K Capillary-like structures in HUVECs treated with the tumor-conditioned medium (TCM) from control HCCs and METTL3-knockdown HCCs cultured under hypoxic conditions for 48 h. Quantification of the number of tubes with image J in K-1. Data information: In all relevant panels, *p<0.05; **p<0.01; ***p<0.001; ****p<0.0001; Two-tailed t-test. Data are presented as mean ± SD and are representative of 3 independent experiments. 