Isolation and culture of porcine hepatocytes
First Claim
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1. An isolated sample of primary porcine hepatocytes, comprising at least 9% pericentral cells, wherein said cells retain metabolic activity for at least 24 hours in vitro.
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Abstract
A perfusion device such as a liver assist device containing a housing defining a perfusion inlet and a perfusion outlet, a porous membrane structure mounted within said housing to define a perfusion compartment and an adjacent hepatocyte compartment, and porcine hepatocytes isolated from a porcine liver by retrograde perfusion.
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Citations
26 Claims
- 1. An isolated sample of primary porcine hepatocytes, comprising at least 9% pericentral cells, wherein said cells retain metabolic activity for at least 24 hours in vitro.
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5. A method of isolating a sample of primary porcine hepatocytes enriched for pericentral cells, comprising
(a) providing a pig; -
(b) perfusing a liver from said pig in a retrograde manner with a solution that is free of digitonin; (c) removing said liver from said pig; (d) retrieving said hepatocytes from said liver; and (e) separating said hepatocytes from cellular debris and non-parenchymal cells to yield said sample of hepatocytes, said sample comprising at least 9% pericentral cells, wherein said hepatocytes retain metabolic activity for at least 24 hours in vitro. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A method of enhancing viability and metabolic activity of porcine hepatocytes in vitro comprising:
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(a) providing a sample of porcine hepatocytes in a suspension of particles; and (b) culturing said suspension in a roller bottle, wherein said hepatocytes and said particles form aggregates which adhere to the wall of said roller bottle and wherein said hepatocytes proliferate for at least 24 hours of in vitro culture and are at least 2 times more metabolically active than a second sample of porcine hepatocytes cultured in a monolayer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification