Human Papillomavirus (HPV) Prevalence, Temporal Dynamics and Association with Abnormal Cervical Cytology Findings in Women from Croatia: Is there a Compounding Effect of Low-Risk/High-Risk HPV Co-Infection?

2020 ◽  
Vol 66 (12/2020) ◽  
Author(s):  
Tomislav Meštrović ◽  
Sunčanica Ljubin-Sternak ◽  
Ivana Božičević ◽  
Domagoj Drenjančević ◽  
Aleksandra Barać ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
High Risk ◽  
Temporal Dynamics ◽  
Low Risk ◽  
Cervical Cytology ◽  
Hpv Prevalence ◽  
Abnormal Cervical Cytology ◽  
High Risk Hpv

scholarly journals Differences in Factors Associated With High- and Low-Risk Oral Human Papillomavirus Genotypes in Men

2020 ◽  
Author(s):  
Deepti Bettampadi ◽  
Brittney Dickey ◽  
Martha Abrahamsen ◽  
Bradley Sirak ◽  
Maria Luiza Baggio ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
High Risk ◽  
Sexual Behaviors ◽  
Hpv Infection ◽  
Low Risk ◽  
Factors Associated ◽  
Hpv Prevalence ◽  
Oral Hpv ◽  
Multivariable Models ◽  
High Risk Hpv

Abstract Background Human papillomavirus (HPV) causes oral warts and oropharyngeal cancer (OPC). Human papillomavirus-attributable OPC incidence among men is significantly increasing worldwide, yet few studies have reported oral HPV across multiple countries or examined factors associated with low- and high-risk HPV separately. Methods Oral gargles from 3095 men in the multinational HPV Infection in Men (HIM) Study were HPV genotyped. Multivariable models assessed factors independently associated with high-risk and low-risk HPV prevalence. Results The prevalence of high-risk and low-risk HPV was 6.0% and 2.8%, respectively. Greater number of sexual partners was only associated with high-risk HPV (1.88; 95% confidence interval [CI], 1.22–2.90) prevalence. In multivariable models, residing in Mexico (1.66; 95% CI, 1.15–2.40) and smoking (1.66; 95% CI, 1.13–2.44) were significantly associated with high-risk HPV, and history of consistent gum bleeding (2.16; 95% CI, 1.35–3.45) was significantly associated with low-risk HPV. Gender of the sexual partner did not alter the results for either high- or low-risk HPV endpoints. Conclusions Different factors were independently associated with high- and low-risk oral HPV. Oral sexual behaviors were associated with high-risk HPV, and oral health was associated with low-risk HPV. High-risk HPV prevalence differed by country of residence, highlighting the need for additional studies in multiple countries.

Characteristics of high-risk human papillomavirus infection in women with abnormal cervical cytology: a population-based study in Shanxi Province, China

2019 ◽  
Author(s):  
Li Song ◽  
Yuanjing Lyu ◽  
Ling Ding ◽  
Xiaoxue Li ◽  
Wen Gao ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
High Risk ◽  
Hpv Infection ◽  
Cervical Cytology ◽  
Shanxi Province ◽  
Low Grade ◽  
Squamous Intraepithelial Lesion ◽  
Abnormal Cervical Cytology ◽  
Intraepithelial Lesion

Abstract Background: High-risk human papillomavirus (HR-HPV) infection is widely known as the major cause of cervical intraepithelial neoplasia (CIN) and cervical cancer and it’s characteristics vary greatly in different population. Women with abnormal cervical cytology could increase the risk of cervical cancer, however, HR-HPV infection characteristics in women with abnormal cervical cytology remains unclear. Methods: This study was based on baseline survey of the CIN Cohort established in Shanxi Province, China. A total number of 2300 women with cervical abnormalities were enrolled in this study. All participants gave informed consent and agreed to HPV and thinprepcytologic test (TCT). Each individual completed a questionnaire about characteristics related to HPV infection. Results: The overall prevalence of HR-HPV in 2300 women was 32.0%, and the proportion of single and multiple HR-HPV infections were 70.2% and 29.8% in HR-HPV infection women, respectively. The top five HR-HPV genotypes were ranked as HPV16, HPV58, HPV52, HPV53 and HPV51. The prevalence of HR-HPV in atypical squamous cells of undetermined significance (ASC-US), low-grade squamous intraepithelial lesion (LSIL) and high-grade squamous intraepithelial lesion and above(HSIL+) were 30.8%, 36.5% and 54.9%, respectively, showing an increasing trend with the severity of cervical cytology ( χ 2 trend =13.952; p <0.001). The women aged 35~45 years, with lower education level, less frequency of bathing, multiple gravidity, multiple parity, history of gynecological diseases and premenopausal women were prone to HR-HPV infection. Conclusions: We defined the characteristics related to HR-HPV infection in abnormal cervical cytology women, and provided an insight for the development and deeply research of HPV vaccine.

