title: The alteration of Id-1 and TSP-1 expression in mucoepidermoid carcinoma associated with its clinical features and prognosis.
abstract: Expression of Id-1 (inhibitors of DNA binding/differentiation protein 1) and TSP-1 (thrombospondin-1) in mucoepidermoid carcinoma and their relationship to pathological features and prognosis was studied. Moderately and poorly differentiated groups had significantly higher Id-1 positive expression rate (p<0.05) than well differentiated carcinoma. Stages III-IV showed significant increase of Id-1 positive expression rate (p<0.05) compared with stages I and II. Id-1 positive expression was significantly higher in patients with cervical lymph node metastasis or relapse at 5 years (p<0.05). After that, patients with negative Id-1 expression had significantly higher tumor-free survival than patients with positive expression (p<0.05). Correlation between the expression of Id-1 and TSP-1 in mucoepidermoid carcinoma was negative (p<0.05). Poorly differentiated groups show significantly lower TSP-1 positive expression rate than well differentiated groups (p<0.05). No significant differences of TSP-1 positive expression were detected with clinical stage. TSP-1 positive expression was significantly lower in patients with cervical lymph node metastasis or relapse at 5 years (p<0.05). After 5 years, patients with positive TSP-1 expression had significantly higher tumor-free survival than patients with negative TSP-1. Positive Id-1 expression is associated with high malignancy/poor prognosis; positive TSP-1 expression is associated with low malignancy/good prognosis. Protein expression status may help assess tumor malignancy and patient prognosis.
authors.affiliation: State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, PR China.
authors.forename: S
authors.initials: S
authors.lastname: Yang
authors.forename: L-J
authors.initials: LJ
authors.lastname: Guo
authors.forename: X-F
authors.initials: XF
authors.lastname: Tang
authors.forename: K
authors.initials: K
authors.lastname: Tan
authors.forename: R-G
authors.initials: RG
authors.lastname: Gong
authors.forename: A
authors.initials: A
authors.lastname: Li
authors.forename: T
authors.initials: T
authors.lastname: Yu
authors.forename: Q-H
authors.initials: QH
authors.lastname: Gao
authors.forename: M
authors.initials: M
authors.lastname: Xuan
authors.forename: Y-M
authors.initials: YM
authors.lastname: Wen
authors.forename: C-M
authors.initials: CM
authors.lastname: Wang
authors.forename: X-Y
authors.initials: XY
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis; D002277:Carcinoma / Q000473:pathology; D018277:Carcinoma, Mucoepidermoid / Q000473:pathology* / Q000556:secondary; D002454:Cell Differentiation; D004396:Coloring Agents; D018572:Disease-Free Survival; D005260:Female; D005500:Follow-Up Studies; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D051798:Inhibitor of Differentiation Protein 1 / Q000032:analysis*; D008207:Lymphatic Metastasis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D009367:Neoplasm Staging; D010306:Parotid Gland / Q000473:pathology; D011379:Prognosis; D012189:Retrospective Studies; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D013363:Submandibular Gland / Q000473:pathology; D015996:Survival Rate; D019700:Thrombospondin 1 / Q000032:analysis*
chemical_list: D014408:Biomarkers, Tumor; D004396:Coloring Agents; D051798:Inhibitor of Differentiation Protein 1; D019700:Thrombospondin 1