MiRNA-146a promotes proliferation and migration of rat vascular smooth muscle cells in vitro in a nuclear factor-κB-dependent manner / 南方医科大学学报
Journal of Southern Medical University
; (12): 270-273, 2012.
Article
ي Zh
| WPRIM
| ID: wpr-267619
المكتبة المسؤولة:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>[corrected] To understand the role of miRNA-146a in the proliferation and migration of primarily cultured rat vascular smooth muscle cells (VSMCs) and investigate the mechanisms.</p><p><b>METHODS</b>Primarily cultured rat VSMCs were transfected with a synthesized miRNA-146 inhibitor, a scramble sequence or PBS via Lipofectamine2000. Cell counting kit 8 (CCK8) and transwell assay were employed to assess the proliferation and migration of the transfected cells, and the expressions of nuclear factor-κB p65 (NF-κBp65) and proliferation cell nuclear antigen (PCNA) were detected using Western blotting.</p><p><b>RESULTS</b>A 48-h transfection of the VSMCs with miRNA-146 inhibitor caused significantly lowered miRNA-146a expression as compared with that in VSMCs transfected with the scramble sequence or PBS (P<0.01), resulting also in lowered proliferative and migration ability of the cells (P<0.01). The expression levels of NF-κBp65 and PCNA were remarkably lower in cells transfected with miRNA-146 inhibitor than in the cells in the other two groups (P<0.05).</p><p><b>CONCLUSION</b>miRNA-146a is capable of promoting the proliferation and migration of rat VMSCs probably by enhancing the expression of NF-κBp65.</p>
النص الكامل:
1
الفهرس:
WPRIM
الموضوع الرئيسي:
Transfection
/
Cell Movement
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Rats, Sprague-Dawley
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Proliferating Cell Nuclear Antigen
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Cell Biology
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Myocytes, Smooth Muscle
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MicroRNAs
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Cell Proliferation
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Transcription Factor RelA
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Primary Cell Culture
المحددات:
Animals
اللغة:
Zh
مجلة:
Journal of Southern Medical University
السنة:
2012
نوع:
Article