These findings revealed that only the IL-6 level in the peripheral blood plasma of NSCLC patients was significantly elevated compared to samples from healthy volunteers (Fig. 2c), whereas no differences were observed in the levels of other cytokines with the potential to impact NK cell function, such as IL-4, IL-8, IL-10, or IL-13. Here, CXCL8 is linked to non-small cell lung carcinoma.