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Lu J, Ren J, Liu J, Lu M, Cui Y, Liao Y, Zhou Y, Gao Y, Tang F, Wang J, Wang S, Wen L, Song L. High-resolution single-cell transcriptomic survey of cardiomyocytes from patients with hypertrophic cardiomyopathy. Cell Prolif 2024; 57:e13557. [PMID: 37766635 PMCID: PMC10905351 DOI: 10.1111/cpr.13557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/28/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Hypertrophic cardiomyopathy (HCM) is a common inherited cardiovascular disease, which can cause heart failure and lead to death. In this study, we performed high-resolution single-cell RNA-sequencing of 2115 individual cardiomyocytes obtained from HCM patients and normal controls. Signature up- and down-regulated genes in HCM were identified by integrative analysis across 37 patients and 41 controls from our data and published human single-cell and single-nucleus RNA-seq datasets, which were further classified into gene modules by single-cell co-expression analysis. Using our high-resolution dataset, we also investigated the heterogeneity among individual cardiomyocytes and revealed five distinct clusters within HCM cardiomyocytes. Interestingly, we showed that some extracellular matrix (ECM) genes were up-regulated in the HCM cardiomyocytes, suggesting that they play a role in cardiac remodelling. Taken together, our study comprehensively profiled the transcriptomic programs of HCM cardiomyocytes and provided insights into molecular mechanisms underlying the pathogenesis of HCM.
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Affiliation(s)
- Jiansen Lu
- College of Life Sciences, Biomedical Pioneering Innovation CenterMinistry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijingChina
- Beijing Advanced Innovation Center for Genomics, College of Life SciencesPeking UniversityBeijingChina
| | - Jie Ren
- College of Life Sciences, Biomedical Pioneering Innovation CenterMinistry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijingChina
- Beijing Advanced Innovation Center for Genomics, College of Life SciencesPeking UniversityBeijingChina
- Peking‐Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijingChina
| | - Jie Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Minjie Lu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Yueli Cui
- College of Life Sciences, Biomedical Pioneering Innovation CenterMinistry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijingChina
- Beijing Advanced Innovation Center for Genomics, College of Life SciencesPeking UniversityBeijingChina
| | - Yuhan Liao
- College of Life Sciences, Biomedical Pioneering Innovation CenterMinistry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijingChina
- Beijing Advanced Innovation Center for Genomics, College of Life SciencesPeking UniversityBeijingChina
| | - Yuan Zhou
- College of Life Sciences, Biomedical Pioneering Innovation CenterMinistry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijingChina
- Beijing Advanced Innovation Center for Genomics, College of Life SciencesPeking UniversityBeijingChina
| | - Yun Gao
- College of Life Sciences, Biomedical Pioneering Innovation CenterMinistry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijingChina
- Beijing Advanced Innovation Center for Genomics, College of Life SciencesPeking UniversityBeijingChina
| | - Fuchou Tang
- College of Life Sciences, Biomedical Pioneering Innovation CenterMinistry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijingChina
- Beijing Advanced Innovation Center for Genomics, College of Life SciencesPeking UniversityBeijingChina
- Peking‐Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijingChina
| | - Jizheng Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Shuiyun Wang
- Department of Cardiovascular Surgery, Fuwai Hospital, National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Lu Wen
- College of Life Sciences, Biomedical Pioneering Innovation CenterMinistry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijingChina
- Beijing Advanced Innovation Center for Genomics, College of Life SciencesPeking UniversityBeijingChina
| | - Lei Song
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
- Cardiomyopathy ward, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
- National Clinical Research Center for Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
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2
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Zhang Y, Jing Z, Cao X, Wei Q, He W, Zhang N, Liu Y, Yuan Q, Zhuang Z, Dong Y, Hong Z, Li J, Li P, Zhang L, Wang H, Li W. SOCS1, the feedback regulator of STAT1/3, inhibits the osteogenic differentiation of rat bone marrow mesenchymal stem cells. Gene 2022; 821:146190. [PMID: 35124149 DOI: 10.1016/j.gene.2022.146190] [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: 05/31/2021] [Revised: 11/25/2021] [Accepted: 12/06/2021] [Indexed: 11/30/2022]
Abstract
Our study showed that Signal transducer and activator of transcription (STAT)1 and STAT3 phosphorylation was firstly upregulated in the early stage of osteogenic differentiation (OD), and quickly eliminated in hours. Following with phosphorylation of STAT1/3, its downstream feedback regulator Suppressor of cytokine signaling 1 (SOCS1) protein also underwent a quick elevation. Further activation and deactivation of STAT1/3, by administrated with Colivelin and Nifuroxazide in Bone mesenchymal stem cells (BMSCs), increased and decreased SOCS1 expression, inhibited and promoted OD of BMSCs, respectively, as evidenced by Alizarin staining, alkaline phosphatase (ALP) activity, and determination of Run-related transcription factor 2 (RUNX2), Osteocalcin (OCN), ALP, and Bone sialoprotein (BSP). In addition, administration of Colivelin and Nifuroxazide caused and blocked inflammation and apoptosis of BMSCs. To further elucidate the role of STAT1/3-SOCS1 regulatory loop on OD of BMSCs, we overexpressed or silenced SOCS1 in BMSCs during OD. WB data showed that overexpression of SOCS1 repressed STAT1/3 phosphorylation, and knockdown of SOCS1 increased the phosphorylated STAT1/3. Further mechanism study showed that OD of BMSCs was elevated or reduced by SOCS1 overexpression or knockdown, respectively. The findings presenting indicated that the STAT1/3-SOCS1 axis may be exploited as an innovative strategy to enhance osteogenesis in regenerative medicine.
