Activation of Signal Transducer and Activator of Transcription 3 through a Phosphomimetic Serine 727 Promotes Prostate Tumorigenesis Independent of Tyrosine 705 Phosphorylation

Abstract excerpt

Aberrantly activated signal transducer and activator of transcription 3 (Stat3) is implicated in the development of various human cancers. Y705 phosphorylation is conventionally thought to be required for Stat3 signal-dependent activation and seems to play an essential role in some malignancies. Recently, it was shown that Stat3 is activated through novel and noncanonical mechanisms, including phosphorylation at...

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