Evidence map›Paper›PMID 22751465›Full record

ArticleCancer research2012

Mithramycin represses basal and cigarette smoke-induced expression of ABCG2 and inhibits stem cell signaling in lung and esophageal cancer cells.

Mary Zhang, Aarti Mathur, Yuwei Zhang, Sichuan Xi, Scott Atay, Julie A Hong, Nicole Datrice, Trevor Upham, Clinton D Kemp, R Taylor Ripley and 10 more

Open access · greenAbstract read
In one paragraph

Article in Cancer research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
5.3field-weighted citation impact, top 3% 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

54 citing papers in PubMed, 98 citations in OpenAlex.

  1. Esophageal cancer: from pathogenesis to precision therapies.Signal transduction and targeted therapy · 2026
    Review
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  10. Progress of Cancer Stem Cells in Retinoblastoma.Current stem cell research & therapy · 2024
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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

20 authors at 4 institutions in 1 country.

Mary ZhangThoracic Oncology Section, Surgery Branch, Laboratory of Pathology, Clinical Pharmacy Department, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, USA.
Aarti Mathur
Yuwei Zhang
Sichuan Xi
Scott Atay
Julie A Hong
Nicole Datrice
Trevor Upham
Clinton D Kemp
R Taylor Ripley
Gordon Wiegand
Itzak Avital
Patricia Fetsch
Haresh Mani
Daniel Zlott
Robert Robey
Susan E Bates
Xinmin Li
Mahadev Rao
David S Schrump
Pennsylvania State University · USNational Cancer Institute · USUniversity of California, Los Angeles · USCenter for Cancer Research · US

Funding

Cytopathology CoreZICBC011052 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI FILIE, ARMANDO · 2009 to 2025
$30.8M
Modulating Cancer Stem Cell Signaling in Thoracic MalignanciesZIABC011418 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SCHRUMP, DAVID · 2011 to 2025
$17.4M
Investigation of the ABC Half-Transporter ABCG2ZIABC010622 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI BATES, SUSAN · 2009 to 2015
$2.3M
Intramural NIH HHS Z99 CA999999
6 · The paper itself

Abstract

Cigarette smoking at diagnosis or during therapy correlates with poor outcome in patients with lung and esophageal cancers, yet the underlying mechanisms remain unknown. In this study, we observed that exposure of esophageal cancer cells to cigarette smoke condensate (CSC) led to upregulation of the xenobiotic pump ABCG2, which is expressed in cancer stem cells and confers treatment resistance in lung and esophageal carcinomas. Furthermore, CSC increased the side population of lung cancer cells containing cancer stem cells. Upregulation of ABCG2 coincided with increased occupancy of aryl hydrocarbon receptor, Sp1, and Nrf2 within the ABCG2 promoter, and deletion of xenobiotic response elements and/or Sp1 sites markedly attenuated ABCG2 induction. Under conditions potentially achievable in clinical settings, mithramycin diminished basal as well as CSC-mediated increases in AhR, Sp1, and Nrf2 levels within the ABCG2 promoter, markedly downregulated ABCG2, and inhibited proliferation and tumorigenicity of lung and esophageal cancer cells. Microarray analyses revealed that mithramycin targeted multiple stem cell-related pathways in vitro and in vivo. Collectively, our findings provide a potential mechanistic link between smoking status and outcome of patients with lung and esophageal cancers, and support clinical use of mithramycin for repressing ABCG2 and inhibiting stem cell signaling in thoracic malignancies.

Indexed as

AdenocarcinomaAnimalsAntibiotics, AntineoplasticATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Esophageal NeoplasmsHumansLung NeoplasmsMiceMice, NudeNeoplasm ProteinsNeoplastic Stem CellsPlicamycinSignal TransductionSmokeTobacco ProductsABCG2 protein, humanAntibiotics, AntineoplasticATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Neoplasm ProteinsPlicamycinSmoke

Identifiers

PMID22751465
PMCPMC6261440
OpenAlexW2154857845

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.