Methods of harvesting rare cells from blood products
First Claim
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1. A method of harvesting rare cells from a blood product comprising:
- contacting a blood product containing rare cells with a porous medium comprising a fibrous web;
selectively retaining said rare cells on said porous medium;
contacting said porous medium with a nutrient-rich elution fluid including a viscosity increasing polymer comprising dextran; and
selectively eluting said rare cells from said porous medium.
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Abstract
The present invention provides methods of harvesting rare cells from blood products and/or obtaining products of the rare cells. The method includes contacting a blood product containing rare cells with a porous medium, and selectively retaining rare cells of interest on the porous medium. The porous medium can be contacted with an elution fluid wherein a population of the rare cells is eluted from the porous medium. Rare cells selectively retained on the porous medium can be cultured on the porous medium, and products of the rare cells can be obtained.
90 Citations
52 Claims
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1. A method of harvesting rare cells from a blood product comprising:
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contacting a blood product containing rare cells with a porous medium comprising a fibrous web;
selectively retaining said rare cells on said porous medium;
contacting said porous medium with a nutrient-rich elution fluid including a viscosity increasing polymer comprising dextran; and
selectively eluting said rare cells from said porous medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of harvesting rare cells from a blood product comprising:
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contacting a blood product containing said rare cells with a porous medium comprising a fibrous web;
selectively retaining said rare cells on said porous medium;
contacting said porous medium with an elution fluid at a temperature of between about 5-37°
C., wherein said elution fluid includes a viscosity increasing polymer comprising dextran; and
selectively eluting said rare cells from said porous medium. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of harvesting rare cells comprising stem cells from a blood product comprising:
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contacting a blood product containing said rare cells comprising stem cells with a porous medium;
selectively retaining said stem cells on said porous medium;
backflushing said porous medium with a nutrient-rich elution fluid at a temperature of between about 5-37°
C., wherein said elution fluid includes a viscosity increasing polymer; and
selectively eluting said stem cells from said porous medium. - View Dependent Claims (41, 42, 43, 44, 45)
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46. A method of harvesting rare cells from a blood product comprising:
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contacting a blood product containing rare cells comprising dendritic cells with a porous medium comprising a fibrous web;
selectively retaining said dendritic cells on said porous medium;
contacting said porous medium with an elution fluid at a temperature of between about 5-37°
C., wherein said elution fluid includes a viscosity increasing polymer;
selectively eluting said dendritic cells from said porous medium; and
culturing the dendritic cells. - View Dependent Claims (47)
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48. A method of harvesting rare cells from a blood product comprising:
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contacting a blood product containing rare cells comprising dendritic cells with a porous medium;
selectively retaining said dendritic cells on said porous medium;
contacting said porous medium with a nutrient-rich elution fluid including a viscosity increasing polymer;
selectively eluting said dendritic cells from said porous medium; and
,culturing the dendritic cells.
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49. A method of harvesting rare cells from a blood product comprising:
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contacting a blood product including at least first and second populations of rare cells with a porous medium;
selectively retaining said second population of rare cells on said porous medium;
contacting said porous medium with a nutrient-rich elution fluid comprising a viscosity increasing polymer and a cytokine; and
selectively eluting said first population of rare cells from said porous medium.
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50. A method of harvesting rare cells from a blood product comprising:
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contacting a blood product including at least first and second populations of rare cells with a porous medium;
selectively retaining said second population of rare cells on said porous medium;
contacting said porous medium with a nutrient-rich elution-fluid comprising a viscosity increasing polymer and at least one complement complex product; and
selectively eluting said first population of rare cells from said porous medium. - View Dependent Claims (51)
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52. A method of harvesting rare cells from a blood product comprising:
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contacting a blood product containing rare cells comprising leukocytes with a porous medium comprising a fibrous web;
selectively retaining said rare cells on said porous medium;
backflushing said porous medium with a nutrient-rich elution fluid including a viscosity increasing polymer comprising dextran; and
selectively eluting said rare cells from said porous medium.
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Specification