Derivation of embryonic stem cells and embryo-derived cells
First Claim
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1. An in vitro method of producing embryonic stem (ES) cells from a blastomere, comprising:
- (a) providing an isolated mammalian blastomere;
(b) culturing the isolated blastomere in the presence of E-cadherin and(i) pluripotent cells, and/or(ii) fibronectin, tenascin, elastin, laminin, vitronectin, syndecan, or proteoglycan, or a combination thereof,until said blastomere gives rise to a cluster of progeny cells; and
(c) transferring the cluster of progeny cells to ES cell medium and culturing the cluster of progeny cells therein to form a culture of mammalian ES cells from the cluster of progeny cells.
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Abstract
This present invention provides novel methods for deriving embryonic stem cells and embryo-derived cells from an embryo without requiring destruction of the embryo. The invention further provides cells and cell lines derived without embryo destruction, and the use of the cells for therapeutic and research purposes. It also relates to novel methods of establishing and storing an autologous stem cell line prior to implantation of an embryo, e.g., in conjunction with reproductive therapies such as IVF.
27 Citations
12 Claims
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1. An in vitro method of producing embryonic stem (ES) cells from a blastomere, comprising:
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(a) providing an isolated mammalian blastomere; (b) culturing the isolated blastomere in the presence of E-cadherin and (i) pluripotent cells, and/or (ii) fibronectin, tenascin, elastin, laminin, vitronectin, syndecan, or proteoglycan, or a combination thereof, until said blastomere gives rise to a cluster of progeny cells; and (c) transferring the cluster of progeny cells to ES cell medium and culturing the cluster of progeny cells therein to form a culture of mammalian ES cells from the cluster of progeny cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An in vitro method of producing embryonic stem (ES) cells from a blastomere, comprising:
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(a) providing an isolated mammalian blastomere; (b) culturing the isolated blastomere in the presence of E-cadherin with or without pluripotent cells until said blastomere gives rise to a cluster of progeny cells; and (c) transferring the cluster of progeny cells to ES cell medium and culturing the cluster of progeny cells therein to form a culture of mammalian ES cells from the cluster of progeny cells. - View Dependent Claims (10)
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11. An in vitro method of producing embryonic stem (ES) cells from a blastomere, comprising:
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(a) providing an isolated mammalian blastomere; (b) culturing the isolated blastomere in a medium containing less than 5 mM glucose in the presence of (i) pluripotent cells and/or (ii) an extracellular matrix component comprising fibronectin, tenascin, elastin, laminin, vitronectin, syndecan, or proteoglycan, or a combination thereof, until said blastomere gives rise to a cluster of progeny cells; and (c) transferring the cluster of progeny cells to ES cell medium and culturing the cluster of progeny cells therein to form a culture of mammalian ES cells from the cluster of progeny cells.
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12. An in vitro method of producing embryonic stem (ES) cells from a blastomere, comprising:
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(a) providing an isolated mammalian blastomere; (b) culturing the isolated blastomere in the presence of (i) pluripotent cells and/or (ii) an extracellular matrix component comprising fibronectin, tenascin, elastin, laminin, vitronectin, syndecan, or proteoglycan, or a combination thereof, until said blastomere gives rise to a cluster of progeny cells; and (c) transferring the cluster of progeny cells to ES cell medium and culturing the cluster of progeny cells therein to form a culture of mammalian ES cells from the cluster of progeny cells, wherein the blastomere and/or the cluster of progeny cells are cultured in a medium containing less than 5 mM glucose and having an osmolarity of less than 310 mOsm/kg.
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Specification