Preparation of Hydroxycamptothecin-Loaded Nanoparticles with Enhanced Antiproliferative Effect on LoVo Human Colon Cancer Cells
摘要
To synthesize hydroxycamptothecin-loaded ã-PGA-PAE nanoparticles to improve the therapeutic efficacy of 10-hydroxycamptothecin (HCPT) against the tumors. Nanoparticles were evaluated for in vitro anticancer activity and induction of apoptosis against LoVo human colon cancer cells. The results showed that HCPT/PGA-PAE nanoparticles (HCPT-NPs), with a particle size of 187.5 nm and a PDI of 0.278, were successfully prepared with a relatively uniform size distribution and a good dispersibility. The drug release profile of HCPT-NPs in vitro was sustained-release, with pH having an effect. Compared to ã-PGA-PAE nanomaterials or free HCPT, HCPT-NPs exhibited higher inhibiting colon cell growth performance in vitro. These results suggest that HCPT-loaded nanoparticles represent a new approach for improved delivery of anticancer drugs and therapeutic efficacy.