ArticleJournal of bacteriology2013
Lactobacillus reuteri-specific immunoregulatory gene rsiR modulates histamine production and immunomodulation by Lactobacillus reuteri.
Article in Journal of bacteriology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
43 citing papers in PubMed, 65 citations in OpenAlex.
- Trial
- Genomic, phenotypic, and clinical safety of Limosilactobacillus reuteri ATCC PTA 4659.Journal of industrial microbiology & biotechnology · 2023Trial
- Microbial lysate upregulates host oxytocin.Brain, behavior, and immunity · 2017Trial
- Synergistic Effects of Plant Polysaccharides and Probiotics: A Novel Dietary Approach for Parkinson's Disease Intervention.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Harnessing Probiotics to Combat Candidiasis: Mechanisms, Evidence, and Future Directions.Journal of fungi (Basel, Switzerland) · 2025Review
- In vitro assessment of bacterial supernatants on hypothalamic gene expression: implications for appetite regulation.NPJ biofilms and microbiomes · 2025Article
- Histamine Metabolism in IBD: Towards Precision Nutrition.Nutrients · 2025Review
- Feeding the cosmos: tackling personalized space nutrition and the leaky gut challenge.NPJ microgravity · 2025Article
- Protective Effect of Probiotics againstInternational journal of molecular sciences · 2024Article
- Microbial stimulation of oxytocin release from the intestinal epithelium via secretin signaling.Gut microbes · 2023Article
- Microbial stimulation of oxytocin release from the intestinal epithelium via secretin signaling.bioRxiv : the preprint server for biology · 2023Article
- The role of potential probiotic strainsFrontiers in microbiology · 2023Review
- The importance of the gut microbiome and its signals for a healthy nervous system and the multifaceted mechanisms of neuropsychiatric disorders.Frontiers in neuroscience · 2023Review
- Novel Horizons in Postbiotics:Nutrients · 2022Review
- Transcriptomic Analysis RevealsJournal of agricultural and food chemistry · 2022Article
- The Role of Psychobiotics to Ensure Mental Health during the COVID-19 Pandemic-A Current State of Knowledge.International journal of environmental research and public health · 2022Review
- In vitro assessment of histamine and lactate production by a multi-strain synbiotic.Journal of food science and technology · 2022Article
- In Silico Genomic and Metabolic Atlas ofMicroorganisms · 2022Article
- Reuterin Isolated fromTropical life sciences research · 2022Article
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
Human microbiome-derived strains of Lactobacillus reuteri potently suppress proinflammatory cytokines like human tumor necrosis factor (TNF) by converting the amino acid l-histidine to the biogenic amine histamine. Histamine suppresses mitogen-activated protein (MAP) kinase activation and cytokine production by signaling via histamine receptor type 2 (H2) on myeloid cells. Investigations of the gene expression profiles of immunomodulatory L. reuteri ATCC PTA 6475 highlighted numerous genes that were highly expressed during the stationary phase of growth, when TNF suppression is most potent. One such gene was found to be a regulator of genes involved in histidine-histamine metabolism by this probiotic species. During the course of these studies, this gene was renamed the Lactobacillus reuteri-specific immunoregulatory (rsiR) gene. The rsiR gene is essential for human TNF suppression by L. reuteri and expression of the histidine decarboxylase (hdc) gene cluster on the L. reuteri chromosome. Inactivation of rsiR resulted in diminished TNF suppression in vitro and reduced anti-inflammatory effects in vivo in a trinitrobenzene sulfonic acid (TNBS)-induced mouse model of acute colitis. A L. reuteri strain lacking an intact rsiR gene was unable to suppress colitis and resulted in greater concentrations of serum amyloid A (SAA) in the bloodstream of affected animals. The PhdcAB promoter region targeted by rsiR was defined by reporter gene experiments. These studies support the presence of a regulatory gene, rsiR, which modulates the expression of a gene cluster known to mediate immunoregulation by probiotics at the transcriptional level. These findings may point the way toward new strategies for controlling gene expression in probiotics by dietary interventions or microbiome manipulation.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.