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Muhandiram S, Karunarathna TK, Siriweera EH, Ratnayake CJ, Kodithuwakku SP. Molecular detection of human papillomavirus prevalence in clinically normal females and identification of high-risk HPV 16 and 18 under low resources setting: a cohort study from Sri Lanka. Virusdisease 2024; 35:271-280. [PMID: 39071871 PMCID: PMC11269543 DOI: 10.1007/s13337-024-00875-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 05/22/2024] [Indexed: 07/30/2024] Open
Abstract
High oncogenic risk types of human papillomaviruses are mainly transmitted via sexual contact and are the main cause of cervical cancer in females in developing countries. Molecular detection of HPV infection enables early cancer detection; however, it is not widely used in low-income countries due to resource constraints. The aim of this study was to assess economical yet sensitive HPV detection and genotyping assays for both physician and self-collected cervical samples in a resource limited diagnostic setting. A previously reported polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) based HPV detection and genotyping protocol was verified using direct DNA sequencing to accurately identify the HPV 16 and 18 genotypes in a routine-diagnostic set-up. Then the HPV prevalence in a cohort of 433 clinically normal females was performed using PCR-RFLP diagnostic tool. Finally, the performance of the PCR-RFLP HPV screening tool was further evaluated against self-collected samples. HPV 16 and 18 genotyping with the PCR-RFLP consistently agreed with the sequencing data. The HPV prevalence in the screening cohort was 5.8%. HPV 16 and 18 were the most common high-risk HPV genotypes detected in the study cohort. Self-sampling vs physician collected samples from the same subject resulted in an overall concordance of 93% for HPV detection. The PCR-RFLP protocol can be used effectively under low resource settings for HPV 16/18 diagnosis and genotyping. The self-sampling approach can be recommended to increase HPV screening among women in Sri Lanka. Supplementary Information The online version contains supplementary material available at 10.1007/s13337-024-00875-w.
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Affiliation(s)
- Subhashini Muhandiram
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Peradeniya, Peradeniya, 20400 Sri Lanka
| | - Thusitha K. Karunarathna
- Department of Animal Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, 20400 Sri Lanka
| | - Eranga H. Siriweera
- Department of Veterinary Public Health Pharmacology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, 20400 Sri Lanka
| | - Chathura J. Ratnayake
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Peradeniya, Peradeniya, 20400 Sri Lanka
| | - Suranga P. Kodithuwakku
- Department of Animal Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, 20400 Sri Lanka
- Department of Pathology, Faculty of Medicine, University of Peradeniya, Peradeniya, 20400 Sri Lanka
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Suehiro TT, Gimenes F, Souza RP, Taura SKI, Cestari RCC, Irie MMT, Boer CG, Consolaro MEL, Silva VRSD. High molecular prevalence of HPV and other sexually transmitted infections in a population of asymptomatic women who work or study at a Brazilian university. Rev Inst Med Trop Sao Paulo 2021; 63:e1. [PMID: 33503149 PMCID: PMC7816866 DOI: 10.1590/s1678-9946202163001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 12/04/2020] [Indexed: 01/22/2023] Open
Abstract
Sexually transmitted infections (STIs) represent a global health problem with
variable prevalence depending on the geographical region and the type of
population. Human papillomavirus (HPV) encompasses widespread virus types
related to cervical carcinogenesis. The present study investigated the molecular
prevalence of HPV and seven other important STIs in asymptomatic women working
or studying at a Brazilian university. A secondary aim was to assess cytological
abnormalities associated with HPV and other STIs coinfections. We recruited 210
women from a Brazilian university. HPV was detected using a single-round
polymerase chain reaction (sPCR) followed by a viral genotyping by restriction
fragment length polymorphism (RFLP-PCR). The presence of seven STIs:
Chlamydia trachomatis, Neisseria gonorrhoeae, Treponema pallidum,
Trichomonas vaginalis, Mycoplasma genitalium, herpes simplex virus
(HSV)-1 and HSV-2 was detected by multiplex PCR (M-PCR). Furthermore,
cytological findings and epidemiological characteristics were evaluated.The mean
age of the participants was 27.1 years old. HPV prevalence was 33.8%, and HPV16
was the most frequently detected papillomavirus genotype. Moreover, multiple HPV
infections were common (42.2%). We detected at least one STI agent in 11.4% of
the tested women, most frequently C. trachomatis (6.7%). Among
HPV-positive women, 14.1% were coinfected with other STI agents. Cytological
abnormalities were observed in 9.5% of smears, and HPV-DNA, high-risk HPV
(HR-HPV), HPV16 and HPV multiple infections were associated with abnormal
cytological findings. There was a high prevalence of HPV, and C.
trachomatis was the most prevalent STI agent, with low rates of
cytological abnormalities. These findings highlight the need of timely STI
diagnosis in young asymptomatic women and of a public policy design for STI
prevention.
