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Cao Y, Zheng M, Sewani MA, Wang J. The miR-17-92 cluster in cardiac health and disease. Birth Defects Res 2024; 116:e2273. [PMID: 37984445 DOI: 10.1002/bdr2.2273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023]
Abstract
MicroRNAs (miRs) are small noncoding RNAs that play important roles in both physiological and pathological processes through post-transcriptional regulation. The miR-17-92 cluster includes six individual members: miR-17, miR-18a, miR-19a, miR-19b-1, miR-20a, and miR-92a-1. The miR-17-92 cluster has been extensively studied and reported to broadly function in cancer biology, immunology, neurology, pulmonology, and cardiology. This review focuses on its roles in heart development and cardiac diseases. We briefly introduce the nature of the miR-17-92 cluster and its crucial roles in both normal development and the pathogenesis of various diseases. We summarize the recent progress in understanding the versatile roles of miR-17-92 during cardiac development, regeneration, and aging. Additionally, we highlight the indispensable roles of the miR-17-92 cluster in pathogenesis and therapeutic potential in cardiac birth defects and adult cardiac diseases.
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Affiliation(s)
- Yuhan Cao
- Department of Pediatrics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
- MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, The University of Texas, Houston, Texas, USA
| | - Mingjie Zheng
- Department of Pediatrics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Maham A Sewani
- Department of BioSciences, Wiess School of Natural Sciences, Rice University, Houston, Texas, USA
| | - Jun Wang
- Department of Pediatrics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
- MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, The University of Texas, Houston, Texas, USA
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2
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Chen D, Zhang Z, Lu X, Yang X. Long non-coding RNA SNHG15 regulates cardiomyocyte apoptosis after hypoxia/reperfusion injury via modulating miR-188-5p/PTEN axis. Arch Physiol Biochem 2023; 129:283-290. [PMID: 32970504 DOI: 10.1080/13813455.2020.1819336] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Nowadays the most effective way to cure myocardial infarction (MI) is reperfusion, which inevitably leads to cardiomyocyte apoptosis. In this study, we discussed the functions of SNHG15 in regulating cardiomyocyte apoptosis through the modulation of miR-188-5p/PTEN axis. We examined the links between SNHG15 and miR-188-5p/PTEN in mice with MI. Extensive experiments, measurements and comparisons were performed, including RT-PCR, western blotting, luciferase reporter assay, flow cytometry analysis etc. Through a series of comparisons and analysis, we discovered that SNHG15 could interact with the miR-188-5p/PTEN axis and impact the cellular physiology of cardiomyocyte apoptosis. PTEN was upregulated in hypoxia cells, but this effect was attenuated by miR-188-5p. MiR-188-5p could combine with SNHG15 and PTEN, and form a SNHG15-miR-188-5p-PTEN axis, which regulated the apoptosis of MCs. These results suggest that LncRNA SNHG15 regulates cardiomyocyte apoptosis induced by hypoxia or reperfusion injury through modulating of miR-188-5p/PTEN axis.
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Affiliation(s)
- Dapeng Chen
- Heart Center, General Hospital of Ningxia Medical University, Yinchuan, PR China
| | - Zhengjun Zhang
- Heart Center, General Hospital of Ningxia Medical University, Yinchuan, PR China
| | - Xiaorui Lu
- Department of Internal Medicine-Cardiovascular, Ningxia Yongning County People's Hospital, Ningxia, PR China
| | - Xinbin Yang
- Department of Internal Medicine-Cardiovascular, Ningxia Yongning County People's Hospital, Ningxia, PR China
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3
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Zeng H, Chen YX. MiR-19b-3p Inhibits Hypoxia-Ischemia Encephalopathy by Inhibiting SOX6 Expression via Activating Wnt/β-catenin Pathway. Neurochem Res 2023; 48:874-884. [PMID: 36369428 DOI: 10.1007/s11064-022-03812-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Hypoxic-ischemic encephalopathy (HIE) is a detrimental factor in infant death and chronic disease. The specific pathogenesis is not entirely clear. Therefore, exploring the pathogenesis of HIE is critical. The expression of miR-19b-3p and SOX6 in umbilical blood of HIE patients was detected by qRT-PCR assay. HT22 cells were triggered with oxygen-glucose deprivation/reoxygenation (OGD/R) to construct the HIE cell model. Cell Counting Kit-8 (CCK-8) assay was used to estimate viability. SOD and MDA levels were detected by enzyme linked immunosorbent assay. Flow cytometry was implemented to ascertain neurocyte apoptosis. Cellular β-catenin immunofluorescence staining was used to detect the expression and distribution of β-catenin protein. Wnt signaling pathway activation was detected by TOPFlash/FOPFlash luciferase reporter assay. The targeting correlation of SOX6 and miR-19b-3p was corroborated by dual-luciferase reporter gene assay and RNA pull-down assay. MiR-19b-3p expression was once down-regulated, whilst SOX6 expression was up-regulated in HIE patients. MiR-19b-3p overexpression promoted cell proliferation, repressed cell apoptosis, oxidative stress response, and Wnt/β-catenin pathway activation in OGD/R-triggered HT22 cells. MiR-19b-3p negatively regulated SOX6 expression. SOX6 knockdown improved OGD/R-triggered HT22 cells injury via Wnt/β-catenin pathway activation. MiR-19b-3p overexpression suppressed OGD/R-triggered HT22 cell injury via inhibiting SOX6 expression via activating Wnt/β-catenin pathway.
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Affiliation(s)
- Hao Zeng
- Department of Neurosurgery, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, Guangdong, People's Republic of China
| | - Yu-Xia Chen
- Department of Neontal Development, Shenzhen Longhua District Central Hospital, No. 187, Guanlan Avenue, Longhua District, Shenzhen, 518110, Guangdong, People's Republic of China.
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4
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Liao B, Dong S, Xu Z, Gao F, Zhang S, Liang R. MiR-19b-3p regulated by BC002059/ABHD10 axis promotes cell apoptosis in myocardial infarction. Biol Direct 2022; 17:20. [PMID: 35978367 PMCID: PMC9386969 DOI: 10.1186/s13062-022-00333-x] [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: 04/15/2022] [Accepted: 07/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recently, microRNAs (miRNAs), have been extensively investigated in diseases. The upregulated expression of miR-19b-3p has been validated in patients with hypertrophic cardiomyopathy. Nonetheless, it regulatory mechanism in myocardial infarction (MI) is still unclear. PURPOSE This research aimed to investigate the role and molecular regulation mechanism of miR-19b-3p in MI. METHODS QRT-PCR and western blot assays measured RNA and protein expression. Cell apoptosis were tested by flow cytometry and TUNEL assays. Cell viability was measured by trypan blue staining method. RIP and luciferase report assays examined gene interaction. The assays were performed under hypoxia condition. RESULTS MiR-19b-3p was highly expressed in myocardial cell line H9C2, primary cardiomyocytes, and tissues from MI mouse model. MiR-19b-3p inhibition suppressed the apoptosis of cardiomyocytes. BC002059 could up-regulate ABHD10 through sequestering miR-19b-3p. BC002059 upregulation was observed to repress cell apoptosis. Rescue experiments demonstrated that miR-19b-3p overexpression abrogated the suppressive impact of BC002059 on the apoptosis of MI cells, and infarct size, area at risk as well as CK-MB and LDH release of MI mouse model tissues, which was further abolished via ABHD10 increment. CONCLUSION MiR-19b-3p regulated by BC002059/ABHD10 axis promotes cell apoptosis in MI, which might provide a novel perspective for MI alleviation research.
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Affiliation(s)
- Bihong Liao
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China
| | - Shaohong Dong
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China.
| | - Zhenglei Xu
- Department of Gastroenterology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China.
| | - Fei Gao
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China
| | - Suihao Zhang
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China
| | - Ruijuan Liang
- Department of Cardiology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, 1017 Dongmen North Road, Luohu District, Shenzhen, 518000, Guangdong, China
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5
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Pahlavani HA. Exercise-induced signaling pathways to counteracting cardiac apoptotic processes. Front Cell Dev Biol 2022; 10:950927. [PMID: 36036015 PMCID: PMC9403089 DOI: 10.3389/fcell.2022.950927] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/15/2022] [Indexed: 01/15/2023] Open
Abstract
Cardiovascular diseases are the most common cause of death in the world. One of the major causes of cardiac death is excessive apoptosis. However, multiple pathways through moderate exercise can reduce myocardial apoptosis. After moderate exercise, the expression of anti-apoptotic proteins such as IGF-1, IGF-1R, p-PI3K, p-Akt, ERK-1/2, SIRT3, PGC-1α, and Bcl-2 increases in the heart. While apoptotic proteins such as PTEN, PHLPP-1, GSK-3, JNK, P38MAPK, and FOXO are reduced in the heart. Exercise-induced mechanical stress activates the β and α5 integrins and subsequently, focal adhesion kinase phosphorylation activates the Akt/mTORC1 and ERK-1/2 pathways, leading to an anti-apoptotic response. One of the reasons for the decrease in exercise-induced apoptosis is the decrease in Fas-ligand protein, Fas-death receptor, TNF-α receptor, Fas-associated death domain (FADD), caspase-8, and caspase-3. In addition, after exercise mitochondrial-dependent apoptotic factors such as Bid, t-Bid, Bad, p-Bad, Bak, cytochrome c, and caspase-9 are reduced. These changes lead to a reduction in oxidative damage, a reduction in infarct size, a reduction in cardiac apoptosis, and an increase in myocardial function. After exercising in the heart, the levels of RhoA, ROCK1, Rac1, and ROCK2 decrease, while the levels of PKCε, PKCδ, and PKCɑ are activated to regulate calcium and prevent mPTP perforation. Exercise has an anti-apoptotic effect on heart failure by increasing the PKA-Akt-eNOS and FSTL1-USP10-Notch1 pathways, reducing the negative effects of CaMKIIδ, and increasing the calcineurin/NFAT pathway. Exercise plays a protective role in the heart by increasing HSP20, HSP27, HSP40, HSP70, HSP72, and HSP90 along with increasing JAK2 and STAT3 phosphorylation. However, research on exercise and factors such as Pim-1, Notch, and FAK in cardiac apoptosis is scarce, so further research is needed. Future research is recommended to discover more anti-apoptotic pathways. It is also recommended to study the synergistic effect of exercise with gene therapy, dietary supplements, and cell therapy for future research.
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Roohaninasab M, Yavari SF, Babazadeh M, Hagh RA, Pazoki M, Amrovani M. Evaluating the Role of lncRNAs in the Incidence of Cardiovascular Diseases in Androgenetic Alopecia Patients. Cardiovasc Toxicol 2022; 22:603-619. [PMID: 35507254 DOI: 10.1007/s12012-022-09742-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/11/2022] [Indexed: 11/28/2022]
Abstract
Hair loss occurs in patients with Androgenetic Alopecia (AGA). The pattern of hair loss is different between men and women. The main cause of hair loss is increased cell apoptosis and decreased regeneration, proliferation and differentiation processes in hair follicles. Long Non-Coding RNAs (lncRNAs) are one of the most important molecules that regulate the processes of apoptosis, regeneration, proliferation and differentiation in hair follicles. Since studies have shown that lncRNAs can be effective in the development of cardiotoxicity and induction of cardiovascular disease (CVD); so effective lncRNAs in the regulation of regeneration, proliferation, differentiation and apoptosis of hair follicles can be involved in the development of CVD in AGA patients with. Therefore, this study investigated the lncRNAs involved in increasing apoptosis and reducing the processes of regeneration, proliferation and differentiation of hair follicles. The aim of the current study was to evaluate the role of lncRNAs as a risk factor in the incidence of CVD in AGA patients; it will help to design treatment strategies by targeting signaling pathways without any cardiotoxicity complications.
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Affiliation(s)
- Masoumeh Roohaninasab
- Department of Dermatology, Rasool Akram Medical Complex, Iran University of Medical Sciences, Sattarkhan St, Tehran, 1445613131, Iran
| | - Shadnaz Fakhteh Yavari
- Department of Tissue Engineering and Applied Cell Science, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran.,Parvaz Research Ideas Supporter Institute, Tehran, Iran
| | - Motahareh Babazadeh
- Department of Dermatology, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Mahboubeh Pazoki
- Department of Cardiology, Rasoul Akram General Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Mehran Amrovani
- High Institute for Education and Research in Transfusion Medicine, Tehran, Iran.
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Yang M, Liao M, Liu R, Zhang Q, Zhang S, He Y, Jin J, Zhang P, Zhou L. Human umbilical cord mesenchymal stem cell-derived extracellular vesicles loaded with miR-223 ameliorate myocardial infarction through P53/S100A9 axis. Genomics 2022; 114:110319. [PMID: 35227836 DOI: 10.1016/j.ygeno.2022.110319] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/22/2022] [Accepted: 02/19/2022] [Indexed: 01/14/2023]
Abstract
Mesenchymal stem cell (MSC)-derived extracellular vesicles (EVs) have been proposed as a promising strategy for myocardial infarction (MI). This study aims to explore the mechanism of human umbilical cord MSCs (hucMSCs)-derived EVs loaded with miR-223 on MI. Inflammation, cell biological functions, and fibrosis in vitro were measured. Furthermore, MI rat models were established to verify the role of EVs-miR-223 in vivo. The binding relationship between miR-223 and P53 was confirmed. ChIP assay was utilized to observe the combination of P53 and S100A9. The suppressed fibrosis of cardiomyocytes occurred with cells overexpressing miR-223. MiR-223 contributed to the angiogenesis of HUVECs. P53 was a target gene of miR-223. In vivo, miR-223 relieved myocardial fibrosis and inflammation infiltration, and promoted the angiogenesis in MI rats. HucMSC-derived EVs loaded with miR-223 mitigates MI and promotes myocardial repair through the P53/S100A9 axis, manifesting the underlying therapy values of hucMSC-derived EVs loaded with miR-223 in MI.
