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An orally available Lactobacillis casei (L. casei)-based vaccine expressing the human papillomavirus (HPV) type 16 isoform E7 protein linked to the poly-gamma-glutamate synthetase complex gene PgsA, with potential immunostimulating activity. Upon oral administration, the expressed HPV 16 E7 may stimulate the immune system to mount a mucosal cytotoxic T-lymphocyte (CTL) response against HPV 16 E7-expressing tumor cells. The poly-glutamic acid synthetase PgsA from Bacillus subtilis acts as an anchoring motif that facilitates the expression of the HPV antigen protein on the surface of the bacteria. HPV 16 E7, a cell surface glycoprotein and tumor associated antigen, is overexpressed in various viral-related cancers. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C117240\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C117240\' NCI Thesaurus)
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