Fig. 4

IL-17A promotes resistance to daunorubicin. Nalm-6 cells and patient B-ALL cells isolated from 4 B-ALL patients were cultured for 24 h in complete medium with or without IL-17A at 50 ng/ml and subsequently supplemented with daunorubicin at 100, 200, or 400 nM as indicated for 24 h. The cell viability was determined using CCK-8 assay, and apoptosis was determined using Annexin V staining. IL-17A promoted the proliferation and reduced apoptosis of Nalm-6 cells (a, c) and patient B-ALL cells (b, d). Statistical data representing at least 3 independent experiments were shown