The Emerging Roles of the RNA Binding Protein QKI in Cardiovascular Development and Function.

The Emerging Roles of the RNA Binding Protein QKI in Cardiovascular Development and Function.
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DOI:
10.3389/fcell.2021.668659
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发表时间:
2021
影响因子:
5.5
通讯作者:
Shou W
Shou W
中科院分区:
生物学2区
文献类型:
--
作者:
Chen X;Yin J;Cao D;Xiao D;Zhou Z;Liu Y;Shou W

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RNA 结合蛋白 (RBP) 具有广泛的生物学和生理功能,对于调节前 mRNA 转录后加工、细胞内迁移和 mRNA 稳定性至关重要。 QKI又名Quaking,是信号转导和RNA激活(STAR)家族的成员,该家族也属于异质核核糖核蛋白K-(hnRNP K-)同源结构域蛋白家族。存在三种主要的选择性剪接异构体:QKI-5、QKI-6 和 QKI-7,其羧基末端结构域不同。它们具有共同的 RNA 结合特性,但每种亚型都可以以独特的细胞类型特异性方式以不同的方式调节前 mRNA 剪接、运输或稳定性。此前,QKI 因其在神经系统疾病中的重要作用而闻名。最近的一系列工作进一步证明 QKI 在更广泛的生物系统中发挥着重要作用,例如心血管发育、单核细胞向巨噬细胞分化、骨代谢和癌症进展。在这篇小综述中,我们将重点讨论 QKI 在调节心脏和血管发育和功能中的新兴作用及其与心血管病理生理学的潜在联系。
RNA binding proteins (RBPs) have a broad biological and physiological function and are critical in regulating pre-mRNA posttranscriptional processing, intracellular migration, and mRNA stability. QKI, also known as Quaking, is a member of the signal transduction and activation of RNA (STAR) family, which also belongs to the heterogeneous nuclear ribonucleoprotein K- (hnRNP K-) homology domain protein family. There are three major alternatively spliced isoforms, QKI-5, QKI-6, and QKI-7, differing in carboxy-terminal domains. They share a common RNA binding property, but each isoform can regulate pre-mRNA splicing, transportation or stability differently in a unique cell type-specific manner. Previously, QKI has been known for its important role in contributing to neurological disorders. A series of recent work has further demonstrated that QKI has important roles in much broader biological systems, such as cardiovascular development, monocyte to macrophage differentiation, bone metabolism, and cancer progression. In this mini-review, we will focus on discussing the emerging roles of QKI in regulating cardiac and vascular development and function and its potential link to cardiovascular pathophysiology.
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