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Phenotypes Associated with This Genotype
Genotype
MGI:5296508
Allelic
Composition
Ppt1tm1Hof/Ppt1tm1Hof
Genetic
Background
involves: 129P2/OlaHsd * 129S2/SvPas * 129S6/SvEvTac * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ppt1tm1Hof mutation (2 available); any Ppt1 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mutants die by 35 weeks of age, with a median survival of 33 weeks

nervous system
• mutants exhibit immune cell infiltration in the brain, with an increase in CD45+ leukocytes, CD3+ T-cells, and CD68+ large monocytes
• mutants exhibit a 2.6-fold increase in autofluorescent accumulation in the brain compared to wild-type mice
• decrease in brain weight by 13.4% is seen by 6 months of age
• atrophy of the primary visual cortex
• at 6 months of age, 21.6% decrease in cortical thickness
• by 5 months of age, brain atrophy is apparent
• reactive astrocytosis
• mutants exhibit progressive neurodegeneration, with degenerating neurons within the corpus callosum, hippocampus, and thalamus at 5 months of age

homeostasis/metabolism
• mutants exhibit elevated cytokine and chemokine levels at 3 months of age
• fewer cytokines and chemokines are elevated in single mutant mice than in triple Ppt1, Gfap and Vim homozygotes

immune system
• mutants exhibit elevated cytokine and chemokine levels at 3 months of age
• fewer cytokines and chemokines are elevated in single mutant mice than in triple Ppt1, Gfap and Vim homozygotes
• mutants exhibit immune cell infiltration in the brain, with an increase in CD45+ leukocytes, CD3+ T-cells, and CD68+ large monocytes

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
neuronal ceroid lipofuscinosis 1 DOID:0110721 OMIM:256730
J:177265


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
10/29/2024
MGI 6.24
The Jackson Laboratory