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Lysosomal Storage Disease-Associated Neuropathy: Targeting Stable Nucleic Acid Lipid Particle (SNALP)-Formulated siRNAs to the Brain as a Therapeutic Approach: The Sanfilippo Syndrome example

2020-11Documento de conferência Acesso aberto
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dc.contributor.authorCoutinho, Maria Francisca
dc.contributor.authorSantos, Juliana Inês
dc.contributor.authorMendonça, Liliana Silva
dc.contributor.authorMatos, Liliana
dc.contributor.authorPrata, Maria João
dc.contributor.authorJurado, Amália Silva
dc.contributor.authorPedroso de Lima, Maria da Conceição
dc.contributor.authorAlves, Sandra
dc.date.accessioned2021-03-13T11:24:22Z
dc.date.available2021-03-13T11:24:22Z
dc.date.issued2020-11
dc.description.abstractMore than two thirds of Lysosomal Storage Diseases (LSDs) present central nervous system (CNS) involvement. Nevertheless, only one of the currently approved therapies has an impact on neuropathology. Therefore, alternative approaches are under development, either addressing the underlying enzymatic defect or its downstream consequences. Amongst those LSDs with a marked CNS phenotype, Mucopolysaccharidosis type III, or Sanfilippo syndrome, is a hallmark example of an LSD in desperate need for an effective brain-targeted therapeutic approach. One of the alternative therapeutic approaches for Sanfilippo syndrome, which is under study by different teams, relies on an attempt to block substrate accumulation upstream, by promoting a decrease of its synthesis. This concept is known as substrate reduction therapy and may be triggered by several molecules, such as small interfering RNAs (siRNAs). siRNAs promote RNA interference, a naturally occurring sequence-specific post-transcriptional gene-silencing mechanism, and may target virtually any gene of interest, inhibiting its expression. Still, naked siRNAs have limited cellular uptake, low biological stability, and unfavorable pharmacokinetics. Thus, their translation into clinics requires proper delivery methods. One promising platform is a special class of liposomes called stable nucleic acid lipid particles (SNALPs), which are characterized by high cargo encapsulation efficiency and may be engineered to promote targeted delivery to specific receptors. Here, we review the concept of SNALPs, presenting a series of examples on their efficacy as siRNA nanodelivery systems. By doing so, we hope to unveil the therapeutic potential of these nanosystems for targeted brain delivery of siRNAs in LSDs, with a particular focus on the Sanfilippo syndrome.pt_PT
dc.description.sponsorship2019DGH1629/SPDM2018I&D and 2019DGH1656/SCF2019I&Dpt_PT
dc.description.versionN/Apt_PT
dc.identifier.urihttp://hdl.handle.net/10400.18/7439
dc.language.isoengpt_PT
dc.subjectLysosomal Storage Diseasespt_PT
dc.subjectRNA Therapiespt_PT
dc.subjectMucopolysaccharidosis type IIIpt_PT
dc.subjectSNALPspt_PT
dc.subjectDoenças Genéticaspt_PT
dc.titleLysosomal Storage Disease-Associated Neuropathy: Targeting Stable Nucleic Acid Lipid Particle (SNALP)-Formulated siRNAs to the Brain as a Therapeutic Approach: The Sanfilippo Syndrome examplept_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceGeneva, Suiça (online)pt_PT
oaire.citation.title3rd International Conference on Sanfilippo Syndrome and Related Diseases, 12-13 November 2020pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT

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