Chinese Journal of Tissue Engineering Research ›› 2013, Vol. 17 ›› Issue (3): 412-418.doi: 10.3969/j.issn.2095-4344.2013.03.006

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Paclitaxel poly lactide-co-glycolic acid nanoparticles inhibit human hepatocellular carcinoma cells HepG2

Pang Li-yun, Wang Hai, Chen Yong-xia, Liu Shuai, Yang Jing, Sun Hong-fan   

  1. Pang Li-yun, Assistant researcher, Tianjin Key Laboratory of Biomaterial Research, the Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
    Liyun_pang@163.com
  • Received:2012-09-01 Revised:2012-12-15 Online:2013-01-15 Published:2013-01-15
  • Contact: Corresponding author: Yang Jing, Associate researcher, Master’s supervisor, Tianjin Key Laboratory of Biomaterial Research, the Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China yangjing37@hotmail.com Corresponding author: Sun Hong-fan, Researcher, Master’s supervisor, Tianjin Key Laboratory of Biomaterial Research, the Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China sunhf@bme.org.cn
  • About author:Pang Li-yun, Assistant researcher, Tianjin Key Laboratory of Biomaterial Research, the Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China Liyun_pang@163.com

Abstract:

BACKGROUND: The conventional paclitaxel injection is toxic and easy to cause allergic reactions.
OBJECTIVE: To prepare paclitaxel poly lactide-co-glycolic acid (PLGA) nanoparticles and to investigate its inhibitory and apoptotic effects on human hepatocellular carcinoma cells HepG2.
METHODS: The MTT method was used to determine the inhibitory effects of 0, 3.125, 6.25, 12.5, 25, 50, 100 mg/L paclitaxel PLGA nanoparticles or paclitaxel on hepatocellular carcinoma cells HepG2. After 25 mg/L paclitaxel PLGA nanoparticle and paclitaxel action, the morphological changes were observed; while after 0, 12.5, 25, 50 mg/L paclitaxel PLGA nanoparticle action, the apoptosis of cells was measured.
RESULTS AND CONCLUSION: The MTT assay indicated that 3.125-100 mg/L paclitaxel PLGA nanoparticles could significantly inhibit the growth of HepG-2 cells and sustain their own release. Its inhibitory rate increased with time and after 72 hours arrived the peak, but paclitaxel alone had no inhibitory influence on HepG-2 cells. After paclitaxel PLGA nanoparticle and paclitaxel action, the typical morphologies of apoptotic cells were visible, and this phenomenon showed a time-dependent effect. Paclitaxel PLGA nanoparticle (12.5, 25, 50 mg/L) could significantly induce apoptosis in a dose- and time-dependent manner. The higher the concentration and the longer the time, the more obvious the effect was.

Key words: biomaterials, nano-biological materials, paclitaxel, poly lactide-co-glycolic acid copolymer, nanoparticles, apoptosis, hepatic carcinoma, sustained-release drugs, National Natural Science Foundation of China, biomaterial photographs-containing paper

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