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Atkins H, Sabharwal B, Boger L, Stegman N, Kula A, Wolfe AJ, Banerjee S, Putonti C. Evidence of Lactobacillus strains shared between the female urinary and vaginal microbiota. Microb Genom 2024; 10:001267. [PMID: 38949867 PMCID: PMC11316553 DOI: 10.1099/mgen.0.001267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 06/14/2024] [Indexed: 07/02/2024] Open
Abstract
Lactobacillus species are common inhabitants of the 'healthy' female urinary and vaginal communities, often associated with a lack of symptoms in both anatomical sites. Given identification by prior studies of similar bacterial species in both communities, it has been hypothesized that the two microbiotas are in fact connected. Here, we carried out whole-genome sequencing of 49 Lactobacillus strains, including 16 paired urogenital samples from the same participant. These strains represent five different Lactobacillus species: L. crispatus, L. gasseri, L. iners, L. jensenii, and L. paragasseri. Average nucleotide identity (ANI), alignment, single-nucleotide polymorphism (SNP), and CRISPR comparisons between strains from the same participant were performed. We conducted simulations of genome assemblies and ANI comparisons and present a statistical method to distinguish between unrelated, related, and identical strains. We found that 50 % of the paired samples have identical strains, evidence that the urinary and vaginal communities are connected. Additionally, we found evidence of strains sharing a common ancestor. These results establish that microbial sharing between the urinary tract and vagina is not limited to uropathogens. Knowledge that these two anatomical sites can share lactobacilli in females can inform future clinical approaches.
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Affiliation(s)
- Haley Atkins
- Bioinformatics Program, Loyola University Chicago, Chicago, IL, USA
| | - Baani Sabharwal
- Department of Molecular Environmental Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Leah Boger
- Data Science Program, Loyola University Chicago, Chicago, IL, USA
| | - Natalie Stegman
- Bioinformatics Program, Loyola University Chicago, Chicago, IL, USA
| | - Alexander Kula
- Department of Biology, Loyola University Chicago, Chicago, IL, USA
| | - Alan J. Wolfe
- Department of Microbiology and Immunology, Loyola University Chicago, Maywood, IL, USA
| | - Swarnali Banerjee
- Data Science Program, Loyola University Chicago, Chicago, IL, USA
- Department of Mathematics and Statistics, Loyola University Chicago, Chicago, IL, USA
| | - Catherine Putonti
- Bioinformatics Program, Loyola University Chicago, Chicago, IL, USA
- Department of Biology, Loyola University Chicago, Chicago, IL, USA
- Department of Microbiology and Immunology, Loyola University Chicago, Maywood, IL, USA
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Ashique S, Faruk A, Ahmad FJ, Khan T, Mishra N. It Is All about Probiotics to Control Cervical Cancer. Probiotics Antimicrob Proteins 2024; 16:979-992. [PMID: 37880560 DOI: 10.1007/s12602-023-10183-2] [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: 10/16/2023] [Indexed: 10/27/2023]
Abstract
Cervical cancer (CC) is the fourth most common malignancy in female patients. "Human papillomavirus" (HPV) contamination is a leading cause of all forms of cervical cancer, accounting for an expected 570,000 reported incidents in 2018. Two HPV strains (16 and 18) are responsible for 70% of CC and pre-cancerous cervical abnormalities. CC is one of the foremost reasons for the malignancy death rate in India among women ranging from 30 to 69 years of age in India, responsible for 17% of all cancer deaths. Currently approved cervical cancer treatments are associated with adverse reactions that might harm the lives of women affected by this disease. Consequently, probiotics can play a vital role in the treatment of CC. It is reflected from various studies regarding the role of probiotics in the diagnosis, prevention or treatment of cancer. In this review article, we have discussed the rationale of probiotics for treatment of CC, the role of probiotics as effective adjuvants in anti-cancer therapy and the combined effect of the anti-cancer drug along with probiotics to minimize the side effects due to chemotherapy.
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Affiliation(s)
- Sumel Ashique
- Department of Pharmaceutics, School of Pharmacy, Pandaveswar, West Bengal, 713346, India
| | - Abdul Faruk
- Department of Pharmaceutical Sciences, Hemwati Nandan Bahuguna Garhwal University, Srinagar, Uttarakhand, India.
| | - Farhan Jalees Ahmad
- Department of Pharmaceutics, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, 110062, India
| | - Tasneem Khan
- Department of Pharmaceutics, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, 110062, India
| | - Neeraj Mishra
- Amity Institute of Pharmacy, Amity University, Gwalior, 474005, Madhya Pradesh, India
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Zare H, Izadi Amoli R, Rezapour M, Zaboli F, Kaboosi H. Characterization of Vaginal Lactobacilli with Potential Probiotic Properties Isolated from Healthy Women in Northern Iran. Indian J Microbiol 2024; 64:529-539. [PMID: 39011013 PMCID: PMC11246308 DOI: 10.1007/s12088-023-01186-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 12/28/2023] [Indexed: 07/17/2024] Open
Abstract
Vaginal lactobacilli protect against bacterial vaginosis and vaginal candidiasis. They may have probiotic properties and help maintain the balance and health of the vaginal ecosystem while the loss of these bacteria predisposes females to urinary and genital infections. The aim of this study was to investigate the probiotic potential of vaginal Lactobacillus among healthy females in northern Iran. The Lactobacillus strains were isolated from vaginal samples and were identified by sequencing of the 16S rRNA fragment. Functional properties such as tolerance to low pH, H2O2 production, adherence ability to Hela cells and antagonistic activity against Candida albicans was examined. A total of 38 vaginal lactobacilli strains from five species, including Lactobacillus crispatus (n = 13), Lactobacillus gasseri (n = 10), Lactobacillus acidophilus (n = 6), Lactobacillus jensenii (n = 5) and Lactobacillus johnsonii (n = 4), were identified. All of the species showed significant tolerance to low pH over 24 h (p < 0.001). The best adherence ability to Hela cells was seen in Lactobacillus gasseri strains. Nearly 17 of the strains had higher anti-candida activity compared to the other strains. According to the findings, four lactobacilli strains isolated in the vaginal samples of healthy Iranian women had the best probiotic potential.
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Affiliation(s)
- Hakimeh Zare
- Department of Microbiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Rabeeh Izadi Amoli
- Department of Microbiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Maysam Rezapour
- Department of Paramedicine, Amol School of Paramedical Sciences, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fatemeh Zaboli
- Department of Microbiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Hami Kaboosi
- Department of Microbiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
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Zare H, Izadi Amoli R, Zaboli F, Rezapour M, Kaboosi H. The phenotypic and genotypic antibiotic susceptibility of vaginal Lactobacillus with potential probiotic properties isolated from healthy women in northern Iran. IRANIAN JOURNAL OF MICROBIOLOGY 2024; 16:227-235. [PMID: 38854974 PMCID: PMC11162166 DOI: 10.18502/ijm.v16i2.15356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Background and Objectives This study assesses the antibiotic susceptibility of vaginal Lactobacillus strains and provides data for determining the prevalence of certain antibiotic resistance genes in the new strains of lactobacilli serving as probiotics and selected from healthy women in northern Iran. Materials and Methods One hundred premenopausal non-pregnant women in the reproductive age range of 22-50 years participated in this study. The potential probiotic vaginal lactobacilli used in the study included Lactobacillus crispatus (34.2%), Lactobacillus gasseri (26.3%), Lactobacillus johnsonii (10.5%), Lactobacillus acidophilus (15.7%) and Lactobacillus jensenii (13.1%). The phenotypic antibiotic susceptibility of the strains was determined by E test and DNA extraction and PCR were performed to examine the antibiotic resistance genes. Results 38 potential probiotic vaginal lactobacilli were isolated. All the strains of lactobacilli were resistant to metronidazole and trimethoprim/sulfamethoxazole and all of the strains were susceptible to ampicillin and chloramphenicol antibiotics. The results showed that ermB, ermC, and ermA genes were observed in the strains of Lactobacillus acidophilus. Metronidazole resistance (nim) gene was also found in one strain of Lactobacillus crispatus and Lactobacillus johnsonii. The aminoglycoside resistance (aac6'-aph2″) gene was observed in 8% of the strains. Also, tetM, tetK and tetW genes were found in more than 80% of the Lactobacillus strains. Conclusion The antimicrobial susceptibility of vaginal lactobacilli is an important criterion for establishing whether or not the organism is a probiotic. A high level of resistance to clinical antibiotics, such as metronidazole and aminoglycosides, was demonstrated. Antibiotic resistant genes also appeared widely in vaginal lactobacilli.
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Affiliation(s)
- Hakimeh Zare
- Department of Microbiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Rabeeh Izadi Amoli
- Department of Microbiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Fatemeh Zaboli
- Department of Microbiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Maysam Rezapour
- Department of Paramedicine, Amol School of Paramedical Sciences, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hami Kaboosi
- Department of Microbiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
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Yang P, Lu T, Liang X, Huang T, Wu L, He Z, Xiao X, Fan S. The influence of placenta microbiota of normal term pregnant women on immune regulation during pregnancy. BMC Pregnancy Childbirth 2024; 24:171. [PMID: 38424487 PMCID: PMC10905846 DOI: 10.1186/s12884-024-06353-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 02/16/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND The concerted regulation of placenta microbiota and the immune responses secures the occurrence and development of pregnancy, while few studies reported this correlation. This study aimed to explore the relationship between the placenta microbiota and immune regulation during pregnancy. METHODS Twenty-six healthy pregnant women scheduled for elective cesarean section in the First Affiliated Hospital of Jinan University who met the inclusion criteria were recruited. Placenta and peripheral venous blood samples were collected. Microbiota in placental tissue was detected using high-throughput sequencing. Flow cytometry was used to detect immune cells in placental tissue and peripheral venous blood. ELISA and Luminex liquid chip technology were used to detect the content of cytokines in placental tissue and peripheral venous blood, respectively. RESULTS The placental microbiota has stimulating effects on the local immunity of the placenta and mainly stimulates the placental balance ratio CD56 + CD16 + /CD56 + CD16 and the placental macrophages, that is, it plays the role of immune protection and supporting nutrition. The stimulating effect of placental microbiota on maternal systemic immunity mainly induces peripheral Treg cells and B lymphocytes. CONCLUSION The placental microbiota may be an important factor mediating local immune regulation in the placenta, and placental microbiota participates in the regulatory function of the maternal immune system.
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Affiliation(s)
- Ping Yang
- Department of Obstetrics and Gynaecology, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, China
| | - Tong Lu
- Department of Otolaryngology, Shenzhen Long Hua District Central Hospital, Shenzhen, China
| | | | - Ting Huang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Lulu Wu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Zonglin He
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Xiaomin Xiao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China.
| | - Shangrong Fan
- Department of Obstetrics and Gynaecology, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, China.
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Frąszczak K, Barczyński B, Siwiec R, Kondracka A, Malm A, Kotarski J, Witt E, Korona-Głowniak I. The analysis of Lactobacillus spp. distribution in the vaginal microbiota of Polish women with abnormal Pap smear result. Front Microbiol 2023; 14:1257587. [PMID: 38029074 PMCID: PMC10666048 DOI: 10.3389/fmicb.2023.1257587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction A healthy vaginal microbiota is represented mainly by Lactobacillus spp. and plays a vital role in maintaining the functional balance in the vaginal environment. Scientists have drawn attention to possible correlations between the vaginal microbiome and gynecological neoplasms. Several recent studies have shown a potential link between the vaginal microbiome and the risk of developing cervical cancer from human papillomavirus (HPV) infection. This study aimed to compare the prevalence and abundance of various lactic acid bacteria species (LABs) in vaginal swabs from healthy controls and patients with abnormal Pap smear results. Methods The study included 100 women (79 patients with abnormal cervical Pap smear results and 21 controls) from whom vaginal swabs were collected. Real-time quantitative PCR was used to determine seven lactic acid bacteria (LAB) species and their quantities. Results Most patients were colonized by two Lactobacillus species, primarily Lactobacillus gasseri (93%) and L. crispatus (83%). Patient age and place of residence were associated with the diversity of LAB in the vaginal microbiota. The abundance of L. delbrueckii in the vaginal microbiota increased, whereas the abundance of L. gasseri abundance decreased, with patient age. Lactobacillus acidophilus and Limosilactobacillus fermentum were significantly more often detected in patients living in rural versus urban areas. Statistical analysis did not show any significant differences in LAB between groups of patients with various changes on smear tests. Discussion The degree of dysplastic changes in the endothelium or the presence of a group of atypical cervical stratified epithelial cells was not associated with significant changes in the studied vaginal bacteria.
