A Nitroalkene Benzoic Acid Derivative Targets Reactive Microglia and Prolongs Survival in an Inherited Model of ALS via NF-κB Inhibition

Dublin Core

Title

A Nitroalkene Benzoic Acid Derivative Targets Reactive Microglia and Prolongs Survival in an Inherited Model of ALS via NF-κB Inhibition

Subject

ESCLEROSIS LATERAL AMIOTROFICA
ACIDO NITROALQUENO BENZOICO
BIBLIOGRAFIA NACIONAL QUIMICA
2020

Abstract

Motor neuron degeneration and neuroinflammation are the most striking pathological features of amyotrophic lateral sclerosis (ALS). ALS currently has no cure and approved drugs have only amodest clinically therapeutic effect in patients. Drugs targeting different deleterious inflammatory pathways in ALS appear as promising therapeutic alternatives. Here, we have assessed the potential therapeutic effect of an electrophilic nitroalkene benzoic acid derivative, (E)-4-(2-nitrovinyl) benzoic acid (BANA), to slow down paralysis progression when administered after overt disease onset in SOD1G93A rats. BANA exerted a significant inhibition of NF-κB activation in NF-κB reporter transgenicmice and microglial cell cultures. Systemic daily oral administration of BANA to SOD1G93A rats after paralysis onset significantly decreased microgliosis and astrocytosis, and significantly reduced the number of NF-κB-p65-positive microglial nuclei surrounding spinal motor neurons. Numerous microglia bearing nuclear NF-κB-p65 were observed in the surrounding of motor neurons in autopsy spinal cords from ALS patients but not in controls, suggesting ALS-associated microglia could be targeted by BANA. In addition, BANA-treated SOD1G93A rats after paralysis onset showed significantly ameliorated spinal motor neuron pathology as well as conserved neuromuscular junction innervation in the skeletal muscle, as compared to controls. Notably, BANA prolonged post-paralysis survival by ~30%, compared to vehicle-treated littermates. These data provide a rationale to therapeutically slow paralysis progression in ALS using small electrophilic compounds such as BANA, through a mechanism involving microglial NF-κB inhibition.

Creator

Ibarburu, Sofia
Kovacs, Mariángeles
Varela, Valentina
Rodríguez Duarte, Jorge
Ingold, Mariana
Invernizzi, Paulina
Porcal, Williams
Arévalo, Ana Paula
Perelmulter, Karen
Bollati-Fogolín, Mariela
Escande, Carlos
López, Gloria V.
King, Peter
Si, Ying
Kwon, Yuri
Batthyány, Carlos
Barbeito, Luis
Trias, Emiliano

Source

Neurotherapeutics 2020.-- p. 1-17. https://doi.org/10.1007/s13311-020-00953-z

Publisher

Springer

Date

2020

Rights

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Format

Pdf

Language

Inglés

Type

Artículo

Identifier

https://doi.org/10.1007/s13311-020-00953-z

Document Item Type Metadata

Original Format

Pdf
Date Added
April 7, 2021
Collection
Bibliografía Nacional Química
Item Type
Document
Tags
,
Citation
Ibarburu, Sofia et al., “A Nitroalkene Benzoic Acid Derivative Targets Reactive Microglia and Prolongs Survival in an Inherited Model of ALS via NF-κB Inhibition,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed November 17, 2025, https://riquim.fq.edu.uy/items/show/6222.