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Li Z, Shen H, Liu Y, Zhou X, Yan M, He H, Zhao T, Zhang H, Li P. Subproteomic profiling from renal cortices in OLETF rats reveals mutations of multiple novel genes in diabetic nephropathy. Genes Genomics 2021; 44:109-122. [PMID: 34643893 DOI: 10.1007/s13258-021-01174-0] [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: 07/19/2020] [Accepted: 09/29/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Diabetic nephropathy (DN) is a serious threat to human health, but its pathogenesis is not fully understood. Otsuka Long-Evans Tokushima Fatty (OLETF) rats are very similar to human DN in many aspects such as pathological changes and processes, and are deemed to be an ideal rodent model. OBJECTIVE This study was aimed to explore the pathogenesis of DN by analyzing the protein expression profile from renal cortices in OLETF rats. METHODS Thirty-six-week-old diabetic OLETF rats and normal control Long-Evans Tokushima Otsuka (LETO) rats were nephrectomized, and the renal cortices were isolated. The proteins were separated by soluble and insoluble high-resolution subproteomics methods for the analysis and identification of differential proteins. RESULTS Thirty-six differentially expressed proteins were found. Among them, 11 proteins had different isoelectric points and molecular weights between OLETF and LETO rats. Further sequencing identified point mutations in genes encoding eight of these proteins, which are involved in many biological processes closely related to DN, including oxidative stress and inflammation. Five of these eight proteins have not been reported in DN. CONCLUSION This study reveals mutations of multiple novel genes in diabetic OLETF rats, providing some new potential targets for the pathogenesis of DN and helping to better understand the pathogenesis of DN.
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Affiliation(s)
- Zhiguo Li
- Department of School of Public Health, International Science and Technology Cooperation Base of Geriatric Medicine, The Hebei Key Lab for Organ Fibrosis, The Hebei Key Lab for chronic disease, North China University of Science and Technology, Tangshan, 063000, China
| | - Hong Shen
- Department of Modern Technology and Education, North China University of Science and Technology, Tangshan, 063000, China
| | - Yeqiang Liu
- Department of Endocrinology, Kailuan General Hospital, North China University of Science and Technology, Tangshan, 063000, China
| | - Xuefeng Zhou
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, 2 Yinghua East Road, Chaoyang District, Beijing, 100029, People's Republic of China
| | - Meihua Yan
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, 2 Yinghua East Road, Chaoyang District, Beijing, 100029, People's Republic of China
| | - Hailan He
- School of Graduate Studies, North China University of Science and Technology, Tangshan, 063000, China
| | - Tingting Zhao
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, 2 Yinghua East Road, Chaoyang District, Beijing, 100029, People's Republic of China
| | - Haojun Zhang
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, 2 Yinghua East Road, Chaoyang District, Beijing, 100029, People's Republic of China.
| | - Ping Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, 2 Yinghua East Road, Chaoyang District, Beijing, 100029, People's Republic of China.
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Feng Y, Jin MY, Liu DW, Wei L. Bone morphogenetic protein (BMP) 7 expression is regulated by the E3 ligase UBE4A in diabetic nephropathy. Arch Physiol Biochem 2020; 126:416-419. [PMID: 30663414 DOI: 10.1080/13813455.2018.1551905] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Mesangial cells played a central role in the pathophysiology of diabetic nephropathy (DN). Our goal was to evaluate the molecular mechanism that regulates loss of BMP7 protein expression in DN. The mRNA and protein levels of BMP7 or UBE4A were detected using qRT-PCR and Western blot respectively. Mass spectrometry and co-immunoprecipitation were used to explore the E3 ligase which regulated BMP7 post-translationally. We initially confirmed that BMP7 protein, but not mRNA, is downregulated when cultured under high glucose mimicking DN conditions, which was rescued by MG-132 treatment. Proteomic analysis of NRK-52E cells ± MG-132 revealed a list of ubiquitin ligases associated with BMP7. Knockdown of the ubiquitin ligase UBE4A stabilized BMP7 expression in NRK-52E cells grown under high glucose conditions. Concurrent overexpression experiments confirmed that UBE4A is the ubiquitin ligase that degrades BMP7. Co-immunoprecipitation analysis confirmed that BMP7 and UBE4A interact. BMP7 expression in DN is regulated by post-translational mechanism.