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Affiliation(s)
- Karolina Frąszczak
- I Department of Oncological Gynaecology and Gynaecology, Medical University in Lublin, Lublin, Poland
| | - Bartłomiej Barczyński
- I Department of Oncological Gynaecology and Gynaecology, Medical University in Lublin, Lublin, Poland
| | - Radosław Siwiec
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University in Lublin, Lublin, Poland
| | - Adrianna Kondracka
- Department of Obstetrics and Pathology of Pregnancy, Medical University in Lublin, Lublin, Poland
| | - Anna Malm
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University in Lublin, Lublin, Poland
| | - Jan Kotarski
- Independent Laboratory of Cancer Diagnostics and Immunology, Medical University in Lublin, Lublin, Poland
| | - Elzbieta Witt
- Frauenklinik, Marienhospital Witten, Witten, Germany
| | - Izabela Korona-Głowniak
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University in Lublin, Lublin, Poland
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Ene A, Banerjee S, Wolfe AJ, Putonti C. Exploring the genotypic and phenotypic differences distinguishing Lactobacillus jensenii and Lactobacillus mulieris. mSphere 2023; 8:e0056222. [PMID: 37366621 PMCID: PMC10449518 DOI: 10.1128/msphere.00562-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 05/10/2023] [Indexed: 06/28/2023] Open
Abstract
Lactobacillus crispatus, Lactobacillus gasseri, Lactobacillus iners, and Lactobacillus jensenii are dominant species of the urogenital microbiota. Prior studies suggest that these Lactobacillus species play a significant role in the urobiome of healthy females. In our prior genomic analysis of all publicly available L. jensenii and Lactobacillus mulieris genomes at the time (n = 43), we identified genes unique to these two closely related species. This motivated our further exploration here into their genotypic differences as well as into their phenotypic differences. First, we expanded genome sequence representatives of both species to 61 strains, including publicly available strains and nine new strains sequenced here. Genomic analyses conducted include phylogenetics of the core genome as well as biosynthetic gene cluster analysis and metabolic pathway analyses. Urinary strains of both species were assayed for their ability to utilize four simple carbohydrates. We found that L. jensenii strains can efficiently catabolize maltose, trehalose, and glucose, but not ribose, and L. mulieris strains can utilize maltose and glucose, but not trehalose and ribose. Metabolic pathway analysis clearly shows the lack of treB within L. mulieris strains, indicative of its inability to catabolize external sources of trehalose. While genotypic and phenotypic observations provide insight into the differences between these two species, we did not find any association with urinary symptom status. Through this genomic and phenotypic investigation, we identify markers that can be leveraged to clearly distinguish these two species in investigations of the female urogenital microbiota. IMPORTANCE We have expanded upon our prior genomic analysis of L. jensenii and L. mulieris strains, including nine new genome sequences. Our bioinformatic analysis finds that L. jensenii and L. mulieris cannot be distinguished by short-read 16S rRNA gene sequencing alone. Thus, to discriminate between these two species, future studies of the female urogenital microbiome should employ metagenomic sequencing and/or sequence species-specific genes, such as those identified here. Our bioinformatic examination also confirmed our prior observations of differences between the two species related to genes associated with carbohydrate utilization, which we tested here. We found that the transport and utilization of trehalose are key distinguishing traits of L. jensenii, which is further supported by our metabolic pathway analysis. In contrast with other urinary Lactobacillus species, we did not find strong evidence for either species, nor particular genotypes, to be associated with lower urinary tract symptoms (or the lack thereof).
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Affiliation(s)
- Adriana Ene
- Bioinformatics Program, Loyola University Chicago, Chicago, Illinois, USA
| | - Swarnali Banerjee
- Department of Mathematics and Statistics, Loyola University Chicago, Chicago, Illinois, USA
| | - Alan J. Wolfe
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA
| | - Catherine Putonti
- Bioinformatics Program, Loyola University Chicago, Chicago, Illinois, USA
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA
- Department of Biology, Loyola University Chicago, Chicago, Illinois, USA
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Friberg M, Woeller K, Iberi V, Mancheno PP, Riedeman J, Bohman L, Davis CC. Development of in vitro methods to model the impact of vaginal lactobacilli on Staphylococcus aureus biofilm formation on menstrual cups as well as validation of recommended cleaning directions. FRONTIERS IN REPRODUCTIVE HEALTH 2023; 5:1162746. [PMID: 37671283 PMCID: PMC10475951 DOI: 10.3389/frph.2023.1162746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/25/2023] [Indexed: 09/07/2023] Open
Abstract
Introduction Menstrual cups (MC) are a reusable feminine hygiene product. A recent publication suggested that Staphylococcus aureus (S. aureus) biofilms can form on MCs which may lead to increased risk of menstrual Toxic Shock Syndrome (mTSS). Additionally, there is concern that buildup of residual menses may contribute to microbial growth and biofilm formation further increasing mTSS risk. Quantitative and qualitative analysis of in vitro tests were utilized to determine if S. aureus biofilm could form on MC in the presence of the keystone species Lactobacillus after 12 h of incubation. The methodology was based on a modification of an anaerobic in vitro method that harnesses the keystone species hypothesis by including a representative of vaginal lactic acid bacteria. Methods MCs were incubated anaerobically for 12 h in Vaginal Defined Media (VDM) with the two morphologically distinct bacteria, Lactobacillus gasseri (L. gasseri) and S. aureus. Colony Forming Units (CFU) for each organism from the VDM broth and sonicated MC were estimated. In addition, a separate experiment was conducted where S. aureus was grown for 12 h in the absence of L. gasseri. Qualitative analysis for biofilm formation utilized micro-CT (µ-CT) and cryogenic scanning electron microscopy (Cryo-SEM). Results Samples collected from the media control had expected growth of both organisms after 12 h of incubation. Samples collected from VDM broth were similar to media control at the end of the 12-h study. Total S. aureus cell density on MC following sonication/rinsing was minimal. Results when using a monoculture of S. aureus demonstrated that there was a significant growth of the organism in the media control and broth as well as the sonicated cups indicating that the presence of L. gasseri was important for controlling growth and adherence of S. aureus. Few rod-shaped bacteria (L. gasseri) and cocci (S. aureus) could be identified on the MCs when grown in a dual species culture inoculum and no biofilm was noted via µ-CT and cryo-SEM. Additionally, efforts to model and understand the validity of the current labeled recommendations for MC cleaning in-between uses are supported. Discussion The data support continued safe use of the Tampax® cup when used and maintained as recommended.
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Affiliation(s)
- Maria Friberg
- Baby, Feminine and Family Care Microbiology, The Procter & Gamble Company, Mason, OH, United States
| | - Kara Woeller
- Baby, Feminine and Family Care, Global Product Stewardship, The Procter & Gamble Company, Cincinnati, OH, United States
| | - Vighter Iberi
- Corporate Functions Analytical, The Procter & Gamble Company, Mason, OH, United States
| | | | - James Riedeman
- Baby, Family and Feminine Care Analytical Chemistry, The Procter & Gamble Company, Cincinnati, OH, United States
| | - Lisa Bohman
- Data Modeling and Sciences, The Procter & Gamble Company, Mason, OH, United States
| | - Catherine C. Davis
- Department of Medical Microbiology and Immunology, School of Medicine, Creighton University, Omaha, NE, United States
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Bnfaga AA, Lee KW, Than LTL, Amin-Nordin S. Antimicrobial and immunoregulatory effects of Lactobacillus delbrueckii 45E against genitourinary pathogens. J Biomed Sci 2023; 30:19. [PMID: 36959635 PMCID: PMC10037868 DOI: 10.1186/s12929-023-00913-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 03/14/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Lactobacilli are essential microbiota that maintain a healthy, balanced vaginal environment. Vaginitis is a common infection in women during their reproductive years. Many factors are associated with vaginitis; one of them is the imbalance of microbiota in the vaginal environment. This study aimed to evaluate the antimicrobial properties of Lactobacillus delbrueckii 45E (Ld45E) against several species of bacteria, namely, Group B Streptococcus (GBS), Escherichia coli, Klebsiella spp., and Candida parapsilosis, as well as to determine the concentration of interleukin-17 (IL-17) in the presence of Ld45E. METHODS The probiotic characteristics of Ld45E were evaluated by examining its morphology, pH tolerance, adhesive ability onto HeLa cells, hemolytic activity, antibiotic susceptibility, and autoaggregation ability. Then, the antimicrobial activity of Ld45E was determined using Ld45E culture, cell-free supernatant, and crude bacteriocin solution. Co-aggregation and competition ability assays against various pathogens were conducted. The immunoregulatory effects of Ld45E were analyzed by measuring the proinflammatory cytokine IL-17. A p-value less than 0.05 was considered statistical significance. RESULTS Ld45E is 3-5 mm in diameter and round with a flat-shaped colony. pH 4 and 4.5 were the most favorable range for Ld45E growth within 12 h of incubation. Ld45E showed a strong adhesion ability onto HeLa cells (86%) and negative hemolytic activities. Ld45E was also sensitive to ceftriaxone, cefuroxime, ciprofloxacin, and doxycycline. We found that it had a good autoaggregation ability of 80%. Regarding antagonistic properties, Ld45E culture showed strong antimicrobial activity against GBS, E. coli, and Klebsiella spp. but only a moderate effect on C. parapsilosis. Cell-free supernatant of Ld45E exerted the most potent inhibitory effects at 40 °C against all genital pathogens, whereas bacteriocin showed a robust inhibition at 37 °C and 40 °C. The highest co-aggregation affinity was observed with GBS (81%) and E. coli (40%). Competition ability against the adhesion of GBS (80%), E. coli (76%), Klebsiella (72%), and C. parapsilosis (58%) was found. Ld45E was able to reduce the induction of the proinflammatory protein IL-17. CONCLUSIONS Ld45E possessed antimicrobial and immunoregulatory properties, with better cell-on-cell activity than supernatant activity. Thus, Ld45E is a potential probiotic candidate for adjunct therapy to address vaginal infections.
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Affiliation(s)
- Ameda Abdullah Bnfaga
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
- Department of Para-Clinic, Faculty of Medicine, Aden University, Aden, Yemen
| | - Kai Wei Lee
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Leslie Thian Lung Than
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Syafinaz Amin-Nordin
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
- Hospital Sultan Abdul Aziz Shah, Universiti Putra Malaysia, Persiaran MARDI-UPM, 43400, Serdang, Malaysia.
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Li Y, Zhu W, Jiang Y, Lessing DJ, Chu W. Synthetic bacterial consortia transplantation for the treatment of Gardnerella vaginalis-induced bacterial vaginosis in mice. MICROBIOME 2023; 11:54. [PMID: 36941732 PMCID: PMC10026434 DOI: 10.1186/s40168-023-01497-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Bacterial vaginosis (BV) is a disease caused by vaginal microbiota dysbiosis. Here, we propose the use of synthetic bacterial consortia transplantation (SBCT) for the treatment of Gardnerella vaginalis-induced BV mice. The results showed that SBCT significantly reduced vaginal tissue damage and restored the vaginal microbiota, decreased the secretion of pro-inflammatory cytokines (IL-1β and IL-8), and suppressed NF-κB activation. IL-17, iNOS, and COX-2 expression in vaginal tissue were also down-regulated. However, IL-10 and Foxp3 showed up-regulated expression in mice. Compared with vaginal microbiota transplantation (VMT), results indicated that VMT was more effective than SBCT in suppressing G. vaginalis-induced inflammation. The obtained results suggest that synthetic bacterial consortia might be used as a potential biotherapeutic agent for the treatment of G. vaginalis-induced bacterial vaginosis. Video Abstract.
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Affiliation(s)
- Yunxia Li
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Wei Zhu
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Yan Jiang
- Animal, Plant and Food Inspection Center of Nanjing Customs, Nanjing, 210019, China
| | - Duncan James Lessing
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Weihua Chu
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China.
