Claims for Patent: 5,766,951

Summary for Patent: 5,766,951

Title:	Serum-free medium supporting growth and proliferation of normal bone marrow cells
Abstract:	A serum-free medium which supports the growth and proliferation of bone marrow cells is described. Recipes for two formulations are given, one of which provides a medium suitable for growth of bone marrow cells for use in human therapeutic protocols.
Inventor(s):	Brown; Ronald L. (Derwood, MD)
Assignee:	Quality Biological, Inc. (Gaithersburg, MD)
Application Number:	07/974,783
Patent Claims:	1. A serum-free liquid culture medium, comprising: water; an effective amount of glutamine; an effective amount of human serum albumin having cholesterol bound thereto; transferrin in an amount of 50 to 200 .mu.g/ml; and an effective amount of insulin, wherein said medium supports the growth of normal cells from human bone marrow, with the proviso that said medium does not contain lecithin, wherein all components of the medium are freely soluble in said water and wherein said medium is prepared solely from U.S pharmaceutical trade reagents. 2. The medium of claim 1, wherein the concentration of albumin is between 1 and 8 mg/ml. 3. A method for growing normal cells from human bone marrow which comprises; cultivating said cells in a liquid serum-free medium comprising: water; glutamine; 1-8 mg/ml of a serum-free preparation of albumin from human serum; an effective trace amount of cholesterol provided by said serum-free preparation of albumin; an effective amount of transferrin; and insulin, wherein each of said glutamine, serum-free preparation of albumin, transferrin and insulin is dissolved in said waters, wherein said medium does not contain lecithin and wherein said medium is prepared solely from U.S. pharmaceutical grade reagents. 4. A method for growing normal cells from human bone marrow which comprises cultivating said cells in the medium of claim 1. 5. A method for growing normal cells from human bone marrow which comprises cultivating said cells in the medium of claim 1, wherein said medium further comprises at least one cytokine. 6. The method of claim 5, wherein said cytokine is selected from the group consisting of stem cell factor, interleukin-1, interleukin-3, interleukin-6, granulocyte-macrophage colony stimulating factor, granulocyte colony stimulating factor, macrophage stimulating factor and erythropoietin. 7. A method for growing normal cells from human bone marrow which comprises culturing said cells in the medium of claim 1, wherein said medium is replaced at intervals of 3-7 days. 8. A liquid serum free culture medium which supports the growth and proliferatioan of human bone marrow cells, comprising: water; and water soluble additives, wherein said water soluble additives include at least the following: an effective amount of glutamine, an effective amount of human serum albumin having cholesterol bound thereto, an effective amount of transferrin of at least 50 .mu.g/ml, and an effective amount of insulin, wherein said medium supports the growth of normal cells from human bone marrow and wherein said medium does not contain lecithin and is prepared solely from U.S. pharmaceutical grade reagents. 9. A method for growing normal cells from human bone marrow which comprises cultivating said cells in said medium of claim 8. 10. The serum free culture medium of claim 8, which further comprises at least one cytokine. 11. A method for growing normal cells from human bone marrow which comprises cultivating said cells in said medium of claim 10. 12. A liquid serum-free culture medium which supports the growth of normal cells from human bone marrow for subsequent bone marrow transplantation, comprising: water; an effective amount of human serum albumin between 1 and 8 mg/ml with an effective amount of cholesterol bound thereto; and an effective amount of transferrin of at least 50 .mu.g/ml; wherein said liquid serum-free culture medium does not contain lecithin and is prepared solely from U.S. pharmaceutical grade reagents. 13. A liquid serum-free culture medium which supports the growth of normal cells from human bone marrow, comprising: water; an effective amount of inorganic salts to maintain cell osmolality and mineral requirements; an effective amount of essential amino acids; an effective amount of glucose; an effective amount of vitamins and co-factors; a buffer; an effective amount of insulin; an effective amount of transferrin of at least 50 .mu.g/ml; and an effective amount of cholesterol bound to a soluble carrier, wherein said medium does not contain lecithin and is prepared solely from U.S Pharmaceutical grade reagents. 14. A liquid serum-free liquid culture medium, comprising: water; an effective amount of albumin of at least 1 mg/ml; an effective amount of cholesterol bound to said albumin or to another soluble carrier; an effective amount of transferrin of at least 20 mg/ml; and an effective amount of insulin; wherein said medium does not contain lecithin and supports the growth and proliferation of normal cells from human bone marrow. 15. The medium of claim 14, wherein said albumin is bovine serum albumin. 16. The medium of claim 14, which is made solely from U.S. pharmaceutical grade reagents. 17. A method for growing cells from human bone marrow which comprises cultivating said cells in the medium of claim 14, 15, or 16. 18. The medium of claim 5, wherein the cholesterol concentration is between 50 and 500 .mu.g/ml. 19. The serum-free medium of claim 14, which comprises a lipoprotein preparation, wherein said lipoprotein preparation provides cholesterol in an amount of 50 to 500 .mu.g/ml. 20. The serum-free medium of claim 12 or 13, which further comprises at least on cytokine. 21. The serum-free medium of claim 20, wherein said cytokine is selected from the group consisting of stem cell factor, interleukin-1, interleukin-3, interleukin-6, granulocyte-macrophage colony stimulating factor, granulocyte colony stimulating factor, macrophage stimulating factor and erythropoietin. 22. A method for expansion of human bone marrow cells which comprises cultivating human bone marrow cells in a medium prepared from U.S. pharmaceutical grade reagents according to claim 8, 10, 12, 13, 16, and expansion of specific hematopoietic lineages of said bone marrow cells for bone marrow transplantation.

Details for Patent 5,766,951

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Grifols Therapeutics Llc	ALBUKED, PLASBUMIN-20, PLASBUMIN-25, PLASBUMIN-5	albumin (human)	For Injection	101138	10/21/1942		2040-01-28
Baxalta Us Inc.	BUMINATE, FLEXBUMIN	albumin (human)	Injection	101452	03/03/1954		2040-01-28
Csl Behring Ag	ALBURX	albumin (human)	Injection	102366	07/23/1976		2040-01-28