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Liu P, Yang X, Zhao H, Liang L, Chen M, Yin A. High burden of human papillomavirus infection among men in Guangzhou, South China: Implications for HPV vaccination strategies. Hum Vaccin Immunother 2024; 20:2337161. [PMID: 38566539 PMCID: PMC10993917 DOI: 10.1080/21645515.2024.2337161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 03/27/2024] [Indexed: 04/04/2024] Open
Abstract
The epidemiological and clinical aspects of Human Papillomavirus (HPV) infection in women have been extensively studied. However, there is a lack of information regarding HPV characteristics in males. In this study, we conducted a retrospective and observational study of 3737 consecutive male individuals attending outpatient clinics of Guangdong Women and Children Hospital from 2012 to 2023 in Guangzhou, South China, to determine the age- and genotype-specific prevalence of HPV in men. The results showed the overall prevalence of HPV among men was 42.15% (1575/3737), with variations ranging from 29.55% to 81.31% across distinct diagnostic populations. Low-risk HPV6 (15.47%), HPV11 (8.94%), and high-risk HPV52 (5.51%) were the most common types. The annual HPV prevalence decreased significantly (Z = -3.882, p < .001), ranging from 31.44% to 52.90%. 28.77% (1075/3737) of men manifested infection with a singular HPV type, predominantly identified as a low-risk type. The age-specific distribution of HPV infections revealed distinctive peaks in the < 25 y age group (47.60%, 208/437) and the 40-44 y age group (44.51%, 154/346). Notably, the positive rate of Chlamydia trachomatis was significantly higher among HPV-positive individuals in comparison to HPV-negatives (16.14% vs. 11.25%, p < .05). Our findings reveal a substantial prevalence of HPV infection among outpatient men in Guangzhou, South China. It is recommended to consider the inclusion of HPV vaccination for adolescent males in national immunization schedules, once an adequate supply of vaccines is accessible.
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Affiliation(s)
- Pan Liu
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Xiaohan Yang
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Hongyu Zhao
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Lihua Liang
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Minchai Chen
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Aihua Yin
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
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Huynh DT, Nolfi E, Medfai L, van Ulsen P, Jong WSP, Sijts AJAM, Luirink J. Intranasal delivery of Salmonella OMVs decorated with Chlamydia trachomatis antigens induces specific local and systemic immune responses. Hum Vaccin Immunother 2024; 20:2330768. [PMID: 38517203 PMCID: PMC10962599 DOI: 10.1080/21645515.2024.2330768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 03/12/2024] [Indexed: 03/23/2024] Open
Abstract
Chlamydia trachomatis is an obligate intracellular pathogen responsible for the most prevalent bacterial sexually transmitted disease globally. The high prevalence of chlamydial infections underscores the urgent need for licensed and effective vaccines to prevent transmission in populations. Bacterial outer membrane vesicles (OMVs) have emerged as promising mucosal vaccine carriers due to their inherent adjuvant properties and the ability to display heterologous antigens. In this proof-of-concept study, we evaluated the immunogenicity of Salmonella OMVs decorated with C. trachomatis MOMP-derived CTH522 or HtrA antigens in mice. Following a prime-boost intranasal vaccination approach, two OMV-based C. trachomatis vaccines elicited significant humoral responses specific to the antigens in both systemic and vaginal compartments. Furthermore, we demonstrated strong antigen-specific IFN-γ and IL17a responses in splenocytes and cervical lymph node cells of vaccinated mice, indicating CD4+ Th1 and Th17 biased immune responses. Notably, the OMV-CTH522 vaccine also induced the production of spleen-derived CD8+ T cells expressing IFN-γ. In conclusion, these results highlight the potential of OMV-based C. trachomatis vaccines for successful use in future challenge studies and demonstrate the suitability of our modular OMV platform for intranasal vaccine applications.
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Affiliation(s)
- Dung T. Huynh
- R&D department, Abera Bioscience AB, Uppsala, Sweden
- Group of Molecular Microbiology, Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Emanuele Nolfi
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Lobna Medfai
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Peter van Ulsen
- Group of Molecular Microbiology, Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | | | - Alice J. A. M. Sijts
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Joen Luirink
- R&D department, Abera Bioscience AB, Uppsala, Sweden
- Group of Molecular Microbiology, Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Abdulabbas HT, Mohammad Ali AN, Farjadfar A, Arabfard M, Najafipour S, Kouhpayeh A, Ghasemian A, Behmard E. Design of a novel multi-epitope vaccine candidate against Chlamydia trachomatis using structural and nonstructural proteins: an immunoinformatics study. J Biomol Struct Dyn 2024; 42:4356-4369. [PMID: 37288800 DOI: 10.1080/07391102.2023.2220812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
Chlamydia trachomatis (C. trachomatis) is an obligate intracellular bacterium which causes eye and sexually transmitted infections. During pregnancy, the bacterium is associated with preterm complications, low weight of neonates, fetal demise and endometritis leading to infertility. The aim of our study was design of a multi-epitope vaccine (MEV) candidate against C. trachomatis. After protein sequence adoption from the NCBI, potential epitopes toxicity, antigenicity, allergenicity, MHC-I and MHC-II binding, cytotoxic T lymphocytes (CTLs), Helper T lymphocytes (HTLs) and interferon-γ (IFN-γ)- induction were predicted. The adopted epitopes were fused together using appropriate linkers. In the next step, the MEV structural mapping and characterization, three-dimensional (3D) structure homology modeling and refinement were also performed. The MEV candidate interaction with the toll-like receptor 4 (TLR4) was also docked. The immune responses simulation was assessed using the C-IMMSIM server. Molecular dynamic (MD) simulation verified the structural stability of the TLR4-MEV complex. The Molecular Mechanics Poisson-Boltzmann Surface Area (MMPBSA) approach demonstrated the MEV high affinity of binding to the TLR4, MHC-I and MHC-II. The MEV construct was also stable and water soluble and had enough antigenicity and lacked allergenicity with stimulation of T cells and B cells and INF-γ release. The immune simulation confirmed acceptable responses of both the humoral and cellular arms. It is proposed that in vitro and in vivo studies are needed to evaluate the findings of this study.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Hussein T Abdulabbas
- Department of Medical Microbiology, Medical College, Al Muthanna University, Al Muthanna, Iraq
| | | | - Akbar Farjadfar
- Department of medical Biotechnology, Fasa University of Medical Sciences, Fasa, Iran
| | - Masoud Arabfard
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sohrab Najafipour
- School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Amin Kouhpayeh
- Department of Pharmacology, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Abdolmajid Ghasemian
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Esmaeil Behmard
- School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
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Proctor J, Stadler M, Cortes LM, Brodsky D, Poisson L, Gerdts V, Smirnov AI, Smirnova TI, Barua S, Leahy D, Beagley KW, Harris JM, Darville T, Käser T. A TriAdj-Adjuvanted Chlamydia trachomatis CPAF Protein Vaccine Is Highly Immunogenic in Pigs. Vaccines (Basel) 2024; 12:423. [PMID: 38675805 DOI: 10.3390/vaccines12040423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Chlamydia trachomatis (Ct) infections are the most common sexually transmitted infection (STI). Despite effective antibiotics for Ct, undetected infections or delayed treatment can lead to infertility, ectopic pregnancies, and chronic pelvic pain. Besides humans, chlamydia poses similar health challenges in animals such as C. suis (Cs) in pigs. Based on the similarities between humans and pigs, as well as their chlamydia species, we use pigs as a large biomedical animal model for chlamydia research. In this study, we used the pig model to develop a vaccine candidate against Ct. The vaccine candidate consists of TriAdj-adjuvanted chlamydial-protease-like activity factor (CPAF) protein. We tested two weekly administration options-twice intranasal (IN) followed by twice intramuscular (IM) and twice IM followed by twice IN. We assessed the humoral immune response in both serum using CPAF-specific IgG (including antibody avidity determination) and also in cervical and rectal swabs using CPAF-specific IgG and IgA ELISAs. The systemic T-cell response was analyzed following in vitro CPAF restimulation via IFN-γ and IL-17 ELISpots, as well as intracellular cytokine staining flow cytometry. Our data demonstrate that while the IN/IM vaccination mainly led to non-significant systemic immune responses, the vaccine candidate is highly immunogenic if administered IM/IN. This vaccination strategy induced high serum anti-CPAF IgG levels with strong avidity, as well as high IgA and IgG levels in vaginal and rectal swabs and in uterine horn flushes. In addition, this vaccination strategy prompted a pronounced cellular immune response. Besides inducing IL-17 production, the vaccine candidate induced a strong IFN-γ response with CD4 T cells. In IM/IN-vaccinated pigs, these cells also significantly downregulated their CCR7 expression, a sign of differentiation into peripheral-tissue-homing effector/memory cells. Conclusively, this study demonstrates the strong immunogenicity of the IM/IN-administered TriAdj-adjuvanted Ct CPAF vaccine candidate. Future studies will test the vaccine efficacy of this promising Ct vaccine candidate. In addition, this project demonstrates the suitability of the Cs pre-exposed outbred pig model for Ct vaccine development. Thereby, we aim to open the bottleneck of large animal models to facilitate the progression of Ct vaccine candidates into clinical trials.
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Affiliation(s)
- Jessica Proctor
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA
| | - Maria Stadler
- Department of Biological Sciences and Pathobiology, Center of Pathobiology, Immunology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
| | - Lizette M Cortes
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA
| | - David Brodsky
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA
| | - Lydia Poisson
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA
| | - Volker Gerdts
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK S7N 5A3, Canada
| | - Alex I Smirnov
- Department of Chemistry, North Carolina State University, Raleigh, NC 27607, USA
| | - Tatyana I Smirnova
- Department of Chemistry, North Carolina State University, Raleigh, NC 27607, USA
| | - Subarna Barua
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA
| | - Darren Leahy
- Centre for Immunology and Infection Control, Queensland University of Technology, Brisbane 4000, Australia
| | - Kenneth W Beagley
- Centre for Immunology and Infection Control, Queensland University of Technology, Brisbane 4000, Australia
| | - Jonathan M Harris
- Centre for Immunology and Infection Control, Queensland University of Technology, Brisbane 4000, Australia
| | - Toni Darville
- Department of Pediatrics, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Tobias Käser
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA
- Department of Biological Sciences and Pathobiology, Center of Pathobiology, Immunology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
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Affiliation(s)
- Jun Suzuki
- Division of Infectious Diseases, Tohoku Medical and Pharmaceutical University Hospital, Japan
- Department of Infection Prevention and Control, Tohoku Medical and Pharmaceutical University Hospital, Japan
| | - Sayaka Hasekura
- Division of Gastroenterology, Tohoku Medical and Pharmaceutical University, Japan
| | - Haruka Imai
- Division of Infectious Diseases, Tohoku Medical and Pharmaceutical University Hospital, Japan
- Department of Infection Prevention and Control, Tohoku Medical and Pharmaceutical University Hospital, Japan
| | - Shiro Endo
- Division of Infectious Diseases, Tohoku Medical and Pharmaceutical University Hospital, Japan
- Department of Infection Prevention and Control, Tohoku Medical and Pharmaceutical University Hospital, Japan
- Division of Crisis Management Network for Infectious Diseases, Tohoku Medical and Pharmaceutical University, Japan
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Hybiske K, Paktinat S, Newman K, Patton D, Khosropour C, Roxby AC, Mugo NR, Oluoch L, Ngure K, Suchland R, Hladik F, Vojtech L. Antibodies from chlamydia-infected individuals facilitate phagocytosis via Fc receptors. Infect Immun 2024; 92:e0050323. [PMID: 38451079 PMCID: PMC11003224 DOI: 10.1128/iai.00503-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/16/2024] [Indexed: 03/08/2024] Open
Abstract
Non-neutralizing functions of antibodies, including phagocytosis, may play a role in Chlamydia trachomatis (CT) infection, but these functions have not been studied and assays are lacking. We utilized a flow-cytometry-based assay to determine whether serum samples from a well-characterized cohort of CT-infected and naïve control individuals enhanced phagocytosis via Fc-receptor-expressing THP-1 cells, and whether this activity correlated with antibody titers. Fc-receptor-mediated phagocytosis was detected only in CT+ donors. Phagocytosis generally did not correlate well with antibody titer. In addition, we found that complement from both CT+ and negative individuals enhanced phagocytosis of CT into primary neutrophils. These results suggest that anti-CT antibodies can have functions that are not reflected by titer. This method could be used to quantitively measure Fc-receptor-mediated function of anti-CT antibodies or complement activity and could reveal new immune correlates of protection.
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Affiliation(s)
- Kevin Hybiske
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Shahrokh Paktinat
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, USA
| | - Katherine Newman
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Dorothy Patton
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, USA
| | | | - Alison C. Roxby
- Department of Medicine, University of Washington, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Nelly R. Mugo
- Department of Global Health, University of Washington, Seattle, Washington, USA
- Centre for Clinical Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Lynda Oluoch
- Centre for Clinical Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Kenneth Ngure
- Department of Global Health, University of Washington, Seattle, Washington, USA
- School of Public Health, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | - Robert Suchland
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Florian Hladik
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, USA
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Lucia Vojtech
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, USA
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Krieger SL, Victor CK, Anderson M, Aviles D, Ehlayel AM. Multifocal lesions in a kidney allograft. Pediatr Nephrol 2024; 39:1089-1091. [PMID: 37930419 DOI: 10.1007/s00467-023-06194-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Common complications following kidney transplant include infection, rejection, and malignancy. Multiple masses in a transplanted kidney raise suspicion for malignancy. CASE PRESENTATION A 20-year-old female with chronic kidney disease stage 3 T presented with graft tenderness, acute kidney injury, and heterogeneous masses in her transplanted kidney visualized via ultrasound. She was inadequately treated for chlamydia 1 month prior and retested positive upon admission. Initial workup revealed anemia, hyperglycemia, hyperuricemia, and elevated lactate dehydrogenase. Magnetic resonance imaging revealed complex masses of varying sizes in the transplanted kidney. Biopsy grew Streptococcus agalactiae, informing the diagnosis of multiple perinephric abscesses. Additional evaluations for infectious etiology were unremarkable. Her perinephric abscesses resolved with several months of antibiotics. CONCLUSIONS Even without a clear source, serious infections may develop in kidney transplant patients who otherwise have concern for malignancy. Chlamydial infections may lead to serious intra-abdominal infections in immunocompromised patients. The inadequately treated chlamydia likely led to polymicrobial ascension of the genitourinary tract that seeded the transplanted kidney. A high index of suspicion for infection is essential in immunosuppressed patients. Biopsy is crucial for a timely diagnosis.
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Affiliation(s)
- Samantha L Krieger
- Tulane University School of Medicine, New Orleans, LA, USA.
- Children's Hospital New Orleans, New Orleans, LA, USA.
| | - Corinna K Victor
- Children's Hospital New Orleans, New Orleans, LA, USA
- Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Margot Anderson
- Tulane University School of Medicine, New Orleans, LA, USA
- Children's Hospital New Orleans, New Orleans, LA, USA
| | - Diego Aviles
- Children's Hospital New Orleans, New Orleans, LA, USA
- Louisiana State University Health Sciences Center, New Orleans, LA, USA
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Abstract
We reviewed data obtained in October 2021-May 2023 from youth who reported a history of sexual activity upon admission to 1 of 12 juvenile justice facilities in Utah, USA, that offered screening for Chlamydia trachomatis and Neisseria gonorrhoeae. Urinalysis revealed C. trachomatis positivity of 10.77%, N. gonorrhoeae positivity of 1.08%, and coinfection C. trachomatis N. gonorrhoeae) of 0.90%. Prevalence of infection was similar for youths in rural and urban facilities. A total of 12.01% of those identifying as male and 14.01% of those identifying as female tested positive for C. trachomatis, N. gonorrhoeae, or coinfection. Of young adults who tested positive, 74.65% received their results while incarcerated, all of whom accepted treatment. Our research underscores the feasibility of providing prompt C. trachomatis/N. gonorrhoeae screening and treatment in juvenile correctional facilities. The pervasiveness of infection emphasizes the urgent need for early identification and treatment for C. trachomatis and N. gonorrhoeae in incarcerated youth nationwide.
