title: CD1-restricted CD4+ T cells in major histocompatibility complex class II-deficient mice.
abstract: Rather unexpectedly, major histocompatibility complex class II-deficient mice have a significant population of peripheral CD4+ T lymphocytes. We have investigated these cells at the population and clonal levels. CD4+ T lymphocytes from class II-deficient animals are thymically derived, appear early in ontogeny, exhibit the phenotype of resting memory cells, are potentially functional by several criteria, and have a diverse T cell receptor repertoire. They do not include substantially elevated numbers of NK1.1+ cells. Hybridomas derived after polyclonal stimulation of the CD4+ lymphocytes from class II-deficient animals include a subset with an unusual reactivity pattern, responding to splenocytes from many mouse strains including the strain of origin. Most members of this subset recognize the major histocompatibility complex class Ib molecule CD1; their heterogeneous reactivities and T cell receptor usage further suggest the involvement of peptides and/or highly variable posttranslational modifications.
authors.affiliation: Institut de Génétique et de Biologie Moléculaire et Cellulaire, Université Louis Pasteur, Illkirch, CU de Strasbourg, France.
authors.forename: S
authors.initials: S
authors.lastname: Cardell
authors.forename: S
authors.initials: S
authors.lastname: Tangri
authors.forename: S
authors.initials: S
authors.lastname: Chan
authors.forename: M
authors.initials: M
authors.lastname: Kronenberg
authors.forename: C
authors.initials: C
authors.lastname: Benoist
authors.forename: D
authors.initials: D
authors.lastname: Mathis
mesh_terms: D000818:Animals; D018949:Antigens, CD1 / Q000276:immunology*; D015551:Autoimmunity; D001483:Base Sequence; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology*; D002999:Clone Cells; D014644:Genetic Variation; D015395:Histocompatibility Antigens Class I; D000949:Histocompatibility Antigens Class II / Q000235:genetics / Q000276:immunology*; D006825:Hybridomas; D008198:Lymph Nodes / Q000166:cytology / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D016688:Mice, Inbred NOD; D008969:Molecular Sequence Data; D016693:Receptors, Antigen, T-Cell, alpha-beta / Q000235:genetics; D013045:Species Specificity; D013154:Spleen / Q000166:cytology / Q000276:immunology; D013950:Thymus Gland / Q000166:cytology
chemical_list: D018949:Antigens, CD1; D015395:Histocompatibility Antigens Class I; D000949:Histocompatibility Antigens Class II; D016693:Receptors, Antigen, T-Cell, alpha-beta