CD274 and non-small cell lung carcinoma: Thus, with respect to PD-L1 the sEVs from NSCLC patientplasma had a linearized NPX value of 24.0 while the RIPA negativecontrol was 1.2, confirming PD-L1 expression in the studied sEVs.Similarly, CD73 gave a clear signal from the sEVs sample above theRIPA negative control with linearized NPX values of 2578.3 and 1.4,respectively.