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Phenotypes Associated with This Genotype
Genotype
MGI:3716591
Allelic
Composition
Usp8tm1.1Kpk/Usp8tm1.1Kpk
Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(Mx1-cre)1Cgn mutation (10 available)
Usp8tm1.1Kpk mutation (0 available); any Usp8 mutation (50 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• 4-6 days after induction of cre expression with pI:pC (poly(I:C)), mice become moribund and die

liver/biliary system
• 4 days after pI:pC administration, apoptotic hepatocytes are observed around the central vein; extended sinoids and apoptotic figures are seen
• on day 6, apoptotic figures and ubiquitous degeneration of hepatocytes over all zones of hepatic lobules are observed
• 4 days after treatment, immature hepatocytes around the portal field display swelling and are vacuolized
• on day 7 after treatment, lytic necrosis is observed over all hepatic lobules
• upon induction of cre expression with pI:pC treatment, mice develop severe jaundice
• treated mice show severe liver injury within 4-6 days of pI:pC treatment manifested by high levels of hepatocyte apoptosis and tissue necrosis

homeostasis/metabolism
• after cre induction, treated mice exhibit hyperbilirubinemia

cellular
• 4 days after pI:pC administration, apoptotic hepatocytes are observed around the central vein; extended sinoids and apoptotic figures are seen
• on day 6, apoptotic figures and ubiquitous degeneration of hepatocytes over all zones of hepatic lobules are observed


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
01/06/2026
MGI 6.24
The Jackson Laboratory