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https://www.readbyqxmd.com/read/28929584/association-between-oral-leukoplakia-and-risk-of-upper-gastrointestinal-cancer-death-a-follow-up-study-of-the-linxian-general-population-trial
#1
He Liang, Zhao Yang, Jian-Bing Wang, Pei Yu, Jin-Hu Fan, You-Lin Qiao, Philip R Taylor
BACKGROUND: This study was conducted to explore the association between oral leukoplakia (OL) and the risk of upper gastrointestinal cancer death in the Linxian General Population Trial Cohort. METHODS: A prospective cohort study of the Linxian General Population Trial Cohort was performed. Participants with OL were treated as an exposed group, and the remainder was selected as a control group. All subjects were followed monthly by village health workers and reviewed quarterly by the Linxian Cancer Registry...
September 20, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28929544/computed-tomographic-appearance-of-canine-tonsillar-neoplasia-14-cases
#2
Florence Thierry, Maurizio Longo, Evi Pecceu, Davide D Zani, Tobias Schwarz
The palatine tonsil is an uncommon site of oral canine neoplasia. For affected tonsils, squamous cell carcinoma is the most frequent type of neoplasia, followed by melanoma and lymphoma. Computed tomography (CT) is increasingly used for investigation of canine oropharyngeal pathology; however, limited information is available on the CT appearance of tonsillar neoplasms. Objectives of this retrospective descriptive case series were to characterize the CT features of canine tonsillar neoplasia and determine whether specific CT features differentiate nonneoplastic from neoplastic tonsils...
September 19, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28929330/development-of-a-rapid-analysis-method-for-bone-resection-margins-for-oral-squamous-cell-carcinoma-by-immunoblotting
#3
Claudia Haase, Bernd Lethaus, Ruth Knüchel-Clarke, Frank Hölzle, Angela Cassataro, Till Braunschweig
The purpose of this proof-of-principle study was to develop a rapid and approachable method to analyse bone resection margins in patients with oral squamous cell carcinoma (OSCC) in an intraoperative setting, similar to assessing frozen sections of soft tissue. Bone excision and risk of remaining tumour cells could be minimised, thus improving reconstruction measures and facilitating convalescence. Frozen, sawed wafers of porcine bone artificially combined with porcine skin (simulating OSCC properties) were used to develop and evaluate a new molecular method: protein transfer from non-decalcified, sawed wafers onto a membrane stained by immunofluorescence (Tissue-ProtTrans)...
September 19, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28929054/prosthetic-rehabilitation-of-a-geriatric-patient-with-squamous-cell-carcinoma-of-the-buccal-mucosa-a-report-of-clinical-challenges
#4
Raghavendra Adaki, Sarvesh Raikar, Kamal Shigli, Sivaranjani Gali
OBJECTIVE: This article aims to highlight the rehabilitation of a geriatric patient with an orofacial cheek defect by an extraoral silicone prosthesis. METHODOLOGY: Structured extra- and intra-oral examination of tissues coupled with a justified choice of impression materials, techniques, and prosthetic rehabilitation with a high-temperature vulcanizing silicone was done. RESULTS: The presence of compressible tissues, static appearance of the prosthesis during patient's facial movements, variability in complexion of the skin around the defect, and manipulating heat-vulcanized silicone were the challenges faced during clinical procedures...
April 2017: International Journal of Pharmaceutical Investigation
https://www.readbyqxmd.com/read/28928919/free-flap-transfer-reconstruction-in-managing-tongue-carcinoma-during-pregnancy
#5
Yuko Miyazaki, Kenji Fukuda, Kazutoshi Fujita, Soh Nishimoto, Tomonori Terada, Ryu Wada, Yohei Sotsuka, Kenichiro Kawai, Masao Kakibuchi
Malignant oral cancers do not commonly occur in pregnant women. But when they do, the presence of a foetus and maternal physiological changes complicate and limit the treatment options. Risk benefit assessment and balancing of them are always important. A 33-year-old woman, who was 25 weeks pregnant, presented with a squamous cell carcinoma on her tongue. She was clinically staged II (T2, N0 and M0). Discussions between the patient, surgical teams and obstetricians agreed to continue her pregnancy while managing the tumour...
