Evidence map›Paper›PMID 11252727›Full record

ArticleEMBO reports2001

Regulation of intracellular trafficking of the EGF receptor by Rab5 in the absence of phosphatidylinositol 3-kinase activity.

X Chen, Z Wang

Open access · greenAbstract read
In one paragraph

Article in EMBO reports, 2001. 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
1.2field-weighted citation impact, top 23% 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, 49 citations in OpenAlex.

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  10. Effects of photodynamic therapy on the endocytic pathway.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2011
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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

2 authors at 1 institution in 1 country.

X ChenDepartment of Cell Biology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada.
Z Wang
University of Alberta · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rab5 and phosphatidylinositol 3-kinase (PI3K) have been proposed to co-regulate receptor endocytosis by controlling early endosome fusion. However, in this report we demonstrate that inhibition of epidermal growth factor (EGF)-stimulated PI3K activity by expression of the kinase-deficient PI3K p110 subunit (p110delta kin) does not block the lysosomal targeting and degradation of the EGF receptor (EGFR). Moreover, inhibition of total PI3K activity by wortmannin or LY294002 significantly enlarges EGFR-containing endosomes and dissociates the early-endosomal autoantigen EEA1 from membrane fractions. However, this does not block the lysosomal targeting and degradation of EGFR. In contrast, transfection of cells with mutant Rab5 S34N or microinjection of anti-Rabaptin5 antibodies inhibits EGFR endocytosis. Our results, therefore, demonstrate that PI3K is not universally required for the regulation of receptor intracellular trafficking. The present work suggests that the intracellular trafficking of EGFR is controlled by a novel endosome fusion pathway that is regulated by Rab5 in the absence of PI3K, rather than by the previously defined endosome fusion pathway that is co-regulated by Rab5 and PI3K.

Indexed as

Vesicular Transport ProteinsAndrostadienesAnimalsCell LineChromonesDogsEndocytosisEndosomesEnzyme InhibitorsEpidermal Growth FactorErbB ReceptorsFluorescent Antibody Technique, IndirectHumansImmunoblottingLysosomesMembrane Proteins2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneAndrostadienesChromonesEnzyme InhibitorsEpidermal Growth FactorErbB ReceptorsMembrane ProteinsMorpholinesPhosphatidylinositol 3-Kinasesrab5 GTP-Binding ProteinsRABEP1 protein, humanVesicular Transport ProteinsWortmannin

Identifiers

PMID11252727
PMCPMC1083802
OpenAlexW2163486441

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.