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https://www.readbyqxmd.com/read/27889184/gec-estro-acrop-recommendations-for-head-neck-brachytherapy-in-squamous-cell-carcinomas-1st-update-improvement-by-cross-sectional-imaging-based-treatment-planning-and-stepping-source-technology
#1
György Kovács, Rafael Martinez-Monge, Ashwini Budrukkar, Jose Luis Guinot, Bengt Johansson, Vratislav Strnad, Janusz Skowronek, Angeles Rovirosa, Frank-André Siebert
The Head and Neck Working Group of the GEC-ESTRO (Groupe Européen de Curiethérapie - European Society for Therapeutic Radiology and Oncology) published in 2009 the consensus recommendations for low-dose rate, pulsed-dose rate and high-dose rate brachytherapy in head & neck cancers. The use of brachytherapy in combination with external beam radiotherapy and/or surgery was also covered as well as the use of brachytherapy in previously irradiated patients. Given the developments in the field, these recommendations needed to be updated to reflect up-to-date knowledge...
November 23, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27875901/reducing-radiation-related-morbidity-in-the-treatment-of-nasopharyngeal-carcinoma
#2
Jason W Chan, Upendra Parvathaneni, Sue S Yom
While radiation therapy is the mainstay of treatment for nasopharyngeal carcinoma, the anatomic location of the nasopharynx in close proximity to radiation-sensitive organs such as the salivary glands, optic nerves and chiasm, cochlea, brainstem and temporal lobes presents a special challenge. Technological approaches to reducing the morbidity of nasopharyngeal cancer irradiation have been historically successful with the evolution from 2D techniques to increasingly conformal forms of radiation therapy. This report reviews normal tissue dose constraints and major considerations in target delineation for patients with nasopharyngeal cancer in the intensity-modulated radiation therapy era...
November 23, 2016: Future Oncology
https://www.readbyqxmd.com/read/27849340/intra-arterial-cetuximab-for-the-treatment-of-recurrent-unresectable-head-and-neck-squamous-cell-carcinoma-%C3%A2
#3
Tristan Tham, Timothy G White, Shamik Chakraborty, Rohan R Lall, Rafael Ortiz, David J Langer, Deborah Shatzkes, Christopher G Filippi, Dennis Kraus, John A Boockvar, Peter D Costantino
IMPORTANCE: Management of recurrent head and neck squamous cell carcinoma is a common and challenging clinical problem in head and neck oncology. OBJECTIVE: Here we present the first reported case of super-selective intra-arterial (SSIA) microcatheter based local delivery of cetuximab for head and neck cancer. This technical report describes the techniques used to deliver the SSIA dose of cetuximab, as well as the patient outcome. DESIGN: This technical report is part of an ongoing Phase I Clinical Trial...
November 2016: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/27833652/molecular-detection-of-epstein-barr-virus-in-nasopharyngeal-carcinoma-among-sudanese-population
#4
Ali Edreis, Mona Ali Mohamed, Nouh S Mohamed, Emmanuel E Siddig
BACKGROUND: Nasopharyngeal carcinoma (NPC) is the most common cancer arising from the nasopharynx that varies significantly from other cancers of the head and neck in its occurrence, causes, clinical behavior, and treatment. NPC caused by an interaction between infection with EBV and environmental and genetic factors, encompasses a multistep oncogenic process. The frequency of Epstein-Barr virus EBV among nasopharyngeal carcinoma is well known worldwide, however, in the Sudan there is barely a published data...
2016: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/27802187/long-noncoding-rnas-in-head-and-neck-cancer
#5
Xiuhua Li, Yongbing Cao, Xiaojian Gong, Hongjiao Li
Head and neck cancers (HNCs) include a series of malignant tumors arising in epithelial tissues, typically oral cancer, laryngeal cancer, nasopharynx cancer and thyroid cancer. HNCs are important contributors to cancer incidence and mortality, leading to approximately 225,100 new patients and 77,500 deaths in China every year. Determination of the mechanisms of HNC carcinogenesis and progression is an urgent priority in HNC treatment. Long noncoding RNAs (lncRNAs) are noncoding RNAs longer than 200 bps. lncRNAs have been reported to participate in a broad scope of biological processes, and lncRNA dysregulation leads to diverse human diseases, including cancer...
