CD4 and squamous cell lung carcinoma: Then, to eliminate the effect of lung squamous cell carcinoma we used another scRNA-seq dataset from GSE131907 to unravel the expression level in LUAD, indicating that it was relatively higher expressed at CD8 Tex(0.11), CD8 T cells(0.08), B cells(0.08) and CD4 T cells(0.07) over other cells(≤0.05) (Fig. 4e-h).