Cited by 41Synthesis and biological activityProtein Kinase Regulation and GTPase SignalingCancer Mechanisms and Therapy

Structure-Based Design of a Potent and Selective Covalent Inhibitor for SRC Kinase That Targets a P-Loop Cysteine

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Du, Guangyan, Rao, Suman, Gurbani, Deepak, Henning, Nathaniel J., Jiang, Jie, Che, Jianwei, Yang, Annan, Ficarro, Scott B. +6 more·2020·Journal of Medicinal Chemistry

Abstract

SRC is a major regulator of many signaling pathways and contributes to cancer development. However, development of a selective SRC inhibitor has been challenging, and FDA-approved SRC inhibitors, dasatinib and bosutinib, are multitargeted kinase inhibitors. Here, we describe our efforts to develop a selective SRC covalent inhibitor by targeting cysteine 277 on the P-loop of SRC. Using a promiscuous covalent kinase inhibitor (CKI) SM1-71 as a starting point, we developed covalent inhibitor 15a, which discriminates SRC from other covalent targets of SM1-71 including TAK1 and FGFR1. As an irreversible covalent inhibitor, compound 15a exhibited sustained inhibition of SRC signaling both in vitro and in vivo . Moreover, 15a exhibited potent antiproliferative effects in nonsmall cell lung cancer cell lines harboring SRC activation, thus providing evidence that this approach may be promising for further drug development efforts.

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Crossref · 10.1021/acs.jmedchem.9b01502

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  • DGY-06-116 targets cysteine-277 in the P-loop.

    “We also demonstrated that an irreversible covalent inhibitor of SRC, DGY-06-116, which targets cysteine-277 in the P-loop (49, 50), enhances the antitumor activity of MRTX849 in multiple KRAS-G12C cancers.”

    From SRC kinase drives multidrug resistance induced by KRAS-G12C inhibition (2024) · cites this paper as [49]

    The Mass Spectrometry methods describe treating SRC with DGY-06–116 and searching for cysteine modification. The Results section identifies Cys277 in the P-loop as the modification site for compound 15a, but the passages do not establish that 15a is DGY-06–116 or report DGY-06–116’s modification site. (LLM, conf=0.78)

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Authors
Du, G., Rao, S., Gurbani, D., Henning, N. J., Jiang, J., Che, J., Yang, A., Ficarro, S. B., Marto, J. A., Aguirre, A. J., Sorger, P. K., Westover, K. D., Zhang, T., & Gray, N. S.
Affiliations
  • Harvard University (US)
  • The University of Texas Southwestern Medical Center (US)
  • Dana-Farber Cancer Institute (US)
Corresponding author
  • Westover, Kenneth D.
  • Zhang, Tinghu
  • Gray, Nathanael S.
Venue
Journal of Medicinal Chemistry
Published
2020-01-14
Volume
63
Issue
4
Pages
1624-1641
ISSN
  • 0022-2623 (ISSN-L)
  • 1520-4804
OpenAlex
W2998780337
Cited by
39
References
52
Citations by year
2026: 5 · 2025: 4 · 2024: 8 · 2023: 11 · 2022: 2 · 2021: 5 · 2020: 4
FWCI
2.42
Type
journal article
Language
en
Open access
Locations
  • Journal of Medicinal Chemistry (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Cancer Institute (P50CA07090720)
  • Welch Foundation (I-1829)
  • American Cancer Society (RSG-18-039-01-DMC)
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Synthesis and biological activity
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cancer Mechanisms and Therapy
Keywords
Src kinase, covalent kinase inhibitors, dasatinib, bosutinib, kinase selectivity, TAK1, FGFR1, irreversible inhibition, non-small cell lung cancer, antiproliferative activity, structure-based drug design
MeSH terms
AAA Domain, Amino Acid Sequence, Anilides, Animals, Cysteine, Drug Screening Assays, Antitumor, Humans, Mice, Inbred C57BL, Pyrimidines, Structure-Activity Relationship, Drug Design, Molecular Structure, Signal Transduction, src-Family Kinases, Cell Line, Tumor, Protein Kinase Inhibitors, Cell Proliferation

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