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Characterization and functional analysis of lncRNA2690 in regulating the growth cycle of the hair follicle in rabbits

文献类型： 外文期刊

作者： Bao, Zhiyuan 1 ; Zhai, Pin 2 ; Yao, Fan 1 ; Ren, Yuyao 1 ; Zhao, Bohao 1 ; Chen, Yang 1 ; Wu, Xinsheng 1 ;

作者机构： 1.Yangzhou Univ, Coll Anim Sci & Technol, Yangzhou, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Anim Sci, Yangzhou, Jiangsu, Peoples R China

关键词： Angora rabbit; dermal papilla cells; hair follicles; lncRNA2690

期刊名称：ANIMAL GENETICS （ 影响因子：2.884； 五年影响因子：2.92 ）

ISSN： 0268-9146

年卷期： 2022 年 53 卷 6 期

页码：

收录情况： SCI

摘要： Hair follicles (HFs) achieve hair growth and renewal by periodic regeneration. Therefore, exploring the key factors affecting hair growth in rabbits is of great significance for precisely breeding Angora rabbits and improving the competitiveness of the rabbit industry. Based on the results of our previous studies, lncRNA2690 was differentially expressed in the HF cycle using lncRNA-Seq, and the full-length sequence was annotated by bioinformatics analysis. The lncRNA2690 is 363 nt long and is found on chromosome 14 from 163 321 514 to 163 321 872. The lncRNA2690 was predicted to not have the coding ability through open reading frame and CPC2, and the nuclear-cytoplasmic separation experiment showed the lncRNA2690 to be highly expressed in the nucleus (p < 0.01). The expression pattern of lncRNA2690 was further analyzed in the different HF development stages of Angora rabbits using quantitative real-time PCR. The results showed that lncRNA2690 was periodically expressed in HF development, and the expression level was found to be high in the HF resting phases. The overexpression and knockdown of lncRNA2690 were found to significantly upregulate and downregulate the expression of the genes WNT2, CCND1, BMP2, LEF1, and SIAH1 in the rabbit dermal papilla cells (p < 0.01), promoting cell apoptosis and inhibiting cell proliferation (p < 0.01). This indicated that lncRNA2690 negatively regulates the periodic regeneration of the HFs in rabbits. These results provide a basis for the further study of lncRNA2690 in the HF growth cycle of Angora rabbits.

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