August 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28928781/n-acetylneuraminic-acid-a-scrutinizing-tool-in-oral-squamous-cell-carcinoma-diagnosis
#6
Suganya Rajaram, Balamurali P Danasekaran, Ramesh Venkatachalapathy, Karthikshree Vishnu Prashad, Saranya Rajaram
BACKGROUND: Oral cancer has one of the highest mortality rate among other malignancies. An attempt has been made to assess the genetic expression of a cell surface glycoprotein component - sialic acid released by the malignant cells which will reflect on the oral squamous cell carcinoma (OSCC). The aim of this study was to estimate and correlate the salivary and serum sialic acid levels in OSCC. MATERIALS AND METHODS: In our case-control study, saliva and blood samples were obtained from Group 1 - 10 healthy controls, Group 2 - 12 well-differentiated OSCC, Group 3 - 7 moderately differentiated and 2 poorly differentiated OSCC...
July 2017: Dental Research Journal
https://www.readbyqxmd.com/read/28928368/detection-of-clinically-relevant-copy-number-alterations-in-oral-cancer-progression-using-multiplexed-droplet-digital-pcr
#7
Curtis B Hughesman, X J David Lu, Kelly Y P Liu, Yuqi Zhu, Rebecca M Towle, Charles Haynes, Catherine F Poh
Copy number alterations (CNAs), a common genomic event during carcinogenesis, are known to affect a large fraction of the genome. Common recurrent gains or losses of specific chromosomal regions occur at frequencies that they may be considered distinctive features of tumoral cells. Here we introduce a novel multiplexed droplet digital PCR (ddPCR) assay capable of detecting recurrent CNAs that drive tumorigenesis of oral squamous cell carcinoma. Applied to DNA extracted from oral cell lines and clinical samples of various disease stages, we found good agreement between CNAs detected by our ddPCR assay with those previously reported using comparative genomic hybridization or single nucleotide polymorphism arrays...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28927146/impacts-of-survivin-and-caspase-3-on-apoptosis-and-angiogenesis-in-oral-cancer
#8
Shuxia Li, Yanqi Yang, Yanping Ding, Xiaofei Tang, Zheng Sun
The present study aimed to investigate the impact of survivin and caspase-3 on apoptosis and angiogenesis in oral cancer. A total of 16 oral leukoplakia cases accompanied by low-moderate epithelial dysplasia, 12 cases of oral leukoplakia accompanied by severe epithelial dysplasia, 17 cases of high-moderate differentiated oral squamous cell carcinoma and 10 cases of normal oral mucosa were selected. Immunohistochemistry was used to detect the expression levels of survivin, caspase-3, and caspase inhibitor factor VIII in lesions from each group...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927136/low-risk-population-among-patients-with-tumor-node-metastasis-stage-iii-iv-oral-squamous-cell-carcinoma
#9
Tohru Ikeda, Sachiko Seki, Mutsunori Fujiwara, Masaaki Matsuura, Yuu Ozaki-Honda, Shuichi Fujita, Hisazumi Ikeda, Masahiro Umeda, Izumi Asahina
A novel system auxiliary to the Union for International Cancer Control classification may allow the prognosis of patients with malignant tumors at similar stages to be predicted, as currently this is challenging. The present study generated a novel system to predict populations at low risk among patients with stage III/IV oral squamous cell carcinoma (OSCC). A total of 41 patients who were diagnosed at stages III/IV OSCC and underwent surgical tumor resection were analyzed. Band-like or follicular lymphocyte infiltration, intraepithelial micro-abscess formation and natural killer (NK) cell infiltration were histopathologically evaluated...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927103/lack-of-chemopreventive-efficacy-of-metformin-in-rodent-models-of-urinary-bladder-head-and-neck-and-colon-intestine-cancer
#10
Matthew D Thompson, Ronald A Lubet, David L Mccormick, Margie L Clapper, Ann M Bode, M Margaret Juliana, Fariba Moeinpour, Clinton J Grubbs
Metformin is a biguanide employed in treating type II diabetes. Its potential efficacy for treating cancer has been demonstrated epidemiologically (lower cancer incidence in metformin users compared with users of sulfonylureas or insulin) and mechanistically, primarily in cell culture. Metformin decreases the levels of insulin-like growth factor 1 and secondarily inhibits the mammalian target of rapamycin pathway to exhibit anticancer effects. The current study examined its cancer preventive efficacy in multiple standard in situ arising cancer models...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927087/gimeracil-enhances-the-antitumor-effect-of-cisplatin-in-oral-squamous-cell-carcinoma-cells-in-vitro-and-in-vivo
