Alpha Synuclein Toxicity and Non-motor Parkinson’s DOI Open Access
G. Mazzotta, Carmela Conte

Published: June 18, 2024

Parkinson’s disease (PD) is a common multisystem neurodegenerative disorder affecting 1% of the population above 60 years. The main neuropathological features PD are loss dopaminergic neurons in substantia nigra pars compacta (SNpc) and presence alpha synuclein (Syn)-rich Lewy bodies both manifesting with classical motor signs. Syn has emerged as key protein pathology it can spread through synaptic networks to reach several anatomical regions body contributing appearance non-motor symptoms (NMS) considerate prevalent among individuals before diagnosis persisting throughout patient’s life. NMS mainly include taste smell, constipation, psychiatric disorders, dementia, rapid eye movement (REM) sleep behavior impairment, urogenital dysfunction, cardiovascular impairment. This review summarizes more recent findings showing impact deposits on prodromal emphasizes importance early detection toxic species biofluids peripheral biopsies prospective biomarkers PD.

Language: Английский

The role of neuroinflammation in neurodegenerative diseases: current understanding and future therapeutic targets DOI Creative Commons

Alhamdu Adamu,

Shuo Li,

Fankai Gao

et al.

Frontiers in Aging Neuroscience, Journal Year: 2024, Volume and Issue: 16

Published: April 12, 2024

Neuroinflammation refers to a highly complicated reaction of the central nervous system (CNS) certain stimuli such as trauma, infection, and neurodegenerative diseases. This is cellular immune response whereby glial cells are activated, inflammatory mediators liberated reactive oxygen nitrogen species synthesized. key process that helps protect brain from pathogens, but inappropriate, or protracted inflammation yields pathological states Parkinson’s disease, Alzheimer’s, Multiple Sclerosis, other disorders showcase various pathways neurodegeneration distributed in parts CNS. review reveals major neuroinflammatory signaling associated with neurodegeneration. Additionally, it explores promising therapeutic avenues, stem cell therapy, genetic intervention, nanoparticles, aiming regulate neuroinflammation potentially impede decelerate advancement these conditions. A comprehensive understanding intricate connection between diseases pivotal for development future treatment strategies can alleviate burden imposed by devastating disorders.

Language: Английский

Citations

101

An Update on Toll-like Receptor 2, Its Function and Dimerization in Pro- and Anti-Inflammatory Processes DOI Open Access
Katrin Colleselli, Anna Stierschneider, Christoph Wiesner

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(15), P. 12464 - 12464

Published: Aug. 5, 2023

While a certain level of inflammation is critical for humans to survive infection and injury, prolonged inflammatory response can have fatal consequences. Pattern recognition Toll-like receptors (TLRs) are key players in the initiation an process. TLR2 one most studied pattern (PRRs) known form heterodimers with either TLR1, TLR4, TLR6, TLR10, allowing it recognize wide range pathogens. Although large number studies been conducted over past decades, there still many unanswered questions regarding mechanisms health disease. In this review, we provide up-to-date overview TLR2, including its homo- heterodimers. Furthermore, will discuss pro- anti-inflammatory properties recent findings prominent TLR2-associated infectious neurodegenerative diseases.

Language: Английский

Citations

24

Neuroinflammation: A Critical Factor in Neurodegenerative Disorders DOI Open Access

Zahieh Suleiman Khoury,

Fatima Sohail,

Jada Wang

et al.

Cureus, Journal Year: 2024, Volume and Issue: unknown

Published: June 13, 2024

This review offers a comprehensive of the signals and paramount role neuroinflammation plays in neurodegenerative diseases such as Alzheimer's, Parkinson's, Huntington's, amyotrophic lateral sclerosis. The study explores sophisticated interactions between microglial, astrocytic, dendritic cells how affects long-term neuronal damage dysfunction. There are specific pathways related to mentioned inflammatory processes, including Janus kinases/signal transducer activator transcriptions, nuclear factor-κB, mitogen-activated protein kinases pathways. Neuroinflammation is argued be double-edged sword, being not only protective agent that prevents further neuron but also causative factor more cell injury development. concept contrasting inflammation with neuroprotection advocates for use therapeutic techniques seek modulate neuroinflammatory responses part neurodegeneration treatment. recent research findings integrated established knowledge help present image neuroinflammation's impact on its implications future therapy.

