[미국특허]
Allografts combined with tissue derived stem cells for bone healing
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61K-035/38
A61L-027/38
A61L-027/36
A61L-027/54
C12N-005/0775
A01N-001/02
A61K-035/12
출원번호
US-0880675
(2015-10-12)
등록번호
US-9808558
(2017-11-07)
발명자
/ 주소
Shi, Yaling
출원인 / 주소
AlloSource
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
0인용 특허 :
193
초록▼
There is disclosed a method of combining mesenchymal stem cells (MSCs) with a bone substrate. In an embodiment, the method includes obtaining tissue having MSCs together with unwanted cells. The tissue is digested to form a cell suspension having MSCs and unwanted cells. The cell suspension is added
There is disclosed a method of combining mesenchymal stem cells (MSCs) with a bone substrate. In an embodiment, the method includes obtaining tissue having MSCs together with unwanted cells. The tissue is digested to form a cell suspension having MSCs and unwanted cells. The cell suspension is added to the substrate. The substrate is cultured to allow the MSCs to adhere. The substrate is rinsed to remove unwanted cells. In various embodiments, the tissue is adipose tissue, muscle tissue, or bone marrow tissue. In an embodiment, there is disclosed an allograft product including a combination of MSCs with a bone substrate in which the combination is manufactured by culturing MSCs disposed on the substrate for a period of time to allow the MSCs to adhere to the substrate, and then rinsing the substrate to remove unwanted cells from the substrate. Other embodiments are also disclosed.
대표청구항▼
1. A method of making an allograft product for enhancing bone formation, the method consisting of: providing a bone substrate obtained from a human, cadaveric donor;providing a tissue comprising mesenchymal stem cells and unwanted cells from the human, cadaveric donor;processing the tissue to form a
1. A method of making an allograft product for enhancing bone formation, the method consisting of: providing a bone substrate obtained from a human, cadaveric donor;providing a tissue comprising mesenchymal stem cells and unwanted cells from the human, cadaveric donor;processing the tissue to form a cell suspension comprising the mesenchymal stem cells and the unwanted cells;adding the cell suspension to the bone substrate to form a seeded bone substrate;incubating the seeded bone substrate for a period of time to allow the mesenchymal stem cells to adhere to the bone substrate; andrinsing the seeded bone substrate to remove the unwanted cells from the bone substrate;thereby making the allograft product for enhancing bone formation, wherein the allograft product comprises bone substrate with mesenchymal stem cells adhered thereto. 2. The method in accordance with claim 1, wherein the tissue is selected from the group consisting of adipose tissue, muscle tissue, and bone marrow tissue. 3. A method in accordance with claim 1, wherein the bone substrate comprises bone tissue that has been subjected to a demineralization process. 4. A method in accordance with claim 1, wherein the bone substrate comprises cortical bone. 5. A method in accordance with claim 1, wherein the bone substrate comprises cancellous bone. 6. A method in accordance with claim 1, wherein the bone substrate comprises ground bone. 7. A method in accordance with claim 1, wherein the bone substrate comprises both cortical and cancellous bone. 8. A method in accordance with claim 1, wherein the bone substrate comprises demineralized cancellous bone. 9. A method in accordance with claim 1, wherein the bone substrate comprises fully demineralized bone, partially demineralized bone, or a combination thereof. 10. A method in accordance with claim 1, wherein the incubating is performed for about 1-3 days. 11. A method in accordance with claim 1, wherein the incubating is performed for no more than about 3 days. 12. A method in accordance with claim 1, wherein the incubating consists of incubating the seeded bone substrate in growth medium. 13. A method of making an allograft product for enhancing bone formation, the method consisting of: providing a bone substrate obtained from a human, cadaveric donor;providing a tissue comprising mesenchymal stem cells and unwanted cells from the human, cadaveric donor;processing the tissue to form a cell suspension comprising the mesenchymal stem cells and the unwanted cells;adding the cell suspension to the bone substrate to form a seeded bone substrate;incubating the seeded bone substrate for a period of time to allow the mesenchymal stem cells to adhere to the bone substrate;rinsing the seeded bone substrate to remove the unwanted cells from the bone substrate; andplacing the seeded bone substrate into a cryopreservation medium;thereby making the allograft product for enhancing bone formation, wherein the allograft product comprises bone substrate with mesenchymal stem cells adhered thereto. 14. The method in accordance with claim 13, wherein the tissue is selected from the group consisting of adipose tissue, muscle tissue, and bone marrow tissue. 15. A method in accordance with claim 13, wherein the bone substrate comprises bone tissue that has been subjected to a demineralization process. 16. A method in accordance with claim 13, wherein the bone substrate comprises cortical bone. 17. A method in accordance with claim 13, wherein the bone substrate comprises cancellous bone. 18. A method in accordance with claim 13, wherein the bone substrate comprises ground bone. 19. A method in accordance with claim 13, wherein the bone substrate comprises both cortical and cancellous bone. 20. A method in accordance with claim 13, wherein the bone substrate comprises demineralized cancellous bone. 21. A method in accordance with claim 13, wherein the bone substrate comprises fully demineralized bone, partially demineralized bone, or a combination thereof. 22. A method in accordance with claim 13, wherein the incubating is performed for about 1-3 days. 23. A method in accordance with claim 13, wherein the incubating is performed for no more than about 3 days. 24. A method in accordance with claim 13, wherein the incubating consists of incubating the seeded bone substrate in growth medium.
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