title: Increased expression of MUC1 predicts poor survival in salivary gland mucoepidermoid carcinoma.
abstract: BACKGROUND
  Mucoepidermoid carcinoma (MEC) is a malignant neoplasm that originates most commonly in the major and minor salivary glands. The aim of this study is to determine the relationship between mucin-1 (MUC1) expression and patient outcome based on a large number of cases.
  
  
  METHODS
  Surgical specimens from 357 patients with primary salivary gland MEC and 10 patients with normal salivary gland tissue were examined by immunohistochemistry. The relationship between MUC1 expression and the clinicopathological data and patient survival was analyzed.
  
  
  RESULTS
  Results showed that MUC1 expression level was higher in MEC tissues than in paired normal tissues (P = 0.001), and the expression level of MUC1 was significantly associated with gender (P = 0.02), location (P = 0.001), grade (P = 0.001), stage (P = 0.0018) and lymph node metastasis (P = 0.001). In addition, increased expression of MUC1 was confirmed as a strong predictor of poor survival in salivary gland MEC (HR 2.175 [95% CI 1.263, 3.745]; P = 0.0051).
  
  
  CONCLUSIONS
  The findings indicate that an increased expression of MUC1 may be of great value in assessing the development and prognosis of salivary gland MEC, and could be used as a new molecule target to improve outcomes for these patients in the future.
authors.affiliation: Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomotology, 639 Zhi Zao Ju Road, Shanghai 200011, PR China.
authors.forename: Shengwen
authors.initials: S
authors.lastname: Liu
authors.affiliation: Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomotology, 639 Zhi Zao Ju Road, Shanghai 200011, PR China. Electronic address: doctorruanmin@hotmail.com.
authors.forename: Min
authors.initials: M
authors.lastname: Ruan
authors.affiliation: Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomotology, 639 Zhi Zao Ju Road, Shanghai 200011, PR China.
authors.forename: Siyi
authors.initials: S
authors.lastname: Li
authors.affiliation: Department of Oral Pathology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomotology, PR China.
authors.forename: Lizheng
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomotology, 639 Zhi Zao Ju Road, Shanghai 200011, PR China.
authors.forename: Wenjun
authors.initials: W
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000032:analysis* / Q000235:genetics; D018277:Carcinoma, Mucoepidermoid / Q000401:mortality* / Q000473:pathology / Q000556:secondary / Q000601:surgery; D002423:Cause of Death; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008207:Lymphatic Metastasis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D018396:Mucin-1 / Q000032:analysis* / Q000235:genetics; D060787:Neoplasm Grading; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D009367:Neoplasm Staging; D011379:Prognosis; D012468:Salivary Gland Neoplasms / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D012737:Sex Factors; D015996:Survival Rate; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D014408:Biomarkers, Tumor; C060192:MUC1 protein, human; D018396:Mucin-1
keywords: Lymph node metastasis; MUC1; Mucoepidermoid carcinoma (MEC); Prognosis; Salivary gland