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Oral squamous cell

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https://www.readbyqxmd.com/read/27913065/hpv-status-cancer-stem-cell-marker-expression-hypoxia-gene-signatures-and-tumour-volume-identify-good-prognosis-subgroups-in-patients-with-hnscc-after-primary-radiochemotherapy-a-multicentre-retrospective-study-of-the-german-cancer-consortium-radiation-oncology
#1
Annett Linge, Fabian Lohaus, Steffen Löck, Alexander Nowak, Volker Gudziol, Chiara Valentini, Cläre von Neubeck, Martin Jütz, Inge Tinhofer, Volker Budach, Ali Sak, Martin Stuschke, Panagiotis Balermpas, Claus Rödel, Anca-Ligia Grosu, Amir Abdollahi, Jürgen Debus, Ute Ganswindt, Claus Belka, Steffi Pigorsch, Stephanie E Combs, David Mönnich, Daniel Zips, Frank Buchholz, Daniela E Aust, Gustavo B Baretton, Howard D Thames, Anna Dubrovska, Jan Alsner, Jens Overgaard, Mechthild Krause, Michael Baumann
OBJECTIVE: To investigate the impact of the tumour volume, HPV status, cancer stem cell (CSC) marker expression and hypoxia gene signatures, as potential markers of radiobiological mechanisms of radioresistance, in a contemporary cohort of patients with locally advanced head and neck squamous cell carcinoma (HNSCC), who received primary radiochemotherapy (RCTx). MATERIALS AND METHODS: For 158 patients with locally advanced HNSCC of the oral cavity, oropharynx or hypopharynx who were treated at six DKTK partner sites, the impact of tumour volume, HPV DNA, p16 overexpression, p53 expression, CSC marker expression and hypoxia-associated gene signatures on outcome of primary RCTx was retrospectively analyzed...
November 29, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27910776/molecular-pathology-of-malignant-transformation-of-oral-submucous-fibrosis
#2
Amit Chattopadhyay, Jay Gopal Ray
Oral submucous fibrosis (OSF) is prevalent mostly in Southeast Asia, particularly in the Indian subcontinent. Chewing betel nuts and betel leaves, with or without tobacco, has been associated with OSF. Betel quid contents including guvacine, arecoline, guvacoline, arecaidine, and chavibetol are considered to play an important part in the occurrence of OSF. Transformation of OSF to squamous cell carcinoma (SCC) is variable, but up to 13% conversion of OSF to SCC has been reported. Various genetic and molecular mechanisms impact the malignant transformation of OSF, causing changes in the cell cycle, DNA, keratinocytes, and keratin; tumor-cell proliferation and survival; angiogenesis; fibrosis through epithelial-mesenchymal transitions (EMTs), and tissue hypoxia...
2016: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/27910740/oral-squamous-cell-carcinoma-current-treatment-strategies-and-nanotechnology-based-approaches-for-prevention-and-therapy
#3
Sankalp A Gharat, Munira Momin, Chintan Bhavsar
Oral squamous cell carcinoma (OSCC) is the most common type of oral cancer; it involves damage to oral epithelial cells due to accumulation of multiple genetic mutations in the cells. OSCC remains major cause of morbidity and mortality in patients with head and neck cancers. Tobacco, smoking, alcohol consumption alone or with chewing tobacco, and betel quid are potential carcinogens contributing to the high occurrence of OSCC. Current treatment modalities for OSCC like chemoradiotherapy, surgery, EGFR inhibitors and COX-2 inhibitors, and photodynamic therapy have led to the major problems related to non-specific cell death...
