[Tumor metastasis in patients with non-small cell lung cancer is inversely correlated with the number of tumor-infiltrating CD8 T cells].

Objective To analyze the relationship between the number of invasive T cells in in situ tumors and the clinical metastasis and prognosis in patients with non-small cell lung cancer (NSCLC). Methods A total of 140 lung cancer patients (including 43 cases with metastasis) were selected to observe the infiltration state of CD4 T cells and CD8 T cells in tumor tissues by immunohistochemical staining. The infiltration of CD4 T cells and CD8 T cells were compared between non-metastatic and metastatic patients.