title: [Humoral mechanisms of in vitro inhibition of mouse lymphocyte immunoreactivity by mastocytoma P815 cells].
abstract: The inhibitory capacity of mastocytoma cell line P815 and its cultural supernatant (CS) was studied in the reaction of blast transformation (RBT) and mixed lymphocyte culture (MLC). An addition of both P815 cells and CS resulted in dose-dependent inhibition of lymphocyte proliferation in RBT and MLC. The treatment of DBA/2 spleen cells with CS for 2 h at 37 degrees C resulted in a significant decrease in proliferative activity and induction of supressor cells.
authors.forename: A E
authors.initials: AE
authors.lastname: Medvedev
mesh_terms: D000818:Animals; D002455:Cell Division; D002460:Cell Line; D008213:Lymphocyte Activation; D007959:Lymphocyte Culture Test, Mixed; D008214:Lymphocytes / Q000276:immunology*; D008297:Male; D012515:Mast-Cell Sarcoma / Q000276:immunology*; D051379:Mice; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D012513:Sarcoma, Experimental / Q000276:immunology*; D013154:Spleen / Q000166:cytology / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
vernacular_title: Gumoral'nyĭ mekhanizm ingibirovaniia immunoreaktivnosti limfotsitov mysheĭ in vitro kletkami mastotsitomy P815.