Evidence map›Paper›PMID 25893305›Full record

ArticleOncogene2016

Smad4 loss promotes lung cancer formation but increases sensitivity to DNA topoisomerase inhibitors.

Sarah M Haeger, Joshua J Thompson, Sean Kalra, Timothy G Cleaver, Daniel Merrick, Xiao-Jing Wang, Stephen P Malkoski

Open access · bronzeAbstract read
In one paragraph

Article in Oncogene, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.3field-weighted citation impact, top 10% 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

26 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. HPV-mediated regulation of SMAD4 modulates the DNA damage response in head and neck cancer.Journal of experimental & clinical cancer research : CR · 2022
    Article
  5. Article
  6. Article
  7. Observational
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Bioscience reports · 2019
    Article
  17. Article
  18. Frontiers in oncology · 2019
    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

7 authors at 2 institutions in 1 country.

Sarah M Haeger *Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Denver Anschutz Medical Campus, Aurora, CO.
Joshua J Thompson *Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Denver Anschutz Medical Campus, Aurora, CO.
Sean KalraDivision of Pulmonary Sciences and Critical Care Medicine, University of Colorado Denver Anschutz Medical Campus, Aurora, CO.
Timothy G CleaverDivision of Pulmonary Sciences and Critical Care Medicine, University of Colorado Denver Anschutz Medical Campus, Aurora, CO.
Daniel MerrickDepartment of Pathology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO.
Xiao-Jing WangDepartment of Pathology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO.
Stephen P MalkoskiDivision of Pulmonary Sciences and Critical Care Medicine, University of Colorado Denver Anschutz Medical Campus, Aurora, CO.
University of Colorado Denver · USUniversity of Colorado Anschutz Medical Campus · US

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
Understanding the origins of rapid recurrence of pancreatic cancer after resectionP30CA069533 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Luiz Eduardo Bertassoni · 1997 to 2026
$60.5M
Tissue Bank and Biomarkers CoreP50CA058187 · NCI · UNIVERSITY OF COLORADO DENVER · PI MILLER, YORK E · 1992 to 2018
$43.8M
PREDOCTORAL TRAINING PROGRAM IN PHARMACOLOGYT32GM007635 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI DELL'ACQUA, MARK L · 1985 to 2023
$6.1M
Role of TGFbeta signaling in HNSCC progressionR01DE015953 · NIDCR · UNIVERSITY OF COLORADO DENVER · PI WANG, XIAO-JING · 2004 to 2014
$3.6M
TGFbeta and lung squamous cell carcinomaK08CA131483 · NCI · UNIVERSITY OF COLORADO DENVER · PI MALKOSKI, STEPHEN P · 2008 to 2012
$685k
Targeting defective DNA pathways in Smad4 deficient lung cancerR21CA194662 · NCI · UNIVERSITY OF COLORADO DENVER · PI MALKOSKI, STEPHEN P · 2015 to 2016
$372k
NCI NIH HHS K08 CA131483NCI NIH HHS P30 CA046934NCI NIH HHS P30 CA069533NCI NIH HHS P50 CA058187NCI NIH HHS P50CA058187NCI NIH HHS R21 CA194662NIDCR NIH HHS R01 DE015953NIDCR NIH HHS R01DE015953NIGMS NIH HHS T32 GM007635
6 · The paper itself

Abstract

Non-small-cell lung cancer (NSCLC) is a common malignancy with a poor prognosis. Despite progress targeting oncogenic drivers, there are no therapies targeting tumor-suppressor loss. Smad4 is an established tumor suppressor in pancreatic and colon cancer; however, the consequences of Smad4 loss in lung cancer are largely unknown. We evaluated Smad4 expression in human NSCLC samples and examined Smad4 alterations in large NSCLC data sets and found that reduced Smad4 expression is common in human NSCLC and occurs through a variety of mechanisms, including mutation, homozygous deletion and heterozygous loss. We modeled Smad4 loss in lung cancer by deleting Smad4 in airway epithelial cells and found that Smad4 deletion both initiates and promotes lung tumor development. Interestingly, both Smad4(-/-) mouse tumors and human NSCLC samples with reduced Smad4 expression demonstrated increased DNA damage, whereas Smad4 knockdown in lung cancer cells reduced DNA repair and increased apoptosis after DNA damage. In addition, Smad4-deficient NSCLC cells demonstrated increased sensitivity to both chemotherapeutics that inhibit DNA topoisomerase and drugs that block double-strand DNA break repair by non-homologous end joining. In sum, these studies establish Smad4 as a lung tumor suppressor and suggest that the defective DNA repair phenotype of Smad4-deficient tumors can be exploited by specific therapeutic strategies.

Indexed as

AnimalsCarcinoma, Non-Small-Cell LungDNA RepairGene Knockdown TechniquesHumansLung NeoplasmsMiceSmad4 ProteinTopoisomerase InhibitorsSmad4 ProteinSMAD4 protein, humanSmad4 protein, mouseTopoisomerase Inhibitors

Identifiers

PMID25893305
PMCPMC4615192
OpenAlexW1998612778

What OpenQuestion holds

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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.