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Chuandong Z, Hu J, Li J, Wu Y, Wu C, Lai G, Shen H, Wu F, Tao C, Liu S, Zhang W, Shao H. Distribution and roles of Ligilactobacillus murinus in hosts. Microbiol Res 2024; 282:127648. [PMID: 38367479 DOI: 10.1016/j.micres.2024.127648] [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: 08/30/2023] [Revised: 10/26/2023] [Accepted: 02/10/2024] [Indexed: 02/19/2024]
Abstract
Ligilactobacillus murinus, a member of the Ligilactobacillus genus, holds significant potential as a probiotic. While research on Ligilactobacillus murinus has been relatively limited compared to well-studied probiotic lactic acid bacteria such as Limosilactobacillus reuteri and Lactobacillus gasseri, a mounting body of evidence highlights its extensive involvement in host intestinal metabolism and immune activities. Moreover, its abundance exhibits a close correlation with intestinal health. Notably, beyond the intestinal context, Ligilactobacillus murinus is gaining recognition for its contributions to metabolism and regulation in the oral cavity, lungs, and vagina. As such, Ligilactobacillus murinus emerges as a potential probiotic candidate with a pivotal role in supporting host well-being. This review delves into studies elucidating the multifaceted roles of Ligilactobacillus murinus. It also examines its medicinal potential and associated challenges, underscoring the imperative to delve deeper into unraveling the mechanisms of its actions and exploring its health applications.
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Affiliation(s)
- Zhou Chuandong
- School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Jicong Hu
- School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Jiawen Li
- School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Yuting Wu
- School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Chan Wu
- School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Guanxi Lai
- School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Han Shen
- School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Fenglin Wu
- School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Changli Tao
- School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Song Liu
- School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Wenfeng Zhang
- School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China.
| | - Hongwei Shao
- School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China.
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Yildiz S, Pereira Bonifacio Lopes JP, Bergé M, González-Ruiz V, Baud D, Kloehn J, Boal-Carvalho I, Schaeren OP, Schotsaert M, Hathaway LJ, Rudaz S, Viollier PH, Hapfelmeier S, Francois P, Schmolke M. Respiratory tissue-associated commensal bacteria offer therapeutic potential against pneumococcal colonization. eLife 2020; 9:53581. [PMID: 33287959 PMCID: PMC7723408 DOI: 10.7554/elife.53581] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 11/18/2020] [Indexed: 12/16/2022] Open
Abstract
Under eubiotic conditions commensal microbes are known to provide a competitive barrier against invading bacterial pathogens in the intestinal tract, on the skin or on the vaginal mucosa. Here, we evaluate the role of lung microbiota in Pneumococcus colonization of the lungs. In eubiosis, the lungs of mice were dominantly colonized by Lactobacillus murinus. Differential analysis of 16S rRNA gene sequencing or L. murinus-specific qPCR of DNA from total organ homogenates vs.broncho alveolar lavages implicated tight association of these bacteria with the host tissue. Pure L. murinus conditioned culture medium inhibited growth and reduced the extension of pneumococcal chains. Growth inhibition in vitro was likely dependent on L. murinus-produced lactic acid, since pH neutralization of the conditioned medium aborted the antibacterial effect. Finally, we demonstrate that L. murinus provides a barrier against pneumococcal colonization in a respiratory dysbiosis model after an influenza A virus infection, when added therapeutically.
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Affiliation(s)
- Soner Yildiz
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | | | - Matthieu Bergé
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Víctor González-Ruiz
- Analytical Sciences, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Geneva, Switzerland.,Swiss Centre for Applied Human Toxicology, Basel, Switzerland
| | - Damian Baud
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Joachim Kloehn
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Inês Boal-Carvalho
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Olivier P Schaeren
- Institute for Infectious Disease (IFIK), University of Bern, Bern, Switzerland.,Graduate School GCB, University of Bern, Bern, Switzerland
| | - Michael Schotsaert
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Lucy J Hathaway
- Institute for Infectious Disease (IFIK), University of Bern, Bern, Switzerland
| | - Serge Rudaz
- Analytical Sciences, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Geneva, Switzerland.,Swiss Centre for Applied Human Toxicology, Basel, Switzerland
| | - Patrick H Viollier
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | | | - Patrice Francois
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Mirco Schmolke
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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Alizadehgharib S, Östberg AK, Dahlstrand Rudin A, Dahlgren U, Christenson K. The effects of the dental methacrylates TEGDMA, Bis-GMA, and UDMA on neutrophils in vitro. Clin Exp Dent Res 2020; 6:439-447. [PMID: 32543782 PMCID: PMC7453771 DOI: 10.1002/cre2.296] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/25/2020] [Accepted: 03/28/2020] [Indexed: 12/30/2022] Open
Abstract
Objectives The prevalent usage of methacrylates in modern dentistry demands good knowledge of their biological impacts. While there have been several studies demonstrating the effects of different methacrylic monomers on mononuclear white blood cells, very little is known about the effects caused by these monomers on neutrophilic granulocytes. The objective of this study was to add novel knowledge about how neutrophils are affected by exposure to triethylene glycol dimethacrylate (TEGDMA), urethane dimethacrylate (UDMA), and bisphenol A glycol dimethacrylate (Bis‐GMA) alone or in combinations. Materials and Methods Isolated neutrophils were cultured in the presence or absence of methacrylates. The IL‐8 release was measured using a DuoSet ELISA development kit. Apoptosis and necrosis were analyzed using flow cytometry. The formation of neutrophil extracellular traps (NETs) was investigated using Sytox green DNA staining combined with microscopically examination of released DNA and myeloperoxidase (MPO). Results The release of IL‐8 was significantly increased after exposure to TEGDMA, Bis‐GMA, UDMA, or TEGDMA in combination with Bis‐GMA or UDMA compared to the unstimulated controls. Exposure to TEGDMA, UDMA, and Bis‐GMA for 24 hr separately or in combination did not affect apoptosis or necrosis of the exposed neutrophils. NET structures were formed by neutrophils after exposure to the different combinations of the methacrylates. Conclusion The combination of TEGDMA and Bis‐GMA had a synergistic proinflammatory effect on neutrophils by increasing the release of IL‐8 and the formation of NET structures. The changes in the normal functions of neutrophils caused by methacrylate exposure may lead to altered inflammatory response and relate to previously reported adverse immune reactions caused by these substances.
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Affiliation(s)
- Sara Alizadehgharib
- Department of Oral Microbiology and Immunology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ann-Karin Östberg
- Department of Oral Microbiology and Immunology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Agnes Dahlstrand Rudin
- Department of Oral Microbiology and Immunology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ulf Dahlgren
- Department of Oral Microbiology and Immunology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Karin Christenson
- Department of Oral Microbiology and Immunology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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