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Phenotypes Associated with This Genotype
Genotype
MGI:4836620
Allelic
Composition
Ptentm1Hwu/Ptentm1Hwu
Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ptentm1Hwu mutation (16 available); any Pten mutation (81 available)
Tg(Mx1-cre)1Cgn mutation (7 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• mice develop multiple polyps in the small intestine one month after completion of pIpC injection to induce Cre expression
• polyps show a large excess of crypt-like units at their base and aberrant positioning of crypts along the edges of villi
• overgrowth and insertions of stromal cells from the base of the polypoid mass are seen in the small intestine one month after completion of pIpC injection to induce Cre expression
• intestinal stem cells exhibit increased proliferation due to Akt activation and nuclear localization of beta-catenin resulting in an increase of intestinal stem cells in the crypts
• these excess stem cells initiate de novo crypt formation and crypt fission at a higher rate than in controls

neoplasm
• mice injected with pIpC to induce Pten deletion, develop myeloproliferative disease and T-cell acute lymphoblastic leukemia

immune system
• mice injected with pIpC to induce Pten deletion have an enlarged thymus
• mice injected with pIpC to induce Pten deletion have an enlarged spleen

mortality/aging
• mean survival time of mice injected with pIpC to induce Pten deletion is 35 days

hematopoietic system
• mice injected with pIpC to induce Pten deletion have an enlarged thymus
• mice injected with pIpC to induce Pten deletion have an enlarged spleen

endocrine/exocrine glands
• mice injected with pIpC to induce Pten deletion have an enlarged thymus

growth/size/body
• mice injected with pIpC to induce Pten deletion have an enlarged spleen


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