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1.
Org Biomol Chem ; 19(1): 199-207, 2021 01 06.
Artigo em Inglês | MEDLINE | ID: mdl-33174572

RESUMO

For the inhibition of myostatin, which is an attractive strategy for the treatment of muscle atrophic disorders including muscular dystrophy, myostatin-binding peptides were synthesized with an on/off-switchable photooxygenation catalyst at different positions on the peptide chain. These functionalized peptides oxygenated and inactivated myostatin upon irradiation with near-infrared light. Among the peptides tested, a peptide (5) with the catalyst moiety at the 16 position induced myostatin-selective photooxygenation, and efficiently inhibited myostatin. These peptides exhibited low phototoxicity. Such functionalized peptides would provide a precedented strategy for myostatin-targeting therapy, in which myostatin is irreversibly and catalytically inactivated by photooxygenation.


Assuntos
Miostatina/metabolismo , Oxigênio/metabolismo , Peptídeos/química , Peptídeos/farmacologia , Processos Fotoquímicos , Catálise
2.
Chem Commun (Camb) ; 55(62): 9108-9111, 2019 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-31298230

RESUMO

Inhibition of myostatin is an attractive treatment for muscular dystrophy and other amyotrophic diseases. A myostatin-binding peptide was functionalized by equipped with an on/off switchable photo-oxygenation catalyst. This peptide induces a selective oxygenation of myostatin under near-infrared light, resulting in inactivation of myostatin. This peptide shows several orders of magnitude greater inhibitory effect than the original peptide.


Assuntos
Miostatina/efeitos dos fármacos , Miostatina/efeitos da radiação , Oxigênio/química , Oxigênio/efeitos da radiação , Peptídeos/farmacologia , Processos Fotoquímicos/efeitos da radiação , Catálise/efeitos dos fármacos , Catálise/efeitos da radiação , Humanos , Raios Infravermelhos , Modelos Moleculares , Estrutura Molecular , Miostatina/metabolismo , Peptídeos/química
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