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1.
Surg Clin North Am ; 104(3): 517-527, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38677817

RESUMEN

Anal intraepithelial neoplasia (AIN) are precancerous lesions and are sequela of human papilloma virus (HPV) infection. AIN is classified as low-grade squamous intraepithelial lesion or high-grade squamous intraepithelial lesion. Screening with anal cytology and anoscopy should be considered for high-risk populations. Diagnosis is made through high resolution anaoscopy and biopsy. Options for treatment include ablation and several topical therapies; however, recurrence rates are high for all treatment options, and an ongoing surveillance is necessary to prevent progression to anal squamous cell carcinoma. HPV vaccination is recommended to prevent disease.


Asunto(s)
Neoplasias del Ano , Condiloma Acuminado , Infecciones por Papillomavirus , Humanos , Neoplasias del Ano/diagnóstico , Neoplasias del Ano/terapia , Neoplasias del Ano/patología , Neoplasias del Ano/virología , Condiloma Acuminado/diagnóstico , Condiloma Acuminado/terapia , Condiloma Acuminado/virología , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/diagnóstico , Lesiones Precancerosas/diagnóstico , Lesiones Precancerosas/patología , Lesiones Precancerosas/terapia , Lesiones Precancerosas/virología , Lesiones Intraepiteliales Escamosas/diagnóstico , Lesiones Intraepiteliales Escamosas/patología , Lesiones Intraepiteliales Escamosas/virología , Carcinoma in Situ/diagnóstico , Carcinoma in Situ/terapia , Carcinoma in Situ/patología , Carcinoma in Situ/virología
2.
Invest Ophthalmol Vis Sci ; 62(14): 11, 2021 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-34779821

RESUMEN

Purpose: The genomic alterations contributing to the pathogenesis of conjunctival squamous cell carcinomas (SCCs) and their precursor lesions are poorly understood and hamper our ability to develop molecular therapies to reduce the recurrence rates and treatment-related morbidities of this disease. We aimed to characterize the somatic DNA alterations in human papillomavirus (HPV)-positive and HPV-negative conjunctival SCC. Methods: Patients diagnosed with conjunctival SCC in situ or SCC treated in ocular oncology referral centers in Denmark were included. HPV detection (HPV DNA PCR, p16 immunohistochemistry, and mRNA in situ hybridization) and targeted capture-based next-generation sequencing of 523 genes frequently involved in cancer were performed to describe the mutational profile based on HPV status. Results: Tumor tissue was available in 33 cases (n = 8 conjunctival SCCs in situ, n = 25 conjunctival SCCs), constituting 25 male and 8 female patients. Nine cases were HPV positive. The HPV-positive SCCs in situ and SCCs were characterized by transcriptionally active high-risk HPV (types 16 and 39) within the tumor cells, frequent mutations in PIK3CA (n = 5/9), and wild-type TP53, CDKN2A, and RB1, while the HPV-negative counterparts harbored frequent mutations in TP53 (n = 21/24), CDKN2A (n = 7/24), and RB1 (n = 6/24). Conclusions: Our findings have delineated two potentially distinct distributions of somatic mutations in conjunctival SCC based on HPV status-pointing to different biological mechanisms of carcinogenesis. The present findings support a causal role of HPV in a subset of conjunctival SCC.


Asunto(s)
Carcinoma in Situ/virología , Carcinoma de Células Escamosas/virología , Neoplasias de la Conjuntiva/virología , Variaciones en el Número de Copia de ADN/genética , ADN Viral/genética , Papillomavirus Humano 16/genética , Infecciones por Papillomavirus/virología , Anciano , Anciano de 80 o más Años , Carcinoma in Situ/patología , Carcinoma de Células Escamosas/patología , Fosfatidilinositol 3-Quinasa Clase I/genética , Neoplasias de la Conjuntiva/patología , Inhibidor p16 de la Quinasa Dependiente de Ciclina/genética , Análisis Mutacional de ADN/métodos , Femenino , Genómica , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Inmunohistoquímica , Hibridación in Situ , Masculino , Persona de Mediana Edad , Infecciones por Papillomavirus/patología , Reacción en Cadena de la Polimerasa , ARN Mensajero/genética , Proteínas de Unión a Retinoblastoma/genética , Estudios Retrospectivos , Proteína p53 Supresora de Tumor/genética , Ubiquitina-Proteína Ligasas/genética
3.
PLoS One ; 16(9): e0256852, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34469465

