Synapse vulnerability and resilience underlying Alzheimer’s disease DOI Creative Commons
Raquel N. Taddei, Karen Duff

EBioMedicine, Journal Year: 2025, Volume and Issue: 112, P. 105557 - 105557

Published: Jan. 31, 2025

Synapse preservation is key for healthy cognitive ageing, and synapse loss represents a critical anatomical basis of dysfunction in Alzheimer's disease (AD), predicting dementia onset, severity, progression. viewed as primary pathologic event, preceding neuronal brain atrophy AD. Synapses may, therefore, represent one the earliest clinically most meaningful targets neuropathologic processes driving AD dementia. The highly selective particularly vulnerable synapses while leaving others, termed resilient, largely unaffected. Yet, anatomic molecular hallmarks resilient populations their association with changes (e.g. amyloid-β plaques tau tangles) memory remain poorly understood. Characterising selectively may be to understanding mechanisms versus enable development robust biomarkers disease-modifying therapies

Language: Английский

Recent advances in Alzheimer’s disease: Mechanisms, clinical trials and new drug development strategies DOI Creative Commons
Jifa Zhang, Yinglu Zhang, Jiaxing Wang

et al.

Signal Transduction and Targeted Therapy, Journal Year: 2024, Volume and Issue: 9(1)

Published: Aug. 23, 2024

Abstract Alzheimer’s disease (AD) stands as the predominant form of dementia, presenting significant and escalating global challenges. Its etiology is intricate diverse, stemming from a combination factors such aging, genetics, environment. Our current understanding AD pathologies involves various hypotheses, cholinergic, amyloid, tau protein, inflammatory, oxidative stress, metal ion, glutamate excitotoxicity, microbiota-gut-brain axis, abnormal autophagy. Nonetheless, unraveling interplay among these pathological aspects pinpointing primary initiators require further elucidation validation. In past decades, most clinical drugs have been discontinued due to limited effectiveness or adverse effects. Presently, available primarily offer symptomatic relief often accompanied by undesirable side However, recent approvals aducanumab ( 1 ) lecanemab 2 Food Drug Administration (FDA) present potential in disrease-modifying Nevertheless, long-term efficacy safety need Consequently, quest for safer more effective persists formidable pressing task. This review discusses pathogenesis, advances diagnostic biomarkers, latest updates trials, emerging technologies drug development. We highlight progress discovery selective inhibitors, dual-target allosteric modulators, covalent proteolysis-targeting chimeras (PROTACs), protein-protein interaction (PPI) modulators. goal provide insights into prospective development application novel drugs.

Language: Английский

Citations

129

Innate immune activation in neurodegenerative diseases DOI
Sergio Castro‐Gomez, Michael T. Heneka

Immunity, Journal Year: 2024, Volume and Issue: 57(4), P. 790 - 814

Published: April 1, 2024

Language: Английский

Citations

21

Immune Activation in Alzheimer Disease DOI
Arnaud Mary, Renzo Mancuso, Michael T. Heneka

et al.

Annual Review of Immunology, Journal Year: 2024, Volume and Issue: 42(1), P. 585 - 613

Published: March 1, 2024

Alzheimer disease (AD) is the most common neurodegenerative disease, and with no efficient curative treatment available, its medical, social, economic burdens are expected to dramatically increase. AD historically characterized by amyloid β (Aβ) plaques tau neurofibrillary tangles, but over last 25 years chronic immune activation has been identified as an important factor contributing pathogenesis. In this article, we review recent advances in our understanding of significance development AD. We describe how brain-resident macrophages, microglia, able detect Aβ species be activated, well consequences activated microglia discuss transcriptional changes AD, their unique heterogeneity humans, emerging strategies study human microglia. Finally, expose, beyond role peripheral signals different cell types activation.

Language: Английский

Citations

19

Microglia and amyloid plaque formation in Alzheimer's disease – Evidence, possible mechanisms, and future challenges DOI Creative Commons
Stefanie Fruhwürth, Henrik Zetterberg, Søren R. Paludan

et al.

Journal of Neuroimmunology, Journal Year: 2024, Volume and Issue: 390, P. 578342 - 578342

Published: April 5, 2024

Alzheimer's disease (AD) is a neurodegenerative characterized by cognitive decline that severely affects patients and their families. Genetic environmental risk factors, such as viral infections, synergize to accelerate the aging-associated neurodegeneration. factors for late-onset AD (LOAD), which accounts most cases, are predominantly implicated in microglial immune cell functions. As such, microglia play major role amyloid beta (Aβ) plaque (the pathological hallmark of AD) formation. This review aims provide an overview current knowledge regarding Aβ formation, well impact on morphological functional diversity plaques. Based this discussion, we seek identify challenges opportunities field with potential therapeutic implications.

Language: Английский

Citations

19

Neuroinflammation in Alzheimer disease DOI
Wiesje M. van der Flier, Wiesje M. van der Flier,

Frank Jessen

et al.

Nature reviews. Immunology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Language: Английский

Citations

16

Comprehensive characterization of the transcriptional landscape in Alzheimer’s disease (AD) brains DOI Creative Commons
Chengxuan Chen, Zhao Zhang, Yuan Liu

et al.

