A population of isolated cells consisting of cells derived from liver tissue of a human being that are a. CD117 +, CD34 +, CD45- and Lin-; b. capable of proliferating in a crop and c. capable of differentiating in vivo in a hepatocyte, a cholangiocyte and a sinusoidal cell.Una población de células aisladas consistente en células derivadas de tejido hepático de un ser humano que son a. CD117+, CD34+, CD45- y Lin-; b. capaces de proliferar en un cultivo y c. capaces de diferenciarse in vivo en un hepatocito, un colangiocito y una célula sinusoidal.