Preparation, Physicochemical Characterization, and Cell Viability Evaluation of Long-Circulating and pH-Sensitive Liposomes Containing Ursolic Acid

Table 4

IC₅₀ values for cancer cell lines^a.

Cell lines	IC50 (µM); Free UA	IC50 (µM); SpHL 20UA1
MDA-MB-231	13.07 ± 1.54^b	8.13 ± 2.3
LNCaP	2.49 ± 0.53^c	2.68 ± 1.06

aEach value represents the mean ± S.D (𝑛=3). ^bThere is a significant difference among the means indicated at the same line (P < 0.05). ^cThere is no significant difference among the means indicated at the same line (P > 0.05).