更新于：2024-11-01

APP x M1 receptor

更新于：2024-11-01

基本信息

关联

项与 APP x M1 receptor 相关的药物

NGX-292

靶点

APP x M1 receptor

作用机制

APP抑制剂 [+1]

在研机构-

原研机构

Life Science Research Israel

在研适应症-

非在研适应症

认知障碍

最高研发阶段无进展

首次获批国家/地区-

首次获批日期1800-01-20

100 项与 APP x M1 receptor 相关的临床结果

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100 项与 APP x M1 receptor 相关的转化医学

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0 项与 APP x M1 receptor 相关的专利（医药）

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项与 APP x M1 receptor 相关的文献（医药）

2024-04-01·Biomedicine & Pharmacotherapy

A M1 muscarinic acetylcholine receptor-specific positive allosteric modulator VU0486846 reduces neurogliosis in female Alzheimer’s mice

Article

作者: Colson, Tash-Lynn L ; Abd-Elrahman, Khaled S ; Ferguson, Stephen S G ; Sarasija, Shaarika

Alzheimer's disease (AD) is the most prevalent type of dementia, disproportionately affecting females, who make up nearly 60% of diagnosed cases. In AD patients, the accumulation of beta-amyloid (Aβ) in the brain triggers a neuroinflammatory response driven by neuroglia, worsening the condition. We have previously demonstrated that VU0486846, an orally available positive allosteric modulator (PAM) targeting M1 muscarinic acetylcholine receptors, enhances cognitive function and reduces Aβ pathology in female APPswe/PSEN1ΔE9 (APP/PS1) mice. However, it remained unclear whether these improvements were linked to a decrease in neuroglial activation. To investigate, we treated nine-month-old APP/PS1 and wildtype mice with VU0486846 for 8 weeks and analyzed brain slices for markers of microglial activation (ionized calcium binding adaptor molecule 1, Iba1) and astrocyte activation (Glial fibrillary acidic protein, GFAP). We find that VU0486846 reduces the presence of Iba1-positive microglia and GFAP-positive astrocytes in the hippocampus of female APP/PS1 mice and limits the recruitment of these cells to remaining Aβ plaques. This study sheds light on an additional mechanism through which novel M1 mAChR PAMs exhibit disease-modifying effects by reducing neuroglial activation and underscore the potential of these ligands for the treatment of AD, especially in females.

2024-01-01·Psychiatry Research

Lower levels of soluble β-amyloid precursor protein, but not β-amyloid, in the frontal cortex in schizophrenia

Article

作者: Masters, Colin L ; Li, Qiao-Xin ; Dean, Brian ; Scarr, Elizabeth ; Duce, James

We identified a sub-group (25%) of people with schizophrenia (muscarinic receptor deficit schizophrenia (MRDS)) that are characterised because of markedly lower levels of cortical muscarinic M1 receptors (CHRM1) compared to most people with the disorder (non-MRDS). Notably, bioinformatic analyses of our cortical gene expression data shows a disturbance in the homeostasis of a biochemical pathway that regulates levels of CHRM1. A step in this pathway is the processing of β-amyloid precursor protein (APP) and therefore we postulated there would be altered levels of APP in the frontal cortex from people with MRDS. Here we measure levels of CHRM1 using [³H]pirenzepine binding, soluble APP (sAPP) using Western blotting and amyloid beta peptides (Aβ1-40 and Aβ1-42) using ELISA in the frontal cortex (Brodmann's area 6: BA 6; MRDS = 14, non-MRDS = 14, controls = 14). We confirmed the MRDS cohort in this study had the expected low levels of [³H]pirenzepine binding. In addition, we showed that people with schizophrenia, independent of their sub-group status, had lower levels of sAPP compared to controls but did not have altered levels of Aβ1-40 or Aβ1-42. In conclusion, whilst changes in sAPP are not restricted to MRDS our data could indicate a role of APP, which is important in axonal and synaptic pruning, in the molecular pathology of the syndrome of schizophrenia.

2021-07-01·Neuron1区 · 医学

Enhancing myelin renewal reverses cognitive dysfunction in a murine model of Alzheimer’s disease

1区 · 医学

Article

作者: Mei, Feng ; Li, Rong-Rong ; Liu, Kun ; Wang, Fei ; Hu, Bo ; Chen, Lin ; Chan, Jonah R ; Chen, Jing-Fei ; Ren, Shu-Yu ; Xiao, Lan ; Chen, Hao ; Xin, Wendy ; Li, Rui-Xue

Severe cognitive decline is a hallmark of Alzheimer's disease (AD). In addition to gray matter loss, significant white matter pathology has been identified in AD patients. Here, we characterized the dynamics of myelin generation and loss in the APP/PS1 mouse model of AD. Unexpectedly, we observed a dramatic increase in the rate of new myelin formation in APP/PS1 mice, reminiscent of the robust oligodendroglial response to demyelination. Despite this increase, overall levels of myelination are decreased in the cortex and hippocampus of APP/PS1 mice and postmortem AD tissue. Genetically or pharmacologically enhancing myelin renewal, by oligodendroglial deletion of the muscarinic M1 receptor or systemic administration of the pro-myelinating drug clemastine, improved the performance of APP/PS1 mice in memory-related tasks and increased hippocampal sharp wave ripples. Taken together, these results demonstrate the potential of enhancing myelination as a therapeutic strategy to alleviate AD-related cognitive impairment.

