Correction to: Pre-metastatic niche triggers SDF-1/CXCR4 axis and promotes organ colonisation by hepatocellular circulating tumour cells via downregulation of Prrx1.

Yujun Tang, Yishi Lu, Yuan Chen and Lei Luo contributed equally to this work. Bars represent number of migrated cells. f Drug resistance (epirubicin) was evaluated in indicated cells by CCK-8 assay. g Phase-contrast images of sphere-forming assays of indicated cells. h Western blotting was performed to detect the expression of stemness markers. [Extracted from the article]