Kaempferol and quercetin are ligands that bind NR4A1 and exhibit NR4A1 antagonist activities in Rh30 rhabdomyosarcoma cells [33] and this has previously been observed for other NR4A1 antagonist such as the bis-indole derived compounds that also bind NR4A1 [31]. The gene discussed is NR4A1; the disease is rhabdomyosarcoma.