Evidence map›Paper›PMID 17071580›Full record

ArticleThe American journal of pathology2006

Growth regulation via insulin-like growth factor binding protein-4 and -2 in association with mutant K-ras in lung epithelia.

Hanako Sato, Takuya Yazawa, Takehisa Suzuki, Hiroaki Shimoyamada, Koji Okudela, Masaichi Ikeda, Kenji Hamada, Hisafumi Yamada-Okabe, Masayuki Yao, Yoshinobu Kubota and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

18 citing papers in PubMed, 85 citations in OpenAlex.

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  9. New insights into estrogenic regulation ofJournal of biomedical research · 2016
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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

13 authors at 3 institutions in 1 country.

Hanako SatoDepartment of Pathobiology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanagawa, Japan.
Takuya Yazawa
Takehisa Suzuki
Hiroaki Shimoyamada
Koji Okudela
Masaichi Ikeda
Kenji Hamada
Hisafumi Yamada-Okabe
Masayuki Yao
Yoshinobu Kubota
Takashi Takahashi
Hiroshi Kamma
Hitoshi Kitamura
Yokohama City University · JPKyorin University · JPNagoya University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gain-of-function point mutations in K-ras affect early events in pulmonary bronchioloalveolar carcinoma. We investigated altered mRNA expression on K-Ras activation in human peripheral lung epithelial cells (HPL1A) using oligonucleotide microarrays. Mutated K-Ras stably expressed in HPL1A accelerated cell growth and induced the expression of insulin-like growth factor (IGF)-binding protein (IGFBP)-4 and IGFBP-2, which modulate cell growth via IGF. Other lung epithelial cell lines (NHBE and HPL1D) revealed the same phenomena as HPL1A by mutated K-ras transgene. Lung cancer cell growth was also accelerated by mutated K-ras gene transduction, whereas IGFBP-4/2 induction was weaker compared with mutated K-Ras-expressing lung epithelial cells. To understand the differences in IGFBP-4/2 inducibility via K-Ras-activated signaling between nonneoplastic lung epithelia and lung carcinoma, we addressed the mechanisms of IGFBP-4/2 transcriptional activation. Our results revealed that Egr-1, which is induced on activation of Ras-mitogen-activated protein kinase signaling, is crucial for transactivation of IGFBP-4/2. Furthermore, IGFBP-4 and IGFBP-2 promoters were often hypermethylated in lung carcinoma, yielding low basal expression/weak induction of IGFBP-4/2. These findings suggest that continuous K-Ras activation accelerates cell growth and evokes a feedback system through IGFBP-4/2 to prevent excessive growth. Moreover, this growth regulation is disrupted in lung cancers because of promoter hypermethylation of IGFBP-4/2 genes.

Indexed as

Cell Growth ProcessesAdenocarcinomaDNA MethylationEarly Growth Response Protein 1Epithelial CellsGene ExpressionGene Expression RegulationGenes, rasHumansInsulin-Like Growth Factor Binding Protein 2Insulin-Like Growth Factor Binding Protein 4LungMitogen-Activated Protein KinasesPhosphorylationPoint MutationPromoter Regions, GeneticEarly Growth Response Protein 1Insulin-Like Growth Factor Binding Protein 2Insulin-Like Growth Factor Binding Protein 4Mitogen-Activated Protein KinasesRNA, Messenger

Identifiers

PMID17071580
PMCPMC1780191
OpenAlexW1981206419

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.