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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Mir142hgGt(IST11580H2)Tigm
gene trap IST11580H2, Texas A&M Institute for Genomic Medicine
MGI:4059881
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Mir142hgGt(IST11580H2)Tigm/Mir142hgGt(IST11580H2)Tigm involves: C57BL/6N MGI:5584114


Genotype
MGI:5584114
hm1
Allelic
Composition
Mir142hgGt(IST11580H2)Tigm/Mir142hgGt(IST11580H2)Tigm
Genetic
Background
involves: C57BL/6N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Mir142hgGt(IST11580H2)Tigm mutation (0 available); any Mir142hg mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• mice exhibit normal numbers of macrophages and dendritic cell precursors
• starting at 6 weeks with slight infiltration of secondary and primary lymphoid organs by myeloid cells (particularly neutrophils)
• neutrophils infiltrate the spleens, skin-draining lymph nodes and thymi
• distorted dendritic cell composition
• cell-intrinsic and cell-specific impairment in generation of CD4+ dendritic cells (determined by bone marrow cell transplantation experiments)
• 2.5-fold and 1.7-fold reduction in absolute number of CD4+ and CD8alpha+ dendritic cells independent of enlarged spleens
• decreased CD4+ dendritic cells in mesenteric lymph nodes
• increased absolute number of double negative dendritic cells due to splenomegaly
• increased numbers of CD103+ CD11b+ dendritic cell in the mesenteric lymph nodes
• however, the frequency of double negative dendritic cells is normal

hematopoietic system
N
• mice exhibit normal numbers of macrophages and dendritic cell precursors
• starting at 6 weeks with slight infiltration of secondary and primary lymphoid organs by myeloid cells (particularly neutrophils)
• slight decrease in early myeloid progenitors
• neutrophils infiltrate the spleens, skin-draining lymph nodes and thymi
• distorted dendritic cell composition
• cell-intrinsic and cell-specific impairment in generation of CD4+ dendritic cells (determined by bone marrow cell transplantation experiments)
• 2.5-fold and 1.7-fold reduction in absolute number of CD4+ and CD8alpha+ dendritic cells independent of enlarged spleens
• decreased CD4+ dendritic cells in mesenteric lymph nodes
• increased absolute number of double negative dendritic cells due to splenomegaly
• increased numbers of CD103+ CD11b+ dendritic cell in the mesenteric lymph nodes
• however, the frequency of double negative dendritic cells is normal
• cell-intrinsic and cell-specific impairment in generation of CD4+ dendritic cells (determined by bone marrow cell transplantation experiments)
• in reconstitution experiments, CD4+ dendritic cells exhibit impaired CD4+ T cell priming compared to control mice
• bone marrow cells fail to develop CD4+ dendritic cells in vitro

cellular
• cell-intrinsic and cell-specific impairment in generation of CD4+ dendritic cells (determined by bone marrow cell transplantation experiments)

growth/size/body
• starting at 6 weeks with slight infiltration of secondary and primary lymphoid organs by myeloid cells (particularly neutrophils)





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last database update
11/19/2024
MGI 6.24
The Jackson Laboratory