Fig. 2

Comparison of p-S6 expression in metastatic NSCLC and matched primary cancer. A P-S6 was strongly positive expressed in cell cytoplasm in primary lung SCC (A-a), primary lung ADC (A-b) and mild positive staining in its matched LNM lesions (A-c, A-d). B Whether it is lung SCC or lung ADC, the expression level of p-S6 in metastatic cancer foci is significantly higher than that in primary cancer foci (p = 0.001, p = 0.022, respectively)