title: Interaction between Entamoeba histolytica and the immune system. I. Mitogenicity of Entamoeba histolytica extracts for human peripheral T lymphocytes.
abstract: The effect of Entamoeba histolytica extracts (E.h.e.) on proliferation in vitro of human peripheral blood lymphocytes, cord blood lymphocytes, and lymphocytes enriched for T cells or non-T cells was investigated. As tested by 3H-thymidine uptake and by morphologic criteria, E.h.e. stimulate T lymphocyte proliferation. Non-T lymphocytes do not respond to E.h.e. The response of lymphocytes to E.h.e. differed from their response to Con A in several respects, indicating either that E.h.e. and Con A act on different subsets of T cells or that E.h.e. act by different mechanism on the Con A reactive cells.
mesh_terms: D004306:Dose-Response Relationship, Immunologic; D004748:Entamoeba histolytica / Q000276:immunology*; D005312:Fetal Blood / Q000276:immunology; D006801:Humans; D007136:Immunoglobulins / Q000096:biosynthesis; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology; D008934:Mitogens / Q000494:pharmacology*; D013601:T-Lymphocytes / Q000276:immunology*; D013997:Time Factors
chemical_list: D007136:Immunoglobulins; D008934:Mitogens