MKI67 and neoplasm: Ki-67 is widely usedto estimate the potential proliferation of a tumor cell population;in many tumors, the percentage of Ki-67-positivecells is correlated with parameters reflecting tumor aggressivenessor progression.49 In our study, the Ki-67 reduction in the Dox and Dox-CMC-h-BN-treated U87-MG cells has been attributed to an inhibitedproliferation of these cells.