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Wu W, Li Y, He J, Yang J, Liu Y. Resveratrol shields against cisplatin-induced ototoxicity through epigenetic lncRNA GAS5 modulation of miR-455-5p/PTEN pathway. Int Immunopharmacol 2024; 138:112464. [PMID: 38917526 DOI: 10.1016/j.intimp.2024.112464] [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: 04/08/2024] [Revised: 06/06/2024] [Accepted: 06/08/2024] [Indexed: 06/27/2024]
Abstract
BACKGROUND Our previous research demonstrated that resveratrol counters DDP-induced ototoxicity by upregulating miR-455-5p, which targets PTEN. This study aimed to elucidate the underlying mechanisms involving GAS5 and DNA methyltransferase 1 (DNMT1) in resveratrol's protective action. METHODS A luciferase reporter assay and RNA immunoprecipitation (RIP) assay were employed to study the binding between GAS5 and miR-455-5p, as well as between miR-455-5p and PTEN. HEI-OC1 cells treated with DDP were transfected with vectors for GAS5, si-GAS5, DNMT1, si-DNMT1, and miR-455-5p mimics, as well as PTEN. Subsequently, they were treated with resveratrol and exposed to DDP, both separately and in combination. The distribution of CpG islands in the GAS5 promoter was identified using MethyPrimer, and methylation-specific PCR (MSP) was conducted to determine the methylation levels of GAS5. Chromatin immunoprecipitation (ChIP) was utilized to examine the interaction between DNMT1 and GAS5. The viability of HEI-OC1 cells, catalase (CAT) activity, apoptosis, and ROS levels were assessed using the CCK-8 assay, CAT assay, TUNEL staining, and flow cytometry, respectively. An in vivo mouse model was developed to measure auditory brainstem response (ABR) thresholds, while RT-qPCR and Western blot analysis were employed to evaluate molecular levels. RESULTS Our study discovered that GAS5 acts as a sponge for miR-455-5p, thereby increasing PTEN expression in DDP-treated HEI-OC1 cells. This process was reversed upon treatment with resveratrol. Importantly, DNMT1 promoted the methylation of the GAS5 promoter, leading to the suppression of GAS5 expression. This suppression enhanced the effectiveness of resveratrol in combating DDP-induced apoptosis and ROS in HEI-OC1 cells and amplified its protective effect against DDP's ototoxicity in vivo. CONCLUSIONS Our research emphasizes the significance of the DNMT1/GAS5/miR-455-5p/PTEN axis as a promising new route to boost resveratrol's effectiveness against DDP-induced ototoxicity.
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Affiliation(s)
- Wenjin Wu
- Department of Otorhinolaryngology-Head& Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Shanghai Jiaotong University School of Medicine Ear Institute, Shanghai, China; Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Yingru Li
- Department of Otorhinolaryngology-Head& Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Shanghai Jiaotong University School of Medicine Ear Institute, Shanghai, China; Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Jingchun He
- Department of Otorhinolaryngology-Head& Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Shanghai Jiaotong University School of Medicine Ear Institute, Shanghai, China; Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Jun Yang
- Department of Otorhinolaryngology-Head& Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Shanghai Jiaotong University School of Medicine Ear Institute, Shanghai, China; Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Yupeng Liu
- Department of Otorhinolaryngology-Head& Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Shanghai Jiaotong University School of Medicine Ear Institute, Shanghai, China; Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China.
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Liu W, Liang W, Zhang C, Liu H, Li H, Zhou L, Zhou L. LncR-GAS5 decrease in adenine phosphoribosyltransferase expresssion via binding TAF1 to increase kidney damage created by CIH. Heliyon 2024; 10:e33084. [PMID: 38994083 PMCID: PMC11238052 DOI: 10.1016/j.heliyon.2024.e33084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 06/13/2024] [Accepted: 06/13/2024] [Indexed: 07/13/2024] Open
Abstract
Objective Chronic kidney disease (CKD) related to obstructive sleep apnea-hypopnea syndrome (OSAHS) mainly results from chronic intermittent hypoxia (CIH)-induced renal injury. This study aimed to explore the interaction between the long noncoding RNA (lncRNA) growth arrest-specific transcript 5 (GAS5) and recombinant adenine phosphoribosyltransferase (APRT) in CIH-induced renal injury. Methods A rat intermittent hypoxia model was constructed, total RNA was extracted from kidney tissue, and transcriptome sequencing was performed using high-throughput sequencing technology. CIH rat models were established and injected with sh-GAS5 or OE-APRT plasmid, the serum levels of blood urea nitrogen (BUN) and creatinine amidohydrolase were measured, and the expression of oxidative stress-related factors was detected. Hematoxylin and eosin (H&E) and Masson's trichrome staining were used for morphological observations, and cell apoptosis was determined by TUNEL staining. Interactions between GAS5, TATA-box binding protein-associated factor 1 (TAF1), and APRT were predicted and verified. After transfection of HK-2 cells, the expression of GAS5, TAF1, APRT, Bax, Bcl-2, apoptosis-related factors, fibrosis-related factors (collagen I and Ⅳ), and autophagy-related proteins (LC3-Ⅱ, LC3-Ⅰ, p62, and Beclin-1) was measured by RT-qPCR and western blotting. Results Sequencing results revealed that TAF1 was significantly increased and APRT was significantly decreased in the CIH group. RNA was significantly involved in the biological process of kidney injury mediated by CIH. CIH rats injected with GAS5 suppression or APRT overexpression plasmids showed decreased GAS5 and elevated APRT expression, along with suppressed serum levels of BUN and creatinine amidohydrolase. Meanwhile, GAS5 suppression or APRT overexpression attenuated apoptosis and fibrosis, suppressed oxidative stress, and promoted autophagy in CIH-induced renal tubular epithelial cells. The RNA pull-down assay and RIP verified the binding and interaction of GAS5 and TAF1. Chip immunoprecipitation (ChIP) identified TAF1 regulation of the APRT promoter. GAS5 and TAF1 negatively regulated APRT expression. Conclusion The lncRNA GAS5 can bind TAF1 to suppress APRT transcription, thereby enhancing CIH-induced renal injury in rats.