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Affiliation(s)
- Mei Yang
- Departmemt of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Mingmei Liao
- Departmemt of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Ruijie Liu
- Departmemt of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Qi Zhang
- Departmemt of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Sai Zhang
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Yi He
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Jin Jin
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Pengfei Zhang
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China.
| | - Lin Zhou
- Departmemt of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, PR China.
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8
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Jorgensen BG, Ro S. MicroRNAs and 'Sponging' Competitive Endogenous RNAs Dysregulated in Colorectal Cancer: Potential as Noninvasive Biomarkers and Therapeutic Targets. Int J Mol Sci 2022; 23:ijms23042166. [PMID: 35216281 PMCID: PMC8876324 DOI: 10.3390/ijms23042166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 01/28/2022] [Accepted: 02/02/2022] [Indexed: 12/13/2022] Open
Abstract
The gastrointestinal (GI) tract in mammals is comprised of dozens of cell types with varied functions, structures, and histological locations that respond in a myriad of ways to epigenetic and genetic factors, environmental cues, diet, and microbiota. The homeostatic functioning of these cells contained within this complex organ system has been shown to be highly regulated by the effect of microRNAs (miRNA). Multiple efforts have uncovered that these miRNAs are often tightly influential in either the suppression or overexpression of inflammatory, apoptotic, and differentiation-related genes and proteins in a variety of cell types in colorectal cancer (CRC). The early detection of CRC and other GI cancers can be difficult, attributable to the invasive nature of prophylactic colonoscopies. Additionally, the levels of miRNAs associated with CRC in biofluids can be contradictory and, therefore, must be considered in the context of other inhibiting competitive endogenous RNAs (ceRNA) such as lncRNAs and circRNAs. There is now a high demand for disease treatments and noninvasive screenings such as testing for bloodborne or fecal miRNAs and their inhibitors/targets. The breadth of this review encompasses current literature on well-established CRC-related miRNAs and the possibilities for their use as biomarkers in the diagnoses of this potentially fatal GI cancer.
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SOCS6 Promotes Mitochondrial Fission and Cardiomyocyte Apoptosis and Is Negatively Regulated by Quaking-Mediated miR-19b. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1121323. [PMID: 35126805 PMCID: PMC8813278 DOI: 10.1155/2022/1121323] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 10/15/2021] [Accepted: 11/02/2021] [Indexed: 11/18/2022]
Abstract
Background. Mitochondrial dysfunction and abnormal mitochondrial fission have been implicated in the complications associated with I/R injury as cardiomyocytes are abundant in mitochondria. SOCS6 is known to participate in mitochondrial fragmentation, but its exact involvement and the pathways associated are uncertain. Methods and Results. The expression of SOCS6 was analyzed by western blot in cardiomyocytes under a hypoxia and reoxygenation (H/R) model. A dual-luciferase reporter assay was used to confirm the direct interaction between miR-19b and the 3
-UTR of Socs6. In the present study, we found that Socs6 inhibition by RNA interference attenuated H/R-induced mitochondrial fission and apoptosis in cardiomyocytes. A luciferase assay indicated that Socs6 is a direct target of miR-19b. The overexpression of miR-19b decreased mitochondrial fission and apoptosis in vitro. Moreover, the presence of miR-19b reduced the level of SOCS6 and the injury caused by I/R in vivo. There were less apoptotic cells in the myocardium of mice injected with miR-19b. In addition, we found that the RNA-binding protein, Quaking (QK), participates in the regulation of miR-19b expression. Conclusions. Our results indicate that the inhibition of mitochondrial fission through downregulating Socs6 via the QK/miR-19b/Socs6 pathway attenuated the damage sustained by I/R. The QK/miR-19b/Socs6 axis plays a vital role in regulation of mitochondrial fission and cardiomyocyte apoptosis and could form the basis of future research in the development of therapies for the management of cardiac diseases.
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Sayed-Pathan NI, Kumar P, Paknikar KM, Gajbhiye V. MicroRNAs: A Neoteric Approach to Understand Pathogenesis, Diagnose, and Treat Myocardial Infarction. J Cardiovasc Pharmacol 2021; 78:773-781. [PMID: 34882110 DOI: 10.1097/fjc.0000000000001141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 09/12/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT Myocardial infarction is a substantial contributor to ischemic heart diseases, affecting a large number of people leading to fatal conditions worldwide. MicroRNAs (miRNAs) are explicitly emerging as excellent modulators of pathways involved in maintaining cardiomyocyte survival, repair, and regeneration. Altered expression of genes in cardiomyocytes postinfarction can lead to the disordered state of the myocardium, such as cardiac hypertrophy, ischemia-reperfusion injury, left ventricular remodeling, and cardiac fibrosis. Therapeutic targeting of miRNAs in cardiomyocytes can potentially reverse the adverse effects in the heart postinfarction. This review aims to understand the role of several miRNAs involved in the regeneration and repair of cardiomyocytes postmyocardial infarction and presents comprehensive information on the subject.
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Affiliation(s)
- Nida Irfan Sayed-Pathan
- Nanobioscience Group, Agharkar Research Institute, Pune, India; and
- Savitribai Phule Pune University, Ganeshkhind, Pune, India
| | - Pramod Kumar
- Nanobioscience Group, Agharkar Research Institute, Pune, India; and
- Savitribai Phule Pune University, Ganeshkhind, Pune, India
| | - Kishore M Paknikar
- Nanobioscience Group, Agharkar Research Institute, Pune, India; and
- Savitribai Phule Pune University, Ganeshkhind, Pune, India
| | - Virendra Gajbhiye
- Nanobioscience Group, Agharkar Research Institute, Pune, India; and
- Savitribai Phule Pune University, Ganeshkhind, Pune, India
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11
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MicroRNAs associated with signaling pathways and exercise adaptation in sarcopenia. Life Sci 2021; 285:119926. [PMID: 34480932 DOI: 10.1016/j.lfs.2021.119926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/22/2021] [Accepted: 08/24/2021] [Indexed: 01/06/2023]
Abstract
Considering the expansion of human life-span over the past few decades; sarcopenia, a physiological consequence of aging process characterized with a diminution in mass and strength of skeletal muscle, has become more frequent. Thus, there is a growing need for expanding our knowledge on the molecular mechanisms of muscle atrophy in sarcopenia which are complex and involve many signaling pathways associated with protein degradation and synthesis. MicroRNAs (miRNAs) as evolutionary conserved small RNAs, could complementarily bind to their target mRNAs and post-transcriptionally inhibit their translation. Aberrant expression of miRNAs contributes to the development of sarcopenia by regulating the expression of critical genes involved in age-related skeletal muscle mass loss. Here we have a review on the signaling pathways along with the miRNAs controlling their components expression and subsequently we provide a brief overview on the effects of exercise on expression pattern of miRNAs in sarcopenia.
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12
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Rivas DA, Peng F, Benard T, Ramos da Silva AS, Fielding RA, Margolis LM. miR-19b-3p is associated with a diametric response to resistance exercise in older adults and regulates skeletal muscle anabolism via PTEN inhibition. Am J Physiol Cell Physiol 2021; 321:C977-C991. [PMID: 34705586 PMCID: PMC8714992 DOI: 10.1152/ajpcell.00190.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Understanding paradoxical responses to anabolic stimulation and identifying the mechanisms for this inconsistency in mobility-limited older adults may provide new targets for the treatment of sarcopenia. Our laboratory has discovered that dysregulation in microRNA (miRNA) that target anabolic pathways is a potential mechanism resulting in age-associated decreases in skeletal muscle mass and function (sarcopenia). The objective of the current study was to assess circulating miRNA expression profiles in diametric response of leg lean mass in mobility-limited older individuals after a 6-mo progressive resistance exercise training intervention (PRET) and determine the influence of differentially expressing miRNA on regulation of skeletal muscle mass. Participants were dichotomized by gain (Gainers; mean +561.4 g, n = 33) or loss (Losers; mean −589.8 g, n = 40) of leg lean mass after PRET. Gainers significantly increased fat-free mass 2.4% vs. −0.4% for Losers. Six miRNA (miR-1-3p, miR-19b-3p, miR-92a, miR-126, miR-133a-3p, and miR-133b) were significantly identified to be differentially expressed between Gainers and Losers, with miR-19b-3p being the miRNA most highly associated with increases in fat-free mass. Using an aging mouse model, we then assessed if miR-19b-3p expression was different in young mice with larger muscle mass compared with older mice. Circulating and skeletal muscle miR-19b-3p expression was higher in young compared with old mice and was positively associated with muscle mass and grip strength. We then used a novel integrative approach to determine if differences in circulating miR-19b-3p potentially translate to augmented anabolic response in human skeletal muscle cells in vitro. Results from this analysis identified that overexpression of miR-19b-3p targeted and downregulated PTEN by 64% to facilitate significant ∼50% increase in muscle protein synthetic rate as measured with SUnSET. The combine results of these three models identify miR-19b-3p as a potent regulator of muscle anabolism that may contribute to an inter-individual response to PRET in mobility-limited older adults.
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Affiliation(s)
- Donato A Rivas
- Nutrition, Exercise Physiology and Sarcopenia Laboratory; Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Fei Peng
- Nutrition, Exercise Physiology and Sarcopenia Laboratory; Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Townsend Benard
- Nutrition, Exercise Physiology and Sarcopenia Laboratory; Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Adelino Sanchez Ramos da Silva
- Nutrition, Exercise Physiology and Sarcopenia Laboratory; Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States.,School of Physical Education and Sport of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Roger A Fielding
- Nutrition, Exercise Physiology and Sarcopenia Laboratory; Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Lee M Margolis
- Nutrition, Exercise Physiology and Sarcopenia Laboratory; Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States.,Military Nutrition Division, US Army Research Institute of Environmental Medicine, Natick, MA, United States
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13
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Zia A, Farkhondeh T, Sahebdel F, Pourbagher-Shahri AM, Samarghandian S. Key miRNAs in Modulating Aging and Longevity: A Focus on Signaling Pathways and Cellular Targets. Curr Mol Pharmacol 2021; 15:736-762. [PMID: 34533452 DOI: 10.2174/1874467214666210917141541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 05/02/2021] [Accepted: 05/24/2021] [Indexed: 11/22/2022]
Abstract
Aging is a multifactorial procedure accompanied by gradual deterioration of most biological procedures of cells. MicroRNAs (miRNAs) are a class of short non-coding RNAs that post-transcriptionally regulate the expression of mRNAs through sequence-specific binding, and contributing to many crucial aspects of cell biology. Several miRNAs are expressed differently in various organisms through aging. The function of miRNAs in modulating aging procedures has been disclosed recently with the detection of miRNAs that modulate longevity in the invertebrate model organisms, through the IIS pathway. In these model organisms, several miRNAs have been detected to both negatively and positively regulate lifespan via commonly aging pathways. miRNAs modulate age-related procedures and disorders in different mammalian tissues by measuring their tissue-specific expression in older and younger counterparts, including heart, skin, bone, brain, and muscle tissues. Moreover, several miRNAs have been contributed to modulating senescence in different human cells, and the roles of these miRNAs in modulating cellular senescence have allowed illustrating some mechanisms of aging. The review discusses the available data on miRNAs through the aging process and we highlight the roles of miRNAs as aging biomarkers and regulators of longevity in cellular senescence, tissue aging, and organism lifespan.
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Affiliation(s)
- Aliabbas Zia
- Department of Biochemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Tahereh Farkhondeh
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Faezeh Sahebdel
- Department of Rehabilitation Medicine, University of Minnesota Medical School, Minneapolis, MN, United States
| | | | - Saeed Samarghandian
- Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran
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14
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Qi H, Zhang J, Shang Y, Yuan S, Meng C. Argon inhibits reactive oxygen species oxidative stress via the miR-21-mediated PDCD4/PTEN pathway to prevent myocardial ischemia/reperfusion injury. Bioengineered 2021; 12:5529-5539. [PMID: 34506261 PMCID: PMC8806883 DOI: 10.1080/21655979.2021.1965696] [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] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The objective of this study was to explore the effect of argon preconditioning on myocardial ischemia reperfusion (MI/R) injury and its mechanism. Cardiomyocytes H2C9 were pre-treated with 50% argon, and a cell model of oxygen-glucose deprivation (OGD) was established. CCK-8 and cytotoxicity detection kits were used to detect cell viability and lactate dehydrogenase (LDH) release. The miR-21 expression was detected using quantitative real-time polymerase chain reaction. Western blot analysis was performed to detect the expression of programmed cell death protein 4 (PDCD4) and homologous phosphatase and tensin homolog (PTEN) proteins. The levels of inflammatory factors (IL-1β, IL-6, and IL-8) and oxidative stress factors (reactive oxygen species ROS], malondialdehyde [MDA], and superoxide dismutase [SOD]) were measured using an enzyme-linked immunosorbent assay. The effect of argon on cell apoptosis was detected using flow cytometry. Argon increased the proliferation of cardiomyocytes induced by OGD, decreased the release of LDH in cell culture medium, increased miR-21 expression in cells, decreased the expression of miR-21 target proteins PDCD4 and PTEN, decreased the levels of inflammatory factors (interleukin-1β [IL-1β], interleukin-6 [IL-6], and interleukin-8 [IL-8]) and oxidative stress factors (ROS and MDA), increased the SOD content, and decreased the cell apoptosis rate. Our results suggest that argon preconditioning inhibited the PDCD4/PTEN pathway via miR-21, thereby inhibiting ROS oxidative stress and preventing MI/R injury.
