Evidence map›Paper›PMID 19141783›Full record

ArticleJournal of the National Cancer Institute2009

Effect of lapatinib on the development of estrogen receptor-negative mammary tumors in mice.

Tracy E Strecker, Qiang Shen, Yun Zhang, Jamal L Hill, Yuxin Li, Chunyu Wang, Hee-Tae Kim, Tona M Gilmer, Krystal R Sexton, Susan G Hilsenbeck and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the National Cancer Institute, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

34 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Article
  3. Dual inhibition of HERs and PD-1 counteract resistance in KRASJournal of experimental & clinical cancer research : CR · 2024
    Article
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  8. Review
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  17. The invisible arm of immunity in common cancer chemoprevention agents.Cancer prevention research (Philadelphia, Pa.) · 2013
    Review
  18. Article
  19. Article
  20. 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

12 authors at 3 institutions in 2 countries.

Tracy E StreckerBreast Center, Department of Medicine and Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA.
Qiang Shen
Yun Zhang
Jamal L Hill
Yuxin Li
Chunyu Wang
Hee-Tae Kim
Tona M Gilmer
Krystal R Sexton
Susan G Hilsenbeck
C Kent Osborne
Powel H Brown
GlaxoSmithKline (United Kingdom) · GBResearch Triangle Park Foundation · USBaylor College of Medicine · US

Funding

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
NCI NIH HHS P50 CA58183
6 · The paper itself

Abstract

Lapatinib, a selective orally available inhibitor of epidermal growth factor receptor (EGFR) and ErbB2 receptor tyrosine kinases, is a promising agent for the treatment of breast cancer. We examined the effect of lapatinib on the development of mammary tumors in MMTV-erbB2 transgenic mice, which express wild-type ErbB2 under the control of the mouse mammary tumor virus promoter and spontaneously develop estrogen receptor (ER)-negative and ErbB2-positive mammary tumors by 14 months of age. Mice were treated from age 3 months to age 15 months with vehicle (n = 17) or lapatinib (30 or 75 mg/kg body weight; n = 16 mice per group) by oral gavage twice daily (6 d/wk). All statistical tests were two-sided. By 328 days after the start of treatment, all 17 (100%) of the vehicle-treated mice vs five (31%) of the 16 mice treated with high-dose lapatinib developed mammary tumors (P < .001). Among MMTV-erbB2 mice treated for 5 months (n = 20 mice per group), those treated with lapatinib had fewer premalignant lesions and noninvasive cancers in their mammary glands than those treated with vehicle (P = .02). Lapatinib also effectively blocked epidermal growth factor-induced signaling through the EGFR and ErbB2 receptors, suppressed cyclin D1 and epiregulin mRNA expression, and stimulated p27 mRNA expression in human mammary epithelial cells and in mammary epithelial cells from mice treated for 5 months with high-dose lapatinib. Thus, cyclin D1, epiregulin, and p27 may represent useful biomarkers of lapatinib response in patients. These data suggest that lapatinib is a promising agent for the prevention of ER-negative breast cancer.

Indexed as

AnimalsAntineoplastic AgentsBiomarkers, TumorBreast NeoplasmsCarcinoma, Intraductal, NoninfiltratingCyclin D1Epidermal Growth FactorEpiregulinErb-b2 Receptor Tyrosine KinasesErbB ReceptorsFemaleGene Expression Regulation, NeoplasticHumansLapatinibMammary Neoplasms, ExperimentalMiceAntineoplastic AgentsBiomarkers, TumorCyclin D1Epidermal Growth FactorEpiregulinErbb2 protein, mouseErb-b2 Receptor Tyrosine KinasesErbB ReceptorsEREG protein, humanEreg protein, mouseLapatinibProtein Kinase InhibitorsQuinazolinesReceptors, EstrogenRNA, Messenger

Identifiers

PMID19141783
PMCPMC2639315
OpenAlexW2045069049

What OpenQuestion holds

Textmetadata
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.