Cancer cells expressed multiple SASP-associated CC (e.g., CCL20) and CXC (e.g., CXCL1, CXCL8, CXCL16) chemokines, which have been shown to be induced by radiotherapy in preclinical models (20, 21, 36–38) (Figure 1B). The gene discussed is CXCL1; the disease is cancer.