Layer-by-layer nanoencapsulation of camptothecin with improved activity.
Layer-by-layer nanoencapsulation of camptothecin with improved activity.
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DOI:
10.1016/j.ijpharm.2014.01.041
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发表时间:
2014-04-25
影响因子:
5.8
通讯作者:
Lvov, Yuri
中科院分区:
文献类型:
--
作者:
Parekh, Gaurav;Pattekari, Pravin;Joshi, Chaitanya;Shutava, Tatsiana;DeCoster, Mark;Levchenko, Tatyana;Torchilin, Vladimir;Lvov, Yuri
160 nm nanocapsules containing up to 60% of camptothecin in the core and 7–8 polyelectrolyte bilayers in the shell were produced by washless layer-by-layer assembly of heparin and block-copolymer of poly-L-lysine and polyethylene glycol. The outer surface of the nanocapsules was additionally modified with polyethylene glycol of 5 kDa or 20 kDa molecular weight to attain protein resistant properties, colloidal stability in serum and prolonged release of the drug from the capsules. An advantage of the LbL coated capsules is the preservation of camptothecin lactone form with the shell assembly starting at acidic pH and improved chemical stability of encapsulated drug at neutral and basic pH, especially in the presence of albumin that makes such formulation more active than free camptothecin. LbL nanocapsules preserve the camptothecin lactone form at pH 7.4 resulting in triple activity of the drug toward CRL2303 glioblastoma cell.
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影响因子:
5
作者:
Bulcke, Felix;Thiel, Karsten;Dringen, Ralf
通讯作者:
Dringen, Ralf
影响因子:
15.6
作者:
KAHLWEIT, M
通讯作者:
KAHLWEIT, M
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作者:
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3.3
作者:
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通讯作者:
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影响因子:
2.9
作者:
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通讯作者:
BURKE, TG