Evidence map›Paper›PMID 23430844›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2013

Candida albicans secreted aspartic proteases 4-6 induce apoptosis of epithelial cells by a novel Trojan horse mechanism.

Hao Wu, Deborah Downs, Koena Ghosh, Arun K Ghosh, Peter Staib, Michel Monod, Jordan Tang

Open access · greenAbstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2013. 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
3.3field-weighted citation impact, top 7% 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, 66 citations in OpenAlex.

  1. Paralogs of thebioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Secreted Aspartic Proteinases: Key Factors inInternational journal of molecular sciences · 2024
    Review
  6. Article
  7. Article
  8. Promising immunotherapeutic targets for treating candidiasis.Frontiers in cellular and infection microbiology · 2024
    Review
  9. The Yeast and Hypha Phases ofAnimals : an open access journal from MDPI · 2023
    Article
  10. Article
  11. Characterization of Aspartic Proteases fromJournal of fungi (Basel, Switzerland) · 2023
    Article
  12. Review
  13. International journal of molecular sciences · 2022
    Article
  14. Frontiers in immunology · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  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

7 authors at 4 institutions in 3 countries.

Hao WuProtein Studies Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA.
Deborah Downs
Koena Ghosh
Arun K Ghosh
Peter Staib
Michel Monod
Jordan Tang
Oklahoma Medical Research Foundation · USPurdue University West Lafayette · USLeibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e. V. - Hans-Knöll-Institut (HKI) · DEUniversity Hospital of Lausanne · CH

Funding

Inhibition and mechanism of flavivirus methyltransferaseR01AI094335 · NIAID · WADSWORTH CENTER · PI GHOSH, ARUN K, KRAMER, LAURA D · 2011 to 2015
$3.2M
NIAID NIH HHS R01 AI094335
6 · The paper itself

Abstract

Systemic infection by the pathogenic yeast Candida albicans produces high mortality in immune-compromised people. Such infection starts with the penetration of the organism at the mucosal surfaces, facilitated by the secreted aspartic proteases (Saps) 4, 5, and 6. The functional mechanism of these virulence factors is unclear. We discovered that Saps 4-6 each contains amino acid motifs RGD/KGD to bind integrins on epithelial cell A549 and are internalized to endosomes and lysosomes. These processes are inhibited by RGD-containing peptides or by substituting RGD motifs of these Saps. The internalization of Saps 4-6 results in partial permeabilization of lysosomal membranes, measured by the redistribution of the lysosomal tropic dye acridine orange to the cytosol, and the triggering of apoptosis via caspase activation. Sap 2 and mutated Saps 4-6 contain no RGD motif, are ineffective in these processes, and a proteolytic inhibitor abolished Sap 4 activity in lysosome permeabilization. Same results were also seen for human tongue keratinocyte SCC-15 cells. Mucosal lesions from this fundamental new mechanism may permit C. albicans to enter the body and may be used to attack cells in immune defense during systemic infections. RGD-motif may also be incorporated in Sap inhibitors for Candidiasis drugs targeting to lysosomes.

Indexed as

ApoptosisAmino Acid SequenceAspartic Acid EndopeptidasesCandida albicansCandidiasisCell LineEpithelial CellsFungal ProteinsHost-Pathogen InteractionsHumansIntegrinsLysosomesModels, MolecularMolecular Sequence DataOligopeptidesProtein Bindingarginyl-glycyl-aspartic acidAspartic Acid EndopeptidasesFungal ProteinsIntegrinsOligopeptidesSAP4 protein, Candida albicansSAP5 protein, Candida albicansSAP6 protein, Candida albicansinfectious diseasesintegrinslysosome membranevirulence factors

Identifiers

PMID23430844
PMCPMC6188231
OpenAlexW2019880292

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.