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Affiliation(s)
- Tamy Taianne Suehiro
- Universidade Estadual de Maringá, Departamento de Análises Clínicas e Biomedicina, Maringá, Paraná, Brazil
| | - Fabrícia Gimenes
- Universidade Estadual de Maringá, Departamento de Análises Clínicas e Biomedicina, Maringá, Paraná, Brazil
| | - Raquel Pantarotto Souza
- Universidade Estadual de Maringá, Departamento de Análises Clínicas e Biomedicina, Maringá, Paraná, Brazil
| | - Sergio Ken Iti Taura
- Hospital Universitário Regional de Maringá, Ambulatório Médico e de Enfermagem, Maringá, Paraná, Brazil
| | | | - Mary Mayumi Taguti Irie
- Universidade Estadual de Maringá, Departamento de Análises Clínicas e Biomedicina, Maringá, Paraná, Brazil
| | - Cinthia Gandolfi Boer
- Universidade Estadual de Maringá, Departamento de Análises Clínicas e Biomedicina, Maringá, Paraná, Brazil
| | | | - Vânia Ramos Sela da Silva
- Universidade Estadual de Maringá, Departamento de Análises Clínicas e Biomedicina, Maringá, Paraná, Brazil
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Identification of Pneumococcal Serotypes by PCR-Restriction Fragment Length Polymorphism. Diagnostics (Basel) 2019; 9:diagnostics9040196. [PMID: 31752204 PMCID: PMC6963424 DOI: 10.3390/diagnostics9040196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/13/2019] [Accepted: 11/15/2019] [Indexed: 11/30/2022] Open
Abstract
Streptococcus pneumoniae shows more than 90 capsular serotypes that can be distinguished by their reactivity against antisera. The main objective of this work was the development of a molecular method for serotyping without the use of antisera. A computer program containing an algorithm was used to search in a database for potentially useful enzymes for Restriction Fragment Length Polymorphism-RFLP typing, in order to maximize the discrimination between different serotypes. DNA sequences of 90 serotypes for the region between dexB and aliA genes were compiled, and a computer screening of restriction enzymes was performed. The wzg–wzh–wzd–wze region and Sse9I restriction predicted unique PCR-RFLP patterns for 39 serotypes and eight serogroups. A second restriction enzyme resolved fragment specific patterns for 25 serotypes. The method was tested with 98 serotype-unknown clinical isolates. PCR-RFLP analysis deduced correct serotypes that were confirmed by Quellung reaction for 78.5% of the isolates.
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FOXP3 immunoregulatory gene variants are independent predictors of human papillomavirus infection and cervical cancer precursor lesions. J Cancer Res Clin Oncol 2019; 145:2013-2025. [DOI: 10.1007/s00432-019-02951-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 06/01/2019] [Indexed: 12/16/2022]
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Suehiro TT, Malaguti N, Damke E, Uchimura NS, Gimenes F, Souza RP, Sela da Silva VR, Lopes Consolaro ME. Association of human papillomavirus and bacterial vaginosis with increased risk of high-grade squamous intraepithelial cervical lesions. Int J Gynecol Cancer 2019; 29:242-249. [PMID: 30630884 DOI: 10.1136/ijgc-2018-000076] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/14/2018] [Accepted: 11/16/2018] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE To assess the rates of co-infections between human papillomavirus (HPV) and 13 key markers of bacterial vaginosis in cervical samples by multiplex polymerase chain reaction in a population with a high rate of abnormal cytology and a positive HPV test. METHODS The study included a total of 213 women aged 18-72 years screened using Papanicolaou smears for determining cervical abnormalities and for HPV and bacterial vaginosis by single-target and multiplex polymerase chain reaction. RESULTS A total of 83 (39%) women were negative for intraepithelial lesion or malignancy cytology and 130 (61%) had abnormal cytology. HPV-DNA prevalence was 69.9% and bacterial vaginosis was 72.7 %. Co-infections between bacterial vaginosis with HPV-DNA and high-risk HPV were associated with an increased risk for squamous intraepithelial lesions of low-grade cytology and high-grade squamous intraepithelial lesions plus cervical cancer. The most frequent bacterial vaginosis agent was Gardnerella vaginalis (33.8%), and co-infection with HPV-DNA and high-risk HPV increased the risk for squamous intraepithelial lesions of low grade cytology and high-grade squamous intraepithelial lesions plus cervical cancer. Co-infection between Megasphaera type I and high-risk HPV increased the risk for high-grade squamous intraepithelial lesions plus cervical cancer. CONCLUSIONS Our results reinforce the hypothesis that some bacterial vaginosis agents may play a role as co-factors in HPV-mediated cervical carcinogenesis, at least in some populations.
