SIRT1 and neoplasm: The well‐established tumour suppressors miR‐15 and ‐34 are potent triggers of EC senescence; through repressing the mRNAs E2F, c‐Myc, Sirtuin 1 (SIRT1), Cdk4, Cdk6, Bcl‐2, hepatocyte growth factor receptor (Met), and cyclins D1 and E2 14, 33.