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Affiliation(s)
- Hong Qi
- Department of ICU, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Jiancheng Zhang
- Department of ICU, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - You Shang
- Department of ICU, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Shiying Yuan
- Department of ICU, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Chunqing Meng
- Department of Orthopedic Surgery, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
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15
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Liang T, Gao F, Chen J. Role of PTEN-less in cardiac injury, hypertrophy and regeneration. CELL REGENERATION (LONDON, ENGLAND) 2021; 10:25. [PMID: 34337686 PMCID: PMC8326232 DOI: 10.1186/s13619-021-00087-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/18/2021] [Indexed: 12/20/2022]
Abstract
Cardiovascular diseases are the leading cause of death worldwide. Cardiomyocytes are capable of coordinated contractions, which are mainly responsible for pumping blood. When cardiac stress occurs, cardiomyocytes undergo transition from physiological homeostasis to hypertrophic growth, proliferation, or apoptosis. During these processes, many cellular factors and signaling pathways participate. PTEN is a ubiquitous dual-specificity phosphatase and functions by dephosphorylating target proteins or lipids, such as PIP3, a second messenger in the PI3K/AKT signaling pathway. Downregulation of PTEN expression or inhibiting its biologic activity improves heart function, promotes cardiomyocytes proliferation, reduces cardiac fibrosis as well as dilation, and inhibits apoptosis following ischemic stress such as myocardial infarction. Inactivation of PTEN exhibits a potentially beneficial therapeutic effects against cardiac diseases. In this review, we summarize various strategies for PTEN inactivation and highlight the roles of PTEN-less in regulating cardiomyocytes during cardiac development and stress responses.
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Affiliation(s)
- Tian Liang
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Feng Gao
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Jinghai Chen
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China. .,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
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16
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Zhang Q, Wu X, Yang J. miR-194-5p protects against myocardial ischemia/reperfusion injury via MAPK1/PTEN/AKT pathway. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:654. [PMID: 33987352 PMCID: PMC8106072 DOI: 10.21037/atm-21-807] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background MicroRNA (miRNA), which participates in various physiological and pathological processes, is a highly conserved small RNA sequence. This study aimed to investigate the role of miR-194-5p in hypoxia/reoxygenation (H/R)-induced cardiomyocyte apoptosis and myocardial ischemia/reperfusion (I/R) injury. Methods We set up an H/R H9c2 cell model in vitro and an I/R mouse model in vivo. Then, cell vitality, apoptosis, and histopathological evaluation were conducted. Reactive oxygen species (ROS) generation and the activity of superoxide dismutase (SOD) and malondialdehyde (MDA) were examined by 2’,7’-Dichlorodihydrofluorescein diacetate (H2DCFDA), and enzyme-linked immunosorbent assay (ELISA), respectively. The level of creatine kinase isoenzyme (CK-MB), cardiac troponin I (cTnI), myoglobin (Mb) is examined by ELISA. The expression of Caspase-3, cleaved-Caspase-3, Bax, Bcl-2, phosphatase and tensin homolog deleted on chromosome ten (PTEN), and protein kinase B (AKT) was analyzed by western blot. Results Data showed the expression of miR-194-5p was decreased in H/R-induced H9c2 cells and I/R-induced mouse. Conversely, overexpression of miR-194-5p could improve cardiomyocyte damage in ischemic models in vivo and in vitro. Furthermore, mitogen-activated protein kinase 1 (MAPK1) was found as a direct target of miR-194-5p, which negatively regulated the expression of MAPK1. The up-regulation of MAPK1 inhibited the myocardial protection previously observed by miR-194-5p. Conclusions Our study shows overexpression of miR-194-5p protects against H/R injury in vitro and cardiac I/R injury in vivo, which involves the inhibition of cardiac apoptosis and oxidative stress by targeting MAPK1 expression via PTEN/AKT pathway. These findings supply novel insights into potential therapeutic targets for cardiovascular diseases.
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Affiliation(s)
- Qiufeng Zhang
- Emergency Department, First People's Hospital of Shangqiu City, Shangqiu, China
| | - Xiaotian Wu
- Emergency Department, First People's Hospital of Shangqiu City, Shangqiu, China
| | - Jie Yang
- Department of Cardiovascular Medicine, Xiaoshan Hospital, Xiaoshan, China
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17
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Singh S, de Ronde MWJ, Creemers EE, Van der Made I, Meijering R, Chan MY, Hwee Tan S, Tang Chin C, Mark Richards A, Troughton RW, Yean Yip Fong A, Yan BP, Pinto-Sietsma SJ. Low miR-19b-1-5p Expression Is Related to Aspirin Resistance and Major Adverse Cardio- Cerebrovascular Events in Patients With Acute Coronary Syndrome. J Am Heart Assoc 2021; 10:e017120. [PMID: 33441016 PMCID: PMC7955314 DOI: 10.1161/jaha.120.017120] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Because of a nonresponse to aspirin (aspirin resistance), patients with acute coronary syndrome (ACS) are at increased risk of developing recurrent event. The in vitro platelet function tests have potential limitations, making them unsuitable for the detection of aspirin resistance. We investigated whether miR-19b-1-5p could be utilized as a biomarker for aspirin resistance and future major adverse cardio-cerebrovascular (MACCE) events in patients with ACS. Methods and Results In this cohort study, patients with ACS were enrolled from multiple tertiary hospitals in Christchurch, Hong Kong, Sarawak, and Singapore between 2011 and 2015. MiR-19b-1-5p expression was measured from buffy coat of patients with ACS (n=945) by reverse transcription quantitative polymerase chain reaction. Platelet function was determined by Multiplate aggregometry testing. MACCE was collected over a mean follow-up time of 1.01±0.43 years. Low miR-19b-1-5p expression was found to be related to aspirin resistance as could be observed from sustained platelet aggregation in the presence of aspirin (-Log-miR-19b-1-5p, [unstandardized beta, 44.50; 95% CI, 2.20-86.80; P<0.05]), even after adjusting for age, sex, ethnicity, and prior history of stroke. Lower miR-19b-1-5p expression was independently associated with a higher risk of MACCE (-Log-miR-19b-1-5p, [hazard ratio, 1.85; 95% CI, 1.23-2.80; P<0.05]). Furthermore, a significant interaction was noted between the inverse miR-19b-1-5p expression and family history of premature coronary artery disease (P=0.01) on the risk of MACCE. Conclusions Lower miR-19b-1-5p expression was found to be associated with sustained platelet aggregation on aspirin, and a higher risk of MACCE in patients with ACS. Therefore, miR-19b-1-5p could be a suitable marker for aspirin resistance and might predict recurrence of MACCE in patients with ACS.
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Affiliation(s)
- Sandeep Singh
- Departments of Clinical Epidemiology, Biostatistics and Bio-informaticsAmsterdam UMC, location AMC Amsterdam The Netherlands.,Department of Vascular MedicineAmsterdam UMC, location AMC Amsterdam The Netherlands
| | - Maurice W J de Ronde
- Departments of Clinical Epidemiology, Biostatistics and Bio-informaticsAmsterdam UMC, location AMC Amsterdam The Netherlands.,Department of Vascular MedicineAmsterdam UMC, location AMC Amsterdam The Netherlands
| | - Esther E Creemers
- Department of Experimental CardiologyAmsterdam UMC, location AMC Amsterdam The Netherlands
| | - Ingeborg Van der Made
- Department of Experimental CardiologyAmsterdam UMC, location AMC Amsterdam The Netherlands
| | | | - Mark Y Chan
- The National University Heart Center Singapore Singapore.,Cardiovascular Research InstituteYong Loo Lin School of MedicineNational University of Singapore Singapore Singapore
| | - Sock Hwee Tan
- The National University Heart Center Singapore Singapore.,Cardiovascular Research InstituteYong Loo Lin School of MedicineNational University of Singapore Singapore Singapore
| | - Chee Tang Chin
- Program in Cardiovascular and Metabolic Disorders Duke-National University of SingaporeGraduate Medical School Singapore Singapore.,National Heart Centre Singapore Singapore
| | - A Mark Richards
- Cardiovascular Research InstituteYong Loo Lin School of MedicineNational University of Singapore Singapore Singapore.,Christchurch Heart InstituteUniversity of Otago Christchurch New Zealand
| | | | - Alan Yean Yip Fong
- Clinical Research Centre Sarawak General Hospital Kuching Malaysia.,Department of Cardiology Sarawak Heart Centre Kota Samarahan Malaysia
| | - Bryan P Yan
- Department of Medicine & Therapeutics The Chinese University of Hong Kong Hong Kong China
| | - Sara-Joan Pinto-Sietsma
- Departments of Clinical Epidemiology, Biostatistics and Bio-informaticsAmsterdam UMC, location AMC Amsterdam The Netherlands.,Department of Vascular MedicineAmsterdam UMC, location AMC Amsterdam The Netherlands
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18
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Zhen L, Zhao Q, Lü J, Deng S, Xu Z, Zhang L, Zhang Y, Fan H, Chen X, Liu Z, Gu Y, Yu Z. miR-301a-PTEN-AKT Signaling Induces Cardiomyocyte Proliferation and Promotes Cardiac Repair Post-MI. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:251-262. [PMID: 33230431 PMCID: PMC7515978 DOI: 10.1016/j.omtn.2020.08.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 08/25/2020] [Indexed: 12/31/2022]
Abstract
Adult hearts are hard to recover after cardiac injury due to the limited proliferative ability of cardiomyocytes. Emerging evidence indicates the induction of cell cycle reentry of cardiomyocytes by special treatment or stimulation, which offers adult heart regenerative potential. Herein, a microRNA (miRNA) screening in cardiomyocytes identified miR-301a enriched specially in the neonatal cardiomyocytes from rats and mice. Overexpression of miR-301a in primary neonatal cardiomyocytes and H9C2 cells induced G1/S transition of the cell cycle, promoted cellular proliferation, and protected cardiomyocytes against hypoxia-induced apoptosis. Adeno-associated virus (AAV)9-mediated cardiac delivery of miR-301a to the mice model with myocardial infarction (MI) dramatically promoted cardiac repair post-MI in vivo. Phosphatase and tensin homolog (PTEN)/phosphatidylinositol 3-kinase (PI3K)/AKT signaling pathway was confirmed to mediate miR-301a-induced cell proliferation in cardiomyocytes. Loss of function of PTEN mimicked the miR-301a-induced phenotype, while gain of function of PTEN attenuated the miR-301a-induced cell proliferation in cardiomyocytes. Application of RG7440, a small molecule inhibitor of AKT, blocked the function of miR-301a in cardiomyocytes. The current study revealed a miRNA signaling in inducing the cell cycle reentry of cardiomyocytes in the injured heart, and it demonstrated the miR-301a/PTEN/AKT signaling as a potential therapeutic target to reconstitute lost cardiomyocytes in mammals.
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Affiliation(s)
- Lixiao Zhen
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Qian Zhao
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Jinhui Lü
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Shengqiong Deng
- Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, China
| | - Zhen Xu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Lin Zhang
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Yuzhen Zhang
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Huimin Fan
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Xiongwen Chen
- Cardiovascular Research Center, Temple University School of Medicine, Philadelphia, PA 19122, USA
| | - Zhongmin Liu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Yuying Gu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Zuoren Yu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
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19
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Mycoplasma hyopneumoniae J elicits an antioxidant response and decreases the expression of ciliary genes in infected swine epithelial cells. Sci Rep 2020; 10:13707. [PMID: 32792522 PMCID: PMC7426424 DOI: 10.1038/s41598-020-70040-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022] Open
Abstract
Mycoplasma hyopneumoniae is the most costly pathogen for swine production. Although several studies have focused on the host-bacterium association, little is known about the changes in gene expression of swine cells upon infection. To improve our understanding of this interaction, we infected swine epithelial NPTr cells with M. hyopneumoniae strain J to identify differentially expressed mRNAs and miRNAs. The levels of 1,268 genes and 170 miRNAs were significantly modified post-infection. Up-regulated mRNAs were enriched in genes related to redox homeostasis and antioxidant defense, known to be regulated by the transcription factor NRF2 in related species. Down-regulated mRNAs were enriched in genes associated with cytoskeleton and ciliary functions. Bioinformatic analyses suggested a correlation between changes in miRNA and mRNA levels, since we detected down-regulation of miRNAs predicted to target antioxidant genes and up-regulation of miRNAs targeting ciliary and cytoskeleton genes. Interestingly, most down-regulated miRNAs were detected in exosome-like vesicles suggesting that M. hyopneumoniae infection induced a modification of the composition of NPTr-released vesicles. Taken together, our data indicate that M. hyopneumoniae elicits an antioxidant response induced by NRF2 in infected cells. In addition, we propose that ciliostasis caused by this pathogen is partially explained by the down-regulation of ciliary genes.
