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Oral squamous cell carcinoma

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https://www.readbyqxmd.com/read/28328599/burkitt-lymphoma-in-adult-with-atypical-clinical-presentation-primarily-involving-the-oral-soft-tissue
#1
Natália Galvão Garcia, Moacyr Tadeu Vicente Rodrigues, Rodrigo Queiroz Aleixo, Denise Tostes Oliveira
Non-Hodgkin lymphoma is the second most common neoplasm of the head and neck after squamous cell carcinoma. However, it accounts for only 3.5% of all malignancies of the oral cavity. Oral lesions are often a component of disseminated disease process that may involve regional lymph nodes or may at times represent the primary extra nodal form of the disease. Although, isolated oral lymphoma in adults is extremely rare, this paper presents a patient with Burkitt lymphoma in an adult male with atypical clinical presentation primarily involving the oral soft tissue...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28327934/pazopanib-or-placebo-in-completely-resected-stage-i-nsclc-patients-results-of-the-phase-ii-ifct-0703-trial
#2
B Besse, J Mazières, L Ribassin-Majed, F Barlesi, J Bennouna, R Gervais, L Moreau, H Berard, D Debieuvre, O Molinier, D Moro-Sibilot, P J Souquet, S Jacquot, L Petit, H Lena, J P Pignon, B Lacas, F Morin, B Milleron, G Zalcman, J C Soria
Background: Adjuvant treatment in resected stage I non-small cell lung cancer (NSCLC) is generally not recommended. Pazopanib is an oral tyrosine kinase inhibitor of VEGFR-1/2/3 and PDGFR-α/β. We explored the feasibility and efficacy of adjuvant pazopanib in this population. Patients and methods: In this double-blind phase II/III trial, patients with resected stage I NSCLC were randomized to placebo or pazopanib 800 mg/d (P800) for 6 months with a two-step Fleming design...
February 23, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28327651/inhibition-of-cathepsin-s-confers-sensitivity-to-methyl-protodioscin-in-oral-cancer-cells-via-activation-of-p38-mapk-jnk-signaling-pathways
#3
Ming-Ju Hsieh, Chiao-Wen Lin, Mu-Kuan Chen, Su-Yu Chien, Yu-Sheng Lo, Yi-Ching Chuang, Yi-Ting Hsi, Chia-Chieh Lin, Jui-Chieh Chen, Shun-Fa Yang
Oral cancer is one of the most common cancers in the world. Approximately 90% of oral cancers are subtyped to oral squamous cell carcinoma (OSCC). Despite advances in diagnostic techniques and improvement in treatment modalities, the prognosis remains poor. Therefore, an effective chemotherapy mechanism that enhances tumor sensitivity to chemotherapeutics is urgently needed. Methyl protodioscin (MP) is a furostanol bisglycoside with a wide range of beneficial effects, including anti-inflammatory and anti-cancer properties...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326728/-effect-of-clock-gene-per1-knockdown-on-clock-gene-networks-in-human-oral-squamous-cell-carcinoma
#4
Zhao Qin, Ao Yiran, Yang Kai, Su Xiaoli, Lü Xiaoqiang
OBJECTIVE: This study investigated the effect of clock gene PER1 on the expression levels of other clock genes in clock gene networks in oral squamous cell carcinoma cells. METHODS: We used RNA interference mediated by short hairpin RNAs (shRNAs) to effectively knock down PER1 in SCC15 human oral squamous cell carcinoma cells. Flow cytometry was used to detect the degree of proliferation and apoptosis of the cells after PER1 knockdown, and quantitative real-time PCR was used to detect the mRNA expression levels of the clock genes CLOCK, BMAL1, PER1, PER2, PER3, DEC1, DEC2, CRY1, CRY2, TIM, CKIE, RORA, NPAS2, and REV-ERBA...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28326594/hypoacetylation-of-acetyl-histone-h3-h3k9ac-as-marker-of-poor-prognosis-in-oral-cancer
#5
Liana Preto Webber, Vivian Petersen Wagner, Marina Curra, Pablo Agustin Vargas, Luise Meurer, Vinícius Coelho Carrard, Cristiane Helena Squarize, Rogério Moraes Castilho, Manoela Domingues Martins
AIMS: Epigenetics refers to changes in cell characteristics that occur independently of modifications to the DNA sequence. Oral carcinogenesis is influenced by modifications in epigenetic mechanisms, including changes in histones, which are proteins that support chromatin remodeling for the dynamic regulation of gene expression and silencing. The dysregulation of histone acetylation can lead to the uncontrolled activity of different genes, thereby triggering events associated with malignant transformation...
