title: In vitro viability of lymphoid cells from lines of mice genetically selected for high or low responsiveness to phytohemagglutinin.
abstract: The kinetics of viability of lymph node and spleen cells of mice genetically selected for "high" or "low" in vitro lymphocyte responsiveness to PHA were studied in PHA or PPD-stimulated short-term cultures. Lo/PHA cells were found to be less viable than Hi/PHA cells in unstimulated control cultures. PHA improved the viability of Lo/PHA cells while inducing proliferation of Hi/PHA cells with the appearance of more and larger lymphoblasts in the latter. PPD only improved the viability of spleen cell cultures, more so for the Hi/PHA line. The interline difference in thymidine uptake was smaller after PPD than after PHA stimulation. Modifications of culture conditions designed to decrease the interline difference in cell viability lessened but did not abolish the separation between the two lines for the PHA response as measured by thymidine uptake.
mesh_terms: D000818:Animals; D002460:Cell Line; D002470:Cell Survival; D005260:Female; D008198:Lymph Nodes / Q000166:cytology; D008213:Lymphocyte Activation; D008297:Male; D051379:Mice / Q000235:genetics*; D010835:Phytohemagglutinins / Q000494:pharmacology*; D013154:Spleen / Q000166:cytology; D013601:T-Lymphocytes / Q000166:cytology*
chemical_list: D010835:Phytohemagglutinins