How microRNA works?

MicroRNAs (miRNAs) are small, non-coding RNA molecules that regulate gene expression by binding to complementary sequences on target messenger RNAs (mRNAs). This binding typically results in the degradation of the mRNA or inhibition of its translation into proteins. By modulating the levels of specific proteins, miRNAs play crucial roles in various biological processes, including development, cell differentiation, and responses to stress. Their dysregulation is often linked to various diseases, including cancer.