ACS Chemical Neuroscience最新文献

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Propionate Decreases Microglial Activation but Impairs Phagocytic Capacity in Response to Aggregated Fibrillar Amyloid Beta Protein. 丙酸盐能降低小胶质细胞的活化,但会损害其对聚集的纤维状淀粉样β蛋白的吞噬能力
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-11 DOI: 10.1021/acschemneuro.4c00370
Andrew Gold, Sarah Kaye, Jie Gao, Jiangjiang Zhu
{"title":"Propionate Decreases Microglial Activation but Impairs Phagocytic Capacity in Response to Aggregated Fibrillar Amyloid Beta Protein.","authors":"Andrew Gold, Sarah Kaye, Jie Gao, Jiangjiang Zhu","doi":"10.1021/acschemneuro.4c00370","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00370","url":null,"abstract":"<p><p>Microglia, the innate immune cell of the brain, are a principal player in Alzheimer's disease (AD) pathogenesis. Their surveillance of the brain leads to interaction with the protein aggregates that drive AD pathogenesis, most notably Amyloid Beta (Aβ). Microglia attempt to clear and degrade Aβ using phagocytic machinery, spurring damaging neuroinflammation in the process. Thus, modulation of the microglial response to Aβ is crucial in mitigating AD pathophysiology. SCFAs, microbial byproducts of dietary fiber fermentation, are blood-brain barrier permeable molecules that have recently been shown to modulate microglial function. It is unclear whether propionate, one representative SCFA, has beneficial or detrimental effects on microglia in AD. Thus, we investigated its impact on microglial Aβ response in vitro. Using a multiomics approach, we characterized the transcriptomic, metabolomic, and lipidomic responses of immortalized murine microglia following 1 h of Aβ stimulation, as well as characterizing Aβ phagocytosis and secretion of reactive nitrogen species. Propionate blunted the early inflammatory response driven by Aβ, downregulating the expression of many Aβ-stimulated immune genes, including those regulating inflammation, the immune complement system, and chemotaxis. Further, it reduced the expression of <i>Apoe</i> and inflammation-promoting Aβ-binding scavenger receptors such as <i>Cd36</i> and <i>Msr1</i> in favor of inflammation-dampening <i>Lpl</i>, although this led to impaired phagocytosis. Finally, propionate shifted microglial metabolism, altering phospholipid composition and diverting arginine metabolism, resulting in decreased nitric oxide production. Altogether, our data demonstrate a modulatory role of propionate on microglia that may dampen immune activation in response to Aβ, although at the expense of phagocytic capacity.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Alzheimer's Disease: Exploring the Landscape of Cognitive Decline. 阿尔茨海默病:探索认知衰退的全貌。
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-11 DOI: 10.1021/acschemneuro.4c00339
Rumiana Tenchov, Janet M Sasso, Qiongqiong Angela Zhou
{"title":"Alzheimer's Disease: Exploring the Landscape of Cognitive Decline.","authors":"Rumiana Tenchov, Janet M Sasso, Qiongqiong Angela Zhou","doi":"10.1021/acschemneuro.4c00339","DOIUrl":"10.1021/acschemneuro.4c00339","url":null,"abstract":"<p><p>Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by cognitive decline, memory loss, and impaired daily functioning. The pathology of AD is marked by the accumulation of amyloid beta plaques and tau protein tangles in the brain, along with neuroinflammation and synaptic dysfunction. Genetic factors, such as mutations in APP, PSEN1, and PSEN2 genes, as well as the APOE ε4 allele, contribute to increased risk of acquiring AD. Currently available treatments provide symptomatic relief but do not halt disease progression. Research efforts are focused on developing disease-modifying therapies that target the underlying pathological mechanisms of AD. Advances in identification and validation of reliable biomarkers for AD hold great promise for enhancing early diagnosis, monitoring disease progression, and assessing treatment response in clinical practice in effort to alleviate the burden of this devastating disease. In this paper, we analyze data from the CAS Content Collection to summarize the research progress in Alzheimer's disease. We examine the publication landscape in effort to provide insights into current knowledge advances and developments. We also review the most discussed and emerging concepts and assess the strategies to combat the disease. We explore the genetic risk factors, pharmacological targets, and comorbid diseases. Finally, we inspect clinical applications of products against AD with their development pipelines and efforts for drug repurposing. The objective of this review is to provide a broad overview of the evolving landscape of current knowledge regarding AD, to outline challenges, and to evaluate growth opportunities to further efforts in combating the disease.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142398649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interactions of Polychlorinated Biphenyls and Their Metabolites with the Brain and Liver Transcriptome of Female Mice. 多氯联苯及其代谢物与雌性小鼠大脑和肝脏转录组的相互作用
