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Spagnolo A, Mileto V, Civino A, Maggio MC, Risso P, Sestito S, Gallizzi R. Use of Streptococcus Salivarius K12 in a cohort of PFAPA patients. Front Pediatr 2024; 12:1370544. [PMID: 39119192 PMCID: PMC11306137 DOI: 10.3389/fped.2024.1370544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 07/12/2024] [Indexed: 08/10/2024] Open
Abstract
Background Periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis syndrome (PFAPA) is the most common cause of periodic fever in childhood. Although PFAPA is generally a self-limited condition, it can have negative impact on child's and parents' quality of life and family functioning. Our primary aim was to assess the potential effectiveness of Streptococcus Salivarius K12 (SSK12) in preventing febrile attacks in PFAPA patients. Secondary objectives included evaluating the effectiveness of SSK12 in mitigating the severity of febrile episodes seen as a statistically significant reduction in the episode duration, highest fever temperature reached during fever, in the frequency of each associated symptom, calculated in the six months before and after the start of therapy. Results A total of 117 patients with PFAPA were evaluated using Marshall's criteria, modified by Thomas et al. and according to Eurofever/PRINTO classification criteria, aged 6 months to 9 years, with a median age at the onset of the disease of 2 years, treated with SSK12, since January 2021 to January 2023. Data were collected retrospectively. Before using SS K12, febrile episodes recurred on average every 26.1 ± 11.5 days, with a febrile episode duration of 4.1 ± 1.4 days. The highest fever temperature during the episode was 39.8 ± 0.7 °C. After six months of SS K12, febrile episodes recurred on average every 70 ± 53,1 days (p value <0.01), the mean lenght of febrile episodes was 3.3 ± 1.6 (p value <0.01) and the highest fever temperature reached during the febrile episode was 39.1 ± 1.1 °C (p value <0.01). We also documented a reduction in the frequency of exudative pharyngotonsillitis present in 72 vs. 103 patients (p value <0.01), oral aphthosis present in 47 vs. 80 patients (p value <0.01), lateral cervical lymphadenopathy in 45 vs. 83 (p value <0.01). Erythematous pharyngotonsillitis decreased in frequency but it was not statistically significant. Conclusions The results of our study indicate that the use of SS K12 could be beneficial in decreasing febrile episodes related to PFAPA syndrome and its associated symptoms, potentially improving the quality of life in pediatric patients and decreasing the need for additional pharmacological therapies.
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Affiliation(s)
- Alessandra Spagnolo
- Pediatric Unit, Department of Health Science, Magna Grecia University of Catanzaro, Catanzaro, Italy
| | - Vincenzo Mileto
- Pediatric Unit, Department of Health Science, Magna Grecia University of Catanzaro, Catanzaro, Italy
| | - Adele Civino
- Maternal and Infantile Department, PO “Vito Fazzi Hospital” Lecce, Lecce, Italy
| | - Maria Cristina Maggio
- Department of Health Promotion, Maternal and Infantile Care, Department of Internal Medicine and Medical Specialties “G. D'Alessandro”, University of Palermo, Palermo, Italy
| | - Paolo Risso
- Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Simona Sestito
- Pediatric Unit, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Romina Gallizzi
- Pediatric Unit, Department of Health Science, Magna Grecia University of Catanzaro, Catanzaro, Italy
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Peng X, Li Z, Pei Y, Zheng S, Liu J, Wang J, Li R, Xu X. Streptococcus salivarius K12 Alleviates Oral Mucositis in Patients Undergoing Radiotherapy for Malignant Head and Neck Tumors: A Randomized Controlled Trial. J Clin Oncol 2024; 42:1426-1435. [PMID: 38215354 PMCID: PMC11095859 DOI: 10.1200/jco.23.00837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 09/10/2023] [Accepted: 11/06/2023] [Indexed: 01/14/2024] Open
Abstract
PURPOSE Oral mucositis (OM) is a common debilitating toxicity associated with radiotherapy (RT) for malignant head and neck tumors. This prospective, randomized, double-blind, placebo-controlled trial aimed to evaluate the efficacy and safety of Streptococcus salivarius K12 (SsK12) in reducing the incidence, duration, and severity of severe OM (SOM). METHODS A total of 160 patients with malignant head and neck tumors undergoing definitive or postoperative adjuvant RT were randomly assigned (1:1) to receive SsK12 probiotic (n = 80) or placebo (n = 80) at West China Hospital, Sichuan University, Chengdu, China. Patients were instructed to suck SsK12 or placebo lozenges thrice daily from the initiation to the end of RT. OM was evaluated twice a week during RT and once a week thereafter for up to 8 weeks. The primary end point was the incidence of SOM. Adverse events were assessed according to the National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0. RESULTS Baseline patient characteristics were similar in the SsK12 and placebo groups. The incidence of SOM was significantly lower in the SsK12 group as compared with the placebo group (36.6% v 54.2%; P = .0351). The duration (median, 0.0 days v 7.0 days; mean, 8.9 days v 18.3 days; P = .0084) and time to develop SOM (median, not estimable v 42.0 days; hazard ratio, 0.55 [95% CI, 0.34 to 0.89]; log-rank test: P = .0123) were also improved in the case of the SsK12 group. Adverse events were similar between the groups, and mild or moderate gastrointestinal reactions (flatulence or dyspepsia) associated with the lozenges were observed in two patients in the SsK12 group. High-throughput sequencing results indicated that SsK12 inhibited opportunistic pathogens and enriched oral commensals during RT. CONCLUSION In this prospective, randomized clinical trial, SsK12 probiotic significantly reduced the incidence, onset, and duration of SOM with a good safety profile.
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Affiliation(s)
- Xingchen Peng
- Department of Biotherapy, Cancer Center, West China Hospital & State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Zixia Li
- Department of Cariology and Endodontics, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yiyan Pei
- Department of Biotherapy, Cancer Center, West China Hospital & State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Shuhao Zheng
- Department of Cariology and Endodontics, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jinchi Liu
- Department of Cariology and Endodontics, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jingjing Wang
- Department of Biotherapy, Cancer Center, West China Hospital & State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Ruidan Li
- Department of Biotherapy, Cancer Center, West China Hospital & State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Xin Xu
- Department of Cariology and Endodontics, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Boyte ME, Akhtar N, Koshy B, Roe AL. A Review of Probiotic Ingredient Safety Supporting Monograph Development Conducted by the United States Pharmacopeia (USP). J Diet Suppl 2024:1-39. [PMID: 38356247 DOI: 10.1080/19390211.2024.2314488] [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: 02/16/2024]
Abstract
The United States Pharmacopeia (USP) is an independent, nonprofit science-based organization whose mission is to improve global health through public standards and related products for medicines, food and dietary supplements. Probiotic-based dietary supplements are increasingly popular in the marketplace and USP has developed fourteen monographs specific to probiotic ingredients, including representatives from the Genera Lactobacillus, Bacillus, Streptococcus, and Bifidobacterium. These monographs include the definition of the article, tests for identification, quantification assays (enumeration in the case of probiotics), limits for contaminants, and other quality parameters when appropriate. In addition to quality, the USP also considers the safety of probiotics for monograph development. This report includes an overview of the USP admission evaluation process for probiotics as well as a tabular summary of the probiotic monographs currently available. Pharmacopeia monographs can guide manufacturers and brand owners and protect consumers through establishment of quality standards.
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Affiliation(s)
- Marie-Eve Boyte
- Dietary Supplement Admission Evaluation and Labeling Expert Committee, United States Pharmacopeia, Rockville, Maryland, USA
| | - Nadeem Akhtar
- United States Pharmacopeia, Rockville, Maryland, USA
| | - Binu Koshy
- United States Pharmacopeia, Rockville, Maryland, USA
| | - Amy L Roe
- Dietary Supplement Admission Evaluation and Labeling Expert Committee, United States Pharmacopeia, Rockville, Maryland, USA
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Laws GA, Harold LK, Tagg JR, Hale JDF. Interferon Gamma Response in Human Saliva Following Exposure to the Oral Probiotic Streptococcus salivarius BLIS K12. Probiotics Antimicrob Proteins 2024; 16:93-98. [PMID: 36477439 DOI: 10.1007/s12602-022-10010-0] [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] [Accepted: 11/15/2022] [Indexed: 12/12/2022]
Abstract
Streptococcus salivarius BLIS K12 is a probiotic strain developed for application to the oral cavity. The strain was originally characterised for its in vitro antibacterial activity against the prominent oral pathogen Streptococcus pyogenes. More recent research has expanded its applications to include reducing halitosis, preventing otitis media and protecting against virus infections of the respiratory tract. A potential mechanism for this anti-viral activity could be the stimulation of salivary interferon gamma (IFN-γ) production in the oral cavity. The aim of this study was to investigate whether the ingestion of and oral cavity colonisation by S. salivarius BLIS K12 is associated with enhancement of IFN-γ levels in saliva. Application of ELISA demonstrated that consumption of S. salivarius BLIS K12 effected an increase in salivary IFN-γ, and this response was more consistent with use of viable cells than following ingestion of heat-killed S. salivarius BLIS K12. Interestingly, those subjects who more successfully colonised with S. salivarius BLIS K12 did not experience a relatively larger increase in their IFN-γ levels, indicating that the observed IFN-γ response occurs independently of colonisation efficacy. In summary, the consumption of S. salivarius BLIS K12 increases salivary levels of IFN-γ, an effect that may contribute to protection of the host against certain virus infections.
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Affiliation(s)
- Gemma A Laws
- Blis Technologies, 81 Glasgow St, South Dunedin, 9012, New Zealand
| | - Liam K Harold
- Blis Technologies, 81 Glasgow St, South Dunedin, 9012, New Zealand
| | - John R Tagg
- Blis Technologies, 81 Glasgow St, South Dunedin, 9012, New Zealand
| | - John D F Hale
- Blis Technologies, 81 Glasgow St, South Dunedin, 9012, New Zealand.
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Labossiere A, Ramsey M, Merritt J, Kreth J. Molecular commensalism-how to investigate underappreciated health-associated polymicrobial communities. mBio 2023; 14:e0134223. [PMID: 37754569 PMCID: PMC10653818 DOI: 10.1128/mbio.01342-23] [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] [Indexed: 09/28/2023] Open
Abstract
The study of human commensal bacteria began with the first observation of prokaryotes >340 years ago. Since then, the study of human-associated microbes has been justifiably biased toward the study of infectious pathogens. However, the role of commensal microbes has in recent years begun to be understood with some appreciation of them as potential protectors of host health rather than bystanders. As our understanding of these valuable microbes grows, it highlights how much more remains to be learned about them and their roles in maintaining health. We note here that a thorough framework for the study of commensals, both in vivo and in vitro is overall lacking compared to well-developed methodologies for pathogens. The modification and application of methods for the study of pathogens can work well for the study of commensals but is not alone sufficient to properly characterize their relationships. This is because commensals live in homeostasis with the host and within complex communities. One difficulty is determining which commensals have a quantifiable impact on community structure and stability as well as host health, vs benign microbes that may indeed serve only as bystanders. Human microbiomes are composed of bacteria, archaea, fungi, and viruses. This review focuses particularly on oral bacteria, yet many of the principles of commensal impacts on host health observed in the mouth can translate well to other host sites. Here, we discuss the value of commensals, the shortcomings involved in model systems for their study, and some of the more notable impacts they have upon not only each other but host health.
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Affiliation(s)
- Alex Labossiere
- Department of Cell and Molecular Biology, The University of Rhode Island, Kingston, Rhode Island, USA
| | - Matthew Ramsey
- Department of Cell and Molecular Biology, The University of Rhode Island, Kingston, Rhode Island, USA
| | - Justin Merritt
- Biomaterial and Biomedical Sciences, Oregon Health and Science University, School of Dentistry, Portland, Oregon, USA
- Department of Molecular Microbiology and Immunology, School of Medicine, Oregon Health and Science University, Portland, Oregon, USA
| | - Jens Kreth
- Biomaterial and Biomedical Sciences, Oregon Health and Science University, School of Dentistry, Portland, Oregon, USA
- Department of Molecular Microbiology and Immunology, School of Medicine, Oregon Health and Science University, Portland, Oregon, USA
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Li W, Liang H, Lin X, Hu T, Wu Z, He W, Wang M, Zhang J, Jie Z, Jin X, Xu X, Wang J, Yang H, Zhang W, Kristiansen K, Xiao L, Zou Y. A catalog of bacterial reference genomes from cultivated human oral bacteria. NPJ Biofilms Microbiomes 2023; 9:45. [PMID: 37400465 DOI: 10.1038/s41522-023-00414-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/20/2023] [Indexed: 07/05/2023] Open
Abstract
The oral cavity harbors highly diverse communities of microorganisms. However, the number of isolated species and high-quality genomes is limited. Here we present a Cultivated Oral Bacteria Genome Reference (COGR), comprising 1089 high-quality genomes based on large-scale aerobic and anaerobic cultivation of human oral bacteria isolated from dental plaques, tongue, and saliva. COGR covers five phyla and contains 195 species-level clusters of which 95 include 315 genomes representing species with no taxonomic annotation. The oral microbiota differs markedly between individuals, with 111 clusters being person-specific. Genes encoding CAZymes are abundant in the genomes of COGR. Members of the Streptococcus genus make up the largest proportion of COGR and many of these harbor entire pathways for quorum sensing important for biofilm formation. Several clusters containing unknown bacteria are enriched in individuals with rheumatoid arthritis, emphasizing the importance of culture-based isolation for characterizing and exploiting oral bacteria.