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20
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Li X, Zhong J, Zeng Z, Wang H, Li J, Liu X, Yang X. MiR-181c protects cardiomyocyte injury by preventing cell apoptosis through PI3K/Akt signaling pathway. Cardiovasc Diagn Ther 2020; 10:849-858. [PMID: 32968640 DOI: 10.21037/cdt-20-490] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background Cardiomyocyte apoptosis plays an important role in the development of heart failure, which leads to high mortality in patients with cardiovascular diseases. In this study, we are focused to identify the role of miRNA-181c in the regulating of myocardial tissue apoptosis in the doxorubicin (DOX) or hypoxia/reoxygenation (H/R) induced H9C2 cardiomyocyte injury. Methods DOX-induced heart failure animal model was established using mice. Total RNA was extracted from tissue and cell using Trizol. RT-PCR was conducted for real-time RNA quantification. H9c2 cells were collected and labeled using an Annexin V-PI apoptosis kit. Flow cytometry was conducted to identify the cell apoptosis. Rat cardiomyocyte H9c2 cell was treated by 16 hours' hypoxia and 2 hours' reoxygenation to induce cell apoptosis. TUNEL assay was employed for myocardial tissue apoptosis analysis. Results It was revealed that miR-181c was suppressed on the heart tissue of DOX-induced heart failure animal model. We observed miR-181c overexpression reduced apoptosis through TUNEL assay, which suggested the inhibitory effect of miR-181c on myocardial tissue apoptosis. Transfection of miR-181c mimic could decrease cell apoptosis in H/R treated H9C2 cells in vitro. Under the stimulation of H/R or DOX, miR-181c could downregulate protein expression of Fas, IL-6 and TNF-α, and upregulated Bcl2 and the phosphorylation of Akt. Conclusions Our study revealed that miR-181c protected heart failure by impeding cardiomyocyte apoptosis through PI3K/Akt pathway, implying the therapeutic role of miR-181c during the exacerbation of the cardiovascular disease.
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Affiliation(s)
- Xiaoli Li
- Department of Cardiology, Chaoyang Hospital affiliated to Capital Medical University, Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Jiuchang Zhong
- Department of Cardiology, Chaoyang Hospital affiliated to Capital Medical University, Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Zhen Zeng
- Geriatric Department, Chui Yang Liu Hospital Affiliated to Tsinghua University, Beijing, China
| | - Hongjiang Wang
- Department of Cardiology, Chaoyang Hospital affiliated to Capital Medical University, Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Jing Li
- Department of Cardiology, Chaoyang Hospital affiliated to Capital Medical University, Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Xiaoyan Liu
- Department of Cardiology, Chaoyang Hospital affiliated to Capital Medical University, Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Xinchun Yang
- Department of Cardiology, Chaoyang Hospital affiliated to Capital Medical University, Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
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21
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Sellars E, Gabra M, Salmena L. The Complex Landscape of PTEN mRNA Regulation. Cold Spring Harb Perspect Med 2020; 10:cshperspect.a036236. [PMID: 31871240 DOI: 10.1101/cshperspect.a036236] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) is a key tumor suppressor in the development and progression of different tumor types. Emerging data indicate that small reductions in PTEN protein levels can promote cancer. PTEN protein levels are tightly controlled by a plethora of mechanisms beginning with epigenetic and transcriptional regulation and ending with control of protein synthesis and stability. PTEN messenger RNA (mRNA) is also subject to exquisite regulation by microRNAs, coding and long noncoding RNAs, and RNA-binding proteins. Additionally, PTEN mRNA is markedly influenced by alternative splicing and variable polyadenylation. Herein we provide a synoptic description of the current understanding of the complex regulatory landscape of PTEN mRNA regulation including several specific processes that modulate its stability and expression, in the context of PTEN loss-associated cancers.
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Affiliation(s)
- Erin Sellars
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Martino Gabra
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Leonardo Salmena
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 2C1, Canada
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22
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Alhoshani A, Alanazi FE, Alotaibi MR, Attwa MW, Kadi AA, Aldhfyan A, Akhtar S, Hourani S, Agouni A, Zeidan A, Korashy HM. EGFR Inhibitor Gefitinib Induces Cardiotoxicity through the Modulation of Cardiac PTEN/Akt/FoxO3a Pathway and Reactive Metabolites Formation: In Vivo and in Vitro Rat Studies. Chem Res Toxicol 2020; 33:1719-1728. [PMID: 32370496 DOI: 10.1021/acs.chemrestox.0c00005] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gefitinib (GEF) is a selective inhibitor of the epidermal growth factor receptor (EGFR) used to treat non-small cell lung cancer. Yet, few cases of cardiotoxicity have been reported. However, the role of the PTEN/Akt/FoxO3a pathway, which mediates GEF anticancer activity, in GEF cardiotoxicity remains unclear. For this purpose, in vitro H9c2 cells and in vivo rat cardiomyocytes were utilized as study models. Treatment of H9c2 cells and Sprague-Dawley rats with GEF significantly induced the expression of hypertrophic and apoptotic markers at mRNA and protein levels with an increased plasma level of troponin. This was accompanied by induction of autophagy and mitochondrial dysfunction in H9c2 cells. Inhibition of cardiac EGFR activity and Akt cellular content of in vitro and in vivo rat cardiomyocytes by GEF increased PTEN and FoxO3a gene expression and cellular content. Importantly, treatment of H9c2 cells with PI3K/Akt inhibitor increased PTEN and FoxO3a mRNA expression associated with potentiation of GEF cardiotoxicity. In addition, by using LC-MS/MS, we showed that GEF is metabolized in the rat heart microsomes into one cyanide- and two methoxylamine-adduct reactive metabolites, where their formation was entirely blocked by CYP1A1 inhibitor, α-naphthoflavone. The current study concludes that GEF induces cardiotoxicity through modulating the expression and function of the cardiac PTEN/AKT/FoxO3a pathway and the formation of CYP1A1-mediated reactive metabolites.
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Affiliation(s)
- Ali Alhoshani
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Fawaz E Alanazi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.,Security Forces Hospital Program, P.O. Box 3643, Riyadh 11481, Saudi Arabia
| | - Moureq R Alotaibi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Mohamed W Attwa
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.,Students' University Hospital, Mansoura University, Mansoura 35516, Egypt
| | - Adnan A Kadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdullah Aldhfyan
- Stem Cell & Tissue Re-Engineering, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Sabah Akhtar
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Shireen Hourani
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Abdelali Agouni
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Asad Zeidan
- College of Medicine, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Hesham M Korashy
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
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23
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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: 36] [Impact Index Per Article: 9.0] [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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Kanda P, Benavente-Babace A, Parent S, Connor M, Soucy N, Steeves A, Lu A, Cober ND, Courtman D, Variola F, Alarcon EI, Liang W, Stewart DJ, Godin M, Davis DR. Deterministic paracrine repair of injured myocardium using microfluidic-based cocooning of heart explant-derived cells. Biomaterials 2020; 247:120010. [PMID: 32259654 DOI: 10.1016/j.biomaterials.2020.120010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 03/17/2020] [Accepted: 03/26/2020] [Indexed: 02/08/2023]
Abstract
While encapsulation of cells within protective nanoporous gel cocoons increases cell retention and pro-survival integrin signaling, the influence of cocoon size and intra-capsular cell-cell interactions on therapeutic repair are unknown. Here, we employ a microfluidic platform to dissect the impact of cocoon size and intracapsular cell number on the regenerative potential of transplanted heart explant-derived cells. Deterministic increases in cocoon size boosted the proportion of multicellular aggregates within cocoons, reduced vascular clearance of transplanted cells and enhanced stimulation of endogenous repair. The latter being attributable to cell-cell stimulation of cytokine and extracellular vesicle production while also broadening of the miRNA cargo within extracellular vesicles. Thus, by tuning cocoon size and cell occupancy, the paracrine signature and retention of transplanted cells can be enhanced to promote paracrine stimulation of endogenous tissue repair.
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Affiliation(s)
- Pushpinder Kanda
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | | | - Sandrine Parent
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Michie Connor
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Nicholas Soucy
- Ottawa-Carleton Institute for Biomedical Engineering, Ottawa, K1N6N5, Canada
| | - Alexander Steeves
- Department of Mechanical Engineering, University of Ottawa, K1N6N5, Canada
| | - Aizhu Lu
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Nicholas David Cober
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada
| | - David Courtman
- Ottawa Hospital Research Institute, Division of Regenerative Medicine, Department of Medicine, University of Ottawa, Ottawa, K1H8L6, Canada
| | - Fabio Variola
- Department of Mechanical Engineering, University of Ottawa, K1N6N5, Canada
| | - Emilio I Alarcon
- University of Ottawa Heart Institute, Division of Cardiac Surgery, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada; Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, K1H8M5, Canada
| | - Wenbin Liang
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada
| | - Duncan J Stewart
- Ottawa Hospital Research Institute, Division of Regenerative Medicine, Department of Medicine, University of Ottawa, Ottawa, K1H8L6, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada
| | - Michel Godin
- Department of Physics, University of Ottawa, K1N6N5, Canada; Ottawa-Carleton Institute for Biomedical Engineering, Ottawa, K1N6N5, Canada; Department of Mechanical Engineering, University of Ottawa, K1N6N5, Canada
| | - Darryl R Davis
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada.
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25
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Feng Y, Wan P, Yin L, Lou X. The Inhibition of MicroRNA-139-5p Promoted Osteoporosis of Bone Marrow-Derived Mesenchymal Stem Cells by Targeting Wnt/Beta-Catenin Signaling Pathway by NOTCH1. J Microbiol Biotechnol 2020; 30:448-458. [PMID: 31752063 PMCID: PMC9728286 DOI: 10.4014/jmb.1908.08036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We investigated the therapeutic effects of microRNA-139-5p in relation to osteoporosis of bone marrow-derived mesenchymal stem cell (BMSCs) and its underlying mechanisms. In this study we used a dexamethasone-induced in vivo model of osteoporosis and BMSCs were used for the in vitro model. Real-time quantitative polymerase chain reaction (RT-PCR) and gene chip were used to analyze the expression of microRNA-139-5p. In an osteoporosis rat model, the expression of microRNA-139-5p was increased, compared with normal group. Downregulation of microRNA-139-5p promotes cell proliferation and osteogenic differentiation in BMSCs. Especially, up-regulation of microRNA-139-5p reduced cell proliferation and osteogenic differentiation in BMSCs. Overexpression of miR-139-5p induced Wnt/β-catenin and down-regulated NOTCH1 signaling in BMSCs. Down-regulation of miR-139-5p suppressed Wnt/β-catenin and induced NOTCH1 signaling in BMSCs. The inhibition of NOTCH1 reduced the effects of anti-miR-139-5p on cell proliferation and osteogenic differentiation in BMSCs. Activation of Wnt/β-catenin also inhibited the effects of anti-miR-139-5p on cell proliferation and osteogenic differentiation in BMSCs. Taken together, our results suggested that the inhibition of microRNA-139-5p promotes osteogenic differentiation of BMSCs via targeting Wnt/β-catenin signaling pathway by NOTCH1.
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Affiliation(s)
- Yimiao Feng
- Department of Orthodontics, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 30009, P.R. China
| | - Pengbo Wan
- Shangqiu Medical College, Shangqiu, Henan Province 476100, P.R. China
| | - Linling Yin
- Department of Stomatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine (originally named “Shanghai First People’s Hospital”) Shanghai 200080, P.R. China,Corresponding author Phone: +86-21-63240090 E-mail:
| | - Xintian Lou
- Department of Dentistry, Punan Hospital of Pudong New District, Shanghai 200125, P.R. China
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26
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Sayed N, Tambe P, Kumar P, Jadhav S, Paknikar KM, Gajbhiye V. miRNA transfection via poly(amidoamine)-based delivery vector prevents hypoxia/reperfusion-induced cardiomyocyte apoptosis. Nanomedicine (Lond) 2019; 15:163-181. [PMID: 31799897 DOI: 10.2217/nnm-2019-0363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: Myocardial infarction is a tissue injury that leads to apoptosis of cardiomyocytes. This can be prevented by using miRNAs, but its delivery to cardiomyocytes is a major hurdle. We aimed to deliver miRNAs using poly(amidoamine)-histidine (PAMAM-His) nanocarriers to prevent apoptosis. Materials & methods: The PAMAM-His nanoparticles were synthesized and assessed for their transfection efficiency of miRNAs to prevent apoptosis in hypoxia/reperfusion-induced H9c2 as well as primary cultured cardiomyocytes. Results & conclusion: miRNAs-nanoparticle complexes exerted a significant antiapoptotic effect on the H9c2 and primary rat ventricular cardiomyocytes. Enhanced expression of antiapoptotic genes and decreased expression of proapoptotic genes were observed. PAMAM-His nanoparticles effectively delivered miRNAs to the cardiomyocytes and prevented the hypoxia/reperfusion-induced apoptosis critical in myocardial infarctions.
