Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

MicroRNA study of rectal tissue collected from super-shedders vs cattle negative for E. coli O157:H7

ABSTRACT: Total microRNA from rectal tissues of E. coli O157 super-shedders and non-shedders were sequenced using Illumina Hiseq 2000 system. For comparative analysis, differentially expressed microRNAs were identified with edgeR. Two of differentially expressed genes were identified, and one of up-regulated microRNA in super-shedders potentially targets genes related to innate and adaptive immune functions. The findings indicated that microRNA could play a role in super-shedding phenomenon.

ORGANISM(S): Bos taurus

PROVIDER: GSE74627 | GEO | 2016/12/31

SECONDARY ACCESSION(S): PRJNA301031

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Transcriptome analysis of rectal tissues of E. coli O157 super-shedding and E. coli O157 negative cattle

Project description:Total RNA from rectal tissues of E. coli O157 super-shedders and non-shedders were sequenced using Illumina Hiseq 2000 system. For comparative analysis, differentially expressed genes were identified with edgeR. Fifteen of differentially expressed genes were related to innate and adaptive immune functions and were down-regulated in super-shedders, which could be one of reasons for super-shedding phenomenon.

2016-03-20 | GSE67099 | GEO

Host mechanisms potentially associated with foodborne pathogen Escherichia coli O157 shedding in feedlot beef cattle

Project description:Cattle shedding > 10e4 CFU of Escherichia coli O157 per g of feces are defined as super-shedders. RNA-sequencing was performed to identify the transcriptome of tissues, including duodenum, proximal jejunum, distal jejunum, distal jejunum, cecum, spiral colon and descending colon of super-shedder cattle in comparison with non-shedders. The total number of genes detected in gut tissues ranged from 16,846 ± 639 (cecum) to 18,137 ± 696 (distal jejunum), and immune functions were enriched for the transcriptomes of small intestinal tissues, reflecting their greater immune activity than large intestine. Totally 351 differentially expression genes were identified between super-shedders and non-shedders, including 101 up-regulated and 250 down-regulated in super-shedders. Differential gene expression analysis suggested increased T-cell responses and cholesterol absorption in distal jejunum and descending colon, and inhibited B-cell maturation in intestines of super-shedders. distal jejunum of super-shedders. Our findings suggested that host genetics and E. coli O157 activities are involved in super-shedding phenomenon.

2017-08-21 | GSE85277 | GEO

MicroRNAomes of cattle intestinal tissues revealed possible miRNA regulated mechanisms involved in Escherichia coli O157 fecal shedding

Project description:The current study aimed to investigate whether bovine non-coding RNA play a role in regulating E. coli O157 shedding through studying miRNAomes of the whole gastrointestinal tract including duodenum, proximal jejunum, distal jejunum, cecum, spiral colon, descending colon and rectum. The number of miRNAs detected in each intestinal region ranged from 390 ± 13 to 413 ± 49. Compared between SS and NS, the number of differentially expressed (DE) miRNAs ranged from one to eight, and through the whole gut, seven miRNAs were up-regulated and seven were down-regulated in SS. The distal jejunum and rectum were the regions where the most DE miRNAs were identified (8 and 7, respectively). Functional analysis indicated that the bta-miR-378b, bta-miR-2284j and bta-miR-2284d which were down-regulated in both distal jejunum and rectum of SS, the bta-miR-2887 which was down-regulated in rectum of SS, as well as the bta-miR-211 and bta-miR-29d-3p which were up-regulated in rectum of SS were potentially regulatory to host immune functions, including hematological system development and immune cell trafficking. Our findings suggest that the alternation of miRNA expression in the gut of SS may lead to differential regulation in immune functions involved in E. coli O157 super-shedding in cattle.

2018-10-30 | GSE121916 | GEO

MicroRNAomes of cattle intestinal tissues revealed possible miRNA regulated mechanisms involved in Escherichia coli O157 fecal shedding

2018-12-01 | GSE96973 | GEO

Escherichia coli O157:H7 isolate:O157:H7

Project description:Escherichia coli O157:H7 isolate:O157:H7 Genome sequencing

| PRJNA298206 | ENA

Escherichia coli O157:H7 str. SS52

Project description:Escherichia coli O157:H7 super-shedder Genome sequencing

| PRJNA201344 | ENA

Escherichia coli O157:H7 str. SS17

Project description:Escherichia coli O157:H7 Super-shedder Genome Sequencing

| PRJNA200626 | ENA

Escherichia coli O157:H7 : Control vs. PEG8000 treated

Project description:Transcriptional profiling of E.coli O157:H7 cells comparing control untreated cells with PEG8000treated cells

2011-04-02 | GSE28312 | GEO

Transcriptional response of Escherichia coli O157:H7 to cinnamaldehyde

Project description:Cinnamaldehyde is a natural antimicrobial and has been found to be effective against many foodborne pathogens including Escherichia coli O157:H7. Although its antimicrobial effects have been well investigated, limited information is available on its effects at the molecular level. Sublethal treatment at 200 mg/l cinnamaldehyde inhibited growth of E. coli O157:H7 at 37oC and for ≤ 2 h caused cell elongation, but from 2 to 4 h growth resumed and cells reverted to normal length. To understand this transient behaviour, genome-wide transcriptional analysis of E. coli O157:H7 was performed at 2 and 4 h exposure to cinnamaldehyde. Drastically different gene expression profiles were obtained at 2 and 4 h. At 2 h exposure, cinnamaldehyde induced overexpression of many oxidative stress-related genes, reduced DNA replication, and synthesis of protein, O-antigen and fimbriae. At 4 h, many cinnamaldehyde-induced repressive effects on E. coli O157:H7 gene expressions were reversed and oxidatve stress genes were nolonger differentially expressed.

2012-09-08 | GSE40693 | GEO

Transcriptional analysis of Escherichia coli O157:H7 delta yedL in MEM-HEPES

Project description:Deletion of yedL was found to signifcantly decrease type three secretion in EHEC O157:H7. Transcriptional profiles of Escherichia coli O157: H7 and the isogenic yedL mutant were generated and compared.

2017-07-24 | GSE15265 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data