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Pagar R, Deshkar S, Mahore J, Patole V, Deshpande H, Gandham N, Mirza S, Junnarkar M, Nawani N. The microbial revolution: Unveiling the benefits of vaginal probiotics and prebiotics. Microbiol Res 2024; 286:127787. [PMID: 38851010 DOI: 10.1016/j.micres.2024.127787] [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: 11/04/2023] [Revised: 05/24/2024] [Accepted: 05/25/2024] [Indexed: 06/10/2024]
Abstract
Vaginal health is essential to a woman's overall well-being, as abnormalities in vaginal health can lead to a variety of gynaecological disorders, such as urinary tract infections, yeast infections, and bacterial vaginosis. The vaginal microbiome is essential for the prevention of these infections. Disruptions in this microbial ecosystem can significantly impact vaginal health. The concept of utilizing probiotics and prebiotics to stimulate the growth of protective vaginal microbiota has gathered substantial interest in recent years. Probiotics are live micro-organisms that strengthen and restore vaginal microbial balance by lowering pH levels, production of bacteriocins, biofilm disruption, modulation of immune response, and production of hydrogen peroxide (H2O2), consequently combating the development of pathogens. Prebiotics are oligosaccharides that encourage the development of probiotics such as lactobacilli species. Probiotics and prebiotics also have some broader implications for vaginal health, including their role in minimizing the incidence of premature birth, optimizing fertility, managing menopausal symptoms, and preventing vaginal infections. Synbiotics are a combination of probiotics and prebiotics that deliver additional benefits by encouraging the development and activity of beneficial microbes. Furthermore, postbiotics are bioactive compounds derived from probiotic bacteria during fermentation that have immunomodulatory actions and provide an additional layer of protection against vaginal infections. The present study highlights the most prevalent vaginal infections and limitations of existing therapies that influence the vaginal microbiota. The profound consequences of probiotics and prebiotics in women's health, including their role in minimizing the prevalence of vaginal infections and promoting overall vaginal health, as well as advanced therapeutic strategies such as synbiotics and postbiotics, are also discussed. The literature offers significant insights into the mechanism, efficacy, and safety of probiotics and prebiotics to healthcare providers and researchers.
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Affiliation(s)
- Roshani Pagar
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, India
| | - Sanjeevani Deshkar
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, India.
| | - Jayashri Mahore
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, India
| | - Vinita Patole
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, India
| | - Hemant Deshpande
- Department of Obstetrics and Gynaecology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pimpri, Pune, India
| | - Nageswari Gandham
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pimpri, Pune, India
| | - Shahzad Mirza
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pimpri, Pune, India
| | - Manisha Junnarkar
- Microbial Diversity Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Pune, India
| | - Neelu Nawani
- Microbial Diversity Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Pune, India
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Crossley P, Sutar Y, Tsoy I, Mukkirwar S, Łaniewski P, Herbst-Kralovetz MM, Date AA. Development of phenyllactic acid ionic liquids and evaluation of cytotoxicity to human cervical epithelial cells. RSC Adv 2024; 14:16083-16092. [PMID: 38765482 PMCID: PMC11100303 DOI: 10.1039/d4ra01812e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/24/2024] [Indexed: 05/22/2024] Open
Abstract
Phenyllactic acid (PLA), is a naturally produced, broad-spectrum antimicrobial compound with activity against bacteria and fungi. PLA can be produced by a variety of lactic acid bacteria, including vaginal Lactobacillus species, which are healthy constituents of the vaginal microbiome with a protective role against invading pathogenic bacteria and/or fungi. Additionally, PLA has been shown to exhibit anti-inflammatory and immunomodulatory properties, overall indicating its therapeutic potential as an intravaginally delivered compound for modulation of the vaginal microbiome. However, PLA has low kinetic solubility in water. Hence, strategies to improve the solubility of PLA are necessary to facilitate its intravaginal delivery. Using biocompatible cations, choline and carnitine, we successfully transformed both d- and l-enantiomers of crystalline PLA into amorphous low-melting ionic liquids (ILs) with high water solubility. We further evaluated the in vitro cytotoxicity of PLA ILs to human cervical epithelial cells. Microscopic visualisation of cellular morphology using crystal violet staining and MTT cell proliferation assay revealed that PLA ILs result in minimal morphological changes and low cytotoxicity to human cervical epithelial cells. Overall, we successfully demonstrated that transforming PLA into ILs efficiently enhances its solubility in water and these formulations are not toxic to human epithelial cells. This investigation lays the groundwork for future testing of PLA ILs for their antimicrobial properties and metabolic activity within the cervicovaginal microenvironment.
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Affiliation(s)
- Phoebe Crossley
- Department of Life Sciences, University of Bath Bath UK
- Department of Obstetrics and Gynecology, College of Medicine - Phoenix, University of Arizona Phoenix AZ USA
| | - Yogesh Sutar
- Department of Pharmacology and Toxicology, R. Ken Coit College of Pharmacy, University of Arizona Tucson AZ USA
| | - Irina Tsoy
- Department of Pharmacology and Toxicology, R. Ken Coit College of Pharmacy, University of Arizona Tucson AZ USA
| | - Srushti Mukkirwar
- Department of Pharmacology and Toxicology, R. Ken Coit College of Pharmacy, University of Arizona Tucson AZ USA
| | - Paweł Łaniewski
- Department of Basic Medical Sciences, College of Medicine - Phoenix, University of Arizona Phoenix AZ USA
| | - Melissa M Herbst-Kralovetz
- Department of Basic Medical Sciences, College of Medicine - Phoenix, University of Arizona Phoenix AZ USA
- Department of Obstetrics and Gynecology, College of Medicine - Phoenix, University of Arizona Phoenix AZ USA
- University of Arizona Cancer Center, University of Arizona Tucson AZ USA
| | - Abhijit A Date
- Department of Pharmacology and Toxicology, R. Ken Coit College of Pharmacy, University of Arizona Tucson AZ USA
- University of Arizona Cancer Center, University of Arizona Tucson AZ USA
- Department of Ophthalmology and Visual Sciences, University of Arizona College of Medicine Tucson AZ USA
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3
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Xiao L, Zuo Z, Zhao F. Microbiome in Female Reproductive Health: Implications for Fertility and Assisted Reproductive Technologies. GENOMICS, PROTEOMICS & BIOINFORMATICS 2024; 22:qzad005. [PMID: 38862423 PMCID: PMC11104452 DOI: 10.1093/gpbjnl/qzad005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 06/13/2024]
Abstract
The microbiome plays a critical role in the process of conception and the outcomes of pregnancy. Disruptions in microbiome homeostasis in women of reproductive age can lead to various pregnancy complications, which significantly impact maternal and fetal health. Recent studies have associated the microbiome in the female reproductive tract (FRT) with assisted reproductive technology (ART) outcomes, and restoring microbiome balance has been shown to improve fertility in infertile couples. This review provides an overview of the role of the microbiome in female reproductive health, including its implications for pregnancy outcomes and ARTs. Additionally, recent advances in the use of microbial biomarkers as indicators of pregnancy disorders are summarized. A comprehensive understanding of the characteristics of the microbiome before and during pregnancy and its impact on reproductive health will greatly promote maternal and fetal health. Such knowledge can also contribute to the development of ARTs and microbiome-based interventions.
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Affiliation(s)
- Liwen Xiao
- CAS Key Laboratory of Systems Biology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Beijing Institutes of Life Science/Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhenqiang Zuo
- Beijing Institutes of Life Science/Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Fangqing Zhao
- CAS Key Laboratory of Systems Biology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Beijing Institutes of Life Science/Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Simoni A, Schwartz L, Junquera GY, Ching CB, Spencer JD. Current and emerging strategies to curb antibiotic-resistant urinary tract infections. Nat Rev Urol 2024:10.1038/s41585-024-00877-9. [PMID: 38714857 DOI: 10.1038/s41585-024-00877-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2024] [Indexed: 05/23/2024]
Abstract
Rising rates of antibiotic resistance in uropathogenic bacteria compromise patient outcomes and prolong hospital stays. Consequently, new strategies are needed to prevent and control the spread of antibiotic resistance in uropathogenic bacteria. Over the past two decades, sizeable clinical efforts and research advances have changed urinary tract infection (UTI) treatment and prevention strategies to conserve antibiotic use. The emergence of antimicrobial stewardship, policies from national societies, and the development of new antimicrobials have shaped modern UTI practices. Future UTI management practices could be driven by the evolution of antimicrobial stewardship, improved and readily available diagnostics, and an improved understanding of how the microbiome affects UTI. Forthcoming UTI treatment and prevention strategies could employ novel bactericidal compounds, combinations of new and classic antimicrobials that enhance bacterial killing, medications that prevent bacterial attachment to uroepithelial cells, repurposing drugs, and vaccines to curtail the rising rates of antibiotic resistance in uropathogenic bacteria and improve outcomes in people with UTI.
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Affiliation(s)
- Aaron Simoni
- The Kidney and Urinary Tract Center, Nationwide Children's Abigail Wexner Research Institute, Columbus, OH, USA
| | - Laura Schwartz
- The Kidney and Urinary Tract Center, Nationwide Children's Abigail Wexner Research Institute, Columbus, OH, USA
- Department of Pediatrics, Division of Nephrology and Hypertension, Nationwide Children's, Columbus, OH, USA
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Guillermo Yepes Junquera
- Department of Pediatrics, Division of Infectious Diseases, Nationwide Children's, Columbus, OH, USA
| | - Christina B Ching
- The Kidney and Urinary Tract Center, Nationwide Children's Abigail Wexner Research Institute, Columbus, OH, USA
- Department of Urology, Nationwide Children's, Columbus, OH, USA
| | - John David Spencer
- The Kidney and Urinary Tract Center, Nationwide Children's Abigail Wexner Research Institute, Columbus, OH, USA.
- Department of Pediatrics, Division of Nephrology and Hypertension, Nationwide Children's, Columbus, OH, USA.
- The Ohio State University College of Medicine, Columbus, OH, USA.
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Sookkhee S, Khamnoi P, Sastraruji T, Boonkum S, Wikan N, Nimlamool W. Synergistic Inhibition of Synbiotic Cultures among Lactobacilli and Plant Extracts against Vaginal Discharge Causing Candida albicans. Nutrients 2024; 16:1372. [PMID: 38732618 PMCID: PMC11085874 DOI: 10.3390/nu16091372] [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: 03/13/2024] [Revised: 04/22/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Vulvovaginal candidiasis (VVC) is the most common cause of vaginal discharge among women. The present study aimed to investigate the synergistic anticandidal effect of lactobacillus cultures supplemented with plant extracts. Among 600 isolates of lactic acid bacteria, 41 isolates exhibited inhibitory activity against Candida albicans ATCC10231. Six out of 41 cell-free supernatants demonstrated the most potent antibacterial and anticandidal activities. They also inhibited the clinical isolates of C. albicans, causing VVC and non-C. albicans. The synergistic effect between Lactobacillus crispatus 84/7 and Limosilactobacillus reuteri 89/4 was demonstrated by the lowest fractional inhibitory concentration index (FICI = 0.5). The synbiotic culture of bacterial combination, cultured with Jerusalem artichoke (H. tuberosus) extract, also exhibited the strongest inhibition against the tested C. albicans. Biofilm formation decreased after 12 h of incubation in the selected cell-free supernatants of this synbiotic culture. The anticandidal activity of crude extracts was lost after treatment with proteinase K and trypsin but not with heating conditions, suggesting that it may be a heat-stable substance. In conclusion, the combination of L. crispatus 84/7 and L. reuteri 89/4 with H. tuberosus may be a promising candidate for inhibiting Candida infection and biofilm formation, with the potential use as ingredients in vaginal biotherapeutic products.
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Affiliation(s)
- Siriwoot Sookkhee
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Phadungkiat Khamnoi
- Diagnostic Laboratory Unit, Maharaj Nakorn Chiang Mai Hospital, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Thanapat Sastraruji
- Dental Research Center, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Sathian Boonkum
- Department of Biotechnology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Nitwara Wikan
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Wutigri Nimlamool
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand
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Silao FGS, Valeriano VD, Uddström E, Falconer E, Ljungdahl PO. Diverse mechanisms control amino acid-dependent environmental alkalization by Candida albicans. Mol Microbiol 2024; 121:696-716. [PMID: 38178569 DOI: 10.1111/mmi.15216] [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: 11/24/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 01/06/2024]
Abstract
Candida albicans has the capacity to neutralize acidic growth environments by releasing ammonia derived from the catabolism of amino acids. The molecular components underlying alkalization and its physiological significance remain poorly understood. Here, we present an integrative model with the cytosolic NAD+-dependent glutamate dehydrogenase (Gdh2) as the principal ammonia-generating component. We show that alkalization is dependent on the SPS-sensor-regulated transcription factor STP2 and the proline-responsive activator Put3. These factors function in parallel to derepress GDH2 and the two proline catabolic enzymes PUT1 and PUT2. Consistently, a double mutant lacking STP2 and PUT3 exhibits a severe alkalization defect that nearly phenocopies that of a gdh2-/- strain. Alkalization is dependent on mitochondrial activity and in wild-type cells occurs as long as the conditions permit respiratory growth. Strikingly, Gdh2 levels decrease and cells transiently extrude glutamate as the environment becomes more alkaline. Together, these processes constitute a rudimentary regulatory system that counters and limits the negative effects associated with ammonia generation. These findings align with Gdh2 being dispensable for virulence, and based on a whole human blood virulence assay, the same is true for C. glabrata and C. auris. Using a transwell co-culture system, we observed that the growth and proliferation of Lactobacillus crispatus, a common component of the acidic vaginal microenvironment and a potent antagonist of C. albicans, is unaffected by fungal-induced alkalization. Consequently, although Candida spp. can alkalinize their growth environments, other fungal-associated processes are more critical in promoting dysbiosis and virulent fungal growth.
