Silica-Based Nanoparticles for Protein Encapsulation and Delivery

Although conceptually obvious, the effective delivery of proteins in therapeutic applications is far from being a routine practice. The major limitation is the conservation of protein physicochemical identity during the transport to the target site. In this regard, nanoparticle-based systems offer n...

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Main Authors: Filippo Begarani, Domenico Cassano, Eleonora Margheritis, Roberto Marotta, Francesco Cardarelli, Valerio Voliani
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/8/11/886
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author Filippo Begarani
Domenico Cassano
Eleonora Margheritis
Roberto Marotta
Francesco Cardarelli
Valerio Voliani
author_facet Filippo Begarani
Domenico Cassano
Eleonora Margheritis
Roberto Marotta
Francesco Cardarelli
Valerio Voliani
author_sort Filippo Begarani
collection DOAJ
description Although conceptually obvious, the effective delivery of proteins in therapeutic applications is far from being a routine practice. The major limitation is the conservation of protein physicochemical identity during the transport to the target site. In this regard, nanoparticle-based systems offer new intriguing possibilities, provided that (i) the harsh and denaturating conditions typically used for nanoparticle synthesis are avoided or mitigated; and (ii) nanoparticle biocompatibility and degradation (for protein release) are optimized. Here, we tackle these issues by starting from a nanoparticle architecture already tested for small chemical compounds. In particular, silica-shielded liposomes are produced and loaded with a test protein (i.e., Green Fluorescent Protein) in an aqueous environment. We demonstrate promising results concerning protein encapsulation, protection during intracellular trafficking and final release triggered by nanoparticle degradations in acidic organelles. We believe this proof of principle may open new applications and developments for targeted and efficient protein delivery.
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spelling doaj.art-ed9d91150afc49b0b50ebb92e3e2c11e2022-12-22T00:09:35ZengMDPI AGNanomaterials2079-49912018-11-0181188610.3390/nano8110886nano8110886Silica-Based Nanoparticles for Protein Encapsulation and DeliveryFilippo Begarani0Domenico Cassano1Eleonora Margheritis2Roberto Marotta3Francesco Cardarelli4Valerio Voliani5NEST—Scuola Normale Superiore, Pisa 56100, ItalyNEST—Scuola Normale Superiore, Pisa 56100, ItalyCenter for Nanotechnology Innovation, Istituto Italiano di Tecnologia, Pisa 56100, ItalyElectron Microscopy Facility, Istituto Italiano di Tecnologia, Genova 00161, ItalyNEST—Scuola Normale Superiore, Istituto di Nanoscienze-CNR, Pisa 56100, ItalyCenter for Nanotechnology Innovation, Istituto Italiano di Tecnologia, Pisa 56100, ItalyAlthough conceptually obvious, the effective delivery of proteins in therapeutic applications is far from being a routine practice. The major limitation is the conservation of protein physicochemical identity during the transport to the target site. In this regard, nanoparticle-based systems offer new intriguing possibilities, provided that (i) the harsh and denaturating conditions typically used for nanoparticle synthesis are avoided or mitigated; and (ii) nanoparticle biocompatibility and degradation (for protein release) are optimized. Here, we tackle these issues by starting from a nanoparticle architecture already tested for small chemical compounds. In particular, silica-shielded liposomes are produced and loaded with a test protein (i.e., Green Fluorescent Protein) in an aqueous environment. We demonstrate promising results concerning protein encapsulation, protection during intracellular trafficking and final release triggered by nanoparticle degradations in acidic organelles. We believe this proof of principle may open new applications and developments for targeted and efficient protein delivery.https://www.mdpi.com/2079-4991/8/11/886protein-deliverysilicabiodegradationliposomesLysosomal Storage Disorders (LSDs)
spellingShingle Filippo Begarani
Domenico Cassano
Eleonora Margheritis
Roberto Marotta
Francesco Cardarelli
Valerio Voliani
Silica-Based Nanoparticles for Protein Encapsulation and Delivery
Nanomaterials
protein-delivery
silica
biodegradation
liposomes
Lysosomal Storage Disorders (LSDs)
title Silica-Based Nanoparticles for Protein Encapsulation and Delivery
title_full Silica-Based Nanoparticles for Protein Encapsulation and Delivery
title_fullStr Silica-Based Nanoparticles for Protein Encapsulation and Delivery
title_full_unstemmed Silica-Based Nanoparticles for Protein Encapsulation and Delivery
title_short Silica-Based Nanoparticles for Protein Encapsulation and Delivery
title_sort silica based nanoparticles for protein encapsulation and delivery
topic protein-delivery
silica
biodegradation
liposomes
Lysosomal Storage Disorders (LSDs)
url https://www.mdpi.com/2079-4991/8/11/886
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AT robertomarotta silicabasednanoparticlesforproteinencapsulationanddelivery
AT francescocardarelli silicabasednanoparticlesforproteinencapsulationanddelivery
AT valeriovoliani silicabasednanoparticlesforproteinencapsulationanddelivery