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Xiang SL, Xu KZ, Yin LJ, Rao Y, Wang B, Jia AQ. Dopamine, an exogenous quorum sensing signaling molecule or a modulating factor in Pseudomonas aeruginosa? Biofilm 2024; 8:100208. [PMID: 39036334 PMCID: PMC11260039 DOI: 10.1016/j.bioflm.2024.100208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/19/2024] [Accepted: 06/19/2024] [Indexed: 07/23/2024] Open
Abstract
Pseudomonas aeruginosa is recognized globally as an opportunistic pathogen of considerable concern due to its high virulence and pathogenicity, especially in immunocompromised individuals. While research has identified several endogenous quorum sensing (QS) signaling molecules that enhance the virulence and pathogenicity of P. aeruginosa, investigations on exogenous QS signaling molecules or modulating factors remain limited. This study found that dopamine serves as an exogenous QS signaling molecule or modulating factor of P. aeruginosa PAO1, enhancing the production of virulence factors and biofilms. Compared to the control group, treatment with 40 μM dopamine resulted in a 33.1 % increase in biofilm formation, 68.1 % increase in swimming mobility, 63.1 % increase in swarming mobility, 147.2 % increase in the signaling molecule 3-oxo-C12-HSL, and 50.5 %, 28.5 %, 27.0 %, and 33.2 % increases in the virulence factors alginate, rhamnolipids, protease, and pyocyanin, respectively. This study further explored the mechanism of dopamine regulating the biofilm formation and virulence of P. aeruginosa PAO1 through transcriptome and metabolome. Transcriptomic analysis showed that dopamine promoted the expression of virulence genes psl, alg, lasA, rhlABC, rml, and phz in P. aeruginosa PAO1. Metabolomic analysis revealed changes in the concentrations of tryptophan, pyruvate, ethanolamine, glycine, 3-hydroxybutyric acid, and alizarin. Furthermore, KEGG enrichment analysis of altered genes and metabolites indicated that dopamine enhanced phenylalanine, tyrosine, and tryptophan in P. aeruginosa PAO1. The results of this study will contribute to the development of novel exogenous QS signaling molecules or modulating factors and advance our understanding of the interactions between P. aeruginosa and the host environment.
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Affiliation(s)
- Shi-Liang Xiang
- Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
| | - Kai-Zhong Xu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
| | - Lu-Jun Yin
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
| | - Yong Rao
- School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
| | - Bo Wang
- Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
| | - Ai-Qun Jia
- Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
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2
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Du X, Tang Z, Yan L, Zhang L, Zheng Q, Zeng X, Hu Q, Tian Q, Liang L, Zhao X, Li J, Zhao M, Fu X. Norepinephrine may promote the progression of Fusobacterium nucleatum related colorectal cancer via quorum sensing signalling. Virulence 2024; 15:2350904. [PMID: 38725098 PMCID: PMC11085999 DOI: 10.1080/21505594.2024.2350904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 04/27/2024] [Indexed: 05/12/2024] Open
Abstract
Fusobacterium nucleatum (F. nucleatum) is closely correlated with tumorigenesis in colorectal cancer (CRC). We aimed to investigate the effects of host norepinephrine on the carcinogenicity of F. nucleatum in CRC and reveal the underlying mechanism. The results revealed that both norepinephrine and bacterial quorum sensing (QS) molecule auto-inducer-2 (AI-2) were positively associated with the progression of F. nucleatum related CRC (p < 0.01). In vitro studies, norepinephrine induced upregulation of QS-associated genes and promoted the virulence and proliferation of F. nucleatum. Moreover, chronic stress significantly increased the colon tumour burden of ApcMin/+ mice infected with F. nucleatum (p < 0.01), which was decreased by a catecholamine inhibitor (p < 0.001). Our findings suggest that stress-induced norepinephrine may promote the progression of F. nucleatum related CRC via bacterial QS signalling. These preliminary data provide a novel strategy for the management of pathogenic bacteria by targeting host hormones-bacterial QS inter-kingdom signalling.
