Secondary Protein Aggregates in Neurodegenerative Diseases: Almost the Rule Rather than the Exception

The presence of protein aggregates is a hallmark of many neurodegenerative diseases, including Parkinson’s disease (PD), Alzheimer’s disease (AD), and frontotemporal lobar degeneration (FTLD). Traditionally, each disease has been associated with the aggregation of specific proteins, which serve as d...

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Main Authors: Fabio Moda, Arianna Ciullini, Ilaria Linda Dellarole, Annalisa Lombardo, Nicole Campanella, Giuseppe Bufano, Federico Angelo Cazzaniga, Giorgio Giaccone
Format: Article
Language:English
Published: IMR Press 2023-10-01
Series:Frontiers in Bioscience-Landmark
Subjects:
Online Access:https://www.imrpress.com/journal/FBL/28/10/10.31083/j.fbl2810255
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author Fabio Moda
Arianna Ciullini
Ilaria Linda Dellarole
Annalisa Lombardo
Nicole Campanella
Giuseppe Bufano
Federico Angelo Cazzaniga
Giorgio Giaccone
author_facet Fabio Moda
Arianna Ciullini
Ilaria Linda Dellarole
Annalisa Lombardo
Nicole Campanella
Giuseppe Bufano
Federico Angelo Cazzaniga
Giorgio Giaccone
author_sort Fabio Moda
collection DOAJ
description The presence of protein aggregates is a hallmark of many neurodegenerative diseases, including Parkinson’s disease (PD), Alzheimer’s disease (AD), and frontotemporal lobar degeneration (FTLD). Traditionally, each disease has been associated with the aggregation of specific proteins, which serve as disease-specific biomarkers. For example, aggregates of α-synuclein (α-syn) are found in α-synucleinopathies such as PD, dementia with Lewy bodies (DLB), and multiple system atrophy (MSA). Similarly, AD is characterized by aggregates of amyloid-beta (Aβ) and tau proteins. However, it has been observed that these protein aggregates can also occur in other neurodegenerative diseases, contributing to disease progression. For instance, α-syn aggregates have been detected in AD, Down syndrome, Huntington’s disease, prion diseases, and various forms of FTLD. Similarly, Aβ aggregates have been found in conditions like DLB and PD. Tau aggregates, in addition to being present in primary tauopathies, have been identified in prion diseases, α-synucleinopathies, and cognitively healthy aged subjects. Finally, aggregates of TDP-43, typically associated with FTLD and amyotrophic lateral sclerosis (ALS), have been observed in AD, progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), MSA, DLB, and other neurodegenerative diseases. These findings highlight the complexity of protein aggregation in neurodegeneration and suggest potential interactions and common mechanisms underlying different diseases. A deeper understating of this complex scenario may eventually lead to the identification of a better elucidation of the pathogenetic mechanisms of these devastating conditions and hopefully new therapeutic stragegies.
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spelling doaj.art-a54d15e088fd41188bd3d6a7d8642cfa2023-11-03T02:31:26ZengIMR PressFrontiers in Bioscience-Landmark2768-67012023-10-01281025510.31083/j.fbl2810255S2768-6701(23)01060-2Secondary Protein Aggregates in Neurodegenerative Diseases: Almost the Rule Rather than the ExceptionFabio Moda0Arianna Ciullini1Ilaria Linda Dellarole2Annalisa Lombardo3Nicole Campanella4Giuseppe Bufano5Federico Angelo Cazzaniga6Giorgio Giaccone7Department of Neurology 5 - Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, ItalyDepartment of Neurology 5 - Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, ItalyDepartment of Neurology 5 - Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, ItalyDepartment of Neurology 5 - Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, ItalyDepartment of Neurology 5 - Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, ItalyDepartment of Neurology 5 - Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, ItalyDepartment of Neurology 5 - Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, ItalyDepartment of Neurology 5 - Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, ItalyThe presence of protein aggregates is a hallmark of many neurodegenerative diseases, including Parkinson’s disease (PD), Alzheimer’s disease (AD), and frontotemporal lobar degeneration (FTLD). Traditionally, each disease has been associated with the aggregation of specific proteins, which serve as disease-specific biomarkers. For example, aggregates of α-synuclein (α-syn) are found in α-synucleinopathies such as PD, dementia with Lewy bodies (DLB), and multiple system atrophy (MSA). Similarly, AD is characterized by aggregates of amyloid-beta (Aβ) and tau proteins. However, it has been observed that these protein aggregates can also occur in other neurodegenerative diseases, contributing to disease progression. For instance, α-syn aggregates have been detected in AD, Down syndrome, Huntington’s disease, prion diseases, and various forms of FTLD. Similarly, Aβ aggregates have been found in conditions like DLB and PD. Tau aggregates, in addition to being present in primary tauopathies, have been identified in prion diseases, α-synucleinopathies, and cognitively healthy aged subjects. Finally, aggregates of TDP-43, typically associated with FTLD and amyotrophic lateral sclerosis (ALS), have been observed in AD, progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), MSA, DLB, and other neurodegenerative diseases. These findings highlight the complexity of protein aggregation in neurodegeneration and suggest potential interactions and common mechanisms underlying different diseases. A deeper understating of this complex scenario may eventually lead to the identification of a better elucidation of the pathogenetic mechanisms of these devastating conditions and hopefully new therapeutic stragegies.https://www.imrpress.com/journal/FBL/28/10/10.31083/j.fbl2810255neurodegenerationprotein aggregationbiomarkerneuropathologytautopathiesalpha-synucleinopathiestdp-43 proteinopathies
spellingShingle Fabio Moda
Arianna Ciullini
Ilaria Linda Dellarole
Annalisa Lombardo
Nicole Campanella
Giuseppe Bufano
Federico Angelo Cazzaniga
Giorgio Giaccone
Secondary Protein Aggregates in Neurodegenerative Diseases: Almost the Rule Rather than the Exception
Frontiers in Bioscience-Landmark
neurodegeneration
protein aggregation
biomarker
neuropathology
tautopathies
alpha-synucleinopathies
tdp-43 proteinopathies
title Secondary Protein Aggregates in Neurodegenerative Diseases: Almost the Rule Rather than the Exception
title_full Secondary Protein Aggregates in Neurodegenerative Diseases: Almost the Rule Rather than the Exception
title_fullStr Secondary Protein Aggregates in Neurodegenerative Diseases: Almost the Rule Rather than the Exception
title_full_unstemmed Secondary Protein Aggregates in Neurodegenerative Diseases: Almost the Rule Rather than the Exception
title_short Secondary Protein Aggregates in Neurodegenerative Diseases: Almost the Rule Rather than the Exception
title_sort secondary protein aggregates in neurodegenerative diseases almost the rule rather than the exception
topic neurodegeneration
protein aggregation
biomarker
neuropathology
tautopathies
alpha-synucleinopathies
tdp-43 proteinopathies
url https://www.imrpress.com/journal/FBL/28/10/10.31083/j.fbl2810255
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