Evidence map›Paper›PMID 22397623›Full record

ArticleThe journal of physical chemistry. B2012

Quantitative nanoscale analysis of IgE-FcεRI clustering and coupling to early signaling proteins.

Sarah L Veatch, Ethan N Chiang, Prabuddha Sengupta, David A Holowka, Barbara A Baird

Open access · greenAbstract read
In one paragraph

Article in The journal of physical chemistry. B, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. Phase separation in immune signalling.Nature reviews. Immunology · 2022
    Review
  4. Review
  5. Article
  6. Article
  7. Thy-1, a Pathfinder Protein for the Post-genomic Era.Frontiers in cell and developmental biology · 2018
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article
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

5 authors at 1 institution in 1 country.

Sarah L VeatchDepartment of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, USA.
Ethan N Chiang
Prabuddha Sengupta
David A Holowka
Barbara A Baird
Cornell University · US

Funding

STUCTURE-FUNCTION RELATIONSHIPS OF IMMUNORECEPTORSR01AI018306 · NIAID · CORNELL UNIVERSITY ITHACA · PI BAIRD, BARBARA A · 1985 to 2014
$5.3M
BIOPHYSICAL AND BIOCHEMICAL PHARMACOLOGYT32GM008210 · NIGMS · CORNELL UNIVERSITY ITHACA · PI SHARP, GEOFFREY W · 1988 to 2007
$1.3M
Mechanistic studies of membrane lateral organization in cell plasma membranes.R00GM087810 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI VEATCH, SARAH L · 2010 to 2012
$742k
Mechanistic studies of membrane lateral organization in cell plasma membranes.K99GM087810 · NIGMS · CORNELL UNIVERSITY · PI VEATCH, SARAH L · 2009 to 2010
$127k
NIAID NIH HHS R01 AI018306NIAID NIH HHS R01-AI018306NIGMS NIH HHS K99 GM087810NIGMS NIH HHS K99GM087810NIGMS NIH HHS R00 GM087810NIGMS NIH HHS T32 GM008210NIGMS NIH HHS T32-GM08210
6 · The paper itself

Abstract

Antigen-mediated cross-linking of IgE bound to its receptor, FcεRI, initiates a transmembrane signaling cascade that results in mast cell activation in the allergic response. Using immunogold labeling of intact RBL mast cells and scanning electron microscopy (SEM), we visualize molecular reorganization of IgE-FcεRI and early signaling proteins on both leaflets of the plasma membrane, without the need for ripped off membrane sheets. As quantified by pair correlation analysis, we observe dramatic changes in the nanoscale distribution of IgE-FcεRI after binding of multivalent antigen to stimulate transmembrane signaling, and this is accompanied by similar clustering of Lyn and Syk tyrosine kinases, and adaptor protein LAT. We find that Lyn co-redistributes with IgE-FcεRI into clusters that cross-correlate throughout 20 min of stimulation. Inhibition of tyrosine kinase activity reduces the numbers of both IgE-FcεRI and Lyn in stimulated clusters. Coupling of these proteins is also decreased when membrane cholesterol is reduced either before or after antigen addition. These results provide evidence for involvement of FcεRI phosphorylation and cholesterol-dependent membrane structure in the interactions that accompany IgE-mediated activation of RBL mast cells. More generally, this SEM view of intact cell surfaces provides new insights into the nanoscale organization of receptor-mediated signaling complexes in the plasma membrane.

Indexed as

NanotechnologySignal TransductionAnimalsImmunoglobulin EMicroscopy, Electron, ScanningRatsReceptors, IgETumor Cells, CulturedImmunoglobulin EReceptors, IgE

Identifiers

PMID22397623
PMCPMC3376227
OpenAlexW2061527254

What OpenQuestion holds

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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.