Interplay between steroid signalling and microRNAs: implications for hormone-dependent cancers

Area of Science:

• Oncology
• Molecular Biology
• Gene Regulation

Background:

• Hormones are critical in cancer development, with emerging evidence pointing to their role in post-translational gene regulation.
• MicroRNAs (miRs) are key regulators of gene expression, involved in development, physiology, and pathogenesis.
• Altered miR profiles are observed in various cancers, highlighting their potential as oncogenes or tumor suppressors.

Purpose of the Study:

• To review recent advances in understanding the regulation of microRNA (miR) biogenesis.
• To emphasize the role of hormone signaling pathways in modulating miR production.
• To explore the implications for cancer development and therapeutic strategies.

Main Methods:

• Review of current literature on miR biogenesis and regulation.
• Focus on the interaction between hormone signaling and the Microprocessor and Dicer complexes.
• Analysis of how these interactions are perturbed in cancer.

Main Results:

• Identification of novel components and regulators of the Microprocessor and Dicer complexes.
• Elucidation of hormone signaling pathways' influence on miR maturation.
• Demonstration of the complex interplay between hormone signaling, miR biogenesis, and cancer.

Conclusions:

• Hormone signaling pathways significantly regulate miR production through effects on miR biogenesis machinery.
• Dysregulation of hormone-mediated miR regulation is implicated in cancer pathogenesis.
• Targeting hormone-regulated miR pathways holds promise for novel cancer therapeutics and biomarkers.