Proteasome inhibitors induce apoptosis by superoxide anion generation via NADPH oxidase 5 in human neuroblastoma SH-SY5Y cells DOI Creative Commons

Akiko Yamamuro-Tanabe,

Yu Oshima,

Takumi Iyama

et al.

Journal of Pharmacological Sciences, Journal Year: 2024, Volume and Issue: 155(2), P. 52 - 62

Published: March 27, 2024

The ubiquitin-proteasome system (UPS) is a major proteolytic that plays an important role in the regulation of various cell processes, such as cycle, stress response, and transcriptional regulation, especially neurons, dysfunction UPS considered to be cause neuronal death neurodegenerative diseases. However, mechanism caused by has not yet been fully elucidated. In this study, we investigated induced proteasome inhibitors using human neuroblastoma SH-SY5Y cells. Z-Leu-D-Leu-Leu-al (MG132), inhibitor, apoptosis cells concentration- time-dependent manner. Antioxidants N-acetylcysteine EUK-8 attenuated MG132-induced apoptosis. Apocynin diphenyleneiodonium, NADPH oxidase (NOX), enzyme produces superoxide anions, also It was found MG132 treatment increased expression NOX5, NOX family member, siRNA-mediated silencing NOX5 BAPTA-AM, which inhibits chelating calcium, suppressed production reactive oxygen species These results suggest induces through anion NOX5.

Language: Английский

Exercise suppresses neuroinflammation for alleviating Alzheimer’s disease DOI Creative Commons
Minghui Wang, Hu Zhang, Jiling Liang

et al.

Journal of Neuroinflammation, Journal Year: 2023, Volume and Issue: 20(1)

Published: March 19, 2023

Abstract Alzheimer’s disease (AD) is a chronic neurodegenerative disease, with the characteristics of neurofibrillary tangle (NFT) and senile plaque (SP) formation. Although great progresses have been made in clinical trials based on relevant hypotheses, these studies are also accompanied by emergence toxic side effects, it an urgent task to explore underlying mechanisms for benefits prevent treat AD. Herein, animal experiments few trials, neuroinflammation AD characterized long-term activation pro-inflammatory microglia NOD-, LRR- pyrin domain-containing protein 3 (NLRP3) inflammasomes. Damaged signals from periphery within brain continuously activate microglia, thus resulting constant source inflammatory responses. The response exacerbates endoplasmic reticulum oxidative stress which triggers microglia-dependent immune responses, ultimately leading occurrence deterioration In this review, we systematically summarized sorted out that exercise ameliorates directly indirectly regulating central nervous system promoting hippocampal neurogenesis provide new direction exploring activity

Language: Английский

Citations

85

TDP-43 forms amyloid filaments with a distinct fold in type A FTLD-TDP DOI Creative Commons
Diana Arseni, Renren Chen,

Alexey G. Murzin

et al.

Nature, Journal Year: 2023, Volume and Issue: 620(7975), P. 898 - 903

Published: Aug. 2, 2023

Abstract The abnormal assembly of TAR DNA-binding protein 43 (TDP-43) in neuronal and glial cells characterizes nearly all cases amyotrophic lateral sclerosis (ALS) around half frontotemporal lobar degeneration (FTLD) 1,2 . A causal role for TDP-43 neurodegeneration is evidenced by dominantly inherited missense mutations TARDBP , the gene encoding TDP-43, that promote give rise to ALS FTLD 3–7 At least four types (A–D) with pathology (FTLD-TDP) are defined distinct brain distributions assembled associated different clinical presentations dementia 8 We previously showed, using cryo-electron microscopy, assembles into amyloid filaments type B FTLD-TDP 9 However, structures without remained unknown. Here we report microscopy from brains three individuals most common FTLD-TDP, A. formed a new fold was same across individuals, indicating this may characterize FTLD-TDP. resembles chevron badge unlike double-spiral-shaped establishing filament folds neurodegenerative conditions. structures, combination mass spectrometry, led identification two post-translational modifications citrullination monomethylation R293, indicate they facilitate formation observed structural variation individual filaments. will guide mechanistic studies assembly, as well development diagnostic therapeutic compounds proteinopathies.

