Albarqi Mennatallah M Y, Ryder Sean P
Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School, Worcester, MA, United States.
Front Cell Dev Biol. 2023 Jan 4;10:1094295. doi: 10.3389/fcell.2022.1094295. eCollection 2022.
RNA passed from parents to progeny controls several aspects of early development. The germline of the free-living nematode contains many families of evolutionarily conserved RNA-binding proteins (RBPs) that target the untranslated regions of mRNA transcripts to regulate their translation and stability. In this review, we summarize what is known about the binding specificity of germline RNA-binding proteins and the mechanisms of mRNA regulation that contribute to their function. We examine the emerging role of miRNAs in translational regulation of germline and embryo development. We also provide an overview of current technology that can be used to address the gaps in our understanding of RBP regulation of mRNAs. Finally, we present a hypothetical model wherein multiple 3'UTR-mediated regulatory processes contribute to pattern formation in the germline to ensure the proper and timely localization of germline proteins and thus a functional reproductive system.
从亲代传递给子代的RNA控制着早期发育的多个方面。自由生活线虫的生殖系包含许多进化上保守的RNA结合蛋白(RBP)家族,这些蛋白靶向mRNA转录本的非翻译区以调节其翻译和稳定性。在这篇综述中,我们总结了关于生殖系RNA结合蛋白的结合特异性以及有助于其功能的mRNA调控机制的已知信息。我们研究了miRNA在生殖系和胚胎发育的翻译调控中的新作用。我们还概述了当前可用于填补我们对mRNA的RBP调控理解空白的技术。最后,我们提出了一个假设模型,其中多个3'UTR介导的调控过程有助于生殖系中的模式形成,以确保生殖系蛋白的正确和及时定位,从而形成一个功能性的生殖系统。