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mV, respectively, and the encapsulation efficiency and drug loading content were 87.9% and 0.57%. The final concentration of LM was 63.4 μg/mL. The release results showed 58.59% drug was released in 12 h. MTT results showed that the IC50 of LM@Lip on HepG2 and A549 cells was 20.16 and 15.39 μg/mL, respectively, and its in vitro antitumor was superior to that of LM. Conclusion Liposomes can increase the stability and solubility of LM. LM@Lip showed slow-release profile and significant tumor inhibition superior to LM. Key words: limonin; liposomes; thin-film dispersion method; orthogonal experiment; in vitro release; antitumor; druggability