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Aguilera-Franco M, Tarriño-León M, Olivares-Durán MJ, Espadafor B, Rodríguez-Granger J, Reguera JA, Cobo F, Sampedro A, Navarro JM. Evaluation of a new CT/NG/TV/MG Real-Time PCR Kit (Vircell) versus the Allplex STI Essential Assay (Seegene) for the diagnosis of sexually transmitted infections. J Med Microbiol 2024; 73. [PMID: 38591530 DOI: 10.1099/jmm.0.001797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024] Open
Abstract
Sexually transmitted infections (STI) are a public health problem. Real-time PCR assays are the most sensitive test for screening and diagnosis of these infections. The aim of this study was to evaluate a new CT/NG/TV/MG Real-Time PCR (RT-PCR) kit (Vircell) for the detection of Chamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium and Trichomonas vaginalis for the diagnosis of sexual transmitted infections using the Allplex STI Essential Assay (Seegene) as the reference's method. A total of 497 samples from different anatomical sites (endocervical, urethral, rectal, pharyngeal and urine) were analysed from October 2022 to February 2023. A total of 108 (21.73 %) and 106 (21.33 %) positive samples were found for any of the assays used. The most commonly detected pathogen was N. gonorrhoeae (52 samples; 10.46 %), and the least commonly detected was T. vaginalis (three samples; 0.60 %). The anatomical site with the highest prevalence of micro-organisms was a non-urogenital site, the pharynx (26 positive samples; 5.23 %). Using the Allplex STI Essential Assay (Seegene) as the reference method, the diagnosis performance showed that the average specificity of CT/NG/TV/MG RT-PCR Kit (Vircell) was 99.84 % and the sensitivity was 99.53 %. The overall concordance was k=0.98 (CI95 %; 0.96-1). In conclusion, the CT/NG/TV/MG RT-PCR Kit (Vircell) assay shows a good sensitivity and specificity and constitutes a promising and additional alternative to routine procedures for distinct types of clinical specimen in diagnosis STI.
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Affiliation(s)
| | - María Tarriño-León
- Microbiology Service, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - M J Olivares-Durán
- Clinical Analysis Service, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Beatriz Espadafor
- Dermatology Service, Centro de ETS, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | | | - Juan Antonio Reguera
- Microbiology Service, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Fernando Cobo
- Microbiology Service, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Antonio Sampedro
- Microbiology Service, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - José María Navarro
- Microbiology Service, Hospital Universitario Virgen de las Nieves, Granada, Spain
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Wu TY, Lin KY, Su LH, Sun HY, Huang YS, Liu WD, Liu WC, Chang LH, Chang SY, Hung CC. Sexually transmitted coinfections among at-risk HIV-positive MSM: implications for optimal preemptive treatment. Front Med (Lausanne) 2024; 11:1328589. [PMID: 38560383 PMCID: PMC10978595 DOI: 10.3389/fmed.2024.1328589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
Background Concurrent sexually transmitted infections (STIs) are common in sexually active populations. We aimed to estimate the prevalence and coinfection rates of bacterial STIs among sexually active, HIV-positive men who have sex with men (MSM), and to assess the potential benefits of different combination treatment regimens in managing concurrent bacterial STIs. Methods From September 2021 to September 2023, HIV-positive MSM underwent STI testing when they had symptoms suggestive of STIs or recently acquired hepatitis C virus (HCV) infection or early syphilis. The oral rinse, rectal swab, and urethral swab specimens were tested for Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma spp., Ureaplasma spp., and Trichomonas vaginalis with the use of multiplex real-time polymerase-chain-reaction assays. The estimated coinfection rates were used to evaluate the benefits of different combination treatment regimens for managing coinfections. Results During the study period, 535 participants (median age, 37 years; and CD4 count, 615 cells/mm3) were enrolled. On their first visits, at least one bacterial pathogen was detected in 57.9% and concomitant bacterial infections were found in 32.9% of the participants. The most commonly identified pathogen was U. urealyticum (36.3%), followed by C. trachomatis (22.8%), and N. gonorrhoeae (19.8%). The factors associated with any bacterial STIs included older age (per 1-year increase, adjusted odds ratio [AOR], 0.97; 95% confidence interval [CI], 0.95-1.00), early syphilis (AOR, 1.87; 95% CI, 1.22-2.84), and having more than 5 sex partners in the preceding 3 months (AOR, 2.08, 95% CI, 1.07-4.06). A combination therapy of benzathine penicillin G with a 7-day course of doxycycline could simultaneously treat 27.1% of C. trachomatis coinfections in participants with early syphilis, while a combination therapy of ceftriaxone with doxycycline could simultaneously treat 40.6% of chlamydial coinfections in participants with gonorrhea. Conclusion Bacterial STIs were prevalent and concomitant infections were not uncommon among sexually active, HIV-positive MSM, supporting regular screening for bacterial STIs. The effectiveness of preemptive use of doxycycline as combination therapy for concurrent STIs warrants more investigations.
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Affiliation(s)
- Tzong-Yow Wu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan
| | - Kuan-Yin Lin
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Li-Hsin Su
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsin-Yun Sun
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Shan Huang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wang-Da Liu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Wen-Chun Liu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Lan-Hsin Chang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Sui-Yuan Chang
- Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chien-Ching Hung
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan
- Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
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Basu A, Biswas J, Singh S, Gupta V, Dhawan B. Chronic sexually acquired reactive arthritis secondary to Chlamydiatrachomatis. Indian J Med Microbiol 2024; 48:100561. [PMID: 38458336 DOI: 10.1016/j.ijmmb.2024.100561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/13/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Reactive arthritis is included in the spectrum of seronegative spondyloarthritides, occurring secondary to triggers of genitourinary and gastrointestinal tract infections. We describe two cases of sexually acquired reactive arthritis secondary to genital infection by Chlamydia trachomatis, diagnosed by in-house polymerase chain reaction performed on the first void urine. Both patients were managed with a combined approach of short course antibiotics, immunosuppressive agents, biologicals and surgical intervention.
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Affiliation(s)
- Arkendu Basu
- Department of Microbiology and Medicine, All India Institute of Medical Sciences, New Delhi, India.
| | - Jaya Biswas
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India.
| | - Saurabh Singh
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India.
| | - Vishal Gupta
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India.
| | - Benu Dhawan
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India.
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Sánchez D, Ferrer J, Giménez E, Torres I, Carretero D, Alcaraz MJ, Castaño MJ, Navarro D, Albert E. Genotypic study of Chlamydia trachomatis for lymphogranuloma venereum diagnosis in rectal specimens from men who have sex with men: a cost-effectiveness analysis. BMC Infect Dis 2024; 24:298. [PMID: 38454329 PMCID: PMC10918947 DOI: 10.1186/s12879-024-09185-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 02/29/2024] [Indexed: 03/09/2024] Open
Abstract
PURPOSE The significant proportion of asymptomatic patients and the scarcity of genotypic analysis of lymphogranuloma venereum (LGV), mainly among men who have sex with men (MSM), triggers a high incidence of underdiagnosed patients, highlighting the importance of determining the most appropriate strategy for LGV diagnosis, at both clinical and economical levels. MATERIALS AND METHODS We conducted L1-L3 serovar detection by molecular biology in stored Chlamydia trachomatis-positive samples from MSM patients with HIV, another STI or belonging to a Pre-exposure prophylaxis program, to make a cost effectiveness study of four diagnostic strategies with a clinical, molecular, or mixed approach. RESULTS A total of 85 exudates were analyzed: 35urethral (31 symptomatic/4 positive) and 50 rectal (22 symptomatic/25 positive), 70/85 belonging to MSM with associated risk factors. The average cost per patient was €77.09 and €159.55 for clinical (Strategy I) and molecular (Strategy IV) strategies respectively. For molecular diagnosis by genotyping of all rectal exudate samples previously positive for CT (Strategy II), the cost was €123.84. For molecular diagnosis by genotyping of rectal and/or urethral exudate samples from all symptomatic patients (proctitis or urethritis) with a previous positive result for CT (Strategy III), the cost was €129.39. The effectiveness ratios were 0.80, 0.95, 0.91, and 1.00 for each strategy respectively. The smallest ICER was €311.67 for Strategy II compared to Strategy I. CONCLUSIONS With 30% asymptomatic patients, the most cost-effective strategy was based on genotyping all rectal exudates. With less restrictive selection criteria, thus increasing the number of patients with negative results, the most sensitive strategies tend to be the most cost-effective, but with a high incremental cost-effectiveness ratio.
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Affiliation(s)
- David Sánchez
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain
| | - Josep Ferrer
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain
| | - Estela Giménez
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain
| | - Ignacio Torres
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain
| | - Diego Carretero
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain
| | - María Jesús Alcaraz
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain
| | - María Jesús Castaño
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain
| | - David Navarro
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain
- Department of Microbiology, School of Medicine, University of Valencia, Valencia, Spain
| | - Eliseo Albert
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research institute, Valencia, Spain.
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Pflüger LS, Nörz D, Grunwald M, Pfefferle S, Giersch K, Christner M, Weber B, Aepfelbacher M, Rohde H, Lütgehetmann M. Analytical and clinical validation of a multiplex PCR assay for detection of Neisseria gonorrhoeae and Chlamydia trachomatis including simultaneous LGV serotyping on an automated high-throughput PCR system. Microbiol Spectr 2024; 12:e0275623. [PMID: 38345391 PMCID: PMC10913481 DOI: 10.1128/spectrum.02756-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 01/08/2024] [Indexed: 03/06/2024] Open
Abstract
For effective infection control measures for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG), a reliable tool for screening and diagnosis is essential. Here, we aimed to establish and validate a multiplex PCR assay on an automated system using a dual-target approach for the detection of CT/NG and differentiation between lymphogranuloma venereum (LGV) and non-LGV from genital and extra-genital specimens. Published primer/probe sets (CT: pmpH, cryptic plasmid; NG: porA, opa) were modified for the cobas 5800/6800/8800. Standards quantified by digital PCR were used to determine linearity and lower limit of detection (LLoD; eSwab, urine). For clinical validation, prospective samples (n = 319) were compared with a CE-marked in vitro diagnostics (CE-IVD) assay. LLoDs ranged from 21.8 to 244 digital copies (dcp)/mL and 10.8 to 277 dcp/mL in swab and urine, respectively. A simple linear regression analysis yielded slopes ranging from -4.338 to -2.834 and Pearson correlation coefficients from 0.956 to 0.994. Inter- and intra-run variability was <0.5 and <1 cycle threshold (ct), respectively. No cross-reactivity was observed (n = 42). Clinical validation showed a sensitivity of 94.74% (95% confidence interval (CI): 87.23%-97.93%) and 95.51% (95% CI: 89.01%-98.24%), a specificity of 99.59% (95% CI: 97.71%-99.98%) and 99.57% (95% CI: 97.58%-99.98%), positive predictive values of 89.91% (estimated prevalence: 3.7%; 95% CI: 80.91%-95.6%) and 88.61% (estimated prevalence: 3.4%; 95% CI: 80.18%-94.34%), and negative predictive values of 99.81% (95% CI: 98.14%-100%) and 99.85% (95% CI: 98.14%-100%) for the detection of CT and NG, respectively. In conclusion, we established a dual-target, internally controlled PCR on an automated system for the detectiwon of CT/NG from genital and extra-genital specimens. Depending on local regulations, the assay can be used as a screening or a confirmatory/typing assay.IMPORTANCEChlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) represent a major global health burden, with the World Health Organization estimating that >128 million and >82 million people, respectively, were newly infected in 2020. For effective infection control measures, a reliable tool for sensitive diagnosis and screening of CT/NG is essential. We established a multiplex PCR assay for the detection of CT/NG and simultaneous discrimination between lymphogranuloma venereum (LGV) and non-LGV strains, which has been validated for genital and extra-genital specimens on a fully automated system. To increase assay sensitivity, a dual-target approach has been chosen for both pathogens. This strategy reduces false-positive results in oropharyngeal swabs due to the detection of commensal N. species that may harbor NG DNA fragments targeted in the PCR due to horizontal gene transmission following previous infection. In sum, the established assay provides a powerful tool for use as either a screening/diagnostic or a typing/confirmatory assay.
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Affiliation(s)
- Lisa Sophie Pflüger
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Dominik Nörz
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Moritz Grunwald
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Susanne Pfefferle
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Katja Giersch
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Martin Christner
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Beatrice Weber
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Martin Aepfelbacher
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Holger Rohde
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
- German Center for Infection Research (DZIF), Hamburg-Lübeck-Borstel-Riems Site, Hamburg, Germany
| | - Marc Lütgehetmann
- Center for Diagnostics, Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
- German Center for Infection Research (DZIF), Hamburg-Lübeck-Borstel-Riems Site, Hamburg, Germany
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Chromy D, Sadoghi B, Gasslitter I, Skocic M, Okoro A, Grabmeier-Pfistershammer K, Willinger B, Weninger W, Öllinger A, Sarcletti M, Stary G, Bauer WM. Lymphogranuloma venereum verläuft häufig asymptomatisch bei Männern, die Sex mit Männern haben, in Österreich. J Dtsch Dermatol Ges 2024; 22:389-398. [PMID: 38450885 DOI: 10.1111/ddg.15329_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 11/14/2023] [Indexed: 03/08/2024]
Abstract
ZusammenfassungHintergrund und ZieleLymphogranuloma venereum (LGV) ist eine sexuell übertragene Erkrankung verursacht durch Chlamydia trachomatis (CT), Serovar L1–L3. Eine Zunahme von LGV ist vorwiegend bei Männern, die Sex mit Männern haben (MSM), beobachtet worden. Die Unterscheidung zwischen LGV und Nicht‐LGV‐Serovaren hat therapeutische Konsequenzen, daher wurden Prävalenz und Charakteristika von LGV innerhalb aller CT‐Infektionen untersucht.Patienten und MethodikAlle CT‐positiven Befunde, erhoben an den vier größten österreichischen HIV‐ und STI‐Kliniken von 04/2014–12/2021, wurden hinsichtlich Charakteristika der Erkrankung und Demographie der Patienten ausgewertet.ErgebnisseInsgesamt wurden n = 2083 CT‐Infektionen bei n = 1479 Personen dokumentiert. Das mediane Alter betrug 31,4 Jahre, 81% waren männlich, 59% MSM, 44% HIV‐positiv, 13% nutzten HIV‐Prä‐Expositionsprophylaxe. Serovaranalysen waren bei 61% (1258/2083) verfügbar, wobei L1–L3 in 15% (192/1258) aller Fälle nachgewiesen wurde. Bei MSM mit rektaler CT‐Infektion waren 23% (101/439) LGV. LGV‐Fälle verglichen mit CT‐Infektionen traten vermehrt bei MSM (92% [177/192] vs. 62% [1179/1891], p < 0,001), HIV‐Positivität (64% [116/180] vs. 46% [631/1376]; p < 0,001) und konkomitanter Syphilisinfektion (18% [32/180] vs. 7% [52/749]; p < 0,001) auf. LGV‐Infektionen verliefen zumeist asymptomatisch (45% [87/192]), gefolgt von Proktitis (38% [72/192]).SchlussfolgerungenLymphogranuloma venereum machte 23% der rektalen CT‐Infektionen bei MSM aus und 45% aller LGV‐Fälle waren asymptomatisch. Bei fehlender CT‐Serovar‐Analyse sollte in Risikopopulationen eine erhöhte LGV‐Prävalenz in Betracht gezogen und bei der empirischen Therapiedauer berücksichtigt werden.
