Suppr超能文献

不同的隔海马胆碱能投射分别介导应激引起的情绪和认知缺陷。

Distinct septo-hippocampal cholinergic projections separately mediate stress-induced emotional and cognitive deficits.

机构信息

State Key Laboratory of Organ Failure Research, Key Laboratory of Mental Health of the Ministry of Education, Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong Joint Laboratory for Psychiatric Disorders, Guangdong Provincial Key Laboratory of Psychiatric Disorders, Guangdong Basic Research Center of Excellence for Integrated Traditional and Western Medicine for Qingzhi Diseases, Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.

出版信息

Sci Adv. 2024 Nov 8;10(45):eado1508. doi: 10.1126/sciadv.ado1508.

Abstract

Patients suffering from chronic stress develop numerous symptoms, including emotional and cognitive deficits. The precise circuit mechanisms underlying different symptoms remain poorly understood. We identified two distinct basal forebrain cholinergic subpopulations in mice projecting to the dorsal hippocampus (dHPC) or ventral hippocampus (vHPC), which exhibited distinct input organizations, electrophysiological characteristics, transcriptomics, and responses to positive and negative valences of stimuli and were critical for cognitive and emotional modulation, respectively. Moreover, chronic stress induced elevated anxiety levels and cognitive deficits in mice, accompanied by enhanced vHPC but suppressed dHPC cholinergic projections. Chemogenetic activation of dHPC or inhibition of vHPC cholinergic projections alleviated stress-induced aberrant behaviors. Furthermore, we identified that the acetylcholinesterase inhibitor donepezil combined with blockade of muscarinic receptor 1-type muscarinic acetylcholine receptors in the vHPC rescued both stress-induced phenotypes. These data illuminated distinct septo-hippocampal cholinergic circuits mediated specific symptoms independently under stress, which may provide promising strategies for circuit-based treating of stress-related psychiatric disorders.

摘要

慢性应激的患者会出现多种症状,包括情绪和认知障碍。不同症状的精确电路机制仍知之甚少。我们在小鼠中鉴定出两个投射到背侧海马体(dHPC)或腹侧海马体(vHPC)的不同基底前脑胆碱能亚群,它们表现出不同的输入组织、电生理特征、转录组学以及对刺激的正负效价的反应,分别对认知和情绪调节至关重要。此外,慢性应激导致小鼠焦虑水平升高和认知缺陷,伴随着 vHPC 胆碱能投射增强而 dHPC 胆碱能投射抑制。dHPC 的化学遗传激活或 vHPC 胆碱能投射的抑制缓解了应激引起的异常行为。此外,我们发现乙酰胆碱酯酶抑制剂多奈哌齐与 vHPC 中的毒蕈碱受体 1 型毒蕈碱乙酰胆碱受体阻断联合使用可挽救应激引起的表型。这些数据阐明了在应激下独立介导特定症状的不同隔海马胆碱能回路,这可能为基于回路的治疗应激相关精神障碍提供有希望的策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8103/11546849/f3492ead7d59/sciadv.ado1508-f1.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验