Abstract
We tested for squamous cell carcinoma-related antigen (SCC), carcinoembryonic antigen (CEA), ferritin, immunosuppressive acid protein (IAP) and sialic acid in the serum from 247 patients with head and neck squamous cell carcinoma prior to therapy. Significant correlations were found between IAP and tumor size, lymph node metastasis, and clinical stage ( P<0.0001, P<0.001, and P<0.0001). Also, sialic acid and SCC were also correlated with tumor size, lymph node metastasis, and clinical stage. Moreover IAP, sialic acid and SCC were strongly associated with survival rate ( P<0.0001, P=0.0230 and P=0.0159). A multivariate Cox proportional hazard model demonstrated that being positive for IAP was an independent predictor for patients with H&NSCC ( P=0.0115). The results indicate that IAP, sialic acid and SCC are useful as prognostic factors.
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