Cited by 75Protein Kinase Regulation and GTPase SignalingProtein Tyrosine PhosphatasesMelanoma and MAPK Pathways

Inhibitors of Ras–SOS Interactions

Lu, Shaoyong, Jang, Hyunbum, Zhang, Jian, Nussinov, Ruth·2016·ChemMedChem

Abstract

Activating Ras mutations are found in about 30 % of human cancers. Ras activation is regulated by guanine nucleotide exchange factors, such as the son of sevenless (SOS), which form protein–protein interactions (PPIs) with Ras and catalyze the exchange of GDP by GTP. This is the rate‐limiting step in Ras activation. However, Ras surfaces lack any evident suitable pockets where a molecule might bind tightly, rendering Ras proteins still ‘undruggable’ for over 30 years. Among the alternative approaches is the design of inhibitors that target the Ras–SOS PPI interface, a strategy that is gaining increasing recognition for treating Ras mutant cancers. Herein we focus on data that has accumulated over the past few years pertaining to the design of small‐molecule modulators or peptide mimetics aimed at the interface of the Ras–SOS PPI. We emphasize, however, that even if such Ras–SOS therapeutics are potent, drug resistance may emerge. To counteract this development, we propose “pathway drug cocktails”, that is, drug combinations aimed at parallel (or compensatory) pathways. A repertoire of classified cancer, cell/tissue, and pathway/protein combinations would be beneficial toward this goal.

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Crossref · 10.1002/cmdc.201500481

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  • Designing PPI inhibitors to block the interaction of RAS and RAS effect factors represents a promising paradigm for modulating RAS function and provides new impetus for the discovery of related drugs.

    “Designing PPI inhibitors to block the interaction of RAS and RAS effect factors represents a promising paradigm for modulating RAS function and provides new impetus for the discovery of related drugs.86,326–329”

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Authors
Lu, S., Jang, H., Zhang, J., & Nussinov, R.
Affiliations
  • Shanghai Jiao Tong University (CN)
  • National Cancer Institute (US)
  • Tel Aviv University (IL)
Corresponding author
  • Zhang, Jian
  • Nussinov, Ruth
Venue
ChemMedChem
Publisher
Wiley
Published
2015-12-02
Volume
11
Issue
8
Pages
814-821
ISSN
  • 1860-7179 (ISSN-L)
  • 1860-7187
OpenAlex
W2187262623
Cited by
72
References
82
Citations by year
2026: 2 · 2025: 4 · 2024: 6 · 2023: 7 · 2022: 8 · 2021: 11 · 2020: 7 · 2019: 4 · 2018: 9 · 2017: 7 · 2016: 5 · 2015: 1
FWCI
0.71
Type
journal article
Language
en
Open access
closed
Locations
  • ChemMedChem (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Basic Research Program of China
  • 973 Program (2015CB910403)
  • National Natural Science Foundation of China (81322046, 81302698, 81473137)
  • Shanghai Rising-Star Program (13A1402300)
  • Program for New Century Excellent Talents in University (NCET-12-0355)
  • Shanghai Health and Family Planning Commission (20154Y0058)
  • Frederick National Laboratory for Cancer Research
  • National Institutes of Health (NIH) (HHSN261200800001E)
  • Intramural Research Program
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Melanoma and MAPK Pathways
Keywords
Son of Sevenless, Ras activation, guanine nucleotide exchange factor, protein-protein interaction inhibitors, RAS-mutant cancers, small molecule inhibitors, peptidomimetics, drug resistance, combination therapy
MeSH terms
Binding Sites, Humans, Models, Molecular, Peptides, Protein Binding, Molecular Structure, ras Proteins, Son of Sevenless Proteins, Small Molecule Libraries

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