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Silva JA, Marchesi A, Aristimuño Ficosecco MC, Nader‐Macías MEF. Functional and Safety Characterization of Beneficial Vaginal Lactic Acid Bacteria (
BVLAB
) for the Design of Vaginal Hygiene Products. J Appl Microbiol 2022; 133:3041-3058. [DOI: 10.1111/jam.15752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/23/2022] [Accepted: 07/12/2022] [Indexed: 12/01/2022]
Affiliation(s)
- Jessica Alejandra Silva
- CERELA‐CONICET (Centro de Referencia para Lactobacilos‐ Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina). Chacabuco 145. 4000. San Miguel de Tucumán. Argentina
| | - Antonella Marchesi
- CERELA‐CONICET (Centro de Referencia para Lactobacilos‐ Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina). Chacabuco 145. 4000. San Miguel de Tucumán. Argentina
| | - María Cecilia Aristimuño Ficosecco
- CERELA‐CONICET (Centro de Referencia para Lactobacilos‐ Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina). Chacabuco 145. 4000. San Miguel de Tucumán. Argentina
| | - María Elena Fátima Nader‐Macías
- CERELA‐CONICET (Centro de Referencia para Lactobacilos‐ Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina). Chacabuco 145. 4000. San Miguel de Tucumán. Argentina
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12
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Johnson JA, Delaney LF, Ojha V, Rudraraju M, Hintze KR, Siddiqui NY, Sysoeva TA. Commensal Urinary Lactobacilli Inhibit Major Uropathogens In Vitro With Heterogeneity at Species and Strain Level. Front Cell Infect Microbiol 2022; 12:870603. [PMID: 35811675 PMCID: PMC9260849 DOI: 10.3389/fcimb.2022.870603] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/17/2022] [Indexed: 11/21/2022] Open
Abstract
The human urinary microbiome is thought to affect the development and progression of urinary tract infections (UTI), particularly recurrent UTIs in aging populations of women. To understand the possible interactions of urinary pathogens with commensal bacteria inhabiting the aging bladder, we conducted an initial functional assessment of a representative set of urinary lactobacilli that dominate this niche in postmenopausal women. We created a repository of urinary bladder bacteria isolated via Enhanced Quantitative Urinary Culture (EQUC) from healthy postmenopausal women, as well as those with a culture-proven recurrent UTI (rUTI) diagnosis. This repository contains lactobacilli strains from eight different species. As many other lactobacilli are known to inhibit human pathogens, we hypothesized that some urinary lactobacilli will have similar abilities to inhibit the growth of typical uropathogens and thus, provide a link between the urinary microbiome and the predisposition to the rUTI. Therefore, we screened the urinary lactobacilli in our repository for their ability to inhibit model uropathogens in vitro. We observed that many urinary isolates strongly inhibit model strains of gram-negative Escherichia coli and Klebsiella pneumoniae but demonstrate less inhibition of gram-positive Enterococcus faecalis. The observed inhibition affected model strains of uropathogens as well as clinical and multidrug-resistant isolates of those species. Our preliminary analysis of inhibition modes suggests a combination of pH-dependent and cell-dependent inhibition. Overall, inhibition strongly varies among species and strains of urinary lactobacilli. While the strength of the inhibition is not predictive of health outcomes in this limited repository, there is a high level of species and strain diversity that warrants future detailed investigations.
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Affiliation(s)
- James A. Johnson
- Department of Biology, University of Alabama in Huntsville, Huntsville, AL, United States
| | - Lydia F. Delaney
- Department of Biology, University of Alabama in Huntsville, Huntsville, AL, United States
| | - Vaishali Ojha
- Department of Biology, University of Alabama in Huntsville, Huntsville, AL, United States
| | - Medha Rudraraju
- Department of Biology, University of Alabama in Huntsville, Huntsville, AL, United States
| | - Kaylie R. Hintze
- Department of Biology, University of Alabama in Huntsville, Huntsville, AL, United States
| | - Nazema Y. Siddiqui
- Division of Urogynecology and Reconstructive Pelvic Surgery, Department of Obstetrics and Gynecology, Duke University, Durham, NC, United States
| | - Tatyana A. Sysoeva
- Department of Biology, University of Alabama in Huntsville, Huntsville, AL, United States
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13
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Li Y, Jiang Y, Lessing DJ, Chu W. Exploring of probiotic potential vaginal Lactobacillus isolates from healthy women against Gardnerella vaginalis and Caenorhabditis elegans model testing. J Appl Microbiol 2022; 133:1392-1401. [PMID: 35633296 DOI: 10.1111/jam.15643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 11/30/2022]
Abstract
AIM Lactobacillus species are the dominant microorganisms in the vaginal microbiota of healthy women and play an important role in the defense against pathogens. This study aimed to evaluate probiotic potential of Lactiplantibacillus plantarum strain P1 isolated from healthy woman's vaginal discharge for its further utilization as a promising candidate strain in the treatment of bacterial vaginosis caused by Gardnerella vaginalis. METHODS AND RESULTS Ten lactobacilli strains from a woman's vaginal discharge were evaluated for their probiotic potential, including growth capacity at different pH levels (pH3.5~4.5), acid production, hydrogen peroxide production capacity, antibacterial activity, susceptibility to antibiotics. Moreover In vitro safety assay hemolytic activity and mutagenicity were investigated for safety assessment. In vivo Caenorhabditis elegans infection model was used to investigate the anti-infection effect of selected isolates. We found that lactobacilli strain P1 showed strong growth ability in low acid environment, produced acid, hydrogen peroxide, had the strongest antibacterial activity against G. vaginalis and was highly susceptible to the tested antibiotics. When assayed for the safety, strain P1 showed no hemolytic activity and had no effect of mutagenicity. Moreover, P1 significantly increased the lifespan of C. elegans against G. vaginalis infection. Combined with the results of 16S rRNA gene sequencing, morphological and physiological characteristic, the strain was identified as Lactiplantibacillus plantarum. CONCLUSION Lactiplantibacillus plantarum strain P1 proves to be a promising candidate strain in the treatment of bacterial vaginosis caused by G. vaginalis. SIGNIFICANCE AND IMPACT OF THE STUDY Conventional antibiotic therapy for bacterial vaginosis has led to the accelerated process of bacterial drug resistance. Probiotics are potentially an alternative method for bacterial vaginosis therapy. This finding provides bacterial resources for keeping pathogens away from the vagina. We believe L. plantarum P1 may be used as vaginal probiotics and be useful to prevent or treat bacterial vaginitis.
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Affiliation(s)
- Yunxia Li
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Yan Jiang
- Animal, Plant and Food Inspection Center of Nanjing Customs, Nanjing 210019, China
| | - Duncan James Lessing
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Weihua Chu
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
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14
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Pacha-Herrera D, Erazo-Garcia MP, Cueva DF, Orellana M, Borja-Serrano P, Arboleda C, Tejera E, Machado A. Clustering Analysis of the Multi-Microbial Consortium by Lactobacillus Species Against Vaginal Dysbiosis Among Ecuadorian Women. Front Cell Infect Microbiol 2022; 12:863208. [PMID: 35646732 PMCID: PMC9131875 DOI: 10.3389/fcimb.2022.863208] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/18/2022] [Indexed: 12/12/2022] Open
Abstract
The vaginal microbiota plays vital protection in women. This probiotic activity is caused not only by individual Lactobacillus species but also by its multi-microbial interaction. However, the probiotic activity promoted by multi-microbial consortia is still unknown. The aim of this study was the individual and collective analysis on the prevalence of five vaginal lactobacilli (Lactobacillus iners, Lactobacillus crispatus, Lactobacillus gasseri, Lactobacillus jensenii, and Lactobacillus acidophilus) among healthy women and women with bacterial vaginosis (BV) or aerobic vaginitis (AV). PCR assays were realized on 436 vaginal samples from a previous study. Chi-square, univariable, and multivariable logistic regression analyses with the Benjamini–Hochberg adjustment evaluated associations between these lactobacilli and vaginal microbiota. Multi-microbial clustering model was also realized through Ward’s Minimum Variance Clustering Method with Euclidean squared distance for hierarchical clustering to determine the probiotic relationship between lactobacilli and vaginal dysbiosis. Concerning the individual effect, L. acidophilus, L. jensenii, and L. crispatus showed the highest normalized importance values against vaginal dysbiosis (100%, 79.3%, and 74.8%, respectively). However, only L. acidophilus and L. jensenii exhibited statistical values (p = 0.035 and p = 0.050, respectively). L. acidophilus showed a significant prevalence on healthy microbiota against both dysbioses (BV, p = 0.041; and AV, p = 0.045). L. jensenii only demonstrated significant protection against AV (p = 0.012). Finally, our results evidenced a strong multi-microbial consortium by L. iners, L. jensenii, L. gasseri, and L. acidophilus against AV (p = 0.020) and BV (p = 0.009), lacking protection in the absence of L. gasseri and L. acidophilus.
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Affiliation(s)
- David Pacha-Herrera
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Maria P. Erazo-Garcia
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Darío F. Cueva
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Miguel Orellana
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Pamela Borja-Serrano
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Camila Arboleda
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Eduardo Tejera
- Facultad de Ingeniería y Ciencias Agropecuarias, Grupo de Bioquimioinformática, Universidad de Las Américas, Quito, Ecuador
| | - António Machado
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
- *Correspondence: António Machado,
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15
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Argentini C, Fontana F, Alessandri G, Lugli GA, Mancabelli L, Ossiprandi MC, van Sinderen D, Ventura M, Milani C, Turroni F. Evaluation of Modulatory Activities of Lactobacillus crispatus Strains in the Context of the Vaginal Microbiota. Microbiol Spectr 2022; 10:e0273321. [PMID: 35266820 PMCID: PMC9045136 DOI: 10.1128/spectrum.02733-21] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/19/2022] [Indexed: 11/20/2022] Open
Abstract
It has been widely reported that members of the genus Lactobacillus dominate the vaginal microbiota, which is represented by the most prevalent species Lactobacillus crispatus, Lactobacillus jensenii, Lactobacillus gasseri, and Lactobacillus iners. L. crispatus is furthermore considered an important microbial biomarker due to its professed beneficial implications on vaginal health. In order to identify molecular mechanisms responsible for health-promoting activities that are believed to be elicited by L. crispatus, we performed in silico investigations of the intraspecies biodiversity of vaginal microbiomes followed by in vitro experiments involving various L. crispatus strains along with other vaginal Lactobacillus species mentioned above. Specifically, we assessed their antibacterial activities against a variety of pathogenic microorganisms that are associated with vaginal infections. Moreover, coculture experiments of L. crispatus strains showing the most antibacterial activity against different pathogens revealed distinct ecological fitness and competitive properties with regard to other microbial colonizers. Interestingly, we observed that even phylogenetically closely related L. crispatus strains possess unique features in terms of their antimicrobial activities and associated competitive abilities, which suggests that they exert marked competition and evolutionary pressure within their specific environmental niche. IMPORTANCE The human vaginal microbiota includes all microorganisms that colonize the vaginal tract. In this context, a vaginal microbiota dominated by Lactobacillus and specifically by Lactobacillus crispatus is considered a hallmark of health. The role of L. crispatus in maintaining host health is linked to its modulatory activity toward other members of the vaginal ecosystem and toward the host. In this study, in vitro experiments followed by genetic analyses of the mechanisms used by L. crispatus in colonizing the vaginal ecological niche, particularly in the production of different antimicrobial compounds, were evaluated, highlighting some intriguing novel aspects concerning the genetic variability of this species. Our results indicate that this species has adapted to its niche and may still undergo adaptation to enhance its competitiveness for niche colonization.
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Affiliation(s)
- Chiara Argentini
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Federico Fontana
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
- Microbiome Research Hub, University of Parma, Parma, Italy
| | - Giulia Alessandri
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Gabriele Andrea Lugli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
- Microbiome Research Hub, University of Parma, Parma, Italy
| | - Leonardo Mancabelli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Maria Cristina Ossiprandi
- Microbiome Research Hub, University of Parma, Parma, Italy
- Department of Veterinary Medical Science, University of Parma, Parma, Italy
| | - Douwe van Sinderen
- APC Microbiome Institute and School of Microbiology, Bioscience Institute, National University of Ireland, Cork, Ireland
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
- Microbiome Research Hub, University of Parma, Parma, Italy
| | - Christian Milani
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
- Microbiome Research Hub, University of Parma, Parma, Italy
| | - Francesca Turroni
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
- Microbiome Research Hub, University of Parma, Parma, Italy
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16
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Draft Genome Assemblies of 4 Lactobacillus jensenii and 3 Lactobacillus mulieris Strains from the Urinary Tract. Microbiol Resour Announc 2022; 11:e0003222. [PMID: 35389247 PMCID: PMC9119073 DOI: 10.1128/mra.00032-22] [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] [Indexed: 11/20/2022] Open
Abstract
Lactobacilli are dominant members of the healthy female bladder microbiota. Here, we report the draft genome sequences of 4 Lactobacillus jensenii and 3 Lactobacillus mulieris strains isolated from catheterized urine samples.
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17
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Phenyl-lactic acid is an active ingredientin bactericidal supernatants of Lactobacillus crispatus. J Bacteriol 2021; 203:e0036021. [PMID: 34280003 DOI: 10.1128/jb.00360-21] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Lactobacillus crispatus is a well-established probiotic, with antimicrobial activity against pathogens across several niches of the human body generally attributed to the production of bacteriostatic molecules, including hydrogen peroxide and lactic acid. Here, we show that the cell-free supernatants of clinical isolates of L. crispatus harbor robust bactericidal activity. We further identify phenyl-lactic acid as a bactericidal compound with properties and susceptibility range near-identical to that of the cell-free supernatant. As such, we hypothesize that phenyl-lactic acid is a key active ingredient in L. crispatus supernatant. IMPORTANCE Although Lactobacillus crispatus is an established commensal microbe frequently used in probiotics, its protective role in the bladder microbiome has not been clarified. We report here that some urinary isolates of L. crispatus exhibit bactericidal activity, primarily due to its ability to excrete phenyl-lactic acid into its environment. Both cell free supernatants of L. crispatus isolates and phenyl-lactic acid exhibit bactericidal activity against a wide range of pathogens, including several that are resistant to multiple antibiotics.
