Method of providing a substrate with a ready-to-use, uniformly distributed extracellular matrix
First Claim
1. A method of preparing a cell culture substrate with a uniformly distributed extracellular matrix comprising:
- a) raising the pH of an acidic solution of an extracellular matrix comprising collagen fibrils to 6-8 by the addition of a base;
b) applying the solution of the extracellular matrix of step a) to a porous substrate area;
c) polymerizing said applied extracellular matrix on said porous substrate area, wherein said polymerizing comprises incubating said solution at 15°
C. to 40°
C.;
d) freezing said polymerized extracellular matrix on said porous substrate area;
e) lyophilizing said frozen extracellular matrix on said porous substrate area, thereby obtaining a cell culture substrate with a uniformly distributed extracellular matrix.
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Abstract
Method of providing a substrate with a ready-to-use uniformly distributed extracellular matrix is disclosed. This method includes applying extracellular matrix components to a substrate area; incubating the extracellular matrix components to allow polymerization thereof; freezing the polymerized extracellular matrix on the substrate area; lyophilizing the frozen extracellular matrix on the substrate area; and allowing the lyophilized extracellular matrix to warm to room temperature. Also contemplated is a cell culture apparatus having a dried uniformly distributed extracellular matrix formed by the above-mentioned method.
24 Citations
9 Claims
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1. A method of preparing a cell culture substrate with a uniformly distributed extracellular matrix comprising:
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a) raising the pH of an acidic solution of an extracellular matrix comprising collagen fibrils to 6-8 by the addition of a base; b) applying the solution of the extracellular matrix of step a) to a porous substrate area; c) polymerizing said applied extracellular matrix on said porous substrate area, wherein said polymerizing comprises incubating said solution at 15°
C. to 40°
C.;d) freezing said polymerized extracellular matrix on said porous substrate area; e) lyophilizing said frozen extracellular matrix on said porous substrate area, thereby obtaining a cell culture substrate with a uniformly distributed extracellular matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification