These findings were subsequently validated in our cohort, where we observed that the GSDME H score was positively correlated with the proportion of CD4+ T cells in SCLC (Y = 0.1245 * X+14.50, P = 0.0208) (Figure 2C) and the proportion of CD4+Ki67+ T cells (Y = 0.05894 * X+0.07415, P = 0.0290) (Figure 2D). Here, CD4 is linked to small cell lung carcinoma.