MKI67 and neoplasm: The Ki-67 labelling index, which is usually related to the clinical course of tumor, is significantly lower in Luteolin/MPEG-PCL micelle group (22% ±6.5%) than other groups (88% ±7.2% in NS group, 89.3% ±3.2% in blank micelle group, 53% ±6% in free luteolin group) (p < 0.01, Luteolin/MPEG-PCL micelles versus free luteolin, NS and blank micelle).