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Affiliation(s)
- Tamy Tiemi Suehiro
- Department of Clinical Analysis and Biomedicine, Clinical Cytology Laboratory, State University of Maringá (UEM), Paraná, Brazil
| | - Natália Malaguti
- Department of Clinical Analysis and Biomedicine, Clinical Cytology Laboratory, State University of Maringá (UEM), Paraná, Brazil
| | - Edilson Damke
- Department of Clinical Analysis and Biomedicine, Clinical Cytology Laboratory, State University of Maringá (UEM), Paraná, Brazil
| | - Nelson Shozo Uchimura
- Department of Clinical Analysis and Biomedicine, Clinical Cytology Laboratory, State University of Maringá (UEM), Paraná, Brazil
| | - Fabrícia Gimenes
- Department of Medicine, State University of Maringá, Paraná, Brazil
| | - Raquel Pantarotto Souza
- Department of Clinical Analysis and Biomedicine, Clinical Cytology Laboratory, State University of Maringá (UEM), Paraná, Brazil
| | - Vânia Ramos Sela da Silva
- Department of Clinical Analysis and Biomedicine, Clinical Cytology Laboratory, State University of Maringá (UEM), Paraná, Brazil
| | - Marcia Edilaine Lopes Consolaro
- Department of Clinical Analysis and Biomedicine, Clinical Cytology Laboratory, State University of Maringá (UEM), Paraná, Brazil
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Rocha RM, Souza RP, Gimenes F, Consolaro MEL. The high-risk human papillomavirus continuum along the female reproductive tract and its relationship to infertility and endometriosis. Reprod Biomed Online 2019; 38:926-937. [PMID: 30940433 DOI: 10.1016/j.rbmo.2018.11.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/14/2018] [Accepted: 11/23/2018] [Indexed: 12/15/2022]
Abstract
RESEARCH QUESTION Is there an association between the presence of sexually transmitted pathogens in the lower (LGT) and upper (UGT) female genital tract with endometriosis and infertility? DESIGN Case-control study with 60 women submitted to gynaecological laparoscopic surgery. Samples from the UGT and LGT were collected and analysed by single polymerase chain reaction (PCR) for human papillomavirus (HPV) and by multiplex PCR for other sexually transmitted infections (STI). Patients were initially divided into two clinical groups: infertile patients (n = 25) with conjugal infertility and fertile control patients (n = 35). After the surgical findings patients were further divided for additional analysis: an endometriosis group (n = 29) and non-endometriosis control group (n = 31). RESULTS Sixty per cent of patients were positive for DNA-HPV in some of the genital tract sites sampled. Infertile patients were associated with high-risk HPV (hrHPV) positivity in the UGT sites (P = 0.027). The endometriosis group was associated with hrHPV positivity in the LGT and UGT sites (P = 0.0002 and P = 0.03, respectively). Only hrHPV types were detected in the UGT in both groups. It may be that there is a hrHPV infection continuum, from LGT to UGT, in infertile and endometriosis patients. No association was observed among the other seven STI studied. CONCLUSIONS This study shows both an association between hrHPV infections in the UGT with infertility and endometriosis, and a possible hrHPV infection continuum, from LGT to UGT. Larger studies are needed to fully investigate the role of hrHPV as a cause of endometriosis and infertility.
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Affiliation(s)
- Rodrigo M Rocha
- Reproductive Endocrinology and Infertility, Medicine School, State University of Western Paraná, Cascavel PR, Brazil; Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil
| | - Raquel P Souza
- Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil
| | - Fabrícia Gimenes
- Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil
| | - Marcia E L Consolaro
- Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil.
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Bahls L, Yamakawa R, Zanão K, Alfieri D, Flauzino T, Delongui F, de Abreu A, Souza R, Gimenes F, Reiche E, Borelli S, Consolaro M. Human Leukocyte Antigen Class I and Class II Polymorphisms and Serum Cytokine Profiles in Cervical Cancer. Int J Mol Sci 2017; 18:ijms18091478. [PMID: 28858203 PMCID: PMC5618471 DOI: 10.3390/ijms18091478] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/23/2017] [Accepted: 07/04/2017] [Indexed: 12/24/2022] Open
Abstract
Only a small proportion of women who are exposed to infection with high-risk human papillomavirus (HR-HPV) progress to persistent infection and develop cervical cancer (CC). The immune response and genetic background of the host may affect the risk of progression from a HR-HPV infection to lesions and cancer. However, to our knowledge, no studies has been conducted to evaluate the relationship between variability of human leukocyte antigens (HLA) genes and serum cytokine expression in this pathology. In the current study, we examined the associations of HLA alleles and haplotypes including Class I (HLA-A, -B and -C) and II (HLA-DRB1, -DQA1 and -DQB1) with serum levels of cytokines interleukin (IL)-6, tumor necrosis factor-α (TNF-α), IL-10 and IL-17 as well as risks of HPV infections, lesions and CC among admixed Brazilian women. HLA polymorphisms were associated with an increased risk or protection from HPV, lesions and CC. Additionally, we demonstrated a potential association of a HLA class I haplotype (HLA-B*14-C*08) with higher IL-10 cytokine serum levels in cervical disease, suggesting an association between HLA class I and specific cytokines in cervical carcinogenesis. However, larger studies with detailed HPV types coupled with genetic data are needed to further evaluate the effects of HLA and CC by HPV genotype.
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Affiliation(s)
- Larissa Bahls
- Laboratory of Immunogenetics, Department of Basic Health Sciences, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
- Laboratory of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
- Post Graduate Program of Biosciences and Physiopathology, Clinical Analysis and Biomedicine Department, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
| | - Roger Yamakawa
- Laboratory of Immunogenetics, Department of Basic Health Sciences, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
| | - Karina Zanão
- Laboratory of Immunogenetics, Department of Basic Health Sciences, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
| | - Daniela Alfieri
- Laboratory of Clinical and Toxicological Analysis, Department of Pathology, State University of Londrina (UEL), 86057-970 Londrina, PR, Brazil.
| | - Tamires Flauzino
- Laboratory of Clinical and Toxicological Analysis, Department of Pathology, State University of Londrina (UEL), 86057-970 Londrina, PR, Brazil.
| | - Francieli Delongui
- Laboratory of Clinical and Toxicological Analysis, Department of Pathology, State University of Londrina (UEL), 86057-970 Londrina, PR, Brazil.
