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GSE25911
Mus musculus
24 Downloadable Samples
Description
MLL-fusions may induce leukemogenic gene expression programs by recruiting the histone H3K79 methyltransferase to MLL-target promoters. We evaluated gene expression changes after cre-mediated loss of Dot1l in leukemia cells obtained from mice injected with MLL-9 transformed lineage negative bone marrow cells.
Publication Title
MLL-rearranged leukemia is dependent on aberrant H3K79 methylation by DOT1L.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 30 Downloadable Samples
Description
To investigate the early host response triggered by three different strains of Trypanosoma cruzi at a local infection site, changes in host gene expression were monitored in a murine intradermal infection model using Affymetrix oligonucleotide arrays. Robust induction of IFN-stimulated genes (ISGs) was observed in excised skin 24 hours post-infection where the level of ISG induction was parasite strain-dependent with the least virulent strain triggering a muted IFN response. Infection of mice immunodepleted of IFN-producing cells or infection of IFN-deficient mice had minimal impact on the IFN response generated in T. cruzi infected mice. In contrast, infection of mice lacking the type I IFN receptor demonstrated that type I IFNs are largely responsible for the IFN response generated at the site of infection. These data highlight type I IFNs as important components of the innate immune response to T. cruzi the site of inoculation and their role in shaping the early transcriptional response to this pathogen.
Publication Title
Trypanosoma cruzi triggers an early type I IFN response in vivo at the site of intradermal infection.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 24 Downloadable Samples
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Reversal of Alopecia Areata Following Treatment With the JAK1/2 Inhibitor Baricitinib.
Sample Metadata Fields
Specimen part, Treatment, Time
View Samples- Mus musculus
- 20 Downloadable Samples
Description
Inflammation has pleiotropic effects on carcinogenesis and tumor progression. Signaling through the adaptor protein MyD88 promotes carcinogenesis in several chemically induced cancer models. Interestingly, we observed a protective role for MyD88 in the development of AOM/DSS colitis-associated cancer. The inability of Myd88-/- mice to heal ulcers generated upon injury creates an inflammatory environment that increases the frequency of mutations and results in a dramatic increase in adenoma formation and cancer progression. Susceptibility to colitis development and enhanced polyp formation were also observed in Il18-/- mice upon AOM/DSS treatment, suggesting that the phenotype of MyD88 knockouts is in part due to their inability to signal through the IL-18 receptor. This study revealed a previously unknown level of complexity surrounding MyD88 activities downstream of different receptors that differentially impact tissue homeostasis and carcinogenesis.
Publication Title
MyD88-mediated signaling prevents development of adenocarcinomas of the colon: role of interleukin 18.
Sample Metadata Fields
Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 12 Downloadable Samples
Description
The C3H/HeJ grafted model of alopecia areata was used to determine the efficacy of systemic baricitinib at preventing alopecia or treating established disease.
Publication Title
Reversal of Alopecia Areata Following Treatment With the JAK1/2 Inhibitor Baricitinib.
Sample Metadata Fields
Specimen part, Treatment, Time
View Samples- Mus musculus
- 12 Downloadable Samples
Description
The C3H/HeJ grafted model of alopecia areata was used to determine the efficacy of systemic baricitinib at preventing alopecia or treating established disease.
Publication Title
Reversal of Alopecia Areata Following Treatment With the JAK1/2 Inhibitor Baricitinib.
Sample Metadata Fields
Specimen part, Treatment, Time
View Samples- Mus musculus
- 45 Downloadable Samples
Description
Our goal was to identify gene expression patterns that correlated with prevention of autoimmune alopecia in C3H/HeJ mice following alopecic graft transplantation
Publication Title
Alopecia areata is driven by cytotoxic T lymphocytes and is reversed by JAK inhibition.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Mus musculus
- 14 Downloadable Samples
Description
Recurrent somatic mutations in TET2 and in other genes that regulate the epigenetic state have been identified in patients with myeloid malignancies and in other cancers. However, the in vivo effects of Tet2 loss have not been delineated. We report here that Tet2 loss leads to increased stem-cell self-renewal and to progressive stem cell expansion. Consistent with human mutational data, Tet2 loss leads to myeloproliferation in vivo, notable for splenomegaly and monocytic proliferation. In addition, haploinsufficiency for Tet2 confers increased self-renewal and myeloproliferation, suggesting that the monoallelic TET2 mutations found in most TET2-mutant leukemia patients contribute to myeloid transformation. This work demonstrates that absent or reduced Tet2 function leads to enhanced stem cell function in vivo and to myeloid transformation.
Publication Title
Tet2 loss leads to increased hematopoietic stem cell self-renewal and myeloid transformation.
Sample Metadata Fields
Specimen part
View Samples