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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of mouse small intestine from wildtype B6, Rag1-/- B6 and Rag1-/- B6 mice harboring the 225.4 IgA producing hybridoma after infection with Bacteroides thetaiotaomicron

ABSTRACT: Wildtype B6, Rag1-/- B6 and Rag1-/- B6 mice harboring the 225.4 IgA producing hybridoma were colonized for 10 days with Bacteroides thetaiotaomicron Experiment Overall Design: Distal small intestine segments were snap frozen immediately after the mice were sacrificed, and small intestine divided into 16 equal segments, segments 10, 11, 12 and 14 were pooled and RNA extracted.

ORGANISM(S): Mus musculus

SUBMITTER: Daniel Peterson

PROVIDER: E-GEOD-9018 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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IgA response to symbiotic bacteria as a mediator of gut homeostasis.

Peterson Daniel A DA McNulty Nathan P NP Guruge Janaki L JL Gordon Jeffrey I JI

Cell host & microbe 20071101 5

Colonization of germ-free mice with a normal gut microbiota elicits bacteria-specific IgA antibody responses. The effects of these responses on microbial and host biology remain poorly defined. Therefore, we developed a gnotobiotic mouse model where the microbiota is reduced to one bacterial species, and the antibody repertoire to a single, monoclonal IgA against the bacterium's capsular polysaccharide. Bacteroides thetaiotaomicron was introduced into germ-free wild-type, immunodeficient Rag1(-/ ...[more]

PMID: 18005754

Similar Datasets

IgA impact on distal small intestine after colonization with B. thetaiotaomicron

Project description:Wildtype B6, Rag1-/- B6 and Rag1-/- B6 mice harboring the 225.4 IgA producing hybridoma were colonized for 10 days with Bacteroides thetaiotaomicron Keywords: RNA Expression Array

2007-12-27 | GSE9018 | GEO

Characterizing the interactions between a naturally-primed IgA (mAb 260.8) and its conserved Bacteroides thetaiotaomicron species-specific epitope in gnotobiotic mice [array]

Project description:Comparisons of gnotobiotic Rag1-/- mice, with and without subcutaneous 260.8 hybridomas, disclosed that this IgA does not affect B. thetaiotaomicron population density or suppress 260.8 epitope production but does affect bacterial gene expression in ways that are emblematic of a diminished host innate immune response. C57BL/6 wildtype, C57BL/6J Rag1-/- , and C57BL/6J Rag1-/- mice harboring the 260.8 IgA producing hybridoma were colonized for 10 days with Bacteroides thetaiotaomicron VPI-5482.

2015-06-29 | E-GEOD-65455 | biostudies-arrayexpress

Transcriptional profiling of rag1 deficient (rag1-/-) and rag1 heterozygous (rag1+/-) zebrafish kidney and intestine

Project description:Four dual hybridizations of rag1 deficient (rag1-/-) and rag1 heterozygous (rag1+/-) zebrafish cRNAs from kidney and intestine. Keywords: Gene knockout

2009-01-05 | GSE12655 | GEO

Transcription profiling by array of peritoneal macrophages from B6 wild type and B6-Rag1 knock-out mice

Project description:Transcriptional profiling of peritoneal macrophages from B6 (WT) and B6-Rag1KO (Rag1) mice. Peritoneal cells from 40 mice of each genotype were FACS sorted CD11b+MHC-IIhiB220-Gr1- and total RNA extracted with TRI-reagent. Microarray analysis was performed in triplicate with Affymetrix Mouse Gene 1.0 ST chips, following the manufacturer's instructions.

2012-05-02 | E-MEXP-3623 | biostudies-arrayexpress

Gene expression of Bacteroides thetaiotaomicron, in vivo with and without IgA 225.4

Project description:Rag1-/- C57BL/6 or Rag1-/- C57BL/6 injected with the IgA producing hybridoma producing 225.4 anti- Bacteroides thetaiotaomicron (Capsular polysaccharide 4 dependent carbohydrate epitope specific epitope) mice were colonized with B. thetaiotaomicron wildtype strain VPI-5482 for 10 days. Cecal bacteria were harvested and snap frozen and RNA isolated. Keywords: Single time point, experimental and control groups.

