fig4

Figure 4. Zebrafish ABCG2 homologs do not functionally mimic human ABCG2. Three-day cytotoxicity assays were performed with gedatolisib, THZ1, THZ531, mitoxantrone, SN-38, or topotecan on empty-vector-transfected HEK293 cells (Vector), or HEK293 cells that express human ABCG2 (R5), zebrafish Abcg2a (ZF Abcg2a), Abcg2b (ZF Abcg2b), Abcg2c (ZF Abcg2c), or zebrafish Abcg2d (ZF Abcg2d).