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Affiliation(s)
- Fitz Gerald S Silao
- Department of Molecular Biosciences, The Wenner-Gren Institute, Science for Life Laboratory (SciLifeLab), Stockholm University, Stockholm, Sweden
| | - Valerie Diane Valeriano
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Solna, Sweden
| | - Erika Uddström
- Department of Molecular Biosciences, The Wenner-Gren Institute, Science for Life Laboratory (SciLifeLab), Stockholm University, Stockholm, Sweden
| | - Emilie Falconer
- Department of Molecular Biosciences, The Wenner-Gren Institute, Science for Life Laboratory (SciLifeLab), Stockholm University, Stockholm, Sweden
| | - Per O Ljungdahl
- Department of Molecular Biosciences, The Wenner-Gren Institute, Science for Life Laboratory (SciLifeLab), Stockholm University, Stockholm, Sweden
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Sacinti KG, Razeghian H, Awad-Igbaria Y, Lima-Silva J, Palzur E, Vieira-Baptista P, Verstraelen H, Bornstein J. Is Vulvodynia Associated With an Altered Vaginal Microbiota?: A Systematic Review. J Low Genit Tract Dis 2024; 28:64-72. [PMID: 37963335 DOI: 10.1097/lgt.0000000000000780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
INTRODUCTION Vulvodynia is defined as vulvar pain of at least 3 months' duration, without clear identifiable cause, which may have potential associated factors. It can have a significant impact on women's quality of life due to a combination of physical pain, emotional distress, and limited treatment options. Despite affecting a considerable number of women worldwide, the causes and underlying mechanisms of vulvodynia remain poorly understood. Given the recognized association of the vaginal microbiota with various gynecologic disorders, there has been growing interest in exploring the potential role of the vaginal microbiota in the etiology of vulvodynia. This systematic review aims to evaluate the current literature on the association between the vaginal microbiota and vulvodynia. MATERIAL AND METHODS A systematic search of multiple databases, including PubMed, Scopus, Web of Science, Cochrane Library, and Ovid MEDLINE, was conducted to identify relevant peer-reviewed studies up to May 12, 2023. The following search terms were used across these databases: "vulvodynia," "vestibulodynia," "vulvar vestibulitis," "microbiome," "microbiota," and "flora." RESULTS A total of 8 case-control studies were included, the quality of which was assessed using the Newcastle-Ottawa Scale. Data extraction and synthesis were performed using a standardized protocol. In most studies, no major differences were found between the vaginal bacterial composition of women with vulvodynia and that of controls. No specific bacterial taxa were consistently associated with vulvodynia. The relationship between vaginal microbiota diversity and vulvodynia remains to be fully understood. CONCLUSIONS The role of vaginal microbiota in vulvodynia, if any, remains unclear. Because of the cross-sectional nature of the included studies, it is not possible to make any causal inferences. Further research, using larger and more diverse study populations and advanced sequencing techniques, is necessary to gain a better understanding of the potential relationship between the vaginal microbiota and vulvodynia.
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Affiliation(s)
| | | | | | - Joana Lima-Silva
- Lower Genital Tract Unit, Centro Hospitalar de São João, Porto, Portugal
| | - Eilam Palzur
- The Research Institute of Galilee Medical Center, Galilee Medical Center, Nahariya, Israel
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Abramov VM, Kosarev IV, Machulin AV, Priputnevich TV, Deryusheva EI, Panin AN, Chikileva IO, Abashina TN, Melnikov VG, Suzina NE, Nikonov IN, Akhmetzyanova AA, Khlebnikov VS, Sakulin VK, Vasilenko RN, Samoilenko VA, Gordeev AB, Sukhikh GT, Uversky VN, Karlyshev AV. Protective Properties of S-layer Protein 2 from Lactobacillus crispatus 2029 against Candida albicans Infections. Biomolecules 2023; 13:1740. [PMID: 38136611 PMCID: PMC10741940 DOI: 10.3390/biom13121740] [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: 10/10/2023] [Revised: 11/27/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023] Open
Abstract
Previously, the protective role of the S-layer protein 2 (Slp2) of the vaginal Lactobacillus crispatus 2029 (LC2029) strain against foodborne pathogens Campylobacter jejuni, Salmonella enterica serovar Enteritidis, and Escherichia coli O157:H was demonstrated. We demonstrate the new roles of the Slp2-positive LC2029 strain and soluble Slp2 against C. albicans infections. We show that LC2029 bacteria can adhere to the surface of the cervical epithelial HeLa cells, prevent their contact with C. albicans, and block yeast transition to a pathogenic hyphal form. Surface-bound Slp2 provides the ability for LC2029 to co-aggregate with various C. albicans strains, including clinical isolates. C. albicans-induced necrotizing epithelial damage is reduced by colonization with the Slp2-positive LC2029 strain. Slp2 inhibits the adhesion of various strains of C. albicans to different human epithelial cells, blocks yeast transition to a pathogenic hyphal form, and prevents the colonization and pathogenic infiltration of mucosal barriers. Only Slp2 and LC2029 bacteria stimulate the production of protective human β-defensin 3 in various epithelial cells. These findings support the anti-Candida albicans potential of the probiotic LC2029 strain and Slp2 and form the basis for further research on their ability to prevent and manage invasive Candida infections.
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Affiliation(s)
- Vyacheslav M. Abramov
- Federal Service for Veterinary and Phytosanitary Surveillance (Rosselkhoznadzor) Federal State Budgetary Institution “The Russian State Center for Animal Feed and Drug Standardization and Quality” (FGBU VGNKI), 123022 Moscow, Russia (A.N.P.)
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Health, 117997 Moscow, Russia
| | - Igor V. Kosarev
- Federal Service for Veterinary and Phytosanitary Surveillance (Rosselkhoznadzor) Federal State Budgetary Institution “The Russian State Center for Animal Feed and Drug Standardization and Quality” (FGBU VGNKI), 123022 Moscow, Russia (A.N.P.)
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Health, 117997 Moscow, Russia
| | - Andrey V. Machulin
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of Russian Academy of Science”, Russian Academy of Science, 142290 Pushchino, Russia
| | - Tatiana V. Priputnevich
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Health, 117997 Moscow, Russia
| | - Evgenia I. Deryusheva
- Institute for Biological Instrumentation, Federal Research Center “Pushchino Scientific Center for Biological Research of Russian Academy of Science”, Russian Academy of Science, 142290 Pushchino, Russia;
| | - Alexander N. Panin
- Federal Service for Veterinary and Phytosanitary Surveillance (Rosselkhoznadzor) Federal State Budgetary Institution “The Russian State Center for Animal Feed and Drug Standardization and Quality” (FGBU VGNKI), 123022 Moscow, Russia (A.N.P.)
| | - Irina O. Chikileva
- Laboratory of Cell Immunity, Blokhin National Research Center of Oncology, Ministry of Health RF, 115478 Moscow, Russia;
| | - Tatiana N. Abashina
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of Russian Academy of Science”, Russian Academy of Science, 142290 Pushchino, Russia
| | - Vyacheslav G. Melnikov
- Gabrichevsky Research Institute for Epidemiology and Microbiology, 125212 Moscow, Russia
| | - Nataliya E. Suzina
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of Russian Academy of Science”, Russian Academy of Science, 142290 Pushchino, Russia
| | - Ilia N. Nikonov
- Federal State Educational Institution of Higher Professional Education Moscow State Academy of Veterinary Medicine and Biotechnology Named after K.I. Skryabin, 109472 Moscow, Russia
| | - Anna A. Akhmetzyanova
- Federal Service for Veterinary and Phytosanitary Surveillance (Rosselkhoznadzor) Federal State Budgetary Institution “The Russian State Center for Animal Feed and Drug Standardization and Quality” (FGBU VGNKI), 123022 Moscow, Russia (A.N.P.)
| | | | - Vadim K. Sakulin
- Institute of Immunological Engineering, 142380 Lyubuchany, Russia (R.N.V.)
| | - Raisa N. Vasilenko
- Institute of Immunological Engineering, 142380 Lyubuchany, Russia (R.N.V.)
| | - Vladimir A. Samoilenko
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of Russian Academy of Science”, Russian Academy of Science, 142290 Pushchino, Russia
| | - Alexey B. Gordeev
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Health, 117997 Moscow, Russia
| | - Gennady T. Sukhikh
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Health, 117997 Moscow, Russia
| | - Vladimir N. Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA;
| | - Andrey V. Karlyshev
- Department of Biomolecular Sciences, School of Life Sciences, Chemistry and Pharmacy, Faculty of Health, Science, Social Care and Education, Kingston University London, Kingston upon Thames KT1 2EE, UK;
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Tanha FD, Rahmani Z, Rezaei Z, Asbagh FA, Ebrahimi M, Quchani SH, Feizabad E, Shahraki Z. The effect of normalizing vaginal microbiome using Lactovag in improving pregnancy outcomes in frozen embryo transfer cycles: a randomized clinical trial. Arch Gynecol Obstet 2023; 308:1587-1592. [PMID: 37596466 DOI: 10.1007/s00404-023-07147-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 07/07/2023] [Indexed: 08/20/2023]
Abstract
INTRODUCTION Successful frozen-thawed embryo transfer (FTET) depends on multiple factors among which the woman's vaginal microbiota has recently been considered important. Using probiotic products, such as Lactovag in infertile women, the vaginal microbiome can become close to the healthy status. OBJECTIVES The aim of this study was to evaluate the effect of Lactovag on normalizing vaginal microbiome, as well as its role in improving pregnancy outcomes in FTET cycles. PATIENTS AND METHODS This randomized blinded clinical trial was conducted on 103 patients undergoing Assisted Reproductive Technology (ART) treatment at a tertiary university-based hospital between January and August of 2019. In the experiment group, the vaginal suppository Lactavag was prescribed, whereas in the control group, patients did not receive any microbiome supplements. Then, the pregnancy rate was compared in the two groups. RESULTS There were no significant differences in baseline characteristics between the two study groups (p > 0.05). Positive B hCG was present in 28% (n = 26) of women, clinical pregnancy was achieved in 23.4% (n = 22) of them and fetal heart rate was detected in 21.3% (n = 20). These proportions were higher in the Lactovag group, although these differences were not significant (p > 0.05). Results showed that although transferring fetuses with grade A increased the odds of pregnancy with 1.53 (p = 0.001) folds, this ratio would be improved using Lactovag;1.68 (P value = 0.008). CONCLUSIONS It seems that the vaginal microbiota critically interplays with women's health and reproduction. A probiotic agent such as Lactovag can be useful in normalizing this environment and improving pregnancy outcomes in infertile women.
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Affiliation(s)
- Fatemeh Davari Tanha
- Department of Obstetrics and Gynecology, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Department of OBS & GYN & Reproductive Endocrinology, Vali-asr Health Research Center, Vali-asr Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohre Rahmani
- Department of Obstetrics and Gynecology, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Rezaei
- Department of Obstetrics and Gynecology, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Firouzeh Akbari Asbagh
- Department of Obstetrics and Gynecology, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahbod Ebrahimi
- Department of Obstetrics and Gynecology, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Elham Feizabad
- Department of Obstetrics and Gynecology, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Department of Community Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Shahraki
- Zabol Medicinal Plants Research Center, Zabol University of Medical Sciences, Zabol, Iran.
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10
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Gautam A, Bhowmik D, Basu S, Zeng W, Lahiri A, Huson DH, Paul S. Microbiome Metabolome Integration Platform (MMIP): a web-based platform for microbiome and metabolome data integration and feature identification. Brief Bioinform 2023; 24:bbad325. [PMID: 37771003 DOI: 10.1093/bib/bbad325] [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: 04/17/2023] [Revised: 08/12/2023] [Indexed: 09/30/2023] Open
Abstract
A microbial community maintains its ecological dynamics via metabolite crosstalk. Hence, knowledge of the metabolome, alongside its populace, would help us understand the functionality of a community and also predict how it will change in atypical conditions. Methods that employ low-cost metagenomic sequencing data can predict the metabolic potential of a community, that is, its ability to produce or utilize specific metabolites. These, in turn, can potentially serve as markers of biochemical pathways that are associated with different communities. We developed MMIP (Microbiome Metabolome Integration Platform), a web-based analytical and predictive tool that can be used to compare the taxonomic content, diversity variation and the metabolic potential between two sets of microbial communities from targeted amplicon sequencing data. MMIP is capable of highlighting statistically significant taxonomic, enzymatic and metabolic attributes as well as learning-based features associated with one group in comparison with another. Furthermore, MMIP can predict linkages among species or groups of microbes in the community, specific enzyme profiles, compounds or metabolites associated with such a group of organisms. With MMIP, we aim to provide a user-friendly, online web server for performing key microbiome-associated analyses of targeted amplicon sequencing data, predicting metabolite signature, and using learning-based linkage analysis, without the need for initial metabolomic analysis, and thereby helping in hypothesis generation.
