3390/antiox10122028] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 02/07/2023] Open
Abstract
The liver’s high metabolic activity and detoxification functions generate reactive oxygen species, mainly through oxidative phosphorylation in the mitochondria of hepatocytes. In contrast, it also has a potent antioxidant mechanism for counterbalancing the oxidant’s effect and relieving oxidative stress. PAS kinase (PASK) is a serine/threonine kinase containing an N-terminal Per-Arnt-Sim (PAS) domain, able to detect redox state. During fasting/feeding changes, PASK regulates the expression and activation of critical liver proteins involved in carbohydrate and lipid metabolism and mitochondrial biogenesis. Interestingly, the functional inactivation of PASK prevents the development of a high-fat diet (HFD)-induced obesity and diabetes. In addition, PASK deficiency alters the activity of other nutrient sensors, such as the AMP-activated protein kinase (AMPK) and the mammalian target of rapamycin (mTOR). In addition to the expression and subcellular localization of nicotinamide-dependent histone deacetylases (SIRTs). This review focuses on the relationship between oxidative stress, PASK, and other nutrient sensors, updating the limited knowledge on the role of PASK in the antioxidant response. We also comment on glucagon-like peptide 1 (GLP-1) and its collaboration with PASK in preventing the damage associated with hepatic oxidative stress. The current knowledge would suggest that PASK inhibition and/or exendin-4 treatment, especially under fasting conditions, could ameliorate disorders associated with excess oxidative stress.
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Affiliation(s)
- Verónica Hurtado-Carneiro
- Department of Physiology, Faculty of Medicine, Institute of Medical Research at the San Carlos Clinic Hospital (IdISSC), Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Institute of Medical Research at the San Carlos Clinic Hospital (IdISSC), Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain; (P.D.); (A.P.-G.); (E.Á.)
- Correspondence:
| | - Pilar Dongil
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Institute of Medical Research at the San Carlos Clinic Hospital (IdISSC), Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain; (P.D.); (A.P.-G.); (E.Á.)
- Department of Cell Biology, Faculty of Medicine, Institute of Medical Research at the San Carlos Clinic Hospital (IdISSC), Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain;
| | - Ana Pérez-García
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Institute of Medical Research at the San Carlos Clinic Hospital (IdISSC), Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain; (P.D.); (A.P.-G.); (E.Á.)
- Department of Cell Biology, Faculty of Medicine, Institute of Medical Research at the San Carlos Clinic Hospital (IdISSC), Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain;
| | - Elvira Álvarez
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Institute of Medical Research at the San Carlos Clinic Hospital (IdISSC), Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain; (P.D.); (A.P.-G.); (E.Á.)
| | - Carmen Sanz
- Department of Cell Biology, Faculty of Medicine, Institute of Medical Research at the San Carlos Clinic Hospital (IdISSC), Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain;
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Yan L. Folic acid-induced animal model of kidney disease. Animal Model Exp Med 2021; 4:329-342. [PMID: 34977484 PMCID: PMC8690981 DOI: 10.1002/ame2.12194] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 02/06/2023] Open
Abstract
The kidneys are a vital organ that is vulnerable to both acute kidney injury (AKI) and chronic kidney disease (CKD) which can be caused by numerous risk factors such as ischemia, sepsis, drug toxicity and drug overdose, exposure to heavy metals, and diabetes. In spite of the advances in our understanding of the pathogenesis of AKI and CKD as well AKI transition to CKD, there is still no available therapeutics that can be used to combat kidney disease effectively, highlighting an urgent need to further study the pathological mechanisms underlying AKI, CKD, and AKI progression to CKD. In this regard, animal models of kidney disease are indispensable. This article reviews a widely used animal model of kidney disease, which is induced by folic acid (FA). While a low dose of FA is nutritionally beneficial, a high dose of FA is very toxic to the kidneys. Following a brief description of the procedure for disease induction by FA, major mechanisms of FA-induced kidney injury are then reviewed, including oxidative stress, mitochondrial abnormalities such as impaired bioenergetics and mitophagy, ferroptosis, pyroptosis, and increased expression of fibroblast growth factor 23 (FGF23). Finally, application of this FA-induced kidney disease model as a platform for testing the efficacy of a variety of therapeutic approaches is also discussed. Given that this animal model is simple to create and is reproducible, it should remain useful for both studying the pathological mechanisms of kidney disease and identifying therapeutic targets to fight kidney disease.
