Nucleolin Regulates Pulmonary Artery Smooth Muscle Cell Proliferation under Hypoxia by Modulating miRNA Expression
Hypoxia induces the abnormal proliferation of vascular smooth muscle cells (VSMCs), resulting in the pathogenesis of various vascular diseases. RNA-binding proteins (RBPs) are involved in a wide range of biological processes, including cell proliferation and responses to hypoxia. In this study, we o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Cells |
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| Online Access: | https://www.mdpi.com/2073-4409/12/5/817 |
| _version_ | 1797615594101538816 |
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| author | Jihui Lee Hara Kang |
| author_facet | Jihui Lee Hara Kang |
| author_sort | Jihui Lee |
| collection | DOAJ |
| description | Hypoxia induces the abnormal proliferation of vascular smooth muscle cells (VSMCs), resulting in the pathogenesis of various vascular diseases. RNA-binding proteins (RBPs) are involved in a wide range of biological processes, including cell proliferation and responses to hypoxia. In this study, we observed that the RBP nucleolin (NCL) was downregulated by histone deacetylation in response to hypoxia. We evaluated its regulatory effects on miRNA expression under hypoxic conditions in pulmonary artery smooth muscle cells (PASMCs). miRNAs associated with NCL were assessed using RNA immunoprecipitation in PASMCs and small RNA sequencing. The expression of a set of miRNAs was increased by NCL but reduced by hypoxia-induced downregulation of NCL. The downregulation of miR-24-3p and miR-409-3p promoted PASMC proliferation under hypoxic conditions. These results clearly demonstrate the significance of NCL–miRNA interactions in the regulation of hypoxia-induced PASMC proliferation and provide insight into the therapeutic value of RBPs for vascular diseases. |
| first_indexed | 2024-03-11T07:28:53Z |
| format | Article |
| id | doaj.art-8ee98b6bd12d48279b4c46e3f0ba4566 |
| institution | Directory Open Access Journal |
| issn | 2073-4409 |
| language | English |
| last_indexed | 2024-03-11T07:28:53Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Cells |
| spelling | doaj.art-8ee98b6bd12d48279b4c46e3f0ba45662023-11-17T07:28:33ZengMDPI AGCells2073-44092023-03-0112581710.3390/cells12050817Nucleolin Regulates Pulmonary Artery Smooth Muscle Cell Proliferation under Hypoxia by Modulating miRNA ExpressionJihui Lee0Hara Kang1Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Republic of KoreaDivision of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Republic of KoreaHypoxia induces the abnormal proliferation of vascular smooth muscle cells (VSMCs), resulting in the pathogenesis of various vascular diseases. RNA-binding proteins (RBPs) are involved in a wide range of biological processes, including cell proliferation and responses to hypoxia. In this study, we observed that the RBP nucleolin (NCL) was downregulated by histone deacetylation in response to hypoxia. We evaluated its regulatory effects on miRNA expression under hypoxic conditions in pulmonary artery smooth muscle cells (PASMCs). miRNAs associated with NCL were assessed using RNA immunoprecipitation in PASMCs and small RNA sequencing. The expression of a set of miRNAs was increased by NCL but reduced by hypoxia-induced downregulation of NCL. The downregulation of miR-24-3p and miR-409-3p promoted PASMC proliferation under hypoxic conditions. These results clearly demonstrate the significance of NCL–miRNA interactions in the regulation of hypoxia-induced PASMC proliferation and provide insight into the therapeutic value of RBPs for vascular diseases.https://www.mdpi.com/2073-4409/12/5/817pulmonary artery smooth muscle cellsnucleolinhypoxiamicroRNA |
| spellingShingle | Jihui Lee Hara Kang Nucleolin Regulates Pulmonary Artery Smooth Muscle Cell Proliferation under Hypoxia by Modulating miRNA Expression Cells pulmonary artery smooth muscle cells nucleolin hypoxia microRNA |
| title | Nucleolin Regulates Pulmonary Artery Smooth Muscle Cell Proliferation under Hypoxia by Modulating miRNA Expression |
| title_full | Nucleolin Regulates Pulmonary Artery Smooth Muscle Cell Proliferation under Hypoxia by Modulating miRNA Expression |
| title_fullStr | Nucleolin Regulates Pulmonary Artery Smooth Muscle Cell Proliferation under Hypoxia by Modulating miRNA Expression |
| title_full_unstemmed | Nucleolin Regulates Pulmonary Artery Smooth Muscle Cell Proliferation under Hypoxia by Modulating miRNA Expression |
| title_short | Nucleolin Regulates Pulmonary Artery Smooth Muscle Cell Proliferation under Hypoxia by Modulating miRNA Expression |
| title_sort | nucleolin regulates pulmonary artery smooth muscle cell proliferation under hypoxia by modulating mirna expression |
| topic | pulmonary artery smooth muscle cells nucleolin hypoxia microRNA |
| url | https://www.mdpi.com/2073-4409/12/5/817 |
| work_keys_str_mv | AT jihuilee nucleolinregulatespulmonaryarterysmoothmusclecellproliferationunderhypoxiabymodulatingmirnaexpression AT harakang nucleolinregulatespulmonaryarterysmoothmusclecellproliferationunderhypoxiabymodulatingmirnaexpression |