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OSTM1 antisense RNA 1 (OSTM1-AS1)
- Target
- OSTM1-AS1
- Molecular classification
- Long noncoding RNA, Antisense RNA, Non-protein coding RNA, Competing endogenous RNA (ceRNA)
01
Overview
OSTM1 antisense RNA 1 (OSTM1-AS1) is a long noncoding RNA that acts as an oncogenic factor in Wilms' tumor by sponging miR-514a-3p, which relieves microRNA-mediated suppression of MELK, thereby driving tumor cell proliferation, migration, and resistance to apoptosis. Its expression is significantly increased in Wilms' tumor tissues, and genetic knockdown experiments demonstrate reduced cell growth and tumorigenicity, suggesting its potential as a biomarker and therapeutic target for Wilms' tumor. OSTM1-AS1 exemplifies the disease relevance of antisense long noncoding RNAs in cancer biology and post-transcriptional gene regulation.
- Other names
- OSTM1-AS1OSTM1 antisense RNA 1 (non-protein coding)OSTM1 antisense RNA 1 (OSTM1-AS1)
02
Mechanism of action
Inhibition via antisense RNA knockdown (e.g., siRNA or antisense oligonucleotides theoretically could reduce OSTM1-AS1 expression, leading to decreased tumor cell viability and migration). Additionally, it functions through miRNA pathway modulation by sponging miR-514a-3p to relieve suppression of MELK, a kinase involved in cell proliferation.
03
Biological functions
Post-transcriptional regulationmiRNA sponging (specifically miR-514a-3p)Regulation of cell proliferationRegulation of cell migrationInhibition of apoptosisRNA-mediated oncogenic signaling
04
Disease associations
Cancer (Wilms' tumor)Tumorigenesis (general cancer-related function)
05
Safety considerations
Off-target effects from RNA-based therapeutics (general class safety concern for long noncoding RNA targets, including potential alteration of normal physiological gene regulation)Lack of validated drug safety data (as no drugs currently target OSTM1-AS1 directly)
06
Biomarkers
OSTM1-AS1 expression levelMELK proteinmiR-514a-3p level
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