PDf - 299K, Supplementary Fig. S1, establishment of a multiplexed bead-based system for auto-Ab detection. Supplementary Fig. S2, measurement of salivary levels of auto-Abs in OSCC patients. Supplementary Fig. S3, efficacy of auto-Abs as early-detection markers of OSCC. Supplementary Fig. S4. efficacy of auto-Abs as early-detection markers of OSCC.
ARTICLE ABSTRACTBackground: Oral cavity squamous cell carcinoma (OSCC) is one of the most common cancers worldwide, and its incidence is still increasing. Approximately 50% of patients with OSCC die within 5 years after diagnosis, mostly ascribed to the fact that the majority of patients present advanced stages of OSCC at the time of diagnosis.Methods: To discover salivary biomarkers for ameliorating the detection of OSCC, herein, we developed a multiplexed bead-based platform to simultaneously detect auto-antibodies (auto-Abs) in salivary samples.Results: Compared with healthy individuals, the salivary levels of anti-p53, anti-survivin, anti-Hsp60, and anti-RPLP0 were significantly elevated in patients with OSCC. Noteworthily, the elevated levels of anti-p53, anti-survivin, and anti-Hsp60 were already observed in individuals with oral potentially malignant disorder. Moreover, the salivary levels of anti-p53, anti-survivin, anti-Hsp60, anti-RPLP0, and anti-CK8 were significantly elevated in patients with early-stage OSCC compared with those in healthy individuals. Most importantly, the use of a combined panel of salivary anti-p53, anti-survivin, anti-Hsp60, and anti-RPLP0 largely improves the detection of OSCC.Conclusion: Collectively, our results reveal that the salivary auto-Abs are effective OSCC biomarkers and the four-auto-Ab panel provides a novel and practicable approach for OSCC screening.Impact: This study provides the first evidence for the potential clinical application of salivary auto-Abs in OSCC diagnosis. Cancer Epidemiol Biomarkers Prev; 23(8); 1569–78. ©2014 AACR.