TRANSFORMING GROWTH FACTOR-ALPHA EXPRESSION IN NORMAL GASTRIC-MUCOSA, INTESTINAL METAPLASIA, DYSPLASIA AND GASTRIC-CARCINOMA - AN IMMUNOHISTOCHEMICAL STUDY

被引:32
作者
NASIM, MM
THOMAS, DM
ALISON, MR
FILIPE, MI
机构
[1] HAMMERSMITH HOSP,ROYAL POSTGRAD MED SCH,DEPT HISTOPATHOL,DU CANE RD,LONDON W12 0HS,ENGLAND
[2] UNIV MED & DENT SCH GUYS EL ST THOMAS HOSP,LONDON,ENGLAND
关键词
TGF-ALPHA; STOMACH; INTESTINAL METAPLASIA; DYSPLASIA; CARCINOMA;
D O I
10.1111/j.1365-2559.1992.tb00991.x
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Using a monoclonal antibody (GF10) and a standard immunohistochemical technique, immuno-expression of transforming growth factor-alpha (TGF-alpha) was found consistently within the differentiated compartment of normal adult human gastric mucosa. In 70% of mucosal samples exhibiting intestinal metaplasia there was more or less uniform TGF-alpha-immunoreactivity throughout the intestinalized mucosa. Similarly, 60% of cases of dysplasia and 60% of gastric carcinomas showed strong immunoreactivity in most of the cells. However, whereas 93% of intestinal-type cancers showed strong immunoreactivity only 30% of the diffuse type were stained and then only weakly. Transforming growth factor alpha-expression is thus a fairly regular feature of several types of differentiated gastric epithelia (normal, metaplastic, dysplastic and intestinal-type carcinoma), while its relative absence may be a factor in the histogenesis of the diffuse type of gastric carcinoma.
引用
收藏
页码:339 / 343
页数:5
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