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Postnatal expression of CD38 in astrocytes regulates synapse formation and adult social memory

ABSTRACT: To investigate effect of CD38 knockout on gene expression in astrocytes, we performed RNA-seq of WT and CD38 KO primary astrocytes.

ORGANISM(S): Mus musculus

PROVIDER: GSE216887 | GEO | 2023/05/17

REPOSITORIES: GEO

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Postnatal expression of CD38 in astrocytes regulates synapse formation and adult social memory

Project description:Postnatal expression of CD38 in astrocytes regulates synapse formation and adult social memory

| PRJNA896112 | ENA

Postnatal expression of CD38 in astrocytes regulates synapse formation and adult social memory.

Project description:Social behavior is essential for health, survival, and reproduction of animals; however, the role of astrocytes in social behavior remains largely unknown. The transmembrane protein CD38, which acts both as a receptor and ADP-ribosyl cyclase to produce cyclic ADP-ribose (cADPR) regulates social behaviors by promoting oxytocin release from hypothalamic neurons. CD38 is also abundantly expressed in astrocytes in the postnatal brain and is important for astroglial development. Here, we demonstrate that the astroglial-expressed CD38 plays an important role in social behavior during development. Selective deletion of CD38 in postnatal astrocytes, but not in adult astrocytes, impairs social memory without any other behavioral abnormalities. Morphological analysis shows that depletion of astroglial CD38 in the postnatal brain interferes with synapse formation in the medial prefrontal cortex (mPFC) and hippocampus. Moreover, astroglial CD38 expression promotes synaptogenesis of excitatory neurons by increasing the level of extracellular SPARCL1 (also known as Hevin), a synaptogenic protein. The release of SPARCL1 from astrocytes is regulated by CD38/cADPR/calcium signaling. These data demonstrate a novel developmental role of astrocytes in neural circuit formation and regulation of social behavior in adults.

| S-EPMC10390870 | biostudies-literature

Postnatal expression of CD38 in astrocytes regulates synapse formation and adult social memory

Project description:Social behavior is essential for health, survival, and reproduction of animals; however, the role of astrocytes in social behavior remains largely unknown. The transmembrane protein CD38, which acts both as a receptor and ADP-ribosyl cyclase to produce cyclic ADP-ribose (cADPR) regulates social behaviors by promoting oxytocin release from hypothalamic neurons. CD38 is also abundantly expressed in astrocytes in the postnatal brain and is important for astroglial development. Here, we demonstrate that astroglial-expressed CD38 plays an important role in social behavior during development. Selective deletion of CD38 in postnatal astrocytes, but not in adult astrocytes, impairs social memory without any other behavioral abnormalities. Morphological analysis shows that depletion of astroglial CD38 in the postnatal brain interferes with synapse formation in the medial prefrontal cortex (mPFC) and hippocampus. Moreover, astroglial CD38 expression promotes synaptogenesis of excitatory neurons by increasing the level of extracellular SPARCL1 (also known as Hevin), a synaptogenic protein. The release of SPARCL1 from astrocytes is regulated by CD38/cADPR/calcium signaling. This data demonstrates a novel developmental role of astrocytes in neural circuit formation and regulation of social behavior in adults.

| S-SCDT-10_15252-EMBJ_2022111247 | biostudies-other

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