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1.
Taiwan J Obstet Gynecol ; 63(3): 320-328, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38802194

RESUMO

A significant decline in both incidence and prevalence of cervical cancers after widespread-introducing cervical screening strategy by Papanicolau test (Pap test) has been found in the world, but cervical cancer is still one of the most common female cancers, reporting the fourth prevalence and also one of the leading causes to result in main women-associated morbidity and mortality, particularly for those women living in low- and middle-income countries. Cervical cancer is one of the most important health concerns directly destroying the global health-care system, partly because of not only increasing the disability either secondary to diseases themselves of victims or mediated by treatment-related adverse events to the survivors but also acting as a leading cause of death of diseased patients worldwide, alarming the urgent need to do something to minimize the catastrophic diseases-related heavy socioeconomic burden. It is fortunate that cervical cancer is a preventable disease, based on its strong association with human papillomavirus (HPV) infection (more than 95%), particularly for those high-risk HPV (HR-HPV) and its high possibility by detecting HPV infection before the development of cervical cancer as well as an effective prevention by HPV vaccination. That is why WHO (World Health Organization) considers cervical cancer as a public problem and attempts to accelerate the elimination of cervical cancer program by three-pillar approach (90:70:90% targets), including (1) 90% of girls are fully vaccinated with HPV vaccine by 15 years of age; (2) 70% of women are screened with a high-performance test by 35 and 45 years of age and precancerous lesions are treated early; and (3) 90% of women identified with cervical diseases receive appropriate and adequate treatment. Herein, this review focuses on the HPV vaccination as Part I, including global recommendations and Taiwan government's policy for HPV vaccination.


Assuntos
Infecções por Papillomavirus , Vacinas contra Papillomavirus , Neoplasias do Colo do Útero , Humanos , Feminino , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias do Colo do Útero/virologia , Vacinas contra Papillomavirus/administração & dosagem , Infecções por Papillomavirus/prevenção & controle , Infecções por Papillomavirus/complicações , Taiwan/epidemiologia , Adulto , Vacinação , Pessoa de Meia-Idade , Detecção Precoce de Câncer , Papillomavirus Humano
2.
J Robot Surg ; 18(1): 226, 2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38806847

RESUMO

We present a cohort review of TORS resection for HPV-associated oropharyngeal squamous cell carcinoma (OPSCC) and its associated oncological outcomes spanning a 10-year period. A retrospective case series review was performed of patients undergoing primary surgical treatment for HPV-associated OPSCC through the St. Vincent's Head and Neck Cancer service from 2011 to 2022. The primary outcomes were to investigate complete resection of the primary tumour, rates of recurrence, and survival analysis. Secondary outcomes included complications, rates of adjuvant therapy, sites of recurrence and rates of percutaneous endoscopic gastrostomy (PEG). 184 patients underwent TORS-based therapy with neck dissection, and guideline-directed adjuvant therapy for HPV-associated OPSCC. Our median follow-up was 46 months. The positive margin rate on final histopathology analysis was 10.9%. Adjuvant therapy was indicated in 85 patients (46%). The local recurrence rate was 10.9% with the majority (80%) of patients recurring in the first 3 years since treatment. The disease-specific survival at 3 years was 98.6% and at 5 years was 94.4%. The 3-year and 5-year OS for the cohort was 96.7% and 92.5%, respectively. The presence of extranodal extension and positive margins were associated with increased risk of recurrence, whereas adjuvant therapy was found to be a protective factor for both overall recurrence and survival. Major complications occurred in 12 patients (6.5%), resulting in one death. This study has demonstrated that primary surgical therapy for HPV-associated OPSCC is a safe and effective treatment modality with low local recurrence and complication rates, and overall survival benefits.


Assuntos
Neoplasias Orofaríngeas , Procedimentos Cirúrgicos Robóticos , Humanos , Procedimentos Cirúrgicos Robóticos/métodos , Estudos Retrospectivos , Neoplasias Orofaríngeas/cirurgia , Neoplasias Orofaríngeas/virologia , Neoplasias Orofaríngeas/patologia , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Resultado do Tratamento , Recidiva Local de Neoplasia , Austrália/epidemiologia , Adulto , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/cirurgia , Carcinoma de Células Escamosas/cirurgia , Carcinoma de Células Escamosas/virologia , Carcinoma de Células Escamosas/patologia , Margens de Excisão , Carcinoma de Células Escamosas de Cabeça e Pescoço/cirurgia , Carcinoma de Células Escamosas de Cabeça e Pescoço/virologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Esvaziamento Cervical/métodos , Idoso de 80 Anos ou mais
3.
PLoS One ; 19(5): e0300729, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38691575