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Affiliation(s)
- David Chromy
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
| | - Birgit Sadoghi
- Universitätsklinik für Dermatologie, Venerologie, Medizinische Universität Graz, Graz, Österreich
| | - Irina Gasslitter
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Mattias Skocic
- Universitätsklinik für Dermatologie und Venerologie, Kepler Universitätsklinikum, Linz, Österreich
| | - Anthony Okoro
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
| | | | - Birgit Willinger
- Abteilung für Klinische Mikrobiologie, Klinisches Institut für Labormedizin, Medizinische Universität Wien, Wien, Österreich
| | - Wolfgang Weninger
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
| | - Angela Öllinger
- Universitätsklinik für Dermatologie und Venerologie, Kepler Universitätsklinikum, Linz, Österreich
| | - Mario Sarcletti
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Georg Stary
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
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15
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Vodstrcil LA, Htaik K, Plummer EL, De Petra V, Sen MG, Williamson DA, Ong JJ, Wu J, Owlad M, Murray G, Chow EP, Fairley CK, Bradshaw CS. Near-to-patient-testing to inform targeted antibiotic use for sexually transmitted infections in a public sexual health clinic: the NEPTUNE cohort study. Lancet Reg Health West Pac 2024; 44:101005. [PMID: 38292654 PMCID: PMC10825687 DOI: 10.1016/j.lanwpc.2023.101005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/04/2023] [Accepted: 12/27/2023] [Indexed: 02/01/2024]
Abstract
Background Empiric treatment of sexually transmitted infections can cause unnecessary antibiotic use. We determined if near-to-patient-testing (NPT) for Neisseria gonorrhoeae, Chlamydia trachomatis and Mycoplasma genitalium (MG) improved antibiotic-use for a range of clinical presentations. Methods Clients attending with non-gonococcal urethritis (NGU), proctitis, as STI-contacts, or for an MG-test-of-cure (MG-TOC) between March and December 2021 were recruited. Participants received near-to-patient-testing (NPT-group) for the three STIs using the GeneXpert® System (Cepheid), and concurrent routine-testing by transcription-mediated-amplification (TMA; Aptima, Hologic). Antibiotic-use among NGU or proctitis cases in the NPT-group was compared to clinic-controls undergoing routine-testing only. The proportion in the NPT-group who notified partners <24 hrs of their STI-specific result was calculated. Findings Among 904 consults by 808 NPT-participants, ≥1 STI was detected in 63/252 (25.0%) with NGU, 22/51 (43.1%) with proctitis, and 167/527 (31.7%) STI-contacts. MG was detected among 35/157 (22.3%) MG-TOC consults. Among NGU and proctitis cases, fewer in the NPT-group received empiric treatment compared to clinic-controls (29.4% [95% CI: 24.3-34.9%] vs 83.8% [95% CI: 79.2-87.8%], p < 0.001), resulting in more NPT-group cases appropriately treated (STI-specific drug/no drug appropriately; 80.9% [95% CI: 76.0-85.1%] vs 33.0% [95% CI: 27.7-38.6%], p < 0.001) and fewer mistreated (incorrect drug/treated but pathogen-negative; 17.8% [13.7-22.6%] vs 61.4% [55.6-66.9%], p < 0.001). Of 167/264 in the NPT-group with an STI who responded regarding partner-notification, 95.2% notified all/some partners; 85.9% notified them <24 hrs of the STI-specific result. Interpretation Near-to-patient-testing significantly improved antibiotic use and a high proportion of individuals rapidly notified partners of STI-specific results, highlighting the broad benefits of timely diagnostic strategies for STIs in clinical decision making and partner notification. Funding ARC ITRP Hub-grant; NHMRC.
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Affiliation(s)
- Lenka A. Vodstrcil
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Kay Htaik
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
| | - Erica L. Plummer
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
| | - Vesna De Petra
- Microbiological Diagnostic Unit Public Health Laboratory, Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity at the University of Melbourne, Melbourne, Victoria, Australia
| | - Melodi G. Sen
- Microbiological Diagnostic Unit Public Health Laboratory, Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity at the University of Melbourne, Melbourne, Victoria, Australia
| | - Deborah A. Williamson
- Department of Microbiology, Royal Melbourne Hospital, Melbourne, Australia
- Victorian Infectious Diseases Reference Laboratory, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Jason J. Ong
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
| | - Jason Wu
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
| | - Monica Owlad
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
| | - Gerald Murray
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Women's Centre for Infectious Diseases, The Royal Women's Hospital, Parkville, Victoria, Australia
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, Victoria, Australia
| | - Eric P.F. Chow
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Christopher K. Fairley
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
| | - Catriona S. Bradshaw
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
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Omosigho PO, Ajide TE, Izevbuwa OE, Okesanya OJ, Oladejo JM, Uyigue PO. Seroprevalence of Chlamydia trachomatis and associated risk factors among HIV positive women in North Central Nigeria. Infez Med 2024; 32:52-60. [PMID: 38456033 PMCID: PMC10917553 DOI: 10.53854/liim-3201-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/08/2024] [Indexed: 03/09/2024]
Abstract
Introduction Chlamydia trachomatis infection is among the STDs that are known to increase the risk of HIV infection. The present study aims to determine the seroprevalence of C. trachomatis among HIV positive women in Ilorin and Offa, Kwara State, North Central Nigeria. Methods Serum samples from 400 HIV positive women attending the HAART Clinic in Offa and the Ilorin General Hospital in Kwara State, Nigeria, were screened using Enzyme Linked Immunosorbent Assay (ELISA), utilizing the immunocomb Chlamydia IgG test kit (Calbiotech, El Cajon, CA, USA) to check for the existence of anti-C. trachomatis antibodies. Result Anti-C. trachomatis antibodies were present in 92 (23.0%) of the 400 HIV positive women samples. There was a higher prevalence among the age group 36-40 years. Hence, age groupings were statistically and significantly associated (p=0.001) with the seroprevalence of C. trachomatis among HIV positive women. Married HIV positive women (60.9%) had the highest prevalence of C. trachomatis, with a statistically significant association (p=0.001). There was a statistically significant association between the number of sexual partner(s) (p=0.001) and the seroprevalence of C. trachomatis among HIV positive women. Conclusions The high frequency confirms the necessity for comprehensive sexual education among young adults and routine testing for anti-C. trachomatis. It reflects the endemicity of the infection in Ilorin and Offa Kwara State, Nigeria.
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Affiliation(s)
- Pius Omoruyi Omosigho
- Department of Medical Laboratory Science, Faculty of Applied Health Sciences, Edo State University, Uzairue, Nigeria
| | - Tope Elizabeth Ajide
- Department of Medical Laboratory Science, Faculty of Pure and Applied Science, Kwara State University, Malete, Nigeria
| | - Osazee Ekundayo Izevbuwa
- Department of Medical Laboratory Science, College of Health Sciences, Igbinedion University, Okada, Nigeria
| | - Olalekan John Okesanya
- Department of Public Health and Maritime Transport, University of Thessaly, Volos, Greece
| | - Janet Mosunmola Oladejo
- Department of Medical Microbiology and Parasitology, University of Ilorin Teaching Hospital, Kwara State, Nigeria
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Ngombe Mouabata DFL, Boumba ALM, Massengo NRB, Pouki FS, Moukassa D, Ennaji MM. Prevalence of co-infection with human papillomavirus and Chlamydia trachomatis and risk factors associated with cervical cancer in Congolese women. Microbes Infect 2024; 26:105287. [PMID: 38163457 DOI: 10.1016/j.micinf.2023.105287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 01/03/2024]
Abstract
The human papillomavirus (HPV) is one of the most frequently diagnosed viruses in developing countries. Chlamydia trachomatis (CT) is an important cofactor in HPV-induced cervical cancer. Cervico-uterine smears were taken for cytology, and a total of 131 samples were analysed. HPV prevalence and CT were detected using specific primers (L1 gene and omp-1 gene). 23 (17.5 %) HPV-only samples were detected, CT-only positives were 10 (7.6 %). And HPV/CT co-infection was 13 (9.9 %). Identified risk factors associated with HPV/CT co-infection were risky sexual behaviour and cytology status. The prevalence of HPV and CT and their co-infection rates being high in our study population, may be an indicator of cervical cancer risk. Consequently, there is an urgent need to raise awareness and take appropriate precautions.
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Affiliation(s)
- Dorine Florence Luthera Ngombe Mouabata
- Team of Virology Oncology and Biotechnologies Laboratory of Virology, Oncology, Biosciences, Environment and New Energy, Faculty of Science and Technology, Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco; Department of Health and Human Biology, Faculty of Health Sciences, Marien N'gouabi University, Brazzaville, Congo
| | - Anicet Luc Magloire Boumba
- Department of Health and Human Biology, Faculty of Health Sciences, Marien N'gouabi University, Brazzaville, Congo; Molecular Biology Laboratory of the Polyclinique de la Fondation Marie Madeleine Gombes, Congo; Pointe-Noire Research Zone, National Institute for Research in Health Sciences (IRSSA), Brazzaville, Congo
| | | | - Freddy Saturnin Pouki
- Department of Health and Human Biology, Faculty of Health Sciences, Marien N'gouabi University, Brazzaville, Congo
| | - Donatien Moukassa
- Department of Health and Human Biology, Faculty of Health Sciences, Marien N'gouabi University, Brazzaville, Congo
| | - Moulay Mustapha Ennaji
- Team of Virology Oncology and Biotechnologies Laboratory of Virology, Oncology, Biosciences, Environment and New Energy, Faculty of Science and Technology, Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco.
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Ghasemian E, Faal N, Pickering H, Sillah A, Breuer J, Bailey RL, Mabey D, Holland MJ. Genomic insights into local-scale evolution of ocular Chlamydia trachomatis strains within and between individuals in Gambian trachoma-endemic villages. Microb Genom 2024; 10:001210. [PMID: 38445851 PMCID: PMC10999739 DOI: 10.1099/mgen.0.001210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 02/12/2024] [Indexed: 03/07/2024] Open
Abstract
Trachoma, a neglected tropical disease caused by Chlamydia trachomatis (Ct) serovars A-C, is the leading infectious cause of blindness worldwide. Africa bears the highest burden, accounting for over 86 % of global trachoma cases. We investigated Ct serovar A (SvA) and B (SvB) whole genome sequences prior to the induction of mass antibiotic drug administration in The Gambia. Here, we explore the factors contributing to Ct strain diversification and the implications for Ct evolution within the context of ocular infection. A cohort study in 2002-2003 collected ocular swabs across nine Gambian villages during a 6 month follow-up study. To explore the genetic diversity of Ct within and between individuals, we conducted whole-genome sequencing (WGS) on a limited number (n=43) of Ct-positive samples with an omcB load ≥10 from four villages. WGS was performed using target enrichment with SureSelect and Illumina paired-end sequencing. Out of 43 WGS samples, 41 provided sufficient quality for further analysis. ompA analysis revealed that 11 samples had highest identity to ompA from strain A/HAR13 (NC_007429) and 30 had highest identity to ompA from strain B/Jali20 (NC_012686). While SvB genome sequences formed two distinct village-driven subclades, the heterogeneity of SvA sequences led to the formation of many individual branches within the Gambian SvA subclade. Comparing the Gambian SvA and SvB sequences with their reference strains, Ct A/HAR13 and Ct B/Jali20, indicated an single nucleotide polymorphism accumulation rate of 2.4×10-5 per site per year for the Gambian SvA and 1.3×10-5 per site per year for SvB variants (P<0.0001). Variant calling resulted in a total of 1371 single nucleotide variants (SNVs) with a frequency >25 % in SvA sequences, and 438 SNVs in SvB sequences. Of note, in SvA variants, highest evolutionary pressure was recorded on genes responsible for host cell modulation and intracellular survival mechanisms, whereas in SvB variants this pressure was mainly on genes essential for DNA replication/repair mechanisms and protein synthesis. A comparison of the sequences between observed separate infection events (4-20 weeks between infections) suggested that the majority of the variations accumulated in genes responsible for host-pathogen interaction such as CTA_0166 (phospholipase D-like protein), CTA_0498 (TarP) and CTA_0948 (deubiquitinase). This comparison of Ct SvA and SvB variants within a trachoma endemic population focused on their local evolutionary adaptation. We found a different variation accumulation pattern in the Gambian SvA chromosomal genes compared with SvB, hinting at the potential of Ct serovar-specific variation in diversification and evolutionary fitness. These findings may have implications for optimizing trachoma control and prevention strategies.
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Affiliation(s)
- Ehsan Ghasemian
- Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, UK
| | - Nkoyo Faal
- Medical Research Council Unit The Gambia at London School of Hygiene and Tropical Medicine, Banjul, Gambia
| | - Harry Pickering
- Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, UK
| | - Ansumana Sillah
- National Eye Health Programme, Ministry of Health, Kanifing, Gambia
| | - Judith Breuer
- Division of Infection and Immunity, University College London, London, UK
| | - Robin L. Bailey
- Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, UK
| | - David Mabey
- Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, UK
| | - Martin J. Holland
- Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, UK
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Chromy D, Sadoghi B, Gasslitter I, Skocic M, Okoro A, Grabmeier-Pfistershammer K, Willinger B, Weninger W, Öllinger A, Sarcletti M, Stary G, Bauer WM. Asymptomatic lymphogranuloma venereum is commonly found among men who have sex with men in Austria. J Dtsch Dermatol Ges 2024; 22:389-397. [PMID: 38308171 DOI: 10.1111/ddg.15329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 11/14/2023] [Indexed: 02/04/2024]
Abstract
BACKGROUND AND OBJECTIVES Serovar L1-L3 of Chlamydia trachomatis (CT) causes lymphogranuloma venereum (LGV). A surge in LGV-cases has been observed among HIV-positive men who have sex with men (MSM). Discrimination between LGV and non-LGV is pivotal since it has major treatment implications. Here, we aimed to determine the prevalence and characteristics of LGV among CT-infections. PATIENTS AND METHODS All CT-positive results from 04/2014-12/2021 at the four largest Austrian HIV and STI clinics were evaluated. Disease characteristics and patient demographics were analyzed. RESULTS Overall, n = 2,083 infections of CT were documented in n = 1,479 individual patients: median age was 31.4 years, 81% were male, 59% MSM, 44% HIV-positive, 13% on HIV pre-exposure-prophylaxis. Available serovar analyses (61% [1,258/2,083]) showed L1-L3 in 15% (192/1,258). Considering only MSM with rectal CT-infection, LGV accounted for 23% (101/439). Cases of LGV vs. other CT-infections were primarily MSM (92% [177/192] vs. 62% [1,179/1,891], p < 0.001), more often HIV-positive (64% [116/180] vs. 46% [631/1,376]; p < 0.001) and had frequently concomitant syphilis infection (18% [32/180] vs. 7% [52/749]; p < 0.001). LGV commonly manifested as proctitis (38% [72/192]) whereas 45% (87/192) were asymptomatic. CONCLUSIONS Lymphogranuloma venereum accounted for 23% of rectal CT-infections in MSM. Furthermore, 45% of all LGV-cases were asymptomatic. In the absence of CT-serovar analysis, a high LGV prevalence should be considered in risk-populations and guide empiric treatment selection.
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Affiliation(s)
- David Chromy
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Birgit Sadoghi
- Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Irina Gasslitter
- Dermatology, Venereology and Allergy, Medical University of Innsbruck, Innsbruck, Austria
| | - Mattias Skocic
- Department of Dermatology, Kepler University Hospital Linz, Linz, Austria
| | - Anthony Okoro
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | | | - Birgit Willinger
- Division of Clinical Microbiology, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Weninger
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Angela Öllinger
- Department of Dermatology, Kepler University Hospital Linz, Linz, Austria
| | - Mario Sarcletti
- Dermatology, Venereology and Allergy, Medical University of Innsbruck, Innsbruck, Austria
| | - Georg Stary
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
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Farfour E, Kitous C, Zucman D, Touche P, Panel K, Fourn E, Vasse M. Comparison of the Alinity M STI with the GeneXpert CT/NG for the detection of sexually transmitted microorganisms. Diagn Microbiol Infect Dis 2024; 108:116179. [PMID: 38198980 DOI: 10.1016/j.diagmicrobio.2024.116179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
We assess the performances of the Alinity M STI assay (Abbott Molecular) in comparison to the Xpert CT/NG assay (Cepheid). We first retrospectively used a collection of 70 frozen samples of which 33, 31, and 6 were positives for Chlamydia trachomatis (CT), Neisseria gonorrhoea (NG), and both micro-organisms respectively. The Alinity M STI and the Xpert CT/NG results were in accordance for all. The mean difference in cycle threshold values between the Xpert CT/NG and the Alinity M STI were -1.6 and 0.0 for CT and NG respectively. Then 214 fresh samples collected from 121 patients were prospectively tested with both instruments. Anal swabs, throat swabs, vaginal swabs, and urines accounted each for about 25%. Seven (3.2%) samples of which 5 anal swabs, provided inconclusive results with the Alinity M STI. In conclusion, the Alinity M STI is an accurate device for the microbiological diagnosis of NG and CT infections.
