The microRNA miR-124 inhibits vascular smooth muscle cell proliferation by targeting S100 calcium-binding protein A4 (S100A4)
- Authors
- Choe, Nakwon; Kwon, Duk-Hwa; Shin, Sera; Kim, Yong Sook; Kim, Young-Kook; Kim, Jaetaek; Ahn, Youngkeun; Eom, Gwang H.; Kook, Hyun
- Issue Date
- Apr-2017
- Publisher
- WILEY
- Keywords
- carotid artery injury; miR-124; neointima; S100A4; vascular smooth muscle cell proliferation
- Citation
- FEBS LETTERS, v.591, no.7, pp 1041 - 1052
- Pages
- 12
- Journal Title
- FEBS LETTERS
- Volume
- 591
- Number
- 7
- Start Page
- 1041
- End Page
- 1052
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/4638
- DOI
- 10.1002/1873-3468.12606
- ISSN
- 1873-3468
1873-3468
- Abstract
- S100 calcium-binding protein A4 (S100A4) induces proliferation and migration of vascular smooth muscle cells (VSMCs). We aimed to find the microRNA regulating S100A4 expression. S100A4 transcripts are abruptly increased in the acute phase of carotid arterial injury 1 day later (at day 1) but gradually decreases at days 7 and 14. Bioinformatics analysis reveals that miR-124 targets S100A4. VSMC survival is attenuated by miR-124 mimic but increased by miR-124 inhibitor. miR-124 decreases immediately after carotid arterial injury but dramatically increases at days 7 and 14. miR-124 inhibitor-induced cell proliferation is blocked by S100A4 siRNA, whereas miR-124-induced cell death is recovered by S100A4. Our findings suggest that miR-124 is a novel regulator of VSMC proliferation and may play a role in the development of neointimal proliferation.
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