Phenotypes associated with this allele
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Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
E4f1tm1Pisc mutation
(1 available);
any
E4f1 mutation
(38 available)
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mortality/aging
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• mutant embryos die around E5.5
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cellular
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• cells arrest at the prometaphase of mitosis
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• after 24 hours in culture mutant embryos collected at E3.5 display increased apoptosis compared to wild-type embryos
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embryo
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• at E5.5 no layer organization is detectable
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• at E4.5 embryos are severely growth retarded
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growth/size/body
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• at E4.5 embryos are severely growth retarded
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integument
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• development of hyperkeratosis following 4-hydroxytamoxifen treatment is reduced and delayed compared to mutant mice wild-type for Cdkn2a
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• development of hyperplasia following 4-hydroxytamoxifen treatment is reduced and delayed compared to mutant mice wild-type for Cdkn2a
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• partial restoration in long term outgrowth of 4-hydroxytamoxifen exposed keratinocytes in culture compared to mutant mice wild-type for Cdkn2a
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mortality/aging
homeostasis/metabolism
integument
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• in skin grafted onto nude mice
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• epidermal hypocellularity develops in skin grafted onto nude mice
• fewer epidermal stem cells are present
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• develops in skin grafted onto nude mice
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• develops by P3 - P4
• no abnormal cell death is seen in these lesions
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• hyperproliferation and increased mitotic index in epidermal basal cells
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• after 10 - 15 days in culture keratinocytes fail to develop typical holoclones (corresponding to long term clonal outgrowth of epidermal stem cells)
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homeostasis/metabolism
integument
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• topical application of 4-hydroxytamoxifen to the unshaved tail results in complete alopecia by 6 weeks after application
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• fewer hair follicle bulges are detected 4 - 6 weeks after topical application of 4-hydroxytamoxifen
• at 2 - 3 weeks after topical application of 4-hydroxytamoxifen the long term retaining cell region is expanded but by 6 weeks after application long term retaining cells appear to be lost
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• broad disorganization of the interfollicular epithelium develops by 3 - 4 weeks after topical application of 4-hydroxytamoxifen
• hyperkeratosis is associated with loss of cellularity in the interfollicular epithelium
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• develops by 3 - 4 weeks after topical application of 4-hydroxytamoxifen
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• after topical application of 4-hydroxytamoxifen
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• after topical application of 4-hydroxytamoxifen
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• massive hyperplasia with increased cellularity in the interfollicular epithelium and the infundibulum in the first few weeks after topical application of 4-hydroxytamoxifen
• no abnormal cell death is seen in these lesions
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• by 2 - 4 weeks after topical application of 4-hydroxytamoxifen, severe skin ulcerative lesions develop
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• between 1 - 2 weeks after topical application of 4-hydroxytamoxifen, back skin is ruffled and wrinkled
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• between 1 - 2 weeks after topical application of 4-hydroxytamoxifen, back skin is thickened
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• increase in the proportion of proliferating epidermal cells in the first few weeks after topical application of 4-hydroxytamoxifen
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• after 10 - 15 days in culture keratinocytes from 4-hydroxytamoxifen treated skin fail to develop typical holoclones (corresponding to long term clonal outgrowth of epidermal stem cells)
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