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Identi?cation of a novel antisense RNA that regulates growth hormone receptor expression in chickens

文献类型： 外文期刊

作者： Lin, Shudai 1 ; Zhang, Zihao 1 ; Xie, Tingting 1 ; Hu, Bowen 1 ; Ruan, Zhuohao 1 ; Zhang, Li 5 ; Li, Congjun 3 ; Li, Char 1 ;

作者机构： 1.South China Agr Univ, Coll Anim Sci, Minist Agr, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Guangzhou 510642, Guangdong, Peoples R China

2.South China Agr Univ, Coll Anim Sci, Minist Agr, Key Lab Chicken Genet Breeding & Reprod, Guangzhou 510642, Guangdong, Peoples R China

3.ARS, Anim Genom & Improvement Lab, USDA, Beltsville, MD USA

4.ARS, Anim Biosci & Biotechnol Lab, USDA, Beltsville, MD USA

5.Guangdong Ocean Univ, Agr Coll, Zhanjiang, Peoples R China

关键词： Natural antisense transcript; chicken; GHR; GHBP; RNA-RNA duplex; fat deposition

期刊名称：RNA BIOLOGY （ 影响因子：4.652； 五年影响因子：6.774 ）

ISSN： 1547-6286

年卷期： 2019 年 16 卷 5 期

页码：

收录情况： SCI

摘要： Natural antisense transcripts (NATs) are widely present in mammalian genomes and act as pivotal regulator molecules of gene expression. However, studies on NATs in the chicken are relatively rare. We identi?ed a novel antisense transcript in the chicken, designated GHR-AS-EST, transcribed from the growth hormone receptor (GHR) locus, which encodes a well-known regulatory molecule of muscle development and fat deposition. GHR-AS-EST is predominantly expressed in the chicken liver and muscle tissues. GHR-AS-EST sequence conservation among vertebrates is weak. GHR-AS-EST forms an RNA-RNA duplex with GHBP to increase its stability, and regulates the expression of GHR sense transcripts at both the mRNA and protein levels. Further, GHR-AS-EST promotes cell proliferation by stimulating the expression of signaling factors in the JAK2/STAT pathway, and contributes to fat deposition via downregulating the expression of signaling factors in the JAK2/SOCS pathway in LMH hepatocellular carcinoma cells. We expect that the discovery of a NAT for a regulatory gene associated with cell proliferation and lipolysis will further our understanding of the molecular regulation of both muscle development and fat deposition.

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