Search Criteria: Research Area is "Cancer Research: Increased Tumor Incidence (Other Tissues/Organs: pituitary)"
| Stock Number |
Strain Name Strain Description |
Standard Supply |
| 002082 | 129S-Rb1tm1Tyj/J | Repository-Cryopreserved |
| Mice homozygous for this targeted mutation die in utero, apparently from a failure to produce erythrocytes in the liver, demonstrating that the endogenous gene is essential for normal development. Heterozygous mice, which are analogous to human carrier individuals, do not develop retinal tumors, but do develop pituitary tumors by 8 months of age. | ||
| 002102 | B6.129S2-Rb1tm1Tyj/J | Repository-Cryopreserved |
| Mice homozygous for this targeted mutation die in utero, apparently from a failure to produce erythrocytes in the liver, demonstrating that the endogenous gene is essential for normal development. Heterozygous mice, which are analogous to human carrier individuals, do not develop retinal tumors, but do develop pituitary tumors by 8 months of age. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. This is the case for this strain. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available. | ||
| 002546 | C3Ou.129S2-Rb1tm1Tyj/J | Repository-Cryopreserved |
| Mice homozygous for this targeted mutation die in utero, apparently from a failure to produce erythrocytes in the liver, demonstrating that the endogenous gene is essential for normal development. Heterozygous mice, which are analogous to human carrier individuals, do not develop retinal tumors, but do develop pituitary tumors by 8 months of age. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. This is the case for this strain. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available. | ||
| 002900 | FVB.129S2(B6)-Rb1tm1Tyj/J | Repository-Cryopreserved |
| Mice homozygous for this targeted mutation die in utero. Homozygous embryos are morphologically indistinguishable from normal embryos at 12.5 days post coitum, but then die between 13.5 d.p.c and 14.5 d.p.c. Defects are seen in fetal liver hematopoiesis as well as in lens and nervous system development. Heterozygous mice, which are analogous to human carrier individuals, do not develop retinal tumors, but do develop pituitary tumors by 8 months of age. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. This is the case for this strain. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available. | ||
| 004066 | FVB;129S-Men1tm1.1Ctre/J | Repository-Cryopreserved |
| Mice that are homozygous null for the Men1 gene die in utero at embryonic days 10.5-11.5, exhibiting delayed development often (20%) with defects in cranial/facial formation. At birth, heterozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. At nine months, ~80% of the heterozygous-null mice develop abnormalities in pancreatic islet cells, the severity of which ranges from hyperplasia to insulin-producing tumors. Parathyroid adenomas are also observed at this age. Tumor incidence is progressive, with occurrences in multiple endocrine tissues (pancreatic islets, parathyroids, thyroid, adrenal cortex, pituitary) by sixteen months of age. | ||
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