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https://www.readbyqxmd.com/read/30536665/characterization-of-head-and-neck-squamous-cell-carcinoma-arising-in-young-patients-particular-focus-on-molecular-alteration-and-tumor-immunity
#1
Hyang Joo Ryu, Eun Kyung Kim, Byoung Chul Cho, Sun Och Yoon
BACKGROUND: The purpose of this study was to comprehensively characterize head and neck squamous cell carcinoma (HNSCC) arising in young patients (<45 years old). METHODS: We performed immunohistochemistry, silver, and fluorescence in situ hybridization using samples obtained from 396 radically resected cases among 1787 HNSCCs. RESULTS: Young age HNSCCs occurred in 10.9% (194/1787) and were most common in the oral tongue (50.5%). They revealed distinctively lower frequency of p16 positivity, high c-MET expression, MET copy number gain, and lower pan-Trk expression...
December 10, 2018: Head & Neck
https://www.readbyqxmd.com/read/30468243/a-controlled-trial-of-hnscc-patient-derived-xenografts-reveals-broad-efficacy-of-pi3k%C3%AE-inhibition-in-controlling-tumor-growth
#2
Kara M Ruicci, Jalna Meens, Ren X Sun, Giananthony Rizzo, Nicole Pinto, John Yoo, Kevin Fung, Danielle MacNeil, Joe S Mymryk, John W Barrett, Paul C Boutros, Laurie Ailles, Anthony C Nichols
Head and neck squamous cell carcinomas (HNSCCs) frequently harbor alterations in the PI3K/AKT/mTOR signalling axis, particularly in the PIK3CA gene. PI3K-targeted agents have therefore gained considerable preclinical and clinical interest as emerging therapies for HNSCC. Identification of predictive biomarkers of response would advance the clinical application of PI3K-targeted drugs for patients in order to achieve maximal benefit. To date, studies of drug biomarkers have largely focused on screening cell lines, with much more limited in vivo testing, usually only as validation...
November 23, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/30455727/human-papillomavirus-hpv-and-epstein-barr-virus-ebv-in-keratinizing-versus-non-keratinizing-squamous-cell-carcinoma-of-the-oropharynx
#3
Francesco Broccolo, Giulia Ciccarese, Agostino Rossi, Luca Anselmi, Francesco Drago, Antonio Toniolo
Background: Oral and oropharyngeal squamous cell carcinomas (OSCC and OPSCC) represent the majority of head and neck squamous cell carcinomas (HNSCC). Human papillomavirus (HPV) is an important etiologic factor together with Epstein-Barr virus (EBV). Little is known on the prevalence of major herpesviruses [EBV, cytomegalovirus (CMV) and HHV-6, - 7 and - 8] in HNSCCs. Methods: Fifty-one formalin-fixed paraffin-embedded (FFPE) tissue samples taken at surgery (40 oropharyngeal, 11 oral) were analyzed for 40 HPV genotypes (20 high-risk types), EBV, CMV, HHV-6, - 7 and - 8 by quantitative PCR...
2018: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/30428646/poor-prognostic-factors-in-human-papillomavirus-positive-head-and-neck-cancer-who-might-not-be-candidates-for-de-escalation-treatment
#4
Shin Hye Yoo, Chan-Young Ock, Bhumsuk Keam, Sung Joon Park, Tae Min Kim, Jin Ho Kim, Yoon Kyung Jeon, Eun-Jae Chung, Seong Keun Kwon, J Hun Hah, Tack-Kyun Kwon, Kyeong Chun Jung, Dong-Wan Kim, Hong-Gyun Wu, Myung-Whun Sung, Dae Seog Heo
Background/Aims: Since patients with human papillomavirus (HPV)-associated head and neck squamous cell carcinoma (HNSCC) have favorable outcomes after treatment, treatment de-escalation for these patients is being actively investigated. However, not all HPV-positive HNSCCs are curable, and some patients have a poor prognosis. The purpose of this study was to identify poor prognostic factors in patients with HPV-positive HNSCC. Methods: Patients who received a diagnosis of HNSCC and tested positive for HPV from 2000 to 2015 at a single hospital site (n = 152) were included in this retrospective analysis...
