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MicroRNA-27 inhibits adipogenic differentiation in orbital fibroblasts from patients with Graves' orbitopathy

 Sun Young Jang  ;  Min Kyung Chae  ;  Joon H. Lee  ;  Eun Jig Lee  ;  Jin Sook Yoon 
 PLoS One, Vol.14(8) : e0221077, 2019 
Journal Title
 PLoS One 
Issue Date
BACKGROUND: To investigate the role of microRNA (miR)-27a and miR-27b in adipogenesis in an in vitro model of Graves' orbitopathy (GO). METHODS: Orbital fat tissues were harvested from GO and non-GO participants for primary orbital fibroblast cultures. The expression levels of miR-27a and miR-27b between GO and non-GO orbital fat tissues were compared. During adipogenesis of GO orbital fibroblasts, the expression levels of miR-27a and miR-27b were determined, and the effects of mimics of miR-27a and miR-27b transfection on adipogenesis of GO orbital fibroblast were investigated. RESULTS: Real time-polymerase chain reaction showed significantly more decreases in miR-27a and miR-27b levels in orbital fat tissues in GO participants than in non-GO participants (p < 0.05). The expression of both miR-27a and miR-27b was highest in orbital fibroblasts at day 0 and declined gradually after the induction of adipogenic differentiation. The expression levels of PPARγ, CCAAT/enhancer binding protein (C/EBP)α and C/EBPβ were decreased and Oil Red O-stained lipid droplets were lower in GO orbital fibroblasts transfected with miR-27a and miR-27b mimics than in negative controls. CONCLUSIONS: Our results indicated that miR-27a and miR-27b inhibited adipogenesis in orbital fibroblasts from GO patients. Further studies are required to examine the potential of miR-27a and miR-27b as targets for therapeutic strategies.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Yoon, Jin Sook(윤진숙) ORCID logo https://orcid.org/0000-0002-8751-9467
Lee, Eun Jig(이은직) ORCID logo https://orcid.org/0000-0002-9876-8370
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