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Zhang L, Jin G, Zhang W, Wang Q, Liang Y, Dong Q. CircRNA Arf3 suppresses glomerular mesangial cell proliferation and fibrosis in diabetic nephropathy via miR-107-3p/Tmbim6 axis. J Bioenerg Biomembr 2024:10.1007/s10863-024-10027-w. [PMID: 39120858 DOI: 10.1007/s10863-024-10027-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/29/2024] [Indexed: 08/10/2024]
Abstract
Diabetic nephropathy (DN) is one of microvascular complication associated with diabetes. Circular RNAs (circRNAs) have been shown to be involved in DN pathogenesis. Hence, this work aimed to explore the role and mechanism of circ_Arf3 in DN. Mouse mesangial cells (MCs) cultured in high glucose (HG) condition were used for functional analysis. Cell proliferation was determined using 5-ethynyl-2'-deoxyuridine (EdU) and cell counting kit-8 assays. Western blotting was used to measure the levels of proliferation indicator PCNA and fibrosis-related proteins α-smooth muscle actin (α-SMA), collagen I (Col I), fibronectin (FN), and collagen IV (Col IV). The binding interaction between miR-107-3p and circ_Arf3 or Tmbim6 (transmembrane BAX inhibitor motif containing 6) was confirmed using dual-luciferase reporter and pull-down assays. Circ_Arf3 is a stable circRNA, and the expression of circ_Arf3 was decreased after HG treatment in MCs. Functionally, ectopic overexpression of circ_Arf3 protected against HG-induced proliferation and elevation of fibrosis-related proteins in MCs. Mechanistically, circ_Arf3 directly bound to miR-107-3p, and Tmbim6 was a target of miR-107-3p. Further rescue assay showed miR-107-3p reversed the protective action of circ_Arf3 on MCs function under HG condition. Moreover, inhibition of miR-107-3p suppressed HG-induced proliferation and fibrosis, which were attenuated by Tmbim6 knockdown in MCs. CircRNA Arf3 could suppress HG-evoked mesangial cell proliferation and fibrosis via miR-107-3p/Tmbim6 axis, indicating the potential involvement of this axis in DN progression.
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Affiliation(s)
- Linping Zhang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, NO.256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Gang Jin
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, NO.256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China.
| | - Wei Zhang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, NO.256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Qiong Wang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, NO.256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Yan Liang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, NO.256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Qianlan Dong
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, NO.256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
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Bao Z, Yu X, Zhang L. The circ_0003928/miR-31-5p/MAPK6 cascade affects high glucose-induced inflammatory response, fibrosis and oxidative stress in HK-2 cells. Transpl Immunol 2024:102078. [PMID: 38964515 DOI: 10.1016/j.trim.2024.102078] [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: 12/21/2023] [Accepted: 06/30/2024] [Indexed: 07/06/2024]
Abstract
BACKGROUND Diabetic nephropathy (DN) is a severe diabetic complication disorder. Circular RNAs (circRNAs) actively participate in DN pathogenesis. In this report, we sought to define a new mechanism of circ_0003928 in regulating high glucose (HG)-induced HK-2 cells. METHODS To construct a DN cell model, we treated HK-2 cells with HG. Cell viability and apoptosis were detected by CCK-8 and flow cytometry, respectively. The inflammatory cytokines were quantified by ELISA. Protein analysis was performed by immunoblotting, and mRNA expression was detected by quantitative PCR. The circ_0003928/miR-31-5p and miR-31-5p/MAPK6 relationships were validated by RNA pull-down and luciferase assays. RESULTS HG promoted HK-2 cell apoptosis, fibrosis and oxidative stress. Circ_0003928 and MAPK6 levels were enhanced and miR-31-5p level was decreased in HK-2 cells after HG treatment. Circ_0003928 disruption promoted cell growth and inhibited apoptosis, inflammatory response, fibrosis and oxidative stress in HG-induced HK-2 cells. Circ_0003928 targeted miR-31-5p, and MAPK6 was a target of miR-31-5p. Circ_0003928 regulated MAPK6 expression through miR-31-5p. The functions of circ_0003928 disruption in HG-induced HK-2 cells were reversed by miR-31-5p downregulation or MAPK6 upregulation. CONCLUSION Circ_0003928 exerts regulatory impacts on HG-induced apoptosis, inflammation, fibrosis and oxidative stress in human HK-2 cells by the miR-31-5p/MAPK6 axis.
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Affiliation(s)
- Zheng Bao
- Department of Nephrology, Hanchuan People's Hospital, Hanchuan City 431600, Hubei, China
| | - Xia Yu
- Department of Nephrology, Hanchuan People's Hospital, Hanchuan City 431600, Hubei, China
| | - Lixia Zhang
- Department of Nephrology, Hanchuan People's Hospital, Hanchuan City 431600, Hubei, China.
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Zheng G, Sun S, Zhang G, Liang X. miR-144 affects the immune response and activation of inflammatory responses in Cynoglossus semilaevis by regulating the expression of CsMAPK6. FISH & SHELLFISH IMMUNOLOGY 2024; 149:109578. [PMID: 38670413 DOI: 10.1016/j.fsi.2024.109578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/02/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024]
Abstract
MicroRNAs are increasingly recognized for their pivotal role in the immune system, yet the specific regulatory functions of fish-derived microRNAs remain largely unexplored. In this research, we discovered a novel miRNA, Cse-miR-144, in the Chinese tongue sole (Cynoglossus semilaevis), characterized by a 73-base pair precursor and a 21-nucleotide mature sequence. Our findings revealed that the expression of Cse-miR-144 was notably inhibited by various Vibrio species. Utilizing bioinformatics and dual-luciferase assay techniques, we established that the pro-inflammatory cytokine gene CsMAPK6 is a direct target of Cse-miR-144. Subsequent in vitro and in vivo western blotting analyses confirmed that Cse-miR-144 can effectively reduce the protein levels of CsMAPK6 post-transcriptionally. Moreover, CsMAPK6 is known to be involved in the activation of the Nuclear Factor kappa-light-chain-enhancer of activated B cells (NF-kB). Additional investigations using qPCR and ELISA demonstrated that suppression of Cse-miR-144 leads to an upsurge in the liver mRNA levels of various immune genes (including MYD88, TRAF6, NF-κB, TRAF2, TRAF3, and TNF), alongside a marked increase in the production and secretion of pro-inflammatory cytokines (IL-1β, IL-6, and IL-8) in the bloodstream of C. semilaevis. These findings collectively underscore the potential of Cse-miR-144 as a key inhibitor of CsMAPK and its crucial role in modulating the immune and inflammatory responses in teleost fish. Compared to the siRNA, miRNA is a better tool in controlling the expression of target gene with a lower cost.
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Affiliation(s)
- Guiliang Zheng
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Siqi Sun
- Biodesign Center, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Guosong Zhang
- College of Agriculture and Bioengineering, Heze University, Heze, 274000, China.
| | - Xia Liang
- College of Agriculture and Bioengineering, Heze University, Heze, 274000, China.
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Sahadevan P, Dingar D, Nawaito SA, Nair RS, Trépanier J, Sahmi F, Shi Y, Gillis MA, Sirois MG, Meloche S, Tardif JC, Allen BG. ERK3 is involved in regulating cardiac fibroblast function. Physiol Rep 2024; 12:e16108. [PMID: 38872461 PMCID: PMC11176743 DOI: 10.14814/phy2.16108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 05/29/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024] Open
Abstract
ERK3/MAPK6 activates MAP kinase-activated protein kinase (MK)-5 in selected cell types. Male MK5 haplodeficient mice show reduced hypertrophy and attenuated increase in Col1a1 mRNA in response to increased cardiac afterload. In addition, MK5 deficiency impairs cardiac fibroblast function. This study determined the effect of reduced ERK3 on cardiac hypertrophy following transverse aortic constriction (TAC) and fibroblast biology in male mice. Three weeks post-surgery, ERK3, but not ERK4 or p38α, co-immunoprecipitated with MK5 from both sham and TAC heart lysates. The increase in left ventricular mass and myocyte diameter was lower in TAC-ERK3+/- than TAC-ERK3+/+ hearts, whereas ERK3 haploinsufficiency did not alter systolic or diastolic function. Furthermore, the TAC-induced increase in Col1a1 mRNA abundance was diminished in ERK3+/- hearts. ERK3 immunoreactivity was detected in atrial and ventricular fibroblasts but not myocytes. In both quiescent fibroblasts and "activated" myofibroblasts isolated from adult mouse heart, siRNA-mediated knockdown of ERK3 reduced the TGF-β-induced increase in Col1a1 mRNA. In addition, intracellular type 1 collagen immunoreactivity was reduced following ERK3 depletion in quiescent fibroblasts but not myofibroblasts. Finally, knocking down ERK3 impaired motility in both atrial and ventricular myofibroblasts. These results suggest that ERK3 plays an important role in multiple aspects of cardiac fibroblast biology.
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Affiliation(s)
- Pramod Sahadevan
- Montreal Heart Institute, Montréal, Québec, Canada
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Dharmendra Dingar
- Montreal Heart Institute, Montréal, Québec, Canada
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Sherin A Nawaito
- Montreal Heart Institute, Montréal, Québec, Canada
- Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada
- Department of Physiology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Reshma S Nair
- Montreal Heart Institute, Montréal, Québec, Canada
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Joëlle Trépanier
- Montreal Heart Institute, Montréal, Québec, Canada
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Fatiha Sahmi
- Montreal Heart Institute, Montréal, Québec, Canada
| | - Yanfen Shi
- Montreal Heart Institute, Montréal, Québec, Canada
| | | | - Martin G Sirois
- Montreal Heart Institute, Montréal, Québec, Canada
- Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada
| | - Sylvain Meloche
- Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Québec, Canada
| | - Jean-Claude Tardif
- Montreal Heart Institute, Montréal, Québec, Canada
- Department of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Bruce G Allen
- Montreal Heart Institute, Montréal, Québec, Canada
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Québec, Canada
- Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada
- Department of Medicine, Université de Montréal, Montréal, Québec, Canada
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Shi L, Duan L, Duan D, Xu H, Li X, Zhao W. Long non-coding RNA DANCR increases spinal cord neuron apoptosis and inflammation of spinal cord injury by mediating the microRNA-146a-5p/MAPK6 axis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2024; 33:2056-2067. [PMID: 38551688 DOI: 10.1007/s00586-024-08216-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 06/18/2024]
Abstract
OBJECTIVE This research was to unravel the impact of the lncRNA differentiation antagonizing non-protein coding RNA (DANCR)/microRNA (miR)-146a-5p/mitogen-activated protein kinase 6 (MAPK6) axis on spinal cord injury (SCI). METHODS SCI mouse models were established and injected with si-DANCR or miR-146a-5p agomir. The recovery of motor function was assessed by Basso Mouse Scale. SCI was pathologically evaluated, and serum inflammatory factors were measured in SCI mice. Mouse spinal cord neurons were injured by H2O2 and transfected, followed by assessment of proliferation and apoptosis. DANCR, miR-146a-5p, and MAPK6 in tissues and cells were detected, as well as their relationship. RESULTS DANCR increased and miR-146a-5p decreased in SCI. Silencing DANCR or enhancing miR-146a-5p stimulated the proliferation of mouse spinal cord neurons and reduced apoptosis. DANCR was bound to miR-146a-5p to target MAPK6. DANCR affected the proliferation and apoptosis of spinal cord neurons by mediating the miR-146a-5p/MAPK6 axis. Downregulating DANCR or upregulating miR-146a-5p improved inflammation, the destruction of spinal cord tissue structure, and apoptosis in SCI mice. CONCLUSION DANCR affects spinal cord neuron apoptosis and inflammation of SCI by mediating the miR-146a-5p/MAPK6 axis.
