alexa Antagonizing STAT3 dimerization with a rhodium(III) complex.
Chemistry

Chemistry

Journal of Physical Chemistry & Biophysics

Author(s): Ma DL, Liu LJ, Leung KH, Chen YT, Zhong HJ,

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Abstract Kinetically inert metal complexes have arisen as promising alternatives to existing platinum and ruthenium chemotherapeutics. Reported herein, to our knowledge, is the first example of a substitutionally inert, Group 9 organometallic compound as a direct inhibitor of signal transducer and activator of transcription 3 (STAT3) dimerization. From a series of cyclometalated rhodium(III) and iridium(III) complexes, a rhodium(III) complex emerged as a potent inhibitor of STAT3 that targeted the SH2 domain and inhibited STAT3 phosphorylation and dimerization. Significantly, the complex exhibited potent anti-tumor activities in an in vivo mouse xenograft model of melanoma. This study demonstrates that rhodium complexes may be developed as effective STAT3 inhibitors with potent anti-tumor activity. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This article was published in Angew Chem Int Ed Engl and referenced in Journal of Physical Chemistry & Biophysics

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