| | - André de Abreu
- Laboratory of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
| | - Raquel Souza
- Laboratory of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
- Post Graduate Program of Biosciences and Physiopathology, Clinical Analysis and Biomedicine Department, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
| | - Fabrícia Gimenes
- Laboratory of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
| | - Edna Reiche
- Laboratory of Clinical and Toxicological Analysis, Department of Pathology, State University of Londrina (UEL), 86057-970 Londrina, PR, Brazil.
| | - Sueli Borelli
- Laboratory of Immunogenetics, Department of Basic Health Sciences, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
| | - Marcia Consolaro
- Laboratory of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
- Post Graduate Program of Biosciences and Physiopathology, Clinical Analysis and Biomedicine Department, State University of Maringá (UEM), 87020-900 Maringá, PR, Brazil.
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Damke E, Kurscheidt FA, Balani VA, Takeda KI, Irie MMT, Gimenes F, Consolaro MEL. Male Partners of Infertile Couples with Seminal Infections of Human Papillomavirus Have Impaired Fertility Parameters. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4684629. [PMID: 28835893 PMCID: PMC5556607 DOI: 10.1155/2017/4684629] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 06/11/2017] [Accepted: 07/02/2017] [Indexed: 02/06/2023]
Abstract
Several studies have addressed the impact of viral infections on male infertility. However, it is still unknown whether human papillomavirus (HPV) can alter seminal parameters. The aim of this study was to determine the prevalence of HPV in the semen of male partners of couples seeking fertility evaluation. Additionally, we assessed the possibility that HPV infections affect seminal parameters. A total of 229 semen samples were collected from men in the Sperm Analysis Section of São Camilo Laboratory of Maringá, Brazil, between October 2015 and March 2016. Basic seminal parameters were analyzed, and HPV was detected and genotyped by polymerase chain reaction. HPV DNA was detected in 16.6% of samples. Of these, 10.5% had single type HPV infections, 6.1% had multiple HPV infections, 5.7% had exclusively high-risk HPV, and 6.1% had exclusively low-risk HPV. Samples positive for single and multiple types of HPV were associated with abnormal viscosity, and samples positive for multiple HPV types were also associated with hypospermia, higher pH, and increased leukocyte numbers. These findings suggest that the male partners of infertile couples with seminal HPV infections may have prostate disturbances indicative of glandular dysfunction, which may influence fertility.
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Affiliation(s)
- Edilson Damke
- Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil
| | - Fábio A. Kurscheidt
- Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil
- Sperm Analysis Section, São Camilo Laboratory, Maringá, PR, Brazil
| | | | - Karen I. Takeda
- Sperm Analysis Section, São Camilo Laboratory, Maringá, PR, Brazil
| | - Mary M. T. Irie
- Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil
| | - Fabrícia Gimenes
- Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil
| | - Marcia E. L. Consolaro
- Clinical Cytology and STD Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, PR, Brazil
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Cong X, Sun R, Zhang X, Wang Y, Wang L, Yu Y. Correlation of human papillomavirus types with clinical features of patients with condyloma acuminatum in China. Int J Dermatol 2015; 55:775-80. [PMID: 26475783 DOI: 10.1111/ijd.12964] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 12/03/2014] [Accepted: 01/02/2015] [Indexed: 12/01/2022]
Abstract
BACKGROUND Condyloma acuminatum (CA)-related human papillomavirus (HPV) typing has focused on the prevalence of HPV types. The correlation between HPV types and the clinical features of CA has rarely been documented. AIMS The purpose of this study was to investigate the relationship between HPV types and the clinical features of CA. METHODS Polymerase chain reaction-restriction fragment length polymorphism was used to type HPV in the CA lesions from 80 Chinese patients with full clinical data. RESULTS We determined that HPV6 and HPV11 single infections were the most frequent and accounted for 38.7 and 36.3%, respectively. Multiple infections caused by HPV6, HPV11, HPV16, HPV18, and/or HPV31 accounted for the remaining 25%. We were the first to document the HPV11 and HPV31 co-infection in a patient with colon carcinoma infected anal CA in China. The statistical analysis demonstrated that multiple HPV infections predisposed an individual to more warts, larger warts, a longer disease course, and a greater frequency of recurrence. The cases infected with the high-risk type, HPV16, accounted for 60% of the multiple infections and had a higher relapse rate than any other type of HPV infection. CONCLUSIONS Compared with a single HPV type infection, multiple HPV infections in CA were related to a more severe disease and a worse prognosis. These data provide useful information for the treatment and prognosis of CA. Mapping the proportion of CA caused by the virus types pre-vaccination enables the prediction of the vaccination benefits regarding CA burden reduction.
