Circular RNAs in Cancer Stem Cells: Insights into Their Roles and Mechanisms (Review)

Overview

Journal Int J Mol Med

Specialty Genetics

Date 2025 Feb 11

PMID 39930823

Authors

Lunyu Yang

Yuling Yi

Zhu Mei

Dongmei Huang

Sitian Tang

Liyi Hu

Ling Liu

Affiliations

Soon will be listed here.

Abstract

Cancer stem cells (CSCs) represent a small, yet pivotal subpopulation of tumor cells that play significant roles in tumor initiation, progression and therapeutic resistance. Circular RNAs (circRNAs) are a distinct class of RNAs characterized by their closed‑loop structures, lacking 5' to 3'ends. There is growing evidence that circRNAs are integral to the development and regulation of CSCs. Aberrant expression of circRNAs in CSCs can contribute to oncogenic properties and drug resistance. Specifically, oncogenic circRNAs modulate CSC behavior via key signaling pathways, thereby promoting CSC self‑renewal and maintenance, as well as tumor progression. This review summarizes the latest research on the functional roles and regulatory mechanisms of circRNAs in CSC behavior and discusses potential applications and challenges of targeting circRNAs in CSCs. Understanding the intricate interactions between circRNAs and CSCs may lead to novel therapeutic strategies that effectively combat treatment resistance and improve patient outcomes.

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