2016: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/27908710/prognosis-of-oral-squamous-cell-carcinoma-patients-with-level-iv-v-metastasis-an-observational-study
#4
Takumi Hasegawa, Yasuyuki Shibuya, Daisuke Takeda, Eiji Iwata, Izumi Saito, Yasumasa Kakei, Akiko Sakakibara, Masaya Akashi, Tsutomu Minamikawa, Takahide Komori
PURPOSE: The objectives of this study were to retrospectively describe the characteristics and outcomes of patients with oral squamous cell carcinoma (OSCC) with level IV/V metastases, and to evaluate the multivariate relationships among potential risk factors for metastasis and prognosis. MATERIALS AND METHODS: We evaluated 291 patients (178 men and 113 women; mean age, 65.9 ± 13.5 years). Clinicopathological data, time of development of level IV/V metastases, and clinical course were investigated...
October 29, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27906459/integrative-genomic-analysis-identifies-ancestry-related-expression-quantitative-trait-loci-on-dna-polymerase-%C3%AE-and-supports-the-association-of-genetic-ancestry-with-survival-disparities-in-head-and-neck-squamous-cell-carcinoma
#5
Meganathan P Ramakodi, Karthik Devarajan, Elizabeth Blackman, Denise Gibbs, Danièle Luce, Jacqueline Deloumeaux, Suzy Duflo, Jeffrey C Liu, Ranee Mehra, Rob J Kulathinal, Camille C Ragin
BACKGROUND: African Americans with head and neck squamous cell carcinoma (HNSCC) have a lower survival rate than whites. This study investigated the functional importance of ancestry-informative single-nucleotide polymorphisms (SNPs) in HNSCC and also examined the effect of functionally important genetic elements on racial disparities in HNSCC survival. METHODS: Ancestry-informative SNPs, RNA sequencing, methylation, and copy number variation data for 316 oral cavity and laryngeal cancer patients were analyzed across 178 DNA repair genes...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27905158/metastatic-spinal-cord-compression-from-basal-cell-carcinoma-of-the-skin-treated-with-surgical-decompression-and-vismodegib-case-report-and-review-of-hedgehog-signalling-pathway-inhibition-in-advanced-basal-cell-carcinoma
#6
J McGrane, S Carswell, T Talbot
We report a case of a 66-year-old man with locally advanced and metastatic basal cell carcinoma (BCC) causing spinal cord compression, which was treated with spinal surgery and subsequent vismodegib. The patient presented with a large fungating chest wall lesion and a metastasis in T8 that was causing cord compression. He had neurosurgical decompression of the T8 lesion and fixation of the spine. Punch biopsy from the fungating chest wall lesion showed a BCC with some malignant squamous differentiation (basosquamous)...
November 30, 2016: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27905113/predictors-of-outcome-with-cetuximab-and-paclitaxel-for-head-and-neck-squamous-cell-carcinoma
#7
Bruna Pellini Ferreira, Mary Redman, Kelsey K Baker, Renato Martins, Keith D Eaton, Laura Quan Man Chow, Christina S Baik, Bernardo Goulart, Sylvia Mina Lee, Rafael Santana-Davila, Cristina P Rodriguez
OBJECTIVES: Identify predictors of outcome in patients with recurrent/metastatic head and neck squamous cell carcinoma (RMHNSCC) treated with weekly cetuximab and paclitaxel (CP). STUDY DESIGN: Retrospective analysis. METHODS: Patients with RMHNSCC treated with CP were identified and patient data was recorded. The Kaplan-Meier method was used to estimate outcomes, and Cox regression analysis was used to examine outcome predictors. RESULTS: Fifty-nine patients initiated CP between January 2007 and June 2014...
