A number of oncogenic kinases and transcription factors such as epidermal growth factor receptor (EGFR), extracellular signal‐regulated kinase (ERK), activator protein 1, signal transducer and activator of transcription 3 (STAT3), and nuclear factor‐kappaB (NF‐κB) alleviate growth inhibition of RT by upregulating radioresistance in cancer cells.4, 5, 6, 7. Here, STAT3 is linked to cancer.