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Affiliation(s)
- Xinhao Du
- Department of Gastroenterology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
| | - Zhenzhen Tang
- Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, P.R. China
| | - Li Yan
- Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, P.R. China
| | - Ling Zhang
- Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, P.R. China
| | - Qiao Zheng
- Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, P.R. China
| | - Xianghao Zeng
- Department of Gastroenterology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
| | - Qing Hu
- Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, P.R. China
| | - Qian Tian
- Department of Gastroenterology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
| | - Lanfan Liang
- Department of Gastroenterology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
| | - Xinyu Zhao
- Department of Gastroenterology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
| | - Jun Li
- Department of Gastroenterology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
| | - Ming Zhao
- Department of Gastroenterology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
| | - Xiangsheng Fu
- Department of Gastroenterology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
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Gannesen AV, Schelkunov MI, Ziganshin RH, Ovcharova MA, Sukhacheva MV, Makarova NE, Mart'yanov SV, Loginova NA, Mosolova AM, Diuvenji EV, Nevolina ED, Plakunov VK. Proteomic and transcriptomic analyses of Cutibacterium acnes biofilms and planktonic cultures in presence of epinephrine. AIMS Microbiol 2024; 10:363-390. [PMID: 38919714 PMCID: PMC11194618 DOI: 10.3934/microbiol.2024019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/15/2024] [Accepted: 05/21/2024] [Indexed: 06/27/2024] Open
Abstract
Transcriptomic and proteomic analysis were performed on 72 h biofilms of the acneic strain Cutibacterium acnes and planktonic cultures in the presence of epinephrine. Epinephrine predominantly downregulated genes associated with various transporter proteins. No correlation was found between proteomic and transcriptomic profiles. In control samples, the expression of 51 proteins differed between planktonic cultures and biofilms. Addition of 5 nM epinephrine reduced this number, and in the presence of 5 µM epinephrine, the difference in proteomic profiles between planktonic cultures and biofilms disappeared. According to the proteomic profiling, epinephrine itself was more effective in the case of C. acnes biofilms and potentially affected the tricarboxylic acid cycle (as well as alpha-ketoglutarate decarboxylase Kgd), biotin synthesis, cell division, and transport of different compounds in C. acnes cells. These findings are consistent with recent research on Micrococcus luteus, suggesting that the effects of epinephrine on actinobacteria may be universal.
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Affiliation(s)
- AV Gannesen
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - MI Schelkunov
- Skolkovo Institute of Science and Technology, Moscow 121205, Russia
- Institute for Information Transmission Problems of Russian Academy of Sciences, Moscow 127051, Russia
| | - RH Ziganshin
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russia
| | - MA Ovcharova
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - MV Sukhacheva
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - NE Makarova
- Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | - SV Mart'yanov
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - NA Loginova
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - AM Mosolova
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
- Russian Biotechnological University, Moscow 125080, Russia
| | - EV Diuvenji
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - ED Nevolina
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - VK Plakunov
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
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Thiroux A, Berjeaud JM, Villéger R, Crépin A. Effect of endocrine disruptors on bacterial virulence. Front Cell Infect Microbiol 2023; 13:1292233. [PMID: 38029256 PMCID: PMC10657830 DOI: 10.3389/fcimb.2023.1292233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
For several decades, questions have been raised about the effects of endocrine disruptors (ED) on environment and health. In humans, EDs interferes with hormones that are responsible for the maintenance of homeostasis, reproduction and development and therefore can cause developmental, metabolic and reproductive disorders. Because of their ubiquity in the environment, EDs can adversely impact microbial communities and pathogens virulence. At a time when bacterial resistance is inevitably emerging, it is necessary to understand the effects of EDs on the behavior of pathogenic bacteria and to identify the resulting mechanisms. Increasing studies have shown that exposure to environmental EDs can affect bacteria physiology. This review aims to highlight current knowledge of the effect of EDs on the virulence of human bacterial pathogens and discuss the future directions to investigate bacteria/EDs interaction. Given the data presented here, extended studies are required to understand the mechanisms by which EDs could modulate bacterial phenotypes in order to understand the health risks.
