Article thumbnail
Location of Repository

H pylori infection is associated with downregulation of E-cadherin, a molecule involved in epithelial cell adhesion and proliferation control.

By A M Terrés, J M Pajares, D O'Toole, S Ahern and D Kelleher

Abstract

Extracellular matrix proteins and proteins involved in epithelial adhesion are essential for maintenance of tissue structure. Helicobacter pylori is the major aetiological agent in peptic ulcer disease and has been shown to increase gastric cancer risk up to ninefold. In this study, changes induced by H pylori on the expression of extracellular matrix proteins (collagen IV, fibronectin, and laminin) as well as two essential proteins for cell-basement and cell-cell adhesion (alpha 6-integrin and E-cadherin) were assessed. Immunohistochemistry was performed in antral biopsy sections obtained from infected and non-infected patients, and light microscopy was used to determine the distribution and intensity of specific staining. The results showed that the infection was significantly associated with downregulation of E-cadherin, an essential protein for maintenance of solid tissues and differentiation, but did not induce changes in the expression of alpha 6-integrin or the extracellular matrix proteins

Topics: Research Article
Year: 1998
DOI identifier: 10.1136/jcp.51.5.410
OAI identifier: oai:pubmedcentral.nih.gov:500709
Provided by: PubMed Central
Sorry, our data provider has not provided any external links therefore we are unable to provide a link to the full text.

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.