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Gene expression profiles of the small intestine and Peyer's patches from mice that were orally infected with Toxoplasma

ABSTRACT: The Toxoplasma type I ROP16 kinase directly activates the host STAT3 and STAT6 transcription factors and when transgenically expressed in the orally virulent type II strain, promotes host resistance to oral challenge. The transcriptional profile of type II and II+ROP16I infected Peyer's patches and intestines from orally infected mice on day 5 was determined to elucidate host signaling pathways and molecular gene targets that correlate with protective immunity in the gut of orally challenged animals

ORGANISM(S): Mus musculus

PROVIDER: GSE45310 | GEO | 2013/03/20

SECONDARY ACCESSION(S): PRJNA193444

REPOSITORIES: GEO

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Gene expression profiles of the small intestine and Peyer's patches from mice that were orally infected with Toxoplasma

Project description:The Toxoplasma type I ROP16 kinase directly activates the host STAT3 and STAT6 transcription factors and when transgenically expressed in the orally virulent type II strain, promotes host resistance to oral challenge. The transcriptional profile of type II and II+ROP16I infected Peyer's patches and intestines from orally infected mice on day 5 was determined to elucidate host signaling pathways and molecular gene targets that correlate with protective immunity in the gut of orally challenged animals C57BL/6 female mice were orally gavaged with 1000 tissue cysts of the type II or II+ROP16I strain. On Day 5 of infection the Peyer's patches and intestines were analyzed for parasite burden by bioluminescence imaging. Individual Peyer's patches and intestinal sections, corresponding to the middle third of the intestine (~jejunum), that had equivalent parasite burden were snap frozen in liquid nitrogen. The samples were crushed using a sterile 16 G needle in tubes on dry ice. In the case of the intestine, the sample was resuspended in TRizol, extruded through a needle using a syringe and RNA was isolated according to manufacturer's protocol; for the Peyer's patch, the sample was suspended in cell lysis buffer and RNA isolated using the RNeasey kit (Invitrogen) according to the manufacter's protocol.

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Expression Data from Toxoplasma gondii-Infected Murine Bone Marrow-Derived Macrophages

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Project description:The Toxoplasma type I ROP16 kinase directly activates the host STAT3 and STAT6 transcription factors and regulates the expression of many host genes. However, many of genes lack known STAT3/6 transcription factor binding sites in their promoter regions. We wanted to understand what fraction of host genes that are modulated by ROP16 were dependent on the STAT3 and STAT6 signaling pathways. Bone marrow-derived macrophages (BMMs) from mLys-Mcre Stat3fl/fl mice were infected with type II (Pru A7), type II +ROP16 I, type II Δgra15, or type II Δgra15 + ROP16I and gene expression was analyzed 18 hrs after infection. This data set was generated side by side with infections performed in B6 BMDMs, the gene expression results for that experiment were previoiusly submitted under the GEO accession number GSE29404. In addition, gene expression of wild type B6 and Stat6-/- BMDMs were infected with the II+ROP16I strain.

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Expression data from RAW264.7 murine macrophages infected with Toxoplasma gondii and subsequently stimulated with interferon-gamma

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ROP16-dependent host transcriptional responses in chicken embryonic fibroblasts infected with T. gondii [RH, ROP16-KO]

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Gene expression Data from Toxoplasma gondii-Infected Murine Bone Marrow-Derived STAT6 and STAT3 Deficient Macrophages

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