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Affiliation(s)
- Nida Sayed
- Nanobioscience, Agharkar Research Institute, Pune, 411 004, India
| | - Prajakta Tambe
- Nanobioscience, Agharkar Research Institute, Pune, 411 004, India
| | - Pramod Kumar
- Nanobioscience, Agharkar Research Institute, Pune, 411 004, India
| | - Sachin Jadhav
- Nanobioscience, Agharkar Research Institute, Pune, 411 004, India
| | - Kishore M Paknikar
- Nanobioscience, Agharkar Research Institute, Pune, 411 004, India.,Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.,Materials Research Centre, Malaviya National Institute of Technology, Jaipur, 302017, India
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27
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Gong L, Xu H, Zhang X, Zhang T, Shi J, Chang H. Oridonin relieves hypoxia-evoked apoptosis and autophagy via modulating microRNA-214 in H9c2 cells. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2019; 47:2585-2592. [PMID: 31220945 DOI: 10.1080/21691401.2019.1628037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/29/2019] [Indexed: 01/05/2023]
Abstract
Oridonin (Orid) has been diffusely applied to remedy dissimilar cancers. Howbeit, the influence of Orid in ischemic heart disease (IHD) remains imprecise. The current study uncovered the functions of Orid in hypoxia-caused apoptosis and autophagy in H9c2 cells. H9c2 cells received hypoxia and Orid manipulation, cell viability, apoptosis, apoptosis-interrelated factors and autophagy-correlative factors were appraised. After the extraordinary vectors transfections, the impacts of miR-214 inhibition on hypoxia-triggered apoptosis and autophagy were investigated. Further, dual luciferase reporter assay was enforced for ascertaining the pertinence between miR-214 and PTEN. PI3K/AKT/mTOR pathway was finally determined using western blot. We found that, Orid significantly alleviated hypoxia-induced apoptosis and autophagy through regulation their associated proteins in H9c2 cells. Up-regulation of miR-214 was found in hypoxia and Orid co-managed cells, meanwhile, repression of miR-214 obviously annulled the modulatory functions of Orid in hypoxia-evoked apoptosis and autophagy. Additionally, PTEN was forecasted to be a firsthand target of miR-214. Besides, we observed that Orid evoked PI3K/AKT/mTOR activation through elevation of miR-214 in hypoxia-managed H9c2 cells. In conclusion, the amusing results corroborated that Orid relieved hypoxia-caused apoptosis and autophagy via adjusting PI3K/AKT/mTOR pathway through enhancement of miR-214 in H9c2 cells.
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Affiliation(s)
- Licheng Gong
- a Department of Cardiology, China-Japan Union Hospital of Jilin University , Changchun , China
| | - Haiming Xu
- a Department of Cardiology, China-Japan Union Hospital of Jilin University , Changchun , China
| | - Xiuli Zhang
- b Department of Thoracic Surgery, China-Japan Union Hospital of Jilin University , Changchun , China
| | - Tao Zhang
- b Department of Thoracic Surgery, China-Japan Union Hospital of Jilin University , Changchun , China
| | - Jingwei Shi
- c Department of Clinical Laboratory, China-Japan Union Hospital of Jilin University , Changchun , China
| | - Hong Chang
- a Department of Cardiology, China-Japan Union Hospital of Jilin University , Changchun , China
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28
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Mount S, Kanda P, Parent S, Khan S, Michie C, Davila L, Chan V, Davies RA, Haddad H, Courtman D, Stewart DJ, Davis DR. Physiologic expansion of human heart-derived cells enhances therapeutic repair of injured myocardium. Stem Cell Res Ther 2019; 10:316. [PMID: 31685023 PMCID: PMC6829847 DOI: 10.1186/s13287-019-1418-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/03/2019] [Accepted: 09/13/2019] [Indexed: 01/08/2023] Open
Abstract
Background Serum-free xenogen-free defined media and continuous controlled physiological cell culture conditions have been developed for stem cell therapeutics, but the effect of these conditions on the relative potency of the cell product is unknown. As such, we conducted a head-to-head comparison of cell culture conditions on human heart explant-derived cells using established in vitro measures of cell potency and in vivo functional repair. Methods Heart explant-derived cells cultured from human atrial or ventricular biopsies within a serum-free xenogen-free media and a continuous physiological culture environment were compared to cells cultured under traditional (high serum) cell culture conditions in a standard clean room facility. Results Transitioning from traditional high serum cell culture conditions to serum-free xenogen-free conditions had no effect on cell culture yields but provided a smaller, more homogenous, cell product with only minor antigenic changes. Culture within continuous physiologic conditions markedly boosted cell proliferation while increasing the expression of stem cell-related antigens and ability of cells to stimulate angiogenesis. Intramyocardial injection of physiologic cultured cells into immunodeficient mice 1 week after coronary ligation translated into improved cardiac function and reduced scar burden which was attributable to increased production of pro-healing cytokines, extracellular vesicles, and microRNAs. Conclusions Continuous physiological cell culture increased cell growth, paracrine output, and treatment outcomes to provide the greatest functional benefit after experimental myocardial infarction.
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Affiliation(s)
- Seth Mount
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, H3214 40 Ruskin Ave, Ottawa, ON, K1Y4W7, Canada
| | - Pushpinder Kanda
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, H3214 40 Ruskin Ave, Ottawa, ON, K1Y4W7, Canada
| | - Sandrine Parent
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, H3214 40 Ruskin Ave, Ottawa, ON, K1Y4W7, Canada
| | - Saad Khan
- Ottawa Hospital Research Institute, Division of Regenerative Medicine, Department of Medicine, University of Ottawa, Ottawa, K1H8L6, Canada
| | - Connor Michie
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, H3214 40 Ruskin Ave, Ottawa, ON, K1Y4W7, Canada
| | - Liliana Davila
- Ottawa Hospital Research Institute, Division of Regenerative Medicine, Department of Medicine, University of Ottawa, Ottawa, K1H8L6, Canada
| | - Vincent Chan
- University of Ottawa Heart Institute, Division of Cardiac Surgery, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Ross A Davies
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, H3214 40 Ruskin Ave, Ottawa, ON, K1Y4W7, Canada
| | | | - David Courtman
- Ottawa Hospital Research Institute, Division of Regenerative Medicine, Department of Medicine, University of Ottawa, Ottawa, K1H8L6, Canada
| | - Duncan J Stewart
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, H3214 40 Ruskin Ave, Ottawa, ON, K1Y4W7, Canada.,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada.,Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, K1H8L6, Canada
| | - Darryl R Davis
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, H3214 40 Ruskin Ave, Ottawa, ON, K1Y4W7, Canada. .,Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, K1H8L6, Canada.
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29
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Efficient Delivery of MicroRNA and AntimiRNA Molecules Using an Argininocalix[4]arene Macrocycle. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:748-763. [PMID: 31733592 PMCID: PMC6859282 DOI: 10.1016/j.omtn.2019.09.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 08/23/2019] [Accepted: 09/17/2019] [Indexed: 12/16/2022]
Abstract
MicroRNAs (miRNAs) are short non-coding RNA molecules acting as gene regulators by repressing translation or by inducing degradation of the target RNA transcripts. Altered expression of miRNAs may be involved in the pathogenesis of many severe human diseases, opening new avenues in the field of therapeutic strategies, i.e., miRNA targeting or miRNA mimicking. In this context, the efficient and non-toxic delivery of premiRNA and antimiRNA molecules might be of great interest. The aim of the present paper is to determine whether an argininocalix[4]arene is able to efficiently deliver miRNA, premiRNA, and antimiRNA molecules to target cells, preserving their biological activity. This study points out that (1) the toxicity of argininocalix[4]arene 1 is low, and it can be proposed for long-term treatment of target cells, being that this feature is a pre-requisite for the development of therapeutic protocols; (2) the delivery of premiRNA and antimiRNA molecules is efficient, being higher when compared with reference gold standards available; and (3) the biological activity of the premiRNAs and antimiRNAs is maintained. This was demonstrated using the argininocalix[4]arene 1 in miRNA therapeutic approaches performed on three well-described experimental model systems: (1) the induction of apoptosis by antimiR-221 in glioma U251 cells; (2) the induction of apoptosis by premiR-124 in U251 cells; and (3) the inhibition of pro-inflammatory IL-8 and IL-6 genes in cystic fibrosis IB3-1 cells. Our results demonstrate that the argininocalix[4]arene 1 should be considered a very useful delivery system for efficient transfer to target cells of both premiRNA and antimiRNA molecules, preserving their biological activity.
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Liu WG, Han LL, Xiang R. Retracted: Protection of miR-19b in hypoxia/reoxygenation-induced injury by targeting PTEN. J Cell Physiol 2019; 234:16226-16237. [PMID: 30767206 DOI: 10.1002/jcp.28286] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 11/22/2018] [Accepted: 11/30/2018] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To study the role and mechanism of microRNA 19b (miR-19b) in hypoxia/reoxygenation (H/R)-induced injury by targeting PTEN. METHODS PC12 and BV2 cells induced by H/R were treated with miR-19b mimics/inhibitors or small interfering PTEN (si-PTEN), respectively. Lactate dehydrogenase (LDH) level, malondialdehyde (MDA), and superoxide dismutase (SOD) content was detected. Besides, cell viability and apoptosis were determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, Hoechst33342 staining, and flow cytometry, whereas mitochondrial membrane potential (MMP) tested by JC-1 assay, and reactive oxygen species (ROS) evaluated by the dichloro-dihydro-fluorescein diacetate assay. The ischemia/reperfusion (I/R) rats model was used to investigate the effects of miR-19b in vivo test. The infarct area and apoptosis rates in brain tissues were detected by 2,3,5-triphenyltetrazolium chloride and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling staining, respectively. miR-19b and PTEN/PI3K/Akt pathway-related proteins were detected by quantitative reverse-transcription polymerase chain reaction and western blot analysis. RESULTS miR-19b mimics could reduce LDH, MDA, and ROS levels and decline cell apoptosis, but enhance the viability, MMP, and SOD activity with decreased PTEN and cleaved caspase, as well as increased p-Akt/Akt and Bcl-2/Bax ratios in H/R-induced PC12 and BV2 cells. However, miR-19b inhibitors led to completely opposite results to aggravate H/R-induced cell injury. Meanwhile, si-PTEN could reverse the effect of miR-19b inhibitors on H/R-induced injury. Moreover, treatment with miR-19b agomir after I/R in vivo sufficiently decreased infarct area and reduced apoptosis rates by targeting PTEN through the regulation of the PI3K/Akt pathway. CONCLUSION miR-19b could inhibit oxidative stress, enhance cell MMP, promote cell survival, and inhibit cell apoptosis by targeting PTEN via the regulation of the PI3K/Akt pathway, thus playing the neuronal protective effects.
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Affiliation(s)
- Wan-Gen Liu
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Li-Li Han
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Rong Xiang
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei, China
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31
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miR-19 family: A promising biomarker and therapeutic target in heart, vessels and neurons. Life Sci 2019; 232:116651. [PMID: 31302195 DOI: 10.1016/j.lfs.2019.116651] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 07/06/2019] [Accepted: 07/10/2019] [Indexed: 12/17/2022]
Abstract
The miR-19 family, including miR-19a, miR-19b-1 and miR-19b-2, arises from two different paralogous clusters miR-17-92 and miR-106a-363. Although it is identified as oncogenic miRNA, the miR-19 family has also been found to play important roles in regulating normal tissue development. The precise control of miR-19 family level is essential for keeping tissue homeostasis and normal development of organisms. Its dysregulation leads to dysplasia, disease and even cancer. Therefore, this review focuses on the roles of miR-19 family in the development and disease of heart, vessels and neurons to estimate the potential value of miR-19 family as diagnostic biomarker or therapeutic target of cardiac, neurological, and vascular diseases.
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Guan X, Lu J, Sun F, Li Q, Pang Y. The Molecular Evolution and Functional Divergence of Lamprey Programmed Cell Death Genes. Front Immunol 2019; 10:1382. [PMID: 31281315 PMCID: PMC6596451 DOI: 10.3389/fimmu.2019.01382] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 05/31/2019] [Indexed: 12/23/2022] Open
Abstract
The programmed cell death (PDCD) family plays a significant role in the regulation of cell survival and apoptotic cell death. However, the evolution, distribution and role of the PDCD family in lampreys have not been revealed. Thus, we identified the PDCD gene family in the lamprey genome and classified the genes into five subfamilies based on orthologs of the genes, conserved synteny, functional domains, phylogenetic tree, and conserved motifs. The distribution of the lamprey PDCD family and the immune response of the PDCD family in lampreys stimulated by different pathogens were also demonstrated. In addition, we investigated the molecular function of lamprey PDCD2, PDCD5, and PDCD10. Our studies showed that the recombinant lamprey PDCD5 protein and transfection of the L-PDCD5 gene induced cell apoptosis, upregulated the expression of the associated X protein (BAX) and TP53 and downregulated the expression of B cell lymphoma 2 (BCL-2) independent of Caspase 3. In contrast, lamprey PDCD10 suppressed apoptosis in response to cis-diaminedichloro-platinum (II) stimuli. Our phylogenetic and functional data not only provide a better understanding of the evolution of lamprey PDCD genes but also reveal the conservation of PDCD genes in apoptosis. Overall, our results provide a novel perspective on lamprey immune regulation mediated by the PDCD family.
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Affiliation(s)
- Xin Guan
- Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Jiali Lu
- Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Feng Sun
- Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Qingwei Li
- Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Yue Pang
- Lamprey Research Center, Liaoning Normal University, Dalian, China
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Yin Y, Yang C. miRNA‐30‐3p improves myocardial ischemia via the PTEN/PI3K/AKT signaling pathway. J Cell Biochem 2019; 120:17326-17336. [PMID: 31131466 DOI: 10.1002/jcb.28996] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 02/10/2019] [Accepted: 02/14/2019] [Indexed: 01/28/2023]
Affiliation(s)
- Yugang Yin
- Department of Geriatric Cardiology Nanjing Jinling Hospital Nanjing China
| | - Chun Yang
- Department of Geriatric Cardiology Nanjing Jinling Hospital Nanjing China
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Combination of peripheral blood mononuclear cell miR-19b-5p, miR- 221, miR-25-5p, and hypertension correlates with an increased heart failure risk in coronary heart disease patients. Anatol J Cardiol 2019; 20:100-109. [PMID: 30088484 PMCID: PMC6237960 DOI: 10.14744/anatoljcardiol.2018.43255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Objective: The aim of this study was to explore the differences in microRNA (miRNA) profiles in peripheral blood mononuclear cells (PBMCs) between coronary heart disease (CHD) patients with and without heart failure (HF) and to assess the values of differentially expressed miRNAs (DEMs) regarding HF risk in CHD patients. Methods: Six CHD patients with HF and six age- and gender-matched CHD patients without HF were enrolled in the exploration stage, and 44 CHD patients with HF and 42 age- and gender-matched CHD patients without HF were recruited in the validation stage. Peripheral blood samples were collected from all the participants, and PBMCs were separated for miRNA detection. miRNA microarray and quantitative polymerase chain reaction were performed to assess the miRNA expression. Results: In the exploration stage, heat map analysis showed that CHD patients with HF could be distinguished from those without HF using PMBC miRNA expressions; 63 downregulated DEMs and 84 upregulated DEMs in PBMCs were identified in CHD patients with HF using volcano map, and top 8 DEMs were selected based on their p values. In the validation stage, PBMC miR-221, miR-19b-5p, and miR-25-5p were found to be markedly dysregulated in CHD patients with HF. Multiple logistic regression analysis showed PBMC miR-221, miR-19b-5p, miR-25-5p, and hypertension to be the independent predictive factors for HF in CHD patients. A receiver operating characteristic curve demonstrated that area under curve of the combination of miR-221, miR-19b-5p, miR-25-5p, and hypertension was 0.871 (95% CI: 0.794-0.944). Conclusion: CHD patients with and without HF could be differentiated according to PBMC miRNA profiles, and the combination of PBMC miR-19b-5p, miR-221, miR-25-5p, and hypertension correlates with an increased HF risk in CHD patients.
