Figure 5.
The positive effect of MTOR inhibition on autophagy deficient HSCs is cell intrinsic. (A) Experimental setup of rapamycin treatment in Mx1Cre atg5fl/fl:WT (1:1) mixed BM chimeras. (B) Frequencies of PTPRCb/CD45.2 cells in the blood of chimeric mice 10 weeks after reconstitution, prior to poly(I:C) treatment. (C) Frequencies of PTPRCb/CD45.2 LSKs. (D) Frequencies of PTPRCb/CD45.2 HSCs. (E) MFI of p-RPS6 (PTPRCb/CD45.2: PTPRCa/CD45.1 ratio) in LSKs. (F) MFI of p-RPS6 (PTPRCb/CD45.2: PTPRCa/CD45.1 ratio) in HSCs. (G) MFI of OPP (PTPRCb/CD45.2: PTPRCa/CD45.1 ratio) in LSKs. (H) MFI of OPP (PTPRCb/CD45.2: PTPRCa/CD45.1 ratio) in HSCs. (I) MFI of MKI67 in PTPRCb/CD45.2 LSKs. (J) MFI of MKI67 in PTPRCb/CD45.2 HSCs. (K) MFI of cystine-FITC (PTPRCb/CD45.2: PTPRCa/CD45.1 ratio) in LSKs. (L) MFI of cystine-FITC (PTPRCb/CD45.2: PTPRCa/CD45.1 ratio) in HSCs. (M) MFI of Kyn in PTPRCb/CD45.2 LSKs. (N) MFI of Kyn in PTPRCb/CD45.2 HSCs. Pooled data from 2 experiments (n = 6 animals/group). Data are represented as mean ± SEM with two-way ANOVA with post hoc Tukey’s test.