Evidence map›Paper›PMID 17540703›Full record

ArticleThe Journal of physiology2007

Rate, extent and concentration dependence of histamine-evoked Weibel-Palade body exocytosis determined from individual fusion events in human endothelial cells.

M Erent, A Meli, N Moisoi, V Babich, M J Hannah, P Skehel, L Knipe, G Zupancic, D Ogden, T Carter

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
1.4field-weighted citation impact, top 22% 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

52 citing papers in PubMed, 80 citations in OpenAlex.

  1. Development of a Photostable pH Biosensor Based on mStayGold.Chembiochem : a European journal of chemical biology · 2026
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  7. Pathophysiology of deep vein thrombosis.Clinical and experimental medicine · 2023
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  10. Tip-end fusion of a rod-shaped secretory organelle.Cellular and molecular life sciences : CMLS · 2022
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  15. Article
  16. Review
  17. Rab46 integrates CaThe Journal of cell biology · 2019
    Article
  18. Article
  19. Synaptotagmin 5 regulates CaJournal of cell science · 2019
    Article
  20. Exocytosis of Weibel-Palade bodies: how to unpack a vascular emergency kit.Journal of thrombosis and haemostasis : JTH · 2019
    Review
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 3 institutions in 2 countries.

M ErentMedical Research Councils National Institute for Medical Research, Mill Hill, London NW7 1AA, UK.
A Meli
N Moisoi
V Babich
M J Hannah
P Skehel
L Knipe
G Zupancic
D Ogden
T Carter
Medical Research Council · GBUniversity of Edinburgh · GBUniversity of Ljubljana · SI

Funding

Medical Research Council MC_U117570589Medical Research Council MC_U117573808
6 · The paper itself

Abstract

The rate, concentration dependence and extent of histamine-evoked Weibel-Palade body (WPB) exocytosis were investigated with time-resolved fluorescence microscopy in cultured human umbilical vein endothelial cells expressing WPB-targeted chimeras of enhanced green fluorescent protein (EGFP). Exocytosis of single WPBs was characterized by an increase in EGFP fluorescence, morphological changes and release of WPB contents. The fluorescence increase was due to a rise of intra-WPB pH from resting levels, estimated as pH 5.45+/-0.26 (s.d., n=144), to pH 7.40. It coincided with uptake of extracellular Alexa-647, indicating the formation of a fusion pore, prior to loss of fluorescent contents. Delays between the increase in intracellular free calcium ion concentration evoked by histamine and the first fusion event were 10.0+/-4.42 s (n=9 cells) at 0.3 microM histamine and 1.57+/-0.21 s (n=15 cells) at 100 microM histamine, indicating the existence of a slow process or processes in histamine-evoked WPB exocytosis. The maximum rates of exocytosis were 1.20+/-0.16 WPB s(-1) (n=9) at 0.3 microM and 3.66+/-0.45 WPB s(-1) at 100 microM histamine (n=15). These occurred 2-5 s after histamine addition and declined to lower rates with continued stimulation. The initial delays and maximal rate of exocytosis were unaffected by removal of external Ca2+ indicating that the initial burst of secretion is driven by Ca2+ release from internal stores, but sustained exocytosis required external Ca2+. Data were compared to exocytosis evoked by a maximal concentration of the strong secretagogue ionomycin (1 microM), for which there was a delay between calcium elevation and secretion of 1.67+/-0.24 s (n=6), and a peak fusion rate of approximately 10 WPB s(-1).

Indexed as

CalciumCells, CulturedCyclic AMPDose-Response Relationship, DrugEndothelium, VascularExocytosisGreen Fluorescent ProteinsHistamineHumansHydrogen-Ion ConcentrationIonomycinIonophoresPatch-Clamp TechniquesTime Factorsvon Willebrand FactorWeibel-Palade Bodies8-aminohexylamino cAMPCalciumCyclic AMPGreen Fluorescent ProteinsHistamineIonomycinIonophoresvon Willebrand Factor

Identifiers

PMID17540703
PMCPMC2277235
OpenAlexW1513179886

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.