Solid-phase synthesis of cell-penetrating γ-peptide/antimicrobial peptide conjugates and of cyclic lipodepsipeptides derived from fengycins

This thesis is focused on the development of synthetic approaches to obtain new bioactive peptides. The first part deals with the design of new antimicrobial peptide/cell-penetrating peptide conjugates as anticancer agents. Their conjugation enhanced the activity of the antimicrobial peptides agains...

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Detalles Bibliográficos
Autor: Rosés Subirós, Cristina
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:CBUC, CESCA
Repositorio:TDR. Tesis Doctorales en Red
OAI Identifier:oai:www.tdx.cat:10803/393895
Acceso en línea:http://hdl.handle.net/10803/393895
Access Level:acceso abierto
Palabra clave:Cell-penetrating peptide
CPP
Anticancer peptide
Pèptids anticancerígens
Péptidos anticancerígenos
Antimicrobial peptide
Pèptids antimicrobians
Péptidos antimicrobianos
Fengycin
Fengicina
Depsipeptide
Depsipèptid
Depsipéptido
Solid-phase synthesis
Síntesi de fase sòlida
Síntesis en fase sólida
Bioactive peptides
Pèptids bioactius
Péptidos bioactivos
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Descripción
Sumario:This thesis is focused on the development of synthetic approaches to obtain new bioactive peptides. The first part deals with the design of new antimicrobial peptide/cell-penetrating peptide conjugates as anticancer agents. Their conjugation enhanced the activity of the antimicrobial peptides against cancer cells while maintained their low toxicity. These compounds are interesting for the design of new anticancer agents. On the second part, a new versatile methodology for the synthesis of natural fengycin derivatives is described. Our strategy represents the first synthetic approach for the total solid-phase synthesis of these cyclic lipodepsipeptides and can be easily adapted to obtain a wide range of analogues.