CD51 marks functionally distinct astrocyte subtypes in neural circuits
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Researchers have generated CD51-FLP mice and matching AAV tools to show that CD51+ and CD51- astrocytes are functionally distinct subtypes. The two populations differ in development, molecular expression and neural circuit function. In the developing cortex, CD51+ astrocytes are enriched in genes tied to synapse formation. Chemogenetic stimulation of these cells increased both excitatory and inhibitory synapses, and knocking out Gpc6 abolished the increase in excitatory synapse formation, identifying Gpc6 as a key mediator. Published in Nature, the work provides genetic tools for selectively targeting astrocyte subtypes and reframes astrocytes as a heterogeneous population with distinct roles in circuit assembly. Open questions include how CD51-defined subtypes behave in other brain regions and whether the findings extend beyond the developing cortex.
Written by a model from the reports · updated 3 hours ago
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- NaturePickCD51 delineates functionally distinct astrocyte subtypes in neural circuits
Researchers developed a CD51-FLP mouse line with matching AAV tools and show that CD51+ and CD51− astrocytes differ in development, molecular expression and neural circuit function. In the developing cortex, CD51+ cells are enriched in synapse-formation genes; chemogenetic stimulation increases excitatory and inhibitory synapses, and Gpc6 knockout abolishes the increase in excitatory synapse formation.
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