Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Integrating lncRNAs and mRNAs expression profiles in penicillin-induced persistent chlamydial infection in HeLa cells

ABSTRACT: Chlamydia trachomatis (C. trachomatis) is a major etiological agent of sexually transmitted infection. Some stressing conditions can result in persistent chlamydial infection, which is thought to associate with severe complications such as ectopic pregnancy and tubal factor infertility. Long noncoding RNAs (lncRNAs) have been identified as key modulators in many biological processes. However, the role of lncRNAs in persistent chlamydial infection is still unclear. In this study, we used lncRNA and mRNA microarray to identify the global lncRNAs and mRNAs expression in penicillin-induced persistent chlamydial infection in HeLa cells as well as the control group (HeLa cells without C. trachomatis infection). Among 1005 differentially expressed lncRNAs, 585 lncRNAs were upregulated and 420 downregulated in persistent chlamydial infection, while 410 mRNAs were identified to express differentially, of which 113 mRNAs were upregulated and 297 downregulated. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis with differentially expressed genes were performed. We then constructed the lncRNA-miRNA-mRNA competing endogenous RNAs (ceRNAs) network. Four mRNAs were validated to be changed by quantitative real-time PCR which were correlated with the microarray result. Integration of protein-protein interaction (PPI) network was constructed and hub genes were identified. These findings provide a new perspective on the molecular mechanism of penicillin-induced persistent chlamydial infection.

ORGANISM(S): Homo sapiens

PROVIDER: GSE180478 | GEO | 2022/02/14

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Integrating lncRNAs and mRNAs expression profiles in penicillin-induced persistent chlamydial infection in HeLa cells

Project description:Integrating lncRNAs and mRNAs expression profiles in penicillin-induced persistent chlamydial infection in HeLa cells

| PRJNA748386 | ENA

Microarray analysis of long noncoding RNA expression profile in HeLa cells infected Chlamydia trachomatis

Project description:Chlamydia trachomatis (C. trachomatis) is an intracellular bacterium, and is one of the main pathogens that cause sexually transmitted infections worldwide. Long non-coding RNAs (lncRNAs) have become vital regulators in many biological processes. However, few studies have shown that lncRNAs take part in the pathogenesis of C. trachomatis. Here, we used microarrays to study the expression profiles of lncRNAs and mRNAs in HeLa cells at 12, 24, and 40 hours pot-infection (hpi). Our study provides evidence that lncRNAs are involved in the interaction between C. trachomatis and hosts.

2021-07-28 | GSE165628 | GEO

Human enteroendcrine cell responses to infection with Chlamydia trachomatis

Project description:The aim of this study was to perform a microarray analysis of the response pattern of EEC from both large and small bowel to infection in vitro, using Chlamydia trachomatis infection as a model. Two human EEC lines: LCC-18, derived from a neuroendocrine colonic tumour, and CNDT-2, derived from a small intestinal carcinoid, were infected with C. trachomatis serovar LGV II strain 434 (ATCC VR-902B). Penicillin G was used to induce persistent infection. Gene expression levels in infected and persistently infected EEC cells were investigated by microarray analysis

2014-06-03 | E-GEOD-58151 | biostudies-arrayexpress

Infection with Chlamydia trachomatis reprograms human cells through inhibition of protein synthesis

Project description:The obligate intracellular bacterium Chlamydia trachomatis replicates in a cytosolic vacuole in human epithelial cells. Infection of human cells with C. trachomatis causes substantial changes to many host cell signalling pathways but the molecular basis of such influence is not well understood. Studies of gene transcription of the infected cell have shown altered transcription of many host cell genes, indicating a transcriptional response of the host cell to the infection. We here describe that infection of human cells with C. trachomatis as well as infection of murine cells with C. muridarum profoundly inhibits protein synthesis of the infected host cell. This inhibition was accompanied by changes to the ribosomal profile of the infected cell indicative of a block of translation initiation, most likely as part of a stress response. The chlamydial protease CPAF also reduced protein synthesis in uninfected cells although CPAF-deficient C. trachomatis showed no defect in this respect. Analysis of polysomal mRNA as a proxy of actively transcribed mRNA identified a number of biological processes differentially affected by chlamydial infection. Mapping of differentially regulated genes onto a protein interaction network identified nodes of up- and down-regulated networks during chlamydial infection. Proteomic analysis of protein synthesis further suggested translational regulation of host cell functions by chlamydial infection. These results demonstrate reprogramming of the host cell during chlamydial infection through the alteration of protein synthesis.