#11
Koji Harada, Tarannum Ferdous, Toyoko Harada, Takanori Takenawa, Yoshiya Ueyama
Gimeracil or 5-chloro-2,4-dihydroxypyridine (CDHP) enhances the antitumor effects of 5-fluorouracil (5-FU) by inhibiting dihydropyrimidine dehydrogenase (DPD), which is involved in the degradation of 5-FU. CDHP, as part of a combination therapy, was also reported to exert a radiosensitizing effect. Therefore, CDHP may have underlying mechanisms of action other than DPD inhibition. The focus of the present study was to investigate the antitumor effects of CDHP and cisplatin (CDDP) combination treatment in vitro and in vivo against oral squamous cell carcinoma (OSCC) tumors...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926591/no-evidence-for-the-presence-of-epstein-barr-virus-in-squamous-cell-carcinoma-of-the-mobile-tongue
#12
Torben Wilms, Gulfaraz Khan, Philip J Coates, Nicola Sgaramella, Robin Fåhraeus, Asma Hassani, Pretty S Philip, Lena Norberg Spaak, Luigi Califano, Giuseppe Colella, Katarina Olofsson, Christos Loizou, Renato Franco, Karin Nylander
Squamous cell carcinoma of the head and neck (SCCHN) comprises a large group of cancers in the oral cavity and nasopharyngeal area that typically arise in older males in association with alcohol/tobacco usage. Within the oral cavity, the mobile tongue is the most common site for tumour development. The incidence of tongue squamous cell carcinoma (TSCC) is increasing in younger people, which has been suggested to associate with a viral aetiology. Two common human oncogenic viruses, human papilloma virus (HPV) and Epstein-Barr virus (EBV) are known causes of certain types of SCCHN, namely the oropharynx and nasopharynx, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28926115/long-non-coding-rna-malat1-promotes-oral-squamous-cell-carcinoma-development-via-microrna-125b-stat3-axis
#13
Shi-Min Chang, Wei-Wei Hu
Oral squamous cell carcinoma (OSCC), as the most common type of oral cancer, is responsible for almost 3% of all malignant tumors worldwide. Non-coding RNAs such as lncRNAs and microRNAs have been involved in many cancers including OSCC. Recently, lncRNA metastasis-associated lung adenocarcinoma transcript-1 (MALAT1) has been reported to play an oncogenic role in OSCC metastasis. However, the underlying mechanism of MALAT1 in regulating OSCC progression remains unclear. The aim of this study was to investigate the specific role of MALAT1 in OSCC development...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28924229/variations-in-oral-microbiota-associated-with-oral-cancer
#14
Hongsen Zhao, Min Chu, Zhengwei Huang, Xi Yang, Shujun Ran, Bin Hu, Chenping Zhang, Jingping Liang
Individual bacteria and shifts in microbiome composition are associated with human disease, including cancer. To unravel the connections underlying oral bacterial dysbiosis and oral squamous cell carcinoma (OSCC), cancer lesion samples and anatomically matched normal samples were obtained from the same patients. We then profiled the bacteria within OSCC lesion surface samples at the species level using next-generation sequencing to comprehensively investigate bacterial community composition and functional genes in these samples...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923838/syngeneic-mouse-models-of-oral-cancer-are-effectively-targeted-by-anti-cd44-based-nir-pit
#15
Tadanobu Nagaya, Yuko Nakamura, Shuhei Okuyama, Fusa Ogata, Yasuhiro Maruoka, Peter L Choyke, Clint Alen, Hisataka Kobayashi
Oral cavity squamous cell carcinoma (OSCC) is considered one of the most aggressive subtypes of cancer. Anti-CD44 monoclonal antibodies (mAbs) are a potential therapy against CD44 expressing OSCC, however, to date the therapeutic effects have been disappointing. Here, a new cancer treatment is described, near-infrared photoimmunotherapy (NIR-PIT), that uses anti-CD44 mAbs conjugated to the photoabsorber, IR700DX. This conjugate is injected into mice harboring one of three CD44 expressing syngeneic murine oral cancer cell (MOC) lines, MOC1 (immunogenic), MOC2 mKate2 (moderately immunogenic), and MOC2-luc (poorly immunogenic)...
