NCI Drug Dictionary

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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.

DLK1/ EPHA2/HBB/NRP1/RGS5/TEM1 peptide-pulsed alpha-type-1 polarized dendritic cell vaccine
A cell-based cancer vaccine composed of mature polarized dendritic cells (alphaDC1) pulsed with six human leukocyte antigen (HLA)-A2-presented tumor blood vessel antigen (TBVA)-derived peptides, with potential immunostimulatory and antineoplastic activities. Dendritic cells (DCs) were treated with a “type-1 polarizing cytokine cocktail”, including interleukin-1beta, tumor necrosis factor alpha (TNF-a), interferon-alpha (IFN-a), IFN-gamma and polyinosinic:polycytidylic acid (pI:C) to produce mature alpha type-1 polarized DCs (alphaDC1) that are capable of producing high levels of interleukin-12p70 (IL-12p70). The alphaDC1 are subsequently pulsed with TBVA-derived peptides, including delta-like homologue 1 (DLK1) 310-318, EPH receptor A2 (EPHA2) 883-891, beta-globin (HBB) 31-39, neuropilin-1 (NRP1) 433-441, regulator of G-protein signaling 5 (RGS5) 5-13 and tumor endothelial marker 1 (TEM1) 691-700. Upon administration, these DCs are able to induce a potent cytotoxic T-lymphocyte (CTL) response against the TBVAs expressed on tumor-associated stromal cells, which results in stromal cell lysis and inhibition of angiogenesis. Disrupting the surrounding tumor vasculature inhibits tumor cell growth and survival. alphaDC1 are able to induce a potent tumor antigen-specific CTL response due to their high co-stimulatory activity and the secretion of anti-cancer cytokines, such as IL-12p70. Check for active clinical trials using this agent. (NCI Thesaurus)

Synonym:tumor blood vessel antigen peptide-pulsed alpha-type-1 polarized dendritic cell vaccine
αDC1-TBVA vaccine