CD8A and hepatocellular carcinoma: By exploring the relationships between ABAT and various immune-related cells in HCC, we determined the levels of infiltrating T cells and their different subgroups: T helper 1 (Th1) cells, T helper 2 (Th2) cells, CD8+ pan T (CD8+ T) cells, and effector memory T (Tem) cells, all of which, along with macrophages, had negative associations with ABAT expression levels.