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Guan W, Liu Y, Liu Y, Wang Q, Ye HL, Cheng YG, Kuang HX, Jiang XC, Yang BY. Proteomics Research on the Protective Effect of Mangiferin on H9C2 Cell Injury Induced by H 2O 2. Molecules 2019; 24:molecules24101911. [PMID: 31109015 PMCID: PMC6572523 DOI: 10.3390/molecules24101911] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/06/2019] [Accepted: 05/15/2019] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular disease is one of the leading causes of morbidity and mortality worldwide. Mangiferin is a natural glucosylxanthone with antioxidant and anti-inflammatory properties, which has been confirmed to protect cardiac cells from myocardial infarction and myocardial ischemia reperfusion injury (MIRI); however, the underlying mechanism is still unclear. As oxidative stress is a major pathogenesis of MIRI, an H9C2 cell injury induced by hydrogen peroxide (H2O2) was established to simulate MIRI in vitro. Herein, the protective effect of mangiferin against MIRI was evaluated and the isobaric tags for relative and absolute quantitation (iTRAQ)-based proteomics was applied to explore the underlying molecular mechanism. In this research, mangiferin markedly ameliorated the oxidative imbalance by increasing the antioxidative capacity of the H9C2 cell. Moreover, proteomics analysis revealed that mangiferin pretreatment brought twenty differently-expressed proteins back to normal, most of which were related to glucose and fatty acid metabolism. Glycolysis, citrate cycle, and fatty acid degradation pathways were highlighted by Kyoto Encyclopedia of Gene and Genomes (KEGG) analysis. Western blot validation of six cardiac metabolism-related proteins were consistent with the proteomics analysis. Taken together, mangiferin protected the cardiomyocytes from MIRI by enhancing the antioxidant capacity and increasing the activities of glycolysis, citrate cycle, and fatty acid degradation pathways.
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Affiliation(s)
- Wei Guan
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Yan Liu
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Yuan Liu
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Qi Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin 150036, China.
| | - Hong-Liang Ye
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Yan-Gang Cheng
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Hai-Xue Kuang
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Xi-Cheng Jiang
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Bing-You Yang
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China.
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Mayer O, Seidlerová J, Černá V, Kučerová A, Vaněk J, Karnosová P, Bruthans J, Wohlfahrt P, Cífková R, Pešta M, Filipovský J. The low expression of circulating microRNA-19a represents an additional mortality risk in stable patients with vascular disease. Int J Cardiol 2019; 289:101-106. [PMID: 31085080 DOI: 10.1016/j.ijcard.2019.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 03/08/2019] [Accepted: 05/02/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Secondary prevention of atherosclerotic vascular diseases represents a cascade of procedures to reduce the risk of future fatal and non-fatal cardiovascular events. We sought to determine whether the expression of selected microRNAs influenced mortality of stable chronic cardiovascular patients. METHODS The plasma concentrations of five selected microRNAs (miR-1, miR-19, miR-126, miR-133 and miR-223) were quantified in 826 patients (mean age 65.2 years) with stable vascular disease (6-36 months after acute coronary syndrome, coronary revascularization or first-ever ischemic stroke). All-cause and cardiovascular mortality rates were followed during our prospective study. RESULTS Low expression (bottom quartile) of all five miRNAs was associated with a significant increase in five-year all-cause death, even when adjusted for conventional risk factors, treatment, raised troponin I and brain natriuretic protein levels [hazard risk ratios (HRRs) were as follows: miR-1, 1.65 (95% CI: 1.16-2.35); miR-19a, 2.27 (95% CI: 1.59-3.23); miR-126, 1.64 (95% CI: 1.15-2.33); miR-133a, 1.46 (95% CI: 1.01-2.12) and miR-223, 2.05 (95% CI: 1.45-2.91)]. Nearly similar results were found if using five-year cardiovascular mortality as the outcome. However, if entering all five miRNAs (along with other covariates) into a single regression model, only low miR-19a remained a significant mortality predictor; and only in patients with coronary artery disease [3.00 (95% CI: 1.77-5.08)], but not in post-stroke patients [1.63 (95% CI: 0.94-2.86)]. CONCLUSIONS In stable chronic coronary artery disease patients, low miR-19a expression was associated with a substantial increase in mortality risk independently of other conventional cardiovascular risk factors.
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Affiliation(s)
- Otto Mayer
- 2nd Department of Internal Medicine, Medical Faculty of Charles University and University Hospital, Pilsen, Czech Republic; Biomedical Center, Medical Faculty of Charles University, Pilsen, Czech Republic.
| | - Jitka Seidlerová
- 2nd Department of Internal Medicine, Medical Faculty of Charles University and University Hospital, Pilsen, Czech Republic; Biomedical Center, Medical Faculty of Charles University, Pilsen, Czech Republic
| | - Václava Černá
- Biomedical Center, Medical Faculty of Charles University, Pilsen, Czech Republic; Department of Biology, Medical Faculty of Charles University, Pilsen, Czech Republic
| | - Alena Kučerová
- Biomedical Center, Medical Faculty of Charles University, Pilsen, Czech Republic; Department of Biology, Medical Faculty of Charles University, Pilsen, Czech Republic
| | - Jiří Vaněk
- 2nd Department of Internal Medicine, Medical Faculty of Charles University and University Hospital, Pilsen, Czech Republic
| | - Petra Karnosová
- 2nd Department of Internal Medicine, Medical Faculty of Charles University and University Hospital, Pilsen, Czech Republic; Biomedical Center, Medical Faculty of Charles University, Pilsen, Czech Republic
| | - Jan Bruthans
- 2nd Department of Internal Medicine, Medical Faculty of Charles University and University Hospital, Pilsen, Czech Republic; Centre for Cardiovascular Prevention, First Faculty of Medicine, Charles, University and Thomayer's Hospital, Prague, Czech Republic
| | - Peter Wohlfahrt
- Centre for Cardiovascular Prevention, First Faculty of Medicine, Charles, University and Thomayer's Hospital, Prague, Czech Republic
| | - Renata Cífková
- Centre for Cardiovascular Prevention, First Faculty of Medicine, Charles, University and Thomayer's Hospital, Prague, Czech Republic
| | - Martin Pešta
- Biomedical Center, Medical Faculty of Charles University, Pilsen, Czech Republic; Department of Biology, Medical Faculty of Charles University, Pilsen, Czech Republic
| | - Jan Filipovský
- 2nd Department of Internal Medicine, Medical Faculty of Charles University and University Hospital, Pilsen, Czech Republic; Biomedical Center, Medical Faculty of Charles University, Pilsen, Czech Republic
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Follistatin-Like 1 Attenuates Ischemia/Reperfusion Injury in Cardiomyocytes via Regulation of Autophagy. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9537382. [PMID: 31139662 PMCID: PMC6500619 DOI: 10.1155/2019/9537382] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/05/2019] [Accepted: 03/25/2019] [Indexed: 12/27/2022]
Abstract
Background The cardioprotective effect of FSTL1 has been extensively studied in recent years, but its role in myocardial ischemia/reperfusion injury (IRI) is unclear. In this study, we investigated the effect of FSTL1 pretreatment on myocardial IRI as well as the possible involvement of autophagic pathways in its effects. Methods The effects of FSTL1 on the viability and apoptosis of rat cardiomyocytes were investigated after exposure of cardiomyocytes to hypoxia/ischemia by using the CCK-8 assay and Annexin V/PI staining. Further, western blot analysis was used to detect the effects of FSTL1 pretreatment on autophagy-associated proteins, and confocal microscopy was used to observe autophagic flux. To confirm the role of autophagy, the cells were treated with the autophagy promoter rapamycin or the autophagy inhibitor 3-methyladenine, and cell viability and apoptosis during IRI were observed. These effects were also observed after treatment with rapamycin or 3-methyladenine followed by FSTL1 administration and IRI. Results FSTL1 pretreatment significantly increased viability and reduced apoptosis in cardiomyocytes exposed to hypoxia/ischemia conditions. Further, FSTL1 pretreatment affected the levels of the autophagy-related proteins and enhanced autophagic flux during IRI. In addition, cell viability was enhanced and apoptosis was decreased by rapamycin treatment, while these effects were reversed by 3-MA treatment. However, when the myocardial cells were pretreated with rapamycin or 3-methyladenine, there was no significant change in their viability or apoptosis with FSTL1 treatment during IRI. Conclusions FSTL1 plays a protective role in myocardial IRI by regulating autophagy.
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micro-RNAs dependent regulation of DNMT and HIF1α gene expression in thrombotic disorders. Sci Rep 2019; 9:4815. [PMID: 30894555 PMCID: PMC6426883 DOI: 10.1038/s41598-018-38057-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/21/2018] [Indexed: 01/25/2023] Open
Abstract
MicroRNAs (miRNAs) are involved in a wide variety of cellular processes and post-transcriptionally regulate several mechanism and diseases. However, contribution of miRNAs functioning during hypoxia and DNA methylation together is less understood. The current study was aimed to find a shared miRNAs signature upstream to hypoxia (via HIF gene family members) and methylation (via DNMT gene family members). This was followed by the global validation of the hypoxia related miRNA signature using miRNA microarray meta-analysis of the hypoxia induced human samples. We further concluded the study by looking into thrombosis related terms and pathways enriched during protein-protein interaction (PPI) network analysis of these two sets of gene family. Network prioritization of these shared miRNAs reveals miR-129, miR-19band miR-23b as top regulatory miRNAs. A comprehensive meta-analysis of microarray datasets of hypoxia samples revealed 29 differentially expressed miRNAs. GSEA of the interacting genes in the DNMT-HIF PPI network indicated thrombosis associated pathways including “Hemostasis”, “TPO signaling pathway” and “angiogenesis”. Interestingly, the study has generated a novel database of candidate miRNA signatures shared between hypoxia and methylation, and their relation to thrombotic pathways, which might aid in the development of potential therapeutic biomarkers.
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Sun MH, Chen XC, Han M, Yang YN, Gao XM, Ma X, Huang Y, Li XM, Gai MT, Liu F, Ma YT, Chen BD. Cardioprotective effects of constitutively active MEK1 against H 2O 2-induced apoptosis and autophagy in cardiomyocytes via the ERK1/2 signaling pathway. Biochem Biophys Res Commun 2019; 512:125-130. [PMID: 30876692 DOI: 10.1016/j.bbrc.2019.03.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 03/01/2019] [Indexed: 12/11/2022]
Abstract
Oxidative stress injury is one of the main mechanisms of ischemia-reperfusion (I/R) injury. The extracellular signal-regulated kinase (ERK1/2) pathway plays an important role in cardioprotective during acute myocardial infarction. In this study, we used constitutively active MEK1 gene (CaMEK) transfection strategy to investigate whether CaMEK provides a protective effect against apoptosis and autophagy induced by Hydrogen peroxide (H2O2) in neonatal rat cardiac ventricular cardiomyocytes (NCMs) and the underlying mechanisms. As a result, CaMEK attenuated H2O2-induced apoptosis and cytotoxicity in NCMs, evidenced by decreased apoptotic cells and the ratio of Bax/Bcl-2, increased the mitochondrial membrane potential (Δψm) and cell vitality and reduced the level of lactate dehydrogenase (LDH). Further studies revealed that CaMEK attenuated H2O2-induced autophagy, evidenced by the decreased LC3-Ⅱ/LC3-Ⅰratio and SQSTM1/p62 (p62) degradation. Furthermore, we demonstrated that CaMEK phosphorylated the ERK1/2 pathway-related proteins, ERK1/2, p70S6K and GSK3β, in NCMs with H2O2 stimulation. In contrast, these effects could be reversed by co-treatment with the ERK1/2 inhibitor, PD98059. These results suggest that CaMEK plays an important role in protecting cardiomyocytes against H2O2-induced injury and autophagy in NCMs via ERK1/2 pathway. Therefore, transfection of CaMEK may provide a hopeful therapeutic strategy for I/R.