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Affiliation(s)
- Wei Liu
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
- Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Wukaiyang Liang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
- Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - CunTai Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
- Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Huiguo Liu
- Department of Respiratory and Critical Care Medicine, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hai Li
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
- Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Lun Zhou
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
- Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Ling Zhou
- Department of Respiratory and Critical Care Medicine, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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Vijayalalitha R, Archita T, Juanitaa GR, Jayasuriya R, Amin KN, Ramkumar KM. Role of Long Non-Coding RNA in Regulating ER Stress Response to the Progression of Diabetic Complications. Curr Gene Ther 2023; 23:96-110. [PMID: 35927920 DOI: 10.2174/1566523222666220801141450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/08/2022] [Accepted: 04/22/2022] [Indexed: 11/22/2022]
Abstract
Chronic hyperglycemia damages the nerves and blood vessels, culminating in other vascular complications. Such complications enhance cytokine, oxidative and endoplasmic reticulum (ER) stress. ER is the primary organelle where proteins are synthesised and attains confirmatory changes before its site of destination. Perturbation of ER homeostasis activates signaling sensors within its lumen, the unfolded protein response (UPR) that orchestrates ER stress and is extensively studied. Increased ER stress markers are reported in diabetic complications in addition to lncRNA that acts as an upstream marker inducing ER stress response. This review focuses on the mechanisms of lncRNA that regulate ER stress markers, especially during the progression of diabetic complications. Through this systemic review, we showcase the dysfunctional lncRNAs that act as a leading cause of ER stress response to the progression of diabetic complications.
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Affiliation(s)
- Ramanarayanan Vijayalalitha
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Tca Archita
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - George Raj Juanitaa
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Ravichandran Jayasuriya
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Karan Naresh Amin
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Kunka Mohanram Ramkumar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
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Xiang Z, Liqing Y, Qingqing Y, Qiang H, Hongbo C. Retard or exacerbate: Role of long non-coding RNA growth arrest-specific 5 in the fibrosis. Cytokine Growth Factor Rev 2022; 67:89-104. [DOI: 10.1016/j.cytogfr.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 11/26/2022]
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He J, Chen S, Wu X, Jiang D, Li R, Mao Z. Hsa_circ_0081534 facilitates malignant phenotypes by sequestering miR-874-3p and upregulating FMNL3 in nasopharyngeal carcinoma. Auris Nasus Larynx 2022; 49:822-833. [DOI: 10.1016/j.anl.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 02/06/2022] [Accepted: 02/13/2022] [Indexed: 11/24/2022]
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Li X, Sun M, Cheng A, Zheng G. LncRNA GAS5 regulates migration and epithelial-to-mesenchymal transition in lens epithelial cells via the miR-204-3p/TGFBR1 axis. J Transl Med 2022; 102:452-460. [PMID: 34916611 DOI: 10.1038/s41374-021-00713-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 12/19/2022] Open
Abstract
Diabetic cataract (DC) is a major ocular complication secondary to diabetes mellitus. The epithelial-mesenchymal transition (EMT) of lens epithelial cells (LECs) is an important event in DC progression. Long non-coding RNAs (lncRNAs) and microRNAs are involved in various biological processes and disorders. The aim of this study was to investigate the roles of lncRNA growth arrest-specific transcript 5 (GAS5) and microRNA-204-3p (miR-204-3p) deregulation in the pathogenic mechanism of high glucose (HG)-stimulated LECs. The results show that GAS5 was up-regulated, whereas miR-204-3p was down-regulated in anterior lens capsule tissues of DC patients and in HG-treated LECs compared to their controls, respectively. Functional experiments suggest that the lentivirus-mediated depletion of GAS5, as well as overexpression of miR-204-3p, suppressed migration and EMT in HG-treated LECs. Further mechanistic studies revealed that lncRNA GAS5/miR-204-3p/type 1 receptor of transforming growth factor-beta (TGFBR1) has a regulatory role in the process. Collectively, we demonstrated that dysregulation of GAS5 affects lens epithelial cell migration and EMT under HG conditions via the miR-204-3p/TGFBR1 axis. The current findings may provide new insights into the molecular mechanisms of DC development.
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Affiliation(s)
- Xiao Li
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450000, Henan, China
| | - Miaomiao Sun
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450000, Henan, China
| | - Anran Cheng
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450000, Henan, China
| | - Guangying Zheng
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450000, Henan, China.
