Breast Cancer: Circular RNAs Mediating Efficacy in Preclinical In Vivo Models

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Circular RNAs (circRNAs) are increasingly recognized for their roles in cancer.
• Identifying novel therapeutic targets for breast cancer remains a critical challenge.

Purpose of the Study:

• To identify circular RNAs (circRNAs) with therapeutic potential in preclinical breast cancer models.
• To explore the druggability and validation of identified circRNAs as novel breast cancer targets.

Main Methods:

• Literature search for circRNAs demonstrating efficacy in preclinical breast cancer in vivo models.
• Analysis of up-regulated and down-regulated circRNAs.
• Discussion of target reconstitution, inhibition, and druggability.

Main Results:

• Identified 26 up-regulated and six down-regulated circRNAs with efficacy in preclinical breast cancer models.
• Highlighted pathways involving cytokine suppressors, high-mobility group proteins, NF-κB, and Hippo signaling as key drivers.
• Noted the potential of trefoil factor-1 in estrogen receptor-positive breast cancer metastasis and mucin 19 as an unexplored target.

Conclusions:

• Several circRNAs show promise as novel therapeutic targets for breast cancer.
• Further investigation into specific circRNAs and pathways could lead to new treatment strategies.
• Mucin 19 represents a novel, unexplored target for breast cancer therapy.