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Affiliation(s)
- Ying Feng
- Department of Endocrinology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Ming-Yue Jin
- Department of Endocrinology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Dong-Wei Liu
- Department of Traditional Chinese Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Li Wei
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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3
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Li Z, Liu Y, Zhang H, Pu Z, Wu X, Li P. Effect of fosinopril on the renal cortex protein expression profile of Otsuka Long-Evans Tokushima Fatty rats. Exp Ther Med 2019; 19:172-182. [PMID: 31853288 PMCID: PMC6909786 DOI: 10.3892/etm.2019.8188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 08/23/2019] [Indexed: 12/21/2022] Open
Abstract
Angiotensin-converting enzyme inhibitors (ACEIs) can reduce urinary protein excretion and postpone the deterioration of renal function. However, the mechanisms of renal protection are not yet fully understood. To investigate the mechanisms of ACEIs in the treatment of diabetic nephropathy (DN), the present study determined the effects of the ACEI fosinopril (FP) on the profiling of renal cortex protein expression in Otsuka Long-Evans Tokushima Fatty (OLETF) rats using Long-Evans Tokushima Otsuka (LETO) rats as controls. Urinary protein levels at 24 h were examined using the Broadford method. PAS staining was performed to observe renal histopathological changes. The kidney cortices of OLETF, FP-treated OLETF and LETO rats were examined using soluble and insoluble high-resolution subproteomic analysis methodology at age of 36 and 56 weeks. Differentiated proteins were further confirmed using western blotting analysis. The results demonstrated that FP significantly decreased the glomerulosclerosis index and reduced the 24 h urinary protein excretion of OLETF rats. Additionally, 17 proteins significantly changed following FP-treatment. Amongst these proteins, the abundances of the stress-response protein heat shock protein family A member 9 and the antioxidant glutathione peroxidase 3 were particularly increased. These results indicated that FP ameliorated diabetic renal injuries by inhibiting oxidative stress. In conclusion, the differentially expressed proteins may improve our understanding of the mechanism of ACEIs in the OLETF rats.
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Affiliation(s)
- Zhiguo Li
- Department of Medical Research Center, International Science and Technology Cooperation Base of Geriatric Medicine, North China University of Science and Technology, Tangshan, Hebei 063210, P.R. China
| | - Yeqiang Liu
- Department of Endocrinology, Kailuan General Hospital, Tangshan, Hebei 063000, P.R. China
| | - Haojun Zhang
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Zhijie Pu
- Graduate School, North China University of Science and Technology, Tangshan, Hebei 063000, P.R. China
| | - Xuejing Wu
- Graduate School, North China University of Science and Technology, Tangshan, Hebei 063000, P.R. China
| | - Ping Li
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, P.R. China
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Wang J, Jia X, Meng X, Li Y, Wu W, Zhang X, Xu H, Cui J. Annexin A3 may play an important role in ochratoxin-induced malignant transformation of human gastric epithelium cells. Toxicol Lett 2019; 313:150-158. [PMID: 31276768 DOI: 10.1016/j.toxlet.2019.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 06/24/2019] [Accepted: 07/01/2019] [Indexed: 10/26/2022]
Abstract
Ochratoxin A (OTA), one of the most abundant food-contaminating mycotoxins, is a possible carcinogen to humans. We previously demonstrated that long-term (40 weeks) OTA exposure induces the malignant transformation of human gastric epithelium cells (GES-1) in vitro. However, the specific mechanism underlying OTA-induced gastric carcinogenesis is complex. In the present study, we used 2-DE and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI/TOF MS) combined with bioinformatics and immunoblotting to investigate the differentially expressed proteins between GES-1 and OTA-malignant transformed GES-1 cells (OTA-GES-1T cells) in vitro. We found that four differentially expressed proteins were identified after malignant transformation, including actin, cytoplasmic 1 (ACTB), F-actin-capping protein subunit alpha-1 (CAPZA1), Annexin A3 (ANXA3), thioredoxin peroxidase B from red blood cells (TPx-B) and Fibrinogen beta B (Fibrinogen β). Among the differentially expressed proteins, the effect of Annexin A3 was analyzed by MTT assay, western blot, cell cycle analysis, wound healing assay, Transwell assay, and colony formation assay in OTA-GES-1T cells. The results showed that inhibition of Annexin A3 by siRNA effectively prevented the proliferation, migration, and invasion abilities of OTA-GES-1T cells. Collectively, the results of this study will guide future research on OTA carcinogenicity.