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Ding M, Tang Z, Liu W, Shao T, Yuan P, Chen K, Zhou Y, Han J, Zhang J, Wang G. Burdock Fructooligosaccharide Attenuates High Glucose-Induced Apoptosis and Oxidative Stress Injury in Renal Tubular Epithelial Cells. Front Pharmacol 2021; 12:784187. [PMID: 34955856 PMCID: PMC8695902 DOI: 10.3389/fphar.2021.784187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/26/2021] [Indexed: 12/17/2022] Open
Abstract
Hyperglycemia-induced apoptosis and oxidative stress injury are thought to play important roles in the pathogenesis of diabetic nephropathy (DN). Attenuating high glucose (HG)-induced renal tubular epithelial cell injury has become a potential approach to ameliorate DN. In recent years, burdock fructooligosaccharide (BFO), a water-soluble inulin-type fructooligosaccharide extracted from burdock root, has been shown to have a wide range of pharmacological activities, including antiviral, anti-inflammatory, and hypolipidemic activities. However, the role and mechanism of BFO in rat renal tubular epithelial cells (NRK-52E cells) have rarely been investigated. The present study investigated the protective effect of BFO on HG-induced damage in NRK-52E cells. BFO could protect NRK-52E cells against the reduced cell viability and significantly increased apoptosis rate induced by HG. These anti-oxidative stress effects of BFO were related to the significant inhibition of the production of reactive oxygen species, stabilization of mitochondrial membrane potential, and increased antioxidant (superoxide dismutase and catalase) activities. Furthermore, BFO increased the expression of Nrf2, HO-1, and Bcl-2 and decreased the expression of Bax. In conclusion, these findings suggest that BFO protects NRK-52E cells against HG-induced damage by inhibiting apoptosis and oxidative stress through the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Mengru Ding
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China
| | - Zhiyan Tang
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China
| | - Wei Liu
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China
| | - Taili Shao
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China.,Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines, Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Wuhu, China.,Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Pingchuan Yuan
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China.,Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines, Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Wuhu, China.,Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Kaoshan Chen
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China.,Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines, Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Wuhu, China.,Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Yuyan Zhou
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China.,Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines, Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Wuhu, China.,Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Jun Han
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China.,Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines, Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Wuhu, China.,Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Jing Zhang
- Department of Nephrology, The First Affiliated Hospital, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Guodong Wang
- Drug Research and Development Center, School of Pharmacy, Wannan Medical College, Wuhu, China.,Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines, Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Wuhu, China.,Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
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Xiao M, Bai S, Chen J, Li Y, Zhang S, Hu Z. CDKN2B-AS1 participates in high glucose-induced apoptosis and fibrosis via NOTCH2 through functioning as a miR-98-5p decoy in human podocytes and renal tubular cells. Diabetol Metab Syndr 2021; 13:107. [PMID: 34649592 PMCID: PMC8518318 DOI: 10.1186/s13098-021-00725-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 09/24/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is the most common causes of end-stage renal disease. Long non-coding RNA cyclin-dependent kinase inhibitor 2B antisense RNA 1 (CDKN2B-AS1) is connected with the development of DN, but the role of CDKN2B-AS1 in DN has not been entirely elucidated. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was carried out to measure CDKN2B-AS1 and miR-98-5p levels. Cell viability, proliferation, and apoptosis were analyzed with 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) or flow cytometry assays. Protein levels were measured by western blotting. The relationship between CDKN2B-AS1 or notch homolog 2 (NOTCH2) and miR-98-5p was verified via dual-luciferase reporter assay. RESULTS CDKN2B-AS1 and NOTCH2 were upregulated in the serum of DN patients and high glucose-disposed human podocytes (HPCs) and human renal tubular cells (HK-2), whereas miR-98-5p was downregulated. High glucose repressed viability and accelerated apoptosis of HPCs and HK-2 cells. CDKN2B-AS1 knockdown impaired high glucose-induced apoptosis and fibrosis of HPCs and HK-2 cells. Mechanistically, CDKN2B-AS1 sponged miR-98-5p to regulate NOTCH2 expression. Also, CDKN2B-AS1 inhibition-mediated effects on apoptosis and fibrosis of high glucose-disposed HPCs and HK-2 cells were weakened by miR-98-5p inhibitor. Also, NOTCH2 knockdown partly reversed miR-98-5p inhibitor-mediated impacts on apoptosis and fibrosis of high glucose-disposed HPCs and HK-2 cells. CONCLUSION High glucose-induced CDKN2B-AS1 promoted apoptosis and fibrosis via the TGF-β1 signaling mediated by the miR-98-5p/NOTCH2 axis in HPCs and HK-2 cells.
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Affiliation(s)
- Min Xiao
- Department of Nephrology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhua West Road, Jinan, 250012, Shandong, China
| | - Shoujun Bai
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated To Fudan University, Shanghai, 201700, China
| | - Jing Chen
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China
| | - Yaxi Li
- Department of Biomedical Engineering, University of Houston, Houston, TX, 77004, USA
| | - Shu Zhang
- Department of Biomedical Engineering, University of Houston, Houston, TX, 77004, USA
| | - Zhao Hu
- Department of Nephrology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhua West Road, Jinan, 250012, Shandong, China.
