title: Expansion of natural killer cells but not T cells in human interleukin 2/interleukin 2 receptor (Tac) transgenic mice.
abstract: Transgenic mice expressing both human IL-2 and the L chain of IL-2-R constitutively had an unusual expansion of Thy-1+/CD3-4-8- large granular lymphocytes, which bore the elevated NK activity. Unexpectedly, the transgenic mice had neither T cell expansion nor autoreactive antibodies. The increase in number and activity of NK cells seems to be responsible for both the severe interstitial pneumonia and lymphocyte depletion in the spleen that we found in these transgenic mice. In addition, we found the selective loss of Purkinje cells in the cerebellum of the mice, which gave rise to their disturbed gait. All the transgenic mice died by 4 wk of age.
authors.affiliation: Department of Medical Chemistry, Kyoto University Faculty of Medicine, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Ishida
authors.forename: M
authors.initials: M
authors.lastname: Nishi
authors.forename: O
authors.initials: O
authors.lastname: Taguchi
authors.forename: K
authors.initials: K
authors.lastname: Inaba
authors.forename: M
authors.initials: M
authors.lastname: Hattori
authors.forename: N
authors.initials: N
authors.lastname: Minato
authors.forename: M
authors.initials: M
authors.lastname: Kawaichi
authors.forename: T
authors.initials: T
authors.lastname: Honjo
mesh_terms: D000818:Animals; D000945:Antigens, Differentiation, T-Lymphocyte; D000954:Antigens, Surface / Q000276:immunology; D017252:CD3 Complex; D015329:Gene Rearrangement, T-Lymphocyte; D007376:Interleukin-2 / Q000235:genetics / Q000276:immunology*; D007694:Killer Cells, Natural / Q000166:cytology / Q000276:immunology*; D007958:Leukocyte Count; D008213:Lymphocyte Activation; D051379:Mice; D008822:Mice, Transgenic; D011014:Pneumonia / Q000473:pathology; D011689:Purkinje Cells / Q000473:pathology; D011948:Receptors, Antigen, T-Cell / Q000032:analysis / Q000235:genetics; D015375:Receptors, Interleukin-2 / Q000235:genetics / Q000276:immunology*; D013154:Spleen / Q000166:cytology; D013601:T-Lymphocytes / Q000166:cytology / Q000276:immunology*; D018800:Thy-1 Antigens
chemical_list: D000945:Antigens, Differentiation, T-Lymphocyte; D000954:Antigens, Surface; D017252:CD3 Complex; D007376:Interleukin-2; D011948:Receptors, Antigen, T-Cell; D015375:Receptors, Interleukin-2; D018800:Thy-1 Antigens