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18
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Kumherová M, Veselá K, Kosová M, Mašata J, Horáčková Š, Šmidrkal J. Novel Potential Probiotic Lactobacilli for Prevention and Treatment of Vulvovaginal Infections. Probiotics Antimicrob Proteins 2021; 13:163-172. [PMID: 32583131 DOI: 10.1007/s12602-020-09675-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Lactobacilli in the vaginal tract are essential to protect against microbial infections. We therefore focused on isolating vaginal lactobacilli from pregnant women and testing their functional properties. Lactobacilli were isolated from 50 vaginal swabs and the purified isolates were identified by MALDI-TOF MS. Functional properties (antimicrobial activity, organic acids and hydrogen peroxide production, antibiotic susceptibility, auto-aggregation, and hydrophobicity) of selected isolates were tested. Lactobacilli (41 strains) were identified in 58% of swabs with a predominance of Lactobacillus crispatus (48%) followed by L. jensenii (21%), L. rhamnosus (14%), L. fermentum (10%), and L. gasseri (7%). The highest antibacterial activity was determined for L. fermentum and L. rhamnosus. Strong anti-Candida activity was observed for strains L. crispatus, L. fermentum, and L. rhamnosus. Strain L. jensenii 58C possessed the highest production of hydrogen peroxide (6.32 ± 0.60 mg/l). The best lactic acid producer was strain L. rhamnosus 72A (11.6 ± 0.2 g/l). All strains were resistant to fluconazole and metronidazole. The highest auto-aggregation was observed for strain L. crispatus 51A (98.8 ± 0.1% after 24 h). Strain L. rhamnosus 68A showed the highest hydrophobicity (69.1 ± 1.4%). Strains L. fermentum and L. rhamnosus showed high antibacterial activity and hydrophobicity, and strains L. crispatus possessed high auto-aggregation and anti-Candida activity. Thus, these strains alone or in a mix could be used for the preparation of probiotic products for treatment and prevention of vulvovaginal infections of pregnant and non-pregnant women.
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Affiliation(s)
- Monika Kumherová
- Department of Dairy, Fat and Cosmetics, University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic.
| | - Kristina Veselá
- Department of Dairy, Fat and Cosmetics, University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic
| | - Michaela Kosová
- Department of Dairy, Fat and Cosmetics, University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic
| | - Jaromír Mašata
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General University Hospital, Apolinářská 18, 128 51, Prague 2, Czech Republic
| | - Šárka Horáčková
- Department of Dairy, Fat and Cosmetics, University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic
| | - Jan Šmidrkal
- Department of Dairy, Fat and Cosmetics, University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic
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19
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Gardnerella vaginalis and Neisseria gonorrhoeae Are Effectively Inhibited by Lactobacilli with Probiotic Properties Isolated from Brazilian Cupuaçu ( Theobroma grandiflorum) Fruit. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6626249. [PMID: 33997030 PMCID: PMC8102102 DOI: 10.1155/2021/6626249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/04/2021] [Accepted: 04/23/2021] [Indexed: 02/01/2023]
Abstract
In recent years, certain Lactobacillus sp. have emerged in health care as an alternative therapy for various diseases. Based on this, this study is aimed at evaluating in vitro the potential probiotics of five lactobacilli strains isolated from pulp of cupuaçu fruit fermentation against Gardnerella vaginalis and Neisseria gonorrhoeae. Our lactobacilli strains were classified as safe for use in humans, and they were tolerant to heat and pH. Our strains were biofilm producers, while hydrophobicity and autoaggregation varied from 13% to 86% and 13% to 25%, respectively. The coaggregation of lactobacilli used in this study with G. vaginalis and N. gonorrhoeae ranged from 15% to 36% and 32% to 52%, respectively. Antimicrobial activity was present in all tested Lactobacillus strains against both pathogens, and the growth of pathogens in coculture was reduced by the presence of our lactobacilli. Also, all tested lactobacilli reduced the pH of the culture, even in incubation with pathogens after 24 hours. The cell-free culture supernatants (CFCS) of all five lactobacilli demonstrated activity against the two pathogens with a halo presence and CFCS characterization assay together with gas chromatography revealed that lactic acid was the most abundant organic acid in the samples (50% to 62%). Our results demonstrated that the organic acid production profile is strain-specific. This study revealed that cupuaçu is a promising source of microorganisms with probiotic properties against genital pathogens. We demonstrated by in vitro tests that our Lactobacillus strains have probiotic properties. However, the absence of in vivo tests is a limitation of our work due to the need to evaluate the interaction of our lactobacilli with pathogens in the vaginal mucosa. We believe that these findings may be useful in developing a product containing our lactobacilli and their supernatants in order to support with vaginal health.
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20
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Scillato M, Spitale A, Mongelli G, Privitera GF, Mangano K, Cianci A, Stefani S, Santagati M. Antimicrobial properties of Lactobacillus cell-free supernatants against multidrug-resistant urogenital pathogens. Microbiologyopen 2021; 10:e1173. [PMID: 33970542 PMCID: PMC8483400 DOI: 10.1002/mbo3.1173] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/22/2021] [Accepted: 01/29/2021] [Indexed: 01/23/2023] Open
Abstract
The healthy vaginal microbiota is dominated by Lactobacillus spp., which provide an important critical line of defense against pathogens, as well as giving beneficial effects to the host. We characterized L. gasseri 1A‐TV, L. fermentum 18A‐TV, and L. crispatus 35A‐TV, from the vaginal microbiota of healthy premenopausal women, for their potential probiotic activities. The antimicrobial effects of the 3 strains and their combination against clinical urogenital bacteria were evaluated together with the activities of their metabolites produced by cell‐free supernatants (CFSs). Their beneficial properties in terms of ability to interfere with vaginal pathogens (co‐aggregation, adhesion to HeLa cells, biofilm formation) and antimicrobial activity mediated by CFSs were assessed against multidrug urogenital pathogens (S. agalactiae, E. coli, KPC‐producing K. pneumoniae, S. aureus, E. faecium VRE, E. faecalis, P. aeruginosa, P. mirabilis, P. vulgaris, C. albicans, C. glabrata). The Lactobacilli tested exhibited an extraordinary ability to interfere and co‐aggregate with urogenital pathogens, except for Candida spp., as well as to adhere to HeLa cells and to produce biofilm in the Lactobacillus combination. Lactobacillus CFSs and their combination revealed a strong bactericidal effect on the multidrug resistant indicator strains tested, except for E. faecium and E. faecalis. The antimicrobial activity was maintained after heat treatment but decreased after enzymatic treatment. All Lactobacilli showed lactic dehydrogenase activity and production of D‐ and L‐lactic acid isomers on Lactobacillus CFSs, while only 1A‐TV and 35A‐TV released hydrogen peroxide and carried helveticin J and acidocin A bacteriocins. These results suggest that they can be employed as a new vaginal probiotic formulation and bio‐therapeutic preparation against urogenital infections. Further, in vivo studies are needed to evaluate human health benefits in clinical situations.
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Affiliation(s)
- Marina Scillato
- Department of Biomedical and Biotechnological Sciences, Microbiology Section, University of Catania, Catania, Italy
| | - Ambra Spitale
- Department of Biomedical and Biotechnological Sciences, Microbiology Section, University of Catania, Catania, Italy
| | - Gino Mongelli
- Department of Biomedical and Biotechnological Sciences, Microbiology Section, University of Catania, Catania, Italy
| | - Grete Francesca Privitera
- Department of Biomedical and Biotechnological Sciences, Microbiology Section, University of Catania, Catania, Italy
| | - Katia Mangano
- Department of Biomedical and Biotechnological Sciences, Oncologic, Clinical, and General Pathology Section, University of Catania, Catania, Italy
| | - Antonio Cianci
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Stefania Stefani
- Department of Biomedical and Biotechnological Sciences, Microbiology Section, University of Catania, Catania, Italy
| | - Maria Santagati
- Department of Biomedical and Biotechnological Sciences, Microbiology Section, University of Catania, Catania, Italy
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21
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Qian Z, Zhu H, Zhao D, Yang P, Gao F, Lu C, Yin Y, Kan S, Chen D. Probiotic Lactobacillus sp. Strains Inhibit Growth, Adhesion, Biofilm Formation, and Gene Expression of Bacterial Vaginosis-Inducing Gardnerella vaginalis. Microorganisms 2021; 9:728. [PMID: 33807455 PMCID: PMC8065998 DOI: 10.3390/microorganisms9040728] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 02/07/2023] Open
Abstract
Gardnerella vaginalis contributes significantly to bacterial vaginosis, which causes an ecological imbalance in vaginal microbiota and presents with the depletion of Lactobacillus sp. Lactobacillus supplementation was reported to be an approach to treat bacterial vaginosis. We investigated the applicability of three Lactobacillus sp. strains (Lactobacillus delbrueckii DM8909, Lactiplantibacillus plantarum ATCC14917, and Lactiplantibacillus plantarum ZX27) based on their probiotic abilities in vitro. The three candidate Lactobacillus sp. strains for bacterial vaginosis therapy showed distinct properties in auto-aggregation ability, hydrophobicity, adhesion to cervical epithelial cells, and survivability in 0.01% hydrogen peroxide. Lpb. plantarum ZX27 showed a higher yield in producing short-chain fatty acids and lactic acid among the three candidate strains, and all three Lactobacillus sp. strains inhibited the growth and adhesion of G. vaginalis. Furthermore, we discovered that the culture supernatant of Lactobacillus sp. exhibited anti-biofilm activity against G. vaginalis. In particular, the Lpb. plantarum ZX27 supernatant treatment decreased the expression of genes related to virulence factors, adhesion, biofilm formation, metabolism, and antimicrobial resistance in biofilm-forming cells and suspended cells. Moreover, Lactobacillus sp. decreased the upregulated expression of interleukin-8 in HeLa cells induced by G. vaginalis or hydrogen peroxide. These results demonstrate the efficacy of Lactobacillus sp. application for treating bacterial vaginosis by limiting the growth, adhesion, biofilm formation, and virulence properties of G. vaginalis.
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Affiliation(s)
- Zhixiang Qian
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Hui Zhu
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
| | - Dan Zhao
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
| | - Ping Yang
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
| | - Fei Gao
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
| | - Chunyi Lu
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
| | - Yu Yin
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
| | - Shidong Kan
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
| | - Daijie Chen
- College of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China; (Z.Q.); (H.Z.); (D.Z.); (P.Y.); (F.G.); (C.L.); (Y.Y.); (S.K.)
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai 201203, China
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Comparative genome analyses of Lactobacillus crispatus isolated from different ecological niches reveal an environmental adaptation of this species to the human vaginal environment. Appl Environ Microbiol 2021; 87:AEM.02899-20. [PMID: 33579685 PMCID: PMC8091109 DOI: 10.1128/aem.02899-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Vaginal microbiota is defined as the community of bacteria residing in the human vaginal tract. Recent studies have demonstrated that the vaginal microbiota is dominated by members of the Lactobacillus genus, whose relative abundance and microbial taxa composition are dependent on the healthy status of this human body site. Particularly, among members of this genus, the high prevalence of Lactobacillus crispatus is commonly associated with a healthy vaginal environment. In the current study, we assessed the microbial composition of 94 healthy vaginal microbiome samples through shotgun metagenomics analyses. Based on our results we observed that L. crispatus was the most representative species and correlated negatively with bacteria involved in vaginal infections. Therefore, we isolated fifteen L. crispatus strains from different environments in which this species is abounding, ranging from vaginal swabs of healthy women to chicken fecal samples. The genomes of these strains were decoded and their genetic content was analyzed and correlated with their physiological features. An extensive comparative genomic analysis encompassing all publicly available genome sequences of L. crispatus and combined with those decoded in this study, revealed a genetic adaptation of strains to their ecological niche. In addition, in vitro growth experiments involving all isolated L. crispatus strains together with a synthetic vaginal microbiota reveal how this species is able to modulate the composition of the vaginal microbial consortia at strain level. Overall, our findings suggest that L. crispatus plays an important ecological role in reducing the complexity of the vaginal microbiota by depleting pathogenic bacteria.Importance The vaginal microbiota is defined as the community of bacteria residing in the human vaginal tract. Recent studies have demonstrated that the high prevalence of Lactobacillus crispatus species is commonly associated with a healthy vaginal environment. In the current study, we assessed the microbial composition of 94 public healthy vaginal samples through shotgun metagenomics analyses. Results showed that L. crispatus was the most representative species and correlated negatively with bacteria involved in vaginal infections. Moreover, we isolated and sequenced the genome of new L. crispatus strains from different environments and the comparative genomics analysis revealed a genetic adaptation of strains to their ecological niche. In addition, in-vitro growth experiments display the capability of this species to modulate the composition of the vaginal microbial consortia. Overall, our findings suggest an ecological role exploited by L. crispatus in reducing the complexity of the vaginal microbiota toward a depletion of pathogenic bacteria.
