title: Impairment of social and emotional behaviors in Cadm1-knockout mice.
abstract: Cell adhesion molecule 1 (CADM1), a member of the immunoglobulin superfamily, mediates synaptic cell adhesion. Missense mutations in the CADM1 gene have been identified in autism spectrum disorder (ASD) patients. In the present study, we examined emotional behaviors, social behaviors and motor performances in Cadm1-knockout (KO) mice. Cadm1-KO mice showed increased anxiety-related behavior in open-field and light-dark transition tests. Social behaviors of Cadm1-KO mice were impaired in social interaction, resident-intruder and social memory/recognition tests. Furthermore, motor coordination and gait of Cadm1-KO mice were impaired in rotarod and footprint tests. Our study demonstrates that CADM1 plays roles in regulating emotional behaviors, social behaviors and motor performances, and that CADM1 has important implications for psychiatric disorders with disruptions in social behavior, such as autism.
authors.affiliation: Department of Physiology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi-ken 329-0498, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Takayanagi
authors.forename: Eriko
authors.initials: E
authors.lastname: Fujita
authors.forename: Zhiling
authors.initials: Z
authors.lastname: Yu
authors.forename: Takanori
authors.initials: T
authors.lastname: Yamagata
authors.forename: Mariko Y
authors.initials: MY
authors.lastname: Momoi
authors.forename: Takashi
authors.initials: T
authors.lastname: Momoi
authors.forename: Tatsushi
authors.initials: T
authors.lastname: Onaka
mesh_terms: D000818:Animals; D001007:Anxiety / Q000235:genetics*; D001321:Autistic Disorder / Q000235:genetics; D000075982:Cell Adhesion Molecule-1; D015815:Cell Adhesion Molecules; D004644:Emotions; D007136:Immunoglobulins / Q000235:genetics / Q000502:physiology*; D008565:Membrane Proteins / Q000235:genetics / Q000502:physiology*; D051379:Mice; D018345:Mice, Knockout; D009043:Motor Activity / Q000235:genetics; D012919:Social Behavior
chemical_list: C498598:Cadm1 protein, mouse; D000075982:Cell Adhesion Molecule-1; D015815:Cell Adhesion Molecules; D007136:Immunoglobulins; D008565:Membrane Proteins