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Affiliation(s)
- Juan Wang
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Xin Jia
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Xinxing Meng
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Yuehong Li
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Wenxin Wu
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Xianghong Zhang
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Hong Xu
- Medical Research Center, North China University of Science and Technology, Tangshan, China
| | - Jinfeng Cui
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China.
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Proteasome subunit-α type-6 protein is post-transcriptionally repressed by the microRNA-4490 in diabetic nephropathy. Biosci Rep 2018; 38:BSR20180815. [PMID: 30287505 PMCID: PMC6209586 DOI: 10.1042/bsr20180815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 08/07/2018] [Accepted: 09/25/2018] [Indexed: 12/12/2022] Open
Abstract
A common complication of both type I and type II diabetes is nephropathy, characterized by accumulation of extracellular matrix in the glomerular mesangium. This indicates a central role of mesangial cells in the pathophysiology of diabetic nephropathy. Using the proteomic approach, it was earlier elucidated in a rat model that the proteasome subunit-α type-6 protein (PSMA6) is suppressed in the renal cortex in nephropathic kidney. However, the underlying mechanism effecting suppression of PSMA6 protein in the renal cortex is not yet known. Twenty diabetic patients were enrolled and the expression level of PSMA6 in them was detected by immunohistochemistry. The protein and mRNA expression levels of PSMA6 in NRK-52E cells under high glucose condition were determined by Western blot and quantitative real-time PCR, respectively. Dual luciferase assay was used to detect the relationship of PSMA6 and miR-4490. Our results show that PSMA6 protein is down-regulated in patients with diabetic nephropathy compared with healthy control. Using the NRK-52E cell line cultured under high glucose condition as an in vitro model of diabetic nephropathy, we show that loss of PSMA6 protein expression occured independent of changes the in PSMA6 mRNA expression. We next elucidate that PSMA6 mRNA is post-transcriptionally regulated by the microRNA (miRNA)-4490, whose expression is inversely correlated to PSMA6 protein expression. Using reporter assays we show that PSMA6 is a direct target of the miR-4490. Exogenous manipulation of miR-4490 levels modulated expression of PSMA6, indicating that miR-4490 can be tested as a biomarker for nephropathy in diabetic patients.