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Affiliation(s)
- Liang Shi
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Liang Duan
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China.
| | - Dapeng Duan
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Honghai Xu
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Xiaoming Li
- Department of Emergency Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Wei Zhao
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
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Liu SY, Wang H, Yang B, Hou B, Sun LS, Pang H, Wang HH, Fan YP. CircTAOK1 regulates high glucose induced inflammation, oxidative stress, ECM accumulation, and apoptosis in diabetic nephropathy via targeting miR-142-3p/SOX6 axis. ENVIRONMENTAL TOXICOLOGY 2024; 39:2197-2207. [PMID: 38124441 DOI: 10.1002/tox.24076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/31/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Diabetic nephropathy (DN) is a complication caused by diabetes. Circular RNAs (circRNAs) are a kind of RNA with a closed circular structure, which has high stability and is involved in many disease-related processes. The mechanism of circRNA TAO kinase 1 (circTAOK1) in the pathogenesis and development of DN is unclear. METHODS CircTAOK1, microRNA (miR)-142-3p, and sex-determining region Y-box transcription factor 6 (SOX6) mRNA levels were analyzed by real-time quantitative polymerase chain reaction (RT-qPCR). Cell counting kit-8 (CCK8) and 5-ethynyl-2'-deoxyuridine (EdU) assays were used to analyze cell proliferation. Cell cycle distribution was detected by flow cytometry. Western blot assay was performed to test B-cell lymphoma 2 (Bcl-2), Bcl-2 associated X (Bax), cleaved-caspase 3, and fibronectin (FN), collagen I (Col I), and collagen IV (Col IV) protein levels. ELISA assay was used to measure interleukin 1β (IL-1β), interleukin 6 (IL-6), and tumor necrosis factor (TNF-α) levels. The reactive oxygen species (ROS) and malondialdehyde (MDA) levels and the superoxide dismutase (SOD) activity were assessed by the corresponding kits. And the correlation between miR-142-3p and circTAOK1 or SOX6 was confirmed by dual luciferase reporter assay, RNA immunoprecipitation assay and RNA pull down assay. RESULTS CircTAOK1 and SOX6 expression levels were up-regulated, while miR-142-3p expression was down-regulated in DN serum and HG-treated HK-2 cells. Knockdown of circTAOK1 could inhibit cell injury of HG-induced HK-2 cells. The inhibitory effect of circTAOK1 knockdown on HG-induced HK-2 cell injury was restored by miR-142-3p downregulation. CircTAOK1 acted as a sponge for miR-142-3p, and SOX6 was targeted by miR-142-3p. The overexpression of SOX6 could recover the effect of miR-142-3p overexpression on HG-induced HK-2 cell injury. CircTAOK1 regulated the expression of SOX6 by targeting miR-142-3p. CONCLUSION CircTAOK1 knockdown inhibited HG-induced HK-2 cell damage in DN by the miR-142-3p/SOX6 axis.
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Affiliation(s)
- Shu-Yan Liu
- Department of Endocrinology, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Jiaozuo, China
| | - Hong Wang
- Department of Gynecology, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Jiaozuo, China
| | - Bo Yang
- Department of Neurology, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Jiaozuo, China
| | - Baohua Hou
- Department of Pharmacy, Medical College of Henan Polytechnic University, Jiaozuo, China
| | - Li-Sha Sun
- Department of Gynecology, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Jiaozuo, China
| | - Hui Pang
- Department of Oncology, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Jiaozuo, China
| | - Hui-Hui Wang
- Department of Endocrinology, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Jiaozuo, China
| | - Yan-Ping Fan
- Department of Endocrinology, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Jiaozuo, China
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Ma P, He Y, Wang B, Qiu D, Xu Q. CircGAB1 Facilitates Podocyte Injury Through Sponging miR-346 and Activating MAPK6 in Diabetic Nephropathy. Appl Biochem Biotechnol 2024; 196:1863-1875. [PMID: 37440116 DOI: 10.1007/s12010-023-04645-0] [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] [Accepted: 07/01/2023] [Indexed: 07/14/2023]
Abstract
BACKGROUND Podocyte injury is very important process in diabetic nephropathy (DN) progression. Circular RNA (circRNA) takes part in regulating the advancement of DN. Herein, we explored the role and mechanism of circGAB1 in DN progression. METHODS The abundances of circGAB1, microRNA-346 (miR-346) and mitogen-activated protein kinase 6 (MAPK6) were detected by qRT-PCR in DN serum samples and podocyte HGPC. Moreover, cell viability and apoptosis were determined using CCK8 assay and flow cytometry. Also, the protein levels of MAPK6, proliferation-related markers and apoptosis-related markers were analyzed by western blot. ELISA assay was used to measure the levels of inflammatory factors, and corresponding kits were used to detect the levels of oxidative stress-related markers. The relationship between miR-346 and circGAB1 or MAPK6 was distinguished by dual-luciferase reporter assay. RESULTS CircGAB1 expression was increased in DN serum samples and HG-treated HGPC cells. CircGAB1 knockdown inhibited HG-induced apoptosis, inflammatory response and oxidative stress in HGPC cells. In terms of mechanism, circGAB1 sponged miR-346, and miR-346 targeted MAPK6. The inhibition effect of circGAB1 knockdown on HG-induced podocyte injury could be reversed by miR-346 inhibitor. Moreover, miR-346 overexpression repressed HG-induced podocyte injury by targeting MAPK6. CircGAB1 served as miR-346 sponge to positively regulate MAPK6. CONCLUSION CircGAB1 contributed to podocyte injury through mediating miR-346/MAPK6 axis, suggesting that circGAB1 might promote DN progression.
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Affiliation(s)
- Pingyue Ma
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, No.261, Huansha Road, Hangzhou, Zhejiang, 310006, P. R. China
| | - Yajing He
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, No.261, Huansha Road, Hangzhou, Zhejiang, 310006, P. R. China
| | - Benyong Wang
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, No.261, Huansha Road, Hangzhou, Zhejiang, 310006, P. R. China
| | - Donghao Qiu
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, No.261, Huansha Road, Hangzhou, Zhejiang, 310006, P. R. China
| | - Qunhong Xu
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, No.261, Huansha Road, Hangzhou, Zhejiang, 310006, P. R. China.
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Fang Z, Wang D, Sun F, Chang J, Yuan D, Lin S, Teng J. Circ-Luc7l Absence Attenuates Diabetic Nephropathy Progression by Reducing Mesangial Cell Excessive Proliferation, Inflammation, and Extracellular Matrix Accumulation via Mediating the miR-205-5p/Tgfbr1 Pathway. Biochem Genet 2024:10.1007/s10528-024-10694-9. [PMID: 38376578 DOI: 10.1007/s10528-024-10694-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 01/09/2024] [Indexed: 02/21/2024]
Abstract
Diabetic nephropathy (DN) threatens the survival quality of patients, with complex pathogenesis. Circular RNA (circRNA) dysregulation occurs in DN development. This work aimed to investigate the role of circ-Luc7l in DN cell models and related molecular mechanisms. The expression of circ-Luc7l, microRNA (miR)-205-5p, and transforming growth factor-beta receptor 1 (Tgfbr1) was examined by real-time quantitative PCR (RT-qPCR). Cell viability and proliferation were detected by Cell Counting Kit-8 (CCK-8) assay and EdU assay. The expression of extracellular matrix (ECM)-related markers and Tgrbr1 protein was measured by Western blot. The binding between miR-205-5p and circ-Luc7l or Tgfbr1 was validated by dual-luciferase reporter assay, RNA immunoprecipitation (RIP) assay, or RNA pull-down assay. Experimental animal models were established to elucidate the function of circ-Luc7l in vivo. Circ-Luc7l expression was notably enhanced in high glucose (HG)-treated mesangial cells. Knockdown of circ-Luc7l attenuated HG-induced cell proliferation, inflammation, and ECM accumulation in vitro and relieved inflammation and ECM accumulation of kidneys of diabetic mice in vivo. Circ-Luc7l targeted miR-205-5p, and miR-205-5p inhibition rescued the depletion effects of circ-Luc7l knockdown on cell proliferation, inflammation, and ECM accumulation. MiR-205-5p bound to Tgfbr1 whose expression was negatively regulated by circ-Luc7l. Tgfbr1 overexpression also rescued the depletion effects of circ-Luc7l knockdown on cell proliferation, inflammation, and ECM accumulation. In HG conditions, increased circ-Luc7l upregulated Tgfbr1 expression via targeting miR-205-5p to induce DN progression.
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Affiliation(s)
- Zhan Fang
- Department of Nephrology, Yantaishan Hospital, No. 91 Jiefang Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Dan Wang
- Department of Nephrology, Yantaishan Hospital, No. 91 Jiefang Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Fang Sun
- Department of Nephrology, Yantaishan Hospital, No. 91 Jiefang Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Jing Chang
- Department of Nephrology, Yantaishan Hospital, No. 91 Jiefang Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Dong Yuan
- Department of Nephrology, Yantaishan Hospital, No. 91 Jiefang Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Shuhua Lin
- Department of Nephrology, Yantaishan Hospital, No. 91 Jiefang Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Jian Teng
- Department of Nephrology, Yantaishan Hospital, No. 91 Jiefang Road, Zhifu District, Yantai, 264000, Shandong, China.
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Heydarnia E, Dorostgou Z, Hedayati N, Mousavi V, Yahyazadeh S, Alimohammadi M, Gheibi M, Heidari P, Igder S, Mafi A, Vakili O. Circular RNAs and cervical cancer: friends or foes? A landscape on circRNA-mediated regulation of key signaling pathways involved in the onset and progression of HPV-related cervical neoplasms. Cell Commun Signal 2024; 22:107. [PMID: 38341592 PMCID: PMC10859032 DOI: 10.1186/s12964-024-01494-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 01/20/2024] [Indexed: 02/12/2024] Open
Abstract
Cervical cancer (CC) is a common gynecologic malignancy, accounting for a significant proportion of women death worldwide. Human papillomavirus (HPV) infection is one of the major etiological causes leading to CC onset; however, genetic, and epigenetic factors are also responsible for disease expansion. Circular RNAs (circRNAs), which are known as a particular subset of non-coding RNA (ncRNA) superfamily, with covalently closed loop structures, have been reported to be involved in the progression of diverse diseases, especially neoplasms. In this framework, abnormally expressed circRNAs are in strong correlation with CC pathogenesis through regulating substantial signaling pathways. Also, these RNA molecules can be considered as promising biomarkers and therapeutic targets for CC diagnosis/prognosis and treatment, respectively. Herein, we first review key molecular mechanisms, including Wnt/β-catenin, MAPK, and PI3K/Akt/mTOR signaling pathways, as well as angiogenesis and metastasis, by which circRNAs interfere with CC development. Then, diagnostic, prognostic, and therapeutic potentials of these ncRNA molecules will be highlighted in depth.
