Normal priming and expansion of functional T cells in the spleen during concurrent co‐infection Normal priming and expansion of functional T cells in the.

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Normal priming and expansion of functional T cells in the spleen during concurrent co‐infection Normal priming and expansion of functional T cells in the spleen during concurrent co‐infection A–CTotal splenocytes, total and LFA‐1+CD4+ T cells, and total and LFA‐1+CD8+ T cells in the spleen of naïve (n = 8), CHIKV (n = 7), PbA (n = 6), and PbA + CHIKV (n = 6) groups on 6 dpi. (A) Representative images of spleens isolated on 6 dpi showing spleen enlargement during concurrent co‐infection are shown. Total splenocytes were determined by live cell count with Trypan blue staining. Data shown are representative of two independent experiments. All data were analyzed by one‐way ANOVA with Tukey's post‐test. For total splenocytes (A): naïve versus PbA; *mean diff = 5.5 × 107, naïve versus PbA + CHIKV; ***mean diff = −1.142 × 108, CHIKV versus PbA; **mean diff = 6.993 × 107, CHIKV versus PbA + CHIKV; ***mean diff = −9.924 × 107, PbA versus PbA + CHIKV; ***mean diff = −1.692 × 108. For total CD4+ T cells (B, left): naïve versus PbA + CHIKV; ***mean diff = −1.866 × 107, CHIKV versus PbA + CHIKV; ***mean diff = −1.621 × 107, PbA versus PbA + CHIKV; ***mean diff = −3.11 × 107. For LFA‐1+CD4+ T cells (B, right): naïve versus PbA + CHIKV; ***mean diff = −1.056 × 107, CHIKV versus PbA + CHIKV; ***mean diff = −8.321 × 106, PbA versus PbA + CHIKV; ***mean diff = −1.119 × 107. For total CD8+ T cells (C, left): naïve versus PbA + CHIKV; ***mean diff = −1.250 × 107, CHIKV versus PbA + CHIKV; ***mean diff = −1.203 × 107, PbA versus PbA + CHIKV; ***mean diff = −1.770 × 107. For LFA‐1+CD8+ T cells (C, right): naïve versus PbA + CHIKV; ***mean diff = −9.094 × 106, CHIKV versus PbA + CHIKV; ***mean diff = −8.109 × 106, PbA versus PbA + CHIKV; ***mean diff = −7.687 × 106.DParasite epitope (Pb1)‐specific CD8+ T cells in the spleen of PbA (n = 4) and PbA + CHIKV (n = 5) groups on 6 dpi. Data shown are representative of two independent experiments. Mann–Whitney two‐tailed analysis (*P = 0.0159).ERepresentative plot of in vivo cytotoxic assay of naive (n = 2), PbA (n = 4) and PbA + CHIKV (n = 7). Equal numbers of CFSEhi unpulsed naive splenocytes and CFSElo SQLLNAKYL (Pb1) pulsed splenocytes were transferred into the mice on 6 dpi. All mice from PbA and CHIKV + PbA groups showed > 95% of specific lysis on Pb1 pulsed donor cells. Red arrows indicate pulsed splenocytes that were lysed.Data information: All bar graphs are expressed as mean + SD. Teck‐Hui Teo et al. EMBO Mol Med. 2017;emmm.201707885 © as stated in the article, figure or figure legend