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https://www.readbyqxmd.com/read/29775108/high-trna-transferase-nsun2-gene-expression-is-associated-with-poor-prognosis-in-head-and-neck-squamous-carcinoma
#1
Lingeng Lu, Gongjian Zhu, Hongmei Zeng, Qian Xu, Klaus Holzmann
NSUN2 is a tRNA methyltransferase and plays an important role in cell development via modifying RNA methylation. We aimed to evaluate the expression of NSUN2 and its prognostic value in HNSCC. Random-effects model of meta-analysis shows 1.99-folds (95% CI: 1.89-2.09) upregulation of NSUN2 expression in HNSCC versus normal tissues. Patients with high NSUN2 levels had approximately 22 months shorter overall survival, and had a higher mortality risk than those with low one (p-trend = 0.020). In conclusion, NSUN2 is a potential independent prognostic marker and may be a potential therapeutic target in HNSCC...
April 21, 2018: Cancer Investigation
https://www.readbyqxmd.com/read/29775010/-molecular-mechanisms-of-chemoresistance-in-head-and-neck-squamous-cell-carcinoma
#2
REVIEW
Y X Zhao, Z F Sun
Head and neck squamous cell carcinoma (HNSCC) is an aggressive neoplasm with the properties of local recurrence and distant metastasis. Currently, cisplatin-based chemotherapy or concurrent radiochemotherapy is still the first choice or the treatment of advanced HNSCC. However, chemoresistance greatly limited the effectiveness of chemotherapy. Therefore, illustrating the mechanisms of chemoresistance is very important for the treatment of HNSCC. In this article, we summarize the molecular mechanisms of chemoresitance in HNSCC from the perspective of drug efflux, apoptosis, DNA damage and repair, epithelial mesenchymal transition and autophagy...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774993/-preliminary-study-on-the-expression-of-egfrv%C3%A2-and-cxcr4-in-head-and-neck-squamous-cell-carcinoma
#3
H D Zhang, S C Gong, Y Q Liu, S B He, Q X Zhang, M Y Si, Z K Yu
Objective: The aim of this study is to detect the expression of EGFRvⅢ and CXCR4 in HNSCC and to explore its possible mechanism. Method: We selected 60 cases of HNSCC from May 2013 to November 2016 in our hospital for surgical treatment, including 44 cases of laryngeal squamous cell carcinoma, 14 cases of hypopharyngeal squamous cell carcinoma, and 2 cases of nasal squamous cell carcinoma. pTNM staging according to AJCC 2010, Ⅲ stage 17 cases, Ⅳa stage 40 cases, and Ⅳb stage 3 cases; according to tumor differentiation degree: 13 cases of high differentiation, moderately differentiation in 31 cases, and 16 cases of low differentiated; primary tumor, positive lymph node metastasis as the experimental group, and 10 cases of adjacent tissues are taken as control (control group)...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774104/use-of-baseline-18f-fdg-pet-scan-to-identify-initial-sub-volumes-with-local-failure-after-concomitant-radio-chemotherapy-in-head-and-neck-cancer
#4
Floriane Legot, Florent Tixier, Minea Hadzic, Thomas Pinto-Leite, Christelle Gallais, Rémy Perdrisot, Xavier Dufour, Catherine Cheze-Le-Rest
Introduction: Head and neck squamous cell carcinoma (HNSCC) treated by radio-chemotherapy have a significant local recurrence rate. It has been previously suggested that 18F-FDG PET could identify the high uptake areas that can be potential targets for dose boosting. The purpose of this study was to compare the location of initial hypermetabolic regions on baseline scans with the metabolic relapse sites after radio-chemotherapy in HNSCC. Results: The initial functional tumor volume was significantly higher for patients with proven local recurrence or residual disease (23...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29772524/high-incidence-of-braf-v600-mutation-in-indian-patients-with-head-and-neck-cancer
#5
Ashna Gauthaman, Anbalagan Moorthy
In cancer cells,  BRAF  is frequently mutated at codon 600 (V600 ) leading to the replacement of valine amino acid with other amino acids. The current study was performed to assess the prevalence of  BRAF V600  mutation in Indian patients with head and neck squamous cell carcinoma (HNSCC). Among the patients, 27% were homozygous, and 71% were heterozygous for the mutation and only 2% showed a wild genotype. Since identification of  BRAF V600  mutation in cancer patients is used for selection of the therapeutic agents, this study shows that all Indian patients with HNSCCmust be screened for this mutation...