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Affiliation(s)
- Liang‐Jun Yan
- Department of Pharmaceutical SciencesCollege of PharmacyUniversity of North Texas Health Science CenterFort WorthTexasUSA
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Zhang J, Li KY, Liu XY, Tu YY. Up-regulation of VSIG4 alleviates kidney transplantation-associated acute kidney injury through suppressing inflammation and ROS via regulation of AKT signaling. Free Radic Biol Med 2021:S0891-5849(21)00843-1. [PMID: 34856328 DOI: 10.1016/j.freeradbiomed.2021.11.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 02/07/2023]
Abstract
Prolonged cold ischemia (CI) is a risk factor for acute kidney injury (AKI) after kidney transplantation (KT). AKI is an abrupt and rapid reduction in renal function due to multi-factors, including inflammation, oxidative stress and apoptosis. V-set immunoglobulin-domain-containing 4 (VSIG4) is a B7 family-related protein and specifically expressed in resting tissue-resident macrophages to mediate various cellular events. In the study, we attempted to explore the effects of VSIG4 on CI/KT-induced AKI in a mouse model. Our results showed that VSIG4 expression was markedly down-regulated in serum of kidney transplant recipients with acute rejection, and in renal tissues of cold ischemia-reperfusion (IR)-operated mice with AKI, which was confirmed in murine macrophages stimulated by oxygen glucose deprivation/reoxygenation (OGD/R). We then found that exogenous VSIG4 markedly ameliorated histological changes in kidney of CI/KT mice by suppressing inflammation and apoptosis through restraining nuclear factor-κB (NF-κB) and Caspase-3 activation, respectively. Oxidative stress and reactive oxygen species (ROS) accumulation in renal tissues were also mitigated by exogenous VSIG4 in CI/KT mice through improving nuclear factor-erythroid 2 related factor 2 (Nrf2) nuclear expression. The inhibitory effects of VSIG4 on inflammation, ROS generation and cell death were confirmed in OGD/R-treated macrophages, which further ameliorated oxidative damage and apoptosis in podocytes. More in vivo and in vitro studies showed that CI/KT- and OGD/R-induced AKI was further accelerated by VSIG4 knockdown. Mechanistically, VSIG4 directly interacted with AKT, and AKT activation was necessary for VSIG4 to govern all these above mentioned cellular processes. Collectively, our findings demonstrated that VSIG4 could mitigate AKI in a CI/KT mouse model, and we identified VSIG4/AKT axis as a promising therapeutic target for the treatment of the disease.
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Affiliation(s)
- Jie Zhang
- Department of Organ Transplantation, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, China
| | - Kun-Yuan Li
- Department of Organ Transplantation, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, China
| | - Xiao-You Liu
- Department of Organ Transplantation, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, China.
| | - Yan-Yang Tu
- Department of Experimental Surgery, Tangdu Hospital of the Fourth Military Medical University, Xi'an, 710000, China
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Pyrroloquinoline-Quinone Is More Than an Antioxidant: A Vitamin-like Accessory Factor Important in Health and Disease Prevention. Biomolecules 2021; 11:biom11101441. [PMID: 34680074 PMCID: PMC8533503 DOI: 10.3390/biom11101441] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 12/12/2022] Open
Abstract
Pyrroloquinoline quinone (PQQ) is associated with biological processes such as mitochondriogenesis, reproduction, growth, and aging. In addition, PQQ attenuates clinically relevant dysfunctions (e.g., those associated with ischemia, inflammation and lipotoxicity). PQQ is novel among biofactors that are not currently accepted as vitamins or conditional vitamins. For example, the absence of PQQ in diets produces a response like a vitamin-related deficiency with recovery upon PQQ repletion in a dose-dependent manner. Moreover, potential health benefits, such as improved metabolic flexibility and immuno-and neuroprotection, are associated with PQQ supplementation. Here, we address PQQ's role as an enzymatic cofactor or accessory factor and highlight mechanisms underlying PQQ's actions. We review both large scale and targeted datasets demonstrating that a neonatal or perinatal PQQ deficiency reduces mitochondria content and mitochondrial-related gene expression. Data are reviewed that suggest PQQ's modulation of lactate acid and perhaps other dehydrogenases enhance NAD+-dependent sirtuin activity, along with the sirtuin targets, such as PGC-1α, NRF-1, NRF-2 and TFAM; thus, mediating mitochondrial functions. Taken together, current observations suggest vitamin-like PQQ has strong potential as a potent therapeutic nutraceutical.