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Improvement of Bacterial Vaginosis by Oral Lactobacillus Supplement: A Randomized, Double-Blinded Trial. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11030902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bacterial vaginosis (BV) is the most common vaginal infection globally, with a high recurrent rate after antibiotic treatment. Probiotics consumption is known to improve BV with different efficacy among species or strains. After in vitro selection of Lactobacillus strains with growth inhibition and preventing adhesion to HeLa cervical epithelial cells, a randomized and double-blinded trial of two Lactobacillus formula, namely, VGA-1 and VGA-2, in BV patients with Nugent scores of 4–10 was conducted. Among 37 subjects who completed the trial, we observed significantly decreased Nugent scores in both VGA-1 (n = 18) and VGA-2 (n = 19) consumption groups. VGA-1 consumption significantly improved vaginal discharge odor/color and itching at both 2-week and 4-week-consumption, but those only observed after a 4-week-consumption in the VGA-2 group. We also observed a tendency to reduce recurrent rates among enrolled participants after VGA-1 or VGA-2 consumption. The improvement effect of VGA-1/VGA-2 was associated with the significant reduction of interleukin-6 expression after 4-week-consumption and the restoration of normal vaginal microflora by quantitative polymerase chain reaction analysis. In conclusion, VGA-1 or VGA-2 displayed beneficial effects in BV patients, but the VGA-1 formula showed a better efficacy, potentially used for BV intervention.
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Application of Ligilactobacillus salivarius CECT5713 to Achieve Term Pregnancies in Women with Repetitive Abortion or Infertility of Unknown Origin by Microbiological and Immunological Modulation of the Vaginal Ecosystem. Nutrients 2021; 13:nu13010162. [PMID: 33419054 PMCID: PMC7825435 DOI: 10.3390/nu13010162] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 01/01/2023] Open
Abstract
In this study, the cervicovaginal environment of women with reproductive failure (repetitive abortion, infertility of unknown origin) was assessed and compared to that of healthy fertile women. Subsequently, the ability of Ligilactobacillus salivarius CECT5713 to increase pregnancy rates in women with reproductive failure was evaluated. Vaginal pH and Nugent score were higher in women with reproductive failure than in fertile women. The opposite was observed regarding the immune factors TGF-β 1, TFG-β 2, and VEFG. Lactobacilli were detected at a higher frequency and concentration in fertile women than in women with repetitive abortion or infertility. The metataxonomic study revealed that vaginal samples from fertile women were characterized by the high abundance of Lactobacillus sequences, while DNA from this genus was practically absent in one third of samples from women with reproductive failure. Daily oral administration of L. salivarius CECT5713 (~9 log10 CFU/day) to women with reproductive failure for a maximum of 6 months resulted in an overall successful pregnancy rate of 56%. The probiotic intervention modified key microbiological, biochemical, and immunological parameters in women who got pregnant. In conclusion, L. salivarius CECT5713 has proved to be a good candidate to improve reproductive success in women with reproductive failure.
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Comparative Genomic Study of Lactobacillus jensenii and the Newly Defined Lactobacillus mulieris Species Identifies Species-Specific Functionality. mSphere 2020; 5:5/4/e00560-20. [PMID: 32817455 PMCID: PMC7426171 DOI: 10.1128/msphere.00560-20] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Lactobacillus species play a key role in the health of the urinary tract. For instance, Lactobacillus crispatus and L. jensenii have been found to inhibit uropathogenic Escherichia coli growth. While L. crispatus is typically found only within the microbiota of women without lower urinary tract symptoms (LUTS), L. jensenii has been found in the microbiota of women both with and without LUTS. With the recent introduction of the new species Lactobacillus mulieris, several strains of L. jensenii were reclassified as L. mulieris based upon gene marker and average nucleotide identity. We took a phylogenomic and comparative genomic approach to ascertain the genetic determinants of these two species. Looking at a larger data set, we identified additional L. mulieris strains, including one distinct from other members of the species—L. mulieris UMB7784. Furthermore, we identified unique loci in each species that may have clinical implications. Lactobacilli are dominant members of the “healthy” female urogenital microbiota. One of these species, Lactobacillus jensenii, is routinely identified in the urinary microbiota of women both with and without urinary tract symptoms. In March 2020, the new bacterial species Lactobacillus mulieris was introduced, and phylogenetic and average nucleotide identity analysis identified eight L. jensenii strains that should be classified as members of the L. mulieris species. This prompted our phylogenomic study of all publicly available L. jensenii and L. mulieris genome sequences. While there is little variation in the 16S rRNA gene sequences, the core genome shows a clear distinction between genomes of the two species. We find eight additional strains of the species L. mulieris among these genomes. Furthermore, one strain, currently classified as L. mulieris UMB7784, is distinct from both L. jensenii and L. mulieris strains. As part of our comparative genomic study, we also investigated the genetic content that distinguishes these two species. Unique to the L. jensenii genomes are several genes related to catabolism of disaccharides. In contrast, L. mulieris genomes encode several cell surface and secreted proteins that are not found within the L. jensenii genomes. These L. jensenii-specific and L. mulieris-specific loci provide insight into phenotypic differences of these two species. IMPORTANCELactobacillus species play a key role in the health of the urinary tract. For instance, Lactobacillus crispatus and L. jensenii have been found to inhibit uropathogenic Escherichia coli growth. While L. crispatus is typically found only within the microbiota of women without lower urinary tract symptoms (LUTS), L. jensenii has been found in the microbiota of women both with and without LUTS. With the recent introduction of the new species Lactobacillus mulieris, several strains of L. jensenii were reclassified as L. mulieris based upon gene marker and average nucleotide identity. We took a phylogenomic and comparative genomic approach to ascertain the genetic determinants of these two species. Looking at a larger data set, we identified additional L. mulieris strains, including one distinct from other members of the species—L. mulieris UMB7784. Furthermore, we identified unique loci in each species that may have clinical implications.
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He Y, Niu X, Wang B, Na R, Xiao B, Yang H. Evaluation of the Inhibitory Effects of Lactobacillus gasseri and Lactobacillus crispatus on the Adhesion of Seven Common Lower Genital Tract Infection-Causing Pathogens to Vaginal Epithelial Cells. Front Med (Lausanne) 2020; 7:284. [PMID: 32637420 PMCID: PMC7317292 DOI: 10.3389/fmed.2020.00284] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/21/2020] [Indexed: 12/17/2022] Open
Abstract
Background/Purpose: Lactobacillus colonization is important to maintain urogenital flora stability and prevent pathogenic infection. Different Lactobacillus species have distinct properties and effects on the urogenital flora. To select probiotics that colonize the vagina and provide protection against pathogenic infection, we evaluated the adhesion of five Lactobacillus strains and their inhibitory effects on the adhesion of pathogens to vaginal epithelial cells (VECs). Methods and Materials: (1) Lactobacillus adhesion experiments: VK2/E6E7 and primary VECs were used to evaluate the adhesion of two Lactobacillus gasseri and three Lactobacillus crispatus strains. The adhesion of these five Lactobacillus strains was compared. (2) Adhesion inhibition experiments: The inhibitory effects of the five Lactobacillus strains on the adhesion of pathogens (Gardnerella, Mobiluncus, Candida albicans, Streptococcus agalactiae, Staphylococcus aureus, Escherichia coli, and Enterococcus faecalis) were evaluated by adhesion exclusion, displacement, and competition experiments. Results: (1) Lactobacillus adhesion was stronger in the primary VECs than in the VK2/E6E7 VECs (P < 0.05). The adhesion of the three L. crispatus strains was stronger than that of the two L. gasseri strains (P < 0.05). L. crispatus 4# showed the strongest adhesion. (2) The exclusion, displacement, and competition experiments showed that all five Lactobacillus strains significantly inhibited the adhesion of the seven pathogenic strains to the VECs (P < 0.05). The displacement effect was stronger than the exclusion and competition effects of each Lactobacillus strain. (3) The results of the exclusion, displacement, and competition experiments indicated that L. gasseri 1# showed the strongest adhesion inhibition of C. albicans and S. agalactiae. L. crispatus 3# showed the strongest adhesion inhibition of S. aureus, whereas L. crispatus 4# showed the strongest adhesion inhibition of Gardnerella, Mobiluncus, E. coli, and E. faecalis. Conclusion: The source of the VECs might not affect the selection of the most adhesive Lactobacillus strain. L. crispatus showed stronger VEC adhesion than L. gasseri. The degree of antagonism of the Lactobacillus strains toward the different pathogens varied. This result provides incentives for personalized clinical treatment.
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Affiliation(s)
- Yuanhui He
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Xiaoxi Niu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Ben Wang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Risu Na
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Bingbing Xiao
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Huixia Yang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
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Happel AU, Kullin B, Gamieldien H, Wentzel N, Zauchenberger CZ, Jaspan HB, Dabee S, Barnabas SL, Jaumdally SZ, Dietrich J, Gray G, Bekker LG, Froissart R, Passmore JAS. Exploring potential of vaginal Lactobacillus isolates from South African women for enhancing treatment for bacterial vaginosis. PLoS Pathog 2020; 16:e1008559. [PMID: 32497109 PMCID: PMC7271994 DOI: 10.1371/journal.ppat.1008559] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 04/16/2020] [Indexed: 12/12/2022] Open
Abstract
Antibiotics continue to be the standard-of-care for bacterial vaginosis (BV), although recurrence rates are high. Vaginal probiotics may improve durability of BV treatment, although few probiotics for vaginal health contain Lactobacillus spp. that commonly colonize the lower female genital tract. Characteristics of vaginal Lactobacillus strains from South African women were evaluated for their probiotic potential in vitro compared to strains from commercial vaginal products, including growth at varying pHs, ability to lower pH, produce D-/L-lactate and H2O2, influence growth of BV-associated Gardnerella vaginalis and Prevotella bivia, adherence to cervical cells and susceptibility to antibiotics. Fifty-seven Lactobacillus strains were purified from cervico-vaginal fluid, including L. crispatus, L. jensenii, L. gasseri, L. mucosae, and L. vaginalis. L crispatus strains grew better at pHs below 4.5 and lowered pH more effectively than other strains. Production of D-/L-lactate and H2O2 varied between Lactobacillus species and strains. Lactobacillus strains generally inhibited P. bivia more uniformly than G. vaginalis isolates. All vaginal Lactobacillus isolates were resistant to metronidazole while susceptibility to clindamycin varied. Furthermore, vaginal Lactobacillus strains tended to be broadly susceptible to penicillin, amoxicillin, rifampicin and rifabutin. Whole-genome-sequencing of five of the best-performing vaginal Lactobacillus strains confirmed their likely safety, due to antimicrobial resistance elements being largely absent, while putative intact prophages were present in the genomes of two of the five strains. Overall, vaginal Lactobacillus strains largely performed better in these in vitro assays than probiotic strains currently used in probiotics for vaginal health. Including the best-performing vaginal Lactobacillus isolates in a region-specific probiotic for vaginal health may result in improved BV treatment options.
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Affiliation(s)
- Anna-Ursula Happel
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
| | - Brian Kullin
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
| | - Hoyam Gamieldien
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
| | - Nicole Wentzel
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
| | - Chambrez Z. Zauchenberger
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
| | - Heather B. Jaspan
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
- Seattle Children’s Hospital, Seattle, United States of America
| | - Smritee Dabee
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
- Seattle Children’s Hospital, Seattle, United States of America
| | - Shaun L. Barnabas
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
- Family Centre for Research with Ubuntu (FAMCRU), Stellenbosch University, Tygerberg, South Africa
| | - Shameem Z. Jaumdally
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
| | - Janan Dietrich
- Perinatal HIV Research Unit (PHRU), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Glenda Gray
- Perinatal HIV Research Unit (PHRU), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Linda-Gail Bekker
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
- Desmond Tutu HIV Foundation, University of Cape Town, Cape Town, South Africa
| | - Remy Froissart
- UMR MIVEGEC CNRS-IRD-UM, University Montpellier, Montpellier, France
| | - Jo-Ann S. Passmore
- Department of Pathology, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Cape Town, South Africa
- NRF-DST CAPRISA Centre of Excellence in HIV Prevention, Cape Town, South Africa
- National Health Laboratory Service (NHLS), Cape Town, South Africa
- * E-mail:
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Galacto-Oligosaccharides Modulate the Juvenile Gut Microbiome and Innate Immunity To Improve Broiler Chicken Performance. mSystems 2020; 5:5/1/e00827-19. [PMID: 31937680 PMCID: PMC6967391 DOI: 10.1128/msystems.00827-19] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Improvements in growth performance and health are key goals in broiler chicken production. Inclusion of prebiotic galacto-oligosaccharides (GOS) in broiler feed enhanced the growth rate and feed conversion of chickens relative to those obtained with a calorie-matched control diet. Comparison of the cecal microbiota identified key differences in abundances of Lactobacillus spp. Increased levels of Lactobacillus johnsonii in GOS-fed juvenile birds at the expense of Lactobacillus crispatus were linked to improved performance (growth rate and market weight). Investigation of the innate immune responses highlighted increases of ileal and cecal interleukin-17A (IL-17A) gene expression counterposed to a decrease in IL-10. Quantification of the autochthonous Lactobacillus spp. revealed a correlation between bird performance and L. johnsonii abundance. Shifts in the cecal populations of key Lactobacillus spp. of juvenile birds primed intestinal innate immunity without harmful pathogen challenge.IMPORTANCE Improvements in the growth rate of broiler chickens can be achieved through dietary manipulation of the naturally occurring bacterial populations while mitigating the withdrawal of antibiotic growth promoters. Prebiotic galacto-oligosaccharides (GOS) are manufactured as a by-product of dairy cheese production and can be incorporated into the diets of juvenile chickens to improve their health and performance. This study investigated the key mechanisms behind this progression and pinpointed L. johnsonii as a key species that facilitates the enhancements in growth rate and gut health. The study identified the relationships between the GOS diet, L. johnsonii intestinal populations, and cytokine immune effectors to improve growth.
