Ephrins as Novel Targets in Neuronal Regeneration

Summary Chemokines play an intrinsic role in immunity and neural trafficking through their interactions with GPCRs. A reverse signaling mechanism of Ephrin B/EphB receptor has been discovered to inhibit GPCR sensitivity to chemokine binding. Reduced GPCR sensitivity is mediated by a novel cytoplasmic protein, PDZ-RGS3. Results in a Xenopus adhesion assay indicate that attraction of the SDF-1 chemokine to its GPCR receptor, CXCR4 (BDNF), was inhibited by PDZ-RGS3 binding with Ephrin B. The invention provides novel evidence that G-proteins can be regulated through ephrins, and further, that the G-protein pathway can be modulated by extracellular signals acting through the PDZ-RGS3 protein.

Applications For Further Information Please Contact the Director of Business Development Katie Gordon Email: [email protected] Telephone: (617) 432-0920

Inventor(s): Flanagan, John G.

Type of Offer: Licensing



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