RESUMEN

The human papillomavirus (HPV) 16 early promoter and L1 gene methylation were quantitatively measured using pyrosequencing assay in anal cells collected from men who have sex with men (MSM) to determine potential biomarkers for HPV-related anal cancer. The methylation patterns of HPV16 genes, including the early promoter (CpG 31, 37, 43, 52, and 58) and L1 genes (CpG 5600, 5606, 5609, 5615, 7136, and 7145), were analyzed in 178 anal samples. The samples were diagnosed as normal, anal intraepithelial neoplasia (AIN) 1, AIN2, and AIN3. Low methylation levels of the early promoter (< 10%) and L1 genes (< 20%) were found in all detected normal anal cells. In comparison, medium to high methylation (≥ 20-60%) in the early promoter was found in 1.5% (1/67) and 5% (2/40) of AIN1 and AIN2-3 samples, respectively. Interestingly, slightly increased L1 gene methylation levels (≥ 20-60%), especially at the HPV16 5'L1 regions CpGs 5600 and 5609, were demonstrated in AIN2-3 specimen. Moreover, a negative correlation between high HPV16 L1 gene methylation at CpGs 5600, 5609, 5615, and 7145 and a percentual CD4 count was found in AIN3 HIV positive cases. When comparing the methylation status of AIN2-3 to that of normal/AIN1 lesions, the results indicated the potential of using HPV16 L1 gene methylation as a biomarker for HPV-related cancer screening.


Asunto(s)
Neoplasias del Ano/epidemiología , Biomarcadores de Tumor/genética , Proteínas de la Cápside/genética , Carcinoma in Situ/epidemiología , Proteínas Oncogénicas Virales/genética , Infecciones por Papillomavirus/epidemiología , Adulto , Neoplasias del Ano/sangre , Neoplasias del Ano/patología , Neoplasias del Ano/virología , Recuento de Linfocito CD4 , Carcinoma in Situ/sangre , Carcinoma in Situ/patología , Carcinoma in Situ/virología , Línea Celular , Islas de CpG , Metilación de ADN , Genes Virales , Papillomavirus Humano 16/genética , Papillomavirus Humano 16/aislamiento & purificación , Humanos , Masculino , Infecciones por Papillomavirus/sangre , Infecciones por Papillomavirus/patología , Infecciones por Papillomavirus/virología , Regiones Promotoras Genéticas , Estudios Retrospectivos , Medición de Riesgo/métodos , Minorías Sexuales y de Género/estadística & datos numéricos
4.
Viruses ; 13(8)2021 08 02.
Artículo en Inglés | MEDLINE | ID: mdl-34452388

RESUMEN

Human papillomaviruses (HPV) are a large group of DNA viruses that infect the basal cells of the stratified epithelium at different anatomic locations. In the ocular adnexal region, the mucosa of the conjunctiva and the lacrimal drainage system, as well as the eyelid skin, are potential locations for HPV-related neoplasia. The role of HPV in squamous cell neoplasia of the ocular adnexa has been debated for several decades. Due to the rarity of all these tumors, large studies are not available in the scientific literature, thereby hampering the precision of the HPV prevalence estimates and the ability to conclude. Nevertheless, increasing evidence supports that defined subsets of conjunctival papillomas, intraepithelial neoplasia, and carcinomas develop in an HPV-dependent pathway. The role of HPV in squamous cell tumors arising in the lacrimal drainage system and the eyelid is still uncertain. Further, the potential of HPV status as a diagnostic, prognostic, or predictive biomarker in these diseases is a topic for future research.


Asunto(s)
Carcinoma de Células Escamosas/virología , Conjuntiva/virología , Papillomaviridae/patogenicidad , Infecciones por Papillomavirus/complicaciones , Carcinoma in Situ/virología , Conjuntiva/citología , Humanos , Aparato Lagrimal/virología
5.
Am J Surg Pathol ; 45(11): 1573-1578, 2021 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-34231547

RESUMEN

p16 is the most useful diagnostic marker for human papillomavirus (HPV)-associated anogenital lesions. In the cervix, the pattern of p16 immunoreactivity generally correlates with lesion severity. p16 expression in anal intraepithelial neoplasia (AIN) is far less studied. Whether such correlation holds true has to be determined. We correlated the degree and pattern of p16 immunohistochemistry (IHC) results with morphologic diagnoses of 1000 anal squamous and transitional zone biopsy specimens. Using the Lower Anogenital Squamous Terminology criteria, p16 IHC results were classified as block staining, partial staining, or negative. Among 150 samples without morphologic evidence of AIN, p16 was negative in 85% and partial staining in 15%. AIN 1 (n=400) revealed diverse results: 28% negative, 35% partial, and 37% block staining. Among AIN 2 (n=298), 89% were block, 9% partial staining, and 2% negative. AIN 3 (n=152) revealed block (95%) or partial staining (5%). For the detection of AIN 2/3, p16 block staining yielded 91% sensitivity, 73% specificity, 80% positive predictive value, 91% negative predictive value, and a Youden Index of 0.64. Combining block staining and partial staining slightly increased sensitivity (99%) and negative predictive value (98%), but significantly decreased specificity (43%), positive predictive value (59%) and Youden Index (0.42, P<0.001). As with the cervix, p16 immunoreactivity correlates with morphologic diagnoses of AIN. Block staining offers the optimal diagnostic value for AIN 2/3. Caution is required since AIN 1 frequently exhibits block staining; the prognostic value of p16 warrants further investigation.


