NOTCH1 and cancer: NIFK-AS1 attenuated M2 polarisation in endometrial cancer-associated macrophages by sponging miR-146a, resulting in upregulation of Notch1 signalling (Zhou et al., 2018) and exosomal lncRNA RPPH1 in colorectal cancer promoted M2 polarisation, causing metastasis of cancer cells (Liang et al., 2019).