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6
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Yi J, Yuan Y, Zheng J, Hu N. Hydrogen sulfide alleviates uranium-induced kidney cell apoptosis mediated by ER stress via 20S proteasome involving in Akt/GSK-3β/Fyn-Nrf2 signaling. Free Radic Res 2018; 52:1020-1029. [DOI: 10.1080/10715762.2018.1514603] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Juan Yi
- School of Pharmaceutical and Biological Science, Institute of Biology, University of South China, Hengyang, China
| | - Yan Yuan
- School of Pharmaceutical and Biological Science, Institute of Biology, University of South China, Hengyang, China
| | - Jifang Zheng
- School of Pharmaceutical and Biological Science, Institute of Biology, University of South China, Hengyang, China
| | - Nan Hu
- School of Pharmaceutical and Biological Science, Institute of Biology, University of South China, Hengyang, China
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7
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Aluksanasuwan S, Khamchun S, Thongboonkerd V. Targeted functional investigations guided by integrative proteome network analysis revealed significant perturbations of renal tubular cell functions induced by high glucose. Proteomics 2017; 17. [DOI: 10.1002/pmic.201700151] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/09/2017] [Accepted: 06/23/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Siripat Aluksanasuwan
- Medical Proteomics Unit, Office for Research and Development; and Graduate Program in Immunology, Department of Immunology, Faculty of Medicine Siriraj Hospital; and Center for Research in Complex Systems Science; Mahidol University; Bangkok Thailand
| | - Supaporn Khamchun
- Medical Proteomics Unit, Office for Research and Development; and Graduate Program in Immunology, Department of Immunology, Faculty of Medicine Siriraj Hospital; and Center for Research in Complex Systems Science; Mahidol University; Bangkok Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Office for Research and Development; and Graduate Program in Immunology, Department of Immunology, Faculty of Medicine Siriraj Hospital; and Center for Research in Complex Systems Science; Mahidol University; Bangkok Thailand
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Aluksanasuwan S, Sueksakit K, Fong-Ngern K, Thongboonkerd V. Role of HSP60 (HSPD1) in diabetes-induced renal tubular dysfunction: regulation of intracellular protein aggregation, ATP production, and oxidative stress. FASEB J 2017; 31:2157-2167. [PMID: 28196897 DOI: 10.1096/fj.201600910rr] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 01/23/2017] [Indexed: 12/28/2022]
Abstract
Because underlying mechanisms of diabetic nephropathy/tubulopathy remained poorly understood, we aimed to define a key protein involving in hyperglycemia-induced renal tubular dysfunction. All altered renal proteins identified from previous large-scale proteome studies were subjected to global protein network analysis, which revealed heat shock protein 60 (HSP60, also known as HSPD1) as the central node of protein-protein interactions. Functional validation was performed using small interfering RNA (siRNA) to knock down HSP60 (siHSP60). At 48 h after exposure to high glucose (HG) (25 mM), Madin-Darby canine kidney (MDCK) renal tubular cells transfected with controlled siRNA (siControl) had significantly increased level of HSP60 compared to normal glucose (NG) (5.5 mM), whereas siHSP60-transfected cells showed a dramatically decreased HSP60 level. siHSP60 modestly increased intracellular protein aggregates in both NG and HG conditions. Luciferin-luciferase assay showed that HG modestly increased intracellular ATP, and siHSP60 further enhanced such an increase. OxyBlot assay showed significantly increased level of oxidized proteins in HG-treated siControl-transfected cells, whereas siHSP60 caused marked increase of oxidized proteins under the NG condition. However, the siHSP60-induced accumulation of oxidized proteins was abolished by HG. In summary, our data demonstrated that HSP60 plays roles in regulation of intracellular protein aggregation, ATP production, and oxidative stress in renal tubular cells. Its involvement in HG-induced tubular cell dysfunction was most likely via regulation of intracellular ATP production.-Aluksanasuwan, S., Sueksakit, K., Fong-ngern, K., Thongboonkerd, V. Role of HSP60 (HSPD1) in diabetes-induced renal tubular dysfunction: regulation of intracellular protein aggregation, ATP production, and oxidative stress.
