Journal
GENES & DEVELOPMENT
Volume 16, Issue 20, Pages 2627-2632Publisher
COLD SPRING HARBOR LAB PRESS
DOI: 10.1101/gad.239102
Keywords
growth; TSC; S6K; TOR; PTEN; PKB
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Tuberous sclerosis complex (TSC) is a genetic disorder caused by mutations in one of two tumor suppressor genes, TSC1 and TSC2. Here, we show that absence of Drosophila Tsc1/2 leads to constitutive dS6K activation and inhibition of dPKB, the latter effect being relieved by loss of dS6K. In contrast, the dPTEN tumor suppressor, a negative effector of PI3K, has little effect on dS6K, but negatively regulates dPKB. More importantly, we demonstrate that reducing dS6K signaling rescues early larval lethality associated with loss of dTsc1/2 function, arguing that the S6K pathway is a promising target for the treatment of TSC.
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