antisense RNA

A complementary RNA sequence that binds to a naturally occurring (sense) mRNA molecule, thus blocking its translation. (See RNA.)

An RNA sequence that is complementary to all or part of a functional mRNA molecule, to which it binds, blocking its translation.

(AN-tee-sents …) Small pieces of RNA that can bind to specific molecules of RNA and block the cell's ability to use the RNA to make a protein. Antisense RNA may be used to block the production of proteins needed for cell growth. It is being studied in the treatment of several types of cancer. It is a type of gene expression inhibitor.