NCI Drug Dictionary
The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.
- listeria monocytogenes-LLO-PSA ADXS31-142
A cancer vaccine containing a live-attenuated strain of the Gram-positive bacterium Listeria monocytogenes (Lm) encoding a fusion protein composed of the tumor-associated antigen (TAA) human prostate-specific antigen (PSA) fused to a fragment of the immunostimulant listeriolysin O (LLO) protein, with potential immunostimulatory and antineoplastic activities. Upon administration of the Lm-LLO-PSA vaccine ADXS31-142, the expressed LLO-PSA is processed by antigen presenting cells (APCs), presented to the immune system by both major histocompatibility complex (MHC) I and II molecules, and activates the immune system to exert both an innate and adaptive immune response involving the recruitment and activation of T-lymphocytes against PSA-expressing tumor cells as well as the inhibition of tumor-infiltrating T regulatory cells (T regs) and myeloid-derived suppressor cells (MDSCs). This eventually results in tumor cell lysis.
Synonym: Lm-LLO-PSA Code name: ADXS31-142