November 16, 2018: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/30410671/ddb2-regulates-epithelial-to-mesenchymal-transition-emt-in-oral-head-and-neck-squamous-cell-carcinoma
#5
Prashant V Bommi, Sriram Ravindran, Pradip Raychaudhuri, Srilata Bagchi
DDB2 is a sensor of DNA damage and it plays an important role in Global Genomic Repair (GG-NER). Our previous studies show that DDB2 is involved in the regulation of metastasis in colon adenocarcinoma. Squamous Cell Carcinomas in the Oral/Head & Neck region (HNSCC) are particularly aggressive due to high incidence of recurrence and distant metastasis. In this study, we show that DDB2 expression is downregulated in advanced HNSCCs and loss of DDB2 expression coincides with reduced survival. Recent meta-analysis of gene expression data characterized the mesenchymal-type (EMT-type) as one most aggressive cancer cluster in HNSCC...
October 5, 2018: Oncotarget
https://www.readbyqxmd.com/read/30375891/pd-1-haplotype-combinations-and-susceptibility-of-patients-to-squamous-cell-carcinomas-of-head-and-neck
#6
Farshid Fathi, Zahra Faghih, Bijan Khademi, Toomaj Kayedi, Nasrollah Erfani, Abbas Gahderi
INTRODUCTION: Head and neck squamous cell carcinomas (HNSCCs) are the most common cancers of head and neck and the sixth most common malignancy worldwide. Programmed cell death 1 (PD-1) is an immune inhibitory molecule which through interaction with its ligands recruits protein phosphatase resulting in immune response inhibition. Expression of PD-1 ligands on tumor cells is considered as one of the crucial immune evasion mechanisms. This study aimed to investigate the association of PD-1 gene polymorphisms at positions PD1...
October 30, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30360033/investigating-trk-protein-expression-between-oropharyngeal-and-non-oropharyngeal-squamous-cell-carcinoma-clinical-implications-and-possible-roles-of-human-papillomavirus-infection
#7
Yoon Ah Cho, Ji Myung Chung, Hyunmi Ryu, Eun Kyung Kim, Byoung Chul Cho, Sun Och Yoon
Purpose: The relationship between head and neck squamous cell carcinoma (HNSCC) and subtypes of tropomyosin-related kinase (Trk) has not been studied in-depth. In this study, we evaluated the expression patterns of TrkA, TrkB, and panTrk and their clinicopathological significance as well as association with p16 expression and human papilloma virus (HPV) status. Materials and Methods: Total of 396 radically resected oropharyngeal (n=121) and non-oropharyngeal (n=275) HNSCCs were included...
