First Author | Bosco N | Year | 2006 |
Journal | Mol Immunol | Volume | 43 |
Issue | 3 | Pages | 246-54 |
PubMed ID | 16199261 | Mgi Jnum | J:104864 |
Mgi Id | MGI:3612929 | Doi | 10.1016/j.molimm.2005.02.002 |
Citation | Bosco N, et al. (2006) Role of the T cell receptor alpha chain in the development and phenotype of naturally arising CD4+CD25+ T cells. Mol Immunol 43(3):246-54 |
abstractText | The T cell receptor alpha chain repertoire and the possible influence of the alpha chain on the development and phenotype of naturally arising mouse CD4+CD25+ T cells have not been extensively analysed. We used all available Valpha-specific monoclonal antibodies and a sensitive multiplex genomic DNA PCR assay to study the Valpha repertoire of CD4+CD25+ T cells in normal mice. To address whether CD4+CD25+ T cells express two TCR alpha chains, we have carried out four-colour flow cytometry using combinations of the available anti-Valpha reagents in mice where one allele of the TCRA locus had been inactivated. Results indicate that the Valpha repertoire of CD4+CD25+ T cells is as diverse as their CD25- partners. In addition, CD4+CD25+ T cells develop normally in Tcralpha+/- mice and we show for the first time that despite expressing only one TCRalpha chain, they retain their characteristic CD4(low), CD3(low), TCRbeta(low), CD5(high), CD45RB(low) and cytoplasmic CD152(high) phenotype. |