This project focuses on the construction of an adenoviral vector to induce gene expression of enhanced green fluorescent protein or herpes simplex virus thymidine kinase (HSV-TK) upon irradiation of tumour cells. Following irradiation with clinically relevant doses of 2-6 Gy a significant induction of gene expression could be detected; furthermore, an enhanced cytotoxic effect could be shown after concomitant administration of HSV-TK and ganciclovir together with irradiation, compared to irradiation alone. The application of the employed promoter/ enhancer region of mEgr-1 is limited by a basal gene expression rate occurring without irradiation. Reduction of this basal promoter activity was achieved by flanking the expression cassette with polyadenylation sites deriving from bovine growth hormone.
«This project focuses on the construction of an adenoviral vector to induce gene expression of enhanced green fluorescent protein or herpes simplex virus thymidine kinase (HSV-TK) upon irradiation of tumour cells. Following irradiation with clinically relevant doses of 2-6 Gy a significant induction of gene expression could be detected; furthermore, an enhanced cytotoxic effect could be shown after concomitant administration of HSV-TK and ganciclovir together with irradiation, compared to irradi...
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