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Last Updated: September 24, 2022

Patent: 5,270,447

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Summary for Patent: 5,270,447
Title: Metalloproteinase peptides: role in diagnosis and therapy
Abstract:A family of metalloproteinases exist which cleave extracellular matrix molecules. These metalloproteinases are secreted in a latent inactive form and require activation in order to specifically cleave the preferred substrate. A series of peptides have been prepared based on the complete sequence analysis of type IV Procollagenase. Peptide inhibitors were synthesized which correspond to cysteine repeat regions and histidine containing regions; the mechanism of action of these peptides involves inhibition of binding of the enzyme to the substrate. Peptide inhibitors were synthesized which correspond to the peptide cleaved off during activation, and constitute a novel class of metalloproteinase inhibitors. These inhibitors are members of a series of peptides which contain the core amino acid sequence PRCG. The cysteine residue is required for activity. Affinity purified antibodies directed against specific peptides can be used to a) detect any general metalloproteinase enzyme with the sequence in part VAAHE or PRCGNPD, and distinguish it from other known members of the metalloproteinase family, b) block functional domains resulting in the inhibition of enzyme activity, and c) distinguish latent from activated forms of the enzyme.
Inventor(s): Liotta; Lance A. (Potomac, MD), Stetler-Stevenson; William (Gaithersburg, MD), Krutzsch; Henry (Bethesda, MD)
Assignee: The United States of America as represented by the Department of Health (Washington, DC)
Application Number:07/317,407
Patent Claims:see list of patent claims

Details for Patent 5,270,447

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Smith & Nephew, Inc. SANTYL collagenase Ointment 101995 06/04/1965 See Plans and Pricing 2010-12-14
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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Serving leading biopharmaceutical companies globally:

Boehringer Ingelheim
Harvard Business School
Express Scripts

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