Lysyl 4-aminobenzoic acid derivatives as potent small molecule mimetics of plasminogen kringle 5 |
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Authors: | Sheppard George S Kawai Megumi Craig Richard A Davidson Donald J Majest Sandra M Bell Randy L Henkin Jack |
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Institution: | Abbott Laboratories, Global Pharmaceutical Research and Development, 100 Abbott Park Road, Abbott Park, IL 60064, USA. george.sheppard@abbott.com |
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Abstract: | Kringle 5, a proteolytic fragment of human plasminogen has been shown to potently inhibit angiogenesis. The tetrapeptide KLYD derived from kringle 5 has been shown to capture many activities of kringle 5 in vitro. Further simplification has been achieved by replacement of the two central amino acids with a 4-aminobenzoic acid spacer group. Molecules displaying the required recognition groups on this core show similar in vitro properties to kringle 5, and are able to displace radiolabeled protein from a high affinity binding site on endothelial cells. |
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