Publications by authors named "Maria G Dona"

Anal Squamous Cell Carcinoma (SCCA) is a rare Human Papillomavirus type 16 (HPV16)-associated carcinoma whose pathogenesis is still poorly understood. Recent studies based on biopsy and Next Generation Sequencing (NGS) approaches have linked the viral episomal status to aggressive SCCA phenotypes, suggesting a potential role of the 16E5 oncoprotein in tumor development. Our previous findings indicated that 16E5 induces Fibroblast Growth Factor Receptor 2 (FGFR2) isoform switching, aberrant mesenchymal FGFR2c expression, Epithelial Mesenchymal Transition (EMT), and cell invasion in various in vitro human keratinocyte models, as well as in the in vivo context of cervical Low-grade Squamous Intraepithelial Lesions (LSILs).

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Background: Anal cytology represents a tool for anal cancer screening in high-risk populations. In addition to accuracy, the reproducibility of the interpretation is of key importance. The authors evaluated the agreement of anal cytologic interpretation between two cytopathologists.

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Article Synopsis
  • Lichen sclerosus (LS) is an inflammatory condition primarily affecting the genital area, and its connection to human papillomaviruses (HPVs) remains unclear, with mixed data on HPVs' role in LS patients.
  • A study analyzed HPV prevalence in 132 LS samples, finding that beta HPVs were most common, detected in 26.5% of cases, whereas alpha HPVs were present in 9.1%, with few cases of gamma HPVs.
  • The research indicated no significant differences in HPV prevalence based on sex and disease stage, highlighting the need for more studies to understand the clinical implications of beta HPVs in LS.
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Introduction: Anal cytology is used in the prevention of anal cancer, which disproportionally affects men who have sex with men (MSM). Data on the incidence of cytologic abnormalities in these individuals are scant.

Methods: MSM with baseline negative anal cytology and at least one further adequate cytology were included.

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  • Actinic keratosis (AK) is linked to UV radiation and possibly certain beta genus human papillomaviruses (HPVs), while the role of polyomaviruses (PyVs) in skin cancer remains uncertain.
  • A study analyzed 13 PyVs in skin samples from 342 AK patients, finding high positivity rates in fresh-frozen samples from both healthy skin and AK lesions, especially for MCPyV, HPyV6, and JCPyV.
  • While PyVs were commonly found in both healthy skin and AK scrapings, they were infrequently detected exclusively in AK samples, suggesting more research is needed to clarify their involvement in AK development.
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Data on COVID-19 boosting vaccination in people living with HIV (PLWH) are scant. We investigated the immunogenicity and safety of the BNT162b2 homologous boosting vaccination. Anti-SARS-CoV-2 spike antibodies (LIAISON® SARS-CoV-2 S1/S2 IgG test, DiaSorin®), CD4+, CD8+ and viraemia were monitored at T0 (pre-vaccination), T1 (4 weeks after the second dose), T2 (pre-booster) and T3 (4 weeks after the booster dose).

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Background: Understanding the natural history of anal high-risk human papillomavirus (hrHPV) infection is key for designing anal cancer prevention programs but has not been systematically characterized.

Methods: We reanalyzed data from 34 studies including 16 164 individuals in 6 risk groups defined by human immunodeficiency virus (HIV) status, sex, and male sexuality: men who have sex with men (MSM) and people with HIV (MSMWH), HIV-negative MSM, women with HIV (WWH), HIV-negative women, men who have sex with women (MSW) with HIV (MSWWH), and HIV-negative MSW. We used Markov models to estimate incidence and clearance of 13 hrHPV types and their determinants.

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HIV-infected men who have sex with men (MSM) display the highest prevalence of anal infection by high-risk Human Papillomaviruses (hrHPVs) and incidence of anal carcinoma. Anal specimens were genotyped by the Linear Array. Incidence and clearance of anal infection by hrHPVs, hrHPVs other than HPV16, low-risk HPVs, and four individual types (6,11,16,18) were estimated using a two-state Markov model.

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Oral infection by Human Papillomavirus (HPV) has recently gained great attention because of its involvement in the development of a subset of head and neck squamous cell carcinoma. The role of specific Alpha-HPVs in this regard has been well established, whereas the contribution of other genera is under investigation. Despite their traditional classification as "cutaneous" types, Beta and Gamma HPVs are frequently detected in oral samples.

