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https://www.readbyqxmd.com/read/28547946/ccr7-and-cxcr4-expression-in-primary-head-and-neck-squamous-cell-carcinomas-and-nodal-metastases-%C3%A2-a-clinical-and-immunohistochemical-study
#1
Maya Al-Jokhadar, Ahmad Al-Mandily, Khaled Zaid, Elie Azar Maalouf
Background: Squamous cell carcinomas (SCCs) are common head and neck malignancies demonstrating lymph node LN involvement. Recently chemokine receptor overxpression has been reported in many cancers. Of particular interest, CCR7 appears to be a strong mediator of LN metastases, while CXCR4 may mediate distant metastases. Any relations between their expression in primary HNSCCs and metastatic lymph nodes need to be clarified. Aims: To investigate CCR7 andCXCR4 expression in primary HNSCCs of all tumor sizes, clinical stages and histological grades, as well as involved lymph nodes, then make comparisons, also with control normal oral epithelium...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28547940/cytotoxic-activity-of-propolis-extracts-from-the-stingless-bee-trigona-sirindhornae-against-primary-and-metastatic-head-and-neck-cancer-cell-lines
#2
Kusumawadee Utispan, Bordin Chitkul, Sittichai Koontongkaew
Background: Propolis, a resinous substance produced by the honeybee, has a wide spectrum of potent biological activities. However, anti-cancer activity of propolis obtained from Trigona sirindhornae, a new species of stingless bee, has not yet been reported. This study concerned cytotoxicity of propolis extracts from T. sirindhornae against two head and neck squamous cell carcinoma (HNSCC) cell lines. Materials and Methods: A dichloromethane extract of propolis (DMEP) was prepared generating 3 fractions: DMEP-A, DMEP-B, and DMEP-C...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545184/frequency-of-human-papillomavirus-hpv-16-and-18-detection-in-paraffin-embedded-laryngeal-carcinoma-tissue
#3
Seyed Zinab Hosseini, Manoochehr Makvandi, Alireza Samarbafzade, Ali Timori, Nastaran Ranjbar, Nader Saki, Nilofar Nisi, Toran Shahani, Mehran Varnaseri, Kambiz Angali Ahmadi
Background and Objective: Human papilloma virus (HPV) 16 and HPV18 have been detected in head and neck squamous cell carcinomas (HNSCC) and there is evidence that detection of HPVs would have better prognostic value than patients with HNSCC negative for HPVs. Thus, this study was conducted to evaluate frequency of HPV 16 and HPV 18 genotypes in patients with laryngeal carcinoma. Materials and methods: Fifty formalin-fixed, paraffin-embedded (FFPE) tissue blocks of laryngeal cancers were collected. Sections were prepared at 5 μm and DNA was extracted from each sample and subjected to the polymerase chain reaction (PCR) to detect HPV-16/18 DNA s...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545054/an-optimized-small-animal-tumour-model-for-experimentation-with-low-energy-protons
#4
Elke Beyreuther, Kerstin Brüchner, Mechthild Krause, Margret Schmidt, Rita Szabo, Jörg Pawelke
BACKGROUND: The long-term aim of developing laser based particle acceleration towards clinical application requires not only substantial technological progress, but also the radiobiological characterization of the resulting ultra-short and ultra-intensive particle beam pulses. After comprehensive cell studies a mouse ear tumour model was established allowing for the penetration of low energy protons (~20 MeV) currently available at laser driven accelerators. The model was successfully applied for a first tumour growth delay study with laser driven electrons, whereby the need of improvements crop out...
2017: PloS One
https://www.readbyqxmd.com/read/28543072/obstructive-sleep-apnea-in-the-irradiated-head-and-neck-cancer-patient
#5
Phillip Huyett, Seungwon Kim, Jonas T Johnson, Ryan J Soose
OBJECTIVES/HYPOTHESIS: To assess the prevalence of obstructive sleep apnea (OSA) in head and neck cancer (HNSCC) patients treated with radiation therapy. STUDY DESIGN: Prospective case series without comparison group. METHODS: Patients who underwent radiation therapy for oropharyngeal or laryngeal squamous cell carcinoma completed a 3-night home sleep test (HST), Epworth Sleepiness Scale, Functional Outcomes of Sleep Questionnaire, and University of Washington Quality of Life questionnaire...
