Methods of derivation and propagation of undifferentiated human embryonic stem (HES) cells on feeder-free matrices and human feeder layers
First Claim
1. A human feeder cell layer which supports the derivation of ES cells in a substantially undifferentiated state said feeder cell layer comprising cells selected from the group including human adult, fetal or embryonic cells or a combination thereof.
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Abstract
The present invention relates to the field of stem cell culture, in particular undifferentiated stem cell culture and to methods for derivation and propagation of such cells. More particularly, the invention relates to derivation and propagation of undifferentiated HES cells on human feeder layers and/or in the absence of a feeder layer. The human feeder layers may be selected from the group including human fetal muscle (HFM), human fetal skin (HFS), human adult fallopian tube (HAFT) fibroblasts and human adult skin cells. They may be cultured in the presence of a suitable medium selected from the group including Human Embryonic Stem Cell (HES), Knockout (KO), or Human Feeder (HF) medium supplemented with or without human serum.
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Citations
79 Claims
- 1. A human feeder cell layer which supports the derivation of ES cells in a substantially undifferentiated state said feeder cell layer comprising cells selected from the group including human adult, fetal or embryonic cells or a combination thereof.
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2. A human feeder cell layer which supports the culture of ES cells in a substantially undifferentiated state said feeder cell layer comprising cells selected from the group including human adult, fetal or embryonic cells or a combination thereof.
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21. A method of deriving an embryonic stem (ES) cell line in a substantially undifferentiated state from an ES cell population said method comprising:
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obtaining an ES cell population comprising undifferentiated ES cells; and
culturing the undifferentiated ES cells on a cell support matrix in the presence of soluble factors derived from human feeder cells or equivalents thereof. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 54, 55)
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56. A cell culture system for deriving and culturing ES cells in a substantially undifferentiated state, said culture system including:
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a cell support matrix; and
a cell culture medium for providing soluble factors derived from a human feeder cell selected from the group including a human adult, fetal or embryonic cell. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 70, 71, 72, 74, 75)
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- 67. A cell culture system according to 56 wherein the human embryonic cell is a human embryonic muscle (HEM) or human embryonic skin cell or combination thereof.
Specification