The invention belongs to the technical field of
biology, and discloses application of Prc1 in analysis of liver
cell ploidy,
liver regeneration capacity and
liver function and construction of a liver
cell proliferation inhibition or liver surface
dysplasia animal model. Specifically, the expression level of Prc1 is negatively correlated with the
ploidy of liver cells, is positively correlated with the
liver regeneration capacity after
liver injury, and is positively correlated with the
liver function of a liver
cirrhosis patient. In addition, the invention provides an
animal model of which Prc1 expression is specifically knocked out of hepatocytes to change the
ploidy of the hepatocytes and inhibit proliferation when the hepatocytes are damaged, and an
animal model of which
atypical hyperplasia appears on the surface of the liver when the hepatocytes are damaged by CCl4, and the like. According to the present invention, the Prc1 is the key
gene for regulating and controlling the liver
cell ploidy, and the
abnormal cell nucleus is accumulated through
DNA damage accumulation,
mitosis metaphase retardation, sister
dyeing monomer separation failure and the like after the Prc1 is specifically knocked out from the liver cell, such that the liver cell ploidy is increased, and the
liver regeneration ability and the
liver function after the
liver injury are affected; and a new target spot and a new model tool are provided for liver regeneration regulation and control.