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Phenotypes Associated with This Genotype
Genotype
MGI:5544086
Allelic
Composition
Igs1tm11(CAG-Bgeo,-Edn2)Nat/Igs1+
Tg(Six3-cre)69Frty/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Igs1tm11(CAG-Bgeo,-Edn2)Nat mutation (1 available); any Igs1 mutation (10 available)
Tg(Six3-cre)69Frty mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Retinal vascular defects in Igs1tm11(CAG-Bgeo,-Edn2)Nat/Igs1+ Tg(Six3-cre)69Frty/0 mice

vision/eye
• some retinal regions are very thin; especially in the ganglion cell and inner nuclear layers or less commonly in the outer nuclear layer
• the peripheral retina is thinner at P6
• in some regions few or no blood vessels are observed on the vitreal face of the retina while in other regions clusters of blood vessels occupy the vitreal face
• overall density of astrocytes and endothelial cells in the vascularized territory of this retina is several fold higher than in controls
• many vessels in the developing retinal vascular plexus are not patent at P7 and P11 unlike in controls
• absence of the normal intraretinal capillary beds in the inner and outer plexiform layers
• absence of vessels in the overlying the peripheral retina at P6
• some regions are very thin
• some regions are very thin
• not as common as in the inner nuclear and ganglion cell layers
• regions of extensive detachment with numerous macrophages in the subretinal space, severe folding of the retina, accumulation of interstitial fluid, and/or development of interstitial fibrosis
• interstitial fibrosis is seen in some regions
• severe folding of the retina

cardiovascular system
• in some regions few or no blood vessels are observed on the vitreal face of the retina while in other regions clusters of blood vessels occupy the vitreal face
• overall density of astrocytes and endothelial cells in the vascularized territory of this retina is several fold higher than in controls
• many vessels in the developing retinal vascular plexus are not patent at P7 and P11 unlike in controls
• absence of the normal intraretinal capillary beds in the inner and outer plexiform layers
• absence of vessels in the overlying the peripheral retina at P6
• modest delay in the expansion of the astrocyte front in the developing retina at P3-P6 that is gone by P8
• endothelial cell growth is significantly retarded at all postnatal ages with the radial position of the growing endothelial cells largely arrested by P6
• filopodia-bearing endothelial cells are seen throughout much of the vascular plexus in the retina instead of being located predominantly in the growing front
• large excess of tip cells in the developing retinal vascular plexus

homeostasis/metabolism
• in the retina


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
03/25/2025
MGI 6.24
The Jackson Laboratory