October 24, 2018: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/30355925/the-association-and-clinical-significance-of-cdkn2a-promoter-methylation-in-head-and-neck-squamous-cell-carcinoma-a-meta-analysis
#8
Chongchang Zhou, Zhisen Shen, Dong Ye, Qun Li, Hongxia Deng, Huigao Liu, Jinyun Li
BACKGROUND/AIMS: The association between cyclin-dependent kinase inhibitor 2A (CDKN2A) hypermethylation and head and neck squamous cell carcinoma (HNSCC) risk has been investigated by a number of studies. However, these studies have not demonstrated consistent results. Moreover, the role of CDKN2A methylation in HNSCC carcinogenesis and its clinical significance remain unclear. METHODS: We performed a systematic meta-analysis based on 72 articles (including 3399 HNSCCs, 668 premalignant lesions, and 2393 normal controls) from the PubMed, Google Scholar, Web of Science, Embase, China National Knowledge Infrastructure and Wanfang databases...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/30261040/epcam-ectodomain-epex-is-a-ligand-of-egfr-that-counteracts-egf-mediated-epithelial-mesenchymal-transition-through-modulation-of-phospho-erk1-2-in-head-and-neck-cancers
#9
Min Pan, Henrik Schinke, Elke Luxenburger, Gisela Kranz, Julius Shakhtour, Darko Libl, Yuanchi Huang, Aljaž Gaber, Miha Pavšič, Brigita Lenarčič, Julia Kitz, Mark Jakob, Sabina Schwenk-Zieger, Martin Canis, Julia Hess, Kristian Unger, Philipp Baumeister, Olivier Gires
Head and neck squamous cell carcinomas (HNSCCs) are characterized by outstanding molecular heterogeneity that results in severe therapy resistance and poor clinical outcome. Inter- and intratumoral heterogeneity in epithelial-mesenchymal transition (EMT) was recently revealed as a major parameter of poor clinical outcome. Here, we addressed the expression and function of the therapeutic target epidermal growth factor receptor (EGFR) and of the major determinant of epithelial differentiation epithelial cell adhesion molecule (EpCAM) in clinical samples and in vitro models of HNSCCs...
September 2018: PLoS Biology
https://www.readbyqxmd.com/read/30243648/differential-anticancer-activities-of-arsenic-trioxide-on-head-and-neck-cancer-cells-with-different-human-papillomavirus-status
#10
Shanmei Du, Kui Liu, Peng Gao, Zhongyou Li, Jie Zheng
AIMS: Approximately 20% of head and neck squamous cell carcinomas (HNSCCs) are caused by human papillomavirus (HPV) infection. The effect of arsenic trioxide (ATO) on HPV oncogene expression of HNSCC cells remains unknown. In this study, we investigated the anti-cancer activity and possible molecular pathways of ATO on the six HNSCC cell lines (three HPV-positive and three HPV-negative). METHODS: The effects of ATO on the cell proliferation, apoptosis, cell cycle of HNSCC cells were analyzed using CCK-8 assay, colony formation and flow cytometry...
November 1, 2018: Life Sciences
https://www.readbyqxmd.com/read/30229863/exosomes-in-hnscc-plasma-as-surrogate-markers-of-tumour-progression-and-immune-competence
#11
M-N Theodoraki, T K Hoffmann, E K Jackson, T L Whiteside
Exosomes in plasma of head and neck squamous cell carcinoma (HNSCC) patients comprise subsets of vesicles derived from various cells. Recently, we separated CD3(+) from CD3(-) exosomes by immune capture. CD3(-) exosomes were largely tumour-derived (CD44v3+ ). Both subsets carried immunosuppressive proteins and inhibited functions of human immune cells. The role of these subsets in immune cell reprogramming by the tumour was investigated by focusing on the adenosine pathway components. Spontaneous adenosine production by CD3(+) or CD3(-) exosomes was measured by mass spectrometry, as was the production of adenosine by CD4+ CD39+ regulatory T cells (Treg ) co-incubated with these exosomes...
October 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/30224542/establishment-and-genetic-landscape-of-precancer-cell-model-systems-from-the-head-and-neck-mucosal-lining
#12
D Vicky de Boer, Arjen Brink, Marijke Buijze, Marijke Stigter-van Walsum, Keith D Hunter, Bauke Ylstra, Elisabeth Bloemena, C René Leemans, Ruud H Brakenhoff
Head and neck squamous cell carcinomas (HNSCCs) develop in fields of genetically altered cells. These fields are often dysplastic and a subset can be recognized as (erythro)leukoplakia, but most are macroscopically invisible. There is a lack of adequate treatment options to eradicate these fields, while they underlie the development of primary tumors as well as part of the local relapses. Unfortunately, there are almost no representative cellular models available to identify suitable treatment options. To this end, clinical biopsy specimens (n=98) were cultured from normal appearing mucosa of the surgical margins of patients with primary HNSCCs (n=32) to generate precancer cell culture models...
