Preparation and evaluation of arsenic trioxide glioma targeting drug delivery system loaded by PAMAM dendrimers co-modified with RGDyC and PEG / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 1618-1625, 2018.
Article
in Chinese
| WPRIM
| ID: wpr-687256
ABSTRACT
Arsenic trioxide (ATO) is an effective component of traditional Chinese medicine arsenic. The existing studies have shown its good inhibition and apoptosis ability on a variety of tumours. However, its toxicity and difficulties in the permeability into the blood brain barrier (BBB) has the limitation in the application of glioma treatment. Polyamide-amine dendrimer (PAMAM) is a synthetic polymer with many advantages, such as a good permeability, stability and biocompatibility. Additionally, the 5th generation of PAMAM is an ideal drug carrier due to its three-dimensional structure. In this study, the 5th generation of PAMAM co-modified with RGDyC and PEG, then confirmed by ¹H-NMR. The average particle size of nanoparticles was about 20 nm according to the nanoparticle size-potential analyser and transmission electron microscopy. release showed that the nanocarrier not only has the sustained release effect, but also some pH-sensitive properties. The cell results showed that PAMAM co-modified with RGDyC and PEGAM has a lower cytotoxicity than the non-modified group . Accordingly, the drug delivery system has a better anti-tumour effect across the blood brain barrier (BBB) , which further proves the tumour targeting of RGDyC.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
China Journal of Chinese Materia Medica
Year:
2018
Type:
Article
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