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Affiliation(s)
- Siripat Aluksanasuwan
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.,Center for Research in Complex Systems Science, Mahidol University, Bangkok, Thailand
| | - Kanyarat Sueksakit
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.,Center for Research in Complex Systems Science, Mahidol University, Bangkok, Thailand
| | - Kedsarin Fong-Ngern
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.,Center for Research in Complex Systems Science, Mahidol University, Bangkok, Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; .,Center for Research in Complex Systems Science, Mahidol University, Bangkok, Thailand
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Acetylated α-Tubulin Regulated by N-Acetyl-Seryl-Aspartyl-Lysyl-Proline(Ac-SDKP) Exerts the Anti-fibrotic Effect in Rat Lung Fibrosis Induced by Silica. Sci Rep 2016; 6:32257. [PMID: 27577858 PMCID: PMC5006047 DOI: 10.1038/srep32257] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 08/04/2016] [Indexed: 12/17/2022] Open
Abstract
Silicosis is the most serious occupational disease in China. The objective of this study was to screen various proteins related to mechanisms of the pathogenesis of silicosis underlying the anti-fibrotic effect of N-acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP) using proteomic profile analysis. We also aimed to explore a potential mechanism of acetylated α-tubulin (α-Ac-Tub) regulation by Ac-SDKP. Two-dimensional electrophoresis (2-DE) and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF/TOF MS) were used to assess the different protein expression profiles between control and silicosis rats treated with or without Ac-SDKP. Twenty-nine proteins were identified to be potentially involved in the progression of silicosis and the anti-fibrotic effect of Ac-SDKP. Our current study finds that 1) the lost expression of Ac-Tub-α may be a new mechanism in rat silicosis; 2) treatment of silicotic rats with N-acetyl-Seryl-Aspartyl-Lysyl-Proline (Ac-SDKP) inhibits myofibroblast differentiation and collagen deposition accompanied by stabilizing the expression of α-Ac-Tub in vivo and in vitro, which is related with deacetylase family member 6 (HDAC6) and α-tubulin acetyl transferase (α-TAT1). Our data suggest that α-Ac-Tub regulation by Ac-SDKP may potentially be a new anti-fibrosis mechanism.
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Sjakste T, Paramonova N, Osina K, Dokane K, Sokolovska J, Sjakste N. Genetic variations in the PSMA3, PSMA6 and PSMC6 genes are associated with type 1 diabetes in Latvians and with expression level of number of UPS-related and T1DM-susceptible genes in HapMap individuals. Mol Genet Genomics 2015; 291:891-903. [PMID: 26661414 DOI: 10.1007/s00438-015-1153-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 11/28/2015] [Indexed: 01/04/2023]
Abstract
The ubiquitin-proteasome system (UPS), a key player of proteostasis network in the body, was implicated in type 1 diabetes mellitus (T1DM) pathogenesis. Polymorphisms in genes encoding proteasome subunits may potentially affect system efficiency. However, data in this field are still limited. To fulfil this gap, single nucleotide polymorphisms in the PSMB5 (rs11543947), PSMA6 (rs2277460, rs1048990), PSMC6 (rs2295826, rs2295827) and PSMA3 (rs2348071) genes were genotyped on susceptibility to T1DM in Latvians. The rs11543947 was found to be neutral and other loci manifested disease susceptibility, with rs1048990 and rs2348071 being the most significantly associated (P < 0.001; OR 2.042 [1.376-3.032] and OR 2.096 [1.415-3.107], respectively). Risk effect was associated with female phenotype for rs2277460 and family history for rs2277460, rs2295826 and rs2295827. Five-locus genotypes being at risk simultaneously at any two or more loci showed strong (P < 0.0001) T1DM association. The T1DM protective effects (P < 0.001) were shown for five-locus genotype and haplotype homozygous on common alleles and composed of common alleles, respectively. Using SNPexp data set, correlations have been revealed between the rs1048990, rs2295826, rs2295827 and rs2348071 T1DM risk genotypes and expression levels of 14 genes related to the UPS and 42 T1DM-susceptible genes encoding proteins involved in innate and adaptive immunity, antiviral response, insulin signalling, glucose-energy metabolism and other pathways implicated in T1DM pathogenesis. Genotype-phenotype and genotype-genotype clusterings support genotyping results. Our results provide evidence on new T1DM-susceptible loci in the PSMA3, PSMA6 and PSMC6 proteasome genes and give a new insight into the T1DM pathogenesis.