May 23, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28542679/patterns-of-treatment-failure-and-postrecurrence-outcomes-among-patients-with-locally-advanced-head-and-neck-squamous-cell-carcinoma-after-chemoradiotherapy-using-modern-radiation-techniques
#6
Jonathan E Leeman, Jin-Gao Li, Xin Pei, Praveen Venigalla, Zachary S Zumsteg, Evangelia Katsoulakis, Eitan Lupovitch, Sean M McBride, Chiaojung J Tsai, Jay O Boyle, Benjamin R Roman, Luc G T Morris, Lara A Dunn, Eric J Sherman, Nancy Y Lee, Nadeem Riaz
Importance: Even though 15% to 50% of patients with head and neck squamous cell carcinoma (HNSCC) experience recurrence, relatively little is known regarding patterns of treatment failure and postrecurrence outcomes after chemoradiotherapy using modern radiation techniques (intensity-modulated radiotherapy [IMRT]). Recurrence patterns are significantly affected by variations in the quality of radiotherapy, which may confound findings from multicenter trials. Objective: To assess patterns of treatment failure and postrecurrence outcomes for patients with HNSCC treated with contemporary radiotherapy techniques...
May 25, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28540535/prognostic-value-of-maximum-standardized-uptake-value-measured-by-pretreatment-18f-fdg-pet-ct-in-locally-advanced-head-and-neck-squamous-cell-carcinoma
#7
J Cacicedo, I Fernandez, O Del Hoyo, A Navarro, A Gomez-Iturriaga, J Ignacio Pijoan, L Martinez-Indart, J Escudero, J Gomez-Suarez, R Ortiz de Zarate, J Fernando Perez, P Bilbao, D Rades
PURPOSE/OBJECTIVES: To evaluate the prognostic impact of maximum standardized uptake value (SUVmax) in patients with locally advanced head and neck squamous cell carcinoma (HNSCC) undergoing pretreatment [F-18] fluoro-D-glucose-positron emission tomography/computed tomography (FDG PET/CT) imaging. MATERIALS/METHODS: Fifty-eight patients undergoing FDG PET/CT before radical treatment with definitive radiotherapy (±concomitant chemotherapy) or surgery + postoperative (chemo)radiation were analyzed...
May 24, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28539202/detection-of-residual-head-and-neck-squamous-cell-carcinoma-after-chemo-radiotherapy-a-pilot-study-assessing-the-value-of-diffusion-weighted-magnetic-resonance-imaging-as-an-adjunct-to-pet-ct-using-18-f-fdg
#8
Daniel P Noij, Viresh A Jagesar, Pim de Graaf, Marcus C de Jong, Otto S Hoekstra, Remco de Bree, Jonas A Castelijns
OBJECTIVE: Diagnosing residual malignancy after (chemo)radiotherapy presents a diagnostic challenge because of overlapping symptoms and imaging characteristics. We assessed the added diagnostic value of diffusion-weighted imaging (DWI) to positron emission tomography combined with computed tomography (PET-CT) in patients with head and neck squamous cell carcinoma (HNSCC) with residual fluorodeoxyglucose ((18)F-FDG) uptake at the primary tumor site 3 months after (chemo)radiotherapy. STUDY DESIGN: For this retrospective study from January 2010 to June 2012, 22 cases (median patient age of 61 years; range 41-77 years) were included for analysis...
