Chemistry & Biology
Volume 13, Issue 11, November 2006, Pages 1235-1242
Journal home page for Chemistry & Biology

Article
Stattic: A Small-Molecule Inhibitor of STAT3 Activation and Dimerization

https://doi.org/10.1016/j.chembiol.2006.09.018Get rights and content
Under an Elsevier user license
open archive

Summary

Signal transducers and activators of transcription (STATs) are a family of latent cytoplasmic transcription factors that transmit signals from the cell membrane to the nucleus. One family member, STAT3, is constitutively activated by aberrant upstream tyrosine kinase activities in a broad spectrum of cancer cell lines and human tumors. Screening of chemical libraries led to the identification of Stattic, a nonpeptidic small molecule shown to selectively inhibit the function of the STAT3 SH2 domain regardless of the STAT3 activation state in vitro. Stattic selectively inhibits activation, dimerization, and nuclear translocation of STAT3 and increases the apoptotic rate of STAT3-dependent breast cancer cell lines. We propose Stattic as a tool for the inhibition of STAT3 in cell lines or animal tumor models displaying constitutive STAT3 activation.

CHEMBIO
CELLCYCLE

Cited by (0)