NCIt synonyms : LacE7 Vaccine; L. casei-E7 BLS_ILB_E710c; L.casei-PgsA-E7;
NCIt definition : 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.;