scholarly journals Detection of human papillomavirus oncoprotein E7 in liquid-based cytology

2012 ◽  
Vol 93 (2) ◽  
pp. 356-363 ◽  
Author(s):  
Maria Lidqvist ◽  
Olle Nilsson ◽  
Jan Holmgren ◽  
Sebastian Hölters ◽  
Eva Röijer ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
High Risk ◽  
Low Risk ◽  
Transformed Cells ◽  
Specific Staining ◽  
Hpv E7 ◽  
Detection And Identification ◽  
Liquid Based Cytology ◽  
E7 Proteins ◽  
High Risk Hpv

The selection and characterization of a set of mouse mAbs against high-risk human papillomavirus (HPV) E7 oncoprotein and the development of protocols for immunocytochemistry (ICC) are described here. A large number of antibodies raised towards HPV16 and 18 E7 were tested for high-risk specificity by ELISA using a panel of HPV E7 proteins. Antibodies detecting low-risk E7 were discarded, resulting in 38 high-risk HPV E7-specific antibodies. The corresponding epitopes were mapped using overlapping HPV E7 fragments displayed on phage particles. Functionality in ICC against formalin-fixed cervical cancer cell lines was demonstrated for ten mAbs; their high-risk specificity was confirmed by Western blot analysis and ICC on transiently transformed cells expressing high- or low-risk HPV E7. These mAbs were specific for one or several of the high-risk strains HPV16, 18, 31, 35 and 45. Specific E7 staining of liquid-based cytology (LBC) samples was demonstrated for seven mAbs and optimized protocols were established. The E716-41 and E718-79 mAbs demonstrated particularly strong and specific staining of cells stored in LBC fluid for at least 6 months. It is proposed that the high-risk HPV E7 staining protocols established in this study may have the potential to be included in a complementary test for the detection and identification of malignantly transformed cells, in for example atypical squamous cells of undetermined significance samples.

scholarly journals Additional Human Papillomavirus Types Detected by the Hybrid Capture Tube Test among Samples from Women with Cytological and Colposcopical Atypia

2000 ◽  
Vol 38 (1) ◽  
pp. 408-411
Author(s):  
József Kónya ◽  
György Veress ◽  
Attila Juhász ◽  
Krisztina Szarka ◽  
Tamás Sápy ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
High Risk ◽  
Fragment Length Polymorphism ◽  
Low Risk ◽  
Double Positive ◽  
Detection Range ◽  
Hybrid Capture ◽  
Pcr Rflp ◽  
Hpv Types ◽  
High Risk Hpv

ABSTRACT The type specificity of the human papillomavirus (HPV) Hybrid Capture Tube (HCT) test was evaluated by using typing with PCR (MY09-MY11)-restriction fragment length polymorphism (RFLP) and sequencing. All samples HCT test positive for only low-risk HPV ( n = 15) or only high-risk HPV ( n = 102) were confirmed, whereas 9 of 12 HCT test double-positive samples contained only high-risk HPV types as determined by PCR-RFLP. Several high-risk HPV types (HPV-53, -58, -62, -66, -CP8304, and -MM4) not included in the HCT test were indeed detected, indicating a broader detection range with retained distinction between low-risk and high-risk HPV types.

scholarly journals Cellular Changes Induced by Low-Risk Human Papillomavirus Type 11 in Keratinocytes That Stably Maintain Viral Episomes