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Affiliation(s)
- Emad Heydarnia
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Dorostgou
- Department of Biochemistry, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
| | - Neda Hedayati
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Vahide Mousavi
- School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Sheida Yahyazadeh
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mina Alimohammadi
- Student Research Committee, Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mobina Gheibi
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Parasta Heidari
- School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Somayeh Igder
- Department of Clinical Biochemistry, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
- Autophagy Research Center, Department of Clinical Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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10
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Du Y, Feng Y, Cai Y, Tian C. CircLARP1B promotes pyroptosis of high glucose-induced renal mesangial cells by regulating the miR-578/TLR4 axis. Int Urol Nephrol 2024; 56:283-293. [PMID: 37341906 DOI: 10.1007/s11255-023-03672-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 06/11/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND Diabetic nephropathy (DN) is a main cause of end-stage renal disease with high mortality. Circular RNAs (circRNAs) are associated with the pathogenesis of DN. This study aimed to explore the role of circLARP1B in DN. METHODS The levels of circLARP1B, miR-578, TLR4 in DN and high glucose (HG)-treated cells using quantitative real-time PCR. Their relationship was analyzed using dual-luciferase reporter assay. The biological behaviors were assessed by MTT assay, EDU assay, flow cytometry, ELISA, and western blot. RESULTS The results indicated that circLARP1B and TLR4 were highly expressed, and miR-578 was low expressed in patients with DN and HG-induced cells. Knockdown of circLARP1B promoted the proliferation and cell cycle, and inhibited pyroptosis and inflammation of HG-induced cells. CircLARP1B is a sponge of miR-578, which targets TLR4. Rescue experiments showed that inhibition of miR-578 reversed the effects of circLARP1B knockdown, while TLR4 reversed the effects of miR-578. CONCLUSION CircLARP1B/miR-578/TLR4 axis suppressed the proliferation, blocked cell cycle at the G0-G1 phase, promoted pyroptosis, and inflammatory factor release of renal mesangial cells induced by HG. The findings suggested that circLARP1B may be a target for the treatment of DN.
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Affiliation(s)
- Yan Du
- Department of Nephrology, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Yu Feng
- Department of Clinical Pharmacy, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Yu Cai
- Department of General Surgery, The First Affiliated Hospital of Xi'an Medical University, No. 48, Fenghao West Road, Lianhu District, Xi'an, 710077, Shaanxi, China.
| | - Chang Tian
- Department of Clinical Laboratory, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China.
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11
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Belykh A, Hawro I, Kolczyńska-Matysiak K, Loza-Valdes A, Mieczkowski A, Sumara G. Triazolo[4,5-d]pyrimidin-5-amines based ERK3 inhibitors fail to demonstrate selective effects on adipocyte function. Arch Biochem Biophys 2024; 751:109825. [PMID: 37992885 DOI: 10.1016/j.abb.2023.109825] [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: 07/25/2023] [Revised: 10/24/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
Extracellular signal-regulated kinase 3 (ERK3 also designated MAPK6 - mitogen-activated protein kinase 6) is a ubiquitously expressed kinase participating in the regulation of a broad spectrum of physiological and pathological processes. Targeted inhibition of the kinase may allow the development of novel treatment strategies for a variety of types of cancer and somatic pathologies, as well as preserving metabolic health, combat obesity and diabetes. We chose and synthesized three triazolo [4,5-d]pyrimidin-5-amines proposed previously as putative ERK3 inhibitors to assess their selectivity and biological effects in terms of metabolic state impact in living cells. As it was previously shown that ERK3 is a major regulator of lipolysis in adipocytes, we focused on this process. Our new results indicate that in addition to the previously identified lipolytic enzyme ATGL, ERK3 also regulates hormone-sensitive lipase (HSL) and monoglyceride lipase (MGL). Moreover, this kinase also promotes the abundance of fatty acid synthase (FASN) as well as protein kinase cAMP-activated catalytic subunit alpha (PKACα). To investigate various effects of putative ERK3 inhibitors on lipolysis, we utilized different adipocyte models. We demonstrated that molecules exhibit lipolysis-modulating effects; however, the effects of triazolo [4,5-d]pyrimidin-5-amines based inhibitors on lipolysis are not dependent on ERK3. Subsequently, we revealed a wide range of the compounds' possible targets using a machine learning-based prediction. Therefore, the tested compounds inhibit ERK3 in vitro, but the biological effect of this inhibition is significantly overlapped and modified by some other molecular events related to the non-selective binding to other targets.
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Affiliation(s)
- Andrei Belykh
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Izabela Hawro
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | | | - Angel Loza-Valdes
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Adam Mieczkowski
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 5a Pawinskiego, 02-106 Warsaw, Poland
| | - Grzegorz Sumara
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.
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12
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Ye L, Chen JH, Zhu SL, Xu DD, Yang Y, Shi MP. Hsa_circ_0001162 Inhibition Alleviates High Glucose-Induced Human Podocytes Injury by the miR-149-5p/MMP9 Signaling Pathway. Appl Biochem Biotechnol 2023; 195:7255-7276. [PMID: 36988849 DOI: 10.1007/s12010-023-04431-y] [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] [Accepted: 03/15/2023] [Indexed: 03/30/2023]
Abstract
Emerging evidences suggested that circular RNAs (circRNAs) are involved in diabetic nephropathy (DN). Accumulating evidence had suggested that the degree of podocyte is a major prognostic determinant of DN progression. However, the function and in-depth mechanisms of hsa_circ_0001162 in podocyte injury of DN remain unclear. Hsa_circ_0001162 expression was detected by real-time quantitative PCR (RT-qPCR) in peripheral blood of DN patients and high glucose-induced podocytes injury model. The cell counting kit 8, 5-ethynyl-2'-deoxyuridine, flow cytometry with Annexin V-FITC/PI staining, caspase-3 activity assay Kit, enzyme linked immunosorbent assay (ELISA), RT-qPCR and western blotting were used to evaluate the effect of hsa_circ_0001162 / miR-149-5p / MMP9 axis on high glucose-induced podocyte injury. Mechanistically, dual luciferase reporter was used to confirm the relationship of miR-149-5p and hsa_circ_0001162 or MMP9. Furthermore, RNA-pull down and immunoprecipitation assay were implemented to verify the potential regulatory effects of EIF4A3 on biogenesis of hsa_circ_0001162. Our results showed that hsa_circ_0001162 was highly expressed in peripheral blood of DN patients and high glucose-induced podocytes injury model, and the knockdown of hsa_circ_0001162 increased the proliferation, inhibited the apoptosis, and suppressed inflammatory response in high glucose-induced podocytes injury. Mechanism studies demonstrated that EIF4A3 bound with flanking sequences of hsa_circ_0001162 to promote hsa_circ_0001162 expression, upregulated hsa_circ_0001162 increased the MMP9 expression via sponging miR-149-5p, thus aggravating the high glucose-induced podocytes injury. Overall, our data demonstrated that knockdown of hsa_circ_0001162 inhibited high glucose-induced podocytes injury by regulating miR-149-5p/MMP9 axis, and intervention of hsa_circ_0001162/miR-149-5p/MMP9 axis may be a potentially promising therapeutic strategy for podocyte injury in DN patients.
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Affiliation(s)
- Ling Ye
- Department of Nephrology, Shenzhen Nanshan People's Hospital and The 6Th Affiliated Hospital of Shenzhen University Medical School, Shenzhen, China.
| | - Jie-Hui Chen
- Department of Nephrology, Shenzhen Nanshan People's Hospital and The 6Th Affiliated Hospital of Shenzhen University Medical School, Shenzhen, China
| | - Sheng-Lang Zhu
- Department of Nephrology, Shenzhen Nanshan People's Hospital and The 6Th Affiliated Hospital of Shenzhen University Medical School, Shenzhen, China
| | - Dan-Dan Xu
- Department of Nephrology, Shenzhen Nanshan People's Hospital and The 6Th Affiliated Hospital of Shenzhen University Medical School, Shenzhen, China
| | - Yun Yang
- Department of Nephrology, Shenzhen Nanshan People's Hospital and The 6Th Affiliated Hospital of Shenzhen University Medical School, Shenzhen, China
| | - Ming-Pei Shi
- Department of Nephrology, Shenzhen Nanshan People's Hospital and The 6Th Affiliated Hospital of Shenzhen University Medical School, Shenzhen, China
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13
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Shu H, Zhang Z, Liu J, Chen P, Yang C, Wu Y, Wu D, Cao Y, Chu Y, Li L. Circular RNAs: An emerging precise weapon for diabetic nephropathy diagnosis and therapy. Biomed Pharmacother 2023; 168:115818. [PMID: 37939612 DOI: 10.1016/j.biopha.2023.115818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 11/10/2023] Open
Abstract
Diabetic nephropathy (DN) is a prevalent chronic microvascular complication associated with diabetes mellitus and represents a major cause of chronic kidney disease and renal failure. Current treatment strategies for DN primarily focus on symptom alleviation, lacking effective approaches to halt or reverse DN progression. Circular RNA (circRNA), characterized by a closed-loop structure, has emerged as a novel non-coding RNA regulator of gene expression, attributed to its conservation, stability, specificity, and multifunctionality. Dysregulation of circRNA expression is closely associated with DN progression, whereby circRNA impacts kidney cell injury by modulating cell cycle, differentiation, cell death, as well as influencing the release of inflammatory factors and stromal fibronectin expression. Consequently, circRNA is considered a predictive biomarker and a potential therapeutic target for DN. This review provides an overview of the latest research progress in the classification, functions, monitoring methods, and databases related to circRNA. The paper focuses on elucidating the impact and underlying mechanisms of circRNA on kidney cells under diabetic conditions, aiming to offer novel insights into the prevention, diagnosis, and treatment of DN.
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Affiliation(s)
- Haiying Shu
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China; College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China
| | - Zhen Zhang
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China; School of First Clinical Medical College, Mudanjiang Medical University, Mudanjiang, China
| | - Jieting Liu
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China.
| | - Peijian Chen
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China; College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China
| | - Can Yang
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China; College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China
| | - Yan Wu
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China; College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China
| | - Dan Wu
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China; College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China
| | - Yanan Cao
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China; College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China
| | - Yanhui Chu
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China.
| | - Luxin Li
- Heilongjiang Key Laboratory of Anti-Fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China; College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China.
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14
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Ahmadi M, Morshedzadeh F, Ghafouri-Fard S. Circular RNA_0000285: A novel double-edged sword circular RNA in human malignancies. Pathol Res Pract 2023; 251:154900. [PMID: 37871444 DOI: 10.1016/j.prp.2023.154900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/18/2023] [Accepted: 10/18/2023] [Indexed: 10/25/2023]
Abstract
Circular RNAs (circRNAs) are a class of RNA molecules that are characterized by their covalently closed structure, which is formed through a process of back splicing of the precursor mRNA. Abnormal expression of circRNAs has been shown to indirectly affect their interaction with microRNAs (miRNAs), thereby modulating gene transcription. One such circRNA, circ_0000285, is known to be dysregulated in various cancers and human diseases. This circRNA is derived from the HIPK3 gene on chromosome 11 and acts as a competing endogenous RNA for several miRNAs, including miR-654-3p, miR-197-3p, miR-1278, miR-582-3p, and miR-599. Notably, circ_0000285 has been linked to poor overall survival and several clinicopathological features in multiple human cancers. In this review, we present a comprehensive summary of the oncogenic effect of circ_0000285 in various cancers, drawing on experiment performed on cell lines, animals, and human tissues. Furthermore, we predicted potential miRNAs and RNA-binding proteins that may interact with circ_0000285, thereby providing new insights for further studies.
