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MiRNA-seq of miRNAs expression in aorta samples of F. nucleatum-infected mice

ABSTRACT: Periodontitis is an independent risk factor for atherosclerosis, and F. nucleatum is one of the periodontal pathogens. Several studies have confirmed that miRNAs can affect all aspects of AS disease progression, including lipid metabolism, foam cell formation, cell necrosis, etc. However, no studies have explored whether F. nucleatum can affect AS disease progression by regulating miRNA expression. In this study, we intend to acquire miRNA expression profiles of aorta samples of AS mice by next-generation sequencing(NGS) and perform bioinformatics analysis to compare the differential expression of miRNAs in the F. nucleatum group and the Control group. Results revealed that 16 microRNAs differentially expressed, of which 13 miRNAs expression were down-regulated and 3 miRNAs expression were up-regulated. GO enrichment analysis showed that they were related to negative regulation of superoxide anion production, protein binding and positive regulation of myocardial apoptosis. KEGG enrichment analysis showed that they were related to necrotizing apoptosis, neurotrophic factor signaling pathway, Nod-like receptor signaling pathway, apoptosis, Wnt signaling pathway, Ras signaling pathway and autophagy, etc. This suggests that F. nucleatum may regulate AS progression through miRNAs.

ORGANISM(S): Mus musculus

PROVIDER: GSE225590 | GEO | 2023/02/22

REPOSITORIES: GEO

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Genome-wide analysis of differentially expressed profiles of mRNAs, lncRNAs and circRNAs in aorta samples of F. nucleatum-infected mice

Project description:Periodontitis is an independent risk factor for atherosclerosis, and F. nucleatum is one of the periodontal pathogens. Several studies have confirmed that non-coding RNAs could affect all aspects of AS disease progression, including lipid metabolism, foam cell formation, cell necrosis, etc. However, no studies have explored whether F. nucleatum could affect AS disease progression by regulating non-coding RNAs. In this study, we intend to acquire mRNAs, lncRNAs and circRNAs expression profiles of aorta samples of AS mice from the F. nucleatum group and the Control group by next-generation sequencing(NGS) and perform bioinformatics analysis. Results revealed that 465 mRNA expression were up-regulated and 382 mRNA expression were down-regulated significantly. Some lncRNAs and circRNAs could suppress the binding of miRNA with target genes in post-transcriptional regulation. By integrating with DE-miRNAs-DEGs pairs and screening the common miRNAs, and mRNAs, lncRNAs, circRNAs that have targeted and negatively correlated relationship with the common miRNAs, lncRNA-miRNA-mRNA (including 34 DE-miRNAs, 42 DE-lncRNAs, and 111 DE-mRNAs) and circRNA-miRNA-mRNA (including 19 DE-miRNAs, 49 DE-circRNAs, and 87 DE-mRNAs) regulatory co-expression networks were constructed. GO enrichment analysis was performed on the differentially expressed mRNAs, which were found to be related to molecular functions, biological processes and cellular components such as protein binding, nucleus, postsynaptic dense zone, protein phosphorylation. KEGG analysis showed that they were related to ErbB signaling pathway, neurotrophic factor signaling pathway, glucagon signaling pathway and apoptosis signaling pathway. This suggested that F. nucleatum could promote the development of atherosclerosis through non-coding RNAs network regulation.

2023-02-22 | GSE225589 | GEO

Genome-wide analysis of differentially expressed profiles of miRNAs, mRNAs, lncRNAs and circRNAs in F. nucleatum infection

Project description:F. nucleatum is an opportunistic pathogen that usually colonize in oral cavity, thereby closely associated with the development of periodontitis.However, the immune regulation mechanism of F. nucleatum to macrophage’s function in disease progress has not been clearly elucidated.Long non-coding RNA (lncRNA) and circular RNA (circRNA) were discovered to play an important role in regulating occurrence and progression of many diseases and identified as effective biomarkers for diagnosis and prognosis of several diseases. In the present study, the expression profiles of mRNA, lncRNA and circRNA associated with F. nucleatum infection were investigated for the first time. The results revealed that the expressions of 375 mRNAs, 64 lncRNAs, and 180 circRNAs were altered during F. nucleatum infection. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) biological pathway analysis showed that the target genes were mainly involved in the MAPK signaling pathway, Toll-like receptor signaling pathway, NF-kappa B signaling pathway and apoptosis. Conclusions: The present study firstly provides the expression profiles of mRNAs, lncRNAs and circRNAs during F. nucleatum infection, and describes a novel perspective on the potential roles of lncRNAs and circRNAs underlying the pathogenesis mechanism of F. nucleatum infection.