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Affiliation(s)
- Anupam Gautam
- Algorithms in Bioinformatics, Institute for Bioinformatics and Medical Informatics, University of Tübingen, Tübingen, Germany
- International Max Planck Research School "From Molecules to Organisms", Max Planck Institute for Biology Tübingen, Tübingen, Germany
- Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infection, Tübingen, Germany
| | - Debaleena Bhowmik
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sayantani Basu
- Department of Computer Science, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
| | - Wenhuan Zeng
- Algorithms in Bioinformatics, Institute for Bioinformatics and Medical Informatics, University of Tübingen, Tübingen, Germany
- Cluster of Excellence: EXC 2064: Machine Learning: New Perspectives for Science, University of Tübingen, Tübingen, Germany
| | - Abhishake Lahiri
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Centre for Health Science and Technology, JIS Institute of Advanced Studies and Research Kolkata, JIS University, West Bengal, India
| | - Daniel H Huson
- Algorithms in Bioinformatics, Institute for Bioinformatics and Medical Informatics, University of Tübingen, Tübingen, Germany
- International Max Planck Research School "From Molecules to Organisms", Max Planck Institute for Biology Tübingen, Tübingen, Germany
- Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infection, Tübingen, Germany
| | - Sandip Paul
- Centre for Health Science and Technology, JIS Institute of Advanced Studies and Research Kolkata, JIS University, West Bengal, India
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11
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Vargas-Robles D, Romaguera J, Alvarado-Velez I, Tosado-Rodríguez E, Dominicci-Maura A, Sanchez M, Wiggin KJ, Martinez-Ferrer M, Gilbert JA, Forney LJ, Godoy-Vitorino F. The cervical microbiota of Hispanics living in Puerto Rico is nonoptimal regardless of HPV status. mSystems 2023; 8:e0035723. [PMID: 37534938 PMCID: PMC10469956 DOI: 10.1128/msystems.00357-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/26/2023] [Indexed: 08/04/2023] Open
Abstract
The cervicovaginal microbiota is influenced by host physiology, immunology, lifestyle, and ethnicity. We hypothesized that there would be differences in the cervicovaginal microbiota among pregnant, nonpregnant, and menopausal women living in Puerto Rico (PR) with and without human papillomavirus (HPV) infection and cervical cancer. We specifically wanted to determine if the microbiota is associated with variations in cervical cytology. A total of 294 women, including reproductive-age nonpregnant (N = 196), pregnant (N = 37), and menopausal (N = 61) women, were enrolled. The cervicovaginal bacteria were characterized by 16S rRNA amplicon sequencing, the HPV was genotyped with SPF10-LiPA, and cervical cytology was quantified. High-risk HPV (HR-HPV, 67.3%) was prevalent, including genotypes not covered by the 9vt HPV vaccine. Cervical lesions (34%) were also common. The cervical microbiota was dominated by Lactobacillus iners. Pregnant women in the second and third trimesters exhibited a decrease in diversity and abundance of microbes associated with bacterial vaginosis. Women in menopause had greater alpha diversity, a greater proportion of facultative and strictly anaerobic bacteria, and higher cervicovaginal pH than premenopausal women. Cervical lesions were associated with greater alpha diversity. However, no significant associations between the microbiota and HPV infection (HR or LR-HPV types) were found. The cervicovaginal microbiota of women living in Puerto Rican were either dominated by L. iners or diverse microbial communities regardless of a woman's physiological stage. We postulate that the microbiota and the high prevalence of HR-HPV increase the risk of cervical lesions among women living in PR. IMPORTANCE In the enclosed manuscript, we provide the first in-depth characterization of the cervicovaginal microbiota of Hispanic women living in Puerto Rico (PR), using a 16S rRNA approach, and include women of different physiological stages. Surprisingly we found that high-risk HPV was ubiquitous with a prevalence of 67.3%, including types not covered by the 9vt HPV vaccine. We also found highly diverse microbial communities across women groups-with a reduction in pregnant women, but dominated by nonoptimal Lactobacillus iners. Additionally, we found vaginosis-associated bacteria as Dialister spp., Gardnerella spp., Clostridium, or Prevotella among most women. We believe this is a relevant and timely article expanding knowledge on the cervicovaginal microbiome of PR women, where we postulate that these highly diverse communities are conducive to cervical disease.
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Affiliation(s)
- Daniela Vargas-Robles
- Department of Microbiology and Medical Zoology, University of Puerto Rico School of Medicine, Medical Sciences Campus, San Juan, Puerto Rico
| | - Josefina Romaguera
- Department of Obstetrics and Gynecology, University of Puerto Rico School of Medicine, Medical Sciences Campus, San Juan, Puerto Rico
| | - Ian Alvarado-Velez
- Department of Microbiology and Medical Zoology, University of Puerto Rico School of Medicine, Medical Sciences Campus, San Juan, Puerto Rico
| | - Eduardo Tosado-Rodríguez
- Department of Microbiology and Medical Zoology, University of Puerto Rico School of Medicine, Medical Sciences Campus, San Juan, Puerto Rico
| | - Anelisse Dominicci-Maura
- Department of Microbiology and Medical Zoology, University of Puerto Rico School of Medicine, Medical Sciences Campus, San Juan, Puerto Rico
| | - Maria Sanchez
- University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
| | - Kara J. Wiggin
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | | | - Jack A. Gilbert
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Larry J. Forney
- Department of Biological Sciences, University of Idaho, Moscow, Idaho, USA
| | - Filipa Godoy-Vitorino
- Department of Microbiology and Medical Zoology, University of Puerto Rico School of Medicine, Medical Sciences Campus, San Juan, Puerto Rico
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12
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Miko E, Barakonyi A. The Role of Hydrogen-Peroxide (H 2O 2) Produced by Vaginal Microbiota in Female Reproductive Health. Antioxidants (Basel) 2023; 12:antiox12051055. [PMID: 37237921 DOI: 10.3390/antiox12051055] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/18/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Female reproductive health is strongly associated with healthy vaginal microbiota, which is thought to be ensured by the dominance of certain Lactobacillus species. Lactobacilli control the vaginal microenvironment through several factors and mechanisms. One of them is their ability to produce hydrogen peroxide (H2O2). The role of Lactobacillus-derived H2O2 in the vaginal microbial community has been intensively investigated in several studies with many designs. However, results and data are controversial and challenging to interpret in vivo. Defining the underlying mechanisms responsible for a physiological vaginal ecosystem is crucial since it could directly affect probiotic treatment attempts. This review aims to summarize current knowledge on the topic, focusing on probiotic treatment possibilities.
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Affiliation(s)
- Eva Miko
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, 12 Szigeti Street, 7624 Pécs, Hungary
- Janos Szentagothai Research Centre, 20 Ifjusag Street, 7624 Pécs, Hungary
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
| | - Aliz Barakonyi
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, 12 Szigeti Street, 7624 Pécs, Hungary
- Janos Szentagothai Research Centre, 20 Ifjusag Street, 7624 Pécs, Hungary
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
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13
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Ziogou A, Ziogos E, Giannakodimos I, Giannakodimos A, Sifakis S, Ioannou P, Tsiodras S. Bacterial Vaginosis and Post-Operative Pelvic Infections. Healthcare (Basel) 2023; 11:healthcare11091218. [PMID: 37174760 PMCID: PMC10178576 DOI: 10.3390/healthcare11091218] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/18/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Bacterial vaginosis (BV) represents a condition in which the normal protective Lactobacilli, especially those that produce H2O2, are replaced by high quantities of facultative anaerobes, leading to gynecologic and obstetric post-operative complications. BV is an important cause of obstetric and gynecological adverse sequelae and it could lead to an increased risk of contracting sexually transmitted infections such as gonorrhea, genital herpes, Chlamydia, Trichomonas, and human immunodeficiency virus. Herein, we reviewed bacterial vaginosis and its association with post-operative pelvic infections. In Obstetrics, BV has been associated with increased risk of preterm delivery, first-trimester miscarriage in women undergoing in vitro fertilization, preterm premature rupture of membranes, chorioamnionitis, amniotic fluid infections, postpartum and postabortal endomyometritis as well as postabortal pelvic inflammatory disease (PID). In gynecology, BV increases the risk of post-hysterectomy infections such as vaginal cuff cellulitis, pelvic cellulitis, pelvic abscess, and PID. BV is often asymptomatic, can resolve spontaneously, and often relapses with or without treatment. The American College of Obstetricians and Gynecologists recommends testing for BV in women having an increased risk for preterm delivery. Women with symptoms should be evaluated and treated. Women with BV undergoing gynecological surgeries must be treated to reduce the frequency of post-operative pelvic infections. Metronidazole and clindamycin are the mainstays of therapy. Currently, there is no consensus on pre-surgery screening for BV; decisions are made on a case-by-case basis.
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Affiliation(s)
- Afroditi Ziogou
- School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Eleftherios Ziogos
- Department of Gynecology and Obstetrics, University Hospital of Heraklion, 71110 Heraklion, Greece
| | - Ilias Giannakodimos
- School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Alexios Giannakodimos
- School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | | | - Petros Ioannou
- School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Sotirios Tsiodras
- School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Fourth Department of Internal Medicine, Attikon General Hospital, 12462 Athens, Greece
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14
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Anglenius H, Mäkivuokko H, Ahonen I, Forssten SD, Wacklin P, Mättö J, Lahtinen S, Lehtoranta L, Ouwehand AC. In Vitro Screen of Lactobacilli Strains for Gastrointestinal and Vaginal Benefits. Microorganisms 2023; 11:microorganisms11020329. [PMID: 36838294 PMCID: PMC9967617 DOI: 10.3390/microorganisms11020329] [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: 12/28/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Traditional probiotics comprise mainly lactic acid bacteria that are safe for human use, tolerate acid and bile, and adhere to the epithelial lining and mucosal surfaces. In this study, one hundred commercial and non-commercial strains that were isolated from human feces or vaginal samples were tested with regards to overall growth in culture media, tolerance to acid and bile, hydrogen peroxide (H2O2) production, and adhesion to vaginal epithelial cells (VECs) and to blood group antigens. As a result, various of the tested lactobacilli strains were determined to be suitable for gastrointestinal or vaginal applications. Commercial strains grew better than the newly isolated strains, but tolerance to acid was a common property among all tested strains. Tolerance to bile varied considerably between the strains. Resistance to bile and acid correlated well, as did VEC adhesion and H2O2 production, but H2O2 production was not associated with resistance to bile or acid. Except for L. iners strains, vaginal isolates had better overall VEC adhesion and higher H2O2 production. Species- and strain-specific differences were evident for all parameters. Rank-ordered clustering with nine clusters was used to identify strains that were suitable for gastrointestinal or vaginal health, demonstrating that the categorization of strains for targeted health indications is possible based on the parameters that were measured in this study.
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Affiliation(s)
- Heli Anglenius
- IFF Health and Biosciences, 02460 Kantvik, Finland
- Correspondence:
| | | | | | | | | | - Jaana Mättö
- Finnish Red Cross Blood Service, 00310 Helsinki, Finland
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15
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Mashatan N, Heidari R, Altafi M, Amini A, Ommati MM, Hashemzaei M. Probiotics in vaginal health. Pathog Dis 2023; 81:ftad012. [PMID: 37286796 DOI: 10.1093/femspd/ftad012] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/28/2023] [Accepted: 06/06/2023] [Indexed: 06/09/2023] Open
Abstract
Bacterial vaginosis, a type of vaginal inflammation, can be considered the main reason for abnormal discharges of the vagina and vaginal dysbiosis during reproductive years. Epidemiological investigations of females suffering from vaginitis demonstrated that at least 30% to 50% of all women had Bacterial vaginosis (BV). One of the fields of treatment is the use of probiotics, probiotics are commonly defined as viable microorganisms (yeasts or bacteria) that can positively affect the health of their hosts. They are used in foods, notably fermented milk products, and medicine-related products. The development of new probiotic strains is aimed at more active advantageous organisms. Lactobacillus species are the dominant bacteria in a normal vagina that can decrease the pH of the vagina by the production of lactic acid. A number of lactobacilli types can produce hydrogen peroxide as well. The presence of hydrogen peroxide-induced low pH can prevent the growth of several other microorganisms. The vaginal flora of BV cases can modify by replacing the Lactobacillus species with a high density of anaerobic bacteria (i.e. Mobiluncus sp. Bacteroides sp.), Mycoplasma hominis, and Gardnerella vaginalis. More vaginal infections are treated with medications, while there is a possibility of recurrence and chronic infection because of the adverse effects on the indigenous lactobacilli. Probiotics and prebiotics have shown capacities for optimizing, maintaining, and restoring the vaginal microflora. Therefore, biotherapeutics can offer alternative approaches to reduce infections of the vagina and thus promote consumers' health.
