Claims for Patent: 5,593,859

Summary for Patent: 5,593,859

Title:	Synthesis of human procollagens and collagens in recombinant DNA systems
Abstract:	The invention is transfected cells, substantially all of which contain at least one human collagen gene and express fibrillar collagen molecules derived using methods for synthesizing collagen and collagen fibrils in said cell lines, and methods for treatment of disorders in humans using said collagen derived from said stable cell lines.
Inventor(s):	Prockop; Darwin J. (Philadelphia, PA), Ala-Kokko; Leena (Andalusia, PA), Fertala; Andrzej (Voorhees, NJ), Sieron; Aleksander (Conshohocken, PA), Kivirikko; Kari I. (Oulu, FI), Geddis; Amy (Philadelphia, PA), Pihlajaniemi; Taina (Oulunsalo, FI)
Assignee:	Thomas Jefferson University (Philadelphia, PA)
Application Number:	08/211,820
Patent Claims:	1. Recombinant eukaryotic host cells comprising at least one transfected human procollagen or collagen gene, wherein said transfected human collagen or procollagen gene is selected from the group consisting of a gene encoding at least one polypeptide chain of human type I, human type II, or human type III procollagen or collagen, and at least one transfected gene encoding prolyl 4-hydroxylase or a subunit of prolyl 4-hydroxylase. 2. The cells of claim 1 wherein said transfected collagen or procollagen gene is selected from the group consisting of COL1A1, COL1A2, COL2A1, and COL3A1. 3. The cells of claim 1 wherein one of said transfected human procollagen gene is the COL1A1 gene encoding the pro.alpha.1(I) chain of human type I procollagen. 4. The cells of claim 3 further comprising a transfected procollagen gene is the COL1A2 gene encoding the pro.alpha.2(I) chain of human type I procollagen. 5. The cells of claim 1 wherein one of said transfected human procollagen gene is the COL2A1 gene encoding the pro.alpha.1(II) chain of human type II procollagen. 6. The cells of claim 1 wherein one of said transfected human procollagen gene is the COL3A1 genes encoding the pro.alpha.1(III) chain of the human type III procollagen. 7. The cells of claim 1 wherein said collagen or procollagen comprises at least one collagenase recognition site. 8. The cells of claim 1 wherein said host cells are non-human mammalian cells. 9. The cells of claim 1 wherein said host cells are insect cells. 10. The cells of claim 1 wherein said host cells are yeast cells. 11. The yeast cells of claim 10 wherein said cells are Saccharomyces cervisiae. 12. The cells of claim 1 wherein said cells are selected from the group consisting of mammalian cells, yeast and insect cells. 13. A method for synthesizing procollagen or collagen in recombinant eukaryotic host cells comprising: transfecting at least one human procollagen or collagen gene encoding at least one polypeptide chain selected from the group consisting of human type I collagen or procollagen, human type II collagen or procollagen, and human type III collagen or procollagen into cells; transfecting a gene encoding prolyl 4-hydroxylase or a subunit of prolyl 4-hydroxylase into said cells; culturing said cells under conditions such that said transfected procollagen or collagen genes are expressed; and selecting transgected cells that comprise at least one molecule derived from said procollagen or collagen or genes. 14. The method of claim 13 wherein one of said transfected human procollagen genes is the COL1A1 gene encoding the pro.alpha.1 (I) Chain of human type I procollagen. 15. The method of claim 14 further comprising the step of transfecting the host cell with the COL1A2 gene encoding the pro.alpha.2 (I) chain of human type I procollagen. 16. The method of claim 13 wherein one of said transfected human procollagen genes is the COL2A1 gene encoding the pro.alpha.1(II) chain of human type II procollagen. 17. The method of claim 13 wherein one of said transfected human procollagen genes is the COL3A1 gene encoding the pro.alpha.1 (III) chain of human type III procollagen. 18. The method of claim 13 wherein said collagen or procollagen comprises at least one collagenase recognition site. 19. The method of claim 13 wherein said recombinant host cells are non-human mammalian cells. 20. The method of claim 13 wherein said recombinant cells are insect cells. 21. The method of claim 13 wherein said recombinant host cells are yeast cells. 22. The method of claim 13 wherein the recombinant eukaryotic host cells are selected from the group comprising mammalian cells, yeast and insect cells. 23. The method of claim 21 wherein said recombinant host cells are Saccharomyces cervisiae.

Details for Patent 5,593,859

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Smith & Nephew, Inc.	SANTYL	collagenase	Ointment	101995	06/04/1965		2014-01-14