RESUMO

Penile squamous cell carcinoma (PSCC) occurs more frequently in some developing countries compared to developed countries. Infection with HIV and/or high-risk human papillomavirus (hrHPV) are risk factors for penile cancer development. The tumor microenvironment of PSCC may predict prognosis and may inform on the best targets for immunotherapy. We evaluated the immune microenvironment of penile tumors histologically, and determined whether and/or how HIV and/or hrHPV infections affect this tumor microenvironment. We conducted a prospective analytical cross-sectional study in which penile cancer tumors from 35 patients presenting at the University Teaching Hospital in Lusaka, Zambia were histologically staged and assessed for presence of tumor infiltrating immune cells and expression of immune checkpoints. Immunohistochemistry was used to evaluate immune checkpoints and infiltrating immune cells, while multiplex real-time polymerase chain reaction was used for hrHPV genotyping. The median age of all participants was 55 years. About 24% had advanced histological stage, 83% were HIV+, and 63% had hrHPV detected in their tumors using multiplex real-time polymerase chain reaction. PDL1 expression was significantly higher in HIV- participants than HIV+ participants (p = 0.02). Tumors with multiple hrHPV infections had a significantly higher number of cells expressing TIM3 than those with one hrHPV (p = 0.04). High grade tumors had a significantly higher infiltrate of FoxP3+ cells (p = 0.02), CD68+ cells (p = 0.01), CD163+ cells (p = 0.01), LAG3+ cells (p = 0.01), PD1+ cells (p = 0.01) and TIM3+ cells (p = 0.03) when compared with low grade tumours. There was significant moderate to strong positive correlation of cells expressing PD1 and LAG3 (⍴ = 0.69; p = 0.0001), PD1 and TIM3 (⍴ = 0.49; p = 0.017) and TIM3 and LAG3 PDL1 (⍴ = 0.61; p = 0.001). In conclusion, the tumor microenvironment of penile squamous cell carcinoma seems to be affected by both HIV and HPV infections. TIM3 appears to be a potential therapeutic target in PSCC patients with hrHPV infections.


Assuntos
Carcinoma de Células Escamosas , Infecções por HIV , Infecções por Papillomavirus , Neoplasias Penianas , Microambiente Tumoral , Humanos , Masculino , Microambiente Tumoral/imunologia , Neoplasias Penianas/virologia , Neoplasias Penianas/patologia , Neoplasias Penianas/imunologia , Carcinoma de Células Escamosas/virologia , Carcinoma de Células Escamosas/imunologia , Carcinoma de Células Escamosas/patologia , Pessoa de Meia-Idade , Infecções por HIV/imunologia , Infecções por HIV/complicações , Infecções por HIV/virologia , Infecções por HIV/patologia , Infecções por Papillomavirus/imunologia , Infecções por Papillomavirus/virologia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/patologia , Estudos Transversais , Antígeno B7-H1/metabolismo , Antígeno B7-H1/genética , Idoso , Papillomaviridae , Adulto , Estudos Prospectivos , Linfócitos do Interstício Tumoral/imunologia , Papillomavirus Humano
5.
Head Neck Pathol ; 18(1): 36, 2024 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-38709462

RESUMO

BACKGROUND: To determine the prevalence of HR-HPV in a series of lip SCC from South African patients, using currently accepted HPV-testing methodologies and to define the clinical and histomorphologic features of HPV-associated lip SCC. METHODS: Fifty SCC of lip and 50 control cases were tested for HR-HPV using p16 and HR-HPV DNA PCR. p16-equivocal/positive and HPV DNA PCR-positive SCC were further evaluated for the expression of HPV-16 and HPV-18 mRNA transcripts using reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR) to confirm transcriptionally active HPV. RESULTS: p16 was positive in 22% (n = 11) and equivocal in 4% (n = 2) of the SCC. One p16-positive case showed positivity for both HPV-16 DNA and HPV-16 E6/E7 mRNA transcripts (HPV prevalence rate of 2%). The HPV-positive case was non-keratinizing and occurred in an 80-year-old female. The two p16-equivocal cases were HR-HPV DNA positive and mRNA PCR negative. p16 was found to have a positive predictive value of 9%. CONCLUSION: Findings from our cohort of lip SCC suggest that HR-HPV may have an insignificant role in the pathogenesis of SCC at this site. Due to its low ppv, p16 is insufficient to establish HR-HPV infection in SCC of the lip. The combination of p16 and DNA PCR appears to correlate with the presence of transcriptionally active virus. HPV E6/E7 mRNA detection is the gold standard for identifying HR-HPV. mRNA testing is not widely available in sub-Saharan Africa due to technical and financial constraints; however, the test appears to be of great value in p16-equivocal lip SCC.


