Melatonin regulation of phase separation in Neuro-PASC: out-maneuvering Janus-faced amyloids DOI Creative Commons
Doris Loh, Russel J. Reıter

Exploration of neuroscience, Journal Year: 2025, Volume and Issue: 4

Published: March 24, 2025

The SAR-CoV-2 virus has evolved to co-exist with human hosts, albeit at a substantial energetic cost resulting in post-infection neurological manifestations [Neuro-post-acute sequelae of SARS-CoV-2 infection (PASC)] that significantly impact public health and economic productivity on global scale. One the main molecular mechanisms responsible for development Neuro-PASC, individuals all ages, is formation inadequate proteolysis/clearance phase-separated amyloid crystalline aggregates—a hallmark feature aging-related neurodegenerative disorders. Amyloidogenesis during viral persistence natural, inevitable, protective defense response exacerbated by SARS-CoV-2. Acting as chemical catalyst, accelerates hydrophobic collapse heterogeneous nucleation amorphous amyloids into stable β-sheet aggregates. clearance aggregates most effective slow wave sleep, when high levels adenosine triphosphate (ATP)—a biphasic modulator biomolecular condensates—and melatonin are available solubilize removal. dysregulation mitochondrial dynamics SARS-CoV-2, particular fusion fission homeostasis, impairs proper distinct subpopulations can remedy challenges created diversion substrates away from oxidative phosphorylation towards glycolysis support replication maintenance. subsequent reduction ATP inhibition synthesis sleep results incomplete brain aggregates, leading commonly associated age-related Exogenous not only prevents dysfunction but also elevates production, effectively augmenting solubilizing effect moiety ensure timely, optimal disaggregation pathogenic prevention attenuation Neuro-PASC.

Language: Английский

Insights Into Phylogeny, Diversity and Functional Potential of Poseidoniales Viruses DOI Creative Commons
Apoorva Prabhu, Julian Zaugg, Cheong Xin Chan

et al.

Environmental Microbiology, Journal Year: 2025, Volume and Issue: 27(1)

Published: Jan. 1, 2025

ABSTRACT Viruses infecting archaea play significant ecological roles in marine ecosystems through host infection and lysis, yet they have remained an underexplored component of the virosphere. In this study, we recovered 451 archaeal viruses from a subtropical estuary, identifying 63 that are associated with dominant order Poseidoniales (Marine Group II Archaea). Phylogenetic analyses subset complete nearly‐complete viral genomes assigned these to Magrovirales , lineage viruses, identified novel group distinct . Utilising demarcation criteria established for classification tailed propose two families within Magrovirales: Apasviridae (magrovirus A), comprising genera Agnivirus Savitrvirus, Krittikaviridae E) encompassing genus Velanvirus. Additionally, new order, named Adrikavirales, which includes Vyasavirus. Our detailed genomic characterisation lineages revealed genes involved assembly egress, such as those responsible creating holin rafts lyse cell membranes, feature predominantly known bacteriophages. Furthermore, broad spectrum auxiliary metabolic genes, suggesting can modulate metabolism. Collectively, our findings substantially enhance current understanding diversity functional potential viruses.

Language: Английский

Citations

0
Melatonin regulation of phase separation in Neuro-PASC: out-maneuvering Janus-faced amyloids DOI Creative Commons
Doris Loh, Russel J. Reıter

Exploration of neuroscience, Journal Year: 2025, Volume and Issue: 4

Published: March 24, 2025

The SAR-CoV-2 virus has evolved to co-exist with human hosts, albeit at a substantial energetic cost resulting in post-infection neurological manifestations [Neuro-post-acute sequelae of SARS-CoV-2 infection (PASC)] that significantly impact public health and economic productivity on global scale. One the main molecular mechanisms responsible for development Neuro-PASC, individuals all ages, is formation inadequate proteolysis/clearance phase-separated amyloid crystalline aggregates—a hallmark feature aging-related neurodegenerative disorders. Amyloidogenesis during viral persistence natural, inevitable, protective defense response exacerbated by SARS-CoV-2. Acting as chemical catalyst, accelerates hydrophobic collapse heterogeneous nucleation amorphous amyloids into stable β-sheet aggregates. clearance aggregates most effective slow wave sleep, when high levels adenosine triphosphate (ATP)—a biphasic modulator biomolecular condensates—and melatonin are available solubilize removal. dysregulation mitochondrial dynamics SARS-CoV-2, particular fusion fission homeostasis, impairs proper distinct subpopulations can remedy challenges created diversion substrates away from oxidative phosphorylation towards glycolysis support replication maintenance. subsequent reduction ATP inhibition synthesis sleep results incomplete brain aggregates, leading commonly associated age-related Exogenous not only prevents dysfunction but also elevates production, effectively augmenting solubilizing effect moiety ensure timely, optimal disaggregation pathogenic prevention attenuation Neuro-PASC.

Language: Английский

Citations

0