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Phenotypes Associated with This Genotype
Genotype
MGI:5467595
Allelic
Composition
Pou4f3tm1.1(HBEGF)Jsto/Pou4f3+
Genetic
Background
either: (involves: 129S4/SvJaeSor * C57BL/6) or (involves: 129S4/SvJaeSor * CBA/J)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pou4f3tm1.1(HBEGF)Jsto mutation (1 available); any Pou4f3 mutation (25 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• some diphtheria toxin-treated mice must be euthanized due to sustained vestibulomotor problems and weight loss

hearing/vestibular/ear
• fragmented 7 days after diphtheria toxin treatment
• replacement hair cells in diphtheria toxin-treated mice have short stereociliary bundles, multipolar shapes and innervation characteristic of type II hair cells
• in diphtheria toxin-treated mice
• a higher doses does not increase hair cell loss
• however, mice exhibit some hair cell replacement in the lateral extrastriolar region of the utricle with neural elements
• disorganized 7 days after diphtheria toxin treatment
• after 14 days of diphtheria toxin treatment, remaining hair cells exhibit either a long bundle of stereocilia, a very short bundle or no bundle concentrated in the presumed lateral extrastriolar region
• replacement hair cells in diphtheria toxin-treated mice have short stereociliary bundles, multipolar shapes and innervation characteristic of type II hair cells
• expansion of supporting cells 7 days after diphtheria toxin treatment with occupation of most of the sensory epithelium after 14 days of diphtheria toxin treatment
• supporting cell densities decline as hair cells are replaced in diphtheria toxin-treated mice
• supporting cells are converted directly into hair cells in diphtheria toxin-treated mice and are not being rapidly replaced by supporting cell division following diphtheria toxin-mediated hair cell damage
• at 3 and 7 days post-diphtheria toxin treatment, mice exhibit vestibulomotor dysfunction that persists as late as 180 days post treatment

behavior/neurological
• at 3 and 7 days post-diphtheria toxin treatment, mice exhibit vestibulomotor dysfunction that persists as late as 180 days post treatment
• at 3 and 7 days post-diphtheria toxin treatment
• however, symptoms are improved by assistance of fluid injections and high calorie food supplementation
• staggering gait at 3 and 7 days post-diphtheria toxin treatment
• however, symptoms are improved by assistance of fluid injections and high calorie food supplementation
• at 3 and 7 days post-diphtheria toxin treatment
• however, symptoms are improved by assistance of fluid injections and high calorie food supplementation

growth/size/body
• at 3 and 7 days post-diphtheria toxin treatment
• however, symptoms are improved by assistance of fluid injections and high calorie food supplementation

nervous system
• fragmented 7 days after diphtheria toxin treatment
• replacement hair cells in diphtheria toxin-treated mice have short stereociliary bundles, multipolar shapes and innervation characteristic of type II hair cells
• in diphtheria toxin-treated mice
• a higher doses does not increase hair cell loss
• however, mice exhibit some hair cell replacement in the lateral extrastriolar region of the utricle with neural elements
• disorganized 7 days after diphtheria toxin treatment
• after 14 days of diphtheria toxin treatment, remaining hair cells exhibit either a long bundle of stereocilia, a very short bundle or no bundle concentrated in the presumed lateral extrastriolar region
• replacement hair cells in diphtheria toxin-treated mice have short stereociliary bundles, multipolar shapes and innervation characteristic of type II hair cells


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
04/30/2024
MGI 6.23
The Jackson Laboratory