Language: Английский

Citations

9

Intranasal Administration of GRP78 Protein (HSPA5) Confers Neuroprotection in a Lactacystin-Induced Rat Model of Parkinson’s Disease DOI Open Access
М. Б. Пази, Д. В. Белан, Elena Y. Komarova

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(7), P. 3951 - 3951

Published: April 2, 2024

The accumulation of misfolded and aggregated α-synuclein can trigger endoplasmic reticulum (ER) stress the unfolded protein response (UPR), leading to apoptotic cell death in patients with Parkinson’s disease (PD). As major ER chaperone, glucose-regulated 78 (GRP78/BiP/HSPA5) plays a key role UPR regulation. GRP78 overexpression modulate UPR, block apoptosis, promote survival nigral dopamine neurons rat model pathology. Here, we explore therapeutic potential intranasal exogenous for preventing or slowing PD-like neurodegeneration lactacystin-induced model. We show that intranasally-administered rapidly enters substantia nigra pars compacta (SNpc) other afflicted brain regions. It is then internalized by microglia, development neurodegenerative process nigrostriatal system. Lactacystin-induced disturbances, such as abnormal phosphorylated pS129-α-synuclein activation pro-apoptotic GRP78/PERK/eIF2α/CHOP/caspase-3,9 signaling pathway are substantially reversed upon administration. Moreover, inhibits both microglia production proinflammatory cytokines, tumor necrosis factor-α (TNF-α) interleukin-6 (IL-6), via nuclear factor kappa-light-chain-enhancer activated B cells (NF-κB) animals. neuroprotective anti-inflammatory may inform effective agents PD synucleinopathies.

Language: Английский

Citations

8

Differential profiles of serum cytokines in Parkinson's disease according to disease duration DOI Creative Commons
Giulia Di Lazzaro, Anna Picca,

Sofia Boldrini

et al.

Neurobiology of Disease, Journal Year: 2023, Volume and Issue: 190, P. 106371 - 106371

Published: Dec. 5, 2023

Neurodegeneration and neuroinflammation are two intertwined mechanisms contributing to the pathophysiology of Parkinson's disease. Whether circulating biomarkers reflecting those processes differ according disease duration remains be established. The present study was conducted characterize individuals with PD short (≤5 years) or long (>5 years). We consecutively enrolled 104 patients evaluated them using validated clinical scales (MDS-UPDRS, Hoehn Yahr staging, MMSE). Serum samples were assayed for following biomarkers: neurofilament light chain (NfL), brain-derived neurotrophic factor (BDNF), interleukin (IL-) 1β, 4, 5, 6, 10, 17, interferon-γ, tumor necrosis α. Mean age participants 66.0 ± 9.6 years 45 (34%) women. average 8 5 (range 1 19 Patients (≤ showed a pro-inflammatory profile, significantly higher levels IL-1β lower concentrations IL-5, IL-10 IL-17 (p < 0.05). NfL serum positive correlation (respectively rho = 0.248, p 0.014 0.559, 0.001) while an opposite pattern detected BDNF −0,187, 0.034 −0.245, 0.014). Our findings suggest that status may observed in early phases disease, independently from age.

Language: Английский

Citations

10

Infections in the Etiology of Parkinson’s Disease and Synucleinopathies: A Renewed Perspective, Mechanistic Insights, and Therapeutic Implications DOI Creative Commons
Gabriela Mercado,

Christopher Kaeufer,

Franziska Richter

et al.