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Guo C, Ye FX, Jian YH, Liu CH, Tu ZH, Yang DP. MicroRNA-214-5p aggravates sepsis-related acute kidney injury in mice. Drug Dev Res 2021; 83:339-350. [PMID: 34370322 DOI: 10.1002/ddr.21863] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 12/29/2022]
Abstract
Acute kidney injury (AKI) is a devastating comorbidity in sepsis and correlates with a very poor prognosis and increased mortality. Currently, we use lipopolysaccharide (LPS) to establish sepsis-related AKI and try to demonstrate the pathophysiological role of microRNA-214-5p (miR-214-5p) in this process. Mice were intravenously injected with the miR-214-5p agomir, antagomir or negative controls for three consecutive days and then received a single intraperitoneal injection of LPS (10 mg/kg) for 24 h to induce AKI. Besides, the Boston University mouse proximal tubular cell lines were stimulated with LPS (10 μg/ml) for 8 h to investigate the role of miR-214-5p in vitro. To inhibit adenosine monophosphate-activated protein kinase (AMPK), compound C (CpC) was used in vivo. For glucagon-like peptide-1 receptor (GLP-1R) silence, cells were transfected with the small interfering RNA against GLP-1R. miR-214-5p level was upregulated in LPS-treated kidneys and proximal tubular cell lines. The miR-214-5p antagomir reduced LPS-induced renal inflammation and oxidative stress, thereby preventing renal damage and dysfunction. In contrast, the miR-214-5p agomir aggravated LPS-induced inflammation, oxidative stress and AKI in vivo and in vitro. Mechanistically, we found that the miR-214-5p antagomir prevented septic AKI via activating AMPK and that CpC treatment completely abrogated its renoprotective effect in mice. Further detection showed that miR-214-5p directly bound to the 3'-untranslational region of GLP-1R to inhibit GLP-1R/AMPK axis. Our data identify miR-214-5p as a promising therapeutic candidate to treat sepsis-related AKI.
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Affiliation(s)
- Cheng Guo
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Fang-Xiong Ye
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yong-Hong Jian
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Chun-Hua Liu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhi-Hui Tu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ding-Ping Yang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
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Li H, Jiang M, Zhao SY, Zhang SQ, Lu L, He X, Feng GX, Wu X, Fan SJ. Exosomes are involved in total body irradiation-induced intestinal injury in mice. Acta Pharmacol Sin 2021; 42:1111-1123. [PMID: 33637947 PMCID: PMC8209125 DOI: 10.1038/s41401-021-00615-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/15/2021] [Indexed: 12/16/2022] Open
Abstract
Ionizing radiation-induced intestinal injury is a catastrophic complication in patients receiving radiotherapy. Circulating exosomes from patients undergoing radiotherapy can mediate communication between cells and facilitate a variety of pathological processes in vivo, but its effects on ionizing radiation-induced intestinal damage are undetermined. In this study we investigated the roles of exosomes during total body irradiation (TBI)-induced intestinal injury in vivo and in vitro. We isolated exosomes from serum of donor mice 24 h after lethal dose (9 Gy) TBI (Exo-IR-24h), then intravenously injected the exosomes into receipt mice, and found that Exo-IR-24h injection not only exacerbated 9 Gy TBI-induced lethality and weight loss, but also promoted crypt-villus structural and functional injury of the small intestine in receipt mice. Moreover, Exo-IR-24h injection significantly enhanced the apoptosis and DNA damage of small intestine in receipt mice following TBI exposure. In murine intestinal epithelial MODE-K cells, treatment with Exo-IR-24h significantly promoted 4 Gy ionizing radiation-induced apoptosis, resulting in decreased cell vitality. We further demonstrated that Exo-IR-24h promoted the IR-induced injury in receipt mice partially through its DNA damage-promoting effects and attenuating Nrf2 antioxidant response in irradiated MODE-K cells. In addition, TBI-related miRNAs and their targets in the exosomes of mice were enriched functionally using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. Finally, injection of GW4869 (an inhibitor of exosome biogenesis and release, 1.25 mg·kg-1·d-1, ip, for 5 consecutive days starting 3 days before radiation exposure) was able to rescue mice against 9 Gy TBI-induced lethality and intestinal damage. Collectively, this study reveals that exosomes are involved in TBI-induced intestinal injury in mice and provides a new target to protect patients against irradiation-induced intestinal injury during radiotherapy.
