Bioactive Peptide Brush Polymers via Photoinduced Reversible-Deactivation Radical Polymerization.
Angew Chem Int Ed Engl
; 58(48): 17359-17364, 2019 11 25.
Article
em En
| MEDLINE
| ID: mdl-31595626
ABSTRACT
Harnessing metal-free photoinduced reversible-deactivation radical polymerization (photo-RDRP) in organic and aqueous phases, we report a synthetic approach to enzyme-responsive and pro-apoptotic peptide brush polymers. Thermolysin-responsive peptide-based polymeric amphiphiles assembled into spherical micellar nanoparticles that undergo a morphology transition to worm-like micelles upon enzyme-triggered cleavage of coronal peptide sidechains. Moreover, pro-apoptotic polypeptide brushes show enhanced cell uptake over individual peptide chains of the same sequence, resulting in a significant increase in cytotoxicity to cancer cells. Critically, increased grafting density of pro-apoptotic peptides on brush polymers correlates with increased uptake efficiency and concurrently, cytotoxicity. The mild synthetic conditions afforded by photo-RDRP, make it possible to access well-defined peptide-based polymer bioconjugate structures with tunable bioactivity.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Peptídeos
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Polímeros
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Termolisina
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Nanopartículas
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Micelas
Limite:
Humans
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article