Journal of Parkinson s Disease, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 29

Published: Sept. 25, 2024

Increasing evidence suggests a potential role for infectious pathogens in the etiology of synucleinopathies, group age-related neurodegenerative disorders including Parkinson’s disease (PD), multiple system atrophy and dementia with Lewy bodies. In this review, we discuss link between infections synucleinopathies from historical perspective, present emerging that supports link, address current research challenges focus on neuroinflammation. Infectious can elicit neuroinflammatory response modulate genetic risk PD related synucleinopathies. The mechanisms how might be linked as well overlap immune cellular pathways affected by virulent disease-related factors are discussed. Here, an important α-synuclein against is emerging. Critical methodological knowledge gaps addressed, provide new future perspectives to these gaps. Understanding neuroinflammation influence will essential development early diagnostic tools novel therapies.

Language: Английский

Citations

3

Microglia Signaling in Health and Disease – Implications in Sex-Specific Brain Development and Plasticity DOI
Subrata Pramanik,

Hyde Thomas M,

Saswata Chakrabarty

et al.

Neuroscience & Biobehavioral Reviews, Journal Year: 2024, Volume and Issue: 165, P. 105834 - 105834

Published: July 29, 2024

Language: Английский

Citations

2

Alpha Synuclein Toxicity and Non-Motor Parkinson’s DOI Creative Commons
G. Mazzotta, Carmela Conte

Cells, Journal Year: 2024, Volume and Issue: 13(15), P. 1265 - 1265

Published: July 27, 2024

Parkinson's disease (PD) is a common multisystem neurodegenerative disorder affecting 1% of the population over age 60 years. The main neuropathological features PD are loss dopaminergic neurons in substantia nigra pars compacta (SNpc) and presence alpha synuclein (αSyn)-rich Lewy bodies both manifesting with classical motor signs. αSyn has emerged as key protein pathology it can spread through synaptic networks to reach several anatomical regions body contributing appearance non-motor symptoms (NMS) considered prevalent among individuals prior diagnosis persisting throughout patient's life. NMS mainly includes taste smell, constipation, psychiatric disorders, dementia, impaired rapid eye movement (REM) sleep, urogenital dysfunction, cardiovascular impairment. This review summarizes more recent findings on impact deposits prodromal emphasizes importance early detection toxic species biofluids peripheral biopsies prospective biomarkers PD.

Language: Английский

Citations

2

Alpha Synuclein Toxicity and Non-motor Parkinson’s DOI Open Access
G. Mazzotta, Carmela Conte

Published: June 25, 2024

Parkinson&rsquo;s disease (PD) is a common multisystem neurodegenerative disorder affecting 1% of the population above 60 years. The main neuropathological features PD are loss dopaminergic neurons in substantia nigra pars compacta (SNpc) and presence alpha synuclein (Syn)-rich Lewy bodies both manifesting with classical motor signs. Syn has emerged as key protein pathology it can spread through synaptic networks to reach several anatomical regions body contributing appearance non-motor symptoms (NMS) considerate prevalent among individuals before diagnosis persisting throughout patient&rsquo;s life. NMS mainly include taste smell, constipation, psychiatric disorders, dementia, rapid eye movement (REM) sleep behavior impairment, urogenital dysfunction, cardiovascular impairment. This review summarizes more recent findings showing impact deposits on prodromal emphasizes importance early detection toxic species biofluids peripheral biopsies prospective biomarkers PD.

Language: Английский

Citations

1

Effects of N‐acetyl‐L‐cysteine polysulfides on periodontitis in a mouse model DOI Creative Commons
Xinxin Sun, Yaru Sun,

Sumin Cao

et al.

Immunity Inflammation and Disease, Journal Year: 2023, Volume and Issue: 11(8)

Published: Aug. 1, 2023

Polysulfides are reported to be involved in various important biological processes. N-acetyl-l-cysteine polysulfide with 2 sulfane sulfur atoms (NAC-S2) regulates diverse toll-like receptor (TLR) signaling pathways. Here, we aimed determine the role of NAC-S2 periodontitis and explore potential mechanism.

Language: Английский

Citations

3