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Affiliation(s)
- Audrey Thiroux
- Université de Poitiers, UMR CNRS 7267, Ecologie et Biologie des Interactions, Poitiers, France
| | | | | | - Alexandre Crépin
- Université de Poitiers, UMR CNRS 7267, Ecologie et Biologie des Interactions, Poitiers, France
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Purtov YA, Ozoline ON. Neuromodulators as Interdomain Signaling Molecules Capable of Occupying Effector Binding Sites in Bacterial Transcription Factors. Int J Mol Sci 2023; 24:15863. [PMID: 37958845 PMCID: PMC10647483 DOI: 10.3390/ijms242115863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Hormones and neurotransmitters are important components of inter-kingdom signaling systems that ensure the coexistence of eukaryotes with their microbial community. Their ability to affect bacterial physiology, metabolism, and gene expression was evidenced by various experimental approaches, but direct penetration into bacteria has only recently been reported. This opened the possibility of considering neuromodulators as potential effectors of bacterial ligand-dependent regulatory proteins. Here, we assessed the validity of this assumption for the neurotransmitters epinephrine, dopamine, and norepinephrine and two hormones (melatonin and serotonin). Using flexible molecular docking for transcription factors with ligand-dependent activity, we assessed the ability of neuromodulators to occupy their effector binding sites. For many transcription factors, including the global regulator of carbohydrate metabolism, CRP, and the key regulator of lactose assimilation, LacI, this ability was predicted based on the analysis of several 3D models. By occupying the ligand binding site, neuromodulators can sterically hinder the interaction of the target proteins with the natural effectors or even replace them. The data obtained suggest that the direct modulation of the activity of at least some bacterial transcriptional factors by neuromodulators is possible. Therefore, the natural hormonal background may be a factor that preadapts bacteria to the habitat through direct perception of host signaling molecules.
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Affiliation(s)
- Yuri A. Purtov
- Department of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino 142290, Russia
| | - Olga N. Ozoline
- Department of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino 142290, Russia
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Niu L, Gao M, Wen S, Wang F, Shangguan H, Guo Z, Zhang R, Ge J. Effects of Catecholamine Stress Hormones Norepinephrine and Epinephrine on Growth, Antimicrobial Susceptibility, Biofilm Formation, and Gene Expressions of Enterotoxigenic Escherichia coli. Int J Mol Sci 2023; 24:15646. [PMID: 37958634 PMCID: PMC10649963 DOI: 10.3390/ijms242115646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/04/2023] [Accepted: 10/07/2023] [Indexed: 11/15/2023] Open
Abstract
Enterotoxigenic Escherichia coli (ETEC) is a significant contributor to diarrhea. To determine whether ETEC-catecholamine hormone interactions contribute to the development of diarrhea, we tested the effects of catecholamine hormones acting on ETEC in vitro. The results showed that in the presence of norepinephrine (NE) and epinephrine (Epi), the growth of 9 out of 10 ETEC isolates was promoted, the MICs of more than 60% of the isolates to 6 antibiotics significantly increased, and the biofilm formation ability of 10 ETEC isolates was also promoted. In addition, NE and Epi also significantly upregulated the expression of the virulence genes feaG, estA, estB, and elt. Transcriptome analysis revealed that the expression of 290 genes was affected by NE. These data demonstrated that catecholamine hormones may augment the diarrhea caused by ETEC.