December 1, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27904690/mirna-101-acts-as-a-tumor-suppressor-in-oral-squamous-cell-carcinoma-by-targeting-cx-chemokine-receptor-7
#8
Yuan Hui, Yu Li, Yan Jing, Jian-Q Feng, Yin Ding
miR-101 is significantly downregulated in various human cancers, including oral squamous cell carcinoma (OSCC). However, the role of miR-101 in OSCC has not been elucidated. In this study, miR-101 lowly expressed in OSCC tissues and cell lines compared with that in adjacent normal tissues and human normal oral keratinocyte cells. Bioinformatics analysis predicted that miR-101 could potentially target CX chemokine receptor 7 (CXCR7), a promoter of tumor development, to attenuate OSCC progression. Restoring miR-101 expression in OSCC cells suppressed cell proliferation, invasion, and migration...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27904675/expression-of-long-non-coding-rna-hotair-in-oral-squamous-cell-carcinoma-tca8113-cells-and-its-associated-biological-behavior
#9
Huawei Liu, Zhiyong Li, Chao Wang, Lin Feng, Haitao Huang, Changkui Liu, Fengxia Li
As a long noncoding RNA, HOX transcript antisense intergenic RNA (HOTAIR) is highly expressed in many types of tumors. However, its expression and function in oral squamous cell carcinoma (OSCC) cells and tissues remains largely unknown. We herein studied the biological functions of HOTAIR in OSCC Tca8113 cells. Real-time quantitative PCR showed that HOTAIR, p21 and p53 mRNA expressions in doxorubicin (DOX)-treated or γ-ray-irradiated Tca8113 cells were up-regulated. Knockdown of p53 expression inhibited DOX-induced HOTAIR up-regulation, suggesting that DNA damage-induced HOTAIR expression may be associated with p53...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27900251/salivary-biomarkers-in-oral-squamous-cell-carcinoma-an-insight
#10
REVIEW
T Radhika, Nadeem Jeddy, S Nithya, R M Muthumeenakshi
Oral cancer refers to the malignancies that occur in the oral cavity, lip and pharynx with 90% of oral cancers being squamous cell carcinomas (OSCC). OSCC has the highest mortality ratio compared to other carcinomas. Although oral cavity is easily accessible, most oral cancers are detected at a later stage leading to lower survival rates. Early detection of OSCC is a key factor in improving the prognosis and survival rate of the patient. Rapid advancement in the field of diagnosis has enabled early diagnosis of many potentially malignant conditions even before its clinical manifestations...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27900245/image-analysis-assisted-study-of-mitotic-figures-in-oral-epithelial-dysplasia-and-squamous-cell-carcinoma-using-differential-stains
#11
Ankita Tandon, Narendra Nath Singh, V R Brave, Gadiputi Sreedhar
BACKGROUND: Mitosis is a process of cell division resulting in two genetically equivalent daughter cells. Excessive proliferation of cells due to mitosis is the hallmark in pre cancer and cancer. AIMS: This study was conducted to count the number of mitotic figures in normal oral mucosa, oral epithelial dysplasia and squamous cell carcinoma in both Hematoxylin and Eosin (H&E) and Crystal Violet stained sections. Also the overall number of mitotic figures with both stains were compared along with the evaluation of staining efficacy of both the stains...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27899978/analysis-of-clinicopathological-characteristics-associated-with-the-outcome-of-oral-squamous-cell-carcinoma-and-the-establishment-of-tissue-microarrays
#12
Xin Jin, Dongjuan Liu, Xin Zhao, Yu Zhou, Lu Jiang, Jing Li, Xin Zeng, Qianming Chen
The aim of this study was to evaluate clinicopathological risk factors associated with the fatal outcome of oral squamous cell carcinoma (OSCC) in a large cohort of Chinese patients, and to construct tissue microarrays (TMAs) using this cohort. Univariate and multiple logistic regression analyses were performed to evaluate the predictors of poor prognosis in a cohort of 232 patients with OSCC, after which the patient tumor tissues were used to construct TMAs. Univariate logistic regression analysis indicated that a poor outcome of OSCC was associated with the male gender, a history of smoking, the tumor-node-metastasis stage and lymph node metastasis...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27898189/salivary-biomarkers-as-tools-for-oral-squamous-cell-carcinoma-diagnosis-a-systematic-review
#13
REVIEW
Vitor T Stuani, Cassia M F Rubira, Adriana C P Sant'Ana, Paulo S S Santos
BACKGROUND: The oral squamous cell carcinoma (OSCC) survival rate is influenced by the fact that diagnoses occur mostly in late stages of the disease. Thus, there is a clear contribution in the early findings, making the use of minimally invasive techniques for diagnosis, such as analysis of salivary markers, interesting tools. METHODS: A systematic review was performed with all studies that establish a comparison between the levels of saliva-based markers found in patients with OSCC compared with cancer-free individuals...
