title: [Immunohistochemical studies in depressed type adenomas of the stomach--comparison with protruded type adenomas and depressed type well differentiated mucosal gastric cancers].
abstract: In this study, we performed immunohistochemical studies using p53 and Ki-67 immunostaining in 48 depressed type adenomas, and compared with protruded type adenomas (n = 28) and depressed type well differentiated mucosal gastric cancers (mcancer: n = 46). Focal and diffuse p53 staining patterns were not noticed in depressed type adenomas and in protruded type adenomas, but were noticed in mcancers (focal: 4.3%, diffuse: 41.3%). Ki-67 positive cells were noticed in surface epithelium in 24.4% of depressed type adenomas, in 21.4% of protruded type adenomas and in 87.0% of mcancers. Ki-67 positive rate in foveolar epithelium (superior, middle, inferior) were noticed in (31.1%, 12.9%, 6.1%) of depressed type adenomas, in (33.4%, 15.4%, 6.9%) of protruded type adenomas and in (33.4%, 31.4%, 20.4%) of mcancers. These results suggest that from the point of immunohistochemistry, depressed type adenomas were similar to protruded type adenomas, but were different from mcancers.
authors.affiliation: Cancer Detection Center, Miyagi Cancer Society.
authors.forename: T
authors.initials: T
authors.lastname: Katakura
authors.forename: T
authors.initials: T
authors.lastname: Masuda
authors.forename: T
authors.initials: T
authors.lastname: Ikeda
authors.forename: S
authors.initials: S
authors.lastname: Abe
authors.forename: T
authors.initials: T
authors.lastname: Shimada
authors.forename: S
authors.initials: S
authors.lastname: Shibuki
authors.forename: S
authors.initials: S
authors.lastname: Ohara
authors.forename: S
authors.initials: S
authors.lastname: Asaki
authors.forename: T
authors.initials: T
authors.lastname: Toyota
mesh_terms: D000236:Adenoma / Q000737:chemistry / Q000473:pathology*; D000368:Aged; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000032:analysis; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000737:chemistry / Q000473:pathology*; D016159:Tumor Suppressor Protein p53 / Q000032:analysis
chemical_list: D019394:Ki-67 Antigen; D016159:Tumor Suppressor Protein p53