May 3, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28535013/htert-c250t-promoter-mutation-and-telomere-length-as-a-molecular-markers-of-cancer-progression-in-patients-with-head-and-neck-cancer
#9
Wojciech Barczak, Wiktoria M Suchorska, Agnieszka Sobecka, Karolina Bednarowicz, Piotr Machczynski, Pawel Golusinski, Blazej Rubis, Michal M Masternak, Wojciech Golusinski
Squamous cell carcinoma of the head and neck (HNSCC) is the sixth leading cause of cancer worldwide, representing over half a million incidents every year. Cancer cells, including HNSCC, are characterized by increased telomerase activity. This enzymatic complex is active in ~90% of all cancer types and is responsible for the lengthening of telomeres. Highly recurrent point mutations in the human telomerase reverse transcriptase (hTERT) promoter have recently been reported in a number of human neoplasms. The aim of the present study was to analyze the prevalence of the hTERT promoter C250T mutation and telomere length in the blood leukocytes of 61 patients with HNSCC and 49 healthy individuals...
May 17, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28533473/u-s-food-and-drug-administration-approval-summary-pembrolizumab-for-the-treatment-of-recurrent-or-metastatic-head-and-neck-squamous-cell-carcinoma-with-disease-progression-on-or-after-platinum-containing-chemotherapy
#10
Erin Larkins, Gideon M Blumenthal, Weishi Yuan, Kun He, Rajeshwari Sridhara, Sriram Subramaniam, Hong Zhao, Chao Liu, Jingyu Yu, Kirsten B Goldberg, Amy E McKee, Patricia Keegan, Richard Pazdur
On August 5, 2016, the U.S. Food and Drug Administration granted accelerated approval to pembrolizumab (KEYTRUDA injection, Merck Sharp & Dohme Corp., Kenilworth, NJ) for treatment of patients with recurrent or metastatic head and neck squamous cell carcinoma (HNSCC) with disease progression on or after platinum-containing chemotherapy. Approval was based on the objective response rate (ORR) and duration of response (DoR) in a cohort of patients in a nonrandomized multi-cohort trial (KEYNOTE-012) that included 174 patients with recurrent or metastatic HNSCC who had disease progression on or after platinum-containing chemotherapy...
May 22, 2017: Oncologist
https://www.readbyqxmd.com/read/28525901/direct-inhibition-of-stat-signaling-by-platinum-drugs-contributes-to-their-anti-cancer-activity
#11
Stanleyson V Hato, Carl G Figdor, Susumu Takahashi, Anja E Pen, Altuna Halilovic, Kalijn F Bol, Angela Vasaturo, Yukie Inoue, Nienke de Haas, Dagmar Verweij, Carla M L Van Herpen, Johannes H Kaanders, Johan H J M van Krieken, Hanneke W M Van Laarhoven, Gerrit K J Hooijer, Cornelis J A Punt, Akira Asai, I Jolanda M de Vries, W Joost Lesterhuis
Platinum-based chemotherapeutics are amongst the most powerful anti-cancer drugs. Although their exact mechanism of action is not well understood, it is thought to be mediated through covalent DNA binding. We investigated the effect of platinum-based chemotherapeutics on signaling through signal transducer and activator of transcription (STAT) proteins, which are involved in many oncogenic signaling pathways. We performed in vitro experiments in various cancer cell lines, investigating the effects of platinum chemotherapeutics on STAT phosphorylation and nuclear translocation, the expression of STAT-modulating proteins and downstream signaling pathways...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28522603/smad4-loss-is-associated-with-cetuximab-resistance-and-induction-of-mapk-jnk-activation-in-head-and-neck-cancer-cells
#12
Hiroyuki Ozawa, Ruchira Ranaweera, Evgeny Izumchenko, Eugene Makarev, Alex Zhavoronkov, Elana J Fertig, Jason D Howard, Ana Markovic, Atul Bedi, Rajani Ravi, Jimena Perez, Quynh-Thu Le, Christina S Kong, Richard C K Jordan, Hao Wang, Hyunseok Kang, Harry Quon, David Sidransky, Christine H Chung
Purpose: We previously demonstrated an association between decreased SMAD4 expression and cetuximab resistance in head and neck squamous cell carcinoma (HNSCC). The purpose of this study was to further elucidate the clinical relevance of SMAD4 loss in HNSCC. Experimental Design: SMAD4 expression was assessed by immunohistochemistry in 130 newly diagnosed and 43 recurrent HNSCC patients. Correlative statistical analysis with clinicopathological data was also performed. OncoFinder, a bioinformatics tool, was used to analyze molecular signaling in TCGA tumors with low or high SMAD4 mRNA levels...
