Advances in Research on Meningeal Lymphatic Vessels in Central Nervous System Diseases DOI
Huimin Shen,

Bingrui Zhu,

Yajun Qian

et al.

Journal of Craniofacial Surgery, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Meningeal lymphatic vessels (mLVs), located around the dural sinuses, are considered significant participants in cerebrospinal fluid (CSF) circulation. not only drain fluids and metabolic waste from brain into deep cervical lymph nodes (dCLNs) but also transport immune cells to dCLNs, thus regulating interaction between central peripheral systems. These play a crucial role maintaining normal physiological functions of nervous system (CNS). involved pathophysiological processes various CNS diseases, including neurodegenerative cerebrovascular tumors. In aging damage dysfunction mLVs have been observed, leading abnormal accumulation toxic substances exacerbating neural damage. By transporting antigen-presenting that taken up antigens within modulate activation their migration infiltration lesions. Certain drug interventions or physical therapies can drainage function mLVs, effectively improving prognosis diseases. This review provides detailed introduction anatomic structure, roles, research advances addition, we propose new strategies for targeting treatment

Language: Английский

Type-I nNOS neurons orchestrate cortical neural activity and vasomotion DOI Open Access
Kevin L. Turner,

Dakota F. Brockway,

Md Shakhawat Hossain

et al.

Published: April 9, 2025

It is unknown how the brain orchestrates coordination of global neural and vascular dynamics. We sought to uncover role a sparse but unusual population genetically-distinct interneurons known as type-I nNOS neurons, using novel pharmacological strategic unilaterally ablate these neurons from somatosensory cortex mice. Region-specific ablation produced changes in both activity dynamics, decreased power delta-band local field potential, reduced sustained responses prolonged sensory stimulation, abolished post-stimulus undershoot cerebral blood volume. Coherence between left right gamma-band envelope volume at ultra-low frequencies was decreased, suggesting type-1 integrate long-range signals. Lastly, we observed decreases amplitude resting-state oscillations vasomotion following neurons. This demonstrates that small nNOS-positive are indispensable for regulating dynamics whole implicates disruption diseases ranging neurodegeneration sleep disturbances.

Language: Английский

Citations

0

Mechanosensitive apoptosis in Alzheimer’s disease DOI Open Access

G.V. Sapozhnikov,

Rajesh Ranganathan, Shoutang Wang

et al.

Ageing and Neurodegenerative Diseases, Journal Year: 2025, Volume and Issue: 5(2)

Published: April 28, 2025

The incidence of neurodegenerative diseases is increasing exponentially, with Alzheimer’s disease (AD) being a notorious example. AD progressive, aging-related, multifactorial disease, and no uniform theory exists regarding its etiology. One hypothesis implicates defects in the organism’s mechanosensing mechanotransduction mechanisms. deleterious effects mechanical stress neurodegeneration have been proven through multiple studies observations, but pathways linking inputs to progression remain unclear. It has proposed that nervous tissue primarily responds sources astrocytes microglia, activation Piezo1 TRPV4 ion channels. An area current research examining might be involved elevated oxidative dysregulated apoptotic pathways. We summarized understanding related AD. Our review indicated relationship between crucial Hippo pathway (MST1 humans) KCNN4 worth following up future studies. noted G3BP1 G3BP2 FlnA-mediated are linked ceramide production, along their interaction granules - key element for onset apoptosis, which assembled, among others, response stress. This sheds light on how input disrupts what implications also identifies potential targets focus.

Language: Английский

Citations

0

Meningeal lymphatic drainage: novel insights into central nervous system disease DOI Creative Commons
Qiang Zhang, Yin Niu,

Yingpei Li

et al.