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Affiliation(s)
- Noushin Mashatan
- Graduated, School of Applied Sciences, University of Brighton, Brighton, UK
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran
| | - Mana Altafi
- Department of Microbiology, Faculty of Biological Science and Technology, Shiraz Pardis Branch, Islamic Azad University, Shiraz, Iran
| | - Amir Amini
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran
| | - Mohammad Mehdi Ommati
- Henan Key Laboratory of Environmental and Animal Products Safety, College of Animal Science and Technology, Luoyang, Henan, China
| | - Masoud Hashemzaei
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran
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16
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Wang L, Chen J, He L, Liu H, Liu Y, Luan Z, Li H, Liu W, Luo M. Association between the vaginal and uterine microbiota and the risk of early embryonic arrest. Front Microbiol 2023; 14:1137869. [PMID: 37032888 PMCID: PMC10073571 DOI: 10.3389/fmicb.2023.1137869] [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: 01/04/2023] [Accepted: 02/23/2023] [Indexed: 04/11/2023] Open
Abstract
The aim of this study was to explore the microecological distribution and differences in the uterus and vaginal microbiome in women with early embryonic arrest and those with normal pregnancy by high-throughput sequencing. We systematically sampled the vaginal and uterine microbiomes of 56 pregnant women, namely, 38 patients with early embryonic arrest and 18 pregnant women with normal pregnancy-induced abortion. We obtained colonization data by 16S rRNA gene amplicon sequencing. In the vagina, Lactobacillus, Bacteroidetes and Helicobacter exhibited significant differences between the groups. We further found that Lactobacillus iners, Lactobacillus crispatus, Lactobacillus gasseri and Lactobacillus jensenii were the most dominant Lactobacillus species and that L. iners was significantly different between the groups. Receiver operating characteristic (ROC) curve analysis confirmed that Ensifer had the highest predictive value for early embryonic arrest. In the uterine cavity, we determined that Proteobacteria, Bacteroidetes, Firmicutes and Actinobacteria were the dominant bacteria at the phylum level and that Bacteroides, Pseudarthrobacter, Lactobacillus and Ralstonia were the dominant genera. Further classification of Lactobacillus revealed that L. iners, L. crispatus, L. gasseri, and L. jensenii were the main species. There was a significant difference in L. jensenii between the normal pregnancy group and early embryonic arrest group. Random forest analysis revealed 18 different genera in the uterus, and ROC curve analysis indicated that Candidatus Symbiobacter, Odoribacter, Blautia, Nocardioides and Ileibacterium had a certain predictive value.
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Affiliation(s)
- Li Wang
- Department of Clinical Laboratory, School of Medicine, Chengdu Women’s and Children’s Central Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Junyu Chen
- Department of Clinical Laboratory, School of Medicine, Chengdu Women’s and Children’s Central Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Lin He
- Department of Clinical Laboratory, School of Medicine, Chengdu Women’s and Children’s Central Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Hanbo Liu
- Department of Gynecology, School of Medicine, Chengdu Women’s and Children’s Central Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yan Liu
- Department of Gynecology, School of Medicine, Chengdu Women’s and Children’s Central Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Zonghui Luan
- Key Laboratory of Reproductive Medicine, Sichuan Provincial Maternity and Child Health Care Hospital, The Affiliated Women’s and Children’s Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Hong Li
- Department of Clinical Laboratory, School of Medicine, Chengdu Women’s and Children’s Central Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Weixin Liu
- Key Laboratory of Reproductive Medicine, Sichuan Provincial Maternity and Child Health Care Hospital, The Affiliated Women’s and Children’s Hospital of Chengdu Medical College, Chengdu, Sichuan, China
- Weixin Liu,
| | - Mengjun Luo
- Department of Clinical Laboratory, School of Medicine, Chengdu Women’s and Children’s Central Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- *Correspondence: Mengjun Luo,
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17
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Role of Obesity in Recurrent Vulvovaginal Symptoms and Disease. Curr Infect Dis Rep 2022. [DOI: 10.1007/s11908-022-00793-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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18
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Zhu B, Tao Z, Edupuganti L, Serrano MG, Buck GA. Roles of the Microbiota of the Female Reproductive Tract in Gynecological and Reproductive Health. Microbiol Mol Biol Rev 2022; 86:e0018121. [PMID: 36222685 PMCID: PMC9769908 DOI: 10.1128/mmbr.00181-21] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The microbiome of the female reproductive tract defies the convention that high biodiversity is a hallmark of an optimal ecosystem. Although not universally true, a homogeneous vaginal microbiome composed of species of Lactobacillus is generally associated with health, whereas vaginal microbiomes consisting of other taxa are generally associated with dysbiosis and a higher risk of disease. The past decade has seen a rapid advancement in our understanding of these unique biosystems. Of particular interest, substantial effort has been devoted to deciphering how members of the microbiome of the female reproductive tract impact pregnancy, with a focus on adverse outcomes, including but not limited to preterm birth. Herein, we review recent research efforts that are revealing the mechanisms by which these microorganisms of the female reproductive tract influence gynecologic and reproductive health of the female reproductive tract.
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Affiliation(s)
- Bin Zhu
- Microbiology & Immunology, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
- Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Zhi Tao
- Microbiology & Immunology, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
- Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, Virginia, USA
- Department of Obstetrics and Gynecology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, People’s Republic of China
| | - Laahirie Edupuganti
- Microbiology & Immunology, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
- Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Myrna G. Serrano
- Microbiology & Immunology, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
- Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Gregory A. Buck
- Microbiology & Immunology, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
- Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, Virginia, USA
- Computer Science, School of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
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19
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Aggarwal N, Kitano S, Puah GRY, Kittelmann S, Hwang IY, Chang MW. Microbiome and Human Health: Current Understanding, Engineering, and Enabling Technologies. Chem Rev 2022; 123:31-72. [PMID: 36317983 PMCID: PMC9837825 DOI: 10.1021/acs.chemrev.2c00431] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The human microbiome is composed of a collection of dynamic microbial communities that inhabit various anatomical locations in the body. Accordingly, the coevolution of the microbiome with the host has resulted in these communities playing a profound role in promoting human health. Consequently, perturbations in the human microbiome can cause or exacerbate several diseases. In this Review, we present our current understanding of the relationship between human health and disease development, focusing on the microbiomes found across the digestive, respiratory, urinary, and reproductive systems as well as the skin. We further discuss various strategies by which the composition and function of the human microbiome can be modulated to exert a therapeutic effect on the host. Finally, we examine technologies such as multiomics approaches and cellular reprogramming of microbes that can enable significant advancements in microbiome research and engineering.
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Affiliation(s)
- Nikhil Aggarwal
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, Singapore 117456, Singapore,Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore
| | - Shohei Kitano
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, Singapore 117456, Singapore,Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore
| | - Ginette Ru Ying Puah
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, Singapore 117456, Singapore,Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore,Wilmar-NUS
(WIL@NUS) Corporate Laboratory, National
University of Singapore, Singapore 117599, Singapore,Wilmar
International Limited, Singapore 138568, Singapore
| | - Sandra Kittelmann
- Wilmar-NUS
(WIL@NUS) Corporate Laboratory, National
University of Singapore, Singapore 117599, Singapore,Wilmar
International Limited, Singapore 138568, Singapore
| | - In Young Hwang
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, Singapore 117456, Singapore,Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore,Department
of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore,Singapore
Institute of Technology, Singapore 138683, Singapore
| | - Matthew Wook Chang
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, Singapore 117456, Singapore,Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore,Wilmar-NUS
(WIL@NUS) Corporate Laboratory, National
University of Singapore, Singapore 117599, Singapore,Department
of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore,E-mail:
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20
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Mora RM, Mehta P, Ziltzer R, Samplaski MK. Systematic Review: The Neovaginal Microbiome. Urology 2022; 167:3-12. [PMID: 35276200 DOI: 10.1016/j.urology.2022.02.021] [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: 11/17/2021] [Revised: 02/05/2022] [Accepted: 02/27/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To review neovaginal colonization and inflammatory patterns, and factors that may impact this. METHODS A systematic review of the neovaginal microbiome was conducted in concordance with PRISMA guidelines through October 2021. RESULTS Thirteen articles were included, totaling 458 patients. Neovaginal constructions were most commonly performed with penile and scrotal skin grafts, sigmoid segments, and peritoneal grafts. The neovaginal microflora identified were generally polymicrobial and shared similarities with the native tissue. Nine studies identified Lactobacillus: 5/6 for penile skin, 1/3 for sigmoid, 1/1 for peritoneum, and 2/3 for other graft types, suggesting that the neovagina may support Lactobacillus either innately, via rectal migration or oral probiotic supplementation. A polymicrobial, bacterial vaginosis-like environment was found in nine studies. Inflammatory markers were also described: 2/6 for penile skin, 2/3 for sigmoid, 0/1 for peritoneum, and 1/3 for other graft types. Scant data were available on the impact of postsurgical duration, oral hormones, dilating, sexual practices, or douching on the neovaginal microbiome. CONCLUSION Understanding and optimizing the polymicrobial neovaginal microenvironment may improve surgical outcomes, specifically inflammatory, pain, and infectious. Future research should focus on standardizing testing and classification systems, and treating neovaginal dysbiosis.
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Affiliation(s)
- Richard Mateo Mora
- University of Southern California Institute of Urology, 1441 Eastlake Avenue, Los Angeles, California, USA.
| | - Preeya Mehta
- University of Southern California, 1985 Zonal Avenue, Los Angeles, California, USA.
| | - Ryan Ziltzer
- University of Southern California, 1985 Zonal Avenue, Los Angeles, California, USA.
| | - Mary K Samplaski
- University of Southern California Institute of Urology, 1441 Eastlake Avenue, Los Angeles, California, USA.
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Towards a deeper understanding of the vaginal microbiota. Nat Microbiol 2022; 7:367-378. [PMID: 35246662 DOI: 10.1038/s41564-022-01083-2] [Citation(s) in RCA: 81] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 02/03/2022] [Indexed: 12/30/2022]
Abstract
The human vaginal microbiota is a critical determinant of vaginal health. These communities live in close association with the vaginal epithelium and rely on host tissues for resources. Although often dominated by lactobacilli, the vaginal microbiota is also frequently composed of a collection of facultative and obligate anaerobes. The prevalence of these communities with a paucity of Lactobacillus species varies among women, and epidemiological studies have associated them with an increased risk of adverse health outcomes. The mechanisms that drive these associations have yet to be described in detail, with few studies establishing causative relationships. Here, we review our current understanding of the vaginal microbiota and its connection with host health. We centre our discussion around the biology of the vaginal microbiota when Lactobacillus species are dominant versus when they are not, including host factors that are implicated in shaping these microbial communities and the resulting adverse health outcomes. We discuss current approaches to modulate the vaginal microbiota, including probiotics and vaginal microbiome transplants, and argue that new model systems of the cervicovaginal environment that incorporate the vaginal microbiota are needed to progress from association to mechanism and this will prove invaluable for future research.
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Zhi L, Ai D, Yong M, Bao H, Han B, Sun B, Tu Y, Er D. The effects of genital myiasis on the diversity of the vaginal microbiota in female Bactrian camels. BMC Vet Res 2022; 18:87. [PMID: 35248026 PMCID: PMC8897907 DOI: 10.1186/s12917-022-03189-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 02/23/2022] [Indexed: 12/31/2022] Open
Abstract
Background Genital myasis is one of the most important diseases that affects the reproductive organs of Bactrian camels in which can cause serious mechanical damage to the vaginal tissue. The accumulation of bacteria in the vagina of female camels can affect their health and reproductive ability. The effect of this damage is commonly manifested in the vaginal flora and vaginal mucosal immune system. Therefore, this investigation is a study of the diversity of the vaginal flora and the differences between healthy Bactrian camels and those suffering from genital myiasis. Results Vaginal microbiota samples were collected from two groups of female Bactrian camels of the same age. An Illumina MiSeq was used to sequence the 16S rRNA V3-V4 hypervariable sequence in the samples. The results showed that the vaginal microflora of the infected camels had a significantly greater operational taxonomic unit (OTU) value. According to the assessment of the alpha diversity index and the vaginal pH, the diversity index of the infected camel flora was higher than that of the normal camel flora, and the vaginal pH was lower than that of the normal camels (p < 0.01). There were no significant differences between the two groups in the abundance of dominant genera in the Bactrian camel vagina (P > 0.05), indicating that the certain stability is maintained. Conclusions Overall, this comparison revealed the differences and similarities between the vaginal microbiota of Bactrian camels in various health statues. In addition, these data provide a reference point for understanding the types of bacteria that cause genital myiasis affecting the healthy development of Bactrian camels. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03189-5.
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France MT, Fu L, Rutt L, Yang H, Humphrys MS, Narina S, Gajer PM, Ma B, Forney LJ, Ravel J. Insight into the ecology of vaginal bacteria through integrative analyses of metagenomic and metatranscriptomic data. Genome Biol 2022; 23:66. [PMID: 35232471 PMCID: PMC8886902 DOI: 10.1186/s13059-022-02635-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 02/16/2022] [Indexed: 12/13/2022] Open
Abstract
Background Vaginal bacterial communities dominated by Lactobacillus species are associated with a reduced risk of various adverse health outcomes. However, somewhat unexpectedly, many healthy women have microbiota that are not dominated by lactobacilli. To determine the factors that drive vaginal community composition we characterized the genetic composition and transcriptional activities of vaginal microbiota in healthy women. Results We demonstrate that the abundance of a species is not always indicative of its transcriptional activity and that impending changes in community composition can be predicted from metatranscriptomic data. Functional comparisons highlight differences in the metabolic activities of these communities, notably in their degradation of host produced mucin but not glycogen. Degradation of mucin by communities not dominated by Lactobacillus may play a role in their association with adverse health outcomes. Finally, we show that the transcriptional activities of L. crispatus, L. iners, and Gardnerella vaginalis vary with the taxonomic composition of the communities in which they reside. Notably, L. iners and G. vaginalis both demonstrate lower expression of their cholesterol-dependent cytolysins when co-resident with Lactobacillus spp. and higher expression when co-resident with other facultative and obligate anaerobes. The pathogenic potential of these species may depend on the communities in which they reside and thus could be modulated by interventional strategies. Conclusions Our results provide insight to the functional ecology of the vaginal microbiota, demonstrate the diagnostic potential of metatranscriptomic data, and reveal strategies for the management of these ecosystems. Supplementary Information The online version contains supplementary material available at 10.1186/s13059-022-02635-9.
