Evidence map›Paper›PMID 14657242›Full record

ArticleMolecular biology of the cell2004

Clustering induces a lateral redistribution of alpha 2 beta 1 integrin from membrane rafts to caveolae and subsequent protein kinase C-dependent internalization.

Paula Upla, Varpu Marjomäki, Pasi Kankaanpää, Johanna Ivaska, Timo Hyypiä, F Gisou Van Der Goot, Jyrki Heino

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

67 citing papers in PubMed, 168 citations in OpenAlex.

  1. Ligand-bound integrin αvβ6 internalisation and trafficking.Frontiers in cell and developmental biology · 2022
    Article
  2. Membrane Rafts: Portals for Viral Entry.Frontiers in microbiology · 2021
    Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Resistance of Echovirus 11 to ClOEnvironmental science & technology · 2017
    Article
  13. Article
  14. Manipulation of Host Cholesterol by Obligate Intracellular Bacteria.Frontiers in cellular and infection microbiology · 2017
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Caveolin modulates integrin function and mechanical activation in the cardiomyocyte.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2015
    Article

7 more citing papers are in PubMed but not listed here.

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 3 institutions in 2 countries.

Paula UplaCell Biology, University of Jyväskylä, FIN-40351 Jyväskylä, Finland.
Varpu Marjomäki
Pasi Kankaanpää
Johanna Ivaska
Timo Hyypiä
F Gisou Van Der Goot
Jyrki Heino
University of Jyväskylä · FIUniversity of Geneva · CHUniversity of Oulu · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Integrin alpha 2 beta 1 mediates the binding of several epithelial and mesenchymal cell types to collagen. The composition of the surrounding plasma membrane, especially caveolin-1- and cholesterol-containing membrane structures called caveolae, may be important to integrin signaling. On cell surface alpha 2 beta 1 integrin was located in the raft like membrane domain, rich in GPI-anchored proteins, rather than in caveolae. However, when antibodies were used to generate clusters of alpha 2 beta 1 integrin, they started to move laterally on cell surface along actin filaments. During the lateral movement small clusters fused together. Finally alpha 2 beta 1 integrin was found inside caveolae and subsequently internalized into caveosome-like perinuclear structures. The internalization process, unlike cluster formation or lateral redistribution, was dependent on protein kinase C alpha activity. Caveolae are known to be highly immobile structures and alpha 2 beta 1 integrin clusters represent a previously unknown mechanism to activate endocytic trafficking via caveolae. The process was specific to alpha 2 beta 1 integrin, because the antibody-mediated formation of alpha V integrin clusters activated their internalization in coated vesicles and early endosomes. In addition to natural ligands human echovirus-1 (EV1) gains entry into the cell by binding to alpha 2 beta 1 and taking advantage of alpha 2 beta 1 internalization via caveolae.

Indexed as

Actin CytoskeletonCaveolaeCaveolin 1CaveolinsCell MembraneCell Membrane StructuresCells, CulturedCoated VesiclesEndosomesEnterovirus B, HumanHumansIntegrin alpha2beta1Integrin alphaVMicroscopy, ImmunoelectronProtein Kinase CProtein Kinase C-alphaCAV1 protein, humanCaveolin 1CaveolinsIntegrin alpha2beta1Integrin alphaVPRKCA protein, humanProtein Kinase CProtein Kinase C-alpha

Identifiers

PMID14657242
PMCPMC329276
OpenAlexW1969025660

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.