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Affiliation(s)
- Ming-Hui Sun
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, PR China; Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830054, PR China; Department of Nephrology, Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, PR China
| | - Xiao-Cui Chen
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830054, PR China; Clinical Medical Research Institute of Xinjiang Medical University, Urumqi, 830054, PR China
| | - Min Han
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, PR China; Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830054, PR China
| | - Yi-Ning Yang
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, PR China
| | - Xiao-Ming Gao
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830054, PR China; Clinical Medical Research Institute of Xinjiang Medical University, Urumqi, 830054, PR China; State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Urumqi, 830000, PR China; Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, 830054, PR China; Baker Heart and Diabetes Institute, Department of Surgery, Central Clinical School, Monash University, Melbourne, Australia
| | - Xiang Ma
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, PR China
| | - Ying Huang
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, PR China
| | - Xiao-Mei Li
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, PR China
| | - Min-Tao Gai
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830054, PR China; Clinical Medical Research Institute of Xinjiang Medical University, Urumqi, 830054, PR China
| | - Fen Liu
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830054, PR China; Clinical Medical Research Institute of Xinjiang Medical University, Urumqi, 830054, PR China
| | - Yi-Tong Ma
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, PR China.
| | - Bang-Dang Chen
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830054, PR China; Clinical Medical Research Institute of Xinjiang Medical University, Urumqi, 830054, PR China.
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MicroRNA-19b-1 reverses ischaemia-induced heart failure by inhibiting cardiomyocyte apoptosis and targeting Bcl2 l11/BIM. Heart Vessels 2019; 34:1221-1229. [DOI: 10.1007/s00380-018-01336-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 12/28/2018] [Indexed: 11/26/2022]
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Margolis LM, Berryman CE, Murphy NE, Carrigan CT, Young AJ, Carbone JW, Pasiakos SM. PI3K-AKT-FOXO1 pathway targeted by skeletal muscle microRNA to suppress proteolytic gene expression in response to carbohydrate intake during aerobic exercise. Physiol Rep 2018; 6:e13931. [PMID: 30548426 PMCID: PMC6289907 DOI: 10.14814/phy2.13931] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/06/2018] [Indexed: 11/24/2022] Open
Abstract
Ingesting protein and carbohydrate together during aerobic exercise suppresses the expression of specific skeletal muscle microRNA and promotes muscle hypertrophy. Determining whether there are independent effects of carbohydrate and protein on microRNA will allow for a clearer understanding of the mechanistic role microRNA serve in regulating skeletal muscle protein synthetic and proteolytic responses to nutrition and exercise. This study determined skeletal muscle microRNA responses to aerobic exercise with or without carbohydrate, and recovery whey protein (WP). Seventeen males were randomized to consume carbohydrate (CHO; 145 g; n = 9) or non-nutritive control (CON; n = 8) beverages during exercise. Muscle was collected before (BASE) and after 80 min of steady-state exercise (1.7 ± 0.3 V̇O2 L·min-1 ) followed by a 2-mile time trial (17.9 ± 3.5 min; POST), and 3-h into recovery after consuming WP (25 g; REC). RT-qPCR was used to determine microRNA and mRNA expression. Bioinformatics analysis was conducted using the mirPath software. Western blotting was used to assess protein signaling. The expression of six microRNA (miR-19b-3p, miR-99a-5p, miR-100-5p, miR-222-3p, miR-324-3p, and miR-486-5p) were higher (P < 0.05) in CHO compared to CON, all of which target the PI3K-AKT, ubiquitin proteasome, FOXO, and mTORC1 pathways. p-AKTThr473 and p-FOXO1Thr24 were higher (P < 0.05) in POST CHO compared to CON. The expression of PTEN was lower (P < 0.05) in REC CHO than CON, while MURF1 was lower (P < 0.05) POST CHO than CON. These findings suggest the mechanism by which microRNA facilitate skeletal muscle adaptations in response to exercise with carbohydrate and protein feeding is by inhibiting markers of proteolysis.
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Affiliation(s)
- Lee M. Margolis
- Military Nutrition DivisionU.S. Army Research Institute of Environmental MedicineNatickMassachusetts
- Oak Ridge Institute of Science and EducationOak RidgeTennessee
| | - Claire E. Berryman
- Military Nutrition DivisionU.S. Army Research Institute of Environmental MedicineNatickMassachusetts
- Oak Ridge Institute of Science and EducationOak RidgeTennessee
- Department of Nutrition, Food, and Exercise SciencesFlorida State UniversityTallahasseeFlorida
| | - Nancy E. Murphy
- Military Nutrition DivisionU.S. Army Research Institute of Environmental MedicineNatickMassachusetts
| | - Christopher T. Carrigan
- Military Nutrition DivisionU.S. Army Research Institute of Environmental MedicineNatickMassachusetts
| | - Andrew J. Young
- Military Nutrition DivisionU.S. Army Research Institute of Environmental MedicineNatickMassachusetts
- Oak Ridge Institute of Science and EducationOak RidgeTennessee
| | - John W. Carbone
- Oak Ridge Institute of Science and EducationOak RidgeTennessee
- School of Health SciencesEastern Michigan UniversityYpsilantiMichigan
| | - Stefan M. Pasiakos
- Military Nutrition DivisionU.S. Army Research Institute of Environmental MedicineNatickMassachusetts
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Gong YY, Luo JY, Wang L, Huang Y. MicroRNAs Regulating Reactive Oxygen Species in Cardiovascular Diseases. Antioxid Redox Signal 2018; 29:1092-1107. [PMID: 28969427 DOI: 10.1089/ars.2017.7328] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
SIGNIFICANCE Oxidative stress caused by overproduction of reactive oxygen species (ROS) in cells is one of the most important contributors to the pathogenesis of cardiovascular and metabolic diseases such as hypertension and atherosclerosis. Excessive accumulation of ROS impairs, while limiting oxidative stress protects cardiovascular and metabolic function through various cellular mechanisms. Recent Advances: MicroRNAs (miRNAs) are novel regulators of oxidative stress in cardiovascular cells that modulate the expression of redox-related genes. This article summarizes recent advances in our understanding of how miRNAs target major ROS generators, antioxidant signaling pathways, and effectors in cells of the cardiovascular system. CRITICAL ISSUES The role of miRNAs in regulating ROS in cardiovascular cells is complicated because miRNAs can target multiple redox-related genes, act on redox regulatory pathways indirectly, and display context-dependent pro- or antioxidant effects. The complex regulatory network of ROS and the plethora of targets make it difficult to pin point the role of miRNAs and develop them as therapeutics. Therefore, these properties should be considered when designing strategies for therapeutic or diagnostic development. FUTURE DIRECTIONS Future studies can gain a better understanding of redox-related miRNAs by investigating their own regulatory mechanisms and the dual role of ROS in the cardiovascular systems. The combination of improved study design and technical advancements will reveal newer pathophysiological importance of redox-related miRNAs.
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Affiliation(s)
- Yao-Yu Gong
- 1 School of Life Sciences, The Chinese University of Hong Kong , Hong Kong SAR, China .,2 School of Biomedical Sciences, The Chinese University of Hong Kong , Hong Kong SAR, China
| | - Jiang-Yun Luo
- 2 School of Biomedical Sciences, The Chinese University of Hong Kong , Hong Kong SAR, China .,3 Institute of Vascular Medicine, Shenzhen Research Institute and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong , Hong Kong SAR, China
| | - Li Wang
- 2 School of Biomedical Sciences, The Chinese University of Hong Kong , Hong Kong SAR, China .,3 Institute of Vascular Medicine, Shenzhen Research Institute and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong , Hong Kong SAR, China
| | - Yu Huang
- 2 School of Biomedical Sciences, The Chinese University of Hong Kong , Hong Kong SAR, China .,3 Institute of Vascular Medicine, Shenzhen Research Institute and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong , Hong Kong SAR, China
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Zhang Y, Fang J, Ma H. Inhibition of miR-182-5p protects cardiomyocytes from hypoxia-induced apoptosis by targeting CIAPIN1. Biochem Cell Biol 2018; 96:646-654. [PMID: 29671338 DOI: 10.1139/bcb-2017-0224] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Myocardial infarction (MI), a type of ischemic heart disease, is generally accompanied by apoptosis of cardiomyocytes. MicroRNAs play the vital roles in the development and physiology of MI. Here, we established a downregulation model of miR-182-5p in H9c2 cells under hypoxic conditions to investigate the potential molecular mechanisms for miR-182-5p in hypoxia-induced cardiomyocyte apoptosis (HICA). RT-qPCR indicated that miR-182-5p levels exhibit a time-dependent increase in the rate of apoptosis induced by hypoxia. The results from the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and LDH (lactate dehydrogenase) assays indicated that cardiomyocyte injury noticeably increased after exposure to hypoxia. Meanwhile, hypoxia dramatically increased the apoptosis rate [which was reflected in the results from the annexin V – propidium iodide (PI) assay], enhanced caspase-3 activity, and reduced the expression of Bcl-2. Downregulation of miR-182-5p can significantly reverse hypoxia-induced cardiomyocyte injury or apoptosis. Importantly, bioinformatic analysis and dual-luciferase reporter assay revealed that CIAPIN1 (cytokine-induced apoptosis inhibitor 1) was a direct functional target of miR-182-5p, and that inhibition of miR-182-5p can lead to an increase in CIAPIN1 expression at both the mRNA and protein levels. Furthermore, the knockdown of CIAPIN1 with small interfering RNAs (siRNAs) efficiently abolished the protective effects of miR-182-5p inhibitor on HICA, demonstrating that miR-182-5p plays a pro-apoptotic role in cardiomyocytes under hypoxic conditions by downregulating CIAPIN1. Collectively, our results demonstrate that miR-182-5p may serve an underlying target to prevent cardiomyocytes from hypoxia-induced injury or apoptosis.
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Affiliation(s)
- Yunsong Zhang
- Intensive Care Unit, the Affiliated Hospital of Shandong Traditional Chinese Medicine University, Jinan 250011, Shandong Province, China
| | - Jun Fang
- First Department of Cardiothoracic Surgery, Chongqing Kanghuazhonglian Cardiovascular Disease Hospital, Chongqing 400025, China
| | - Huiwen Ma
- Department of Medical Oncology, Chongqing Cancer Institute & Hospital & Cancer Center, Chongqing 400030, China
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Zhang Y, Liu X, Zhang L, Li X, Zhou Z, Jiao L, Shao Y, Li M, Leng B, Zhou Y, Liu T, Liu Q, Shan H, Du Z. Metformin Protects against H 2O 2-Induced Cardiomyocyte Injury by Inhibiting the miR-1a-3p/GRP94 Pathway. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 13:189-197. [PMID: 30292140 PMCID: PMC6172474 DOI: 10.1016/j.omtn.2018.09.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 08/30/2018] [Accepted: 09/02/2018] [Indexed: 01/30/2023]
Abstract
Ischemia-reperfusion (I/R) injury is a major side effect of the reperfusion treatment of the ischemic heart. Few therapies are available for the effective prevention of this injury caused by the oxidative stress-induced cardiomyocyte apoptosis. Metformin was shown to have a potential cardiac protective effect and ability to reduce cardiac events, but the exact mechanism remains unclear. Here, we aimed to confirm and investigate the mechanisms underlying potential metformin activity against I/R injury in response to oxidative stress. We determined that the expression of miR-1a-3p was significantly increased in neonatal rat ventricular cells (NRVCs), which were exposed to H2O2in vitro and in the hearts of mice that underwent the I/R injury. MiR-1a-3p was shown to target the 3′ UTR of GRP94, which results in the accumulation of un- or misfolded proteins, leading to the endoplasmic reticulum (ER) stress. The obtained results demonstrated that C/EBP β directly induces the upregulation of miR-1a-3p by binding to its promoter. Furthermore, as a direct allosteric AMPK activator, metformin was shown to activate AMPK and significantly reduce C/EBP β and miR-1a-3p levels compared with those in the control group. In conclusion, metformin protects cardiomyocytes against H2O2 damage through the AMPK/C/EBP β/miR-1a-3p/GRP94 pathway, which indicates that metformin may be applied for the treatment of I/R injury.
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Affiliation(s)
- Ying Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Xue Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Lu Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Xuelian Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Zhongqiu Zhou
- Institute of Clinical Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Lei Jiao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Yingchun Shao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Mengmeng Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Bing Leng
- Pharmacy Intravenous Admixture Service, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yuhong Zhou
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Tianyi Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China; Department of Pharmaceutics, Dalian Children's Hospital, Dalian, Liaoning 116001, P.R. China
| | - Qiushuang Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Hongli Shan
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.
| | - Zhimin Du
- Institute of Clinical Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.
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Li Y, Lu J, Bao X, Wang X, Wu J, Li X, Hong W. MiR-499-5p protects cardiomyocytes against ischaemic injury via anti-apoptosis by targeting PDCD4. Oncotarget 2018; 7:35607-35617. [PMID: 27231854 PMCID: PMC5094948 DOI: 10.18632/oncotarget.9597] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/17/2016] [Indexed: 12/18/2022] Open
Abstract
Recent studies have reported that miRNAs might play critical roles in acute myocardial infarction (AMI). The objective of this study is to investigate the role of miR-499-5p in AMI and its potential molecular mechanisms. The expression level of MiR-499-5p was remarkably decreased in the infarcted myocardial tissues and in the cultured neonatal rat cardiomyocytes induced by hypoxia. Overexpression or knockdown of miR-499-5p decreased or increased the apoptotic rates of cultured cardiomyocytes in vitro. In addition, ectopic overexpression of miR-499-5p in the rat AMI models with agomir reduced the myocardial infarct size through decreasing the cardiomyocytes apoptosis in the infarcted area of the rat hearts. PDCD4 (programmed cell death 4) was verified as a direct target of miR-499-5p by luciferase report assay, and ectopic overexpression or inhibition of miR-499-5p could inhibit or increase the PDCD4 expression at both the mRNA and protein levels. Furthermore, we found that ectopic overexpression of PDCD4 without miR-499-5p binding sites reversed miR-499-5p-mediated cardiomyocytes apoptosis. Together, these findings revealed the role of miR-499-5p in protecting the cardiomyocytes against apoptosis induced by AMI via its direct target PDCD4, which providing evidence for the miR-499-5p/PDCD4 pathway as a potential therapeutic target for patients with AMI.
