Evidence map›Paper›PMID 26296946›Full record

ArticleCancer science2015

Transforming growth factor-β signaling enhancement by long-term exposure to hypoxia in a tumor microenvironment composed of Lewis lung carcinoma cells.

Chiaki Furuta, Tatsuki Miyamoto, Takahiro Takagi, Yuri Noguchi, Jyunya Kaneko, Susumu Itoh, Takuya Watanabe, Fumiko Itoh

Open access · goldAbstract read
In one paragraph

Article in Cancer science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
0.7field-weighted citation impact, top 31% 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

29 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Pmel17 Deficiency Affects Melanogenesis and Promotes Tumor Vascularization.International journal of molecular sciences · 2026
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  5. Non-small cell lung cancer map and analysis: exploring interconnected oncogenic signal integrators.Mammalian genome : official journal of the International Mammalian Genome Society · 2025
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Cell-Type Dependent Regulation of the Electrogenic NaInternational journal of molecular sciences · 2022
    Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  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

8 authors at 2 institutions in 1 country.

Chiaki FurutaLaboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan.
Tatsuki MiyamotoLaboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan.
Takahiro TakagiLaboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan.
Yuri NoguchiLaboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan.
Jyunya KanekoLaboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan.
Susumu ItohLaboratory of Biochemistry, Showa Pharmaceutical University, Machida, Tokyo, Japan.
Takuya WatanabeLaboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan.
Fumiko ItohLaboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan.
Tokyo University of Pharmacy and Life Sciences · JPShowa Pharmaceutical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Transforming growth factor-β (TGF-β) is a potent growth inhibitor in normal epithelial cells. However, a number of malignant tumors produce excessive amounts of TGF-β, which affects the tumor-associated microenvironment by furthering the progression of tumorigenicity. Although it is known that the tumor-associated microenvironment often becomes hypoxic, how hypoxia influences TGF-β signaling in this microenvironment is unknown. We investigated whether TGF-β signaling is influenced by long-term exposure to hypoxia in Lewis lung carcinoma (LLC) cells. When the cells were exposed to hypoxia for more than 10 days, their morphology was remarkably changed to a spindle shape, and TGF-β-induced Smad2 phosphorylation was enhanced. Concomitantly, TGF-β-induced transcriptional activity was augmented under hypoxia, although TGF-β did not influence the activity of a hypoxia-responsive reporter. Consistently, hypoxia influenced the expression of several TGF-β target genes. Interestingly, the expressions of TGF-β type I receptor (TβRI), also termed activin receptor like kinase-5 (ALK5), and TGF-β1 were increased under the hypoxic condition. When we monitored the hypoxia-inducible factor-1 (HIF-1) transcriptional activity by use of green fluorescent protein governed by the hypoxia-responsive element in LLC cells transplanted into mice, TGF-β-induced Smad2 phosphorylation was upregulated in vivo. Our results demonstrate that long-term exposure to hypoxia might alter responsiveness to TGF-β signaling and affected the malignancy of LLC cells.

Indexed as

AnimalsBlotting, WesternCarcinoma, Lewis LungCell HypoxiaEnzyme-Linked Immunosorbent AssayFluorescent Antibody TechniqueImmunoprecipitationMiceReverse Transcriptase Polymerase Chain ReactionSignal TransductionTransforming Growth Factor betaTumor MicroenvironmentTransforming Growth Factor betaHypoxiaLewis lung carcinomaSmadtransforming growth factor-βtumor microenvironment

Identifiers

PMID26296946
PMCPMC4714699
OpenAlexW2146599053

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.