Immortalized fibroblasts
First Claim
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1. A composition comprising an immortalized fibroblast cell line established from a mouse embryo less than 15 days old and immortalized by serial passages.
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Abstract
Aspects of the invention provide an immortalized fibroblast cell line capable of the growth and maintenance of human embryonic stem cells. An immortalized fibroblast cell line derived from an early stage mouse embryo is provided. Methods of preparing an immortalized fibroblast cell line from an early stage mouse embryo are also provided.
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Citations
20 Claims
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1. A composition comprising
an immortalized fibroblast cell line established from a mouse embryo less than 15 days old and immortalized by serial passages.
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7. A method for preparing an immortalized fibroblast cell line comprising
providing cells from a mouse embryo less than 15 days old; - and
passaging the cells serially to produce an immortalized fibroblast cell line. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A composition comprising
an immortalized fibroblast cell line that when in a confluent layer, supports the growth and maintenance of Oct4 positive H9 human embryonic stem cells that are substantially free of dome-shaped cells.
Specification