Pluripotent embryonic-like stem cells, compositions, methods and uses thereof
First Claim
1. A pluripotent embryonic-like stem cell, derived from non-embryonic or postnatal animal cells or tissue, capable of self-renewal and capable of differentiation to cells of endodermal, ectodermal and mesodermal lineages.
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Accused Products
Abstract
The present invention relates to pluripotent stem cells, particularly to pluripotent embryonic-like stem cells. The invention further relates to methods of purifying pluripotent embryonic-like stem cells and to compositions, cultures and clones thereof. The present invention also relates to a method of transplanting the pluripotent stem cells of the present invention in a mammalian host, such as human, comprising introducing the stem cells, into the host. The invention further relates to methods of in vivo administration of a protein or gene of interest comprising transfecting a pluripotent stem cell with a construct comprising DNA which encodes a protein of interest and then introducing the stem cell into the host where the protein or gene of interest is expressed. The present also relates to methods of producing mesodermal, endodermal or ectodermal lineage-committed cells by culturing or transplantation of the pluripotent stem cells of the present invention.
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Citations
32 Claims
- 1. A pluripotent embryonic-like stem cell, derived from non-embryonic or postnatal animal cells or tissue, capable of self-renewal and capable of differentiation to cells of endodermal, ectodermal and mesodermal lineages.
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8. A culture comprising:
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(a) Pluripotent embryonic-like stem cells, derived from postnatal animal cells or tissue, capable of self-renewal and capable of differentiation to cells of endodermal, ectodermal and mesodermal lineages; and
(b) a medium capable of supporting the proliferation of said stem cells. - View Dependent Claims (9, 10)
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11. A method of isolating an pluripotent embryonic-like stem cell, comprising the steps of:
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(a) obtaining cells from a postnatal animal source;
(b) slow freezing said cells in medium containing 7.5% (v/v) dimethyl sulfoxide until a final temperature of −
80°
C. is reached; and
(c) culturing the cells.
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12. A method of isolating a clonal pluripotent embryonic-like stem cell line, comprising the steps of:
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(a) obtaining cells from a postnatal animal source;
(b) slow freezing said cells in medium containing 7.5% (v/v) dimethyl sulfoxide until a final temperature of −
80°
C. is reached;
(c) culturing the cells;
(d) diluting said cultured cells to clonal density;
(e) culturing said diluted cells;
(e) propogating those cultures having a single cell. - View Dependent Claims (13)
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15. A method of producing a genetically engineered pluripotent embryonic-likestem cell comprising the steps of:
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(a) transfecting pluripotent embryonic-like stem cells with a DNA construct comprising at least one of a marker gene or a gene of interest;
(b) selecting for expression of the marker gene or gene of interest in the pluripotent embryonic-like stem cells;
(c) culturing the stem cells selected in (b). - View Dependent Claims (16, 17)
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27. A method of preventing and/or treating cellular debilitations, derangements and/or dysfunctions and/or other disease states in mammals, comprising administering to a mammal a therapeutically effective amount of pluripotent embryonic-like stem cells, or cells or tissues derived therefrom.
- 28. A method of tissue repair or transplantation in mammals, comprising administering to a-mammal a therapeutically effective amount of pluripotent embryonic-like stem cells, or cells or tissues derived therefrom.
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31. A pharmaceutical composition for the treatment of cellular debilitation, derangement and/or dysfunction in mammals, comprising:
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A. a therapeutically effective amount of pluripotent embryonic-like stem cells, or cells or tissues derived therefrom; and
B. a pharmaceutically acceptable medium or carrier.
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Specification