title: Diagnostic value of mucins (MUC1, MUC2 and MUC5AC) expression profile in endoscopic ultrasound-guided fine-needle aspiration specimens of the pancreas.
abstract: Mucins are aberrantly expressed in various malignancies. We immunohistochemically tested mucins expression (MUC1, MUC2 and MUC5AC) in EUS-FNA samples from pancreatic occupying lesions for the diagnostic utility. The prevalence of MUC1, MUC2 and MUC5AC expression in pancreatic cancers were 77.5% (31/40), 10.0% (4/40) and 80.0% (32/40), respectively, and in the benign pancreatic diseases 25% (4/16), 31.3% (5/16) and 43.8% (7/16). MUC1 and MUC5AC significantly overexpressed in pancreatic cancer, and MUC1 negatively related with tumor differentiation degree (p < 0.05). The prevalence of MUC1, MUC2 and MUC5AC expression in pancreatic mucinous neoplasms were 66.7% (12/18), 38.9% (7/18) and 88.9% (16/18), respectively, and in the pancreatic non-mucinous neoplasms 60.5% (23/38), 5.3% (2/38) and 57.9% (22/38). MUC2 and MUC5AC significantly overexpressed in pancreatic mucinous neoplasms, especially MUC2 in benign mucinous neoplasms (p < 0.05). Compared with cytology alone, the combination test of MUC1+cytology, and MUC5AC+cytology could achieve higher sensitivity (85 vs. 65%, 100 vs. 65%) and accuracy (89.3% vs. 73.2%, 91.1% vs. 73.2%) for pancreatic cancer diagnosis; the combination test of MUC2 + cytology, and MUC5AC + cytology could achieve higher sensitivity (77.8% vs. 38.9%, 100% vs. 38.9%), and specificity (97.4% vs. 60.5%, 71.1% vs. 60.5%) accuracy (100% vs. 51.8%, 80.4% vs. 51.8%) for mucinous neoplasm diagnosis. The panel MUC1+/MUC2-/MUC5AC+/ was higher specific in pancreatic cancer diagnosis, as well as MUC1-/MUC2+/MUC5AC+/ in pancreatic mucinous neoplasms. Our observations suggest the mucins expression profile in EUS-FNA specimens has higher value for the diagnosis of pancreatic cancer and mucinous neoplasms.
authors: Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Yi
authors: Y
authors: Wang
authors: Jun
authors: J
authors: Gao
authors: Zhaoshen
authors: Z
authors: Li
authors: Zhendong
authors: Z
authors: Jin
authors: Yanfang
authors: Y
authors: Gong
authors: Xiaohua
authors: X
authors: Man
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis*; D044963:Biopsy, Fine-Needle / Q000379:methods; D021441:Carcinoma, Pancreatic Ductal / Q000737:chemistry / Q000175:diagnosis; D003536:Cystadenocarcinoma / Q000737:chemistry / Q000175:diagnosis; D018291:Cystadenoma, Mucinous / Q000737:chemistry / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D020869:Gene Expression Profiling; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008207:Lymphatic Metastasis; D008223:Lymphoma / Q000737:chemistry / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D055271:Mucin 5AC; D018396:Mucin-1 / Q000032:analysis; D055262:Mucin-2; D009077:Mucins / Q000032:analysis*; D009367:Neoplasm Staging; D016017:Odds Ratio; D010182:Pancreatic Diseases / Q000175:diagnosis / Q000378:metabolism; D010190:Pancreatic Neoplasms / Q000737:chemistry* / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity; D014463:Ultrasonography
chemical_list: D014408:Biomarkers, Tumor; C524625:MUC2 protein, human; C524678:MUC5AC protein, human; D055271:Mucin 5AC; D018396:Mucin-1; D055262:Mucin-2; D009077:Mucins