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Affiliation(s)
- Xianling Cong
- Departments of Immunology and Molecular Biology, Basic Medical College, Jilin University, Changchun, China.,Department of Dermatology in China-Japan Union Hospital, Jilin University, Changchun, China
| | - Ran Sun
- Scientific Research Center in China-Japan Union Hospital, Jilin University, Changchun, China
| | - Xuewen Zhang
- Scientific Research Center in China-Japan Union Hospital, Jilin University, Changchun, China
| | - Yuqian Wang
- Scientific Research Center in China-Japan Union Hospital, Jilin University, Changchun, China
| | - Liying Wang
- Departments of Immunology and Molecular Biology, Basic Medical College, Jilin University, Changchun, China
| | - Yongli Yu
- Departments of Immunology and Molecular Biology, Basic Medical College, Jilin University, Changchun, China
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Simultaneous detection of human papillomavirus integration and c-MYC gene amplification in cervical lesions: an emerging marker for the risk to progression. Arch Gynecol Obstet 2015; 293:857-63. [PMID: 26315473 DOI: 10.1007/s00404-015-3870-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/18/2015] [Indexed: 01/15/2023]
Abstract
PURPOSE The persistence of high-risk oncogenic human papillomavirus (HR-HPV) infection and its integration into the host genome are key steps in the induction of malignant alterations. c-MYC chromosome region is a frequent localization for HPV insertion that has been observed in chromosome band 8q24 by fluorescence in situ hybridization (FISH). We report the HPV viral integration and amplification patterns of the c-MYC gene in cytological smears with FISH as a potential biomarker for the progression of squamous intraepithelial lesions (SIL). METHODS HPV detection and genotyping by polymerase chain reaction (PCR) and FISH analysis by "Vysis Cervical FISH Probe" kit (ABBOTT Molecular Inc.) were performed in 37 cervical samples including 8 NILM, 7 ASC-US, 7 LSIL, 3 ASC-H, 7 HSIL and 5 SCC. RESULTS The results show concordance between FISH and PCR techniques for HPV detection. The majority of the samples contained HR-HPV, the majority being -16 and -18 genotypes. HPV integration as determined by FISH was most frequent in high-risk lesions. The c-MYC gene amplification was found only in HPV-positive samples and was detected primarily in high-risk lesions and in cells with an integrated form of HPV. CONCLUSIONS HPV integration and c-MYC gene amplification detected by FISH could be an important biomarker for use in clinical practice to determine SIL with a risk of progression.
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Gimenes F, Medina FS, de Abreu ALP, Irie MMT, Esquiçati IB, Malagutti N, Vasconcellos VRB, Discacciati MG, Bonini MG, Maria-Engler SS, Consolaro MEL. Sensitive simultaneous detection of seven sexually transmitted agents in semen by multiplex-PCR and of HPV by single PCR. PLoS One 2014; 9:e98862. [PMID: 24921247 PMCID: PMC4055596 DOI: 10.1371/journal.pone.0098862] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 05/07/2014] [Indexed: 01/12/2023] Open
Abstract
Sexually transmitted diseases (STDs) may impair sperm parameters and functions thereby promoting male infertility. To date limited molecular studies were conducted to evaluate the frequency and type of such infections in semen Thus, we aimed at conceiving and validating a multiplex PCR (M-PCR) assay for the simultaneous detection of the following STD pathogens in semen: Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium, Trichomonas vaginalis, Herpes virus simplex (HSV) −1 and −2, and Treponema pallidum; We also investigated the potential usefulness of this M-PCR assay in screening programs for semen pathogens. In addition, we aimed: to detect human Papillomavirus (HPV) and genotypes by single PCR (sPCR) in the same semen samples; to determine the prevalence of the seven STDs, HPV and co-infections; to assess the possibility that these infections affect semen parameters and thus fertility. The overall validation parameters of M-PCR were extremely high including agreement (99.2%), sensitivity (100.00%), specificity (99.70%), positive (96.40%) and negative predictive values (100.00%) and accuracy (99.80%). The prevalence of STDs was very high (55.3%). Furthermore, associations were observed between STDs and changes in semen parameters, highlighting the importance of STD detection in semen. Thus, this M-PCR assay has great potential for application in semen screening programs for pathogens in infertility and STD clinics and in sperm banks.
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Affiliation(s)
- Fabrícia Gimenes
- Section of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, Paraná, Brazil
| | - Fabiana Soares Medina
- Section of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, Paraná, Brazil
| | - André Luelsdorf Pimenta de Abreu
- Section of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, Paraná, Brazil
| | - Mary Mayumi Taguti Irie
- Section of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, Paraná, Brazil
| | - Isis Baroni Esquiçati
- Section of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, Paraná, Brazil
| | - Natália Malagutti
- Section of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, Paraná, Brazil
| | | | - Michele Garcia Discacciati
- Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marcelo Gialluisi Bonini
- College of Medicine, Department of Pharmacology, University of Illinois at Chicago, Illinois, Chicago, United States of America
| | - Silvya Stuchi Maria-Engler
- Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marcia Edilaine Lopes Consolaro
- Section of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá, Paraná, Brazil
- * E-mail:
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12
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Chen L, Watanabe K, Haruyama T, Kobayashi N. Simple and rapid human papillomavirus genotyping method by restriction fragment length polymorphism analysis with two restriction enzymes. J Med Virol 2014; 85:1229-34. [PMID: 23918541 DOI: 10.1002/jmv.23582] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2013] [Indexed: 11/08/2022]
Abstract
Cervical cancer, the third most common cancer that affects women worldwide, is caused by the human papillomavirus (HPV) and is treatable when detected at an early stage. To date, more than 100 different HPV types have been described, and the development of simple, low-cost, and accurate methods to distinguish HPV genotypes is highly warranted. In this study, an HPV genotyping assay based on polymerase chain reaction (PCR) was evaluated. This method involved the use of MY09/11 primers followed by restriction fragment length polymorphism (RFLP) analysis with the restriction enzymes HpyCH4V and NlaIII. Cervical specimens preserved using CytoRich Blue fluid were collected from 1,134 female volunteers for HPV detection, and 1,111 valid samples were amplified using PCR. The PCR method was sensitive enough to detect 25 copies of HPV18, and three copies of HPV16. Out of 202 PCR-positive samples, HPV genotypes were determined in 189 samples (93.6%) by this RFLP method. Results were then evaluated further by capillary sequencing method. Concordant results between the two tests were as high as 96.0%. Thirteen samples, which tested negative with RFLP, were verified as non-specific amplifications with PCR. In conclusion, this PCR-RFLP method using restriction enzymes HpyCH4V and NlaIII is simple, non-labor intensive, and is applicable for the inexpensive determination of HPV genotypes in clinical samples.
