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Phenotypes Associated with This Genotype
Genotype
MGI:4847601
Allelic
Composition
Gt(ROSA)26Sortm1(cre/ERT)Nat/Gt(ROSA)26Sor+
Ptentm1Hwu/Ptentm1Hwu
Genetic
Background
involves: 129 * 129S4/SvJae * BALB/c * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(cre/ERT)Nat mutation (3 available); any Gt(ROSA)26Sor mutation (1062 available)
Ptentm1Hwu mutation (17 available); any Pten mutation (86 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most females that develop lymphomas die at about 9 weeks post-4OHT injection
• all mutants die from tumor burden by 45 weeks post-4OHT injection

neoplasm
• treatment of mice with 4OHT at 6 weeks of age to induce cre-mediated recombination results in tumor formation with a mean latency of 17 weeks
• multiple tumors are seen in 27.3% of 4OHT-treated mice
• 46.1% of females develop endometrial cancer after 4OHT treatment
• 35% of males develop intestinal cancer after 4OHT treatment, arising from the colorectum and small intestine
• 76.9% incidence of lymphomas in females after 4OHT treatment
• 40% incidence of lymphomas in males after 4OHT treatment
• lymphomas mainly arise from the thymus and mesenteric lymph nodes
• all lymphomas are derived from CD3+ T-cells with either a mature appearance of small lymphocytes or large lymphoblasts
• 20% of males develop prostate cancer after 4OHT treatment
• prostate intraepithelial neoplasm (PIN) is observed at 4-6 weeks post 4-OHT treatment
• about 50% of males and females exhibit malignant tumors at 21 weeks and 10-11 weeks after 4OHT treatment, respectively
• 10% of males and 15.4% of females develop squamous cell carcinoma of the epidermis after 4OHT treatment

digestive/alimentary system
• males develop small or large intestinal polyps at more than 35 weeks post 4OHT treatment
• 35% of males develop intestinal cancer after 4OHT treatment, arising from the colorectum and small intestine

endocrine/exocrine glands
• 76.9% incidence of lymphomas in females after 4OHT treatment
• 40% incidence of lymphomas in males after 4OHT treatment
• lymphomas mainly arise from the thymus and mesenteric lymph nodes
• all lymphomas are derived from CD3+ T-cells with either a mature appearance of small lymphocytes or large lymphoblasts
• prostate hyperplasia is observed at 4-6 weeks post 4-OHT treatment
• 20% of males develop prostate cancer after 4OHT treatment
• prostate intraepithelial neoplasm (PIN) is observed at 4-6 weeks post 4-OHT treatment

reproductive system
• prostate hyperplasia is observed at 4-6 weeks post 4-OHT treatment
• 20% of males develop prostate cancer after 4OHT treatment
• prostate intraepithelial neoplasm (PIN) is observed at 4-6 weeks post 4-OHT treatment
• most females develop endometrial hyperplasia at between 7 and 9 weeks post 4-OHT treatment

integument
• 10% of males and 15.4% of females develop squamous cell carcinoma of the epidermis after 4OHT treatment

homeostasis/metabolism
• about 50% of males and females exhibit malignant tumors at 21 weeks and 10-11 weeks after 4OHT treatment, respectively

immune system
• 76.9% incidence of lymphomas in females after 4OHT treatment
• 40% incidence of lymphomas in males after 4OHT treatment
• lymphomas mainly arise from the thymus and mesenteric lymph nodes
• all lymphomas are derived from CD3+ T-cells with either a mature appearance of small lymphocytes or large lymphoblasts

hematopoietic system
• 76.9% incidence of lymphomas in females after 4OHT treatment
• 40% incidence of lymphomas in males after 4OHT treatment
• lymphomas mainly arise from the thymus and mesenteric lymph nodes
• all lymphomas are derived from CD3+ T-cells with either a mature appearance of small lymphocytes or large lymphoblasts


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
01/06/2026
MGI 6.24
The Jackson Laboratory