Molecular pathways: microRNAs, cancer cells, and microenvironment

Area of Science:

• Molecular Oncology
• Cancer Biology
• RNA Biology

Background:

• Recent discoveries highlight the interplay between genetic mutations and microRNAs (miRNAs) in cancer.
• MicroRNAs (miRNAs) are increasingly recognized for their roles beyond cancer cells, originating from the tumor microenvironment.
• Extracellular miRNAs function as signaling molecules, transported via vesicles or as free molecules.

Purpose of the Study:

• To review the role of microRNAs (miRNAs) in cancer cell-microenvironment communication.
• To explore the translational applications of miRNAs in oncology.
• To discuss miRNAs as biomarkers for treatment response and therapeutic targets.

Main Methods:

• Literature review and synthesis of current research on miRNA-mediated communication in cancer.
• Analysis of studies investigating extracellular miRNA transport and uptake.
• Examination of clinical data and preclinical models related to miRNA therapeutics.

Main Results:

• MicroRNAs (miRNAs) facilitate intercellular communication, influencing cancer initiation, progression, and metastasis.
• Extracellular miRNAs, packaged in vesicles or as free molecules, act as systemic signaling agents.
• Evidence supports miRNAs' potential as predictive biomarkers for therapeutic efficacy.

Conclusions:

• MicroRNA-mediated communication is a critical aspect of the tumor microenvironment.
• MicroRNAs hold significant promise as predictive biomarkers and therapeutic targets in oncology.
• Targeting miRNAs offers a novel strategy for cancer treatment.