Assuntos
Carcinoma de Células Escamosas , Neoplasias Labiais , Infecções por Papillomavirus , Humanos , Feminino , Infecções por Papillomavirus/complicações , África do Sul , Neoplasias Labiais/virologia , Neoplasias Labiais/patologia , Idoso , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Masculino , Carcinoma de Células Escamosas/virologia , Carcinoma de Células Escamosas/patologia , Adulto , Estudos de Coortes , Carcinoma de Células Escamosas de Cabeça e Pescoço/virologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Papillomavirus Humano 16/genética
6.
Pol J Pathol ; 75(1): 36-39, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38741427

RESUMO

This research paper evaluates the efficacy of co-testing in precluding cervical cancer, with a particular focus on distinguishable outcomes of the human papillomavirus (HPV) vs. cytology tests. A retrospective review of 5948 patients, who tested positive for high-risk HPV but showed negative cytologic findings, revealed that 15.006% tested positive in subsequent screenings. A comparative analysis of various commercial HPV tests highlighted the precision of mRNA-based HPV testing by Aptima (Hologic) in reducing the likelihood of false-negative cytology. The paper challenges the conviction that a negative cytology alone suffices advocating for a condensed testing interval in instances of positive HPV outcomes, thereby facilitating earlier intervention and optimal preventive care. These findings unveil an exigency for reconsidering preventive strategies based on test outcomes.


Assuntos
Infecções por Papillomavirus , Neoplasias do Colo do Útero , Humanos , Feminino , Estudos Retrospectivos , Infecções por Papillomavirus/virologia , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/complicações , Neoplasias do Colo do Útero/virologia , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/diagnóstico , Adulto , Pessoa de Meia-Idade , Esfregaço Vaginal , Papillomaviridae/genética , Papillomaviridae/isolamento & purificação , Idoso , Displasia do Colo do Útero/virologia , Displasia do Colo do Útero/patologia , Displasia do Colo do Útero/diagnóstico , Detecção Precoce de Câncer/métodos , Papillomavirus Humano , Citologia
7.
Cancer Biol Ther ; 25(1): 2350249, 2024 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-38722731

RESUMO

Head and Neck Squamous Cell Carcinoma (HNSCC) comprises a diverse group of tumors with variable treatment response and prognosis. The tumor microenvironment (TME), which includes microbiome and immune cells, can impact outcomes. Here, we sought to relate the presence of specific microbes, gene expression, and tumor immune infiltration using tumor transcriptomics from The Cancer Genome Atlas (TCGA) and associate these with overall survival (OS). RNA sequencing (RNAseq) from HNSCC tumors in TCGA was processed through the exogenous sequences in tumors and immune cells (exotic) pipeline to identify and quantify low-abundance microbes. The detection of the Papillomaviridae family of viruses assessed HPV status. All statistical analyses were performed using R. A total of 499 RNAseq samples from TCGA were analyzed. HPV was detected in 111 samples (22%), most commonly Alphapapillomavirus 9 (90.1%). The presence of Alphapapillomavirus 9 was associated with improved OS [HR = 0.60 (95%CI: 0.40-0.89, p = .01)]. Among other microbes, Yersinia pseudotuberculosis was associated with the worst survival (HR = 3.88; p = .008), while Pseudomonas viridiflava had the best survival (HR = 0.05; p = .036). Microbial species found more abundant in HPV- tumors included several gram-negative anaerobes. HPV- tumors had a significantly higher abundance of M0 (p < .001) and M2 macrophages (p = .035), while HPV+ tumors had more T regulatory cells (p < .001) and CD8+ T-cells (p < .001). We identified microbes in HNSCC tumor samples significantly associated with survival. A greater abundance of certain anaerobic microbes was seen in HPV tumors and pro-tumorigenic macrophages. These findings suggest that TME can be used to predict patient outcomes and may help identify mechanisms of resistance to systemic therapies.


