Targeting Systems to the Brain Obtained by Merging Prodrugs, Nanoparticles, and Nasal Administration

About 40 years ago the lipidization of hydrophilic drugs was proposed to induce their brain targeting by transforming them into lipophilic prodrugs. Unfortunately, lipidization often transforms a hydrophilic neuroactive agent into an active efflux transporter (AET) substrate, with consequent rejecti...

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Main Authors: Giada Botti, Alessandro Dalpiaz, Barbara Pavan
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Pharmaceutics
Subjects:
Online Access:https://www.mdpi.com/1999-4923/13/8/1144
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author Giada Botti
Alessandro Dalpiaz
Barbara Pavan
author_facet Giada Botti
Alessandro Dalpiaz
Barbara Pavan
author_sort Giada Botti
collection DOAJ
description About 40 years ago the lipidization of hydrophilic drugs was proposed to induce their brain targeting by transforming them into lipophilic prodrugs. Unfortunately, lipidization often transforms a hydrophilic neuroactive agent into an active efflux transporter (AET) substrate, with consequent rejection from the brain after permeation across the blood brain barrier (BBB). Currently, the prodrug approach has greatly evolved in comparison to lipidization. This review describes the evolution of the prodrug approach for brain targeting considering the design of prodrugs as active influx substrates or molecules able to inhibit or elude AETs. Moreover, the prodrug approach appears strategic in optimization of the encapsulation of neuroactive drugs in nanoparticulate systems that can be designed to induce their receptor-mediated transport (RMT) across the BBB by appropriate decorations on their surface. Nasal administration is described as a valuable alternative to obtain the brain targeting of drugs, evidencing that the prodrug approach can allow the optimization of micro or nanoparticulate nasal formulations of neuroactive agents in order to obtain this goal. Furthermore, nasal administration is also proposed for prodrugs characterized by peripheral instability but potentially able to induce their targeting inside cells of the brain.
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spelling doaj.art-bc066b5044cd47e7aea201825df8b1212023-11-22T09:13:08ZengMDPI AGPharmaceutics1999-49232021-07-01138114410.3390/pharmaceutics13081144Targeting Systems to the Brain Obtained by Merging Prodrugs, Nanoparticles, and Nasal AdministrationGiada Botti0Alessandro Dalpiaz1Barbara Pavan2Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara 19, I-44121 Ferrara, ItalyDepartment of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara 19, I-44121 Ferrara, ItalyDepartment of Neuroscience and Rehabilitation—Section of Physiology, University of Ferrara, Via L. Borsari 46, I-44121 Ferrara, ItalyAbout 40 years ago the lipidization of hydrophilic drugs was proposed to induce their brain targeting by transforming them into lipophilic prodrugs. Unfortunately, lipidization often transforms a hydrophilic neuroactive agent into an active efflux transporter (AET) substrate, with consequent rejection from the brain after permeation across the blood brain barrier (BBB). Currently, the prodrug approach has greatly evolved in comparison to lipidization. This review describes the evolution of the prodrug approach for brain targeting considering the design of prodrugs as active influx substrates or molecules able to inhibit or elude AETs. Moreover, the prodrug approach appears strategic in optimization of the encapsulation of neuroactive drugs in nanoparticulate systems that can be designed to induce their receptor-mediated transport (RMT) across the BBB by appropriate decorations on their surface. Nasal administration is described as a valuable alternative to obtain the brain targeting of drugs, evidencing that the prodrug approach can allow the optimization of micro or nanoparticulate nasal formulations of neuroactive agents in order to obtain this goal. Furthermore, nasal administration is also proposed for prodrugs characterized by peripheral instability but potentially able to induce their targeting inside cells of the brain.https://www.mdpi.com/1999-4923/13/8/1144lipidizationprodruginflux transportersactive efflux transportersreceptor-mediated transportmicro and nanoparticles
spellingShingle Giada Botti
Alessandro Dalpiaz
Barbara Pavan
Targeting Systems to the Brain Obtained by Merging Prodrugs, Nanoparticles, and Nasal Administration
Pharmaceutics
lipidization
prodrug
influx transporters
active efflux transporters
receptor-mediated transport
micro and nanoparticles
title Targeting Systems to the Brain Obtained by Merging Prodrugs, Nanoparticles, and Nasal Administration
title_full Targeting Systems to the Brain Obtained by Merging Prodrugs, Nanoparticles, and Nasal Administration
title_fullStr Targeting Systems to the Brain Obtained by Merging Prodrugs, Nanoparticles, and Nasal Administration
title_full_unstemmed Targeting Systems to the Brain Obtained by Merging Prodrugs, Nanoparticles, and Nasal Administration
title_short Targeting Systems to the Brain Obtained by Merging Prodrugs, Nanoparticles, and Nasal Administration
title_sort targeting systems to the brain obtained by merging prodrugs nanoparticles and nasal administration
topic lipidization
prodrug
influx transporters
active efflux transporters
receptor-mediated transport
micro and nanoparticles
url https://www.mdpi.com/1999-4923/13/8/1144
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AT barbarapavan targetingsystemstothebrainobtainedbymergingprodrugsnanoparticlesandnasaladministration