Document Detail


Immunoreactive epidermal growth factor receptors are present in gastrointestinal epithelial cells of preterm infants with necrotising enterocolitis.
MedLine Citation:
PMID:  11520624     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: Epidermal growth factor (EGF) affects epithelial cell proliferation, differentiation and migration in the gastrointestinal tract of experimental animals, and increases proliferation when given intravenously to children with congenital microvillous atrophy or necrotising enteritis. The aim of the present study is to determine whether EGF receptors (EGFR) are present in the gut epithelium of preterm infants, and to discover whether neonatal necrotising enterocolitis (NEC) is associated with the absence of EGFR from mucosal cells. METHODS: Tissues were taken from involved colon and small intestine of four preterm infants with NEC, and control tissues were taken from four other neonates who had laparatomies for congenital malformations. Sections of the tissues were examined histopathologically after treatment with a monoclonal antibody against the external domain of the EGFR (Zymed Laboratories, San Francisco, CA, USA). RESULTS: Histopathological examination confirmed diagnosis of NEC in the involved bowel and controls showed appearance within normal limit. Immunoreactive EGFR were present on the epithelial cells of both the colon and small intestine, localised on the basolateral membrane of the cells of both subject and the controls. There was no apparent reduction in expression compared with controls. CONCLUSION: NEC in preterm infants is not associated with absence of EGFR. The presence of EGFR in gut epithelial cells raises the possibility of using EGF for prophylaxis or treatment of NEC.
Authors:
A O Fagbemi; N Wright; K Lakhoo; A D Edwards
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Early human development     Volume:  65     ISSN:  0378-3782     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  2001 Oct 
Date Detail:
Created Date:  2001-08-24     Completed Date:  2001-10-18     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  1-9     Citation Subset:  IM    
Affiliation:
Department of Paediatrics, Imperial College School of Medicine, Hammersmith Hospital Campus, Du Cane Road, London W12 ONN, UK.
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MeSH Terms
Descriptor/Qualifier:
Enterocolitis, Necrotizing / metabolism*,  pathology
Epithelial Cells / metabolism*,  pathology
Female
Humans
Immunohistochemistry
Infant, Newborn
Infant, Premature*
Intestinal Mucosa / metabolism*,  pathology
Intestine, Large / metabolism,  pathology
Intestine, Small / metabolism,  pathology
Male
Receptor, Epidermal Growth Factor / metabolism*
Chemical
Reg. No./Substance:
EC 2.7.10.1/Receptor, Epidermal Growth Factor

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