Alpha-Synuclein Targeting Therapeutics for Parkinson's Disease and Related Synucleinopathies

α-Synuclein (asyn) is a key pathogenetic factor in a group of neurodegenerative diseases generically known as synucleinopathies, including Parkinson's disease (PD), dementia with Lewy bodies (DLB) and multiple system atrophy (MSA). Although the initial triggers of pathology and progression are...

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Main Authors: Sindhu Menon, Sabrina Armstrong, Amir Hamzeh, Naomi P. Visanji, Sergio Pablo Sardi, Anurag Tandon
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-05-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2022.852003/full
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author Sindhu Menon
Sabrina Armstrong
Amir Hamzeh
Naomi P. Visanji
Naomi P. Visanji
Naomi P. Visanji
Sergio Pablo Sardi
Anurag Tandon
Anurag Tandon
author_facet Sindhu Menon
Sabrina Armstrong
Amir Hamzeh
Naomi P. Visanji
Naomi P. Visanji
Naomi P. Visanji
Sergio Pablo Sardi
Anurag Tandon
Anurag Tandon
author_sort Sindhu Menon
collection DOAJ
description α-Synuclein (asyn) is a key pathogenetic factor in a group of neurodegenerative diseases generically known as synucleinopathies, including Parkinson's disease (PD), dementia with Lewy bodies (DLB) and multiple system atrophy (MSA). Although the initial triggers of pathology and progression are unclear, multiple lines of evidence support therapeutic targeting of asyn in order to limit its prion-like misfolding. Here, we review recent pre-clinical and clinical work that offers promising treatment strategies to sequester, degrade, or silence asyn expression as a means to reduce the levels of seed or substrate. These diverse approaches include removal of aggregated asyn with passive or active immunization or by expression of vectorized antibodies, modulating kinetics of misfolding with small molecule anti-aggregants, lowering asyn gene expression by antisense oligonucleotides or inhibitory RNA, and pharmacological activation of asyn degradation pathways. We also discuss recent technological advances in combining low intensity focused ultrasound with intravenous microbubbles to transiently increase blood-brain barrier permeability for improved brain delivery and target engagement of these large molecule anti-asyn biologics.
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spelling doaj.art-a3dc4d1b756f4e508aec3604a1ec394a2022-12-22T02:53:30ZengFrontiers Media S.A.Frontiers in Neurology1664-22952022-05-011310.3389/fneur.2022.852003852003Alpha-Synuclein Targeting Therapeutics for Parkinson's Disease and Related SynucleinopathiesSindhu Menon0Sabrina Armstrong1Amir Hamzeh2Naomi P. Visanji3Naomi P. Visanji4Naomi P. Visanji5Sergio Pablo Sardi6Anurag Tandon7Anurag Tandon8Tanz Centre for Research in Neurodegenerative Diseases, Toronto, ON, CanadaTanz Centre for Research in Neurodegenerative Diseases, Toronto, ON, CanadaTanz Centre for Research in Neurodegenerative Diseases, Toronto, ON, CanadaTanz Centre for Research in Neurodegenerative Diseases, Toronto, ON, CanadaDepartment of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, CanadaKrembil Research Institute, Toronto, ON, CanadaSanofi, Framingham, MA, United StatesTanz Centre for Research in Neurodegenerative Diseases, Toronto, ON, CanadaDepartment of Medicine, University of Toronto, Toronto, ON, Canadaα-Synuclein (asyn) is a key pathogenetic factor in a group of neurodegenerative diseases generically known as synucleinopathies, including Parkinson's disease (PD), dementia with Lewy bodies (DLB) and multiple system atrophy (MSA). Although the initial triggers of pathology and progression are unclear, multiple lines of evidence support therapeutic targeting of asyn in order to limit its prion-like misfolding. Here, we review recent pre-clinical and clinical work that offers promising treatment strategies to sequester, degrade, or silence asyn expression as a means to reduce the levels of seed or substrate. These diverse approaches include removal of aggregated asyn with passive or active immunization or by expression of vectorized antibodies, modulating kinetics of misfolding with small molecule anti-aggregants, lowering asyn gene expression by antisense oligonucleotides or inhibitory RNA, and pharmacological activation of asyn degradation pathways. We also discuss recent technological advances in combining low intensity focused ultrasound with intravenous microbubbles to transiently increase blood-brain barrier permeability for improved brain delivery and target engagement of these large molecule anti-asyn biologics.https://www.frontiersin.org/articles/10.3389/fneur.2022.852003/fullParkinson's diseasepriongene therapyanti-aggregationbrain delivery of drugsimmunization
spellingShingle Sindhu Menon
Sabrina Armstrong
Amir Hamzeh
Naomi P. Visanji
Naomi P. Visanji
Naomi P. Visanji
Sergio Pablo Sardi
Anurag Tandon
Anurag Tandon
Alpha-Synuclein Targeting Therapeutics for Parkinson's Disease and Related Synucleinopathies
Frontiers in Neurology
Parkinson's disease
prion
gene therapy
anti-aggregation
brain delivery of drugs
immunization
title Alpha-Synuclein Targeting Therapeutics for Parkinson's Disease and Related Synucleinopathies
title_full Alpha-Synuclein Targeting Therapeutics for Parkinson's Disease and Related Synucleinopathies
title_fullStr Alpha-Synuclein Targeting Therapeutics for Parkinson's Disease and Related Synucleinopathies
title_full_unstemmed Alpha-Synuclein Targeting Therapeutics for Parkinson's Disease and Related Synucleinopathies
title_short Alpha-Synuclein Targeting Therapeutics for Parkinson's Disease and Related Synucleinopathies
title_sort alpha synuclein targeting therapeutics for parkinson s disease and related synucleinopathies
topic Parkinson's disease
prion
gene therapy
anti-aggregation
brain delivery of drugs
immunization
url https://www.frontiersin.org/articles/10.3389/fneur.2022.852003/full
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