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Phenotypic and transcriptional analysis of the antimicrobial effect of lactic acid bacteria on carbapenem-resistant Acinetobacter baumannii: Lacticaseibacillus rhamnosus CRL 2244 an alternative strategy to fight it

ABSTRACT: Phenotypic and transcriptional analysis of the antimicrobial effect of lactic acid bacteria on carbapenem-resistant Acinetobacter baumannii: Lacticaseibacillus rhamnosus CRL 2244 an alternative strategy to fight it

PROVIDER: PRJNA992424 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25185573_1.fastq.gz	Fastqsanger.gz
	SRR25185573_2.fastq.gz	Fastqsanger.gz
	SRR25185574_1.fastq.gz	Fastqsanger.gz
	SRR25185574_2.fastq.gz	Fastqsanger.gz
	SRR25185575_1.fastq.gz	Fastqsanger.gz

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Phenotypic and transcriptional analysis of the antimicrobial effect of lactic acid bacteria on carbapenem-resistant Acinetobacter baumannii: Lacticaseibacillus rhamnosus CRL 2244 an alternative strategy to fight it

Project description:Carbapenem-resistant Acinetobacter baumannii (CRAB) is a recognized nosocomial pathogen with limited therapeutics options. Lactic acid bacteria (LAB) constitute a promising therapeutic alternative. Here we aimed to study the antibacterial properties of a collection of LAB strains using phenotypic and transcriptomic analysis against A. baumannii clinical strains. One strain, Lacticaseibacillus rhamnosus CRL 2244, exerts a strong inhibitory capacity on A. baumannii with a strong killing activity. Scanning electron microscopy images showed changes in the morphology of A. baumannii with an increase formation of outer membrane vesicles. Significant changes in the expression levels a wide variety of genes were observed. Interestingly, most of the modified genes were involved in metabolic pathway known to be associated with bacterial survival. The paa operon, Hut system, and fatty acid degradation were some of the pathways that have been induced. The data reveals the impact of Lcb. rhamnosus CRL 2244 on A. baumannii response, resulting in bacterial stress and subsequent cell death. These findings highlight the antibacterial properties of Lcb. rhamnosus CRL 2244 and its potential as an alternative or complementary strategy for treating infections. Further exploration and development of this LAB as a treatment option could provide valuable alternatives for combating CRAB infections.

2023-09-14 | GSE236782 | GEO

Phosphate-mediated adaptations in L. paraplantarum CRL 1905

Project description:Lactic acid bacteria (LAB) belong to an economically important group of Gram-positive microorganisms, whose main characteristic is the production of lactic acid by carbohydrates fermentation. Lactobacillus paraplantarum CRL 1905 is a LAB isolated from quinoa sourdoughs with biotechnological potential as a starter or probiotic. Inorganic phosphate (Pi) is an essential nutrient for most bacteria cell functions and it is involved in many regulatory processes. The aim of the project was to evaluate the influence of environmental Pi concentration in different physiological and molecular aspects of the CRL 1905 strain. Phenotypic and proteomic data provide new insights to understand the adaptations in several metabolic pathways that CRL 1905 experiments in response to differential Pi conditions.

2024-03-08 | PXD018988 | Pride

Lacticaseibacillus rhamnosus strain:CRL 2244

Project description:Lacticaseibacillus rhamnosus strain:CRL 2244 Genome sequencing and assembly

| PRJNA1008284 | ENA

Project description:Carbapenem-resistant Acinetobacter baumannii (CRAB) is a recognized nosocomial pathogen with limited antibiotic treatment options. Lactic acid bacteria (LAB) constitute a promising therapeutic alternative. Here we studied the antibacterial properties of a collection of LAB strains using phenotypic and transcriptomic analysis against A. baumannii clinical strains. One strain, Lacticaseibacillus rhamnosus CRL 2244, demonstrated a potent inhibitory capacity on A. baumannii with a significant killing activity. Scanning electron microscopy images showed changes in the morphology of A. baumannii with an increased formation of outer membrane vesicles. Significant changes in the expression levels of a wide variety of genes were also observed. Interestingly, most of the modified genes were involved in a metabolic pathway known to be associated with the survival of A. baumannii . The paa operon, Hut system, and fatty acid degradation were some of the pathways that were induced. The analysis reveals the impact of Lcb. rhamnosus CRL 2244 on A. baumannii response, resulting in bacterial stress and subsequent cell death. These findings highlight the antibacterial properties of Lcb. rhamnosus CRL 2244 and its potential as an alternative or complementary strategy for treating infections. Further exploration and development of LAB as a treatment option could provide valuable alternatives for combating CRAB infections.

