Inducing Partner Preference in Mice by Chemogenetic Stimulation of CA2 Hippocampal Subfield.
PVN
chemogenetic
dCA2
mice
partner preference
Journal
Frontiers in molecular neuroscience
ISSN: 1662-5099
Titre abrégé: Front Mol Neurosci
Pays: Switzerland
ID NLM: 101477914
Informations de publication
Date de publication:
2020
2020
Historique:
received:
10
01
2020
accepted:
31
03
2020
entrez:
12
5
2020
pubmed:
12
5
2020
medline:
12
5
2020
Statut:
epublish
Résumé
Social recognition is fundamental for social decision making and the establishment of long-lasting affiliative behaviors in behaviorally complex social groups. It is a critical step in establishing a selective preference for a social partner or group member. C57BL/6J lab mice do not form monogamous relationships, and typically do not show prolonged social preferences for familiar mice. The CA2 hippocampal subfield plays a crucial role in social memory and optogenetic stimulation of inputs to the dorsal CA2 field during a short memory acquisition period can enhance and extend social memories in mice. Here, we show that partner preference in mice can be induced by chemogenetic selective stimulation of the monosynaptic projections from the hypothalamic paraventricular nucleus (PVN) to the CA2 during the cohabitation period. Specifically, male mice spend more time in social contact, grooming and huddling with the partner compared to a novel female. Preference was not induced by prolonging the cohabitation period and allowing more time for social interactions and males to sire pups with the familiar female. These results suggest that PVN-to-CA2 projections are part of an evolutionarily conserved neural circuitry underlying the formation of social preference and may promote behavioral changes with appropriate stimulation.
Identifiants
pubmed: 32390799
doi: 10.3389/fnmol.2020.00061
pmc: PMC7192236
doi:
Types de publication
Journal Article
Langues
eng
Pagination
61Informations de copyright
Copyright © 2020 Cymerblit-Sabba, Smith, Williams Avram, Stackmann, Korgan, Tickerhoof and Young.
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