中国神经再生研究(英文版) ›› 2024, Vol. 19 ›› Issue (on line): 1-13.

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How do lateral septum projections to the ventral CA1 influence sociability?

  

  • 出版日期:2024-01-01 发布日期:2023-11-07

Dan Wang1, 2, 3, 4, #, Di Zhao1, 2, 3, 4, #, Wentao Wang1, 2, 3, 4, Fengai Hu1, 2, 3, 4, Minghu Cui2, 3, 4, Jing Liu1, 2, 3, 4, Fantao Meng1, 2, 3, 4, Cuilan Liu1, 2, 3, 4, Changyun Qiu1, 2, 3, 4, Dunjiang Liu1, 2, 3, 4, Zhicheng Xu1, 2, 3, 4, Yameng Wang1, 2, 3, 4, Yu Zhang2, 5, *, Wei Li1, 2, 3, *, Chen Li1, 2, 3, 4, *#br#   

  1. 1Department of Rehabilitation Medicine, Binzhou Medical University Hospital, Binzhou, Shandong Province, China; 2Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong Province, China; 3Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong Province, China; 4Department of Psychology, Binzhou Medical University Hospital, Binzhou, Shandong Province, China; 5College of Nursing, Binzhou Medical University, Binzhou, Shandong Province, China
  • Online:2024-01-01 Published:2023-11-07
  • Contact: Chen Li, PhD, lc_0625@163.com; Wei Li, PhD, yishengliwei@163.com; Yu Zhang, PhD, zhangy0605@126.com.
  • Supported by:
    This study was supported by the National Natural Science Foundation of China, No. 82171521 (to CL); the Special Funds of Taishan Scholars Project of Shandong Province, No. tsqn202211368 (to CL); the Natural Science Foundation of Shandong Province, Nos. ZR2022YQ65 (to CL), ZR2021MH073 (to CL), and ZR2019PH109 (to WTW); the Projects of Medical and Health Technology Development Program in Shandong Province, China, Nos. 202003090720 (to DZ), 202003070728 (to JL), and 2019WS329 (to DW), and the Scientific Research Foundation of Binzhou Medical University, No. BY2018KJ21 (to DW).

摘要: https://orcid.org/0000-0001-5385-6249 (Chen Li); https://orcid.org/0000-0002-6378-7723 (Wei Li); https://orcid.org/0000-0002-9959-005X (Yu Zhang)

Abstract: Social dysfunction is a risk factor for several neuropsychiatric illnesses. Previous studies have shown that the lateral septum (LS)-related pathway plays a critical role in mediating social behaviors. However, the role of the connections between the LS and its downstream brain regions in social behaviors remains unclear. In this study, we conducted a three-chamber test using electrophysiological and chemogenetic approaches in mice to determine how LS projections to ventral CA1 (vCA1) influence sociability. Our results showed that gamma-aminobutyric acid (GABA)-ergic neurons were activated following social experience, and that social behaviors were enhanced by chemogenetic modulation of these neurons. Moreover, LS GABAergic neurons extended their functional neural connections via vCA1 glutamatergic pyramidal neurons, and regulating LSGABA→vCA1Glu neural projections affected social behaviors, which were impeded by suppressing LS-projecting vCA1 neuronal activity or inhibiting GABAA receptors in vCA1. These findings support the hypothesis that LS inputs to the vCA1 can control social preferences and social novelty behaviors. These findings provide new insights regarding the neural circuits that regulate sociability.

Key words: chemogenetics, GABA receptor, GABAergic neurons, glutamatergic neurons, lateral septum, neural excitability, neural projection, social novelty, social preference, ventral CA1