The article describes methods for the human papillomavirus (HPV) detection in tumor and adjacent (morphologically intact) tissues of patients with laryngeal squamous cell carcinoma (LSSC) in terms of viral pathogenesis. Comparative evaluation of the principles and techniques for HPV detection was performed. Advantages and disadvantages of the HPV detection methods are described. Approaches for DNA and HPV oncoproteins E6-E7 identification are substantiated. The results of our research into the qualitative and quantitative detection of HPV in the tumor and adjacent tissues of patients with Lssc are described. The research was conducted using commercial test systems Amplisens HPV HR screen-titre-FL and Amplisens HPV HR genotype-FL. Based on these results we developed the algorithm of HPV detection in samples of tumor tissue of patients with Lssc. The need for typing HPV-positive tissue samples with low concentration of HPV DNA was discussed.
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http://dx.doi.org/10.18821/0507-4088-2016-61-6-275-279 | DOI Listing |
Sci Rep
January 2025
Department of Laboratory Medicine, Clinical Pathology and Genetics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Vulvar cancer is a rare gynaecological disease that can be caused by infection with human papillomavirus (HPV). The mutational frequencies and landscape for HPV-associated and HPV-independent vulvar tumor development are supposedly two distinctly different pathways and more detailed knowledge on target biological mechanisms for individualized future treatments is needed. The study included formalin-fixed paraffin-embedded (FFPE) samples from 32 cancer patients (16 HPV-negative and 16 HPV-associated), treated in Örebro, Sweden from 1988 to 2008.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT, 84322, USA; Department of Chemistry, University of Louisiana at Lafayette, 300 East St. Mary Blvd, Lafayette, LA, 70504, USA. Electronic address:
A rapid and accurate biosensor for detecting disease biomarkers at point-of-care is essential for early disease diagnosis and preventing pandemics. CRISPR-Cas12a is a promising recognition element for DNA biosensors due to its programmability, specificity, and deoxyribonuclease activity initiated in the presence of a biomarker. The current electrochemical CRISPR-Cas12a-based biosensors utilize the single-stranded DNA (ssDNA) self-assembled on an electrode surface and covalently modified with the redox indicator, usually methylene blue (MB).
View Article and Find Full Text PDFGynecol Oncol
January 2025
Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, UK. Electronic address:
Objective: Vulvar squamous cell carcinoma (VSCC) can be either HPV-dependent (HPVd) or HPV-independent (HPVi). HPVd VSCC typically occurs in younger women, has a more favorable prognosis, and develops from high-grade squamous intraepithelial lesions (HSIL). HPVi VSCC predominantly affects older women and arises within areas of chronic inflammation, particularly lichen sclerosis (LS).
View Article and Find Full Text PDFPLoS One
January 2025
Kirby Institute, University of New South Wales, Sydney, NSW, Australia.
Background: Risk of anal cancer is high in certain populations and screening involves collection of anal swabs for HPV DNA and/or cytology testing. However, barriers exist, such as the need for an intimate examination, and stigma around HIV status, sexual orientation, and sexual practices. Self-collected anal swabs (SCA) are a proposed alternative to clinician-collected swabs (CCA) to overcome these barriers.
View Article and Find Full Text PDFJ Transl Med
January 2025
Department of General Surgery of Otorhinolaryngology Head and Neck, The Sixth Affiliated Hospital, Sun Yat-Sen University, No.26, Erheng Road, Yuancun, Tianhe District, Guangzhou, 510655, China.
Purpose: Tumor-associated macrophages (TAMs) are pivotal immune cells within the tumor microenvironment (TME), exhibiting dual roles across various cancer types. Depending on the context, TAMs can either suppress tumor progression and weaken drug sensitivity or facilitate tumor growth and drive therapeutic resistance. This study explores whether targeting TAMs can suppress the progression of head and neck squamous cell carcinoma (HNSCC) and improve the efficacy of chemotherapy.
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