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Affiliation(s)
- Wenxi Li
- BGI-Shenzhen, 518083, Shenzhen, China
- School of Biology and Biological Engineering, South China University of Technology, 510006, Guangzhou, China
| | | | - Xiaoqian Lin
- BGI-Shenzhen, 518083, Shenzhen, China
- School of Biology and Biological Engineering, South China University of Technology, 510006, Guangzhou, China
| | | | - Zhinan Wu
- BGI-Shenzhen, 518083, Shenzhen, China
- College of Life Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Wenxin He
- BGI-Shenzhen, 518083, Shenzhen, China
| | | | | | - Zhuye Jie
- BGI-Shenzhen, 518083, Shenzhen, China
| | - Xin Jin
- BGI-Shenzhen, 518083, Shenzhen, China
| | - Xun Xu
- BGI-Shenzhen, 518083, Shenzhen, China
- Guangdong Provincial Key Laboratory of Genome Read and Write, BGI-Shenzhen, 518120, Shenzhen, China
| | - Jian Wang
- BGI-Shenzhen, 518083, Shenzhen, China
- James D. Watson Institute of Genome Sciences, 310058, Hangzhou, China
| | - Huanming Yang
- BGI-Shenzhen, 518083, Shenzhen, China
- James D. Watson Institute of Genome Sciences, 310058, Hangzhou, China
| | | | - Karsten Kristiansen
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Universitetsparken 13, 2100, Copenhagen, Denmark.
- Qingdao-Europe Advanced Institute for Life Sciences, BGI-Shenzhen, 266555, Qingdao, China.
- PREDICT, Center for Molecular Prediction of Inflammatory Bowel Disease, Faculty of Medicine, Aalborg University, 2450, Copenhagen, Denmark.
| | - Liang Xiao
- BGI-Shenzhen, 518083, Shenzhen, China.
- College of Life Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China.
- Qingdao-Europe Advanced Institute for Life Sciences, BGI-Shenzhen, 266555, Qingdao, China.
- Shenzhen Engineering Laboratory of Detection and Intervention of Human Intestinal Microbiome, BGI-Shenzhen, Shenzhen, China.
| | - Yuanqiang Zou
- BGI-Shenzhen, 518083, Shenzhen, China.
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Universitetsparken 13, 2100, Copenhagen, Denmark.
- Qingdao-Europe Advanced Institute for Life Sciences, BGI-Shenzhen, 266555, Qingdao, China.
- Shenzhen Engineering Laboratory of Detection and Intervention of Human Intestinal Microbiome, BGI-Shenzhen, Shenzhen, China.
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Tagg JR, Harold LK, Jain R, Hale JDF. Beneficial modulation of human health in the oral cavity and beyond using bacteriocin-like inhibitory substance-producing streptococcal probiotics. Front Microbiol 2023; 14:1161155. [PMID: 37056747 PMCID: PMC10086258 DOI: 10.3389/fmicb.2023.1161155] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/03/2023] [Indexed: 03/30/2023] Open
Abstract
The human oral cavity contains a diversity of microbial habitats that have been adopted and adapted to as homeland by an amazingly heterogeneous population of microorganisms collectively referred to as the oral microbiota. These microbes generally co-habit in harmonious homeostasis. However, under conditions of imposed stress, as with changes to the host’s physiology or nutritional status, or as a response to foreign microbial or antimicrobial incursions, some components of the oral “microbiome” (viz. the in situ microbiota) may enter a dysbiotic state. This microbiome dysbiosis can manifest in a variety of guises including streptococcal sore throats, dental caries, oral thrush, halitosis and periodontal disease. Most of the strategies currently available for the management or treatment of microbial diseases of the oral cavity focus on the repetitive “broad sweep” and short-term culling of oral microbe populations, hopefully including the perceived principal pathogens. Both physical and chemical techniques are used. However, the application of more focused approaches to the harnessing or elimination of key oral cavity pathogens is now feasible through the use of probiotic strains that are naturally adapted for oral cavity colonization and also are equipped to produce anti-competitor molecules such as the bacteriocins and bacteriocin-like inhibitory substances (viz BLIS). Some of these probiotics are capable of suppressing the proliferation of a variety of recognized microbial pathogens of the human mouth, thereby assisting with the restoration of oral microbiome homeostasis. BLIS K12 and BLIS M18, the progenitors of the BLIS-producing oral probiotics, are members of the human oral cavity commensal species Streptococcus salivarius. More recently however, a number of other streptococcal and some non-streptococcal candidate oral probiotics have also been promoted. What is becoming increasingly apparent is that the future for oral probiotic applications will probably extend well beyond the attempted limitation of the direct pathological consequences of oral microbiome dysbiosis to also encompass a plethora of systemic diseases and disorders of the human host. The background to and the evolving prospects for the beneficial modulation of the oral microbiome via the application of BLIS-producing S. salivarius probiotics comprises the principal focus of the present review.
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Can probiotic gargles reduce post-tonsillectomy morbidity in adult patients? A pilot, triple-blind, randomised, controlled trial and feasibility study. J Laryngol Otol 2023; 137:323-341. [PMID: 35317870 PMCID: PMC9975764 DOI: 10.1017/s0022215122000743] [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] [Indexed: 11/05/2022]
Abstract
OBJECTIVE This study aimed to determine the efficacy of probiotic gargles compared with placebo gargles on reducing post-tonsillectomy morbidity in adults. METHOD This was a triple-blind, randomised, controlled trial and feasibility study. Thirty adults underwent elective tonsillectomy and were randomly assigned to receive either probiotic or placebo gargles for 14 days after surgery. Daily pain scores and requirement of analgesia were measured for 14 days post-operatively. Secondary outcomes assessed probiotic safety and tolerability and the feasibility of the trial. RESULTS The probiotic group experienced less pain at rest on day 2. However, the amount of oxycodone (5 mg) tablets used was greater in the probiotic group compared with placebo. There were no statistically significant differences in the frequency of adverse effects between both groups. This trial was feasible. CONCLUSION This pilot study suggested that probiotic gargles do not reduce post-tonsillectomy pain or bleeding, highlighting the importance of pilot and feasibility studies in clinical research.
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Kim HJ, Yoo HJ. Inhibitory effects of Streptococcus salivarius K12 on formation of cariogenic biofilm. J Dent Sci 2023; 18:65-72. [PMID: 36643262 PMCID: PMC9831821 DOI: 10.1016/j.jds.2022.07.011] [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: 07/07/2022] [Revised: 07/14/2022] [Indexed: 01/18/2023] Open
Abstract
Bacground/purpose Streptococcus salivarius (S. salivarius) K12 is known to be a probiotic bacterium. The purpose of this study was to investigate anti-cariogenic effects of S. salivarius K12 on cariogenic biofilm. Materials and methods S. salivarius K12 was cultured in M17 broth. The antimicrobial activity of spent culture medium (SCM) against Streptococcus mutans was investigated. S. salivarius K12 was co-cultivated with S. mutans using a membrane insert. When the biofilm was formed using salivary bacteria and S. mutans, the K12 was inoculated every day. The biomass of biofilm was investigated by a confocal laser scanning microscope. Also, bacterial DNA from the biofilm was extracted, and then bacteria proportion was analyzed by quantitative PCR using specific primers. The expression of gtf genes of S. mutans in the biofilm with or without S. salivarius K12 was analyzed by RT-PCR. Results The SCM of S. salivarius K12 inhibited the growth of S. mutans. Also, S. salivarius K12 reduced S. mutans growth in co-cultivation. The formation of cariogenic biofilm was reduced by adding S. salivarius K12, and the count of S. mutans in the biofilm was also decreased in the presence of S. salivarius K12. gtfB, gtfC, and gtfD expression of S. mutans in the biofilm was reduced in the presence of S. salivarius K12. Conclusion S. salivarius K12 may inhibit the formation of cariogenic biofilm by interrupting the growth and glucosyltransferase production of S. mutans.
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Affiliation(s)
- Hye-Ji Kim
- Department of Dental Hygiene, College of Health Science, Dankook University, Cheonan, Republic of Korea
| | - Hyun-Jun Yoo
- Department of Preventive Dentistry, College of Dentistry, Dankook University, Cheonan, Republic of Korea,Corresponding author. Department of Preventive Dentistry, College of Dentistry, Dankook University, 119 Dandae-Ro, Dangnam-gu, Cheonan, 31116, Republic of Korea. Fax: +82 41 550 1859.
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Di Pierro F, Iqtadar S, Mumtaz SU, Bertuccioli A, Recchia M, Zerbinati N, Khan A. Clinical Effects of Streptococcus salivarius K12 in Hospitalized COVID-19 Patients: Results of a Preliminary Study. Microorganisms 2022; 10:microorganisms10101926. [PMID: 36296202 PMCID: PMC9609702 DOI: 10.3390/microorganisms10101926] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 09/21/2022] [Accepted: 09/24/2022] [Indexed: 11/30/2022] Open
Abstract
Anatomical and physiological considerations indicate that the oral cavity is a primary source of the lung microbiota community, and recent studies have shown that the microbiota in the lungs contributes to immunological homeostasis, potentially altering the organ’s susceptibility to viral infection, including SARS-CoV-2. It has been proposed that, in the case of viral infection, lung Gram-negative bacteria could promote the cytokine cascade with a better performance than a microbiota mainly constituted by Gram-positive bacteria. Recent observations also suggest that Prevotella-rich oral microbiotas would dominate the oral cavity of SARS-CoV-2-infected patients. In comparison, Streptococcus-rich microbiotas would dominate the oral cavity of healthy people. To verify if the modulation of the oral microbiota could have an impact on the current coronavirus disease, we administered for 14 days a well-recognized and oral-colonizing probiotic (S. salivarius K12) to hospitalized COVID-19 patients. The preliminary results of our randomized and controlled trial seem to prove the potential role of this oral strain in improving the course of the main markers of pathology, as well as its ability to apparently reduce the death rate from COVID-19. Although in a preliminary and only circumstantial way, our results seem to confirm the hypothesis of a direct involvement of the oral microbiota in the construction of a lung microbiota whose taxonomic structure could modulate the inflammatory processes generated at the pulmonary and systemic level by a viral infection.
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Affiliation(s)
- Francesco Di Pierro
- Scientific & Research Department, Velleja Research, 20100 Milan, Italy
- Digestive Endoscopy, Fondazione Poliambulanza, 25133 Brescia, Italy
- Correspondence: ; Tel.: +39-0523-510848; Fax: +39-0523-511894
| | - Somia Iqtadar
- Department of Medicine, King Edward Medical University, Lahore 54000, Pakistan
| | - Sami Ullah Mumtaz
- Department of Medicine, King Edward Medical University, Lahore 54000, Pakistan
| | - Alexander Bertuccioli
- Department of Biomolecular Sciences (DISB), University of Urbino, 61029 Urbino, Italy
| | - Martino Recchia
- Medistat, Unità di Epidemiologia Clinica e Biostatistica, 20100 Milan, Italy
| | - Nicola Zerbinati
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy
| | - Amjad Khan
- Nuffield Division of Clinical and Laboratory Sciences (NDCLS), Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DU, UK
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Trukhan DI, Sulimov AF, Trukhan LY. Changes in the organs and tissues of the oral cavity in the new coronavirus infection (COVID-19): A review. CONSILIUM MEDICUM 2022. [DOI: 10.26442/20751753.2022.5.201755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
SARS-CoV-2 infection can cause changes in the organs and tissues of the oral cavity, which is associated with a wide distribution of angiotensin-converting enzyme type 2 in the oral cavity, mainly epithelial cells of the oral mucosa, gums and fibroblasts of the periodontal ligament. Thus, the oral mucosa is susceptible to SARS-CoV-2 infection and may act as a gateway for the virus, as well as a reservoir for SARS-CoV-2. We searched the literature for the period from the beginning of the pandemic until May 30, 2022, devoted to the study of changes in the organs and tissues of the oral cavity with a new coronavirus infection (COVID-19) in the electronic search engines PubMed/MEDLINE and Scopus. A special place in the study of changes in the organs and tissues of the oral cavity with a new coronavirus infection (COVID-19) is occupied by periodontal pathology. A number of reviews and clinical studies conclude the importance of good oral hygiene and periodontal health as an important aspect of COVID-19 prevention and management. Oral probiotics can be considered as a promising direction for correcting changes in organs and tissues of the oral cavity in COVID-19.