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Affiliation(s)
- Mohsen Ahmadi
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Firouzeh Morshedzadeh
- Department of Genetics, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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15
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Wang Q, Zhu Y, Dong Q, Zhang L, Zhang W. A Novel Circ_Arf3/miR-452-5p/Mbnl1 Axis Regulates Proliferation and Expression of Fibrosis-Related Proteins of Mouse Mesangial Cells Under High Glucose. Diabetes Metab Syndr Obes 2023; 16:2105-2116. [PMID: 37457110 PMCID: PMC10349572 DOI: 10.2147/dmso.s400530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 03/31/2023] [Indexed: 07/18/2023] Open
Abstract
Background Diabetic nephropathy (DN) is a serious microvascular complication of diabetes that may lead to chronic renal failure and end-stage renal disease. Circular RNAs (circRNAs) play important roles in DN progression. However, the action of circRNA ADP ribosylation factor 3 (circ_Arf3) in high glucose (HG)-induced change is still unclear. Methods Mouse mesangial cells (MCs) were treated with 30 mM HG as a DN cell model in vitro. Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to examine the expression levels of circ_Arf3, microRNA (miR)-452-5p and muscleblind like splicing regulator 1 (Mbnl1). The proliferation of HG-treated MCs was assessed using 5 Ethynyl 2' deoxyuridine (EdU) and cell counting kit-8 (CCK-8) assays, and the levels of proliferation and fibrosis-related proteins and Mbnl1 were detected by Western blot. Dual-luciferase reporter and RNA pull-down assays were utilized to determine the relationship between miR-452-5p and circ_Arf3 or Mbnl1. Results Our results discovered that circ_Arf3 and Mbnl1 were lowly expressed in HG-treated MCs, while miR-452-5p expression was up-regulated. Moreover, circ_Arf3 was mainly located in the cytoplasm and had a ring-like stable structure. Functional assays demonstrated that overexpression of circ_Arf3 prevented cell proliferation and fibrous formation in HG-treated MCs. Circ_Arf3 could sponge miR-452-5p, and the effect of circ_Arf3 overexpression was reversed by enhanced expression of miR-452-5p. Mbnl1 was a direct target of miR-452-5p. Knockdown of Mbnl1 abolished the suppressive effects of miR-452-5p inhibitor on proliferation and fibrosis-related protein expression in HG-treated MCs. Moreover, circ_Arf3 regulated Mbnl1 through miR-452-5p. Conclusion Overexpression of circ_Arf3 prevents cell proliferation and fibrous formation in HG-treated MCs by regulating the expression of Mbnl1 via miR-452-5p.
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Affiliation(s)
- Qiong Wang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People’s Hospital, Xi’an City, Shaanxi, People’s Republic of China
| | - Yanting Zhu
- Kidney Disease and Dialysis Center, Shaanxi Provincial People’s Hospital, Xi’an City, Shaanxi, People’s Republic of China
| | - Qianlan Dong
- Kidney Disease and Dialysis Center, Shaanxi Provincial People’s Hospital, Xi’an City, Shaanxi, People’s Republic of China
| | - Linping Zhang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People’s Hospital, Xi’an City, Shaanxi, People’s Republic of China
| | - Wei Zhang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People’s Hospital, Xi’an City, Shaanxi, People’s Republic of China
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16
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Liu Z, Liu J, Wang W, An X, Luo L, Yu D, Sun W. Epigenetic modification in diabetic kidney disease. Front Endocrinol (Lausanne) 2023; 14:1133970. [PMID: 37455912 PMCID: PMC10348754 DOI: 10.3389/fendo.2023.1133970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 05/30/2023] [Indexed: 07/18/2023] Open
Abstract
Diabetic kidney disease (DKD) is a common microangiopathy in diabetic patients and the main cause of death in diabetic patients. The main manifestations of DKD are proteinuria and decreased renal filtration capacity. The glomerular filtration rate and urinary albumin level are two of the most important hallmarks of the progression of DKD. The classical treatment of DKD is controlling blood glucose and blood pressure. However, the commonly used clinical therapeutic strategies and the existing biomarkers only partially slow the progression of DKD and roughly predict disease progression. Therefore, novel therapeutic methods, targets and biomarkers are urgently needed to meet clinical requirements. In recent years, increasing attention has been given to the role of epigenetic modification in the pathogenesis of DKD. Epigenetic variation mainly includes DNA methylation, histone modification and changes in the noncoding RNA expression profile, which are deeply involved in DKD-related inflammation, oxidative stress, hemodynamics, and the activation of abnormal signaling pathways. Since DKD is reversible at certain disease stages, it is valuable to identify abnormal epigenetic modifications as early diagnosis and treatment targets to prevent the progression of end-stage renal disease (ESRD). Because the current understanding of the epigenetic mechanism of DKD is not comprehensive, the purpose of this review is to summarize the role of epigenetic modification in the occurrence and development of DKD and evaluate the value of epigenetic therapies in DKD.
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Affiliation(s)
- Zhe Liu
- Public Research Platform, First Hospital of Jilin University, Changchun, Jilin, China
- College of Basic Medical Sciences, Jilin University, Changchun, Jilin, China
| | - Jiahui Liu
- Public Research Platform, First Hospital of Jilin University, Changchun, Jilin, China
| | - Wanning Wang
- Department of Nephrology, First Hospital of Jilin University, Changchun, Jilin, China
| | - Xingna An
- Public Research Platform, First Hospital of Jilin University, Changchun, Jilin, China
| | - Ling Luo
- Public Research Platform, First Hospital of Jilin University, Changchun, Jilin, China
| | - Dehai Yu
- Public Research Platform, First Hospital of Jilin University, Changchun, Jilin, China
| | - Weixia Sun
- Department of Nephrology, First Hospital of Jilin University, Changchun, Jilin, China
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17
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Zhang L, Jin G, Zhang W, Wang X, Li Z, Dong Q. Silencing circ_0080425 alleviates high-glucose-induced endothelial cell dysfunction in diabetic nephropathy by targeting miR-140-3p/FN1 axis. Clin Exp Nephrol 2023; 27:12-23. [PMID: 36083527 DOI: 10.1007/s10157-022-02273-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/25/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Hsa_circ_0080425 (circ_0080425) is newly identified to correlate with the progression of diabetic nephropathy (DN). However, its role and mechanism in DN process is not very clear. METHODS Cell counting kit-8 assay, flow cytometry, scratch wound assay, and western blotting were performed to measure endothelial cell dysfunction. Expression of circ_0080425, microRNA (miR)-140-3p and fibronectin 1 (FN1) were determined by quantitative real-time PCR and western blotting. The direct interaction was confirmed by dual-luciferase reporter assay. RESULTS High-glucose (HG) treatment could induce inhibition of cell proliferation, cell cycle entrance and wound healing rate in human umbilical vein endothelial cells (HRGEC), and enhancement of apoptosis rate. Circ_0080425 expression was upregulated by HG, and exhausting circ_0080425 could attenuate HG-induced above effects in HRGEC. MiR-140-3p was sponged by circ_0080425, and its inhibitor reversed the regulation of circ_0080425 knockdown on HG-induced HRGEC injury. FN1 was targeted by miR-140-3p, and its overexpression also restored the inhibitory effect of miR-140-3p on HC-induced HRGEC injury. CONCLUSION Circ_0080425 expression might contribute to HG-induced endothelial cell injury, and circ_0080425/miR-140-3p/FN1 axis was a potential therapeutic approach to interfere DN process.
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Affiliation(s)
- Linping Zhang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Gang Jin
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Wei Zhang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Xiaoming Wang
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Zhenjiang Li
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Qianlan Dong
- Kidney Disease and Dialysis Center, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China.
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Yan T, Wang X, Zhou D, Qiu H, Zhang J, Yang W. Circ_0003489 facilitates multiple myeloma progression by targeting miR-433-3p/PBX3 axis. HEMATOLOGY (AMSTERDAM, NETHERLANDS) 2022; 27:951-959. [PMID: 36004524 DOI: 10.1080/16078454.2022.2109554] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Multiple myeloma (MM) is a relatively common hematologic tumor, and the study of non-coding RNAs in MM is gradually increasing. Our study aimed to reveal the regulatory mechanism of circular RNA_0003489 (circ_0003489)/microRNA-433-3p (miR-433-3p)/Pre-B-cell leukemia homeobox 3 (PBX3) axis in MM. METHODS Circ_0003489, miR-433-3p and PBX3 contents were measured by real-time quantitative PCR or western blot. Functionally, MM cell proliferation and apoptosis were evaluated using cell counting kit-8, flow cytometry and EdU assays. Interaction between miR-433-3p and circ_0003489 or PBX3 was confirmed with the application of dual-luciferase reporter assay and RNA pull down assay. RESULTS Circ_0003489 and PBX3 were upregulated, while miR-433-3p was downregulated in MM tissues. Circ_0003489 knockdown or miR-433-3p overexpression remarkably suppressed MM proliferation and increased apoptosis in vitro. In terms of mechanism, circ_0003489 could sponge miR-433-3p to regulate PBX3. Besides, miR-433-3p downregulation or PBX3 overexpression reversed the inhibition effect of circ_0003489 knockdown on MM progression. CONCLUSION Circ_0003489 facilitated MM progression by targeting miR-433-3p/PBX3 axis, suggesting that it might be a potential target for MM.
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Affiliation(s)
- Tielun Yan
- Department of Clinical Laboratory, Lishui Second People's Hospital, Lishui, People's Republic of China
| | - Xiaoli Wang
- Department of Hematology, Lishui People's Hospital, Lishui, People's Republic of China
| | - Dajin Zhou
- Department of Clinical Laboratory, Lishui Second People's Hospital, Lishui, People's Republic of China
| | - Haibo Qiu
- Clinical Laboratory Center, Lishui People's Hospital, Lishui, People's Republic of China
| | - Jiliang Zhang
- Clinical Laboratory Center, Lishui People's Hospital, Lishui, People's Republic of China
| | - Weixiong Yang
- Department of Hematology, Lishui People's Hospital, Lishui, People's Republic of China
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Yin W, Zhang Z, Xiao Z, Li X, Luo S, Zhou Z. Circular RNAs in diabetes and its complications: Current knowledge and future prospects. Front Genet 2022; 13:1006307. [PMID: 36386812 PMCID: PMC9643748 DOI: 10.3389/fgene.2022.1006307] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/17/2022] [Indexed: 07/26/2023] Open
Abstract
A novel class of non-coding RNA transcripts called circular RNAs (circRNAs) have been the subject of significant recent studies. Accumulating evidence points that circRNAs play an important role in the cellular processes, inflammatory expression, and immune responses through sponging miRNA, binding, or translating in proteins. Studies have found that circRNAs are involved in the physiologic and pathologic processes of diabetes. There has been an increased focus on the relevance of between abnormal circRNA expression and the development and progression of various types of diabetes and diabetes-related diseases. These circRNAs not only serve as promising diagnostic and prognostic molecular biomarkers, but also have important biological roles in islet cells, diabetes, and its complications. In addition, many circRNA signaling pathways have been found to regulate the occurrence and development of diabetes. Here we comprehensively review and discuss recent advances in our understanding of the physiologic function and regulatory mechanisms of circRNAs on pancreatic islet cells, different subtypes in diabetes, and diabetic complications.