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Affiliation(s)
- Hang Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China.
| | - Mian Jiang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Shu-Ya Zhao
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Shu-Qin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Lu Lu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Xin He
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Guo-Xing Feng
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Xin Wu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Sai-Jun Fan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China.
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Non-Coding RNAs in Kidney Diseases: The Long and Short of Them. Int J Mol Sci 2021; 22:ijms22116077. [PMID: 34199920 PMCID: PMC8200121 DOI: 10.3390/ijms22116077] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 02/07/2023] Open
Abstract
Recent progress in genomic research has highlighted the genome to be much more transcribed than expected. The formerly so-called junk DNA encodes a miscellaneous group of largely unknown RNA transcripts, which contain the long non-coding RNAs (lncRNAs) family. lncRNAs are instrumental in gene regulation. Moreover, understanding their biological roles in the physiopathology of many diseases, including renal, is a new challenge. lncRNAs regulate the effects of microRNAs (miRNA) on mRNA expression. Understanding the complex crosstalk between lncRNA–miRNA–mRNA is one of the main challenges of modern molecular biology. This review aims to summarize the role of lncRNA on kidney diseases, the molecular mechanisms involved, and their function as emerging prognostic biomarkers for both acute and chronic kidney diseases. Finally, we will also outline new therapeutic opportunities to diminish renal injury by targeting lncRNA with antisense oligonucleotides.
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Chenxu G, Shaoyu Z, Lili L, Dai X, Kuang Q, Qiang L, Linfeng H, Deshuai L, Jun T, Minxuan X. Betacyanins attenuates diabetic nephropathy in mice by inhibiting fibrosis and oxidative stress via the improvement of Nrf2 signaling. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Chen B, Wang P, Liang X, Jiang C, Ge Y, Dworkin LD, Gong R. Permissive effect of GSK3β on profibrogenic plasticity of renal tubular cells in progressive chronic kidney disease. Cell Death Dis 2021; 12:432. [PMID: 33931588 PMCID: PMC8087712 DOI: 10.1038/s41419-021-03709-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 02/06/2023]
Abstract
Renal tubular epithelial cells (TECs) play a key role in renal fibrogenesis. After persistent injuries that are beyond self-healing capacity, TECs will dedifferentiate, undergo growth arrest, convert to profibrogenic phenotypes, and resort to maladaptive plasticity that ultimately results in renal fibrosis. Evidence suggests that glycogen synthase kinase (GSK) 3β is centrally implicated in kidney injury. However, its role in renal fibrogenesis is obscure. Analysis of publicly available kidney transcriptome database demonstrated that patients with progressive chronic kidney disease (CKD) exhibited GSK3β overexpression in renal tubulointerstitium, in which the predefined hallmark gene sets implicated in fibrogenesis were remarkably enriched. In vitro, TGF-β1 treatment augmented GSK3β expression in TECs, concomitant with dedifferentiation, cell cycle arrest at G2/M phase, excessive accumulation of extracellular matrix, and overproduction of profibrotic cytokines like PAI-1 and CTGF. All these profibrogenic phenotypes were largely abrogated by GSK3β inhibitors or by ectopic expression of a dominant-negative mutant of GSK3β but reinforced in cells expressing the constitutively active mutant of GSK3β. Mechanistically, GSK3β suppressed, whereas inhibiting GSK3β facilitated, the activity of cAMP response element-binding protein (CREB), which competes for CREB-binding protein, a transcriptional coactivator essential for TGF-β1/Smad signaling pathway to drive TECs profibrogenic plasticity. In vivo, in mice with folic acid-induced progressive CKD, targeting of GSK3β in renal tubules via genetic ablation or by microdose lithium mitigated the profibrogenic plasticity of TEC, concomitant with attenuated interstitial fibrosis and tubular atrophy. Collectively, GSK3β is likely a pragmatic therapeutic target for averting profibrogenic plasticity of TECs and improving renal fibrosis.