October 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27765529/identification-of-key-genes-involved-in-nasopharyngeal-carcinoma
#6
Xue Jiang, Lichun Feng, Baoqiang Dai, Liping Li, Weiwei Lu
INTRODUCTION: Nasopharyngeal carcinoma is the most common cancer originating from the nasopharynx. OBJECTIVE: To study the mechanisms of nasopharyngeal carcinoma, we analyzed GSE12452 microarray data. METHODS: GSE12452 was downloaded from the Gene Expression Omnibus database and included 31 nasopharyngeal carcinoma samples and 10 normal nasopharyngeal tissue samples. The differentially expressed genes were screened by ANOVA in the PGS package...
September 26, 2016: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/27730326/radiotherapy-for-elderly-patients-and-cetuximab-a-monocentric-study
#7
Alexander T Falk, Christophe Hébert, Antoine Tran, Marie-Eve Chand, Axel Leysalle, Juliette Thariat, Olivier Dassonville, Gilles Poissonnet, Alexandre Bozec, Esma Saada, Fréderic Peyrade, Karen Benezery
Concomitant radiotherapy and cetuximab association has shown superiority to exclusive radiotherapy for head and neck cancers. Data on this association are scarce for the elderly population despite its rising incidence. A retrospective monocentric data collection was performed in the Antoine Lacassagne Cancer Center in France. Inclusion criteria were: age >70 years at time of diagnosis, histologically proven head and neck epidermoid carcinoma, treated with radiotherapy combined with cetuximab. Thirty-five patients were included between 2008 and 2012...
October 11, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27721608/argyrophilic-nuclear-organizer-region-and-p73-expression-in-head-and-neck-squamous-cell-carcinomas-teammates-or-adversaries
#8
Sunil Pazhayanur Venkateswaran, Leviana Ercylina Nathan, Vimi Sunil Mutalik, Noor Hasni Shamsuddin
CONTEXT: Head and neck squamous cell carcinoma (HNSCC) consists of squamous cell carcinomas (SCCs) arising in the upper aerodigestive tract and accounts for 5% of cancers worldwide. In Malaysia, cancers of the nasopharynx, larynx, tongue and oral cavity are among the top twenty most common cancers in men. Argyrophilic nuclear organizer regions (AgNORs) are increased from normal mucosa to premalignant lesions to malignant lesions and have been associated with tumor grade and prognosis of patients...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/27698802/identification-of-genes-involved-in-epstein-barr-virus-associated-nasopharyngeal-carcinoma
#9
Junguo Wang, Fang Mei, Xia Gao, Shoulin Wang
Nasopharyngeal carcinoma (NPC) is the most common cancer originating from the nasopharynx, and can be induced by infection with Epstein-Barr virus (EBV). To study the mechanisms of EBV-associated NPC, a microarray of the GSE12452 dataset was analyzed. GSE12452 was downloaded from Gene Expression Omnibus and consisted of 31 NPC samples and 10 normal healthy nasopharyngeal tissue samples. The differentially-expressed genes (DEGs) were screened using the linear models for microarray data package in R. Using Database for Annotation, Visualization and Integrated Discovery software, potential functions of the DEGs were predicted by Gene Ontology and pathway enrichment analyses...
October 2016: Oncology Letters
https://www.readbyqxmd.com/read/27636353/fusion-proteins-in-head-and-neck-neoplasms-clinical-implications-genetics-and-future-directions-for-targeting
#10
Derek A Escalante, He Wang, Christopher E Fundakowski
Fusion proteins resulting from chromosomal rearrangements are known to drive the pathogenesis of a variety of hematological and solid neoplasms such as chronic myeloid leukemia and non-small-cell lung cancer. Efforts to elucidate the role they play in these malignancies have led to important diagnostic and therapeutic triumphs, including the famous development of the tyrosine kinase inhibitor dasatinib targeting the BCR-ABL fusion. Until recently, there has been a paucity of research investigating fusion proteins harbored by head and neck neoplasms...
