Evidence map›Paper›PMID 30826934›Full record

ArticleBreast cancer research and treatment2019

Anti-tumor and anti-metastasis efficacy of E6201, a MEK1 inhibitor, in preclinical models of triple-negative breast cancer.

Jangsoon Lee, Bora Lim, Troy Pearson, Kuicheon Choi, Jon A Fuson, Chandra Bartholomeusz, Linda J Paradiso, Thomas Myers, Debu Tripathy, Naoto T Ueno

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Breast cancer research and treatment, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 25 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Jangsoon LeeSection of Translational Breast Cancer Research, Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Bora LimSection of Translational Breast Cancer Research, Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Troy PearsonSection of Translational Breast Cancer Research, Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Kuicheon ChoiSection of Translational Breast Cancer Research, Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Jon A FusonSection of Translational Breast Cancer Research, Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Chandra BartholomeuszSection of Translational Breast Cancer Research, Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Linda J ParadisoSpirita Oncology, LLC, Natick, MA, USA.
Thomas MyersSpirita Oncology, LLC, Natick, MA, USA.
Debu TripathySection of Translational Breast Cancer Research, Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Naoto T UenoSection of Translational Breast Cancer Research, Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. nueno@mdanderson.org.ORCID http://orcid.org/0000-0002-0166-7275
The University of Texas MD Anderson Cancer Center · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Fabien Delerue · 1985 to 2026
$290.8M
Markers of sensivity to the EGFR inhibitor erlotinib in breast cancerR01CA123318 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI UENO, NAOTO T. · 2007 to 2012
$1.4M
Foundation for the National Institutes of Health CA123318Foundation for the National Institutes of Health P30CA016672NCI NIH HHS P30 CA016672NCI NIH HHS R01 CA123318
6 · The paper itself

Abstract

purposeTriple-negative breast cancer (TNBC) lacks the receptor targets estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2, and thus, it does not respond to receptor-targeted treatments. TNBC has higher recurrence, metastasis, and mortality rates than other subtypes of breast cancer. Mounting data suggest that the MAPK (also known as RAS-RAF-MEK-ERK) pathway is an important therapeutic target in TNBC.

methodsTo evaluate anti-tumor and anti-metastasis efficacy of E6201, we used cell proliferation assay, soft agar assay, cell cycle assay, Annexin V staining assay, immunoblotting analysis, immunohistochemistry, migration assay, invasion assay, mammary fat pad xenograft, and experimental and spontaneous metastasis xenograft models. We also evaluated the anti-tumor efficacy of E6201 plus CDK4/6 inhibitor, mTOR inhibitor, or ATR inhibitor.

resultsE6201 inhibited TNBC cell colony formation, migration, and invasion in a dose-dependent manner. E6201 induced G1 cell cycle arrest and apoptosis. E6201 inhibited TNBC xenograft growth and inhibited TNBC lung metastasis and improved mouse survival in experimental metastasis and spontaneous metastasis assays. Immunohistochemical staining demonstrated that E6201 decreased the metastatic burden in the lung and decreased phosphorylated ERK expression in a dose-dependent manner. Combination of E6201 with CDK4/6 inhibitor or mTOR inhibitor enhanced E6201's in vitro anti-tumor efficacy.

conclusionThese results indicate that E6201 exhibits anti-tumor efficacy against TNBC in vitro and anti-metastasis efficacy against TNBC in vivo. These results provide a rationale for further clinical development of E6201 as a MAPK-pathway-targeted therapy for TNBC.

Indexed as

AnimalsApoptosisAtaxia Telangiectasia Mutated ProteinsCell Cycle CheckpointsCell Line, TumorCell ProliferationCyclin-Dependent Kinase 4FemaleHeterograftsHumansLactonesMAP Kinase Kinase 1MiceNeoplasm MetastasisProtein Kinase InhibitorsTOR Serine-Threonine Kinases14-(ethylamino)-8,9,16-trihydroxy-3,4-dimethyl-3,4,9,19-tetrahydro-1H-2-benzoxacyclotetradecine-1,7(8H)-dioneAtaxia Telangiectasia Mutated ProteinsATR protein, humanCyclin-Dependent Kinase 4LactonesMAP Kinase Kinase 1Protein Kinase InhibitorsTOR Serine-Threonine KinasesE6201MAPK pathwayMEK inhibitorMetastasisTriple-negative breast cancer

Identifiers

PMID30826934
PMCPMC6534477
OpenAlexW2919904016

What OpenQuestion holds

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Registered trials

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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.