September 17, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/30221531/epidemiology-of-head-and-neck-cancers-in-northern-iran-a-10-year-trend-study-from-golestan-province
#13
Mohammad-Hossein Taziki, Abdolreza Fazel, Fatemeh Salamat, Seyed-Mehdi Sedaghat, Mohammad Ashaari, Hossein Poustchi, Ramin Shakeri, Reza Hoseinpoor, Susan Hasanpour-Heidari, Gholamreza Roshandel
BACKGROUND: Golestan province, in Northern Iran, is a high-risk area for esophageal squamous cell carcinoma (SCC). SCC is also the most common histological type of cancers of the head and neck region including cancers of oral cavity, oropharynx, hypopharynx and larynx. We aimed to present the incidence rate of head and neck SCC (HNSCC) in Golestan province during 2004 and 2013. METHODS: Data on HNSCC were obtained from Golestan population-based cancer registry (GPCR)...
September 1, 2018: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/30220319/three-distinct-genomic-subtypes-of-head-and-neck-squamous-cell-carcinoma-associated-with-clinical-outcomes
#14
Dong Jin Lee, Young-Gyu Eun, Young Soo Rho, Eui Hyun Kim, Sun Young Yim, Sang Hee Kang, Bo Hwa Sohn, Gee Hwan Kwon, Ju-Seog Lee
OBJECTIVES: Heterogeneity of head and neck squamous cell carcinomas (HNSCCs) results in unpredictable outcomes for patients with similar stages of cancer. Beyond the role of human papilloma virus (HPV), no validated molecular marker of HNSCCs has been established. Thus, clinically relevant molecular subtypes are needed to optimize HNSCC therapy. The purpose of this study was to identify subtypes of HNSCC that have distinct biological characteristics associated with clinical outcomes and to characterize genomic alterations that best reflect the biological and clinical characteristics of each subtype...
October 2018: Oral Oncology
https://www.readbyqxmd.com/read/30157864/differentially-expressed-proteins-in-positive-versus-negative-hnscc-lymph-nodes
#15
Alessandra Vidotto, Giovana M Polachini, Marina de Paula-Silva, Sonia M Oliani, Tiago Henrique, Rossana V M López, Patrícia M Cury, Fabio D Nunes, José F Góis-Filho, Marcos B de Carvalho, Andréia M Leopoldino, Eloiza H Tajara
BACKGROUND: Lymph node metastasis is one of the most important prognostic factors in head and neck squamous cell carcinomas (HNSCCs) and critical for delineating their treatment. However, clinical and histological criteria for the diagnosis of nodal status remain limited. In the present study, we aimed to characterize the proteomic profile of lymph node metastasis from HNSCC patients. METHODS: In the present study, we used one- and two-dimensional electrophoresis and mass spectrometry analysis to characterize the proteomic profile of lymph node metastasis from HNSCC...
August 29, 2018: BMC Medical Genomics
https://www.readbyqxmd.com/read/30150513/a-review-of-hpv-related-head-and-neck-cancer
#16
REVIEW
Kazuhiro Kobayashi, Kenji Hisamatsu, Natsuko Suzui, Akira Hara, Hiroyuki Tomita, Tatsuhiko Miyazaki
Head and neck squamous cell carcinomas (HNSCCs) arise in the mucosal lining of the upper aerodigestive tract. Tobacco and alcohol use have been reported to be associated with HNSCC. Infection with high-risk human papillomaviruses (HPVs) has recently been implicated in the pathogenesis of HNSCCs. It is now widely accepted that high-risk HPV is a cause of almost all cervical cancers as well as some forms of HNSCCs. HPV-related HNSCCs are increasing. HPV-related HNSCCs and HPV-unrelated HNSCCs differ with respect to the molecular mechanisms underlying their oncogenic processes...
