Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Lactate prevents Salmonella enterica biofilm formation by inhibiting curli and cellulose expression

ABSTRACT: Lactate prevents Salmonella enterica biofilm formation by inhibiting curli and cellulose expression

PROVIDER: PRJNA1074366 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Similar Datasets

Lactate prevents Salmonella enterica biofilm formation by inhibiting curli and cellulose expression

Project description:Salmonella enterica serovar Typhimurium (S. Typhimurium) infection triggers an inflammatory response that changes the concentration of luminal metabolites in the gut, resulting in a distinct environment from a healthy one. We recently demonstrated that S. Typhimurium possesses the ability to form biofilms within the host environment and responds to nitrate as a signaling molecule, enabling it to modulate the transition between sessile and planktonic states. To investigate whether S. Typhimurium utilizes additional metabolites to regulate its behavior, our study delved into the impact of inflammatory metabolites on biofilm formation. Employing a transcriptomic approach we unveiled that lactate enhances the transcription of flagella and invasion genes, highlighting the active role of lactate in modulating the transition of S. Typhimurium from biofilm to motile states. All these findings propose that, as occurring with nitrate, lactate is an inflammatory metabolite being used by S. Typhimurium to support virulence.

2024-10-23 | GSE255285 | GEO

Inhibiting or depleting AHCY prevents senescence induction

Project description:Inhibiting or depleting AHCY prevents senescence induction

| PRJNA656198 | ENA

High Cellulose diet impact on gut inflammation

Project description:Dietary cellulose prevents gut inflammation by modulating lipid metabolism and gut microbiota

2019-12-30 | ST001297 | MetabolomicsWorkbench

RACK1 prevents premature differentiation of epidermal progenitors by inhibiting IRF6 expression

Project description:RACK1 prevents premature differentiation of epidermal progenitors by inhibiting IRF6 expression

| PRJNA751366 | ENA

Transcriptional profiling after inhibition of cellulose synthesis by TA and IXB in Arabidopsis thaliana suspension cells

Project description:Transcriptional profiling after inhibition of cellulose synthesis by thaxtomin A and isoxaben in Arabidopsis thaliana suspension cells Perturbations in the cellulose content of the plant cell wall lead to global modifications in cellular homeostasis, as seen in cellulose synthase mutants or after inhibiting cellulose synthesis. In particular, application of inhibitors of cellulose synthesis such as thaxtomin A (TA) and isoxaben (IXB) initiates a programmed cell death (PCD) in Arabidopsis thaliana suspension cells that is dependent on de novo gene transcription. To further understand how TA and IXB activate PCD, a whole genome microarray analysis was performed on mRNA isolated from Arabidopsis suspension cells exposed to TA and IXB. More than 75% of the genes upregulated by TA were also upregulated by IXB, including genes encoding cell wall-related and calcium-binding proteins, defence/stress-related transcription factors, signalling components and cell death-related proteins. Comparisons with published transcriptional analyses revealed an important subset of genes generally induced in response to various biotic and abiotic stress.

2009-08-27 | GSE17824 | GEO

IRF3 prevents colorectal tumorigenesis via inhibiting the nuclear translocation of β-catenin

Project description:IRF3 prevents colorectal tumorigenesis via inhibiting the nuclear translocation of β-catenin

| PRJNA655560 | ENA

Gene expression profiles in rat alveolar macrophages exposure to cellulose nanofibrils, microcrystalline cellulose, and lipopolysaccharide.

Project description:To assess the biological impact of cellulose nanofibrils (CNFs) at the transcriptional level, we conducted whole-genome microarray analyses on rat alveolar macrophages (NR8383) exposed to CNFs with varying physicochemical properties. The findings were compared with those from exposure to microcrystalline cellulose (MCC) and lipopolysaccharide (LPS).

2024-03-31 | GSE241791 | GEO

Identification of genes regulated by L-lactate and by DL-lactate in Lactobacillus plantarum

Project description:L. plantarum is known to possess an L-lactate inducible lactate racemase activity (Goffin et al. 2005. J. Bacteriol. 187:6750). In the present study, microarrays were used in order to identify all genes that are up-regulated by L-lactate, but not by a racemic mixture of D- and L-lactate. A mutant of L. plantarum NCIMB8826 deficient for NAD-dependent L-lactate activity (TF101; Ferain et al. 1994. 176:596), and thus producing no L-lactate, was grown in MRS medium at 28Â°C until mid-exponential phase (OD600nm 0.75). The culture was then divided into 3 sub-cultures. Optically pure sodium L-lactate (200 mM) was added to the first sub-culture (TF101 + L-lac 200 mM). An equimolar mixture of sodium D- and L-lactate (100 mM each) was added to the second sub-culture (TF101 + L/D-lac 200 mM). The third sub-culture was not treated (TF101; reference sample). The three sub-cultures were further incubated at 28Â°C for 1h30 (a time known to be sufficient for induction of lactate racemase activity by L-lactate). Cells were harvested by centrifugation. Microarray data were used ot identify genes that are specifically induced by L-lactate (comparison of TF101 with TF101 + L-lac 200 mM), but not by DL-lactate (comparison of TF101 with T101 + L/D-lac 200 mM). There are no biological replicates.

2013-07-01 | E-GEOD-43518 | biostudies-arrayexpress

Cellulose synthase mutants

Project description:We compared the transcriptome of homozygous mutants for AtCesA4 and AtCesA6 (cellulose synthase genes) to their heterozygous counterparts that have a wild type phenotype. All plants were 4-weeks-old and grown under short day conditions.

2010-04-19 | GSE20221 | GEO

Mechanisms of Biofilm Formation in Two Escherichia coli O157:H7 Lineages

Project description:Two lineages of enterohemorrhagic (EHEC) Escherichia coli O157:H7 (EDL933, Stx1+ and Stx2+) and 86-24 (Stx2+) were investigated in regards to biofilm formation on an abiotic surface. Strikingly, EDL933 strain formed a robust biofilm while 86-24 strain formed no biofilm on either a polystyrene plate or a polyethylene tube. To identify the genetic mechanisms of different biofilm formation in two EHEC strains, DNA microarrays were first performed and phenotypic assays were followed. In the comparison of the EDL933 strain versus 86-24 strain, genes (csgBAC and csgDEFG) involved in curli biosynthesis were significantly induced while genes (trpLEDCB and mtr) involved in indole signaling were repressed. Additionally, a dozen of phage genes were differentially present between two strains. Curli assays using a Congo red plate and scanning electron microscopy corroborate the microarray data as the EDL 933 strain produces a large amount of curli, while 86-24 forms much less curli. Also, the indole production in the EDL933 was 2-times lower than that of 86-24. It was known that curli formation positively regulates and indole negatively regulates biofilm formation of EHEC. Hence, it appears that less curli formation and high indole production in the 86-24 strain are majorly responsible for no biofilm formation.

2011-01-19 | GSE19953 | 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