CD8A and neoplasm: Correlation analyses between HAGS and the immune activity revealed that the risk scores in 513 LUAD patients were positively correlated with the levels of the APC co-inhibition, APC co-stimulation, B cells, CCR, CD8+ T cells, checkpoint, cytolytic activity, DCs, HLA, inflammation promotion, macrophages, major histocompatibility complex (MHC) class I, neutrophils, parainflammation, pDCs, T-cell co-inhibition, T-cell co-stimulation, T-helper cells, Tfh, Th1 cells, tumor-infiltrated lymphocyte (TIL), and Treg (p < 0.01, Figure 9).