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Affiliation(s)
- Ying Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China; Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China.
| | - Zhenhao Jing
- Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China.
| | - Xiangyang Cao
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Qiushi Wei
- Institute of Orthopaedics of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China; The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China.
| | - Wei He
- Institute of Orthopaedics of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China; The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China.
| | - Ning Zhang
- Hunan University of Chinese Medicine, Zhengzhou, Henan 410208, China.
| | - Youwen Liu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Qiang Yuan
- Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China.
| | - Zhikun Zhuang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China.
| | - Yipping Dong
- Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China.
| | - Zhinan Hong
- Institute of Orthopaedics of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China; The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China.
| | - Jitian Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Peifeng Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Leilei Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Haibin Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China.
| | - Wuyin Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
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3
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Zhou G, Hu T, Du Q, Huang W, Yao C. Nanoparticle-Delivered microRNA-153-3p Alleviates Myocardial Infarction-Induced Myocardial Injury in a Rat Model. ACS Biomater Sci Eng 2022; 8:1696-1705. [PMID: 35255686 DOI: 10.1021/acsbiomaterials.1c01198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Although microRNA-153-3p (miR-153-3p) has been demonstrated to confer protective roles in ischemia/reperfusion injury, its potential role in myocardial infarction (MI) remains undefined. Small-molecule modifiers and nanoparticles loaded with microRNAs (miRNAs) have emerged as potential therapeutic reagents for MI treatment. In this study, we prepared liposome nanoparticles, hyaluronic acid (HA)-cationic liposomes (CLPs) complex, for the delivery of miR-153-3p and delineated the mechanistic actions of miR-153-3p modified by nHA-CLPs in MI-induced injury. Our data suggested that nHA-CLPs-loaded miR-153-3p protected cardiomyocytes against MI-induced cardiomyocyte apoptosis and myocardial injury. miR-153-3p was bioinformatically predicted and experimentally verified to bind to Krüppel-like factor 5 (KLF5) 3'UTR and negatively regulate its expression. Hypoxia was adopted to stimulate MI-induced injury to cardiomyocytes in vitro, in which miR-153-3p presented anti-apoptotic potential. However, restoration of KLF5 reversed this anti-apoptotic effect of miR-153-3p. Furthermore, KLF5 was demonstrated to be an activator of the NF-κB pathway. KLF5 enhanced cardiomyocyte apoptosis and inflammation under hypoxic conditions through NF-κB pathway activation, while nHA-CLPs-loaded miR-153-3p suppressed inflammation by blocking the NF-κB pathway. Collectively, our findings suggested the cardioprotective role of miR-153-3p against MI and the successful delivery of miR-153-3p by nHA-CLPs. The identification of KLF5-mediated activation of NF-κB pathway as an apoptotic and inflammatory mechanism aids in better understanding of the biology of MI and development of novel therapeutic strategies for MI.
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Affiliation(s)
- Guozhong Zhou
- Department of Cardiology, Jiangxi Pingxiang People's Hospital, Pingxiang 337000, P. R. China
| | - Ting Hu
- Department of Hematology, Jiangxi Pingxiang People's Hospital, Pingxiang 337000, P. R. China
| | - Qian Du
- Department of Cardiology, Jiangxi Pingxiang People's Hospital, Pingxiang 337000, P. R. China
| | - Wenjun Huang
- Department of Cardiology, Jiangxi Pingxiang People's Hospital, Pingxiang 337000, P. R. China
| | - Chang Yao
- Department of Cardiology, Jiangxi Pingxiang People's Hospital, Pingxiang 337000, P. R. China
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4
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Wang JP, Li C, Ding WC, Peng G, Xiao GL, Chen R, Cheng Q. Research Progress on the Inflammatory Effects of Long Non-coding RNA in Traumatic Brain Injury. Front Mol Neurosci 2022; 15:835012. [PMID: 35359568 PMCID: PMC8961287 DOI: 10.3389/fnmol.2022.835012] [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: 12/14/2021] [Accepted: 02/08/2022] [Indexed: 11/29/2022] Open
Abstract
Globally, traumatic brain injury (TBI) is an acute clinical event and an important cause of death and long-term disability. However, the underlying mechanism of the pathophysiological has not been fully elucidated and the lack of effective treatment a huge burden to individuals, families, and society. Several studies have shown that long non-coding RNAs (lncRNAs) might play a crucial role in TBI; they are abundant in the central nervous system (CNS) and participate in a variety of pathophysiological processes, including oxidative stress, inflammation, apoptosis, blood-brain barrier protection, angiogenesis, and neurogenesis. Some lncRNAs modulate multiple therapeutic targets after TBI, including inflammation, thus, these lncRNAs have tremendous therapeutic potential for TBI, as they are promising biomarkers for TBI diagnosis, treatment, and prognosis prediction. This review discusses the differential expression of different lncRNAs in brain tissue during TBI, which is likely related to the physiological and pathological processes involved in TBI. These findings may provide new targets for further scientific research on the molecular mechanisms of TBI and potential therapeutic interventions.