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Affiliation(s)
- Linghan Chen
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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13
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Rocha-Brischiliari SC, Gimenes F, de Abreu ALP, Irie MMT, Souza RP, Santana RG, Gravena AAF, de B Carvalho MD, Consolaro MEL, Pelloso SM. Risk factors for cervical HPV infection and genotypes distribution in HIV-infected South Brazilian women. Infect Agent Cancer 2014; 9:6. [PMID: 24517499 PMCID: PMC3996140 DOI: 10.1186/1750-9378-9-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 02/03/2014] [Indexed: 11/10/2022] Open
Abstract
Background Human Papillomavirus (HPV) infection is particularly burdensome for women infected with human immunodeficiency virus (HIV), which increases their risk of developing cervical lesions and cancer (CC). We conducted a molecular study of the distribution of cervical HPV genotypes and the risk factors for this infection in HIV-infected Brazilian women. Findings Cervical and endocervical samples for Papanicolaou screening and HPV detection were collected from 178 HIV-infected women using highly active antiretroviral therapy (HAART) of Maringá city/Brazil. Risk factors were assessed using a standardized questionnaire, and the data regarding to HIV infection from medical records. HPV was detected by polymerase chain reaction (PCR), and genotyping using PCR-restriction fragment length polymorphism analysis. HIV infection was well controlled, but women with a current CD4+ T lymphocyte count between 200–350 cells/mm3 (37.6%) had a two-fold greater risk of HPV infection than those with > 350 cells/mm3 (26.4%). HPV was associated with parity ≥3, hormonal contraceptive use and current smoker. HPV infection occurred with high frequency (46.6%) but a low frequency of cervical abnormalities was detected (7.30%), mainly low-grade squamous intraephitelial cervical lesions (LSIL) (84.6%). A high frequency of multiple HPV infections was detected (23.0%), and the most frequent HPV genotype was HPV-72 (6.7%), followed by −16, -31 and -51 (6.14% each). Conclusions We showed that HAART use does not protect HIV-infected women from HPV, but appear to exert some protection against cervical lesions development. This study provides other important information about risk factors and cervical HPV in HIV-infected women, which can contribute to planning protocols.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Sandra M Pelloso
- Department of Nursing, State University of Maringá, Paraná, Brazil.
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Souho T, Bennani B. Oncogenic human papillomavirus genotyping by multiplex PCR and fragment analysis. J Virol Methods 2014; 196:45-9. [DOI: 10.1016/j.jviromet.2013.10.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 10/14/2013] [Accepted: 10/18/2013] [Indexed: 10/26/2022]
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Giannaki M, Kakourou T, Theodoridou M, Syriopoulou V, Kabouris M, Louizou E, Chrousos G. Human papillomavirus (HPV) genotyping of cutaneous warts in Greek children. Pediatr Dermatol 2013; 30:730-5. [PMID: 24283440 DOI: 10.1111/pde.12113] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The human papillomavirus (HPV) infects the squamous epithelium of the skin and produces common warts, plantar warts, and flat warts, which occur commonly on the hands, face, and feet. The objective of this study was to determine the presence of HPV in warts in children in order to associate the virus with the disease. Sixty-eight children with clinically diagnosed cutaneous warts were recruited. Skin biopsy samples were examined and DNA was extracted using a commercially available kit. To distinguish between the HPV types, we used a specific pair of primers to amplify the HPV DNA. Polymerase chain reaction amplification of the L1 region was followed by restriction fragment length polymorphism analysis and Luminex xMAP technology. HPV 57 was the predominant type in our study, although the detection of the high-risk HPV type 16 in 33% of our positive samples indicates the presence of mucosal high-risk HPV types in the skin of children. It seems that the newly introduced Luminex assay maximized the discrimination of genotypes even in the case of multiple HPV infections. Or findings also suggest the presence of high-risk HPV types in cutaneous warts.