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Zhang J, Ding J, Yu M, Li F, Zhou X, Shuai H. Long non-coding RNA TTC28-AS1 attenuates high glucose-induced damage in HK-2 cells depending on the regulation of miR-320a/CD2AP axis. Genes Genomics 2021; 43:1471-1482. [PMID: 34623609 DOI: 10.1007/s13258-021-01167-z] [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: 02/24/2021] [Accepted: 09/15/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Diabetic nephropathy (DN) is the leading cause of end-stage renal disease (ESRD) worldwide. Emerging evidence suggests that long non-coding RNAs (lncRNAs) play crucial roles in DN pathogenesis. OBJECTIVE The purpose of the present study was to explore the role and mechanism of lncRNA tetratricopeptide repeat domain 2B antisense RNA 1 (TTC28-AS1) in DN. METHODS Cell viability and apoptosis were assessed by the Cell Counting-8 Kit (CCK-8) assay and flow cytometry, respectively. The levels of TTC28-AS1, miR-320a and CD2-associated protein (CD2AP) were determined by quantitative real-time polymerase chain reaction (qRT-PCR) or western blot. The levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and IL-8 were gauged by enzyme-linked immunosorbent assay (ELISA). Targeted relationship between miR-320a and TTC28-AS1 or CD2AP was evaluated by dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. RESULTS Our data indicated that high glucose (HG) induced HK-2 cell damage by the repression of cell viability and autophagy and the enhancement of cell apoptosis, fibrosis and pro-inflammatory cytokines production. TTC28-AS1 was down-regulated and miR-320a was up-regulated in HG-induced HK-2 cells. TTC28-AS1 overexpression or miR-320a knockdown alleviated HG-induced damage in HK-2 cells. MiR-320 was a molecular mediator of TTC28-AS1 in regulating HG-induced HK-2 cell damage. Moreover, TTC28-AS1 functioned as a post-transcriptional regulator of CD2AP expression by miR-320a. MiR-320a knockdown relieved HG-induced damage in HK-2 cells by up-regulating CD2AP. CONCLUSIONS Our findings suggest that TTC28-AS1 attenuates HG-induced damage in HK-2 cells at least partially by targeting the miR-320a/CD2AP axis, highlighting its role as a promising therapeutic approach for DN treatment.
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Affiliation(s)
- Ji Zhang
- Department of Pharmacology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Juan Ding
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Ming Yu
- Department of General Practice, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Fang Li
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Xue Zhou
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Hongxia Shuai
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China.
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Lv LX, Wen M, Lv F, Ji TB, Fu HL, Man N. Knockdown of long noncoding RNA growth arrest-specific transcript 5 regulates forkhead box O3 to inhibit lipopolysaccharide-induced human bronchial epithelial cell pyroptosis. Kaohsiung J Med Sci 2021; 38:87-96. [PMID: 34529353 DOI: 10.1002/kjm2.12452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 07/14/2021] [Accepted: 08/22/2021] [Indexed: 12/17/2022] Open
Abstract
Pyroptosis is a novel proinflammatory programmed cell death process. This study was designed to investigate the functional mechanisms of long noncoding RNA growth arrest-specific transcript 5 (lncRNA GAS5) on lipopolysaccharide (LPS)-induced human bronchial epithelial cell (HBEC) pyroptosis. LPS was used to induce pyroptosis in HBECs, followed by the detection of the expression of GAS5, forkhead box O3 (FOXO3), and nuclear factor E2-related factor 2/heme oxygenase 1 (Nrf2/HO-1) signaling pathway-related factors. Cell viability was evaluated using CCK-8 assay, lactate dehydrogenase (LDH) release was assessed by LDH assay kit and caspase-1 activity by flow cytometry. Furthermore, expression of NOD-like receptor family pyrin domain containing 3 and pyroptosis-related proteins was evaluated using Western blot analysis, while enzyme-linked immunosorbent assay was used to determine the levels of inflammatory factors. The interaction between GAS5 and FOXO3 was confirmed using bioinformatic prediction, RNA immunoprecipitation assay, RNA pull-down, and dual-luciferase reporter gene assay. Treatment of HBECs with LPS upregulated the expression of GAS5 and FOXO3, resulting in the inactivation of the Nrf2/HO-1 signaling pathway. On the other hand, inhibition of both GAS5 and FOXO3 promoted cell viability, reduced LDH release, pyroptosis, and inflammatory response in LPS-induced HBECs. Furthermore, FOXO3 could interact with GAS5, while FOXO3 overexpression reversed the inhibitory effect of GAS5 knockdown on cell pyroptosis. Thus, mechanistically, inhibition of FOXO3 activates the Nrf2/HO-1 pathway to suppress LPS-induced pyroptosis in HBECs. This study revealed that GAS5 knockdown attenuates FOXO3 expression thereby activating the Nrf2/HO-1 pathway to inhibit LPS-induced pyroptosis in HBECs. These findings may contribute to identifying novel targets that inhibit pyroptosis in HBECs.
