title: Elevated content of osteopontin in plasma and tumor tissues of patients with laryngeal and hypopharyngeal carcinoma associated with metastasis and prognosis.
abstract: The aim of this study was to evaluate the usefulness of osteopontin (OPN) expression level in plasma and tumor tissues of patients with laryngeal and hypopharyngeal squamous-cell carcinoma for predicting metastasis and survival of this tumor. The OPN expression in tumor tissues was detected by immunohistochemical staining in a tissue microarray of laryngeal and hypopharyngeal carcinomas, and the OPN level in plasma was measured by ELISA. The expression levels of OPN in plasma and tumor tissues were associated with clinicopathological features and survival of laryngeal and hypopharyngeal carcinomas. Results showed that the OPN expression quantitation either in tissues or plasma was significantly correlated with differentiation and lymphatic metastasis of the laryngeal and hypopharyngeal carcinoma. Elevated OPN level of plasma and tissues was significantly associated with poor survival. In conclusion, elevated OPN level in plasma and tumor tissues was significantly associated with metastasis and survival of laryngeal and hypopharyngeal carcinomas. Elevated OPN level in plasma and tumor tissues may become a useful indicator of prognosis for laryngeal and hypopharyngeal cancers.
authors.affiliation: Department of Otolaryngology/Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, People's Republic of China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Li
authors.forename: Liang
authors.initials: L
authors.lastname: Li
authors.forename: Jing Ting
authors.initials: JT
authors.lastname: Wang
authors.forename: Xuan
authors.initials: X
authors.lastname: Kan
authors.forename: Jian Guang
authors.initials: JG
authors.lastname: Lu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000032:analysis*; D002277:Carcinoma / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D007150:Immunohistochemistry; D053208:Kaplan-Meier Estimate; D007822:Laryngeal Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000473:pathology; D053495:Osteopontin / Q000032:analysis* / Q000378:metabolism; D011379:Prognosis; D046888:Tissue Array Analysis
chemical_list: D014408:Biomarkers, Tumor; D053495:Osteopontin