Asunto(s)
Neoplasias del Ano/química , Biomarcadores de Tumor/análisis , Carcinoma in Situ/química , Inhibidor p16 de la Quinasa Dependiente de Ciclina/análisis , Inmunohistoquímica , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/virología , Lesiones Precancerosas/metabolismo , Lesiones Intraepiteliales Escamosas/metabolismo , Neoplasias del Ano/patología , Neoplasias del Ano/virología , Biopsia , Carcinoma in Situ/patología , Carcinoma in Situ/virología , Bases de Datos Factuales , Humanos , Hibridación in Situ , Masculino , Clasificación del Tumor , Papillomaviridae/genética , Lesiones Precancerosas/patología , Lesiones Precancerosas/virología , Valor Predictivo de las Pruebas , ARN Viral/genética , Lesiones Intraepiteliales Escamosas/patología , Lesiones Intraepiteliales Escamosas/virología
6.
Gynecol Oncol ; 162(3): 584-589, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34226020

RESUMEN

OBJECTIVE: to profile patients with vaginal intraepithelial neoplasia (VAIN), to evaluate natural history and to identify risk factors for persistence, progression and recurrence. METHODS: At West China Second University Hospital, all patients with histologically confirmed VAIN over a five-year period with minimum follow-up of 6 months were retrospectively identified. Demographics, medical history and clinical information related to the diagnosis and treatment were extracted. Clinical outcomes included normalization, persistence, progression and recurrence. We evaluated risk factors by univariate and multivariate analyses. RESULTS: A total of 1478 patients fulfilled the inclusion criteria with a median follow-up of 14 months (range, 6-60 months). In 86.6% of patients, VAIN went into normalization, 6.4% persisted, 3.5% progressed and 3.5% recurred. Besides, 24 (7.1%) VAIN 3 patients and 4 (0.8%) progressed to cancer, accounting for 85.7% and 14.3% of cancer cases, respectively. VAIN 3 patients treated with excision yielded superior outcomes. Risk factors for persistence were HPV 16, 56, 59 and 43 infections, for progression were prior hysterectomy for cervical lesions and HPV 56 infection, for recurrence were HPV 61 infection. CONCLUSION: Although VAIN will regress in most patients, there are still risks of persistence, recurrence and progression, even malignancy. Therefore, a long-term follow-up is recommended. Patients with VAIN 3 are at higher risk of progressing to cancer and excision is preferred. HPV 16, 56, 59 and 43 infections might associate with an increased risk of persistence and patients with prior hysterectomy for cervical lesions tend to progress.


Asunto(s)
Carcinoma in Situ/patología , Lesiones Precancerosas/patología , Neoplasias Vaginales/patología , Adolescente , Adulto , Anciano , Carcinoma in Situ/virología , ADN Viral/genética , Progresión de la Enfermedad , Femenino , Humanos , Persona de Mediana Edad , Papillomaviridae/genética , Papillomaviridae/aislamiento & purificación , Lesiones Precancerosas/virología , Factores de Riesgo , Neoplasias del Cuello Uterino/cirugía , Neoplasias Vaginales/virología , Adulto Joven
8.
J Am Soc Cytopathol ; 10(4): 406-413, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33896747

RESUMEN

INTRODUCTION: Optimal screening for detection of anal precancer has not been established, and most studies involve very high-risk populations. We evaluated high-risk human papillomavirus (HPV) testing and anal cytology to detect high-grade anal intraepithelial neoplasia (≥AIN2) in a cohort with mostly moderate risk factors for AIN. METHODS: Patients ≥35 years old undergoing anal biopsy for various lesions received HPV testing by Roche cobas and a subset by Hologic APTIMA HPV assays with concurrent anal ThinPrep cytology. Biopsies were blindly reviewed by 3 authors, and consensus diagnosis was compared with HPV and cytology results. Sensitivity and specificity for ≥AIN2 detection by HPV testing and cytology (≥ASC-US) were calculated. RESULTS: Among 64 patients, 19 (29.7%) showed ≥AIN2 on biopsy. All patients were tested by cobas, and 35 (54.7%) were positive. A subset of 39 patients were also tested by APTIMA, and 18 (46.2%) were positive. Positive cytology (≥ASC-US) was present in 37 (57.8%) patients, with 27 (73.0%) of these positive by cobas. HPV testing alone yielded 75.0% and 84.2% sensitivity for APTIMA and cobas, respectively; specificity was 66.7% and 57.8%. Sensitivity and specificity of cytology alone was 78.9% and 51.1%. Combined HPV testing and cytology had a sensitivity and specificity of 91.7% and 37.0% for APTIMA and 94.7% and 40.0% for cobas. CONCLUSIONS: Combined HPV testing and cytology had the highest sensitivity for ≥AIN2 detection, with a performance comparable to cervical cancer screening tests, suggesting this strategy may represent a viable screening option in a population with moderate risk factors for AIN.


