Journal: Clinical & Translational Immunology
Article Title: Improving thymus implantation for congenital athymia with interleukin‐7
doi: 10.1002/cti2.1475
Figure Lengend Snippet: IL‐7 enhanced T cell development in peripheral blood by increasing the population of naïve T cells. (a) Experimental scheme treating Foxn1 nu athymic mice with cultured thymus transplants and IL‐7. Foxn1 nu athymic mice that received a cultured, MHC‐mismatched thymus (intramuscularly) were implanted with a mini‐osmotic pump containing PBS (Veh) or 5 μg of murine IL‐7 in PBS. (b, c) To compare the homeostatic proliferated T cell population, peripheral leukocytes were stained using IL‐7R antibody and the signal was analysed using FACS ( N = 4 mice/group from 1 experiment; two‐way repeated measures ANOVA; ** P < 0.01). (d) Peripheral blood collected from control or IL‐7‐treated mice transplanted with thymus was stained using anti‐CD45.1, CD45.2, CD3, CD4, CD8 CD44 and CD62L antibodies and analysed by FACS. T cell subpopulations were analysed and compared between the control and IL‐7‐treated groups based on CD44 and CD62L expression. (e–g) Data are presented as CD44 lo CD62L hi naïve populations per total cells (e), percentage of T cells per leukocytes (f) and absolute number of T cells in 100 μL of blood (g) on weeks 2, 4, 6, 8 and 12 after surgery ( N = 6 mice/group from 2 experiments; two‐way repeated measures ANOVA; * P < 0.05, ** P < 0.01 post‐hoc *** P < 0.001). (h) To compare TCR repertoire, the number of unique TCR clones was compared by RNA sequencing ( N = 3 mice/group from 1 experiment; two‐way repeated measures ANOVA; * P < 0.05).
Article Snippet: Antibodies for the T cell immunophenotyping panel were purchased from BD Biosciences: PerCP‐Cy5.5 CD45.1 (Clone: A20), PE‐Cy7 CD44 (Clone: IM7), APC CD3e (Clone: 145‐2C11), APC‐H7 CD4 (Clone: GK1.5), V450 CD45.2 (Clone: 104), V500 CD8 (Clone: 53–6.7) and BV605 CD62L (Clone: MEL‐14), AF488 CD45R/B220 (Clone: RA3‐6B2), PE CD45b (Clone: DX5), Alexa Fluor‐700 CD11c (Clone: N418), APC‐Cy7 CD11b (Clone: M1/70) and IL‐7R (Clone: SB/199).
Techniques: Cell Culture, Staining, Expressing, Clone Assay, RNA Sequencing Assay