Evidence map›Paper›PMID 20051050›Full record

ArticleTraffic (Copenhagen, Denmark)2010

Gangliosides and beta1-integrin are required for caveolae and membrane domains.

Raman Deep Singh, David L Marks, Eileen L Holicky, Christine L Wheatley, Tatiana Kaptzan, Satoshi B Sato, Toshihide Kobayashi, Kun Ling, Richard E Pagano

Open access · greenAbstract read
In one paragraph

Article in Traffic (Copenhagen, Denmark), 2010. 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
2.7field-weighted citation impact, top 11% 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, 49 citations in OpenAlex.

  1. Review
  2. Environmental Toxicants and Their Disruption of Integrin Signaling in Lipid Rafts.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Neu3 sialidase-mediated ganglioside conversion is necessary for axon regeneration and is blocked in CNS axons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Caveolae as plasma membrane sensors, protectors and organizers.Nature reviews. Molecular cell biology · 2013
    Review
  16. Article
  17. Article
  18. Article
  19. Switching the targeting pathways of a therapeutic antibody by nanodesign.Angewandte Chemie (International ed. in English) · 2012
    Article
  20. 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

9 authors at 3 institutions in 2 countries.

Raman Deep SinghDepartments of Medicine, Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.
David L Marks
Eileen L Holicky
Christine L Wheatley
Tatiana Kaptzan
Satoshi B Sato
Toshihide Kobayashi
Kun Ling
Richard E Pagano
Mayo Clinic · USKyoto University · JPRIKEN · JP

Funding

INTRACELLULAR TRANSLOCATION AND METABOLISM OF LIPIDSR01GM022942 · NIGMS · MAYO CLINIC ROCHESTER · PI MARKS, DAVID LARRY · 1985 to 2010
$5.3M
MEMBRANE TRAFFIC IN SPHINGOLIPID STORAGE DISEASESR01GM060934 · NIGMS · MAYO CLINIC ROCHESTER · PI LIMPER, ANDREW H · 2001 to 2011
$2.9M
INTRACELLULAR TRANSLOCATION AND METABOLISM OF LIPIDSR37GM022942 · NIGMS · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI PAGANO, RICHARD E · 1989 to 1998
–
NIGMS NIH HHS GM-22942NIGMS NIH HHS GM-60934NIGMS NIH HHS R01 GM022942NIGMS NIH HHS R01 GM060934
6 · The paper itself

Abstract

Caveolae are plasma membrane domains involved in the uptake of certain pathogens and toxins. Internalization of some cell surface integrins occurs via caveolae suggesting caveolae may play a crucial role in modulating integrin-mediated adhesion and cell migration. Here we demonstrate a critical role for gangliosides (sialo-glycosphingolipids) in regulating caveolar endocytosis in human skin fibroblasts. Pretreatment of cells with endoglycoceramidase (cleaves glycosphingolipids) or sialidase (modifies cell surface gangliosides and glycoproteins) selectively inhibited caveolar endocytosis by >70%, inhibited the formation of plasma membrane domains enriched in sphingolipids and cholesterol ('lipid rafts'), reduced caveolae and caveolin-1 at the plasma membrane by approximately 80%, and blunted activation of beta1-integrin, a protein required for caveolar endocytosis in these cells. These effects could be reversed by a brief incubation with gangliosides (but not with asialo-gangliosides or other sphingolipids) at 10 degrees C, suggesting that sialo-lipids are critical in supporting caveolar endocytosis. Endoglycoceramidase treatment also caused a redistribution of focal adhesion kinase, paxillin, talin, and PIP Kinase Igamma away from focal adhesions. The effects of sialidase or endoglycoceramidase on membrane domains and the distribution of caveolin-1 could be recapitulated by beta1-integrin knockdown. These results suggest that both gangliosides and beta1-integrin are required for maintenance of caveolae and plasma membrane domains.

Indexed as

CaveolaeCaveolin 1EndocytosisFibroblastsFocal Adhesion Protein-Tyrosine KinasesGangliosidesGlycoside HydrolasesHumansIntegrin beta1Membrane MicrodomainsNeuraminidasePaxillinSkinTalinCaveolin 1endoglycoceramidaseFocal Adhesion Protein-Tyrosine KinasesGangliosidesGlycoside HydrolasesIntegrin beta1NeuraminidasePaxillinTalin

Identifiers

PMID20051050
PMCPMC2852475
OpenAlexW1974193914

What OpenQuestion holds

Textmetadata
LicenceTDM
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.