2001 ◽  
Vol 75 (16) ◽  
pp. 7564-7571 ◽  
Author(s):  
Jennifer T. Thomas ◽  
Stephen T. Oh ◽  
Scott S. Terhune ◽  
Laimonis A. Laimins
Keyword(s):  
Human Papillomavirus ◽  
Life Cycle ◽  
High Risk ◽  
Life Cycles ◽  
Low Risk ◽  
Global Changes ◽  
Culture Methods ◽  
Transfected Cells ◽  
Hpv Types ◽  
High Risk Hpv

ABSTRACT Infections by low-risk papillomavirus types, such as human papillomavirus (HPV) type 6 (HPV-6) and HPV-11, induce benign genital warts that rarely progress to malignancy. In contrast, lesions induced by high-risk HPV types have the potential to progress to cancer. Considerable information is available concerning the pathogenesis of high-risk HPV types, but little is known about the life cycle of low-risk HPV types. Although functionally distinct, both high- and low-risk virus types infect keratinocytes and induce virion production upon differentiation. This information suggests that they may share common mechanisms for regulating their productive life cycles. Using tissue culture methods developed to study high-risk HPV types, we examined the ability of HPV-11 to be stably maintained as episomes following transfection of normal human keratinocytes with cloned viral DNA. HPV-11 genomes were found to be maintained in keratinocytes for extended passages in cultures in 14 independent experiments involving transfection of cloned HPV-11 DNA. Interestingly, the HPV-11-positive cells exhibited an extended life span that averaged approximately twofold longer than that of control neomycin-transfected cells. In organotypic cultures, HPV-11-positive cells exhibited altered differentiation patterns, but the extent of disruption was less severe than that seen with high-risk HPV types. In addition, the amplification of HPV-11 DNA, as well as the induction of several viral messages, was observed following differentiation of transfected cells in semisolid media. To determine whether global changes in cellular gene expression induced by HPV-11 were similar to those observed with high-risk HPV-31 (Y. E. Chang and L. A. Laimins, J. Virol. 74:4174–4182, 2000), microarray analysis of 7,075 expressed sequences was performed. A spectrum of cellular genes different from that previously reported for HPV-31 was found to be activated or repressed by HPV-11. The expression of only a small set of genes was similarly altered by both high- and low-risk HPV types. This result suggests that different classes of HPVs have distinct effects on global cellular transcription patterns during infection. The methods described allow for a genetic analysis of HPV-11 in the context of its differentiation-dependent life cycle.

scholarly journals Detection of antibodies against a human papillomavirus (HPV) type 16 peptide that differentiate high-risk from low-risk HPV-associated low-grade squamous intraepithelial lesions

2004 ◽  
Vol 85 (9) ◽  
pp. 2643-2650 ◽  
Author(s):  
Leticia Rocha-Zavaleta ◽  
Juana P. Ambrosio ◽  
Maria de Lourdes Mora-Garcia ◽  
Fernando Cruz-Talonia ◽  
Jorge Hernandez-Montes ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
High Risk ◽  
Cancer Patients ◽  
Low Risk ◽  
Low Grade ◽  
Squamous Intraepithelial Lesions ◽  
Hpv Dna ◽  
Iga Antibodies ◽  
High Risk Hpv ◽  
Intraepithelial Lesions

A nonapeptide (16L1) was derived from the human papillomavirus type 16 (HPV-16) major capsid protein and tested for detection of potential cross-reactive serum IgG and cervical IgA antibodies in low- and high-risk HPV-associated low-grade squamous intraepithelial lesions (LSIL) and cervical cancer patients by ELISA. The IgG response was similar in women with low-risk HPV-associated LSIL and controls (P=0·1). In contrast, more than 90 % of patients with high-risk HPV-associated LSIL were seropositive. Although tumours from cancer patients were all positive for the presence of high-risk HPV DNA, the level of seropositivity decreased significantly in this group (P<0·0001). Cervical IgA antibodies were also detected in a significantly high proportion of women with high-risk HPV-associated LSIL compared with controls. However, the proportion of IgA-positive patients was lower than the proportion of IgG seropositives. In conclusion, the 16L1 peptide appears to be a high-risk type-common epitope that induces cross-reactive antibodies in high-risk, but not low-risk, HPV-associated LSIL patients, allowing differentiation of high- and low-risk infected women at this stage of infection.

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