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PXD060482-1

PXD060482 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleProteomics reveals spatial and molecular heterogeneities in advanced atherosclerotic carotid artery plaques
DescriptionAtherosclerotic plaque rupture is a major cause of cerebrovascular events, yet the molecular determinants underlying vulnerability-related plaque morphology, including fibrous cap thickness, remain incompletely defined. Using histomorphology-guided spatial proteomics, here we delineate molecular programmes associated with plaque cap phenotype across discrete plaque subregions. Across 112 carotid endarterectomy specimens, differences between thin-cap and thick-cap plaques were predominantly localised to the necrotic core and fibrous cap. These differences were enriched for processes related to inflammation, lipid handling, extracellular matrix remodelling, and ossification/calcification, and supported the presence of proteome-based plaque subtypes. PCSK9 was among the proteins most strongly associated with thin-cap plaques. Consistently, an in vitro model of necrotic core-like oxidative and inflammatory stress increased PCSK9 secretion in primary vascular smooth muscle cells. Together, these findings localise molecular programmes associated with cap phenotype to plaque compartments and provide a framework for spatially informed biomarker discovery in advanced carotid atherosclerosis.
HostingRepositoryMassIVE
AnnounceDate2026-04-30
AnnouncementXMLSubmission_2026-04-30_00:11:50.152.xml
DigitalObjectIdentifier
ReviewLevelNon peer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmittermario oroshi
SpeciesList scientific name: Homo sapiens; common name: human; NCBI TaxID: 9606;
ModificationListNo PTMs are included in the dataset
InstrumenttimsTOF Ultra; Orbitrap Astral
Dataset History
RevisionDatetimeStatusChangeLog Entry
02025-02-04 14:45:57ID requested
12026-04-30 00:11:50announced
Publication List
no publication
Keyword List
submitter keyword: atherosclerosis, subregions, smooth muscle cells, DatasetType:Proteomics
Contact List
Matthias Mann
contact affiliationProteomics and Signal Transduction Max Planck Institute of Biochemistry Am Klopferspitz 18 D-82152 Martinsried
contact emailmmann@biochem.mpg.de
lab head
mario oroshi
contact affiliationMPI
contact emailoroshi@biochem.mpg.de
dataset submitter
Full Dataset Link List
MassIVE dataset URI
Dataset FTP location
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