Evidence map›Paper›PMID 23372748›Full record

ArticlePloS one2013

RETRACTED: 3, 3'-Diindolylmethane enhances the effectiveness of herceptin against HER-2/neu-expressing breast cancer cells.

Aamir Ahmad, Shadan Ali, Alia Ahmed, Azfur S Ali, Avraham Raz, Wael A Sakr, K M Wahidur Rahman

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.0field-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

21 citing papers in PubMed, 48 citations in OpenAlex.

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  13. Natural Products for the Management and Prevention of Breast Cancer.Evidence-based complementary and alternative medicine : eCAM · 2018
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Aamir AhmadDepartment of Pathology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan, United States of America.
Shadan Ali
Alia Ahmed
Azfur S Ali
Avraham Raz
Wael A Sakr
K M Wahidur Rahman
The Barbara Ann Karmanos Cancer Institute · USWayne State University · US

Funding

Tumor Biology and Microenvironment (Program 1)P30CA022453 · NCI · WAYNE STATE UNIVERSITY · PI PAUL M STEMMER · 1985 to 2026
$68.4M
MOTILITY FACTOR RECEPTORR01CA051714 · NCI · WAYNE STATE UNIVERSITY · PI RAZ, AVRAHAM · 1991 to 2012
$3.8M
Enhancing neoadjuvant chemotherpay responses with targeted T cellsR01CA140314 · NCI · WAYNE STATE UNIVERSITY · PI BEPLER, GEROLD · 2010 to 2015
$2.5M
NCI NIH HHS P30 CA022453NCI NIH HHS R01 CA051714NCI NIH HHS R01 CA140314NCI NIH HHS R01CA51714
6 · The paper itself

Abstract

Herceptin failure is a major clinical problem in breast cancer. A subset of breast cancer patients with high HER-2/neu levels eventually experience metastatic disease progression when treated with Herceptin as a single agent. Mechanistic details of development of this aggressive disease are not clear. Therefore, there is a dire need to better understand the mechanisms by which drug resistance develops and to design new combined treatments that benefit patients with aggressive breast cancer and have minimal toxicity. We hypothesized that 3, 3'-diindolylmethane (DIM), a non-toxic agent can be combined with Herceptin to treat breast cancers with high levels of HER-2/neu. Here, we evaluated the effects of Herceptin alone and in combination with DIM on cell viability, apoptosis and clonogenic assays in SKBR3 (HER-2/neu-expressing) and MDA-MB-468 (HER-2/neu negative) breast cancer cells. We found that DIM could enhance the effectiveness of Herceptin by significantly reducing cell viability, which was associated with apoptosis-induction and significant inhibition of colony formation, compared with single agent treatment. These results were consistent with the down-regulation of Akt and NF-kB p65. Mechanistic investigations revealed a significant upregulation of miR-200 and reduction of FoxM1 expression in DIM and Herceptin-treated breast cancer cells. We, therefore, transfected cells with pre-miR-200 or silenced FoxM1 in these cells for understanding the molecular mechanism involved. These results provide experimental evidence, for the first time, that DIM plus Herceptin therapy could be translated to the clinic as a therapeutic modality to improve treatment outcome of patients with breast cancer, particularly for the patients whose tumors express high levels of HER-2/neu.

Indexed as

Antibodies, Monoclonal, HumanizedAntineoplastic AgentsApoptosisBreast NeoplasmsCell Line, TumorCell ProliferationDrug SynergismErb-b2 Receptor Tyrosine KinasesFemaleForkhead Box Protein M1Forkhead Transcription FactorsGene Expression Regulation, NeoplasticHumansIndolesMicroRNAsRNA Interference3,3'-diindolylmethaneAntibodies, Monoclonal, HumanizedAntineoplastic AgentsErb-b2 Receptor Tyrosine KinasesForkhead Box Protein M1Forkhead Transcription FactorsFOXM1 protein, humanIndolesMicroRNAsMIRN200 microRNA, humanRNA PrecursorsTrastuzumab

Identifiers

PMID23372748
PMCPMC3551844
OpenAlexW2057187294

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.