Evidence map›Paper›PMID 25573956›Full record

ArticleMolecular cancer therapeutics2015

Inhibition of p70S6K1 Activation by Pdcd4 Overcomes the Resistance to an IGF-1R/IR Inhibitor in Colon Carcinoma Cells.

Yan Zhang, Qing Wang, Li Chen, Hsin-Sheng Yang

Open access · greenAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.1field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
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  8. The Impact of Pdcd4, a Translation Inhibitor, on Drug Resistance.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  9. Article
  10. Review
  11. Article
  12. Ribosomal Protein S6: A Potential Therapeutic Target against Cancer?International journal of molecular sciences · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Article
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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

4 authors at 1 institution in 1 country.

Yan ZhangDepartment of Cancer Biology and Toxicology, College of Medicine, University of Kentucky, Lexington, Kentucky.
Qing WangDepartment of Cancer Biology and Toxicology, College of Medicine, University of Kentucky, Lexington, Kentucky.
Li ChenDepartment of Biostatistics, College of Public Health, University of Kentucky, Lexington, Kentucky. Markey Cancer Center, College of medicine, University of Kentucky, Lexington, Kentucky.
Hsin-Sheng YangDepartment of Cancer Biology and Toxicology, College of Medicine, University of Kentucky, Lexington, Kentucky. Markey Cancer Center, College of medicine, University of Kentucky, Lexington, Kentucky. hyang3@uky.edu.
University of Kentucky · US

Funding

University of Kentucky Markey Cancer Center Support Grant ECIA SupplementP30CA177558 · NCI · UNIVERSITY OF KENTUCKY · PI KATHLEEN L. O'CONNOR · 2013 to 2026
$38.3M
Kentucky Center for Clinical and Translational ScienceUL1TR000117 · NCATS · UNIVERSITY OF KENTUCKY · PI KERN, PHILIP A · 2012 to 2015
$13.3M
The role of Pdcd4 in colorectal tumor progressionR01CA129015 · NCI · UNIVERSITY OF KENTUCKY · PI YANG, HSIN-SHENG · 2009 to 2013
$1.5M
NCATS NIH HHS UL1 TR000117NCATS NIH HHS UL1TR000117NCI NIH HHS P30 CA177558NCI NIH HHS P30CA177558NCI NIH HHS R01 CA129015NCI NIH HHS R01CA129015
6 · The paper itself

Abstract

Agents targeting insulin-like growth factor 1 receptor (IGF-1R) are being actively examined in clinical trials. Although there has been some initial success of single-agent targeting IGF-1R, attempts in later studies failed because of resistance. This study aimed to understand the effects of programmed cell death 4 (Pdcd4) on the chemosensitivity of the IGF-1R inhibitor OSI-906 in colorectal cancer cells and the mechanism underlying this impact. Using OSI-906-resistant and -sensitive colorectal cancer cells, we found that the Pdcd4 level directly correlates with cell chemosensitivity to OSI-906. In addition, tumors derived from Pdcd4 knockdown cells resist the growth inhibitory effect of OSI-906 in a colorectal cancer xenograft mouse model. Moreover, Pdcd4 enhances the antiproliferative effect of OSI-906 in resistant cells through suppression of p70S6K1 activation. Knockdown of p70S6K1, but not p70S6K2, significantly increases the chemosensitivity of OSI-906 in cultured colorectal cancer cells. Furthermore, the combination of OSI-906 and PF-4708671, a p70S6K1 inhibitor, efficiently suppresses the growth of OSI-906-resistant colon tumor cells in vitro and in vivo. Taken together, activation of p70S6K1 that is inhibited by Pdcd4 is essential for resistance to the IGF-1R inhibitor in colon tumor cells, and the combinational treatment of OSI-906 and PF-4708671 results in enhanced antiproliferation effects in colorectal cancer cells in vitro and in vivo, providing a novel venue to overcome the resistance to the IGF-1R inhibitor in treating colorectal cancer.

Indexed as

AnimalsApoptosis Regulatory ProteinsCaco-2 CellsCarcinomaCell Line, TumorCell ProliferationColorectal NeoplasmsDrug Resistance, NeoplasmFemaleHCT116 CellsHT29 CellsHumansImidazolesMiceMice, NudePiperazines3-(8-amino-1-(2-phenylquinolin-7-yl)imidazo(1,5-a)pyrazin-3-yl)-1-methylcyclobutanolApoptosis Regulatory ProteinsImidazolesPDCD4 protein, humanPF-4708671PiperazinesProtein Kinase InhibitorsPyrazinesReceptor, IGF Type 1Ribosomal Protein S6 Kinases, 70-kDaRNA-Binding Proteins

Identifiers

PMID25573956
PMCPMC4456303
OpenAlexW2105069694

What OpenQuestion holds

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Registered trials

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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.