MicroRNA (miRNA)

MicroRNA (miRNA) are tiny molecules found in our cells that play a crucial role in regulating gene expression. They are about 20-25 nucleotides long and work by binding to messenger RNA (mRNA), which carries genetic instructions from DNA. By attaching to mRNA, miRNAs can prevent the production of proteins, essentially turning off certain genes. This process helps control various biological functions, including development, cell growth, and response to stress. Dysregulation of miRNAs can contribute to diseases, including cancer, making them important targets for research and potential therapies.