MIR205HG Is a Long Noncoding RNA that Regulates Growth Hormone and Prolactin Production in the Anterior Pituitary.

MIR205HG Is a Long Noncoding RNA that Regulates Growth Hormone and Prolactin Production in the Anterior Pituitary.
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DOI:
10.1016/j.devcel.2019.03.012
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发表时间:
2019-05-20
期刊:
影响因子:
11.8
通讯作者:
van Oers, Nicolai S. C.
van Oers, Nicolai S. C.
中科院分区:
生物学1区
文献类型:
--
作者:
Du, Qiumei;Hoover, Ashley R.;Dozmorov, Igor;Raj, Prithvi;Khan, Shaheen;Molina, Erika;Chang, Tsung-Cheng;de la Morena, Maria Teresa;Cleaver, Ondine B.;Mendell, Joshua T.;van Oers, Nicolai S. C.

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MicroRNA (miRNA) 由初级 miRNA 转录本 (pri-miRNA) 加工而成,其中许多被注释为长非编码 RNA (lncRNA)。我们评估了 miR-205 的宿主基因 MIR205HG 是否具有作为 lncRNA 的独立功能。通过比较靶向删除 MIR205HG 和 miR-205 的小鼠,揭示了 lncRNA 在垂体前叶中的功能作用。缺乏 MIR205HG 的小鼠的 Pit1、生长激素和催乳素暂时减少。这在一定程度上是通过该 lncRNA 结合和调节 Pit1 与 Zbtb20 的转录活性的能力来介导的。敲低泌乳素中的 MIR205HG 会降低 Pit1、Zbtb20、催乳素和生长激素的表达,而其过表达则会增强这些转录物的水平。 MIR205HG 对垂体的影响独立于 miR-205。这些数据支持 MIR205HG 作为 lncRNA 的作用,调节垂体前叶的生长激素和催乳素的产生。
MicroRNAs (miRNAs) are processed from primary miRNA transcripts (pri-miRNAs), many of which are annotated as long noncoding RNAs (lncRNAs). We assessed whether MIR205HG, the host gene for miR-205, has independent functions as a lncRNA. Comparing mice with targeted deletions of MIR205HG and miR-205 revealed a functional role for the lncRNA in the anterior pituitary. Mice lacking MIR205HG had a temporal reduction in Pit1, growth hormone, and prolactin. This was mediated, in part, through the ability of this lncRNA to bind and regulate the transcriptional activity of Pit1 in conjunction with Zbtb20. Knockdown of MIR205HG in lactotropes decreased the expression of Pit1, Zbtb20, prolactin, and growth hormone, while its overexpression enhanced the levels of these transcripts. The effects of MIR205HG on the pituitary were independent of miR-205. The data support a role for MIR205HG as a lncRNA that regulates growth hormone and prolactin production in the anterior pituitary.
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