Evidence map›Paper›PMID 34168046›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2021

RASAL2 Confers Collateral MEK/EGFR Dependency in Chemoresistant Triple-Negative Breast Cancer.

Siang-Boon Koh, Kenneth Ross, Steven J Isakoff, Nsan Melkonjan, Lei He, Karina J Matissek, Andrew Schultz, Erica L Mayer, Tiffany A Traina, Lisa A Carey and 8 more

Open access · greenAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.4field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. cAMP response element-binding protein: A credible cancer drug target.The Journal of pharmacology and experimental therapeutics · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Genomic Landscape and Potential Regulation of RNA Editing in Drug Resistance.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. The emerging roles of srGAPs in cancer.Molecular biology reports · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors at 8 institutions in 1 country.

Siang-Boon KohMassachusetts General Hospital Cancer Center, Boston, Massachusetts.ORCID 0000-0002-5494-3800
Kenneth RossMassachusetts General Hospital Cancer Center, Boston, Massachusetts.
Steven J IsakoffMassachusetts General Hospital Cancer Center, Boston, Massachusetts.ORCID 0000-0002-6677-1014
Nsan MelkonjanMassachusetts General Hospital Cancer Center, Boston, Massachusetts.
Lei HeMassachusetts General Hospital Cancer Center, Boston, Massachusetts.
Karina J MatissekMassachusetts General Hospital Cancer Center, Boston, Massachusetts.
Andrew SchultzMassachusetts General Hospital Cancer Center, Boston, Massachusetts.
Erica L MayerHarvard Medical School, Boston, Massachusetts.ORCID 0000-0001-5430-8957
Tiffany A TrainaMemorial Sloan Kettering Cancer Center, New York, New York.ORCID 0000-0003-3597-0050
Lisa A CareyUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina.ORCID 0000-0003-2388-4649
Hope S RugoUniversity of California San Francisco, San Francisco, California.
Minetta C LiuGeorgetown Lombardi Comprehensive Cancer Center, Washington, District of Columbia.ORCID 0000-0002-8206-5232
Vered StearnsJohns Hopkins University and Sidney Kimmel Cancer Center, Baltimore, Maryland.
Adam LangenbucherMassachusetts General Hospital Cancer Center, Boston, Massachusetts.
Srinivas Vinod SaladiMassachusetts General Hospital Cancer Center, Boston, Massachusetts.ORCID 0000-0001-8147-4379
Sridhar RamaswamyMassachusetts General Hospital Cancer Center, Boston, Massachusetts.
Michael S LawrenceMassachusetts General Hospital Cancer Center, Boston, Massachusetts.
Leif W EllisenMassachusetts General Hospital Cancer Center, Boston, Massachusetts. lellisen@mgh.harvard.edu.ORCID 0000-0003-0444-7910
Harvard University · USBroad Institute · USMassachusetts General Hospital · USGeorgetown University Medical Center · USMemorial Sloan Kettering Cancer Center · USSidney Kimmel Comprehensive Cancer Center · USUniversity of California, San Francisco · USUniversity of North Carolina at Chapel Hill · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI SELWYN M VICKERS · 1985 to 2026
$347.4M
VectorP30CA006516 · NCI · DANA-FARBER CANCER INSTITUTE · PI Irene M. Ghobrial · 1985 to 2026
$330.6M
Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Deborah F. Tate · 1985 to 2026
$201.5M
NCI NIH HHS P30 CA006516NCI NIH HHS P30 CA008748NCI NIH HHS P30 CA016086
6 · The paper itself

Abstract

purposeWhile chemotherapy remains the standard treatment for triple-negative breast cancer (TNBC), identifying and managing chemoresistant tumors has proven elusive. We sought to discover hallmarks and therapeutically actionable features of refractory TNBC through molecular analysis of primary chemoresistant TNBC specimens. EXPERIMENTAL

designWe performed transcriptional profiling of tumors from a phase II clinical trial of platinum chemotherapy for advanced TNBC (TBCRC-009), revealing a gene expression signature that identified

resultsWe reveal the RAS-GTPase-activating protein (RAS-GAP) RASAL2 as an upregulated factor that mediates chemotherapy resistance but also an exquisite collateral sensitivity to combination MAP kinase kinase (MEK1/2) and EGFR inhibitors in TNBC. Mechanistically, RASAL2 GAP activity is required to confer kinase inhibitor sensitivity, as RASAL2-high TNBCs sustain basal RAS activity through suppression of negative feedback regulators SPRY1/2, together with EGFR upregulation. Consequently, RASAL2 expression results in failed feedback compensation upon co-inhibition of MEK1/2 and EGFR that induces synergistic apoptosis

conclusionsThese findings identify RASAL2 as a mediator of TNBC chemoresistance that rewires MAPK feedback and cross-talk to confer profound collateral sensitivity to combination MEK1/2 and EGFR inhibitors.

Indexed as

Drug Resistance, NeoplasmCell Line, TumorErbB ReceptorsFemaleGTPase-Activating ProteinsHumansMitogen-Activated Protein Kinase KinasesTriple Negative Breast NeoplasmsEGFR protein, humanErbB ReceptorsGTPase-Activating ProteinsMitogen-Activated Protein Kinase KinasesRASAL2 protein, human

Identifiers

PMID34168046
PMCPMC8416935
OpenAlexW3174841475

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.