Contribution of Extracellular Matrix and Signal Mechanotransduction to Epithelial Cell Damage in Inflammatory Bowel Disease Patients: A Proteomic Study

Manuela Moriggi, Luca Pastorelli, Enrica Torretta, Gian Eugenio Tontini, Daniele Capitanio, Stefano Ferrero Bogetto, Maurizio Vecchi, Cecilia Gelfi

Research output: Contribution to journalArticle

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Abstract

This study utilizes 2D-DIGE (difference gel etrophoresis), isotope-coded protein labeling and biochemical assays to characterize protein alteration in ulcerative colitis (UC) and Crohn's disease (CD) in human epithelial cell and mucosal biopsies in inflammatory bowel disease (IBD)-affected patients. The aim of this study is to identify the key molecular signatures involved in epithelial cell structure of IBDs. In non-inflamed UC (QUC) keratins, vimentin, and focal adhesion kinase (7) increased, whereas vinculin and de-tyrosinated α-tubulin decreased; inflammation (IUC) exacerbated molecular changes, being collagen type VI alpha 1 chain (COL6A1), tenascin-C and vimentin increased. In non-inflamed CD (QCD), tenascin C, de-tyrosinated α-tubulin, vinculin, FAK, and Rho-associated protein kinase 1 (ROCK1) decreased while vimentin increased. In inflamed CD (ICD), COL6A1, vimentin and integrin alpha 4 increased. In QUC, cell metabolism is characterized by a decrease of the tricarboxylic acid cycle enzymes and a decrease of short/branched chain specific acyl-CoA dehydrogenase, fatty acid synthase, proliferator-activated receptors alpha, and proliferator-activated receptors gamma. In QCD a metabolic rewiring occurs, as suggested by glycerol-3-phosphate dehydrogenase (GPD2), pyruvate dehydrogenase E1 component subunit beta, NADH dehydrogenase [ubiquinone] iron-sulfur protein 3, and 4-trimethylaminobutyraldehyde dehydrogenase increment, while dihydrolipoyl dehydrogenase decreased. Macroautophagy is activated in QUC and IUC, with increased levels of p62, HSC70, major vault protein, myosin heavy chain 9, whereas it is blunted in QCD and ICD. The differing pattern of extracellular matrix, cytoskeletal derangements, cellular metabolism, and autophagy in UC and CD may contribute to the pathophysiological understanding of these disorders and serve as diagnostic markers in IBD patients.

Original languageEnglish
Article number1700164
JournalProteomics
Volume17
Issue number23-24
DOIs
Publication statusPublished - 2017

Fingerprint

Vimentin
Inflammatory Bowel Diseases
Crohn Disease
Proteomics
Extracellular Matrix
Epithelial Cells
Ulcerative Colitis
Vinculin
Tenascin
Autophagy
Tubulin
Collagen Type VI
Two-Dimensional Difference Gel Electrophoresis
Dihydrolipoamide Dehydrogenase
Iron-Sulfur Proteins
Integrin alpha Chains
Glycerolphosphate Dehydrogenase
Electron Transport Complex I
Metabolism
Fatty Acid Synthases

Keywords

  • Autophagy
  • Extracellular matrix
  • Inflammatory bowel diseases
  • Mechanotransduction

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology

Cite this

Contribution of Extracellular Matrix and Signal Mechanotransduction to Epithelial Cell Damage in Inflammatory Bowel Disease Patients : A Proteomic Study. / Moriggi, Manuela; Pastorelli, Luca; Torretta, Enrica; Tontini, Gian Eugenio; Capitanio, Daniele; Bogetto, Stefano Ferrero; Vecchi, Maurizio; Gelfi, Cecilia.

In: Proteomics, Vol. 17, No. 23-24, 1700164, 2017.

Research output: Contribution to journalArticle

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