June 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/29771197/emerging-insights-into-wnt-%C3%AE-catenin-signaling-in-head-and-neck-cancer
#6
K A Alamoud, M A Kukuruzinska
Head and neck cancer presents primarily as head and neck squamous cell carcinoma (HNSCC), a debilitating malignancy fraught with high morbidity, poor survival rates, and limited treatment options. Mounting evidence indicates that the Wnt/β-catenin signaling pathway plays important roles in the pathobiology of HNSCC. Wnt/β-catenin signaling affects multiple cellular processes that endow cancer cells with the ability to maintain and expand immature stem-like phenotypes, proliferate, extend survival, and acquire aggressive characteristics by adopting mesenchymal traits...
June 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29769207/mitigating-sox2-potentiated-immune-escape-of-head-and-neck-squamous-cell-carcinoma-with-a-sting-inducing-nanosatellite-vaccine
#7
Yee Sun Tan, Kanokwan Sansanaphongpricha, Yuying Xie, Christopher R Donnelly, Xiaobo Luo, Blake R Heath, Xinyi Zhao, Emily L Bellile, Hongxiang Hu, Hongwei Chen, Peter J Polverini, Qianming Chen, Simon Young, Thomas E Carey, Jacques E Nör, Robert L Ferris, Gregory Wolf, Duxin Sun, Yu L Lei
PURPOSE: The response rates of Head and Neck Squamous Cell Carcinoma (HNSCC) to checkpoint blockade are below 20%. We aim to develop a mechanism-based vaccine to prevent HNSCC immune escape. EXPERIMENTAL DESIGN: We performed RNA-Seq of sensitive and resistant HNSCC cells to discover central pathways promoting resistance to immune killing. Using biochemistry, animal models, HNSCC microarray and immune cell deconvolution, we assessed the role of SOX2 in inhibiting STING-type I interferon (IFN-I) signaling-mediated anti-tumor immunity...
May 16, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29769197/cancer-associated-fibroblasts-drive-glycolysis-in-a-targetable-signaling-loop-implicated-in-head-and-neck-squamous-cell-carcinoma-progression
#8
Dhruv Kumar, Jacob New, Vikalp Vishwakarma, Radhika Joshi, Jonathan Enders, Fangchen Lin, Sumana Dasari, Wade R Gutierrez, George Leef, Sivapriya Ponnurangam, Hemantkumar Chavan, Lydia Ganaden, Mackenzie M Thornton, Hongying Dai, Ossama Tawfik, Jeffrey Straub, Yelizaveta Shnayder, Kiran Kakarala, Terance Ted Tsue, Douglas A Girod, Bennett Van Houten, Shrikant Anant, Partha Krishnamurthy, Sufi Mary Thomas
Despite aggressive therapies, head and neck squamous cell carcinoma (HNSCC) is associated with a less than 50% 5-year survival rate. Late stage HNSCC frequently consists of up to 80% cancer-associated fibroblasts (CAF). We previously reported that CAF-secreted hepatocyte growth factor (HGF) facilitates HNSCC progression, however very little is known about the role of CAFs in HNSCC metabolism. Here we demonstrate that CAF-secreted HGF increases extracellular lactate levels in HNSCC via upregulation of glycolysis...
May 16, 2018: Cancer Research
https://www.readbyqxmd.com/read/29765520/histogram-analysis-parameters-of-dynamic-contrast-enhanced-magnetic-resonance-imaging-can-predict-histopathological-findings-including-proliferation-potential-cellularity-and-nucleic-areas-in-head-and-neck-squamous-cell-carcinoma
#9
Alexey Surov, Hans Jonas Meyer, Leonard Leifels, Anne-Kathrin Höhn, Cindy Richter, Karsten Winter
Our purpose was to analyze possible associations between histogram analysis parameters of dynamic contrast-enhanced magnetic resonance imaging DCE MRI and histopathological findings like proliferation index, cell count and nucleic areas in head and neck squamous cell carcinoma (HNSCC). 30 patients (mean age 57.0 years) with primary HNSCC were included in the study. In every case, histogram analysis parameters of Ktrans , Ve , and Kep were estimated using a mathlab based software. Tumor proliferation index, cell count, and nucleic areas were estimated on Ki 67 antigen stained specimens...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29764025/-research-progress-in-pathogenesis-treatment-and-prognosis-of-hpv-positive-head-and-neck-squamous-cell-carcinoma
#10
C Y Shui, C Li, W Liu, Y C Cai, J Jiang, R H Sun, Y Q Zhou, G Qin
Head and neck squamous cell carcinoma (HNSCC) is the sixth common malignant tumors of whole body with a high incidence, which accounts for 90% of the head and neck malignant tumors. Previous studies have shown the risk factors, such as tobacco and alcohol, are related to the occurrence and development of HNSCC. However, recent studies have shown that the non-tobacco and non-alcohol related HNSCC increased year by year. At the same time, more and more studies have shown that HNSCC is related to the infection with human papilloma virus (HPV), and the occurrence and development of HPV-positive HNSCC has own characteristics in epidemiology, pathogenesis, treatment and prognosis...
