Impaired postnatal hepatocyte proliferation and liver regeneration in mice lacking c-jun in the liver
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Impaired postnatal hepatocyte proliferation and liver regeneration in mice lacking c-jun in the liver. / Behrens, Axel; Sibilia, Maria; David, Jean-Pierre; Möhle-Steinlein, Uta; Tronche, François; Schütz, Günther; Wagner, Erwin F.
In: EMBO J, Vol. 21, No. 7, 02.04.2002, p. 1782-90.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - Impaired postnatal hepatocyte proliferation and liver regeneration in mice lacking c-jun in the liver
AU - Behrens, Axel
AU - Sibilia, Maria
AU - David, Jean-Pierre
AU - Möhle-Steinlein, Uta
AU - Tronche, François
AU - Schütz, Günther
AU - Wagner, Erwin F
PY - 2002/4/2
Y1 - 2002/4/2
N2 - Mice lacking the AP-1 transcription factor c-jun die at mid-gestation showing heart defects and impaired hepatogenesis. To inactivate c-jun in hepatocytes, mice carrying a floxed c-jun allele were generated. Perinatal liver-specific c-jun deletion caused reduced hepatocyte proliferation and decreased body size. After partial hepatectomy, half of the mutants died and liver regeneration was impaired. This phenotype was not present in mice lacking the N-terminal phosphorylation sites of c-Jun. The failure to regenerate was accompanied by increased cell death and lipid accumulation in hepatocytes. Moreover, cyclin-dependent kinases and several cell cycle regulators were affected, resulting in inefficient G(1)-S phase progression. These studies identify c-Jun as a critical regulator of hepatocyte proliferation and survival during liver development and regeneration.
AB - Mice lacking the AP-1 transcription factor c-jun die at mid-gestation showing heart defects and impaired hepatogenesis. To inactivate c-jun in hepatocytes, mice carrying a floxed c-jun allele were generated. Perinatal liver-specific c-jun deletion caused reduced hepatocyte proliferation and decreased body size. After partial hepatectomy, half of the mutants died and liver regeneration was impaired. This phenotype was not present in mice lacking the N-terminal phosphorylation sites of c-Jun. The failure to regenerate was accompanied by increased cell death and lipid accumulation in hepatocytes. Moreover, cyclin-dependent kinases and several cell cycle regulators were affected, resulting in inefficient G(1)-S phase progression. These studies identify c-Jun as a critical regulator of hepatocyte proliferation and survival during liver development and regeneration.
KW - Animals
KW - Cell Cycle
KW - Cell Division
KW - Female
KW - Hepatocytes
KW - Liver
KW - Liver Regeneration
KW - Male
KW - Mice
KW - Mice, Inbred C57BL
KW - Mutagenesis
KW - Proto-Oncogene Proteins c-jun
U2 - 10.1093/emboj/21.7.1782
DO - 10.1093/emboj/21.7.1782
M3 - SCORING: Journal article
C2 - 11927562
VL - 21
SP - 1782
EP - 1790
JO - EMBO J
JF - EMBO J
SN - 0261-4189
IS - 7
ER -