title: Response of baboon peripheral blood lymphocytes to phytohemagglutinin: time-course and dose-response relationships.
abstract: Optimal conditions for studying phytohemagglutinin(PHA)-induced transformation of baboon peripheral blood lymphocytes were determined. Maximal stimulation, as determined by uptake and incorporation of tritiated thymidine (total cell and trichloroacetic-acid-precipitable radioactivity), occurred at a PHA level of 12.5 microgram in a culture volume of 0.25 ml containing 2 x 10(5) lymphocytes. Optimal stimulation occurred after a total incubation period of 114 h, the last 18 h of which was in the presence of 1muCi of the labeled DNA precursor per culture. While there was considerable variation in the extent of responsiveness of lymphocytes from individual animals, the shape of the dose-response and time-course curves for most mitogen concentrations was generally similar.
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D005260:Female; D000882:Haplorhini; D037102:Lectins / Q000494:pharmacology*; D008213:Lymphocyte Activation / Q000187:drug effects*; D008297:Male; D008722:Methods; D010215:Papio; D013997:Time Factors
chemical_list: D037102:Lectins