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Ebrahim F, Malek S, James K, MacDonald K, Cadieux P, Burton J, Cioffi I, Lévesque C, Gong SG. Effectiveness of the Lorodent Probiotic Lozenge in Reducing Plaque and Streptococcus mutans Levels in Orthodontic Patients: A Double-Blind Randomized Control Trial. FRONTIERS IN ORAL HEALTH 2022; 3:884683. [PMID: 35571981 PMCID: PMC9093136 DOI: 10.3389/froh.2022.884683] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
Orthodontic patients are at a significant risk for oral diseases due to increased plaque accumulation and oral bacterial dysbiosis. We aimed to determine the efficacy of the commercially available Lorodent Probiotic Complex at reducing plaque accumulation and Streptococcus mutans bacterial levels in adolescent orthodontic patients. Sixty adolescents undergoing fixed orthodontic treatment for a minimum of 6 months were recruited in a randomized, double-blind, parallel-group, placebo-controlled trial. They received either Lorodent probiotic lozenge (intervention, n = 30) or placebo lozenge (control, n = 30) orally every day for a 28-day administration period. Participants were assessed at four appointments (T1–T4) over a total of 56 days. Compliance and lozenge satisfaction were monitored. Saliva samples and supragingival plaques were collected for evaluation of S. mutans levels. Clinical assessment using a Plaque Index (PI) was used. Compliance with lozenge intake of all participants was over 90%. There was no significant change in the PI and composite PI scores in both placebo and probiotic groups at each time frame (all p > 0.05) or the relative S. mutans DNA levels in the saliva and plaque between the probiotic and placebo groups. The findings of high compliance and satisfaction with the probiotic lozenges combined with the study's rigorous design offer a baseline for subsequent testing of further potential probiotics (of varying formulations, concentrations), especially in adolescents.
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Affiliation(s)
- Fatima Ebrahim
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Sarah Malek
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Kris James
- Departments of Surgery, Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Kyle MacDonald
- Departments of Surgery, Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Peter Cadieux
- Departments of Surgery, Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Jeremy Burton
- Departments of Surgery, Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Iacopo Cioffi
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Celine Lévesque
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Siew-Ging Gong
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
- *Correspondence: Siew-Ging Gong
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Poorni S, Nivedhitha MS, Srinivasan M, Balasubramaniam A. Effect of Probiotic Streptococcus salivarius K12 and M18 Lozenges on the Cariogram Parameters of Patients With High Caries Risk: A Randomised Control Trial. Cureus 2022; 14:e23282. [PMID: 35449617 PMCID: PMC9012604 DOI: 10.7759/cureus.23282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2022] [Indexed: 11/24/2022] Open
Abstract
Purpose: To evaluate the effect of Probiotic Streptococcus Salivarius K12 and M18 Lozenges on the Cariogram (Cariogram Mobile application Version 1.3 developed by Wong Jung Ming, Faculty of Dentistry, National University of Singapore) parameters of patients with high caries risk. Materials and Methods: Fourty-two subjects were randomly allocated to Group 1 and 2 who received BLIS K12TM and BLIS M18TM probiotics (Blis Probiotics, Dunedin, New Zealand) respectively along with oral hygiene instructions and Group 3 (control) received only oral hygiene instructions with 1:1:1 allocation ratio. Subjects were instructed to follow the instructions and use the probiotics for a period of three months. Their caries risk was assessed using Cariogram software at baseline and 30 days after the use of probiotics. Change in the chance to avoid new cavities was recorded and statistically analysed using appropriate statistical tests. Results: About 38 subjects completed the trial with a drop-out count of eight. Multiple imputations were carried out for the missing data using an expectation-maximization algorithm. The mean percentage of actual chance to avoid new cavities was found to be 47.14 ± 6.837; 41.36 ± 16.04 and 32.50 ± 14.54 among the subjects in Group 1, Group 2, and Group 3 respectively. The mean percentage difference between the three groups was found to be statistically significant (p-value = 0.047). Dunn’s pair-wise comparison showed a significant mean percentage difference between Group 1 (BLIS K12) and Group 3 (control) (p=0.020). Conclusion: It can be concluded that the use of BLIS K12TM and BLIS M18TM probiotics for three months resulted in a considerable decrease in the caries risk. Further long-term clinical trials are needed to evaluate the difference in caries risk following the use of BLIS K12TMand BLIS M18TM among different age and risk groups.
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Hale JDF, Jain R, Wescombe PA, Burton JP, Simon RR, Tagg JR. Safety assessment of Streptococcus salivarius M18 a probiotic for oral health. Benef Microbes 2022; 13:47-60. [PMID: 35098909 DOI: 10.3920/bm2021.0107] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The development of probiotics targeting non-intestinal body sites continues to generate interest amongst researchers, biotech companies and consumers alike. A key consideration for any bacterial strain to be developed into a probiotic is a robust assessment of its safety profile. Streptococcus salivarius strain M18 was originally isolated from a healthy adult and evaluated for its probiotic capabilities targeted to dental and oral health applications. This publication presents the safety characterisation of strain M18. Application of a diverse range of techniques showed that strain M18 can be specifically distinguished from other S. salivarius using a variety of molecular and phenotypic methodologies and that it lacks any relevant antibiotic resistance or virulence determinants. Direct comparison of the strain M18 safety profile with that of the prototype S. salivarius probiotic, S. salivarius strain K12, supports the proposition that strain M18 is indeed safe for probiotic application in humans.
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Affiliation(s)
- J D F Hale
- Blis Technologies Ltd, 81 Glasgow Street, South Dunedin, Dunedin 9012, New Zealand
| | - R Jain
- Blis Technologies Ltd, 81 Glasgow Street, South Dunedin, Dunedin 9012, New Zealand
| | - P A Wescombe
- Yili Innovation Center Oceania, Lincoln University, Christchurch, New Zealand
| | - J P Burton
- Lawson Health Research Institute, 268 Grosvenor St, London, ON, Canada
| | - R R Simon
- Intertek Health Sciences Inc, Mississauga, ON, Canada
| | - J R Tagg
- Blis Technologies Ltd, 81 Glasgow Street, South Dunedin, Dunedin 9012, New Zealand
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SRİNİVASAN M, M.S N, POORNİ S. COMPARING THE EFFECT OF PROBIOTIC STREPTOCOCCUS SALIVARIUS K12 AND M18 ON THE STREPTOCOCCUS MUTANS COUNT, SALIVARY PH AND BUFFER CAPACITY: A RANDOMIZED DOUBLE BLINDED CLINICAL TRIAL. CUMHURIYET DENTAL JOURNAL 2022. [DOI: 10.7126/cumudj.941928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Mokhtar M, Rismayuddin NAR, Mat Yassim AS, Ahmad H, Abdul Wahab R, Dashper S, Arzmi MH. Streptococcus salivarius K12 inhibits Candida albicans aggregation, biofilm formation and dimorphism. BIOFOULING 2021; 37:767-776. [PMID: 34425729 DOI: 10.1080/08927014.2021.1967334] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/29/2021] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
Candida albicans causes candidiasis, particularly in immunocompromised patients. Streptococcus salivarius K12 (K12) is a probiotic isolated from a healthy oral cavity. The study aimed to determine the effect of K12 on C. albicans aggregation, biofilm formation and dimorphism. C. albicans ATCC MYA-4901, acquired immunodeficiency syndrome (AIDS) isolate (ALC2), and oral cancer isolate (ALC3) and K12 were used in the study. All C. albicans strains and K12 were grown in yeast peptone dextrose agar and brain heart infusion agar, respectively, prior to aggregation, biofilm and dimorphism assays. Auto-aggregation of C. albicans MYA-4901 and ALC2 was categorised as high, while the co-aggregation of the strains was low in the presence of K12. C. albicans total cell count decreased significantly when co-cultured with K12 compared with monocultured C. albicans biofilm (p < 0.05). Inhibition of yeast-to-hyphae transition was also observed when co-cultured with K12. In conclusion, K12 inhibits C. albicans aggregation, biofilm formation and dimorphism.
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Affiliation(s)
- Munirah Mokhtar
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
- Cluster of Cancer Research Initiative IIUM (COCRII), International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Nurul Alia Risma Rismayuddin
- Cluster of Cancer Research Initiative IIUM (COCRII), International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Aini Syahida Mat Yassim
- Cluster of Cancer Research Initiative IIUM (COCRII), International Islamic University Malaysia, Kuantan, Pahang, Malaysia
- Department of Fundamental Dental and Medical Sciences, Kulliyyah of Dentistry, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Hasna Ahmad
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
- Cluster of Cancer Research Initiative IIUM (COCRII), International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Ridhwan Abdul Wahab
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Stuart Dashper
- Melbourne Dental School, The University of Melbourne, Melbourne, VIC, Australia
| | - Mohd Hafiz Arzmi
- Cluster of Cancer Research Initiative IIUM (COCRII), International Islamic University Malaysia, Kuantan, Pahang, Malaysia
- Department of Fundamental Dental and Medical Sciences, Kulliyyah of Dentistry, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
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Laws GL, Hale JDF, Kemp RA. Human Systemic Immune Response to Ingestion of the Oral Probiotic Streptococcus salivarius BLIS K12. Probiotics Antimicrob Proteins 2021; 13:1521-1529. [PMID: 34282568 DOI: 10.1007/s12602-021-09822-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2021] [Indexed: 12/25/2022]
Abstract
Streptococcus salivarius K12 is an oral probiotic known to contribute to protection against oral pathogenic bacteria in humans. Studies of immune responses to S. salivarius K12 have focused on the oral cavity, and systemic immune responses have not yet been reported. The aim of this study was to identify acute systemic immune responses to the commercial product, S. salivarius BLIS K12, in a double-blinded, placebo-controlled human clinical trial. It was hypothesised that consumption of S. salivarius BLIS K12 would induce an anti-inflammatory response and a decrease in pro-inflammatory cytokines. Blood samples were obtained from participants prior to a single dose of S. salivarius BLIS K12 or a placebo and then secondary blood samples were obtained 24 h and 7 days post-consumption. Samples were analysed using multi-parametric flow cytometry, to quantify immune cell frequency changes, and by a LEGENDplex assay of human inflammatory cytokines. Consumption of S. salivarius BLIS K12 was associated with increased levels of IL-8 at 24 h. The frequency of Tregs increased in samples taken 7 days after probiotic consumption, and IL-10 concentrations were higher at 7 days than 24 h after consumption. There was no difference in the frequency and/or activation of CD4+ T cells, CD8+ T cells, B cells and NK cells. Interestingly, there was an increase in IL-12, 7 days after the consumption of S. salivarius BLIS K12. Collectively, this research demonstrates that ingestion of the probiotic S. salivarius K12 can induce changes in the systemic immune response. The implications of the generation and type of immune response warrant further study to determine potential health benefits.
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Affiliation(s)
- Gemma L Laws
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
| | | | - Roslyn A Kemp
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand.