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Affiliation(s)
- Eric Farfour
- Service de biologie Clinique, hôpital Foch, Suresnes, France.
| | - Cyril Kitous
- Service de biologie Clinique, hôpital Foch, Suresnes, France
| | - David Zucman
- Réseau Ville-Hôpital, Service de médecine interne, Hôpital Foch, Suresnes, France
| | - Pauline Touche
- Délégation à la recherche clinique et à l'innovation, Hôpital Foch, Suresnes, France
| | - Kewin Panel
- Délégation à la recherche clinique et à l'innovation, Hôpital Foch, Suresnes, France
| | - Erwan Fourn
- Réseau Ville-Hôpital, Service de médecine interne, Hôpital Foch, Suresnes, France
| | - Marc Vasse
- Service de biologie Clinique, hôpital Foch, Suresnes, France; Université Paris-Saclay, INSERM Hémostase inflammation thrombose HITH U1176, 94276 Le Kremlin-Bicêtre, France
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21
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Pang Y, Shui J, Li C, Li Y, Chen H, Tang S. The serodiagnositic value of Chlamydia trachomatis antigens in antibody detection using luciferase immunosorbent assay. Front Public Health 2024; 12:1333559. [PMID: 38476494 PMCID: PMC10927828 DOI: 10.3389/fpubh.2024.1333559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Introduction Among the different antigens used in the detection of anti-Chlamydia trachomatis antibodies, significant differences in sensitivity and specificity have been observed. Further evaluation of C. trachomatis antigens in antibody detection is urgently needed for the development and application of C. trachomatis serologic assays. Methods Chlamydia trachomatis antigens Pgp3, TmeA, InaC, and HSP60 were selected and used in luciferase immunosorbent assay (LISA). The detection results obtained from well-defined C. trachomatis positive and negative samples were compared with the commercial C. trachomatis ELISA (Mikrogen) for performance evaluation. Results Pgp3, TmeA, InaC, and HSP60-based LISA showed sensitivity of 92.8, 88.8, 90.4, and 94.4%, and specificity of 99.2, 99.2, 99.2, and 92%, respectively. ROC analysis indicated that Pgp3-based LISA showed similar performance to Mikrogen ELISA (AUC 0.986 vs. 0.993, p = 0.207). Furthermore, four C. trachomatis antigens achieved strong diagnostic efficiency, i.e., positive likelihood ratios [+LR] ≥ 10 in C. trachomatis-infected women and negative likelihood ratios [-LR] ≤ 0.1 in C. trachomatis negative low exposure risk children, but only Pgp3 and TmeA showed strong diagnostic value in general adults. In addition, Pgp3, TmeA, and InaC, but not HSP60, achieved high performance, i.e., both positive predictive value (PPV) and negative predictive value (NPV) ≥ 90.9%, and showed no significant cross-reactivity with anti-Chlamydiapneumoniae. Conclusion Three C. trachomatis species-specific antigens Pgp3, TmeA, and InaC show superior performance in the detection of anti-C. trachomatis antibody, indicating the potential to be used in developing C. trachomatis serologic tests.
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Affiliation(s)
- Yulian Pang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Jingwei Shui
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
- Department of Emergency, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Changchang Li
- Dermatology Hospital of Southern Medical University, Guangzhou, China
| | - Yongzhi Li
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | | | - Shixing Tang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
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22
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Antonini M, Vettore MV, Øgård-Repål A, de Macêdo Rocha D, de Alencar Rocha KA, Elias HC, Barufaldi F, Santana RC, Gir E, Spire B, Reis RK. Patterns of Chlamydia trachomatis and Neisseria gonorrhoeae in different anatomical sites among Pre-Exposure Prophylaxis (PrEP) users in Brazil. BMC Infect Dis 2024; 24:260. [PMID: 38408940 PMCID: PMC10895759 DOI: 10.1186/s12879-024-09144-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/15/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND The presence of untreated sexually transmitted infections (STIs) significantly increases the chance of acquiring HIV. In Brazil, testing for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) among Pre-Exposure Prophylaxis (PrEP) users is insufficient, and syndromic treatment is a priority in clinical practice. Multi-site testing for CT/NG improves thescreening of asymptomatic cases and ensures timely treatment. Therefore, it is essential for HIV prevention. This study aims to test the importance of two-site testing for better screening of these pathogens and to determine whether the presence of symptoms is an indicator of CT/NG infection. METHODS This is a cross-sectional study carried out in four public infectious diseases clinics in São Paulo State, Brazil between January of 2022 and March of 2023. All participants had an anal swab and a first-pass or mid-stream urine collected for CT/NG analysis by Polymerase chain reaction (PCR). Data about sociodemographic, sexual behavioural and clinical aspects were collected. Pathway analysis was used to examine the direct and indirect relationships between variables according to the theoretical model. RESULTS We screened 171 PrEP users which had two samples collected, resulting in 342 samples. Comparing the anatomic sites, the urine samples showed lower sensitivity for CT and NG than anal samples. Gonorrhoea was directly linked to lower age (β= -0.161, p = 0.001). Time of PrEP use was directly associated with CT infection (β = 0.202; p = 0.042) and inversely associated with dysuria (β= -0.121, p = 0.009). Lower occurrence of yellow-green secretion was linked to detection of CT (β= -0.089, p = 0.005) and NG (β= -0.048, p = 0.002) infections. Foul-smelling discharge was directly associated with CT (β = 0.275, p = 0.004) and NG (β = 0.295, p = 0.037) infection. CONCLUSION The symptoms are a bad indicator of CT and NG infection, and the screening must be done in more than one site since most of the positive results would be missed if only urines were tested. In the case of testing only one anatomical site, specifically the urethra, the CT/NG incidence and prevalence would be underestimated. The two-sites testing improves detection rates of CT/NG, and PrEP follow-up benefits people offering STI testing.
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Affiliation(s)
- Marcela Antonini
- University of São Paulo (USP), Ribeirão Preto College of Nursing, Ribeirão Preto, São Paulo, Brazil.
| | | | - Anita Øgård-Repål
- Department of Health and Nursing Sciences, University of Agder (UiA), Kristiansand, Vest- Agder, Norway
| | - Daniel de Macêdo Rocha
- University of São Paulo (USP), Ribeirão Preto College of Nursing, Ribeirão Preto, São Paulo, Brazil
| | | | - Henrique Ciabotti Elias
- University of São Paulo (USP), Ribeirão Preto College of Nursing, Ribeirão Preto, São Paulo, Brazil
| | - Felipe Barufaldi
- University of São Paulo, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | | | - Elucir Gir
- University of São Paulo (USP), Ribeirão Preto College of Nursing, Ribeirão Preto, São Paulo, Brazil
| | | | - Renata Karina Reis
- University of São Paulo (USP), Ribeirão Preto College of Nursing, Ribeirão Preto, São Paulo, Brazil
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23
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Hahn A, Frickmann H, Loderstädt U. Modelling of doxycycline-based prevention of bacterial sexually transmitted infections in comparison to condom-based and test-based prevention. Eur J Microbiol Immunol (Bp) 2024; 14:50-58. [PMID: 38289395 PMCID: PMC10895362 DOI: 10.1556/1886.2023.00059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
Background Doxycycline-based prevention of bacterial sexually transmitted infections (STIs) has been assessed in various studies and has been recommended by the European AIDS Clinical Society to be proposed to persons with repeated STIs on a case-by-case basis. However, while good preventive effects could be shown for Chlamydia trachomatis and Treponema pallidum in Europe, no reliable prevention against doxycycline resistance-affected bacterial causes of STIs like Neisseria gonorrhoeae and Mycoplasma genitalium was confirmed. Methods In a modelling-approach, we assessed potential beneficial effects even against the latter microorganisms in case of optimized adherence with doxycycline prevention. These effects were modelled for Germany in comparison to traditional prevention schemes like condom-based STI-prevention and testing-as-prevention. Results With estimated risk reduction in the ranges of 86% for N. gonorrhoeae and of 82% for Mycoplasma genitalium, expectable preventive efficacy similar to alternative preventive approaches could be calculated in case of optimized adherence with doxycycline prevention. In case of repeated risk exposure, the preventive potential of condom-based prevention was decreased compared to both optimized doxycycline prevention and testing-as-prevention. Conclusions As suggested by the applied modelling, the preventive effect of optimized doxycycline prevention against bacterial STIs is in a similar range, like other common prevention strategies.
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Affiliation(s)
- Andreas Hahn
- Institute for Medical Microbiology, Virology and Hygiene, University Medicine Rostock, Rostock, Germany
| | - Hagen Frickmann
- Institute for Medical Microbiology, Virology and Hygiene, University Medicine Rostock, Rostock, Germany
- Department of Microbiology and Hospital Hygiene, Bundeswehr Hospital Hamburg, Hamburg, Germany
| | - Ulrike Loderstädt
- Institute for Infection Control and Infectious Diseases, University Medical Center Göttingen, Göttingen, Germany
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24
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Lu Y, Wu Q, Wang L, Ji L. Chlamydia trachomatis enhances HPV persistence through immune modulation. BMC Infect Dis 2024; 24:229. [PMID: 38378486 PMCID: PMC10880247 DOI: 10.1186/s12879-024-09094-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 02/04/2024] [Indexed: 02/22/2024] Open
Abstract
Chlamydia trachomatis (CT) is the most common sexually transmitted infections globally, and CT infection can enhance HPV persistence. Epidemiological analysis has shown that patients with CT/HPV coinfection have a higher risk of developing cervical cancer and exhibit more rapid progression to cervical cancer than patients with HPV infection alone. However, the mechanism has not been fully elucidated. Here, we report that CT infection supports HPV persistence by further suppressing the functions of Langerhans cells (LCs); in particular, CT further activates the PI3K pathway and inhibits the MAPK pathways in LCs, and these pathways are frequently involved in the regulation of immune responses. CT/HPV coinfection also impairs LC functions by reducing the antigen-presenting ability and density of LCs. Moreover, CT/HPV coinfection can alter T-cell subsets, resulting in fewer CD4 + and CD8 + T cells and more infiltrating Tregs. Moreover, CT/HPV coinfection decreases the CD4 + /CD8 + T cell ratio to below 1, coinfection also induces greater T lymphocytes' apoptosis than HPV infection, thus impairing cell-mediated immunity and accelerating the progress to cervical cancer.
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Affiliation(s)
- Yingying Lu
- Department of Clinical Laboratory, Shanghai Seventh People's Hospital , Shanghai University of Traditional Chinese Medicine, Shanghai, 200199, China.
| | - Qi Wu
- Department of Clinical Laboratory, Shanghai Zhabei Central Hospital, Shanghai, 200070, China
| | - Li Wang
- Department of Clinical Laboratory, Shanghai Zhabei Central Hospital, Shanghai, 200070, China
| | - Lingting Ji
- Department of Clinical Laboratory, Shanghai Zhabei Central Hospital, Shanghai, 200070, China
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25
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Bastidas RJ, Kędzior M, Davidson RK, Walsh SC, Dolat L, Sixt BS, Pruneda JN, Coers J, Valdivia RH. The acetylase activity of Cdu1 regulates bacterial exit from infected cells by protecting Chlamydia effectors from degradation. eLife 2024; 12:RP87386. [PMID: 38358795 PMCID: PMC10942603 DOI: 10.7554/elife.87386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024] Open
Abstract
Many cellular processes are regulated by ubiquitin-mediated proteasomal degradation. Pathogens can regulate eukaryotic proteolysis through the delivery of proteins with de-ubiquitinating (DUB) activities. The obligate intracellular pathogen Chlamydia trachomatis secretes Cdu1 (ChlaDUB1), a dual deubiquitinase and Lys-acetyltransferase, that promotes Golgi remodeling and survival of infected host cells presumably by regulating the ubiquitination of host and bacterial proteins. Here, we determined that Cdu1's acetylase but not its DUB activity is important to protect Cdu1 from ubiquitin-mediated degradation. We further identified three C. trachomatis proteins on the pathogen-containing vacuole (InaC, IpaM, and CTL0480) that required Cdu1's acetylase activity for protection from degradation and determined that Cdu1 and these Cdu1-protected proteins are required for optimal egress of Chlamydia from host cells. These findings highlight a non-canonical mechanism of pathogen-mediated protection of virulence factors from degradation after their delivery into host cells and the coordinated regulation of secreted effector proteins.
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Affiliation(s)
- Robert J Bastidas
- Department of Integrative Immunobiology, Duke UniversityDurhamUnited States
| | - Mateusz Kędzior
- Department of Integrative Immunobiology, Duke UniversityDurhamUnited States
| | - Robert K Davidson
- Department of Molecular Genetics and Microbiology, Duke UniversityDukeUnited States
| | - Stephen C Walsh
- Department of Molecular Genetics and Microbiology, Duke UniversityDukeUnited States
| | - Lee Dolat
- Department of Integrative Immunobiology, Duke UniversityDurhamUnited States
| | - Barbara S Sixt
- Deparment of Molecular Biology, Umeå UniversityUmeåSweden
- The Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå UniversityUmeåSweden
- Umeå Centre for Microbial Research (UCMR), Umeå UniversityUmeåSweden
| | - Jonathan N Pruneda
- Department of Molecular Microbiology & Immunology, Oregon Health & Science UniversityPortlandUnited States
| | - Jorn Coers
- Department of Integrative Immunobiology, Duke UniversityDurhamUnited States
- Department of Molecular Genetics and Microbiology, Duke UniversityDukeUnited States
| | - Raphael H Valdivia
- Department of Integrative Immunobiology, Duke UniversityDurhamUnited States
- Department of Molecular Genetics and Microbiology, Duke UniversityDukeUnited States
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26
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Shen L, Gao L, Swoboda AR, Ouellette SP. Targeted repression of topA by CRISPRi reveals a critical function for balanced DNA topoisomerase I activity in the Chlamydia trachomatis developmental cycle. mBio 2024; 15:e0258423. [PMID: 38265209 PMCID: PMC10865786 DOI: 10.1128/mbio.02584-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/06/2023] [Indexed: 01/25/2024] Open
Abstract
Chlamydia trachomatis is an obligate intracellular bacterium that is responsible for the most prevalent bacterial sexually transmitted infection. Changes in DNA topology in this pathogen have been linked to its pathogenicity-associated developmental cycle. Here, evidence is provided that the balanced activity of DNA topoisomerases contributes to controlling Chlamydia developmental processes. Utilizing catalytically inactivated Cas12 (dCas12)-based clustered regularly interspaced short palindromic repeats interference (CRISPRi) technology, we demonstrate targeted knockdown of chromosomal topA transcription in C. trachomatis without detected toxicity of dCas12. Repression of topA impaired the developmental cycle of C. trachomatis mostly through disruption of its differentiation from a replicative form to an infectious form. Consistent with this, expression of late developmental genes of C. trachomatis was downregulated, while early genes maintained their expression. Importantly, the developmental defect associated with topA knockdown was rescued by overexpressing topA at an appropriate degree and time, directly linking the growth patterns to the levels of topA expression. Interestingly, topA knockdown had effects on DNA gyrase expression, indicating a potential compensatory mechanism for survival to offset TopA deficiency. C. trachomatis with topA knocked down displayed hypersensitivity to moxifloxacin that targets DNA gyrase in comparison with the wild type. These data underscore the requirement of integrated topoisomerase actions to support the essential developmental and transcriptional processes of C. trachomatis.IMPORTANCEWe used genetic and chemical tools to demonstrate the relationship of topoisomerase activities and their obligatory role for the chlamydial developmental cycle. Successfully targeting the essential gene topA with a CRISPRi approach, using dCas12, in C. trachomatis indicates that this method will facilitate the characterization of the essential genome. These findings have an important impact on our understanding of the mechanisms by which well-balanced topoisomerase functions in adaptation of C. trachomatis to unfavorable growth conditions imposed by antibiotics.