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Affiliation(s)
- Bohan Chen
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, RI, 02903, USA
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, 43614, USA
| | - Pei Wang
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, RI, 02903, USA
| | - Xianhui Liang
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, RI, 02903, USA
| | - Chunming Jiang
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, RI, 02903, USA
| | - Yan Ge
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, RI, 02903, USA
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, 43614, USA
| | - Lance D Dworkin
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, RI, 02903, USA
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, 43614, USA
| | - Rujun Gong
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, RI, 02903, USA.
- Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, 43614, USA.
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The Keap1-Nrf2 System: A Mediator between Oxidative Stress and Aging. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6635460. [PMID: 34012501 PMCID: PMC8106771 DOI: 10.1155/2021/6635460] [Citation(s) in RCA: 154] [Impact Index Per Article: 51.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 04/05/2021] [Accepted: 04/11/2021] [Indexed: 02/06/2023]
Abstract
Oxidative stress, a term that describes the imbalance between oxidants and antioxidants, leads to the disruption of redox signals and causes molecular damage. Increased oxidative stress from diverse sources has been implicated in most senescence-related diseases and in aging itself. The Kelch-like ECH-associated protein 1- (Keap1-) nuclear factor-erythroid 2-related factor 2 (Nrf2) system can be used to monitor oxidative stress; Keap1-Nrf2 is closely associated with aging and controls the transcription of multiple antioxidant enzymes. Simultaneously, Keap1-Nrf2 signaling is also modulated by a more complex regulatory network, including phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt), protein kinase C, and mitogen-activated protein kinase. This review presents more information on aging-related molecular mechanisms involving Keap1-Nrf2. Furthermore, we highlight several major signals involved in Nrf2 unbinding from Keap1, including cysteine modification of Keap1 and phosphorylation of Nrf2, PI3K/Akt/glycogen synthase kinase 3β, sequestosome 1, Bach1, and c-Myc. Additionally, we discuss the direct interaction between Keap1-Nrf2 and the mammalian target of rapamycin pathway. In summary, we focus on recent progress in research on the Keap1-Nrf2 system involving oxidative stress and aging, providing an empirical basis for the development of antiaging drugs.
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Deng J, Wang X, Zhou Q, Xia Y, Xiong C, Shao X, Zou H. Inhibition of Glycogen Synthase Kinase 3β Alleviates Chronic Renal Allograft Dysfunction in Rats. Transplantation 2021; 105:757-767. [PMID: 32890133 DOI: 10.1097/tp.0000000000003446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Chronic renal allograft dysfunction (CRAD) is a major condition that impedes the long-term survival of renal allografts. However, the mechanism of CRAD is obscure, and the effective strategies for controlling the progression of CRAD are lacking. The present study used a CRAD rat model to assess the effect of glycogen synthase kinase 3β (GSK-3β) inhibition on the development of CRAD. METHODS A classical F334-to-LEW orthotopic renal transplantation was performed on the CRAD group. The treatment group was treated with the GSK-3β inhibitor 4-benzyl-2-methyl-1,2,4-thiadiazolidine-3,5-dione for 12 consecutive weeks following renal transplantation. The study included uninephrectomized F344 and Lewis rats as control subjects. Twelve weeks post surgery, the rats were retrieved for analysis of renal function, urine protein levels, histological, immunohistochemical, and molecular biological parameters. RESULTS Administration of 4-benzyl-2-methyl-1,2,4-thiadiazolidine-3,5-dione inactivated GSK-3β and thereby improved renal function, attenuated proteinuria, and reduced renal tissue damage in CRAD rats. Besides, inactivation of GSK-3β inhibited nuclear factor-κB activation, macrophage infiltration, and expression of multiple proinflammatory cytokines/chemokines. Inhibition of GSK-3β also decreased the levels of malondialdehyde, increased superoxide dismutase levels, upregulated the expression of heme oxygenase-1 and NAD(P)H quinone oxidoreductase-1, and enhanced nuclear translocation of nuclear factor erythroid 2-related factor 2 in the kidneys of CRAD rats. CONCLUSIONS Inhibition of GSK-3β attenuates the development of CRAD by inhibiting inflammation and oxidant stress. Thus, GSK-3β inhibition may represent a potential therapeutic strategy for the prevention and treatment of CRAD.