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Affiliation(s)
- Ling-Xia Lv
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Mei Wen
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Fei Lv
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Tai-Bing Ji
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Hua-Li Fu
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Ning Man
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
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Abstract
Epigenetics examines heritable changes in DNA and its associated proteins except mutations in gene sequence. Epigenetic regulation plays fundamental roles in kidney cell biology through the action of DNA methylation, chromatin modification via epigenetic regulators and non-coding RNA species. Kidney diseases, including acute kidney injury, chronic kidney disease, diabetic kidney disease and renal fibrosis are multistep processes associated with numerous molecular alterations even in individual kidney cells. Epigenetic alterations, including anomalous DNA methylation, aberrant histone alterations and changes of microRNA expression all contribute to kidney pathogenesis. These changes alter the genome-wide epigenetic signatures and disrupt essential pathways that protect renal cells from uncontrolled growth, apoptosis and development of other renal associated syndromes. Molecular changes impact cellular function within kidney cells and its microenvironment to drive and maintain disease phenotype. In this chapter, we briefly summarize epigenetic mechanisms in four kidney diseases including acute kidney injury, chronic kidney disease, diabetic kidney disease and renal fibrosis. We primarily focus on current knowledge about the genome-wide profiling of DNA methylation and histone modification, and epigenetic regulation on specific gene(s) in the pathophysiology of these diseases and the translational potential of identifying new biomarkers and treatment for prevention and therapy. Incorporating epigenomic testing into clinical research is essential to elucidate novel epigenetic biomarkers and develop precision medicine using emerging therapies.
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Xia W, He Y, Gan Y, Zhang B, Dai G, Ru F, Jiang Z, Chen Z, Chen X. Long Non-coding RNA: An Emerging Contributor and Potential Therapeutic Target in Renal Fibrosis. Front Genet 2021; 12:682904. [PMID: 34386039 PMCID: PMC8353329 DOI: 10.3389/fgene.2021.682904] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/28/2021] [Indexed: 12/19/2022] Open
Abstract
Renal fibrosis (RF) is a pathological process that culminates in terminal renal failure in chronic kidney disease (CKD). Fibrosis contributes to progressive and irreversible decline in renal function. However, the molecular mechanisms involved in RF are complex and remain poorly understood. Long non-coding RNAs (lncRNAs) are a major type of non-coding RNAs, which significantly affect various disease processes, cellular homeostasis, and development through multiple mechanisms. Recent investigations have implicated aberrantly expressed lncRNA in RF development and progression, suggesting that lncRNAs play a crucial role in determining the clinical manifestation of RF. In this review, we comprehensively evaluated the recently published articles on lncRNAs in RF, discussed the potential application of lncRNAs as diagnostic and/or prognostic biomarkers, proposed therapeutic targets for treating RF-associated diseases and subsequent CKD transition, and highlight future research directions in the context of the role of lncRNAs in the development and treatment of RF.
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Affiliation(s)
- Weiping Xia
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Yao He
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Yu Gan
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Bo Zhang
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Guoyu Dai
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Feng Ru
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Zexiang Jiang
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhi Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiang Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
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Srivastava SP, Goodwin JE, Tripathi P, Kanasaki K, Koya D. Interactions among Long Non-Coding RNAs and microRNAs Influence Disease Phenotype in Diabetes and Diabetic Kidney Disease. Int J Mol Sci 2021; 22:ijms22116027. [PMID: 34199672 PMCID: PMC8199750 DOI: 10.3390/ijms22116027] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/21/2021] [Accepted: 05/27/2021] [Indexed: 02/07/2023] Open
Abstract
Large-scale RNA sequencing and genome-wide profiling data revealed the identification of a heterogeneous group of noncoding RNAs, known as long noncoding RNAs (lncRNAs). These lncRNAs play central roles in health and disease processes in diabetes and cancer. The critical association between aberrant expression of lncRNAs in diabetes and diabetic kidney disease have been reported. LncRNAs regulate diverse targets and can function as sponges for regulatory microRNAs, which influence disease phenotype in the kidneys. Importantly, lncRNAs and microRNAs may regulate bidirectional or crosstalk mechanisms, which need to be further investigated. These studies offer the novel possibility that lncRNAs may be used as potential therapeutic targets for diabetes and diabetic kidney diseases. Here, we discuss the functions and mechanisms of actions of lncRNAs, and their crosstalk interactions with microRNAs, which provide insight and promise as therapeutic targets, emphasizing their role in the pathogenesis of diabetes and diabetic kidney disease.
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Affiliation(s)
- Swayam Prakash Srivastava
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06511, USA;
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06511, USA
- Correspondence: or (S.P.S.); (D.K.)
| | - Julie E. Goodwin
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06511, USA;
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Pratima Tripathi
- Department of Biochemistry, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow 226010, India;
| | - Keizo Kanasaki
- Internal Medicine 1, Shimane University Faculty of Medicine, Izumo 693-0021, Japan;
| | - Daisuke Koya
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Ishikawa 920-0293, Japan
- Correspondence: or (S.P.S.); (D.K.)