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Affiliation(s)
- Michael T France
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Li Fu
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Lindsay Rutt
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Hongqiu Yang
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Michael S Humphrys
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Shilpa Narina
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Pawel M Gajer
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Bing Ma
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Larry J Forney
- Department of Biological Sciences and Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID, USA
| | - Jacques Ravel
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA.
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De Seta F, Lonnee-Hoffmann R, Campisciano G, Comar M, Verstraelen H, Vieira-Baptista P, Ventolini G, Lev-Sagie A. The Vaginal Microbiome: III. The Vaginal Microbiome in Various Urogenital Disorders. J Low Genit Tract Dis 2022; 26:85-92. [PMID: 34928258 PMCID: PMC8719503 DOI: 10.1097/lgt.0000000000000645] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE This series of articles, titled The Vaginal Microbiome (VMB), written on behalf of the International Society for the Study of Vulvovaginal Disease, aims to summarize the recent findings and understanding of the vaginal bacterial microbiota, mainly regarding areas relevant to clinicians specializing in vulvovaginal disorders. MATERIALS AND METHODS A search of PubMed database was performed, using the search terms "vaginal microbiome" with "Candida," "vaginitis," "urinary microbiome," "recurrent urinary tract infections," "sexually transmitted infections," "human immunodeficiency virus," "human papillomavirus," "nonspecific vaginitis," "vulvodynia," and "vulvovaginal symptoms." Full article texts were reviewed. Reference lists were screened for additional articles. The third article in this series describes VMB in various urogenital disorders. RESULTS Variable patterns of the VMB are found in patients with vulvovaginal candidiasis, challenging the idea of a protective role of lactobacilli. Highly similar strains of health-associated commensal bacteria are shared in both the bladder and vagina of the same individual and may provide protection against urinary tract infections. Dysbiotic VMB increases the risk of urinary tract infection. Loss of vaginal lactic acid-producing bacteria combined with elevated pH, increase the risk for sexually transmitted infections, although the exact protective mechanisms of the VMB against sexually transmitted infections are still unknown. CONCLUSIONS The VMB may constitute a biological barrier to pathogenic microorganisms. When the predominance of lactobacilli community is disrupted, there is an increased risk for the acquisition of various vaginal pathogents. Longitudinal studies are needed to describe the association between the host, bacterial, and fungal components of the VMB.
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Affiliation(s)
- Francesco De Seta
- Institute for Maternal and Child Health “IRCCS Burlo Garofolo,” Trieste, Italy
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Risa Lonnee-Hoffmann
- Department of Obstetrics and Gynecology, St Olavs University Hospital, Trondheim, Norway
- Institute for Clinical and Molecular Medicine, Norwegian University for Science and Technology, Trondheim, Norway
| | | | - Manola Comar
- Institute for Maternal and Child Health “IRCCS Burlo Garofolo,” Trieste, Italy
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Hans Verstraelen
- Department of Obstetrics & Gynaecology, Ghent University Hospital, Ghent, Belgium
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Pedro Vieira-Baptista
- Hospital Lusíadas Porto, Porto, Portugal
- Lower Genital Tract Unit, Centro Hospitalar de São João, Porto, Portugal
- LAP, a Unilabs Company, Porto, Portugal
| | - Gary Ventolini
- Department of Obstetrics and Gynecology, Distinguish University Professor, School of Medicine, Texas Tech University Health Sciences Center, Permian Basin, Odessa, TX
| | - Ahinoam Lev-Sagie
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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Microbiome-based therapeutics: Opportunity and challenges. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2022; 191:229-262. [DOI: 10.1016/bs.pmbts.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Łaniewski P, Herbst-Kralovetz MM. Bacterial vaginosis and health-associated bacteria modulate the immunometabolic landscape in 3D model of human cervix. NPJ Biofilms Microbiomes 2021; 7:88. [PMID: 34903740 PMCID: PMC8669023 DOI: 10.1038/s41522-021-00259-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/11/2021] [Indexed: 12/20/2022] Open
Abstract
Bacterial vaginosis (BV) is an enigmatic polymicrobial condition characterized by a depletion of health-associated Lactobacillus and an overgrowth of anaerobes. Importantly, BV is linked to adverse gynecologic and obstetric outcomes: an increased risk of sexually transmitted infections, preterm birth, and cancer. We hypothesized that members of the cervicovaginal microbiota distinctly contribute to immunometabolic changes in the human cervix, leading to these sequelae. Our 3D epithelial cell model that recapitulates the human cervical epithelium was infected with clinical isolates of cervicovaginal bacteria, alone or as a polymicrobial community. We used Lactobacillus crispatus as a representative health-associated commensal and four common BV-associated species: Gardnerella vaginalis, Prevotella bivia, Atopobium vaginae, and Sneathia amnii. The immunometabolic profiles of these microenvironments were analyzed using multiplex immunoassays and untargeted global metabolomics. A. vaginae and S. amnii exhibited the highest proinflammatory potential through induction of cytokines, iNOS, and oxidative stress-associated compounds. G. vaginalis, P. bivia, and S. amnii distinctly altered physicochemical barrier-related proteins and metabolites (mucins, sialic acid, polyamines), whereas L. crispatus produced an antimicrobial compound, phenyllactic acid. Alterations to the immunometabolic landscape correlate with symptoms and hallmarks of BV and connected BV with adverse women’s health outcomes. Overall, this study demonstrated that 3D cervical epithelial cell colonized with cervicovaginal microbiota faithfully reproduce the immunometabolic microenvironment previously observed in clinical studies and can successfully be used as a robust tool to evaluate host responses to commensal and pathogenic bacteria in the female reproductive tract.
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Affiliation(s)
- Paweł Łaniewski
- Department of Basic Medical Sciences, College of Medicine - Phoenix, University of Arizona, Phoenix, AZ, 85004, USA
| | - Melissa M Herbst-Kralovetz
- Department of Basic Medical Sciences, College of Medicine - Phoenix, University of Arizona, Phoenix, AZ, 85004, USA. .,Department of Obstetrics and Gynecology, College of Medicine - Phoenix, University of Arizona, Phoenix, AZ, 85004, USA.
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Abramov VM, Kosarev IV, Priputnevich TV, Machulin AV, Abashina TN, Chikileva IO, Donetskova AD, Takada K, Melnikov VG, Vasilenko RN, Khlebnikov VS, Samoilenko VA, Nikonov IN, Sukhikh GT, Uversky VN, Karlyshev AV. S-layer protein 2 of vaginal Lactobacillus crispatus 2029 enhances growth, differentiation, VEGF production and barrier functions in intestinal epithelial cell line Caco-2. Int J Biol Macromol 2021; 189:410-419. [PMID: 34437917 DOI: 10.1016/j.ijbiomac.2021.08.150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/11/2021] [Accepted: 08/18/2021] [Indexed: 12/15/2022]
Abstract
We have previously demonstrated the ability of the human vaginal strain Lactobacillus crispatus 2029 (LC2029) for strong adhesion to cervicovaginal epithelial cells, expression of the surface layer protein 2 (Slp2), and antagonistic activity against urogenital pathogens. Slp2 forms regular two-dimensional structure around the LC2029 cells,which is secreted into the medium and inhibits intestinal pathogen-induced activation of caspase-9 and caspase-3 in the human intestinal Caco-2 cells. Here, we elucidated the effects of soluble Slp2 on adhesion of proteobacteria pathogens inducing necrotizing enterocolitis (NEC), such as Escherichia coli ATCC E 2348/69, E. coli ATCC 31705, Salmonella Enteritidis ATCC 13076, Campylobacter jejuni ATCC 29428, and Pseudomonas aeruginosa ATCC 27853 to Caco-2 cells, as well as on growth promotion, differentiation, vascular endothelial growth factor (VEGF) production, and intestinal barrier function of Caco-2 cell monolayers. Slp2 acts as anti-adhesion agent for NEC-inducing proteobacteria, promotes growth of immature Caco-2 cells and their differentiation, and enhances expression and functional activity of sucrase, lactase, and alkaline phosphatase. Slp2 stimulates VEGF production, decreases paracellular permeability, and increases transepithelial electrical resistance, strengthening barrier function of Caco-2 cell monolayers. These data support the important role of Slp2 in the early postnatal development of the human small intestine enterocytes.
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Affiliation(s)
- Vyacheslav M Abramov
- Institute of Immunological Engineering, Lyubuchany 142380, Moscow Region, Russia; Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology of the Ministry of Health, Moscow 117997, Russia
| | - Igor V Kosarev
- Institute of Immunological Engineering, Lyubuchany 142380, Moscow Region, Russia; Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology of the Ministry of Health, Moscow 117997, Russia
| | - Tatiana V Priputnevich
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology of the Ministry of Health, Moscow 117997, Russia
| | - Andrey V Machulin
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Science", Pushchino 142290, Moscow Region, Russia
| | - Tatiana N Abashina
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Science", Pushchino 142290, Moscow Region, Russia
| | - Irina O Chikileva
- Institute of Immunological Engineering, Lyubuchany 142380, Moscow Region, Russia; Laboratory of Cell Immunity, Blokhin National Research, Center of Oncology Ministry of Health RF, Moscow 115478, Russia
| | | | - Kazuhide Takada
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Vyacheslav G Melnikov
- Gabrichevsky Moscow Research Institute of Epidemiology and Microbiology, Federal Service for Supervision of Consumer Rights Protection and Human Welfare, Moscow 152212, Russia
| | - Raisa N Vasilenko
- Institute of Immunological Engineering, Lyubuchany 142380, Moscow Region, Russia
| | | | - Vladimir A Samoilenko
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Science", Pushchino 142290, Moscow Region, Russia
| | - Ilya N Nikonov
- Federal State Education Institution of Higher Professional Education Moscow State Academy of Veterinary Medicine and Biotechnology named after K.I. Skryabin, Moscow 109472, Russia
| | - Gennady T Sukhikh
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology of the Ministry of Health, Moscow 117997, Russia
| | - Vladimir N Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA.
| | - Andrey V Karlyshev
- Department of Science, Engineering and Computing, Kingston University London, Kingston upon Thames KT1 2EE, UK
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Abdullatif VA, Sur RL, Eshaghian E, Gaura KA, Goldman B, Panchatsharam PK, Williams NJ, Abbott JE. Efficacy of Probiotics as Prophylaxis for Urinary Tract Infections in Premenopausal Women: A Systematic Review and Meta-Analysis. Cureus 2021; 13:e18843. [PMID: 34671514 PMCID: PMC8523083 DOI: 10.7759/cureus.18843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2021] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION Although antibiotic therapy has been the mainstay of prophylaxis and treatment of urinary tract infections (UTIs), antibacterial resistance has led to increased incidence of infections and healthcare spending in both community-acquired and nosocomial UTIs. This has led to an active exploration of alternative remedies for both the prophylaxis and treatment of UTIs, especially in women with recurrent urinary tract infections. Probiotic supplementation is one novel intervention that has been studied as a prophylactic measure in patients with UTIs. The current systematic review and meta-analysis was conducted to evaluate the efficacy of probiotics for prophylaxis in UTIs in premenopausal women. METHODS Detailed search strategies for each electronic database were developed for PubMed, EMBASE, and Scopus to identify relevant literature published between 2001-2021. RevMan 5.3 statistical software was used to analyze data in studies. The random-effects model was used for pooling the data. The risk of bias and study quality were assessed using Cochrane Collaboration's tool for assessing risk of bias in included studies. The scope of focus for this review was premenopausal adult women with a history of one or more UTI. The intervention consisted of a probiotic regimen for which the goal was to enhance the defensive microflora of the urogenital tract. Studies comparing a probiotic regimen to a placebo regimen were included. These studies' primary outcome was the proportion of women with at least one symptomatic bacterial UTI in each group (i.e., UTI recurrence rate) in the 12-month period following probiotic intervention. This study extends the work of researchers who systematically investigated the scientific literature on probiotics in the prevention of urinary tract infections with a particular focus on premenopausal women. RESULTS After screening, three parallel-group randomized-controlled trials (RCTs) were included. We estimated the overall pooled data of these three studies with a total of 284 participants to have met the predefined inclusion criteria and were therefore included in this review. The results demonstrated that probiotics did not have a significant effect in the prophylaxis of UTIs. (Risk Ratio (RR): 0.59 confidence interval (CI): 0.26, 1.33), Heterogeneity: Chi² = 6.63, df = 2 (p = 0.04); I² =70%, Test for overall effect: Z = 1.27 (p = 0.20). Conclusions: Probiotics did not demonstrate a significant benefit in reducing UTI recurrence compared to placebo in premenopausal women. However, more conclusive data is needed to determine the effect that probiotics have on strengthening the urogenital microbial barrier against pathogenic bacteria and protecting against UTI recurrence.
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Affiliation(s)
| | - Roger L Sur
- Urology, UC San Diego Health, San Diego, USA
| | - Eli Eshaghian
- Research, Western University of Health Sciences, Pomona, USA
| | - Kellie A Gaura
- Research, Western University of Health Sciences, Pomona, USA
| | | | | | | | - Joel E Abbott
- Urology, Pacific West Urology, Las Vegas, USA
- Research, Western University of Health Sciences, Pomona, USA
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Abbasi A, Aghebati-Maleki L, Homayouni-Rad A. The promising biological role of postbiotics derived from probiotic Lactobacillus species in reproductive health. Crit Rev Food Sci Nutr 2021; 62:8829-8841. [PMID: 34152234 DOI: 10.1080/10408398.2021.1935701] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Recent investigations have meaningfully developed our knowledge of the features of the reproductive microbiome/metabolome profile and their relations with host responses to offer an optimal milieu for the development of the embryo during the peri-implantation period and throughout pregnancy. In this context, the establishment of homeostatic circumstances in the Female Reproductive Tract (FRT), in various physiological periods, is a significant challenge, which appears the application of postbiotics can facilitate the achievement of this goal. So, currently, scientific literature confirms that postbiotics due to their antimicrobial, antiviral, and immunomodulatory properties can be considered as a novel biotherapeutic approach. Future investigation in this field will shed more translational mechanistic understanding of the interaction of the postbiotics derived from vaginal Lactobacilli with females' health and reproduction.