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Affiliation(s)
- Maria Giannaki
- First Department of Pediatrics, Athens Medical School, Aghia Sophia Children's Hospital, Athens, Greece
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16
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Souza RP, Gimenes F, de Abreu AL, Rocha-Brischiliari SC, de Carvalho MD, Ferreira EC, Bonini MG, Pelloso SM, Consolaro ME. Differences in the mutation of the p53 gene in exons 6 and 7 in cervical samples from HIV- and HPV-infected women. Infect Agent Cancer 2013; 8:38. [PMID: 24098975 PMCID: PMC3851445 DOI: 10.1186/1750-9378-8-38] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 10/01/2013] [Indexed: 11/10/2022] Open
Abstract
Background Human Papillomavirus (HPV) infection is a serious problem for human immunodeficiency virus (HIV)-infected women, increases their risk of cervical lesions and cancer. In cervical carcinogenesis, mutations in the p53 gene occur most frequently within exons 5–8. To our knowledge, no previous studies have analyzed mutations in exons 5–8 of the p53 gene in HIV- and HPV-infected women. In our study, we verified these mutations in women with and without cervical abnormalities. Findings The study included 160 women, divided into three groups: (1) 83 HPV- and HIV-infected women (HIV group); (2) 37 HPV-infected/HIV-uninfected (control group); and (3) 40 normal cytology/DNA-HPV negative/HIV-uninfected women (negative control p53 reactions). HPV-DNA was detected using polymerase chain reaction (PCR) and genotyping by PCR-restriction fragment length polymorphism analysis. Using primers for exons 5–8, the mutation of the p53 gene was verified by PCR-single strand conformational polymorphism. The total mutation of the p53 gene in exons 5–8 was not significantly associated with the HIV and control groups. The mutations in exon 7 were the highest in the HIV group (43.8%) and in exon 6 in the control group (57.2%) (p = 0.0793) suggesting a tendency toward differential mutation in exon 7 in the HIV group. Conclusions Our study provides preliminary evidence that the mutation in exon 7 might be an important differentiating factor for cervical carcinogenesis in HIV-infected women. This aspect deserves an additional cross-sectional and longitudinal study using a larger sample size with a higher number of High-grade squamous intraephitelial lesion (HSIL) to observe the evolution of cervical lesions.
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Affiliation(s)
- Raquel P Souza
- Department of Clinical Analysis and Biomedicine, State University of Maringá, Av, Colombo 5790, Maringá 87020-900, Paraná, Brazil.
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The association of the immune response genes to human papillomavirus-related cervical disease in a Brazilian population. BIOMED RESEARCH INTERNATIONAL 2013; 2013:146079. [PMID: 23936772 PMCID: PMC3722781 DOI: 10.1155/2013/146079] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 06/05/2013] [Accepted: 06/15/2013] [Indexed: 12/13/2022]
Abstract
The genetic variability of the host contributes to the risk of human papillomavirus (HPV)-related cervical disease. Immune response genes to HPV must be investigated to define patients with the highest risk of developing malignant disease. The aim of this study was to investigate the association of polymorphic immune response genes, namely KIR, HLA class I and II, and single-nucleotide polymorphisms (SNPs) of cytokines with HPV-related cervical disease. We selected 79 non-related, admixed Brazilian women from the state of Paraná, southern region of Brazil, who were infected with high carcinogenic risk HPV and present cervical intraepithelial neoplasia grade 3 (CIN3), and 150 HPV-negative women from the same region matched for ethnicity. KIR genes were genotyped using an in-house PCR-SSP. HLA alleles were typed using a reverse sequence-specific oligonucleotide technique. SNPs of TNF −308G>A, IL6 −174G>C, IFNG +874T>A, TGFB1 +869T>C +915G>C, and IL10 −592C>A −819C>T −1082G>A were evaluated using PCR-SSP. The KIR genes were not associated with HPV, although some pairs of i(inhibitory)KIR-ligands occurred more frequently in patients, supporting a role for NK in detrimental chronic inflammatory and carcinogenesis. Some HLA haplotypes were associated with HPV. The associations of INFG and IL10 SNPs potentially reflect impaired or invalid responses in advanced lesions.
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Abreu ALP, Souza RP, Gimenes F, Consolaro MEL. A review of methods for detect human Papillomavirus infection. Virol J 2012; 9:262. [PMID: 23131123 PMCID: PMC3507852 DOI: 10.1186/1743-422x-9-262] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Accepted: 11/02/2012] [Indexed: 02/07/2023] Open
Abstract
Human Papillomavirus (HPV) is the most common sexually transmitted virus. Worldwide, the most common high-risk (HR)-HPV are -16/18, and approximately 70% of cervical cancers (CC) are due to infection by these genotypes. Persistent infection by HR-HPV is a necessary but not sufficient cause of this cancer, which develops over a long period through precursor lesions, which can be detected by cytological screening. Although this screening has decreased the incidence of CC, HPV-related cervical disease, including premalignant and malignant lesions, continues to be a major burden on health-care systems. Although not completely elucidated, the HPV-driven molecular mechanisms underlying the development of cervical lesions have provided a number of potential biomarkers for both diagnostic and prognostic use in the clinical management of women with HPV-related cervical disease, and these biomarkers can also be used to increase the positive predictive value of current screening methods. In addition, they can provide insights into the biology of HPV-induced cancer and thus lead to the development of nonsurgical therapies. Considering the importance of detecting HPV and related biomarkers, a variety of methods are being developed for these purposes. This review summarizes current knowledge of detection methods for HPV, and related biomarkers that can be used to discriminate lesions with a high risk of progression to CC.
