Antagonizing STAT5B dimerization with an osmium complex

نویسندگان

  • Li-Juan Liu
  • Wanhe Wang
  • Tian-Shu Kang
  • Jia-Xin Liang
  • Chenfu Liu
  • Daniel W. J. Kwong
  • Vincent Kam Wai Wong
  • Dik-Lung Ma
  • Chung-Hang Leung
چکیده

Targeting STAT5 is an appealing therapeutic strategy for the treatment of hematologic malignancies and inflammation. Here, we present the novel osmium(II) complex 1 as the first metal-based inhibitor of STAT5B dimerization. Complex 1 exhibited superior inhibitory activity against STAT5B DNA binding compared to STAT5A DNA binding. Moreover, 1 repressed STAT5B transcription and blocked STAT5B dimerization via binding to the STAT5B protein, thereby inhibiting STAT5B translocation to the nucleus. Furthermore, 1 was able to selectively inhibit STAT5B phosphorylation without affecting the expression level of STAT5B.

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عنوان ژورنال:

دوره 6  شماره 

صفحات  -

تاریخ انتشار 2016