Derivation of neural stem cells from embryonic stem cells
First Claim
1. A method of deriving a homogeneous population of human neural stem cells (NSCs) comprising the steps of:
- (a) culturing human embryonic stem cells (ESCs) as spheres in serum-free media comprising epidermal growth factor (EGF), basic fibroblast growth factor (bFGF), and leukemia inhibitory factor (LIF);
(b) selecting and plating the spheres in a cell culture container in serum-free media comprising EGF, bFGF, and LIF until the spheres attach to the container and the cells form clusters; and
(c) selecting and plating the clusters for a number of passages sufficient to change the adherent properties of the cells, wherein the cells grow as an adherent monolayer of nestin positive, homogenous, self-renewing cells.
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Abstract
Provided is a method for the derivation of neural stem cells (NSCs) from embryonic stem cells (ESCs) and the use of the NSCs for treatment of various neural disorders. The NSCs that are derived from the ESCs are tissue-specific multipotent NSCs with a stable growth rate, unlimited self-renewal capacity, and a predictable differentiation profile. Being both non-tumorigenic and engraftable, the NSCs of the present invention have utility in repopulation stroke-damaged tissue. The NSCs of the present invention may be differentiated to produce tyrosine-hydroxylase expressing neurons, which may be used as a source of dopaminergic neurons for subjects suffering from a condition characterized by dopaminergic dysfunction, such as Parkinson'"'"'s disease.
18 Citations
17 Claims
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1. A method of deriving a homogeneous population of human neural stem cells (NSCs) comprising the steps of:
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(a) culturing human embryonic stem cells (ESCs) as spheres in serum-free media comprising epidermal growth factor (EGF), basic fibroblast growth factor (bFGF), and leukemia inhibitory factor (LIF); (b) selecting and plating the spheres in a cell culture container in serum-free media comprising EGF, bFGF, and LIF until the spheres attach to the container and the cells form clusters; and (c) selecting and plating the clusters for a number of passages sufficient to change the adherent properties of the cells, wherein the cells grow as an adherent monolayer of nestin positive, homogenous, self-renewing cells. - View Dependent Claims (16)
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2. A method of deriving a homogeneous population of human neural stem cells (NSCs) from embryonic stem cells (ESCs) comprising the steps of:
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(a) culturing an ESC line in serum-free media comprising epidermal growth factor (EGF), basic fibroblast growth factor (bFGF), and leukemia inhibitory factor (LIF) until spheres (primary spheres) form in the media; (b) selecting and plating the primary spheres in a cell culture container in serum-free media comprising EGF, bFGF, and LIF until the spheres attach to the container and the ESCs form clusters; (c) removing the clusters from the culture container and replanting the clusters as secondary spheres in a container with serum-free media comprising EGF, bFGF, and LIF, wherein the secondary spheres attach to the container; and (d) repeating step (c) for a number of passages sufficient to change the adherent properties of the cells, wherein the cells grow as an adherent monolayer of nestin positive, homogenous, self-renewing cells. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17)
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Specification