Urocortin-3 neurons in the mouse perifornical area promote infant-directed neglect and aggression

Anita E. Autry, Zheng Wu, Vikrant Kapoor, Johannes Kohl, Dhananjay Bambah-Mukku, Nimrod D. Rubinstein, Brenda Marin-Rodriguez, Ilaria Carta, Victoria Sedwick, Ming Tang, Catherine Dulac

Research output: Contribution to journalArticlepeer-review

Abstract

While recent studies have uncovered dedicated neural pathways mediating the positive control of parenting, the regulation of infant-directed aggression and how it relates to adult-adult aggression is poorly understood. Here we show that urocortin-3 (Ucn3)-expressing neurons in the hypothalamic perifornical area (PeFAUcn3) are activated during infant-directed attacks in males and females, but not other behaviors. Functional manipulations of PeFAUcn3 neurons demonstrate the role of this population in the negative control of parenting in both sexes. PeFAUcn3 neurons receive input from areas associated with vomeronasal sensing, stress, and parenting, and send projections to hypothalamic and limbic areas. Optogenetic activation of PeFAUcn3 axon terminals in these regions triggers various aspects of infant-directed agonistic responses, such as neglect, repulsion and aggression. Thus, PeFAUcn3 neurons emerge as a dedicated circuit component controlling infant-directed neglect and aggression, providing a new framework to understand the positive and negative regulation of parenting in health and disease.

Original languageEnglish (US)
Article numbere64680
JournaleLife
Volume10
DOIs
StatePublished - Aug 2021

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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