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Affiliation(s)
- Jian-peng Wang
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Chong Li
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Wen-cong Ding
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Gang Peng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Ge-lei Xiao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Chen
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
- *Correspondence: Rui Chen,
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Quan Cheng,
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5
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Palioura D, Lazou A, Drosatos K. Krüppel-like factor (KLF)5: An emerging foe of cardiovascular health. J Mol Cell Cardiol 2022; 163:56-66. [PMID: 34653523 PMCID: PMC8816822 DOI: 10.1016/j.yjmcc.2021.10.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/22/2021] [Accepted: 10/07/2021] [Indexed: 02/03/2023]
Abstract
Krüppel-like factors (KLFs) are DNA-binding transcriptional factors, which regulate various pathways that pertain to development, metabolism and other cellular mechanisms. KLF5 was first cloned in 1993 and by 1999, it was reported as the intestinal-enriched KLF. Beyond findings that have associated KLF5 with normal development and cancer, it has been associated with various types of cardiovascular (CV) complications and regulation of metabolic pathways in the liver, heart, adipose tissue and skeletal muscle. Specifically, increased KLF5 expression has been linked with cardiomyopathy in diabetes, end-stage heart failure, and as well as in vascular atherosclerotic lesions. In this review article, we summarize research findings about transcriptional, post-transcriptional and post-translational regulation of KLF5, as well as the role of KLF5 in the biology of cells and organs that affect cardiovascular health either directly or indirectly. Finally, we propose KLF5 inhibition as an emerging approach for cardiovascular therapeutics.
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Affiliation(s)
- Dimitra Palioura
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA;,School of Biology, Aristotle University of Thessaloniki, GR, Greece
| | - Antigone Lazou
- School of Biology, Aristotle University of Thessaloniki, GR, Greece
| | - Konstantinos Drosatos
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
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Zhang Y, Liu S, Ding L, Wang D, Li Q, Li D. Circ_0030235 knockdown protects H9c2 cells against OGD/R-induced injury via regulation of miR-526b. PeerJ 2021; 9:e11482. [PMID: 34820154 PMCID: PMC8603820 DOI: 10.7717/peerj.11482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/27/2021] [Indexed: 11/20/2022] Open
Abstract
Backgrounds Acute myocardial infarction (MI) is the common clinical manifestation of coronary heart disease. Circular RNAs (circRNAs) act key roles in cardiomyocytes growth and angiogenesis. However, their functions in MI are not entirely clear. This research intended to investigate the role and underlying mechanisms of circ_0030235 in H9c2 cells. Methods H9c2 cells were conducted to oxygen glucose deprivation/reperfusion (OGD/R) inducement to establish the MI model. Circ_0030235 and miR-526b expression was tested and altered by qRT-PCR and transfection. Cell viability, apoptosis and reactive oxygen species (ROS) injury were tested by CCK-8 assay, TUNEL assay kit, and ROS Detection Assay Kit, respectively. Assessment of cell injury-related factors was performed by employing ELISA, Mitochondrial Viability Staining and the JC-1-Mitochondrial Membrane Potential Assay Kit. The relationship between circ_0030235 and miR-526b was analyzed by dual luciferase reporter assay. The expression of key proteins was analyzed by western blot. Results Circ_0030235 was highly expressed in OGD/R-induced H9c2 cells. OGD/R inducement cell viability, while accelerated apoptosis. Besides, the level ROS, cell injury-related factors, mitochondrial membrane potential were notably elevated by OGD/R inducement, while mitochondrial viability was remarkably declined. Whereas, these impacts were all noticeably remitted by circ_0030235 knockdown. miR-526b was a target of circ_0030235. Circ_0030235 knockdown-induced impacts were all notably abrogated by miR-526b inhibition, including the activating impacts on PI3K/AKT and MEK/ERK pathways. Conclusions This research implied that circ_0030235 knockdown might remit OGD/R-induced impacts via activation of PI3K/AKT and MEK/ERK pathways and regulation of miR-526b.
