NCIt definition : A replication-defective adenoviral-CMV vector that encodes a wild-type p53 gene. Contusugene
ladenovec induces tumor cells that have been transfected with the vector to produce
wild-type p53, a tumor suppressor gene that is deleted or mutated in a significant
number of cancers. In transfected tumor cells, the wild-type p-53 gene product exerts
an antitumor effect by blocking cell cycle progression at the G1/S regulation point,
activating DNA repair proteins in the presence of DNA damage, and initiating apoptosis
when DNA damage is irreparable. (NCI04);