Similar Datasets
Project description:Enterotoxin-producing C. perfringens type A is a common cause of food poisonings. The cpe encoding the enterotoxin can be chromosomal (genotype IS1470) or plasmid-borne (genotypes IS1470-like-cpe or IS1151-cpe). The chromosomal cpe-carrying C. perfringens are a more common cause of food poisonings than plasmid-borne cpe-genotypes. The chromosomal cpe-carrying C. perfringens type A strains are generally more resistant to most food-processing conditions than plasmid-borne cpe-carrying strains. On the other hand, the plasmid-borne cpe-positive genotypes are more commonly found in human feces than chromosomal cpe-positive genotypes, and humans seem to be a reservoir for plasmid-borne cpe-carrying strains. Thus, it is possible that the epidemiology of C. perfringes type A food poisonings caused by plasmid-borne and chromosomal cpe-carrying strains is different. A DNA microarray was designed for analysis of genetic relatedness between the different cpe-positive and cpe-negative genotypes of C. perfringens strains isolated from human, animal, environmental and food samples. The DNA microarray contained two probes for all protein-coding sequences in the three genome-sequenced strains (C. perfringens type A strains 13, ATCC13124, and SM101). The chromosomal and plasmid-borne C. perfringens genotypes were grouped into two distinct clusters, one consisting of the chromosomal cpe-genotypes and the other consisting of plasmid-borne cpe-genotypes. Analysis of the variable gene pool complemented with the growth studies demonstrate different carbohydrate and amine metabolism in the chromosomal and plasmid-borne cpe-carrying strains, suggesting different epidemiology of the cpe-positive C. perfringens strain groups.
2012-03-01 | GSE30954 | GEO
Project description:Enterotoxin-producing C. perfringens type A is a common cause of food poisonings. The cpe encoding the enterotoxin can be chromosomal (genotype IS1470) or plasmid-borne (genotypes IS1470-like-cpe or IS1151-cpe). The chromosomal cpe-carrying C. perfringens are a more common cause of food poisonings than plasmid-borne cpe-genotypes. The chromosomal cpe-carrying C. perfringens type A strains are generally more resistant to most food-processing conditions than plasmid-borne cpe-carrying strains. On the other hand, the plasmid-borne cpe-positive genotypes are more commonly found in human feces than chromosomal cpe-positive genotypes, and humans seem to be a reservoir for plasmid-borne cpe-carrying strains. Thus, it is possible that the epidemiology of C. perfringes type A food poisonings caused by plasmid-borne and chromosomal cpe-carrying strains is different. A DNA microarray was designed for analysis of genetic relatedness between the different cpe-positive and cpe-negative genotypes of C. perfringens strains isolated from human, animal, environmental and food samples. The DNA microarray contained two probes for all protein-coding sequences in the three genome-sequenced strains (C. perfringens type A strains 13, ATCC13124, and SM101). The chromosomal and plasmid-borne C. perfringens genotypes were grouped into two distinct clusters, one consisting of the chromosomal cpe-genotypes and the other consisting of plasmid-borne cpe-genotypes. Analysis of the variable gene pool complemented with the growth studies demonstrate different carbohydrate and amine metabolism in the chromosomal and plasmid-borne cpe-carrying strains, suggesting different epidemiology of the cpe-positive C. perfringens strain groups. Array CGH. Two-color hybridizations on 8x15K Agilent arrays. Eight reference strain hybridizations. Normalization was based on log-ratios against the reference strain. For each sample, 8 normalization factors were calculated, one against each reference hybridization, and the median normalization factor was used. This was repeated for each sample hybridization separately.
2012-03-01 | E-GEOD-30954 | biostudies-arrayexpress
Project description:The choroid plexus (CP) secretes cerebrospinal fluid and is critical for the development and function of the brain. In the telencephalon, the CP epithelium (CPe) arises from the Wnt- and Bmp- expressing cortical hem. We examined the role of canonical Wnt signaling in CPe development and report that the mouse and human embryonic CPe expresses molecules in this pathway. Either loss of function or constitutive activation of β-catenin, a key mediator of canonical Wnt signaling, causes a profound disruption of mouse CPe development. Loss of β-catenin results in a dysmorphic CPe, while constitutive activation of β-catenin causes a loss of CPe identity and a transformation of this tissue to a hippocampal-like identity. Aspects of this phenomenon are recapitulated in human embryonic stem cell (hESC)-derived organoids. Our results indicate that canonical Wnt signaling is required in a precisely regulated manner for normal CP development in the mammalian brain.
2021-11-01 | GSE162784 | GEO
Project description:Long-time persistance and evolution of CPE in hospital wastewater
| PRJNA906350 | ENA
Project description:They aim of the study is to identify targets of Carboxypeptidase E (CPE) as well as signaling cascades that are affected by CPE which are specific for transmitting its anti-migratory effects in glioma cells by overexpressing CPE and using transcriptomics profiling of mRNAs and microRNAs.
2017-11-29 | E-MTAB-5297 | biostudies-arrayexpress
Project description:They aim of the study is to identify targets of Carboxypeptidase E (CPE) as well as signaling cascades that are affected by CPE which are specific for transmitting its anti-migratory effects in glioma cells by overexpressing CPE and using transcriptomics profiling of mRNAs and microRNAs.
2017-11-29 | E-MTAB-5299 | biostudies-arrayexpress
Project description:We investigated the gene expression of the mouse CPE. We isolated CPE cells from three mouse brains with laser dissection microscopy. Next, we performed RNA isolation, amplification, labeling and hybridization against 44k Agilent microarrays.
2013-09-27 | GSE49973 | GEO
Project description:A microarray analysis was performed to compare the global gene expression profile between C-CPE treated- and untreated- SKOV-3 ovarian cancer cells. SKOV-3 cells were treated with or without C-CPE for 72 hours, and total RNA was extracted and microarray was perfomed to compare the gene profiling changes between C-CPE treated- and untreated- cells. The experiment was performed in triplicate.
2010-06-23 | E-GEOD-22421 | biostudies-arrayexpress
Project description:We investigated the gene expression of the mouse CPE. We isolated CPE cells from three mouse brains with laser dissection microscopy. Next, we performed RNA isolation, amplification, labeling and hybridization against 44k Agilent microarrays. We performed the microarrays against a common reference sample, which was mouse RPE/choroid RNA. We performed 3 mouse CPE replicates from 3 different mouse from the same strain, namely C57BL/6 .
2013-09-27 | E-GEOD-49973 | biostudies-arrayexpress
Project description:Whole genome profiling of DNA methylation in Ciliary derived stem/progenitor cells and differentiated cells 6 samples total, 3 with CPE derived neurospheres and 3 with CPE derived differentiated progeny.
2016-07-04 | E-GEOD-64546 | biostudies-arrayexpress