Pigment Epithelium-derived Factor (PEDF) Prevents Retinal Cell Death via Pigment Epithelium- derived Factor-R (PEDF-R): Identification of a Functional Ligand Binding Site*

نویسندگان

  • Preeti Subramanian
  • Silvia Locatelli-Hoops
  • Jason Kenealey
  • Jacqueline DesJardin
  • Luigi Notari
  • S. Patricia Becerra
چکیده

Background: PEDF has neurotrophic activity and interacts with PEDF-R, a membrane-linked lipase. Results: A PEDF-binding region of PEDF-R is required for PEDF-R enzymatic stimulation and peptides derived from this region block PEDF/PEDF-R-mediated retinal survival activities. Conclusions: A ligand binding domain is identified in PEDF-R, a critical receptor for PEDF’s survival activity. Significance: The findings provide mechanistic insight into the survival activity of PEDF.

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تاریخ انتشار 2013