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Affiliation(s)
- Yingqing Li
- Department of Emergency, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Jianhua Lu
- Department of Emergency, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Xueming Bao
- Department of Emergency, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Xifu Wang
- Department of Emergency, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Junhua Wu
- Department of Emergency, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Xiongbin Li
- Department of Emergency, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Weiqiang Hong
- Department of Emergency, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
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Zhang Z, Li H, Chen S, Li Y, Cui Z, Ma J. Knockdown of MicroRNA-122 Protects H9c2 Cardiomyocytes from Hypoxia-Induced Apoptosis and Promotes Autophagy. Med Sci Monit 2017; 23:4284-4290. [PMID: 28871076 PMCID: PMC5597036 DOI: 10.12659/msm.902936] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Acute myocardial infarction (AMI) is a severe disease causing heart failure and sudden death. Studies indicate that microRNAs (miRNAs) are involved in the pathophysiology of AMI. In the present study, we carefully explored the effects of miR-122 on myocardial hypoxia injury and its possible underlying mechanism. MATERIAL AND METHODS miR-122 expression was analyzed in H9c2 cardiomyocytes after being transfected with miR-122 mimic, ASO-miR-122, or negative control. Cell viability and apoptosis were investigated by CCK-8 assays and flow cytometry analysis, respectively. Cell migration was analyzed using wound-healing assays. Western blotting was performed to analyze the expression of phosphatase and tensin homolog deleted on chromosome 10 (PTEN)/phosphatidylinositol 3-hydroxy kinase (PI3K)/AKT and LC3-II/LC3-I. RESULTS Hypoxia exposure significantly inhibited H9c2 cell viability (P<0.01). miR-122 overexpression promoted the hypoxia-induced H9c2 cell proliferation and migration loss (P<0.05), and cell apoptosis was increased (P<0.05). miR-122 knockdown enhanced cell viability and decreased cell apoptosis (P<0.05). Knockdown of miR-122 enhanced PTEN/PI3K/AKT activation and cell autophagy. Overexpression of miR-122 inhibited the PTEN/PI3K/AKT pathway and cell autophagy pathway. CONCLUSIONS The expression of miR-122 is involved in hypoxia-induced H9c2 cardiomyocyte injury. Knockdown of miR-122 protects H9c2 cells from hypoxia-induced apoptosis and enhances cell viability.
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Affiliation(s)
- Zaiwei Zhang
- Department of Cardiovascular Medicine, Jining No.1 People's Hospital, Jining, Shandong, China (mainland)
| | - Hu Li
- Department of Cardiovascular Medicine, Jining No.1 People's Hospital, Jining, Shandong, China (mainland)
| | - Shasha Chen
- Department of Cardiovascular Medicine, Jining No.1 People's Hospital, Jining, Shandong, China (mainland)
| | - Ying Li
- Department of Cardiovascular Medicine, Jining No.1 People's Hospital, Jining, Shandong, China (mainland)
| | - Zhiyuan Cui
- Department of Cardiovascular Medicine, Jining No.1 People's Hospital, Jining, Shandong, China (mainland)
| | - Jie Ma
- Department of Cardiovascular Medicine, Jining No.1 People's Hospital, Jining, Shandong, China (mainland)
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47
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Zhang X, Liu F, Wang Q, Geng Y. Overexpressed microRNA-506 and microRNA-124 alleviate H2O2-induced human cardiomyocyte dysfunction by targeting krüppel-like factor 4/5. Mol Med Rep 2017; 16:5363-5369. [PMID: 28849090 PMCID: PMC5647069 DOI: 10.3892/mmr.2017.7243] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 06/06/2017] [Indexed: 01/23/2023] Open
Abstract
Krüppel-like factors (KLFs) regulate a wide variety of cellular functions and modulate pathological processes. In the present study, a post-translational mechanism of microRNAs (miRs) was investigated in H2O2-induced human cardiomyocyte (HCM) injury. In H2O2-cultured HCM cells, reactive oxygen species and apoptotic cells were measured via flow cytometry. miR-506/-124 mimics and inhibitors were transfected to induce gain or loss of miR-506/-124 function. Cell proliferation was analyzed by an MTT assay. The targeted genes were predicted by a bioinformatics algorithm and confirmed by a dual luciferase reporter assay. The mRNA and protein expression levels were measured by reverse transcription-polymerse chain reaction analysis and western blotting, respectively. The results indicated that H2O2 induced significant apoptosis and increased the concentration of reactive oxygen species (ROS) in HCMs. H2O2 markedly upregulated the expression levels of KLF4 and KLF5, and downregulated the expression levels of miR-506 and miR-124 in the HCMs. In addition, bioinformatics analysis showed the potential miR-506 and miR-124 binding sites within the 3′-untranslated region of KLF4 and KLF5 in the HCMs. The overexpression of miR-506 and miR-124 inhibited the H2O2-induced upregulation of KLF4 and KLF5 in the HCMs. The overexpression of miR-506 and miR-214 reversed the H2O2-induced apoptosis and increase of ROS in the HCMs. In conclusion, the overexpression of miR-506 and miR-214 were confirmed to have a protective effect against H2O2-induced HCM injury by suppressing the expression of KLF4 and KLF5.
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Affiliation(s)
- Xiuzhou Zhang
- Department of Cardiology, Binzhou People's Hospital, Binzhou, Shandong 256610, P.R. China
| | - Fuyan Liu
- Department of Anesthesiology, Binzhou People's Hospital, Binzhou, Shandong 256610, P.R. China
| | - Qingqing Wang
- Department of Pharmacy, Binzhou People's Hospital, Binzhou, Shandong 256610, P.R. China
| | - Yuxue Geng
- Department of Cardiology, Binzhou People's Hospital, Binzhou, Shandong 256610, P.R. China
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Li RK, Gao J, Guo LH, Huang GQ, Luo WH. PTENP1 acts as a ceRNA to regulate PTEN by sponging miR-19b and explores the biological role of PTENP1 in breast cancer. Cancer Gene Ther 2017; 24:309-315. [PMID: 28731027 DOI: 10.1038/cgt.2017.29] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 05/26/2017] [Accepted: 06/06/2017] [Indexed: 02/05/2023]
Abstract
This study aimed to investigate role of long noncoding RNA PTENP1 regulating PTEN expression via miR-19b to affect breast cancer (BC) progression. We measured expressions of PTENP1, miR-19b and PTEN in 65 matched BC cancerous and noncancerous tissues by quantitative real-time fluorescence PCR (qRT-PCR) and investigated the biological effects of PTENP1 in BC MDA-MB-231 cells by several in vitro experiments including CCK8, wound healing, transwell and Annexin V-FITC/PI analysis. Besides, the competing endogenous RNA (ceRNA) activity of PTENP1 on miR-19b was detected by luciferase reporter assay, and the expressions of related genes and proteins were determined by western blot assay and qRT-PCR. Increased PTENP1 and PTEN and decreased miR-19b were observed in BC tissues and cell lines. Further, PTENP1 and PTEN are direct targets of miR-19b, and overexpressed PTENP1 in MDA-MB-231 cells could supress cell proliferation, migration and invasion and promote cell apoptosis. Moreover, PTENP1 could upregulate PTEN via its ceRNA interaction on miR-19b, as well as induced the upregulation of p53 and downregulation of p-AKT. Enhanced PTENP1 could inhibit BC cell growth, metastasis and tumourigenicity by inhibiting miR-19b and facilitating PTEN in BC, thereby may represent a novel target for diagnosis and treatment of BC.
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Affiliation(s)
- R-K Li
- Department of Clinical Laboratory, Shantou University Medical College, Shantou, Guangdong, China
- Department of Clinical Laboratory, The Second People's Hospital of Baoan District of Shenzhen, Shenzhen, Guangdong, China
| | - J- Gao
- Department of Clinical Laboratory, The Second People's Hospital of Baoan District of Shenzhen, Shenzhen, Guangdong, China
| | - L-H Guo
- Department of Clinical Laboratory, People's Hospital of New District Longhua, Shenzhen, Guangdong, China
| | - G-Q Huang
- Department of Clinical Laboratory, People's Hospital of New District Longhua, Shenzhen, Guangdong, China
| | - W-H Luo
- Department of Clinical Laboratory, Shantou University Medical College, Shantou, Guangdong, China
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Peng Q, Wang X, Wu K, Liu K, Wang S, Chen X. Irisin attenuates H 2O 2-induced apoptosis in cardiomyocytes via microRNA-19b/AKT/mTOR signaling pathway. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:7707-7717. [PMID: 31966617 PMCID: PMC6965300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 05/20/2017] [Indexed: 06/10/2023]
Abstract
Irisin, a novel muscle-secreted peptide, has been proposed to play a potential role in improving myocardial remodeling that leads to impaired myocardial function and heart failure. It has been reported that controlling reactive oxygen species (ROS) exposure could increase cardiomyocyte survival and prevent pathological remodeling of the myocardium. Therefore, we aimed to determine the potential protective effects of Irisin pretreatment against ROS in cardiomyocytes and explored the potential mechanisms. H9c2 cells that were subjected to H2O2 in vitro were used to mimic myocardial remodeling. Then, the effects of Irisin on myocardial cell proliferation, apoptosis and cellular ROS levels were evaluated during this process by using MTT assay, flow cytometry analysis and 2'7'-Dichloro fluoresc in diacetate (DCFH-DA). In order to determine whether Irisin could regulate any microRNA (miRNA) during this process, six miRNAs that are known to be involved in apoptosis of cardiomyocytes were assessed by qRT-PCR. The protective effects of Irisin on cardiomyocytes mediated by miR-19b were evaluated by detecting cell proliferation and apoptosis. In addition, the potential target of miR-19b was predicted with bioinformatics tools and verified using dual-luciferase reporter assay. Finally, the protein levels of members of the phosphatidylinositol 3-kinase (PI3K)/Akt/signaling pathway were also examined by Western Blot. Our study showed that Irisin treatment improved H2O2-induced cell viability and attenuated the levels of intracellular ROS and the apoptosis of cardiomyocytes in a dose-dependent manner. We also demonstrated that Irisin promoted cell viability and inhibited cell apoptosis via upregulating miR-19b expression. In addition, PTEN was identified as a functional target gene of miR-19b that was responsible for its anti-apoptotic effects in cardiomyocytes. Further study demonstrated that Irisin-regulated miR-19b could reactivate the AKT/mTOR signaling pathway blocked by H2O2 in H9c2 cells. We demonstrated that Irisin strongly enhances cellular proliferation and preventsapoptosis of cardiomyocytes as well as attenuates the levels of intracellular ROS induced by H2O2. These effects might be mediated through the miR-19b/AKT/mTOR signaling pathway, which provide a new insight into the mechanism by which Irisin may have beneficial effect on myocardial remodeling.
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Affiliation(s)
- Qing Peng
- Department of Cardiology, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
- Department of Cardiology, The Affiliated Hospital of Southwest Medical UniversityLuzhou 646000, Sichuan, China
| | - Xiaojie Wang
- Department of Cardiology, The Affiliated Hospital of Southwest Medical UniversityLuzhou 646000, Sichuan, China
| | - Kai Wu
- Department of Cardiology, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Kai Liu
- Department of Cardiology, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Si Wang
- Department of Cardiology, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
| | - Xiaoping Chen
- Department of Cardiology, West China Hospital, Sichuan UniversityChengdu 610041, Sichuan, China
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50
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Diao H, Liu B, Shi Y, Song C, Guo Z, Liu N, Song X, Lu Y, Lin X, Li Z. MicroRNA-210 alleviates oxidative stress-associated cardiomyocyte apoptosis by regulating BNIP3. Biosci Biotechnol Biochem 2017; 81:1712-1720. [PMID: 28661226 DOI: 10.1080/09168451.2017.1343118] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Oxidative stress-induced myocardial apoptosis and necrosis are involved in ischemia/reperfusion (I/R) injury. This study was performed to investigate microRNA (miR)-210's role in oxidative stress-related myocardial damage. The expression of miR-210 was upregulated in myocardial tissues of I/R rats, while that of Bcl-2 adenovirus E1B 19kDa-interacting protein 3 (BNIP3) was downregulated. To simulate in vivo oxidative stress, H9c2 cells were treated with H2O2 for 48 h. MiR-210 level was increased upon H2O2 stimulation, peaked at 8 h, and then decreased. An opposite expression pattern of BNIP3 was observed. BNIP3 was demonstrated as a direct target of miR-210 via luciferase reporter assay. H2O2-induced cell apoptosis was attenuated by miR-210 mimics, whereas aggravated by miR-210 inhibitor. MiR-210 knockdown-induced cell apoptosis in presence of H2O2 was attenuated by BNIP3 siRNA. Our work demonstrates that miR-210 plays a protective role in H2O2-induced cardiomyocyte apoptosis at least by regulating the pro-apoptotic BNIP3.
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Affiliation(s)
- Hongying Diao
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Bin Liu
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Yongfeng Shi
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Chunli Song
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Ziyuan Guo
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Ning Liu
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Xianjing Song
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Yang Lu
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Xiaoye Lin
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
| | - Zhuoran Li
- a Department of Cardiology , The Second Hospital of Jilin University , Changchun , People's Republic of China
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