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Affiliation(s)
- Yuquan Zhang
- Department of Gerontology, The First Hospital of Qiqihar, Qiqihar, Heilongjiang, China.,Department of Gerontology, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, Heilongjiang, China
| | - Shuzhu Liu
- Department of Gerontology, The First Hospital of Qiqihar, Qiqihar, Heilongjiang, China.,Department of Gerontology, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, Heilongjiang, China
| | - Limin Ding
- Department of Gerontology, The First Hospital of Qiqihar, Qiqihar, Heilongjiang, China.,Department of Gerontology, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, Heilongjiang, China
| | - Dawei Wang
- Department of Gerontology, The First Hospital of Qiqihar, Qiqihar, Heilongjiang, China.,Department of Gerontology, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, Heilongjiang, China
| | - Qiangqiang Li
- Department of Library, The First Hospital of Qiqihar, Qiqihar, Heilongjiang, China.,Department of Library, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, Heilongjiang, China
| | - Dongdong Li
- Department of Gerontology, The First Hospital of Qiqihar, Qiqihar, Heilongjiang, China.,Department of Gerontology, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, Heilongjiang, China
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7
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Zhou Y, Yang J, Chen C, Li Z, Chen Y, Zhang X, Wang L, Zhou J. Polyphyllin Ⅲ-Induced Ferroptosis in MDA-MB-231 Triple-Negative Breast Cancer Cells can Be Protected Against by KLF4-Mediated Upregulation of xCT. Front Pharmacol 2021; 12:670224. [PMID: 34040532 PMCID: PMC8141818 DOI: 10.3389/fphar.2021.670224] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 04/26/2021] [Indexed: 12/14/2022] Open
Abstract
Ferroptosis, which is characterized by the accumulation of intracellular iron and subsequent lipid peroxidation, is a newly discovered form of regulated cell death and plays an important role in tumor suppression. Herein, we showed that Polyphyllin III, which is a major saponin extracted from Paris polyphylla rhizomes, exerted its proliferation-inhibitory effect on MDA-MB-231 triple-negative breast cancer cells mainly through ACSL4-mediated lipid peroxidation elevation and ferroptosis induction. ACSL4 deletion partly attenuated Polyphyllin III-induced ferroptosis. Polyphyllin III treatment also induced KLF4-mediated protective upregulation of xCT, which is the negative regulator of ferroptosis. Interestingly, combination with the xCT inhibitor sulfasalazine (SAS) or downregulation of KLF4 sensitized MDA-MB-231 cells to Polyphyllin III. Furthermore, in vivo xenograft models, SAS significantly sensitized MDA-MB-231 breast cancer cells to Polyphyllin III, likely by enhancing intracellular lipid peroxidation and ferroptosis. The results of this study collectively demonstrated that Polyphyllin III exerts its anticancer effect by inducing ferroptosis via ACSL4 in MDA-MB-231 breast cancer cells. More importantly, we observed for the first time that KLF4-mediated xCT upregulation serves as negative feedback during ferroptosis progression, which might contribute to drug resistance in cancer treatment.
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Affiliation(s)
- Yulu Zhou
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Jingjing Yang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Cong Chen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Zhaoqing Li
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Yongxia Chen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Xun Zhang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Linbo Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Jichun Zhou
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
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8
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Dong H, Jiang G, Zhang J, Kang Y. MiR-506-3p Promotes the Proliferation and Migration of Vascular Smooth Muscle Cells via Targeting KLF4. Pathobiology 2021; 88:277-288. [PMID: 33882484 DOI: 10.1159/000513506] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 12/01/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The dysregulation of proliferation and migration of vascular smooth muscle cells (VSMCs) is one of the major causes of atherosclerosis (AS). Accumulating studies confirm that Kruppel-like factor 4 (KLF4) can regulate the proliferation and differentiation of VSMCs through multiple signaling pathways. However, the mechanism of KLF4 dysregulation remains unknown. METHODS Apolipoprotein E-knockout (ApoE-/-) mice and human VSMCs were used to establish AS animal model and cell model, respectively. qRT-PCR was employed to determine the expressions of miR-506-3p and KLF4. Cell Counting Kit -8, Transwell, TUNEL assays, and flow cytometry were performed to measure the proliferation, migration, and apoptosis of VSMCs. The upstream miRNAs of KLF4 were predicted by microT, miRanda, miRmap, and TargetScan databases. The interaction between KLF4 and miR-506-3p was confirmed using qRT-PCR, Western blot, and luciferase reporter gene assay. RESULTS KLF4 expression was significantly decreased in the VSMCs of ApoE-/- mice fed with high-fat diet and in human VSMCs treated with oxidized low-density lipoprotein in time-dependent and dose-dependent manners. The transfection of miR-506-3p mimics or KLF4 shRNA promoted the proliferation and migration of VSMCs but inhibited the apoptosis while miR-506-3p inhibitors and pcDNA3.1-KLF4 exerted opposite effects. Additionally, KLF4 was confirmed as a target gene of miR-506-3p and could be negatively regulated by miR-506-3p. CONCLUSION MiR-506-3p can promote the proliferation and migration of VSMCs via targeting KLF4, which can probably contribute to the pathogenesis of AS.
