Journal
BIOCONJUGATE CHEMISTRY
Volume 21, Issue 12, Pages 2213-2221Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bc100195s
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Funding
- Ministero dell'Universita e della Ricerca
- Istituto Nazionale di Fisica Nucleare (INFN)
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Potential boron neutron capture therapy (BNCT) agents have been designed on the basis of the evidence about translocator protein (TSPO) overexpression on the outer mitochondrial membrane of tumor cells. The structure of the first TSPO ligand bearing a carborane cage (compound 2d) has been modified in order to find a suitable candidate for in vivo studies. The designed compounds were synthesized and evaluated for their potential interaction with TSPO and tumor cells, hi vitro biological evaluation showed in the case of fluoromethyl derivative 4b a nanomolar TSPO affinity very similar to that of 2d. a significantly lower cytotoxicity, and a slightly superior performance as boron carrier toward breast cancer cells. Moreover, compound 4b could be used as a F-19 magnetic resonance imaging (MRI) agent as well as labeled with C-11 or F-18 to obtain positron emission tomography (PET) radiotracers in order to apply the see and treat strategy in BNCT.
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