Integrated analysis of transcriptomic and proteomic alterations in mouse models of ALS/FTD identify early metabolic adaptions with similarities to mitochondrial dysfunction disorders

Sporadic and familial amyotrophic lateral sclerosis (ALS) is a fatal progressive neurodegenerative disease that results in loss of motor neurons and, in some patients, associates with frontotemporal dementia (FTD). Apart from the accumulation of proteinaceous deposits, emerging literature indicates...

Full description

Saved in:
Bibliographic Details
Published inAmyotrophic lateral sclerosis and frontotemporal degeneration Vol. 25; no. 1-2; p. 135
Main Authors Matveeva, Anna, Watters, Orla, Rukhadze, Ani, Khemka, Niraj, Gentile, Debora, Perez, Ivan Fernandez, Llorente-Folch, Irene, Farrell, Cliona, Lo Cacciato, Elide, Jackson, Joshua, Piazzesi, Antonia, Wischhof, Lena, Woods, Ina, Halang, Luise, Hogg, Marion, Muñoz, Amaya Garcia, Dillon, Eugène T, Matallanas, David, Arijs, Ingrid, Lambrechts, Diether, Bano, Daniele, Connolly, Niamh M C, Prehn, Jochen H M
Format Journal Article
LanguageEnglish
Published England 01.02.2024
Subjects
Online AccessGet more information

Cover

Loading…
More Information
Summary:Sporadic and familial amyotrophic lateral sclerosis (ALS) is a fatal progressive neurodegenerative disease that results in loss of motor neurons and, in some patients, associates with frontotemporal dementia (FTD). Apart from the accumulation of proteinaceous deposits, emerging literature indicates that aberrant mitochondrial bioenergetics may contribute to the onset and progression of ALS/FTD. Here we sought to investigate the pathophysiological signatures of mitochondrial dysfunction associated with ALS/FTD. By means of label-free mass spectrometry (MS) and mRNA sequencing (mRNA-seq), we report pre-symptomatic changes in the cortices of TDP-43 and FUS mutant mouse models. Using tissues from transgenic mouse models of mitochondrial diseases as a reference, we performed comparative analyses and extracted unique and common mitochondrial signatures that revealed neuroprotective compensatory mechanisms in response to early damage. In this regard, upregulation of both Acyl-CoA Synthetase Long-Chain Family Member 3 (ACSL3) and mitochondrial tyrosyl-tRNA synthetase 2 (YARS2) were the most representative change in pre-symptomatic ALS/FTD tissues, suggesting that fatty acid beta-oxidation and mitochondrial protein translation are mechanisms of adaptation in response to ALS/FTD pathology. Together, our unbiased integrative analyses unveil novel molecular components that may influence mitochondrial homeostasis in the earliest phase of ALS.
ISSN:2167-9223
DOI:10.1080/21678421.2023.2261979