,32 We have previously identified a subset of mesenchymal cells co-expressing thymocyte differentiation antigen 1 (THY1, encoding CD90) and the ecto-5′-nucleotidase (NT5E, encoding CD73) with an abnormal perivascular-like function that also expressed PD-L1 in human NSCLC.27 Here, NT5E is linked to non-small cell lung carcinoma.