Clinical significance of baseline Epstein-Barr virus DNA for recurrent or metastatic primary pulmonary lymphoepithelioma-like carcinoma
FUTURE ONCOLOGY(2023)
Abstract
Background: This study aimed to evaluate the clinical significance of baseline Epstein-Barr virus (EBV) DNA in recurrent or metastatic primary pulmonary lymphoepithelioma-like carcinoma (PLELC). Methods: 75 patients with baseline EBV DNA were included. The relationships between baseline EBV DNA and clinical characteristics, survival and objective response rate were analyzed. Results: The baseline EBV DNA levels were related to the liver, chest wall, distant lymph node(s) or multiple sites of distant metastasis. The high baseline EBV DNA group (>= 41,900 copies/ml) was related to shorter progression-free and overall survival in univariate analysis and remained significant for progression-free survival in multivariate analysis. Conclusion: The baseline EBV DNA is a valuable biomarker for predicting prognosis and reflecting tumor burden in recurrent or metastatic PLELC. In this study, the baseline plasma EBV DNA level was related to tumor burden, and it was an independent prognostic indicator for PFS in recurrent or metastatic primary pulmonary lymphoepithelioma-like carcinoma.
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Key words
Epstein-Barr virus DNA,primary pulmonary lymphoepithelioma-like carcinoma,prognosis,tumor biomarker,tumor burden
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