May 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29763978/circulating-human-papillomavirus-dna-as-a-surveillance-tool-in-head-and-neck-squamous-cell-carcinoma-a-systematic-review-and-meta-analysis
#11
Kristina Kvist Jensen, Christian Grønhøj, David H Jensen, Christian von Buchwald
BACKGROUND: The incidence of human papillomavirus-induced (HPV+) head and neck squamous cell carcinoma (HNSCC) i.e. especially oropharyngeal cancers (OPSCC) is increasing and a significant proportion of patients encounter disease progression. A simple and sensitive test to identify patients with progression is an unmet need. OBJECTIVE OF REVIEW: To systematically review the literature and carry out a meta-analysis of studies, investigated circulating HPV-DNA as a biomarker for disease progression in patients with HNSCC...
May 15, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29761938/lactoferricin-b-reverses-cisplatin-resistance-in-head-and-neck-squamous-cell-carcinoma-cells-through-targeting-pd-l1
#12
Pei Zhang, Jinzhong Liu, Wenlu Li, Shanshan Li, Xinguang Han
Head and neck squamous cell carcinoma (HNSCC) ranks among the top most common cancers with a poor prognosis. The mechanism of chemoresistance is still not well known. This study is to investigate the programmed death-ligand 1 (PD-L1) expression in HNSCC, and test the effect of lactoferricin B (LfcinB) on chemoresistance and its mechanism. We analyzed 510 HNSCC patients in TCGA database and investigated how CD274 expression was related to patient prognosis. PD-L1 was verified from HNSCC samples at local hospital with immunohistochemistry...
May 15, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29760589/tumor-microenvironment-unknown-niche-with-powerful-therapeutic-potential
#13
REVIEW
Tomasz Kolenda, Weronika Przybyła, Marta Kapałczyńska, Anna Teresiak, Maria Zajączkowska, Renata Bliźniak, Katarzyna M Lamperska
Head and neck squamous cell carcinomas (HNSCC) are in a group of cancers that are the most resistant to treatment. The survival rate of HNSCC patients has been still very low since last 20 years. The existence of relationship between oncogenic and surrounding cells is probably the reason for a poor response to treatment. Fibroblasts are an important element of tumor stroma which increases tumor cells ability to proliferate. Another highly resistance, tumorigenic and metastatic cell population in tumor microenvironment are cancer initiating cells (CICs)...
May 2018: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/29756633/immunotherapy-in-head-and-neck-cancer-scientific-rationale-current-treatment-options-and-future-directions
#14
Uta Rothschild, Laurent Muller, Axel Lechner, Hans A Schlösser, Dirk Beutner, Heinz Läubli, Alfred Zippelius, Sacha I Rothschild
Head and neck squamous cell carcinoma (HNSCC) is a frequent tumour arising from multiple anatomical subsites in the head and neck region. The treatment for early-stage disease is generally single modality, either surgery or radiotherapy. The treatment for locally advanced tumours is multimodal. For recurrent/metastatic HNSCC palliative chemotherapy is standard of care. The prognosis is limited and novel treatment approaches are urgently needed. HNSCC evades immune responses through multiple resistance mechanisms...
May 14, 2018: Swiss Medical Weekly
https://www.readbyqxmd.com/read/29750890/impact-of-age-on-disease-progression-and-microenvironment-in-oral-cancer
#15
V K Vincent-Chong, H DeJong, L J Rich, A Patti, M Merzianu, P A Hershberger, M Seshadri
Despite the recognized link between aging and cancer, most preclinical studies in experimental tumor models are conducted with 6- to 8-wk-old rodents. The goal of the present study was to examine the impact of age on tumor incidence, growth, and microenvironmental characteristics in mouse models of head and neck squamous cell carcinoma (HNSCC). Experimental studies were conducted with the 4-nitroquinoline-oxide (4NQO) oral carcinogenesis model and orthotopic FaDu HNSCC xenografts, established in young (7 to 12 wk of age) and old (65 to 70 wk of age) female C57BL/6 mice ( n = 44; 4NQO model) and severe combined immunodeficient mice ( n = 13; HNSCC xenografts)...
