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PXD073053-1

PXD073053 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleTissue-layer resolved proteome landscape of Crohns disease strictures highlights potential drivers of fibrosis progression
DescriptionThe chronic inflammation of Crohns disease frequently leads to fibrosis and muscular hypertrophy of the intestinal wall. This often culminates in strictures, a serious condition lacking directed therapy. Severe pathological changes occur in the submucosa and muscularis propria intestinal wall layers of strictures, yet stricture-associated proteome changes in these layers is unexplored. We perform unbiased proteomics on submucosa and muscularis propria microdissected from transmural sections of strictured and non-strictured ileum. Proteome changes in stricture submucosa reflect a transition from homeostasis to tissue remodeling, inflammation and smooth muscle alterations. Top submucosa features include reduced vascular components and lipid metabolism proteins accompanied by increased proteins with immune-, matrix- or stress functions including CTHRC1, TNC, IL16, MZB1 and TXNDC5. In parallel, predominant changes in stricture muscularis propria include increased matrix (POSTN) and immune (mast cell CPA3) proteins alongside decreased proteins with lipid metabolic, mitochondrial or key muscle functions. Finally, trends of differentially expressed proteins along non-stricture submucosa suggest progressive profibrotic tissue remodeling and muscle expansion as proximity to stricture increases. The comprehensive proteome map presented here offers unique layer-resolved insight into the stricture microenvironment and potential drivers of fibrotic disease, providing a unique resource to fuel research toward new biomarkers and therapeutic targets.
HostingRepositoryMassIVE
AnnounceDate2026-01-28
AnnouncementXMLSubmission_2026-01-28_05:32:42.153.xml
DigitalObjectIdentifier
ReviewLevelNon peer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterJohannes Fuchs
SpeciesList scientific name: Homo sapiens; common name: human; NCBI TaxID: 9606;
ModificationListOxidation; TMTpro; Carbamidomethyl
InstrumentOrbitrap Eclipse
Dataset History
RevisionDatetimeStatusChangeLog Entry
02026-01-14 01:12:00ID requested
12026-01-28 05:32:42announced
Publication List
no publication
Keyword List
submitter keyword: Crohns disease strictures, proteomics, intestinal fibrosis, fibrostenosis, DatasetType:Proteomics
Contact List
Mary Jo Wick
contact affiliationDepartment of Microbiology and Immunology, Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Box 435, 405 30 Gothenburg
contact emailmary-jo.wick@immuno.gu.se
lab head
Johannes Fuchs
contact affiliationUniversity of Gothenburg
contact emailjohannes.fuchs@gu.se
dataset submitter
Full Dataset Link List
MassIVE dataset URI
Dataset FTP location
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