Human coxsackie adenovirus receptor (CAR) expression in transgenic mouse prostate tumors enhances adenoviral delivery of genes.
BACKGROUND: Transgenic mice that recapitulate the progression of human diseases are potentially useful models for testing the effectiveness of new therapeutic strategies. Their use in pre-clinical testing of adenovirally-delivered gene therapies, however, is limited because of restricted cell surface expression of Coxsackie adenovirus receptor (CAR) in mice. METHODS: To develop a more suitable transgenic mouse model for testing adenoviral-based gene therapies for prostate cancer, we generated prostate specific antigen/human CAR ( PSA/hCAR) transgenic mice in which a chimeric enhancer/promoter sequence of the human PSA gene drives expression of a functional hCAR coding sequence. RESULTS: Expression of an adenovirally-delivered luciferase reporter gene in prostate tumor cells in bigenic mice ( PSA/hCAR + TRAMP) was enhanced compared to the level in tumor cells lacking the PSA/hCAR transgene. CONCLUSIONS: Breeding PSA/hCAR mice to existing transgenic mouse models for prostate cancer (e.g., TRAMP) results in improved mouse models for testing adenovirally-delivered therapeutic genes.[1]References
- Human coxsackie adenovirus receptor (CAR) expression in transgenic mouse prostate tumors enhances adenoviral delivery of genes. Bao, Y., Peng, W., Verbitsky, A., Chen, J., Wu, L., Rauen, K.A., Sawicki, J.A. Prostate (2005) [Pubmed]
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