May 18, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28521433/effect-of-selective-small-molecule-inhibitors-on-mmp-9-and-vegfr-1-expression-in-p16-positive-and-negative-squamous-cell-carcinoma
#13
Benedikt Kramer, Johannes David Schultz, Clemens Hock, Alexander Sauter, Boris A Stuck, Karl Hörmann, Richard Birk, Christoph Aderhold
The identification of molecular targets in the therapy of human papilloma virus (HPV)-associated head and neck squamous cell carcinoma (HNSCC) is a primary aim of cancer research. Matrix metalloproteinase 9 (MMP-9) and vascular endothelial growth factor receptor (VEGFR) have important roles in the development of HNSCC. The tyrosine kinase inhibitors, nilotinib, dasatinib, erlotinib and gefitinib are well established in the targeted therapy of tumors other than HNSCC. The present study aimed to investigate the alteration of MMP-9 and VEGFR-1 expression patterns following treatment with these tyrosine kinase inhibitors in p16-positive and -negative squamous carcinoma cells...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28515412/utility-of-a-hybrid-ivim-dki-model-to-predict-the-development-of-distant-metastasis-in-head-and-neck-squamous-cell-carcinoma-patients
#14
Noriyuki Fujima, Tomohiro Sakashita, Akihiro Homma, Daisuke Yoshida, Kohsuke Kudo, Hiroki Shirato
PURPOSE: To evaluate the diagnostic power of hybrid intravoxel incoherent motion (IVIM)-diffusion kurtosis imaging (DKI) model parameters in pretreatment for the prediction of future distant metastasis in head and neck squamous cell carcinoma (HNSCC) patients. MATERIALS AND METHODS: We retrospectively evaluated 49 HNSCC patients who underwent curative chemoradiation therapy. Diffusion-weighted image (DWI) acquired by single-shot spin-echo echo-planar imaging with 12 b-values (0-2000) was performed in all patients before any treatment...
May 18, 2017: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/28515105/free-circulating-methylated-dna-in-blood-for-diagnosis-staging-prognosis-and-monitoring-of-head-and-neck-squamous-cell-carcinoma-patients-an-observational-prospective-cohort-study
#15
Andreas Schröck, Annette Leisse, Luka de Vos, Heidrun Gevensleben, Freya Dröge, Alina Franzen, Malin Wachendörfer, Friederike Schröck, Joerg Ellinger, Marcus Teschke, Timo Wilhelm-Buchstab, Jennifer Landsberg, Stefan Holdenrieder, Gunther Hartmann, John K Field, Friedrich Bootz, Glen Kristiansen, Dimo Dietrich
BACKGROUND: Circulating cell-free DNA methylation testing in blood has recently received regulatory approval for screening of colorectal cancer. Its application in other clinical settings, including staging, prognosis, prediction, and recurrence monitoring is highly promising, and of particular interest in head and neck squamous cell carcinomas (HNSCC) that represent a heterogeneous group of cancers with unsatisfactory treatment guidelines. METHODS: Short stature homeobox 2 (SHOX2) and septin 9 (SEPT9) DNA methylation in plasma from 649 prospectively enrolled patients (training study: 284 HNSCC/122 control patients; testing study: 141 HNSCC/102 control patients) was quantified before treatment and longitudinally during surveillance...