March 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28325607/japanese-clinical-practice-guideline-for-head-and-neck-cancer
#6
REVIEW
Ken-Ichi Nibu, Ryuichi Hayashi, Takahiro Asakage, Hiroya Ojiri, Yoshihiro Kimata, Takeshi Kodaira, Toshitaka Nagao, Torahiko Nakashima, Takashi Fujii, Hirofumi Fujii, Akihiro Homma, Kazuto Matsuura, Nobuya Monden, Takeshi Beppu, Nobuhiro Hanai, Tadaaki Kirita, Yuzuru Kamei, Naoki Otsuki, Naomi Kiyota, Sadamoto Zenda, Ken Omura, Koichi Omori, Tetsuo Akimoto, Kazuyoshi Kawabata, Seiji Kishimoto, Hiroya Kitano, Iwai Tohnai, Takashi Nakatsuka
OBJECTIVE: The first revision of "Japanese Clinical Practice Guideline for Head and Neck Cancer" was made in 2013 by the clinical practice guideline committee of Japan Society for Head and Neck Cancer, in response to the revision of the TNM classification. METHODS: 34 CQs (Clinical Questions) were newly adopted to describe the diagnosis and treatment methods currently considered most appropriate, and offered recommendation grade made by the consensus of the committee...
March 18, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28324180/lateral-pharyngotomy-approach-in-the-treatment-of-oropharyngeal-carcinoma
#7
Andy Bertolin, Guido Ghirardo, Marco Lionello, Luciano Giacomelli, Marco Lucioni, Giuseppe Rizzotto
Surgery for early-intermediate oropharyngeal squamous cell carcinoma (OPSCC) may involve using transoral endoscopic approaches or open surgical procedures. "Lateral pharyngotomy" (LP) is an open surgical approach that improves exposure of the oropharyngeal region, while avoiding mandibulotomy. The aim of the present study was to retrospectively analyze our experience with the surgical treatment of early-intermediate OPSCC using the LP approach, and to investigate the potentially prognostic clinical and/or pathological factors that might identify patients at higher risk of recurrence after primary surgery...
March 21, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28322198/multiple-and-recurrent-squamous-cell-carcinoma-of-the-oral-cavity-after-graft-versus-host-disease
#8
Xiu Hong Weng, Yu Zhen Xing, Bo Cheng
Oral squamous cell carcinoma (OSCC) is one of the most common secondary solid tumors in patients who have undergone hematopoietic stem cell transplantation (HSCT). However, according to previous reports, multiple and recurrent OSCC is very rare. The presented case shows the susceptibility to the development of secondary malignancies, particularly oral cancer, of patients who present with chronic graft-versus-host disease after HSCT. OSCC after HSCT appears to be more invasive and has a tendency to recur, with a poor prognosis...
February 22, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28321535/treatment-outcome-of-advance-staged-oral-cavity-cancer-concurrent-chemoradiotherapy-compared-with-primary-surgery
#9
Manupol Tangthongkum, Virat Kirtsreesakul, Pasawat Supanimitjaroenporn, Peesit Leelasawatsuk
Concurrent chemoradiotherapy (CCRT) has been reported as effective and has become an acceptable treatment in advanced oral cancer. However, to date there is insufficient data to conclude that CCRT provides a good survival outcome. The purpose of this study was to compare survival rates and complications in patients with resectable advanced oral cavity squamous cell carcinoma treated with either CCRT or surgery with adjuvant radiotherapy (RT)/chemoradiotherapy (CRT). Stage III or IVa oral cavity carcinoma patients treated with curative intent by either CCRT or surgery with adjuvant RT were identified over a 7-year period (2009-2015)...
March 20, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28320702/actinic-cheilosis-early-intervention-prevents-malignant-transformation
#10
Arvind Muthukrishnan, Laliytha Bijai Kumar
Potentially malignant disorders (PMD) have a high risk of malignant transformation. Habits such as tobacco and alcohol use predispose to PMD and subsequently to an oral carcinoma. Oral squamous cell carcinoma (OSCC) can occur even without the usage of tobacco. Occupational exposure to actinic rays may predispose to the development of OSCC in the lip. People who are involved in farming or those exposed to an environmental background radiation, such as ultraviolet rays, develop a PMD called actinic cheilosis...
