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Phenotypes Associated with This Genotype
Genotype
MGI:3609116
Allelic
Composition
Itgb8tm1Lfr/Itgb8tm2Lfr
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129/Sv * 129X1/SvJ * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Itgb8tm1Lfr mutation (1 available); any Itgb8 mutation (45 available)
Itgb8tm2Lfr mutation (1 available); any Itgb8 mutation (45 available)
Tg(Nes-cre)1Kln mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• blood vessels in the brain do not run parallel to the astroglia
• vessels in the brain develop large irregular endothelial cell clusters
• at P0 hemorrhages are seen in the dorsal cortex, thalamus, and in the ganglionic eminence near the deep mesencephalic nucleus; however hemorrhages are not seen in adult mutants and no cortical lamination defects are seen in adults
• hemorrhaging is less severe than in mice homozygous for Itgb8tm1Lfr

nervous system
• at P0 hemorrhages are seen in the dorsal cortex, thalamus, and in the ganglionic eminence near the deep mesencephalic nucleus; however hemorrhages are not seen in adult mutants and no cortical lamination defects are seen in adults
• hemorrhaging is less severe than in mice homozygous for Itgb8tm1Lfr
• at E14.5 radial glia near the ganglionic eminence (where hemorrhaging could be seen) are disorganized but those in the developing cortex (where hemorrhages are not yet present) appear normal
• at P0 astroglia appear disorganized and lack the normal parallel organization
• blood vessels in the brain do not run parallel to the astoglia

cellular
• at E14.5 radial glia near the ganglionic eminence (where hemorrhaging could be seen) are disorganized but those in the developing cortex (where hemorrhages are not yet present) appear normal
• at P0 astroglia appear disorganized and lack the normal parallel organization
• blood vessels in the brain do not run parallel to the astoglia


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
03/18/2025
MGI 6.24
The Jackson Laboratory