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Affiliation(s)
- Lingdi Niu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Mingchun Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
- Heilongjiang Provincial Key Laboratory of Zoonosis, Harbin 150030, China
| | - Shanshan Wen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Fang Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Haikun Shangguan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Zhiyuan Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Runxiang Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Junwei Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
- Heilongjiang Provincial Key Laboratory of Zoonosis, Harbin 150030, China
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7
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Rahman MA, Ashrafudoulla M, Akter S, Park SH, Ha SD. Probiotics and biofilm interaction in aquaculture for sustainable food security: A review and bibliometric analysis. Crit Rev Food Sci Nutr 2023:1-17. [PMID: 37599629 DOI: 10.1080/10408398.2023.2249114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Aquaculture is one of the most significant food sources from the prehistoric period. As aquaculture intensifies globally, the prevalence and outbreaks of various pathogenic microorganisms cause fish disease and heavy mortality, leading to a drastic reduction in yield and substantial economic loss. With the modernization of the aquaculture system, a new challenge regarding biofilms or bacterial microenvironments arises worldwide, which facilitates pathogenic microorganisms to survive under unfavorable environmental conditions and withstand various treatments, especially antibiotics and other chemical disinfectants. However, we focus on the mechanistic association between those microbes which mainly form biofilm and probiotics in one of the major food production systems, aquaculture. In recent years, probiotics and their derivatives have attracted much attention in the fisheries sector to combat the survival strategy of pathogenic bacteria. Apart from this, Bibliometric analysis provides a comprehensive overview of the published literature, highlighting key research themes, emerging topics, and areas that require further investigation. This information is valuable for researchers, policymakers, and stakeholders in determining research priorities and allocating resources effectively.
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Affiliation(s)
- Md Ashikur Rahman
- Food Science and Technology Department, Chung-Ang University, Anseong-Si, Republic of Korea
| | - Md Ashrafudoulla
- Food Science and Technology Department, Chung-Ang University, Anseong-Si, Republic of Korea
| | - Shirin Akter
- Food Science and Technology Department, Chung-Ang University, Anseong-Si, Republic of Korea
| | - Si Hong Park
- Food Science and Technology Department, Oregon State University, Corvallis, OR, USA
| | - Sang-Do Ha
- Food Science and Technology Department, Chung-Ang University, Anseong-Si, Republic of Korea
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8
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Vargas-Albores F, Garibay-Valdez E, Medina-Félix D, Martínez-Porchas M. The micro-eukaryotic community: An underrated component of the mammalian gut microbiota? Front Microbiol 2023; 14:1123513. [PMID: 37007497 PMCID: PMC10060968 DOI: 10.3389/fmicb.2023.1123513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/28/2023] [Indexed: 03/18/2023] Open
Affiliation(s)
- Francisco Vargas-Albores
- Centro de Investigación en Alimentación y Desarrollo, A.C. Biología de Organismos Acuáticos, Hermosillo, Sonora, Mexico
| | - Estefanía Garibay-Valdez
- Centro de Investigación en Alimentación y Desarrollo, A.C. Biología de Organismos Acuáticos, Hermosillo, Sonora, Mexico
| | - Diana Medina-Félix
- Departamento de Ecología, Universidad Estatal de Sonora, Hermosillo, Sonora, Mexico
| | - Marcel Martínez-Porchas
- Centro de Investigación en Alimentación y Desarrollo, A.C. Biología de Organismos Acuáticos, Hermosillo, Sonora, Mexico
- *Correspondence: Marcel Martínez-Porchas