2007-12-27 | GSE9019 | GEO

Sequencing the anti-MUC1 hybridoma antibody 139H2

Project description:Mucin 1 (MUC1) is a transmembrane mucin expressed at the apical surface of epithelial cells at different mucosal surfaces including breast and intestine. The MUC1 extracellular domain contains a variable number of tandem repeats (VNTR) of 20 amino acids, which are heavily O-linked glycosylated. Monoclonal antibodies against the MUC1 VNTR can be powerful tools because of their multiplicity of binding and possible applications in the diagnosis and treatment of MUC1-expressing cancers. One such antibody is the hybridoma mouse monoclonal 139H2 which is also widely used as a research tool to study non-cancer MUC1. Here we report direct mass spectrometry-based sequencing of hybridoma-derived 139H2 IgG, which enabled reverse engineering of a recombinant 139H2.

2024-03-18 | PXD043489 | Pride

The In Vivo Pattern of Binding of RAG1 and RAG2 to Antigen Receptor Loci

Project description:The critical initial step in V(D)J recombination, binding of RAG1 and RAG2 to recombination signal sequences flanking antigen receptor V, D, and J gene segments, has not previously been characterized in vivo. Here we demonstrate that RAG protein binding occurs in a highly focal manner to a small region of active chromatin encompassing IgÎº and TcrÎ± J gene segments and Igh and TcrÎ² J and J-proximal D gene segments. Formation of these small RAG-bound regions, which we refer to as recombination centers, occurs in a developmental stage- and lineage-specific manner. Each RAG protein is independently capable of specific binding within recombination centers. While RAG1 binding is restricted to regions containing recombination signal sequences, RAG2 binds extremely broadly in a pattern that mirrors that of trimethylated lysine 4 of histone 3. We propose that recombination centers coordinate V(D)J recombination by providing discrete sites within which gene segments are captured for recombination. RAG2 binding was analyzed in wild type, RAG2-/-Î², and D708A-RAG1-/-Î² thymocytes. Histone modification H3K4me3 was analyzed in D708A-RAG1-/-Î² and wild type thymocytes.

2010-04-19 | E-GEOD-21207 | biostudies-arrayexpress

2019 Brecht et al. RAG1 vAbl BioID LC-MS/MS

Project description:To identify mechanisms that regulate V(D)J recombination, we used proximity-dependent biotin identification to analyze the interactomes of full length and truncated forms of RAG1 in pre-B cells. This revealed an association of RAG1 with numerous nucleolar proteins in a manner dependent on amino acids 216-383 and allowed identification of a motif required for nucleolar localization. Experiments in transformed pre-B cell lines and cultured primary pre-B cells reveal a strong correlation between disruption of nucleoli, reduced association of RAG1 with a nucleolar marker, and increases in V(D)J recombination activity. Mutation of the RAG1 nucleolar localization motif boosts recombination while removal of the first 215 amino acids of RAG1, which are required for efficient egress from nucleoli, reduces recombination activity. Our findings indicate that nucleolar sequestration of RAG1 is a negative regulatory mechanism in V(D)J recombination and identify regions of the RAG1 N-terminal region that control nucleolar association and egress.

2020-04-02 | PXD016221 | Pride

The In Vivo Pattern of Binding of RAG1 and RAG2 to Antigen Receptor Loci

Project description:The critical initial step in V(D)J recombination, binding of RAG1 and RAG2 to recombination signal sequences flanking antigen receptor V, D, and J gene segments, has not previously been characterized in vivo. Here we demonstrate that RAG protein binding occurs in a highly focal manner to a small region of active chromatin encompassing Igκ and Tcrα J gene segments and Igh and Tcrβ J and J-proximal D gene segments. Formation of these small RAG-bound regions, which we refer to as recombination centers, occurs in a developmental stage- and lineage-specific manner. Each RAG protein is independently capable of specific binding within recombination centers. While RAG1 binding is restricted to regions containing recombination signal sequences, RAG2 binds extremely broadly in a pattern that mirrors that of trimethylated lysine 4 of histone 3. We propose that recombination centers coordinate V(D)J recombination by providing discrete sites within which gene segments are captured for recombination.

2010-04-20 | GSE21207 | GEO

NGS-mRNA in lung tissues in RAG1-/- and in RAG1-/- Sgo1-/+ mice

Project description:We compared lung mRNA expression profiles between RAG1-/- control and RAG1-/- Sgo1-/+ chromosome instability model mice. RAG1-/-Sgo1-/+ mice developed significantly more spontaneous lung tumors.

2017-02-09 | GSE84383 | GEO

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