Method of producing an avian embryonic stem cell culture and the avian embryonic stem cell culture produced by the process
First Claim
1. A method of producing a sustained culture of undifferentiated avian cells expressing an embryonic stem cell phenotype, comprising:
- collecting avian cells from an avian blastoderm prior to formation of the primitive streak;
depositing said avian cells in contact with a mouse fibroblast feeder cell layer;
growing said avian cells on said mouse fibroblast feeder cell layer in the presence of a media containing leukemia inhibitory factor in a differentiation-inhibiting amount for a time sufficient to produce a sustained avian cell culture;
said sustained avian cell culture consisting essentially of undifferentiated avian cells expressing an embryonic stem cell phenotype.
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Abstract
A method of producing undifferentiated avian cells expressing an embryonic stem cell phenotype is disclosed. The method comprises collecting avian cells from an avian blastoderm prior to formation of the primitive streak, then depositing the avian cells in contact with a mouse fibroblast feeder cell layer, and then growing the avian cells on the mouse fibroblast feeder cell layer in the presence of a media containing leukemia inhibitory factor in a differentiation-inhibiting amount for a time sufficient to produce a sustained avian cell culture. Cell cultures produced by the aforesaid process and veterinary pharmaceutical formulations containing such cells are also disclosed.
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Citations
10 Claims
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1. A method of producing a sustained culture of undifferentiated avian cells expressing an embryonic stem cell phenotype, comprising:
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collecting avian cells from an avian blastoderm prior to formation of the primitive streak; depositing said avian cells in contact with a mouse fibroblast feeder cell layer; growing said avian cells on said mouse fibroblast feeder cell layer in the presence of a media containing leukemia inhibitory factor in a differentiation-inhibiting amount for a time sufficient to produce a sustained avian cell culture; said sustained avian cell culture consisting essentially of undifferentiated avian cells expressing an embryonic stem cell phenotype. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of producing a sustained culture of undifferentiated chicken cells expressing an embryonic stem cell phenotype, comprising:
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collecting avian cells from the area pellucida of a stage IX to stage XIV chicken blastoderm; depositing said avian cells on contact with a mouse STO fibroblast feed cell layer; growing said avian cells on said mouse fibroblast feeder cell layer in the presence of a conditioned media containing leukemia inhibitory factor in a differentiation-inhibiting amount of a time sufficient to produce a sustained avian cell culture; said sustained avian cell culture consisting essentially of undifferentiated avian cells expressing an embryonic stem cell phenotype, and wherein said undifferentiated avian cells are capable of maintaining said stem cell phenotype when grown on said mouse fibroblast feeder layer in the presence of said media for at least three days. - View Dependent Claims (10)
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Specification