Skip to main content
. 2021 May 26;12(6):547. doi: 10.1038/s41419-021-03825-2

Fig. 2. The general multistep process of BC metastasis and exosomes act as regulatory factors.

Fig. 2

Metastasis is a multistep process by which the primary BC cells undergo epithelial–mesenchymal transition (EMT) and dissociate from the initial site, intravasation, survival in the blood or lymphatic circulation, extravasation, and ultimately colonize distant sites. Exosomes from BC cells are crucial orchestrators to condition the pre-metastatic niche microenvironment in metastatic progression. Breast cancer BC, epithelial–mesenchymal transition EMT.