title: Enhanced T-helper cell function following CD4 modulation.
abstract: T cells made CD4- by ganglioside (GM1) treatment were cultured in antisense oligodeoxynucleotides complementary to mRNA for CD4. Antisense treatments decreased CD4 levels by 45% but did not prolong the total CD4 modulation by GM1 pretreatment. Northern blot analysis demonstrated that CD4 message production did not change after ganglioside modulation and consequently that it was different from antisense CD4 modulation. However, modulation of CD4 from the cell surface by either GM1 or antisense resulted in greater proliferation and enhanced DTH when challenged with recall antigen. These results demonstrate that selective decrease of CD4 increased antigen-specific T cell responses.
authors.affiliation: Neuroimmunology Research Laboratory, Veterans Administration Medical Center, Portland, Oregon 97201.
authors.forename: W J
authors.initials: WJ
authors.lastname: Morrison
authors.forename: H
authors.initials: H
authors.lastname: Offner
authors.forename: A A
authors.initials: AA
authors.lastname: Vandenbark
mesh_terms: D000818:Animals; D000941:Antigens; D001483:Base Sequence; D015704:CD4 Antigens / Q000235:genetics / Q000378:metabolism*; D002460:Cell Line; D005677:G(M1) Ganglioside / Q000494:pharmacology; D006968:Hypersensitivity, Delayed; D016219:Immunotherapy, Adoptive; D066298:In Vitro Techniques; D008213:Lymphocyte Activation; D051379:Mice; D008969:Molecular Sequence Data; D016376:Oligonucleotides, Antisense / Q000235:genetics; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D051381:Rats; D011917:Rats, Inbred Lew; D006377:T-Lymphocytes, Helper-Inducer / Q000187:drug effects / Q000276:immunology*; D014373:Tuberculin / Q000276:immunology
chemical_list: D000941:Antigens; D015704:CD4 Antigens; D016376:Oligonucleotides, Antisense; D012333:RNA, Messenger; D014373:Tuberculin; D005677:G(M1) Ganglioside