The ETS2 plasmid, encoding the full-length human ETS2 gene, was obtained from Addgene (28128). Truncated plasmids were constructed using Gibson assembly Master Mix (E2621; New England Biolabs). MicroRNA-223 (miR-223) reporter plasmid was obtained by subcloning the miR-223 promoter into pGL3-Basic vector. Luciferase assays were performed using the luciferase assay system (E1980; Promega). The Adeno-X Adenoviral System 3 kit (632267; Clontech) was used to generate an adenoviral vector expressing ETS2 (AdETS2) or mutated ETS2 (AdETS2 T72A and AdETS2 T72E).
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