ArticleCellular and molecular life sciences : CMLS2022
A53T mutant α-synuclein fibrils formed in macrophage are spread to neurons.
Article in Cellular and molecular life sciences : CMLS, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 2 citations in OpenAlex.
- Zebrafish Models of Parkinson's Disease: From Pathogenesis to Drug Discovery.International journal of molecular sciences · 2026Review
- Alpha-synuclein shapes monocyte and macrophage cell biology and functions by bridging alterations of autophagy and inflammatory pathways.Frontiers in cell and developmental biology · 2024Article
- Identification of key genes and signaling pathways associated with dementia with Lewy bodies and Parkinson's disease dementia using bioinformatics.Frontiers in neurology · 2023Article
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Authors and funding
6 authors at 2 institutions in 1 country.
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Abstract
Lewy body (LB), which mainly consists of abnormal α-synuclein (αS) aggregates, is a histological hallmark of Parkinson's disease (PD). αS aggregation and LB inclusions are induced by spreading αS fibrils to neurons; therefore, the formation and transmission of αS fibrils to neurons may play an essential role in initiating LB formation in neurons. αS expressed in neurons is released into the extracellular space and taken up by macrophages and microglia; therefore, we hypothesized that macrophages/microglia play a role in the formation and spread of αS fibrils. In this study, we aimed to investigate the involvement of macrophages/microglia in the formation and spread of αS fibrils using transgenic animals that express human αS in macrophages/microglia. Transgenic zebrafish expressing A53T mutated αS (αS_A53T) in macrophages/microglia revealed αS accumulation in neurons. Transcriptome analysis by RNA-seq of human αS and αS_A53T expressing zebrafish revealed that kinase genes and E3 ubiquitin protein ligase genes were significantly high, and neuronal activity and transport-related Gene Ontology terms were also isolated. Meanwhile, αS_A53T monomers were taken up by A-THP-1 cells; processed to larger molecules, which could be αS fibrils; and released from macrophage cells. Furthermore, the ubiquitin-proteasome system modulated αS fibrils in A-THP-1 cells. αS fibrils suggest being formed from monomers in macrophages and spread to neurons to induce αS aggregates. Therefore, macrophages may play an essential role in the formation of αS aggregates and the pathogenesis of PD.
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