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N 6-methyladenosine (m6A)-circHECA from secondary hair follicle of cashmere goats: identification, regulatory network and expression regulated potentially by methylation of its host gene promoter

文献类型： 外文期刊

作者： Shen, Jincheng 1 ; Hui, Taiyu 1 ; Bai, Man 1 ; Fan, Yixing 1 ; Zhu, Yubo 1 ; Zhang, Qi 1 ; Xu, Ruqing 1 ; Zhang, Jialiang 1 ; Wang, Zeying 1 ; Zheng, Wenxin 2 ; Bai, Wenlin 1 ;

作者机构： 1.Shenyang Agr Univ, Coll Anim Sci & Vet Med, Shenyang 110866, Peoples R China

2.Minist Sci & Technol & Xinjiang Uygur Autonomous, State Key Lab Herbivorous Livestock Genet Improvem, Urumqi 830011, Peoples R China

3.Xinjiang Acad Anim Sci, Urumqi 830011, Peoples R China

关键词： Cashmere Goats; CircHECA; N 6-Methyladenosine; Promoter Methylation; Regulatory Network; Transcriptional Pattern

期刊名称：ANIMAL BIOSCIENCE （ 影响因子：2.5； 五年影响因子：2.8 ）

ISSN： 2765-0189

年卷期： 2024 年 37 卷 12 期

页码：

收录情况： SCI

摘要： Objective: The objective of this study was to identify the N 6-methyladenosine (m6A)- circHECA molecule in secondary hair follicles (SHFs) of cashmere goats, and generate its potential regulatory network, as well as explore the potential relationship between transcriptional pattern of m6A-circHECA and promoter methylation of its host gene (HECA). Methods: The validation of circHECA m6A sites was performed using methylation immunoprecipitation (Me-RIP) along with reverse transcription-quantitative polymerase chain reaction (RT-qPCR) technique. The nucleus and cytoplasm localizations of m6A- circHECA were performed using SHF stem cells of cashmere goats with RT-qPCR analysis. Based on in-silico analysis, the regulatory networks of m6A-circHECA were generated with related signal pathway enrichment. The methylation level of promoter region of m6A-circHECA host gene ( HECA ) was assessed by the bisulfite sequencing PCR (BSPPCR) technique. Results: The m6A-circHECA was confirmed to contain four m6A modification sites including m6A-213, m6A-297, m6A-780, and m6A-927, and it was detected mainly in cytoplasm of the SHF stem cells of cashmere goats. The integrated regulatory network analysis showed directly or indirectly complex regulatory relationships between m6A-circHECA of cashmere goats and its potential target molecules: miRNAs, mRNAs, and proteins. The regulatory network and pathway enrichment indicated that m6A-circHECA might play multiple roles in the SHF physiology process of cashmere goats through directly or indirectly interacting or regulating its potential target molecules. A higher methylation level of promoter region of HECA gene in SHFs of cashmere goats might cause the lower expression of m6A-circHECA. Conclusion: The m6A-circHECA might play multiple roles in SHF physiology process of cashmere goats through miRNA mediated pathways along with directly or indirectly interaction with its target proteins. The promoter methylation of m6A-circHECA host gene ( HECA ) most likely was implicated in its expression inhibition in SHFs of cashmere goats.

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