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Affiliation(s)
- Tatjana Sjakste
- Genomics and Bioinformatics, Institute of Biology of the University of Latvia, Salaspils, Latvia.
| | - Natalia Paramonova
- Genomics and Bioinformatics, Institute of Biology of the University of Latvia, Salaspils, Latvia
| | - Kristine Osina
- Genomics and Bioinformatics, Institute of Biology of the University of Latvia, Salaspils, Latvia
| | - Kristine Dokane
- Genomics and Bioinformatics, Institute of Biology of the University of Latvia, Salaspils, Latvia
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11
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Ošiņa K, Rostoka E, Sokolovska J, Paramonova N, Bisenieks E, Duburs G, Sjakste N, Sjakste T. 1,4-Dihydropyridine derivatives without Ca2+-antagonist activity up-regulate Psma6 mRNA expression in kidneys of intact and diabetic rats. Cell Biochem Funct 2015; 34:3-6. [PMID: 26634809 DOI: 10.1002/cbf.3160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 11/12/2015] [Accepted: 11/16/2015] [Indexed: 12/26/2022]
Abstract
Impaired degradation of proteins by the ubiquitin-proteasome system (UPS) is observed in numerous pathologies including diabetes mellitus (DM) and its complications. Dysregulation of proteasomal degradation might be because of altered expression of genes and proteins involved in the UPS. The search for novel compounds able to normalize expression of the UPS appears to be a topical problem. A novel group of 1,4-dihydropyridine (1,4-DHP) derivatives lacking Ca2+-antagonists activities, but capable to produce antidiabetic, antioxidant and DNA repair enhancing effects, were tested for ability to modify Psma6 mRNA expression levels in rat kidneys and blood in healthy animals and in rats with streptozotocin (STZ) induced DM. Psma6 gene was chosen for the study, as polymorphisms of its human analogue are associated with DM and cardiovascular diseases. 1,4-DHP derivatives (metcarbatone, etcarbatone, glutapyrone, J-9-125 and AV-153-Na) were administered per os for three days (0.05 mg/kg and/or 0.5 mg/kg). Psma6 gene expression levels were evaluated by quantitative PCR. Psma6 expression was higher in kidneys compared to blood. Induction of diabetes caused increase of Psma6 expression in kidneys, although it was not changed in blood. Several 1,4-DHP derivatives increased expression of the gene both in kidneys and blood of control and model animals, but greater impact was observed in kidneys. The observed effect might reflect coupling of antioxidant and proteolysis-promoting activities of the compounds.
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Affiliation(s)
- Kristīne Ošiņa
- Genomics and Bioinformatics Group, Institute of Biology of the University of Latvia, Salaspils, Latvia
| | - Evita Rostoka
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | | | - Natalia Paramonova
- Genomics and Bioinformatics Group, Institute of Biology of the University of Latvia, Salaspils, Latvia
| | | | - Gunars Duburs
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | | | - Tatjana Sjakste
- Genomics and Bioinformatics Group, Institute of Biology of the University of Latvia, Salaspils, Latvia
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12
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Rinschen MM, Benzing T, Limbutara K, Pisitkun T. Proteomic analysis of the kidney filtration barrier--Problems and perspectives. Proteomics Clin Appl 2015; 9:1053-68. [PMID: 25907645 DOI: 10.1002/prca.201400201] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/21/2015] [Accepted: 04/20/2015] [Indexed: 12/12/2022]
Abstract
Diseases of the glomerular filter of the kidney are a leading cause of end-stage renal failure. The kidney filter is localized within the renal glomeruli, small microvascular units that are responsible for ultrafiltration of about 180 liters of primary urine every day. The renal filter consists of three layers, fenestrated endothelial cells, glomerular basement membrane, and the podocytes, terminally differentiated, arborized epithelial cells. This review demonstrates the use of proteomics to generate insights into the regulation of the renal filtration barrier at a molecular level. The advantages and disadvantages of different glomerular purification methods are examined, and the technical limitations that have been significantly improved by in silico or biochemical approaches are presented. We also comment on phosphoproteomic studies that have generated considerable molecular-level understanding of the physiological regulation of the kidney filter. Lastly, we conclude with an analysis of urinary exosomes as a potential filter-derived resource for the noninvasive discovery of glomerular disease mechanisms.