Asunto(s)
Alphapapillomavirus/genética , Neoplasias del Ano/diagnóstico , Carcinoma in Situ/diagnóstico , Infecciones por Papillomavirus/diagnóstico , Reacción en Cadena en Tiempo Real de la Polimerasa/métodos , Adulto , Anciano , Anciano de 80 o más Años , Canal Anal/patología , Neoplasias del Ano/patología , Neoplasias del Ano/virología , Biopsia/métodos , Carcinoma in Situ/patología , Carcinoma in Situ/virología , Estudios de Cohortes , Detección Precoz del Cáncer/métodos , Femenino , Genotipo , Humanos , Masculino , Tamizaje Masivo/métodos , Persona de Mediana Edad , Técnicas de Diagnóstico Molecular/métodos , Infecciones por Papillomavirus/patología , Infecciones por Papillomavirus/virología , Factores de Riesgo , Sensibilidad y Especificidad
9.
Cancer Med ; 10(7): 2482-2488, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33682355

RESUMEN

This study aims to evaluate HR-HPV viral load in the cervical lesion assessment and its diagnostic value on the triage of ASCUS. The three-step protocol for cervical cancer screening was carried out in 5171 patients from June 2017 to August 2019, and 1620 histopathological results were obtained. The positive rate of HR-HPV and TCT increased with the aggravation of pathological grades of cervical lesions. The sensitivity and specificity of HR-HPV (DH3) to detect CIN II+ were 91.91% and 84.46%, respectively. In comparison, the corresponding results of the cytology test were 80.51% and 83.12%. HPV16/18 viral load was positively correlated with the grade of cervical lesions (p < 0.001, r = 0.321). The diagnostic efficiency of AUC by applying HPV16/18 viral load was 0.682 for the diagnosis of CIN II+. The optimal HPV16/18 viral load for predicting CIN II+ was 6.80 RLU/CO (relative light units/cut-off), with corresponding sensitivity of 48.6%, specificity of 79.7%, and Youden index of 0.283. In the ASCUS population, viral loads were statistically different in HPV16/18 and the other 12 HR-HPV when compared cervicitis group with CIN I group and CIN II+ group (all p < 0.05). Statistical differences were detected concerning HPV16/18 viral load, contact bleeding status, and smoking status when compared cervicitis group with CIN I group and CIN II+ group (p < 0.05), with a corresponding odds ratio of 1.004, 1.533, and 5.513, respectively. Our findings suggest that HR-HPV viral load can be regarded as a useful tool to predict the grade of cervical lesions for ASCUS triage. ClinicalTrials.gov ID: NCT03178136.


Asunto(s)
Células Escamosas Atípicas del Cuello del Útero/virología , Carcinoma in Situ/virología , Papillomavirus Humano 16 , Papillomavirus Humano 18 , Neoplasias del Cuello Uterino/virología , Carga Viral , Adulto , Anciano , Células Escamosas Atípicas del Cuello del Útero/patología , Carcinoma in Situ/patología , Femenino , Humanos , Persona de Mediana Edad , Clasificación del Tumor , Oportunidad Relativa , Papillomaviridae , Sensibilidad y Especificidad , Fumar , Triaje , Neoplasias del Cuello Uterino/patología , Cervicitis Uterina/virología , Hemorragia Uterina/virología , Frotis Vaginal
10.
Arch Virol ; 166(4): 1157-1161, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33550506

RESUMEN

Numerous raised plaques were observed on the feet of a red-billed gull (Chroicocephalus novaehollandiae scopulinus) that had been found dead. The plaques consisted of thickened epidermis with cell changes indicative of papillomavirus (PV) infection prominent within affected areas. Evidence suggesting progression to neoplasia was visible in one lesion. A DNA sequence that was most similar, but only 68.3% identical, to duck PV type 3 was amplified from the papillomas, suggesting a novel PV type. Lesions containing PV DNA have only previously been reported in three avian species. This is the first evidence that PVs could cause neoplasia in birds.


