title: Expression and prognostic roles of integrins and interleukin-1 receptor type I in patients with ductal adenocarcinoma of the pancreas.
abstract: To investigate the prognostic indicator, we examined the expression of alpha6- and alpha5-integrin and interleukin-1 receptor type I (IL-1RI) immunohistochemically, and analyzed the correlation between immunohistochemical findings and clinicopathological factors in pancreatic cancer. In patients with a strongly expressing alpha6-integrin subunit or weakly expressing alpha5beta1-integrin in pancreatic cancer tissues there was a significant association with advanced TNM stage (P = 0.027 and 0.014, respectively), presence of liver metastases (P = 0.032 and 0.002, respectively), and poor prognosis (P = 0.0155 and 0.0056, respectively). In patients with a weakly expressing alpha6 integrin subunit or weakly expressing alpha5beta1-integrin in noncancerous pancreatic tissues there was a significant association with poor prognosis (P = 0.0324 and 0.0396, respectively). Multivariate analysis demonstrated that strong expression of alpha6- and weak expression of alpha5beta1-integrin were found to be independent prognosticators in pancreatic cancer patients. Our present results indicate that alpha6beta1- and alpha5beta1-integrin expression can be a significant prognostic indicator in pancreatic cancer.
authors.affiliation: Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences Nagoya, Japan.
authors.forename: Hirozumi
authors.initials: H
authors.lastname: Sawai
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Funahashi
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Matsuo
authors.forename: Minoru
authors.initials: M
authors.lastname: Yamamoto
authors.forename: Yuji
authors.initials: Y
authors.lastname: Okada
authors.forename: Tetsushi
authors.initials: T
authors.lastname: Hayakawa
authors.forename: Tadao
authors.initials: T
authors.lastname: Manabe
mesh_terms: D000368:Aged; D021441:Carcinoma, Pancreatic Ductal / Q000378:metabolism* / Q000473:pathology / Q000556:secondary; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D066298:In Vitro Techniques; D016023:Integrins / Q000096:biosynthesis*; D008113:Liver Neoplasms / Q000378:metabolism* / Q000473:pathology / Q000556:secondary; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009367:Neoplasm Staging; D010190:Pancreatic Neoplasms / Q000378:metabolism* / Q000473:pathology; D011379:Prognosis; D017472:Receptors, Interleukin-1 / Q000096:biosynthesis*; D053573:Receptors, Interleukin-1 Type I
chemical_list: D016023:Integrins; D017472:Receptors, Interleukin-1; D053573:Receptors, Interleukin-1 Type I