The heatmap displayed that GPX4 expression was highly correlated with the levels of numerous chemokines and chemokine receptors, such as CXCL16, CCL28, CX3CL1, CCL5, CCR10, CXCR5, and CXCR3, across the majority of cancer types (Supplementary Figure S7). The gene discussed is CXCR5; the disease is cancer.