Evidence map›Paper›PMID 32897127›Full record

ArticleAutophagy2021

An inverted CAV1 (caveolin 1) topology defines novel autophagy-dependent exosome secretion from prostate cancer cells.

Nicholas Ariotti, Yeping Wu, Satomi Okano, Yann Gambin, Jordan Follett, James Rae, Charles Ferguson, Rohan D Teasdale, Kirill Alexandrov, Frederic A Meunier and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Autophagy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

33 citing papers in PubMed, 43 citations in OpenAlex.

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  14. Dual role of autophagy in bone metastasis: mechanistic insights and therapeutic targeting.American journal of clinical and experimental urology · 2025
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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

12 authors at 1 institution in 1 country.

Nicholas AriottiThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.ORCID 0000-0003-3901-0831
Yeping WuThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.ORCID 0000-0003-3608-1087
Satomi OkanoThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.
Yann GambinThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.
Jordan FollettThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.
James RaeThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.
Charles FergusonThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.
Rohan D TeasdaleThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.
Kirill AlexandrovThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.ORCID 0000-0002-0957-6511
Frederic A MeunierClem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, Australia.
Michelle M HillUQ Diamantina Institute, The University of Queensland, Brisbane, Australia.ORCID 0000-0003-1134-0951
Robert G PartonThe Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia.
The University of Queensland · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

CAV1 (caveolin 1) expression and secretion is associated with prostate cancer (PCa) disease progression, but the mechanisms underpinning CAV1 release remain poorly understood. Numerous studies have shown CAV1 can be secreted within exosome-like vesicles, but antibody-mediated neutralization can mitigate PCa progression; this is suggestive of an inverted (non-exosomal) CAV1 topology. Here we show that CAV1 can be secreted from specific PCa types in an inverted vesicle-associated form consistent with the features of bioactive CAV1 secretion. Characterization of the isolated vesicles by electron microscopy, single-molecule fluorescence microscopy and proteomics reveals they represent a novel class of exosomes ~40 nm in diameter containing ~50-60 copies of CAV1 and, strikingly, are released via a non-canonical secretory macroautophagy/autophagy pathway. This study provides novel insights into a mechanism whereby CAV1 translocates from a normal plasma membrane distribution to an inverted secreted form implicated in PCa disease progression.

Indexed as

Caveolin 1ExosomesProstatic NeoplasmsAutophagyHumansMaleCAV1 protein, humanCaveolin 1Autophagosomeautophagycaveolin 1CAVIN1endosomeexosomeprostate cancer

Identifiers

PMID32897127
PMCPMC8496722
OpenAlexW3084290805

What Socratic 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 Socratic graph.