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Affiliation(s)
- Hang Dong
- Department of Physiology & Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an, China.,Department of Hematology, Shenzhen Seventh People's Hospital, Shenzhen, China
| | - Guangyu Jiang
- Department of Neurosurgery, Shenzhen SAMII Medical Center, Shenzhen, China
| | - Jiayue Zhang
- Department of Neurology, Shenzhen SAMII Medical Center, Shenzhen, China
| | - Yuming Kang
- Department of Physiology & Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an, China
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9
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Xie Z, Chen J, Wang C, Zhang J, Wu Y, Yan X. Current knowledge of Krüppel-like factor 5 and vascular remodeling: providing insights for therapeutic strategies. J Mol Cell Biol 2021; 13:79-90. [PMID: 33493334 PMCID: PMC8104942 DOI: 10.1093/jmcb/mjaa080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/23/2020] [Accepted: 12/08/2020] [Indexed: 12/18/2022] Open
Abstract
Vascular remodeling is a pathological basis of various disorders. Therefore, it is necessary to understand the occurrence, prevention, and treatment of vascular remodeling. Krüppel-like factor 5 (KLF5) has been identified as a significant factor in cardiovascular diseases during the last two decades. This review provides a mechanism network of function and regulation of KLF5 in vascular remodeling based on newly published data and gives a summary of its potential therapeutic applications. KLF5 modulates numerous biological processes, which play essential parts in the development of vascular remodeling, such as cell proliferation, phenotype switch, extracellular matrix deposition, inflammation, and angiogenesis by altering downstream genes and signaling pathways. Considering its essential functions, KLF5 could be developed as a potent therapeutic target in vascular disorders.
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Affiliation(s)
- Ziyan Xie
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Junye Chen
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Chenyu Wang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Jiahao Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yanxiang Wu
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xiaowei Yan
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
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10
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Zheng F, Liu T, Zhu J, Xie Y, Wu L, Lin Z. FoxF1 protects rats from paraquat-evoked lung injury following HDAC2 inhibition via the microRNA-342/KLF5/IκB/NF-κB p65 axis. Exp Cell Res 2020; 395:112208. [PMID: 32758486 DOI: 10.1016/j.yexcr.2020.112208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 07/27/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE Forkhead box f1 (FoxF1), a transcription factor, was implicated in lung development. However, the molecular mechanism of FoxF1 in lung injury, specifically in injury caused by paraquat (PQ), one of the most frequently used herbicides, is unknown. Accordingly, we performed this study to investigate whether FoxF1 attenuates PQ-induced lung injury and to determine the possible mechanism. METHODS We used PQ-treated Beas-2B cells to measure the expression of FoxF1. Later, ChIP-qPCR was applied to detect the levels of histone acetylation in cells, followed by the validation of the relationship between histone deacetylase-2 (HDAC2) and FoxF1. Subsequently, the correlation between FoxF1 and microRNA (miR)-342 and the downstream mechanism of miR-342 were evaluated by bioinformatics analysis. The apoptosis and the content of reactive oxygen species (ROS) in PQ-treated cells were detected to evaluate the roles of HDAC2, FoxF1 and miR-342 in vitro. Finally, a rat model was developed to evaluate the effects of HDAC2, miR-342 and Krüppel-like factor 5 (KLF5) on PQ-induced lung injury in vivo. RESULTS PQ treatment significantly enhanced FoxF1 promoter deacetylation, thereby inhibiting FoxF1 expression. After inhibition of HDAC2 activity, apoptosis and oxidative stress induced by PQ were significantly reversed. Nevertheless, further inhibition of miR-342 or overexpression of KLF5 promoted apoptosis and oxidative stress induced by PQ, and IκB/NF-κB p65 signaling was significantly activated after PQ treatment. CONCLUSION PQ treatment inhibited miR-342 expression by promoting HDAC2-induced deacetylation of the FoxF1 promoter, thereby promoting KLF5 expression and the IκB/NF-κB p65 signaling activation, and finally exacerbating PQ-induced lung injury in rats.
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Affiliation(s)
- Fenshuang Zheng
- Department of Emergency Medicine, The Second People's Hospital of Yunnan Province, Kunming, 650021, Yunnan, PR China
| | - Tao Liu
- Department of Emergency Medicine, The Second People's Hospital of Yunnan Province, Kunming, 650021, Yunnan, PR China
| | - Junbo Zhu
- Department of Emergency Medicine, The Second People's Hospital of Yunnan Province, Kunming, 650021, Yunnan, PR China
| | - Yuan Xie
- Department of Emergency Medicine, The Second People's Hospital of Yunnan Province, Kunming, 650021, Yunnan, PR China
| | - Lianjun Wu
- Department of Emergency, Wuding County People's Hospital, Chuxiong, 651600, Yunnan, PR China
| | - Zhaoheng Lin
- Department of Critical Care Medicine, People's Hospital of Xishuangbanna Dai Nationality Autonomous Prefecture, Jinghong, 666100, Yunnan, PR China.
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11
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Ghosh A, Shcherbik N. Effects of Oxidative Stress on Protein Translation: Implications for Cardiovascular Diseases. Int J Mol Sci 2020; 21:E2661. [PMID: 32290431 PMCID: PMC7215667 DOI: 10.3390/ijms21082661] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases (CVDs) are a group of disorders that affect the heart and blood vessels. Due to their multifactorial nature and wide variation, CVDs are the leading cause of death worldwide. Understanding the molecular alterations leading to the development of heart and vessel pathologies is crucial for successfully treating and preventing CVDs. One of the causative factors of CVD etiology and progression is acute oxidative stress, a toxic condition characterized by elevated intracellular levels of reactive oxygen species (ROS). Left unabated, ROS can damage virtually any cellular component and affect essential biological processes, including protein synthesis. Defective or insufficient protein translation results in production of faulty protein products and disturbances of protein homeostasis, thus promoting pathologies. The relationships between translational dysregulation, ROS, and cardiovascular disorders will be examined in this review.
