RNA-binding protein quaking: a multifunctional regulator in tumour progression

作者：Wangyu Zhu, Weiwei Yang, Guoping Sun, Jian Huang · 发表于：Annals of Medicine · 年份：2024 · DOI：10.1080/07853890.2024.2443046 · 被引用次数：17 · 研究领域：RNA Research and Splicing、RNA regulation and disease、Nuclear Structure and Function

BACKGROUND: Quaking (QKI) is a member of the signal transduction and activators of RNA (STAR) family, performing a crucial multifunctional regulatory role in alternative splicing, mRNA precursor processing, mRNA transport and localization, mRNA stabilization, and translation during tumour progression. Abnormal QKI expression or fusion mutations lead to aberrant RNA and protein expression, thereby promoting tumour progression. However, in many types of tumour, QKI played a role as tumour suppressor, the regulatory role of QKI in tumour progression remains ambiguous. OBJECTIVES: This review aims to analyze the isoform and function of QKI, the impact of QKI-regulated gene expression or signalling pathway alterations on tumour progression, and its potential clinical applications as a predictive marker or target for tumour therapy. METHODS: We reviewed recent studies and summarized the function of QKI alteration in tumour progression. RESULTS: QKI mediate post-transcriptional gene regulation including alternative splicing, polyadenylation, mRNA stabilization, mRNA subcellular location, and noncoding RNA by binding to the QRE elements of targeted nucleotide. The dysregulation of QKI is intricately correlated to tumour proliferation, metastasis, angiogenesis, tumor stem cells, the tumour microenvironment, and treatment sensitivity, and represents as a potential biological predictor in tumour diagnosis and prognosis. CONCLUSIONS: QKI play a critical role as tumour suppressor or an on...