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  Vol. 108 No. 4, April 1990 TABLE OF CONTENTS
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In Vivo Angiogenic Activity of Interleukins

David BenEzra, MD, PhD; Itzhak Hemo, MD; Genia Maftzir, MSc

Arch Ophthalmol. 1990;108(4):573-576.


Abstract



• Interleukin 1 incorporated into Elvax-40 (ethylene-vinyl-acetate copolymer consisting of 40% vinyl-acetate by weight) induces a rapid and strong angiogenic stimulus when implanted in rabbit corneas at a distance of 2.5 mm from the limbus. A constant and reproducible neovascular stimulus was observed with 5 ng per implant of recombinant human interleukin 1 alpha or 100 ng per implant of recombinant human interleukin 1 beta. At these concentrations, neither tumor necrosis factor nor interleukin 2 induced any neovascular stimulus. These data are interpreted as an indication for the possible role of interleukin 1 in angiogenesis of ocular (and other) tissues. As interleukin 1 is produced by various cells, it is hypothesized that this molecule may be the "unitarian angiogenic factor."



Author Affiliations



From the Pediatric and Immuno-Ophthalmology Unit and the Laboratory of Ocular Angiogenesis, Department of Ophthalmology, Hadassah University Hospital, Jerusalem, Israel.


Footnotes



Accepted for publication November 28, 1989.

Reprint requests to Department of Ophthalmology, Hadassah University Hospital, PO Box 1200, 91120 Jerusalem, Israel (Dr BenEzra).



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