Assuntos
Neoplasias de Cabeça e Pescoço , Microbiota , Infecções por Papillomavirus , Carcinoma de Células Escamosas de Cabeça e Pescoço , Microambiente Tumoral , Humanos , Neoplasias de Cabeça e Pescoço/virologia , Neoplasias de Cabeça e Pescoço/mortalidade , Neoplasias de Cabeça e Pescoço/imunologia , Neoplasias de Cabeça e Pescoço/microbiologia , Neoplasias de Cabeça e Pescoço/patologia , Neoplasias de Cabeça e Pescoço/genética , Feminino , Infecções por Papillomavirus/virologia , Infecções por Papillomavirus/imunologia , Infecções por Papillomavirus/complicações , Masculino , Microbiota/genética , Microambiente Tumoral/imunologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/virologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/microbiologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/imunologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/mortalidade , Prognóstico , Pessoa de Meia-Idade , Papillomaviridae/genética , Idoso
8.
BMC Cancer ; 24(1): 575, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38724921

RESUMO

OBJECTIVE: To identify the risk factors of cervical high-grade squamous intraepithelial lesion(HSIL) complicated with occult cervical cancer and standardize the management of initial treatment for HSIL. METHOD: The clinical data of patients who underwent total hysterectomy directly due to HSIL in the obstetrics and gynecology department of two tertiary hospitals and three secondary hospitals from 2018 to 2023 were collected. Their general characteristics, pathological parameters and survival status were analyzed. Logistic regression model was used to analyze the correlation between clinical parameters and postoperative pathological upgrading. RESULT: 1. Among the 314 patients with HSIL who underwent total hysterectomy directly, 73.2% were from primary hospitals. 2. 25 patients (7.9%) were pathologically upgraded to cervical cancer, all of which were early invasive cancer. 3. Up to now, there was no recurrence or death in the 25 patients with early-stage invasive cancer, and the median follow-up period was 21 months(range 2-59 months). 4. Glandular involvement(OR 3.968; 95%CI 1.244-12.662) and lesion range ≥ 3 quadrants (OR 6.527; 95% CI 1.78-23.931), HPV 16/18 infection (OR 5.382; 95%CI 1.947-14.872), TCT ≥ ASC-H (OR 4.719; 95%CI 1.892-11.766) were independent risk factors that affected the upgrading of postoperative pathology. 5. The area under the curve (AUC) calculated by the Logistic regression model was 0.840, indicating that the predictive value was good. CONCLUSION: There is a risk of occult cervical cancer in patients with HSIL. Glandular involvement, Lesion range ≥ 3 quadrants, HPV 16/18 infection and TCT ≥ ASC-H are independent risk factors for HSIL combined with occult cervical cancer. The prognosis of biopsy-proved HSIL patients who underwent extrafascial hysterectomy and unexpected early invasive cancer was later identified on specimen may be good.


Assuntos
Histerectomia , Neoplasias do Colo do Útero , Humanos , Feminino , Histerectomia/métodos , Estudos Retrospectivos , Pessoa de Meia-Idade , Neoplasias do Colo do Útero/cirurgia , Neoplasias do Colo do Útero/patologia , Adulto , Fatores de Risco , Idoso , Lesões Intraepiteliais Escamosas Cervicais/patologia , Lesões Intraepiteliais Escamosas Cervicais/cirurgia , Lesões Intraepiteliais Escamosas/patologia , Lesões Intraepiteliais Escamosas/cirurgia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/virologia , Infecções por Papillomavirus/patologia , Displasia do Colo do Útero/cirurgia , Displasia do Colo do Útero/patologia , Gradação de Tumores
10.
Medicine (Baltimore) ; 103(21): e38202, 2024 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-38787972

RESUMO

The human papillomavirus (HPV) belongs to the Papillomaviridae family of viruses which includes small, double-stranded DNA viral agents. Approximately 90% of HPV infections occur asymptomatically and resolve spontaneously. However, infection with high-risk viral strains can lead to the development of preneoplastic lesions, with an increased propensity to become cancerous. The location of these malignancies includes the oral cavity, cervix, vagina, anus, and vulva, among others. The role of HPV in carcinogenesis has already been demonstrated for the aforementioned neoplasia. However, regarding skin malignancies, the mechanisms that pinpoint the role played by HPV in their initiation and progression still elude our sight. Until now, the only fully understood mechanism of viral cutaneous oncogenesis is that of human herpes virus 8 infection in Kaposi sarcoma. In the case of HPV infection, however, most data focus on the role that beta strains exhibit in the oncogenesis of cutaneous squamous cell carcinoma (cSCC), along with ultraviolet radiation (UVR) and other environmental or genetic factors. However, recent epidemiological investigations have highlighted that HPV could also trigger the onset of other non-melanocytic, for example, basal cell carcinoma (BCC), and/or melanocytic skin cancers, for example, melanoma. Herein, we provide an overview of the role played by HPV in benign and malignant skin lesions with a particular focus on the main epidemiological, pathophysiological, and molecular aspects delineating the involvement of HPV in skin cancers.


