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This study investigates the impact of Bim-/- deletion on the viability and proliferation of regulatory T cells (Treg) and conventional T cells (Tcon). We analyze the response of both T cell subsets in the presence of IL-2, IL-4, and IL-7, assessing CD25 and Foxp3 expression levels. Results highlight that Bim-/- Tcon and Treg exhibit distinct viability and proliferation patterns, emphasizing the critical role of Bim in T cell dynamics. Statistical analyses confirm significant differences, providing insights into the mechanisms regulating T cell responses.
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2.5 16.5 2.3 5.3 2.9 2.4 24 71 4.6 23.4 18 9.4 13.4 13.9 12 23 6 WT Tcon WT Treg +- +IL2 +IL4 +IL7 76 WT Bim-/- *** 30 100 % CD25+Foxp3+ (in CD4+ cells) Count 80 20 Bim-/- Tcon Bim-/-Treg 60 Viability(%) 10 40 20 BIM-/- Tcon BIM-/- Treg WT Tcon 0 WT Treg *** P = 0.0001 CFSE 0 WT Tcon WT Treg WT Tcon WT Treg WT Treg+IL7 8 22 10 Foxp3 PI Bim-/- Tcon Bim-/-Treg Bim-/- Tcon Bim-/-Treg Bim-/- Treg+IL7 53 FSC CFSE a b B6 CD45.1 Bcltg-CD45.1 BALB/C B6 Bim -/- Foxp3 Foxp3 CD4 CD4 B6 Bim -/- CD45.1 Bcltg-CD45.1 B6 BALB/C Foxp3 Foxp3 CD25 CD25 d e c g f