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Affiliation(s)
- Markus M Rinschen
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.,Systems Biology of Ageing Cologne (Sybacol), University of Cologne, Cologne, Germany
| | - Thomas Benzing
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.,Systems Biology of Ageing Cologne (Sybacol), University of Cologne, Cologne, Germany
| | - Kavee Limbutara
- Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Trairak Pisitkun
- Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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13
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Sharma V, Tikoo K. Stage-specific quantitative changes in renal and urinary proteome during the progression and development of streptozotocin-induced diabetic nephropathy in rats. Mol Cell Biochem 2013; 388:95-111. [PMID: 24281856 DOI: 10.1007/s11010-013-1902-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/15/2013] [Indexed: 12/31/2022]
Abstract
Diabetic nephropathy (DN) is a microvascular complication associated with diabetes causing slow deterioration of kidneys leading to end-stage renal disease. Timely intervention and diagnosis are crucial in order to ameliorate and halt the progression of DN. Current diagnosis of DN consists of urine assays for detection of microalbuminuria, which have inadequate specificity and sensitivity. Hence, there arises a need to discover stage-specific biomarkers which can aid in the early detection of DN and also in identifying the mechanisms underlying pathogenesis of DN. Therefore the present study was undertaken to identify the differentially expressed proteins in the urine and to examine the pattern of proteomic changes occurring in the rat kidneys during the course of progression of streptozotocin-induced model of DN in rats. Two-dimensional gel electrophoresis coupled to MALDI-TOF mass spectrometry was employed to identify the differentially expressed proteins under diabetic conditions. Among the identified proteins Calgranulin A and Calgranulin B appeared in the urinary proteome at the fourth week of induction of diabetes while we recorded a time-dependent decrease in the expression of major urinary protein (alpha 2u globulin) in the urine as well as kidneys of diabetic rats. Parallel monitoring of targeted proteomic changes in the renal proteome revealed an increase in histone H2B phosphorylation at serine14 along with a gradual decrease in Bcl-2 and MMP-13 expression during the course of progression and development of streptozotocin-induced DN.
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Affiliation(s)
- Vikram Sharma
- Laboratory of Chromatin Biology, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali, 160 062, Punjab, India,
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14
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Ko YM, Chang CY, Chiou SJ, Hsu FJ, Huang JS, Yang YL, Guh JY, Chuang LY. Ubiquitin C-terminal hydrolase-L5 is required for high glucose-induced transforming growth factor-β receptor I expression and hypertrophy in mesangial cells. Arch Biochem Biophys 2013; 535:177-86. [DOI: 10.1016/j.abb.2013.03.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 02/06/2013] [Accepted: 03/04/2013] [Indexed: 11/16/2022]
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15
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Liu X, Fan Q, Yang G, Liu N, Chen D, Jiang Y, Wang L. Isolating glomeruli from mice: A practical approach for beginners. Exp Ther Med 2013; 5:1322-1326. [PMID: 23737872 PMCID: PMC3671739 DOI: 10.3892/etm.2013.1000] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 02/26/2013] [Indexed: 12/29/2022] Open
Abstract
A modified procedure for Dynabead perfusion was developed to provide a practical methodology for obtaining large quantities of glomeruli from mice with a high purity. The glomeruli may be useful in exploring the mechanism behind glomerular diseases in conjunction with proteomics. The aim of the study was to save on costs and help researchers, particularly beginners, in the practical application of this method in their studies. Kidneys of C57BL/6 mice were perfused via two different techniques with Dynabeads. The purity and structures of the isolated glomeruli were investigated. The amounts of glomerular protein were measured and the costs of kidney and heart perfusions were compared. There was a 100% success rate at all stages involved in separating the glomeruli of mice via kidney perfusion. The isolated glomeruli remained intact and the purity was 96.7±1.2%. The average amounts of protein in the isolated glomeruli of 8- and 20-week-old mice were 45.6±13.4 and 55.8±17.0 μg, respectively. The cost of glomerular isolation via kidney perfusion was one-fortieth of the cost of isolation via heart perfusion. The described procedure is practical and has a high success rate. The isolated glomeruli of mice were intact and pure and a large quantity was obtained at a lower cost.