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Affiliation(s)
- Li Shen
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Leiqiong Gao
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Abigail R. Swoboda
- Department of Pathology, Microbiology, and Immunology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Scot P. Ouellette
- Department of Pathology, Microbiology, and Immunology, University of Nebraska Medical Center, Omaha, Nebraska, USA
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27
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Campos M, Galán JC, Rodríguez-Domínguez M, Sempere JM, Llorens C, Baquero F. Membrane computing simulation of sexually transmitted bacterial infections in hotspots of individuals with various risk behaviors. Microbiol Spectr 2024; 12:e0272823. [PMID: 38197662 PMCID: PMC10845966 DOI: 10.1128/spectrum.02728-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/07/2023] [Indexed: 01/11/2024] Open
Abstract
The epidemiology of sexually transmitted infections (STIs) is complex due to the coexistence of various pathogens, the variety of transmission modes derived from sexual orientations and behaviors at different ages and genders, and sexual contact hotspots resulting in network transmission. There is also a growing proportion of recreational drug users engaged in high-risk sexual activities, as well as pharmacological self-protection routines fostering non-condom practices. The frequency of asymptomatic patients makes it difficult to develop a comprehensive approach to STI epidemiology. Modeling approaches are required to deal with such complexity. Membrane computing is a natural computing methodology for the virtual reproduction of epidemics under the influence of deterministic and stochastic events with an unprecedented level of granularity. The application of the LOIMOS program to STI epidemiology illustrates the possibility of using it to shape appropriate interventions. Under the conditions of our basic landscape, including sexual hotspots of individuals with various risk behaviors, an increase in condom use reduces STIs in a larger proportion of heterosexuals than in same-gender sexual contacts and is much more efficient for reducing Neisseria gonorrhoeae than Chlamydia and lymphogranuloma venereum infections. Amelioration from diagnostic STI screening could be instrumental in reducing N. gonorrhoeae infections, particularly in men having sex with men (MSM), and Chlamydia trachomatis infections in the heterosexual population; however, screening was less effective in decreasing lymphogranuloma venereum infections in MSM. The influence of STI epidemiology of sexual contacts between different age groups (<35 and ≥35 years) and in bisexual populations was also submitted for simulation.IMPORTANCEThe epidemiology of sexually transmitted infections (STIs) is complex and significantly influences sexual and reproductive health worldwide. Gender, age, sexual orientation, sexual behavior (including recreational drug use and physical and pharmacological protection practices), the structure of sexual contact networks, and the limited application or efficiency of diagnostic screening procedures create variable landscapes in different countries. Modeling techniques are required to deal with such complexity. We propose the use of a simulation technology based on membrane computing, mimicking in silico STI epidemics under various local conditions with an unprecedented level of detail. This approach allows us to evaluate the relative weight of the various epidemic drivers in various populations at risk and the possible outcomes of interventions in particular epidemiological landscapes.
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Affiliation(s)
- Marcelino Campos
- Department of Microbiology, Ramón y Cajal University Hospital, IRYCIS, Madrid, Spain
- Valencian Research Institute for Artificial Intelligence (VRAIN), Polytechnic University of Valencia, Valencia, Spain
| | - Juan Carlos Galán
- Department of Microbiology, Ramón y Cajal University Hospital, IRYCIS, Madrid, Spain
- Center for Biomedical Research in Epidemiology and Public Health Network (CIBERESP) Madrid, Madrid, Spain
| | - Mario Rodríguez-Domínguez
- Department of Microbiology, Ramón y Cajal University Hospital, IRYCIS, Madrid, Spain
- Center for Biomedical Research in Epidemiology and Public Health Network (CIBERESP) Madrid, Madrid, Spain
| | - José M. Sempere
- Valencian Research Institute for Artificial Intelligence (VRAIN), Polytechnic University of Valencia, Valencia, Spain
| | - Carlos Llorens
- Biotechvana, Valencia, Scientific Park University of Valencia, Paterna, Spain
| | - Fernando Baquero
- Department of Microbiology, Ramón y Cajal University Hospital, IRYCIS, Madrid, Spain
- Center for Biomedical Research in Epidemiology and Public Health Network (CIBERESP) Madrid, Madrid, Spain
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28
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Ray A, Pradhan D, Siraj F, Arora R, Rastogi S. MicroRNA mediated regulation of oxidative stress and cytokines in Chlamydia trachomatis-infected recurrent spontaneous abortion: A case-control study. Am J Reprod Immunol 2024; 91:e13821. [PMID: 38374806 DOI: 10.1111/aji.13821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 02/21/2024] Open
Abstract
PROBLEM Increased oxidative stress (OS) and inflammatory responses are major underlying factors behind Chlamydia trachomatis-associated recurrent spontaneous abortion (RSA). miRNAs are known to regulate inflammation and OS and their dysregulation has been associated with compromised pregnancies. Therefore, aim of this study was to investigate the expression/correlation of OS biomarkers, cytokines and miRNAs in C. trachomatis-associated RSA. METHOD OF STUDY Urine and non-heparinized blood samples were collected from RSA patients with history of >3 consecutive abortions (cases) and non-pregnant women with history of >2 successful deliveries (controls) attending Department of Obstetrics and Gynaecology, Safdarjung hospital, New Delhi. C. trachomatis detection was done in urine by PCR. miRNA expression was studied by microarray analysis and validated by real time-PCR. Evaluation of cytokines and antioxidant genes expression were done by real-time PCR. Level of OS biomarkers 8-hydroxy guanosine (8-OHdG) and 8-isporostane (8-IP) were measured by ELISA. RESULTS Fifty circulating miRNAs were differentially expressed in infected patients compared with controls. Of these, four were overexpressed and 46 downregulated. Thirteen differentially expressed circulating miRNAs were selected to validate microarray results. miRs-8069, -3663-3p showed maximum upregulation/downregulation in infected versus control group. Expression of cytokines (IL-8, TNF-α, IFN-γ), antioxidant genes SOD2 and OS biomarkers (8-OHdG,8-IP) were increased while SOD1 was decreased in infected patients. miR-8069 showed significant positive correlation with cytokines, SOD2, 8-OHdG and 8-IP. miR-3663-3p showed significant positive correlation with SOD1. CONCLUSIONS Overall results indicate circulating miRNAs are involved in pathogenesis of C. trachomatis-associated RSA and are potential modulators of cytokine signalling and OS in infected RSA.
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Affiliation(s)
- Ankita Ray
- Molecular Microbiology laboratory, ICMR-National Institute of Pathology, Sriramachari Bhawan, Safdarjung hospital campus, New Delhi, India
| | - Dibyabhaba Pradhan
- ICMR-AIIMS Computational Genomics Centre, Convergence Block, AIIMS, New Delhi, India
| | - Fouzia Siraj
- Pathology Laboratory, ICMR-National Institute of Pathology, Sriramachari Bhawan, Safdarjung Hospital Campus, New Delhi, India
| | - Renu Arora
- Department of Obstetrics and Gynecology, Vardhman Mahavir Medical College (VMMC) and Safdarjung Hospital, New Delhi, India
| | - Sangita Rastogi
- Molecular Microbiology laboratory, ICMR-National Institute of Pathology, Sriramachari Bhawan, Safdarjung hospital campus, New Delhi, India
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Gadenne C, Miquel L, Faust C, Berbis J, Perrin J, Courbiere B. Impact of a positive Chlamydia trachomatis serology on cumulative IVF live birth rate. Reprod Biomed Online 2024; 48:103586. [PMID: 38113763 DOI: 10.1016/j.rbmo.2023.103586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 12/21/2023]
Abstract
RESEARCH QUESTION Does positive Chlamydia trachomatis serology have an impact on the cumulative live birth rate from IVF? DESIGN A retrospective matched cohort study compared women with positive Chlamydia trachomatis serology (group A) who underwent IVF treatment between January 2016 and December 2021 with a control group of women with negative Chlamydia trachomatis serology (group B). The main outcome measures were the cumulative live birth rate per IVF cycle and the live birth rate per embryo transfer. Secondary outcomes were the cumulative rates of clinical pregnancy, ectopic pregnancy and pregnancy loss calculated per IVF cycle and per embryo transfer. RESULTS A total of 151 women in group A were matched 1:2 to 302 women in group B, representing 220 and 440 IVF cycles, respectively. Women with a history of Chlamydia trachomatis infection had a significantly higher rate of tubal obstruction (P < 0.001), excluded or operated hydrosalpinx (P = 0.002) and/or history of chronic endometritis (P < 0.001). There were no statistically significant differences between the two groups in the mean number of mature oocytes retrieved, fertilization rate or implantation rate. The IVF cumulative live birth rate per cycle was similar in the two groups (36.7% in group A versus 34.9% in group B, P = 0.692). The cumulative rates of clinical pregnancy, pregnancy loss, biochemical pregnancy and ectopic pregnancy were comparable between the two groups. CONCLUSION Positive Chlamydia trachomatis serology has no impact on IVF pregnancy outcomes.
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Affiliation(s)
- Clara Gadenne
- Department of Gynecology-Obstetric and Reproductive Medicine, Assistance Publique - Hôpitaux de Marseille, La Conception University Hospital, Aix-Marseille Univ, Marseille, France.
| | - Laura Miquel
- Department of Gynecology-Obstetric and Reproductive Medicine, Assistance Publique - Hôpitaux de Marseille, La Conception University Hospital, Aix-Marseille Univ, Marseille, France
| | - Cindy Faust
- Public Health Department, Assistance Publique - Hôpitaux de Marseille, Aix-Marseille Univ, Marseille, France
| | - Julie Berbis
- Public Health Department, Assistance Publique - Hôpitaux de Marseille, Aix-Marseille Univ, Marseille, France
| | - Jeanne Perrin
- Department of Gynecology-Obstetric and Reproductive Medicine, Assistance Publique - Hôpitaux de Marseille, La Conception University Hospital, Aix-Marseille Univ, Marseille, France; IMBE, CNRS, IRD, Avignon Univ, Marseille, France
| | - Blandine Courbiere
- Department of Gynecology-Obstetric and Reproductive Medicine, Assistance Publique - Hôpitaux de Marseille, La Conception University Hospital, Aix-Marseille Univ, Marseille, France; IMBE, CNRS, IRD, Avignon Univ, Marseille, France
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Nguyen H, Do Ngoc A, Nguyen Le V, Nguyen Thi NQ, Hoang Thi Y, Hoang CD, Tran Quang P, Vu Van D. Prevalence, risk factors and genotyping of chlamydia trachomatis from endocervical specimens of infertile women at a tertiary care hospital, Vietnam. Int J STD AIDS 2024:9564624241230342. [PMID: 38294256 DOI: 10.1177/09564624241230342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
BACKGROUND To our knowledge, the prevalence, risk factors and distribution of C. trachomatis genotypes are rarely mentioned in Vietnam. This study aimed to find the prevalence, risk factors and distribution of C. trachomatis genotypes in infertile Vietnamese women. METHODS Endocervical swabs were collected from infertile women at the National Hospital of Obstetrics and Gynecology, Vietnam, between January 2020 and December 2021. All samples were analyzed for C. trachomatis presence by Cobas 4800 CT/NG Test. Sequencing methods of ompA gene were used to determine the C. trachomatis genotypes. An approximately 1200 bp ompA fragment was aligned with reference sequences from GenBank to identify the corresponding genotype. RESULTS The prevalence of endocervical C. trachomatis infection was 15.6% of 761 participants. Factors independently associated with CT infection among infertile women, obtained by multivariate analysis, included abnormal vaginal discharge, cervicitis, lower abdominal pain, a history of ectopic pregnancy, having more than one sex partner, and age at first intercourse. Among the samples, genotype E (25.93%) was most frequently found, followed by genotypes D/Da (22.23%), F (13.58%), G/Ga (12.35%), J (12.35%), H (6.17%), K (3.70%), B/Ba (2.47%), and I/Ia (1.23%), respectively. Genotype F was related to types of infertility, and genotype H was associated with a history of miscarriage. CONCLUSIONS The present study indicated a high prevalence of C. trachomatis in infertile Vietnamese women. The most common genotypes found in this population were E, D, and F. Our findings suggest that routine screening is necessary for early detection and performance of infection control methods.
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Affiliation(s)
- Hoa Nguyen
- Pelvic Floor Centre, National Hospital of Obstetrics and Gynecology, Hanoi, Vietnam
| | - Anh Do Ngoc
- Department of Laboratory Medicine, 103 Military Hospital, Hanoi, Vietnam
- Department of Medical Parasitology, Military Medical University, Hanoi, Vietnam
| | - Van Nguyen Le
- Department of Laboratory Medicine, 103 Military Hospital, Hanoi, Vietnam
| | | | - Yen Hoang Thi
- Department of Science and Training, National Institute of Malariology Parasitology and Entomology, Hanoi, Vietnam
| | - Canh Dinh Hoang
- Department of Science and Training, National Institute of Malariology Parasitology and Entomology, Hanoi, Vietnam
| | - Phuc Tran Quang
- Department of Science and Training, National Institute of Malariology Parasitology and Entomology, Hanoi, Vietnam
| | - Du Vu Van
- Treatment on Demand Department, National Hospital of Obstetrics and Gynecology, Hanoi, Vietnam
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Wang X, Wu H, Fang C, Li Z. Insights into innate immune cell evasion by Chlamydia trachomatis. Front Immunol 2024; 15:1289644. [PMID: 38333214 PMCID: PMC10850350 DOI: 10.3389/fimmu.2024.1289644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 01/11/2024] [Indexed: 02/10/2024] Open
Abstract
Chlamydia trachomatis, is a kind of obligate intracellular pathogen. The removal of C. trachomatis relies primarily on specific cellular immunity. It is currently considered that CD4+ Th1 cytokine responses are the major protective immunity against C. trachomatis infection and reinfection rather than CD8+ T cells. The non-specific immunity (innate immunity) also plays an important role in the infection process. To survive inside the cells, the first process that C. trachomatis faces is the innate immune response. As the "sentry" of the body, mast cells attempt to engulf and remove C. trachomatis. Dendritic cells present antigen of C. trachomatis to the "commanders" (T cells) through MHC-I and MHC-II. IFN-γ produced by activated T cells and natural killer cells (NK) further activates macrophages. They form the body's "combat troops" and produce immunity against C. trachomatis in the tissues and blood. In addition, the role of eosinophils, basophils, innate lymphoid cells (ILCs), natural killer T (NKT) cells, γδT cells and B-1 cells should not be underestimated in the infection of C. trachomatis. The protective role of innate immunity is insufficient, and sexually transmitted diseases (STDs) caused by C. trachomatis infections tend to be insidious and recalcitrant. As a consequence, C. trachomatis has developed a unique evasion mechanism that triggers inflammatory immunopathology and acts as a bridge to protective to pathological adaptive immunity. This review focuses on the recent advances in how C. trachomatis evades various innate immune cells, which contributes to vaccine development and our understanding of the pathophysiologic consequences of C. trachomatis infection.
