Amyotrophic Lateral Sclerosis, a Multisystem Pathology: Insights into the Role of TNFα

Amyotrophic lateral sclerosis (ALS) is considered a multifactorial, multisystem disease in which inflammation and the immune system play important roles in development and progression. The pleiotropic cytokine TNFα is one of the major players governing the inflammation in the central nervous system...

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Main Authors: Massimo Tortarolo, Daniele Lo Coco, Pietro Veglianese, Antonio Vallarola, Maria Teresa Giordana, Gabriella Marcon, Ettore Beghi, Marco Poloni, Michael J. Strong, Anand M. Iyer, Eleonora Aronica, Caterina Bendotti
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/2017/2985051
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author Massimo Tortarolo
Daniele Lo Coco
Pietro Veglianese
Antonio Vallarola
Maria Teresa Giordana
Gabriella Marcon
Ettore Beghi
Marco Poloni
Michael J. Strong
Anand M. Iyer
Eleonora Aronica
Caterina Bendotti
author_facet Massimo Tortarolo
Daniele Lo Coco
Pietro Veglianese
Antonio Vallarola
Maria Teresa Giordana
Gabriella Marcon
Ettore Beghi
Marco Poloni
Michael J. Strong
Anand M. Iyer
Eleonora Aronica
Caterina Bendotti
author_sort Massimo Tortarolo
collection DOAJ
description Amyotrophic lateral sclerosis (ALS) is considered a multifactorial, multisystem disease in which inflammation and the immune system play important roles in development and progression. The pleiotropic cytokine TNFα is one of the major players governing the inflammation in the central nervous system and peripheral districts such as the neuromuscular and immune system. Changes in TNFα levels are reported in blood, cerebrospinal fluid, and nerve tissues of ALS patients and animal models. However, whether they play a detrimental or protective role on the disease progression is still not clear. Our group and others have recently reported opposite involvements of TNFR1 and TNFR2 in motor neuron death. TNFR2 mediates TNFα toxic effects on these neurons presumably through the activation of MAP kinase-related pathways. On the other hand, TNFR2 regulates the function and proliferation of regulatory T cells (Treg) whose expression is inversely correlated with the disease progression rate in ALS patients. In addition, TNFα is considered a procachectic factor with a direct catabolic effect on skeletal muscles, causing wasting. We review and discuss the role of TNFα in ALS in the light of its multisystem nature.
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institution Kabale University
issn 0962-9351
1466-1861
language English
publishDate 2017-01-01
publisher Wiley
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series Mediators of Inflammation
spelling doaj-art-02998644cfd14feb93b5f290e11841222025-02-03T01:27:13ZengWileyMediators of Inflammation0962-93511466-18612017-01-01201710.1155/2017/29850512985051Amyotrophic Lateral Sclerosis, a Multisystem Pathology: Insights into the Role of TNFαMassimo Tortarolo0Daniele Lo Coco1Pietro Veglianese2Antonio Vallarola3Maria Teresa Giordana4Gabriella Marcon5Ettore Beghi6Marco Poloni7Michael J. Strong8Anand M. Iyer9Eleonora Aronica10Caterina Bendotti11Department of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, ItalyDepartment of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, ItalyDepartment of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, ItalyDepartment of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, ItalyDepartment of Neuroscience, University of Turin, Turin, ItalyDepartment of Medical, Surgical and Health Sciences, University of Trieste, Trieste, ItalyDepartment of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, ItalyDepartment of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, ItalyCell Biology Research Group, Robarts Research Institute, London, ON, CanadaDepartment of Neuropathology, Academisch Medisch Centrum, Amsterdam, NetherlandsDepartment of Neuropathology, Academisch Medisch Centrum, Amsterdam, NetherlandsDepartment of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche Mario Negri, Milan, ItalyAmyotrophic lateral sclerosis (ALS) is considered a multifactorial, multisystem disease in which inflammation and the immune system play important roles in development and progression. The pleiotropic cytokine TNFα is one of the major players governing the inflammation in the central nervous system and peripheral districts such as the neuromuscular and immune system. Changes in TNFα levels are reported in blood, cerebrospinal fluid, and nerve tissues of ALS patients and animal models. However, whether they play a detrimental or protective role on the disease progression is still not clear. Our group and others have recently reported opposite involvements of TNFR1 and TNFR2 in motor neuron death. TNFR2 mediates TNFα toxic effects on these neurons presumably through the activation of MAP kinase-related pathways. On the other hand, TNFR2 regulates the function and proliferation of regulatory T cells (Treg) whose expression is inversely correlated with the disease progression rate in ALS patients. In addition, TNFα is considered a procachectic factor with a direct catabolic effect on skeletal muscles, causing wasting. We review and discuss the role of TNFα in ALS in the light of its multisystem nature.http://dx.doi.org/10.1155/2017/2985051
spellingShingle Massimo Tortarolo
Daniele Lo Coco
Pietro Veglianese
Antonio Vallarola
Maria Teresa Giordana
Gabriella Marcon
Ettore Beghi
Marco Poloni
Michael J. Strong
Anand M. Iyer
Eleonora Aronica
Caterina Bendotti
Amyotrophic Lateral Sclerosis, a Multisystem Pathology: Insights into the Role of TNFα
Mediators of Inflammation
title Amyotrophic Lateral Sclerosis, a Multisystem Pathology: Insights into the Role of TNFα
title_full Amyotrophic Lateral Sclerosis, a Multisystem Pathology: Insights into the Role of TNFα
title_fullStr Amyotrophic Lateral Sclerosis, a Multisystem Pathology: Insights into the Role of TNFα
title_full_unstemmed Amyotrophic Lateral Sclerosis, a Multisystem Pathology: Insights into the Role of TNFα
title_short Amyotrophic Lateral Sclerosis, a Multisystem Pathology: Insights into the Role of TNFα
title_sort amyotrophic lateral sclerosis a multisystem pathology insights into the role of tnfα
url http://dx.doi.org/10.1155/2017/2985051
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