NDLI: New strategy of photodynamic treatment of TiO<sub>2</sub> nanofibers combined with celastrol for HepG2 proliferation in vitro

Content Provider	Royal Society of Chemistry (RSC)
Author	Lu, Xiaohua Li, Jingyuan Wang, Xuemei Chen, Baoan Jiang, Hui Zhu, Yudan
Copyright Year	2011
Abstract	As one of the best biocompatible semiconductor nanomaterials, TiO2 nanofibers can act as a good photosensitizer material and show potential application in the field of drug carriers and photodynamic therapy to cure diseases. Celastrol, one of the active components extracted from T. wilfordii Hook F., was widely used in traditional Chinese medicine for many diseases. In this study, the cytotoxicity of celastrol for HepG2 cancer cells was firstly explored. The results showed that celastrol could inhibit cancer cell proliferation in a time-dependent and dose-dependent manner, inducing apoptosis and cell cycle arrest at G2/M phase in HepG2 cells. After the TiO2 nanofibers were introduced into the system of celastrol, the cooperation effect showed that the nanocomposites between TiO2 nanofibers and celastrol could enhance the cytotoxicity of celastrol for HepG2 cells and cut down the drug consumption so as to reduce the side-effect of the related drug. Associated with the photodynamic effect, it is evident that TiO2 nanofibers could readily facilitate the potential application of the active compounds from natural products like celastrol. Turning to the advantages of nanotechnology, the combination of nanomaterials with the related monomer active compounds of promising Chinese medicine could play an important role to explore the relevant mechanism of the drug cellular interaction and promote the potential application of TiO2 nanofibers in the clinical treatment.
Starting Page	3115
Ending Page	3122
Page Count	8
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	3
Issue Number	8
Journal	Nanoscale
DOI	10.1039/c1nr10185d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Semiconductor Photodynamic therapy Cell cycle Traditional Chinese medicine Biocompatibility Nanomaterials Cytotoxicity Monomer Photosensitizer Nanotechnology Cancer Apoptosis
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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