Evidence map›Paper›PMID 33208750›Full record

ArticleNature communications2020

EZH2-mediated PP2A inactivation confers resistance to HER2-targeted breast cancer therapy.

Yi Bao, Gokce Oguz, Wee Chyan Lee, Puay Leng Lee, Kakaly Ghosh, Jiayao Li, Panpan Wang, Peter E Lobie, Sidse Ehmsen, Henrik J Ditzel and 4 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

40 citing papers in PubMed, 52 citations in OpenAlex.

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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

14 authors at 6 institutions in 3 countries.

Yi BaoCancer Science Institute of Singapore, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.
Gokce OguzCancer Precision Medicine, Genome Institute of Singapore, Agency for Science, Technology, and Research, Biopolis, Singapore, 138672, Singapore.
Wee Chyan LeeCancer Precision Medicine, Genome Institute of Singapore, Agency for Science, Technology, and Research, Biopolis, Singapore, 138672, Singapore.
Puay Leng LeeCancer Precision Medicine, Genome Institute of Singapore, Agency for Science, Technology, and Research, Biopolis, Singapore, 138672, Singapore.
Kakaly GhoshCancer Precision Medicine, Genome Institute of Singapore, Agency for Science, Technology, and Research, Biopolis, Singapore, 138672, Singapore.
Jiayao LiCancer Research Institute, Jinan University, Guangzhou, China.
Panpan WangCancer Research Institute, Jinan University, Guangzhou, China.
Peter E LobieCancer Science Institute of Singapore, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.
Sidse EhmsenDepartment of Oncology, Odense University Hospital, Institute of Clinical Research, University of Southern Denmark, 5230, Odense, Denmark.ORCID 0000-0002-4807-6325
Henrik J DitzelDepartment of Oncology, Odense University Hospital, Institute of Clinical Research, University of Southern Denmark, 5230, Odense, Denmark.ORCID 0000-0003-3927-5135
Andrea WongDepartment of Haematology-Oncology, National University Cancer Institute, National University Health System, Singapore, 119047, Singapore.
Ern Yu TanDepartment of General Surgery, Tan Tock Seng Hospital, Singapore, Singapore.
Soo Chin LeeCancer Science Institute of Singapore, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore. csilsc@nus.edu.sg.
Qiang YuCancer Precision Medicine, Genome Institute of Singapore, Agency for Science, Technology, and Research, Biopolis, Singapore, 138672, Singapore. yuq@gis.a-star.edu.sg.ORCID 0000-0003-2132-8278
Agency for Science, Technology and Research · SGJinan University · CNNational University of Singapore · SGUniversity of Southern Denmark · DKNational University Cancer Institute, Singapore · SGTan Tock Seng Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

HER2-targeted therapy has yielded a significant clinical benefit in patients with HER2+ breast cancer, yet disease relapse due to intrinsic or acquired resistance remains a significant challenge in the clinic. Here, we show that the protein phosphatase 2A (PP2A) regulatory subunit PPP2R2B is a crucial determinant of anti-HER2 response. PPP2R2B is downregulated in a substantial subset of HER2+ breast cancers, which correlates with poor clinical outcome and resistance to HER2-targeted therapies. EZH2-mediated histone modification accounts for the PPP2R2B downregulation, resulting in sustained phosphorylation of PP2A targets p70S6K and 4EBP1 which leads to resistance to inhibition by anti-HER2 treatments. Genetic depletion or inhibition of EZH2 by a clinically-available EZH2 inhibitor restores PPP2R2B expression, abolishes the residual phosphorylation of p70S6K and 4EBP1, and resensitizes HER2+ breast cancer cells to anti-HER2 treatments both in vitro and in vivo. Furthermore, the same epigenetic mechanism also contributes to the development of acquired resistance through clonal selection. These findings identify EZH2-dependent PPP2R2B suppression as an epigenetic control of anti-HER2 resistance, potentially providing an opportunity to mitigate anti-HER2 resistance with EZH2 inhibitors.

Indexed as

AnimalsAntineoplastic AgentsBreast NeoplasmsCell Line, TumorDrug Resistance, NeoplasmEnhancer of Zeste Homolog 2 ProteinErb-b2 Receptor Tyrosine KinasesFemaleHumansMiceMice, NudeNerve Tissue ProteinsProtein Phosphatase 2QuinazolinesRibosomal Protein S6 Kinases, 70-kDaAntineoplastic AgentsEnhancer of Zeste Homolog 2 ProteinERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesEZH2 protein, humanNerve Tissue ProteinsPPP2R2B protein, humanProtein Phosphatase 2QuinazolinesRibosomal Protein S6 Kinases, 70-kDa

Identifiers

PMID33208750
PMCPMC7674491
OpenAlexW3101182234

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.