The current study investigates the underlying mechanisms of CD133's anti-apoptotic activity in patient-derived BAKP melanoma, harboring the difficult-to-treat NRASQ61K driver mutation...Further, in vivo studies with nude mice xenografted with Dox-inducible BAKP melanoma cells, showed significantly decreased tumor growth after xenografted mice were treated with trametinib alone or in combination with AZD5363.