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Qin Y, Xu Y, Peng H, Cao M, Zhao K, Zhu Y. Circ_0123996 promotes the proliferation, inflammation, and fibrosis of mesangial cells by sponging miR-203a-3p to upregulate SOX6 in diabetic nephropathy. J Biochem Mol Toxicol 2022; 36:e23139. [PMID: 36073553 DOI: 10.1002/jbt.23139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 03/11/2022] [Accepted: 05/30/2022] [Indexed: 11/06/2022]
Abstract
Circular RNA has been reported to participate in human diseases including diabetic nephropathy (DN). However, the role and mechanism of circ_0123996 in DN need to be further explored. Relative expression levels of circ_0123996, microRNA (miR)-203a-3p, SRY-box 6 (SOX6), and inflammatory cytokines were determined using quantitative real-time PCR. Western blot analysis was used to detect the protein expression of SOX6 and fibrosis-related markers. Cell proliferation was measured using the Cell Counting Kit 8 assay. The interaction between miR-203a-3p and circ_0123996 or SOX6 was verified using the dual-luciferase reporter assay. The circ_0123996 and SOX6 expression were increased and the miR-203a-3p expression was decreased in high glucose-induced mesangial cells. Silenced circ_0123996 could hinder the proliferation, inflammation, and fibrosis of mesangial cells. In terms of mechanism, circ_0123996 could sponge miR-203a-3p to positively regulate SOX6 expression. Function experiments revealed that miR-203a-3p inhibitor could abolish the regulation of circ_0123996 silencing on mesangial cell proliferation, inflammation, and fibrosis. In addition, the knockdown of SOX6 could inhibit mesangial cell proliferation, inflammation, and fibrosis. Also, SOX6 overexpression could reverse the regulation of circ_0123996 silencing on mesangial cell progression. In summary, our data revealed that circ_0123996 promoted the proliferation, inflammation, and fibrosis of mesangial cells via modulating the miR-203a-3p/SOX6 axis, suggesting that circ_0123996 might be a target for alleviating DN progression.
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Affiliation(s)
- Yan Qin
- Department of Endocrinology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Yun Xu
- Department of Endocrinology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Hua Peng
- Department of Nephrology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Meng Cao
- Department of Endocrinology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Kelei Zhao
- Department of Oncology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Yunfeng Zhu
- Department of Endocrinology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
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21
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Xu Y, Zhan X. lncRNA KCNQ1OT1 regulated high glucose-induced proliferation, oxidative stress, extracellular matrix accumulation, and inflammation by miR-147a/SOX6 in diabetic nephropathy (DN). Endocr J 2022; 69:511-522. [PMID: 34911869 DOI: 10.1507/endocrj.ej21-0514] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been proved to play critical roles in diabetic nephropathy (DN). This study aimed to investigate the functions and underlying mechanism of potassium voltage-gated channel subfamily Q member 1 overlapping transcript 1 (KCNQ1OT1) in DN. Blood samples were obtained from 33 DN patients and 30 healthy volunteers. Kidney biopsies tissues of DN patients (n = 10) and patients with normal kidney morphology (n = 10) were collected. We found that KCNQ1OT1 was markedly overexpressed in the blood and kidney biopsies tissues of DN patients, as well as in high glucose (HG)-cultured human glomerular mesangial (HGMC) cells. Knockdown of KCNQ1OT1 suppressed proliferation, extracellular matrix (ECM) accumulation, inflammation, and oxidative stress in HG-treated HGMC cells in vitro. KCNQ1OT1 functioned as a sponge for microRNA-147a (miR-147a), and SRY-Box Transcription Factor 6 (SOX6) was directly targeted by miR-147a. Downregulation of miR-147a or upregulation of SOX6 partly overturned the prohibitive effects of KCNQ1OT1 knockdown or miR-147a overexpression on proliferation, ECM accumulation, inflammation, and oxidative stress in HG-treated HGMC cells. Altogether, KCNQ1OT1 mediated the proliferation, ECM accumulation, inflammation, and oxidative stress in HG-treated HGMC cells via miR-147a/SOX6 axis, which might be a novel target for DN therapy.
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Affiliation(s)
- Ying Xu
- Department of Blood Purification Center, Huangshi Central Hospital (Affiliated Hospital of Hubei Polytechnic University), Edong Healthcare Group, 435000, Hubei, China
| | - Xiaolin Zhan
- Department of Blood Purification Center, Huangshi Central Hospital (Affiliated Hospital of Hubei Polytechnic University), Edong Healthcare Group, 435000, Hubei, China
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22
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Jin J, Wang Y, Zheng D, Liang M, He Q. A Novel Identified Circular RNA, mmu_mmu_circRNA_0000309, Involves in Germacrone-Mediated Improvement of Diabetic Nephropathy Through Regulating Ferroptosis by Targeting miR-188-3p/GPX4 Signaling Axis. Antioxid Redox Signal 2022; 36:740-759. [PMID: 34913724 DOI: 10.1089/ars.2021.0063] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Aims: Diabetic nephropathy (DN) is characterized by microalbuminuria, mainly associated with pathological and morphological alterations of podocyte. New drug targeting podocyte injury is a promising approach for treating DN. The present study is aimed at developing new drug targeting podocyte injury for treating DN. Results: In this study, germacrone ameliorated kidney damage and inhibited podocyte apoptosis in a DN mouse model. Based on RNA-seq, mmu_mmu_circRNA_0000309, located in host gene vascular endothelial zinc finger 1 (Vezf1), showed a sharp decline in DN mice and a remarkable recovery in germacrone-challenged DN mice. mmu_circRNA_0000309 silence or miR-188-3p mimics abrogated the antiapoptosis and anti-injury effects of germacrone through aggravating mitochondria damage, and elevating reactive oxygen species and ferroptosis-related protein levels. Mechanistically, mmu_circRNA_0000309 competitively sponged miR-188-3p, and subsequently promoted glutathione peroxidase 4 (GPX4) expression, thereby inactivating ferroptosis-dependent mitochondrial damage and podocyte apoptosis. In addition, GPX4 overexpression neutralized mmu_circRNA_0000309 silence-mediated mitochondria damage and ferroptosis in germacrone-exposed MPC5 cells. Innovation: We describe the novel effect and mechanism of germacrone on treating DN, which is linked to ferroptosis for the first time. Conclusion: mmu_circRNA_0000309 silence mediates drug resistance to germacrone in DN mice. mmu_circRNA_0000309 sponges miR-188-3p, and subsequently upregulates GPX4 expression, inactivating ferroptosis-dependent mitochondrial function and podocyte apoptosis. Possibly germacrone-based treatment for DN can be further motivated by regulating mmu_circRNA_0000309/miR-188-3p/GPX4 signaling axis. Antioxid. Redox Signal. 36, 740-759.
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Affiliation(s)
- Juan Jin
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
| | - Yunguang Wang
- Department of Critical Care Medicine, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Danna Zheng
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
| | - Mingzhu Liang
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
| | - Qiang He
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
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23
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Fang R, Cao X, Zhu Y, Chen Q. Hsa_circ_0037128 aggravates high glucose-induced podocytes injury in diabetic nephropathy through mediating miR-31-5p/KLF9. Autoimmunity 2022; 55:254-263. [PMID: 35285770 DOI: 10.1080/08916934.2022.2037128] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Circular RNA is a key regulator involved in the progression of many human diseases including diabetic nephropathy (DN). However, the role and mechanism of hsa_circ_0037128 in the occurrence and development of DN remains to be explored. METHODS High glucose (HG)-induced podocytes were used to construct in vitro DN models. The expression of hsa_circ_0037128, microRNA (miR)-31-5p, and Kruppel-like factor 9 (KLF9) was determined using quantitative real-time polymerase chain reaction. The viability and apoptosis of podocytes was measured using cell counting kit 8 assay and flow cytometry. Western blot analysis was performed to examine the protein levels of apoptosis markers and KLF9 in podocytes. Inflammation factors were detected by ELISA assay, and oxidative stress markers were assessed by corresponding Assay Kits. In addition, the interaction between miR-31-5p and hsa_circ_0037128 or KLF9 was verified using dual-luciferase reporter assay and RIP assay. RESULTS Our data suggested that hsa_circ_0037128 was highly expressed in DN patients and HG-induced podocytes. In HG-induced podocytes, hsa_circ_0037128 knockdown could alleviate HG-induced podocytes injury. In the term of mechanism, hsa_circ_0037128 could sponge miR-31-5p to upregulate KLF9. MiR-31-5p inhibitor could reverse the negative regulation of hsa_circ_0037128 silencing on HG-induced podocytes injury. Also, miR-31-5p relieved HG-induced podocytes injury, and this effect also could be reversed by KLF9 overexpression. CONCLUSION In summary, our data showed that hsa_circ_0037128 could promote HG-induced podocytes injury via regulating miR-31-5p/KLF9 axis, showing that hsa_circ_0037128 might be a target for DN treatment.
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Affiliation(s)
- Rong Fang
- Department of Hand Foot Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Xiangchang Cao
- Department of Hand Foot Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Yaping Zhu
- Department of Hand Foot Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Qiming Chen
- Department of Hand Foot Surgery, Huizhou Central People's Hospital, Huizhou, China
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24
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Deng T, Liu Y, Yang Y, Yuan L, Liu F, Wang X, Zhang Q, Xie M. Regulation of microRNA miR-197-3p/CDC28 protein kinase regulatory subunit 1B (CKS1B) axis by Circular RNA hsa_circ_0000285 promotes glioma progression. Bioengineered 2022; 13:4757-4772. [PMID: 35174774 PMCID: PMC8974215 DOI: 10.1080/21655979.2022.2031673] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Circular RNA circ_0000285 is differentially expressed in several malignancies; however, its role in gliomas is under investigation. Reverse transcription quantitative polymerase chain reaction was conducted to evaluate the expression of circ_0000285, miR-197-3p, and CDC28 protein kinase regulatory subunit 1B (CKS1B) in glioma tissues and cells. Cell Counting Kit-8 and Transwell invasion assays coupled with Western blotting analysis using anti-Bax and anti-Bcl-2 antibodies were performed to evaluate cell proliferation, invasion, and apoptosis. Luciferase reporter and AGO2 RNA immunoprecipitation assays were conducted to verify the interaction between miR-197-3p and circ_0000285 or CKS1B. Xenograft tumor growth was evaluated in mice. We noted that circ_0000285 was highly expressed in glioma tissues and cells and that circ_0000285-silencing retarded tumor growth both in vitro and in vivo. This effect was mediated by the binding of circ_0000285 to miR-197-3p, which silenced CKS1B, an essential driver of glioma cell proliferation and invasion. Thus, circ_0000285 boosted glioma progression by regulating the miR-197-3p/CKS1B axis, highlighting a novel competing endogenous RNA circuit of glioma progression.
