Characterization and radiosensitivity of HPV-related oropharyngeal squamous cell carcinoma patient-derived xenografts.

Conclusion: PDX from OPSCC preserves important molecular characteristics of the human primary tumor. Radiosensitivity were in accordance with clinically observed treatment response. The PDX model is a clinically relevant surrogate model of head and neck cancer. Perspectives include increased understanding of disease biology, which could lead to development of novel treatments and biomarkers. PMID: 31510843 [PubMed - as supplied by publisher]
Source: Acta Oncologica - Category: Cancer & Oncology Authors: Tags: Acta Oncol Source Type: research

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n Human papillomavirus (HPV) infection is the cause of a growing percentage of head and neck cancers (HNC); primarily, a subset of oral squamous cell carcinoma, oropharyngeal squamous cell carcinoma, and laryngeal squamous cell carcinoma. The majority of HPV-associated head and neck cancers (HPV + HNC) are caused by HPV16; additionally, co-factors such as smoking and immunosuppression contribute to the progression of HPV + HNC by interfering with tumor suppressor miRNA and impairing mediators of the immune system. This review summarizes current studies on HPV + HNC, ranging from potential modes of oral transmission of ...
Source: Viruses - Category: Virology Authors: Tags: Review Source Type: research
Oropharynx squamous cell carcinoma (OPSCC) has become the predominant subsite for head and neck mucosal cancers (HNC) due to the rise of human papillomavirus (HPV) related disease. Previous studies have sugges...
Source: Journal of Otolaryngology - Head and Neck Surgery - Category: ENT & OMF Authors: Tags: Original research article Source Type: research
This article focuses on the epidemiology, transmission, risk factors, and clinical presentation of HPV-associated oropharyngeal SCC, and provides an update on HPV vaccination in the context of the new head and neck cancer epidemic.
Source: Journal of the American Academy of Physician Assistants - Category: Primary Care Tags: CME: Oncology Source Type: research
In this issue of JAMA Otolaryngology –Head&Neck Surgery, Masroor at al explore the outcomes associated with adherence to the current National Comprehensive Cancer Network (NCCN) posttreatment surveillance recommendations for human papillomavirus –associated oropharyngeal squamous cell carcinoma (HPV-associated OPSCC). Recognition of the favorable prognosis of HPV-associated OPSCC has led to the issue of whether the current NCCN-guided surveillance recommendations are appropriate for survivors of HPV-associated OPSCC. The goals of a regula r surveillance schedule are to identify cancer recurrence and sequela...
Source: JAMA Otolaryngology - Head and Neck Surgery - Category: ENT & OMF Source Type: research
In conclusion, HPV-DNA prevalence was significantly lower in our HNSCC patients than worldwide 32–36% estimates (p ≤ 0.001). Although infrequent, oropharyngeal cancer increased over years and showed 21% HPV-DNA positivity, which is close to the worldwide 36–46% estimates (p = 0.16). Besides age, smoking, tumor stage, and treatment, HPV/p16 status was an important determinant of patients’ survival. The HPV and/or p16 positivity patients had a better OS than HPV/p16 double-negative patients (p = 0.05). Thus, HPV/p16 status helps improve prognosis by distinguishing between the more favorab...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
Authors: Boguñá N, Capdevila L, Jané-Salas E Abstract Over the last few decades, the human papillomavirus (HPV) infection has emerged as a new epidemic and become a health issue due to its involvement in several cancers affecting the cervix, the anogenital region and the oropharynx. In this review, we aim to understand and explain the distinctive features of HPV-related oropharyngeal squamous cell carcinoma based on its epidemiological data, risk factors, specific topography, HPV subtypes most frequently involved, HPV-status diagnosis, clinical behaviour, prognosis, treatment, and preventive me...
Source: Medicina Clinica - Category: General Medicine Tags: Med Clin (Barc) Source Type: research
Authors: Aboagye E, Agyemang-Yeboah F, Duduyemi BM, Obirikorang C Abstract Fewer studies have been done over the years to establish the association of human papillomavirus (HPV) with head and neck squamous cell carcinoma (HNSSC) within the subregions of sub-Saharan Africa, and thus this study was designed to investigate the presence of HPV in HNSCC at a tertiary hospital in Ghana, providing additional evidence on the need to explore similar studies in other subregions. A retrospective cross-sectional study was employed to investigate the presence of the DNA of HPV genotypes in HNSCC archived tissue. A total of 100 ...
Source: The Scientific World Journal - Category: Science Tags: ScientificWorldJournal Source Type: research
Santosh K. Ghosh1*, Thomas S. McCormick1,2 and Aaron Weinberg1* 1Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States 2Dermatology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States Human beta-defensins (hBDs, −1, 2, 3) are a family of epithelial cell derived antimicrobial peptides (AMPs) that protect mucosal membranes from microbial challenges. In addition to their antimicrobial activities, they possess other functions; e.g., cell activation, proliferation, regulation of cytokine/chemokine production, migration, diffe...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
The objective of this review article is to discuss the current role of surgery as the primary treatment modality in patients with head and neck squamous cell carcinoma (HNSCC). Recent findings HNSCC represents one of the cancer locations where the primary treatment modality is the most under discussion. Indeed, the respective roles of primary surgical resection followed, as necessary, by adjuvant radiotherapy or definitive chemoradiotherapy remain controversial. The results of organ preservation trials and the drastic rise in the incidence of human papillomavirus-induced oropharyngeal tumors, which are known to be highl...
Source: Current Opinion in Oncology - Category: Cancer & Oncology Tags: HEAD AND NECK: Edited by Joël Guigay Source Type: research
This retrospective cohort study assesses the performance of the traditional pathologic risk stratification system for surgically resected human papillomavirus –associated oropharyngeal squamous cell carcinoma and proposes an alternate composite risk stratification system.
Source: JAMA Otolaryngology - Head and Neck Surgery - Category: ENT & OMF Source Type: research
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