November 29, 2016: Head & Neck
https://www.readbyqxmd.com/read/27896820/ppar%C3%AE-targeted-oral-cancer-treatment-and-additional-utility-of-genomics-analytic-techniques
#14
Nathan Handley, Jacob Eide, Randall Taylor, Beverly Wuertz, Patrick Gaffney, Frank Ondrey
OBJECTIVE: Peroxisome proliferator-activated receptor γ (PPARγ) agonists have been shown to have anti-proliferative, anti-angiogenic, and proapoptotic effects, leading to interest in their use as cancer therapeutics. Pioglitazone, a U.S. Food and Drug Administration-approved type II diabetes medication and PPARγ agonist, may have a role in adjuvant head-and-neck squamous cell carcinoma treatment or prevention. Therefore, the purpose of this study was: 1) to treat oral cavity cancer cells with the PPARγ activator, pioglitazone, to analyze gene expression changes; and 2) to compare those changes with our preexisting genomic data for development of hypothesis-driven additional basic and clinical studies...
November 29, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27896513/clinical-outcomes-of-taiwanese-patients-with-ct4-oral-cavity-squamous-cell-carcinoma-toward-the-identification-of-the-optimal-initial-treatment-approach-for-ct4b-patients
#15
Chun-Ta Liao, Yu-Wen Wen, Shu Ru Lee, Tsang-Wu Liu, Sen-Tien Tsai, Ming-Hsui Tsai, Jin-Ching Lin, Pei-Jen Lou, Pen-Yuan Chu, Yi-Shing Leu, Kuo-Yang Tsai, Shyuang-Der Terng, Tsung-Ming Chen, Cheng-Hsu Wang, Chih-Yen Chien, Wen-Cheng Chen, Li-Yu Lee, Chien-Yu Lin, Hung-Ming Wang, Shu-Hang Ng, Chih-Hung Lin, Tuan-Jen Fang, Shiang-Fu Huang, Chung-Jan Kang, Kai-Ping Chang, Lan Yan Yang, Tzu-Chen Yen
BACKGROUND: The National Comprehensive Cancer Network guidelines recommend that patients with oral cavity squamous cell carcinoma (OSCC) and cT4b disease should be either included in clinical trials or treated with a nonsurgical approach. However, surgery may be feasible in selected patients with adequate safety margins. Using the nationwide Taiwanese Cancer Registry Database, we examined the prognosis of cT4b OSCC patients in relation to their treatment approach. METHODS: Of the 18,910 patients with previously untreated first primary OSCC identified between 2004 and 2010, 492 (2...
