In order to confirm the limited impact of repressing PIM kinases on NHL cell proliferation, two structurally similar kinase inhibitors, SMI4a, and PIM1/2 inhibitor VI (inh VI), and another structurally distinct inhibitor, Quercetagetin, were tested in the same cell lines (Additional file 1: Figures S2, S3). The gene discussed is PIM1; the disease is non-Hodgkin lymphoma.