title: Expression of matrix metalloproteinase 7 is an unfavorable postoperative prognostic factor in cholangiocarcinoma of the perihilar, hilar, and extrahepatic bile ducts.
abstract: Cholangiocarcinoma of the perihilar, hilar, and extrahepatic bile ducts (collectively referred to as the large bile ducts) is an intractable disease, and a papillary phenotype and well-differentiated histologic grade have been proposed as indicators of a favorable prognosis after surgical resection. In this study, we examined the significance of matrix metalloproteinases (MMPs) in cholangiocarcinoma with respect to clinicopathologic features. We subjected 66 surgically resected specimens of cholangiocarcinoma of the large bile ducts to clinicopathologic examination, including postoperative survival, papillary phenotype, and immunohistochemical expression of MMP-2,-7, -9, and membrane type 1 MMP (MT1-MP). Nonneoplastic biliary epithelium did not express these 4 MMPs, whereas cholangiocarcinoma frequently expressed MMP-2 (33.9%), -7 (75.8%), -9 (47.5%), and MT1-MMP (54.5%). In particular, conventional (nonpapillary) cholangiocarcinoma expressed MMP-7 and MT1-MMP more frequently than papillary cholangiocarcinoma. The expression of MMP-7 and MT1-MMP significantly correlated with the nonpapillary phenotype, poorly differentiated histologic grade, perineural invasion, and advanced TNM stage. In contrast, the expression of MMP-2 and -9 was not associated with any of the clinicopathologic features. Univariate analysis of disease-specific survival revealed that a papillary phenotype and expression of MMP-7 were prognostic factors of cholangiocarcinoma, in addition to TNM stage, poorly differentiated histologic grade, perineural invasion, and microscopic margin status. Multivariate analysis showed only TNM stage to be an independent prognostic factor. Expression of MMP-7 in cholangiocarcinoma is an unfavorable postoperative prognostic factor of cholangiocarcinoma arising from the large bile ducts. Underexpression of MMPs in papillary cholangiocarcinoma might be associated with a favorable prognosis.
authors.affiliation: Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa 920-8640, Japan.
authors.forename: Keita
authors.initials: K
authors.lastname: Itatsu
authors.forename: Yoh
authors.initials: Y
authors.lastname: Zen
authors.forename: Junpei
authors.initials: J
authors.lastname: Yamaguchi
authors.forename: Shusaku
authors.initials: S
authors.lastname: Ohira
authors.forename: Akira
authors.initials: A
authors.lastname: Ishikawa
authors.forename: Hiroko
authors.initials: H
authors.lastname: Ikeda
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Sato
authors.forename: Kenichi
authors.initials: K
authors.lastname: Harada
authors.forename: Motoko
authors.initials: M
authors.lastname: Sasaki
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Sasaki
authors.forename: Hiroya
authors.initials: H
authors.lastname: Sakamoto
authors.forename: Masato
authors.initials: M
authors.lastname: Nagino
authors.forename: Yuji
authors.initials: Y
authors.lastname: Nimura
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Ohta
authors.forename: Yasuni
authors.initials: Y
authors.lastname: Nakanuma
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001650:Bile Duct Neoplasms / Q000175:diagnosis* / Q000503:physiopathology; D017734:Bile Ducts, Extrahepatic / Q000473:pathology; D001653:Bile Ducts, Intrahepatic / Q000473:pathology; D018281:Cholangiocarcinoma / Q000175:diagnosis* / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D053511:Matrix Metalloproteinase 14 / Q000096:biosynthesis; D020778:Matrix Metalloproteinase 2 / Q000096:biosynthesis; D020783:Matrix Metalloproteinase 7 / Q000096:biosynthesis*; D008875:Middle Aged; D011184:Postoperative Period; D011379:Prognosis
chemical_list: D020783:Matrix Metalloproteinase 7; D020778:Matrix Metalloproteinase 2; D053511:Matrix Metalloproteinase 14