2019-05-21 | GSE114556 | GEO

Microarray analysis of long noncoding RNA expression profile in pORF5-transfected HeLa cells

Project description:Numerous studies have provided evidence for the involvement of lncRNAs in bacterial infections, including Mycobacterium tuberculosis, Helicobacter pylori, Listeria monocytogenes, and so forth. However, few studies have evaluated the alternation of lncRNAs in obligate intracellular bacterium C. trachomatis.The molecular mechanisms underlying pathogenesis of C. trachomatis are still elusive, and lncRNAs may provide new insights into the potential mechanisms. pORF5 (Accession number: NP_040384) is the only secreted protein in eight plasmid-encoded proteins in C. trachomatis. Our previous studies also verified that pORF5 influenced the expression of host proteins.Here, we performed a microarray analysis to detect the global lncRNAs and mRNAs expression in pORF5-transfected HeLa cells, and tried to identify pORF5-related lncRNAs. Our study may help to understand the interplay between lncRNAs and coding genes anticipated in the pathogenesis of C. trachomatis.

2020-07-14 | GSE154341 | GEO

Genome-wide analysis of Chlamydia trachomatis-infected cells

Project description:Chlamydia trachomatis is the most common sexually transmitted infection and the bacterial agent of trachoma globally. C. trachomatis undergoes a biphasic developmental cycle involving an infectious elementary body and a replicative reticulate body. Little is currently known about the expression of host cell mRNAs, lncRNAs, and miRNAs at different stages of C. trachomatis development. Here, we performed RNA-seq and miR-seq on HeLa cells infected with C. trachomatis serovar E at 20 hpi and 44 hpi with or without IFN-γ treatment. Our study identified and validated differentially expressed host cell mRNAs, lncRNAs, and miRNAs during infection. Infection at 20 hpi showed the most differential upregulation of both coding and non-coding genes while infection at 44 hpi in the presence of IFN-γ resulted in a dramatic downregulation of a large proportion of genes. Using RT-qPCR, we validated the top 5 stage-specific upregulated mRNAs and miRNAs. One of the commonly expressed miRNAs at all three stages, miR-193b-5p, showed significant expression in clinical serum samples of C. trachomatis-infected patients as compared to sera from healthy controls and HIV-1-infected patients. Furthermore, at 20 hpi we observed significant upregulation of antigen processing and presentation, and T helper cell differentiation pathways whereas T cell receptor, mTOR, and Rap1 pathways were modulated at 44 hpi. Treatment with IFN-γ at 44 hpi showed the regulation of cytokine-cytokine receptor interaction, FoxO signaling, and Ras signaling pathways. Our study documents a role for the stage-specific transcriptional manipulation of the host cell genome and important signaling pathways that are necessary for the survival of pathogen and could serve as potential biomarkers in the diagnosis and management of the disease.

2021-01-13 | GSE158814 | GEO

Early transcriptional landscapes of Chlamydia trachomatis-infected epithelial cells at single cell resolution

Project description:Here we examined host cell gene expression in response to Chlamydia trachomatis infection by applying scRNA-Seq to in vitro C. trachomatis-infected HEp-2 epithelial cells and time-matched uninfected cells over the early chlamydial developmental cycle (3, 6 and 12 hours). We collected 264 single cells across both conditions all time points. The aims of the experiment were examining host cell responses to infection at single cell resolution, and identifying early host cell signatures of infection.

2019-11-19 | GSE132525 | GEO

Quantitative proteomics of the infectious and replicative forms of Chlamydia trachomatis L2

Project description:The obligate intracellular developmental cycle of Chlamydia trachomatis presents significant challenges in defining its proteome. In this study we have applied quantitative proteomics to both the intracellular reticulate body (RB) and the extracellular elementary body (EB) from C. trachomatis. We used C. trachomatis L2 which is a model chlamydial isolate for such a study since it has a high infectivity: particle ratio and there is an excellent quality genome sequence. EBs and RBs (>99% pure) were quantified by chromosomal and plasmid copy number using PCR to determine the concentrations of chlamydial proteins per bacterial cell. RBs harvested at 15h post infection (PI) were purified by three successive rounds of gradient centrifugation. This is the earliest possible time to obtain purified RBs, free from host cell components in quantity, within the constraints of the technology, EBs were purified at 48h PI. We then used two-dimensional reverse phase UPLC to fractionate RB or EB peptides before mass spectroscopic analysis, providing absolute amount estimates of chlamydial proteins.

2016-06-28 | PXD003025 | Pride

Transcriptomes of Chlamydia trachomatis L2 with Conditional GrgA deficiency

Project description:To determine the role that GrgA plays in chlamydial physiology, we constructed a Chlamydia trachomatis mutant that we term L/cgad-peig, in which the chromosomal grgA (ctl0766 or ct504) has been disrupted by Targetron mutagenesis, and the plasmid carries an inducible grgA under the control of anhydrotetracycline (ATC). RNA-Seq analysis was performed for L2/cgad-peig grown with and without ATC.

2023-11-29 | GSE234589 | GEO

A GrgA-Euo-HrcA transcriptional regulatory network controls the growth and development of the obligate intracellular bacterium Chlamydia

Project description:Effects of overexpression of Chlamydia trachomatis transcription factors GrgA, Euo and HrcA on the chlamydial transcriptome were determined.

2021-07-08 | GSE153747 | 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