Cryptosporidium andersoni
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA354101 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:It has been reported that Cryptosporidium parvum, a species of a protozoan frequently isolated from humans and animals, is able to induce digestive adenocarcinoma in a rodent model. Consistently, some epidemiological studies have reported an association with cryptosporidiosis in patients with colorectal adenocarcinoma. However, the correlation between cryptosporidiosis and human digestive cancer remains unclear at this time, and it is not known whether this intracellular parasite, considered an opportunistic agent, is able to induce gastrointestinal malignancies in humans. In order to add new arguments for a probable association between cryptosporidiosis and digestive human cancer, the main aim of this study is to determine prevalence and to identify species of Cryptosporidium among a French digestive cancer population.
| 2334959 | ecrin-mdr-crc
Project description:Cryptosporidium is a protozoan parasite that infects the gastrointestinal tract of humans and animals. It is an important opportunistic pathogen in children under the age of two and immunocompromised adults. There is currently no fully effective therapy or vaccine. Long noncoding RNAs are RNA transcripts, over 200 nt in length, that are capable of regulating gene expression through both transcriptional and translational methods. Our lab previously identified a panel of host long noncoding RNAs are that upregulated during Cryptosporidium infection, including NR_033483. Further experiments indicated this host long noncoding RNA may be playing a pro-parasitic role during infection. We hypothesized that NR_033483 is regulating the expression of host immune genes to aid the parasite. In this study, we treated intestinal epithelial cells with an siRNA targeting NR_033483 to knockdown its expression, or a scrambled siRNA control, and infected the samples with Cryptosporidium. We sought to determine changes in host gene expression when NR_033483 was knocked down verse control samples.
2023-05-31 | E-MTAB-12972 | biostudies-arrayexpress
Project description:Whole genome sequencing of Cryptosporidium andersoni
| PRJNA308889 | ENA
Project description:Vanee2010 - Genome-scale metabolic model of
Cryptosporidium hominis (iNV213)
This model is described in the article:
A genome-scale metabolic
model of Cryptosporidium hominis.
Vanee N, Roberts SB, Fong SS, Manque
P, Buck GA.
Chem. Biodivers. 2010 May; 7(5):
1026-1039
Abstract:
The apicomplexan Cryptosporidium is a protozoan parasite of
humans and other mammals. Cryptosporidium species cause acute
gastroenteritis and diarrheal disease in healthy humans and
animals, and cause life-threatening infection in
immunocompromised individuals such as people with AIDS. The
parasite has a one-host life cycle and commonly invades
intestinal epithelial cells. The current genome annotation of
C. hominis, the most serious human pathogen, predicts 3884
genes of which ca. 1581 have predicted functional annotations.
Using a combination of bioinformatics analysis, biochemical
evidence, and high-throughput data, we have constructed a
genome-scale metabolic model of C. hominis. The model is
comprised of 213 gene-associated enzymes involved in 540
reactions among the major metabolic pathways and provides a
link between the genotype and the phenotype of the organism,
making it possible to study and predict behavior based upon
genome content. This model was also used to analyze the two
life stages of the parasite by integrating the stage-specific
proteomic data for oocyst and sporozoite stages. Overall, this
model provides a computational framework to systematically
study and analyze various functional behaviors of C. hominis
with respect to its life cycle and pathogenicity.
This model is hosted on
BioModels Database
and identified by:
MODEL1507180071.
To cite BioModels Database, please use:
BioModels Database:
An enhanced, curated and annotated resource for published
quantitative kinetic models.
To the extent possible under law, all copyright and related or
neighbouring rights to this encoded model have been dedicated to
the public domain worldwide. Please refer to
CC0
Public Domain Dedication for more information.