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Affiliation(s)
- André L P Abreu
- Division of Clinical Cytology, Department of Clinical Analysis and Biomedicine, State University of Maringá, Av, Colombo 5790, 87020-900, Paraná, Brazil
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da Silva MC, Martins HPR, de Souza JL, Tognim MCB, Svidzinski TIE, Teixeira JJV, Consolaro MEL. Prevalence of HPV infection and genotypes in women with normal cervical cytology in the state of Paraná, Brazil. Arch Gynecol Obstet 2012; 286:1015-22. [PMID: 22699514 DOI: 10.1007/s00404-012-2399-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Accepted: 05/29/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVE We investigated the prevalence of the human Papillomavirus (HPV) and its genotypes in women with normal cervical cytology in the state of Paraná, Brazil, and also epidemiological characteristics. METHODS The enrolled patients were seen at six primary health-care units in Paiçandú City, Paraná. Through polymerase chain reaction (PCR) and PCR-RFLP (restriction fragment length polymorphism) techniques, 40 HPV genotypes were found, including 15 high risk, 3 undetermined risk and 22 low risk. Socio-demographic characteristics and sexual behavior were also recorded by interviews based on a structured questionnaire completed at the time of enrollment. RESULTS Among 418 patients examined, HPV was detected in 6.7 %, mainly in women aged <25 years. The overall prevalence of high-risk, low-risk and undetermined-risk HPV types was 42.9, 45.7, and 11.7 %, respectively. HPV-16 was the most common type detected (14.3 %), followed by types 66 (11.4 %) and 31 and 70 (8.6 % each). Detection of HPV DNA was positively associated with the number of sexual partners within the previous 12 months (p < 0.031; OR = 5.4; CI = 0.98-29.8). CONCLUSION When considering the lack of studies in Paraná on women with normal cytology, the results of this study will improve estimates of HPV DNA populations, and provide baseline values against which the impact of vaccination can be assessed in the future.
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Affiliation(s)
- Mariana Clivati da Silva
- Clinical Cytology Laboratory, Department of Clinical Analysis and Biomedicine, State University of Maringá, Av. Colombo, 5790, Maringá, Paraná, CEP 87020-900, Brazil
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Nogara PRB, Gimenes F, Consolaro MEL. Distribution of HPV genotypes and HPV-16 and HPV-18 E2 gene disruption in South Brazilian women with cervical abnormalities. Int J Gynaecol Obstet 2012; 117:289-90. [PMID: 22425011 DOI: 10.1016/j.ijgo.2012.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2011] [Revised: 01/10/2012] [Accepted: 02/16/2012] [Indexed: 10/28/2022]
Affiliation(s)
- Paula R B Nogara
- Department of Clinical Analysis and Biomedicine, State University of Maringá, Paraná, Brazil
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A novel algorithm for restricting the complexity of virus typing via PCR-RFLP gel electrophoresis. Biomed Eng Lett 2011. [DOI: 10.1007/s13534-011-0038-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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Maramis CF, Delopoulos AN, Lambropoulos AF. A computerized methodology for improved virus typing by PCR-RFLP gel electrophoresis. IEEE Trans Biomed Eng 2011; 58. [PMID: 21571605 DOI: 10.1109/tbme.2011.2153202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The analysis of digitized images from polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP)gel electrophoresis examinations is a popular method for virus typing, i.e., for identifying the virus type(s) that have infected an investigated biological sample. However, being mostly manual, the conventional virus typing protocol remains laborious, time consuming, and error prone. In order to overcome these shortcomings,we propose a computerized methodology for improving virus typing via PCR-RFLP gel electrophoresis. A novel realistic observation model of the viral DNA motion on the gel matrix is employed to assist in exploiting additional virus-related information in comparison to the conventional approaches. The extracted rich information is fed to a novel typing algorithm, resulting in faster and more accurate decisions. The proposed methodology is evaluated for the case of the human papillomavirus typing on a dataset of 80 real and 1500 simulated samples, producing very satisfactory results.Ind
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Fontaine V, Mascaux C, Weyn C, Bernis A, Celio N, Lefèvre P, Kaufman L, Garbar C. Evaluation of combined general primer-mediated PCR sequencing and type-specific PCR strategies for determination of human papillomavirus genotypes in cervical cell specimens. J Clin Microbiol 2007; 45:928-34. [PMID: 17229855 PMCID: PMC1829119 DOI: 10.1128/jcm.02098-06] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A strategy combining human papillomavirus general primer (mainly the PGMY primers)-directed PCR sequencing and type-specific PCR is presented. DNA samples were first tested in general primer-mediated PCR. The amplified fragments of positive samples after ethidium bromide-stained DNA gel analysis were further sequenced, and corresponding DNA samples were further analyzed by PCR using type-specific primers for human papillomavirus (HPV) types 16, 18, 31, and 52. The comparison of the results of 157 samples analyzed by this strategy in parallel with the Hybrid Capture 2 tests and with the HPV INNO-LiPA (Innogenetics line probe assay) shows that this method is suitable for HPV detection and genotyping in cervical cell samples. Although the PCR sequencing method is as sensitive as the HPV INNO-LiPA for HPV detection, our method allows the identification of a broader range of HPV types. In contrast, the HPV INNO-LiPA was less time-consuming and better identified coinfections.
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Affiliation(s)
- Véronique Fontaine
- Laboratory of Molecular Virology, ISP/Institut Pasteur, rue Engeland 642, 1180 Brussels, Belgium.
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