The author is in the Department of Physiology, 655 W. Baltimore Street, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA. sthom003@umaryland.edu
The EphB ephrin receptors are involved in synapse formation. New work now implicates the EphA family, as glial ephrin3A activates the EphA4 receptor on dendritic spines to stabilize spine shape.
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REFERENCE Ephrins Nature Encyclopaedia of Life Sciences