Dataset Information

Simulating colonic survival of probiotics in single-strain products compared to multi-strain products.

ABSTRACT: Background: Probiotic formulations can be single- or multi-strain. Commercially, multi-strain preparations have been suggested to have improved functionality over single-strain cultures. Probiotics are often tested as single-strain preparations but may subsequently be commercially formulated as multi-strain products. Objective: The aim of this study was to determine what happens at the site of action, the intestine, with probiotics as single- compared to multi-strain preparations. The human gastrointestinal tract contains a broad mixture of different microbes which may affect the survival of different probiotics in different ways. Design: The current study was performed to evaluate, in an in vitro colon simulation, whether probiotics influence each other's survival when they are taken as a combination of several strains (HOWARU Restore; Lactobacillus acidophilus NCFM, Lactobacillus paracasei Lpc-37, Bifidobacterium lactis Bl-04 and B. lactis Bi-07) compared to the strains as single preparations. Results: All strains could be detected after the colon simulations and there were no substantial differences in levels of the same strain when comparing single- and multi-strain products. Conclusions: It can be concluded that probiotics do not have an antagonistic effect on each other's survival when used in a multi-strain product compared to a single-strain product, at least within a microbiota in a simulated colonic environment.

SUBMITTER: Forssten SD

PROVIDER: S-EPMC5678494 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Simulating colonic survival of probiotics in single-strain products compared to multi-strain products.

Forssten S D SD Ouwehand A C AC

Microbial ecology in health and disease 20171017 1

<b>Background</b>: Probiotic formulations can be single- or multi-strain. Commercially, multi-strain preparations have been suggested to have improved functionality over single-strain cultures. Probiotics are often tested as single-strain preparations but may subsequently be commercially formulated as multi-strain products. <b>Objective</b>: The aim of this study was to determine what happens at the site of action, the intestine, with probiotics as single- compared to multi-strain preparations. ...[more]

PMID: 29151828

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Project description:One of the key impacts of probiotic bacteria is the ability to beneficially modulate innate and adaptive immune responses of various cell types of the gut-associated lymphoid tissue. In this study we used an in vitro intestinal epithelial cell model to investigate the impact of three probiotic bacteria Lactobacillus helveticus R0052, Bifidobacterium longum subsp. infantis R0033 and Bifidobacterium bifidum R0071 individually, in combination (R0033, R0052 and R0071) and of a specific surface-layer protein partially purified from L. helveticus R0052 (R0052-SLP) in response to a known dsRNA pro-inflammatory stimulus, poly (I:C). Genome-wide human expression microarray chips were used to evaluate other cellular pathways and gain a deeper insight into global gene and pathway modulation. Here we report that the challenge by poly (I:C)-only resulted in the differential expression of 863 genes; whereas, the co-challenge with either R0033, R0052, R0071, R0052-SLP and the multi-strain combination (R0052, R0033 and R0071) resulted in differential expression of 467 genes, 369 genes, 293 genes, 219 genes and 132 genes; respectively. The multi-strain combination had a greater impact than each single component strain at reducing the number of genes modulated. Among the major human pathways modulated by probiotics or R0052-SLP in response to poly (I:C) include: immune/virus, cellular/signaling, nervous/endocrine and autoimmune disorder related pathways. Cytokine and chemokine profiling was performed at the protein level based on specific markers from the TNF-α and NF-KB signaling pathways. The results revealed single strain, multi-strain and R0052-SLP specific attenuation for the majority of proteins measured (TNF-α, IL-8, CXCL1, CXCL2, CXCL10 and IL-10) indicating potentially different mechanisms for each strain, multi-strain and protein component and reinforcing the rationale for multi-strain combinations. The overall study design consisted of 8 different treatments/challenges of HT-29. Briefly, HT-29 cells were co-challenge for 3 h with either the single strains (R0033, R0052 or R0071) or probiotic combination (PC) alone or in combination with poly (I:C) at 10 µg/mL. Also, a specific surface layer protein purified from R0052 (R0052-SLP) was also co-challenged with poly (I:C) in HT-29 cells. Treatment/challenges of poly (I:C)-only, surface layer protein-only (R0052-SLP-only) and probiotic combination-only or PC-only were also evaluated. All challenges and co-challenges were compared to unchallenged control HT-29 cells. 4 biological reps were performed for each of the 8 samples/treatments.

Project description:BackgroundProbiotics have been reported to exhibit positive effects on host health, including improved intestinal barrier function, preventing pathogenic infection, and promoting nutrient digestion efficiency. These internal changes are reflected to the fecal microbiota composition and, bacterial metabolites production. In accordance, the application of probiotics has been broadened to industrial animals, including swine, which makes people to pursue better knowledge of the correlation between changes in the fecal microbiota and metabolites. Therefore, this study evaluated the effect of multi-strain probiotics (MSP) supplementation to piglets utilizing multiomics analytical approaches including metagenomics, culturomics, and metabolomics.ResultsSix-week-old piglets were supplemented with MSP composed of Lactobacillus isolated from the feces of healthy piglets. To examine the effect of MSP supplement, piglets of the same age were selected and divided into two groups; one with MSP supplement (MSP group) and the other one without MSP supplement (Control group). MSP feeding altered the composition of the fecal microbiota, as demonstrated by metagenomics analysis. The abundance of commensal Lactobacillus was increased by 2.39%, while Clostridium was decreased, which revealed the similar pattern to the culturomic approach. Next, we investigated the microbial metabolite profiles, specifically SCFAs using HPLC-MS/MS and others using GC-MS, respectively. MSP supplement elevated the abundance of amino acids, including valine, isoleucine and proline as well as the concentration of acetic acid. According to the correlation analyses, these alterations were found out to be crucial in energy synthesizing metabolism, such as branched-chain amino acid (BCAA) metabolism and coenzyme A biosynthesis. Furthermore, we isolated commensal Lactobacillus strains enriched by MSP supplement, and analyzed the metabolites and evaluated the functional improvement, related to tight junction from intestinal porcine enterocyte cell line (IPEC-J2).ConclusionsIn conclusion, MSP administration to piglets altered their fecal microbiota, by enriching commensal Lactobacillus strains. This change contributed amino acid, acetic acid, and BCAA concentrations to be increased, and energy metabolism pathway was also increased at in vivo and in vitro. These changes produced by MSP supplement suggests the correlation between the various physiological energy metabolism functions induced by health-promoting Lactobacillus and the growth performance of piglets.

Dataset Information

Simulating colonic survival of probiotics in single-strain products compared to multi-strain products.

Publications

Simulating colonic survival of probiotics in single-strain products compared to multi-strain products.

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