Cited by 244Parkinson's Disease Mechanisms and TreatmentsNeuroinflammation and Neurodegeneration MechanismsNuclear Receptors and Signaling

Role of α-Synuclein in Inducing Innate and Adaptive Immunity in Parkinson Disease

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Allen Reish, Heather E., Standaert, David G.·2015·Journal of Parkinson’s Disease

Abstract

Alpha-synuclein (α-syn) is central to the pathogenesis of Parkinson disease (PD). Gene duplications, triplications and point mutations in SNCA1, the gene encoding α-syn, cause autosomal dominant forms of PD. Aggregated and post-translationally modified forms of α-syn are present in Lewy bodies and Lewy neurites in both sporadic and familial PD, and recent work has emphasized the prion-like ability of aggregated α-syn to produce spreading pathology. Accumulation of abnormal forms of α-syn is a trigger for PD, but recent evidence suggests that much of the downstream neurodegeneration may result from inflammatory responses. Components of both the innate and adaptive immune systems are activated in PD, and influencing interactions between innate and adaptive immune components has been shown to modify the pathological process in animal models of PD. Understanding the relationship between α-syn and subsequent inflammation may reveal novel targets for neuroprotective interventions. In this review, we examine the role of α-syn and modified forms of this protein in the initiation of innate and adaptive immune responses.

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  • There is evidence for α-synuclein misfolding and aggregation being promoted by an inflammatory microenvironment that subsequently induces an immune response and further inflammation to create a vicious and disease-promoting positive feedback loop.

    “There is evidence for α-synuclein misfolding and aggregation being promoted by an inflammatory microenvironment that subsequently induces an immune response and further inflammation to create a vicious and disease-promoting positive feedback loop [118–120].”

    From The gut–brain axis in early Parkinson’s disease: from prodrome to prevention (2025) · cites this paper as [118]

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  • Production of neuroinflammation may trigger α-syn oligomerization, leading to a harmful cycle of microglial activation.

    “Production of neuroinflammation may trigger α-syn oligomerization, leading to a harmful cycle of microglial activation.”
  • Neuroinflammation induced by α-syn may occur even before the loss of dopaminergic neurons in PD.

    “Remarkably, neuroinflammation induced by α-syn may occur even before the loss of dopaminergic neurons in PD.”

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Authors
Allen Reish, H. E., & Standaert, D. G.
Affiliations
  • Center for Neurodegeneration and Experimental Therapeutics, Department of Neurology, University of Alabama at Birmingham, Alabama, USA
  • University of Alabama at Birmingham (US)
Venue
Journal of Parkinson’s Disease
Published
2015-01-01
Volume
5
Issue
1
Pages
1-19
ISSN
  • 1877-7171 (ISSN-L)
  • 1877-718X
OpenAlex
W1480927111
Cited by
244
References
233
Citations by year
2026: 11 · 2025: 20 · 2024: 30 · 2023: 20 · 2022: 26 · 2021: 39 · 2020: 20 · 2019: 19 · 2018: 18 · 2017: 18 · 2016: 16 · 2015: 7
FWCI
13.71
Type
journal article
Language
en
Open access
Locations
  • Journal of Parkinson s Disease (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Institute of Neurological Disorders and Stroke (F31NS076017)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
alpha-synuclein, Parkinson's disease, innate immunity, adaptive immunity, neuroinflammation, Lewy bodies, Lewy neurites, prion-like spreading, post-translational modification, neurodegeneration, neuroprotection
MeSH terms
Humans, Immunity, Innate, Parkinson Disease, alpha-Synuclein, Adaptive Immunity

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