Evidence map›Paper›PMID 22926341›Full record

ArticleCancer prevention research (Philadelphia, Pa.)2012

The combination of tamoxifen and the rexinoid LG100268 prevents ER-positive and ER-negative mammary tumors in p53-null mammary gland mice.

Abhijit Mazumdar, Daniel Medina, Francis S Kittrell, Yun Zhang, Jamal L Hill, David E Edwards, Reid P Bissonnette, Powel H Brown

Open access · bronzeAbstract read
In one paragraph

Article in Cancer prevention research (Philadelphia, Pa.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

11 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Targeting the mTOR Pathway for the Prevention of ER-Negative Breast Cancer.Cancer prevention research (Philadelphia, Pa.) · 2022
    Article
  6. Review
  7. Review
  8. Review
  9. Article
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  11. Article
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

8 authors at 2 institutions in 1 country.

Abhijit MazumdarDepartment of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
Daniel Medina
Francis S Kittrell
Yun Zhang
Jamal L Hill
David E Edwards
Reid P Bissonnette
Powel H Brown
Baylor College of Medicine · USLigand Pharmaceuticals (United States) · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
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
PREVENTION OF BREAST CANCER USING SELECTIVE RETINOIDSR01CA078480 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI BROWN, POWEL H · 1999 to 2008
$3.1M
NCI NIH HHS CA-016672NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA058183NCI NIH HHS P50 CA-58183NCI NIH HHS R01 CA-078480NCI NIH HHS R01 CA078480
6 · The paper itself

Abstract

In pursuit of effective therapeutic agents for the estrogen receptor (ER)-negative breast cancer, we previously showed that bexarotene reduced mammary tumor development by 75% in ErbB2 mice. To further improve the effectiveness of breast cancer prevention, we have now investigated the effects of a combinatorial therapy consisting of two cancer preventive drugs. On the basis of the hypothesis, rexinoid LG100268 plus tamoxifen would more effectively prevent the development of both ER-positive and ER-negative breast cancer. We treated p53-null mammary gland mice with tamoxifen and LG100268, individually and in combination. By 60 weeks of age, vehicle-treated mice developed tumors in 52% of transplanted mammary glands, whereas mice treated with tamoxifen and LG100268 developed tumors in only 13% of transplanted mammary glands. To further define the mechanistic effects of this combinatorial treatment, we investigated the effects of tamoxifen and LG100268 on mammary tissue biomarkers. In mammary tissue harvested before tumor development, the proliferation markers Ki67 and cyclin D1 were significantly reduced in mice treated with the combination therapy. In addition, the rexinoid target genes ABCA1 and ABCG1 were induced in both the rexinoid and combination treatment groups, whereas expression remained constant in tamoxifen group. These results show that tamoxifen-LG100268 combinatorial treatment is more effective in preventing mammary tumors than either agent alone. In addition, these studies have identified relevant tissue biomarkers that can be used to show the effect of these agents on mammary tissue. These results support the development of clinical trials of antiestrogen and rexinoid combinatorial therapy for the prevention of patients with high-risk breast cancer.

Indexed as

AnimalsBlotting, WesternBone Density Conservation AgentsFemaleImmunoenzyme TechniquesMammary Neoplasms, ExperimentalMammary Tumor Virus, MouseMiceMice, Inbred BALB CNicotinic AcidsReal-Time Polymerase Chain ReactionReceptors, EstrogenReverse Transcriptase Polymerase Chain ReactionRNA, MessengerTamoxifenTetrahydronaphthalenesBone Density Conservation AgentsLG 100268Nicotinic AcidsReceptors, EstrogenRNA, MessengerTamoxifenTetrahydronaphthalenesTumor Suppressor Protein p53

Identifiers

PMID22926341
PMCPMC3837417
OpenAlexW2110224135

What OpenQuestion holds

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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.