Synthesis and characterization of a C6 nucleoside analogue for the in vivo imaging of the gene expression of herpes simplex virus type-1 thymidine kinase (HSV1 TK).
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Johayem A, Raic-Malic S, Lazzati K, Schubiger PA, Scapozza L, Ametamey SM
Synthesis and characterization of a C6 nucleoside analogue for the in vivo imaging of the gene expression of herpes simplex virus type-1 thymidine kinase (HSV1 TK).
Chem Biodivers. 2006 Mar;3(3):274-83. doi: 10.1002/cbdv.200690030.
- PubMed ID
- 17193264 [ View in PubMed]
- Abstract
The synthesis and biological evaluation of '6-(1,3-dihydroxyisobutyl)thymine' (DHBT; 1), which corresponds to 6-[3-hydroxy-2-(hydroxymethyl)propyl]-5-methylpyrimidine-2,4(1H,3H)-dione, is reported. DHBT (1) was designed as a new substrate for herpes simplex virus type-1 thymidine kinase (HSV1 TK). The compound was found to be exclusively phosphorylated by HSV1 TK, and to exhibit good binding affinity (Ki = 35.3+/-1.3 microM). Cell-proliferation assays with HSV1-TK-transduced human osteosarcoma cells (143B-TK+-HSV1-WT) and with both human-thymidine-kinase-1-negative (143B-TK-) and non-transduced parental (MG-63) cells indicate that 1 is less cytotoxic than the standard drug Ganciclovir. Thus, DHBT (1) represents a promising precursor of a nontoxic reporter probe for the monitoring of HSV1 TK gene expression by means of positron-emission tomography (PET).
DrugBank Data that Cites this Article
- Drug Targets
Drug Target Kind Organism Pharmacological Action Actions 6-(Dihydroxy-Isobutyl)-Thymine Thymidine kinase Protein HHV-1 UnknownSubstrateDetails