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Men who have sex with men (MSM) harbor the highest prevalence of anal and oral Human Papillomavirus (HPV) infection, particularly if HIV-infected. We investigated anal and oral HPV infections in HIV-infected and HIV-uninfected MSM, to assess concurrent (HPV detected at both sites, irrespective of the genotypes), and concordant infections (same genotype[s] detected at both sites). Matched anal and oral samples from 161 MSM (85 HIV-infected, and 76 HIV-uninfected) were tested with the Linear Array.

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Article Synopsis
  • Recombinant antibodies targeting specific antigens have potential for treating infections and cancers, particularly those linked to human papillomaviruses (HPVs), which contribute to about 5% of human cancers, notably HPV16.
  • The text highlights the roles of HPV16's E6, E7, and E5 oncoproteins in disrupting key cancer-related processes, emphasizing their significance in HPV-related cancers.
  • It reviews current developments of antibody therapies aimed at HPV oncoproteins, discusses their mechanisms, and addresses the challenges of effectively delivering these therapies to tumor cells for clinical use.
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Men who have sex with men (MSM) harbor the highest risk for anal carcinoma, mainly caused by Human Papillomavirus (HPV). The use of HPV-related biomarkers in the screening for this neoplasia is still debated. We assessed the association between high-risk (hr)HPV DNA, HPV16/18 DNA, hrHPV E6/E7 mRNA, and p16/Ki-67 with cytological abnormalities (any grade) and high-grade intraepithelial lesions (HSIL) in HIV-uninfected and HIV-infected MSM.

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Article Synopsis
  • The study investigates the prevalence of anal HPV and high-grade squamous intraepithelial lesions (HSIL) in men, focusing on factors like HIV status and sexual orientation.
  • Researchers conducted a systematic review and pooled individual data from 64 studies involving nearly 29,900 men to analyze type-specific HPV infection and HSIL occurrences.
  • Findings showed varying HPV prevalence rates: among HIV-negative MSW, HPV16 was at 1.8%, while HIV-positive MSM had rates as high as 28.5% for HPV16 and 74.3% for high-risk types, suggesting a significant impact of HIV on HPV infection rates.
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Objectives/hypothesis: The aim of this study was to assess the value of cell-free human papillomavirus-DNA (cfHPV-DNA) as a diagnostic test for the post-treatment surveillance of patients with HPV-positive head and neck squamous cell carcinoma (HNSCC) through a systematic review and meta-analysis.

Study Design: Systematic review and meta-analysis.

Methods: A literature search was conducted in three databases (MEDLINE, Embase, and Scopus) in January 2021.

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Mucosal Human Papillomaviruses (HPVs) play a role in the development of a subset of head and neck cancers. Cutaneous HPVs are abundantly present in the oral cavity. The determinants of these infections have not been extensively investigated.

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Coronavirus disease 2019 (COVID-19) pandemic has reduced the access of HIV patients to reference centers. However, retention-in-care is critical to maintain adherence to therapy and viral suppression. During lockdown in Italy, our center implemented several measures to ensure HIV-care continuum.

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Men who have sex with men (MSM) harbor a significant burden of human papillomavirus (HPV)-related diseases that could be prevented by vaccination. Prevalence of HPVs targeted by the quadrivalent (4vHPV) and nonavalent vaccines (9vHPV) was assessed in anal (n = 443) and oral (n = 193) specimens of immunocompetent, sexually active MSM, using the Linear Array. Of the anal samples, 34.

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Article Synopsis
  • The study explores HPV diversity in the anal mucosa of men with different sexual behaviors and HIV statuses using next-generation sequencing.
  • The analysis included HIV-positive men, HIV-negative men who have sex with men (MSM), and HIV-negative men who have sex with women (MSW), with a focus on detecting various types of HPV.
  • Findings revealed that alpha HPV types were more common in MSM, beta types were more prevalent in MSW, and gamma types were similarly distributed among groups, indicating that HPV types vary based on sexual behavior and highlighting the presence of HPV in non-skin sites.
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