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Affiliation(s)
- Arnab Ghosh
- Department for Cell Biology and Neuroscience, School of Osteopathic Medicine, Rowan University, 2 Medical Center Drive, Stratford, NJ 08084, USA
| | - Natalia Shcherbik
- Department for Cell Biology and Neuroscience, School of Osteopathic Medicine, Rowan University, 2 Medical Center Drive, Stratford, NJ 08084, USA
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12
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Xiong L, Zhou H, Zhao Q, Xue L, Al-Hawwas M, He J, Wu M, Zou Y, Yang M, Dai J, He M, Wang T. Overexpression of miR-124 Protects Against Neurological Dysfunction Induced by Neonatal Hypoxic-Ischemic Brain Injury. Cell Mol Neurobiol 2020; 40:737-750. [PMID: 31916069 DOI: 10.1007/s10571-019-00769-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 11/29/2019] [Indexed: 12/20/2022]
Abstract
Neonatal hypoxic-ischemic encephalopathy (HIE) is a major cause of lifelong disabilities worldwide, without effective therapies and clear regulatory mechanisms. MicroRNAs (miRNAs) act as a significant regulator in neuroregeneration and neuronal apoptosis, thus holding great potential as therapeutic targets in HIE. In this study, we established the hypoxia-ischemia (HI) model in vivo and oxygen-glucose deprivation (OGD) model in vitro. Zea-longa score and magnetic resonance imaging were applied to verify HI-induced neuronal dysfunction and brain infarction. Subsequently, a miRNA microarray analysis was employed to profile miRNA transcriptomes. Down-regulated miR-124 was found 24 h after HIE, which corresponded to the change in PC12, SHSY5Y, and neurons after OGD. To determine the function of miR-124, mimics and lentivirus-mediated overexpression were used to regulate miR-124 in vivo and in vitro, respectively. Our results showed that miR-124 overexpression obviously promoted cell survival and suppressed neuronal apoptosis. Further, the memory and neurological function of rats was also obviously improved at 1 and 2 months after HI, indicated by the neurological severity score, Y-maze test, open field test, and rotating rod test. Our findings showed that overexpression of miR-124 can be a promising new strategy for HIE therapy in future clinical practice.
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Affiliation(s)
- Liulin Xiong
- Department of Anesthesiology, The Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.,School of Pharmacy and Medical Sciences, Faculty of Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Haoli Zhou
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Qiong Zhao
- Department of Anesthesiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, Guangdong, China
| | - Lulu Xue
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Mohammed Al-Hawwas
- School of Pharmacy and Medical Sciences, Faculty of Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Jingyuan He
- Institute of Neuroscience, Animal Zoology Department, Kunming Medical University, Kunming, 650031, China
| | - Maxiu Wu
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Yu Zou
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Mingan Yang
- Division of Biostatistics and Epidemiology, School of Public Health, San Diego State University, San Diego, 92182, USA
| | - Jing Dai
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Manxi He
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, 611731, China.
| | - Tinghua Wang
- Department of Anesthesiology, The Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China. .,The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, 611731, China. .,Institute of Neuroscience, Animal Zoology Department, Kunming Medical University, Kunming, 650031, China.
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13
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Zhu B, Cheng X, Jiang Y, Cheng M, Chen L, Bao J, Tang X. Silencing of KCNQ1OT1 Decreases Oxidative Stress and Pyroptosis of Renal Tubular Epithelial Cells. Diabetes Metab Syndr Obes 2020; 13:365-375. [PMID: 32104033 PMCID: PMC7025682 DOI: 10.2147/dmso.s225791] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 12/17/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) can regulate the progression of DN. This research aimed to study the effect of lncRNA KCNQ1OT1 on the oxidative stress and pyroptosis of the renal tubular epithelial cells induced by high glucose (HG). METHODS RT-qPCR analysis detected the KCNQ1OT1 expression in serum with DN and HG-induced HK-2 cells, detect the expression of NLRP3, cleaved-caspase1, P-caspase1, IL-1β, p-IL-1β and GSDMD-N in HG-induced HK-2 cells, and confirm the transfection effects. The expression of NLRP3, cleaved-caspase1, P-caspase1, IL-1β, p-IL-1β and GSDMD-N in HG-induced HK-2 cells was also analyzed by Western blot analysis. ELISA assay detected the levels of TNF-α, IL-6 and MCP-1. The levels of ROS, MDA and SOD were determined by respective ELISA kits and ROS was also detected by the ROS assay kit (containing DCFH-DA). RESULTS We found that KCNQ1OT1 was increased in the plasma of patients with DN and HG-induced HK-2 cells and KCNQ1OT1 interference could decrease the inflammation, oxidative stress and pyroptosis of HG-induced HK-2 cells. In addition, KCNQ1OT1 directly targets miR-506-3p. MiR-506-3p was downregulated in the plasma of patients with DN and HG-induced HK-2 cells and KCNQ1OT1 interference promoted the expression of miR-506-3p. MiR-506-3p overexpression suppressed the inflammation, oxidative stress and pyroptosis of HG-induced HK-2 cells. CONCLUSION This study demonstrated that downregulation of KCNQ1OT1 inhibited the inflammation, oxidative stress and pyroptosis of HG-induced HK-2 cells by up-regulating the expression of miR-506-3p, which provide new insights into the treatment of DN.
