Recombinant Synthesis of Hybrid Lipid-Peptide Polymer Fusions that Self-Assemble and Encapsulate Hydrophobic Drugs.
Angew Chem Int Ed Engl
; 56(45): 13979-13984, 2017 11 06.
Article
em En
| MEDLINE
| ID: mdl-28879687
ABSTRACT
Inspired by biohybrid molecules that are synthesized in Nature through post-translational modification (PTM), we have exploited a eukaryotic PTM to recombinantly synthesize lipid-polypeptide hybrid materials. By co-expressing yeast N-myristoyltransferase with an elastin-like polypeptide (ELP) fused to a short recognition sequence in E. coli, we show robust and high-yield modification of the ELP with myristic acid. The ELP's reversible phase behavior is retained upon myristoylation and can be tuned to span a 30-60 °C. Myristoylated ELPs provide a versatile platform for genetically pre-programming self-assembly into micelles of varied size and shape. Their lipid cores can be loaded with hydrophobic small molecules by passive diffusion. Encapsulated doxorubicin and paclitaxel exhibit cytotoxic effects on 4T1 and PC3-luc cells, respectively, with potencies similar to chemically conjugated counterparts, and longer plasma circulation than free drug upon intravenous injection in mice.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Peptídeos
/
Polímeros
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Preparações Farmacêuticas
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Lipídeos
Limite:
Animals
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article