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Affiliation(s)
- Jin Deng
- Department of Nephrology, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Xin Wang
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Qin Zhou
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Yue Xia
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Chongxiang Xiong
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Xiaofei Shao
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Hequn Zou
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
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Zhou S, Guo J, Zhao L, Liao Y, Zhou Q, Cui Y, Hu W, Chen J, Ren X, Wei Q, Jiang S, Zheng Y, Li L, Wilcox CS, Persson PB, Patzak A, Tian J, Yin Lai E. ADAMTS13 inhibits oxidative stress and ameliorates progressive chronic kidney disease following ischaemia/reperfusion injury. Acta Physiol (Oxf) 2021; 231:e13586. [PMID: 33226724 DOI: 10.1111/apha.13586] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 10/27/2020] [Accepted: 11/20/2020] [Indexed: 12/17/2022]
Abstract
AIMS Reduced A Disintegrin And Metalloproteinase with a ThromboSpondin type 1 motif member 13 (ADAMTS13) levels are observed in kidney disease. We test whether recombinant human ADAMTS13 (rhADAMTS13) mitigates renal injury in chronic kidney disease (CKD) and the potential mechanisms. METHODS CKD was established 3 months after ischaemia/reperfusion (IR). ADAMTS13 and von Willebrand factor (vWF) levels, renal function and morphological changes were analysed. Afferent arteriolar responses to angiotensin II (Ang II) and acetylcholine (ACh) were measured. Oxidative stress-related molecules were detected. RESULTS Higher vWF and lower ADAMTS13 levels were observed in CKD mice, which were markedly attenuated by rhADAMTS13. rhADAMTS13 alleviated renal dysfunction, as documented by decreased blood urea nitrogen (BUN), serum creatinine, kidney injury molecule-1 (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL) levels in CKD mice. Moreover, rhADAMTS13 attenuated transforming growth factor (TGF)-β1/Smad3 activation. Plasma vWF: ADAMTS13 ratio showed positive correlations with malondialdehyde (MDA), hydrogen peroxide (H2 O2 ) and proteinuria, and correlated inversely with superoxide dismutase (SOD) and catalase (CAT). Finally, rhADAMTS13 inhibited reactive oxygen species (ROS) levels and improved microvascular functional disorders, accompanied by the inhibition of glycogen synthase kinase (GSK) 3β hyperactivity and upregulation of nuclear factor erythroid 2-related factor 2 (Nrf2) expression. CONCLUSIONS Acute kidney injury (AKI) reduces the expression of ADAMTS13 that contributes to progressive CKD, microvascular dysfunction, oxidative stress, inhibition of Nrf2 activity and renal histopathological damage. All of which can be alleviated by administration of rhADAMTS13.
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Affiliation(s)
- Suhan Zhou
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Jie Guo
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Liang Zhao
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
- Institute of Vegetative Physiology Charité–Universitätsmedizin Berlincorporate member of Freie Universität BerlinHumboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
- Department of Physiology School of Basic Medical Sciences Guangzhou Medical University Guangzhou China
| | - Yixin Liao
- Department of Obstetrics and Gynecology Nanfang HospitalSouthern Medical University Guangzhou China
| | - Qin Zhou
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Yu Cui
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Weipeng Hu
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Jianghua Chen
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Xiaoqiu Ren
- Department of Radiation Oncology Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Qichun Wei
- Department of Radiation Oncology Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Shan Jiang
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Yali Zheng
- Department of Nephrology Ningxia people’s hospital Yinchuan China
| | - Lingli Li
- Division of Nephrology and Hypertension, and Hypertension Research Center Georgetown University Washington DC USA
| | - Christopher S. Wilcox
- Division of Nephrology and Hypertension, and Hypertension Research Center Georgetown University Washington DC USA
| | - Pontus B. Persson
- Institute of Vegetative Physiology Charité–Universitätsmedizin Berlincorporate member of Freie Universität BerlinHumboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
| | - Andreas Patzak
- Institute of Vegetative Physiology Charité–Universitätsmedizin Berlincorporate member of Freie Universität BerlinHumboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
| | - Jiong Tian
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - En Yin Lai
- Kidney Disease Center of First Affiliated Hospital, and Department of Physiology, School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
- Institute of Vegetative Physiology Charité–Universitätsmedizin Berlincorporate member of Freie Universität BerlinHumboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
- Department of Physiology School of Basic Medical Sciences Guangzhou Medical University Guangzhou China
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