Asunto(s)
Enfermedades de las Aves/virología , Carcinoma in Situ/veterinaria , Charadriiformes/virología , Papiloma/veterinaria , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/veterinaria , Animales , Enfermedades de las Aves/patología , Proteínas de la Cápside/genética , Carcinoma in Situ/patología , Carcinoma in Situ/virología , ADN Viral/genética , Pie/patología , Pie/virología , Papiloma/patología , Papiloma/virología , Papillomaviridae/clasificación , Papillomaviridae/genética , Infecciones por Papillomavirus/patología , Infecciones por Papillomavirus/virología , Filogenia
11.
Cancer Med ; 10(5): 1900-1909, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33605553

RESUMEN

BACKGROUND: Human papillomavirus (HPV) genotype testing has limited utility to identify human immunodeficiency virus-infected (HIV+) women's risk for developing cervical cancer (CC) due to high positivity rate of high-risk (HR) HPVs. We investigated the accuracy of HPV testing in isolation/in combination with CD4 and HIV viral load (VL) to identify HIV+ women at risk for developing CC. METHODS: Study consisted of 344 HIV+ women on combination antiretroviral therapy (cART), tested for cervical cytology/HPV using the Cobas test and had data on absolute CD4 count and VL measurements. We calculated the positive predictive value (PPV) and negative predictive value (NPV) of HPV testing, pre-, post-cART, and current CD4 and VL in isolation and in combinations to identify those with or free of higher than atypical squamous cells of unknown significance (ASCUS+) or low-grade intraepithelial lesions (LSIL+). RESULTS: HPV test in combination with pre-/post-cART or current CD4 counts and VL had higher PPVs compared to HPV test alone for identifying ASCUS+ or LSIL+. PPV of HPV-CD4 combinations yielded higher PPVs compared to HPV-VL combinations. The NPVs with pre-, post-cART, or current CD4 count and VL in isolation or in combinations were comparable to that of HPV test alone. CONCLUSIONS: Our results provide a more accurate tool for managing HIV+ women by combining Cobas HPV with CD4 and VL, especially those who had an undesirable pre-cART CD4 and VL status. Our results also indicate the usefulness of CD4 and VL measurements to identify those at lower risk in the absence of HPV testing.


Asunto(s)
Carcinoma in Situ/virología , Genotipo , Infecciones por VIH/virología , Papillomaviridae/genética , Neoplasias del Cuello Uterino/virología , Carga Viral , Antirretrovirales/uso terapéutico , Células Escamosas Atípicas del Cuello del Útero/patología , Recuento de Linfocito CD4 , Carcinoma in Situ/inmunología , Carcinoma in Situ/patología , Recuento de Células , ADN Viral/análisis , Quimioterapia Combinada , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/inmunología , Humanos , Persona de Mediana Edad , Papillomaviridae/aislamiento & purificación , Valor Predictivo de las Pruebas , Medición de Riesgo , Neoplasias del Cuello Uterino/inmunología , Neoplasias del Cuello Uterino/patología
12.
Mod Pathol ; 34(2): 508-518, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-32792599

RESUMEN

Human papillomavirus (HPV)-independent vulvar squamous cell carcinoma (VSCC) is an aggressive clinical entity. Current diagnostic guidelines for premalignant lesions are ambiguous, and their molecular profile and progression events are still unclear. We selected 75 samples, from 40 patients, including 33 VSCC, 8 verrucous carcinomas (VC), 13 differentiated-type vulvar intraepithelial neoplasia (dVIN), 11 suspicious for dVIN (?dVIN), 6 differentiated exophytic vulvar intraepithelial lesions (DE-VIL), 2 vulvar acanthosis with altered differentiation (VAAD), and 2 usual-type vulvar intraepithelial neoplasia (uVIN/HSIL). Invasive and precursor lesions were matched in 29 cases. Clinical information, p16 immunohistochemistry, and mutation analysis were performed on all lesions. All dVIN, ?dVIN, DE-VIL, and VAAD were p16 negative, all uVIN/HSIL were p16 positive. In the HPV-independent group, mutations were identified in 6 genes: TP53 (n = 40), PIK3CA (n = 20), HRAS (n = 12), MET (n = 5), PTEN (n = 4), and BRAF (n = 1). TP53 mutations occurred in 73% (22/30) VSCC, 85% (11/13) dVIN, 70% (7/10) ?dVIN and no VC (0/8), DE-VIL (0/6) nor VAAD (0/2). Basal atypia was the only reliable feature of TP53 mutations. ?dVIN lesions that were non-acanthotic and atypical but obscured by inflammation, all harbored TP53 mutations. In lesions without TP53 mutations, PIK3CA (50% VC, 33% DE-VIL, 100% VAAD, 40% VSCC) and HRAS (63% VC, 33% DE-VIL, 0% VAAD, 20% VSCC) mutations were found. Mutational progression from in situ to invasive was seen (7/26, 27%) and usually involved TP53 (4/26, 15%). Cases with TP53 and PIK3CA co-mutations had the worse clinical outcomes (p < 0.001). We recommend testing for p53 in all HPV-independent lesions suspicious for dVIN, even in the presence of marked inflammation or non-acanthotic skin, particularly when close to a margin. VC, VAAD, and DE-VIL, were almost never mutated for TP53, but instead often harbored PIK3CA and HRAS mutations. In VSCC, combined TP53 and PIK3CA mutations may inform prognosis.


