About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:2662287
Allelic
Composition
\Inhatm1Bay/\Inhatm1Bay
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Inhatm1Bay mutation (0 available); any Inha mutation (9 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Liver and stomach histology of Inhatm1Bay/Inhatm1Bay mice

neoplasm
• gonadectomy causes adrenal tumorigenesis which is dependent on the chronically elevated gonadotropin levels that result from this manipulation (J:125349)
• adrenal tumors originate in the subcapsular stem/progenitor zone of the adrenal cortex where upon gonadectomy cells express markers indistinguishable from tumorigenic granulose cells from the ovaries (J:125349)
• the 50% survival rate of female mice with gonadectomies is 22 weeks with all mice dying of extensive adrenal tumor burden (J:125349)
• derived from the adrenal cortex and observed in 99% of gonadectomized mice (J:20450)
• gonadal stromal tumors, developing around 4 weeks of age with 100% penetrance in both males and females
• ovary tumors result from uncontrolled proliferation by granulosa cells (J:125349)
• continuously expanding clusters of tumor cells in the ovary ablate normal ovarian architecture by 2 months of age (J:125349)
• these tumorigenic granulosa cells contain high levels of phosphorylated Smad3 (J:125349)
• ovarian tumors were either mixed or incompletely differentiated gonadal stromal tumors and either bilateral or unilateral (J:3315)
• histological analysis indicates the presence of large, hemorrhagic tumors that lie adjacent to remnants of seminiferous tubules
• testicular tumors result from uncontrolled proliferation of Sertoli cells
• these tumorigenic Sertoli cells contain high levels of phosphorylated Smad3

cellular
• massive proliferation of Sertoli cells progresses to testicular tumors by 2 months of age

digestive/alimentary system
• mucosal atrophy in the glandular stomach

reproductive system
• hemorrhaging evident at 7 to 16 weeks of age
• massive proliferation of Sertoli cells progresses to testicular tumors by 2 months of age
• disruption of the follicular architecture by the gonadal tumors
• ovaries weigh 100 times as much as littermate controls at 2 months of age
• testicular enlargement and hemorrhaging were evident at 5 weeks of age
• testis weight 3- to 5- fold more than normal testis by 2 months of age due to the large mass of testicular tumors
• gonadal stromal tumors, developing around 4 weeks of age with 100% penetrance in both males and females
• ovary tumors result from uncontrolled proliferation by granulosa cells (J:125349)
• continuously expanding clusters of tumor cells in the ovary ablate normal ovarian architecture by 2 months of age (J:125349)
• these tumorigenic granulosa cells contain high levels of phosphorylated Smad3 (J:125349)
• ovarian tumors were either mixed or incompletely differentiated gonadal stromal tumors and either bilateral or unilateral (J:3315)
• histological analysis indicates the presence of large, hemorrhagic tumors that lie adjacent to remnants of seminiferous tubules
• testicular tumors result from uncontrolled proliferation of Sertoli cells
• these tumorigenic Sertoli cells contain high levels of phosphorylated Smad3
• although spermatogenesis was initially active and observed to be normal between 5 and 7 weeks of age, regression began with the enlargement of testcular tumors

homeostasis/metabolism
• increased FSH levels in adolescent and older male and female mice

hematopoietic system
• developing between 7 and 12 weeks of age
• not observed in animals that had a gonadectomy prior to 6 weeks of age
• observed in examined mice and believed to be contributing to the cachexia

growth/size/body
• ovaries weigh 100 times as much as littermate controls at 2 months of age
• beginning after 6 to 7 weeks of age
• gonadectomy prior to 6 weeks of age prevented severe weight loss in both males and females

skeleton
• becoming severe as weight loss progresses

liver/biliary system
• foci of chronic lymphocytic inflammation
• uniformly micronodular
• liver abnormalities were observed in gonadectomized mice as well
• necrosis around the central vein

immune system
• foci of chronic lymphocytic inflammation

endocrine/exocrine glands
• hemorrhaging evident at 7 to 16 weeks of age
• massive proliferation of Sertoli cells progresses to testicular tumors by 2 months of age
• gonadectomy causes adrenal tumorigenesis which is dependent on the chronically elevated gonadotropin levels that result from this manipulation (J:125349)
• adrenal tumors originate in the subcapsular stem/progenitor zone of the adrenal cortex where upon gonadectomy cells express markers indistinguishable from tumorigenic granulose cells from the ovaries (J:125349)
• the 50% survival rate of female mice with gonadectomies is 22 weeks with all mice dying of extensive adrenal tumor burden (J:125349)
• derived from the adrenal cortex and observed in 99% of gonadectomized mice (J:20450)
• disruption of the follicular architecture by the gonadal tumors
• ovaries weigh 100 times as much as littermate controls at 2 months of age
• ovary tumors result from uncontrolled proliferation by granulosa cells (J:125349)
• continuously expanding clusters of tumor cells in the ovary ablate normal ovarian architecture by 2 months of age (J:125349)
• these tumorigenic granulosa cells contain high levels of phosphorylated Smad3 (J:125349)
• ovarian tumors were either mixed or incompletely differentiated gonadal stromal tumors and either bilateral or unilateral (J:3315)
• testicular enlargement and hemorrhaging were evident at 5 weeks of age
• testis weight 3- to 5- fold more than normal testis by 2 months of age due to the large mass of testicular tumors
• histological analysis indicates the presence of large, hemorrhagic tumors that lie adjacent to remnants of seminiferous tubules
• testicular tumors result from uncontrolled proliferation of Sertoli cells
• these tumorigenic Sertoli cells contain high levels of phosphorylated Smad3

cardiovascular system
• hemorrhaging evident at 7 to 16 weeks of age


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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
03/25/2025
MGI 6.24
The Jackson Laboratory