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Lactiplantibacillus plantarum strain:BD | isolate:intestinal structure

ABSTRACT: Lactiplantibacillus plantarum strain:BD | isolate:intestinal structure Genome sequencing

PROVIDER: PRJNA1144258 | ENA |

REPOSITORIES: ENA

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LACTIPLANTIBACILLUS PLANTARUM STRENGTHENS THE INTESTINAL BARRIER: INVOLVEMENT OF THE ENDOCANNABINOIDOME

Project description:Probiotics have been suggested to ameliorate the function of the intestinal epithelial barrier and so have several mediators and receptors of the expanded endocannabinoid system, the endocannabinoidome (eCBome). Here we cocultured three live strains of Lactiplantibacillus plantarum with intestinal epithelial organoids to study their effects on the gut barrier function and the possible involvement of the eCBome in this effect. All three L.plantarum strains variously reduced the trans-epithelial permeability of intestinal organoids and promoted increased mRNA expression of several tight junction proteins and intestinal barrier proteins. Concomitantly, the three strains upregulated the expression of genes encoding biosynthetic enzymes (i.e., NapePLD, Abdh4, Gde1, Daglb) and receptors (i.e., Cnr1, Cnr2, Gpr55, and Ppara), while concurrently downregulating the expression of two essential catabolic enzymes (i.e. Faah and Naaa), involved in the signaling of several eCBome mediators known for their role in regulating the intestinal epithelial barrier. Selective inhibitors of eCBome mediator degrading enzymes FAAH and MAGL, i.e., URB597 and JZL184, increased N-acyl-ethanolamine (NAE) and 2-monoacylglycerol (2-MAG) levels, respectively, enhanced the expression of intestinal epithelial barrier genes and reduced the trans-epithelial permeability of organoids, as for L. plantarum strains. Interestingly, inflammation-induced trans-epithelial permeability in organoids was also reversed by both FAAH and MAGL inhibitors. We surmise that elevated endogenous levels of either NAEs or 2-MAGs promote improvement in small intestine trans-epithelial permeability and that L. plantarum strains may exploit this mechanism to promote these beneficial effects.

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Extracellular vesicles of Lactiplantibacillus plantarum PCM 2675

Project description:Identification of proteins contained in extracellular vesicles of Lactiplantibacillus plantarum PCM 2675. Dataset is related to publication http://dx.doi.org/10.20517/evcna.2024.49. This work was financially supported by the National Science Centre, Poland (no. 2021/43/D/NZ6/01464).

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Survey of microbiota composition differences between obese subjects before and after Lactiplantibacillus plantarum probiotic treatment

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Comparison of iPSC-derived human intestinal epithelial cells with Caco-2 cells and human in vivo data after exposure to Lactiplantibacillus plantarum WCFS1

Project description:To investigate intestinal health and its potential disruptors in vitro, representative models are required. Human induced pluripotent stem cell (hiPSC)-derived intestinal epithelial cells (IECs) more closely resemble the in vivo intestinal tissue than conventional in vitro models like human colonic adenocarcinoma Caco-2 cells. However, the potential of IECs to study immune-related responses upon external stimuli has not been investigated in detail yet. The aim of the current study was to evaluate immune-related effects of IECs by challenging them with a pro-inflammatory cytokine cocktail. Subsequently, the effects of Lactiplantibacillus plantarum WCFS1 were investigated in unchallenged and challenged IECs. All exposures were compared to Caco-2 cells and in vivo data where possible. Upon the inflammatory challenge, IECs and Caco-2 cells induced a pro-inflammatory response which was strongest in IECs. Heat-killed L. plantarum exerted the strongest effect on immune parameters in the IEC model, while L. plantarum in the stationary growth phase had most pronounced effects on immune-related gene expression in Caco-2 cells. Unfortunately, comparison to in vivo transcriptomics data showed limited similarities, which could be explained by essential differences in the study setups. Altogether, hiPSC-derived IECs show a high potential as a model to study immune-related responses in the intestinal epithelium in vitro.

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Companilactobacillus pabuli strain:BD | isolate:intestinal structure

Project description:Companilactobacillus pabuli strain:BD | isolate:intestinal structure Genome sequencing

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Levilactobacillus brevis strain:BD | isolate:intestinal structure

Project description:Levilactobacillus brevis strain:BD | isolate:intestinal structure Genome sequencing

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2024-01-26 | PXD042175 | Pride

Differences between static supernatant-, static biofilm- and flow biofilm-cells of two Lactiplantibacillus plantarum strains.

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A WYL transcription factor regulates Lactiplantibacillus plantarum intestinal colonization via perceiving c-di-GMP

Project description:The WYL transcription factor (LP_RS00300) is a c-di-GMP effector in L. plantarum WCFS1. LP_RS00300 binds to a special motif within the coding sequence, impeding the transcriptional elongation of LP_RS05345 and LP_RS05225, which encode mucus binding proteins (MucBPs). The perception of c-di-GMP by the WYL domain reversed the inhibitory effect of LP_RS00300 on the expression of MucBPs, resulting in increased adherence to intestinal epithelial cells by L. plantarum. Overall, our study provides evidence that a WYL transcription factor participates in probiotic colonization by sensing c-di-GMP.

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