Table 1.
Phenotype | mTOR KI | mTOR KIneo− |
---|---|---|
Body size | Reduced by 30% | Normal |
Organ sizes | Spleens much smaller | Spleens normal |
Cell sizes | Reduced | Normal |
mTOR protein levels | Reduced by 70% | Normal |
RAPTOR protein levels | Decreased | Normal |
RICTOR protein levels | Decreased | Normal |
DEPTOR protein levels | Slightly increased | Normal |
mTORC1 target pS6K | Decreased | Normal |
mTORC1 target p4EBP1† | Decreased (BM) | Decreased (BM) |
mTORC2 target pAKTSer473 | Decreased | Normal |
mTORC1 target pS6K activated T cells | Decreased | Normal |
mTORC1 target pS6K activated B cells | Decreased | Normal |
mTORC1 target pS6K insulin-stimulate MEFs | Decreased | Not tested |
mTORC2 target pAKT activated T cells | Decreased | Normal |
mTORC2 target pAKT activated B cells | Increased | Normal |
mTORC2 target pAKT insulin-stimulated MEFs | Decreased | Not tested |
Thymic T cells | Reduced | Normal |
Splenic T cells | Reduced/fewer memory | Normal |
LN T cells | Reduced | Normal |
Proliferation rates of splenic T cells | Reduced/defective | Normal |
BM B cells | Reduced/partial block | Normal |
Splenic B cells | Reduced/fewer T1, MZ, FO | Normal |
LN B cells | Reduced | Normal |
Proliferation/survival splenic B cells | Reduced/defective | Normal |
Antibody production | Reduced | Normal |
BM Gr1+ cells | Normal | Not tested |
Splenic Gr1+ cells | Decreased | Not tested |
BM Mac-1+ cells | Normal | Not tested |
Splenic Mac-1+ cells | Decreased | Not tested |
T-cell migration in spleen, SDF, TECK | Decreased | Not tested |
T-cell migration in spleen, MIP3B | Normal | Not tested |
B-cell migration in spleen, SDF, S1P | Decreased | Not tested |
Neutrophil migration in BM, fMLP | Normal | Not tested |
See supplemental Figure 11.
The mTORC1 downstream target 4EBP1 showed decreased phosphorylation in the BM of KIneo− mice and represents the only observed phenotype attributable to the 628C allele.