Assuntos
Papillomaviridae , Infecções por Papillomavirus , Neoplasias Cutâneas , Humanos , Neoplasias Cutâneas/virologia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/virologia , Papillomaviridae/patogenicidade , Papillomaviridae/genética , Carcinoma de Células Escamosas/virologia , Carcinoma Basocelular/virologia , Melanoma/virologia , Papillomavirus Humano
11.
PLoS One ; 19(5): e0301997, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38781268

RESUMO

INTRODUCTION: Women living with HIV experience heightened risk of cervical cancer, and over 50% of cases in Southern Africa are attributed to HIV co-infection. Cervical cancer interventions tailored by HIV status delivered with HIV antiretroviral therapy (ART) for treatment can decrease cancer incidence, but impact on HIV-related disparities remains understudied. METHODS: Using a dynamic model calibrated to KwaZulu-Natal, South Africa, we projected HIV prevalence, cervical cancer incidence, and proportion of cancer cases among women living with HIV between 2021-2071. Relative to the status quo of moderate intervention coverage, we modeled three additive scenarios: 1) ART scale-up only; 2) expanded human papillomavirus (HPV) vaccination, screening, and treatment; and 3) catch-up HPV vaccination and enhanced screening for women living with HIV. RESULTS: Under the status quo, HIV prevalence among women aged 15+ decreased from a median of 35% [Uncertainty Range (UR): 26-42%] in 2021 to 25% [19-34%] in 2071. The proportion of cervical cancer cases that were women living with HIV declined from 73% [63-86%] to 58% [47-74%], but incidence remained 4.3-fold [3.3-5.7] that of women without HIV. ART scale-up reduced HIV prevalence in 2071, but increased the incidence rate ratio to 5.2 [3.7-7.3]. Disparities remained after expanding cancer interventions for all women (incidence rate ratio: 4.8 [3.6-7.6]), while additional catch-up HPV vaccination and screening for women living with HIV decreased the incidence rate ratio to 2.7 [1.9-3.4] in 2071. CONCLUSIONS: Tailored cervical cancer interventions for women living with HIV can counteract rising cancer incidence incurred by extended life expectancy on ART and reduce disparate cancer burden.


Assuntos
Infecções por HIV , Vacinas contra Papillomavirus , Neoplasias do Colo do Útero , Humanos , Feminino , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias do Colo do Útero/virologia , Infecções por HIV/epidemiologia , Infecções por HIV/tratamento farmacológico , Infecções por HIV/complicações , Adulto , Vacinas contra Papillomavirus/uso terapêutico , Vacinas contra Papillomavirus/administração & dosagem , Incidência , Prevalência , Adolescente , Adulto Jovem , África do Sul/epidemiologia , Pessoa de Meia-Idade , Detecção Precoce de Câncer , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/prevenção & controle
13.
Medicina (Kaunas) ; 60(5)2024 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-38792882

RESUMO

Background and Objectives: The investigation of oncogenic viruses and their potential association with breast cancer (BC) remains an intriguing area of study. The current work aims to assess evidence of three specific viruses, human papillomavirus (HPV), cytomegalovirus (CMV), and Epstein-Barr virus (EBV) in BC samples and to explore their relationship with relevant clinicopathological variables. Materials and Methods: The analysis involved BC samples from 110 Jordanian female patients diagnosed with BC and breast tissue samples from 30 control patients with no evidence of breast malignancy, investigated using real-time PCR. The findings were then correlated with various clinico-pathological characteristics of BC. Results: HPV was detected in 27 (24.5%), CMV in 15 (13.6%), and EBV in 18 (16.4%) BC patients. None of the control samples was positive for HPV or CMV while EBV was detected in only one (3.3%) sample. While (HPV/EBV), (HPV/CMV), and (EBV/CMV) co-infections were reported in 1.8%, 2.7%, and 5.5%, respectively, coinfection with the three viruses (HPV/CMV/EBV) was not reported in our cohort. A statistically significant association was observed between HPV status and age (p = 0.047), and between clinical stage and CMV infection (p = 0.015). Conclusions: Our findings indicate the presence or co-presence of HPV, CMV, and EBV in the BC subpopulation, suggesting a potential role in its development and/or progression. Further investigation is required to elucidate the underlying mechanisms that account for the exact role of oncoviruses in breast carcinogenesis.


