A neurotransmitter atlas of C. elegans males and hermaphrodites DOI Creative Commons
Chen Wang,

Berta Vidal,

Surojit Sural

et al.

eLife, Journal Year: 2024, Volume and Issue: 13

Published: March 20, 2024

Mapping neurotransmitter identities to neurons is key understanding information flow in a nervous system. It also provides valuable entry points for studying the development and plasticity of neuronal identity features. In Caenorhabditis elegans system, have been largely assigned by expression pattern analysis pathway genes that encode biosynthetic enzymes or transporters. However, many these assignments relied on multicopy reporter transgenes may lack relevant cis -regulatory therefore not provide an accurate picture usage. We analyzed patterns 16 CRISPR/Cas9-engineered knock-in strains all main types neurotransmitters C. (glutamate, acetylcholine, GABA, serotonin, dopamine, tyramine, octopamine) both hermaphrodite male. Our reveals novel sites systems within glia, as well non-neural cells, most notably gonadal cells. The resulting atlas defines be exclusively neuropeptidergic, substantially expands repertoire capable co-transmitting multiple neurotransmitters, identifies monoaminergic uptake. Furthermore, we observed unusual co-expression synthesis genes, suggesting existence transmitters. results what constitutes extensive whole-animal-wide map usage date, paving way better communication specification .

Language: Английский

Microbiota–gut–brain axis and its therapeutic applications in neurodegenerative diseases DOI Creative Commons
Jian Sheng Loh, Wen Qi Mak, Li Tan

et al.

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

Published: Feb. 16, 2024

Abstract The human gastrointestinal tract is populated with a diverse microbial community. vast genetic and metabolic potential of the gut microbiome underpins its ubiquity in nearly every aspect biology, including health maintenance, development, aging, disease. advent new sequencing technologies culture-independent methods has allowed researchers to move beyond correlative studies toward mechanistic explorations shed light on microbiome–host interactions. Evidence unveiled bidirectional communication between central nervous system, referred as “microbiota–gut–brain axis”. microbiota–gut–brain axis represents an important regulator glial functions, making it actionable target ameliorate development progression neurodegenerative diseases. In this review, we discuss mechanisms As provides essential cues microglia, astrocytes, oligodendrocytes, examine communications microbiota these cells during healthy states Subsequently, diseases using metabolite-centric approach, while also examining role microbiota-related neurotransmitters hormones. Next, targeting intestinal barrier, blood–brain meninges, peripheral immune system counteract dysfunction neurodegeneration. Finally, conclude by assessing pre-clinical clinical evidence probiotics, prebiotics, fecal transplantation A thorough comprehension will foster effective therapeutic interventions for management

Language: Английский

Citations

274

Revolutionizing Neurocare: Biomimetic Nanodelivery Via Cell Membranes DOI
Jun Liao, Lidong Gong,

Qingqiang Xu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(26)

Published: April 7, 2024

Abstract Brain disorders represent a significant challenge in medical science due to the formidable blood–brain barrier (BBB), which severely limits penetration of conventional therapeutics, hindering effective treatment strategies. This review delves into innovative realm biomimetic nanodelivery systems, including stem cell‐derived nanoghosts, tumor cell membrane‐coated nanoparticles, and erythrocyte membrane‐based carriers, highlighting their potential circumvent BBB's restrictions. By mimicking native properties, these nanocarriers emerge as promising solution for enhancing drug delivery brain, offering strategic advantage overcoming barrier's selective permeability. The unique benefits leveraging membranes from various sources is evaluated advanced technologies fabricating membrane‐encapsulated nanoparticles capable masquerading endogenous cells are examined. enables targeted broad spectrum therapeutic agents, ranging small molecule drugs proteins, thereby providing an approach neurocare. Further, contrasts capabilities limitations with traditional methods, underlining enable targeted, sustained, minimally invasive modalities. concluded perspective on clinical translation underscoring transformative impact landscape intractable brain diseases.

Language: Английский

Citations

32

Learning-associated astrocyte ensembles regulate memory recall DOI
Michael R. Williamson, Wookbong Kwon, Junsung Woo

et al.

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

Published: Nov. 6, 2024

Language: Английский

Citations

19

Alpha-Synuclein Contribution to Neuronal and Glial Damage in Parkinson’s Disease DOI Open Access
Kamil Saramowicz, Natalia Siwecka, Grzegorz Galita

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 25(1), P. 360 - 360

Published: Dec. 26, 2023

Parkinson’s disease (PD) is a complex neurodegenerative characterized by the progressive loss of dopaminergic neurons in substantia nigra and widespread accumulation alpha-synuclein (αSyn) protein aggregates. αSyn aggregation disrupts critical cellular processes, including synaptic function, mitochondrial integrity, proteostasis, which culminate neuronal cell death. Importantly, pathology extends beyond neurons—it also encompasses spreading throughout environment internalization microglia astrocytes. Once internalized, glia can act as neuroprotective scavengers, limit spread αSyn. However, they become reactive, thereby contributing to neuroinflammation progression PD. Recent advances research have enabled molecular diagnosis PD accelerated development targeted therapies. Nevertheless, despite more than two decades research, mechanisms, induction damage remain incompletely understood. Unraveling interplay between αSyn, neurons, may provide insights into initiation progression, bring us closer exploring new effective therapeutic strategies. Herein, we an overview recent studies emphasizing multifaceted nature its impact on both neuron glial damage.

Language: Английский

Citations

24

Astrocytes in selective vulnerability to neurodegenerative disease DOI Creative Commons
Till S. Zimmer, Adam L. Orr, Anna G. Orr

et al.