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Zhuang L, Wang Z, Hu X, Yang Q, Pei X, Jin G. CircHIPK3 Alleviates High Glucose Toxicity to Human Renal Tubular Epithelial HK-2 Cells Through Regulation of miR-326/miR-487a-3p/SIRT1. Diabetes Metab Syndr Obes 2021; 14:729-740. [PMID: 33628038 PMCID: PMC7898210 DOI: 10.2147/dmso.s289624] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/07/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The intervention of circular RNA HIPK3 (circHIPK3) in diabetes has drawn increasing attention in recent years. However, the underlying mechanism of circHIPK3 in diabetic nephropathy (DN) has not been fully elucidated. Thus, the current study aims to investigate the role of circHIPK3 in high glucose (HG)-induced toxicity to human renal tubular epithelial HK-2 cells. METHODS The expression of circHIPK3 in HK-2 cells induced by HG was determined by qRT-PCR and Western blot. The regulatory effects of circHIPK3 and miR-326/miR-487a-3p on cells proliferative and apoptosis were evaluated by CCK-8 and flow cytometry. Dual-luciferase reporter assay was applied to predict the target genes of miR-326 or miR-487a-3p. RESULTS Expression level of circHIPK3 in HK-2 cells was remarkably decreased after the treatment of HG. The overexpression of circHIPK3 effectively reversed the HG-induced HK-2 cell proliferation inhibition and apoptosis. Furthermore, SIRT1 was confirmed to be the target gene of miR-326 and miR-487a-3p, which were showed to be the downstream genes of circHIPK3. The silencing of miR-326 or miR-487a-3p was also proved to induce proliferation and reduce apoptosis in HG-induced HK-2 cells. CONCLUSION Our data suggest that overexpression of circHIPK3 can attenuate the proliferation inhibition of HK-2 induced by HG and inhibit apoptosis through sponging miR-326 or miR-487a-3p to regulate SIRT1.
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Affiliation(s)
- Langen Zhuang
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004Anhui, People’s Republic of China
| | - Ziwei Wang
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004Anhui, People’s Republic of China
| | - Xiaolei Hu
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004Anhui, People’s Republic of China
| | - Qingqing Yang
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004Anhui, People’s Republic of China
| | - Xiaoyan Pei
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004Anhui, People’s Republic of China
| | - Guoxi Jin
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004Anhui, People’s Republic of China
- Correspondence: Guoxi Jin Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, People’s Republic of ChinaTel +86-18096530238 Email
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Guo Y, Li G, Gao L, Cheng X, Wang L, Qin Y, Zhang D. Exaggerated renal fibrosis in lncRNA Gas5-deficient mice after unilateral ureteric obstruction. Life Sci 2021; 264:118656. [PMID: 33121989 DOI: 10.1016/j.lfs.2020.118656] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/12/2020] [Accepted: 10/21/2020] [Indexed: 12/11/2022]
Abstract
AIMS Abnormal expression of long non-coding RNAs (lncRNAs) occurs in several diseases including renal fibrosis. Notably, growth arrest-specific 5 (Gas5) is a lncRNA, which functions as an essential modulator of cell proliferation and growth. However, the role and expression of lncRNA Gas5 associated with renal fibrosis remains controversial. Herein, we investigate the effect of lncRNA Gas5 deficiency in renal fibrosis induced by the operation of unilateral ureteric obstruction (UUO) in mice. MAIN METHODS Sera and urine of mice were used to detect markers of renal function. Further, Masson and immunohistochemical staining, western blotting as well as qRT-PCR were performed to observe the distribution and expression of fibrosis marker in the kidney tissue of the mice. KEY FINDINGS Unlike the wild type mice, the obstructed kidney in Gas5+/- mice showed more severe renal fibrosis and collagen deposition. In the UUO-Gas5+/- group, the serum levels of uric acid, serum creatinine, and the urine levels of albumin-to-creatinine ratio were higher. Moreover, the expression of mRNA and protein of α-smooth muscle actin (α-SMA), vimentin, collagen IV, fibronectin, and matrix metalloproteinase 9 (MMP9) were higher, whereas that of phosphatase and tensin homolog (PTEN) were lower with the difference being statistically significant (p < 0.05). SIGNIFICANCE lncRNA Gas5 was up-regulated in renal fibrosis tissues, and its deficiency exacerbated renal fibrosis in the UUO mice model.
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Affiliation(s)
- Yuqian Guo
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guoxing Li
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Gao
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaocheng Cheng
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Liyou Wang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuhong Qin
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dongying Zhang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Zhang Z, Li X, Chen F, Li Z, Wang D, Ren X, Ma H. Downregulation of LncRNA Gas5 inhibits apoptosis and inflammation after spinal cord ischemia-reperfusion in rats. Brain Res Bull 2020; 168:110-119. [PMID: 33316370 DOI: 10.1016/j.brainresbull.2020.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/22/2020] [Accepted: 12/08/2020] [Indexed: 12/12/2022]
Abstract
Spinal cord ischemia-reperfusion injury(SCII)affects nerve function through many mechanisms, which are complex and not fully understood. Recently, accumulating evidence has indicated that long noncoding RNAs (lncRNAs) play an increasingly important role in SCII. We investigated the role of lncRNA growth arrest-specific 5(Gas5) in a rat SCII model, and its effects on apoptosis and inflammation possibly by modulating MMP-7, cleaved caspase-3 and IL-1β. LncRNA Gas5 and MMP-7 were knocked down by intrathecal siRNA injection. Neurological assessment and TUNEL assay were performed. The RNA and protein expression levels of lncRNA Gas5, MMP-7, cleaved caspase-3 and IL-1β were determined by PCR and Western blotting, respectively. MMP-7 localization was visualized by double-immunofluorescence. SCII induced functional impairment in the hind limb, and the expression of lncRNA Gas5 was highest at 24 h after SCII. LncRNA Gas5 downregulation inhibited the RNA and protein expression of MMP-7, as well as the protein expression of cleaved caspase-3 and IL-1β. LncRNA Gas5 downregulation reduced the number of TUNEL-positive and MMP-7-positive double-labeled cells. Therefore, lncRNA Gas5 downregulation alleviated hind limb functional impairment and improved neuronal apoptosis after SCII. MMP-7 downregulation also inhibited apoptosis and inflammation and alleviated damage. Pretreatment with intrathecal injection of si-lncRNA Gas5 and si-MMP-7 reduced the expression levels of cleaved caspase-3 and IL-1β, protecting nerve function after SCII. These results show that lncRNA Gas5 plays an important role in SCII, perhaps by inhibiting MMP-7, cleaved caspase-3 and IL-1β. LncRNA Gas5 downregulation could be a promising therapeutic approach in the SCII treatment.
