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Phenotypes Associated with This Genotype
Genotype
MGI:5697628
Allelic
Composition
Pdpk1tm1.1Mlw/Pdpk1tm1.1Mlw
Tnfrsf4tm2(cre)Nik/Tnfrsf4+
Gt(ROSA)26Sortm1(EYFP)Cos/Gt(ROSA)26Sor+
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(EYFP)Cos mutation (24 available); any Gt(ROSA)26Sor mutation (1243 available)
Pdpk1tm1.1Mlw mutation (0 available); any Pdpk1 mutation (141 available)
Tnfrsf4tm2(cre)Nik mutation (1 available); any Tnfrsf4 mutation (27 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
• mice develop a wasting syndrome and succumb to disease by 11 weeks of age

growth/size/body
• mice develop an enlarged spleen

integument
• loss of hypodermal fat
• marker analysis indicates impaired keratinocyte differentiation
• mice with advanced disease show loss of skin barrier integrity at 7-8 weeks of age
• mice develop severe, systemic dermatitis starting at 5 weeks of age
• inflammation is not seen in the lung, liver, kidney or gut
• dermatitis is accompanied by hair loss
• loss of hair follicles
• mild epidermal hyperplasia and microabsceess are seen at 3 weeks of age but not at 10 days of age
• skin contains epidermal scales
• skin of mice with advanced disease contains lesions with epidermal damage, resulting in loss of skin barrier integrity
• dermatitis is accompanied by skin thickening
• increase in dermal fibrosis

immune system
• mice develop an enlarged spleen
• decrease in the frequency of Foxp3+ CD25+ Tregs with a corresponding increase in Foxp3-CD25+ effector T cells
• CD4 T cells exhibit an activated phenotype
• mice develop systemic T helper type 2 immunity
• mice develop peripheral lymphadenopathy
• mice develop severe, systemic dermatitis starting at 5 weeks of age
• inflammation is not seen in the lung, liver, kidney or gut

homeostasis/metabolism
• mice with advanced disease show loss of skin barrier integrity at 7-8 weeks of age

hematopoietic system
• mice develop an enlarged spleen
• decrease in the frequency of Foxp3+ CD25+ Tregs with a corresponding increase in Foxp3-CD25+ effector T cells
• CD4 T cells exhibit an activated phenotype
• mice develop systemic T helper type 2 immunity

cellular
• marker analysis indicates impaired keratinocyte differentiation

adipose tissue
• loss of hypodermal fat


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
10/06/2026
MGI 6.29
The Jackson Laboratory