Rapid analysis of T-cell selection in vivo using T cell-receptor retrogenic mice.
Although T-cell receptor (TCR) transgenic as well as knockout and knockin mice have had a large impact on our understanding of T-cell development, signal transduction and function, the need to cross these mice delays experiments considerably. Here we provide a methodology for the rapid expression of TCRs in mice using 2A peptide-linked multicistronic retroviral vectors to transduce stem cells of any background before adoptive transfer into RAG-1(-/-) mice. For simplicity, we refer to these as retrogenic mice. We demonstrate that these retrogenic mice are comparable to transgenic mice expressing three commonly used TCRs (OT-I, OT-II [corrected] and AND). We also show that retrogenic mice expressing male antigen-specific TCRs (HY, MataHari and Marilyn) facilitated the analysis of positive and negative selection in female and male mice, respectively. We examined various tolerance mechanisms in epitope-coupled TCR retrogenic mice. This powerful resource could expedite the identification of proteins involved in T-cell development and function.
Department of Immunology, St. Jude Children's Research Hospital, 332 N. Lauderdale, Memphis, Tennessee 38105, USA.
Jeff
J
Holst
Kate M
KM
Vignali
Amanda R
AR
Burton
Dario A A
DA
Vignali
D000818:Animals; D005260:Female; D005434:Flow Cytometry; D018014:Gene Transfer Techniques; D005822:Genetic Vectors / Q000235:genetics; D008297:Male; D051379:Mice; D008822:Mice, Transgenic; D011948:Receptors, Antigen, T-Cell / Q000187:drug effects / Q000235:genetics* / Q000276:immunology; D012190:Retroviridae / Q000235:genetics; D012680:Sensitivity and Specificity; D013601:T-Lymphocytes / Q000276:immunology*; D014161:Transduction, Genetic / Q000379:methods*; D014764:Viral Proteins / Q000494:pharmacology
D011948:Receptors, Antigen, T-Cell; D014764:Viral Proteins; C057421:virus protein 2A