2021-12-13 | GSE190606 | GEO

The effect of blood on Fusobacterium nucleatum

Project description:Fusobacterium nucleatum is a Gram-negative oral bacterial species associated with periodontal disease progression. As periodontal disease progresses, it is known F. nucleatum coaggregated with blood is frequently detected in the gingival crevice. However, it is largely unknown whether these interactions between F. nucleatum and blood induce a particular genetic response. We tested the cultures of F. nucleatum ATCC 25586 with or without blood in a semi-defined growth medium by microarray analysis and found 14 genes that were affected after only about 4hr. of adhered blood. Then, we selected 7 genes that changed significantly and tested these genes via real-time RT-PCR to confirm the validity of the microarray results. As a result, one amino sugar-binding protein on the membrane of F. nucleatum was especially expressed high via both microarray and real-time RT-PCR. Based upon these data, it appears that the protein on the F. nucleatum membrane binds and transfers the amino sugar only under blood conditions. This study aims to determine the effect of blood on the gene expression profiling of F. nucreatum. The study contains 2 separate experiments that both measure the cultures without or with blood. The samples with blood contain 9% and 33% blood.

2012-09-01 | E-GEOD-36410 | biostudies-arrayexpress

The effect of blood on Fusobacterium nucleatum

2012-09-01 | GSE36410 | GEO

Characterization of the autoaggregation response of Fusobacterium nucleatum

Project description:Fusobacterium nucleatum is a Gram negative oral bacterial species associated with periodontal disease progression. This species is perhaps best known for its ability to adhere to a vast array of other bacteria and eukaryotic cells. Numerous studies of F. nucleatum have examined various coaggregation partners and inhibitors, but it is largely unknown whether these interactions induce a particular genetic response. We tested coaggregation between F. nucleatum ATCC strain 25586 and various species of Streptococcus in the presence of a semi-defined growth medium containing saliva. We found that this condition could support efficient coaggregation, but surprisingly also stimulated a similar degree of autoaggregation. We further characterized the autoaggregation response, since few reports have examined this in F. nucleatum. After screening several common coaggregation inhibitors, we identified L-lysine as a competitive inhibitor of autoaggregation. We performed a microarray analysis of the planktonic vs. autoaggregated cells and found nearly 100 genes that were affected after only about 60 min. of aggregation. We tested a subset of these genes via real-time RT-PCR and confirmed the validity of the microarray results. Some of these genes were also found to be inducible in cell pellets created by centrifugation. Based upon these data, it appears that autoaggregation activates a genetic program that may be utilized for growth in a high cell density environment, such as the oral biofilm. The study aims to determine the effect of autoaggregation upon the transcriptome. The study contains 2 separate experiments that both measure dispersed (i.e. non-aggregated) vs. aggregated cells and each experiment was performed in duplicate. Samples with no added components other than medium were dispersed, samples containing 25% saliva were aggregated, and samples containing 25% saliva + 50mM L-lysine remained dispersed.

2009-10-15 | E-GEOD-18554 | biostudies-arrayexpress

Comparison of Fusobacterium Nucleatum stimulated and unstimulated neutrophils

Project description:Neutrophils are known to be stimulated by different periodontal bacteria to produce reactive oxygen species and cytokines. It is inportant to investigate the gene changes made by bacteria of importance, of which, for periodontal disease, fusobaterium nucleatum is one. we used microarrays to investigate gene experssion changes in peripheral blood neutrophils werwhich e stimulated with or with out Fusobacterium Nucleatum (10953). Neutrophils from periodonatlly healthy individuals (n=4) were isolated and stimulated for 3hrs with or without fusobaterium nucleatum (10953). RNA was then extracted from these and pooled before hybridization on Affymetrix microarrays

2010-07-20 | E-GEOD-20151 | biostudies-arrayexpress

Expression data of miRNA profile from colorectal cancer and the adjacent normal tissues infected with F. nucleatum

