About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Sectm1aem1Gcfa
endonuclease-mediated mutation 1, Guo-Chang Fan
MGI:6852564
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Sectm1aem1Gcfa/Sectm1aem1Gcfa C57BL/6-Sectm1aem1Gcfa MGI:6852566


Genotype
MGI:6852566
hm1
Allelic
Composition
Sectm1aem1Gcfa/Sectm1aem1Gcfa
Genetic
Background
C57BL/6-Sectm1aem1Gcfa
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Sectm1aem1Gcfa mutation (0 available); any Sectm1a mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• the number of macrophages and neutrophils is increased in LPS-treated hearts
• levels of TNF-alpha, IL-6, and IL-1beta are increased in LPS-treated hearts
• mice fed a high-fat diet to induce chronic inflammation show an increase in infiltration of inflammatory monocytes/macrophages into hearts
• macrophages from LPS-treated hearts show proinflammatory phenotype with higher expression of CCR2 and MHC-II but reduced levels of CD206
• bone marrow derived macrophages (BMDMs) show augmented secretion of inflammatory factors in response to LPS treatment; 31% increase in the levels of proinflammatory CD38 and 24% lower levels of anti-inflammatory CD206, indicating that macrophages are skewed towards a pro-inflammatory phenotype
• however, basal levels of TNF-alpha, IL-1beta, IL-6, and MCP-1 are normal in bone marrow derived macrophages
• treatment of BMDMs with GW3965, a LXR antagonist, prior to LPS stimulation fails to rescue LPS-induced inflammation
• levels of IL-6 and IL-1beta are increased in LPS-treated hearts
• LPS-treated mice show increased serum levels of IL-1beta
• LPS-treated mice show increased serum levels of IL-6
• level of TNF-alpha is increased in LPS-treated hearts
• LPS-treated mice show increased serum levels of TNF-alpha
• mice injected with LPS exhibit an approximate 40% higher mortality rate than wild-type mice, with a median survival of 35 hours compared to 60 hours for wild-type mice

cardiovascular system
• mice exhibit an increase in aggravated cardiac dysfunction after LPS injection compared to wild-type mice, with a 38% reduction in fractional shortening
• however, mice exhibit normal cardiac function under basal conditions
• treatment of BMDMs with GW3965, a LXR antagonist, prior to LPS stimulation fails to rescue LPS-induced cardiac dysfunction
• mice fed a high-fat diet exhibit worsened cardiac function compared to controls
• the number of macrophages and neutrophils is increased in LPS-treated hearts
• levels of TNF-alpha, IL-6, and IL-1beta are increased in LPS-treated hearts
• mice fed a high-fat diet to induce chronic inflammation show an increase in infiltration of inflammatory monocytes/macrophages into hearts

hematopoietic system
• macrophages from LPS-treated hearts show proinflammatory phenotype with higher expression of CCR2 and MHC-II but reduced levels of CD206
• bone marrow derived macrophages (BMDMs) show augmented secretion of inflammatory factors in response to LPS treatment; 31% increase in the levels of proinflammatory CD38 and 24% lower levels of anti-inflammatory CD206, indicating that macrophages are skewed towards a pro-inflammatory phenotype
• however, basal levels of TNF-alpha, IL-1beta, IL-6, and MCP-1 are normal in bone marrow derived macrophages
• treatment of BMDMs with GW3965, a LXR antagonist, prior to LPS stimulation fails to rescue LPS-induced inflammation

homeostasis/metabolism
• levels of IL-6 and IL-1beta are increased in LPS-treated hearts
• LPS-treated mice show increased serum levels of IL-1beta
• LPS-treated mice show increased serum levels of IL-6
• level of TNF-alpha is increased in LPS-treated hearts
• LPS-treated mice show increased serum levels of TNF-alpha

muscle
• mice exhibit an increase in aggravated cardiac dysfunction after LPS injection compared to wild-type mice, with a 38% reduction in fractional shortening
• however, mice exhibit normal cardiac function under basal conditions
• treatment of BMDMs with GW3965, a LXR antagonist, prior to LPS stimulation fails to rescue LPS-induced cardiac dysfunction
• mice fed a high-fat diet exhibit worsened cardiac function compared to controls





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/12/2024
MGI 6.24
The Jackson Laboratory