Asunto(s)
Carcinoma in Situ/patología , Carcinoma de Células Escamosas/patología , Fosfatidilinositol 3-Quinasa Clase I/genética , Proteína p53 Supresora de Tumor/genética , Neoplasias de la Vulva/patología , Carcinoma in Situ/genética , Carcinoma in Situ/virología , Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/virología , Femenino , Humanos , Infecciones por Papillomavirus/complicaciones , Neoplasias de la Vulva/genética , Neoplasias de la Vulva/virología
13.
Ear Nose Throat J ; 100(10_suppl): 1054S-1057S, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32579382

RESUMEN

Malignant transformation of nasal polyps is extremely rare in cases without background inverted papilloma. Human papillomavirus (HPV) is a sexually transmitted infection believed to be associated with oropharyngeal carcinoma via oro-genital sexual contact. We present a case of focal squamous cell carcinoma in situ that occurred on the surface of nasal polyps and was associated with HPV 51. The patient was successfully treated with endoscopic sinus surgery. Clinicians should be aware of the potential for hidden malignancies, and pathologic assessment of tissue specimens must be performed even in simple nasal polyp cases.


Asunto(s)
Carcinoma in Situ/virología , Carcinoma de Células Escamosas/virología , Pólipos Nasales/virología , Neoplasias Nasales/virología , Papillomaviridae , Infecciones por Papillomavirus/virología , Humanos , Masculino , Ilustración Médica , Persona de Mediana Edad , Infecciones por Papillomavirus/complicaciones
14.
BJU Int ; 127(4): 428-434, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-32870593

RESUMEN

OBJECTIVES: To investigate the prevalence of pathological disease and spectrum of human papillomavirus (HPV) types among symptomatic foreskin tissue. PATIENTS AND METHODS: Consecutively excised symptomatic foreskins from 351 men were sent for histopathological evaluation. During the surgical procedure, a fresh biopsy was taken for HPV analysis by modified general primer polymerase chain reaction. A medical questionnaire regarding medication, smoking habits, number of lifetime sexual partners, former diseases and surgery performed on penis was completed by all participants. RESULTS: The most common clinical diagnosis and cause for circumcision was phimosis, seen in 85.2%. Histopathologically inflammatory dermatological conditions were present in 87% of the men. The most common histopathological diagnosis was lichen sclerosus (LS) observed among 58.7%. Notably, penile intraepithelial neoplasia (PeIN) was present in 2% without former clinical suspicion. Overall, HPV was detected in 17.1% of the men and 28 different HPV types were found. High-risk (HR) HPV types were identified in 9.1% and HPV16 was present in 2.3%. Current smoking increased the risk of HPV (crude odds ratio [OR] 2.8, confidence interval [CI] 1.4-5.6; P = 0.005). Having >15 lifetime sexual partners increased the risk of HPV (crude OR 2.6, 95% CI 1.4-5.1; P = 0.003) and when adjusted for current smoking the OR was substantially increased (OR 6.0, 95% CI CI 2.2-16.8; P < 0001). CONCLUSIONS: Histopathological evaluation of circumcised symptomatic foreskin revealed PeIN in 2% of the men without any clinical suspicion of malignancy and that treatable dermatological conditions were present in 87%, LS being the most common. HR-HPV types were present in 9%. Due to risk of malignant development both in PeIN and in inflammatory skin diseases we recommend sending all excised foreskins from patients with symptoms for histopathological evaluation as guidance for further clinical management.