Science Advances, Journal Year: 2025, Volume and Issue: 11(1)

Published: Jan. 3, 2025

Alzheimer’s disease (AD) is the leading dementia among elderly with complex origins. Despite extensive investigation into AD-associated protein-coding genes, involvement of noncoding RNAs (ncRNAs) and posttranscriptional modification (PTM) in AD pathogenesis remains unclear. Here, we comprehensively characterized landscape ncRNAs PTM events 1460 samples across six brain regions sourced from Mount Sinai/JJ Peters VA Medical Center Brain Bank Study Mayo cohorts, encompassing 33,321 long ncRNAs, 92,897 enhancer RNAs, 53,763 alternative polyadenylation events, 900,221 A-to-I RNA editing events. We additionally identified 25,351 aberrantly expressed altered associated traits further corresponding genes to construct regulatory networks. Furthermore, developed a user-friendly data portal, ADatlas, facilitating users exploring our results. Our study aims establish comprehensive platform for PTMs advance related research.

Language: Английский

Citations

2

Mitochondrial Dynamics in Neurodegenerative Diseases: Unraveling the Role of Fusion and Fission Processes DOI Open Access
Hubert Grel, Damian Woźnica, Katarzyna Ratajczak

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(17), P. 13033 - 13033

Published: Aug. 22, 2023

Neurodegenerative diseases (NDs) are a diverse group of disorders characterized by the progressive degeneration and death neurons, leading to range neurological symptoms. Despite heterogeneity these conditions, common denominator is implication mitochondrial dysfunction in their pathogenesis. Mitochondria play crucial role creating biomolecules, providing energy through adenosine triphosphate (ATP) generated oxidative phosphorylation (OXPHOS), producing reactive oxygen species (ROS). When they’re not functioning correctly, becoming fragmented losing membrane potential, they contribute diseases. In this review, we explore how mitochondria fuse undergo fission, especially context NDs. We discuss genetic protein mutations linked impact dynamics. also look at key regulatory proteins fusion (MFN1, MFN2, OPA1) fission (DRP1 FIS1), including post-translational modifications. Furthermore, highlight potential drugs that can influence By unpacking complex processes, aim direct research towards treatments improve life quality for people with challenging conditions.

Language: Английский

Citations

40

Artificial intelligence for drug discovery and development in Alzheimer's disease DOI Creative Commons
Yunguang Qiu, Feixiong Cheng

Current Opinion in Structural Biology, Journal Year: 2024, Volume and Issue: 85, P. 102776 - 102776

Published: Feb. 8, 2024

The complex molecular mechanism and pathophysiology of Alzheimer's disease (AD) limits the development effective therapeutics or prevention strategies. Artificial Intelligence (AI)-guided drug discovery combined with genetics/multi-omics (genomics, epigenomics, transcriptomics, proteomics, metabolomics) analysis contributes to understanding precision medicine disease, including AD AD-related dementia. In this review, we summarize AI-driven methodologies for AD-agnostic development, de novo design, virtual screening, prediction drug-target interactions, all which have shown potentials. particular, AI-based repurposing emerges as a compelling strategy identify new indications existing drugs AD. We provide several emerging targets from human genetics multi-omics findings highlight recent technologies their applications in using prototypical example. closing, discuss future challenges directions other neurodegenerative diseases.

Language: Английский

Citations

13

Genetic forms of tauopathies: inherited causes and implications of Alzheimer’s disease-like TAU pathology in primary and secondary tauopathies DOI Creative Commons
Felix Langerscheidt, Tamara Wied, Mohamed Aghyad Al Kabbani

et al.

Journal of Neurology, Journal Year: 2024, Volume and Issue: 271(6), P. 2992 - 3018

Published: March 30, 2024

Abstract Tauopathies are a heterogeneous group of neurologic diseases characterized by pathological axodendritic distribution, ectopic expression, and/or phosphorylation and aggregation the microtubule-associated protein TAU, encoded gene MAPT . Neuronal dysfunction, dementia, neurodegeneration common features these often detrimental diseases. A neurodegenerative disease is considered primary tauopathy when mutations/haplotypes its cause TAU main feature. In case pathology observed but superimposed another hallmark, condition classified as secondary tauopathy. some tauopathies (e.g. -associated frontotemporal dementia (FTD), progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), Alzheimer's (AD)) recognized significant pathogenic driver disease. many tauopathies, including Parkinson's (PD) Huntington's (HD), suggested to contribute development in others Niemann-Pick (NPC)) may only be bystander. The genetic mechanisms underlying not fully understood. this review, predispositions variants associated with both examined detail, assessing evidence for role conditions. We highlight less forms increase awareness disorders involvement their pathology. This approach contributes deeper understanding conditions also lay groundwork potential TAU-based therapeutic interventions various tauopathies.

Language: Английский

Citations

13

Brain responses to intermittent fasting and the healthy living diet in older adults DOI
Dimitrios Kapogiannis, Apostolos Manolopoulos, Roger J. Mullins

et al.

Cell Metabolism, Journal Year: 2024, Volume and Issue: 36(8), P. 1668 - 1678.e5

Published: June 19, 2024

Language: Английский

Citations

13