Evidence map›Paper›PMID 19533338›Full record

ArticleBreast cancer research and treatment2010

Androgen receptor overexpression induces tamoxifen resistance in human breast cancer cells.

Francesca De Amicis, Janagi Thirugnansampanthan, Yukun Cui, Jennifer Selever, Amanda Beyer, Irma Parra, Nancy L Weigel, Matthew H Herynk, Anna Tsimelzon, Michael T Lewis and 4 more

Open access · greenAbstract read
In one paragraph

Article in Breast cancer research and treatment, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 123 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
123citing papers in PubMed, 4 pooled it
3.3field-weighted citation impact, top 8% 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

123 citing papers in PubMed, 4 syntheses or guidelines pooled it, 223 citations in OpenAlex.

  1. Pooled it
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  4. Pooled it
  5. Trial
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  7. Trial
  8. Abiraterone acetate, exemestane or the combination in postmenopausal patients with estrogen receptor-positive metastatic breast cancer.Annals of oncology : official journal of the European Society for Medical Oncology · 2016
    Trial
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  18. Article
  19. Review
  20. Hormone Signaling in Breast Development and Cancer.Advances in experimental medicine and biology · 2025
    Review

63 more citing papers are in PubMed but not listed here.

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 2 institutions in 2 countries.

Francesca De AmicisBreast Center, Baylor College of Medicine, Houston, TX 77030, USA.
Janagi Thirugnansampanthan
Yukun Cui
Jennifer Selever
Amanda Beyer
Irma Parra
Nancy L Weigel
Matthew H Herynk
Anna Tsimelzon
Michael T Lewis
Gary C Chamness
Susan G Hilsenbeck
Sebastiano Andò
Suzanne A W Fuqua
Baylor College of Medicine · USUniversity of Calabria · IT

Funding

Tumor BiologyP30CA125123 · NCI · BAYLOR COLLEGE OF MEDICINE · PI DAVID R ROWLEY · 2007 to 2026
$73.9M
TUMOR SUPPRESSOR GENES IN BREAST CANCER DEVELOPMENTP50CA058183 · NCI · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI OSBORNE, C KENT · 1992 to 2012
$30.9M
TRANSFORMING GROWTH FACTOR ALPHA IN PATHOGENESIS OF BREAST CANCERP01CA030195 · NCI · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI OESTERREICH, STEFFI · 1985 to 2009
$16.8M
Replication Stress and DNA Damage Response Drives ESR1 Mutant MetastasisR01CA072038 · NCI · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI Suzanne AW Fuqua · 1996 to 2026
$6.7M
Translational Breast Cancer Research Training ProgramT32CA090221 · NCI · BAYLOR COLLEGE OF MEDICINE · PI FUQUA, SUZANNE AW · 2002 to 2012
$2.1M
RADIATION ONCOLOGY RESEARCH TRAINING PROGRAMT32CA009022 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI LAUGHLIN, JOHN S · 1985 to 1987
–
NCI NIH HHS P01 CA030195NCI NIH HHS P01-CA30195NCI NIH HHS P30 CA125123NCI NIH HHS P50 CA058183NCI NIH HHS P50-CA58183NCI NIH HHS R01 CA072038NCI NIH HHS T32 CA090221NCI NIH HHS T32 CA9022
6 · The paper itself

Abstract

Although the androgen receptor (AR) is a known clinical target in prostate cancer, little is known about its possible role in breast cancer. We have investigated the role of AR expression in human breast cancer in response to treatment with the antiestrogen tamoxifen. Resistance to tamoxifen is a major problem in treating women with breast cancer. By gene expression profiling, we found elevated AR and reduced estrogen receptor (ER) alpha mRNA in tamoxifen-resistant tumors. Exogenous overexpression of AR rendered ERalpha-positive MCF-7 breast cancer cells resistant to the growth-inhibitory effects of tamoxifen in anchorage-independent growth assays and in xenograft studies in athymic nude mice. AR-overexpressing cells remained sensitive to growth stimulation with dihydrotestosterone. Treatment with the AR antagonist Casodex (bicalutamide) reversed this resistance, demonstrating the involvement of AR signaling in tamoxifen resistance. In AR-overexpressing cells, tamoxifen induced transcriptional activation by ERalpha that could be blocked by Casodex, suggesting that AR overexpression enhances tamoxifen's agonistic properties. Our data suggest a role for AR overexpression as a novel mechanism of hormone resistance, so that AR may offer a new clinical therapeutic target in human breast cancers.

Indexed as

AnimalsAntineoplastic Agents, HormonalBlotting, WesternBreast NeoplasmsCell Line, TumorDrug Resistance, NeoplasmFemaleHumansMiceMice, NudeOligonucleotide Array Sequence AnalysisReceptors, AndrogenReverse Transcriptase Polymerase Chain ReactionTamoxifenTransfectionXenograft Model Antitumor AssaysAntineoplastic Agents, HormonalReceptors, AndrogenTamoxifen

Identifiers

PMID19533338
PMCPMC2995248
OpenAlexW2074619468

What OpenQuestion holds

Textmetadata
LicenceTDM
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.