Evidence map›Paper›PMID 11809836›Full record

ArticleMolecular biology of the cell2002

Caveolae are highly immobile plasma membrane microdomains, which are not involved in constitutive endocytic trafficking.

Peter Thomsen, Kirstine Roepstorff, Martin Stahlhut, Bo van Deurs

Open access · greenAbstract readComparative Study
In one paragraph

Article in Molecular biology of the cell, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 157 papers.

0numbers the graph read from it
0cells of the map it votes in
157citing papers in PubMed
14.5field-weighted citation impact, top 1% 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

157 citing papers in PubMed, 429 citations in OpenAlex.

  1. Article
  2. Review
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  5. Transcytosis of LDL Across Arterial Endothelium: Mechanisms and Therapeutic Targets.Arteriosclerosis, thrombosis, and vascular biology · 2025
    Review
  6. Article
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  9. Review
  10. Review
  11. Article
  12. Article
  13. Subcellular trafficking and endocytic recycling of KAmerican journal of physiology. Cell physiology · 2022
    Review
  14. The Endolysosomal System: The Acid Test for SARS-CoV-2.International journal of molecular sciences · 2022
    Review
  15. Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Review

97 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

4 authors.

Peter ThomsenStructural Cell Biology Unit, Department of Medical Anatomy, The Panum Institute, DK-2200 Copenhagen N, Denmark.
Kirstine Roepstorff
Martin Stahlhut
Bo van Deurs

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate whether caveolae are involved in constitutive endocytic trafficking, we expressed N- and C- terminally green fluorescent protein (GFP)-tagged caveolin- 1 fusion proteins in HeLa, A431, and Madin-Darby canine kidney cells. The fusion proteins were shown by immunogold labeling to be sorted correctly to caveolae. By using confocal microscopy and photobleaching techniques, it was found that although intracellular structures labeled with GFP-tagged caveolin were dynamic, GFP-labeled caveolae were very immobile. However, after incubation with methyl- beta-cyclodextrin, distinct caveolae disappeared and the mobility of GFP-tagged caveolin in the plasma membrane increased. Treatment of cells with cytochalasin D caused lateral movement and aggregation of GFP-labeled caveolae. Therefore, both cholesterol and an intact actin cytoskeleton are required for the integrity of GFP-labeled caveolae. Moreover, stimulation with okadaic acid caused increased mobility and internalization of the labeled caveolae. Although the calculated mobile fraction (for t = infinity) of intracellular, GFP-tagged caveolin- associated structures was 70-90%, GFP-labeled caveolae in unstimulated cells had a mobile fraction of <20%, a value comparable to that previously reported for E-cadherin in junctional complexes. We therefore conclude that caveolae are not involved in constitutive endocytosis but represent a highly stable plasma membrane compartment anchored by the actin cytoskeleton.

Indexed as

beta-CyclodextrinsAnimalsBiological TransportCaveolaeCaveolin 1CaveolinsCyclodextrinsCycloheximideCytochalasin DDogsEndocytosisEpithelial CellsGreen Fluorescent ProteinsHeLa CellsHumansKineticsbeta-CyclodextrinsCAV1 protein, humanCaveolin 1CaveolinsCyclodextrinsCycloheximideCytochalasin DGreen Fluorescent ProteinsLuminescent Proteinsmethyl-beta-cyclodextrinNucleic Acid Synthesis InhibitorsOkadaic AcidRecombinant Fusion Proteins

Identifiers

PMID11809836
PMCPMC65085
OpenAlexW2160670356

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.