NCIt definition : A phosphorothioate oligonucleotide harboring nucleotide sequences complementary to
tumor suppressor p53 mRNA. Cenersen hybridizes with p53 mRNA molecules, and induces
Rnase H dependent hydrolysis of p53 transcripts in the double stranded section of
the hybrids, thereby resulting in loss of p53 production. Loss of p53 activity leads
to sensitization of cancer cells to other therapeutics.;