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Affiliation(s)
| | | | | | - Zhongyu Li
- Institute of Pathogenic Biology, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, School of Nursing, Hengyang Medical College, University of South China, Hengyang, China
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Ball LM, Bronstein E, Liechti GW, Maurelli AT. Neisseria gonorrhoeae drives Chlamydia trachomatis into a persistence-like state during in vitro co-infection. Infect Immun 2024; 92:e0017923. [PMID: 38014981 PMCID: PMC10790821 DOI: 10.1128/iai.00179-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 11/05/2023] [Indexed: 11/29/2023] Open
Abstract
Chlamydia trachomatis and Neisseria gonorrhoeae are the most prevalent bacterial sexually transmitted infections (STIs) globally. Despite frequent co-infections in patients, few studies have investigated how mono-infections may differ from co-infections. We hypothesized that a symbiotic relationship between the pathogens could account for the high rates of clinical co-infection. During in vitro co-infection, we observed an unexpected phenotype where the C. trachomatis developmental cycle was impaired by N. gonorrhoeae. C. trachomatis is an obligate intracellular pathogen with a unique biphasic developmental cycle progressing from infectious elementary bodies (EB) to replicative reticulate bodies (RB), and back. After 12 hours of co-infection, we observed fewer EBs than in a mono-infection. Chlamydial genome copy number remained equivalent between mono- and co-infections. This is a hallmark of Chlamydial persistence. Chlamydial persistence alters inclusion morphology but varies depending on the stimulus/stress. We observed larger, but fewer, Chlamydia during co-infection. Tryptophan depletion can induce Chlamydial persistence, but tryptophan supplementation did not reverse the co-infection phenotype. Only viable and actively growing N. gonorrhoeae produced the inhibition phenotype in C. trachomatis. Piliated N. gonorrhoeae had the strongest effect on C. trachomatis, but hyperpiliated or non-piliated N. gonorrhoeae still produced the phenotype. EB development was modestly impaired when N. gonorrhoeae were grown in transwells above the infected monolayer. C. trachomatis serovar L2 was not impaired during co-infection. Chlamydial impairment could be due to cytoskeletal or osmotic stress caused by an as-yet-undefined mechanism. We conclude that N. gonorrhoeae induces a persistence-like state in C. trachomatis that is serovar dependent.
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Affiliation(s)
- Louise M. Ball
- Emerging Pathogens Institute and Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida, Gainesville, Florida, USA
| | - Ellis Bronstein
- F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA
| | - George W. Liechti
- Department of Microbiology and Immunology, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA
| | - Anthony T. Maurelli
- Emerging Pathogens Institute and Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida, Gainesville, Florida, USA
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Bommana S, Hu YJ, Kama M, Wang R, Kodimerla R, Jijakli K, Read TD, Dean D. Unique microbial diversity, community composition, and networks among Pacific Islander endocervical and vaginal microbiomes with and without Chlamydia trachomatis infection in Fiji. mBio 2024; 15:e0306323. [PMID: 38117091 PMCID: PMC10790706 DOI: 10.1128/mbio.03063-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/21/2023] Open
Abstract
IMPORTANCE Chlamydia trachomatis (Ct) is the most common sexually transmitted bacterium globally. Endocervical and vaginal microbiome interactions are rarely examined within the context of Ct or among vulnerable populations. We evaluated 258 vaginal and 92 paired endocervical samples from Fijian women using metagenomic shotgun sequencing. Over 37% of the microbiomes could not be classified into sub-community state types (subCSTs). We, therefore, developed subCSTs IV-D0, IV-D1, IV-D2, and IV-E-dominated primarily by Gardnerella vaginalis-to improve classification. Among paired microbiomes, the endocervix had a significantly higher alpha diversity and, independently, higher diversity for high-risk human papilloma virus (HPV) genotypes compared to low-risk and no HPV. Ct-infected endocervical networks had smaller clusters without interactions with potentially beneficial Lactobacillus spp. Overall, these data suggest that G. vaginalis may generate polymicrobial biofilms that predispose to and/or promote Ct and possibly HPV persistence and pathogenicity. Our findings expand on the existing repertoire of endocervical and vaginal microbiomes and fill in knowledge gaps regarding Pacific Islanders.
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Affiliation(s)
- Sankhya Bommana
- Department of Pediatrics, University of California San Francisco, Oakland, California, USA
| | - Yi-Juan Hu
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, Georgia, USA
| | - Mike Kama
- Ministry of Health and Medical Services, Suva, Fiji
| | - Ruohong Wang
- Department of Pediatrics, University of California San Francisco, Oakland, California, USA
| | - Reshma Kodimerla
- Department of Pediatrics, University of California San Francisco, Oakland, California, USA
| | - Kenan Jijakli
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Timothy D. Read
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Deborah Dean
- Department of Pediatrics, University of California San Francisco, Oakland, California, USA
- Department of Medicine, University of California San Francisco, San Francisco, California, USA
- Department of Bioengineering, Joint Graduate Program, University of California San Francisco and University of California Berkeley, San Francisco, California, USA
- Bixby Center for Global Reproductive Health, University of California San Francisco, San Francisco, California, USA
- University of California San Francisco, Benioff Center for Microbiome Medicine, San Francisco, California, USA
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Jury B, Fleming C, Huston WM, Luu LDW. Corrigendum: Molecular pathogenesis of Chlamydia trachomatis. Front Cell Infect Microbiol 2024; 13:1358553. [PMID: 38249301 PMCID: PMC10797242 DOI: 10.3389/fcimb.2023.1358553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024] Open
Abstract
[This corrects the article DOI: 10.3389/fcimb.2023.1281823.].
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Affiliation(s)
- Brittany Jury
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Charlotte Fleming
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | | | - Laurence Don Wai Luu
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
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Tzialla C, Auriti C, Aversa S, Merazzi D, Martinelli S, Araimo G, Massenzi L, Cavallaro G, Gagliardi L, Giuffrè M, Mosca F, Cetin I, Trojano V, Valensise H, Colacurci N, Orfeo L, Mondì V. Intersociety Position Statement on the Prevention of Ophthalmia Neonatorum in Italy. Microorganisms 2023; 12:15. [PMID: 38276184 PMCID: PMC10818411 DOI: 10.3390/microorganisms12010015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
There is currently no worldwide agreement on the real need to administer conjunctival antibiotics to neonates at birth to prevent neonatal conjunctivitis (usually defined as ophthalmia neonatorum) by Chlamydia trachomatis and Neisseria gonorrhoeae. Therefore, there is wide variability in antibiotic administration, conditioned mainly by the social and health context. In Italy, a law enacted in 1940 required doctors and midwives to administer ophthalmic prophylaxis with 2% silver nitrate to all newborns at birth. This law was repealed in 1975 and since then there has been no clear guidance on the use of ophthalmia neonatorum prophylaxis at birth. Since neonatal conjunctivitis caused by C. trachomatis and N. gonorrhoeae is not reported, we carried out a nationwide survey of 1,041,384 neonates across all Italian birth centers to evaluate the incidence of ophthalmia neonatorum and the current practice of prophylaxis. After analyzing the results, we formulated an intersociety position statement on the prevention of ophthalmia neonatorum to update and standardize this prevention strategy in Italy.
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Affiliation(s)
- Chryssoula Tzialla
- Neonatal and Pediatric Unit, Polo Ospedaliero Oltrepò, ASST Pavia, Via Volturno 14, 27058 Voghera, Italy;
| | - Cinzia Auriti
- Faculty of Medicine, UniCamillus-Saint Camillus International University of Health Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy
- Neonatologic Unit, Villa Margherita Private Clinic, Viale di Villa Massimo 48, 00161 Rome, Italy
| | - Salvatore Aversa
- Neonatal Intensive Care Unit, Children’s Hospital, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy;
| | - Daniele Merazzi
- Division of Neonatology, ‘Valduce’ Hospital, Via Dante Alighieri 11, 22100 Como, Italy;
| | - Stefano Martinelli
- Neonatal Intensive Care Unit, ASST Grande Ospedale Metropolitano Niguarda, Piazza dell’Ospedale Maggiore 3, 20162 Milan, Italy;
| | - Gabriella Araimo
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 28, 20122 Milan, Italy; (G.A.); (G.C.); (F.M.)
| | - Luca Massenzi
- Division of Neonatology, Central Teaching Hospital of Bolzano, Via Lorenz Böhler 5, 39100 Bolzano, Italy;
| | - Giacomo Cavallaro
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 28, 20122 Milan, Italy; (G.A.); (G.C.); (F.M.)
| | - Luigi Gagliardi
- Department of Mother and Child Health, Azienda USL Toscana Nord Ovest, Via A. Cocchi, 7/9, 56121 Pisa, Italy;
| | - Mario Giuffrè
- Neonatal Intensive Care Unit, A.U.O.Policlinico ‘Paolo Giaccone’, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties ‘G. D’Alessandro’, University of Palermo, Via del Vespro 129, 90126 Palermo, Italy;
| | - Fabio Mosca
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 28, 20122 Milan, Italy; (G.A.); (G.C.); (F.M.)
- Department of Clinical Sciences and Community Health, University of Milan, Via della Commenda 19, 20122 Milan, Italy
| | - Irene Cetin
- Department of BioMedical and Clinical Sciences, University of Milan, Via Gian Battista Grassi 74, 20122 Milan, Italy;
- Department of Obstetrics and Gynecology, Hospital V. Buzzi, ASST Fatebenefratelli Sacco, Via Lodovico Castelvetro 32, 20154 Milan, Italy
| | - Vito Trojano
- Department of Obstetrics and Gynaecology, Mater Dei Hospital, Via Samuel F. Hahnemann 10, 70125 Bari, Italy;
| | - Herbert Valensise
- Department of Surgical Sciences, University of Rome Tor Vergata, Via Montpellier, 1, 00133 Rome, Italy;
- Obstetrics and Gynecology, Policlinico Casilino, Via Casilina 1049, 00169 Rome, Italy
| | - Nicola Colacurci
- Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, Via Luigi De Crecchio 2, 80138 Naples, Italy;
| | - Luigi Orfeo
- Neonatal Intensive Care Unit, Fatebenefratelli Isola Tiberina—Gemelli Isola, Via di Ponte Quattro Capi 39, 00186 Rome, Italy;
| | - Vito Mondì
- Neonatology and Neonatal Intensive Care Unit, Policlinico Casilino, Via Casilina 1049, 00169 Rome, Italy;
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Caven L, Carabeo R. Chlamydial YAP activation in host endocervical epithelial cells mediates pro-fibrotic paracrine stimulation of fibroblasts. mSystems 2023; 8:e0090423. [PMID: 37874141 PMCID: PMC10734534 DOI: 10.1128/msystems.00904-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 09/15/2023] [Indexed: 10/25/2023] Open
Abstract
IMPORTANCE Chronic or repeated infection of the female upper genital tract by C. trachomatis can lead to severe fibrotic sequelae, including tubal factor infertility and ectopic pregnancy. However, the molecular mechanisms underlying this effect are unclear. In this report, we define a transcriptional program specific to C. trachomatis infection of the upper genital tract, identifying tissue-specific induction of host YAP-a pro-fibrotic transcriptional cofactor-as a potential driver of infection-mediated fibrotic gene expression. Furthermore, we show that infected endocervical epithelial cells stimulate collagen production by fibroblasts and implicate chlamydial induction of YAP in this effect. Our results define a mechanism by which infection mediates tissue-level fibrotic pathology via paracrine signaling and identify YAP as a potential therapeutic target for the prevention of Chlamydia-associated scarring of the female genital tract.
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Affiliation(s)
- Liam Caven
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, USA
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, Washington, USA
| | - Rey Carabeo
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, USA
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Tedijanto C, Aragie S, Gwyn S, Wittberg DM, Zeru T, Tadesse Z, Chernet A, Thompson IJ, Nash SD, Lietman TM, Martin DL, Keenan JD, Arnold BF. Seroreversion to Chlamydia trachomatis Pgp3 antigen among children in a hyperendemic region of Amhara, Ethiopia. medRxiv 2023:2023.02.04.23285360. [PMID: 36798251 PMCID: PMC9934712 DOI: 10.1101/2023.02.04.23285360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Monitoring trachoma transmission with antibody data requires characterization of decay in IgG to Chlamydia trachomatis antigens. In a three-year longitudinal cohort in a high transmission setting, we estimated a median IgG half-life of 3 years and a seroreversion rate of 2.5 (95% CI: 1.6, 3.5) per 100 person-years.
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Affiliation(s)
- Christine Tedijanto
- Francis I. Proctor Foundation, University of California San Francisco, San Francisco, CA, USA
| | | | - Sarah Gwyn
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Dionna M. Wittberg
- Francis I. Proctor Foundation, University of California San Francisco, San Francisco, CA, USA
| | - Taye Zeru
- Amhara Public Health Institute, Bahir Dar, Ethiopia
| | | | | | - Isabel J.B. Thompson
- Francis I. Proctor Foundation, University of California San Francisco, San Francisco, CA, USA
| | | | - Thomas M. Lietman
- Francis I. Proctor Foundation, University of California San Francisco, San Francisco, CA, USA
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Diana L. Martin
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jeremy D. Keenan
- Francis I. Proctor Foundation, University of California San Francisco, San Francisco, CA, USA
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
| | - Benjamin F. Arnold
- Francis I. Proctor Foundation, University of California San Francisco, San Francisco, CA, USA
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
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Luo H, Zeng L, Yin X, Pan Y, Yang J, Liu M, Qin X, Feng Z, Chen W, Zheng H. An isothermal CRISPR-based diagnostic assay for Neisseria gonorrhoeae and Chlamydia trachomatis detection. Microbiol Spectr 2023; 11:e0046423. [PMID: 37882532 PMCID: PMC10715037 DOI: 10.1128/spectrum.00464-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/27/2023] [Indexed: 10/27/2023] Open
Abstract
IMPORTANCE A method for Neisseria gonorrhoeae (NG)/Chlamydia trachomatis (CT) detection is developed using multiplex-recombinase polymerase amplification and Cas12a/Cas13a. This method can detect NG and CT simultaneously with high sensitivity and specificity. This method has great potential to be further developed into larger-scale screening and point-of-care testing (POCT).
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Affiliation(s)
- Hao Luo
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Lihong Zeng
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Xiaona Yin
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Yuying Pan
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Jianjiang Yang
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Mingjing Liu
- Medical College, China Three Gorges University, Yichang, China
| | - Xiaolin Qin
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Zhanqin Feng
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Wentao Chen
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Heping Zheng
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
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Touati A, Bébéar C, Peuchant O. Correlating genotypic and phenotypic antimicrobial susceptibility testing in clinical Chlamydia trachomatis isolates. Microbiol Spectr 2023; 11:e0293523. [PMID: 37966206 PMCID: PMC10714979 DOI: 10.1128/spectrum.02935-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023] Open
Affiliation(s)
- Arabella Touati
- Bacteriology Department, CHU Bordeaux, National Reference Center for Bacterial Sexually Transmitted Infections, Bordeaux, France
| | - Cécile Bébéar
- Bacteriology Department, CHU Bordeaux, National Reference Center for Bacterial Sexually Transmitted Infections, Bordeaux, France
- Univ. Bordeaux, Centre national de la recherche scientifique (CNRS), UMR 5234, Fundamental Microbiology and Pathogenicity, Bordeaux, France
| | - Olivia Peuchant
- Bacteriology Department, CHU Bordeaux, National Reference Center for Bacterial Sexually Transmitted Infections, Bordeaux, France
- Univ. Bordeaux, Centre national de la recherche scientifique (CNRS), UMR 5234, Fundamental Microbiology and Pathogenicity, Bordeaux, France
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Ardizzone CM, Taylor CM, Toh E, Lillis RA, Elnaggar JH, Lammons JW, Mott PD, Duffy EL, Shen L, Quayle AJ. Association of Chlamydia trachomatis burden with the vaginal microbiota, bacterial vaginosis, and metronidazole treatment. Front Cell Infect Microbiol 2023; 13:1289449. [PMID: 38149008 PMCID: PMC10750252 DOI: 10.3389/fcimb.2023.1289449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/21/2023] [Indexed: 12/28/2023] Open
Abstract
Bacterial vaginosis (BV), a dysbiosis of the vaginal microbiota, is a common coinfection with Chlamydia trachomatis (Ct), and BV-associated bacteria (BVAB) and their products have been implicated in aiding Ct evade natural immunity. Here, we determined if a non-optimal vaginal microbiota was associated with a higher genital Ct burden and if metronidazole, a standard treatment for BV, would reduce Ct burden or aid in natural clearance of Ct infection. Cervicovaginal samples were collected from women at enrollment and, if testing positive for Ct infection, at a follow-up visit approximately one week later. Cervical Ct burden was assessed by inclusion forming units (IFU) and Ct genome copy number (GCN), and 16S rRNA gene sequencing was used to determine the composition of the vaginal microbiota. We observed a six-log spectrum of IFU and an eight-log spectrum of GCN in our study participants at their enrollment visit, but BV, as indicated by Amsel's criteria, Nugent scoring, or VALENCIA community state typing, did not predict infectious and total Ct burden, although IFU : GCN increased with Amsel and Nugent scores and in BV-like community state types. Ct burden was, however, associated with the abundance of bacterial species in the vaginal microbiota, negatively with Lactobacillus crispatus and positively with Prevotella bivia. Women diagnosed with BV were treated with metronidazole, and Ct burden was significantly reduced in those who resolved BV with treatment. A subset of women naturally cleared Ct infection in the interim, typified by low Ct burden at enrollment and resolution of BV. Abundance of many BVAB decreased, and Lactobacillus increased, in response to metronidazole treatment, but no changes in abundances of specific vaginal bacteria were unique to women who spontaneously cleared Ct infection.
