Structural Stabilization of Clinically Oriented Oligomeric Proteins During their Transit through Synthetic Secretory Amyloids
Sanchez, Julieta M (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
López-Laguna, Hèctor (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
Parladé Molist, Eloi (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí")
Di Somma, Angela (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí")
Livieri, Andrea (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí")
Álamo, Patricia (Institut de Recerca Sant Pau)
Mangues, Ramon (Institut de Recerca Sant Pau)
Unzueta Elorza, Ugutz (Institut de Recerca Sant Pau)
Villaverde Corrales, Antonio (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí")
Vázquez, Esther (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí")

Date:	2024
Abstract:	Developing time-sustained drug delivery systems is a main goal in innovative medicines. Inspired by the architecture of secretory granules from the mammalian endocrine system it has generated non-toxic microscale amyloid materials through the coordination between divalent metals and poly-histidine stretches. Like their natural counterparts that keep the functionalities of the assembled protein, those synthetic structures release biologically active proteins during a slow self-disintegration process occurring in vitro and upon in vivo administration. Being these granules formed by a single pure protein species and therefore, chemically homogenous, they act as highly promising time-sustained drug delivery systems. Despite their enormous clinical potential, the nature of the clustering process and the quality of the released protein have been so far neglected issues. By using diverse polypeptide species and their protein-only oligomeric nanoscale versions as convenient models, a conformational rearrangement and a stabilization of the building blocks during their transit through the secretory granules, being the released material structurally distinguishable from the original source is proved here. This fact indicates a dynamic nature of secretory amyloids that act as conformational arrangers rather than as plain, inert protein-recruiting/protein-releasing granular depots.
Grants:	Agencia Estatal de Investigación PID2019-105416RB-I00 Agencia Estatal de Investigación PDC2022-133858-I00 Agencia Estatal de Investigación PID2022-136845OB-I00 Agencia Estatal de Investigación PID2020-116174RB-I00 Instituto de Salud Carlos III PI21/00150 Instituto de Salud Carlos III PI20/00400
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Cell-targeting ; Drug delivery ; Microparticles ; Nanoparticles ; Recombinant proteins ; Secretory granules
Published in:	Advanced science, Vol. 11 Núm. 21 (may 2024) , p. 2309427, ISSN 2198-3844

DOI: 10.1002/advs.202309427
PMID: 38501900

11 p, 1.9 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Institut de Biotecnologia i de Biomedicina (IBB)
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Institut de Recerca Sant Pau
Articles > Research articles
Articles > Published articles