Abstract
ABSTRACT MicroRNA plays an important regulatory role in the development of all organisms, including hair follicle development. In order to improve domestic cashmere yield, the role of miRNA in hair follicle cycle has become a research hotspot. However, the molecular and cellular mechanisms by which miRNA-203 regulates hair follicle development are not completely understood. In this study, we found that the relevant target genes of miRNA-203 (DDOST and NAE1) were less expressed in telogen by qPCR and Immunoblotting analysis, contrary to the expression mode of miRNA-203. The Dual-Luciferase reporter assay was used to verify the correlation between miRNA-203 and its target gene expression. The results showed that miRNA-203 specifically binds to the 3 ‘UTR of DDOST and NAE1, and the expression of miRNA-203 significantly down-regulates the expression of DDOST and NAE1 mRNA and protein. Therefore, this study demonstrates that miRNA-203 may regulate hair follicle development in Cashmere goats by targeting DDOST and NAE1.
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