长链非编码 RNA ACVR2B-as1 通过调控糖酵解活性与 ALDOA 相互作用调节人精原干细胞的自我更新和凋亡。

LncRNA ACVR2B-as1 interacts with ALDOA to regulate the self-renewal and apoptosis of human spermatogonial stem cells by controlling glycolysis activity.

机构信息

Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, 410011, China.

Department of Urology, Haikou Municipal Hospital, Haikou, Hainan, China.

出版信息

Cell Mol Life Sci. 2024 Sep 10;81(1):391. doi: 10.1007/s00018-024-05414-w.

Abstract

Human spermatogonial stem cells (SSCs) have significant applications in reproductive medicine and regenerative medicine because of their great plasticity. Nevertheless, it remains unknown about the functions and mechanisms of long non-coding RNA (LncRNA) in regulating the fate determinations of human SSCs. Here we have demonstrated that LncRNA ACVR2B-as1 (activin A receptor type 2B antisense RNA 1) controls the self-renewal and apoptosis of human SSCs by interaction with ALDOA via glycolysis activity. LncRNA ACVR2B-as1 is highly expressed in human SSCs. LncRNA ACVR2B-as1 silencing suppresses the proliferation and DNA synthesis and enhances the apoptosis of human SSCs. Mechanistically, our ChIRP-MS and RIP assays revealed that ACVR2B-as1 interacted with ALDOA in human SSCs. High expression of ACVR2B-as1 enhanced the proliferation, DNA synthesis, and glycolysis of human SSCs but inhibited their apoptosis through up-regulation of ALDOA. Importantly, overexpression of ALDOA counteracted the effect of ACVR2B-as1 knockdown on the aforementioned biological processes. Collectively, these results indicate that ACVR2B-as1 interacts with ALDOA to control the self-renewal and apoptosis of human SSCs by enhancing glycolysis activity. This study is of great significance because it sheds a novel insight into molecular mechanisms underlying the fate decisions of human SSCs and it may offer innovative approaches to address the etiology of male infertility.

摘要

人类精原干细胞(SSCs)具有很大的可塑性,在生殖医学和再生医学中有重要的应用。然而,长链非编码 RNA(LncRNA)在调节人类 SSCs 命运决定中的功能和机制仍不清楚。在这里,我们证明 LncRNA ACVR2B-as1(激活素 A 受体型 2B 反义 RNA 1)通过与 ALDOA 的糖酵解活性相互作用来控制人类 SSCs 的自我更新和凋亡。LncRNA ACVR2B-as1 在人类 SSCs 中高度表达。沉默 LncRNA ACVR2B-as1 抑制人类 SSCs 的增殖和 DNA 合成,并增强其凋亡。在机制上,我们的 ChIRP-MS 和 RIP 测定显示,ACVR2B-as1 在人类 SSCs 中与 ALDOA 相互作用。ACVR2B-as1 的高表达通过上调 ALDOA 增强了人类 SSCs 的增殖、DNA 合成和糖酵解,但抑制了其凋亡。重要的是,ALDOA 的过表达抵消了 ACVR2B-as1 敲低对上述生物学过程的影响。总之,这些结果表明,ACVR2B-as1 通过增强糖酵解活性与 ALDOA 相互作用,控制人类 SSCs 的自我更新和凋亡。这项研究意义重大,因为它为人类 SSCs 命运决定的分子机制提供了新的见解,并可能为解决男性不育的病因提供创新方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e902/11387566/3bcc57ad3e8e/18_2024_5414_Fig1_HTML.jpg

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