March 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28320586/patients-experience-in-the-early-recovery-phase-after-removal-of-intraoral-squamous-cell-carcinoma-with-carbon-dioxide-laser
#11
M Gilmartin, T Ali, S N Rogers
Laser excision of oral cancer is well established. The aim of this cross-sectional survey was to ask patients about their main symptoms and the severity of them during the first postoperative weeks. We devised a short questionnaire in collaboration with patients, and did a cross-sectional survey of 50 consecutive patients who had laser excision of T1 and T2 oral cancers over a two-year period. The response rate was 76% (38/50). Twenty patients reported that eating was "quite a bit" or "very much of a problem" and 13 reported similar for pain...
March 17, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28320298/sodium-orthovanadate-inhibits-proliferation-and-triggers-apoptosis-in-oral-squamous-cell-carcinoma-in-vitro
#12
A A Khalil, M J Jameson
Sodium orthovanadate (SOV) is a general inhibitor of tyrosine phosphatases, a large family of enzymes that catalyze the removal of phosphate groups from tyrosine residues. SOV is commonly used in the laboratory to preserve the protein tyrosyl phosphorylation state of proteins under study. It has shown promising antineoplastic activity in some human cancer cell lines; this effect has not been fully investigated in head and neck squamous cell carcinoma. In this study, the effect of SOV on cell growth, proliferation, viability, and apoptosis was assessed in Cal27 cells, an oral squamous cell carcinoma (OSCC) cell line...
February 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28320044/multiple-concomitant-oral-cavity-cancers-incidence-management-and-outcomes
#13
Huang-Kai Kao, Mohamed Abdelrahman, Yenlin Huang, Chia-Hsuan Tsai, Megias J Barrera, Ngan-Ming Tsang, Adam J Couves, Ming-Huei Cheng, Kai-Ping Chang
BACKGROUND: Little is known about the appropriate treatment and long-term survival of patients with multiple concomitant oral cavity cancers (MOC). The aim of this study was to clarify the clinicopathological features of MOC, to compare the prognosis of MOC patients with that of patients with single oral cavity cancers (SOC), and to describe reconstructive options based on the concept of economy in autologous tissue transfer. METHODS: Data from 603 patients diagnosed with at least one squamous cell carcinoma of the oral cavity who underwent surgery for primary oral cavity cancers between 2006 and 2014 were reviewed retrospectively to identify MOC patients...
March 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28319306/microrna-802-plays-a-tumour-suppressive-role-in-tongue-squamous-cell-carcinoma-through-directly-targeting-map2k4
#14
Xiaozhen Wu, Zuode Gong, Lanying Sun, Long Ma, Qibao Wang
OBJECTIVES: Tongue squamous cell carcinoma (TSCC) is the most common oral tumours. MicroRNAs play crucial roles in many cell processes including cell viability, development, apoptosis, migration and invasion. The role of miR-802 in the TSCC is still unknown. MATERIALS AND METHODS: The miR-802 expression in TSCC tissues and cell lines was determined by quantitative real-time polymerase chain reaction. CCK-8 assay was performed to measure the cell viability, while the cell invasion assay was used to determine the cell invasion...
March 20, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28319284/advanced-squamous-cell-carcinoma-of-the-axillae-mimicking-hidradenitis-suppurativa
#15
Clio Dessinioti, Mikaella Plaka, Chrisa Zisimou, Eleftheria Christofidou, Christina Antoniou, Alexander J Stratigos
A 56 year-old man presented to our Hidradenitis Clinic with an exophytic, bovine-red, ulcerated plaque in the left axillae (figure 1). He reported that he was diagnosed with hidradenitis suppurativa when this lesion first appeared 8 years ago, as a single small, occasionally purulent, nodule, that had enlarged considerably over the past 7 months. He had previously received oral and topical antibiotics with no improvement. This article is protected by copyright. All rights reserved.
March 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28318929/biomarkers-in-diagnosis-and-therapy-of-oral-squamous-cell-carcinoma-a-review-of-the-literature
#16
Sebastian Blatt, Maximilian Krüger, Thomas Ziebart, Keyvan Sagheb, Eik Schiegnitz, Elisabeth Goetze, Bilal Al-Nawas, Andreas Max Pabst
Oral squamous cell carcinoma (OSCC) represents the sixth most common cancer, accounting for 2-4% of all malignancies worldwide. The overall survival rate of less than 60% remains generally poor, with prognosis heavily relying on the TNM staging system. Tumor size as well as the presence and extent of lymph node metastases are widely recognized as the most important predictors. However, the underlying mechanisms that lead to an aggressive phenotype are not yet fully understood. Therefore, possible biomarkers are much in need to predict prognosis, to help individualize therapy approaches, and to overcome possible resistance mechanisms...