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-11 DOI: 10.1021/acschemneuro.4c00367
Amanda J Bullert, Hui Wang, Anthony E Valenzuela, Kari Neier, Rebecca J Wilson, Jessie R Badley, Janine M LaSalle, Xin Hu, Pamela J Lein, Hans-Joachim Lehmler
{"title":"Interactions of Polychlorinated Biphenyls and Their Metabolites with the Brain and Liver Transcriptome of Female Mice.","authors":"Amanda J Bullert, Hui Wang, Anthony E Valenzuela, Kari Neier, Rebecca J Wilson, Jessie R Badley, Janine M LaSalle, Xin Hu, Pamela J Lein, Hans-Joachim Lehmler","doi":"10.1021/acschemneuro.4c00367","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00367","url":null,"abstract":"<p><p>Exposure to polychlorinated biphenyls (PCBs) is linked to neurotoxic effects. This study aims to close knowledge gaps regarding the specific modes of action of PCBs in female C57BL/6J mice (>6 weeks) orally exposed for 7 weeks to a human-relevant PCB mixture (MARBLES mix) at 0, 0.1, 1, and 6 mg/kg body weight/day. PCB and hydroxylated PCB (OH-PCBs) levels were quantified in the brain, liver, and serum; RNA sequencing was performed in the striatum, prefrontal cortex, and liver, and metabolomic analyses were performed in the striatum. Profiles of PCBs but not their hydroxylated metabolites were similar in all tissues. In the prefrontal cortex, PCB exposure activated the oxidative phosphorylation respiration pathways, while suppressing the axon guidance pathway. PCB exposure significantly changed the expression of genes associated with neurodevelopmental and neurodegenerative diseases in the striatum, impacting pathways like growth hormone synthesis and dendrite development. PCBs did not affect the striatal metabolome. In contrast to the liver, which showed activation of metabolic processes following PCB exposure and the induction of cytochrome P450 enzymes, the expression of xenobiotic processing genes was not altered by PCB exposure in either brain region. Network analysis revealed complex interactions between individual PCBs (e.g., PCB28 [2,4,4'-trichlorobiphenyl]) and their hydroxylated metabolites and specific differentially expressed genes (DEGs), underscoring the need to characterize the association between specific PCBs and DEGs. These findings enhance the understanding of PCB neurotoxic mechanisms and their potential implications for human health.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comment on "Extracellular Vesicles Slow Down Aβ(1-42) Aggregation by Interfering with the Amyloid Fibril Elongation Step". 关于 "细胞外小泡通过干扰淀粉样蛋白纤维伸长步骤减缓 Aβ(1-42)聚集 "的评论
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-09 DOI: 10.1021/acschemneuro.4c00601
Mohsin Shafiq, Andreu Matamoros-Angles, Sussane Caroline Meister, Markus Glatzel
{"title":"Comment on \"Extracellular Vesicles Slow Down Aβ(1-42) Aggregation by Interfering with the Amyloid Fibril Elongation Step\".","authors":"Mohsin Shafiq, Andreu Matamoros-Angles, Sussane Caroline Meister, Markus Glatzel","doi":"10.1021/acschemneuro.4c00601","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00601","url":null,"abstract":"<p><p>Halipi et al. explored the impact of extracellular vesicles (EVs) on amyloid-β (Aβ) aggregation. They concluded that EVs reduce Aβ aggregation, as seen by shorter and thicker fibrils. While we agree with the complex role of EVs in Alzheimer's disease, we are sceptical of the claim that EVs slow down Aβ aggregation, noting missing key references. Previous literature rather suggests that EVs (derived from neuronal cell lines) accelerate the process of Aβ fibrillation and plaque formation. Halipi et al.'s findings may be skewed due to the lack of essential neuronally expressed Aβ-binding partners, like the prion protein (PrP<sup>C</sup>) in their EV samples. The commentary, in the light of included original experiments and cited literature, suggests that membrane proteins like PrP<sup>C</sup> are crucial to fully understand the role of EVs in Aβ aggregation, and Halipi et al.'s conclusions should be reexamined in light of these factors.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142386350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Classics in Chemical Neuroscience: Tianeptine. 化学神经科学经典:天奈普汀
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-09 DOI: 10.1021/acschemneuro.4c00519
Yu Nishio, Craig W Lindsley, Aaron M Bender
