The AAV vector plasmids pXL3937-CMV-mSeAP, pGG2-CMV-Luc and pGG2-CMV-LacZ contain, respectively, the cDNA of a murine secreted alkaline phosphatase (mSeAP)[21], the luciferase gene and the cytosolic LacZ bacterial gene subcloned into an AAV plasmid backbone which has the ITRs of AAV2
The AAV vector plasmids pXL3937-CMV-mSeAP, pGG2-CMV-Luc and pGG2-CMV-LacZ contain, respectively, the cDNA of a murine secreted alkaline phosphatase (mSeAP)[21], the luciferase gene and the cytosolic LacZ bacterial gene subcloned into an AAV plasmid backbone which has the ITRs of AAV2. with AAV2 encoding a murine secreted alkaline phosphatase (mSeAP). The transgene manifestation, vector biodistribution and cells transduction were analyzed by quantification of the mSeAP protein and real time PCR. The injection of polyinosinic acid and polylysine resulted in an increase of plasmatic mSeAP of 2- and 12-fold, respectively. Interestingly, polyinosinic acid pre-injection significantly reduced the neutralizing antibody titer raised against AAV2. == Conclusions == Our results show the pre-injection of polymers can improve the overall transduction effectiveness of systemically given AAV2 and reduce the humoral response against the capsid proteins.…