Inzulinszeru növekedési faktor receptor, hepatocytaeredetu növekedési faktor receptor és telomeráz fehérje expresszió colitis ulcerosában

Translated title of the contribution: Insulin-like growth factor receptor, hepatocyte-derived growth factor receptor and telomerase expression in ulcerative colitis

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Background: The risk of colo-rectal carcinoma development is elevated in chronic, longstanding ulcerative colitis. The changes of such regenerative and immortalizing pathways caused by the inflammatory process that are proved to be carcinogenic in other human tissues have not been fully and uniformly described. Aim of the study was to describe the expression alterations of regenerative signal receptors and cell aging inhibitory systems within colonic crypts considering the histological activity of the disease. Materials and methods: I-type insulin-like growth factor receptor (IGF1R), hepatocyte derived growth factor receptor (HGFR), telomerase reverse transcriptase (TERT) and telomerase associated protein (TP-1) expression were evaluated immunohisochemically on formalin fixed paraffin embedded biopsy specimen from 10 mild, 10 moderate, and 10 severe active inflammation of ulcerative colitis and from 10 normal colonic tissue. Results: In mild inflammation all observed parameter showed significantly elevated protein expression in protein level compared to normal (p <0.005). In moderately active inflammation only IGF1R expression was significantly higher compared to normal and to mild inflammation (p <0.005). There were no regenerative signal expression alteration in severe inflammation compared to normal, and epithelial telomerase expression was not detectable in these cases. Conclusion: The expression of regenerative signal receptors and immortalizing factors is elevated in mildly (and moderately) inflamed ulcerative colitis. This phenomenon let the genetically defected epithelial cells to pathologically survive and proliferate, so thus favours the development of tumors.

Translated title of the contributionInsulin-like growth factor receptor, hepatocyte-derived growth factor receptor and telomerase expression in ulcerative colitis
Original languageHungarian
Pages (from-to)1835-1841
Number of pages7
JournalOrvosi hetilap
Volume147
Issue number38
Publication statusPublished - Sep 24 2006

ASJC Scopus subject areas

  • Medicine(all)

Fingerprint Dive into the research topics of 'Insulin-like growth factor receptor, hepatocyte-derived growth factor receptor and telomerase expression in ulcerative colitis'. Together they form a unique fingerprint.

  • Cite this