August 27, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/30142511/annexin-a1-regulates-egfr-activity-and-alters-egfr-containing-tumour-derived-exosomes-in-head-and-neck-cancers
#17
N Raulf, P Lucarelli, S Thavaraj, S Brown, J M Vicencio, T Sauter, M Tavassoli
BACKGROUND: Head and neck squamous cell carcinoma (HNSCC) is the 6th most common cancer with approximately half a million cases diagnosed each year worldwide. HNSCC has a poor survival rate which has not improved for over 30 years. The molecular pathogenesis of HNSCCs remains largely unresolved; there is high prevalence of p53 mutations and EGFR overexpression; however, the contribution of these molecular changes to disease development and/or progression remains unknown. We have recently identified microRNA miR-196a to be highly overexpressed in HNSCC with poor prognosis...
October 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/30098776/frequent-hpv-independent-p16-ink4a-overexpression-in-head-and-neck-cancer
#18
Matt Lechner, Ankur R Chakravarthy, Vonn Walter, Liam Masterson, Andrew Feber, Amrita Jay, Paul M Weinberger, Richard A McIndoe, Cillian T Forde, Kerry Chester, Nicholas Kalavrezos, Paul O'Flynn, Martin Forster, Terry M Jones, Francis M Vaz, D Neil Hayes, Tim R Fenton
OBJECTIVES: p16INK4A (p16) is the most widely used clinical biomarker for Human Papillomavirus (HPV) in head and neck squamous cell cancer (HNSCC). HPV is a favourable prognostic marker in HNSCC and is used for patient stratification. While p16 is a relatively accurate marker for HPV within the oropharynx, recent reports suggest it may be unsuitable for use in other HNSCC subsites, where a smaller proportion of tumors are HPV-driven. MATERIALS AND METHODS: We integrated reverse phase protein array (RPPA) data for p16 with HPV status based on detection of viral transcripts by RNA-seq in a set of 210 HNSCCs profiled by The Cancer Genome Atlas project...
August 2018: Oral Oncology
https://www.readbyqxmd.com/read/30041465/differential-effect-of-smoking-on-gene-expression-in-head-and-neck-cancer-patients
#19
Alexandra Iulia Irimie, Cornelia Braicu, Roxana Cojocneanu, Lorand Magdo, Anca Onaciu, Cristina Ciocan, Nikolay Mehterov, Diana Dudea, Smaranda Buduru, Ioana Berindan-Neagoe
Smoking is a well-known behavior that has an important negative impact on human health, and is considered to be a significant factor related to the development and progression of head and neck squamous cell carcinomas (HNSCCs). Use of high-dimensional datasets to discern novel HNSCC driver genes related to smoking represents an important challenge. The Cancer Genome Atlas (TCGA) analysis was performed in three co-existing groups of HNSCC in order to assess whether gene expression landscape is affected by tobacco smoking, having quit, or non-smoking status...
July 23, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/30022281/autophagy-blockade-sensitizes-human-head-and-neck-squamous-cell-carcinoma-towards-cyt997-through-enhancing-excessively-high-reactive-oxygen-species-induced-apoptosis
#20
Lixia Gao, Xiangdong Zhao, Liwei Lang, Chloe Shay, W Andrew Yeudall, Yong Teng
The functional relationship between apoptosis and autophagy in anticancer drug treatment is extremely complex, and the molecular machinery is obscure. This study aims to investigate the efficacy of CYT997, a novel microtubule-disrupting agent, in head and neck squamous cell carcinomas (HNSCCs) and complete the autophagy-apoptosis puzzle involved in drug action. We report here that CYT997 exhibits anticancer activity by triggering oxidative stress-associated apoptosis in HNSCC cells. Interestingly, upregulation of autophagy by mTOR-dependent pathways appears to have a cytoprotective role in preventing apoptosis by inhibiting CYT997-induced excessively high levels of reactive oxygen species (ROS)...
September 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
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