New scaffolds for type II JAK2 inhibitors overcome the acquired G993A resistance mutation

Matthew L. Arwood, Yao Liu, Shannon K. Harkins, David M. Weinstock, Lei Yang, Kristen E. Stevenson, Olivia D. Plana, Jingyun Dong, Haley Cirka, Kristen L. Jones, Anniina T. Virtanen, Dikshat G. Gupta, Amanda Ceas, Brian Lawney, Akinori Yoda, Catharine Leahy, Mingfeng Hao, Zhixiang He, Hwan Geun Choi, Yaning WangOlli Silvennoinen, Stevan R. Hubbard, Tinghu Zhang, Nathanael S. Gray, Loretta S. Li

    Tutkimustuotos: ArtikkeliTieteellinenvertaisarvioitu

    3 Sitaatiot (Scopus)

    Abstrakti

    Recurrent JAK2 alterations are observed in myeloproliferative neoplasms, B-cell acute lymphoblastic leukemia, and other hematologic malignancies. Currently available type I JAK2 inhibitors have limited activity in these diseases. Preclinical data support the improved efficacy of type II JAK2 inhibitors, which lock the kinase in the inactive conformation. By screening small molecule libraries, we identified a lead compound with JAK2 selectivity. We highlight analogs with on-target biochemical and cellular activity and demonstrate in vivo activity using a mouse model of polycythemia vera. We present a co-crystal structure that confirms the type II binding mode of our compounds with the “DFG-out” conformation of the JAK2 activation loop. Finally, we identify a JAK2 G993A mutation that confers resistance to the type II JAK2 inhibitor CHZ868 but not to our analogs. These data provide a template for identifying novel type II kinase inhibitors and inform further development of agents targeting JAK2 that overcome resistance.

    AlkuperäiskieliEnglanti
    Sivut618-631.e12
    JulkaisuCell chemical biology
    Vuosikerta30
    Numero6
    DOI - pysyväislinkit
    TilaJulkaistu - 15 kesäk. 2023
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 2

    !!ASJC Scopus subject areas

    • Biochemistry
    • Molecular Medicine
    • Molecular Biology
    • Pharmacology
    • Drug Discovery
    • Clinical Biochemistry

    Sormenjälki

    Sukella tutkimusaiheisiin 'New scaffolds for type II JAK2 inhibitors overcome the acquired G993A resistance mutation'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.
    • Crystal structure of JAK2 JH1 with type II inhibitor YLIU-04-105-1

      Arwood, M. L. (Creator), Liu, Y. (Creator), Harkins, S. K. (Creator), Weinstock, D. M. (Creator), Yang, L. (Creator), Stevenson, K. E. (Creator), Plana, O. D. (Creator), Dong, J. (Creator), Cirka, H. (Creator), Jones, K. L. (Creator), Virtanen, A. T. (Creator), Gupta, D. G. (Creator), Ceas, A. (Creator), Lawney, B. (Creator), Yoda, A. (Creator), Leahy, C. (Creator), Hao, M. (Creator), He, Z. (Creator), Choi, H. G. (Creator), Wang, Y. (Creator), Silvennoinen, O. (Creator), Hubbard, S. R. (Creator), Zhang, T. (Creator), Gray, N. S. (Creator) & Li, L. S. (Creator), Protein Data Bank (PDB), 21 kesäk. 2023

      Tietoaineisto: Dataset

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