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Phenotypes Associated with This Genotype
Genotype
MGI:5897214
Allelic
Composition
Tg(CMV-tTA)3Bjd/0
Tg(tetO-Prkar1a*x2as)1Stra/0
Genetic
Background
involves: C57BL/6 * NMRI * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(CMV-tTA)3Bjd mutation (1 available)
Tg(tetO-Prkar1a*x2as)1Stra mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice show decreased survival after 16 months of age, with most dying of metastatic lymphomas, histiocytic sarcomas or other proliferative disorders

growth/size/body
• 40% of mice develop thyroid follicular hyperplasia, adenomas, and cysts
• mice weigh less than controls up to 4 weeks of age but later show no weight differences until 6 months of age when they start to gain weight
• inguinal hernias due to accumulation of lower abdominal visceral fat
• mice continue to gain weight after 6 months of age and become heavier than controls by 14 months of age

adipose tissue
• weight gain is largely due to accumulation of lower abdominal visceral fat

neoplasm
• thyroid follicular adenoma (J:94953)
• 40% of mice develop thyroid follicular hyperplasia, adenomas, and cysts (J:95465)
• 4 of 44 mice develop liver tumors which include histiocytic sarcoma, hepatocellular adenoma, and round cell neoplasia
• 8 of 44 mice develop metastatic tumors which include spindle cell tumor, round cell tumor, squamous cell papilloma, and/or lymphoma
• lymphomas develop in primary lymphoid organs (thymus, spleen, lymph nodes, Peyers patches) and other tissues (liver and kidney)
• squamous cell papilloma
• skin squamous cell papilloma
• spindle cell, schwannomatous tumor

endocrine/exocrine glands
• 14 of 26 mice exhibit adrenal gland congestion, hyperplasia and/or X-zone hypertrophy
• mice develop adrenocortical abnormalities
• adrenal glands exhibit extra-epithelial pigment cells containing melanosomes that are in direct cellular contact with adrenocortical cells
• adrenal cortex exhibits congestion
• X-zone hypertrophy (J:94953)
• X zone hyperplasia is seen after puberty in males or after multiple pregnancies in females (J:95465)
• X zone persistence is seen after puberty in males or after multiple pregnancies in females
• adrenocortical cells show cytoplasm with ample smooth endoplasmic reticulum, an increased number of round mitochondria with tubulovesicular internal membranes that bridge the mitochondrial matrix, and reduced number of cholesterol storing liposomes
• adrenocortical cells have frequent and large pigment deposits and often other, vesicle-like structures
• cortical hyperplasia with pigment deposits and congestion are seen more frequently than in controls
• 12 of 30 mice exhibit thyroid follicular lesions, including follicular adenoma, follicular hyperplasia or ectasia, and colloid goiter (J:94953)
• 40% of mice develop thyroid follicular hyperplasia, adenomas, and cysts (J:95465)
• follicular hyperplasia of the thyroid and/or colloid goiter
• thyroid follicular adenoma (J:94953)
• 40% of mice develop thyroid follicular hyperplasia, adenomas, and cysts (J:95465)
• 40% of mice develop thyroid follicular hyperplasia, adenomas, and cysts
• 6 of 29 mice develop pancreatic inflammation or lymphoid infiltrate into the pancreas

homeostasis/metabolism
• mice exhibit higher corticosterone levels before, during and after administration of dexamethasone

integument
• skin squamous cell papilloma

immune system
• 6 of 29 mice develop pancreatic inflammation or lymphoid infiltrate into the pancreas
• 15 of 33 mice show lymph node histiocytic hyperplasia

nervous system
• spindle cell, schwannomatous tumor

liver/biliary system
• 4 of 44 mice develop liver tumors which include histiocytic sarcoma, hepatocellular adenoma, and round cell neoplasia

cellular
• X zone persistence is seen after puberty in males or after multiple pregnancies in females


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
12/10/2024
MGI 6.24
The Jackson Laboratory