Mucin Expression in Endoscopic Ultrasound-Guided Fine-Needle Aspiration Specimens Is a Useful Prognostic Factor in Pancreatic Ductal Adenocarcinoma. Issue 5 (July 2015)

• Record Type: Journal Article
• Authors: Higashi, Michiyo; Yokoyama, Seiya; Yamamoto, Takafumi; Goto, Yuko; Kitazono, Ikumi; Hiraki, Tsubasa; Taguchi, Hiroki; Hashimoto, Shinichi; Fukukura, Yoshihiko; Koriyama, Chihaya; Mataki, Yuko; Maemura, Kosei; Shinchi, Hiroyuki; Jain, Maneesh; Batra, Surinder K.; Yonezawa, Suguru
• Is Part Of: Pancreas. Volume 44:Issue 5(2015)
• Publication Date: 2015-07
• Subjects: Pancreas -- Diseases -- Periodicals; Pancreas -- Periodicals; Neuroendocrine tumors -- Periodicals; 616.37005
• DOI: 10.1097/MPA.0000000000000362
• Languages: English
• ISSNs: 0885-3177

Abstract

<abstract> <title> <x xml:space="preserve">Abstract</x> </title> <sec> <title>Objectives</title> <p>The aim of this study was to further examine the utility of mucin (MUC) expression profiles as prognostic factors in pancreatic ductal adenocarcinoma (PDAC).</p> </sec> <sec> <title>Methods</title> <p>Mucin expression was examined by immunohistochemistry analysis in endoscopic ultrasound-guided fine-needle aspiration specimens obtained from 114 patients with PDAC. The rate of expression of each MUC was compared with clinicopathologic features.</p> </sec> <sec> <title>Results</title> <p>The expression rates of MUCs in cancer lesions were MUC1, 87.7%; MUC2, 0.8%; MUC4, 93.0%; MUC5AC, 78.9%; MUC6, 24.6%; and MUC16, 67.5%. MUC1 and MUC4 were positive, and MUC2 was negative in most PDACs. Patients with advanced stage of PDAC with MUC5AC expression had a significantly better outcome than those who were MUC5AC-negative (<italic>P</italic> = 0.002). With increasing clinical stage, total MUC6 expression decreased (<italic>P</italic> for trend = 0.001) and MUC16 cytoplasmic expression increased (<italic>P</italic> for trend = 0.02). The prognosis of patients with MUC16 cytoplasmic expression was significantly poorer than those without this expression. Multivariate survival analysis revealed that MUC16 cytoplasmic expression was a significant independent predictor of a poor prognosis after adjusting for the effects of other prognostic factors (<italic>P</italic> = 0.002).</p> </sec> <sec> <title>Conclusions</title> <p>Mucin expression profiles in ultrasound-guided fine-needle aspiration specimens have excellent diagnostic utility and are useful predictors of outcome in patients with PDAC.</p> </sec> </abstract>