Nolatrexed dihydrochloride

Chemical properties

Tan Solid

The Uses of Nolatrexed dihydrochloride

Antifolate thymidylate synthase inhibitor. Antineoplastic.

What are the applications of Application

Nolatrexed Dihydrochloride is an inhibitor of thymidylate synthase

Biological Activity

thymidylate synthase (ts) is a crucial enzyme in the synthesis of 2'-deoxythymidine-5'-monophosphate, an essential precursor for dna biosynthesis. thus, this enzyme is a critical target in cancer chemotherapy. nolatrexed (ag-337) is a non-classical thymidylate synthase inhibitor.

in vitro

nolatrexed was designed using x-ray crystallographic data from the ts molecular modeling and folate binding site. it is a non-classical ts inhibitor in that it lacks a terminal glutamate side chain and is uncharged at physiological ph. nolatrexed does not require a specific transport mechanism to enter into cells and, once within the cell, is not a substrate for the enzyme folyl polyglutamate synthetase [1].

in vivo

when nolatrexed was administered to nude mice bearing bu25tk- tumor xenografts, a time-dependent increase in antitumor activity was observed [1].

References

[1] hughes an, rafi i, griffin mj, calvert ah, newell dr, calvete ja, johnston a, clendeninn n, boddy av. phase i studies with the nonclassical antifolate nolatrexed dihydrochloride (ag337, thymitaq) administered orally for 5 days. clin cancer res. 1999 jan;5(1):111-8.
[2] rafi i, boddy av, calvete ja, taylor ga, newell dr, bailey np, lind mj, green m, hines j, johnstone a, clendeninn n, calvert ah. preclinical and phase i clinical studies with the nonclassical antifolate thymidylate synthase inhibitor nolatrexed dihydrochloride given by prolonged administration in patients with solid tumors. j clin oncol. 1998 mar;16(3):1131-41.