November 28, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27895920/pd1-pd-l1-inhibition-as-a-potential-radiosensitizer-in-head-and-neck-squamous-cell-carcinoma-a-case-report
#16
Misako Nagasaka, Mark Zaki, Harold Kim, S Naweed Raza, George Yoo, Ho-Sheng Lin, Ammar Sukari
BACKGROUND: Immunotherapy targeting the checkpoint PD1 (programmed cell death protein 1) or PDL1 (programmed death ligand 1) has led to advances in the treatment of melanoma and non-small cell lung cancer (NSCLC). The use of such therapies has also been introduced into the treatment of other malignancies, including head and neck cancer. The combined effects of checkpoint inhibitors and anti-PD1(L1) antibodies and radiation therapy have not yet been sufficiently investigated. CASE PRESENTATION: We report a case of locally relapsed non-resectable oral cavity squamous cell carcinoma, with excellent local control after pembrolizumab (MK3475) followed by radiotherapy...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27892644/saliva-protein-biomarkers-to-detect-oral-squamous-cell-carcinoma-oscc
#17
R Nagler
In a recent study published in the Proceedings of the National Academy of Sciences of the U.S.A., Jau-Song Yu et al reported of their generated four-protein biomarker panel consisting of MMP1, KNG1, ANXA2, and HSPA5, as based on a risk-score scheme they established (Yu et al, 2016). This panel showed high sensitivity (87.5%) and specificity (80.5%) values in a test set to distinguish OSCC patients' saliva samples from non-OSCC patients' saliva samples. The risk score >0.4 detected 84% of the stage I OSCCs and a significant portion (42%) of the high-risk, visible, oral potentially-malignant disorders (OPMDs)...
November 28, 2016: Oral Diseases
https://www.readbyqxmd.com/read/27891452/clinical-utility-of-serum-homocysteine-and-folate-as-tumor-markers-in-oral-squamous-cell-carcinoma-a-cross-sectional-study
#18
Sridhar Reddy Erugula, Mahesh Kumar Kandukuri, Prasanna M Danappanavar, Kranti Kiran Reddy Ealla, Surekha Velidandla, Sangameshwar Manikya
INTRODUCTION: Oral Squamous Cell Carcinoma (OSCC) is a common malignancy involving head and neck. Identifying the markers of molecular levels or biochemical markers involving the various metabolic reactions associated with the initiation and biological behavior of individual tumors are very important in diagnosis and prognosis. AIM: To measure and compare the levels of serum Homocysteine (Hcy) and serum folate in OSCC patients, smoking group and healthy subjects and also to assess the clinical utility of serum Hcy as a potential tumor marker in OSCC...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27889930/receptor-tyrosine-kinase-amplification-is-predictive-of-distant-metastasis-in-patients-with-oral-squamous-cell-carcinoma
#19
Yu Oikawa, Kei-Ichi Morita, Kou Kayamori, Kousuke Tanimoto, Kei Sakamoto, Hiroto Katoh, Shumpei Ishikawa, Johji Inazawa, Hiroyuki Harada
This study aimed to clarify the genomic factors associated with the diagnosis and prognosis of oral squamous cell carcinoma via next-generation sequencing. We evaluated data from 220 cases of oral squamous cell carcinoma. Genomic DNA was eluted using formalin-fixed, paraffin-embedded samples, and targeted resequencing of 50 cancer-related genes was performed. In total, 311 somatic mutations were detected in 220 patients, consisting of 68 synonymous mutations and 243 non-synonymous mutations. Genes carrying mutations included TP53, CDKN2A, and PIK3CA in 79 (35...
November 27, 2016: Cancer Science
https://www.readbyqxmd.com/read/27889695/retrospective-observational-study-of-occult-cervical-lymph-node-metastasis-in-t1n0-tongue-cancer
#20
Takayuki Imai, Ikuro Satoh, Ko Matsumoto, Yukinori Asada, Tomoko Yamazaki, Shinkichi Morita, Satoshi Saijo, Jun-Ichi Okubo, Shun Wakamori, Shigeru Saijo, Kazuto Matsuura
OBJECTIVE: Delayed neck metastasis is the most significant prognostic factor for early tongue cancer. The main strategies for controlling cervical lymph nodes in Japan are elective neck dissection or watchful waiting. Elective neck dissection offers significantly better survival, but adversely impacts patient quality of life; consequently, here we investigated how to identify high-risk patients warranting elective neck dissection. METHODS: We retrospectively evaluated 67 patients with T1N0 oral tongue squamous cell carcinoma who underwent primary treatment in our department from April 2001 to March 2015...
November 25, 2016: Japanese Journal of Clinical Oncology
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