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Differences in the microbiome of the small intestine of Leghorn lines divergently selected for antibody titer to sheep erythrocytes suggest roles for commensals in host humoral response

ABSTRACT: Differences in the microbiome of the small intestine of Leghorn lines divergently selected for antibody titer to sheep erythrocytes suggest roles for commensals in host humoral response

PROVIDER: PRJNA1005675 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25646651.fastq.gz	Fastqsanger.gz
	SRR25646652.fastq.gz	Fastqsanger.gz
	SRR25646653.fastq.gz	Fastqsanger.gz
	SRR25646654.fastq.gz	Fastqsanger.gz
	SRR25646655.fastq.gz	Fastqsanger.gz

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Differences in the microbiome of the small intestine of Leghorn lines divergently selected for antibody titer to sheep erythrocytes suggest roles for commensals in host humoral response

Project description:For forty generations, two lines of White Leghorn chickens have been selected for high (HAS) or low (LAS) antibody response to a low dose injection of sheep red blood cells (SRBCs). Their gut is home to billons of microorganisms and the largest number of immune cells in the body; therefore, the objective of this experiment was to gain understanding of the ways the microbiome may influence the differential antibody response observed in these lines. We achieved this by characterizing the small intestinal microbiome of HAS and LAS birds, determining their functional microbiome profiles, and by using machine learning to identify microbes which best differentiate HAS from LAS and associating the abundance of those microbes with host gene expression. Microbiome sequencing reveals greater diversity in LAS but statistically higher abundance of several strains, particularly those of lactobacillus, in HAS. Enrichment of microbial metabolites implicated in immune response such as lactic acid, short chain fatty acids, amino acids, and vitamins were different between HAS and LAS. The

2023-12-30 | GSE240908 | GEO

Differences in the microbiome of the small intestine of Leghorn lines divergently selected for antibody titer to sheep erythrocytes suggest roles for commensals in host humoral response.

Project description:For forty generations, two lines of White Leghorn chickens have been selected for high (HAS) or low (LAS) antibody response to a low dose injection of sheep red blood cells (SRBCs). Their gut is home to billons of microorganisms and the largest number of immune cells in the body; therefore, the objective of this experiment was to gain understanding of the ways the microbiome may influence the differential antibody response observed in these lines. We achieved this by characterizing the small intestinal microbiome of HAS and LAS chickens, determining their functional microbiome profiles, and by using machine learning to identify microbes which best differentiate HAS from LAS and associating the abundance of those microbes with host gene expression. Microbiome sequencing revealed greater diversity in LAS but statistically higher abundance of several strains, particularly those of Lactobacillus, in HAS. Enrichment of microbial metabolites implicated in immune response such as lactic acid, short chain fatty acids, amino acids, and vitamins were different between HAS and LAS. The abundance of several microbial strains corresponds to enriched host gene expression pathways related to immune response. These data provide a compelling argument that the microbiome is both likely affected by host divergent genetic selection and that it exerts influence on host antibody response by various mechanisms.

| S-EPMC10800846 | biostudies-literature

Comparative RNA sequencing of the jejuna of two lines of chickens divergently selected for antibody response to sheep red blood cells, with and without antigen exposure

Project description:Two lines of White Leghorn chickens have been continuously divergently selected for high (HAS) or low (LAS) 5 day post injection antibody titer to injection with sheep red blood cells (SRBC) for over 40 generations. Much remains to be understood about their antibody response phenotypes, therfore we chose to sequence the transcriptomes of the jejunum from individuals of the two lines which had (HASI/LASI) and had not (HASN/LASN) been injected with SRBC to examine differences in gene expression related to divergent selection and antibody response.

2023-06-07 | GSE206804 | GEO

Transcriptome of mature erythrocytes

Project description:Transcriptome of mature erythrocytes

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Expression profile of erythrocytes

2006-02-01 | GSE3674 | GEO

Transcription profiling of human erythrocytes

Project description:Human erythrocytes lack a nucleus and are considered to be incapable of protein synthesis. Nevertheless these anucleated cells regulate a number of gene expressions as well as posttranscriptional and postranslational modifications of proteins. We evaluated which genes are transcribed in mature erythrocytes. Experiment Overall Design: Seven independent samples from healthy human donors were analyzed. Genes that had a detection call "present" in all seven array experiments were selected for further analysis.

2008-06-12 | E-GEOD-3674 | biostudies-arrayexpress

Gallus gallus isolate:Leghorn

Project description:Gallus gallus isolate:Leghorn Raw sequence reads

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Gene expression profile at liver tissue of White Leghorn and four Korean native chickens

Project description:To characterize breed-specific difference among four Korean native chicken breeds and White Leghorn, we measured their transcriptomes at liver tissue using Affymetrix Chicken gene 1.0 ST array platform.

2015-12-31 | GSE63389 | GEO

Chicken erythrocytes stimulated with LPS, PGN and Poly(I:C)

2011-11-22 | GSE33813 | GEO

Chicken erythrocytes stimulated with LPS, PGN and Poly(I:C)

Project description:Erythrocytes represent the most abundant cell type of the bloodstream in all vertebrates. The principal feature that differenciates erythrocytes of non-mammals is that unlike mammals they mantain the nucleus in their terminal differentiation. While the main function associated to erythrocytes is the oxygen and carbon dioxide transport, some other functions, no less important, have been attributed to these cells. The focus of this study was to investigate the response of cultured chicken erythrocytes to bacterial lipopolysaccharide (LPS), bacterial peptidoglycan (PGN) and to the analog viral dsRNA Poly(I:C) using a comercial microarray platform from Agilent. Chicken erythrocytes were isolated from blood by twice Ficoll 1.007 density gradient centrifugations. For primary cell culture, erythrocytes were resuspended in DMEM (PAA Laboratories) supplemented with 10% heat-inactivated fetal bovine serum (FBS, PAA Laboratories) and the antibiotic Primocin (100 μg/ml, Invivogen) at a density of 7.5x106 cells/ml in six well cell culture plates (NUNC) and cultured at 37ºC and 5% CO2. Erythrocytes were stimulated with LPS from E. coli (serotype 0111:B4, Sigma) and Poly(I:C) (Invivogen) at 50 μg/ml, and with peptidoglycan from E.coli (0111:B4, Invivogen) at 5 μg/ml. All culture plates were incubated for 12h. Total RNA was extracted from the cultures using 1 ml of Tri Reagent (Sigma) following the manufacturer’s instructions with minor modifications. Quantity and integrity was analyzed by Nanodrop1000 (ThermoScientific) and Bioanalyzer 2100 (Agilent Technologies) respectively. Three biological replicates were used.

2011-11-22 | E-GEOD-33813 | biostudies-arrayexpress

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