August 15, 2016: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/27631245/hiv-and-cancer-registry-linkage-identifies-a-substantial-burden-of-cancers-in-persons-with-hiv-in-india
#11
Sheela V Godbole, Karabi Nandy, Mansi Gauniyal, Pallavi Nalawade, Suvarna Sane, Shravani Koyande, Joy Toyama, Asha Hegde, Phil Virgo, Kishor Bhatia, Ramesh S Paranjape, Arun R Risbud, Sam M Mbulaiteye, Ronald T Mitsuyasu
We utilized computerized record-linkage methods to link HIV and cancer databases with limited unique identifiers in Pune, India, to determine feasibility of linkage and obtain preliminary estimates of cancer risk in persons living with HIV (PLHIV) as compared with the general population.Records of 32,575 PLHIV were linked to 31,754 Pune Cancer Registry records (1996-2008) using a probabilistic-matching algorithm. Cancer risk was estimated by calculating standardized incidence ratios (SIRs) in the early (4-27 months after HIV registration), late (28-60 months), and overall (4-60 months) incidence periods...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27627138/predictors-for-trismus-in-patients-receiving-radiotherapy
#12
S Joyce van der Geer, Jolanda I Kamstra, Jan L N Roodenburg, Marianne van Leeuwen, Harry Reintsema, Johannes A Langendijk, Pieter U Dijkstra
BACKGROUND: Trismus, a restricted mouth opening in head and neck cancer patients may be caused by tumor infiltration in masticatory muscles, radiation-induced fibrosis or scarring after surgery. It may impede oral functioning severely. The aims of our study were to determine: (1) the incidence of trismus at various time points; and (2) the patient, tumor, and treatment characteristics that predict the development of trismus after radiotherapy in head and neck cancer patients using a large database (n = 641)...
November 2016: Acta Oncologica
https://www.readbyqxmd.com/read/27604995/imrt-delivers-lower-radiation-doses-to-dental-structures-than-3drt-in-head-and-neck-cancer-patients
#13
Eduardo Rodrigues Fregnani, Cláudia Joffily Parahyba, Karina Morais-Faria, Felipe Paiva Fonseca, Pedro Augusto Mendes Ramos, Fábio Yone de Moraes, Karina Gondim Moutinho da Conceição Vasconcelos, Gisela Menegussi, Alan Roger Santos-Silva, Thais B Brandão
BACKGROUND: Radiotherapy (RT) is frequently used in the treatment of head and neck cancer, but different side-effects are frequently reported, including a higher frequency of radiation-related caries, what may be consequence of direct radiation to dental tissue. The intensity-modulated radiotherapy (IMRT) was developed to improve tumor control and decrease patient's morbidity by delivering radiation beams only to tumor shapes and sparing normal tissue. However, teeth are usually not included in IMRT plannings and the real efficacy of IMRT in the dental context has not been addressed...
2016: Radiation Oncology
https://www.readbyqxmd.com/read/27604973/clinical-outcomes-of-imrt-planned-with-or-without-pet-ct-simulation-for-patients-with-pharyngeal-cancers
#14
Tomohiro Matsuura, Yasumasa Nishimura, Kiyoshi Nakamatsu, Shuichi Kanamori, Kazuki Ishikawa, Izumi Tachibana, Makoto Hosono, Toru Shibata
BACKGROUND: Clinical results of computed tomography (CT) simulations and [(18)F]-fluoro-2-deoxyglucose (FDG) positron emission tomography (PET)/CT simulations were compared retrospectively. MATERIALS AND METHODS: Between 2006 and 2011, [(18)F]-FDG PET/CT simulation was performed on 68 consecutive patients with pharyngeal cancers (PET/CT group). As an historical control, conventional CT simulation was performed on 56 consecutive patients with pharyngeal cancer between 2000 and 2006 (CT group)...
September 7, 2016: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27604090/recent-advances-in-oncogenic-roles-of-the-trpm7-chanzyme
#15
Mathieu Gautier, Marianne Perrière, Michael Monet, Alison Vanlaeys, Irina Korichneva, Isabelle Dhennin-Duthille, Halima Ouadid-Ahidouch
Transient Receptor Potential Melastatin-related 7 (TRPM7) is a non-selective cation channel fused with a functional kinase domain. Physiologically, TRPM7 channel is involved in magnesium homeostasis, cell survival and gastrulation. The channel part is responsible for calcium, magnesium, and metal trace entries. Cation current through TRPM7 channel is inhibited by both intracellular magnesium and magnesium complexed with nucleotides. In parallel, the kinase is able to phosphorylate cytoskeleton proteins like myosin chain regulating cell tension and motility...
