S142 – Circulating Levels of CD105 and VEGF in Oral Cancer
Objectives To evaluate the circulating levels of CD105 and VEGF in patients with oral cancer and analyze the correlation between these circulating levels and clinicopathological features. Methods Between 2006 January and 2007 December, 28 healthy volunteers and 68 patients with squamous cell carcinoma of oral cavity (OSCC) were enrolled in this study. The serum level of VEGF and plasma level of CD105 were determined by ELISA method, respectively, from the frozen stored blood before treatment. ANOVA analysis was used to evaluate the difference of circulating levels of CD105 and VEGF between normal control group and OSCC group. The difference between nodal status (positive versus negative), tumor stage (T1, T2 versus T3, T4) and TNM stage (stage I, II vs. stage III, IV) were also evaluated. Results The circulating levels of CD105 and VEGF in normal control group were 1.457 ± 0.46 ng/ml and 44.89 ± 20.4 pg/ml, respectively. The circulating levels of CD105 and VEGF in OSCC group were 7.056 ± 3.44 ng/ml and 292.94 ± 117.3 pg/ml, respectively. Both circulating levels of CD105 and VEGF in patients with OSCC were significantly higher than those of normal control group (both p<0.001). In addition, the patients with positive nodal status (p<0.001), advanced tumor stage (T3, T4 versus T1, T2) (p<0.001), and advanced TNM stage (stage III, IV versus stage I, II) (p<0.001) had significantly higher circulating levels of CD105 and VEGF. Conclusions Both circulation levels of CD105 and VEGF are useful markers to evaluate the disease progression of OSCC.