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Affiliation(s)
- Tao Deng
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Yang Liu
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Yanlong Yang
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Leyong Yuan
- School of Basic Medical Sciences, Hubei University of Medicine, Suizhou, China
| | - Fangfang Liu
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Xiaobo Wang
- Medical Transformation Center, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Qiuying Zhang
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Mingshui Xie
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
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25
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Liang M, Zhang D, Zheng D, He W, Jin J. Exosomes from miR-374a-5p-modified mesenchymal stem cells inhibit the progression of renal fibrosis by regulating MAPK6/MK5/YAP axis. Bioengineered 2022; 13:4517-4527. [PMID: 35137672 PMCID: PMC8973867 DOI: 10.1080/21655979.2022.2033465] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Chronic kidney disease (CKD) in clinical is defined as a gradual loss of kidney function for more than 3 months. The pathologic course of CKD is characterized by extensive renal fibrosis; thus, preventing renal fibrosis is vital for the treatment of CKD. It has been reported that microRNA (miR)-374a-5p was under-expressed in renal venous blood samples from patients with CKD. In addition, it exhibited anti-apoptotic effects in renal tissues suggesting that miR-374a-5p may play an important role in CKD. However, it is not clear whether miR-374a-5p could be delivered to renal cells by exosomes and exerts anti-renal fibrosis effects. To mimic renal fibrosis in vitro, human renal tubular epithelial cell lines (HK-2 cells) were treated by transforming growth factor-β (TGF-β) 1. Reverse transcription-quantitative polymerase-chain reaction (RT-qPCR) or Western blot was carried out to evaluate the mechanism by which miR-374a-5p regulated the development of renal fibrosis. Next, exosomes were isolated using with ultracentrifugation method, and the relationship between miR-374a-5p and MAPK6 was evaluated using dual-Luciferase a reporter assay system. The results indicated TGF-β1 significantly down-regulated the expression of miR-374a-5p in HK-2 cells and miR-374a-5p agomir remarkably inhibited the progression of fibrosis in vitro. In addition, exosomal miR-374a-5p could be internalized by HK-2 cells and obviously enhanced the level of miR-374a-5p in HK-2 cells. Furthermore, exosomal miR-374a-5p prevented the progression of renal fibrosis in vivo by regulating MAPK6/MK5/YAP axis. In conclusion, exosomal miR-374a-5p inhibited the progression of renal fibrosis by regulating MAPK6/MK5/YAP axis.
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Affiliation(s)
- Mingzhu Liang
- Department of Nephrology, The Medical College of Qingdao University, Qingdao, Shandong, China.,Nephrology Center, Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Di Zhang
- Nephrology Center, Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Danna Zheng
- Nephrology Center, Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Wenfang He
- Nephrology Center, Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Juan Jin
- Nephrology Center, Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
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26
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Liu M, Zhao J. Circular RNAs in Diabetic Nephropathy: Updates and Perspectives. Aging Dis 2022; 13:1365-1380. [PMID: 36186139 PMCID: PMC9466972 DOI: 10.14336/ad.2022.0203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/02/2022] [Indexed: 11/30/2022] Open
Abstract
Circular RNAs (circRNAs) are widespread endogenous transcripts lacking 5′-caps and 3′-polyadenylation tails. Their closed-loop structure confers exonuclease resistance and extreme stability. CircRNAs play essential roles in various diseases, including diabetes. Diabetic nephropathy (DN) is the leading cause of end-stage kidney disease and is one of the most common complications of diabetes. CircRNAs are key in DN and therefore important for understanding DN pathophysiology and developing new therapeutic strategies. In the present review, we briefly introduce the characteristics and functions of circRNAs and summarize recent discoveries on how circRNAs participate in DN. Based on these advances, we suggest future perspectives for studying circRNAs in DN to improve DN treatment and management.
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Affiliation(s)
| | - Junli Zhao
- Correspondence should be addressed to: Dr. Junli Zhao, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, China. E-mail: .
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27
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Zhang K, Wan X, Khan MA, Sun X, Yi X, Wang Z, Chen K, Peng L. Peripheral Blood circRNA Microarray Profiling Identities hsa_circ_0001831 and hsa_circ_0000867 as Two Novel circRNA Biomarkers for Early Type 2 Diabetic Nephropathy. Diabetes Metab Syndr Obes 2022; 15:2789-2801. [PMID: 36118796 PMCID: PMC9473550 DOI: 10.2147/dmso.s384054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/05/2022] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Type 2 diabetes mellitus (T2DM) increases the incidence of diabetic nephropathy (DN) and eventually progresses to end-stage renal disease. Circular RNAs (circRNAs) are a class of non-coding RNAs that are promising as diagnostic biomarkers and therapeutic targets for human diseases. The aim of this study was to analyze the differential expression of circRNAs (DECs) in peripheral blood from patients with early type 2 diabetic nephropathy (ET2DN), T2DM and controls, which will facilitate to discover some new biomarkers for ET2DN. PATIENTS AND METHODS Twenty ET2DN patients, 20 T2DM patients, and 20 normal controls were included in this study. Blood samples from 3 random subjects of age- and sex-matched patients in each group, respectively, were used to detect circRNA expression profiles by circRNA microarray, and the circRNA expression of remaining subjects was validated by real-time quantitative polymerase chain reaction (qRT-PCR). Further functional assessment was performed by bioinformatic tools. RESULTS There were 586 DECs in ET2DN vs T2DM group (249 circRNAs were upregulated and 337 circRNAs were downregulated); 176 circRNAs were upregulated and 101 circRNAs were downregulated in T2DM vs control group; 57 circRNAs were upregulated and 5 circRNAs were downregulated in ET2DN vs control group. The functional and pathway enrichment of DECs were analyzed by GO and KEGG. qRT-PCR results revealed that hsa_circ_0001831 and hsa_circ_0000867 were significantly upregulated in ET2DN group compared to both of T2DM and control group. The ROC curve demonstrated that hsa_circ_0001831 and hsa_circ_0000867 have high sensitivity and specificity associated with ET2DN. CONCLUSION Our study showed the expression profiles of circRNAs in ET2DN patients and demonstrated that hsa_circ_0001831 and hsa_circ_0000867 can be used as novel diagnostic biomarkers for ET2DN.
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Affiliation(s)
- Keke Zhang
- Department of Endocrinology, the Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China
| | - Xinxing Wan
- Department of Endocrinology, the Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China
| | - Md Asaduzzaman Khan
- The Research Centre for Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Xiaoying Sun
- Department of Endocrinology, the Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China
| | - Xuan Yi
- Department of Endocrinology, the Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China
| | - Zhouqi Wang
- Department of Endocrinology, the Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China
| | - Ke Chen
- Department of Endocrinology, the Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China
- Ke Chen, Department of Endocrinology, the Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China, Tel +86-731-8861-8239, Email
| | - Lin Peng
- Department of Nephrology, the First Hospital of Changsha, Changsha, People’s Republic of China
- Correspondence: Lin Peng, Department of Nephrology, the First Hospital of Changsha, Changsha, People’s Republic of China, Tel +86-731-8466-7510, Email
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28
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Fan W, Pang H, Xie Z, Huang G, Zhou Z. Circular RNAs in diabetes mellitus and its complications. Front Endocrinol (Lausanne) 2022; 13:885650. [PMID: 35979435 PMCID: PMC9376240 DOI: 10.3389/fendo.2022.885650] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 07/12/2022] [Indexed: 12/21/2022] Open
Abstract
Diabetes mellitus (DM) is an endocrine disorder characterized by a relative or absolute lack of insulin due to the dysfunction or destruction of β-cells. DM is one of the fastest growing challenges to global health in the 21st century and places a tremendous burden on affected individuals and their families and countries. Although insulin and antidiabetic drugs have been used to treat DM, a radical cure for the disease is unavailable. The pathogenesis of DM remains unclear. Emerging roles of circular RNAs (circRNAs) in DM have become a subject of global research. CircRNAs have been verified to participate in the onset and progression of DM, implying their potential roles as novel biomarkers and treatment tools. In the present review, we briefly introduce the characteristics of circRNAs. Next, we focus on specific roles of circRNAs in type 1 diabetes mellitus, type 2 diabetes mellitus, gestational diabetes mellitus and diabetes-associated complications.
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29
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Sun A, Sun N, Liang X, Hou Z. Circ-FBXW12 aggravates the development of diabetic nephropathy by binding to miR-31-5p to induce LIN28B. Diabetol Metab Syndr 2021; 13:141. [PMID: 34863268 PMCID: PMC8642853 DOI: 10.1186/s13098-021-00757-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 11/12/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The involvement of circular RNAs (circRNAs) in diabetic nephropathy (DN) has been gradually identified. In this study, we aimed to explore the functions of circRNA F-box/WD repeat-containing protein 12 (circ-FBXW12) in DN development. METHODS Reverse transcription quantitative polymerase chain reaction (RT-qPCR) assay was performed for the levels of circ-FBXW12, FBXW12 mRNA, microRNA-31-5p (miR-31-5p) and Lin-28 homolog B (LIN28B) mRNA. RNase R assay was used to analyze the stability of circ-FBXW12. Cell Counting Kit-8 (CCK-8) assay, flow cytometry analysis and 5-ethynyl-2'- deoxyuridine (EdU) assay were employed to evaluate cell viability, cell cycle and proliferation, respectively. Enzyme linked immunosorbent assay (ELISA) was done to measure the concentrations of inflammatory cytokines. Western blot assay was conducted for protein levels. Superoxide dismutase (SOD) activity and malondialdehyde (MDA) level were examined with commercial kits. Dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were performed to verify the relationships among circ-FBXW12, miR-31-5p and LIN28B. RESULTS Circ-FBXW12 level was increased in DN patients' serums and high glucose (HG)-induced human mesangial cells (HMCs). Circ-FBXW12 knockdown suppressed cell proliferation, arrested cell cycle, reduced extracellular matrix (ECM) production and oxidative stress in HG-induced HMCs. Circ-FBXW12 was identified as the sponge for miR-31-5p, which then directly targeted LIN28B. MiR-31-5p inhibition reversed circ-FBXW12 knockdown-mediated effects on cell proliferation, cell cycle process, ECM production and oxidative in HG-triggered HMCs. Moreover, miR-31-5p overexpression showed similar results with circ-FBXW12 knockdown in HG-stimulated HMC progression, while LIN28B elevation reversed the effects. CONCLUSION Circ-FBXW12 knockdown suppressed HG-induced HMC growth, inflammation, ECM accumulation and oxidative stress by regulating miR-31-5p/LIN28B axis.
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Affiliation(s)
- Aidong Sun
- Department of Endocrinology, Zibo First Hospital, Zibo, 255200, Shandong, China
| | - Ningshuang Sun
- Chinese Traditional College of Changchun University of Chinese Medicine, Changchun, 130022, Jilin, China
| | - Xiao Liang
- Department of Thoracic Surgery, Zibo Central Hospital, Zibo, 255000, Shandong, People's Republic of China
| | - Zhenbo Hou
- Department of Pathology, Zibo Central Hospital, No. 54 Gongqingtuan West Road, Zhangdian District, Zibo, 255000, Shandong, People's Republic of China.
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30
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Mafi A, Yadegar N, Salami M, Salami R, Vakili O, Aghadavod E. Circular RNAs; powerful microRNA sponges to overcome diabetic nephropathy. Pathol Res Pract 2021; 227:153618. [PMID: 34649056 DOI: 10.1016/j.prp.2021.153618] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 12/13/2022]
Abstract
Diabetic nephropathy (DN), also known as diabetic kidney disease (DKD), is a drastic renal complication of type 1 and type 2 diabetes mellitus (DM). Poorly controlled DM over the years, may disrupt kidneys' blood vessels, leading to the hypertension (HTN) and DN onset. During DN, kidneys' waste filtering ability becomes disturbed. Being on a healthy lifestyle and controlling both DM and HTN are now the best proceedings to prevent or at least delay DN occurrence. Unfortunately, about one-fourth of diabetic individuals eventually experience the corresponding renal failure, and thus it is critical to discover effective diagnostic biomarkers and therapeutic strategies to combat DN. In the past few years, circular RNAs (circRNAs), as covalently closed endogenous non-coding RNAs (ncRNAs), are believed to affect DN pathogenesis in a positive manner. CircRNAs are able to impact different cellular processes and signaling pathways by targeting biological molecules or various molecular mechanisms. Still, as a key regulatory axis, circRNAs can select miRNAs as their molecular targets, in which they are considered as miRNA sponges. In this way, circRNA-induced suppression of particular miRNAs may prevent from DN progression or promotes the DN elimination. Since the expression of circRNAs has also been reported to be increased in DN-associated cells and tissues, they can be employed as either diagnostic biomarkers or therapeutic targets.