September 7, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27602493/a-meta-analysis-of-weekly-cisplatin-versus-three-weekly-cisplatin-chemotherapy-plus-concurrent-radiotherapy-crt-for-advanced-head-and-neck-cancer-hnc
#16
Jian Guan, Yue Zhang, Qinyang Li, Yaowei Zhang, Lu Li, Min Chen, Nanjie Xiao, Longhua Chen
PURPOSE: This study was performed to compare the efficacies and acute toxicities in weekly- and three weekly- cisplatin based concurrent chemoradiotherapy (CCRT) for advanced HNC patients. RESULTS: 779 patients of 10 studies were eligible. No difference in the 2-, 3-year OS or 1-, 2-year LRFS was observed, whereas patients in three weekly CCRT arm tended to have a better 5-year OS (HR=1.79, 95%C 0.97-3.31, p=0.06). Weekly arm seemed to show less gastrointestinal toxicities (RR=0...
September 2, 2016: Oncotarget
https://www.readbyqxmd.com/read/27598726/stressors-alter-intercellular-communication-and-exosome-profile-of-nasopharyngeal-carcinoma-cells
#17
Maria Harmati, Zsofia Tarnai, Gabor Decsi, Sandor Kormondi, Zsolt Szegletes, Laszlo Janovak, Imre Dekany, Okay Saydam, Edina Gyukity-Sebestyen, Gabriella Dobra, Istvan Nagy, Katalin Nagy, Krisztina Buzas
BACKGROUND: Head and neck cancers comprise the sixth most common cancer type worldwide. One of the most remarkable malignancies of the head and neck is the cancer of the nasopharynx, with a strong metastatic tendency already in the early stage. Besides the conventional pathways of metastasis formation, the information content of exosomes produced by the cancer cells may play a key role in metastatic transformation. The aim of this study was to investigate how stressors alter the characteristic of tumor derived exosomes...
September 6, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27565752/cancer-cases-attributable-to-alcohol-consumption-in-brazil
#18
Luiz Claudio Santos Thuler, Raquel Ferreira de Menezes, Anke Bergmann
This is the first study specifically estimating the proportion of new cancer cases that could be attributable to alcohol consumption in the year 2012 in Brazil. The proportion of exposed cases and the association between alcohol and lip and oral cavity, nasopharynx, other pharynx, larynx, esophagus, colorectum, female breast, liver, and intrahepatic bile ducts cancers was based on data made available by the Integrator System of Hospital Cancer Registries. The cancer incidence was obtained from the estimates produced by GLOBOCAN...
August 2016: Alcohol
https://www.readbyqxmd.com/read/27534408/prospective-randomized-clinical-studies-involving-reirradiation-lessons-learned
#19
REVIEW
Carsten Nieder, Johannes A Langendijk, Matthias Guckenberger, Anca L Grosu
BACKGROUND: Reirradiation is a potentially useful option for many patients with recurrent cancer. The purpose of this study was to review all recently published randomized trials in order to identify methodological strengths and weaknesses, comment on the results, clinical implications and open questions, and give advice for the planning of future trials. MATERIALS AND METHODS: Systematic review of trials published between 2000 and 2015 (databases searched were PubMed, Scopus and Web of Science)...
October 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/27509984/expression-of-epstein-barr-virus-encoded-ebna1-and-lmp1-oncoproteins-in-nasopharyngeal-carcinomas-from-northeast-india
#20
Parikhit Borthakur, Kangkana Kataki, Chenole Keppen, V Khamo, Subhash Medhi, Manab Deka
BACKGROUND: Nasopharyngeal carcinoma (NPC), a malignancy arising from the epithelial lining of the nasopharynx, is distinct from others cancers in terms of its epidemiologic features. It is rare in most parts of the world except for a few regions with populations of Mongoloid origin. OBJECTIVES: To study the expression pattern of Epstein Barr virus (EBV) encoded oncoproteins EBNA1 and LMP1 in different histological types of NPC and to correlate expression patterns with sex, age and histological types...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
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