Methods for thymidylate synthase pharmacodynamics: serial biopsy, free and total TS, FdUMP and dUMP, and H4PteGlu and CH2-H4PteGlu assays.

@article{Spears1988MethodsFT,
  title={Methods for thymidylate synthase pharmacodynamics: serial biopsy, free and total TS, FdUMP and dUMP, and H4PteGlu and CH2-H4PteGlu assays.},
  author={Collin P. Spears and Bengt G. Gustavsson},
  journal={Advances in experimental medicine and biology},
  year={1988},
  volume={244},
  pages={97-106}
}
This report details our methods for performance of the major parameters related to quantitation of TS inhibition resulting from fluoropyrimidine administration to patients, methods equally applicable to preclinical studies. Sampling of tumors before and after drug treatment is done by 4 mm disposable punch biopsy or forceps biopsy via subcutaneous tunneling. Homogenates are prepared using N2 or polytron-mincing. Cytosolic free TS is measured by either the tritium-release method for small… CONTINUE READING

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