Figure 9.
Unbalanced proliferative and apoptotic signaling in Atg5 deficient iNKT cells. Thymic iNKT cells were analyzed ex vivo for activation of mTOR signaling pathway. Phosphorylation of mTORC1 substrate, 4E–BP1 (pT37/pT46) (A), and phosphorylation of mTORC2 substrate, AKT(pS473) (B), were analyzed. (C) Phosphorylation of AKT at T308 was measured to evaluate the PI3K/PDK1 signaling pathway. Both Cre- and Cre+ were pooled from at least four samples. Shown here is the representative flow cytometry analysis of three independent experiments. Filled histogram: isotype control; solid line: wild type mice; dotted line: Atg5f/f CD4-Cre mice. *p<0.05, **p<0.01, ***p<0.005, ****p<0.0005, n≥4. Error bars are SD.