Isolated adult pluripotent stem cells and methods for isolating and cultivating thereof
First Claim
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1. A method of producing adult pluripotent stem cells from mammalian exocrine glandular tissue, wherein said exocrine glandular tissue is isolated from a salivary gland, lacrimal gland, sudoriferous gland or sebaceous gland, and wherein said pluripotent adult stem cells are—
- after culturing under spatial conditions which ensure three-dimensional contact of the cells—
capable of differentiating into cell types of all three germ layers in a culture medium that does not contain any additional growth factors or differentiation factors, the method comprising the following steps;
the exocrine glandular tissue is mechanically and enzymatically divided in such a manner that the cell structures in the resulting tissue fragments are largely preserved;
the divided tissue is cultured in an adherent culture;
the adherent cells persisting in the culture are further cultured and nonadherent differentiated cells are separated by a change of medium; and
adult pluripotent stem cells are obtained from the culture.
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Abstract
This invention relates to isolated pluripotent adult stem cells which are obtained from exocrine glandular tissue as well as methods of isolating and culturing these pluripotent stem cells.
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6 Claims
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1. A method of producing adult pluripotent stem cells from mammalian exocrine glandular tissue, wherein said exocrine glandular tissue is isolated from a salivary gland, lacrimal gland, sudoriferous gland or sebaceous gland, and wherein said pluripotent adult stem cells are—
- after culturing under spatial conditions which ensure three-dimensional contact of the cells—
capable of differentiating into cell types of all three germ layers in a culture medium that does not contain any additional growth factors or differentiation factors, the method comprising the following steps;the exocrine glandular tissue is mechanically and enzymatically divided in such a manner that the cell structures in the resulting tissue fragments are largely preserved; the divided tissue is cultured in an adherent culture; the adherent cells persisting in the culture are further cultured and nonadherent differentiated cells are separated by a change of medium; and adult pluripotent stem cells are obtained from the culture. - View Dependent Claims (2, 3, 4, 5, 6)
- after culturing under spatial conditions which ensure three-dimensional contact of the cells—
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