{"title":"Classics in Chemical Neuroscience: Tianeptine.","authors":"Yu Nishio, Craig W Lindsley, Aaron M Bender","doi":"10.1021/acschemneuro.4c00519","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00519","url":null,"abstract":"<p><p>Tianeptine (<b>1</b>) is an unusual antidepressant in that its mechanism of action appears to be independent from any activity at serotonin receptors or monoamine transporters. In fact, tianeptine has been shown to be a moderately potent agonist for the mu opioid receptor (MOR) and to a lesser extent the delta opioid receptor (DOR). Additionally, tianeptine's efficacy may be related to its action on glutamate-mediated pathways of neuroplasticity. Regardless of which neurotransmitter system is primarily responsible for the observed efficacy, the MOR agonist activity is problematic with respect to abuse liability. Increasing numbers of case reports have demonstrated that tianeptine is indeed being used recreationally at doses far beyond what are considered therapeutically relevant or safe, and scheduling reclassifications or outright bans on tianeptine products are ongoing around the world. It is the aim of this review to discuss the medicinal chemistry and pharmacology of tianeptine and to summarize this intriguing discrepancy between tianeptine's historical use as a safe and effective antidepressant and its emerging potential for abuse.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142386349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of Tetrahydroquinoline-Based Inhibitors for Chronic Pain 开发治疗慢性疼痛的四氢喹啉抑制剂
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-08 DOI: 10.1021/acschemneuro.4c0031610.1021/acschemneuro.4c00316
Ketul V. Patel, Vinicius M. Gadotti, Agustin Garcia-Caballero, Flavia T. T. Antunes, Md Yousof Ali, Gerald W. Zamponi* and Darren J. Derksen*, 
{"title":"Development of Tetrahydroquinoline-Based Inhibitors for Chronic Pain","authors":"Ketul V. Patel,&nbsp;Vinicius M. Gadotti,&nbsp;Agustin Garcia-Caballero,&nbsp;Flavia T. T. Antunes,&nbsp;Md Yousof Ali,&nbsp;Gerald W. Zamponi* and Darren J. Derksen*,&nbsp;","doi":"10.1021/acschemneuro.4c0031610.1021/acschemneuro.4c00316","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00316https://doi.org/10.1021/acschemneuro.4c00316","url":null,"abstract":"<p >Chronic pain affects a substantial portion of the population, posing a significant health challenge. Current treatments often come with limitations and side effects, necessitating novel therapeutic approaches. Our study focuses on disrupting the Cav3.2-USP5 interaction as a strategy for chronic pain management. Through structure–activity relationship studies of a tetrahydroquinoline (THQ) scaffold, we identified a family of lead molecules that demonstrated potent inhibition of the Cav3.2-USP5 interaction. In vitro pharmacokinetic assessments and in vivo studies support the efficacy and drug-like properties of the lead compounds in mouse models of acute and chronic pain. Dependence on the Cav3.2 channels was validated in Cav3.2 null mice, consistent with the proposed mode of action of these small molecules. These findings provide a novel chronic pain treatment strategy, highlighting the potential of these small molecules for further development.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142437115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcriptome-Wide Profiling of Nascent RNA in Neurons with Enriched H3K27ac Signal Elevates eRNA Identification Efficiency. 具有丰富 H3K27ac 信号的神经元中新生 RNA 的转录组全谱分析提高了 eRNA 的鉴定效率。
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-08 DOI: 10.1021/acschemneuro.4c00047
Jiazhi Jiang, Sha Liu, Ziyue Xu, Shuangqi Yu, Lesheng Wang, Shengrong Long, Shengda Ye, Yu Yan, Hongyu Xu, Jianjian Zhang, Wei Wei, Qiongyi Zhao, Xiang Li
{"title":"Transcriptome-Wide Profiling of Nascent RNA in Neurons with Enriched H3K27ac Signal Elevates eRNA Identification Efficiency.","authors":"Jiazhi Jiang, Sha Liu, Ziyue Xu, Shuangqi Yu, Lesheng Wang, Shengrong Long, Shengda Ye, Yu Yan, Hongyu Xu, Jianjian Zhang, Wei Wei, Qiongyi Zhao, Xiang Li","doi":"10.1021/acschemneuro.4c00047","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00047","url":null,"abstract":"<p><p>Growing evidence suggests that activity-dependent gene expression is crucial for neuronal plasticity and behavioral experience. Enhancer RNAs (eRNAs), a class of long noncoding RNAs, play a key role in these processes. However, eRNAs are highly dynamic and are often present at lower levels than their corresponding mRNAs, making them difficult to detect using total RNA-seq techniques. Nascent RNA sequencing, which separates nascent RNAs from the steady-state RNA population, has been shown to increase the ability