May 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29748768/microvessel-density-in-head-and-neck-squamous-cell-carcinoma
#16
Tomasz Szafarowski, Janusz Sierdzinski, Miroslaw J Szczepanski, Theresa L Whiteside, Nils Ludwig, Antoni Krzeski
PURPOSE: Microvessel density (MVD) corresponds to the intensity of neo-angiogenesis. MVD assessments are based on the expression levels of the vascular endothelium markers such as, e.g., CD34 or CD105. The goal of this study was to assess MVD among patients with head and neck squamous cell carcinoma (HNSCC), and to evaluate the predictive value of MVD in head and neck cancers. METHODS: The study included 49 patients treated for HNSCC and 11 patients with dysplasia of the upper respiratory tract epithelium...
May 10, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29747488/investigating-the-feasibility-of-targeted-next-generation-sequencing-to-guide-the-treatment-of-head-and-neck-squamous-cell-carcinoma
#17
Sun Min Lim, Sang Hee Cho, In Gyu Hwang, Jae Woo Choi, Hyun Chang, Myung-Ju Ahn, Keon Uk Park, Ji-Won Kim, Yoon Ho Ko, Hee Kyung Ahn, Byoung Chul Cho, Byung-Ho Nam, Sang Hoon Chun, Ji Hyung Hong, Jung Hye Kwon, Jong Gwon Choi, Eun Joo Kang, Tak Yun, Keun-Wook Lee, Joo-Hang Kim, Jin Soo Kim, Hyun Woo Lee, Min Kyoung Kim, Dongmin Jung, Ji Eun Kim, Bhumsuk Keam, Hwan Jung Yun, Sangwoo Kim, Hye Ryun Kim
Purpose: Head and neck squamous cell carcinoma (HNSCC) is a deadly disease in which precision medicine needs to be incorporated. We aimed to implement next-generation sequencing (NGS) in determining actionable targets to guide appropriate molecular targeted therapy in HNSCC patients. Materials and Methods: Ninety-three tumors and matched blood samples underwent targeted sequencing of 244 genes using the Illumina HiSeq 2500 platform with an average depth of coverage of greater than 1,000×...
May 9, 2018: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29747487/diagnostic-significance-of-p38-isoforms-p38%C3%AE-p38%C3%AE-p38%C3%AE-p38%C3%AE-in-head-and-neck-squamous-cell-carcinoma-comparative-serum-level-evaluation-and-design-of-novel-peptide-inhibitor-targeting-the-same
#18
Vishal Sahu, Lokesh Nigam, Vertica Agnihotri, Abhishek Gupta, Shashank Shekhar, Naidu Subbarao, Suman Bhaskar, Sharmistha Dey
Purpose: The p38 mitogen-activated protein kinase (MAPKs) play a crucial role in the production of pro-inflammatory cytokines and over-expression of it increase cytokines which promote cancer. Among four isoforms, p38α has been well studied in head and neck squamous cell carcinoma (HNSCC) and other cancers as a therapeutic target.p38δ has recently emerged as a potential disease-specific drug target. Elevated serum p38α level in HNSCC was reported earlier from our lab. This study aims to estimate the levels of p38 MAPK-isoforms in the serum of HNSCC and design peptide inhibitor targeting the same...
May 9, 2018: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29745089/hpv-infection-in-oropharyngeal-squamous-cell-carcinomas-correlation-with-tumor-size
#19
Eleftheria Gletsou, Theodoros A Papadas, Evangelia Baliou, Evangelos Tsiambas, Vasileios Ragos, Ilianna E Armata, George E Metaxas, Panagiotis P Fotiades
PURPOSE: Human papillomavirus (HPV) is implicated in carcinogenesis of a variety of epithelia, including oropharyngeal and laryngeal. High risk (HR) HPV persistent infection in head and neck squamous cell carcinomas (HNSCC) is a significant event, but its influence regarding the prognosis and survival in these patients remains under consideration. Our aim was to analyze a series of oropharyngeal (OP) SCCs at the HPV DNA level, correlating them to the survival status of the corresponding patients...
March 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29743718/expressional-analysis-of-disease-relevant-signalling-pathways-in-primary-tumours-and-metastasis-of-head-and-neck-cancers
#20
Dorothee Goesswein, Negusse Habtemichael, Aslihan Gerhold-Ay, Johanna Mazur, Désirée Wünsch, Shirley K Knauer, Julian Künzel, Christoph Matthias, Sebastian Strieth, Roland H Stauber
Head and neck squamous cell carcinoma (HNSCC) often metastasize to lymph nodes resulting in poor prognosis for patients. Unfortunately, the underlying molecular mechanisms contributing to tumour aggressiveness, recurrences, and metastasis are still not fully understood. However, such knowledge is key to identify biomarkers and drug targets to improve prognosis and treatments. Consequently, we performed genome-wide expression profiling of 15 primary HNSSCs compared to corresponding lymph node metastases and non-malignant tissue of the same patient...
May 9, 2018: Scientific Reports
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