Median raphe serotonergic neurons projecting to the interpeduncular nucleus control preference and aversion

Hiroyuki Kawai, Youcef Bouchekioua, Naoya Nishitani, Kazuhei Niitani, Shoma Izumi, Hinako Morishita, Chihiro Andoh, Yuma Nagai, Masashi Koda, Masako Hagiwara, Koji Toda, Hisashi Shirakawa, Kazuki Nagayasu, Yu Ohmura, Makoto Kondo, Katsuyuki Kaneda, Mitsuhiro Yoshioka, Shuji Kaneko

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Appropriate processing of reward and aversive information is essential for survival. Although a critical role of serotonergic neurons in the dorsal raphe nucleus (DRN) in reward processing has been shown, the lack of rewarding effects with selective serotonin reuptake inhibitors (SSRIs) implies the presence of a discrete serotonergic system playing an opposite role to the DRN in the processing of reward and aversive stimuli. Here, we demonstrated that serotonergic neurons in the median raphe nucleus (MRN) of mice process reward and aversive information in opposite directions to DRN serotonergic neurons. We further identified MRN serotonergic neurons, including those projecting to the interpeduncular nucleus (5-HTMRN→IPN), as a key mediator of reward and aversive stimuli. Moreover, 5-HT receptors, including 5-HT2A receptors in the interpeduncular nucleus, are involved in the aversive properties of MRN serotonergic neural activity. Our findings revealed an essential function of MRN serotonergic neurons, including 5-HTMRN→IPN, in the processing of reward and aversive stimuli.

本文言語English
論文番号7708
ジャーナルNature communications
13
1
DOI
出版ステータスPublished - 2022 12月

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 化学 (全般)
  • 生化学、遺伝学、分子生物学(全般)

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