Asunto(s)
Alphapapillomavirus/aislamiento & purificación , Carcinoma in Situ/virología , Prepucio/virología , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/epidemiología , Neoplasias del Pene/virología , Adulto , Circuncisión Masculina , Estudios Transversales , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Suecia
15.
Curr Probl Cancer ; 45(3): 100687, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33309077

RESUMEN

OBJECTIVES: To investigate the incidence of vaginal intraepithelial neoplasia (VaIN) after total hysterectomy and, subsequently, optimize the follow-up strategy of patients after hysterectomy. METHODS: This retrospective study was conducted on 8581 patients with benign gynecology disease who underwent total hysterectomy in our institution between January 2006 to December 2017, including 834 patients with cervical intraepithelial neoplasia (CIN) and 7747 patients without cervical lesions before hysterectomy. All patients underwent postoperative high-risk human papilloma virus (Hr-HPV) screening and liquid-based cytology test (LCT) as confirmatory tests. Colposcopies were performed if the results of the confirmatory tests were abnormal, and biopsies were performed depending on colposcopy images. The mean follow-up time was 33.8 ± 12.1 months. The relationship among VaIN, CIN, and confirmatory test results was investigated. RESULTS: VaIN was found in 81 patients after hysterectomy (incidence rate, 0.9%). The incidence rates of VaIN in patients with and without CIN history were significantly different (7.3%, 61/834, vs 0.3%, 20/7747; P < 0.05). Compared with patients without CIN history, those with CIN history were more likely to have abnormal LCT results in the postoperative follow-up, especially low-grade squamous intraepithelial lesions or worse (P < 0.001). Patients with high-grade squamous intraepithelial lesions in the LCT have a high VaIN incidence (patients with CIN history, 57.1%; patients without CIN history, 15.1%), and the 2 patients with squamous cell carcinoma or adenocarcinoma (SCC/AC) in the LCT had CIN and VaIN or worse after hysterectomy. The Hr-HPV infection rates after the hysterectomy of patients with and without CIN history were 18.8% (157/834) and 5.4% (419/7747), respectively. The incidences morbidities of VaIN in patients with persistent Hr-HPV infection and in those with and without CIN history were 35.7% and 12.0%, respectively, and were significantly higher than those in patients with negative Hr-HPV (patients with CIN history, 0.7%; patients without CIN history, 0.1%; P = 0.002). The incidence of VaIN in patients with CIN history with HPV-16 infection after hysterectomy was as high as 50%, but in patients without CIN history, the incidences of different Hr-HPV subtypes were not significantly different (P = 0.953). CONCLUSION: Patients with CIN history were more prone to VaIN and SCC after hysterectomy than were patients without CIN history. Patients should be screened thoroughly for cervical and vaginal lesions before hysterectomy. After hysterectomy, patients with CIN history should undergo lifetime annual LCT and HPV screening.


Asunto(s)
Carcinoma in Situ/epidemiología , Infecciones por Papillomavirus/epidemiología , Displasia del Cuello del Útero/epidemiología , Displasia del Cuello del Útero/virología , Neoplasias Vaginales/epidemiología , Anciano , Carcinoma in Situ/patología , Carcinoma in Situ/virología , China/epidemiología , Femenino , Humanos , Histerectomía , Persona de Mediana Edad , Papillomaviridae , Estudios Retrospectivos , Neoplasias Vaginales/patología , Neoplasias Vaginales/virología , Displasia del Cuello del Útero/patología
16.
Nanomedicine ; 29: 102276, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32736038

RESUMEN

Herein we have stepped-up on a strategic spectroscopic modality by utilizing label free ultrasensitive surface enhanced Raman scattering (SERS) technique to generate a differential spectral fingerprint for the prediction of normal (NRML), high-grade intraepithelial lesion (HSIL) and cervical squamous cell carcinoma (CSCC) from exfoliated cell samples of cervix. Three different approaches i.e. single-cell, cell-pellet and extracted DNA from oncology clinic as confirmed by Pap test and HPV PCR were employed. Gold nanoparticles as the SERS substrate favored the increment of Raman intensity exhibited signature identity for Amide III/Nucleobases and carotenoid/glycogen respectively for establishing the empirical discrimination. Moreover, all the spectral invention was subjected to chemometrics including Support Vector Machine (SVM) which furnished an average diagnostic accuracy of 94%, 74% and 92% of the three grades. Combined SERS read-out and machine learning technique in field trial promises its potential to reduce the incidence in low resource countries.


Asunto(s)
Carcinoma in Situ/diagnóstico , Carcinoma de Células Escamosas/diagnóstico , Lesiones Precancerosas/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Anciano , Carcinoma in Situ/patología , Carcinoma in Situ/virología , Carcinoma de Células Escamosas/patología , Citodiagnóstico/métodos , Diagnóstico Diferencial , Femenino , Oro/química , Oro/uso terapéutico , Humanos , Nanopartículas del Metal/química , Nanopartículas del Metal/uso terapéutico , Persona de Mediana Edad , Infecciones por Papillomavirus/diagnóstico , Infecciones por Papillomavirus/patología , Infecciones por Papillomavirus/virología , Lesiones Precancerosas/patología , Lesiones Precancerosas/virología , Espectrometría Raman/métodos , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/virología
18.
J Pathol ; 251(4): 411-419, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32488868

