title: Peritoneal exudate T lymphocytes with specificity to sheep red blood cells. I. Production and characterization as to function and phenotype.
abstract: T lymphocytes which mediate DTH reactions to sheep red blood cells (SRBC) in mice enter casein-induced peritoneal exudates from which they can be recovered and assayed in a passive transfer system. Peritoneal exudates need not contain specific antigen for inducement of T-cell immigration. The amount (or biological activity) of DTH-transferring peritoneal exudate lymphocytes is enhanced by the previous use of immune modulating agents, such as cyclophosphamide (Cy) (200 mg/kg 2 days prior to sensitization), or BCG (10(7) live organisms i.v. 14 days prior to sensitization). SRBC-specific peritoneal exudate lymphocytes phenotypically are Thy 1+ and Ly 1+, 2-. In vivo, peritoneal exudate T cells from Cymodulated donors persist in circulation for a short period only and are subject to the suppressive mechanisms acting in anergic mice. Cells from BCG-plus-Cy-modulated donors, on the other hand, persist in circulation for a longer period and appear to be less susceptible to immune suppression.
mesh_terms: D000818:Animals; D001202:Ascitic Fluid / Q000276:immunology*; D001500:BCG Vaccine; D003520:Cyclophosphamide / Q000494:pharmacology; D004912:Erythrocytes / Q000276:immunology; D005122:Exudates and Transudates / Q000276:immunology*; D005260:Female; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007116:Immunization, Passive; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D009163:Mycobacterium bovis / Q000276:immunology; D010641:Phenotype; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D001500:BCG Vaccine; D003520:Cyclophosphamide