项与 APP x M1 receptor 相关的新闻（医药）

2023-10-26

·GlobeNewswire-Health Care

Anavex Life Sciences Reports New Publication in Scientific Journal Demonstrating the Potential of ANAVEX®3-71 to Prevent Cognitive Decline in Alzheimer’s Disease

ANAVEX®3-71 treatment prevents cognitive impairment, reduces amyloid, and neuroinflammation even after a long drug washout ANAVEX®3-71 halts neurodegeneration and prevents cognitive decline in a transgenic Alzheimer’s disease model Confirmation of Anavex’s upstream SIGMAR1 oral small molecule drug platform in Alzheimer’s disease Anavex Life Sciences Corp. (“Anavex” or the “Company”) (Nasdaq: AVXL), a clinical-stage biopharmaceutical company developing differentiated therapeutics for the treatment of neurodegenerative and neurodevelopmental disorders, including Alzheimer's disease, Parkinson's disease, Rett syndrome, and other central nervous system (CNS) diseases, today reported a new peer-reviewed publication in the journal Neurobiology of Aging, titled “Early treatment with an M1 and sigma-1 receptor agonist prevents cognitive decline in a transgenic rat model displaying Alzheimer-like amyloid pathology”, featuring the orally available small molecule ANAVEX®3-71 (AF710B).1 This study ascertains potential disease-modifying properties of ANAVEX®3-71 (AF710B) on Alzheimer’s disease (AD) pathology and could be a drug candidate for a once daily oral preventive strategy. ANAVEX®3-71 activates the sigma-1 receptor (SIGMAR1) and the M1 muscarinic receptor (M1R). Data suggests that activation of SIGMAR1 results in the restoration of homeostatic function within the body and is pivotal to restoring neural cell balance and promoting neuroplasticity.2 Previous studies of ANAVEX®3-71 have demonstrated its potential to treat Alzheimer’s disease (AD)-like pathology at advanced stages of disease in animal models.3,4 ANAVEX®3-71, an orally available small molecule, has already successfully completed a Phase 1 human clinical trial demonstrating good safety and tolerability signals at all doses studied.5 In this publication, transgenic rats that develop AD-like symptoms as they age were treated with ANAVEX®3-71 for 7-months before they developed amyloid plaques, followed by a 4-week washout period. Preventative treatment with ANAVEX®3-71 reduced levels of insoluble and soluble amyloid-beta as well as plaque deposition in the aging cortex and hippocampus, areas heavily impacted by AD. Notably, the reduction in amyloid pathology was accompanied by a reduction in inflammatory glial activity which is connected to the disease cascade in AD and other dementias. ANAVEX®3-71 treatment downregulated the proinflammatory IL-1β and IL-6 cytokines, which are known to be associated with AD. Additionally, ANAVEX®3-71 treatment boosted brain derived neurotrophic factor (BDNF) which reinforces the evidence that ANAVEX®3-71 protects neurons. Importantly, these beneficial effects were sustained after a month-long drug washout. This differentiates ANAVEX®3-71 from other therapeutic approaches and suggests long-lasting, disease-modifying effects on AD pathology. This long-lasting effect was also observed in previous animal studies of ANAVEX®3-71 at advanced stages of the disease. The publication is consistent with previous scientific findings, including with the more advanced drug candidate ANAVEX®2-73 (blarcamesine), which successfully completed a Phase 2b/3 study in early Alzheimer’s disease, that SIGMAR1 activation acts upstream of multiple contributors to AD and other dementias including but not limited to mitochondrial dysfunction6, oxidative stress7, impaired autophagy8 and that amyloid pathology can be reduced by M1R stimulation9. The authors of the paper (Neurobiology of Aging 132 (2023) 220–232) from the Laboratory of Professor Cuello, MD at McGill University concluded: “This involved study could be considered as proof of principle for preventive therapies in Alzheimer’s disease and illustrates that this category of compounds, or similar effective agents, could be considered as candidates for preventive strategies to slow down the early amyloid pathology in Alzheimer’s disease, a condition that is increasingly diagnosed at preclinical stages.” “This publication is a confirmation of the scientific depth of Anavex’s upstream SIGMAR1 platform, which gives hope to the Alzheimer’s disease community, especially for the patients, families and caregivers who fight everyday against this devastating disease for a potential disease-modifying drug candidate with a once daily oral preventive strategy. We also look forward to presenting in an upcoming major publication the complete dataset of the Phase 2b/3 Alzheimer’s disease trial