Journal: Frontiers in Immunology
Article Title: CXCR5 engineered human and murine Tregs for targeted suppression in secondary and tertiary lymphoid organs
doi: 10.3389/fimmu.2025.1513009
Figure Lengend Snippet: FVIII TRuCε CXCR5 Tregs display improved in vitro and in vivo persistence. (A) In vitro migration of FVIII CAR, FVIII CAR CXCR5, and FVIII TRuCε transduced Tregs through a transwell in response to either serum free media, CXCL12 or CXCL13 gradients. Number of migrated mScarlet + cells at the bottom of the transwell are quantified by flow cytometry following 6hrs of incubation. (B) Kinetics of in vivo migration of adoptively transferred FVIII TRuCε or FVIII TRuCε CXCR5 T conv cells to the spleen on days 1, 2, 4, and 7 following adoptive transfer. Mice received i.v. injections of recombinant FVIII on days 0, 3, and 6. Frequencies of mScarlet + cells per total CD4 + T cells are quantified by flow cytometry. (C) Number of mScarlet + FVIII TRuCε or FVIII TRuCε CXCR5 Tregs per 10 7 CD4 + T cells are quantified from spleens and (D) inguinal lymph nodes (ILN) on day 7 post adoptive transfer. Data represents mean±SEM, ****p<0.0001, ∗p < 0.05, ∗∗p < 0.01 using 2-way ANOVA with Tukey’s multiple comparisons analysis for (A) , 2-way ANOVA with Sidak’s multiple comparisons analysis for (B) , unpaired t test for (C, D) .
Article Snippet: Lower chambers contained 600 μL serum-free medium with 1μg/mL of either recombinant mouse CXCL12 or CXCL13 (PeproTech, Rocky Hill, NJ).
Techniques: In Vitro, In Vivo, Migration, Flow Cytometry, Incubation, Adoptive Transfer Assay, Recombinant