Long-circulating 15 nm micelles based on amphiphilic 3-helix peptide-PEG conjugates.
Long-circulating 15 nm micelles based on amphiphilic 3-helix peptide-PEG conjugates.
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DOI:
10.1021/nn301142r
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发表时间:
2012-06-26
期刊:
影响因子:
17.1
通讯作者:
Xu T
中科院分区:
文献类型:
--
作者:
Dong H;Dube N;Shu JY;Seo JW;Mahakian LM;Ferrara KW;Xu T
Generating stable, multi-functional organic nanocarriers will have a significant impact on drug formulation. However, it remains a significant challenge to generate organic nanocarriers with a long circulation half-life, effective tumor penetration and efficient clearance of metabolites. We have advanced this goal by designing a new family of amphiphiles based on coiled-coil 3-helix bundle forming peptide-poly(ethylene glycol) conjugates. The amphiphiles self-assemble into monodisperse micellar nanoparticles, 15 nm in diameter. Using the 3-helix micelles, a drug loading of ~8 wt% was obtained using doxorubicin (DOX) and the micelles showed minimal cargo leakage after 12 hours of incubation with serum proteins at 37°C. In vivo pharmacokinetics studies using positron emission tomography (PET) showed a circulation half-life of 29.5 hrs and minimal accumulation in the liver and spleen. The demonstrated strategy, by incorporating unique protein tertiary structure in the headgroup of an amphiphile, opens new avenues to generate organic nanoparticles with tunable stability, ligand clustering and controlled disassembly to meet current demands in nanomedicine.
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DOI:
10.1039/f29767201525
发表时间:
1976-01-01
期刊:
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II
影响因子:
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作者:
ISRAELACHVILI, JN;MITCHELL, DJ;NINHAM, BW
通讯作者:
NINHAM, BW
影响因子:
4.4
作者:
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通讯作者:
Zalipsky, Samuel
影响因子:
6.2
作者:
Castelletto, Valeria;Krysmann, Marta;Jauregi, Paula
通讯作者:
Jauregi, Paula
影响因子:
41.2
作者:
通讯作者:
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影响因子:
38.3
作者:
通讯作者:
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