First Author | Pérarnau B | Year | 1999 |
Journal | Eur J Immunol | Volume | 29 |
Issue | 4 | Pages | 1243-52 |
PubMed ID | 10229092 | Mgi Jnum | J:54709 |
Mgi Id | MGI:1335731 | Doi | 10.1002/(SICI)1521-4141(199904)29:04<1243::AID-IMMU1243>3.0.CO;2-A |
Citation | Perarnau B, et al. (1999) Single H2Kb, H2Db and double H2KbDb knockout mice: peripheral CD8+ T cell repertoire and anti-lymphocytic choriomeningitis virus cytolytic responses. Eur J Immunol 29(4):1243-52 |
abstractText | Single H2Kb, H2Db and double H2KbDb homozygous knockout (KO) mice were generated and their peripheral CD8+ T cell repertoires compared to that of C57BL/6 (B6) mice. Limited (10-20%, H2Db), substantial (30-50%, H2Kb) and profound (90%, H2KbDb) reduction of peripheral CD8+ T cells was observed in KO mice, without Vbeta diversity alteration. Classical class Ia molecules therefore ensure most but not all of the peripheral CD8+ T cell repertoire education. As expected, H2Kb but also H2Db KO mice developed choriomeningitis following intracranial infection by lymphocytic choriomeningitis virus with the same kinetics, lethality and CD8+ cell implication as wild-type B6 mice. By contrast, H2KbDb (class Ia-Ib+) KO mice survived. Choriomeningitis of H2Db KO mice was linked to the development of a subdominant (in normal B6 mice) H2Kb-restricted cytotoxic T lymphocyte response. Mice expressing a restricted set of histocompatibility class I molecules should represent useful tools to evaluate the immunological potentials of individual MHC class I molecules. |