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Updated: Aug 11, 2026
Retroviral Transduction of Bone Marrow Progenitor Cells to Generate T-cell Receptor Retrogenic Mice
Published on: July 11, 2016
Rapid analysis of T-cell selection in vivo using T cell-receptor retrogenic mice
Jeff Holst1, Kate M Vignali, Amanda R Burton
1Department of Immunology, St. Jude Children's Research Hospital, 332 N. Lauderdale, Memphis, Tennessee 38105, USA.
Abstract:
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.
Insights
Researchers developed a faster method to study T-cell development using retrogenic mice. This technique rapidly expresses T-cell receptors (TCRs), accelerating research into T-cell function and related proteins.
Area of Science:
- Immunology
- Molecular Biology
- Genetics
Background:
- Traditional transgenic, knockout, and knockin mouse models are crucial for studying T-cell development and function.
- However, generating these genetically modified mice often involves lengthy breeding processes, delaying research.
- A need exists for more rapid methods to introduce specific T-cell receptors (TCRs) into mice.
Purpose of the Study:
- To develop and validate a novel methodology for the rapid, stem cell-based expression of T-cell receptors (TCRs) in mice.
- To establish a resource, termed 'retrogenic mice,' that bypasses the time constraints of traditional genetic engineering.
- To demonstrate the utility of retrogenic mice for studying T-cell selection and tolerance mechanisms.
Main Methods:
- Utilized 2A peptide-linked multicistronic retroviral vectors to express TCRs in stem cells.
- Transduced stem cells from various backgrounds and performed adoptive transfer into RAG-1(-/-) mice.
- Generated retrogenic mice expressing well-characterized TCRs (OT-I, OT-II, AND) and male antigen-specific TCRs (HY, MataHari, Marilyn).
Main Results:
- Retrogenic mice demonstrated comparable T-cell development and function to conventional transgenic mice.
- Successfully generated retrogenic mice expressing specific TCRs, including those for male antigens.
- Enabled the analysis of positive and negative selection processes in both female and male retrogenic mice.
- Facilitated the examination of tolerance mechanisms using epitope-coupled TCR retrogenic mice.
Conclusions:
- The retrogenic mouse model provides a powerful and expedited platform for immunological research.
- This methodology significantly reduces the time required to generate mice with specific TCRs.
- Retrogenic mice are a valuable resource for dissecting T-cell development, selection, tolerance, and identifying novel proteins involved in T-cell function.
