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  • Title: Circulating Anti-Matrix Metalloproteinase-7 Antibodies May Be a Potential Biomarker for Oral Squamous Cell Carcinoma.
    Author: Jiang T, Xie P, Liu H.
    Journal: J Oral Maxillofac Surg; 2016 Mar; 74(3):650-7. PubMed ID: 26454036.
    Abstract:
    PURPOSE: The present study was conducted to evaluate the diagnostic and prognostic values of serum autoantibody against matrix metalloproteinase-7 (MMP-7) in patients with oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS: Anti-MMP-7 antibodies were measured in sera from 204 patients with OSCC and 212 normal controls using enzyme-linked immunosorbent assay, and clinicopathologic characteristics were correlated. Prognostic consequence was assessed with Kaplan-Meier curve and log-rank tests using Cox proportional hazard models. To check whether anti-MMP-7 antibody was related to tumor associated antigen, real-time polymerase chain reaction and western blot were used to measure MMP-7 mRNA and protein expression in tumor tissues from all 204 patients with OSCC. RESULTS: Serum anti-MMP-7 antibody was higher in patients with OSCC (P < .05), and those with poorly differentiated tumors had more anti-MMP-7 antibody than those with well to moderate tumor differentiation (P < .01, P < .01, respectively). Patients with OSCC at late TNM stages (III, IV) and lymph node metastases had relatively higher serum anti-MMP-7 antibody levels than those with earlier stages (I, II) and those who lacked lymph node metastases (P < .05 for the 2 comparisons). OSCC prediction sensitivity as measured by receiver operating characteristics analysis was 0.485 and specificity was 0.896 (area under the curve, 0.761; 95% confidence interval, 0.716 to 0.806). Cox analysis showed that serum anti-MMP-7 antibody positivity independently predicted poor overall survival in patients with OSCC (hazard ratio, 1.82; 95% confidence interval, 1.07 to 4.61). MMP-7 mRNA and protein expression was increased in tumor tissues from patients with OSCC and high serum anti-MMP-7 antibody. CONCLUSION: Serum anti-MMP-7 antibody might be a novel diagnostic and prognostic biomarker for OSCC.
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