Signal Transduction and Targeted Therapy, Journal Year: 2025, Volume and Issue: 10(1)

Published: May 4, 2025

Abstract In recent years, increasing evidence has suggested that meningeal lymphatic drainage plays a significant role in central nervous system (CNS) diseases. Studies have indicated CNS diseases and conditions associated with dysfunction include neurodegenerative diseases, stroke, infections, traumatic brain injury, tumors, functional cranial disorders, hydrocephalus. However, the understanding of regulatory damage mechanisms lymphatics under physiological pathological is currently limited. Given importance profound interplay between this review covers seven key aspects: development structure vessels, methods for observing lymphatics, function molecular relationships vessels potential conclusions outstanding questions. We will explore relationship development, structure, current both animal models humans, identify unresolved points research. The aim to provide new directions future research therapeutic strategies targeting by critically analyzing advancements field, identifying gaps knowledge, proposing innovative approaches address these gaps.

Language: Английский

Citations

0

The glycosaminoglycan chains of perlecan regulate the perivascular fluid transport DOI Creative Commons
Abhishek Singh, Mika Kaakinen, Harri Elamaa

et al.

Fluids and Barriers of the CNS, Journal Year: 2025, Volume and Issue: 22(1)

Published: May 8, 2025

Abstract Background The perivascular conduct pathway that connects the cerebrospinal fluid spaces with interstitial in parenchyma are of importance for solute clearance from brain. In this pathway, relatively wide space (PVS) surrounding pial arteries provides a low-resistant passage while around perforating arteries, movement is along basement membrane (BM), prevents free exchange fluids and solutes. We hypothesize selectivity involves specific components vascular BM, which mainly composed type IV collagen (Col IV) laminin networks interconnected by nidogens heparan sulphate proteoglycans (HSPGs). Perlecan major HSPG BM binds to Col via glycosaminoglycan (GAG) chains form molecular sieve. GAGs may also provide charge required filtration, scaffold amyloid-β (Aβ) aggregation. purpose study was functional characterization transport brain mice lacking perlecan GAG chains. Methods generated novel mouse line ( Hspg2 ∆3∆91 ) side investigated flow these using intravital multiphoton fluorescence recovery after photobleaching techniques, assays various tracers. Potentially deleterious effects on homeostasis were transcriptomic, proteomic immunohistochemical methods. crossed 5xFAD examine Aβ Results observed delayed inflow CSF tracer into no changes parenchymal injected Quantification plaques revealed fewer smaller walls at six months age, but not parenchyma. Surprisingly, deficiency had severe transcriptomic analyses. Conclusions Potential mechanisms dependent through special ECM structures. known its barrier function, whereas very little about how established. This shows composition affects dynamics deposition periarterial space.

Language: Английский

Citations

0

Occlusal force orchestrates alveolar bone homeostasis via Piezo1 in female mice DOI Creative Commons
Yiling Yang, Qinggang Dai, Xin Gao

et al.

Journal of Bone and Mineral Research, Journal Year: 2024, Volume and Issue: 39(5), P. 580 - 594

Published: March 3, 2024

Abstract Healthy alveolar bone is the cornerstone of oral function and treatment. Alveolar highly dynamic during entire lifespan affected by both systemic local factors. Importantly, subjected to unique occlusal force in daily life, mechanical a powerful trigger remodeling, but effect maintaining mass remains ambiguous. In this study, Piezo1 channel identified as an sensor. Activation rescues loss caused force. Moreover, we identify mediator osteoblasts, homeostasis directly promoting osteogenesis sequentially regulating catabolic metabolism through Fas ligand (FasL)-induced osteoclastic apoptosis. Interestingly, activation also exhibits remarkable efficacy treatment osteoporosis estrogen deficiency, which prevalent among middle-aged elderly women. Promisingly, may serve not only target for loss-induced potential metabolic loss, especially older patients.

Language: Английский

Citations

3

Ligation of cervical lymphatic vessels decelerates blood clearance and worsens outcomes after experimental subarachnoid hemorrhage DOI
Shi-Qiao Luo, Sheng-Qing Gao,

Maoxing Fei

et al.

Brain Research, Journal Year: 2024, Volume and Issue: 1837, P. 148855 - 148855

Published: March 11, 2024

Language: Английский

Citations

3

Pharmacology of PIEZO1 channels DOI Creative Commons
Jacob A. Kinsella, Marjolaine Debant, Gregory Parsonage

et al.