RESUMEN

Penile cancer is an under-studied disease that occurs more commonly in developing countries and 30-50% of cases show high-risk human papillomavirus (HPV) infection. Therapeutic advances are slow, largely due to the absence of animal models for translational research. Here, we report the first mouse model for HPV-related penile cancer. Ten-week-old mice expressing all the HPV16 early genes under control of the cytokeratin 14 (Krt14) gene promoter and matched wild-type controls were exposed topically to dimethylbenz(a)anthracene (DMBA) or vehicle for 16 weeks. At 30 weeks of age, mice were sacrificed for histological analysis. Expression of Ki67, cytokeratin 14, and of the HPV16 oncogenes E6 and E7 was confirmed using immunohistochemistry and quantitative PCR, respectively. HPV16-transgenic mice developed intraepithelial lesions including condylomas and penile intraepithelial neoplasia (PeIN). Lesions expressed cytokeratin 14 and the HPV16 oncogenes E6 and E7 and showed deregulated cell proliferation, demonstrated by Ki67-positive supra-basal cells. HPV16-transgenic mice exposed to DMBA showed increased PeIN incidence and squamous cell carcinoma. Malignant lesions showed varied histological features closely resembling those of HPV-associated human penile cancers. Wild-type mice showed no malignant or pre-malignant lesions even when exposed to DMBA. These observations provide the first experimental evidence to support the etiological role of HPV16 in penile carcinogenesis. Importantly, this is the first mouse model to recapitulate key steps of HPV-related penile carcinogenesis and to reproduce morphological and molecular features of human penile cancer, providing a unique in vivo tool for studying its biology and advancing basic and translational research. © 2020 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.


Asunto(s)
Carcinoma in Situ/virología , Carcinoma de Células Escamosas/virología , Papillomavirus Humano 16/fisiología , Infecciones por Papillomavirus/virología , Neoplasias del Pene/virología , Animales , Carcinogénesis , Carcinoma in Situ/patología , Carcinoma de Células Escamosas/patología , Proliferación Celular , Modelos Animales de Enfermedad , Papillomavirus Humano 16/genética , Humanos , Inmunohistoquímica , Masculino , Ratones , Ratones Transgénicos , Proteínas Oncogénicas Virales/genética , Proteínas Oncogénicas Virales/metabolismo , Proteínas E7 de Papillomavirus/genética , Proteínas E7 de Papillomavirus/metabolismo , Infecciones por Papillomavirus/patología , Neoplasias del Pene/patología , Pene/patología , Pene/virología , Distribución Aleatoria , Proteínas Represoras/genética , Proteínas Represoras/metabolismo
19.
Diagn Cytopathol ; 48(11): 1021-1026, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32496006

RESUMEN

OBJECTIVES: To explore male human papillomavirus (HPV) contemporary genotyping epidemiology and correlations to peniscopy, cytology, and histopatology. METHODS: Medical records of patients who had been submitted to HPV infection screening with genotyping, peniscopy, cytology, and histopathology in a period of 2 years were reviewed. Frequency analysis and correlations between the diagnostic tools were established. RESULTS: Genotype of 1132 men resulted in 69.2% (784) positivity for HPV DNA, 78% classified as high risk of oncogenesis. Co-infections occurred in 429 (54.7%) and the most frequently identified types were HPV-6, HPV-42, and HPV-16, in 133 (17%), 94 (12%), and 86 (11%) patients, respectively. Positive/negative predictive values of peniscopy, cytology, and histopathology were 83/31%, 92/32%, and 87/33%, respectively. As a result, though significant, the correlations between genotype and non-molecular tests were poor. CONCLUSIONS: In the current contemporary representative male cohort, over two thirds are positive for human HPV DNA, 78% of high risk and with over half co-infections. Though significant, its correlation with non-molecular tests is poor and while the positive predictive values of peniscopy, cytology, and histopatology are between 83% and 92%, their negative predictive values are as low as 31% to 33%.


Asunto(s)
Alphapapillomavirus/aislamiento & purificación , Papillomavirus Humano 16/genética , Papillomavirus Humano 6/genética , Infecciones por Papillomavirus/diagnóstico , Infecciones por Papillomavirus/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Alphapapillomavirus/clasificación , Alphapapillomavirus/genética , Carcinoma in Situ/virología , Niño , Condiloma Acuminado/virología , Citodiagnóstico , ADN Viral/genética , Genotipo , Papillomavirus Humano 16/aislamiento & purificación , Papillomavirus Humano 6/aislamiento & purificación , Humanos , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Infecciones por Papillomavirus/patología , Neoplasias del Pene/virología , Pene/virología , Conducta Sexual , Adulto Joven
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