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Affiliation(s)
- Xiaodan Liu
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
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16
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Starkey JM, Tilton RG. Proteomics and systems biology for understanding diabetic nephropathy. J Cardiovasc Transl Res 2012; 5:479-90. [PMID: 22581264 DOI: 10.1007/s12265-012-9372-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 05/01/2012] [Indexed: 01/07/2023]
Abstract
Like many diseases, diabetic nephropathy is defined in a histopathological context and studied using reductionist approaches that attempt to ameliorate structural changes. Novel technologies in mass spectrometry-based proteomics have the ability to provide a deeper understanding of the disease beyond classical histopathology, redefine the characteristics of the disease state, and identify novel approaches to reduce renal failure. The goal is to translate these new definitions into improved patient outcomes through diagnostic, prognostic, and therapeutic tools. Here, we review progress made in studying the proteomics of diabetic nephropathy and provide an introduction to the informatics tools used in the analysis of systems biology data, while pointing out statistical issues for consideration. Novel bioinformatics methods may increase biomarker identification, and other tools, including selective reaction monitoring, may hasten clinical validation.
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Affiliation(s)
- Jonathan M Starkey
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555-1060, USA
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17
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Park HY, Kim JH, Jung M, Chung CH, Hasham R, Park CS, Choi EH. A long-standing hyperglycaemic condition impairs skin barrier by accelerating skin ageing process. Exp Dermatol 2011; 20:969-74. [DOI: 10.1111/j.1600-0625.2011.01364.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Prunotto M, Ghiggeri G, Bruschi M, Gabbiani G, Lescuyer P, Hocher B, Chaykovska L, Berrera M, Moll S. Renal fibrosis and proteomics: current knowledge and still key open questions for proteomic investigation. J Proteomics 2011; 74:1855-70. [PMID: 21642026 DOI: 10.1016/j.jprot.2011.05.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 04/27/2011] [Accepted: 05/22/2011] [Indexed: 12/25/2022]
Abstract
Renal tubulo-interstitial fibrosis is a non-specific process, representing the final common pathway for all kidney diseases, irrespective of their initial cause, histological injury, or etiology, leading to gradual expansion of the fibrotic mass which destroys the normal structure of the tissue and results in organ dysfunction and, ultimately, in end-stage organ failure. Proteomic studies of the fibrotic pathophysiological mechanisms have been performed in cell cultures, animal models and human tissues, addressing some of the key issues. This article will review proteomic contribution to the raising current knowledge on renal fibrosis biology and also mention seminal open questions to which proteomic techniques and proteomists could fruitfully contribute.
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Affiliation(s)
- Marco Prunotto
- RenalChild Foundation, G. Gaslini Children Hospital, Genoa, Italy.
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19
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Zhang W, Wei Q. Calcineurin stimulates the expression of inflammatory factors in RAW 264.7 cells by interacting with proteasome subunit alpha type 6. Biochem Biophys Res Commun 2011; 407:668-73. [PMID: 21420386 DOI: 10.1016/j.bbrc.2011.03.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2011] [Accepted: 03/16/2011] [Indexed: 12/21/2022]
Abstract
Calcineurin is the only Ca(2+)-dependent serine/threonine-specific protein phosphatase and is considered a potential regulator of many intracellular signaling events. In this study we identified a novel interaction between calcineurin and the 20S proteasome subunit PSMA6 that increased intracellular proteasomal activity. Using RAW 264.7 macrophage cells, we demonstrated that expression of inflammatory factors was induced by calcineurin, and suppressed by the calcineurin inhibitor FK506. We also found that these calcineurin-activated processes result from activation of NF-κB, and that the interaction of calcineurin with PSMA6 stimulates transcription by NF-κB via degradation of IκB by the ubiquitin-proteasome pathway. These findings indicate that calcineurin is required for expression of inflammatory factors, and reveal a novel process of calcineurin-mediated activation of NF-κB.
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Affiliation(s)
- Wen Zhang
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Beijing Key Laboratory, Beijing 100875, China
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