Cited by 153Protein Kinase Regulation and GTPase SignalingProtein Tyrosine PhosphatasesMelanoma and MAPK Pathways

Pharmacological targeting of RAS: recent success with direct inhibitors

Open access
O’Bryan, John P.·2019·Pharmacological Research

Abstract

RAS has long been viewed as undruggable due to its lack of deep pockets for binding of small molecule inhibitors. However, recent successes in the development of direct RAS inhibitors suggest that the goal of pharmacological inhibition of RAS in patients may soon be realized. This review will discuss the role of RAS in cancer, the approaches used to develop direct RAS inhibitors, and highlight recent successes in the development of novel RAS inhibitory compounds that target different aspects of RAS biochemistry. In particular, this review will discuss the different properties of RAS that have been targeted by various inhibitors including membrane localization, the different activation states of RAS, effector binding, and nucleotide exchange. In addition, this review will highlight the recent success with mutation-specific inhibitors that exploit the unique biochemistry of the RAS(G12C) mutant. Although this mutation in KRAS accounts for 11% of all KRAS mutations in cancer, it is the most prominent KRAS mutant in lung cancer suggesting that G12C-specific inhibitors may provide a new approach for treating the subset of lung cancer patients harboring this mutant allele. Finally, this review will discuss the involvement of dimerization in RAS function and highlight new approaches to inhibit RAS by specifically interfering with RAS:RAS interaction.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.phrs.2018.10.021

Cites

116 of 116 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • KRAS mutation is the most frequently observed RAS gene mutation, accounting for 83% of all RAS mutations in human cancers.

    “Among different RAS gene mutations, KRAS mutation is the most frequently observed, accounting for 83% of all RAS mutations in human cancers.8,36”

    From Overcoming Resistance to Drugs Targeting KRAS Mutation (2020) · cites this paper as [36]

  • Glycine codon 12 (G12) and G13 mutations represent 81.5% and 14% of all KRAS mutations, respectively, while mutations in other positions of KRAS are rare.

    “Glycine codon 12 (G12) and G13 mutations represent 81.5% and 14% of all KRAS mutations, respectively, while the mutations in other positions of KRAS gene are rare.8,36”

    From Overcoming Resistance to Drugs Targeting KRAS Mutation (2020) · cites this paper as [36]

  • KRASG12C inhibitors do not affect RAS signalling in non-malignant cells and theoretically carry a low risk of on-target, off-tumour toxicity.

    “Accordingly, inhibitors of this type are KRASG12C specific; therefore, they do not affect RAS signalling in non-malignant cells65,70–72 and, at least theoretically, have a low risk of on-target, off-tumour toxicities.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
O’Bryan, J. P.
Affiliations
Medical University of South Carolina (US)
Corresponding author
O’Bryan, John P.
Venue
Pharmacological Research
Publisher
Elsevier BV
Published
2019-01
Volume
139
Pages
503-511
ISSN
1043-6618 (ISSN-L)
OpenAlex
W2897527318
Cited by
153
References
116
Citations by year
2026: 2 · 2025: 10 · 2024: 13 · 2023: 23 · 2022: 28 · 2021: 28 · 2020: 31 · 2019: 17 · 2018: 1
FWCI
1.91
Type
journal article
Language
en
Open access
Locations
  • Pharmacological Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
United States (US) Department of Veterans Affairs Biomedical Laboratory Research and Development Service and NIH awards (CA201717, CA212608)
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
Ras, undruggable targets, KRAS G12C mutation, nucleotide exchange, effector binding, membrane localization, lung cancer, cancer therapy
MeSH terms
Animals, Antineoplastic Agents, Cell Membrane, Humans, Neoplasms, ras Proteins, Protein Multimerization

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review