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Affiliation(s)
- Zaili Zhang
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Xiaoqian Li
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Fengshou Chen
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Zhe Li
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Dan Wang
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Xiaoyan Ren
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Hong Ma
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
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Xu Y, Fang H, Xu Q, Xu C, Yang L, Huang C. LncRNA GAS5 inhibits NLRP3 inflammasome activation-mediated pyroptosis in diabetic cardiomyopathy by targeting miR-34b-3p/AHR. Cell Cycle 2020; 19:3054-3065. [PMID: 33092444 DOI: 10.1080/15384101.2020.1831245] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Long noncoding RNA GAS5 is down-regulated in cardiomyocytes in diabetic cardiomyopathy (DCM). Here, we studied the involvement of GAS5 in DCM by analyzing its expression in DCM mouse model and cardiac muscle cell line (HL-1 cells). Compared with normal mice, GAS5 was severely down-regulated in heart tissues of DCM mice. GAS5 overexpression improved cardiac function and myocardial hypertrophy in DCM mice. In addition, the expression of NLRP3, caspase-1, Pro-caspase-1, IL-1β and IL-18 were increased in heart tissues of DCM mice and high glucose-treated HL-1 cells, which was repressed by GAS5 up-regulation. GAS5 overexpression suppressed caspase-1 activity, LDH release and the levels of IL-1β, IL-18 in the high glucose-treated HL-1 cells. Moreover, GAS5 regulated AHR expression by sponging miR-34b-3p. Furthermore, GAS5 overexpression suppressed NLRP3 inflammasome activation-mediated pyroptosis by regulating miR-34b-3p/AHR axis. In summary, our study demonstrates that GAS5 acts as a competing endogenous RNA to enhance AHR expression by sponging miR-34b-3p, which consequently represses NLRP3 inflammasome activation-mediated pyroptosis to improve DCM. Thus, our data provide a novel lncRNA GAS5 that could be a valuable target for DCM treatment.
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Affiliation(s)
- Yingying Xu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China
| | - Haiyang Fang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China
| | - Qin Xu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China
| | - Congcong Xu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China
| | - Lu Yang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China
| | - Chahua Huang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China
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Zeng Q, Liu J. Silencing circ_0001879 inhibits the proliferation and migration of human retinal microvascular endothelial cells under high-glucose conditions via modulating miR-30-3p. Gene 2020; 760:144992. [PMID: 32721474 DOI: 10.1016/j.gene.2020.144992] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/06/2020] [Accepted: 07/21/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Diabetic retinopathy is a severe diabetic complication and a major cause of blindness. In this study, we explored the role of circ_0001879 in retinal vascular dysfunction under diabetic conditions. METHODS Human retinal microvascular endothelial cells (HRMECs) were divided into normal glucose group (NG, 5.5 mmol/L d-glucose), high glucose group (HG, 25 mmol/L d-glucose), and osmotic control group (5.5 mmol/L d-glucose + 19.5 mmol/L mannitol). The expression of circ_0001879 and miR-30-3p was assessed via qRT-PCR. The circ_0001879/miR-30-3p roles in retinal vascular dysfunction were investigated through Cell Counting Kit-8 and Transwell assay. Bioinformatics analysis and luciferase reporter assays were applied to examine interactions between circ_0001879 and miR-30-3p in HRMECs. RESULTS The relative circ_0001879 expression was remarkably increased in diabetic retinas group than that in the control group. Silencing circ_0001879 suppressed the proliferation and migration of HRMECs under high-glucose conditions. In addition, circ_0001879 acted as a binding platform and miRNA sponge for miR-30-3p. Circ_0001879 modulated the function of HRMECs via targeting miR-30-3p. CONCLUSION Silencing circ_0001879 inhibited the proliferation and migration of HRMECs under high-glucose conditions via modulating miR-30-3p, which might shed new light on a novel potentially marker and molecular therapeutic target for diabetic retinopathy.
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Affiliation(s)
- Qingshan Zeng
- Clinical Nutrition, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou 510000, China
| | - Jia Liu
- Clinical Nutrition, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou 510000, China.
