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Phenotypes Associated with This Genotype
Genotype
MGI:3798180
Allelic
Composition
Esr1tm1Geog/Esr1tm1Geog
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Esr1tm1Geog mutation (0 available); any Esr1 mutation (67 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• granulosa cells do not encapsulate into follicles
• female mice have more antral follicles than in wild-type mice; theca cells are hyperplastic
• 89% of mice develop hemorrhagic cysts from atretic antral follicles
• theca cells are hyperplastic
• 89% of mice develop hemorrhagic cysts from atretic antral follicles
• uterine tissues are hypoplastic and lacks edematous stroma
• at 12 weeks of age
• vaginal tissues are hypoplastic and lack cornification
• female mice are anovulatory

homeostasis/metabolism
• unlike in wild-type mice, IGF-I treatment induces irregular uterine epithelial proliferation
• postnatal treatment with propyl pyrazole triol fails to rescue mammary gland ductal growth
• unlike in wild-type mice, moderate diethylstilbestrol treatment fails to induce a uterine response
• however, mice respond normally to a high dose of diethylstilbestrol and propyl pyrazole triol treatment of adult females induces uterine and mammary gland ductal growth

growth/size/body
• 89% of mice develop hemorrhagic cysts from atretic antral follicles
• in female mice
• at 12 and 20 weeks of age female mice weight 19% and 33% more than wild-type mice

adipose tissue
• at 20 weeks of age, gonadal fat pads in female mice are 35% larger than in wild-type mice
• at 20 weeks of age, mammary fat pads in female mice are 43% larger than in wild-type mice

endocrine/exocrine glands
• granulosa cells do not encapsulate into follicles
• mammary glands fail to develop beyond a rudimentary epithelial ductal tree
• female mice have more antral follicles than in wild-type mice; theca cells are hyperplastic
• 89% of mice develop hemorrhagic cysts from atretic antral follicles
• theca cells are hyperplastic
• 89% of mice develop hemorrhagic cysts from atretic antral follicles

integument
• mammary glands fail to develop beyond a rudimentary epithelial ductal tree

cellular
• granulosa cells do not encapsulate into follicles


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
04/16/2024
MGI 6.23
The Jackson Laboratory