CXCL2 and neoplasm: Here, miR‐3473b inhibitor significantly reduced the exosome‐mediated inflammatory genes including Il6, Ccl1, Ccl2, Ccl5 and Cxcl2 expression in fibroblasts (Figure 4F), which suggest the potential role of exosomal miR‐3473b in establishing tumour‐promoting inflammation environment.