to detect activity-induced eRNAs with a higher signal-to-noise ratio. However, there is a lack of bioinformatic tools or pipelines for detecting eRNAs utilizing nascent RNA-seq and other multiomics data sets. In this study, we addressed this gap by developing a novel bioinformatic framework, e-finder, for finding eRNAs and have made it available to the scientific community. Additionally, we reanalyzed our previous nascent RNA sequencing data and compared them with total RNA-seq data to identify activity-regulated RNAs in neuronal cell populations. Using H3K27 acetylome data, we characterized activity-dependent eRNAs that drive the transcriptional activity of the target genes. Our analysis identified a subset of eRNAs involved in mediating synapse organization, which showed increased activity-dependent transcription after the potassium chloride stimulation. Notably, our data suggest that nascent RNA-seq with an enriched H3K27ac signal exhibits high resolution to identify potential eRNAs in response to membrane depolarization. Our findings uncover the role of the eRNA-mediated gene activation network in neuronal systems, providing new insights into the molecular processes characterizing neurological diseases.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142386353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mannose-Functionalized Chitosan-Coated PLGA Nanoparticles for Brain-Targeted Codelivery of CBD and BDNF for the Treatment of Alzheimer's Disease. 甘露聚糖功能化壳聚糖包覆聚乳酸(PLGA)纳米颗粒用于脑靶向重塑输送 CBD 和 BDNF 以治疗阿尔茨海默氏症
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-08 DOI: 10.1021/acschemneuro.4c00392
Arun Kumar Mahanta, Bivek Chaulagain, Riddhi Trivedi, Jagdish Singh
{"title":"Mannose-Functionalized Chitosan-Coated PLGA Nanoparticles for Brain-Targeted Codelivery of CBD and BDNF for the Treatment of Alzheimer's Disease.","authors":"Arun Kumar Mahanta, Bivek Chaulagain, Riddhi Trivedi, Jagdish Singh","doi":"10.1021/acschemneuro.4c00392","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00392","url":null,"abstract":"<p><p>Alzheimer's disease (AD) is a common neurodegenerative disease causing cognitive and memory decline. AD is characterized by the deposition of amyloid-β and hypophosphorylated forms of tau protein. AD brains are found to be associated with neurodegeneration, oxidative stress, and inflammation. Cannabidiol (CBD) shows neuroprotective, antioxidant, and anti-inflammatory properties and simultaneously reduces amyloid-β production and tau hyperphosphorylation. The brain-derived neurotrophic factor (BDNF) plays a vital role in the development and maintenance of the plasticity of the central nervous system. A decline of BDNF levels in AD patients results in reduced plasticity and neuronal cell death. Current therapeutics against AD are limited to only symptomatic relief, necessitating a therapeutic strategy that reverses cognitive decline. In this scenario, combination therapy of CBD and BDNF could be a fruitful strategy for the treatment of AD. We designed mannose-conjugated chitosan-coated poly(d,l-lactide-<i>co</i>-glycolide (PLGA) (CHTMAN-PLGA) nanoparticles for the codelivery of CBD and BDNF to the brain. Chitosan is modified with mannose to specifically target the glucose transporter-1 (GLUT-1) receptor abundantly present in the blood-brain barrier for selectively delivering therapeutics to the brain. The CBD-encapsulated nanoparticles showed an average hydrodynamic diameter of 306 ± 8.12 nm and a zeta potential of 31.7 ± 1.53 mV. The coated nanoparticles prolonged encapsulated CBD release from the PLGA matrix. The coated nanoparticles exhibited sustained release of CBD for up to 22 days with 91.68 ± 2.91% release of the encapsulated drug. The coated nanoparticles, which had a high positive zeta potential (31.7 ± 1.53 mV), encapsulated the plasmid DNA. The qualitative transfection efficiency was investigated using CHTMAN-PLGA-CBD/pGFP in bEND.3, primary astrocytes, and primary neurons, while the quantitative transfection efficiency of the delivery system was determined using CHTMAN-PLGA-CBD/pBDNF. In vitro, the pBDNF transfection study revealed that the BDNF expression was 4-fold higher for CHTMAN-PLGA-CBD/pBDNF than for naked pBDNF in all of the cell lines. The cytotoxicity and hemocompatibility of the designed nanoparticles were tested in bEND.3 cells and red blood cells, respectively, and the nanoparticles were found to be nontoxic and hemocompatible. Hence, mannose-conjugated chitosan-coated PLGA nanoparticles could be useful as brain-targeting delivery vehicles for the codelivery of CBD and BDNF for possible AD treatment.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142386352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of Tetrahydroquinoline-Based Inhibitors for Chronic Pain. 开发治疗慢性疼痛的四氢喹啉抑制剂。
