miRNAs in the diagnosis and therapy of cardiac and mediastinal tumors: a new dawn for cardio-oncology?

Dysfunctions in miRNA production have been recently investigated as predictors of neoplasms and their therapeutic strategies. In this review, we summarize the available knowledge on miRNAs and cardiac tumors (such as myxoma) and mediastinal tumors (such as thymoma) and propose new avenues for future research. MiRNAs are crucial for cardiac development through the expression of cardiac transcription factors (miR-335-5p), hinder the cell cycle by modulating the activity of transcription factors (miR-126-3p, miR-320a), modulate the production of inflammatory factors such as interleukins (miR-217), and interfere with cell proliferation or apoptosis (miR-218, miR-634 and miR-122). Current and future research on miRNAs is essential, as a deep understanding could lead to a revolution in the field of diagnostics and prevention of neoplastic diseases.