of ANAVEX®2-73 (blarcamesine), a potential next-generation precision medicine convenient once daily oral Alzheimer’s disease treatment,” said Christopher U Missling, PhD, President and Chief Executive Officer of Anavex. "We are also on track within our neurodevelopmental precision medicine Rett syndrome program to release top-line data of ANAVEX®2-73-RS-003 Phase 2/3 EXCELLENCE pediatric clinical trial in the current quarter of 2023.” Anavex Life Sciences Corp. (Nasdaq: AVXL) is a publicly traded biopharmaceutical company dedicated to the development of novel therapeutics for the treatment of neurodegenerative and neurodevelopmental disorders, including Alzheimer's disease, Parkinson's disease, Rett syndrome, and other central nervous system (CNS) diseases, pain, and various types of cancer. Anavex's lead drug candidate, ANAVEX®2-73 (blarcamesine), has successfully completed a Phase 2a and a Phase 2b/3 clinical trial for Alzheimer's disease, a Phase 2 proof-of-concept study in Parkinson's disease dementia, and both a Phase 2 and a Phase 3 study in adult patients with Rett syndrome. ANAVEX®2-73 is an orally available drug candidate that restores cellular homeostasis by targeting sigma-1 and muscarinic receptors. Preclinical studies demonstrated its potential to halt and/or reverse the course of Alzheimer's disease. ANAVEX®2-73 also exhibited anticonvulsant, anti-amnesic, neuroprotective, and anti-depressant properties in animal models, indicating its potential to treat additional CNS disorders, including epilepsy. The Michael J. Fox Foundation for Parkinson's Research previously awarded Anavex a research grant, which fully funded a preclinical study to develop ANAVEX®2-73 for the treatment of Parkinson's disease. ANAVEX®3-71, which targets sigma-1 and M1 muscarinic receptors, is a promising clinical stage drug candidate demonstrating disease-modifying activity against the major hallmarks of Alzheimer's disease in transgenic (3xTg-AD) mice, including cognitive deficits, amyloid, and tau pathologies. In preclinical trials, ANAVEX®3-71 has shown beneficial effects on mitochondrial dysfunction and neuroinflammation. Further information is available at www.anavex.com. You can also connect with the Company on Twitter, Facebook, Instagram, and LinkedIn. 1 Orciani C, Do Carmo S, Foret MK, et al. Early treatment with an M1 and sigma-1 receptor agonist prevents cognitive decline in a transgenic rat model displaying Alzheimer-like amyloid pathology [published online ahead of print, 2023 Sep 26]. Neurobiol Aging. 2023;132:220-232. doi:10.1016/j.neurobiolaging.2023.09.010 2 Advances in Experimental Medicine and Biology Volume 964 (2017) Sigma Receptors: Their Role in Disease and as Therapeutic Targets. 3 Fisher A, Bezprozvanny I, Wu L, et al. AF710B, a Novel M1/σ1 Agonist with Therapeutic Efficacy in Animal Models of Alzheimer’s Disease. Neurodegener Dis. 2016;16(1-2):95-110. doi:10.1159/000440864 4 Hall H, Iulita MF, Gubert P, et al. AF710B, an M1/sigma-1 receptor agonist with long-lasting disease-modifying properties in a transgenic rat model of Alzheimer's disease. Alzheimers Dement. 2018;14(6):811-823. doi:10.1016/j.jalz.2017.11.009 5 Fadiran EO, Hammond E, Tran J, et al. Concentration-QTc Relationship from a Single Ascending Dose Study of ANAVEX3-71, a Novel Sigma-1 Receptor and Allosteric M1 Muscarinic Receptor Agonist in Development for the Treatment of Frontotemporal Dementia, Schizophrenia, and Alzheimer's Disease. Clin Pharmacol Drug Dev. 2023;12(9):888-901. doi:10.1002/cpdd.1303 6 Lahmy, V., Long, R., Morin, D., Villard, V., Maurice, T., 2014. Mitochondrial protection by the mixed muscarinic/sigma1 ligand ANAVEX2-73, a tetrahydrofuran derivative, in Aβ25-35 peptide-injected mice, a nontransgenic Alzheimer’s disease model. Front. Cell. Neurosci. 8, 463. https://doi-org.libproxy1.nus.edu.sg/10.3389/fncel.2014.00463 7 Arimon, M., Takeda, S., Post, K.L., Svirsky, S., Hyman, B.T., Berezovska, O., 2015. Oxidative stress and lipid peroxidation are upstream of amyloid pathology. Neurobiol. Dis. 84, 109–119. https://doi-org.libproxy1.nus.edu.sg/10.1016/j.nbd.2015.06.013 8 Christ MG, Clement AM, Behl C. The Sigma-1 Receptor at the Crossroad of Proteostasis, Neurodegeneration, and Autophagy. Trends Neurosci. 2020;43(2):79-81. doi:10.1016/j.tins.2019.12.002 9 Zhao LX, Chen MW, Qian Y, Yang QH, Ge YH, Chen HZ, Qiu Y. M1 Muscarinic Receptor Activation Rescues β-Amyloid-Induced Cognitive Impairment through AMPA Receptor GluA1 Subunit. Neuroscience. 2019 Jun 1;408:239-247. doi: 10.1016/j.neuroscience.2019.04.007. Epub 2019 Apr 11. PMID: 30981860 The content above comes from the network. if any infringement, please contact us to modify.