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Li Y, Shao F, Zheng S, Tan Z, He Y. Alteration of Streptococcus salivarius in Buccal Mucosa of Oral Lichen Planus and Controlled Clinical Trial in OLP Treatment. Probiotics Antimicrob Proteins 2021; 12:1340-1348. [PMID: 32506228 DOI: 10.1007/s12602-020-09664-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Oral lichen planus (OLP) is a T cell-mediated common chronic inflammatory mucosal disease, with limited therapies available for long-term use. Previous study showed that ratio of genus Streptococcus decreased significantly in OLP patients when compared with controls. Buccal cotton swab samples of 43 OLP patients and 48 healthy individuals were collected for real-time quantitative polymerase chain reaction (RT-PCR) to investigate relative abundance alteration of Streptococcus salivarius in OLP lesions. Bacterial supernatants of S. salivarius ATCC® BAA-2593™ were collected by centrifugation and added to HSC-3 cells, and quantitative analysis of expression of IL-1β, IL-6, IL-8, and TNF-α in the HSC-3 cells was determined by RT-PCR. Then, a randomized, non-blinded, controlled study was conducted. Forty patients with symptomatic OLP were randomly allocated into two groups and received topical treatment of 0.1% triamcinolone acetonide dental paste (group A) and S. salivarius K12 lozenge (group B), respectively, for 4 weeks. Sign scores, visual analogue scale (VAS), and adverse reactions were recorded. Relative abundance of S. salivarius in the OLP group was lower than that of control group (P < 0.05). After treated with 0.1% supernatants of S. salivarius ATCC® BAA-2593™, the expression level of IL-6 in the HSC-3 cells significantly reduced (P < 0.001), while IL-1β, IL-8, and TNF- α showed a decreasing tendency (P > 0.05). There was significant reduction in sign scores and VAS scores in both groups after the 4-week treatment, with no significant difference between two groups. No adverse reaction was observed. S. salivarius might maintain local immune balance by inhibiting the NF-κB pathway. Topical application of Streptococcus salivarius K12 seemed to be effective in treatment of symptomatic OLP, especially with promising potential in long-term use. More detailed clinical studies with long follow-up period and standardized usage/dosage are expected to acquire definite conclusions.
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Affiliation(s)
- Yuting Li
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School & Hospital of Stomatology, Tongji University, Middle Yanchang Road 399, Shanghai, People's Republic of China, 200072
| | - Fangyang Shao
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School & Hospital of Stomatology, Tongji University, Middle Yanchang Road 399, Shanghai, People's Republic of China, 200072
| | - Saiwei Zheng
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School & Hospital of Stomatology, Tongji University, Middle Yanchang Road 399, Shanghai, People's Republic of China, 200072
| | - Zhengwu Tan
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School & Hospital of Stomatology, Tongji University, Middle Yanchang Road 399, Shanghai, People's Republic of China, 200072
| | - Yuan He
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School & Hospital of Stomatology, Tongji University, Middle Yanchang Road 399, Shanghai, People's Republic of China, 200072.
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Safety assessment of Streptococcus salivarius DB-B5 as a probiotic candidate for oral health. Food Chem Toxicol 2021; 153:112277. [PMID: 34004226 DOI: 10.1016/j.fct.2021.112277] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 12/17/2022]
Abstract
Streptococcus salivarius DB-B5 was previously isolated from the supragingival plaque of a healthy female adult and selected for development as a probiotic candidate for oral health. Probiotics are an important emerging therapeutic method for preventing, treating, and maintaining oral health. Although S. salivarius is a predominant member of the commensal oral microbiota and generally regarded as a safe species, it is recognized that each strain needs to be comprehensively assessed for safety. This study describes the in silico, in vitro, and clinical testing that were conducted to evaluate the safety of S. salivarius DB-B5. Both 16S rRNA and multi-gene phylogenetic reconstruction was used to confirm the taxonomic identity of this strain. Bioinformatic analysis of the genome demonstrated the absence of transmissible antibiotic resistance genes or virulence factors. Phenotypic testing further showed S. salivarius DB-B5 to be susceptible to clinically relevant antibiotics. S. salivarius DB-B5 displayed weak alpha-hemolysis, and does not produce biogenic amines. In a randomized, double-blind, placebo-controlled clinical study, consumption of S. salivarius DB-B5 at 10 billion CFU/day for 4 weeks by healthy adults was safe and well-tolerated (ClinicalTrials.gov registry number NCT04492631). This work has indicated that S. salivarius DB-B5 is a safe probiotic candidate.
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20
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MacDonald KW, Chanyi RM, Macklaim JM, Cadieux PA, Reid G, Burton JP. Streptococcus salivarius inhibits immune activation by periodontal disease pathogens. BMC Oral Health 2021; 21:245. [PMID: 33962608 PMCID: PMC8103598 DOI: 10.1186/s12903-021-01606-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 04/29/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Periodontal disease represents a major health concern. The administration of beneficial microbes has been increasing in popularity over efforts to manipulate the microbes using antimicrobial agents. This study determined the ability of Streptococcus salivarius to inhibit IL-6 and IL-8 production by gingival fibroblasts when activated by periodontal pathogens and their effect on the salivary microbiome. METHODS Primary human gingival fibroblasts were challenged with Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans and Fusobacterium nucleatum and a combination of all three. IL-6 and IL-8 cytokine release were measured. Using this same model, S. salivarius K12, M18 and different supernatant and whole-cell lysate fractions of S. salivarius K12 were administered to pathogen-induced fibroblasts. A patient study of healthy participants was also conducted to determine the effect S. salivarius K12 had on the native microbiome using 16S next generation sequence analysis. RESULTS All pathogens tested induced a significant IL-6 and IL-8 response. S. salivarius K12 or M18, did not exhibit an increase in inflammatory cytokines. When either of the probiotic strains were co-administered with a pathogen, there were significant reductions in both IL-6 and IL-8 release. This effect was also observed when gingival fibroblasts were pre-treated with either S. salivarius K12 or M18 and then stimulated with the oral pathogens. Chewing gum containing S. salivarius K12 did not alter the salivary microbiome and did not increase inflammatory markers in the oral cavity. CONCLUSION S. salivarius K12 and M18 prevented immune activation induced by periodontal disease pathogens. S. salivarius K12 did not alter the salivary microbiome or induce immune activation when administered as a chewing gum. These results warrant further study to determine if it may be an effective treatment in a model of periodontal disease.
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Affiliation(s)
- Kyle W MacDonald
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,Canadian Centre for Human Microbiome and Probiotic Research, Lawson Health Research Institute, London, ON, Canada
| | - Ryan M Chanyi
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,Canadian Centre for Human Microbiome and Probiotic Research, Lawson Health Research Institute, London, ON, Canada
| | - Jean M Macklaim
- Canadian Centre for Human Microbiome and Probiotic Research, Lawson Health Research Institute, London, ON, Canada.,Department of Biochemistry, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| | - Peter A Cadieux
- Canadian Centre for Human Microbiome and Probiotic Research, Lawson Health Research Institute, London, ON, Canada.,School of Health Sciences, Fanshawe College, London, ON, Canada
| | - Gregor Reid
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,Canadian Centre for Human Microbiome and Probiotic Research, Lawson Health Research Institute, London, ON, Canada
| | - Jeremy P Burton
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada. .,Canadian Centre for Human Microbiome and Probiotic Research, Lawson Health Research Institute, London, ON, Canada. .,Department of Surgery, Division of Urology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.
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21
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Abstract
BACKGROUND Probiotic lactobacilli have been ineffective in preventing acute otitis media. In contrast to lactobacilli, alpha-hemolytic streptococci belong to the core microbiome of nasopharynx. METHODS We investigated the effects of Streptococcus salivarius K12 probiotic on the saliva and nasopharyngeal microbiome in 121 children attending daycare. Children were randomly allocated to receive oral K12 product for 1 month or no treatment. We obtained saliva and nasopharyngeal samples at study entry, at 1 and 2 months. The next-generation sequencing of the bacterial 16S gene was performed. RESULTS After the intervention, the diversity of saliva or nasopharyngeal microbiome did not differ between groups. The proportion of children with any otopathogen did not differ between the groups. At 1 month, the abundance of otopathogens in nasopharynx was lower in K12 group compared with that in control children (34% vs. 55%, P = 0.037). When we compared each otopathogen separately, Moraxella was the only group lower in the treatment group. We could not verify the reduction of Moraxella when an alternative Human Oral Microbiome Database taxonomy database was used. In children receiving K12 product, the mean abundance of S. salivarius was greater in saliva after the intervention (0.9% vs. 2.0%, P = 0.009). CONCLUSIONS The use of S. salivarius K12 probiotic appeared to be safe because it did not disrupt the normal microbiome in young children. Even though a short-term colonization of S. salivarius was observed in the saliva, the impact of S. salivarius K12 probiotic on the otopathogens in nasopharyngeal microbiome remained uncertain.
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Heidari Z, Tajbakhsh A, Gheibi-Hayat SM, Moattari A, Razban V, Berenjian A, Savardashtaki A, Negahdaripour M. Probiotics/ prebiotics in viral respiratory infections: implication for emerging pathogens. Recent Pat Biotechnol 2021; 15:112-136. [PMID: 33874878 DOI: 10.2174/1872208315666210419103742] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/01/2021] [Accepted: 03/10/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND Viral respiratory infections could result in perturbation of the gut microbiota due to a probable cross-talk between lungs and gut microbiota. This can affect the pulmonary health and the gastrointestinal system. OBJECTIVE This review aimed to discuss the impact of probiotics/ prebiotics and supplements on the prevention and treatment of respiratory infections, especially emerging pathogens. METHODS The data were searched were searched in PubMed, Scopus, Google Scholar, Google Patents, and The Lens-Patent using keywords of probiotics and viral respiratory infections in the title, abstract, and keywords. RESULT Probiotics consumption could decrease the susceptibility to viral respiratory infections, such as COVID-19 and simultaneously enhance vaccine efficiency in infectious disease prevention through the immune system enhancement. Probiotics improve the gut microbiota and the immune system via regulating the innate system response and production of anti-inflammatory cytokines. Moreover, treatment with probiotics contributes to the intestinal homeostasis restitution under antibiotic pressure and decreasing the risk of secondary infections due to viral respiratory infections. Probiotics present varied performances in different conditions; thus, promoting their efficacy through combining with supplements (prebiotics, postbiotics, nutraceuticals, berberine, curcumin, lactoferrin, minerals, and vitamins) is important. Several supplements reported to enhance the probiotics' efficacy and their mechanisms as well as probiotics related patents are summarized in this review. Using nanotechnology and microencapsulation techniques can also improve probiotics efficiency. CONCLUSION Given the global challenge of COVID-19, probiotic/prebiotic and following nutritional guidelines should be regarded seriously. Additionally, their role as an adjuvant in vaccination for immune response augmentation needs attention.
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Affiliation(s)
- Zahra Heidari
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz. Iran
| | - Amir Tajbakhsh
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz. Iran
| | - Seyed Mohammad Gheibi-Hayat
- Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd. Iran
| | - Afagh Moattari
- Department of Parasitology and Mycology, Shiraz University of Medical Sciences, Shiraz. Iran
| | - Vahid Razban
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz. Iran
| | - Aydin Berenjian
- School of Engineering, Faculty of Science and Engineering, The University of Waikato, Hamilton. New Zealand
| | - Amir Savardashtaki
- Epilepsy Research Center, Shiraz University of Medical Sciences, Shiraz. Iran
| | - Manica Negahdaripour
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz. Iran
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García-Curiel L, Del Rocío López-Cuellar M, Rodríguez-Hernández AI, Chavarría-Hernández N. Toward understanding the signals of bacteriocin production by Streptococcus spp. and their importance in current applications. World J Microbiol Biotechnol 2021; 37:15. [PMID: 33394178 DOI: 10.1007/s11274-020-02973-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 12/01/2020] [Indexed: 12/25/2022]
Abstract
Microorganisms have developed quorum sensing (QS) systems to detect small signaling molecules that help to control access to additional nutrients and space in highly competitive polymicrobial niches. Many bacterial processes are QS-regulated; two examples are the highly related traits of the natural genetic competence state and the production of antimicrobial peptides such as bacteriocins. The Streptococcus genus is widely studied for its competence and for its ability to produce bacteriocins, as these antimicrobial peptides have significant potential in the treatment of infections caused by multiple-resistant pathogens, a severe public health issue. The transduction of a two-component system controls competence in streptococci: (1) ComD/E, which controls the competence in the Mitis and Anginosus groups, and (2) ComR/S, which performs the same function in the Bovis, Mutans, Salivarius, and Pyogenic groups. The cell-to-cell communication required for bacteriocin production in the Streptococcus groups is controlled mainly by a paralog of the ComD/E system. The relationships between pheromone signals and induction pathways are related to the bacteriocin production systems. In this review, we discuss the recent advances in the understanding of signaling and the induction of bacteriocin biosynthesis by QS regulation in streptococci. This information could aid in the design of better methods for the development and production of these antimicrobial peptides. It could also contribute to the analysis and emerging applications of bacteriocins in terms of their safety, quality, and human health benefits.