Project description:Expression data of miRNA profile from colorectal cancer and the adjacent normal tissues infected with F. nucleatum. Colorectal cancer(CRC) is among the most common cancer types in the world and one of the most lethal cancers. Fusobacterium nucleatum (F. nucleatum) plays an etiologic role in the development of colorectal cancer, but specific tumor molecules involved in the progression of CRC induced by F. nucleatum is not clear. This study investigated some miRNAs and the genes involved in the progression of F. nucleatum-induced colorectal cancer by Affymetrix miRNA microarray technology. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated and down-regulated genes between Colorectal cancer and the adjacent normal tissues (CONTROL) infected without F. nucleatum . The miRNA array was performed using the affymetrix GeneChip® miRNA 3.0 Array (Affymetrix, Santa Clara, California, United States). The chip was processed using a commercial Affymetrix array service (GeneTech Biotechnology Limited Company, Shanghai, China). The affymetrix GeneChip® miRNA 3.0 Array contains 2,999 probe sets unique to human, mouse and rat pre-miRNA hairpin sequences, 2,216 human snoRNA and scaRNA probe sets and covers 153 organisms (19,724 probe sets). Raw data sets were extracted from all Cel files (raw intensity file) after scanning of slides. These raw data sets were separately analyzed using Expression Console and GeneSpring GX12.5 software followed by differential miRNA expression, fold change & cluster analysis.

2018-11-06 | GSE122182 | GEO

Influence of dual-species coaggregation on transcriptional changes of Streptococcus gordonii and Fusobacterium nucleatum subsp. polymorphum

Project description:Interspecies coaggregation promotes transcriptional changes of oral bacteria, contributing to the development of structurally balanced biofilms as well as oral diseases such as periodontitis. Streptococcus gordonii (S. gordonii) is an early colonizer of the oral cavity, and Fusobacterium nucleatum (F. nucleatum) may act as a bridge adhering to both early and late oral colonizers. These two species were commonly detected in healthy and periodontitis-diseased oral sites and could interact with immune cells such as macrophages. However, little research explored how intergeneric coaggregation affected transcriptional changes in S. gordonii and F. nucleatum subsp. polymorphum and how these gene changes might affect both species’ pathogenicity. The present study investigated transcriptional changes of both species in response to dual-species physical association using dual RNA-seq. Results indicated that after 30-min dual-species coaggregation, 148 genes were significantly up-regulated, and 124 genes were significantly down-regulated in S. gordonii. A total of 154 genes were significantly down-regulated, and 10 genes were significantly up-regulated in F. nucleatum subsp. polymorphum. A majority of up-regulated S. gordonii genes were involved in the biosynthesis and export of cell-wall proteins and the pathway of carbohydrate metabolism, and a group of down-regulated S. gordonii genes were associated with fatty acid biosynthesis and peptidoglycan biosynthesis. The transcriptome profiles indicated that the interspecies coaggregation led to a reduced level of DNA repair and lipopolysaccharides virulence in F. nucleatum subsp. polymorphum. The present study revealed that dual-species coaggregation induced a wide array of gene changes in S. gordonii and F. nucleatum subsp. polymorphum, enhancing S. gordonii’s adherence ability and attenuating F. nucleatum subsp. polymorphum's ability to produce LPS.

2021-05-20 | GSE164282 | GEO

Fusobacterium nucleatum intraoral infection and periodontitis in C57BL/6J mice

Project description:Individual miRNA analyzed were successfully constructed through NanoString technology of a total of 577 mouse miRNAs in 20 number of SHAM mice and 20 number of Fusobacterium nucleatum infected mice, which have been euthanized on the end of 16 weeks infection study.

2023-12-04 | GSE248487 | GEO

RNA-seq of PBT2-Zn treated Fusobacterium nucleatum cells in vitro

Project description:To investigate the effect of the Zn ionophore, PBT2, on the transcriptomic response of Fusobacterium nucleatum ATCC 25586, RNA was extracted from bacterial samples which had been treated as follows: Untreated (0.006% DMSO v/v), DMSO-Zn treated (0.006% DMSO v/v + 200 uM ZnSO4), or PBT2-Zn treated (0.125 ug/mL PBT2 + 200 uM ZnSO4) (DMSO was the vehicle control). RNA samples were collected at 0h, 0.5h, and 1h post challenge in biological triplicate and sequenced using Illumina HiSeq platform. We mapped sequences to the reference genome F. nucleatum subsp. nucleatum ATCC 25586 and performed DEseq2 analysis to determine differentially expressed genes across time and treatment.

2021-07-15 | E-MTAB-8681 | biostudies-arrayexpress

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