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PXD066550

PXD066550 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleAn anti-adhesive peptide found in extracellular vesicles from Sporothrix brasiliensis and Sporothrix schenckii
DescriptionBackground Sporothrix brasiliensis and Sporothrix schenckii are the main etiological agents of sporotrichosis. These pathogens release extracellular vesicles (EVs), which are key transport structures involved in virulence and host–pathogen interactions. EVs from S. brasiliensis and S. schenckii have been exclusively under liquid culture conditions, with analyses focused on their protein composition and functional roles. However, noinformation is currently available regarding the small molecule composition of Sporothrix EVs, and the extent to wich S. schenckii and S. brasiliensis share or differ in their EVs cargo remain unknown. Methods We isolated EVs from S. brasiliensis (strain 5110) and S. schenckii (strain 1099-18) following cultivation on solid medium, and characterized the samples using a combination of nanoparticle tracking analysis (NTA), transmission electron microscopy (TEM), proteomics, and small molecule identification. Based on the EV composition, subsequent analyses included biochemical assay to assess cell-assocaited enzyme activity and a functional model of Sporothrix adhesion to type I collagen in the presence of isoleucine-proline-isoleucine (IPI), a peptide component found in EVs produced by both S. schenckii and S. brasiliensis. Results EVs from both S. brasiliensis and S. schenckii exhibited a high protein diversity, encompassing components related to essential cellular processes and virulence mechanisms. Only a small fraction of the identified proteins was shared between the two species, and a similar pattern was observed for the small molecules. Among the common molecules was IPI, previously described in Cryptococcus EVs. IPI is an inhibitor of dipeptidyl peptidase IV (DPP4), which was detected on the surface of S. brasiliensis and S. schenckii. Both IPI and an antibody against DPP4 effectively reduced Sporothrix adhesion to type I collagen, a major component of the host extracellular matrix. Conclusion Our study reveals an unprecedented level of proteomic and metabolomic complexity in Sporothrix EVs, uncovering novel molecular features and identifying IPI as an inhibitor of fungal adhesion to collagen.
HostingRepositoryPRIDE
AnnounceDate2025-09-15
AnnouncementXMLSubmission_2025-09-14_16:24:37.556.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterMarlon D M Santos
SpeciesList scientific name: Sporothrix sp.; NCBI TaxID: 1902615;
ModificationListmonohydroxylated residue; iodoacetamide derivatized residue
InstrumentOrbitrap Exploris 480
Dataset History
RevisionDatetimeStatusChangeLog Entry
02025-07-24 09:27:34ID requested
12025-09-14 16:24:38announced
Publication List
10.1038/s41467-025-63442-x;
Orth B, Pohl P, Aust F, Ji Y, Seenivasan A, Dybkov O, Liang XJ, Bock L, Leidner F, Levantovsky S, Schardey P, Sander P, Disch NJ, Trautz ML, Mizi A, Papantonis A, Lenz C, Grubm, ü, ller H, Steinchen W, Behrends C, Urlaub H, Gehringer M, Lorenz S, Selective ubiquitination of drug-like small molecules by the ubiquitin ligase HUWE1. Nat Commun, 16(1):8182(2025) [pubmed]
Keyword List
submitter keyword: small molecules, Sporothrix,Extracellular vesicles, adhesion, proteome
Contact List
Marcio L. Rodrigues
contact affiliationInstituto Carlos Chagas, Fundação Oswaldo Cruz (Fiocruz), Curitiba, Brazil,
contact emailmarcio.rodrigues@fiocruz.br
lab head
Marlon D M Santos
contact affiliationComputational Mass Spectrometry & Proteomics Group - Fiocruz
contact emailmarlondms@gmail.com
dataset submitter
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Dataset FTP location
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