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Affiliation(s)
- Caleb M. Ardizzone
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Christopher M. Taylor
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Evelyn Toh
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Rebecca A. Lillis
- Department of Medicine, Section of Infectious Diseases, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Jacob H. Elnaggar
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - John W. Lammons
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Patricia Dehon Mott
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Emily L. Duffy
- Department of Medicine, Section of Infectious Diseases, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Li Shen
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Alison J. Quayle
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
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Llaca-Díaz J, Medina-Loredo V, Huerta-López D, Casillas-Vega N. Sexually Transmitted Infections in Male Patients with Urethritis. Pathogens 2023; 12:1434. [PMID: 38133318 PMCID: PMC10748222 DOI: 10.3390/pathogens12121434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
(1) Background: Sexually Transmitted Infections (STIs) in men are a significant public health problem due to the consequences they can have, such as chronic diseases, infertility, cancer, and even death. This study aimed to determine the frequency of microorganisms associated with STIs in men with urethritis attending urology consultations, and to explore their clinical correlations. (2) Methods: A population that attended the urology consultation of the University Hospital "Dr. José E. González" was studied. Written consent was obtained, and interviews and clinical history were conducted about specific risk factors identifying signs and symptoms associated with any genitourinary condition; after that, urine samples were collected. Identification of C. trachomatis, N. gonorrhoeae, U. urealyticum, and M. genitalium was based on amplifying species-specific DNA fragments. (3) Results: A total of 200 patients were included. The mean age was 55 years (20-95). According to the interviews, only 32.5% (n = 65) had received prior sex education. Additionally, 75% (n = 150) do not usually use any protection during sexual intercourse. Regarding clinical factors, 69.4% (n = 138) presented burning or pain when urinating. Molecular analysis revealed the presence of C. trachomatis to be 9.5% (n = 19), with U. urealyticum at 13% (n = 26), and M. genitalium at 2% (n = 4). (4) Conclusions: This is the most extensive molecular epidemiological study of the frequency of STIs in men in Mexico in third-level care and its association with different risk factors. As reported globally, a similar frequency of C. trachomatis, U. urealyticum, and M. genitalium was detected.
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Affiliation(s)
| | | | | | - Néstor Casillas-Vega
- Departamento de Patología Clínica, Hospital Universitario “Dr. José Eleuterio González”, Universidad Autόnoma de Nuevo Leόn, Ave. Francisco I. Madero, Mitras Centro, Monterrey C.P. 64460, Mexico; (J.L.-D.); (V.M.-L.); (D.H.-L.)
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Zhong C, Li X, Teng Y, Tian J. Co-infection with human papillomavirus and sexually transmitted infections among Chinese individuals. Microb Pathog 2023; 185:106395. [PMID: 37852554 DOI: 10.1016/j.micpath.2023.106395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
OBJECTIVES This study aimed to investigate the prevalence of Human Papillomavirus (HPV), Sexually Transmitted Infections (STIs) and their co-infections on different genders and ages. METHODS Different samples of secretions from the reproductive system were collected from 459 males and 494 females for HPV and STI detection. RESULTS Total HPV infection rate was 49.46 % for males and 48.99 % for females, and the distribution of HPV subtypes varied significantly between different genders. The infection rate of HR-HPV 52 and 31 in females was higher than that in males (p = 0.002 and 0.039, respectively). In contrast, the infection rate of LR-HPV 6 and 11 in males was higher than that in females (p = 0.01 and 0.001, respectively). Females had a significantly higher infection rate of Ureaplasma urealyticum (UU). Besides, these STIs were stratified based on age and the results indicated that the highest incidence of STIs was observed in younger patients (<20 years old). Patients with HPV infections had a higher incidence of Chlamydia trachomatis (CT) in both males and females. CONCLUSIONS There is a need to perform HPV, CT and UU screening among patients, and more thorough health education for younger patients is of great clinical significance to improve treatment and prognosis.
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Affiliation(s)
- Chunyan Zhong
- Department of Clinical Laboratory, The Third People's Hospital of Hangzhou, Zhejiang, 310009, China
| | - Xinzheng Li
- Department of Clinical Laboratory, The Third People's Hospital of Hangzhou, Zhejiang, 310009, China
| | - Yong Teng
- Department of Clinical Laboratory, The Third People's Hospital of Hangzhou, Zhejiang, 310009, China
| | - Jiyun Tian
- Department of Clinical Laboratory, The Third People's Hospital of Hangzhou, Zhejiang, 310009, China.
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Ray A, Bhati T, Arora R, Rastogi S. Progesterone-mediated immunoregulation of cytokine signaling by miRNA-133a and 101-3p in Chlamydia trachomatis-associated recurrent spontaneous abortion. Mol Immunol 2023; 164:47-57. [PMID: 37952361 DOI: 10.1016/j.molimm.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/26/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023]
Abstract
miRNAs regulate the expression of various genes involved in cellular and metabolic pathways in pregnancy related complications including recurrent spontaneous abortion (RSA). Modulation of progesterone and associated pro-inflammatory cytokines by miRNAs in Chlamydia trachomatis-associated RSA is still under investigation. Present study aimed to evaluate the expression/correlation of serum-circulating miRNAs-133a, 101-3p, 320b, 146b-5p, 24, 559, progesterone and few cytokines in C. trachomatis-positive spontaneous aborters. Non-heparinized blood and urine was collected from 120 patients with history of RSA (Group I) and 120 patients with ≥ 2 successful deliveries (Group II) attending Department of Obstetrics and Gynecology, Safdarjung hospital, New Delhi, India. C. trachomatis detection was performed by PCR and chlamydial load by real time PCR. Progesterone concentration was estimated by ELISA. miRNAs and cytokine expression was studied by quantitative real-time PCR and correlated with progesterone expression. Twenty six patients were found to be positive for C. trachomatis. miRNAs- 133a, 101-3p showed maximum upregulation in infected versus control patients. miRNA expression showed positive correlation with chlamydial load. Progesterone concentration showed significant decrease while cytokines (IL-6, IFN-γ, TNF-α) were significantly upregulated in C. trachomatis-positive patients. Positive correlation was observed between expression of miRNAs-133a and 101-3p and cytokines while negative correlation was observed with progesterone in infected RSA patients. Correlation between progesterone and cytokines was found to be significantly negative in infected RSA patients. Although further validation is required, the study concludes that miR-133a and 101-3p are of clinical importance and have a role in immunoregulation of progesterone and cytokines in infection associated RSA.
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Affiliation(s)
- Ankita Ray
- Molecular Microbiology Laboratory, ICMR-National Institute of Pathology, Sriramachari Bhawan, Safdarjung Hospital campus, Post Box no. 4909, New Delhi 110029, India
| | - Tanu Bhati
- Molecular Microbiology Laboratory, ICMR-National Institute of Pathology, Sriramachari Bhawan, Safdarjung Hospital campus, Post Box no. 4909, New Delhi 110029, India
| | - Renu Arora
- Department of Obstetrics and Gynecology, Vardhman Mahavir Medical College (VMMC) and Safdarjung Hospital, New Delhi 110029, India
| | - Sangita Rastogi
- Molecular Microbiology Laboratory, ICMR-National Institute of Pathology, Sriramachari Bhawan, Safdarjung Hospital campus, Post Box no. 4909, New Delhi 110029, India.
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Filardo S, Di Pietro M, Bozzuto G, Fracella M, Bitossi C, Molinari A, Scagnolari C, Antonelli G, Sessa R. Interferon-ε as potential inhibitor of Chlamydia trachomatis infection. Microb Pathog 2023; 185:106427. [PMID: 37890679 DOI: 10.1016/j.micpath.2023.106427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 10/29/2023]
Abstract
Chlamydia trachomatis, the main cause of bacterial sexually transmitted diseases, is responsible for severe reproductive sequelae. Amongst all the cytokines involved in host immunity towards this pathogen, IFN-ε has recently acquired importance for its potential contribution to the female reproductive tract innate defenses. Herein, our study aimed to explore, for the first time, the activity of IFN-ε toward C. trachomatis in an in vitro infection model, by testing its effects on the different phases of chlamydial developmental cycle, as well as on the ultrastructural characteristics of chlamydial inclusions, via transmission electron microscopy. Main result is the capability of IFN-ε to alter C. trachomatis growth, as suggested by reduced infectious progenies, as well as a patchy distribution of bacteria and altered morphology of reticulate bodies within inclusions. In conclusion, our results suggest that IFN-ε could play a role in the innate and adaptive immune defenses against C. trachomatis; in the future, it will be needed to investigate its activity on an infection model more closely resembling the physiological environment of the female genital tract.
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Affiliation(s)
- Simone Filardo
- Department of Public Health and Infectious Diseases, Section of Microbiology, Sapienza University, P.le Aldo Moro, 5, 00185, Rome, Italy.
| | - Marisa Di Pietro
- Department of Public Health and Infectious Diseases, Section of Microbiology, Sapienza University, P.le Aldo Moro, 5, 00185, Rome, Italy.
| | - Giuseppina Bozzuto
- National Centre for Drug Research and Evaluation, Italian National Institute of Health, Viale Regina Elena, 299, 00161, Rome, Italy.
| | - Matteo Fracella
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Viale di Porta Tiburtina, 28, 00185, Rome, Italy.
| | - Camilla Bitossi
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Viale di Porta Tiburtina, 28, 00185, Rome, Italy.
| | - Agnese Molinari
- National Centre for Drug Research and Evaluation, Italian National Institute of Health, Viale Regina Elena, 299, 00161, Rome, Italy.
| | - Carolina Scagnolari
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Viale di Porta Tiburtina, 28, 00185, Rome, Italy.
| | - Guido Antonelli
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Viale di Porta Tiburtina, 28, 00185, Rome, Italy.
| | - Rosa Sessa
- Department of Public Health and Infectious Diseases, Section of Microbiology, Sapienza University, P.le Aldo Moro, 5, 00185, Rome, Italy.
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Dighe K, Moitra P, Gunaseelan N, Alafeef M, Jensen T, Rafferty C, Pan D. Highly-Specific Single-Stranded Oligonucleotides and Functional Nanoprobes for Clinical Determination of Chlamydia Trachomatis and Neisseria Gonorrhoeae Infections. Adv Sci (Weinh) 2023; 10:e2304009. [PMID: 37870167 PMCID: PMC10754082 DOI: 10.1002/advs.202304009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 09/18/2023] [Indexed: 10/24/2023]
Abstract
Early detection of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) is the key to controlling the spread of these bacterial infections. An important step in developing biosensors involves identifying reliable sensing probes against specific genetic targets for CT and NG. Here, the authors have designed single-stranded oligonucleotides (ssDNAs) targeting mutually conserved genetic regions of cryptic plasmid and chromosomal DNA of both CT and NG. The 5'- and 3'- ends of these ssDNAs are differentially functionalized with thiol groups and coupled with gold nanoparticles (AuNP) to develop absorbance-based assay. The AuNPs agglomerate selectively in the presence of its target DNA sequence and demonstrate a change in their surface plasmon resonance. The optimized assay is then used to detect both CT and NG DNA extracted from 60 anonymized clinical samples with a clinical sensitivity of ∼100%. The limit of detection of the assays are found to be 7 and 5 copies/µL for CT and NG respectively. Furthermore, it can successfully detect the DNA levels of these two bacteria without the need for DNA extraction and via a lateral flow-based platform. These assays thus hold the potential to be employed in clinics for rapid and efficient monitoring of sexually transmitted infections.
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Affiliation(s)
- Ketan Dighe
- Department of PediatricsCentre of Blood Oxygen Transport & HemostasisUniversity of Maryland Baltimore School of MedicineBaltimoreMaryland21201USA
- Department of Chemical & Biochemical EngineeringUniversity of Maryland Baltimore CountyBaltimore CountyMaryland21250USA
- Department of Biomedical EngineeringThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | - Parikshit Moitra
- Department of PediatricsCentre of Blood Oxygen Transport & HemostasisUniversity of Maryland Baltimore School of MedicineBaltimoreMaryland21201USA
- Department of Nuclear EngineeringThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | - Nivetha Gunaseelan
- Department of PediatricsCentre of Blood Oxygen Transport & HemostasisUniversity of Maryland Baltimore School of MedicineBaltimoreMaryland21201USA
- Department of Chemical & Biochemical EngineeringUniversity of Maryland Baltimore CountyBaltimore CountyMaryland21250USA
- Department of Biomedical EngineeringThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | - Maha Alafeef
- Department of PediatricsCentre of Blood Oxygen Transport & HemostasisUniversity of Maryland Baltimore School of MedicineBaltimoreMaryland21201USA
- Department of Chemical & Biochemical EngineeringUniversity of Maryland Baltimore CountyBaltimore CountyMaryland21250USA
- Department of Nuclear EngineeringThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | - Tor Jensen
- Cancer Center at IllinoisUniversity of Illinois Urbana‐Champaign405 N. Mathews Ave.UrbanaIL61801‐2325USA
| | - Carla Rafferty
- Department of Family MedicineCarle Health1818 E Windsor Rd.UrbanaIL61802USA
| | - Dipanjan Pan
- Department of PediatricsCentre of Blood Oxygen Transport & HemostasisUniversity of Maryland Baltimore School of MedicineBaltimoreMaryland21201USA
- Department of Chemical & Biochemical EngineeringUniversity of Maryland Baltimore CountyBaltimore CountyMaryland21250USA
- Department of Biomedical EngineeringThe Pennsylvania State UniversityUniversity ParkPA16802USA
- Department of Nuclear EngineeringThe Pennsylvania State UniversityUniversity ParkPA16802USA
- Department of Materials Science and EngineeringThe Pennsylvania State UniversityUniversity ParkPA16802USA
- Huck Institutes of the Life Sciences101 Huck Life Sciences BuildingUniversity ParkPA16802USA
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Soto Brito Y, Fonseca Castro DA, Guilarte Garcia E, Kouri Cardellá V, Ramirez Cardentey C, Mondeja Rodriguez BA, Concepción López JJ, Sánchez Alvarez MDL, López Pérez M, Gutierrez Coronado T, Torres Mosqueda K, Suárez Licor G. Chlamydia trachomatis infection in Cuban adolescent and young populations. Int J STD AIDS 2023; 34:1024-1033. [PMID: 37607391 DOI: 10.1177/09564624231191568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
BACKGROUND In Cuba, little is known regarding the prevalence of Chlamydia trachomatis (CT) infection in adolescents and young people. We study the frequency of CT infection in these populations, and its association with clinical-epidemiological variables. METHODS A total of 496 individuals aged 12 to 24 were recruited from November 2018 to November 2019. Of them, 302 were patients attending at sexually transmitted infections (STI) services and 194 were young volunteers. CT detections were carried out by real-time PCR and IgG serology. RESULTS The prevalence of CT using PCR was 9.1% (45/496); 12.3% (37/302) for subjects attending STI service and 4.1% (8/194) for young volunteers, being significantly higher in the first group (OR=3.25; p=.001). CT IgG antibodies was detected in 38.6% (81/210). Individuals from 12 to 17 years old were more likely infected with CT (OR=2.21; p=.010). Infection was associated with the early onset of sexual intercourse, the frequent changing of sexual partners and black ethnicity. CONCLUSIONS The results suggest that Cuban adolescents and young populations are at highest risk of acquiring CT infection and developing reproductive complications. The data obtained advise the needs of implementation of a routine CT screening strategy, for timely diagnosis, detection and treatment at the earliest ages.
