Testican 1 (SPOCK1) and protein tyrosine phosphatase, receptor type S (PTPRS) show significant increase in saliva of tobacco users with oral cancer:

Translational Research in Oral Oncology

VishalakshiNanjappa¹ 

关键词: Head;    neck cancer;    salivary proteomics;    smokeless tobacco;    cigarette smoke;    tobacco;   

DOI  :  10.1177/2057178X18800534

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Objectives:To identify potential candidate proteins which are secretory in nature and present at a higher abundance in oral cancer patients with tobacco habits.Methods:Conditioned media of tobacco-treated and -untreated non-neoplastic oral keratinocytes were analyzed using iTRAQ-based mass spectrometry. Hypersecreted proteins; SPARC (osteonectin), cwcv and kazal like domains proteoglycan 1 (SPOCK1); prosaposin (PSAP); and protein tyrosine phosphatase, receptor type S (PTPRS) were validated by enzyme-linked immunosorbent assay (ELISA) using saliva samples from oral cancer patients who are tobacco users.Results:Proteomic analysis of tobacco-treated and -untreated cells led to the identification of 2873 proteins. Among these, 378 proteins showed high abundance and 253 proteins showed low abundance (2-fold cutoff) in conditioned-media of tobacco-treated cells. ELISA-based validation showed significantly higher levels of SPOCK1, PSAP, and PTPRS in oral cancer patients with tobacco chewing habits compared to he...

【 授权许可】

CC BY