Fig. 2From: Tumor-derived small extracellular vesicles promote breast cancer progression by upregulating PD-L1 expression in macrophagesBC cells inducing M2 type differentiation in vivo to promote metastasis. (A) Schematic diagram of the in vivo experiments. (B) The body weight changes of mice after tail vein injection. (C-D) In vivo imaging and total flux of mice showing the load of tumor cells. (E) Representative images of lung metastasis in mice. (F) Quantification of lung metastasis in mice. (G) The characteristics of lung metastasis in mice analyzed by H&E stainingBack to article page