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Affiliation(s)
- Amin Abbasi
- Department of Food Science and Technology, Faculty of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Aziz Homayouni-Rad
- Department of Food Science and Technology, Faculty of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Lagenaur LA, Hemmerling A, Chiu C, Miller S, Lee PP, Cohen CR, Parks TP. Connecting the Dots: Translating the Vaginal Microbiome Into a Drug. J Infect Dis 2021; 223:S296-S306. [PMID: 33330916 PMCID: PMC8502429 DOI: 10.1093/infdis/jiaa676] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A Lactobacillus-dominated vaginal microbiota (VMB) has been associated with health and considered an important host defense mechanism against urogenital infections. Conversely, depletion of lactobacilli and increased microbial diversity, amplifies the risk of adverse gynecologic and obstetric outcomes. A common clinical condition that exemplifies dysbiosis is bacterial vaginosis (BV). BV is currently treated with antibiotics, but frequently recurs, due in part to persistent dysbiosis and failure of lactobacilli to repopulate the vagina. New treatment options are needed to address BV. The VMB is relatively simple and optimally dominated by one or several species of Lactobacillus. Lactobacillus crispatus is strongly associated with vaginal health and depleted in dysbiosis. Replenishing the dysbiotic VMB with protective L. crispatus CTV-05 is a promising approach to prevent recurrent infections and improve women's health. Here we discuss confirmation of this approach with the microbiome-based biologic drug, LACTIN-V (L. crispatus CTV-05), focusing on prevention of BV recurrence.
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Affiliation(s)
| | - Anke Hemmerling
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, California, USA
| | - Charles Chiu
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Steve Miller
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | | | - Craig R Cohen
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, California, USA
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Impact of Vaginal Estrogen on the Urobiome in Postmenopausal Women With Recurrent Urinary Tract Infection. Female Pelvic Med Reconstr Surg 2021; 28:20-26. [PMID: 33978602 DOI: 10.1097/spv.0000000000001051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to describe effects of vaginal estrogen (VE) on the urogenital microbiome in postmenopausal women with recurrent urinary tract infections (rUTIs). METHODS This is a secondary analysis of 17 participants enrolled in a randomized controlled trial of VE versus placebo on urinary tract infection recurrence in postmenopausal women with rUTIs. Paired clean-catch urine samples were collected at baseline and after 6 months of VE and sequenced using 16S rRNA gene sequencing. Sequence reads were analyzed using Quantitative Insights Into Microbial Ecology 2. Changes in α diversity, β diversity, and differentially abundant genera were measured between paired baseline and 6-month samples and between those with a urinary tract infection at 6 months (failures) and those without (successes). RESULTS Of the 17 women, 11 were successes and 6 were failures after 6 months of VE treatment. There was a significant change in α diversity from baseline to month 6 in samples overall (Kruskal-Wallis χ2 = 3.47, P = 0.037) and in the treatment success group (Yuen T = -2.53, P = 0.035). The increase in relative abundance of Lactobacillus crispatus, Lactobacillus gasseri, and Lactobacillus iners AB-1 was correlated with month 6. A relative bloom of L. crispatus compared with L. gasseri was associated with treatment success (Kruskal-Wallis χ2 = 4.9, P = 0.0014). CONCLUSIONS Lactobacillus increases in the urogenital microbiome of postmenopausal women with rUTI after 6 months of VE. However, only the relative increase in L. crispatus specifically may be associated with treatment success.
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Oral Intake of Lactobacilli Can Be Helpful in Symptomatic Bacterial Vaginosis: A Randomized Clinical Study. J Low Genit Tract Dis 2021; 24:284-289. [PMID: 32091443 DOI: 10.1097/lgt.0000000000000518] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The aim of the study was to explore a role of oral intake of a mixture of 3 Lactobacillus species in recurrence of bacterial vaginosis (BV). MATERIALS AND METHODS A phase 2 randomized parallel group prospective placebo-controlled study conducted at 7 clinical centers enrolled 18- to 45-years-old women with recent symptomatic BV cured with metronidazole. Within 48 hours after completion of metronidazole therapy, eligible women received 1 capsule of the verum (5.4 billion Lactobacillus crispatus LMG S-29995, Lactobacillus brevis, and Lactobacillus acidophilus in proportion of 60%, 20%, and 20%, respectively), or the placebo supplement 2 times daily for the first 7 days and 1 time daily for the next 8 to 120 days. The primary outcome measure was the percentage of recurrence of BV, which was defined as 3 of 4 Amsel criteria plus abnormal vaginal discharge/vulvar odor during 4 months of intake of the test dietary supplement. Differences between the groups were assessed with Z test for proportions. RESULTS One hundred sixty-six women were analyzed in the verum (82 patients) and the placebo group (82 patients). Recurrence of BV was documented in 15 (18.3%) of 82 women in the verum group and 27 (32.1%) of 84 in the placebo group (p = .014). Rates of survival without BV rates were higher in the verum group (Cox F test, p = .018). Both verum and placebo supplements were well tolerated. CONCLUSIONS Oral intake of L. crispatus LMG S-29995, L. brevis, and L. acidophilus can significantly decrease percent of recurrences of BV in recently treated women and prolong time to recurrence of the disease.
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Abstract
Postpartum uterine diseases are common in dairy cows and are a great concern for the dairy industry as they are associated with various consequences, including lower fertility, lower milk yield, and an overall negative impact on the host health. An infected uterus is a source of bacterial compounds and cytokines that spill into the systemic circulation, spreading inflammation to other organs. In this review article, we discuss a short overview of the anatomy of the reproductive tract of dairy cows and several infectious diseases of the uterus including metritis, endometritis, and pyometra. Additionally, we discuss the microbiome of the reproductive tract in health and during uterine diseases. As well, diagnostic criteria for metritis and endometritis and contributing factors for increased susceptibility to metritis infection are important topics of this review. To better understand how the uterus and reproductive tract respond to bacterial pathogens, a section of this review is dedicated to immunity of the reproductive tract. Both the innate and adaptive immunity systems are also discussed. We conclude the review with a factual discussion about the current treatments of uterine diseases and the new developments in the area of application of probiotics for uterine health. Mechanisms of actions of probiotics are discussed in detail and also some applications to prevent uterine infections in dairy cows are discussed.
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Mortensen MS, Rasmussen MA, Stokholm J, Brejnrod AD, Balle C, Thorsen J, Krogfelt KA, Bisgaard H, Sørensen SJ. Modeling transfer of vaginal microbiota from mother to infant in early life. eLife 2021; 10:57051. [PMID: 33448927 PMCID: PMC7810462 DOI: 10.7554/elife.57051] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 01/06/2021] [Indexed: 12/30/2022] Open
Abstract
Early-life microbiota has been linked to the development of chronic inflammatory diseases. It has been hypothesized that maternal vaginal microbiota is an important initial seeding source and therefore might have lifelong effects on disease risk. To understand maternal vaginal microbiota's role in seeding the child's microbiota and the extent of delivery mode-dependent transmission, we studied 665 mother-child dyads from the COPSAC2010 cohort. The maternal vaginal microbiota was evaluated twice in the third trimester and compared with the children's fecal (at 1 week, 1 month, and 1 year of age) and airway microbiota (at 1 week, 1 month, and 3 months). Based on the concept of weighted transfer ratios (WTRs), we have identified bacterial orders for which the WTR displays patterns indicate persistent or transient transfer from the maternal vaginal microbiome, as well as orders that are shared at later time points independent of delivery mode, indicating a common reservoir.
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Affiliation(s)
- Martin Steen Mortensen
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Morten Arendt Rasmussen
- Copenhagen Prospective Studies on Asthma in Childhood, Faculty of Health Sciences, University of Copenhagen, Copenhagen University Hospital Gentofte, Hellerup, Denmark.,Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Jakob Stokholm
- Copenhagen Prospective Studies on Asthma in Childhood, Faculty of Health Sciences, University of Copenhagen, Copenhagen University Hospital Gentofte, Hellerup, Denmark
| | - Asker Daniel Brejnrod
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Christina Balle
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Jonathan Thorsen
- Copenhagen Prospective Studies on Asthma in Childhood, Faculty of Health Sciences, University of Copenhagen, Copenhagen University Hospital Gentofte, Hellerup, Denmark
| | - Karen Angeliki Krogfelt
- Virus & Microbiological Special Diagnostics, Statens Serum Institut, Copenhagen, Denmark.,Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Hans Bisgaard
- Copenhagen Prospective Studies on Asthma in Childhood, Faculty of Health Sciences, University of Copenhagen, Copenhagen University Hospital Gentofte, Hellerup, Denmark
| | - Søren Johannes Sørensen
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
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Abstract
In this study, we show that multiple bacteria in the vaginal community produce amylases that hydrolyze glycogen into simpler sugars (i.e., maltose and maltotriose). These sugars serve as “common goods” that sustain bacterial populations in vaginal communities. Dominance of Lactobacillus species in vaginal communities is a hallmark of healthy conditions in the female genital tract. Key nutrients for lactobacilli include sugars produced when glycogen is degraded by α-amylase in the vagina. While α-amylase activity has been demonstrated in vaginal fluids, it is unclear whether α-amylases are produced solely by the host, bacteria in the vagina, or both. We screened cervicovaginal mucus from 23 reproductive-age women, characterized the species composition of vaginal communities, measured vaginal pH, and determined levels of amylase activity, glycogen, and lactic acid. Based on differences in these measured variables, one sample from each of four individual donors was selected for metagenomic and proteomic analyses. Of eight putative bacterial amylases identified in the assembled bacterial metagenomes, we detected four in vaginal fluids. These amylases were produced by various bacteria in different vaginal communities. Moreover, no two communities were the same in terms of which bacteria were producing amylases. Although we detected bacterial amylases in vaginal fluids, there was no clear association between the bacterial species that was dominant in a community and the level of amylase activity. This association was likely masked by the presence of human α-amylase, which was also detected in vaginal fluids. Finally, the levels of amylase activity and glycogen were only weakly associated. Our findings show, for the first time, that multiple amylases from both bacterial and human origins can be present simultaneously in the vagina. This work also suggests that the link between glycogen, amylase, and Lactobacillus in the vagina is complex. IMPORTANCE In this study, we show that multiple bacteria in the vaginal community produce amylases that hydrolyze glycogen into simpler sugars (i.e., maltose and maltotriose). These sugars serve as “common goods” that sustain bacterial populations in vaginal communities. Given the temporal changes that are observed in the human vaginal microbiome, we expect the kinds of bacterial amylases produced will also vary over time. These differences influence the pool of resources that are broadly shared and shape the species composition of the vaginal bacterial community.
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Castanheira CP, Sallas ML, Nunes RAL, Lorenzi NPC, Termini L. Microbiome and Cervical Cancer. Pathobiology 2020; 88:187-197. [PMID: 33227782 DOI: 10.1159/000511477] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/07/2020] [Indexed: 11/19/2022] Open
Abstract
Persistent infection with some types of mucosal human papillomavirus (HPV) is the etiological factor for the development of cervical cancer and its precursor lesions. Besides, several cofactors are known to play a role in cervical disease onset and progression either by favoring or by preventing HPV infection and persistence. The microbiome of a healthy female genital tract is characterized by the presence of 1 or few varieties of lactobacilli. However, high-throughput studies addressing the bacterial diversity and abundance in the female genital tract have shown that several factors, including hormonal levels, hygiene habits, and sexually transmitted diseases may disrupt the natural balance, favoring the outgrowth of some groups of bacteria, which in turn may favor some pathological states. Recently, the vaginal microbiome has emerged as a new variable that could greatly influence the natural history of HPV infections and their clinical impact. In this context, changes in the vaginal microbiome have been detected in women infected with HPV and women with HPV-associated lesions and cancer. However, the role of specific bacteria groups in the development/progression or prevention/regression of HPV-associated pathologies is not well understood. In this review we summarize the current knowledge concerning changes in vaginal microbiome and cervical disease. We discuss the potential functional interplay between specific bacterial groups and HPV infection outcomes.
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Affiliation(s)
| | - Mayara Luciana Sallas
- Innovation in Cancer Laboratory, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo Octavio Frias de Oliveira, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Rafaella Almeida Lima Nunes
- Innovation in Cancer Laboratory, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo Octavio Frias de Oliveira, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Lara Termini
- Innovation in Cancer Laboratory, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo Octavio Frias de Oliveira, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil,
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Vulvovaginal Candidosis: Current Concepts, Challenges and Perspectives. J Fungi (Basel) 2020; 6:jof6040267. [PMID: 33171784 PMCID: PMC7712750 DOI: 10.3390/jof6040267] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 02/06/2023] Open
Abstract
Vulvovaginal candidosis (VVC) is a frequently occurring infection of the lower female genital tract, mostly affecting immuno-competent women at childbearing age. Candida albicans is the most prevalent pathogenic yeast—apart from other non-albicans species—related to this fungal infection. Different virulence factors of C. albicans have been identified, which increase the risk of developing VVC. To initiate treatment and positively influence the disease course, fast and reliable diagnosis is crucial. In this narrative review, we cover the existing state of understanding of the epidemiology, pathogenesis and diagnosis of VVC. However, treatment recommendations should follow current guidelines.
