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The Expanding Role of RNA Interference in Therapeutics
RNA interference (RNAi) is a powerful biological mechanism that allows cells to regulate gene expression. This natural process has inspired a class of therapeutics that silence harmful genes responsible for disease. Small interfering RNA (siRNA) and microRNA (miRNA) modulators form the backbone of RNAi-based medicine, offering highly targeted treatment options.
RNAi therapeutics work by binding to specific messenger RNA molecules that encode disease-causing proteins. Once attached, they trigger degradation of the mRNA, preventing the formation of the harmful protein. This level of precision provides a huge advantage over many traditional drugs, which often affect multiple pathways and may cause unwanted side effects.
Diseases characterized by overactive or misregulated genes—such as metabolic disorders, viral infections, and certain cancers—are prime candidates for RNAi treatment. For example, siRNA therapies have shown promise in reducing cholesterol levels by silencing genes involved in lipid production. In infectious disease settings, RNAi can block viral replication by…