February 16, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28318921/influence-of-tgf-%C3%AE-1-on-tumor-transition-in-oral-cancer-cell-and-bmsc-co-cultures
#17
F Böhrnsen, F Godek, J Kiesel, F J Kramer, P Brockmeyer, H Schliephake
OBJECTIVES: TGF-β1 signaling modulates epithelial mesenchymal transitions (EMT) of head and neck squamous cell carcinoma (HNSCC). Bone marrow mesenchymal stromal cells (BMSC) are able to exert a regulating influence on the expression of markers of EMT in HNSCC cells. It was thus the aim of this study to test the hypothesis that TGF-β1 modulates the interactions of tumor transition between BMSCs and HNSCC, affecting the expression of E-cadherin, Vimentin, Snail, Twist, MMP14 and beta-catenin...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28317360/-construction-of-epithelial-membrane-protein-1-eukaryotic-expression-vector-and-its-influence-on-migration-and-invasion-of-human-oral-tongue-squamous-carcinoma-cells
#18
Dai Xiaohua, Zhang Jun, Zou Huiru, Lian Xiaoli, Li Yanni, Wang Guanhua, Yan Yan
OBJECTIVE: This study aimed to construct a eukaryotic expression vector pEGFP-N1-EMP1 of epithelial mem-brane protein 1 (EMP1) and investigate its influence on migration and invasion of human oral tongue squamous carcinoma cells. METHODS: The human EMP1 gene was amplified by reverse transcription polymerase chain reaction and then ligated into the pEGFP-N1 vector by double restriction endonuclease digestion to construct pEGFP-N1-EMP1 recombinant plasmid. After sequencing identification, pEGFP-N1-EMP1 recombinant plasmid and pEGFP-N1 plasmid were transfected into human oral tongue squamous carcinoma Tb3...
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28316084/sensitivity-and-specificity-of-antibodies-against-hpv16-e6-and-other-early-proteins-for-the-detection-of-hpv16-driven-oropharyngeal-squamous-cell-carcinoma
#19
Dana Holzinger, Gunnar Wichmann, Lorena Baboci, Angelika Michel, Daniela Höfler, Manuel Wiesenfarth, Lea Schroeder, Paolo Boscolo-Rizzo, Christel Herold-Mende, Gerhard Dyckhoff, Andreas Boehm, Annarosa Del Mistro, Franz X Bosch, Andreas Dietz, Michael Pawlita, Tim Waterboer
To determine the sensitivity and specificity of HPV16 serology as diagnostic marker for HPV16-driven oropharyngeal squamous cell carcinoma (OPSCC), 214 HNSCC patients from Germany and Italy with fresh-frozen tumor tissues and sera collected before treatment were included in this study. 120 cancer cases were from the oropharynx and 94 were from head and neck cancer regions outside the oropharynx (45 oral cavity, 12 hypopharynx and 35 larynx). Serum antibodies to early (E1, E2, E6 and E7) and late (L1) HPV16 proteins were analyzed by multiplex serology and were compared to tumor HPV RNA status as the gold standard...
March 18, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28315328/tead4-yap-interaction-regulates-tumoral-growth-by-controlling-cell-cycle-arrest-at-the-g1-phase
#20
Shin Takeuchi, Atsushi Kasamatsu, Masanobu Yamatoji, Dai Nakashima, Yosuke Endo-Sakamoto, Nao Koide, Toshikazu Takahara, Toshihiro Shimizu, Manabu Iyoda, Katsunori Ogawara, Masashi Shiiba, Hideki Tanzawa, Katsuhiro Uzawa
TEA domain transcription factor 4 (TEAD4), which has critical functions in the process of embryonic development, is expressed in various cancers. However, the important role of TEAD4 in human oral squamous cell carcinomas (OSCCs) remain unclear. Here we investigated the TEAD4 expression level and the functional mechanism in OSCC using quantitative reverse transcriptase-polymerase chain reaction, Western blot analysis, and immunohistochemistry. Furthermore, TEAD4 knockdown model was used to evaluate cellular proliferation, cell-cycle analysis, and the interaction between TEAD4 and Yes-associated protein (YAP) which was reported to be a transcription coactivator of cellular proliferation...
March 14, 2017: Biochemical and Biophysical Research Communications
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