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Last Updated: October 22, 2020

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Patent: 4,698,301

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Summary for Patent: 4,698,301
Title: Angiogenic factor production
Abstract:New angiogenic factors of low molecular weight (under 1000), useful as treatment agents for wound healing and for biological assaying, made from in vitro cultures of a wide variety of tumor cells by a treatment which breaks up the proteinaceous tumor angiogenesis factors (\"TAF\") in them and liberates the more mobile low molecular weight factors. The treatment can be applied to cell extracts or the aqueous portion of the culture, and the proteinaceous part may be rendered insoluble or captured chemically so as to release the new factor. Separation techniques which can be used include solvent extraction of dried liquid fractions, using polar solvents such as ethanol, and the liberated factor can be purified chromatographically using adsorbents for which the factor has affinity, especially a basic adsorbent and preferably polysaccharide-based, followed by elution.
Inventor(s): Weiss; Jacqueline B. (Didsbury, Manchester M20 OTB, GB2), Hill; Christopher R. (Wokingham, Berkshire, GB2)
Assignee:
Application Number:06/556,174
Patent Claims:see list of patent claims

Details for Patent 4,698,301

Applicant Tradename Biologic Ingredient Dosage Form BLA Number Approval Date Patent No. Assignee Estimated Patent Expiration Status Orphan Source
Smith And Nephew SANTYL collagenase OINTMENT;TOPICAL 101995 001 1965-06-04   Start Trial 2004-10-06 RX search
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Number >Approval Date >Patent No. >Assignee >Estimated Patent Expiration >Status >Orphan >Source

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