title: [Immunohistochemical study for growth factor and oncogene on atypical epithelium of the stomach].
abstract: Almost all atypical epithelial lesions of the stomach consist of atypical cells in the superficial part of the glands and nonatypical cells in the deeper portion of the glands. A transition zone was formed between the superficial atypical gland cells and the deeper nonatypical gland cells. Positive cells were widely demonstrated with immunohistochemical stains for PCNA in the superficial atypical glands and transition zone. The rate of PCNA positivity was 37.7%. However, a small number of positive cells for EGFR (8.5%), c-erbB-2(11.3%), p53(11.3%) and c-K-ras(1.7%) were found in ATP. The incidence of positivity for these factors was low compared with that for carcinomas. The percentages of positive cells for EGFR(1.5%) and c-erbB-2(4.5%) were very low in intestinal metaplasia.
authors.affiliation: Department of Pathology, Mie University Hospital, Tsu.
authors.forename: H
authors.initials: H
authors.lastname: Yamagiwa
authors.forename: N
authors.initials: N
authors.lastname: Onishi
authors.forename: M
authors.initials: M
authors.lastname: Nishii
mesh_terms: D004815:Epidermal Growth Factor / Q000032:analysis*; D004848:Epithelium / Q000737:chemistry; D066246:ErbB Receptors / Q000032:analysis; D006801:Humans; D007150:Immunohistochemistry; D008679:Metaplasia / Q000235:genetics / Q000378:metabolism; D009687:Nuclear Proteins; D009857:Oncogenes; D018809:Proliferating Cell Nuclear Antigen; D013270:Stomach / Q000737:chemistry* / Q000473:pathology
chemical_list: D009687:Nuclear Proteins; D018809:Proliferating Cell Nuclear Antigen; D004815:Epidermal Growth Factor; D066246:ErbB Receptors