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Affiliation(s)
- Bei Zhu
- Department of Endocrinology, The First Affiliated Hospital of Soochow University, Suzhou 215006, People’s Republic of China, Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
| | - Xingbo Cheng
- Department of Endocrinology, The First Affiliated Hospital of Soochow University, Suzhou215006, People’s Republic of China
- Correspondence: Xingbo Cheng Department of Endocrinology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou215006, People’s Republic of China Email
| | - Yilan Jiang
- Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
| | - Ming Cheng
- School of Rail Transportation, Soochow University, Suzhou215131, People’s Republic of China
- Ming Cheng School of Rail Transportation, Soochow University, 8 Ji Xue Road., Xiangcheng District, Suzhou215131, People’s Republic of China Email
| | - Luping Chen
- Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
| | - Jiajun Bao
- Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
| | - Xiaofeng Tang
- Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
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14
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Liu Y, Li Y, Ni J, Shu Y, Wang H, Hu T. MiR-124 attenuates doxorubicin-induced cardiac injury via inhibiting p66Shc-mediated oxidative stress. Biochem Biophys Res Commun 2020; 521:420-426. [DOI: 10.1016/j.bbrc.2019.10.157] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 10/21/2019] [Indexed: 01/17/2023]
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15
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Wang J, Du Y, Deng J, Wang X, Long F, He J. MicroRNA-506 Is Involved in Regulation of the Occurrence of Lipopolysaccharides (LPS)-Induced Pulpitis by Sirtuin 1 (SIRT1). Med Sci Monit 2019; 25:10008-10015. [PMID: 31877121 PMCID: PMC6944165 DOI: 10.12659/msm.918172] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Toothache often occurs with pulpitis. Lipopolysaccharide (LPS) is produced by gram-negative bacteria, and its accumulation is related to clinical symptoms of pain. MicroRNAs (miRNAs) display anti-inflammatory potential due to their direct regulation of cellular protein expression, which can promote inflammatory changes in dental pulp tissues. However, the mechanism of LPS-induced pulpitis is still unclear. Material/Methods In this study, dental pulp stem cells (DPSCs) were separated and cultured from rat dental pulp tissues; then, LPS was administered to induce inflammation and activate the TLR4 pathway. Results It was found that miR-506 was upregulated following LPS treatment in DPSCs. The inhibition of miR-506 in LPS-treated DPSCs led to attenuated inflammation and deactivation of the TLR4 pathway. Furthermore, the bioinformatic analysis and dual-luciferase reporter gene assay indicated that miR-506 could target the 3′-UTR of sirtuin 1 (SIRT1). Additionally, SIRT1 decreased in LPS-treated DPSCs, and miR-506 transfection resulted in SIRT1 upregulation. SIRT1 overexpression showed a similar inhibitory effect as that of miR-506 downregulation on inflammation and TLR4 activation in DPSCs. Conclusions In brief, miR-506 can protect dental pulp in LPS-induced inflammation by inhibiting the SIRT1-mediated TLR4 pathway.
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Affiliation(s)
- Jun Wang
- Stomatological Center, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
| | - Yi Du
- Department of Nursing, The First Hospital of Lanzhou University, Lanzhou, Gansu, China (mainland)
| | - Junhong Deng
- Department of Stomatology, The Second People's Hospital of Lanzhou City, Lanzhou, Gansu, China (mainland)
| | - Xin Wang
- Departments of Health and Social Care, The Second People's Hospital of Lanzhou City, Lanzhou, Gansu, China (mainland)
| | - Fei Long
- Stomatological Center, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
| | - Jianmin He
- Stomatological Center, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
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16
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Zhu L, Zhang N, Yan R, Yang W, Cong G, Yan N, Ma W, Hou J, Yang L, Jia S. Hyperhomocysteinemia induces vascular calcification by activating the transcription factor RUNX2 via Krüppel-like factor 4 up-regulation in mice. J Biol Chem 2019; 294:19465-19474. [PMID: 31628194 DOI: 10.1074/jbc.ra119.009758] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 10/16/2019] [Indexed: 01/09/2023] Open
Abstract
One of the main characteristics of atherosclerosis is vascular calcification, which is linked to adverse cardiovascular events. Increased homocysteine (Hcy), a feature of hyperhomocysteinemia, is correlated with advanced vascular calcification and phenotypic switching of vascular smooth muscle cells (VSMCs). Oxidative stress and high phosphate levels also induce VSMC calcification, suggesting that the Krüppel-like factor 4 (KLF4) signaling pathway may also contribute to vascular calcification. In this study, we investigated this possibility and the role and mechanisms of Hcy in vascular calcification. We found that in atherosclerotic apolipoprotein E-deficient (ApoE-/-) mice, Hcy significantly increases vascular calcification in vivo, as well as VSMC calcification in vitro Of note, the Hcy-induced VSMC calcification was correlated with elevated KLF4 levels. Hcy promoted KLF4 expression in calcified atherosclerotic lesions in vivo and in calcified VSMCs in vitro shRNA-mediated KLF4 knockdown blocked the Hcy-induced up-regulation of runt-related transcription factor 2 (RUNX2) and VSMC calcification. RUNX2 inhibition abolished Hcy-induced VSMC calcification. Using ChIP analysis, we demonstrate that KLF4 interacts with RUNX2, an interaction promoted by Hcy stimulation. Our experiments also revealed that the KLF4 knockdown attenuates Hcy-induced RUNX2 transactivity, indicating that KLF4 is important in modulating RUNX2 transactivity. These findings support a role for Hcy in regulating vascular calcification through a KLF4-RUNX2 interaction and indicate that Hcy-induced, enhanced RUNX2 transactivity increases VSMC calcification. These insights reveal possible opportunities for developing interventions that prevent or manage vascular calcification.
