Abstract
BackgroundSerum soluble CD40 ligand (sCD40L) concentrations are increased in patients with nasopharyngeal carcinoma (NPC). This study further evaluated the relationship between plasma sCD40L concentrations and long-term survival of NPC. MethodsPlasma sCD40L concentrations of 312 patients and 312 healthy controls were determined using an ELISA. The associations of plasma sCD40L concentrations with 5-year overall survival, progression-free survival, distant metastasis-free survival, and locoregional relapse-free survival were investigated by univariate and multivariate analyses. ResultsPlasma sCD40L concentrations were substantially higher in patients than in healthy subjects and also correlated highly with tumor classification, lymph node classification and tumor node metastasis stage. sCD40L emerged as an independent predictor for 5-year overall survival, progression-free survival, distant metastasis-free survival, and locoregional relapse-free survival using univariate and multivariate Cox regression analysis. ConclusionsHigh plasma sCD40L concentration is correlated with stage progression of NPC as well as associated with poor survival of NPC. It is suggested that sCD40L should have the potential to be a prognostic biomarker for NPC.
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