The unique expression profile of FAM19A1 in the mouse brain and its association with hyperactivity, long-term memory and fear acquisition

Hyo Jeong Yong, Nui Ha, Eun Bee Cho, Seongsik Yun, Hyun Kim, Jong Ik Hwang, Jae Young Seong

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    Neurodevelopment and mature brain function are spatiotemporally regulated by various cytokines and chemokines. The chemokine-like neuropeptide FAM19A1 is a member of family with sequence similarity 19 (FAM19), which is predominantly expressed in the brain. Its highly conserved amino acid sequence among vertebrates suggests that FAM19A1 may play important physiological roles in neurodevelopment and brain function. Here we used a LacZ reporter gene system to map the expression pattern of the FAM19A1 gene in the mouse brain. The FAM19A1 expression was observed in several brain regions starting during embryonic brain development. As the brain matured, the FAM19A1 expression was detected in the pyramidal cells of cortical layers 2/3 and 5 and in several limbic areas, including the hippocampus and the amygdala. FAM19A1-deficient mice were used to evaluate the physiological contribution of FAM19A1 to various brain functions. In behavior analysis, FAM19A1-deficient mice exhibited several abnormal behaviors, including hyperactive locomotor behavior, long-term memory deficits and fear acquisition failure. These findings provide insight into the potential contributions of FAM19A1 to neurodevelopment and mature brain function.

    Original languageEnglish
    Article number3969
    JournalScientific reports
    Volume10
    Issue number1
    DOIs
    Publication statusPublished - 2020 Dec 1

    Bibliographical note

    Funding Information:
    This work was supported by a grant from the Research Program of the National Research Foundation of Korea (NRF-2016R1A2B1010036), which is funded by the Ministry of Science, ICT, and Future Planning. This work involves a U.S. patent (62/748,864) held by Neuracle Science Co. Ltd.

    Publisher Copyright:
    © 2020, The Author(s).

    ASJC Scopus subject areas

    • General

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