Journal: bioRxiv
Article Title: TCF1 lo CD8 T cells proliferate and persist autonomously in tumors
doi: 10.64898/2026.01.17.700120
Figure Lengend Snippet: A. Experimental scheme: naive TCR TAG (Thy1.1) were adoptively transferred into tamoxifen-treated AST;Cre-ER T2 (Thy1.2) mice. TCR TAG were re-isolated from spleens and livers for flow cytometric analysis at 2.5, 5, 10, 14, 28, 35, and 70+ days post-transfer. B. Histograms and summary plots of KI67 expression of TCR TAG in spleens and livers from tumor-bearing mice shown in comparison to N, with % KI67 + gate set to exclude N. Flow plots for each time point were concatenated from all biological replicates; each symbol represents an individual mouse. *, P <0.007 determined by one-sample Student’s t -test with Bonferroni correction. C. Left, representative dot plots of KI67 expression and DNA content staining in TCR TAG in spleens and livers of AST;Cre-ER T2 mice, with inset numbers indicating the percentage of cells in G 0 , G 1 , and S-G 2 M phases of cell cycle. Middle, summary plots of the percentage of TCR TAG in G 0 , G 1 , and S-G 2 M, shown as mean ± SEM. Right, summary plots of the percentage of TCR TAG in S-G 2 M. Each symbol represents an individual mouse. *, P <0.007 determined by one-sample Student’s t -test with Bonferroni correction. D. Histograms and summary plots of TCF1 expression in spleens and livers, with TCF1 + gate shown. Flow plots for each time point were concatenated from all biological replicates; each symbol represents an individual mouse. *, P <0.007 determined by one-sample Student’s t -test with Bonferroni correction. E. Longitudinal analysis of the absolute cell numbers of TCR TAG cells (blue) in the spleens and livers of tumor-bearing mice and the % TCF1 + TCR TAG (yellow), shown as mean ± SEM. F. Summary plots of the % TCF1 + (filled bars) and TCF1 − (open bars) TCR TAG within the S-G 2 /M + subset, shown as mean ± SEM. Data is representative of two independent experiments with n = 3 mice per group
Article Snippet: TCR TAG transgenic mice (B6.Cg-Tg(TcraY1,TcrbY1)416Tev/J, RRID:IMSR_JAX:005236) , Cre-ER T2 mice (B6.129-Gt(ROSA)26Sortm1(cre/ERT2)Tyj/J, RRID:IMSR_JAX:008463), Rosa26-Cas9 mice (Gt(ROSA)26Sortm1.1(CAG-cas9*,-EGFP)Fezh/J, RRID:IMSR_JAX:026179), B6 Thy1.1 mice (B6.PL-Thy1a/CyJ, RRID:IMSR_JAX:000406), and B6 mice (C57BL/6J, RRID:IMSR_JAX:000664) were purchased from the Jackson Laboratory.
Techniques: Isolation, Expressing, Comparison, Staining