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Affiliation(s)
- Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Negar Yadegar
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Marziyeh Salami
- Department of Biochemistry, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
| | - Raziyeh Salami
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran.
| | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran; Department of Clinical Biochemistry, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
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31
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Yu J, Xie D, Huang N, Zhou Q. Circular RNAs as Novel Diagnostic Biomarkers and Therapeutic Targets in Kidney Disease. Front Med (Lausanne) 2021; 8:714958. [PMID: 34604256 PMCID: PMC8481637 DOI: 10.3389/fmed.2021.714958] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/16/2021] [Indexed: 12/14/2022] Open
Abstract
Circular RNAs (circRNAs) are a novel type of non-coding RNAs that have aroused growing attention in this decade. They are widely expressed in eukaryotes and generally have high stability owing to their special closed-loop structure. Many circRNAs are abundant, evolutionarily conserved, and exhibit cell-type-specific and tissue-specific expression patterns. Mounting evidence suggests that circRNAs have regulatory potency for gene expression by acting as microRNA sponges, interacting with proteins, regulating transcription, or directly undergoing translation. Dysregulated expression of circRNAs were found in many pathological conditions and contribute to the pathogenesis and progression of various disorders, including renal diseases. Recent studies have revealed that circRNAs may serve as novel reliable biomarkers for the diagnosis and prognosis prediction of multiple kidney diseases, such as renal cell carcinoma (RCC), acute kidney injury (AKI), diabetic kidney disease (DKD), and other glomerular diseases. Furthermore, circRNAs expressed by intrinsic kidney cells are shown to play a substantial role in kidney injury, mostly reported in DKD and RCC. Herein, we review the biogenesis and biological functions of circRNAs, and summarize their roles as promising biomarkers and therapeutic targets in common kidney diseases.
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Affiliation(s)
- Jianwen Yu
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,National Health Commission Key Laboratory of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Danli Xie
- Department of Nephrology, Shishi General Hospital, Quanzhou, China
| | - Naya Huang
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,National Health Commission Key Laboratory of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qin Zhou
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,National Health Commission Key Laboratory of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Wang J, Yang S, Li W, Zhao M, Li K. Circ_0000491 Promotes Apoptosis, Inflammation, Oxidative Stress, and Fibrosis in High Glucose-Induced Mesangial Cells by Regulating miR-455-3p/Hmgb1 Axis. Nephron Clin Pract 2021; 146:72-83. [PMID: 34474408 DOI: 10.1159/000516870] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 04/22/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is a severe microvascular complication of diabetes. Recently, many circular RNAs can exert crucial roles in DN progression. This study intended to explore the role and mechanism of circ_0000491 in DN. METHODS The DN mouse model was constructed by streptozotocin injection, and the DN cell model was established using high glucose (HG) treatment in mouse mesangial cells (SV40-MES13). The expression of circ_0000491 and microRNA-455-3p (miR-455-3p) was detected by quantitative real-time polymerase chain reaction. Cell apoptosis was evaluated by flow cytometry. The expression levels of high-mobility group box 1 (Hmgb1) protein, apoptosis-related proteins, and fibrosis-related proteins were examined by the Western blot assay. The release of inflammatory cytokines was assessed by enzyme-linked immunosorbent assay. The oxidative stress factors were analyzed by corresponding kits. The predicted interaction between miR-455-3p and circ_0000491 or Hmgb1 was verified by dual-luciferase reporter assay and RNA immunoprecipitation assay. RESULTS Circ_0000491 was overexpressed in the DN mouse model and HG-induced SV40-MES13 cells. Knockdown of circ_0000491 weakened HG-induced apoptosis, inflammation, oxidative stress, and fibrosis in SV40-MES13 cells. miR-455-3p was a direct target of circ_0000491, and miR-455-3p inhibition could reverse the role of circ_0000491 silencing in HG-induced SV40-MES13 cells. Moreover, Hmgb1 was a target gene of miR-455-3p, and miR-455-3p played a protective role against HG-induced cell injury by targeting Hmgb1. In addition, circ_0000491 regulated Hmgb1 expression by sponging miR-455-3p. CONCLUSION Circ_0000491 knockdown inhibited HG-induced apoptosis, inflammation, oxidative stress, and fibrosis in SV40-MES13 cells by regulating miR-455-3p/Hmgb1 axis.
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Affiliation(s)
- Jing Wang
- Department of Nephrology, Baoji People's Hospital, Baoji, China
| | - Shifeng Yang
- Department of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wendong Li
- Department of Nephrology, Baoji People's Hospital, Baoji, China
| | - Ming Zhao
- Department of Endocrine Nephropathy, Aviation Industry 3201 Hospital, Hanzhong, China
| | - Kai Li
- Department of Endocrine Nephropathy, Hanzhong People's Hospital of Shaanxi Province, Hanzhong, China
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Gao R, Ye H, Gao Q, Wang N, Zhou Y, Duan H. Inhibition of circular RNA_0000285 prevents cell proliferation and induces apoptosis in thyroid cancer by sponging microRNA-654-3p. Oncol Lett 2021; 22:673. [PMID: 34345298 PMCID: PMC8323011 DOI: 10.3892/ol.2021.12934] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 05/25/2021] [Indexed: 12/17/2022] Open
Abstract
Thyroid cancer is derived from follicular or thyroid cells and has become the most prevalent malignant tumor of endocrine organs, with increased morbidity and mortality. Circular RNAs (circRNAs) are used as prognostic and predictive markers for different types of cancer. However, the role of circRNA_0000285 in thyroid cancer and its potential molecular mechanism remain unclear. The present study aimed to investigate the roles and underlying molecular mechanism of circRNA_0000285 in thyroid cancer to identify novel treatments for this disease. The target binding site of circRNA_0000285 and microRNA-654-3p (miR-654-3p) were predicted and confirmed via the dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. Thyroid cancer cell viability and apoptosis were determined via the MTT assay and flow cytometric analysis, respectively, whereas the expression levels of circRNA_0000285 and miR-654-3p were determined via reverse transcription-quantitative PCR analysis. In addition, the protein expression levels of the apoptosis-associated proteins, Bax and B-cell lymphoma 2 (Bcl-2), were detected via western blotting. The results of the dual-luciferase reporter and RIP assays demonstrated that miR-654-3p directly targeted circRNA_0000285. The expression levels of circRNA_0000285 and miR-654-3p in thyroid cancer cells (TPC-1 and FTC133) were upregulated and downregulated, respectively. Knockdown of circRNA_0000285 via small interfering (si)RNA inhibited circRNA_0000285 levels and increased miR-654-3p levels. In addition, miR-654-3p expression decreased following transfection with miR-654-3p inhibitor. Functional experiments demonstrated that circRNA_0000285-siRNA decreased thyroid cancer cell proliferation, promoted cell apoptosis, enhanced Bax expression and suppressed Bcl-2 expression. All these effects were reversed following transfection with miR-654-3p inhibitor. Taken together, the results of the present study suggest that circRNA_0000285 plays a vital role in thyroid cancer progression by regulating miR-654-3p, which provides a potential therapeutic target for this disease.
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Affiliation(s)
- Rongjun Gao
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Hui Ye
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Qingjun Gao
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Nanpeng Wang
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yan Zhou
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Haisong Duan
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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Zhang L, Zhang L, Li S, Zhang Q, Luo Y, Zhang C, Huan Q, Zhang C. Overexpression of mm9_circ_013935 alleviates renal inflammation and fibrosis in diabetic nephropathy via the miR-153-3p/NFIC axis. Can J Physiol Pharmacol 2021; 99:1199-1206. [PMID: 34197715 DOI: 10.1139/cjpp-2021-0187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Circ-RBM4 (mm9_circ_013935) has been revealed to be low-expressed in the renal tissues of diabetic nephropathy (DN) mice while its underlying regulatory mechanism remains unexplored. METHODS The high glucose (HG)-treated mouse podocytes were used to establish the DN cell models. A CCK-8 assay was used to examine the viability of mouse podocytes. The expression of proteins related to fibrosis (Collagen I, Collagen III, fibronectin) was detected using western blot. The concentration of inflammation cytokines (TNF-α, IL-1β, IL-8) in mouse podocytes was assessed by ELISA. The interaction between genes was explored by luciferase reporter assays. RESULTS HG treatement decreased the viability and elevated the expression of fibrosis and inflammation factors in mouse podocytes. Circ-RBM4 expression was downregulated in HG-treated mouse podocytes. Circ-RBM4 overexpression reversed HG-induced increase in levels of proteins related to fibrosis and the concentration of inflammation factors. MiR-153-3p was revealed to bind with circ-RBM4 and directly targeted nuclear factor I/C (NFIC) in mouse podocytes. Rescue assays indicated that circ-RBM4 attenuated HG-induced fibrosis and inflammation response in mouse podocytes by inhibiting miR-153-3p expression or upregulating NFIC expression. CONCLUSION Circ-RBM4 alleviated the renal inflamation and renal fibrosis in DN by targeting the miR-153-3p/NFIC axis.
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Affiliation(s)
- Li Zhang
- Shandong Provincial Third Hospital,Cheeloo College of Medicine, Shandong University,, Jinan, China;
| | - Lei Zhang
- Shandong Provincial Third Hospital,Cheeloo College of Medicine, Shandong University,, Jinan, China;
| | - Shancheng Li
- The Third Affiliated hospital of Shandong First Medical University, Jinan, China;
| | - Qin Zhang
- Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan , China;
| | - Yonggang Luo
- Office of big data, College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai, China;
| | - Chunhong Zhang
- Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan , China;
| | - Qin Huan
- Shandong Provincial Third Hospital,Cheeloo College of Medicine, Shandong University,, Jinan, China;
| | - Chunling Zhang
- Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan , China;
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Shao BY, Zhang SF, Li HD, Meng XM, Chen HY. Epigenetics and Inflammation in Diabetic Nephropathy. Front Physiol 2021; 12:649587. [PMID: 34025445 PMCID: PMC8131683 DOI: 10.3389/fphys.2021.649587] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022] Open
Abstract
Diabetic nephropathy (DN) leads to high morbidity and disability. Inflammation plays a critical role in the pathogenesis of DN, which involves renal cells and immune cells, the microenvironment, as well as extrinsic factors, such as hyperglycemia, chemokines, cytokines, and growth factors. Epigenetic modifications usually regulate gene expression via DNA methylation, histone modification, and non-coding RNAs without altering the DNA sequence. During the past years, numerous studies have been published to reveal the mechanisms of epigenetic modifications that regulate inflammation in DN. This review aimed to summarize the latest evidence on the interplay of epigenetics and inflammation in DN, and highlight the potential targets for treatment and diagnosis of DN.