British Journal of Pharmacology, Journal Year: 2024, Volume and Issue: 181(23), P. 4714 - 4732

Published: Oct. 14, 2024

Abstract PIEZO1 is a eukaryotic membrane protein that assembles as trimers to form calcium‐permeable, non‐selective cation channels with exquisite capabilities for mechanical force sensing and transduction of into effect in diverse cell types include blood cells, endothelial epithelial fibroblasts stem cells systems bone, lymphatics muscle. The channel has wide‐ranging roles considered target novel therapeutics ailments spanning cancers cardiovascular, dental, gastrointestinal, hepatobiliary, infectious, musculoskeletal, nervous system, ocular, pregnancy, renal, respiratory urological disorders. identification modulators its infancy but useful experimental tools emerged activating, lesser extent inhibiting, the channels. Elementary structure–activity relationships are known Yoda series small molecule agonists, which show potential physicochemical pharmacological properties. Intriguing effects Yoda1 stimulated removal excess cerebrospinal fluid. Despite PIEZO1's broad expression, opportunities suggested selective positive or negative modulation without intolerable adverse effects. Here we provide focused, non‐systematic, narrative review progress this pharmacology discuss future directions research area.

Language: Английский

Citations

3

Deformability of Heterogeneous Red Blood Cells in Aging and Related Pathologies DOI Creative Commons
Dmitry S. Prudinnik,

Aigul Kussanova,

Ivan A. Vorobjev

et al.

Aging and Disease, Journal Year: 2024, Volume and Issue: unknown, P. 0 - 0

Published: Jan. 1, 2024

Aging is interrelated with changes in red blood cell parameters and functionality. In this article, we focus on cells (RBCs) provide a review of the known associated characterization RBC deformability aging related pathologies. The biophysical complement commonly used biochemical may contribute to better understanding process. power measurement approach well established clinical settings. Measuring RBCs' has advantage relative simplicity, it reflects complex effects developing erythrocytes during aging. However, pathological conditions also promote heterogeneity features have certain impact variance erythrocyte properties. possible applications as an early biomarker states are discussed, modulating PIEZO1 therapeutic target suggested. shape can serve proxy for evaluation, leveraging single-cell analysis imaging flow cytometry artificial intelligence algorithms. RBCs progress humans will dynamics

Language: Английский

Citations

1

Neuroinflammatory pathways and potential therapeutic targets in neonatal post-hemorrhagic hydrocephalus DOI
Lauren N. Schulz, Abin Varghese, Marie Michenkova

et al.

Pediatric Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Language: Английский

Citations

1

Ultrasonic cerebrospinal fluid clearance improves outcomes in hemorrhagic brain injury models DOI Creative Commons
Matine Azadian,

Nicholas Macedo,

Brenda Yu

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 3, 2024

Introduction (Abstract) Impaired clearance of the byproducts aging and neurologic disease from brain exacerbates progression severity. We have developed a noninvasive, low intensity transcranial focused ultrasound protocol that facilitates removal pathogenic substances cerebrospinal fluid (CSF) interstitium. This clears neurofilament light chain (NfL) – an byproduct in aged mice red blood cells (RBCs) central nervous system two mouse models hemorrhagic injury. Cleared RBCs accumulate cervical lymph nodes both CSF interstitial compartments, indicating through meningeal lymphatics. Treating these injury with this reduced neuroinflammatory neurocytotoxic profiles, improved behavioral outcomes, decreased morbidity and, importantly, increased survival. RBC efficacy was blocked by mechanosensitive channel antagonism effective when applied anesthetized subjects, mediated mechanism does not depend on sensory stimulation or specific neural activity pattern. Notably, qualifies for FDA non-significant risk designation given its intensity, making it readily clinically translatable. Overall, our results demonstrate low-intensity hemorrhage other harmful via lymphatic system, potentially offering novel therapeutic tool varied disorders.

Language: Английский

Citations

0