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Affiliation(s)
- Laura García-Curiel
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias-Universidad Autónoma del Estado de Hidalgo, Tulancingo de Bravo, México
| | - Ma Del Rocío López-Cuellar
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias-Universidad Autónoma del Estado de Hidalgo, Tulancingo de Bravo, México.
| | - Adriana Inés Rodríguez-Hernández
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias-Universidad Autónoma del Estado de Hidalgo, Tulancingo de Bravo, México
| | - Norberto Chavarría-Hernández
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias-Universidad Autónoma del Estado de Hidalgo, Tulancingo de Bravo, México
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In vitro Interactions between Streptococcus intermedius and Streptococcus salivarius K12 on a Titanium Cylindrical Surface. Pathogens 2020; 9:pathogens9121069. [PMID: 33419248 PMCID: PMC7765831 DOI: 10.3390/pathogens9121069] [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: 11/03/2020] [Revised: 12/11/2020] [Accepted: 12/17/2020] [Indexed: 12/14/2022] Open
Abstract
Peri-implantitis is a steadily rising disease and is caused by oral bacterial pathogens able to form biofilm on implant surfaces and peri-implant tissues, making antibiotics treatment less effective. The use of commercial probiotics against oral pathogens could serve as an alternative to prevent biofilm formation. Streptococcus intermedius is one of the early colonizers of biofilm formation in dental implants. The aim of this study was to model the interaction between S. intermedius and Streptococcus salivarius strain K12, a probiotic bacterium producing bacteriocins. S. intermedius was co-cultured with S. salivarius K12 in an in vitro model simulating the biofilm formation in a dental implant composed by a titanium cylinder system. Biofilm formation rate was assessed by Real-Time PCR quantification of bacterial count and expression levels of luxS gene, used in response to cell density in the biofilm. Biofilm formation, bacteriocin production, luxS expression patterns were found to be already expressed within the first 12 h. More importantly, S. salivarius K12 was able to counter the biofilm formation in a titanium cylinder under the tested condition. In conclusion, our dental implant model may be useful for exploring probiotic-pathogen interaction to find an alternative to antibiotics for peri-implantitis treatment.
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Byrne DF, Geraghty AA, Yelverton CA, Murphy EF, Van Sinderen D, Cotter PD, McAuliffe FM. The impact of probiotic supplementation on metabolic health in healthy women of reproductive age: a systematic review. Food Funct 2020; 11:10279-10289. [PMID: 33174573 DOI: 10.1039/d0fo01727b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Products containing probiotics are targeted at healthy or at-risk individuals as a preventative measure to minimise disease risk. Most studies assessing the efficacy of probiotics in humans include a mixture of healthy and unhealthy populations, while studies that focus solely on female populations are largely limited to pregnancy or those with health conditions. Pre-conception is a significant time-point during the life-course, and improving female health status during this period may positively influence future offspring. The objective of this review is to assess the effect of probiotics administered in oral capsule formulation, on metabolic and immune markers in healthy, non-pregnant women of reproductive age. This review followed the PRISMA guidelines. Pubmed, EMBASE, CINAHL, and Web of Science were searched for relevant studies. English language articles relating to randomised-controlled trials were included. The search returned 3250 publications after duplicates were removed. Title (2516), abstract (642), and full text (87) screening excluded 3993 studies from consideration. Five papers were identified with outcomes of interest, and analysis of these showed no conclusive evidence that probiotic capsule supplementation elicited positive effects in this healthy population. This study highlights the need for further research to investigate the role that probiotics play during the pre-conception period, on female metabolic and immune health.
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Affiliation(s)
- David F Byrne
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland.
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Barbour A, Wescombe P, Smith L. Evolution of Lantibiotic Salivaricins: New Weapons to Fight Infectious Diseases. Trends Microbiol 2020; 28:578-593. [PMID: 32544444 DOI: 10.1016/j.tim.2020.03.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 01/20/2020] [Accepted: 03/09/2020] [Indexed: 02/06/2023]
Abstract
Lantibiotic salivaricins are polycyclic peptides containing lanthionine and/or β-methyllanthionine residues produced by certain strains of Streptococcus salivarius, which almost exclusively reside in the human oral cavity. The importance of these molecules stems from their antimicrobial activity towards relevant oral pathogens which has so far been applied through the development of salivaricin-producing probiotic strains. However, salivaricins may also prove to be of great value in the development of new and novel antibacterial therapies in this era of emerging antibiotic resistance. In this review, we describe the biosynthesis, antimicrobial activity, structure, and mode of action of the lantibiotic salivaricins characterized to date. Moreover, we also provide an expert opinion and suggestions for future development of this important field of microbiology.
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Affiliation(s)
| | - Philip Wescombe
- Yili Innovation Center Oceania, Lincoln University, Christchurch, New Zealand
| | - Leif Smith
- Department of Biology, College of Science, Texas A&M University, College Station, TX, USA
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He L, Yang H, Chen Z, Ouyang X. The Effect of Streptococcus salivarius K12 on Halitosis: a Double-Blind, Randomized, Placebo-Controlled Trial. Probiotics Antimicrob Proteins 2020; 12:1321-1329. [PMID: 32227309 DOI: 10.1007/s12602-020-09646-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This study was to evaluate the effect of Streptococcus salivarius K12 on tongue coating-associated halitosis. Twenty-eight subjects having tongue coating-associated halitosis were randomly divided into either a test or control group. For each of the 30 days, the test subjects sucked S. salivarius K12 tablet while the control subjects sucked placebo tablets. All the subjects did not take physical (tongue scraping) and chemical (antiseptic mouth-rinse) oral cavity pretreatment prior to use of the tablets. At baseline, and on the 1st, 7th, and 14th day after completing the course of tablets, the subjects were assessed for their organoleptic test (OLT) scores, volatile sulfur compound (VSC) levels, and tongue coating scores (TCS). During the course, all subjects kept their routine oral care habits without scraping their tongue coating. Plaque index, probing depth, and bleeding index were recorded at baseline and at the completion of the trial. On the 1st day following the end of tablet use, the OLT scores and VSC levels had significantly decreased in the test group when compared with the baseline values (P = 0.001 and P = 0.012). The TCS in the test group were also significantly decreased (P = 0.05). At days 7 and 14, the OLT scores in the test group were still significantly lower than the baseline levels (P = 0.006 and P = 0.039 respectively). However, there were no statistical differences with OLT, VSC, and TCS between the test group and the placebo group by analysis of multi-level regression model. The use of S. salivarius K12 did not have significant effect on halitosis with tongue coating cause when the tongue coating was not physically or chemically pre-treated, which implies removing tongue coating is required before Streptococcus salivarius K12 use.
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Affiliation(s)
- Lu He
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Hongjiang Yang
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
- Department of Stomatology, Aerospace Center Hospital, Beijing, 100049, People's Republic of China
| | - Ziyuan Chen
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Xiangying Ouyang
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China.
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In vitro inhibitory effect of two commercial probiotics on chromogenic actinomycetes. Eur Arch Paediatr Dent 2020; 21:673-677. [PMID: 32034698 DOI: 10.1007/s40368-020-00512-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 01/29/2020] [Indexed: 10/25/2022]
Abstract
PURPOSE Black extrinsic discoloration is a common clinical and aesthetic problem. This study aims to evaluate the potential in vitro antagonistic activity of two commercial probiotics, Streptococcus salivarius M18 and Lactobacillus reuteri ProDentis, against microorganisms associated with black stains. METHODS Streptococcus salivarius M18 and Lactobacillus reuteri were tested against Aggregatibacter actinomycetemcomitans and Actinomyces naeslundiiusing their cell-free fermentative broth in a planktonic growth inhibition test. RESULTS Both probiotic cell-free supernatants showed the ability to reduce the pathogenic bacteria growth in a dose-dependent way. Streptococcus salivarius M18 showed a stronger antimicrobial activity than Lactobacillus reuteri ProDentis against the two indicator strains used. A. naeslundi was less susceptible to the probiotic activity of both S. salivarius and L. reuteri compared to A. actinomycetemcomitans. CONCLUSIONS The obtained results demonstrate a potent antagonistic ability of probiotics to reduce the growth of microorganisms associated with black tooth stains. Therefore, these strains could be evaluated for a therapeutic use against dental pigmentations.
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Kazemi A, Soltani S, Ghorabi S, Nasri F, Babajafari S, Mazloomi SM. Is Probiotic and Synbiotic Supplementation Effective on Immune Cells? A Systematic Review and Meta-analysis of Clinical Trials. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2019.1710748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Asma Kazemi
- Nutrition research center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sepideh Soltani
- Yazd Cardiovascular research center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sima Ghorabi
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetic, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Nasri
- Department immunology, School of medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sivash Babajafari
- Nutrition research center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mohammad Mazloomi
- Nutrition research center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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Mohr AE, Basile AJ, Crawford MS, Sweazea KL, Carpenter KC. Probiotic Supplementation Has a Limited Effect on Circulating Immune and Inflammatory Markers in Healthy Adults: A Systematic Review of Randomized Controlled Trials. J Acad Nutr Diet 2019; 120:548-564. [PMID: 31648930 DOI: 10.1016/j.jand.2019.08.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 08/12/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND A main mechanism of action proposed for oral probiotic supplementation is immunomodulation, which is expected to impart health benefits in the host by influencing circulating immune and inflammatory factors. To date, the effectiveness of probiotic supplementation for immunomodulation in healthy adults without disease has not been evaluated in a systematic review. OBJECTIVE The objective of this systematic review was to evaluate the effect of probiotic supplementation on circulating immune and inflammatory markers of healthy adults compared to placebo. METHODS PubMed, SCOPUS, ISI Web of Science, ProQuest, and Cochrane databases were searched for English articles up to May 15, 2019. Additional papers were identified by checking references of relevant papers. Only randomized controlled trials studying the administration of probiotic supplements compared to placebo on immune and inflammatory markers in healthy adults (aged 18 to 65 years), without acute or chronic disease, and in generally good health were examined. Independent extraction of articles was conducted by two authors using predefined search terms and restrictions/filters. The methodologic quality of each study was appraised using the Academy of Nutrition and Dietetics Evidence Analysis Library Quality Rating Worksheet and the body of evidence was assessed using the Academy of Nutrition and Dietetics Grade Definitions and Conclusion Grading Table. RESULTS Eighteen articles, including 819 subjects, met eligibility criteria and were included in the present systematic review. Five articles were rated neutral in quality and 13 were rated high in quality. Eight articles reported a significant effect on immune and/or inflammatory parameters including increases in natural killer cells, lymphocytes, and monocytes, and decreases in proinflammatory cytokine concentrations. CONCLUSIONS Based on the 18 articles extracted in this systemic review, probiotic supplementation was concluded to have a limited effect on immune and inflammatory markers in healthy adults. Overall, the evidence was heterogenous, precluding a meta-analysis, and difficult to aggregate and conclude on effect size. SYSTEMATIC REVIEW REGISTRATION NUMBER PROSPERO ref CRD42018110856.
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Hu L, Mao Q, Zhou P, Lv X, Hua H, Yan Z. Effects of Streptococcus salivarius K12 with nystatin on oral candidiasis-RCT. Oral Dis 2019; 25:1573-1580. [PMID: 31177581 DOI: 10.1111/odi.13142] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/12/2019] [Accepted: 05/25/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To evaluate the efficacy and safety of Streptococcus salivarius K12 as an adjuvant in treating oral candidiasis. METHODS A total of 56 patients were participated in the randomized, double-blinded, placebo-controlled clinical trial. The S. salivarius K12 or placebo lozenges plus nystatin tablets were given for up to 4 weeks at 1-week interval and then followed up for 1 week thereafter. We collected and analyzed the mycological and clinical data, treatment course, and safety data. RESULTS At the end of the treatment, significant differences were found in the mycological cure rates between K12 group and control group (90.48% and 55.56%, respectively, p = 0.008). Survival analysis demonstrated no statistical difference in overall cure rates comprehensively considering mycological cure, clinical improvement, and recurrence (p = 0.078), while statistical difference was found in mycological cure (p = 0.013) between the two groups. The median treatment courses of K12 group and control group were 3 weeks and 4 weeks, respectively. No severe events were reported during the study. CONCLUSION Streptococcus salivarius K12 exhibited potential efficacy and safety as an adjuvant in treating oral candidiasis by enhancing mycological cure and shortening the treatment course of conventional antifungal therapy in this randomized, double-blinded, placebo-controlled clinical trial. Further large-scale clinical studies are desired to accumulate more evidence for its clinical applications.