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Klomp T, Jahr H, Abdelbary MMH, Conrads G. Evaluation of hydrocortisone as a strain-dependent growth-regulator of Porphyromonasgingivalis. Anaerobe 2023; 80:102698. [PMID: 36681234 DOI: 10.1016/j.anaerobe.2023.102698] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Porphyromonas gingivalis is an oral key pathogen and known to be very diverse in geno- and phenotypes. It is a fastidious bacterium with low O2-tolerance and 3-7 days of incubation are necessary. With growing interest in the field of microbial endocrinology we explored the potential growth-stimulating effect of hydrocortisone (HC, synonym cortisol) on P. gingivalis cultures. MATERIAL AND METHODS Six different P. gingivalis strains were pre-incubated in supplemented Brain-Heart-Infusion broth under appropriate conditions for 24 h, diluted and transferred into microplates. A newly developed and semi-automated spectrophotometric measurement in triplicate, applying a SpectraMax i3x microplate reader at an optical density of 600 nm, was conducted to test growth differences between test group (exposed to a supplement of either 1.25, 2.5, 5, 10, or 20 μg/ml of hydrocortisone) and control group over 48 h of anaerobic incubation (O2 ≤ 1%). Furthermore, strains were also incubated on HC-supplemented blood agar to test for a possible growth-stimulating effect on solid media. RESULTS HC significantly stimulated the lag-phase growth of four out of six P. gingivalis strains. Our data suggest a concentration-dependent growth stimulatory effect of HC between 2.5 and 5 μg/ml, while below 1.25 μg/ml and above 10 μg/ml HC either did not stimulate or inhibited growth. CONCLUSIONS HC could reduce the incubation time when isolating P. gingivalis from clinical samples and could boost low biomass cultivations especially during their lag-phase. The growth-modulating effect might be via modulation of virulence factors/quorum sensing gene expression or by reactive oxygen species(ROS)-capturing during early stages of bacterial growth. Further experiments are necessary to explain the mechanism behind our observations.
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Affiliation(s)
- Tim Klomp
- Division of Oral Microbiology and Immunology, Department of Operative Dentistry, Periodontology and Preventive Dentistry, Rheinisch-Westfälische Technische Hochschule University Hospital, Aachen, Germany; Department of Operative Dentistry, Periodontology and Preventive Dentistry, Rheinisch-Westfälische Technische Hochschule University Hospital, Aachen, Germany
| | - Holger Jahr
- Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen and Institute of Structural Mechanics and Lightweight Design, RWTH Aachen University, Aachen, Germany
| | - Mohamed M H Abdelbary
- Division of Oral Microbiology and Immunology, Department of Operative Dentistry, Periodontology and Preventive Dentistry, Rheinisch-Westfälische Technische Hochschule University Hospital, Aachen, Germany
| | - Georg Conrads
- Division of Oral Microbiology and Immunology, Department of Operative Dentistry, Periodontology and Preventive Dentistry, Rheinisch-Westfälische Technische Hochschule University Hospital, Aachen, Germany.
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Francella C, Green M, Caspani G, Lai JKY, Rilett KC, Foster JA. Microbe-Immune-Stress Interactions Impact Behaviour during Postnatal Development. Int J Mol Sci 2022; 23:ijms232315064. [PMID: 36499393 PMCID: PMC9740388 DOI: 10.3390/ijms232315064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 12/04/2022] Open
Abstract
Decades of research have established the role of microbiota-brain communication in behaviour and brain function. Studies have shown that microbiota composition and diversity are influenced by a variety of factors including host genetics, diet, and other environmental exposures, with implications for the immunological and neurobiological development of the host organism. To further understand early-life interactions between environment, genetic factors, the microbiome and the central nervous system, we investigated the impact of postnatal stress in C57Bl/6 wild type and T-cell deficient mice on microbe-brain interactions and behaviour. Mice were exposed to immune challenge with lipopolysaccharide (LPS) at postnatal day (P) 3 and maternal separation at P9 (16 h overnight). Behavioural assessment of growth and development as well as behaviour (righting reflex, ultrasonic vocalizations in response to brief maternal separation, open field, sociability, and grooming) was conducted. Microbiota diversity and composition of fecal samples collected at P24 revealed reduced alpha diversity in T-cell-deficient mice as well as genotype- and stress-related taxa. Notably, integrated analyses of microbiota and behaviour in the context of immunocompromise revealed key behavioural related taxa that may be important to brain development. These findings are important to determining the influence of genetic and environmental factors on gut microbiota and advances our understanding microbiome-brain signaling pathways on neurodevelopment and behaviour.
