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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





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last database update
05/07/2024
MGI 6.23
The Jackson Laboratory