Imaging of adenoviral-directed herpes simplex virus type 1 thymidine kinase reporter gene expression in mice with radiolabeled ganciclovir

S S Gambhir, J R Barrio, L Wu, M Iyer, M Namavari, N Satyamurthy, E Bauer, C Parrish, D C MacLaren, A R Borghei, L A Green, S Sharfstein (+4 others)
1998 Journal of Nuclear Medicine  
We are developing procedures to repeatedly and noninvasively image the expression of transplanted reporter genes in living animals and in patients, using PET. We have investigated the use of the Herpes Simplex Virus type 1 thymidine kinase gene (HSV1-tk) as a reporter gene and [8-14C]-ganciclovir as a reporter probe. HSV1-tk, when expressed, leads to phosphorylation of [8-14C]-ganciclovir. As a result, specific accumulation of phosphorylated [8-14C]-ganciclovir should occur almost exclusively in tissues expressing the HSV1-tk gene.
pmid:9829598 fatcat:xilpsvsnvzbp5jgwjsw2d4j2oi