Evidence map›Paper›PMID 17146438›Full record

ArticleOncogene2007

Role of epidermal growth factor receptor degradation in gemcitabine-mediated cytotoxicity.

F Y Feng, S Varambally, S A Tomlins, P Y Chun, C A Lopez, X Li, M A Davis, A M Chinnaiyan, T S Lawrence, M K Nyati

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

35 citing papers in PubMed, 71 citations in OpenAlex.

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  7. Glycerol kinase 5 confers gefitinib resistance through SREBP1/SCD1 signaling pathway.Journal of experimental & clinical cancer research : CR · 2019
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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

10 authors at 1 institution in 1 country.

F Y FengDepartment of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, MI 48109, USA.
S Varambally
S A Tomlins
P Y Chun
C A Lopez
X Li
M A Davis
A M Chinnaiyan
T S Lawrence
M K Nyati
University of Michigan–Ann Arbor · US

Funding

XenograftP30CA046592 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI THEODORE S LAWRENCE · 1988 to 2026
$178.2M
Therapeutic Potential and Mechanism of Action of Potent Small Molecule InhibitorsP50CA097248 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WOLF, GREGORY T · 2002 to 2013
$25.3M
NCI NIH HHS 1 P50 CA97248NCI NIH HHS 5 P30 CA46592NCI NIH HHS P50 CA097248
6 · The paper itself

Abstract

We have recently reported that treatment with gemcitabine, a potent chemotherapeutic agent and radiation sensitizer, stimulates phosphorylation of the epidermal growth factor receptor (EGFR). Because phosphorylation of EGFR is known to precede receptor degradation, we hypothesized that gemcitabine treatment may also result in EGFR degradation. In two human head and neck cancer cell lines, UMSCC-1 and UMSCC-6, we demonstrated an approximately 80% decrease in total EGFR levels at 72 h after a 2-h treatment with 1 muM gemcitabine. Neither cisplatin nor 5-fluorouracil, which are used to treat head and neck cancer, caused EGFR degradation. EGFR downregulation did not occur at the level of transcription, as assessed by reverse transcription-polymerase chain reaction (RT-PCR), but instead occurred via phosphorylation and ubiquitination of the receptor along a proteosome/lysosome-mediated pathway. Inhibition of EGFR degradation, by either pretreatment with the EGFR tyrosine kinase inhibitor gefitinib or by exposure to the proteosome/lysosome inhibitor MG132, significantly reduced gemcitabine-induced cell death. These results suggest that EGFR degradation may be a novel mechanism for gemcitabine-mediated cell death. These findings also indicate that caution should be exercised when combining gemcitabine with agents that may prevent EGFR degradation, such as EGFR tyrosine kinase inhibitors administered in a suboptimal sequence or proteosome inhibitors.

Indexed as

ApoptosisCaspase InhibitorsCaspasesCell Line, TumorCytotoxinsDeoxycytidineDown-RegulationErbB ReceptorsExtracellular Signal-Regulated MAP KinasesGemcitabineHumansLysosomesPhosphorylationProteasome Endopeptidase ComplexProtein Processing, Post-TranslationalRNA, MessengerCaspase InhibitorsCaspasesCytotoxinsDeoxycytidineErbB ReceptorsExtracellular Signal-Regulated MAP KinasesGemcitabineProteasome Endopeptidase ComplexRNA, MessengerUbiquitin

Identifiers

PMID17146438
OpenAlexW2083215308

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.