Trends in Neurosciences, Journal Year: 2024, Volume and Issue: 47(4), P. 289 - 302

Published: March 22, 2024

Selective vulnerability of specific brain regions and cell populations is a hallmark neurodegenerative disorders. Mechanisms selective involve neuronal heterogeneity, functional specializations, differential sensitivities to stressors pathogenic factors. In this review we discuss the growing body literature suggesting that, like neurons, astrocytes are heterogeneous specialized, respond integrate diverse inputs, induce effects on function. disease, undergo specific, context-dependent changes that promote different trajectories outcomes. We propose contribute through maladaptive transitions context-divergent phenotypes impair functions. Further studies multifaceted roles in disease may provide new therapeutic approaches enhance resilience against

Language: Английский

Citations

16

A Single-Cell Transcriptomic Analysis of the Mouse Hippocampus After Voluntary Exercise DOI Creative Commons
Aditi Methi, Rezaul Islam, Lalit Kaurani

et al.

Molecular Neurobiology, Journal Year: 2024, Volume and Issue: 61(8), P. 5628 - 5645

Published: Jan. 13, 2024

Exercise has been recognized as a beneficial factor for cognitive health, particularly in relation to the hippocampus, vital brain region responsible learning and memory. Previous research demonstrated that exercise-mediated improvement of memory humans rodents correlates with increased adult neurogenesis processes related enhanced synaptic plasticity. Nevertheless, underlying molecular mechanisms are not fully understood. With aim further elucidate these mechanisms, we provide comprehensive dataset mouse hippocampal transcriptome at single-cell level after 4 weeks voluntary wheel-running. Our analysis provides number interesting observations. For example, results suggest exercise affects by accelerating maturation subpopulation Prdm16-expressing neurons. Moreover, uncover existence an intricate crosstalk among multiple signaling pathways such NF-κB, Wnt/β-catenin, Notch, retinoic acid (RA) altered upon specific cluster excitatory neurons within Cornu Ammonis (CA) hippocampus. In conclusion, our study important resource sheds light on changes induced These findings have implications developing targeted interventions aimed optimizing health preventing age-related decline.

Language: Английский

Citations

12

Latest advances in mechanisms of epileptic activity in Alzheimer’s disease and dementia with Lewy Bodies DOI Creative Commons
Mariane C. Vicente,

Kwaku Addo-Osafo,

Keith Vossel

et al.

Frontiers in Neurology, Journal Year: 2024, Volume and Issue: 15

Published: Feb. 8, 2024

Alzheimer’s disease (AD) and dementia with Lewy bodies (DLB) stand as the prevailing sources of neurodegenerative dementia, impacting over 55 million individuals across globe. Patients AD DLB exhibit a higher prevalence epileptic activity compared to those other forms dementia. Seizures can accompany in early stages, associated contribute cognitive symptoms exacerbate decline. Aberrant neuronal may be caused by several mechanisms that are not yet understood. Hyperexcitability could biomarker for detection or before onset In this review, we compare contrast network hyperexcitability DLB. We examine contributions genetic risk factors, Ca 2+ dysregulation, glutamate, AMPA NMDA receptors, mTOR, pathological amyloid beta, tau α-synuclein, altered microglial astrocytic activity, impaired inhibitory interneuron function. By gaining deeper understanding molecular cause hyperexcitability, might uncover therapeutic approaches effectively ease slow down advancement

Language: Английский

Citations

12

Extracellular ATP/adenosine dynamics in the brain and its role in health and disease DOI Creative Commons
Eiji Shigetomi, K Sakai, Schuichi Koizumi

et al.

Frontiers in Cell and Developmental Biology, Journal Year: 2024, Volume and Issue: 11

Published: Jan. 18, 2024

Extracellular ATP and adenosine are neuromodulators that regulate numerous neuronal functions in the brain. Neuronal activity brain insults such as ischemic traumatic injury upregulate these neuromodulators, which exert their effects by activating purinergic receptors. In addition, extracellular ATP/adenosine signaling plays a pivotal role pathogenesis of neurological diseases. Virtually every cell type contributes to elevation ATP/adenosine, various mechanisms underlying this increase have been proposed. is thought be mainly produced via degradation ATP. However, also released from neurons glia Therefore, regulation physiological pathophysiological conditions likely far more complex than previously thought. To elucidate levels, accurate methods assessing spatiotemporal dynamics needed. Several novel techniques for acquiring information on including fluorescent sensors, developed started reveal release, uptake ATP/adenosine. Here, we review analyzing well current state knowledge We focus used cooperatively produce activity-dependent its significance

Language: Английский

Citations

11

Inflammatory Pathogenesis of Post-stroke Depression DOI Creative Commons
Xinyu Feng, Xiaojuan Ma, Juan Li

et al.

Aging and Disease, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Post-stroke depression (PSD) is a complex mood disorder that emerges in individuals following stroke, characterized by the development of depressive symptoms. The pathogensis PSD diverse, with inflammation playing vital role its onset and progression. Emerging evidence suggests microglial activation, astrocyte responses, nuclear factor κB(NF-κB) signaling, dysregulation hypothalamic pituitary adrenal (HPA) axis, alterations brain-derived neurotrophic (BDNF) expression, neurotransmitter imbalances, adenosine triphosphate (ATP) receptors oxidative stress are intricately linked to pathogenesis PSD. involvement inflammatory cytokines these processes highlights significance pathway. Integrating hypotheses, mechanism offers novel perspective expand therapeutic strategies for

Language: Английский

Citations

11

Tonic NMDA Receptor Currents in the Brain: Regulation and Cognitive Functions DOI
HaYoung Kim, Soo-Young Choi,

Euisun Lee

et al.

Biological Psychiatry, Journal Year: 2024, Volume and Issue: 96(3), P. 164 - 175

Published: March 13, 2024

Language: Английский

Citations

11