title: The use of [125I]deoxyuridine for semi-microevaluation of human lymphocyte response to phytohemagglutinin in vitro.
abstract: [125I]5-iodo-2'-deoxyuridine ([125I]UdR) was compared with [6-3H]thymidine ([3H]TdR) in a semi-micromethod used to evaluate the response of human lymphocytes to phytohemagglutinin (PHA) in vitro. 5-Fluoro-2'-dexoyuridine (FUdR) was added to [125I]UdR in order to increase its incorporation, by preventing endogenous thymidine synthesis. The relationship between PHA concentration and the isotope uptake by lymphocytes was studied. Similar dose-response curves were found for the two precursors, with a peak at 15 microgram/ml of PHA. Nevertheless the recovery of the labeled compounds was higher when [125I]UdR together with FUdR was used.
mesh_terms: D000328:Adult; D003857:Deoxyuridine / Q000378:metabolism*; D005260:Female; D006801:Humans; D037102:Lectins / Q000494:pharmacology*; D008213:Lymphocyte Activation; D008297:Male; D013936:Thymidine / Q000378:metabolism
chemical_list: D037102:Lectins; D013936:Thymidine; D003857:Deoxyuridine