Circulating microRNAs

Circulating microRNAs are tiny molecules found in blood and other body fluids that contain genetic information regulating how cells function. Released by cells into the bloodstream, they help communicate signals and maintain bodily balance. Because they reflect changes in the body, especially in diseases like cancer or inflammation, scientists study these microRNAs as biomarkers—biological indicators useful for diagnosis, prognosis, and monitoring of health conditions. Their stability in circulation and ability to provide real-time insights make circulating microRNAs valuable tools for non-invasive medical testing.