Evidence map›Paper›PMID 28253895›Full record

ArticleBreast cancer research : BCR2017

EZH2 protein expression in normal breast epithelium and risk of breast cancer: results from the Nurses' Health Studies.

Francisco Beca, Kevin Kensler, Benjamin Glass, Stuart J Schnitt, Rulla M Tamimi, Andrew H Beck

Abstract read
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Article in Breast cancer research : BCR, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

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  18. Automated Quantitative Measures of Terminal Duct Lobular Unit Involution and Breast Cancer Risk.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2020
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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

6 authors.

Francisco BecaCancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, 02215, MA, USA. fbeca@bidmc.harvard.edu.ORCID 0000-0002-4409-012X
Kevin KenslerDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
Benjamin GlassCancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, 02215, MA, USA.
Stuart J SchnittCancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, 02215, MA, USA.
Rulla M TamimiDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
Andrew H BeckCancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, 02215, MA, USA.

Funding

VectorP30CA006516 · NCI · DANA-FARBER CANCER INSTITUTE · PI A. Heather Eliassen · 1985 to 2026
$330.6M
Statistical MethodsP01CA087969 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI ROSNER, BERNARD A · 2000 to 2019
$77.8M
Risk Factors for Breast Cancer in Younger NursesR01CA050385 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI ELIASSEN, A. HEATHER, WILLETT, WALTER C. · 1989 to 2019
$32.3M
Long Term Multidisciplinary Study of Cancer in Women: The Nurses Health StudyUM1CA186107 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI ELIASSEN, A. HEATHER, STAMPFER, MEIR · 2014 to 2023
$22.3M
Training Program in Cancer EpidemiologyT32CA009001 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI A. Heather Eliassen, Meir Stampfer · 1985 to 2026
$17.3M
Life Course Cancer Epidemiology Cohort in WomenUM1CA176726 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI WILLETT, WALTER C. · 2013 to 2017
$15.7M
BENIGN BREAST DISEASE &RISK OF BREAST CANCERR01CA046475 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI TAMIMI, RULLA M · 1987 to 2009
$3.1M
Computational pathology to predict breast cancer risk in benign breast diseaseR21CA187642 · NCI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI SCHNITT, STUART, TAMIMI, RULLA M · 2015 to 2016
$439k
Androgen receptor expression and signaling and breast cancer risk and progressionF31CA192462 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI KENSLER, KEVIN HUGHES · 2015 to 2017
$97k
NCI NIH HHS F31 CA192462NCI NIH HHS P01 CA087969NCI NIH HHS P30 CA006516NCI NIH HHS R01 CA046475NCI NIH HHS R01 CA050385NCI NIH HHS R21 CA187642NCI NIH HHS T32 CA009001NCI NIH HHS UM1 CA176726NCI NIH HHS UM1 CA186107
6 · The paper itself

Abstract

backgroundEnhancer of zeste homolog 2 (EZH2) is a polycomb-group protein that is involved in stem cell renewal and carcinogenesis. In breast cancer, increased EZH2 expression is associated with aggressiveness and has been suggested to identify normal breast epithelium at increased risk of breast cancer development. However, the association between EZH2 expression in benign breast tissue and breast cancer risk has not previously been evaluated in a large prospective cohort.

methodsWe examined the association between EZH2 protein expression and subsequent breast cancer risk using logistic regression in a nested case-control study of benign breast disease (BBD) and breast cancer within the Nurses' Health Studies. EZH2 immunohistochemical expression in normal breast epithelium and stroma was evaluated by computational image analysis and its association with breast cancer risk was analyzed after adjusting for matching factors between cases and controls, the concomitant BBD diagnosis, and the Ki67 proliferation index.

resultsWomen with a breast biopsy in which more than 20% of normal epithelial cells expressed EZH2 had a significantly increased risk of developing breast cancer (odds ratio (OR) 2.95, 95% confidence interval (CI) 1.11-7.84) compared to women with less than 10% EZH2 epithelial expression. The risk of developing breast cancer increased for each 5% increase in EZH2 expression (OR 1.22, 95% CI 1.02-1.46, p value 0.026). Additionally, women with high EZH2 expression and low estrogen receptor (ER) expression had a 4-fold higher risk of breast cancer compared to women with low EZH2 and low ER expression (OR 4.02, 95% CI 1.29-12.59).

conclusionsThese results provide further evidence that EZH2 expression in the normal breast epithelium is independently associated with breast cancer risk and might be used to assist in risk stratification for women with benign breast biopsies.

Indexed as

AdultBiomarkers, TumorBiopsyBreast NeoplasmsCase-Control StudiesEnhancer of Zeste Homolog 2 ProteinEpitheliumFemaleGene ExpressionHumansImmunohistochemistryKi-67 AntigenMammary Glands, HumanMiddle AgedNeoplasm GradingNursesBiomarkers, TumorEnhancer of Zeste Homolog 2 ProteinKi-67 AntigenReceptors, EstrogenBenign breast diseaseBreast CancerEZH2Nurses’ Health StudiesRisk

Identifiers

PMID28253895
PMCPMC5335498

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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.