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Owens CE, Daniels KM, Ealy AD, Knowlton KF, Cockrum RR. Graduate Student Literature Review: Potential mechanisms of interaction between bacteria and the reproductive tract of dairy cattle. J Dairy Sci 2020; 103:10951-10960. [PMID: 32896395 DOI: 10.3168/jds.2019-18050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 06/29/2020] [Indexed: 11/19/2022]
Abstract
Although the presence of bacteria has been characterized throughout the reproductive tracts of multiple species, how these bacteria may interact with the host has yet to be described. Previous reviews have described how pathogenic bacteria interact with the reproductive tract to cause infections such as metritis. This review aimed to summarize the knowledge related to pathogenic and nonpathogenic bacteria in various locations of the bovine reproductive tract and the possible mechanisms underlying host-microbe interactions during gametogenesis and early pregnancy. Lactic acid bacteria such as Lactobacillus seem to be beneficial in multiple areas of the reproductive tract: they have been associated with increased oocyte quality when in follicular fluid and secrete reactive oxygen species that are beneficial during placental angiogenesis. However, other bacteria, including Enterococcus, Staphylococcus, and Streptococcus, may modulate T helper cells that inhibit maternal recognition of pregnancy. Available data on the reproductive microbiome focus on variations in microbial communities and their associations with reproductive performance. However, research on these host-microbiome interactions may provide more insight on how bacteria affect fertility.
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Affiliation(s)
- C E Owens
- Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061.
| | - K M Daniels
- Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061
| | - A D Ealy
- Department of Animal and Poultry Science, Virginia Polytechnic Institute and State University, Blacksburg 24061
| | - K F Knowlton
- Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061
| | - R R Cockrum
- Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061
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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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Redelinghuys MJ, Geldenhuys J, Jung H, Kock MM. Bacterial Vaginosis: Current Diagnostic Avenues and Future Opportunities. Front Cell Infect Microbiol 2020; 10:354. [PMID: 32850469 PMCID: PMC7431474 DOI: 10.3389/fcimb.2020.00354] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 06/09/2020] [Indexed: 12/16/2022] Open
Abstract
A healthy female genital tract harbors a microbiome dominated by lactic acid and hydrogen peroxide producing bacteria, which provide protection against infections by maintaining a low pH. Changes in the bacterial compositions of the vaginal microbiome can lead to bacterial vaginosis (BV), which is often associated with vaginal inflammation. Bacterial vaginosis increases the risk of acquiring sexually transmitted infections (STIs) like human immunodeficiency virus (HIV) and affects women's reproductive health negatively. In pregnant women, BV can lead to chorioamnionitis and adverse pregnancy outcomes, including preterm premature rupture of the membranes and preterm birth. In order to manage BV effectively, good diagnostic procedures are required. Traditionally clinical and microscopic methods have been used to diagnose BV; however, these methods require skilled staff and time and suffer from reduced sensitivity and specificity. New diagnostics, including highly sensitive and specific point-of-care (POC) tests, treatment modalities and vaccines can be developed based on the identification of biomarkers from the growing pool of vaginal microbiome and vaginal metabolome data. In this review the current and future diagnostic avenues will be discussed.
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Affiliation(s)
- Mathys J. Redelinghuys
- School of Clinical Medicine, Wits Reproductive Health and HIV Institute, University of the Witwatersrand, Johannesburg, South Africa
| | - Janri Geldenhuys
- UP-Ampath Translational Genomics Initiative, Department of Biochemistry, Genetics and Microbiology, Faculty of Health Sciences and Faculty of Natural and Agricultural Sciences, Division of Genetics, University of Pretoria, Pretoria, South Africa
| | - Hyunsul Jung
- Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa
| | - Marleen M. Kock
- Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa
- Department of Medical Microbiology, Tshwane Academic Division, National Health Laboratory Service, Pretoria, South Africa
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N'Guessan Gnaman KC, Bouttier S, Yeo A, Aka Any-Grah AAS, Geiger S, Huang N, Nicolas V, Villebrun S, Faye-Kette H, Ponchel G, Koffi AA, Agnely F. Characterization and in vitro evaluation of a vaginal gel containing Lactobacillus crispatus for the prevention of gonorrhea. Int J Pharm 2020; 588:119733. [PMID: 32768529 DOI: 10.1016/j.ijpharm.2020.119733] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/31/2020] [Accepted: 08/01/2020] [Indexed: 11/26/2022]
Abstract
The increasing resistance of Neisseria gonorrhoeae to any current antibiotic treatment and the difficulties associated with the use of prevention means such as condom urge the need for alternative methods to prevent this sexually transmitted infection. In this work, a prevention strategy based on the use of a vaginal gel containing Lactobacilli was assessed in vitro. A Lactobacillus crispatus strain (ATCC 33197) was selected based on the published data on its ability to inhibit Neisseria gonorrhoeae. Its probiotic properties were first characterized. Then, a thermo-sensitive hydrogel containing 21.5% of poloxamer 407, 1% of sodium alginate and 9log10 CFU of Lactobacillus crispatus per gel sample (5 g) was developed. The gelation temperature and the rheological characteristics of this formulation appeared suitable for a vaginal administration. Lactobacillus crispatus was viable in the gel for six months although a large amount of the bacteria was not culturable. The ability of Lactobacillus crispatus to inhibit Neisseria gonorrhoeae was still observed with the gel. Such system, thus, appeared promising for the prevention of gonorrhea.
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Affiliation(s)
- K C N'Guessan Gnaman
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France; Laboratoire de Pharmacie Galénique, Cosmétologie et Législation Pharmaceutique, UFR des Sciences Pharmaceutiques et Biologiques d'Abidjan, Université Félix Houphouet-Boigny, 01 BP V 34 Abidjan 01, Côte d'Ivoire
| | - S Bouttier
- INRAE, AgroParisTech, MIcalis Institute, Équipe Bactéries pathogènes et santé, Université Paris-Saclay, 92290 Châtenay-Malabry, France
| | - A Yeo
- Institut Pasteur, Departement de microbiologie, Unité des agents du tractus génital, Abidjan, Côte d'Ivoire
| | - A A S Aka Any-Grah
- Laboratoire de Pharmacie Galénique, Cosmétologie et Législation Pharmaceutique, UFR des Sciences Pharmaceutiques et Biologiques d'Abidjan, Université Félix Houphouet-Boigny, 01 BP V 34 Abidjan 01, Côte d'Ivoire
| | - S Geiger
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France
| | - N Huang
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France
| | - V Nicolas
- Université Paris-Saclay, SFR-UMS-IPSIT, Plateforme d'imagerie cellulaire MIPSIT, 92290 Châtenay-Malabry, France
| | - S Villebrun
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France
| | - H Faye-Kette
- Institut Pasteur, Departement de microbiologie, Unité des agents du tractus génital, Abidjan, Côte d'Ivoire
| | - G Ponchel
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France
| | - A A Koffi
- Laboratoire de Pharmacie Galénique, Cosmétologie et Législation Pharmaceutique, UFR des Sciences Pharmaceutiques et Biologiques d'Abidjan, Université Félix Houphouet-Boigny, 01 BP V 34 Abidjan 01, Côte d'Ivoire
| | - F Agnely
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France.
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Gupta P, Singh MP, Goyal K. Diversity of Vaginal Microbiome in Pregnancy: Deciphering the Obscurity. Front Public Health 2020; 8:326. [PMID: 32793540 PMCID: PMC7393601 DOI: 10.3389/fpubh.2020.00326] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 06/15/2020] [Indexed: 12/12/2022] Open
Abstract
Human microbiota plays an indispensable role in physiology, nutrition and most significantly, in imparting immunity. The role of microbiota has remained cryptic for years, until recently meticulous studies revealed the interaction and dynamics of these microbial communities. This diversified state is governed by hormonal, behavioral and physio-chemical changes in the genital tract. Many inclusive studies have revealed "Lactobacillus" to be the most dominant member of vaginal flora in most of the healthy, reproductive age group and pregnant females. A total of five community state types have been described, out of which four are dominated by Lactobacillus while the fifth one by facultative or strict anaerobic species. A variation between species stability and gestational age has also been revealed. Studies have divulged a significant higher stability of vaginal microbiota in early stages of pregnancy and the same increased subsequently. Inter-species and racial variation has shown women belonging to White, Asian, and Caucasian race to harbor more of the anaerobic flora. The vaginal microbiome in pregnancy play a significant role in preterm and spontaneous labor. This Lactobacillus-rich microbiome falls tremendously, becoming more diverse in post-partum period. Apart from these known bacterial communities in human vagina, other microbial communities have also been traced. The major fragment is constituted by vaginal viral virome and very little information exists in relation to vaginal mycobiome. Studies have revealed the abundance of ds DNA viruses in vaginal microbiome, followed by ssDNA, and few unidentified viruses. The eukaryotic viruses detected were very few, with Herpesvirales, and Papillomaviridae being the only pathogenic ones. This flora is transmitted to infants either via maternal gut, vagina or breast milk. Recent studies have given an insight for vaginal microbiome, dissociating the old concept of "healthy" and "diseased." However, more extensive studies are required to study evolution of virome and mycobiome in relation to their association with bacterial communities; to establish and decode full array of vaginal virome under the influence of genotypic and environmental factors, using novel bioinformatic, multi-omic, statistical model, and CRISPR/Cas approaches.
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Riganelli L, Iebba V, Piccioni M, Illuminati I, Bonfiglio G, Neroni B, Calvo L, Gagliardi A, Levrero M, Merlino L, Mariani M, Capri O, Pietrangeli D, Schippa S, Guerrieri F. Structural Variations of Vaginal and Endometrial Microbiota: Hints on Female Infertility. Front Cell Infect Microbiol 2020; 10:350. [PMID: 32760681 PMCID: PMC7372811 DOI: 10.3389/fcimb.2020.00350] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 06/08/2020] [Indexed: 12/18/2022] Open
Abstract
Microbiota are microorganismal communities colonizing human tissues exposed to the external environment, including the urogenital tract. The bacterial composition of the vaginal microbiota has been established and is partially related to obstetric outcome, while the uterine microbiota, considered to be a sterile environment for years, is now the focus of more extensive studies and debates. The characterization of the microbiota contained in the reproductive tract (RT) of asymptomatic and infertile women, could define a specific RT microbiota associated with implantation failure. In this pilot study, 34 women undergoing personalized hormonal stimulation were recruited and the biological samples of each patient, vaginal fluid, and endometrial biopsy, were collected immediately prior to oocyte-pick up, and sequenced. Women were subsequently divided into groups according to fertilization outcome. Analysis of the 16s rRNA V4-V5 region revealed a significant difference between vaginal and endometrial microbiota. The vaginal microbiota of pregnant women corroborated previous data, exhibiting a lactobacilli-dominant habitat compared to non-pregnant cases, while the endometrial bacterial colonization was characterized by a polymicrobial ecosystem in which lactobacilli were exclusively detected in the group that displayed unsuccessful in vitro fertilization. Overall, these preliminary results revisit our knowledge of the genitourinary microbiota, and highlight a putative relationship between vaginal/endometrial microbiota and reproductive success.
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Affiliation(s)
- Lucia Riganelli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Valerio Iebba
- SSD of Advanced Microbiology Diagnosis and Translational Research, Institute for Maternal and Child Health-IRCCS "Burlo Garofolo", Trieste, Italy.,Department of Medical, Surgical and Health Sciences, Azienda Sanitaria Universitaria Giuliano Isontina (ASU GI), Trieste, Italy
| | - Mariagrazia Piccioni
- Department of Obstetrics and Gynaecology, Sapienza University of Rome, Rome, Italy
| | - Isabella Illuminati
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Giulia Bonfiglio
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Bruna Neroni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Ludovica Calvo
- Center for Life NanoScience@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | - Antonella Gagliardi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Massimo Levrero
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy.,Epigenetics and Epigenomic of Hepatocellular Carcinoma, Cancer Research Center of Lyon (CRCL), UMR Inserm 1052 - CNRS 5286, Lyon, France
| | - Lucia Merlino
- Department of Obstetrics and Gynaecology, Sapienza University of Rome, Rome, Italy
| | - Marianna Mariani
- Department of Obstetrics and Gynaecology, Sapienza University of Rome, Rome, Italy
| | - Oriana Capri
- Department of Obstetrics and Gynaecology, Sapienza University of Rome, Rome, Italy
| | - Daniela Pietrangeli
- Department of Obstetrics and Gynaecology, Sapienza University of Rome, Rome, Italy
| | - Serena Schippa
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Francesca Guerrieri
- Center for Life NanoScience@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy.,Epigenetics and Epigenomic of Hepatocellular Carcinoma, Cancer Research Center of Lyon (CRCL), UMR Inserm 1052 - CNRS 5286, Lyon, France
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Repurposing Fenamic Acid Drugs To Combat Multidrug-Resistant Neisseria gonorrhoeae. Antimicrob Agents Chemother 2020; 64:AAC.02206-19. [PMID: 32393483 DOI: 10.1128/aac.02206-19] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 05/01/2020] [Indexed: 12/24/2022] Open
Abstract
The rise of extensively drug-resistant and multidrug-resistant strains of Neisseria gonorrhoeae has occurred in parallel with the increasing demand for new drugs. However, the current methods of drug discovery are burdened with rigorous assessments and require more time than can be spared until gonococcal infections become difficult to control. To address this urgency, we utilized a drug-repurposing strategy and identified three clinically approved anthranilic acid drugs (tolfenamic acid, flufenamic acid, and meclofenamic acid) with potent antigonococcal activity, inhibiting 50% of the strains (MIC50) from 4 to 16 μg/ml. Furthermore, tolfenamic acid showed indifferent activity with antibiotics of choice for gonococcal infections, azithromycin and ceftriaxone, in checkerboard assays with a fractional inhibitory concentration index ranging from 0.75 to 1.5. Fenamic acids reduced a high inoculum of N. gonorrhoeae below the limit of detection within 12 h and exhibited a low frequency of resistance. Interestingly, the fenamic acids did not inhibit the growth of commensal Lactobacillus spp. that comprise the healthy female genital microbiota. Fenamic acids were also superior to ceftriaxone in reducing the burden of intracellular N. gonorrhoeae within infected endocervical cells by 99%. Furthermore, all three fenamic acids significantly reduced the expression of proinflammatory cytokines by infected endocervical cells. Finally, fenamic acids and other structurally related anthranilic acid derivatives were evaluated to ascertain a more in-depth structure-activity relationship (SAR) that revealed N-phenylanthranilic acid as a novel antigonorrheal scaffold. This SAR study will pave the road to repositioning more potent fenamic acids analogues against N. gonorrhoeae.