Assuntos
Neoplasias da Mama , Citomegalovirus , Infecções por Vírus Epstein-Barr , Herpesvirus Humano 4 , Humanos , Feminino , Neoplasias da Mama/virologia , Jordânia/epidemiologia , Pessoa de Meia-Idade , Herpesvirus Humano 4/isolamento & purificação , Citomegalovirus/isolamento & purificação , Adulto , Idoso , Infecções por Vírus Epstein-Barr/complicações , Infecções por Vírus Epstein-Barr/epidemiologia , Infecções por Citomegalovirus/epidemiologia , Infecções por Citomegalovirus/complicações , Infecções por Citomegalovirus/virologia , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/virologia , Reação em Cadeia da Polimerase em Tempo Real , Papillomavirus Humano
14.
J Med Virol ; 96(5): e29674, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38757834

RESUMO

Human Papillomaviruses (HPV) are a diverse family of non-enveloped dsDNA viruses that infect the skin and mucosal epithelia. Persistent HPV infections can lead to cancer frequently involving integration of the virus into the host genome, leading to sustained oncogene expression and loss of capsid and genome maintenance proteins. Microhomology-mediated double-strand break repair, a DNA double-stranded breaks repair pathway present in many organisms, was initially thought to be a backup but it's now seen as vital, especially in homologous recombination-deficient contexts. Increasing evidence has identified microhomology (MH) near HPV integration junctions, suggesting MH-mediated repair pathways drive integration. In this comprehensive review, we present a detailed summary of both the mechanisms underlying MH-mediated repair and the evidence for its involvement in HPV integration in cancer. Lastly, we highlight the involvement of these processes in the integration of other DNA viruses and the broader implications on virus lifecycles and host innate immune response.


Assuntos
Carcinogênese , Papillomaviridae , Infecções por Papillomavirus , Humanos , Papillomaviridae/patogenicidade , Papillomaviridae/genética , Papillomaviridae/fisiologia , Infecções por Papillomavirus/virologia , Infecções por Papillomavirus/complicações , Integração Viral , Reparo do DNA , Quebras de DNA de Cadeia Dupla , DNA Viral/genética
16.
Viruses ; 16(5)2024 04 25.
Artigo em Inglês | MEDLINE | ID: mdl-38793549

RESUMO

Human papillomavirus (HPV), an oncogenic DNA virus, is the most common sexually transmitted virus and significant public health concern globally. Despite the substantial prevalence of HPV infection among men, routine testing remains elusive due to the lack of approved HPV tests and the complexity of detection methods. Various studies have explored the link between HPV and genitourinary cancers, revealing different associations influenced by geographic variation, histological subtype and methodological differences. These findings underscore the importance of further research to elucidate the role of HPV in male urogenital cancers. This comprehensive review delves into the intricate relationship between HPV and male genitourinary cancers, shedding light on the virus's oncogenic mechanisms and its reported prevalence. A deeper understanding of HPV's implications for male health is essential for advancing public health initiatives and reducing the burden of urogenital cancers worldwide.


Assuntos
Carcinogênese , Papillomaviridae , Infecções por Papillomavirus , Neoplasias Urogenitais , Humanos , Infecções por Papillomavirus/virologia , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/complicações , Masculino , Neoplasias Urogenitais/virologia , Papillomaviridae/genética , Papillomaviridae/patogenicidade , Papillomaviridae/fisiologia , Prevalência , Papillomavirus Humano
17.
Viruses ; 16(5)2024 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-38793561

RESUMO

The human papillomavirus is the most common sexually transmitted infection in the world. Most HPV infections clear spontaneously within 2 years of infection; however, persistent infection can result in a wide array of diseases, ranging from genital warts to cancer. Most cases of cervical, anal, and oropharyngeal cancers are due to HPV infection, with cervical cancer being one of the leading causes of cancer death in women worldwide. Screening is available for HPV and cervical cancer, but is not available everywhere, particularly in lower-resource settings. HPV infection disproportionally affects individuals living with HIV, resulting in decreased clearance, increased development of cancer, and increased mortality. The development of the HPV vaccine has shown a drastic decrease in HPV-related diseases. The vaccine prevents cervical cancer with near 100% efficacy, if given prior to first sexual activity. Vaccination uptake remains low worldwide due to a lack of access and limited knowledge of HPV. Increasing awareness of HPV and access to vaccination are necessary to decrease cancer and HPV-related morbidity and mortality worldwide.