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Affiliation(s)
- Bao-Yi Shao
- Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Shao-Fei Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Hai-Di Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Hai-Yong Chen
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China
- Department of Chinese Medicine, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
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Xu L, Song Q, Ouyang Z, Zhang X, Zhang C. let7f‑5p attenuates inflammatory injury in i n vitro pneumonia models by targeting MAPK6. Mol Med Rep 2020; 23:95. [PMID: 33300070 PMCID: PMC7723174 DOI: 10.3892/mmr.2020.11734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022] Open
Abstract
Pneumonia accounts for ~1.3 million mortalities in children per year worldwide. MicroRNAs are implicated in several diseases, including cancer and pneumonia; however, the role of let7f-5p in pneumonia is not completely understood. In the present study, lipopolysaccharide (LPS) was used to establish an in vitro pneumonia model in A549 and WI-38 cells. The reverse transcription-quantitative PCR (RT-qPCR) and western blotting results demonstrated that let7f-5p expression levels were significantly decreased, whereas MAPK6 expression levels were significantly increased in the peripheral venous blood of patients with pneumonia and in LPS-induced A549 and WI-38 cells compared with healthy volunteers and control cells, respectively. Furthermore, the dual-luciferase reporter assay demonstrated that let7f-5p targeted the 3′-untranslated region of MAPK6. The ELISA and RT-qPCR results demonstrated that let7f-5p mimic ameliorated LPS-induced inflammatory injury in A549 and WI-38 cells, as demonstrated by decreased expression levels of proinflammatory cytokines, including TNF-α and IL-6. In addition, the Cell Counting Kit-8 assay results indicated that let7f-5p mimic ameliorated LPS-induced reductions in cell viability, and the western blotting results demonstrated that let7f-5p mimic reversed LPS-induced activation of the STAT3 signaling pathway. Notably, the aforementioned let7f-5p-mediated effects were reversed by MAPK6 overexpression. Collectively, the results of the present study suggested that let7f-5p inhibited inflammation by targeting MAPK6 in the in vitro pneumonia model, thus let7f-5p may serve as a potential novel therapeutic target for pneumonia.
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Affiliation(s)
- Lin Xu
- Department of Biomedical Science, Guizhou University Medical College, Guiyang, Guizhou 550025, P.R. China
| | - Qingying Song
- Department of Anesthesiology, The Second Affiliated Hospital of Guizhou College of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
| | - Zhanghong Ouyang
- Development Planning Division, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| | - Xiangyan Zhang
- Department of Biomedical Science, Guizhou University Medical College, Guiyang, Guizhou 550025, P.R. China
| | - Cheng Zhang
- Department of Biomedical Science, Guizhou University Medical College, Guiyang, Guizhou 550025, P.R. China
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Dong L, Zhang L, Liu H, Xie M, Gao J, Zhou X, Zhao Q, Zhang S, Yang J. Circ_0007331 knock-down suppresses the progression of endometriosis via miR-200c-3p/HiF-1α axis. J Cell Mol Med 2020; 24:12656-12666. [PMID: 32960511 PMCID: PMC7686986 DOI: 10.1111/jcmm.15833] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 08/05/2020] [Accepted: 08/18/2020] [Indexed: 12/14/2022] Open
Abstract
Endometriosis is considered a benign gynaecological disease with cancer-like characterizations, which has a high incidence among women of reproductive age. However, this disease has so far lacked timely diagnosis and effective treatment owing to its unclear aetiology. In this study, we identified aberrant high expression of circ_0007331 in ectopic endometrial cells by comparing the endometrial samples from patients with and without endometriosis. Further functional experiments revealed that circ_0007331 knock-down effectively suppressed the viability, proliferation and invasive capacity of ectopic endometrial cells. Additionally, we attempted to define the molecular mechanism of circ_0007331 in the initiation and progression of endometriosis. Circ_0007331 acted as a miRNA sponge for miR-200c-3p to indirectly regulate the function of HIF-1α, which plays a key role in the local angiogenesis and hypoxic mechanisms of ectopic endometrium. A final in vivo experiment confirmed that circ_0007331 knock-down could suppress the development of endometriosis through down-regulating the expression of HIF-1α. Collectively, we preliminarily characterized the role and possible insights of circ_0007331/miR-200c-3p/HIF-1α axis in the proliferation and invasion of ectopic endometrial cells. We hope that by exploring the potential function and molecular mechanism of circ_0007331, we can increase our biological insight into the pathogenesis of endometriosis, which will bring the new ways for the diagnosis and therapy of this disease.
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Affiliation(s)
- Lan Dong
- Department of GynecologyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Lu Zhang
- Department of ObstetricsRenmin Hospital of Wuhan UniversityWuhanChina
| | - Hua Liu
- Department of GynecologyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Meiting Xie
- Department of ObstetricsRenmin Hospital of Wuhan UniversityWuhanChina
| | - Jing Gao
- Ultrasound Department of Obstetrics and GynecologyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Xiaoyan Zhou
- Ultrasound Department of Obstetrics and GynecologyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Qinghong Zhao
- Ultrasound Department of Obstetrics and GynecologyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Silin Zhang
- Reproductive Medical CenterRenmin Hospital of Wuhan UniversityWuhanChina
| | - Jing Yang
- Reproductive Medical CenterRenmin Hospital of Wuhan UniversityWuhanChina
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Mou X, Chenv JW, Zhou DY, Liu K, Chen LJ, Zhou D, Hu YB. A novel identified circular RNA, circ_0000491, aggravates the extracellular matrix of diabetic nephropathy glomerular mesangial cells through suppressing miR‑101b by targeting TGFβRI. Mol Med Rep 2020; 22:3785-3794. [PMID: 32901868 PMCID: PMC7533486 DOI: 10.3892/mmr.2020.11486] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/06/2020] [Indexed: 02/06/2023] Open
Abstract
Circular RNAs (circRNAs) have crucial roles in various diseases; however, the mechanisms of action underlying circRNAs in the occurrence and development of diabetic nephropathy (DN) remains largely unknown. The present study investigated the differentially expressed circRNAs in the DN mice kidney cortex using circRNA sequencing and elucidated the role of circRNAs in mesangial cells. It was revealed that 40 circRNAs were unconventionally expressed, including 18 upregulated circRNAs and 22 downregulated circRNAs. Furthermore, circ_0000491 levels were significantly augmented in both DN mice and high glucose (HG, 30 mM)-induced mouse mesangial cells (MES13 cells). Knockdown of circ_0000491 significantly suppressed the increase of vimentin, fibronectin and α-smooth muscle actin, as well as collagen type I, III and IV, whilst reversing the decrease of E-cadherin in HG-induced MES13 cells. It was further revealed that circRNA_0000491 sponged miR-101b and that miR-101b directly targets TGFβRI. In addition, the expression levels of miR-101b were negatively associated with the transcriptional level of circRNA_0000491 and miR-101b inhibitors reversed the suppression of extracellular matrix (ECM)-associated protein synthesis mediated by knocking-down circRNA_0000491. In conclusion, the present study investigated the circRNA_0000491/miR-101b/TGFβRI axis in ECM accumulation and fibrosis-associated protein expression levels of mesangial cells, which suggested that circRNA_0000491 may be beneficial for the development of an effective therapeutic target for DN.
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Affiliation(s)
- Xin Mou
- Department of Endocrinology, Zhejiang Integrated and Western Medicine Hospital, Hangzhou, Zhejiang 310003, P.R. China
| | - Jia Wei Chenv
- Department of Endocrinology, Zhejiang Integrated and Western Medicine Hospital, Hangzhou, Zhejiang 310003, P.R. China
| | - Di Yi Zhou
- Department of Endocrinology, Zhejiang Integrated and Western Medicine Hospital, Hangzhou, Zhejiang 310003, P.R. China
| | - Kaiyuan Liu
- Department of Endocrinology, Zhejiang Integrated and Western Medicine Hospital, Hangzhou, Zhejiang 310003, P.R. China
| | - Li Jun Chen
- Department of Endocrinology, Zhejiang Integrated and Western Medicine Hospital, Hangzhou, Zhejiang 310003, P.R. China
| | - Danyang Zhou
- Department of Endocrinology, Zhejiang Integrated and Western Medicine Hospital, Hangzhou, Zhejiang 310003, P.R. China
| | - Yong Bin Hu
- Department of Endocrinology, Zhejiang Integrated and Western Medicine Hospital, Hangzhou, Zhejiang 310003, P.R. China
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An L, Ji D, Hu W, Wang J, Jin X, Qu Y, Zhang N. Interference of Hsa_circ_0003928 Alleviates High Glucose-Induced Cell Apoptosis and Inflammation in HK-2 Cells via miR-151-3p/Anxa2. Diabetes Metab Syndr Obes 2020; 13:3157-3168. [PMID: 32982348 PMCID: PMC7494388 DOI: 10.2147/dmso.s265543] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is a severe end-stage kidney disease developed from diabetes mellitus. The involvement of circular RNA (circRNAs) in the regulation of DN pathogenesis has been implied, but the underlying mechanism of DN is still lacking. This study aimed to investigate the effect of hsa_circ_0003928 on the inflammation and apoptosis of high glucose (HG)-induced renal tubular cells. METHODS The expression of hsa_circ_0003928, miR-151-3p and Anxa2 in blood samples from DN patients and healthy controls was detected by RT-qPCR. Human renal epithelial cells HK-2 were incubated with D-glucose (30 mmol/l) to establish DN model in vitro. RT-qPCR analysis confirmed the transfection effects and detected the expressions of TNF-α, IL-6 and IL-1β. Western blotting analysis determined the protein expression of Anxa2, Bcl-2, Bax, cleaved caspase-3 and caspase-3. The production of ROS was detected by DCF-DA method and production of inflammatory cytokines was verified by ELISA assay. CCK-8 assay and TUNEL assay were performed to determine cell viability and apoptosis, respectively. Dual-luciferase reporter assay was performed to confirm the relationship between miR-151-3p and hsa_circ_0003928 or Anxa2. RESULTS Hsa_circ_0003928 and Anxa2 mRNA levels were increased, whereas miR-151-3p was decreased in both HG-induced HK-2 cells and patients with DN. Hsa_circ_0003928 knockdown could decrease cell viability loss and apoptosis, increase Bcl-2 expression, and decrease Bax and cleaved caspase-3 expression. Besides, hsa_circ_0003928 knockdown suppressed HG-induced overproduction of ROS, TNF-α, IL-6 and IL-1β. However, the effects made by miR-151-3p inhibition were opposite to those made by hsa_circ_0003928 knockdown. Furthermore, the binding sites between miR-151-3p and hsa_circ_0003928 or Anxa2 were predicted and verified. Protein expression of Anxa2 was suppressed by hsa_circ_0003928 knockdown, which was rescued by miR-151-3p inhibition. CONCLUSION These results demonstrated that hsa_circ_0003928 could act as a sponge of miR-151-3p and regulate HG-induced inflammation and apoptosis partly through regulating Anxa2.
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Affiliation(s)
- Ling An
- Department of Nephrology, Qinghai Provincial People’s Hospital, Xining810007, People’s Republic of China
| | - Dongde Ji
- Department of Gastroenterology, Qinghai Provincial People’s Hospital, Xining810007, People’s Republic of China
| | - Wenbo Hu
- Department of Nephrology, Qinghai Provincial People’s Hospital, Xining810007, People’s Republic of China
| | - Jianrong Wang
- Department of Nephrology, Qinghai Provincial People’s Hospital, Xining810007, People’s Republic of China
| | - Xiuzhen Jin
- Department of Nursing, Qinghai Institute of Health Sciences, Xining810007, People’s Republic of China
| | - Yunfei Qu
- Department of Cardiovascular Surgery, Chongqing University Three Gorges Hospital, Chongqing404000, People’s Republic of China
- Correspondence: Yunfei Qu; Ning Zhang Chongqing University Three Gorges Hospital, No. 165, Xincheng Road, Wanzhou District, Chongqing404000, People’s Republic of China Email ;
| | - Ning Zhang
- Department of General Practice, Chongqing University Three Gorges Hospital, Chongqing404000, People’s Republic of China
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