title: A new functional classification of stomach cancer and its pathobiological and clinical significance.
abstract: The functional differentiations of stomach cancer specimens from 121 patients were investigated by enzyme-, mucin-, affinity- and immunohistochemical methods, and the stomach cancers were divided into five functionally differentiated types: 1) Absorptive Function Differentiation Type (AFDT), 19.8%; 2) Mucin Secreting Function Differentiation Type (MSFDT), 24.0%; 3) Absorptive and Mucin-Producing Function Differentiation Type (AMPFDT), 47.1%; 4) Special Function Differentiation Type (SFDT), 0.8%; and 5) Non-Function Differentiation Type (NFDT), 8.3%. The results indicate that stomach cancer tissues of the same histological type often display differing functional differentiation, and these functionally differentiated types have different invasive and metastatic characteristics. In addition, the functionally differentiated types have particular organic affinities of metastasis and different clinical prognoses. This study suggests that this new functional classification may supplement histological classification. The mechanisms of liver and ovary metastases of stomach cancer are also discussed.
authors.affiliation: Cancer Institute, China Medical University, Shenyang.
authors.forename: Y
authors.initials: Y
authors.lastname: Xin
authors.forename: F
authors.initials: F
authors.lastname: Zhao
authors.forename: W
authors.initials: W
authors.lastname: Gong
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: Y
authors.initials: Y
authors.lastname: Zhang
authors.forename: R
authors.initials: R
authors.lastname: Yan
mesh_terms: D000230:Adenocarcinoma / Q000145:classification* / Q000378:metabolism* / Q000556:secondary; D005260:Female; D006801:Humans; D007797:Laminin / Q000378:metabolism; D008113:Liver Neoplasms / Q000556:secondary; D009077:Mucins / Q000378:metabolism*; D009361:Neoplasm Invasiveness; D010051:Ovarian Neoplasms / Q000556:secondary; D011379:Prognosis; D011960:Receptors, Estrogen / Q000378:metabolism; D013274:Stomach Neoplasms / Q000145:classification* / Q000378:metabolism* / Q000473:pathology
chemical_list: D007797:Laminin; D009077:Mucins; D011960:Receptors, Estrogen