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Phenotypes Associated with This Genotype
Genotype
MGI:4837384
Allelic
Composition
Myh6tm3.1Jse/Myh6+
Genetic
Background
involves: 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myh6tm3.1Jse mutation (0 available); any Myh6 mutation (206 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• at 35 weeks but not prior to 20 weeks
• cyclosporine A treatment accelerates development of increased left ventricular wall thickness (1.8-fold) unlike similarly treated wild-type mice
• mice treated with cyclosporine A and Tgf-beta neutralizing antibodies exhibit less maximal left ventricular wall thickness compared with mice treated with cyclosporine A and IgG
• mice treated with cyclosporin A and losartan exhibit less maximal left ventricular wall thickness compared with mice treated with only cyclosporin
• however, mice treated with cyclosporin A and losartan exhibit the same maximal left ventricular wall thickness as in similarly treated wild-type mice
• cyclosporine A treatment accelerates development of myocardial fibrosis (80-fold) unlike similarly treated wild-type mice
• mice treated with cyclosporine A and Tgf-beta neutralizing antibodies exhibit reduced cardiac fibrosis compared with mice treated with cyclosporine A and IgG
• mice treated with cyclosporin A and losartan exhibit 2.9-fold less fibrosis compared with mice treated with only cyclosporin A
• non-myocyte cells from hypertrophic mice treated with cyclosporine A exhibit a 4-fold increase in proliferation compared with cells from similarly treated wild-type mice
• non-myocyte cells in regions with normal histological architecture from hypertrophic mice treated with cyclosporine A exhibit a 3.3-fold increase in proliferation compared with cells from similarly treated wild-type mice
• non-myocyte cells in left ventricular sections with focal fibrosis or overt interstitial expansion from hypertrophic mice treated with cyclosporine A exhibit a 4-fold increase in proliferation compared with cells from similarly treated wild-type mice
• proliferation of non-myocyte cells is greater in regions with focal fibrosis and expanded interstitium compared to in regions with normal architecture
• mice treated with cyclosporine A and Tgf-beta neutralizing antibodies exhibit reduced non-myocyte proliferation in regions with fibrosis and regions with preserved myocardial architecture compared with mice treated with cyclosporine A and IgG
• mice treated with cyclosporin A and losartan exhibit reduced non-myocyte cell proliferation in fibrotic regions (8-fold) and regions with preserved myocardial architecture compared with mice treated with mice treated with only cyclosporin A
• however, losartan treatment reduces proliferation in the hypertrophic hearts of mice treated with cyclosporin A to the level observed in similarly treated wild-type mice
• mice exhibit hypertrophic cardiomyopathy at 35 weeks but not prior to 20 weeks
• cyclosporine A treatment accelerates development hypertrophic cardiomyopathy histopathology unlike similarly treated wild-type mice

homeostasis/metabolism
• cyclosporine A-treated mice accelerates increased left ventricular wall thickness (1.8-fold), overt hypertrophic cardiomyopathy histopathology, including myocardial fibrosis (80-fold), and preserved cardiac function unlike similarly treated wild-type mice

muscle
• at 35 weeks but not prior to 20 weeks
• mice exhibit hypertrophic cardiomyopathy at 35 weeks but not prior to 20 weeks
• cyclosporine A treatment accelerates development hypertrophic cardiomyopathy histopathology unlike similarly treated wild-type mice

growth/size/body
• at 35 weeks but not prior to 20 weeks

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
hypertrophic cardiomyopathy 14 DOID:0110320 OMIM:613251
J:165269


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
04/23/2024
MGI 6.23
The Jackson Laboratory