Evidence map›Paper›PMID 21145921›Full record

ArticleBiochimica et biophysica acta2011

Modulation of α(2C) adrenergic receptor temperature-sensitive trafficking by HSP90.

Catalin M Filipeanu, René de Vries, A H Jan Danser, Daniel R Kapusta

Open access · greenAbstract read
In one paragraph

Article in Biochimica et biophysica acta, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

17 citing papers in PubMed, 27 citations in OpenAlex.

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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 2 institutions in 2 countries.

Catalin M FilipeanuDepartment of Pharmacology and Experimental Therapeutics, Louisiana State University Health Sciences Center, 1901 Perdido Street, New Orleans, Louisiana, LA-70112, USA. cfilip@lsuhsc.edu
René de Vries
A H Jan Danser
Daniel R Kapusta
Erasmus MC · NLLouisiana State University Health Sciences Center New Orleans · US

Funding

VASCULAR SMOOTH MUSCLE PLASTICITY IN NITRIC OXIDEP20RR018766 · NCRR · LSU HEALTH SCIENCES CENTER · PI WORTHYLAKE, REBECCA · 2003 to 2011
$18.5M
NCRR NIH HHS P20 RR018766NCRR NIH HHS P20-RR-018766PHS HHS T32-301
6 · The paper itself

Abstract

Decreasing the temperature to 30°C is accompanied by significant enhancement of α(2C)-AR plasma membrane levels in several cell lines with fibroblast phenotype, as demonstrated by radioligand binding in intact cells. No changes were observed on the effects of low-temperature after blocking receptor internalization in α(2C)-AR transfected HEK293T cells. In contrast, two pharmacological chaperones, dimethyl sulfoxide and glycerol, increased the cell surface receptor levels at 37°C, but not at 30°C. Further, at 37°C α(2C)-AR is co-localized with endoplasmic reticulum markers, but not with the lysosomal markers. Treatment with three distinct HSP90 inhibitors, radicicol, macbecin and 17-DMAG significantly enhanced α(2C)-AR cell surface levels at 37°C, but these inhibitors had no effect at 30°C. Similar results were obtained after decreasing the HSP90 cellular levels using specific siRNA. Co-immunoprecipitation experiments demonstrated that α(2C)-AR interacts with HSP90 and this interaction is decreased at 30°C. The contractile response to endogenous α(2C)-AR stimulation in rat tail artery was also enhanced at reduced temperature. Similar to HEK293T cells, HSP90 inhibition increased the α(2C)-AR contractile effects only at 37°C. Moreover, exposure to low-temperature of vascular smooth muscle cells from rat tail artery decreased the cellular levels of HSP90, but did not change HSP70 levels. These data demonstrate that exposure to low-temperature augments the α(2C)-AR transport to the plasma membrane by releasing the inhibitory activity of HSP90 on the receptor traffic, findings which may have clinical relevance for the diagnostic and treatment of Raynaud Phenomenon.

Indexed as

AnimalsArteriesBenzoquinonesCell MembraneCells, CulturedEnzyme InhibitorsHSP90 Heat-Shock ProteinsHumansKidneyLactams, MacrocyclicMacrolidesMaleMuscle, Smooth, VascularProtein TransportProtein-Tyrosine KinasesRats17-(dimethylaminoethylamino)-17-demethoxygeldanamycinBenzoquinonesEnzyme InhibitorsHSP90 Heat-Shock ProteinsLactams, Macrocyclicmacbecin IMacrolidesmonordenProtein-Tyrosine KinasesReceptors, Adrenergic, alpha-2RNA, Small Interfering

Identifiers

PMID21145921
PMCPMC3148834
OpenAlexW2096488128

What OpenQuestion holds

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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.