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Immortalization of epithelial cells and methods of use

  • US 9,951,315 B2
  • Filed: 02/10/2016
  • Issued: 04/24/2018
  • Est. Priority Date: 11/12/2010
  • Status: Active Grant
First Claim
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1. A method for continuously culturing non-keratinocyte epithelial cells, comprising:

  • (a) culturing non-keratinocyte epithelial (NKE) cells isolated from tissue of a mammal, or cells derived therefrom, in the presence of feeder cells or a medium conditioned with feeder cells; and

    a calcium-containing medium; and

    (b) inhibiting the activity of Rho kinase (ROCK) in the feeder cells, the NKE cells or both during the culturing, thereby generating a cell culture comprising a population of NKE cells, wherein;

    the cell culture does not include embryonic stem cells,the population of the NKE cells in the cell culture is capable of 60 or more population doublings, andthe NKE cells isolated from tissue of a mammal, or cells derived therefrom, not exposed to (a) and (b) are not capable of 60 population doublings.

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