Cited by 144Neuroendocrine regulation and behaviorNeuropeptides and Animal PhysiologyTactile and Sensory Interactions

Social touch-like tactile stimulation activates a tachykinin 1-oxytocin pathway to promote social interactions

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Yu, Hang, Miao, Wanying, Ji, En, Huang, Shajin, Jin, Sen, Zhu, Xutao, Liu, Ming-Zhe, Sun, Yan-Gang +2 more·2022·Neuron

Abstract

It is well known that affective and pleasant touch promotes individual well-being and facilitates affiliative social communication, although the neural circuit that mediates this process is largely unknown. Here, we show that social-touch-like tactile stimulation (ST) enhances firing of oxytocin neurons in the mouse paraventricular hypothalamus (PVH) and promotes social interactions and positively reinforcing place preference. These results link pleasant somatosensory stimulation to increased social interactions and positive affective valence. We further show that tachykinin 1 (Tac1+) neurons in the lateral and ventrolateral periaqueductal gray (l/vlPAG) send monosynaptic excitatory projections to PVH oxytocin neurons. Functionally, activation of PVH-projecting Tac1+ neurons increases firing of oxytocin neurons, promotes social interactions, and increases preference for the social touch context, whereas reducing activity of Tac1+ neurons abolishes ST-induced oxytocin neuronal firing. Together, these results identify a dipeptidergic pathway from l/vlPAG Tac1+ neurons to PVH oxytocin neurons, through which pleasant sensory experience promotes social behavior.

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Crossref · 10.1016/j.neuron.2021.12.022

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  • Social touch leads to the release of oxytocin from the paraventricular nucleus and dopamine from the ventral tegmental area to the nucleus accumbens, resulting in conditioned place preference for social touch contexts.

    “Social touch also leads to the release of OT, from the PVN, and DA, from the VTA, to the NAc, resulting in conditioned place preference for social touch contexts and suggesting reinforcing properties of social tactile stimulation [95,96].”
  • In rats and mice, several regions provide input to paraventricular oxytocin-expressing cells, including brainstem, thalamic, hypothalamic, and cortical cell populations.

    “In rats and mice, several regions provide input to PVN OXT-expressing cells, including the brainstem, thalamic, hypothalamic, and cortical cell populations (56-58)”
  • In mice, social touch during early life increases both paraventricular oxytocin neuronal firing and social approach later in adulthood through interaction with substance P systems within the periaqueductal gray.

    “Similarly, in mice, social touch during early life increases both PVN OXT neuronal firing and social approach later in adulthood through interaction with substance P systems within the periaqueductal gray (58).”

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Authors
Yu, H., Miao, W., Ji, E., Huang, S., Jin, S., Zhu, X., Liu, M.-Z., Sun, Y.-G., Xu, F., & Yu, X.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Shenzhen Institutes of Advanced Technology (CN)
Corresponding author
Yu, Xiang
Venue
Neuron
Publisher
Elsevier BV
Published
2022-03
Volume
110
Issue
6
Pages
1051-1067.e7
ISSN
0896-6273 (ISSN-L)
OpenAlex
W4205166062
Cited by
144
References
125
Citations by year
2026: 25 · 2025: 42 · 2024: 29 · 2023: 26 · 2022: 22
FWCI
28.09
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (31530030, 31771158)
  • Shanghai Municipal Government
  • Chinese Academy of Sciences (XDB32000000)
  • People's Government of Guangdong Province (2019B030335001)
  • Science and Technology Commission of Shanghai Municipality (2018SHZDZX05)
  • State Key Laboratory of Membrane Biology
  • Special Project for Research and Development in Key areas of Guangdong Province
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
Keywords
social touch, tactile stimulation, oxytocin neurons, TAC1, paraventricular hypothalamus, periaqueductal gray, social interaction, positive reinforcement, place preference, social behavior, monosynaptic projection
MeSH terms
Social Interaction, Animals, Oxytocin, Touch, Tachykinins, Mice, Touch Perception

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