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Affiliation(s)
- Lijun Hu
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
| | - Qinghua Mao
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
| | - Peiru Zhou
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xin Lv
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
| | - Hong Hua
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
| | - Zhimin Yan
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
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Effect of probiotic and synbiotic supplementation on inflammatory markers in health and disease status: A systematic review and meta-analysis of clinical trials. Clin Nutr 2019; 39:789-819. [PMID: 31060892 DOI: 10.1016/j.clnu.2019.04.004] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/31/2019] [Accepted: 04/01/2019] [Indexed: 02/06/2023]
Abstract
The current systematic review and meta-analysis investigated the effect of probiotic/synbiotic on a wide range of inflammatory and anti-inflammatory markers in healthy and various disease conditions. PubMed, SCOPUS and Web of Science databases were searched. All clinical trials which investigated the effect of oral administration of probiotic or synbiotic on inflammatory markers (C-reactive protein (CRP), interleukin (IL) 1β, IL-4, IL-6, IL-8, IL-10, IL-12, tumor necrosis factor (TNF) α, interferon (IFN) γ and transforming growth factor (TGF) β) for more than one week with concurrent control groups were included. One-hundred sixty seven publications was analysed. Results were as follows: CRP decreased in healthy, metabolic disorders, inflammatory bowel disease (IBD), arthritis and critically ill condition but not in renal failure. IL-1B: no change in healthy subjects and arthritis. TNF-α: decreased in healthy, fatty liver, IBD and hepatic cirrhosis, no change in diabetes, metabolic syndrome (MS) + PCOS (polycystic ovary syndrome) and arthritis. IL-6: no change in healthy, metabolic disorders and arthritis, increased in cirrhosis and renal failure, decreased in PCOS + MS. IL-10: no change in healthy, IBD and metabolic disorders, increased in arthritis. IL-4, IL-8, IL-12, IFN-g and TGF-b: no change in healthy subjects. In conclusion, probiotic/synbiotic decreased some of the inflammatory markers. The intervention was most effective in CRP and TNF-α reduction in healthy or disease state. Moreover, the intervention decreased inflammation most effectively in the following disease conditions, respectively: IBD, arthritis, fatty liver. PROSPERO REGISTRATION NUMBER: CRD42018088688.
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Wilcox CR, Stuart B, Leaver H, Lown M, Willcox M, Moore M, Little P. Effectiveness of the probiotic Streptococcus salivarius K12 for the treatment and/or prevention of sore throat: a systematic review. Clin Microbiol Infect 2019; 25:673-680. [PMID: 30616011 DOI: 10.1016/j.cmi.2018.12.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/21/2018] [Accepted: 12/23/2018] [Indexed: 01/12/2023]
Abstract
BACKGROUND Sore throat resulting from pharyngotonsillitis is one of the commonest reasons for primary care consultation and inappropriate antibiotic prescription and finding effective alternative treatments is important. OBJECTIVES To review the evidence for using the probiotic Streptococcus salivarius K12 (SsK12) for the prevention or treatment of pharyngotonsillitis. DATA SOURCES PubMed, Embase, CINAHL and Cochrane Library. STUDY ELIGIBILITY CRITERIA Randomized controlled trials (RCTs). PARTICIPANTS Adults or children. INTERVENTIONS SsK12 as active treatment or prophylaxis, against pharyngotonsillitis. METHODS Literature search. RESULTS Four articles were identified (1846 participants). All were deemed to be of poor quality using the Cochrane risk-of-bias assessment. Two trials studied SsK12 prophylaxis for streptococcal pharyngitis (children without history of recurrence). One compared daily administration of SsK12 to no treatment over 6 months (n = 222, age 33-45 months), reporting significantly lower incidence in the SsK12 group (16.2% vs. 48.6%, p < 0.01), whereas another placebo-controlled RCT over four school terms (n = 1314, 5-14 years) found no significant difference (7.8% vs. 8.8%, p 0.34) with SsK12 (administered on school days). Another trial found daily SsK12 to significantly protect children (n = 250, 6-7 years) against chronic adenoiditis exacerbation over 3 months compared to no treatment (71.7% vs. 100%, p < 0.0001). The one placebo-controlled RCT in adults that studied the use of SsK12 for acute pharyngotonsillitis (concurrently with penicillin) showed no significant benefit. In all trials, SsK12 was safe and well tolerated. CONCLUSIONS SsK12 appears safe and well tolerated. However, further RCTs are required to establish its role as a prophylactic therapy, particularly among patients experiencing frequent exacerbations of pharyngitis. In the acute setting, SsK12 is unlikely to be effective if given concurrently with antibiotics; however, further RCTs should establish its role as an alternative to antibiotics in nonsevere cases or when prescribed after antibiotic therapy for the prevention of disease recurrence and/or secondary infection.
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Affiliation(s)
- C R Wilcox
- NIHR Clinical Research Facility, University Hospital Southampton NHS Foundation Trust, UK; Department of Primary Care and Population Sciences, Aldermoor Health Centre, University of Southampton, Southampton, UK.
| | - B Stuart
- Department of Primary Care and Population Sciences, Aldermoor Health Centre, University of Southampton, Southampton, UK
| | - H Leaver
- Department of Primary Care and Population Sciences, Aldermoor Health Centre, University of Southampton, Southampton, UK
| | - M Lown
- Department of Primary Care and Population Sciences, Aldermoor Health Centre, University of Southampton, Southampton, UK
| | - M Willcox
- Department of Primary Care and Population Sciences, Aldermoor Health Centre, University of Southampton, Southampton, UK
| | - M Moore
- Department of Primary Care and Population Sciences, Aldermoor Health Centre, University of Southampton, Southampton, UK
| | - P Little
- Department of Primary Care and Population Sciences, Aldermoor Health Centre, University of Southampton, Southampton, UK
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FANTINATO V, CAMARGO HR, SOUSA ALOPD. Probiotics study with Streptococcus salivarius and its ability to produce bacteriocins and adherence to KB cells. REVISTA DE ODONTOLOGIA DA UNESP 2019. [DOI: 10.1590/1807-2577.02919] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Introduction Streptococcus salivarius is a dominant oral species and the best suitable candidate for probiotic of the oral cavity. Since Streptococcus salivarius is able to produce bacteriocins against Streptococcus pyogenes interest has been focused on the use of it as a probiotic to avoid sore throats by Streptococcus pyogenes. Objective This study is for selecting Streptococcus salivarius strains for potential use as probiotics for the oral mucosa, that is, production of bacteriocin against Streptococcus pyogenes and the ability to bind to KB cells. Material and method Tongue material from 45 students was collected and seeded on Mitis Salivarius Agar plaques. The strains were tested by the production of bacteriocin-like substances (BLIS) against S. pyogenes, biochemically and PCR for identification of S. salivarius. The best strains were tested for adherence to KB cells. Briefly, S. salivarius strains were cultured in broth, washed and suspended at 108cells/ml. KB cells were inoculated into plaques, washed and incubated with the bacteria, for adhesion. These were washed for lysis of the KB cells and release bacteria for determination of CFU. Result The bacteriocin test showed that 133 strains presented inhibition of S. pyogenes. The samples tested for adhesion to KB cells, presented different profiles and only three strains presenting high adhesion capacity. Conclusion The selection of strains of Streptococcus salivarius with high inhibitory activity against Streptococcus pyogenes, as well as adherence to KB cells leads us to the next future step, that is, to use the best strains for in vivo colonization tests
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Geng M, Deng P, Mire T, Austin F, Smith L. Draft Genome Sequence of the Lantibiotic-Producing Strain Streptococcus salivarius HS0302. Microbiol Resour Announc 2019; 8:e01410-18. [PMID: 30637392 PMCID: PMC6318363 DOI: 10.1128/mra.01410-18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 11/16/2018] [Indexed: 11/29/2022] Open
Abstract
Streptococcus salivarius is a prevalent commensal species of human oral mucosal surfaces. S. salivarius strain HS0302 produces the type AII lantibiotic salivaricin A2. Here, we report its draft genome sequence, revealing its potential to produce a variety of bacteriocins.
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Affiliation(s)
- Mengxin Geng
- Department of Biology, Texas A&M University, College Station, Texas, USA
| | - Peng Deng
- Chinese Academy of Financial Inclusion, Renmin University of China, Beijing, China
| | - Timothy Mire
- Department of Biology, Texas A&M University, College Station, Texas, USA
| | - Frank Austin
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - Leif Smith
- Department of Biology, Texas A&M University, College Station, Texas, USA
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Baindara P, Korpole S, Grover V. Bacteriocins: perspective for the development of novel anticancer drugs. Appl Microbiol Biotechnol 2018; 102:10393-10408. [PMID: 30338356 DOI: 10.1007/s00253-018-9420-8] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/26/2018] [Accepted: 09/26/2018] [Indexed: 11/26/2022]
Abstract
Antimicrobial peptides (AMPs) from prokaryotic source also known as bacteriocins are ribosomally synthesized by bacteria belonging to different eubacterial taxonomic branches. Most of these AMPs are low molecular weight cationic membrane active peptides that disrupt membrane by forming pores in target cell membranes resulting in cell death. While these peptides known to exhibit broad-spectrum antimicrobial activity, including antibacterial and antifungal, they displayed minimal cytotoxicity to the host cells. Their antimicrobial efficacy has been demonstrated in vivo using diverse animal infection models. Therefore, we have discussed some of the promising peptides for their ability towards potential therapeutic applications. Further, some of these bacteriocins have also been reported to exhibit significant biological activity against various types of cancer cells in different experimental studies. In fact, differential cytotoxicity towards cancer cells as compared to normal cells by certain bacteriocins directs for a much focused research to utilize these compounds as novel therapeutic agents. In this review, bacteriocins that demonstrated antitumor activity against diverse cancer cell lines have been discussed emphasizing their biochemical features, selectivity against extra targets and molecular mechanisms of action.
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Affiliation(s)
- Piyush Baindara
- MTCC and Gene Bank, CSIR-Institute of Microbial Technology, Sector 39A, Chandigarh, India
| | - Suresh Korpole
- MTCC and Gene Bank, CSIR-Institute of Microbial Technology, Sector 39A, Chandigarh, India
| | - Vishakha Grover
- Dr. HS Judge Dental Institute and Hospital, Punjab University, Sector 25, Chandigarh, 160014, India.
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Damaceno QS, Souza JP, Nicoli JR, Paula RL, Assis GB, Figueiredo HC, Azevedo V, Martins FS. Evaluation of Potential Probiotics Isolated from Human Milk and Colostrum. Probiotics Antimicrob Proteins 2018; 9:371-379. [PMID: 28374172 DOI: 10.1007/s12602-017-9270-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Several studies have demonstrated a diversity of bacterial species in human milk, even in aseptically collected samples. The present study evaluated potential probiotic bacteria isolated from human milk and associated maternal variables. Milk samples were collected from 47 healthy women and cultured on selective and universal agar media under aerobic and anaerobic conditions. Bacterial isolates were counted and identified by Biotyper Matrix-Assisted Laser Desorption Ionization-Time of Flight mass spectrometry and then tested for probiotic properties. Total bacteria in human milk ranged from 1.5 to 4.0 log10 CFU/mL. The higher bacterial counts were found in colostrum (mean = 3.9 log10 CFU/mL, 95% CI 3.14-4.22, p = 0.00001). The most abundant species was Staphylococcus epidermidis (n = 76). The potential probiotic candidates were Lactobacillus gasseri (n = 4), Bifidobacterium breve (n = 1), and Streptococcus salivarius (n = 4). Despite the small sample size, L. gasseri was isolated only in breast milk from mothers classified into a normal weight range and after a vaginally delivered partum. No potential probiotics showed antagonism against pathogens, but all of them agglutinated different pathogens. Nine bacterial isolates belonging to the species L. gasseri, B. breve, and S. salivarius were selected as potential probiotics. The present study confirms the presence in breast milk of a bacterial microbiota that could be the source of potential probiotic candidates to be used in the formula of simulated maternal milk.
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Affiliation(s)
- Quésia S Damaceno
- Laboratory of Biotherapeutic Agents, Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jaqueline P Souza
- Laboratory of Biotherapeutic Agents, Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jacques R Nicoli
- Laboratory of Microbial Ecology and Physiology, Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Raquel L Paula
- Neonatology, Hospital Sofia Feldman, Belo Horizonte, MG, Brazil
| | - Gabriela B Assis
- AQUACEN, National Reference Laboratory for Aquatic Animal Diseases, Ministry of Fisheries and Aquaculture, Veterinary School, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Henrique C Figueiredo
- AQUACEN, National Reference Laboratory for Aquatic Animal Diseases, Ministry of Fisheries and Aquaculture, Veterinary School, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Vasco Azevedo
- Laboratory of Cellular and Molecular Genetics, Department of General Biology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Flaviano S Martins
- Laboratory of Biotherapeutic Agents, Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. .,Laboratory of Microbial Ecology and Physiology, Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. .,Laboratório de Agentes Bioterapêuticos, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627, C.P. 486, Pampulha - Campus UFMG, Belo Horizonte, MG, 31270-901, Brazil.
