SERPINH1 and cancer: SERPINH1 and P3H1 both correlated negatively with tumor purity and positively with CD8+ T cells, B cells, macrophages/monocytes, dendritic cells (DC), cancer associated fibroblasts (CAF), endothelial cells, neutrophils, and natural killer (NK) cells (Figures 5(a) and 5(b)).