Peptides for enhanced cell attachment and growth
First Claim
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1. A method for growing adherent cells, comprising:
- (a) providing a cell adhesion promoting (CAP) peptide-modified polymer composition, said composition comprising a polymer surface, a hyaluronic acid (HA) layer bonded to said polymer surface, and one or more pentapeptides covalently bound to the HA layer, wherein said pentapeptides promote adherence of cells that substantially do not adhere to the HA layer in the absence of said pentapeptides;
(b) adding adherent cells in a growth-promoting culture medium to said composition;
(c) allowing said adherent cells to adhere to said composition; and
(d) incubating said adherent cells in the culture medium for a selected period of time under conditions that support cell growth;
thereby growing said adherent cells.
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Abstract
The present invention relates to cell adhesion promoting (“CAP”) peptide combinations that promote cell attachment or cell adhesion to culture surfaces that are otherwise cell adhesion resistant “CAR”. The invention provides combination of peptides that, when covalently coupled to a CAR layer such as hyaluronic acid that has been created on a polystyrene surface, promote cell attachment, growth differentiation, and execution of other desired cellular functions in culture.
93 Citations
24 Claims
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1. A method for growing adherent cells, comprising:
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(a) providing a cell adhesion promoting (CAP) peptide-modified polymer composition, said composition comprising a polymer surface, a hyaluronic acid (HA) layer bonded to said polymer surface, and one or more pentapeptides covalently bound to the HA layer, wherein said pentapeptides promote adherence of cells that substantially do not adhere to the HA layer in the absence of said pentapeptides; (b) adding adherent cells in a growth-promoting culture medium to said composition; (c) allowing said adherent cells to adhere to said composition; and (d) incubating said adherent cells in the culture medium for a selected period of time under conditions that support cell growth;
thereby growing said adherent cells. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for growing adherent liver cells, comprising:
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(a) providing a cell adhesion promoting (CAP) peptide-modified polymer composition, said composition comprising a polymer surface, a cell adhesion resistant (CAR) material bonded to said polymer surface, and one or more pentapeptides covalently bound to the CAR material, wherein said pentapeptides promote adherence of liver cells that substantially do not adhere to the CAR material in the absence of said pentapeptides; (b) adding adherent liver cells in a growth-promoting culture medium to said composition; (c) allowing said liver cells to adhere to said composition; and (d) incubating said adherent liver cells in the culture medium for a selected period of time under conditions that support liver cell growth;
thereby growing said adherent liver cells. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for growing adherent liver cells, comprising:
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(a) providing a cell adhesion promoting (CAP) peptide-modified polymer composition, said composition comprising a polymer surface, a hyaluronic acid (HA) layer bonded to said polymer surface, and one or more pentapeptides covalently bound to the HA layer, wherein said pentapeptides promote adherence of liver cells that substantially do not adhere to the HA layer in the absence of said pentapeptides; (b) adding adherent liver cells in a growth-promoting culture medium to said composition; (c) allowing said adherent liver cells to adhere to said composition; and (d) incubating said adherent liver cells in the culture medium for a selected period of time under conditions that support liver cell growth;
thereby growing said adherent liver cells. - View Dependent Claims (15, 16, 17)
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18. A method for growing adherent cells, comprising:
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(a) providing a cell adhesion promoting (CAP) peptide-modified polymer composition, said composition comprising a polymer surface, a hyaluronic acid (HA) layer bonded to said polymer surface, and one or more peptides covalently bound to the HA layer, wherein said peptides promote adherence of cells that substantially do not adhere to the HA layer in the absence of said peptides and wherein said one or more peptides lack an RGD sequence; (b) adding adherent cells in a growth-promoting culture medium to said composition; (c) allowing said adherent cells to adhere to said composition; and (d) incubating said adherent cells in the culture medium for a selected period of time under conditions that support cell growth;
thereby growing said adherent cells. - View Dependent Claims (19, 20)
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21. A method for growing adherent liver cells, comprising:
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(a) providing a cell adhesion promoting (CAP) peptide-modified polymer composition, said composition comprising a polymer surface, a cell adhesion resistant (CAR) material bonded to said polymer surface, and one or more peptides covalently bound to the CAR material, wherein said peptides promote adherence of liver cells that substantially do not adhere to the CAR material in the absence of said peptides and wherein said one or more peptides lack an RGD sequence; (b) adding adherent liver cells in a growth-promoting culture medium to said composition; (c) allowing said liver cells to adhere to said composition; and (d) incubating said adherent liver cells in the culture medium for a selected period of time under conditions that support liver cell growth;
thereby growing said adherent liver cells. - View Dependent Claims (22, 23, 24)
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Specification