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Covalent Structure and Bioactivity of the Type AII Lantibiotic Salivaricin A2. Appl Environ Microbiol 2018; 84:AEM.02528-17. [PMID: 29269497 DOI: 10.1128/aem.02528-17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 12/18/2017] [Indexed: 01/31/2023] Open
Abstract
Lantibiotics are a class of lanthionine-containing, ribosomally synthesized, and posttranslationally modified peptides (RiPPs) produced by Gram-positive bacteria. Salivaricin A2 belongs to the type AII lantibiotics, which are generally considered to kill Gram-positive bacteria by binding to the cell wall precursor lipid II via a conserved ring A structure. Salivaricin A2 was first reported to be isolated from a probiotic strain, Streptococcus salivarius K12, but the structural and bioactivity characterizations of the antibiotic have remained limited. In this study, salivaricin A2 was purified and its covalent structure was characterized. N-terminal analogues of salivaricin A2 were generated to study the importance for bioactivity of the length and charge of the N-terminal amino acids. Analogue salivaricin A2(3-22) has no antibacterial activity and does not have an antagonistic effect on the native compound. The truncated analogue also lost its ability to bind to lipid II in a thin-layer chromatography (TLC) assay, suggesting that the N-terminal amino acids are important for binding to lipid II. The creation of N-terminal analogues of salivaricin A2 promoted a better understanding of the bioactivity of this antibiotic and further elucidated the structural importance of the N-terminal leader peptide. The antibacterial activity of salivaricin A2 is due not only to the presence of the positively charged N-terminal amino acid residues, but to the length of the N-terminal linear peptide.IMPORTANCE The amino acid composition of the N-terminal linear peptide of salivaricin A2 is crucial for function. Our study shows that the length of the amino acid residues in the linear peptide is crucial for salivaricin A2 antimicrobial activity. Very few type AII lantibiotic covalent structures have been confirmed. The characterization of the covalent structure of salivaricin A2 provides additional support for the predicted lanthionine and methyl-lanthionine ring formations present in this structural class of lantibiotics. Removal of the N-terminal Lys1 and Arg2 residues from the peptide causes a dramatic shift in the chemical shift values of amino acid residues 7 through 9, suggesting that the N-terminal amino acids contribute to a distinct structural conformer for the linear peptide region. The demonstration that the bioactivity could be partially restored with the substitution of N-terminal alanine residues supports further studies aimed at determining whether new analogues of salivaricin A2 for novel applications can be synthesized.
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Bardanzellu F, Fanos V, Strigini FAL, Artini PG, Peroni DG. Human Breast Milk: Exploring the Linking Ring Among Emerging Components. Front Pediatr 2018; 6:215. [PMID: 30131948 PMCID: PMC6091001 DOI: 10.3389/fped.2018.00215] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 07/13/2018] [Indexed: 12/19/2022] Open
Abstract
Maternal breast milk (BM) is a complex and unique fluid that evolution adapted to satisfy neonatal needs; in addition to classical nutrients, it contains several bioactive components. BM characteristically shows inter-individual variability, modifying its composition during different phases of lactation. BM composition, determining important consequences on neonatal gut colonization, influences both short and long-term development. Maternal milk can also shape neonatal microbiota, through its glycobiome rich in Lactobacilli spp. and Bifidobacteria spp. Therefore, neonatal nourishment during the first months of life seems the most important determinant of individual's outcomes. Our manuscript aims to provide new evidence in the characterization of BM metabolome and microbiome, and its comparison to formula milk, allowing the evaluation of each nutrient's influence on neonatal metabolism. This result very interesting since potentially offers an innovative approach to investigate the complex relationship between BM components and infant's health, also providing the chance to intervene in a sartorial way on diet composition, according to the nutritional requests. Future research, integrating metabolomics, microbiomics and stem cells knowledge, could make significant steps forward in understanding BM extraordinary properties and functions.
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Affiliation(s)
- Flaminia Bardanzellu
- Neonatal Intensive Care Unit, Neonatal Pathology and Neonatal Section, Azienda Ospedaliera Universitaria di Cagliari, University of Cagliari, Cagliari, Italy
| | - Vassilios Fanos
- Neonatal Intensive Care Unit, Neonatal Pathology and Neonatal Section, Azienda Ospedaliera Universitaria di Cagliari, University of Cagliari, Cagliari, Italy
| | | | - Paolo G Artini
- Gynecology and Obstetrics, Università degli Studi di Pisa, Pisa, Italy
| | - Diego G Peroni
- Section of Pediatric, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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A purified membrane protein from Akkermansia muciniphila or the pasteurized bacterium improves metabolism in obese and diabetic mice. Nat Med 2016; 23:107-113. [PMID: 27892954 DOI: 10.1038/nm.4236] [Citation(s) in RCA: 1253] [Impact Index Per Article: 156.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 10/17/2016] [Indexed: 12/14/2022]
Abstract
Obesity and type 2 diabetes are associated with low-grade inflammation and specific changes in gut microbiota composition. We previously demonstrated that administration of Akkermansia muciniphila to mice prevents the development of obesity and associated complications. However, the underlying mechanisms of this protective effect remain unclear. Moreover, the sensitivity of A. muciniphila to oxygen and the presence of animal-derived compounds in its growth medium currently limit the development of translational approaches for human medicine. We have addressed these issues here by showing that A. muciniphila retains its efficacy when grown on a synthetic medium compatible with human administration. Unexpectedly, we discovered that pasteurization of A. muciniphila enhanced its capacity to reduce fat mass development, insulin resistance and dyslipidemia in mice. These improvements were notably associated with a modulation of the host urinary metabolomics profile and intestinal energy absorption. We demonstrated that Amuc_1100, a specific protein isolated from the outer membrane of A. muciniphila, interacts with Toll-like receptor 2, is stable at temperatures used for pasteurization, improves the gut barrier and partly recapitulates the beneficial effects of the bacterium. Finally, we showed that administration of live or pasteurized A. muciniphila grown on the synthetic medium is safe in humans. These findings provide support for the use of different preparations of A. muciniphila as therapeutic options to target human obesity and associated disorders.
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Di Pierro F, Colombo M, Zanvit A, Rottoli AS. Positive clinical outcomes derived from using Streptococcus salivarius K12 to prevent streptococcal pharyngotonsillitis in children: a pilot investigation. DRUG HEALTHCARE AND PATIENT SAFETY 2016; 8:77-81. [PMID: 27920580 PMCID: PMC5123729 DOI: 10.2147/dhps.s117214] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Background Streptococcus salivarius K12 (BLIS K12®) is a probiotic strain producing the bacteriocins salivaricin A2 and salivaricin B, both of which strongly antagonize the growth of Streptococcus pyogenes, the most important bacterial cause of pharyngeal infections in humans. It successfully colonizes and exhibits persistence in the oral cavity and is endowed with an excellent safety profile. Previous observations of a small group of children indicated that the use of BLIS K12 could also reduce the occurrence of viral pharyngitis. The present study focused on a further evaluation of the role of BLIS K12 in the control of pediatric streptococcal disease and moreover whether its use could also help provide protection against various nonstreptococcal infections. Methods In total, 48 children with a recent history of recurrent pharyngeal streptococcal disease were enrolled in the treated group. The control group comprised 76 children known to have had a very low recent occurrence of oral streptococcal disease. The treated children were given BLIS K12 daily for 90 days. The number of episodes of streptococcal pharyngotonsillitis, tracheitis, viral pharyngitis, rhinitis, flu, laryngitis, acute otitis media, enteritis, and stomatitis was recorded during probiotic treatment and for a follow-up period of 9 months, and this was compared with the episodes of the control group over the corresponding period. Results Compared with the pretreatment time period, 2013, a 90% reduction of streptococcal pharyngeal disease was observed in 2014; compared with untreated children, a statistically significant reduction of all of the other disease conditions assessed, other than stomatitis, was detected in the probiotic-treated children. Conclusion In agreement with previous findings, in the present study, it was found that the daily use of BLIS K12 has been associated with a concurrent and persisting reduction in the occurrence of pharyngeal, recurrent, streptococcal disease. Moreover, the benefits to children may also extend to a reduction of nonstreptococcal diseases, including tracheitis, viral pharyngitis, rhinitis, flu, laryngitis, acute otitis media, and enteritis.
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Manning J, Dunne EM, Wescombe PA, Hale JDF, Mulholland EK, Tagg JR, Robins-Browne RM, Satzke C. Investigation of Streptococcus salivarius-mediated inhibition of pneumococcal adherence to pharyngeal epithelial cells. BMC Microbiol 2016; 16:225. [PMID: 27681377 PMCID: PMC5041332 DOI: 10.1186/s12866-016-0843-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 09/20/2016] [Indexed: 02/04/2023] Open
Abstract
Background Pneumococcal adherence to the nasopharyngeal epithelium is a critical step in colonisation and disease. The probiotic bacterium, Streptococcus salivarius, can inhibit pneumococcal adherence to epithelial cells in vitro. We investigated the mechanism(s) of inhibition using a human pharyngeal epithelial cell line (Detroit 562) following pre-administration of two different strains of S. salivarius. Results Whilst the bacteriocin-encoding megaplasmids of S. salivarius strains K12 and M18 were essential to prevent pneumococcal growth on solid media, they were not required to inhibit pneumococcal adherence. Experiments testing S. salivarius K12 and two pneumococcal isolates (serotypes 19F and 6A) showed that inhibition of 19F may involve S. salivarius-mediated blocking of pneumococcal binding sites: a negative correlation was observed between adherence of K12 and 19F, and no inhibition occurred when K12 was prevented from contacting epithelial cells. K12-mediated inhibition of adherence by 6A may involve additional mechanisms, since no correlation was observed between adherence of K12 and 6A, and K12 could inhibit 6A adherence in the absence of cell contact. Conclusions These results suggest that S. salivarius employs several mechanisms, including blocking pneumococcal binding sites, to reduce pneumococcal adherence to pharyngeal epithelial cells. These findings extend our understanding of how probiotics may inhibit pneumococcal adherence and could assist with the development of novel strategies to prevent pneumococcal colonisation in the future. Electronic supplementary material The online version of this article (doi:10.1186/s12866-016-0843-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jayne Manning
- Pneumococcal Research, Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC, Australia.,Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, Australia
| | - Eileen M Dunne
- Pneumococcal Research, Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC, Australia
| | | | | | - E Kim Mulholland
- Pneumococcal Research, Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC, Australia.,London School of Hygiene and Tropical Medicine, London, UK
| | - John R Tagg
- Blis Technologies Ltd, Dunedin, New Zealand.,Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
| | - Roy M Robins-Browne
- Infectious Diseases and Microbiology, Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC, Australia.,Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, Australia
| | - Catherine Satzke
- Pneumococcal Research, Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC, Australia. .,Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, Australia. .,Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia.