September 18, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28923296/malignant-transformation-of-oral-leukoplakia-in-a-patient-with-dyskeratosis-congenita
#16
Michelle Bongiorno, Shayna Rivard, Daniel Hammer, Joshua Kentosh
Dyskeratosis congenita (DC) is a rare, inherited, bone marrow failure syndrome caused by premature telomere shortening. The classic mucocutaneous triad of clinical features comprises reticulated skin pigmentation, nail dysplasia, and oral leukoplakia. Multiple somatic features, including bone marrow failure, pulmonary fibrosis, and liver disease, are also common. DC significantly increases the risk for malignant transformation, including myelodysplastic syndrome, acute myeloid leukemia, head and neck squamous cell carcinoma, and anogenital cancer...
August 12, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28923272/the-spectrum-of-oral-lesions-presenting-clinically-with-papillary-verrucous-features
#17
Sara Whitefield, Vadim Raiser, Amir Shuster, Shlomi Kleinman, Benjamin Shlomi, Ilana Kaplan
PURPOSE: We sought to study the spectrum of oral pathologies presenting clinically with papillary-verrucous features. MATERIALS AND METHODS: A 10-year (2007 to 2016) retrospective study of oral papillary lesions was undertaken. All biopsy reports that included a clinical description of papillary or verrucous architecture were retrieved. The data collected included clinical features, size, color, location, histopathologic diagnosis, age, and gender. RESULTS: The study included 137 patients, with a total of 151 lesions...
August 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28922483/molecular-basis-of-oral-squamous-cell-carcinoma-in-young-patients-is-it-any-different-from-older-patients
#18
REVIEW
Sara Ferreira Dos Santos Costa, Peter A Brennan, Ricardo Santiago Gomez, Eduardo Rodrigues Fregnani, Alan Roger Santos-Silva, Manoela Domingues Martins, Gilberto de Castro-Junior, Siavash Rahimi, Felipe Paiva Fonseca
Oral squamous cell carcinoma (OSCC) is the commonest subtype of oral cancer, mainly affecting older patients. It used to be a rare disease among individuals younger than 40 years, but recently increased incidences in this age group are being reported worldwide. The pathogenesis of OSCC affecting young patients remains controversial and the well known etiological factors for oral cancer, tobacco and alcohol use, are believed to play a minor role in the carcinogenesis of the neoplasm, suggesting that the etiology and the molecular basis of OSCC may differ between younger and older patients...
September 18, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28921872/first-line-therapy-with-dacomitinib-an-orally-available-pan-her-tyrosine-kinase-inhibitor-for-locally-advanced-or-metastatic-penile-squamous-cell-carcinoma-results-of-an-open-label-single-arm-single-center-phase-2-study
#19
A Necchi, S Lo Vullo, F Perrone, D Raggi, P Giannatempo, G Calareso, N Nicolai, L Piva, D Biasoni, M Catanzaro, T Torelli, S Stagni, E Togliardi, M Colecchia, A Busico, A Gloghini, A Testi, L Mariani, R Salvioni
OBJECTIVE: To harness the frontline therapy in advanced penile squamous cell carcinoma (PSCC), for which chemotherapy exerts moderate activity but poor efficacy. Dacomitinib is an irreversible, pan-epidermal growth factor receptor (HER) inhibitor. PATIENTS AND METHODS: In a phase 2 study (NCT01728233), patients received dacomitinib 45 mg/day, orally, continuously. Inclusion criteria were SCC histology, clinical stage N2-3 or M1 (TNM 2009), and no prior chemotherapy administration...
September 16, 2017: BJU International
https://www.readbyqxmd.com/read/28919775/investigation-of-proliferation-and-migration-of-tongue-squamous-cell-carcinoma-promoted-by-three-chemokines-mip-3%C3%AE-mip-1%C3%AE-and-ip-10
#20
Hongxing Chu, Bo Jia, Xiaoling Qiu, Jie Pan, Xiang Sun, Zhiping Wang, Jianjiang Zhao
The aim of this work was to investigate the role of chemokines in proliferation and migration of tongue squamous cell carcinoma (TSCC). Out of the 80 cytokines surveyed by a human cytokine antibody array, three chemokines, macrophage inflammatory protein-3α (MIP-3α), macrophage inflammatory protein-1β (MIP-1β), and interferon gamma-induced protein 10 (IP-10), showed elevated expression in TSCC cells (CAL-27 and UM-1), compared to the oral mucosal epithelial cells. Immunohistochemistry confirmed the high level of expression of MIP-3α in the TSCC tissues, especially in the high clinical stages...
2017: OncoTargets and Therapy
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