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Microbiological Assessment of the Quality of Some Commercial Products Marketed as Lactobacillus crispatus-Containing Probiotic Dietary Supplements. Microorganisms 2019; 7:microorganisms7110524. [PMID: 31684185 PMCID: PMC6921017 DOI: 10.3390/microorganisms7110524] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 11/17/2022] Open
Abstract
In the last decade, many authors have reported low viability for probiotic products. Investigators commonly find they are not meeting claimed active counts and/or incorrect species and/or strains have been identified. We have therefore decided to verify viability, the real dose and species correspondence in nine probiotic products (seven nutritional supplements and two medical devices) collected from the Italian and French markets claiming to contain at least one strain of L. crispatus among the different species/strain included in the formulation. In fact, the medical relevance of L. crispatus strains has recently grown., as evaluating the possible dominance clusters typical of the vaginal microbiota, the Community State Type I, the one dominated by L. crispatus, appears to be “protective” in terms of infections, fertility and gestational duration of pregnancy. The results obtained demonstrate the generally poor quality of probiotics. Out of nine products, only two definitely contained viable Lactobacillus crispatus cells with a daily dose of at least 1 × 109 CFU/g and with an acceptable correspondence with what is declared on the label. Among these two, only one was found to be formulated with a strain (M247) that has been scientifically documented.
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Graf K, Last A, Gratz R, Allert S, Linde S, Westermann M, Gröger M, Mosig AS, Gresnigt MS, Hube B. Keeping Candida commensal: how lactobacilli antagonize pathogenicity of Candida albicans in an in vitro gut model. Dis Model Mech 2019; 12:dmm.039719. [PMID: 31413153 PMCID: PMC6765188 DOI: 10.1242/dmm.039719] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 08/02/2019] [Indexed: 12/20/2022] Open
Abstract
The intestine is the primary reservoir of Candida albicans that can cause systemic infections in immunocompromised patients. In this reservoir, the fungus exists as a harmless commensal. However, antibiotic treatment can disturb the bacterial microbiota, facilitating fungal overgrowth and favoring pathogenicity. The current in vitro gut models that are used to study the pathogenesis of C. albicans investigate the state in which C. albicans behaves as a pathogen rather than as a commensal. We present a novel in vitro gut model in which the fungal pathogenicity is reduced to a minimum by increasing the biological complexity. In this model, enterocytes represent the epithelial barrier and goblet cells limit C. albicans adhesion and invasion. Significant protection against C. albicans-induced necrotic damage was achieved by the introduction of a microbiota of antagonistic lactobacilli. We demonstrated a time-, dose- and species-dependent protective effect against C. albicans-induced cytotoxicity. This required bacterial growth, which relied on the presence of host cells, but was not dependent on the competition for adhesion sites. Lactobacillus rhamnosus reduced hyphal elongation, a key virulence attribute. Furthermore, bacterial-driven shedding of hyphae from the epithelial surface, associated with apoptotic epithelial cells, was identified as a main and novel mechanism of damage protection. However, host cell apoptosis was not the driving mechanism behind shedding. Collectively, we established an in vitro gut model that can be used to experimentally dissect commensal-like interactions of C. albicans with a bacterial microbiota and the host epithelial barrier. We also discovered fungal shedding as a novel mechanism by which bacteria contribute to the protection of epithelial surfaces.This article has an associated First Person interview with the joint first authors of the paper.
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Affiliation(s)
- Katja Graf
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knoell-Institute, Beutenbergstraße 11A, 07745 Jena, Germany
| | - Antonia Last
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knoell-Institute, Beutenbergstraße 11A, 07745 Jena, Germany
| | - Rena Gratz
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knoell-Institute, Beutenbergstraße 11A, 07745 Jena, Germany
| | - Stefanie Allert
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knoell-Institute, Beutenbergstraße 11A, 07745 Jena, Germany
| | - Susanne Linde
- Center for Electron Microscopy Jena University Hospital, Ziegelmühlenweg 1, 07743 Jena, Germany
| | - Martin Westermann
- Center for Electron Microscopy Jena University Hospital, Ziegelmühlenweg 1, 07743 Jena, Germany
| | - Marko Gröger
- Center for Sepsis Control and Care (CSCC), University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany
| | - Alexander S Mosig
- Center for Sepsis Control and Care (CSCC), University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany.,Institute of Biochemistry II, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany
| | - Mark S Gresnigt
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knoell-Institute, Beutenbergstraße 11A, 07745 Jena, Germany
| | - Bernhard Hube
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knoell-Institute, Beutenbergstraße 11A, 07745 Jena, Germany .,Friedrich Schiller University, Fürstengraben 1, 07743 Jena, Germany
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Bajic P, Dornbier RA, Doshi CP, Wolfe AJ, Farooq AV, Bresler L. Implications of the Genitourinary Microbiota in Prostatic Disease. Curr Urol Rep 2019; 20:34. [PMID: 31104156 DOI: 10.1007/s11934-019-0904-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW To summarize recent investigation into associations between the genitourinary microbiota and prostatic disease. RECENT FINDINGS The genitourinary tract is not sterile. There are microbial communities (microbiota) in each niche of the genitourinary tract including the bladder, prostate, and urethra, which have been the subject of increasing scientific interest. Investigators have utilized several unique methods to study them, resulting in a highly heterogeneous body of literature. To characterize these genitourinary microbiota, diverse clinical specimens have been analyzed, including urine obtained by various techniques, seminal fluid, expressed prostatic secretions, and prostatic tissue. Recent studies have attempted to associate the microbiota detected from these samples with urologic disease and have implicated the genitourinary microbiota in many common conditions, including benign prostatic hyperplasia (BPH), prostate cancer, and chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). In this review, we summarize the recent literature pertaining to the genitourinary microbiota and its relationship to the pathophysiology and management of three common prostatic conditions: BPH, prostate cancer, and CP/CPPS.
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Affiliation(s)
- Petar Bajic
- Department of Urology, Loyola University Chicago Stritch School of Medicine, 2160 South First Ave. Building 54, Room 23A, Maywood, IL, 60153, USA.
| | - Ryan A Dornbier
- Department of Urology, Loyola University Chicago Stritch School of Medicine, 2160 South First Ave. Building 54, Room 23A, Maywood, IL, 60153, USA
| | - Chirag P Doshi
- Department of Urology, Loyola University Chicago Stritch School of Medicine, 2160 South First Ave. Building 54, Room 23A, Maywood, IL, 60153, USA
| | - Alan J Wolfe
- Department of Microbiology and Immunology, Loyola University Chicago Stritch School of Medicine, 2160 South First Ave. CTRE Building, Room 224, Maywood, IL, 60153, USA
| | - Ahmer V Farooq
- Department of Urology, Loyola University Chicago Stritch School of Medicine, 2160 South First Ave. Building 54, Room 23A, Maywood, IL, 60153, USA
| | - Larissa Bresler
- Department of Urology, Loyola University Chicago Stritch School of Medicine, 2160 South First Ave. Building 54, Room 23A, Maywood, IL, 60153, USA
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Pino A, Bartolo E, Caggia C, Cianci A, Randazzo CL. Detection of vaginal lactobacilli as probiotic candidates. Sci Rep 2019; 9:3355. [PMID: 30833631 PMCID: PMC6399336 DOI: 10.1038/s41598-019-40304-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 02/08/2019] [Indexed: 11/18/2022] Open
Abstract
The vaginal microbiota of healthy women is dominated by lactobacilli, which exerts important health-promoting effects to the host. In the present study, 261 lactobacilli isolated from vagina of healthy women were screened for their potential probiotic characteristics. Safety features (haemolytic activity, antibiotic susceptibility, bile salt hydrolase activity) and functional properties (resistance to low pH and bile salts, lysozyme tolerance, gastrointestinal survival, antagonistic activity against pathogens, hydrophobicity, auto-aggregation, and co-aggregation abilities, hydrogen peroxide production, biofilm formation, exopolysaccharide production, adhesion capacity to both normal human vagina epithelial cells and Caco-2 epithelial cells, and lactic acid production) were in depth evaluated. Seven strains, identified as Lactobacillus rhamnosus, Lactobacillus helveticus and Lactobacillus salivarius fulfilled the criteria described above. Therefore, the vaginal ecosystem represents a suitable source of probiotic candidates that could be used in new functional formulates for both gastrointestinal and vaginal eubiosis.
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Affiliation(s)
- Alessandra Pino
- Department of Agricultural, Food and Environment, University of Catania, Catania, Italy
| | - Emanuela Bartolo
- Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic, University of Catania, Policlinico Universitario, Catania, Italy
| | - Cinzia Caggia
- Department of Agricultural, Food and Environment, University of Catania, Catania, Italy
| | - Antonio Cianci
- Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic, University of Catania, Policlinico Universitario, Catania, Italy
| | - Cinzia L Randazzo
- Department of Agricultural, Food and Environment, University of Catania, Catania, Italy.
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Fuochi V, Cardile V, Petronio Petronio G, Furneri PM. Biological properties and production of bacteriocins-like-inhibitory substances by Lactobacillus sp. strains from human vagina. J Appl Microbiol 2019; 126:1541-1550. [PMID: 30499608 DOI: 10.1111/jam.14164] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/07/2018] [Accepted: 11/23/2018] [Indexed: 01/02/2023]
Abstract
AIMS The aim of this study was to characterize Lactobacillus strains for their biological properties and amensalistic activities against genital and nongenital pathogens. METHODS AND RESULTS For the purpose, some special characteristics (H2 O2 , biofilm and antimicrobial substances production) as well as safety properties of 112 lactobacilli were evaluated. All the strains had good amensalistic characteristics, in particular cell-free supernatants of 10 strains showed antibacterial activity against bacteria, as well as Candida sp. Moreover, these 10 strains were excellent biofilm producers. CONCLUSIONS These results provide evidence for the possible use as probiotics for vaginal co-therapy in case of dysbiosis. SIGNIFICANCE AND IMPACT OF THE STUDY Recently, the problem of antibiotic resistance is constantly increasing, even though resources and energy are invested in order to increase knowledge on the mechanisms of action. Bacteriocins have a rapid mechanism of action, act at extremely low concentrations, are generally sensitive to proteases and they usually have a narrow killing spectrum; these characteristics reduce the possibility of the bacterium to develop resistance. This study is focused on the feasibility of a high production of antimicrobial substances and their characterization in order to be exploited as a therapeutic alterative or in co-therapy with antibiotics in case of vaginal dysbiosis.
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Affiliation(s)
- V Fuochi
- Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC Sez. Microbiologia, Università degli Studi di Catania, Catania, Italy
| | - V Cardile
- Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC Sez. Fisiologia, Università degli Studi di Catania, Catania, Italy
| | - G Petronio Petronio
- Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC Sez. Microbiologia, Università degli Studi di Catania, Catania, Italy
| | - P M Furneri
- Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC Sez. Microbiologia, Università degli Studi di Catania, Catania, Italy
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ER S, İSTANBULLU TOSUN A, ARIK G, KIVANÇ M. Anticandidal activities of lactic acid bacteria isolated from the vagina. Turk J Med Sci 2019; 49:375-383. [PMID: 30761844 PMCID: PMC7350877 DOI: 10.3906/sag-1709-143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background/aim Lactic acid bacteria prevent the overgrowth of pathogenic agents and opportunistic pathogens in the vagina. Moreover, lactic acid bacteria contribute to the preservation of vaginal microbiota by producing antimicrobial agents. Previous studies showed that some lactic acid bacteria exhibited antimicrobial activity against Candida species causing yeast vaginosis as well as many bacterial pathogens. Materials and methods The antifungal activities of various lactic acid bacteria isolated from the vagina of healthy women on some Candida species isolated from the vagina were investigated by agar diffusion technique. Results Most of the lactic acid bacteria that belong to the species of Lactobacillus crispatus, L. fermentum, L. acidophilus, L. paracesei subsp. paracesei, L. pentosus, and L. plantarum exhibited antifungal activity in varying ratios against C. albicans, C. glabrata, and C. tropicalis strains isolated from the vagina. Conclusion The lactic acid bacteria are useful microorganisms associated with a variety of probiotic properties. In this sense, our lactic acid bacteria isolates with high antifungal activity may be promising candidates as probiotic microorganisms in the inhibition of vaginal candidiasis, which is one of the most prevalent problems, or in the protection against candidiasis. We will continue our studies in this area.