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Draft Genome Sequence of Lactobacillus mulieris UMB9245, Isolated from the Female Bladder. Microbiol Resour Announc 2020; 9:9/20/e00408-20. [PMID: 32409555 PMCID: PMC7225554 DOI: 10.1128/mra.00408-20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Lactobacillus jensenii is an anaerobic bacterium found in the urogenital tract that is known to prevent common vaginal infections. Recently, it was divided into two species, L. jensenii and L. mulieris. Here, we report the draft genome sequence of L. mulieris UMB9245, with a genome length of 1,723,383 bp assembled into 52 contigs. Lactobacillus jensenii is an anaerobic bacterium found in the urogenital tract that is known to prevent common vaginal infections. Recently, it was divided into two species, L. jensenii and L. mulieris. Here, we report the draft genome sequence of L. mulieris UMB9245, with a genome length of 1,723,383 bp assembled into 52 contigs.
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Plasma concentration of injectable contraceptive correlates with reduced cervicovaginal growth factor expression in South African women. Mucosal Immunol 2020; 13:449-459. [PMID: 31896762 DOI: 10.1038/s41385-019-0249-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 11/10/2019] [Accepted: 12/15/2019] [Indexed: 02/06/2023]
Abstract
Long-acting injectable contraceptives have been associated with mucosal immune changes and increased HIV acquisition, but studies have often been hampered by the inaccuracy of self-reported data, unknown timing of injection, and interactions with mucosal transmission co-factors. We used mass spectrometry to quantify the plasma concentrations of injectable contraceptives in women from the CAPRISA004 study (n = 664), with parallel quantification of 48 cytokines and >500 host proteins in cervicovaginal lavage. Higher DMPA levels were associated with reduced CVL concentrations of GCSF, MCSF, IL-16, CTACK, LIF, IL-1α, and SCGF-β in adjusted linear mixed models. Dose-dependent relationships between DMPA concentration and genital cytokines were frequently observed. Unsupervised clustering of host proteins by DMPA concentration suggest that women with low DMPA had increases in proteins associated with mucosal fluid function, growth factors, and keratinization. Although DMPA was not broadly pro-inflammatory, DMPA was associated with increased IP-10 in HSV-2 seropositive and older women. DMPA-cytokine associations frequently differed by vaginal microbiome; in non-Lactobacillus-dominant women, DMPA was associated with elevated IL-8, MCP-1, and IP-10 concentrations. These data confirm a direct, concentration-dependant effect of DMPA on functionally important immune factors within the vaginal compartment. The biological effects of DMPA may vary depending on age, HSV-2 status, and vaginal microbiome composition.
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Inflammatory and antimicrobial properties differ between vaginal Lactobacillus isolates from South African women with non-optimal versus optimal microbiota. Sci Rep 2020; 10:6196. [PMID: 32277092 PMCID: PMC7148372 DOI: 10.1038/s41598-020-62184-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 03/05/2020] [Indexed: 12/14/2022] Open
Abstract
Female genital tract (FGT) inflammation increases HIV infection susceptibility. Non-optimal cervicovaginal microbiota, characterized by depletion of Lactobacillus species and increased bacterial diversity, is associated with increased FGT cytokine production. Lactobacillus species may protect against HIV partly by reducing FGT inflammation. We isolated 80 lactobacilli from South African women with non-optimal (Nugent 4–10; n = 18) and optimal microbiota (Nugent 0–3; n = 14). Cytokine production by vaginal epithelial cells in response to lactobacilli in the presence and absence of Gardnerella vaginalis was measured using Luminex. Adhesion to vaginal epithelial cells, pH, D/L-lactate production and lactate dehydrogenase relative abundance were assessed. Lactobacilli from women with non-optimal produced less lactic acid and induced greater inflammatory cytokine production than those from women with optimal microbiota, with IL-6, IL-8, IL-1α, IL-1β and MIP-1α/β production significantly elevated. Overall, lactobacilli suppressed IL-6 (adjusted p < 0.001) and IL-8 (adjusted p = 0.0170) responses to G. vaginalis. Cytokine responses to the lactobacilli were inversely associated with lactobacilli adhesion to epithelial cells and D-lactate dehydrogenase relative abundance. Thus, while cervicovaginal lactobacilli reduced the production of the majority of inflammatory cytokines in response to G. vaginalis, isolates from women with non-optimal microbiota were more inflammatory and produced less lactic acid than isolates from women with optimal microbiota.
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Łaniewski P, Ilhan ZE, Herbst-Kralovetz MM. The microbiome and gynaecological cancer development, prevention and therapy. Nat Rev Urol 2020; 17:232-250. [PMID: 32071434 PMCID: PMC9977514 DOI: 10.1038/s41585-020-0286-z] [Citation(s) in RCA: 172] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2020] [Indexed: 12/16/2022]
Abstract
The female reproductive tract (FRT), similar to other mucosal sites, harbours a site-specific microbiome, which has an essential role in maintaining health and homeostasis. In the majority of women of reproductive age, the microbiota of the lower FRT (vagina and cervix) microenvironment is dominated by Lactobacillus species, which benefit the host through symbiotic relationships. By contrast, the upper FRT (uterus, Fallopian tubes and ovaries) might be sterile in healthy individuals or contain a low-biomass microbiome with a diverse mixture of microorganisms. When dysbiosis occurs, altered immune and metabolic signalling can affect hallmarks of cancer, including chronic inflammation, epithelial barrier breach, changes in cellular proliferation and apoptosis, genome instability, angiogenesis and metabolic dysregulation. These pathophysiological changes might lead to gynaecological cancer. Emerging evidence shows that genital dysbiosis and/or specific bacteria might have an active role in the development and/or progression and metastasis of gynaecological malignancies, such as cervical, endometrial and ovarian cancers, through direct and indirect mechanisms, including modulation of oestrogen metabolism. Cancer therapies might also alter microbiota at sites throughout the body. Reciprocally, microbiota composition can influence the efficacy and toxic effects of cancer therapies, as well as quality of life following cancer treatment. Modulation of the microbiome via probiotics or microbiota transplant might prove useful in improving responsiveness to cancer treatment and quality of life. Elucidating these complex host-microbiome interactions, including the crosstalk between distal and local sites, will translate into interventions for prevention, therapeutic efficacy and toxic effects to enhance health outcomes for women with gynaecological cancers.
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Affiliation(s)
- Paweł Łaniewski
- Department of Basic Medical Sciences, College of Medicine – Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Zehra Esra Ilhan
- Department of Obstetrics and Gynecology, College of Medicine – Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Melissa M. Herbst-Kralovetz
- Department of Basic Medical Sciences, College of Medicine – Phoenix, University of Arizona, Phoenix, AZ, USA,Department of Obstetrics and Gynecology, College of Medicine – Phoenix, University of Arizona, Phoenix, AZ, USA,UA Cancer Center, University of Arizona, Phoenix/Tucson, AZ, USA,Correspondence:
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Bustamante M, Oomah BD, Oliveira WP, Burgos-Díaz C, Rubilar M, Shene C. Probiotics and prebiotics potential for the care of skin, female urogenital tract, and respiratory tract. Folia Microbiol (Praha) 2020; 65:245-264. [PMID: 31773556 PMCID: PMC7090755 DOI: 10.1007/s12223-019-00759-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 11/07/2019] [Indexed: 12/27/2022]
Abstract
The prebiotics and probiotics market is constantly growing due to the positive effects of its consumption on human health, which extends beyond the digestive system. In addition, the synbiotic products market is also expanding due to the synergistic effects between pre- and probiotics that provide additional benefits to consumers. Pre- and probiotics are being evaluated for their effectiveness to treat and prevent infectious diseases in other parts of the human body where microbial communities exist. This review examines the scientific data related to the effects of pre- and probiotics on the treatment of diseases occurring in the skin, female urogenital tract, and respiratory tract. The evidence suggests that probiotics consumption can decrease the presence of eczema in children when their mothers have consumed probiotics during pregnancy and lactation. In women, probiotics consumption can effectively prevent recurrent urinary tract infections. The consumption of synbiotic products can reduce respiratory tract infections and their duration and severity. However, the outcomes of the meta-analyses are still limited and not sufficiently conclusive to support the use of probiotics to treat infectious diseases. This is largely a result of the limited number of studies, lack of standardization of the studies, and inconsistencies between the reported results. Therefore, it is advisable that future studies consider these shortcomings and include the evaluation of the combined use of pre- and probiotics.
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Affiliation(s)
- Mariela Bustamante
- Center of Food Biotechnology and Bioseparations, Scientific and Technological Bioresource Nucleus, BIOREN and Department of Chemical Engineering, Universidad de La Frontera, Ave. Francisco Salazar 01145, Box 54-D,, Temuco, Chile.
| | - B Dave Oomah
- (Retired) Formerly with the National Bioproducts and Bioprocesses Program, Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, Summerland, BC V0H 1Z0, Canada
| | - Wanderley P Oliveira
- Faculty of Pharmaceutical Sciences of Ribeirão Preto/FCFRP, Universidade de São Paulo, Ave. do Café, s/n-Bloco Q, Bairro Monte Alegre, Ribeirão Preto-SP, 14040-903,, Brazil
| | - César Burgos-Díaz
- Agriaquaculture Nutritional Genomic Center, CGNA, Las Heras 350, Temuco, Chile
| | - Mónica Rubilar
- Center of Food Biotechnology and Bioseparations, Scientific and Technological Bioresource Nucleus, BIOREN and Department of Chemical Engineering, Universidad de La Frontera, Ave. Francisco Salazar 01145, Box 54-D,, Temuco, Chile
| | - Carolina Shene
- Center of Food Biotechnology and Bioseparations, Scientific and Technological Bioresource Nucleus, BIOREN and Department of Chemical Engineering, Universidad de La Frontera, Ave. Francisco Salazar 01145, Box 54-D,, Temuco, Chile
- Centre for Biotechnology and Bioengineering (CeBiB), Universidad de La Frontera, Temuco, Chile
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Assessing a diagnosis tool for bacterial vaginosis. Eur J Clin Microbiol Infect Dis 2020; 39:1481-1485. [PMID: 32193689 DOI: 10.1007/s10096-020-03862-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 03/05/2020] [Indexed: 10/23/2022]
Abstract
Diagnosis of bacterial vaginosis (BV) in resource-poor settings relies on semiquantitative microscopy algorithm such as the Nugent score (NS). We evaluated a quantitative real-time PCR (qPCR) assay to detect and quantify individual BV-associated bacterial communities. Vaginal swabs from 247 South African women attending an STI clinic were evaluated for BV using NS. We used qPCR to analyze DNA from vaginal swabs for eight BV-associated bacteria, Gardnerella vaginalis (GV), Prevotella bivia (PB), BV-associated bacteria 2 (BVAB2), Megasphaera-1 (M-1), Atopobium vaginae (AV), Lactobacillus crispatus (LC), Lactobacillus jensenii (LJ), and Lactobacillus iners (LI). Sensitivities and specificities were generated for each qPCR assay. Using a ROC analysis, cutoffs were calculated for each bacterial species. A logistic regression model was used to determine the strongest predictors of BV status. Nugent scores indicated 35.6% of patients harbor BV-associated flora (NS 7-10). AV, GV, GAMB (GV + AV + M-1 + BVAB2), and LC + LJ showed the highest AUC, sensitivities, and specificities (listed respectively): AV (0.96; 96%; 93%), GV (0.88; 78%; 79%), GAMB (0.9; 87%; 82%), and LC + LJ (0.84; 82%; 72%) (all p < 0.05). Increased GAMB copies (effect = 0.15, p = 0.01) and decreased LC + LJ copies (effect = - 0.26, p < 0.0001) demonstrated the strongest association with higher BV scoring. Scoring of BV did not differ across our qPCR assay when compared to the commercial BD MAX® and the gold standard Nugent scores. We developed an accurate assay, which has the potential to be used as a BV diagnosis tool that is cost-effective and has the potential to be utilized in a resource limited setting.
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