Evidence map›Paper›PMID 22903848›Full record

ArticleHistochemistry and cell biology2013

Sorting of the FGF receptor 1 in a human glioma cell line.

Regina Irschick, Tobias Trost, Georg Karp, Barbara Hausott, Maria Auer, Peter Claus, Lars Klimaschewski

Abstract read
PubMed Publisher
In one paragraph

Article in Histochemistry and cell biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Review
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  11. Receptor tyrosine kinases endocytosis in endothelium: biology and signaling.Arteriosclerosis, thrombosis, and vascular biology · 2014
    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

7 authors at 2 institutions in 2 countries.

Regina IrschickDivision of Neuroanatomy, Medical University Innsbruck, Muellerstrasse 59, 6020 Innsbruck, Austria.
Tobias Trost
Georg Karp
Barbara Hausott
Maria Auer
Peter Claus
Lars Klimaschewski
Innsbruck Medical University · ATMedizinische Hochschule Hannover · DE

Funding

Austrian Science Fund FWF W 1206
6 · The paper itself

Abstract

Fibroblast growth factor receptor 1 (FGFR1) is a receptor tyrosine kinase promoting tumor growth in a variety of cancers, including glioblastoma. Binding of FGFs triggers the intracellular Ras/Raf/ERK signaling pathway leading to cell proliferation. Down-regulation of FGFR1 and, consequently, inactivation of its signaling pathways represent novel treatment strategies for glioblastoma. In this study, we investigated the internalization and endocytic trafficking of FGFR1 in the human glioma cell line U373. Stimulation with FGF-2 induced cell rounding accompanied by increased BrdU and pERK labeling. The overexpression of FGFR1 (without FGF treatment) resulted in enhanced phosphorylated FGFR1 suggesting receptor autoactivation. Labeled ligand (FGF-2-Cy5.5) was endocytosed in a clathrin- and caveolin-dependent manner. About 25 % of vesicles carrying fluorescently tagged FGFR1 represented early endosomes, 15 % transferrin-positive recycling endosomes and 40 % Lamp1-positive late endosomal/lysosomal vesicles. Stimulation with FGF-2 increased the colocalization rate in each of these vesicle populations. The treatment with the lysosomal inhibitor leupeptin resulted in FGFR1 accumulation in lysosomes, but did not enhance receptor recycling as observed in neurons. Analysis of vesicle distributions revealed an accumulation of recycling endosomes in the perinuclear region. In conclusion, the shuttling of receptor tyrosine kinases can be directly visualized by overexpression of fluorescently tagged receptors which respond to ligand stimulation and follow the recycling and degradation pathways similarly to their endogenous counterparts.

Indexed as

CaveolinsCell Line, TumorCell ShapeClathrinEndocytosisEndosomesExtracellular Signal-Regulated MAP KinasesFibroblast Growth Factor 2GliomaHumansLeupeptinsLigandsLuminescent ProteinsLysosomal-Associated Membrane Protein 1Lysosomal Membrane ProteinsLysosomesCaveolinsClathrinExtracellular Signal-Regulated MAP KinasesFGFR1 protein, humanFibroblast Growth Factor 2LAMP1 protein, humanleupeptinLeupeptinsLigandsLuminescent ProteinsLysosomal-Associated Membrane Protein 1Lysosomal Membrane ProteinsReceptor, Fibroblast Growth Factor, Type 1

Identifiers

PMID22903848
OpenAlexW2064713432

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.