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Laleman I, Yilmaz E, Ozcelik O, Haytac C, Pauwels M, Herrero ER, Slomka V, Quirynen M, Alkaya B, Teughels W. The effect of a streptococci containing probiotic in periodontal therapy: a randomized controlled trial. J Clin Periodontol 2015; 42:1032-41. [DOI: 10.1111/jcpe.12464] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Isabelle Laleman
- Department of Oral Health Sciences; KU Leuven & Dentistry; University Hospitals Leuven; Leuven Belgium
| | - Eftal Yilmaz
- Department of Periodontology; Faculty of Dentistry; Cukurova Univerisity; Adana Turkey
| | - Onur Ozcelik
- Department of Periodontology; Faculty of Dentistry; Cukurova Univerisity; Adana Turkey
| | - Cenk Haytac
- Department of Periodontology; Faculty of Dentistry; Cukurova Univerisity; Adana Turkey
| | - Martine Pauwels
- Department of Oral Health Sciences; KU Leuven & Dentistry; University Hospitals Leuven; Leuven Belgium
| | - Esteban R. Herrero
- Department of Oral Health Sciences; KU Leuven & Dentistry; University Hospitals Leuven; Leuven Belgium
| | - Vera Slomka
- Department of Oral Health Sciences; KU Leuven & Dentistry; University Hospitals Leuven; Leuven Belgium
| | - Marc Quirynen
- Department of Oral Health Sciences; KU Leuven & Dentistry; University Hospitals Leuven; Leuven Belgium
| | - Bahar Alkaya
- Department of Periodontology; Faculty of Dentistry; Cukurova Univerisity; Adana Turkey
| | - Wim Teughels
- Department of Oral Health Sciences; KU Leuven & Dentistry; University Hospitals Leuven; Leuven Belgium
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Di Pierro F, Zanvit A, Nobili P, Risso P, Fornaini C. Cariogram outcome after 90 days of oral treatment with Streptococcus salivarius M18 in children at high risk for dental caries: results of a randomized, controlled study. Clin Cosmet Investig Dent 2015; 7:107-13. [PMID: 26491371 PMCID: PMC4598214 DOI: 10.2147/ccide.s93066] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dental caries is the most common chronic disease of childhood. Cariogram is a well-recognized algorithm-based software program based on different caries-related risk factors and intended to aid clinicians in performing more objective and consistent dental caries risk assessments. This type of approach precedes the diagnosis of caries and allows the dentist to identify at-risk patients and then take appropriate preventive measures before caries develop further. One of the etiological factors favoring the development of dental caries is the mutans streptococci. These acidogenic dental plaque inhabitants can be effectively antagonized by the activity of bacteriocins released by the probiotic Streptococcus salivarius M18 (salivarius M18). Moreover, salivarius M18 after colonizing the human oral mucosa produces the enzymes dextranase and urease that are able to counteract plaque formation and saliva acidity, respectively. Seventy-six subjects at high risk of dental caries were randomized and then either treated or not treated for 90 days with an oral formulation containing the oral probiotic salivarius M18 (Carioblis(®)). The results indicate that the use of salivarius M18 increases the chances of avoiding new dental caries development in children, and its application could be proposed as a new tool in the dentist's armory to be adopted in subjects considered at high risk on the basis of their Cariogram outcome.
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Affiliation(s)
| | | | | | - Paolo Risso
- Department of Health Science, University of Genoa, Genoa, Italy
| | - Carlo Fornaini
- Teleo Laboratory, Faculty of Dentistry, University of Nice, Nice, France
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Di Pierro F, Di Pasquale D, Di Cicco M. Oral use of Streptococcus salivarius K12 in children with secretory otitis media: preliminary results of a pilot, uncontrolled study. Int J Gen Med 2015; 8:303-8. [PMID: 26396541 PMCID: PMC4576902 DOI: 10.2147/ijgm.s92488] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Secretory otitis media (SOM) remains a common disease among children. Although its cause is not yet perfectly established, the pathology, often a sequel of acute otitis media (AOM), is mainly characterized by persistent fluid in the middle ear cavity. Twenty-two children with a diagnosis of SOM were treated daily for 90 days with an oral formulation containing the oral probiotic Streptococcus salivarius K12 (Bactoblis®). After treatment, the children were evaluated for AOM episodes and subjected to tone audiometry, tympanometry, endonasal endoscopy, otoscopy, and tonsillar examination. Subject compliance and probiotic tolerability and side effects have also been evaluated. Our results indicate a good safety profile, a substantial reduction of AOM episodes, and a positive outcome from the treatment for all of the clinical outcomes tested. We conclude that strain K12 may have a role in reducing the occurrence and/or severity of SOM in children. From our perspective, this study constitutes a starting point toward the organization of a more extensive placebo-controlled study aimed at critically appraising our preliminary observations.
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Affiliation(s)
| | - Daniele Di Pasquale
- ORL Department, Ospedale Maggiore Policlinico Ca' Grande IRCCS, Milan, Italy
| | - Maurizio Di Cicco
- ORL Department, Ospedale Maggiore Policlinico Ca' Grande IRCCS, Milan, Italy
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46
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Streptococcus salivarius K12 Limits Group B Streptococcus Vaginal Colonization. Infect Immun 2015; 83:3438-44. [PMID: 26077762 DOI: 10.1128/iai.00409-15] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 06/10/2015] [Indexed: 01/11/2023] Open
Abstract
Streptococcus agalactiae (group B streptococcus [GBS]) colonizes the rectovaginal tract in 20% to 30% of women and during pregnancy can be transmitted to the newborn, causing severe invasive disease. Current routine screening and antibiotic prophylaxis have fallen short of complete prevention of GBS transmission, and GBS remains a leading cause of neonatal infection. We have investigated the ability of Streptococcus salivarius, a predominant member of the native human oral microbiota, to control GBS colonization. Comparison of the antibacterial activities of multiple S. salivarius strains by use of a deferred-antagonism test showed that S. salivarius strain K12 exhibited the broadest spectrum of activity against GBS. K12 effectively inhibited all GBS strains tested, including disease-implicated isolates from newborns and colonizing isolates from the vaginal tract of pregnant women. Inhibition was dependent on the presence of megaplasmid pSsal-K12, which encodes the bacteriocins salivaricin A and salivaricin B; however, in coculture experiments, GBS growth was impeded by K12 independently of the megaplasmid. We also demonstrated that K12 adheres to and invades human vaginal epithelial cells at levels comparable to GBS. Inhibitory activity of K12 was examined in vivo using a mouse model of GBS vaginal colonization. Mice colonized with GBS were treated vaginally with K12. K12 administration significantly reduced GBS vaginal colonization in comparison to nontreated controls, and this effect was partially dependent on the K12 megaplasmid. Our results suggest that K12 may have potential as a preventative therapy to control GBS vaginal colonization and thereby prevent its transmission to the neonate during pregnancy.
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Affiliation(s)
- Diego Mora
- Department of Food Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - Stefania Arioli
- Department of Food Environmental and Nutritional Sciences, University of Milan, Milan, Italy
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Delorme C, Abraham AL, Renault P, Guédon E. Genomics of Streptococcus salivarius, a major human commensal. INFECTION GENETICS AND EVOLUTION 2014; 33:381-92. [PMID: 25311532 DOI: 10.1016/j.meegid.2014.10.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/30/2014] [Accepted: 10/02/2014] [Indexed: 10/24/2022]
Abstract
The salivarius group of streptococci is of particular importance for humans. This group consists of three genetically similar species, Streptococcus salivarius, Streptococcus vestibularis and Streptococcus thermophilus. S. salivarius and S. vestibularis are commensal organisms that may occasionally cause opportunistic infections in humans, whereas S. thermophilus is a food bacterium widely used in dairy production. We developed Multilocus sequence typing (MLST) and comparative genomic analysis to confirm the clear separation of these three species. These analyses also identified a subgroup of four strains, with a core genome diverging by about 10%, in terms of its nucleotide sequence, from that of S. salivarius sensu stricto. S. thermophilus species displays a low level of nucleotide variability, due to its recent emergence with the development of agriculture. By contrast, nucleotide variability is high in the other two species of the salivarius group, reflecting their long-standing association with humans. The species of the salivarius group have genome sizes ranging from the smallest (∼ 1.7 Mb for S. thermophilus) to the largest (∼ 2.3 Mb for S. salivarius) among streptococci, reflecting genome reduction linked to a narrow, nutritionally rich environment for S. thermophilus, and natural, more competitive niches for the other two species. Analyses of genomic content have indicated that the core genes of S. salivarius account for about two thirds of the genome, indicating considerable variability of gene content and differences in potential adaptive features. Furthermore, we showed that the genome of this species is exceptionally rich in genes encoding surface factors, glycosyltransferases and response regulators. Evidence of widespread genetic exchanges was obtained, probably involving a natural competence system and the presence of diverse mobile elements. However, although the S. salivarius strains studied were isolated from several human body-related sites (all levels of the digestive tract, skin, breast milk, and body fluids) and included clinical strains, no genetic or genomic niche-specific features could be identified to discriminate specific group.
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Affiliation(s)
- Christine Delorme
- INRA, UMR 1319 Micalis, Domaine de Vilvert, F-78352 Jouy-en-Josas, France; AgroParisTech, UMR MICALIS, Jouy-en-Josas, France
| | - Anne-Laure Abraham
- INRA, UMR 1319 Micalis, Domaine de Vilvert, F-78352 Jouy-en-Josas, France; AgroParisTech, UMR MICALIS, Jouy-en-Josas, France
| | - Pierre Renault
- INRA, UMR 1319 Micalis, Domaine de Vilvert, F-78352 Jouy-en-Josas, France; AgroParisTech, UMR MICALIS, Jouy-en-Josas, France
| | - Eric Guédon
- INRA, UMR 1319 Micalis, Domaine de Vilvert, F-78352 Jouy-en-Josas, France; AgroParisTech, UMR MICALIS, Jouy-en-Josas, France.
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Di Pierro F, Colombo M, Zanvit A, Risso P, Rottoli AS. Use of Streptococcus salivarius K12 in the prevention of streptococcal and viral pharyngotonsillitis in children. DRUG HEALTHCARE AND PATIENT SAFETY 2014; 6:15-20. [PMID: 24600248 PMCID: PMC3928062 DOI: 10.2147/dhps.s59665] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background Streptococcus salivarius K12 is an oral probiotic strain releasing two lantibiotics (salivaricin A2 and salivaricin B) that antagonize the growth of S. pyogenes, the most important bacterial cause of pharyngeal infections in humans also affected by episodes of acute otitis media. S. salivarius K12 successfully colonizes the oral cavity, and is endowed with an excellent safety profile. We tested its preventive role in reducing the incidence of both streptococcal and viral pharyngitis and/or tonsillitis in children. Materials and methods We enrolled 61 children with a diagnosis of recurrent oral streptococcal disorders. Thirty-one of them were enrolled to be treated daily for 90 days with a slow-release tablet for oral use, containing no less than 1 billion colony-forming units/tablet of S. salivarius K12 (Bactoblis®), and the remaining 30 served as the untreated control group. During treatment, they were all examined for streptococcal infection. Twenty children (ten per group) were also assessed in terms of viral infection. Secondary end points in both groups were the number of days under antibiotic and antipyretic therapy and the number of days off school (children) and off work (parents). Results The 30 children who completed the 90-day trial with Bactoblis® showed a significant reduction in their episodes of streptococcal pharyngeal infection (>90%), as calculated by comparing the infection rates of the previous year. No difference was observed in the control group. The treated group showed a significant decrease in the incidence (80%) of oral viral infections. Again, there was no difference in the control group. With regard to secondary end points, the number of days under antibiotic treatment of the treated and control groups were 30 and 900 respectively, days under antipyretic treatment 16 and 228, days of absence from school 16 and 228, and days of absence from work 16 and 228. The product was well tolerated by the subjects, with no side effects, and only one individual reported bad product palatability and dropped out. Conclusion Prophylactic administration of S. salivarius K12 to children with a history of recurrent oral streptococcal disease resulted in a considerable reduction of episodes of both streptococcal and viral infections and reduced the number of days under antibiotic and/or antipyretic therapy and days of absence from school or work.
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Affiliation(s)
| | - Maria Colombo
- Pediatric Department, University of Parma, Parma, Italy
| | | | - Paolo Risso
- Laboratory of Epidemiology and Social Psychiatry, Mario Negri Institute, Milan, Italy
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Hammami R, Fernandez B, Lacroix C, Fliss I. Anti-infective properties of bacteriocins: an update. Cell Mol Life Sci 2013; 70:2947-67. [PMID: 23109101 PMCID: PMC11113238 DOI: 10.1007/s00018-012-1202-3] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 09/05/2012] [Accepted: 10/18/2012] [Indexed: 02/01/2023]
Abstract
Bacteriocin production is a widespread phenomenon among bacteria. Bacteriocins hold great promise for the treatment of diseases caused by pathogenic bacteria and could be used in the future as alternatives to existing antibiotics. The anti-infective potential of bacteriocins for inhibiting pathogens has been shown in various food matrices including cheese, meat, and vegetables. However, their inhibition of pathogens in vivo remains unclear and needs more investigation, due mainly to difficulties associated with demonstrating their health benefits. Many bacteriocins produced by established or potential probiotic organisms have been evaluated as potential therapeutic agents and interesting findings have been documented in vitro as well as in a few in vivo studies. Some recent in vivo studies point to the efficacy of bacteriocin-based treatments of human and animal infections. While further investigation remains necessary before the possibilities for bacteriocins in clinical practice can be described more fully, this review provides an overview of their potential applications to human and veterinary health.
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Affiliation(s)
- Riadh Hammami
- STELA Dairy Research Centre, Nutraceuticals and Functional Foods Institute, Université Laval, Quebec, QC, Canada.
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