Assuntos
Papillomaviridae , Infecções por Papillomavirus , Vacinas contra Papillomavirus , Neoplasias do Colo do Útero , Humanos , Infecções por Papillomavirus/prevenção & controle , Infecções por Papillomavirus/virologia , Infecções por Papillomavirus/complicações , Vacinas contra Papillomavirus/administração & dosagem , Feminino , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias do Colo do Útero/virologia , Papillomaviridae/patogenicidade , Neoplasias/virologia , Vacinação , Neoplasias do Ânus/prevenção & controle , Neoplasias do Ânus/virologia , Neoplasias do Ânus/epidemiologia , Infecções por HIV/complicações , Infecções por HIV/virologia , Infecções por HIV/prevenção & controle , Neoplasias Orofaríngeas/virologia , Neoplasias Orofaríngeas/prevenção & controle , Masculino , Papillomavirus Humano
18.
Am J Obstet Gynecol ; 230(4): 430.e1-430.e11, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38569830

RESUMO

BACKGROUND: Many countries have implemented active surveillance (ie, leaving the lesion untreated) as an option among younger women with cervical intraepithelial neoplasia grade 2 because regression rates are high and excisional treatment increases the risk for preterm birth in subsequent pregnancies. However, early identification of women at increased risk for progression to cervical intraepithelial neoplasia grade 3 or worse is important to ensure timely treatment. Because women who have received a human papillomavirus vaccine have a lower risk for cervical cancer, they may have a lower risk for progression of untreated cervical intraepithelial neoplasia grade 2 to cervical intraepithelial neoplasia grade 3 or worse. OBJECTIVE: This study aimed to investigate if women who received a human papillomavirus vaccine and who are undergoing active surveillance for cervical intraepithelial neoplasia grade 2 are less likely to progress to cervical intraepithelial neoplasia grade 3 or worse when compared with women who did not receive the vaccine. STUDY DESIGN: We conducted a population-based cohort study in Denmark using data from national health registers. We identified all women aged 18 to 40 years who were undergoing active surveillance for cervical intraepithelial neoplasia grade 2 from January 1, 2007, to December 31, 2020. Women with a previous record of cervical intraepithelial neoplasia grade 2 or worse, hysterectomy, or a loop electrosurgical excision procedure were excluded. Exposure was defined as having received ≥1 dose of a human papillomavirus vaccine at least 1 year before the cervical intraepithelial neoplasia grade 2 diagnosis. We used cumulative incidence functions to estimate the risk for progression to cervical intraepithelial neoplasia grade 3 or worse within 28 months using hysterectomy, emigration, and death as competing events. We used modified Poisson regression to calculate crude and adjusted relative risks of progression during the 28-month surveillance period. Results were stratified by age at vaccination and adjusted for index cytology, disposable income, and educational level. RESULTS: The study population consisted of 7904 women of whom 3867 (48.9%) were vaccinated at least 1 year before a diagnosis of cervical intraepithelial neoplasia grade 2. At the time of cervical intraepithelial neoplasia grade 2 diagnosis, women who were vaccinated were younger (median age, 25 years; interquartile range, 23-27 years) than those who were not (median age, 29 years; interquartile range, 25-33 years). The 28-month cumulative risk for cervical intraepithelial neoplasia grade 3 or worse was significantly lower among women who were vaccinated before the age of 15 years (22.9%; 95% confidence interval, 19.8-26.1) and between the ages of 15 and 20 years (31.5%; 95% confidence interval, 28.8-34.3) when compared with women who were not vaccinated (37.6%; 95% confidence interval, 36.1-39.1). Thus, when compared with women who were not vaccinated, those who were vaccinated before the age of 15 years had a 35% lower risk for progression to cervical intraepithelial neoplasia grade 3 or worse (adjusted relative risk, 0.65; 95% confidence interval, 0.57-0.75), whereas women who were vaccinated between the ages of 15 and 20 years had a 14% lower risk (adjusted relative risk, 0.86; 95% confidence interval, 0.79-0.95). For women who were vaccinated after the age of 20 years, the risk was comparable with that among women who were not vaccinated (adjusted relative risk, 1.02; 95% confidence interval, 0.96-1.09). CONCLUSION: Women who were vaccinated and who were undergoing active surveillance for cervical intraepithelial neoplasia grade 2 had a lower risk for progression to cervical intraepithelial neoplasia grade 3 or worse during 28 months of follow-up when compared with women who were not vaccinated but only if the vaccine was administered by the age of 20 years. These findings may suggest that the human papillomavirus vaccination status can be used for risk stratification in clinical management of cervical intraepithelial neoplasia grade 2.


