Abstract
In this study, we investigated the role ofhistone deacetylase 4 (HDAC4) and MEG3/miR-125a-5p/interferonregulatoryfactor 1 (IRF1) on vascular smooth muscle cell (VSMCs)proliferation. Platelet derived growth factor (PDGF)-BB was used toinduce the proliferation and migration of VSMCs. The expressionsof MEG3, miR-125a-5p, HDAC4 and IRF1in VSMCs were detectedby qRT-PCR and western blot, respectively. ChIP assay was usedto determine the relationship between MEG3 and HDAC4. Doubleluciferase reporter assay was used to test the regulation betweenmiR-125-5p and IRF1. Results showed that PDGF-BB decreasedthe expression of MEG3 and IRF1, while increased the expressionof miR-125a-5p and HDAC4. In addition, HDAC4 knockdowninhibited the proliferation and migration of VSMCs via upregulatingMEG3 and downregulating miR-125a-5p. MiR-125a-5p inhibitorcould repress the proliferation and migration of VSMCs andalleviate intimal hyperplasia (IH) by directly upregulating IRF1expression. These results suggested that HDAC4 interferenceinhibited PDGF-BB-induced VSMCs proliferation via regulatingMEG3/miR-125a-5p/IRF1 axis, and then alleviated IH.
Keywords:
HDAC4; IRF1; MEG3; VSMCs; miR-125a-5p.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Becaplermin / pharmacology
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Cells, Cultured
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Gene Expression Regulation / drug effects*
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Histone Deacetylases / chemistry
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Histone Deacetylases / genetics
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Histone Deacetylases / metabolism*
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Interferon Regulatory Factor-1 / antagonists & inhibitors
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Interferon Regulatory Factor-1 / genetics
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Interferon Regulatory Factor-1 / metabolism*
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Male
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MicroRNAs / antagonists & inhibitors
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MicroRNAs / genetics
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MicroRNAs / metabolism*
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Muscle, Smooth, Vascular / cytology*
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Muscle, Smooth, Vascular / drug effects
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Muscle, Smooth, Vascular / metabolism
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Neointima / drug therapy
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Neointima / pathology*
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RNA, Long Noncoding / antagonists & inhibitors
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RNA, Long Noncoding / genetics
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RNA, Long Noncoding / metabolism*
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Rats
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Rats, Sprague-Dawley
Substances
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Interferon Regulatory Factor-1
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Irf1 protein, rat
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MEG3 non-coding RNA, rat
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MIRN125 microRNA, rat
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MicroRNAs
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RNA, Long Noncoding
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Becaplermin
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HDAC4 protein, rat
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Histone Deacetylases
Grants and funding
This work was supported by the National Natural Science Foundation of China (No.81770409; No.81770630), the Natural Science Foundation of Zhejiang Province (No.LY16H020004; No.LY17H020011), Innovative Research Groups of the General Surgery of Wenzhou (No.C20150003) and Science and Technology Project of Wenzhou Science & Technology Bureau (No.Y20170080).