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Affiliation(s)
- Cassandra Francella
- Department of Psychiatry and Behavioural Neuroscience, McMaster University, Hamilton, ON L8N 4A6, Canada
| | - Miranda Green
- Department of Psychiatry and Behavioural Neuroscience, McMaster University, Hamilton, ON L8N 4A6, Canada
| | - Giorgia Caspani
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London SW7 2BX, UK
| | - Jonathan K. Y. Lai
- Department of Psychiatry and Behavioural Neuroscience, McMaster University, Hamilton, ON L8N 4A6, Canada
| | - Kelly C. Rilett
- Department of Psychiatry and Behavioural Neuroscience, McMaster University, Hamilton, ON L8N 4A6, Canada
| | - Jane A. Foster
- Department of Psychiatry and Behavioural Neuroscience, McMaster University, Hamilton, ON L8N 4A6, Canada
- The Research Institute at St. Joe’s Hamilton, Hamilton, ON L8N 4A6, Canada
- Center for Depression Research and Clinical Care, Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Correspondence:
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Norepinephrine Effects on Uropathogenic Strains Virulence. Microorganisms 2022; 10:microorganisms10112248. [DOI: 10.3390/microorganisms10112248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 11/16/2022] Open
Abstract
The degree of virulence correlates with adhesion, biofilm formation, motility and the capacity to quickly colonize biological surfaces. The virulence of the bacteria that have colonized the urinary tract may be modified by substances dissolved in urine. One such substance is the norepinephrine (NE) hormone, which may be present in human urine, especially in times of stress and under changes in the activity of the renin-angiotensin-aldesterone system. In this work, we study the influence of NE on the biomass, biofilm formation, matrix production, adhesion, motility and metabolism of uropathogenic strains of E. coli and S. aureus. We used Congo red and gentian violet staining for detection of matrix and biomass formation, respectively. The optical density was measured by a multichannel spectrophotometer. The motility of bacterial cells was measured on semi-solid agar at 24 h and 48 h. The metabolic activity was analyzed by MTT assay. It was shown that the metabolic activity of E. coli was stimulated by NE, which led to the increasing synthesis of virulence factors such as biofilm production, adhesion, and motility. At the same time, NE did not activate the S. aureus strain’s metabolism and did not change its adhesion and motility. Thus, the virulence activity of uropathogenic E. coli may be modified by NE in urine.
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12
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Turroni F, Rizzo SM, Ventura M, Bernasconi S. Cross-talk between the infant/maternal gut microbiota and the endocrine system: a promising topic of research. MICROBIOME RESEARCH REPORTS 2022; 1:14. [PMID: 38045647 PMCID: PMC10688790 DOI: 10.20517/mrr.2021.14] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/11/2022] [Accepted: 03/16/2022] [Indexed: 12/05/2023]
Abstract
The infant gut microbiota is the set of microorganisms colonizing the baby's intestine. This complex ecosystem appears to be related to various physiological conditions of the host and it has also been shown to act as one of the most crucial determinants of infant's health. Furthermore, the mother's endocrine system, through its hormones, can have an effect on the composition of the newborn's gut microbiota. In this perspective, we summarize the recent state of the art on the intricate relationships involving the intestinal microbiota and the endocrine system of mother/baby to underline the need to study the molecular mechanisms that appear to be involved.
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Affiliation(s)
- Francesca Turroni
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma 43124, Italy
- Microbiome Research Hub, University of Parma, Parma 43124, Italy
| | - Sonia Mirjam Rizzo
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma 43124, Italy
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma 43124, Italy
- Microbiome Research Hub, University of Parma, Parma 43124, Italy
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