1. Academic Validation
  2. Cell-based screen identifies a new potent and highly selective CK2 inhibitor for modulation of circadian rhythms and cancer cell growth

Cell-based screen identifies a new potent and highly selective CK2 inhibitor for modulation of circadian rhythms and cancer cell growth

  • Sci Adv. 2019 Jan 23;5(1):eaau9060. doi: 10.1126/sciadv.aau9060.
Tsuyoshi Oshima 1 2 Yoshimi Niwa 1 Keiko Kuwata 1 Ashutosh Srivastava 1 Tomoko Hyoda 3 Yoshiki Tsuchiya 4 Megumi Kumagai 5 Masato Tsuyuguchi 6 Teruya Tamaru 7 Akiko Sugiyama 1 Natsuko Ono 1 Norjin Zolboot 1 Yoshiki Aikawa 1 Shunsuke Oishi 1 Atsushi Nonami 8 Fumio Arai 9 Shinya Hagihara 1 2 10 Junichiro Yamaguchi 11 Florence Tama 1 12 Yuya Kunisaki 9 Kazuhiro Yagita 4 Masaaki Ikeda 5 Takayoshi Kinoshita 6 Steve A Kay 1 13 Kenichiro Itami 1 2 14 Tsuyoshi Hirota 1 10
Affiliations

Affiliations

  • 1 Institute of Transformative Bio-Molecules, Nagoya University, Nagoya 464-8601, Japan.
  • 2 Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8601, Japan.
  • 3 Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
  • 4 Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
  • 5 Department of Physiology, Faculty of Medicine, Saitama Medical University, Saitama 350-0495, Japan.
  • 6 Graduate School of Science, Osaka Prefecture University, Osaka 599-8531, Japan.
  • 7 Department of Physiology and Advanced Research Center for Medical Science, Toho University School of Medicine, Tokyo 143-8540, Japan.
  • 8 Center for Advanced Medical Innovation, Kyushu University, Fukuoka 812-8582, Japan.
  • 9 Department of Stem Cell Biology and Medicine/Cancer Stem Cell Research, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan.
  • 10 PRESTO, JST, Nagoya 464-8601, Japan.
  • 11 Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan.
  • 12 Department of Physics, Graduate School of Science, Nagoya University, Nagoya 464-8601, Japan, and RIKEN Center for Computational Science, Kobe 650-0047, Japan.
  • 13 Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA.
  • 14 ERATO Itami Molecular Nanocarbon Project, JST, Nagoya 464-8601, Japan.
Abstract

Compounds targeting the circadian clock have been identified as potential treatments for clock-related diseases, including Cancer. Our cell-based phenotypic screen revealed uncharacterized clock-modulating compounds. Through affinity-based target deconvolution, we identified GO289, which strongly lengthened circadian period, as a potent and selective inhibitor of CK2. Phosphoproteomics identified multiple phosphorylation sites inhibited by GO289 on clock proteins, including PER2 S693. Furthermore, GO289 exhibited cell type-dependent inhibition of Cancer cell growth that correlated with cellular clock function. The x-ray crystal structure of the CK2α-GO289 complex revealed critical interactions between GO289 and CK2-specific residues and no direct interaction of GO289 with the hinge region that is highly conserved among kinases. The discovery of GO289 provides a direct link between the circadian clock and Cancer regulation and reveals unique design principles underlying kinase selectivity.

Figures
Products