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crl; Transcriptome comparison of the crl mutant and CDT1-RNAi line

Project description:au13-04_cdtbis; cdt1_bis crl mutants and CDT1-RNAi lines have very similar macroscopic phenotypes as well as identical defects in plastid division and biogenesis. Our goal wwas to determine how much of these similarities originated from similar alterations of gene expression. Plantlets of crl mutant and CDT1-RNAi lines were grown in vitro on MS1/2 medium for 14 days. CDT1-RNAi lines were compared to the corresponding wild-type (Ws), whereas crl mutants were compared to their wild-type siblings and are in the Col0 ecotype.

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Global_Pneumococcal_Sequencing__GPS__study_II CRL KIMS India

Project description:Global_Pneumococcal_Sequencing__GPS__study_II CRL KIMS India

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Expression data from upper and lower ileum of mice administered lactic acid bacteria, Lactococcus lactis C59 and Lactobacillus rhamnosus GG

Project description:This study aimed to investigate the effects of oral administration of lactic acid bacteria (LAB) on gene expression in murine ileum. Two LAB strains, Lactococcus lactis subsp. lactis C59 and Lactobacillus rhamnosus GG, were administered to mice for 2 weeks. Microarray analysis was performed using total RNA from upper and lower ileum to detail the gene expression of 3 groups; control, C59-administered and GG-administered. Gene expression of upper ileum was less affected by administered strains than that of lower ileum and the latter was strain-specifically affected.

2017-12-10 | GSE72804 | GEO

Lactic acidosis triggers starvation response with distinct metabolic profiles

Project description:[1] Lactic acidosis time course: MCF7 cells were exposed to lactic acidosis for different length of time. We used microarrays to examine the genomic programs of cells incubated under lactic acidosis for different length of time [2] Metabolic profiling: MCF7 cells were exposed to control condition, 25mM lactic acidosis, glucose deprivation (zero glucose) and hypoxia (1% oxygen level). [3] Mouse study: Lactic acidosis triggers starvation response with paradoxical induction of TXNIP through MondoA. Wild-type mouse embryo fibroblasts (MEFs) and TXNIP-null MEFs were exposed to Ctrl versus lactic acidosis conditions for 24hrs and the RNAs from cells were extracted with MiRVana kit (Ambion) and applied to Affymetrix 430A mouse chips We used microarrays to examine the genomic programs of cells incubated under different microenvironmental stresses.

2010-09-27 | GSE19123 | GEO

CSN5i-3 induces degradation of selective CRL substrate receptors and accumulation of CRL substrates

Project description:In this study, we used quantitative proteomics mass spectrometry with 16-plex TMT labeling to compare individual protein levels of DMSO and 1 μM CSN5i-3-treated K562 cells for 2, 8, and 24 hours. CSN5i-3 is a selective and potent inhibitor of Cop9 Signalosome (CSN), which regulates the activity of Cullin-RING E3 ubiquitin ligases (CRLs). CSN5i-3 treatment resulted in reduced CSN activity, and consequently increased cullin neddylation and constitutively active CRL. Gene Ontology analysis of the changed proteins between DMSO- and CSN5i-3-treated samples showed the enrichment of CSN subunits, cell cycle and chromosome-related components, and phosphatase complex, which include multiple CSN subunits (e.g., CSN7B and CSN5), components of CRLs, especially CRL SRs (e.g., SKP2, ELOA and DCAF1/VPRBP), and known substrates of CRLs (e.g., MAGEA6, GLUL, and RHOB). Indeed, eight out of the top 20 most decreased proteins were CRL adaptor and substrate receptors, two out of the top 20 were E2 proteins (CDC34/UBE2R1 and UBE2R2), and two were CSN subunits. Eight out of the top 20 most increased proteins were reported CRL substrates.

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Expression data from CRL-5889 xenograft tumors

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2017-09-08 | GSE74046 | GEO

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