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Affiliation(s)
- Yudira Soto Brito
- Sexually Transmitted Infections Laboratory, Department of Virology, "Pedro Kourí" Tropical Medicine Institute (IPK), Havana, Cuba
| | - Darien Alejandro Fonseca Castro
- Sexually Transmitted Infections Laboratory, Department of Virology, "Pedro Kourí" Tropical Medicine Institute (IPK), Havana, Cuba
| | - Elias Guilarte Garcia
- Sexually Transmitted Infections Laboratory, Department of Virology, "Pedro Kourí" Tropical Medicine Institute (IPK), Havana, Cuba
| | - Vivian Kouri Cardellá
- Sexually Transmitted Infections Laboratory, Department of Virology, "Pedro Kourí" Tropical Medicine Institute (IPK), Havana, Cuba
| | - Celeste Ramirez Cardentey
- Sexually Transmitted Infections Laboratory, Department of Virology, "Pedro Kourí" Tropical Medicine Institute (IPK), Havana, Cuba
| | | | | | | | - Maida López Pérez
- Mariana Grajales" Gyneco-obstetric University Hospital, Santa Clara, Cuba
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Gautam H, Mehta S, Nayar N, Kumar N, Husain SA, Bharadwaj M. Prevalence of human papilloma virus and Chlamydia trachomatis in endometrial and cervical carcinoma: a comparative study in North Indian women. Syst Biol Reprod Med 2023; 69:399-409. [PMID: 37668557 DOI: 10.1080/19396368.2023.2247517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/18/2023] [Accepted: 08/07/2023] [Indexed: 09/06/2023]
Abstract
Cervical cancer (Cacx) is the second and endometrial cancer (Ec) is the third most common gynecological cancer worldwide. The present study aims to understand the complex and unexplored conditions occurring in cervix and endometrium of the female genital tract caused due to the infection of the human papilloma viruses (HPVs) and Chlamydia trachomatis (CT). A total of 300 tissue biopsy samples of cervix and endometrium were included in the present study and tested for the presence of HPV and CT deoxyribonucleic acid (DNA) by using polymerase chain reaction (PCR) technique. The odds ratios and 95% confidence interval were considered for the calculation of the association of HPV and CT infection with the risk of cervical or Ec. Among endometrial patients, samples were 5% positive for HPV and 5% positive for CT infection. Among endometrial control group, no sample was found positive for either HPV or CT infection. Among cervical patients, 72% samples were positive for only HPV infection and 1% samples were positive for only CT infection. Among control group, 7% of samples were positive for only HPV infection and 3% were positive for only CT infection. The co-infection of CT with HPV in 9% of Cacx cases and in 2% of cervical control samples was also observed. This is the first study in Indian women to detect the prevalence of HPV and CT infections in endometrium cases and control. An updated estimate regarding the HPV and CT prevalence in cervix cases and control samples was also provided.
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Affiliation(s)
- Heena Gautam
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
- Division of Molecular Genetics and Biochemistry, Molecular Biology Group, ICMR-National Institute of Cancer Prevention and Research, Noida, India
| | - Sumita Mehta
- Department of Obstetrics & Gynecology, Babu Jagjivan Ram Memorial Hospital, New Delhi, India
| | - Nidhi Nayar
- Gynecologic Oncology, BLK-Max Super Speciality Hospital, New Delhi, India
| | - Neha Kumar
- Gynecologic Oncology, BLK-Max Super Speciality Hospital, New Delhi, India
| | | | - Mausumi Bharadwaj
- Division of Molecular Genetics and Biochemistry, Molecular Biology Group, ICMR-National Institute of Cancer Prevention and Research, Noida, India
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Harding-Esch EM, Burgert-Brucker CR, Jimenez C, Bakhtiari A, Willis R, Dejene Bejiga M, Mpyet C, Ngondi J, Boyd S, Abdala M, Abdou A, Adamu Y, Alemayehu A, Alemayehu W, Al-Khatib T, Apadinuwe SC, Awaca N, Awoussi MS, Baayendag G, Badiane Mouctar D, Bailey RL, Batcho W, Bay Z, Bella A, Beido N, Bol YY, Bougouma C, Brady CJ, Bucumi V, Butcher R, Cakacaka R, Cama A, Camara M, Cassama E, Chaora SG, Chebbi AC, Chisambi AB, Chu B, Conteh A, Coulibaly SM, Courtright P, Dalmar A, Dat TM, Davids T, DJAKER MEA, de Fátima Costa Lopes M, Dézoumbé D, Dodson S, Downs P, Eckman S, Elshafie BE, Elmezoghi M, Elvis AA, Emerson P, Epée EEE, Faktaufon D, Fall M, Fassinou A, Fleming F, Flueckiger R, Gamael KK, Garae M, Garap J, Gass K, Gebru G, Gichangi MM, Giorgi E, Goépogui A, Gómez DVF, Gómez Forero DP, Gower EW, Harte A, Henry R, Honorio-Morales HA, Ilako DR, Issifou AAB, Jones E, Kabona G, Kabore M, Kadri B, Kalua K, Kanyi SK, Kebede S, Kebede F, Keenan JD, Kello AB, Khan AA, KHELIFI H, Kilangalanga J, KIM SH, Ko R, Lewallen S, Lietman T, Logora MSY, Lopez YA, MacArthur C, Macleod C, Makangila F, Mariko B, Martin DL, Masika M, Massae P, Massangaie M, Matendechero HS, Mathewos T, McCullagh S, Meite A, Mendes EP, Abdi HM, Miller H, Minnih A, Mishra SK, Molefi T, Mosher A, M’Po N, Mugume F, Mukwiza R, Mwale C, Mwatha S, Mwingira U, Nash SD, NASSA C, Negussu N, Nieba C, Noah Noah JC, Nwosu CO, Olobio N, Opon R, Pavluck A, Phiri I, Rainima-Qaniuci M, Renneker KK, Saboyá-Díaz MI, Sakho F, Sanha S, Sarah V, Sarr B, Szwarcwald CL, Shah Salam A, Sharma S, Seife F, Serrano Chavez GM, Sissoko M, Sitoe HM, Sokana O, Tadesse F, Taleo F, Talero SL, Tarfani Y, Tefera A, Tekeraoi R, Tesfazion A, Traina A, Traoré L, Trujillo-Trujillo J, Tukahebwa EM, Vashist P, Wanyama EB, WARUSAVITHANA SD, Watitu TK, West S, Win Y, Woods G, YAJIMA A, Yaya G, Zecarias A, Zewengiel S, Zoumanigui A, Hooper PJ, Millar T, Rotondo L, Solomon AW. Tropical Data: Approach and Methodology as Applied to Trachoma Prevalence Surveys. Ophthalmic Epidemiol 2023; 30:544-560. [PMID: 38085791 PMCID: PMC10751062 DOI: 10.1080/09286586.2023.2249546] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 08/11/2023] [Indexed: 12/18/2023]
Abstract
PURPOSE Population-based prevalence surveys are essential for decision-making on interventions to achieve trachoma elimination as a public health problem. This paper outlines the methodologies of Tropical Data, which supports work to undertake those surveys. METHODS Tropical Data is a consortium of partners that supports health ministries worldwide to conduct globally standardised prevalence surveys that conform to World Health Organization recommendations. Founding principles are health ministry ownership, partnership and collaboration, and quality assurance and quality control at every step of the survey process. Support covers survey planning, survey design, training, electronic data collection and fieldwork, and data management, analysis and dissemination. Methods are adapted to meet local context and needs. Customisations, operational research and integration of other diseases into routine trachoma surveys have also been supported. RESULTS Between 29th February 2016 and 24th April 2023, 3373 trachoma surveys across 50 countries have been supported, resulting in 10,818,502 people being examined for trachoma. CONCLUSION This health ministry-led, standardised approach, with support from the start to the end of the survey process, has helped all trachoma elimination stakeholders to know where interventions are needed, where interventions can be stopped, and when elimination as a public health problem has been achieved. Flexibility to meet specific country contexts, adaptation to changes in global guidance and adjustments in response to user feedback have facilitated innovation in evidence-based methodologies, and supported health ministries to strive for global disease control targets.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Amza Abdou
- Programme National de Santé Oculaire, Niger
| | | | | | | | | | | | - Naomie Awaca
- Ministère de la Santé Publique, Democratic Republic of Congo
| | | | | | | | | | | | | | | | | | | | - Clarisse Bougouma
- Programme national de lutte contre les maladies tropicales négligées (PNMTN), Burkina Faso
| | | | - Victor Bucumi
- National Integrated Programme for the Control of Neglected Tropical Diseases and Blindness (PNIMTNC), Burundi
| | | | | | | | | | | | | | | | | | - Brian Chu
- International Trachoma Initiative, USA
| | | | | | - Paul Courtright
- Division of Ophthalmology, University of Cape Town, Cape Town, South Africa, South Africa
| | - Abdi Dalmar
- Ministry of Human Development and Public Services, Somalia
| | | | | | | | | | | | | | | | | | | | | | - Ange Aba Elvis
- Programme National de la Santé Oculaire et de la lutte contre l’Onchocercose, Côte d’Ivoire
| | | | | | | | | | | | | | | | | | | | - Jambi Garap
- Port Moresby General Hospital, Papua New Guinea
| | | | | | | | | | | | | | | | | | - Anna Harte
- London School of Hygiene & Tropical Medicine, UK
| | - Rob Henry
- U.S. Agency for International Development, USA
| | | | | | | | | | | | - Martin Kabore
- Programme national de lutte contre les maladies tropicales négligées (PNMTN), Burkina Faso
| | | | - Khumbo Kalua
- Blantyre Institute for Community Outreach, Malawi
| | | | | | | | | | | | | | | | | | | | - Robert Ko
- Port Moresby General Hospital, Papua New Guinea
| | - Susan Lewallen
- Division of Ophthalmology, University of Cape Town, Cape Town, South Africa, South Africa
| | | | | | - Yuri A Lopez
- SACAICET / MINISTERIO DEL PODER POPULAR PARA LA SALUD, Venezuela
| | | | | | | | | | | | | | | | | | | | | | | | - Aboulaye Meite
- Ministère de la Santé et de l’Hygiène Publique, Cote d’Ivoire
| | | | | | | | | | | | | | - Aryc Mosher
- U.S. Agency for International Development, USA
| | | | | | | | | | | | | | | | | | | | - Cece Nieba
- Ministère de la Santé et de l’Hygiene Publique, Guinea
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Oliver Sokana
- Solomon Islands Ministry of Health and Medical Services, Solomon Islands
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Jiang M, Ding H, He L, Xu D, Jiang P, Tang H, Wang Q, Wang X, Tang L. Association between co-infection with Chlamydia trachomatis or Mycoplasma genitalium and cervical lesions in HPV-positive population in Hunan, China: a cross-sectional study. Infect Agent Cancer 2023; 18:76. [PMID: 38031114 PMCID: PMC10688104 DOI: 10.1186/s13027-023-00544-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 10/05/2023] [Indexed: 12/01/2023] Open
Abstract
OBJECTIVES The aim of this study was to determine the prevalence of Chlamydia trachomatis (CT) and Mycoplasma genitalium (MG) among HPV-positive women undergoing colposcopy at the Second Xiangya Hospital of Central South University, Hunan, China. Additionally, we aimed to assess the impact of C. trachomatis or M. genitalium co-infection with HPV on the severity of cervical lesions. METHODS We collected HPV data, cervical cytology results, and demographic information from 439 women attending colposcopy. Cervical swabs were obtained for simultaneous amplification testing (SAT) of C. trachomatis and M. genitalium. Multivariate logistic regression analyses were performed to examine the association between sexually transmitted pathogens and cervical lesions. RESULTS Among the participants, C. trachomatis was detected in 17 (3.87%) individuals, and M. genitalium in 16 (3.64%) individuals. There was no co-infection of C. trachomatis and M. genitalium. The highest prevalence of M. genitalium was observed in women aged 19-30 years (10.20%; 95% CI, 1.41-18.99%), with a subsequent decline in prevalence with increasing age (Ptrend = 0.014). The most common HPV subtype in our study was HPV52 (30.79%), followed by HPV16 (18.62%), HPV58 (16.95%), and HPV53 (10.02%). Infection with HPV16 (OR = 3.43, 95% CI, 2.13-5.53), HPV31 (OR = 3.70, 95% CI, 1.44-9.50), and HPV33 (OR = 3.71, 95% CI, 1.43-9.67) was associated with an increased severity of cervical lesions, while HPV53 infection was not likely to lead to advanced cervical lesions (OR = 0.45, 95% CI, 0.23-0.89). The leukocyte level in vaginal secretions (P = 0.042) and cervical cytology results (P < 0.001) showed associations with the degree of cervical lesions. However, there was no significant association between C. trachomatis or M. genitalium infection and the severity of cervical lesions, nor with their co-infection with HPV16. CONCLUSIONS There was no correlation between co-infection of Chlamydia trachomatis or Mycoplasma genitalium and the degree of cervical lesions in HPV-positive population in Hunan, China. Our findings emphasized the need to pay more attention to M. genitalium infection among young women. Increased levels of leukocytes in vaginal secretions may be linked to cervical lesions. HPV16, HPV31, and HPV33 in Hunan province, China, may exhibit higher cervical pathogenicity.
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Affiliation(s)
- Mengjie Jiang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Ding
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ling He
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Danning Xu
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ping Jiang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Haoneng Tang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qian Wang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuemei Wang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lingli Tang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Meneses-León J, Hernández-López R, Hernández-Salazar S, Torres-Ibarra L, Rivera-Paredez B, León-Maldonado L, Magis-Rodríguez C, Lazcano-Ponce E, Salmerón J. Prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae infections in Tlaxcala, Mexico. Epidemiol Infect 2023; 151:e198. [PMID: 38012851 PMCID: PMC10728986 DOI: 10.1017/s0950268823001899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/30/2023] [Accepted: 11/07/2023] [Indexed: 11/29/2023] Open
Abstract
Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) are widely recognised as two prevalent sexually transmitted infections that can have detrimental effects on women's reproductive health. Previous research has concentrated on studying high-risk populations, resulting in limited epidemiological data regarding the general population. Therefore, the objective of this study was to estimate the prevalence of CT and NG among women attending public primary health care in Tlaxcala, Mexico. The study sample included 2,396 women already participating in the cervical cancer screening programme, from July to November 2014. After obtaining informed consent, the CT and NG tests were conducted on cervical samples, using a nucleic acid amplification test. We estimate the prevalence with 95% confidence intervals (CIs). Women who tested positive were promptly notified and provided with appropriate treatment. In our study population, CT and NG prevalences were 3.2 (95% CI: 2.6-4.0) and 0.01 (95% CI: 0.01-0.03), respectively. CT prevalence was higher in younger women (age < 40), although the results indicate a low prevalence; due to the potentially significant impact of CT and NG on women's health, we require adequate surveillance, and guaranteeing rapid referral to the correct treatment is a priority for the control of these diseases.
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Affiliation(s)
- Joacim Meneses-León
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Rubí Hernández-López
- Oficina de Análisis del Plan de Salud, Subgerencia Técnica del Plan de Salud, Gerencia de Administración del Plan de Salud, Banco de México, Ciudad de México, México
| | - Sonia Hernández-Salazar
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Berenice Rivera-Paredez
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Leith León-Maldonado
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Carlos Magis-Rodríguez
- Facultad de Medicina, Departamento de Salud Pública, Universidad Nacional Autónoma de México, Ciudad de México, México
| | | | - Jorge Salmerón
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
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