Language: Английский

Citations

73

A structural basis for prion strain diversity DOI Creative Commons
Szymon W. Manka,

Adam Wenborn,

Jemma Betts

et al.

Nature Chemical Biology, Journal Year: 2023, Volume and Issue: 19(5), P. 607 - 613

Published: Jan. 16, 2023

Abstract Recent cryogenic electron microscopy (cryo-EM) studies of infectious, ex vivo, prion fibrils from hamster 263K and mouse RML strains revealed a similar, parallel in-register intermolecular β-sheet (PIRIBS) amyloid architecture. Rungs the are composed individual protein (PrP) monomers that fold to create distinct N-terminal C-terminal lobes. However, disparity in hamster/mouse PrP sequence precludes understanding how divergent emerge an identical substrate. In this study, we determined near-atomic resolution cryo-EM structure vivo ME7 strain compared with fibril structure. This structural comparison two biologically mouse-adapted suggests defined folding subdomains rungs way which they interrelated, providing definition intra-species strain-specific conformations.

Language: Английский

Citations

57

Heteromeric amyloid filaments of ANXA11 and TDP-43 in FTLD-TDP Type C DOI Creative Commons
Diana Arseni, Takashi Nonaka, Max Jacobsen

et al.

Nature, Journal Year: 2024, Volume and Issue: 634(8034), P. 662 - 668

Published: Sept. 11, 2024

Language: Английский

Citations

27

Limbic-predominant age-related TDP43 encephalopathy (LATE) neuropathological change in neurodegenerative diseases DOI
Sukriti Nag, Julie A. Schneider

Nature Reviews Neurology, Journal Year: 2023, Volume and Issue: 19(9), P. 525 - 541

Published: Aug. 10, 2023

Language: Английский

Citations

26

The Misfolding Mystery: α-syn and the Pathogenesis of Parkinson's Disease DOI

Samir Negi,

Navneet Khurana,

Navneet Duggal

et al.

Neurochemistry International, Journal Year: 2024, Volume and Issue: 177, P. 105760 - 105760

Published: May 7, 2024

Language: Английский

Citations

17

Sodium Dodecyl Sulfate Analogs as a Potential Molecular Biology Reagent DOI Creative Commons
Tsutomu Arakawa, Takako Niikura,

Yoshiko Kita

et al.

Current Issues in Molecular Biology, Journal Year: 2024, Volume and Issue: 46(1), P. 621 - 633

Published: Jan. 9, 2024

In this study, we review the properties of three anionic detergents, sodium dodecyl sulfate (SDS), Sarkosyl, and lauroylglutamate (SLG), as they play a critical role in molecular biology research. SDS is widely used electrophoresis cell lysis for proteomics. Sarkosyl and, more frequently, are characterization neuropathological protein fibrils solubilization proteins. Many amyloid resistant to or different degrees thus, can be readily isolated from detergent-sensitive SLG milder than above two detergents has been refolding proteins inclusion bodies. Here, show that both have refolding, effects on native structure weaker SLG, dissociates We propose may effective functional proteomics due no binding

Language: Английский

Citations

11

Nature's toolbox against tau aggregation: An updated review of current research DOI
Sumaiya Khan, Md. Imtaiyaz Hassan, Mohammad Shahid

et al.

Ageing Research Reviews, Journal Year: 2023, Volume and Issue: 87, P. 101924 - 101924

Published: March 31, 2023

Language: Английский

Citations

23

α-Synuclein Conformational Strains as Drivers of Phenotypic Heterogeneity in Neurodegenerative Diseases DOI Open Access
Raphaella W. L. So, Joel C. Watts

Journal of Molecular Biology, Journal Year: 2023, Volume and Issue: 435(12), P. 168011 - 168011

Published: Feb. 14, 2023

Language: Английский

Citations

19

The Role of the Glymphatic Clearance System in the Mechanisms of the Interactions of the Sleep–Waking Cycle and the Development of Neurodegenerative Processes DOI
Igor Shirolapov, Alexander Zakharov, Daria Smirnova

et al.

Neuroscience and Behavioral Physiology, Journal Year: 2024, Volume and Issue: 54(2), P. 199 - 204

Published: Feb. 1, 2024

Language: Английский

Citations

8