2015-07-30 | MODEL1507180071 | BioModels
Project description:Cryptosporidium parvum is an important opportunistic parasite pathogen for immunocompromised individuals and a common cause of diarrhea in young children in developing countries. Certain parasite molecules can be delivered into host epithelial cells and may act as effector molecules for parasite intracellular development. This study aims to measure the impact of transfection of a parasite low-protein coding potential RNA transcript, Cdg7_FLc_0990, on the transcriptome profile in intestinal epithelial cells. Human intestinal epithelial INT (FHs 74 Int) cells were grown to 80% confluence and transfected with the Cdg7_FLc_0990 full-length or the empty vector for 48h. Total RNA was collected for the genome-wide analysis. RNA from INT cells following C. parvum infection for 48h and from cell of the non-infected control was also collected for the analysis. The Agilent SurePrint G3 Human Gene Expression Microarray (G4851B) was used for the genome-wide analysis, which provides full coverage of genes and transcripts with the most up-to-date content, including mRNAs and lincRNAs (http://www.chem.agilent.com/store/en_US/Prod-G4851B/G4851B)
2017-08-22 | GSE87047 | GEO
Project description:Cryptosporidium parvum is an important opportunistic parasite pathogen for immunocompromised individuals and a common cause of diarrhea in young children in developing countries. Certain parasite molecules can be delivered into host epithelial cells and may act as effector molecules for parasite intracellular development. This study aims to measure the impact of transfection of two parasite low-protein coding potential RNA transcripts, cdg2_FLc_0220 and cdg7_FLc_1000, on the transcriptome profile in intestinal epithelial cells. Human intestinal epithelial INT (FHs 74 Int) cells were grown to 80% confluence and transfected with the cdg2_FLc_0220 or cdg7_FLc_1000full-length or the empty vector for 48h. Total RNA was collected for the genome-wide analysis. The Agilent SurePrint G3 Human Gene Expression Microarray (G4851B) was used for the genome-wide analysis, which provides full coverage of genes and transcripts with the most up-to-date content, including mRNAs and lincRNAs (http://www.chem.agilent.com/store/en_US/Prod-G4851B/G4851B).
2018-02-21 | GSE94128 | GEO
Project description:In this study, nine C. muris and 43 C. andersoni isolates from various animals in China were subtyped by a multilocus sequence typing (MLST) tool. DNA sequence analyses showed the presence of 1-2 subtypes of C. muris and 2-6 subtypes of C. andersoni at each of the four loci (MS1, MS2, MS3, and MS16), nine of which represented new subtypes. Altogether, two C. muris and 10 C. andersoni MLST subtypes were detected. Linkage disequilibrium analysis indicated although the overall population structure of the two parasites was clonal, the Chinese C. andersoni in cattle has an epidemic structure. Three and two clusters were produced in the C. muris and C. andersoni populations by Structure 2.3.3 analysis, with Chinese C. muris and C. andersoni substructures differing from other countries. Thus, this study suggested the prevalence of C. andersoni in China is not attributed to the introduction of dairy cattle. More studies involving more genetic loci and systematic sampling are needed to better elucidate the population genetic structure of C. muris and C. andersoni in the world and the genetic basis for the difference in host specificity among the two most common gastric parasites.
| S-EPMC3427161 | biostudies-literature
Project description:Cryptosporidium parvum is an important opportunistic parasite pathogen for immunocompromised individuals and a common cause of diarrhea in young children in developing countries. Infection by this parasite causes significant alterations in the gene expression profiles in infected host cells. This study aims to measure the genomic wide alterations in gene expression profiles in host intestinal epithelial cells following C. parvum infection. Mouse intestinal epithelial (IEC4.1) cells were grown to 80% confluence and exposed to C. parvum infection for 24h. Total RNA was collected for the genome-wide analysis. The Agilent SurePrint G3 mouse Gene Expression Microarray (G4852A) was used for the genome-wide analysis, which provides full coverage of genes and transcripts with the most up-to-date content, including mRNAs and lincRNAs (http://www.chem.agilent.com/store/en_US/Prod-G4852A/G4852A).
2018-12-19 | GSE112247 | GEO
Project description:Although widely used for the characterization of the transmission of intestinal Cryptosporidium spp., genotyping tools are not available for C. muris and C. andersoni, two of the most common gastric Cryptosporidium spp. infecting mammals. In this study, we screened the C. muris whole-genome sequencing data for microsatellite and minisatellite sequences. Among the 13 potential loci (6 microsatellite and 7 minisatellite loci) evaluated by PCR and DNA sequencing, 4 were eventually chosen. DNA sequence analyses of 27 C. muris and 17 C. andersoni DNA preparations showed the presence of 5 to 10 subtypes of C. muris and 1 to 4 subtypes of C. andersoni at each locus. Altogether, 11 C. muris and 7 C. andersoni multilocus sequence typing (MLST) subtypes were detected among the 16 C. muris and 12 C. andersoni specimens successfully sequenced at all four loci. In all analyses, the C. muris isolate (TS03) that originated from an East African mole rat differed significantly from other C. muris isolates, approaching the extent of genetic differences between C. muris and C. andersoni. Thus, an MLST technique was developed for the high-resolution typing of C. muris and C. andersoni. It should be useful for the characterization of the population genetics and transmission of gastric Cryptosporidium spp.
| S-EPMC3020410 | biostudies-literature
Project description:We isolated oocysts that resemble Cryptosporidium andersoni from cattle grazing on a farm in Japan. The partial sequences of genes from the isolate were coincident with published sequences of genes of C. andersoni. Since the isolate was able to infect SCID mice, the isolate appears to be a novel type of C. andersoni.
| S-EPMC152376 | biostudies-literature