Elevated 4R tau contributes to endolysosomal dysfunction and neurodegeneration in VCP-related frontotemporal dementia DOI Creative Commons
Christy Hung, Rickie Patani

Brain, Journal Year: 2023, Volume and Issue: 147(3), P. 970 - 979

Published: Oct. 26, 2023

Abstract Frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) are two incurable neurodegenerative diseases that exist on a clinical, genetic pathological spectrum. The VCP gene is highly relevant, being directly implicated in both FTD ALS. Here, we investigate the effects of mutations cellular homoeostasis human induced pluripotent stem cell-derived cortical neurons, focusing endolysosomal biology tau pathology. We found cause abnormal accumulation enlarged endolysosomes accompanied by impaired interaction between nuclear RNA binding proteins: fused sarcoma (FUS) splicing factor, proline- glutamine-rich (SFPQ) neurons. spatial dissociation intranuclear FUS SFPQ correlates with alternative MAPT pre-mRNA increased phosphorylation. Importantly, show inducing 4R expression using antisense oligonucleotide technology sufficient to drive neurodegeneration control which phenocopies VCP-mutant In summary, our findings demonstrate hyperphosphorylation, dysfunction, lysosomal membrane rupture, endoplasmic reticulum stress apoptosis driven pathogenic increase tau.

Language: Английский

Gene therapy breakthroughs in ALS: a beacon of hope for 20% of ALS patients DOI Creative Commons
Qing Xie, Kezheng Li, Yinuo Chen

et al.

Translational Neurodegeneration, Journal Year: 2025, Volume and Issue: 14(1)

Published: April 16, 2025

Abstract Amyotrophic lateral sclerosis (ALS) is a fatal motor neuron disease that remains incurable. Although the etiologies of ALS are diverse and precise pathogenic mechanisms not fully understood, approximately 20% cases caused by genetic factors. Therefore, advancing targeted gene therapies holds significant promise, at least for patients with etiologies. In this review, we summarize main strategies techniques current based on risk genes, review recent findings from animal studies clinical trials. Additionally, highlight ALS-related genes well-understood potential numerous emerging gene-targeted therapeutic approaches ALS.

Language: Английский

Citations

0

Inborn errors of canonical autophagy in neurodegenerative diseases DOI Creative Commons
Dennis Freisem, Helene Hoenigsperger, Alberto Catanese

et al.

Human Molecular Genetics, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Abstract Neurodegenerative disorders (NDDs), characterized by a progressive loss of neurons and cognitive function, are severe burden to human health mental fitness worldwide. A hallmark NDDs such as Alzheimer’s disease, Huntington’s Parkinson’s disease (PD), amyotrophic lateral sclerosis (ALS) prion diseases is disturbed cellular proteostasis, resulting in pathogenic deposition aggregated protein species. Autophagy major process maintaining proteostasis integral innate immune defenses that mediates lysosomal turnover. Defects autophagy thus frequently associated with NDDs. In this review, we discuss the interplay between proteins provide an overview over recent discoveries inborn errors canonical While mutations receptors seems be mainly development ALS, mitophagy found promote PD. Finally, argue whether may impact progress onset well potential targeting therapeutic approach. Concludingly, understanding due autophagy—“autophagopathies”—will help unravel underlying NDD pathomechanisms unique insights into neuroprotective role autophagy, potentially paving way for novel interventions.

Language: Английский

Citations

0

The cerebellum in frontotemporal dementia: from neglected bystander to potential neuromodulatory target. A narrative review DOI Creative Commons
Annibale Antonioni,

Emanuela Maria Raho,

Danny Spampinato

et al.

Neuroscience & Biobehavioral Reviews, Journal Year: 2025, Volume and Issue: unknown, P. 106194 - 106194

Published: May 1, 2025

Language: Английский

Citations

0

p62 bodies: cytosolic zoning by phase separation DOI Open Access
Reo Kurusu, Hideaki Morishita, Masaaki Komatsu

et al.

The Journal of Biochemistry, Journal Year: 2023, Volume and Issue: 175(2), P. 141 - 146

Published: Nov. 8, 2023

Abstract Cellular zoning or partitioning is critical in preventing macromolecules from random diffusion and orchestrating the spatiotemporal dynamics of biochemical reactions. Along with membranous organelles, membraneless organelles contribute to precise regulation reactions inside cells. In response environmental cues, rapidly form through liquid–liquid phase separation, sequester certain proteins RNAs, mediate specific dissociate. Among ubiquitin-positive condensates, namely, p62 bodies, maintain cellular homeostasis selective autophagy themselves intracellular quality control. bodies also activate anti-oxidative stress regulated by KEAP1-NRF2 system. this review, we present an overview recent advancements molecular biology related highlighting their dynamic nature functions.

Language: Английский

Citations

10

Elevated 4R tau contributes to endolysosomal dysfunction and neurodegeneration in VCP-related frontotemporal dementia DOI Creative Commons
Christy Hung, Rickie Patani

Brain, Journal Year: 2023, Volume and Issue: 147(3), P. 970 - 979

Published: Oct. 26, 2023

Abstract Frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) are two incurable neurodegenerative diseases that exist on a clinical, genetic pathological spectrum. The VCP gene is highly relevant, being directly implicated in both FTD ALS. Here, we investigate the effects of mutations cellular homoeostasis human induced pluripotent stem cell-derived cortical neurons, focusing endolysosomal biology tau pathology. We found cause abnormal accumulation enlarged endolysosomes accompanied by impaired interaction between nuclear RNA binding proteins: fused sarcoma (FUS) splicing factor, proline- glutamine-rich (SFPQ) neurons. spatial dissociation intranuclear FUS SFPQ correlates with alternative MAPT pre-mRNA increased phosphorylation. Importantly, show inducing 4R expression using antisense oligonucleotide technology sufficient to drive neurodegeneration control which phenocopies VCP-mutant In summary, our findings demonstrate hyperphosphorylation, dysfunction, lysosomal membrane rupture, endoplasmic reticulum stress apoptosis driven pathogenic increase tau.

Language: Английский

Citations

9