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Affiliation(s)
- Lili Zhu
- Department of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750001, China.,Institute of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Na Zhang
- Department of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Ru Yan
- Institute of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Wenjuan Yang
- Heart Centre, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Guangzhi Cong
- Heart Centre, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Ning Yan
- Heart Centre, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Wanrui Ma
- Department of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Jianjun Hou
- Department of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Libo Yang
- Department of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Shaobin Jia
- Institute of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, China .,Heart Centre, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, China
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Suppression of miR-1197-3p attenuates H 2O 2-induced apoptosis of goat luteinized granulosa cells via targeting PPARGC1A. Theriogenology 2019; 132:72-82. [PMID: 31003067 DOI: 10.1016/j.theriogenology.2019.04.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/06/2019] [Accepted: 04/06/2019] [Indexed: 12/26/2022]
Abstract
Peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PPARGC1A) acts as a powerful coactivator of many transcriptional factors that relate to granulosa cell (GC) apoptosis. In this study, the miRNAs mediating goat follicular atresia and luteinized granulosa cell (LGC) apoptosis induced by hydrogen peroxide (H2O2) via PPARGC1A were investigated. Our results showed that miR-1197-3p targeted PPARGC1A was predicted by bioinformatics algorithm and verified by luciferase reporter assay. In addition, miR-1197-3p promoted goat LGC apoptosis via PPARGC1A through mitochondrial-dependent apoptosis pathway, and these effects could be restored by PPARGC1A overexpression. Moreover, H2O2-induced LGC apoptosis significantly upregulated miR-1197-3p expression and downregulated PPARGC1A level. Pretreatment of miR-1197-3p inhibitor alleviated LGC apoptosis induced by 400 μM H2O2 for 12 h, and preserved the mitochondrial membrane potential by increasing PPARGC1A expression. In conclusion, miR-1197-3p might act as an essential regulator of goat LGC apoptosis potentially via the mitochondrial-dependent apoptosis pathway by targeting PPARGC1A.
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18
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Miao X, Liang A. Retracted: Knockdown of long noncoding RNA GAS5 attenuates H 2 O 2 -induced damage in retinal ganglion cells through upregulating miR-124: Potential role in traumatic brain injury. J Cell Biochem 2019; 120:2313-2322. [PMID: 30450834 DOI: 10.1002/jcb.27560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 08/02/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Optic nerve injury is one of the most common and serious complications in traumatic brain injury (TBI). Alleviating degree of optic nerve injury is important to cure of TBI. This study explored the role of long noncoding RNA (lncRNA) GAS5 in mice retinal ganglion cells (RGCs) suffered to H2 O 2 injury. METHODS Primary RGC (PRGCs) were treated with H2 O 2 to simulate an in vitro oxidation stress model. LncRNA GAS5 and miR-124 expressions were knocked down by cell transfection with short-hairpin RNA against GAS5 and miR-124 inhibitor, and the transfection efficiency was determined by qRT-PCR. Cell viability, apoptotic cell rate, and production of reactive oxygen species (ROS) was analyzed by CCK-8 assay, PI/FITC-Annexin V method, and DCFH-DA fluorometric assay. Cell apoptosis-associated proteins as well as activations of JAK/STAT3 signaling and JNK signaling were analyzed by Western blot. RESULTS H2 O 2 treatment-induced cell injury was inhibited by lncRNA GAS5 silence. Specifically, knockdown of GAS5 improved viability of primary PRGCs, inhibited apoptosis, decreased ROS expression, increased antiapoptosis proteins' expressions, and decreased proapoptosis proteins' expressions. It was also found that miR-124 inhibitor treatment impaired the cell protective effect of GAS5 silence, indicating low level of GAS5 protected PRGCs via upregulating miR-124. GAS5 silence might exert cytoprotection effect via activating JAK/STAT3 signaling pathway and inhibiting activation of JNK signaling pathway. CONCLUSION Knocking down lncRNA GAS5 alleviated H2 O 2 -induced injury in PRGCs via upregulation of miR-124, which might dependent on activation of JAK/STAT3 signaling pathway and inhibition of JNK signaling pathway.
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Affiliation(s)
- Xinglu Miao
- Department of Neurosurgery, Jining No. 1 People's Hospital, Jining, Shandong, China
| | - Anran Liang
- Department of Ophthalmology, Jining No. 1 People's Hospital, Jining, Shandong, China
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