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A bivalent human papillomavirus (HPV) therapeutic vaccine containing recombinant inactivated adenylate cyclase (CyaA) from Bordetella pertussis carrying a sequence encoding the E7 antigen of both HPV16 and 18, with potential immunostimulatory and antiviral properties. Upon administration of bivalent HPV16/18 therapeutic cervical cancer vaccine, the expressed proteins may activate cell-mediated immunity and induce both cytotoxic CD8+ T cells and CD4+ helper T cells against the target antigens HPV16-E7 and HPV18-E7, which leads to HPV viral clearance. Adenylate cyclase is a virulence factor of Bordetella pertussis. Its ability to bind to CD11b-expressing dendritic cells and deliver antigens directly to the cytosol allows the activation and induction of T-cell immunity. CyaA may also induce a B cell response. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C112207\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C112207\' NCI Thesaurus)
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