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Affiliation(s)
- Sevda ER
- Department of Medical Services and Techniques, Yunus Emre Vocational School of Health Services,Anadolu University, EskişehirTurkey
- * To whom correspondence should be addressed. E-mail:
| | - Ayşe İSTANBULLU TOSUN
- Department of Medical Microbiology, Faculty of Medicine, İstanbul Medipol University, İstanbulTurkey
| | - Gizem ARIK
- Department of Biology, Faculty of Sciences, Anadolu University, EskişehirTurkey
| | - Merih KIVANÇ
- Department of Biology, Faculty of Sciences, Anadolu University, EskişehirTurkey
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Beyer R, Jandric Z, Zutz C, Gregori C, Willinger B, Jacobsen ID, Kovarik P, Strauss J, Schüller C. Competition of Candida glabrata against Lactobacillus is Hog1 dependent. Cell Microbiol 2018; 20:e12943. [PMID: 30112857 PMCID: PMC6283251 DOI: 10.1111/cmi.12943] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 07/04/2018] [Accepted: 08/07/2018] [Indexed: 12/30/2022]
Abstract
Candida glabrata is a common human fungal commensal and opportunistic pathogen. This fungus shows remarkable resilience as it can form recalcitrant biofilms on indwelling catheters, has intrinsic resistance against azole antifungals, and is causing vulvovaginal candidiasis. As a nosocomial pathogen, it can cause life-threatening bloodstream infections in immune-compromised patients. Here, we investigate the potential role of the high osmolarity glycerol response (HOG) MAP kinase pathway for C. glabrata virulence. The C. glabrata MAP kinase CgHog1 becomes activated by a variety of environmental stress conditions such as osmotic stress, low pH, and carboxylic acids and subsequently accumulates in the nucleus. We found that CgHog1 allows C. glabrata to persist within murine macrophages, but it is not required for systemic infection in a mouse model. C. glabrata and Lactobacilli co-colonise mucosal surfaces. Lactic acid at a concentration produced by vaginal Lactobacillus spp. causes CgHog1 phosphorylation and accumulation in the nucleus. In addition, CgHog1 enables C. glabrata to tolerate different Lactobacillus spp. and their metabolites when grown in co-culture. Using a phenotypic diverse set of clinical C. glabrata isolates, we find that the HOG pathway is likely the main quantitative determinant of lactic acid stress resistance. Taken together, our data indicate that CgHog1 has an important role in the confrontation of C. glabrata with the common vaginal flora.
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Affiliation(s)
- Reinhard Beyer
- Department of Applied Genetics and Cell Biology (DAGZ)University of Natural Resources and Life Sciences, Vienna (BOKU)TullnAustria
| | - Zeljkica Jandric
- Department of Applied Genetics and Cell Biology (DAGZ)University of Natural Resources and Life Sciences, Vienna (BOKU)TullnAustria
| | - Christoph Zutz
- Department of Farm Animal and Veterinary Public HealthInstitute of Milk Hygiene, Milk Technology and Food ScienceViennaAustria
- Platform Bioactive Microbial Metabolites (BiMM)
| | - Christa Gregori
- Department of Applied Genetics and Cell Biology (DAGZ)University of Natural Resources and Life Sciences, Vienna (BOKU)TullnAustria
| | - Birgit Willinger
- Division of Clinical Microbiology, Department of Laboratory MedicineMedical University of ViennaViennaAustria
| | - Ilse D. Jacobsen
- Research Group Microbial Immunology, Leibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐Institute (HKI)JenaGermany
| | - Pavel Kovarik
- Max F. Perutz LaboratoriesUniversity of Vienna, Vienna Biocenter (VBC)ViennaAustria
| | - Joseph Strauss
- Department of Applied Genetics and Cell Biology (DAGZ)University of Natural Resources and Life Sciences, Vienna (BOKU)TullnAustria
- Platform Bioactive Microbial Metabolites (BiMM)
| | - Christoph Schüller
- Department of Applied Genetics and Cell Biology (DAGZ)University of Natural Resources and Life Sciences, Vienna (BOKU)TullnAustria
- Platform Bioactive Microbial Metabolites (BiMM)
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Zhang Z, Lv J, Pan L, Zhang Y. Roles and applications of probiotic Lactobacillus strains. Appl Microbiol Biotechnol 2018; 102:8135-8143. [PMID: 30032432 DOI: 10.1007/s00253-018-9217-9] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/30/2018] [Accepted: 07/02/2018] [Indexed: 12/19/2022]
Abstract
Lactobacilli are recognized as probiotics on account of their health-promoting effects in the host. The aim of this review is to summarize current knowledge of the mechanisms of the adaption factors and main functions of lactobacilli that exert health-promoting effects in the host and to discuss important applications in animal and human health. The adaption mechanisms of lactobacilli facilitate interactions with the host and directly contribute to the beneficial nutritional, physiological, microbiological, and immunological effects in the host. Besides, the application of probiotic lactobacilli will increase our understanding of practical uses based on the roles of these organisms in immunoregulation, antipathogenic activities, and enhancement of the epithelial barrier.
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Affiliation(s)
- Zhongwang Zhang
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 1 Xujiaping, Yanchangbu, Lanzhou, 730046, Gansu, China
| | - Jianliang Lv
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 1 Xujiaping, Yanchangbu, Lanzhou, 730046, Gansu, China
| | - Li Pan
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 1 Xujiaping, Yanchangbu, Lanzhou, 730046, Gansu, China. .,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, Jiangsu, People's Republic of China.
| | - Yongguang Zhang
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 1 Xujiaping, Yanchangbu, Lanzhou, 730046, Gansu, China.,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, Jiangsu, People's Republic of China
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Yu XY, Fu F, Kong WN, Xuan QK, Wen DH, Chen XQ, He YM, He LH, Guo J, Zhou AP, Xi YH, Ni LJ, Yao YF, Wu WJ. Streptococcus agalactiae Inhibits Candida albicans Hyphal Development and Diminishes Host Vaginal Mucosal TH17 Response. Front Microbiol 2018. [PMID: 29527193 PMCID: PMC5829043 DOI: 10.3389/fmicb.2018.00198] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Streptococcus agalactiae and Candida albicans often co-colonize the female genital tract, and under certain conditions induce mucosal inflammation. The role of the interaction between the two organisms in candidal vaginitis is not known. In this study, we found that co-infection with S. agalactiae significantly attenuated the hyphal development of C. albicans, and that EFG1-Hwp1 signal pathway of C. albicans was involved in this process. In a mouse model of vulvovaginal candidiasis (VVC), the fungal burden and the levels of pro-inflammatory cytokines, IL-1β, IL-6 and TNF-α showed a increase on co-infection with S. agalactiae, while the level of TH17 T cells and IL-17 in the cervicovaginal lavage fluid were significantly decreased. Our results indicate that S. agalactiae inhibits C. albicans hyphal development by downregulating the expression of EFG1-Hwp1. The interaction between S. agalactiae and C. albicans may attenuate host vaginal mucosal TH17 immunity and contribute to mucosal colonization by C. albicans.
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Affiliation(s)
- Xiao-Yu Yu
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fei Fu
- Department of Obstetrics and Gynecology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wen-Na Kong
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qian-Kun Xuan
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Dong-Hua Wen
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiao-Qing Chen
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Yong-Ming He
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Li-Hua He
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jian Guo
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ai-Ping Zhou
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yang-Hong Xi
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Li-Jun Ni
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yu-Feng Yao
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wen-Juan Wu
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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Tachedjian G, O’Hanlon DE, Ravel J. The implausible "in vivo" role of hydrogen peroxide as an antimicrobial factor produced by vaginal microbiota. MICROBIOME 2018; 6:29. [PMID: 29409534 PMCID: PMC5801833 DOI: 10.1186/s40168-018-0418-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 01/30/2018] [Indexed: 05/29/2023]
Abstract
In the cervicovaginal environment, the production of hydrogen peroxide (H2O2) by vaginal Lactobacillus spp. is often mentioned as a critical factor to the in vivo vaginal microbiota antimicrobial properties. We present several lines of evidence that support the implausibility of H2O2 as an "in vivo" contributor to the cervicovaginal milieu antimicrobial properties. An alternative explanation is proposed, supported by previous reports ascribing protective and antimicrobial properties to other factors produced by Lactobacillus spp. capable of generating H2O2. Under this proposal, lactic acid rather than H2O2 plays an important role in the antimicrobial properties of protective vaginal Lactobacillus spp. We hope this commentary will help future research focus on more plausible mechanisms by which vaginal Lactobacillus spp. exert their antimicrobial and beneficial properties, and which have in vivo and translational relevance.
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Affiliation(s)
- Gilda Tachedjian
- Disease Elimination Program, Life Sciences Discipline, Burnet Institute, 85 Commercial Rd, Melbourne, Victoria 3004 Australia
- Department of Microbiology, Monash University, Clayton, VIC 3168 Australia
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3010 Australia
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000 Australia
| | - Deirdre E. O’Hanlon
- Institute for Genome Sciences, University of Maryland School of Medicine, 801 West Baltimore Street, Baltimore, MD 21201 USA
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201 USA
| | - Jacques Ravel
- Institute for Genome Sciences, University of Maryland School of Medicine, 801 West Baltimore Street, Baltimore, MD 21201 USA
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201 USA
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Amabebe E, Anumba DOC. Psychosocial Stress, Cortisol Levels, and Maintenance of Vaginal Health. Front Endocrinol (Lausanne) 2018; 9:568. [PMID: 30319548 PMCID: PMC6165882 DOI: 10.3389/fendo.2018.00568] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 09/05/2018] [Indexed: 01/01/2023] Open
Abstract
Stress stimuli are ubiquitous and women do not enjoy any exemptions. The physiologic "fight-or-flight" response may be deleterious to the female lower genital tract microbiome if the stress stimuli persist for longer than necessary. Persistent exposure to psychosocial stress and stimulation of the hypothalamic-pituitary-adrenal (HPA) and sympathetic-adrenal-medullary (SAM) axes, and associated hormones are risk factors for several infections including genitourinary tract infections. Though this could be due to a dysregulated immune response, a cortisol-induced inhibition of vaginal glycogen deposition may be involved especially in the instance of vaginal infection. The estrogen-related increased vaginal glycogen and epithelial maturation are required for the maintenance of a healthy vaginal ecosystem (eubiosis). The ability of cortisol to disrupt this process as indicated in animal models is important in the pathogenesis of vaginal dysbiosis and the subsequent development of infection and inflammation. This phenomenon may be more crucial in pregnancy where a healthy Lactobacillus-dominated vaginal microbiota is sacrosanct, and there is local production of more corticotropin-releasing hormone (CRH) from the decidua, fetal membranes and placenta. To highlight the relationship between the stress hormone cortisol and the vaginal microbiomial architecture and function, the potential role of cortisol in the maintenance of vaginal health is examined.
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Pessoa WFB, Melgaço ACC, de Almeida ME, Ramos LP, Rezende RP, Romano CC. In Vitro Activity of Lactobacilli with Probiotic Potential Isolated from Cocoa Fermentation against Gardnerella vaginalis. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3264194. [PMID: 29226130 PMCID: PMC5684529 DOI: 10.1155/2017/3264194] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/06/2017] [Accepted: 09/18/2017] [Indexed: 01/28/2023]
Abstract
Study of the probiotic potential of microorganisms isolated from fermented foods has been increasing, especially studies related to lactobacilli. In intestinal models, lactobacilli have demonstrated beneficial properties, such as anti-inflammatory activity and increased antibody production, but the molecular mechanisms involving probiotic and antagonistic action as well as their effect on human vaginal cells have not yet been fully elucidated. The aim of this study was to evaluate the functional and antagonistic properties of three strains of lactobacilli isolated from cocoa fermentation (Lactobacillus fermentum 5.2, L. plantarum 6.2, and L. plantarum 7.1) against Gardnerella vaginalis. Our results show that the lactobacilli have potential use as probiotics, since they have high hydrophobicity and autoaggregation properties and effectively adhere to vaginal cells. Metabolites secreted into the culture medium and whole cells of the strains under study are capable of interfering with the growth of G. vaginalis to different degrees. The elucidation of the antagonistic mechanisms as well as their effect on human cells may be useful in the development of a product containing such microorganisms or products secreted by them.
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Affiliation(s)
- Wallace Felipe Blohem Pessoa
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Ana Clara Correia Melgaço
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Milena Evangelista de Almeida
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Louise Pereira Ramos
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Rachel Passos Rezende
- Departamento de Ciências Biológicas, Laboratório de Biotecnologia Microbiana, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Carla Cristina Romano
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
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Mane A, Angadi M, Vidhate P, Bembalkar S, Khan I, Bichare S, Ghate M, Thakar M. Characterization of vaginal lactobacilli from HIV-negative and HIV-positive Indian women and their association with genital HIV-1 shedding. J Med Microbiol 2017; 66:1471-1475. [PMID: 28945188 DOI: 10.1099/jmm.0.000599] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
One of the crucial determinants for successful administration of lactobacilli to the vaginal niche is the use of appropriate Lactobacillus species. In this cross-sectional study 54 human immunodeficiency virus (HIV)-negative and 76 HIV-positive antiretroviral treatment-naïve women were evaluated for culturable vaginal lactobacilli and their association with genital HIV-1 shedding. Lactobacillus species were identified by 16S rDNA sequencing while cervical and plasma HIV-1 viral load was determined by Abbott real-time PCR. Lactobacilli were isolated in 77.8 % HIV-negative and 73.7 % HIV-positive women. The mean log10 plasma and cervical HIV-1 viral loads (RNA copies ml-1) were 3.73±1.02 and 2.85±0.32 respectively. We observed that presence of L. crispatus, L. gasseri or L. jensenii species was associated with undetectable cervical HIV-1 (P=0.046) and reduced genital HIV-1 shedding (P=0.048) compared to other species. Our findings endorse using Lactobacillus-based strategies to aid the prevention of HIV-1 transmission among Indian women, however confirmation by future prospective studies is indeed warranted.