May 17, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28508843/acoustic-analysis-of-voice-in-nonlaryngeal-head-and-neck-cancer-patients-post-chemoradiotherapy
#16
Nikhila Radhakrishna, B K Yamini, Amrut Sadashiv Kadam, N Shivashankar, Chendil Vishwanathan, Rajesh Javarappa
BACKGROUND: Concurrent chemoradiotherapy (CCRT) used for definitive management of locally advanced head and neck squamous cell carcinoma (HNSCC) allows organ preservation at the cost of preservation of function. Vocal cords, being within the field of irradiation, undergo acute and chronic changes which adversely impacts the patients' voice. AIMS: To assess the acute changes in the acoustic characteristics of voice post-CCRT in patients with nonlaryngeal HNSCC. MATERIALS AND METHODS: Thirty patients with HNSCC treated with CCRT, a total dose of 66-70 Gy/33-35 fractions at five fractions/week, with weekly cisplatin...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28507307/a-novel-indication-for-panobinostat-as-a-senolytic-drug-in-nsclc-and-hnscc
#17
Leleesha Samaraweera, Alfred Adomako, Alicia Rodriguez-Gabin, Hayley M McDaid
Panobinostat (pano) is an FDA-approved histone deacetylase inhibitor. There is interest in evaluating alternate dosing schedules and novel combinations of pano for the treatment of upper aerodigestive and lung malignancies; thus we evaluated it in combination with Taxol, a chemotherapeutic with activity in both diseases. Dose-dependent synergy was observed in Non-Small Cell Lung Cancer (NSCLC) and Head and Neck Squamous Cell Carcinoma (HNSCC) cell lines and was due to senescence rather than potentiation of cell death...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28499703/mir-375-regulates-invasion-related-proteins-vimentin-and-l-plastin
#18
Lizandra Jimenez, Jihyeon Lim, Berta Burd, Thomas M Harris, Thomas J Ow, Nicole Kawachi, Thomas J Belbin, Ruth Angeletti, Michael B Prystowsky, Geoffrey Childs, Jeffrey E Segall
Invasion is a hallmark of advanced head and neck squamous cell carcinoma (HNSCC). We previously determined that low relative miR-375 expression was associated with poor patient prognosis. HNSCC cells with increased miR-375 expression have lower invasive properties and impaired invadopodium activity. Using stable isotope labeling with amino acids in cell culture and reverse-phase liquid chromatography mass spectrometry, we assessed the impact of miR-375 expression on protein levels in UM-SCC-1 cells. Increased miR-375 expression was associated with down-regulation of proteins involved in cellular assembly and organization, death and survival, and movement...
May 10, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28494171/zinc-oxide-nanoparticles-antagonize-the-effect-of-cetuximab-on-head-and-neck-squamous-cell-carcinoma-in-vitro
#19
Thomas Gehrke, Agmal Scherzad, Pascal Ickrath, Philipp Schendzielorz, Rudolf Hagen, Norbert Kleinsasser, Stephan Hackenberg
Zinc oxide nanoparticles (ZnO-NPs) are being used in many cosmetic products and have been shown to induce tumor-selective cell death in human head and neck squamous cell carcinoma (HNSCC) in vitro. Cetuximab is a monoclonal antibody directed against the epidermal growth factor receptor (EGFR), whose effectiveness for HNSCC, alone or in combination with cytostatic drugs, has been demonstrated intensively in the last decades. Nanoparticles are known to interact with protein structures and thus may influence their functionality...
May 11, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28494008/blocking-of-stromal-interaction-molecule-1-expression-influence-cell-proliferation-and-promote-cell-apoptosis-in-vitro-and-inhibit-tumor-growth-in-vivo-in-head-and-neck-squamous-cell-carcinoma
#20
Ping Li, Xue-Yan Bian, Qing Chen, Xiao-Feng Yao, Xu-Dong Wang, Wen-Chao Zhang, Ying-Jie Tao, Rui Jin, Lun Zhang
Calcium signal plays an important role in a variety of cancer cell metabolism, but knowledge on its role in head and neck squamous cell carcinoma (HNSCC) is limited. Store-operated calcium entry (SOCE) is the principal Ca2+ entry mechanism that maintains calcium concentration and produces calcium signal in non-excitable cells. SOCE is triggered by stromal interaction molecule 1 (STIM1), which is located in endoplasmic reticulum (ER) as Ca2+ sensor. Although, many studies demonstrated that STIM1 and SOCE play important functions in the regulation of many cancer progressions, their clinical relevance in HNSCC remains unclear...
2017: PloS One
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