Genomic Study Reveals Role of Human Papillomavirus in Cervical Cancer and Identifies Novel Therapeutic Targets for the Disease

Findings may help physicians tailor cervical cancer therapies to specific gene mutations and improve the accuracy of diagnostic screening tests for this disease New scientific knowledge about the role of human papillomavirus (HPV) in the growth of cervical cancer is creating excitement within the medical community. Among other things, these findings could encourage more widespread […]
Source: Dark Daily - Category: Laboratory Medicine Authors: Tags: Digital Pathology Instruments & Equipment Laboratory Management and Operations Laboratory News Laboratory Operations Laboratory Pathology Broad Institute cervical cancer cervical squamous cell carcinoma clinical laboratory cytopatholog Source Type: news

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This study evaluated the integration and methlyation of human papillomavirus type 16 (HPV16) in head and neck squamous cell carcinoma (HNSCC) and its oral precursor, high-grade oral epithelial dysplasia (hgOED). Archival samples of HPV16-positive hgOED (N = 19) and HNSCC (N = 15) were evaluated, along with three HNSCC (UMSCC-1, -47 and -104) and two cervical cancer (SiHa and CaSki) cell lines. HgOED cases were stratified into three groups with increasing degrees of cytologic changes (mitosis, karyorrhexis and apoptosis). The viral load was higher and the E2/E6 ratio lower (indicating a greater tendency toward viral integra...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
ConclusionsA significant decrease in the incidence of cervical cancer among young females after the introduction of human papillomavirus vaccine may indicate early effects of human papillomavirus vaccination.
Source: American Journal of Preventive Medicine - Category: International Medicine & Public Health Source Type: research
Anal intraepithelial neoplasia (AIN) and anal squamous cell carcinoma (ASCC) are on the rise in the United States, especially among men who have sex with men, HIV-positive or other immunocompromised patients, and women with a history of cervical, vaginal, or vulvar cancer. Strong evidence supports the human papillomavirus as the causative factor in anal dysplasia; reducing the risk of HPV infection can reduce rates of ASCC. High-risk patients should be screened for AIN, but no universal screening guidelines exist, and more studies are needed to develop a national protocol for screening and management of patients with AIN.
Source: Journal of the American Academy of Physician Assistants - Category: Primary Care Tags: Review Article Source Type: research
Conclusions: HPV-16/-18/-58/-52 was the most commonly identified types in Zhejiang Province, which contributed for vaccine development. Furthermore, HPV-16 was preferred to SCC, while HPV-58 seemed to be more likely in non-SCC, DSI-positive, LVSI-positive, and LNM-positive patients, and HPV-52 was more common in surgery patients who were beyond 35 years old, as well as in DSI-positive patients.
Source: Journal of Cancer Research and Therapeutics - Category: Cancer & Oncology Authors: Source Type: research
Abstract Punch biopsy is important in the diagnosis of cervical cancer. However, it may fail to detect early cervical cancers. A retrospective study was performed in the largest academic women's hospital in China to demonstrate cervical cancer that colposcopy-directed biopsy failed to detect. Methods. Patients who were diagnosed with high-grade squamous intraepithelial lesion (HSIL), adenocarcinoma in situ (AIS), and persistent low-grade squamous intraepithelial lesion (LSIL) via colposcopy-directed biopsy and had further undergone loop electrosurgical excision procedure (LEEP) conization were included. These proc...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
CONCLUSIONS: - The incidence of HPV-OPC is rising globally and in the United States, but rates of HPV-positivity vary with the anatomic site(s) and the population studied, as well as the method of detecting HPV infection. These tumors are more common in men. In contrast to HPV- OPC, the rates of smoking and alcohol abuse are lower. The HPV 16 subtype is predominant, and immunohistochemistry staining for p16 and in situ hybridization are the most widely used methods clinically to detect transcriptionally active HPV. Moreover, HPV-OPC has a unique tumor phenotype with predominantly nonkeratinizing morphology and a variety of...
Source: Archives of Pathology and Laboratory Medicine - Category: Laboratory Medicine Authors: Tags: Arch Pathol Lab Med Source Type: research
Conclusions A significant decrease in the incidence of cervical cancer among young females after the introduction of human papillomavirus vaccine may indicate early effects of human papillomavirus vaccination.
Source: American Journal of Preventive Medicine - Category: International Medicine & Public Health Source Type: research
To address the unmet need for effective biomarker-driven targeted therapy for human papillomavirus (HPV)-associated head and neck squamous cell carcinoma (HNSCC) and cervical cancer, we conducted a high-throughput drug screen using 1122 compounds in 13 HPV-positive and 11 matched HPV-negative cell lines. The most effective drug classes were inhibitors of polo-like kinase, proteasomes, histone deacetylase, and Aurora kinases. Treatment with a pan-Aurora inhibitor, danusertib, led to G2M arrest and apoptosis in vitro.
Source: Cancer Letters - Category: Cancer & Oncology Authors: Tags: Original Articles Source Type: research
CONCLUSIONS: Results of this study indicate that the association between HPV and OSCC may be overestimated. Hence, multicentric studies covering diverse geographical and socioeconomic groups are needed to delineate the profile of HPV infectivity and OSCC in the Indian subcontinent.
Source: Indian Journal of Cancer - Category: Cancer & Oncology Authors: Source Type: research
Human papillomavirus (HPV) is the most common sexually transmitted infection in North America [1,2]. The oncogenic potential of HPV was first described in cervical cancer [3]. More recently, the link between oropharyngeal squamous cell carcinoma (OPSCC) and oral HPV infection was established [4,5]. An estimated 72% of OPSCC cases are associated with HPV in North America [6]. The incidence of OPSCC has been rising rapidly, and has overtaken cervical cancer to become the most common HPV-related cancer in the United States [6,7].
Source: Oral Oncology - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
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