Relationship between NUDT21 mediated alternative polyadenylation process and tumor

Area of Science:

• Molecular Biology
• Genetics
• Cancer Research

Background:

• Alternative polyadenylation (APA) is a key post-transcriptional regulatory mechanism generating mRNA 3' end diversity in over 60% of human genes.
• Both APA and microRNA (miRNA) regulation control gene expression post-transcriptionally, often by affecting 3' untranslated regions (3' UTRs).
• Nudix Hydrolase 21 (NUDT21) is a critical protein involved in mediating APA, with reported dual roles in cancer as both an oncogene and a tumor suppressor.

Purpose of the Study:

• To review the functions of APA and miRNA regulation.
• To explore the interaction between APA and miRNA.
• To elucidate the roles of these mechanisms in tumor development.

Main Methods:

• Literature review focusing on APA, miRNA, NUDT21, and cancer.
• Analysis of studies investigating the interplay between RNA processing and gene expression.
• Synthesis of current knowledge on NUDT21's role in oncogenesis and tumor suppression.

Main Results:

• APA generates mRNA isoforms with identical coding sequences but varying 3' UTR lengths.
• miRNAs bind to 3' UTRs to regulate gene expression.
• NUDT21-mediated 3' UTR-APA alterations can yield specific molecular signatures for disease biomarkers.

Conclusions:

• The interaction between APA and miRNA, particularly mediated by NUDT21, plays a significant role in various tumor types.
• NUDT21-mediated APA changes offer potential as biomarkers for disease development.
• Modulating NUDT21 levels presents a promising novel therapeutic strategy for cancer treatment.