STAT3 and cancer: Furthermore, the IL6/JAK2/STAT3 pathways was also found to be associated with cancer stem cell functions mediated by other stem cell biomarkers, such as CD44,28 CD24 33 and EpCAM.34 The prevalent functions of IL6/JAK2/STAT3 pathways in multiple stem cell marker‐related processes suggested that this pathway might act as an interacting hub for integrating various stem cell signalling components during cancer stem cell growth and renewal, which merits further investigation.