卵泡膜
生物
基因敲除
卵泡期
卵巢
细胞生长
信使核糖核酸
卵泡
下调和上调
卵泡发生
小RNA
内科学
内分泌学
细胞生物学
男科
细胞培养
基因
胚胎
胚胎发生
遗传学
医学
作者
Li Kang,Chunhong Yang,Haizhen Wu,Qiuyue Chen,Libo Huang,Xianyao Li,Hui Tang,Yunliang Jiang
标识
DOI:10.1089/dna.2017.3863
摘要
Ovarian theca cells play an indispensable role in ovarian follicular development and hormone secretion. miR-26a-5p was reported to be differentially expressed in mature and immature chicken ovaries in our previous study; however, the role of miR-26a-5p in regulating ovarian follicle function is still unclear. In this study, we demonstrated that the expression dynamics of TNRC6A mRNA in either chicken ovaries or follicles showed an opposite trend compared with that of chicken miR-26a-5p expression. miR-26a-5p inhibited TNRC6A mRNA expression by directly targeting its 3'-untranslated region in cultured chicken theca cells. Overexpression of miR-26a-5p promoted chicken follicular theca cell proliferation in vitro. Furthermore, overexpression of miR-26a-5p and knockdown of TNRC6A significantly upregulated the antiapoptotic BCL-2 gene. Taken together, this study revealed the expression dynamics of miR-26a-5p and TNRC6A in chicken ovaries and ovarian follicles and the relationship between the expression of miR-26a-5p and TNRC6A in chicken ovarian theca cells. These results suggest that miR-26a-5p facilitates chicken ovarian theca cell proliferation by targeting the TNRC6A gene.
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