Figure 3. IL-33 increases local population of CD4+ Foxp3+ Tregs in blank scaffold implant.
(A) Representative flow cytometry plots and quantification of percentages and overall numbers of live CD3+ CD4+ Foxp3+ Tregs isolated from control and IL-33 scaffolds seven days after implant. Frequency of ST2+ Foxp3+ CD4+ T cells seven days after implant as quantified by flow cytometry (B) Representative flow cytometry plot and quantification of percentages and overall numbers of ST2+ Foxp3+ CD4+ T cells seven days after implant (C) Representative flow cytometry plots and quantification of percentages of CD4+ Foxp3+ cells and ST2+ Tregs isolated from spleens of animals receiving control or IL-33 scaffolds. Overall numbers are normalized to weight of tissue immediately after isolation. Graphs depict mean ± SEM. N = 5-6 scaffolds per condition. **p < 0.01 ***p < 0.001 ****p < 0.0001 Statistics determined by unpaired t-test. (1.5 column)