1. Transcriptome Analysis of the Chicken Follicular Theca Cells with miR-135a-5p Suppressed
- Author
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Cao Dingguo, Lei Qiuxia, Liu Wei, Tang Cunwei, Zhou Yan, Liu Jie, Li Fuwei, and Han Haixia
- Subjects
endocrine system ,animal structures ,Gallus gallus ,QH426-470 ,Investigations ,transcriptome sequencing ,Biology ,gga-miR-135a-5p ,Transcriptome ,03 medical and health sciences ,Follicle ,0302 clinical medicine ,Follicular phase ,Genetics ,Animals ,Molecular Biology ,Genetics (clinical) ,Cell Proliferation ,030304 developmental biology ,0303 health sciences ,Reporter gene ,Gene Expression Profiling ,ovarian theca cells ,Transfection ,In vitro ,Cell biology ,MicroRNAs ,KLF4 ,Theca ,Theca Cells ,030220 oncology & carcinogenesis ,embryonic structures ,Female ,Chickens - Abstract
As a class of transcription regulators, numerous miRNAs have been verified to participate in regulating ovary follicular development in chickens (Gallus gallus). Previously we showed that gga-miR-135a-5p has significant differential expression between high and low-yield chicken ovaries, and the abundance of gga-miR-135a-5p is significantly higher in follicular theca cells than in granulosa cells. However, the exact role of gga-miR-135a-5p in chicken follicular theca cells is unclear. In this study, primary chicken follicular theca cells were isolated and then transfected with gga-miR-135a-5p inhibitor. Transcriptome sequencing was performed in chicken follicular theca cells with or without transfection. Differentially expressed genes (DEGs) were analyzed using bioinformatics. A dual-luciferase reporter assay was used to verify the target relationship between gga-miR-135a-5p and predicted targets within the DEGs. Compared with the normal chicken follicle theca cells, 953 up-regulated and 1060 down-regulated genes were detected in cells with gga-miR-135a-5p inhibited. The up-regulated genes were significantly enriched in Gene Ontology terms and pathways involved in cell proliferation and differentiation. In chicken follicular theca cells, Krüppel-like factor 4 (KLF4), ATPase phospholipid transporting 8A1 (ATP8A1), and Complexin-1 (CPLX1) were significantly up-regulated when the expression of gga-miR-135a-5p was inhibited. In addition, KLF4, ATP8A1, and CPLX1 confirmed as targets of gga-miR-135a-5p by using a dual-luciferase assay in vitro. The results suggest that gga-mir-135a-5p may involve in proliferation and differentiation in chicken ovarian follicular theca cells by targeting KLF4, ATP8A1, and CPLX1.
- Published
- 2020