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-08 DOI: 10.1021/acschemneuro.4c00316
Ketul V Patel, Vinicius M Gadotti, Agustin Garcia-Caballero, Flavia T T Antunes, Md Yousof Ali, Gerald W Zamponi, Darren J Derksen
{"title":"Development of Tetrahydroquinoline-Based Inhibitors for Chronic Pain.","authors":"Ketul V Patel, Vinicius M Gadotti, Agustin Garcia-Caballero, Flavia T T Antunes, Md Yousof Ali, Gerald W Zamponi, Darren J Derksen","doi":"10.1021/acschemneuro.4c00316","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00316","url":null,"abstract":"<p><p>Chronic pain affects a substantial portion of the population, posing a significant health challenge. Current treatments often come with limitations and side effects, necessitating novel therapeutic approaches. Our study focuses on disrupting the Cav3.2-USP5 interaction as a strategy for chronic pain management. Through structure-activity relationship studies of a tetrahydroquinoline (THQ) scaffold, we identified a family of lead molecules that demonstrated potent inhibition of the Cav3.2-USP5 interaction. In vitro pharmacokinetic assessments and in vivo studies support the efficacy and drug-like properties of the lead compounds in mouse models of acute and chronic pain. Dependence on the Cav3.2 channels was validated in Cav3.2 null mice, consistent with the proposed mode of action of these small molecules. These findings provide a novel chronic pain treatment strategy, highlighting the potential of these small molecules for further development.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142386351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcriptome-Wide Profiling of Nascent RNA in Neurons with Enriched H3K27ac Signal Elevates eRNA Identification Efficiency 具有丰富 H3K27ac 信号的神经元中新生 RNA 的转录组全谱分析提高了 eRNA 的鉴定效率
IF 4.1 3区 医学
ACS Chemical Neuroscience Pub Date : 2024-10-08 DOI: 10.1021/acschemneuro.4c0004710.1021/acschemneuro.4c00047
Jiazhi Jiang, Sha Liu, Ziyue Xu, Shuangqi Yu, Lesheng Wang, Shengrong Long, Shengda Ye, Yu Yan, Hongyu Xu, Jianjian Zhang, Wei Wei*, Qiongyi Zhao* and Xiang Li*, 
{"title":"Transcriptome-Wide Profiling of Nascent RNA in Neurons with Enriched H3K27ac Signal Elevates eRNA Identification Efficiency","authors":"Jiazhi Jiang,&nbsp;Sha Liu,&nbsp;Ziyue Xu,&nbsp;Shuangqi Yu,&nbsp;Lesheng Wang,&nbsp;Shengrong Long,&nbsp;Shengda Ye,&nbsp;Yu Yan,&nbsp;Hongyu Xu,&nbsp;Jianjian Zhang,&nbsp;Wei Wei*,&nbsp;Qiongyi Zhao* and Xiang Li*,&nbsp;","doi":"10.1021/acschemneuro.4c0004710.1021/acschemneuro.4c00047","DOIUrl":"https://doi.org/10.1021/acschemneuro.4c00047https://doi.org/10.1021/acschemneuro.4c00047","url":null,"abstract":"<p >Growing evidence suggests that activity-dependent gene expression is crucial for neuronal plasticity and behavioral experience. Enhancer RNAs (eRNAs), a class of long noncoding RNAs, play a key role in these processes. However, eRNAs are highly dynamic and are often present at lower levels than their corresponding mRNAs, making them difficult to detect using total RNA-seq techniques. Nascent RNA sequencing, which separates nascent RNAs from the steady-state RNA population, has been shown to increase the ability to detect activity-induced eRNAs with a higher signal-to-noise ratio. However, there is a lack of bioinformatic tools or pipelines for detecting eRNAs utilizing nascent RNA-seq and other multiomics data sets. In this study, we addressed this gap by developing a novel bioinformatic framework, e-finder, for finding eRNAs and have made it available to the scientific community. Additionally, we reanalyzed our previous nascent RNA sequencing data and compared them with total RNA-seq data to identify activity-regulated RNAs in neuronal cell populations. Using H3K27 acetylome data, we characterized activity-dependent eRNAs that drive the transcriptional activity of the target genes. Our analysis identified a subset of eRNAs involved in mediating synapse organization, which showed increased activity-dependent transcription after the potassium chloride stimulation. Notably, our data suggest that nascent RNA-seq with an enriched H3K27ac signal exhibits high resolution to identify potential eRNAs in response to membrane depolarization. Our findings uncover the role of the eRNA-mediated gene activation network in neuronal systems, providing new insights into the molecular processes characterizing neurological diseases.</p>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acschemneuro.4c00047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142437105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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