Assuntos
Infecções por Papillomavirus , Vacinas contra Papillomavirus , Nascimento Prematuro , Displasia do Colo do Útero , Neoplasias do Colo do Útero , Gravidez , Humanos , Feminino , Recém-Nascido , Adolescente , Adulto Jovem , Adulto , Papillomavirus Humano , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Estudos de Coortes , Vacinas contra Papillomavirus/uso terapêutico , Displasia do Colo do Útero/patologia , Neoplasias do Colo do Útero/patologia
19.
J Med Virol ; 96(4): e29549, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38563352

RESUMO

Previous research has explored theories regarding the vertical transmission of human papillomavirus (HPV) infection and its association with adverse pregnancy and perinatal outcomes. However, the impact of maternal HPV infection on congenital anomalies (CAs) in offspring remains relatively understudied. We conducted a population-based cohort study linking the Taiwan Birth Registry, Taiwan Death Registry, and National Health Insurance Research Database, in which newborns born in Taiwan between 2009 and 2015 were included. We established a maternal HPV infection cohort comprising 37 807 newborns and matched them with a comparison group of 151 228 newborns at a 1:4 ratio based on index year, age, and sex. The study examined a composite outcome and subgroups of different types of congenital malformations. Differences in cumulative incidence of CAs were assessed using Kaplan-Meier curves and log-rank tests. Adjusted hazard ratios (aHRs) were estimated using Cox proportional hazard regressions. No significant association was found between HPV infection and the broad spectrum of CAs (aHR: 1.04, 95% confidence interval [CI]: 0.98-1.10; log-rank test p = 0.14). However, we observed a 19% increased risk of musculoskeletal CAs in the maternal HPV infection group (aHR: 1.19; 95% CI: 1.05-1.34) compared to those without maternal HPV exposure. Other factors, including the type of HPV (aHR: 0.65; 95% CI: 0.16-2.63), the timing of exposure (during or before pregnancy), and maternal age (aHR for <30 years: 1.02, 95% CI: 0.94-1.1; aHR for 30-39 years: 1.05, 95% CI: 0.99-1.11; aHR for ≥40 years: 0.88, 95% CI: 0.67-1.17), did not significantly affect the risk for any CA. In conclusion, gestation detection of HPV infection was associated with musculoskeletal CAs but not other major CAs. Prospective studies are warranted to elucidate the necessity of prenatal screening in populations at risk.


Assuntos
Infecções por Papillomavirus , Gravidez , Feminino , Humanos , Recém-Nascido , Adulto , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Estudos de Coortes , Estudos Prospectivos , Pesquisa , Taiwan/epidemiologia , Fatores de Risco
20.
Iran J Med Sci ; 49(3): 156-166, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38584650

RESUMO

Background: Human papillomavirus (HPV)-related multi phenotypic sinonasal carcinoma (HMSC) is a recently described tumor subtype with an unknown prognosis, often misdiagnosed with other sinonasal carcinomas, and associated with high-risk HPV (HR-HPV). The present study aimed to evaluate the expression of vascular endothelial growth factor (VEGF), Bcl-2-associated X protein (BAX), epidermal growth factor receptors (EGFR), ProExTMC, and human telomerase reverse transcriptase (hTERT) and assess their association with survival and clinicopathological characteristics. Methods: Between 2017 and 2022, 40 HMSC patients underwent surgical resection at the School of Medicine, Zagazig University Hospitals (Zagazig, Egypt). Tissue samples were examined for the presence of HR-HPV; absence of myeloblastosis (MYB), MYB proto-oncogene like 1 (MYBL1), and nuclear factor I/B (NFIB) fusions and the presence of myoepithelial proteins (calponin, S100, SMA), squamous differentiation markers (p63, p40, calponin), VEGF, BAX, ProExTMC, and hTERT by immunohistochemistry. All patients were followed up for about 54 months until death or the last known survival data. Data were analyzed using the Chi square test and Kaplan-Meier method. Results: The expression of VEGF, hTERT, and ProExTMC was significantly associated with age, advanced tumor stages, lymph node metastasis, tumor size, mortality, relapse, poor disease-free survival (DFS), and overall survival (OS) (P<0.001). BAX expression was significantly associated with tumor size, age, poor DFS, and relapse (P=0.01, P<0.001, P=0.035, and P=0.002, respectively). Conclusion: HMSC is strongly associated with HR-HPV. The expression of VEGF, EGFR, BAX, hTERT, and ProExTMC is associated with aggressive malignant behavior, poor survival, and poor prognosis, making them novel prognostic biomarkers for targeted therapeutics in HMSC.


Assuntos
Carcinoma , Infecções por Papillomavirus , Neoplasias dos Seios Paranasais , Humanos , Fator A de Crescimento do Endotélio Vascular , Proteína X Associada a bcl-2 , Papillomavirus Humano , Prognóstico , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/diagnóstico , Papillomaviridae , Recidiva Local de Neoplasia/complicações , Carcinoma/diagnóstico , Carcinoma/patologia , Neoplasias dos Seios Paranasais/diagnóstico , Neoplasias dos Seios Paranasais/patologia , Receptores ErbB , Recidiva , Biomarcadores
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