Cell composition and methods of making the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61K-035/12
C12N-005/02
C12N-005/071
A01N-001/02
출원번호
US-0544949
(2009-08-20)
등록번호
US-10104880
(2018-10-23)
발명자
/ 주소
Zeitlin, Andy
Russotti, Gregory
He, Shuyang
Pal, Ajai
Chen, Hong J.
Brieva, Thomas
Shorr, Ryan
Murphy, Brian
출원인 / 주소
CELULARITY, INC.
대리인 / 주소
Smith, Timothy L.
인용정보
피인용 횟수 :
0인용 특허 :
188
초록
Provided herein are improved methods for the formulation of compositions comprising placental stem cells, and improved compositions and cell formulations produced thereby.
대표청구항▼
1. A method of making a composition comprising homogenous isolated human adherent placental cells that have been passaged in vitro at least two times, comprising: (a) contacting said cells with a first solution comprising dextran and human serum albumin (HSA) to form a cell-containing solution;(b) f
1. A method of making a composition comprising homogenous isolated human adherent placental cells that have been passaged in vitro at least two times, comprising: (a) contacting said cells with a first solution comprising dextran and human serum albumin (HSA) to form a cell-containing solution;(b) filtering out macro cell clumps from the cell-containing solution;(c) diluting said cells to no more than about 10±3×106 cells per milliliter with a second solution comprising dextran, dimethylsulfoxide (DMSO), and HSA; and(d) cryopreserving said cells after step (c), thereby making a composition comprising isolated human adherent placental cells. 2. The method of claim 1, wherein said dextran is dextran 40. 3. The method of claim 1, wherein said second solution comprises about 5.5% dextran 40. 4. The method of claim 1, wherein said second solution comprises about 10% HSA. 5. The method of claim 1, wherein said second solution comprises about 2.5% DMSO. 6. The method of claim 1, wherein said second solution comprises about 7.5% to about 9% dextran. 7. The method of claim 1, wherein said composition comprising cells comprises about 1.0±0.3×106 cells per milliliter to about 5.0±1.5×106 cells per milliliter. 8. A method of making a composition comprising cells, comprising: (a) suspending a plurality of homogenous isolated human adherent placental cells, which have been passaged in vitro at least two times, in a 5.5% dextran 40, 10% HSA solution to form a cell-containing solution;(b) filtering the cell-containing solution through a 70 μM filter to filter out macro cell clumps from the cell-containing solution;(c) diluting the cell-containing solution in 5.5% dextran 40, 10% HSA, and 5% DMSO to no more than about 10±3×106 cells/mL;(d) cryopreserving the cells; and(e) thawing the cells to produce said composition comprising cells. 9. A method of making a composition comprising cells, comprising: (a) centrifuging a plurality of homogenous isolated human adherent placental cells, which have been passaged in vitro at least two times, to collect the cells;(b) resuspending the cells in 5.5% dextran 40;(c) centrifuging the cells to collect the cells;(d) resuspending the cells in a 5.5% dextran 40 solution that comprises 10% HSA to form a cell-containing solution;(e) filtering the cell-containing solution through a 70 μM to 100 μM filter to filter out macro cell clumps from the cell-containing solution;(f) diluting the cell-containing solution in 5.5% dextran 40, 10% HSA, and 5% DMSO to no more than about 10±3×106 cells/mL;(g) cryopreserving the cells; and(h) thawing the cells to produce said composition comprising cells. 10. A method of making a composition comprising homogenous isolated human adherent placental cells, comprising: (a) providing a plurality of homogenous isolated human adherent placental cells, which have been passaged in vitro at least two times, in a solution comprising 5.5% dextran 40 and 10% HSA to form a solution comprising isolated human adherent placental cells;(b) filtering said solution comprising homogenous isolated human adherent placental cells to filter out macro cell clumps from the cell-containing solution to produce filtered isolated human adherent placental cells;(c) diluting said filtered isolated human adherent placental cells with an amount of a solution comprising 5.5% dextran 40, 10% HSA and 5% dimethylsulfoxide (DMSO) sufficient to bring said filtered isolated human adherent placental cells to about 10±3×106 cells per milliliter;(d) diluting said isolated human adherent placental cells with 10% dextran 40 at a ratio of about 1:1 to about 1:11 isolated human adherent placental cells:dextran 40 to produce said composition;(e) cryopreserving the cells. 11. The method of claim 1, wherein said filter is a 70 μM filter. 12. The method of claim 1, wherein said filter is a 100 μM filter. 13. The method of claim 1, wherein said isolated human adherent placental cells are CD10+, CD34− and CD105+. 14. The method of claim 13, wherein said CD10+, CD34− and CD105+ cells are CD200+. 15. The method of claim 14, wherein said CD10+, CD34−, CD105+ and CD200+ cells are either CD45− or CD90+. 16. The method of claim 14, wherein said CD10+, CD34−, CD105+ and CD200+ cells are CD45− and CD90+. 17. The method of claim 1, further comprising concentrating the composition comprising cells to about 5×106 cells per milliliter to 1×108 cells per milliliter. 18. The method of claim 17, further comprising subcutaneously administering the composition comprising cells to a subject. 19. The method of claim 8, further comprising diluting the com position comprising cells after step (e) 1:1 to 1:11 with 10% dextran 40. 20. The method of claim 9, further comprising diluting the composition comprising cells after step (h) 1:1 to 1:11 with 10% dextran 40. 21. The method of claim 1, wherein said filter is a 70 μM to 100 μM filter. 22. The method of claim 1, wherein said second solution comprises 5.0% dextran, 10% HSA, and 2.5% DMSO.
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