Fig. 4From: Cancer stem cells as key drivers of tumour progressionCross talks between CSCs and the cells in the niche (e.g. endothelial cells, hepatic stellate cells, Kupffer’s cells) and bone marrow derived progenitor cells, BMDCs (myeloid progenitor cells, macrophage progenitor cells, endothelial progenitor cells) mediated by exosomal transfer of signalling molecules to initiate tumour metastasis by establishing the pre-metastatic niche. CSC further promotes the colonisation and metastatic outgrowth by modulation of dormancy, angiogenic switch and immunosurveillanceBack to article page