Predictive value of CD73 expression for the efficacy of immune checkpoint inhibitors in NSCLC

BackgroundCD73 induces the dephosphorylation of adenosine monophosphate converting it to adenosine, enabling malignancies to escape from immune surveillance. Although CD73 overexpression has been reported to be a poor prognostic factor in several malignancies including non ‐small cell lung cancer (NSCLC), its predictive relevance in NSCLC patients receiving immune checkpoint inhibitors is unknown. The present research was conducted to investigate the prognostic significance of CD73 expression in NSCLC patients receiving immune checkpoint inhibitors (ICIs).MethodsWe screened 91 patients with advanced or recurrent NSCLC who received immune checkpoint inhibitors. CD73 expression was evaluated immunohistochemically using tissue specimens obtained just before treatment with ICIs.ResultsAnalysis of progression ‐free survival (PFS) and overall survival (OS) in relation to several levels of CD73 expression (1%, 10%, 30%, and 50%) showed that both tended to be more favorable as expression of CD73 increased. PFS and OS were longer for patients in whom at least 50% of the tumor cells expressed CD73 than for those in whom
Source: Thoracic Cancer - Category: Cancer & Oncology Authors: Tags: ORIGINAL ARTICLE Source Type: research

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Source: Thoracic Cancer - Category: Cancer & Oncology Authors: Tags: ORIGINAL ARTICLE Source Type: research
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