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Affiliation(s)
- Arati Mane
- National AIDS Research Institute, '73' G block, MIDC, Bhosari, Pune-411026, India
| | - Mansa Angadi
- National AIDS Research Institute, '73' G block, MIDC, Bhosari, Pune-411026, India
| | - Pallavi Vidhate
- National AIDS Research Institute, '73' G block, MIDC, Bhosari, Pune-411026, India
| | - Shilpa Bembalkar
- National AIDS Research Institute, '73' G block, MIDC, Bhosari, Pune-411026, India
| | - Ishrat Khan
- National AIDS Research Institute, '73' G block, MIDC, Bhosari, Pune-411026, India
| | - Shubhangi Bichare
- National AIDS Research Institute, '73' G block, MIDC, Bhosari, Pune-411026, India
| | - Manisha Ghate
- National AIDS Research Institute, '73' G block, MIDC, Bhosari, Pune-411026, India
| | - Madhuri Thakar
- National AIDS Research Institute, '73' G block, MIDC, Bhosari, Pune-411026, India
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Abdelmaksoud AA, Girerd PH, Garcia EM, Brooks JP, Leftwich LM, Sheth NU, Bradley SP, Serrano MG, Fettweis JM, Huang B, Strauss JF, Buck GA, Jefferson KK. Association between statin use, the vaginal microbiome, and Gardnerella vaginalis vaginolysin-mediated cytotoxicity. PLoS One 2017; 12:e0183765. [PMID: 28846702 PMCID: PMC5573284 DOI: 10.1371/journal.pone.0183765] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 08/10/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Bacterial vaginosis (BV) is the leading dysbiosis of the vaginal microbiome. The pathways leading towards the development of BV are not well understood. Gardnerella vaginalis is frequently associated with BV. G. vaginalis produces the cholesterol-dependent cytolysin (CDC), vaginolysin, which can lyse a variety of human cells and is thought to play a role in pathogenesis. Because membrane cholesterol is required for vaginolysin to function, and because HMG-CoA reductase inhibitors (statins) affect not only serum levels of cholesterol but membrane levels as well, we hypothesized that statins might affect the vaginal microbiome. METHODS To investigate the relationship between use of the statins and the vaginal microbiome, we analyzed 16S rRNA gene taxonomic surveys performed on vaginal samples from 133 women who participated in the Vaginal Human Microbiome Project and who were taking statins at the time of sampling, 152 women who reported high cholesterol levels but were not taking statins, and 316 women who did not report high cholesterol. To examine the effect of statins on the cytolytic effect of vaginolysin, the cholesterol-dependent cytolysin (CDC) produced by Gardnerella vaginalis, we assessed the effect of simvastatin pretreatment of VK2E6/E7 vaginal epithelial cells on vaginolysin-mediated cytotoxicity. RESULTS The mean proportion of G. vaginalis among women taking statins was significantly lower relative to women not using statins. Women using statins had higher mean proportions of Lactobacillus crispatus relative to women with normal cholesterol levels, and higher levels of Lactobacillus jensenii relative to women with high cholesterol but not taking statins. In vitro, vaginal epithelial cells pretreated with simvastatin were relatively resistant to vaginolysin and this effect was inhibited by cholesterol. CONCLUSIONS In this cross-sectional study, statin use was associated with reduced proportions of G. vaginalis and greater proportions of beneficial lactobacilli within the vaginal microbiome. The negative association between statin use and G. vaginalis may be related to inhibition of vaginolysin function.
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Affiliation(s)
- Abdallah A. Abdelmaksoud
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Philippe H. Girerd
- Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Erin M. Garcia
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - J. Paul Brooks
- Center for the Study of Biological Complexity, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Lauren M. Leftwich
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Nihar U. Sheth
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Steven P. Bradley
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Myrna G. Serrano
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Jennifer M. Fettweis
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Bernice Huang
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Jerome F. Strauss
- Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Gregory A. Buck
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Kimberly K. Jefferson
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
- * E-mail:
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Lactobacillus rhamnosus HN001 and Lactobacillus acidophilus La-14 Attenuate Gardnerella vaginalis-Infected Bacterial Vaginosis in Mice. Nutrients 2017; 9:nu9060531. [PMID: 28545241 PMCID: PMC5490510 DOI: 10.3390/nu9060531] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/14/2017] [Accepted: 05/15/2017] [Indexed: 12/30/2022] Open
Abstract
Oral administration of a probiotic mixture (PM; Respecta®) consisting of Lactobacillus rhamnosus HN001 (L1), Lactobacillus acidophilus La-14 (L2), and lactoferrin RCXTM results in colonization of these probiotics in the vagina of healthy women. Therefore, we examined whether vaginal colonization of the PM ingredients L1 and L2 could attenuate bacterial vaginosis (BV). BV was induced in mice via β-estradiol-3-benzoate-induced immunosuppression and intravaginal inoculation with Gardnerella vaginalis (GV). Inflammatory markers were analyzed using enzyme-linked immunosorbent assay, immunoblotting, quantitative polymerase chain reaction, and flow cytometry. Oral or intravaginal administration of PM resulted in colonization of L1 and L2 in the vagina. Oral or intravaginal administration of L1, L2, or PM significantly inhibited GV-induced epithelial cell disruption, myeloperoxidase activity, NF-κB activation, and IL-1β and TNF-α expression (p < 0.05). Administration of these probiotics also inhibited IL-17 and RORγt expression but increased IL-10 and Foxp3 expression. Of these probiotics, L2 most effectively attenuated GV-induced BV, followed by L1 and PM. Oral administration was more effective against GV-induced BV than intravaginal administration. L1 and L2 also significantly inhibited the adherence of GV to HeLa cells (a human cervical cancer cell line) and GV growth in vitro. In addition, L1 and L2 inhibited lipopolysaccharide-induced NF-κB activation in macrophages and the differentiation of splenocytes into Th17 cells in vitro, but increased their differentiation into Treg cells. Our study suggests that L1, L2, and PM attenuated GV-induced vaginosis by regulating both vaginal and systemic innate and adaptive immune responses rather than direct competition or killing of GV in the vagina.
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Medina-Colorado AA, Vincent KL, Miller AL, Maxwell CA, Dawson LN, Olive T, Kozlova EV, Baum MM, Pyles RB. Vaginal ecosystem modeling of growth patterns of anaerobic bacteria in microaerophilic conditions. Anaerobe 2017; 45:10-18. [PMID: 28456518 DOI: 10.1016/j.anaerobe.2017.04.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 04/21/2017] [Accepted: 04/24/2017] [Indexed: 12/30/2022]
Abstract
The human vagina constitutes a complex ecosystem created through relationships established between host mucosa and bacterial communities. In this ecosystem, classically defined bacterial aerobes and anaerobes thrive as communities in the microaerophilic environment. Levels of CO2 and O2 present in the vaginal lumen are impacted by both the ecosystem's physiology and the behavior and health of the human host. Study of such complex relationships requires controlled and reproducible causational approaches that are not possible in the human host that, until recently, was the only place these bacterial communities thrived. To address this need we have utilized our ex vivo human vaginal mucosa culture system to support controlled, reproducible colonization by vaginal bacterial communities (VBC) collected from healthy, asymptomatic donors. Parallel vaginal epithelial cells (VEC)-VBC co-cultures were exposed to two different atmospheric conditions to study the impact of CO2 concentrations upon the anaerobic bacteria associated with dysbiosis and inflammation. Our data suggest that in the context of transplanted VBC, increased CO2 favored specific lactobacilli species defined as microaerophiles when grown as monocultures. In preliminary studies, the observed community changes also led to shifts in host VEC phenotypes with significant changes in the host transcriptome, including altered expression of select molecular transporter genes. These findings support the need for additional study of the environmental changes associated with behavior and health upon the symbiotic and adversarial relationships that are formed in microbial communities present in the human vaginal ecosystem.
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Affiliation(s)
| | - Kathleen L Vincent
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Aaron L Miller
- Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, USA
| | - Carrie A Maxwell
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Lauren N Dawson
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Trevelyn Olive
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Elena V Kozlova
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Marc M Baum
- Oak Crest Institute of Science, Monrovia, CA, USA
| | - Richard B Pyles
- Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, USA; Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA.
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Wang S, Wang Q, Yang E, Yan L, Li T, Zhuang H. Antimicrobial Compounds Produced by Vaginal Lactobacillus crispatus Are Able to Strongly Inhibit Candida albicans Growth, Hyphal Formation and Regulate Virulence-related Gene Expressions. Front Microbiol 2017; 8:564. [PMID: 28421058 PMCID: PMC5378977 DOI: 10.3389/fmicb.2017.00564] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 03/20/2017] [Indexed: 01/09/2023] Open
Abstract
The female vaginal environment contains diverse microorganisms, and their interactions play significant roles in health and disease. Lactobacillus species are the predominant vaginal microorganisms in healthy women and relevant as a barrier to defense against pathogens, including Candida albicans. The yeast-to-hyphae transition is believed to be a determinant of C. albicans pathogenesis. In this study, we investigated the effects of vaginal isolates of L. crispatus (seven strains), L. gasseri (six strains), and L. jensenii (five strains) on growth, hyphal formation and virulence-related genes expression of C. albicans ATCC 10231. We found that the L. crispatus showed the most significant antimicrobial activities in microplate-based liquid medium assay (P < 0.05). All seven cell-free supernatants (CFS) from L. crispatus strains reduced the growth of C. albicans by >60%. The effects might be due to their productions of some secretory antimicrobial compounds in addition to H2O2 and organic acids. Furthermore, each of the CFS of Lactobacillus strains was found to significantly suppress the yeast-to-hyphae transition of C. albicans under hyphae-inducing conditions (RPMI 1640 medium supplemented with 10% fetal bovine serum). The hyphae inhibition rates of C. albicans treated by CFS from L. crispatus, L. gasseri, and L. jensenii were 88.3 ± 3.02%, 84.9 ± 6.0%, and 81.9 ± 6.2%, respectively. Moreover, the expression of hyphae-specific genes (ALS3, HWP1, ECE1, EAP1, and SAP5) and transcriptional regulatory genes (EFG1, TEC1, and NRG1) were analyzed using quantitative real-time PCR. The results demonstrated that L. crispatus CFS significantly down-regulated the expression of hyphae-specific genes ALS3 (0.140-fold)), HWP1 (0.075-fold), and ECE1 (0.045-fold), while up-regulated the expression of the negative transcriptional regulator gene NRG1 with 1.911-fold. The antimicrobial compounds from L. crispatus B145 against Candida growth were heat stable and protease resistance, but those against hyphal formation were partially sensitive to the same treatments. Our novel findings suggest that L. crispatus, a dominant Lactobacillus species associated with a healthy vagina, could strongly inhibit C. albicans growth and hyphal formation. L. crispatus might repress the expression of hyphae-specific genes (ALS3, HWP1, and ECE1) in a NRG1-dependent manner. Besides, L. crispatus B145 is highly worthwhile for probiotic investigation.
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Affiliation(s)
- Shuai Wang
- Department of Microbiology and Center of Infectious Disease, School of Basic Medical Sciences, Peking University Health Science CenterBeijing, China
| | - Qiangyi Wang
- Department of Microbiology and Center of Infectious Disease, School of Basic Medical Sciences, Peking University Health Science CenterBeijing, China
| | - Ence Yang
- Department of Microbiology and Center of Infectious Disease, School of Basic Medical Sciences, Peking University Health Science CenterBeijing, China
| | - Ling Yan
- Department of Microbiology and Center of Infectious Disease, School of Basic Medical Sciences, Peking University Health Science CenterBeijing, China
| | - Tong Li
- Department of Microbiology and Center of Infectious Disease, School of Basic Medical Sciences, Peking University Health Science CenterBeijing, China
| | - Hui Zhuang
- Department of Microbiology and Center of Infectious Disease, School of Basic Medical Sciences, Peking University Health Science CenterBeijing, China
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46
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Shonyela SM, Wang G, Yang W, Yang G, Wang C. New Progress regarding the Use of Lactic Acid Bacteria as Live Delivery Vectors, Treatment of Diseases and Induction of Immune Responses in Different Host Species Focusing on <i>Lactobacillus</i> Species. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/wjv.2017.74004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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