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Characterizing the interactions between a naturally-primed IgA and its conserved Bacteroides thetaiotaomicron species-specific epitope in gnotobiotic mice [RNA-Seq]

ABSTRACT: We report the mid-log phase transcriptional profile of the human gut symbiont Bacteroides thetaiotaomicron, grown in the presence of mouse monoclonal IgAs with species- and strain-level specificity (mAb 260.8 and mAb 225.4, respectively). mRNA expression profiling of the type strain of Bacteroides thetaiotaomicron (NC_004663) grown in vitro in the presence of either (i) PBS (carrier control), (ii) mAb 225.4 alone, (iii) mAb 260.8 alone, (iv) an equal combination of mAbs 225.4 and 260.8, or (v) a nonbinding control mouse mAb IgA (JC63.1)

ORGANISM(S): Bacteroides thetaiotaomicron

SUBMITTER: Joseph Planer

PROVIDER: E-GEOD-65449 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Characterizing the interactions between a naturally-primed IgA and its conserved Bacteroides thetaiotaomicron species-specific epitope in gnotobiotic mice [RNA-Seq]

Project description:We report the mid-log phase transcriptional profile of the human gut symbiont Bacteroides thetaiotaomicron, grown in the presence of mouse monoclonal IgAs with species- and strain-level specificity (mAb 260.8 and mAb 225.4, respectively).

2015-06-29 | GSE65449 | 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

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

Transcription analysis of E. coli O103:H25 in co-culture with Bacteroides thetaiotaomicron CCUG 10774

Project description:Investigation of whole genome gene expression level changes in E. coli O103:H25 in co-culture with Bacteroides thetaiotaomicron CCUG 10774 compared to when E. coli is cultured individually. A study using total RNA recovered from three separate co-cultures (E. coli O103:H25 and B. thetaiotaomicron 1:100) at OD=0.5, compared to when E. coli is cultured individually (5 separate samples including 1-3 technical replicates of each sample). Three separate samples are also recovered when E. coli is cultured in supernatant from Bacteroides thetaiotaomicron at OD=0.5 compared to when E coli is cultured alone. A comparison is also done after treatment with Mitomycin C (MMC). MMC is added at OD=0.5. There are 3 separate samples from each group that are compared (co-culture versus E. coli grown individually, E. coli in supernatant from B. thetaiotaomicron versus E. coli grown individually).

2014-12-18 | E-GEOD-44790 | 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

Regulated expression of polysaccharide utilization and capsular biosynthesis loci in biofilm and planktonic Bacteroides thetaiotaomicron during growth in chemostats

Project description:We used Affymetrix GeneChips to determine the physiological differences between biofilm and planktonic cells of Bacteroides thetaiotaomicron strain VPI-5482 (ATCC 29148) by comparing gene expression. For this purpose, B. thetaiotaomicron cells were grown in sterile, continuous flow bioreactors fed with tryptone, yeast extract, glucose (TYG) medium. The bioreactors were controlled at a temperature of 37C using a water jacket and a recirculating water heater. After 8 hours post-inoculation, planktonic cells were harvested from the bulk solution in the bioreactor, and after 8 days post-inoculation, the biofilm was scraped from the carbon paper. RNA was harvested from both biofilm and planktonic populations. RNA was extracted by a phenol:chloroform method and purified with a Qiagen RNA Easy mini-kit. Overall growth conditions are summarized above. The experimental conditions were: biofilm (BF), and planktonic (PL).

2014-01-01 | E-GEOD-38534 | biostudies-arrayexpress

In vitro transcriptional profiling of Bacteroides thetaiotaomicron in lactose, galactose and human milk oligosaccharides

2013-01-01 | GSE26772 | GEO

Role of OxyR and iron in gene regulation in Bacteroides thetaiotaomicron

Project description:Role of OxyR and iron in gene regulation in Bacteroides thetaiotaomicron

2023-03-30 | GSE169260 | GEO

In vitro transcriptional profiling of Bacteroides thetaiotaomicron in lactose, galactose and human milk oligosaccharides

Project description:Investigation of the overall in vitro response of Bacteroides thetaiotaomicron to human milk oligosaccharides. Comparison with response to MM-lactose and MM-galactose (Analysis performed using as a baseline datasets GSM301635 and GSM301637 corresponding to Bacteroides thetaiotaomicron response in MM-Glucose) In vitro transcriptional profiles of Bacteroides thetaiotaomicron obtained from biological duplicate cultures taken: (i) at middle log phase in minimal media galactose (MM-Gal) and minimal media lactose (MM-L) and (ii) at two timepoints during log phase in minimal media human milk oligosaccharides (MM-HMO).

2013-01-01 | E-GEOD-26772 | biostudies-arrayexpress

Transcriptional profiling of Salmonella typhimurium in the ceca of gnotobiotic mice

Project description:Transcriptional profiling of Salmonella typhimurium in the ceca of germ-free and Bacteroides thetaiotaomicron-monoassociated gnotobiotic mice. Comparison with response in MM-Glucose. In vivo transcriptional profiles of Salmonella typhimurium obtained from biological triplicate samples taken from cecal contents of germ-free and Bacteroides thetaiotaomicron-monoassociated mice 5 days post-infection with S. typhimurium. Biological duplicate samples from in vitro culture of S. typhimurium in MM-Glucose used for comparision.

2013-07-23 | E-GEOD-49076 | biostudies-arrayexpress

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