Journal: Signal Transduction and Targeted Therapy
Article Title: Eosinophils promote CD8 + T cell memory generation to potentiate anti-bacterial immunity
doi: 10.1038/s41392-024-01752-0
Figure Lengend Snippet: IL-4 inhibits the JNK/caspase-3-mediated CD8 + T cell apoptosis in response to L.m . infection. a – c Representative FACS image and statistical analysis of TLR4-MD2 + ( a ), Annexin-V + ( b ) and PD-1 + ( c ) CD8 + T cells with or without LLO treatment for 4–6 h. d – f Representative FACS image and statistical analysis of Annexin-V + ( d ), PD-1 + ( e ) and cytoplasmic p-JNK + ( f ) of CD8 + T cells with or without JNK inhibitor IQ-1S treatment after L.m . infection. g – i Representative FACS image and statistical analysis of Annexin-V + ( g ), PD-1 + ( h ) and cytoplasmic p-JNK + ( i ) of CD8 + T cells with or without exogenous IL-4 treatment after L.m . infection. j Representative FACS image and quantification of MFI of IL-4R expression in CD8 + T cells with or without treatment of exogenous IL-4. k , l Proportions of Annexin-V + and PD-1 + CD8 + T cells with or without Z-VAD-FMK ( k ) and Z-DEVD-FMK ( l ) treatment after L.m . infection as measured by flow cytometry. m Proportions of cleaved Caspase-3 + CD8 + T cells with or without IL-4 treatment after L.m . infection as measured by flow cytometry. n CFSE analysis of proliferative CD8 + T cells after anti-CD3/CD28 stimulation with IL-4 treatment or not. Data are mean ± SD of one representative experiment. Similar results were seen in two or three independent experiments. Unpaired Student’s t tests. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001
Article Snippet: Cell Activation Cocktail (with Brefeldin A), Fixation Buffer, APC-Cy7 anti-mouse CD45 (30-F11), PE-Cy7 anti-mouse CD45.1 (A20), PE-Cy7/ Percp-cy5.5 anti-mouse CD4 (RM4-5), APC anti-mouse IFN-γ (XMG1.2), APC anti-mouse PD-1 (29F.1A12), APC/BV605 anti-mouse KLRG1 (2F1), APC anti-mouse CX3CR1 (SA011F11), APC/AF488 anti-mouse CD11b (M1/70), Percp-cy5.5/BV421 anti-mouse CD8a (53-6.7), BV421 anti-mouse Siglec-F (S17007L), purified anti-mouse IL-4 antibody (11B11), PE-Cy7 anti-mouse TLR4-MD2 (MTS510), PE anti-mouse IL-4 (11B11), rmCXCL3, rmCXCL5 were purchased from Biolegend.
Techniques: Infection, Expressing, Flow Cytometry