Evidence map›Paper›PMID 22269172›Full record

ArticleBMC gastroenterology2012

Luteolin decreases IGF-II production and downregulates insulin-like growth factor-I receptor signaling in HT-29 human colon cancer cells.

Do Young Lim, Han Jin Cho, Jongdai Kim, Chu Won Nho, Ki Won Lee, Jung Han Yoon Park

Open access · goldAbstract read
In one paragraph

Article in BMC gastroenterology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 57 citations in OpenAlex.

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  5. Efficacy of luteolin on the human gastric cancer cell line MKN45 and underlying mechanism.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2023
    Article
  6. Natural Polyphenols for Treatment of Colorectal Cancer.Molecules (Basel, Switzerland) · 2022
    Review
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  12. Incorporation of natural assumption to deal with cancer.Environmental science and pollution research international · 2021
    Review
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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

6 authors at 4 institutions in 1 country.

Do Young LimDepartment of Food Science and Nutrition, Hallym University, Chuncheon 200-702, Korea.
Han Jin Cho
Jongdai Kim
Chu Won Nho
Ki Won Lee
Jung Han Yoon Park
Hallym University · KRKangwon National University · KRKorea Institute of Science and Technology · KRSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLuteolin is a 3',4',5,7-tetrahydroxyflavone found in various fruits and vegetables. We have shown previously that luteolin reduces HT-29 cell growth by inducing apoptosis and cell cycle arrest. The objective of this study was to examine whether luteolin downregulates the insulin-like growth factor-I receptor (IGF-IR) signaling pathway in HT-29 cells.

methodsIn order to assess the effects of luteolin and/or IGF-I on the IGF-IR signaling pathway, cells were cultured with or without 60 μmol/L luteolin and/or 10 nmol/L IGF-I. Cell proliferation, DNA synthesis, and IGF-IR mRNA levels were evaluated by a cell viability assay, [3H]thymidine incorporation assays, and real-time polymerase chain reaction, respectively. Western blot analyses, immunoprecipitation, and in vitro kinase assays were conducted to evaluate the secretion of IGF-II, the protein expression and activation of IGF-IR, and the association of the p85 subunit of phophatidylinositol-3 kinase (PI3K) with IGF-IR, the phosphorylation of Akt and extracellular signal-regulated kinase (ERK)1/2, and cell division cycle 25c (CDC25c), and PI3K activity.

resultsLuteolin (0 - 60 μmol/L) dose-dependently reduced the IGF-II secretion of HT-29 cells. IGF-I stimulated HT-29 cell growth but did not abrogate luteolin-induced growth inhibition. Luteolin reduced the levels of the IGF-IR precursor protein and IGF-IR transcripts. Luteolin reduced the IGF-I-induced tyrosine phosphorylation of IGF-IR and the association of p85 with IGF-IR. Additionally, luteolin inhibited the activity of PI3K activity as well as the phosphorylation of Akt, ERK1/2, and CDC25c in the presence and absence of IGF-I stimulation.

conclusionsThe present results demonstrate that luteolin downregulates the activation of the PI3K/Akt and ERK1/2 pathways via a reduction in IGF-IR signaling in HT-29 cells; this may be one of the mechanisms responsible for the observed luteolin-induced apoptosis and cell cycle arrest.

Indexed as

AdenocarcinomaApoptosisCell Line, TumorCell ProliferationColonic NeoplasmsDose-Response Relationship, DrugDown-RegulationHumansInsulin-Like Growth Factor IInsulin-Like Growth Factor IILuteolinMAP Kinase Signaling SystemPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReceptor, IGF Type 1Signal TransductionInsulin-Like Growth Factor IInsulin-Like Growth Factor IILuteolinPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReceptor, IGF Type 1

Identifiers

PMID22269172
PMCPMC3298530
OpenAlexW2164050810

What Socratic 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 Socratic graph.