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Wu L, Wang Q, Guo F, Ma X, Wang J, Zhao Y, Yan Y, Qin G. Involvement of miR-27a-3p in diabetic nephropathy via affecting renal fibrosis, mitochondrial dysfunction, and endoplasmic reticulum stress. J Cell Physiol 2020; 236:1454-1468. [PMID: 32691413 DOI: 10.1002/jcp.29951] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/19/2020] [Accepted: 07/07/2020] [Indexed: 12/16/2022]
Abstract
Diabetic nephropathy (DN) is acknowledged as a serious chronic complication of diabetes mellitus. Nevertheless, its pathogenesis is complicated and unclear. Thus, in this study, the role of miR-27a-3p-prohibitin/TMBIM6 signaling axis in the progression of DN was elucidated. Type 2 diabetic db/db mice and high glucose (HG)-challenged HK-2 cells were used as in vivo and in vitro models. Our results showed that miR-27a-3p was upregulated and prohibitin or transmembrane BAX inhibitor motif containing 6 (TMBIM6) was downregulated in the kidney tissues of db/db mice and HG-treated HK-2 cells. Silencing miR-27a-3p enhanced the expression of prohibitin and TMBIM6 in the kidney tissues and HK-2 cells. Inhibition of miR-27a-3p improved functional injury, as evidenced by decreased blood glucose, urinary albumin, serum creatinine, and blood urea nitrogen levels. MiR-27a-3p silencing ameliorated renal fibrosis, reflected by reduced profibrogenic genes (e.g., transforming growth factor β1, fibronectin, collagen I and III, and α-smooth muscle actin). Furthermore, inhibition of miR-27a-3p relieved mitochondrial dysfunction in the kidney of db/db mice, including upregulation of mitochondrial membrane potential, complex I and III activities, adenosine triphosphate, and mitochondrial cytochrome C, as well as suppressing reactive oxygen species production. In addition, miR-27a-3p silencing attenuated endoplasmic reticulum (ER) stress, reflected by reduced expression of p-IRE1α, p-eIF2α, XBP1s, and CHOP. Mechanically, we identified prohibitin and TMBIM6 as direct targets of miR-27a-3p. Inhibition of miR-27a-3p protected HG-treated HK-2 cells from apoptosis, extracellular matrix accumulation, mitochondrial dysfunction, and ER stress by regulating prohibitin or TMBIM6. Taken together, we reveal that miR-27a-3p-prohibitin/TMBIM6 signaling axis regulates the progression of DN, which can be a potential therapeutic target.
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Affiliation(s)
- Lina Wu
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qingzhu Wang
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Feng Guo
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaojun Ma
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiao Wang
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanyan Zhao
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yushan Yan
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guijun Qin
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Loganathan TS, Sulaiman SA, Abdul Murad NA, Shah SA, Abdul Gafor AH, Jamal R, Abdullah N. Interactions Among Non-Coding RNAs in Diabetic Nephropathy. Front Pharmacol 2020; 11:191. [PMID: 32194418 PMCID: PMC7062796 DOI: 10.3389/fphar.2020.00191] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 02/10/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetic Nephropathy (DN) is the most common cause of End-stage renal disease (ESRD). Although various treatments and diagnosis applications are available, DN remains a clinical and economic burden. Recent findings showed that noncoding RNAs (ncRNAs) play an important role in DN progression, potentially can be used as biomarkers and therapeutic targets. NcRNAs refers to the RNA species that do not encode for any protein, and the most known ncRNAs are the microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs). Dysregulation of these ncRNAs was reported before in DN patients and animal models of DN. Importantly, there are some interactions between these ncRNAs to regulate the crucial steps in DN progression. Here, we aimed to discuss the reported ncRNAs in DN and their interactions with critical genes in DN progression. Elucidating these ncRNAs regulatory network will allow for a better understanding of the molecular mechanisms in DN and how they can act as new biomarkers for DN and also as the potential targets for treatment.
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Affiliation(s)
- Tamil Selvi Loganathan
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Siti Aishah Sulaiman
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Shamsul Azhar Shah
- Department of Community Health, UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Abdul Halim Abdul Gafor
- Nephrology Unit, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Lv J, Wu Y, Mai Y, Bu S. Noncoding RNAs in Diabetic Nephropathy: Pathogenesis, Biomarkers, and Therapy. J Diabetes Res 2020; 2020:3960857. [PMID: 32656264 PMCID: PMC7327582 DOI: 10.1155/2020/3960857] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/27/2020] [Accepted: 05/20/2020] [Indexed: 12/14/2022] Open
Abstract
The correlation between diabetes and systematic well-being on human life has long established. As a common complication of diabetes, the prevalence of diabetic nephropathy (DN) has been increasing globally. DN is known to be a major cause of end-stage kidney disease (ESKD). Till now, the molecular mechanisms for DN have not been fully explored and the effective therapies are still lacking. Noncoding RNAs are a class of RNAs produced by genome transcription that cannot be translated into proteins. It has been documented that ncRNAs participate in the pathogenesis of DN by regulating inflammation, apoptosis, autophagy, cell proliferation, and other pathological processes. In this review, the pathological roles and diagnostic and therapeutic potential of three types of ncRNAs (microRNA, long noncoding RNA, and circular RNA) in the progression of DN are summarized and illustrated.
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Affiliation(s)
- Jiarong Lv
- Diabetes Research Center, Medical School of Ningbo University, Ningbo, 315000 Zhejiang, China
| | - Yu Wu
- Diabetes Research Center, Medical School of Ningbo University, Ningbo, 315000 Zhejiang, China
| | - Yifeng Mai
- The Affiliated Hospital of Medical School of Ningbo University, Ningbo, 315000 Zhejiang, China
| | - Shizhong Bu
- Diabetes Research Center, Medical School of Ningbo University, Ningbo, 315000 Zhejiang, China
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