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https://www.readbyqxmd.com/read/28636114/set-i2pp2a-overexpression-induces-phenotypic-molecular-and-metabolic-alterations-in-an-oral-keratinocyte-cell-line
#1
Lays M Sobral, Ricardo D Coletta, Luciane C Alberici, Carlos Curti, Andréia Machado Leopoldino
The multifunctional SET/I2PP2A protein is known to be overexpressed in head and neck squamous cell carcinoma. However, SET has been reported to have apparently conflicting roles in promoting cancer cell survival under oxidative stress conditions and preventing invasion and metastasis, complicating efforts to understand the contribution of SET to carcinogenesis. In the present study, we overexpressed SET in a spontaneously immortalized oral keratinocyte cell line (NOK-SI SET) and demonstrated that SET up-regulation alone was sufficient to transform cells...
June 21, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28633075/elective-unilateral-nodal-irradiation-in-head-and-neck-squamous-cell-carcinoma-a-paradigm-shift
#2
A Al-Mamgani, M Verheij, M W M van den Brekel
There is a long-standing convention to irradiate the great majority of head and neck squamous cell carcinoma (HNSCC) electively to both sides of the neck, to reduce the theoretically increased risk of contralateral regional failure (cRF). With the currently available diagnostic imaging techniques this treatment paradigm means, in our opinion, an overtreatment in considerable proportion of these patients. From all the published studies (n = 11, with 1116 patients treated in total), the incidence of cRF in patients with oropharyngeal cancer treated to one side of the neck is 2...
June 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28632724/oral-squamous-cell-carcinoma-patients-can-be-differentiated-from-healthy-individuals-with-label-free-serum-proteomics
#3
Mayank Saraswat, Antti Mäkitie, Rahul Agarwal, Sakari Joenväärä, Suvi Renkonen
BACKGROUND: No blood biomarkers to detect early oral cavity squamous cell carcinoma (OSCC) without clinical signs exist - diagnosis is solely based on histology of a visible tumour. Most OSCC patients are diagnosed at advanced stage, which leads to significant morbidity and poor survival. Our aim was to find the serum screening or detection biomarkers in OSCC. METHODS: Serum samples from patients with OSCC treated at the Department of Otorhinolaryngology - Head and Neck Surgery, Helsinki University Hospital (Finland) were collected...
June 20, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28626490/soft-tissue-sarcomas-in-the-head-and-neck-25-years-of-experience
#4
Juan Francisco Liuzzi, Maribel Da Cunha, Daniuska Salas, Saul Siso, Esteban Garriga
Sarcomas are infrequent and heterogeneous tumours. They represent 1-2% of all malignant neoplasms in adults and between 4% and 10% of head and neck cancers. METHODS: The research was retrospective, descriptive, and cross-sectional. RESULTS: A study population of 62 patients with a mean age of 44 years was obtained; the most frequent location was the soft tissues of the neck (25.3%) and the mean tumour size was 7.1 cm; the most frequent diagnosis was undifferentiated pleomorphic sarcoma (25...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28622889/turning-the-tide-clinical-utility-of-pd-l1-expression-in-squamous-cell-carcinoma-of-the-head-and-neck
#5
REVIEW
Astrid De Meulenaere, Tijl Vermassen, Sandrine Aspeslagh, Wouter Huvenne, Jo Van Dorpe, Liesbeth Ferdinande, Sylvie Rottey
The use of cytotoxic and/or targeted agents is the gold standard in first- and second-line treatment of metastatic head and neck cancer. Currently the focus of oncologic research is shifting to the implementation of immune checkpoint inhibitor regimens. Many trials are being performed evaluating the survival benefit of various PD-1/PD-L1 blocking antibodies in both solid and haematological malignancies. Also, evaluation of the predictive value of PD-L1 expression on tumour cells and immune cells is being explored...
July 2017: Oral Oncology
https://www.readbyqxmd.com/read/28619614/rapid-ex-vivo-examination-of-mohs-specimens-using-optical-coherence-tomography
#6
D Rashed, D Shah, A Freeman, R J Cook, C Hopper, C M Perrett
BACKGROUND: Mohs micrographic surgery (MMS) is an effective treatment for certain non-melanoma skin cancers. Optical coherence tomography (OCT) is a biomedical imaging modality that permits high-resolution imaging of the epidermis and dermis with the potential to detect both healthy tissue and tumour. OCT may also provide a means of detecting and differentiating between the various histological subtypes of basal cell carcinomas (BCC) in vivo. OBJECTIVE: The aim of this prospective ex vivo study was to evaluate the efficacy of OCT in recognising healthy and pathological margins of excised BCC lesions and detecting different BCC subtypes...
June 12, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28619056/ophthalmic-artery-occlusion-following-neuro-embolization-of-the-external-carotid-artery-a-case-report
#7
Ng Wei Loon, Balwant Singh Gendeh, Rozman Zakaria, Jemaima Che Hamzah, Norshamsiah Md Din
BACKGROUND: Embozene® is a new neuroembolizing microsphere used to reduce intraoperative bleeding for head and neck tumours. We report a case of iatrogenic ophthalmic artery occlusion after Embozene® embolization of the external carotid artery (ECA). CASE PRESENTATION: A 22-year-old African gentleman presented with left nasal obstruction and epistaxis for 2 years and was diagnosed with nasopharyngeal carcinoma. He subsequently underwent embolization of the maxillary branch of the left ECA using Embozene® Microspheres - 250 μm in size before endoscopic tumour excision to reduce intra-operative bleeding...
June 15, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28600969/prognostic-factors-and-treatment-outcomes-in-444-patients-with-mucosal-melanoma
#8
Markus V Heppt, Alexander Roesch, Benjamin Weide, Ralf Gutzmer, Friedegund Meier, Carmen Loquai, Katharina C Kähler, Anja Gesierich, Markus Meissner, Dagmar von Bubnoff, Daniela Göppner, Max Schlaak, Claudia Pföhler, Jochen Utikal, Lucie Heinzerling, Ioana Cosgarea, Jutta Engel, Renate Eckel, Alexander Martens, Laura Mirlach, Imke Satzger, Gabriele Schubert-Fritschle, Julia K Tietze, Carola Berking
BACKGROUND: Mucosal melanoma (MM) is a rare but diverse cancer entity. Prognostic factors are not well established for Caucasians with MM. PATIENTS AND METHODS: We analysed the disease course of 444 patients from 15 German skin cancer centres. Disease progression was determined with the cumulative incidence function. Survival times were estimated with the Kaplan-Meier method. Prognostic parameters were identified with multivariate Cox regression analysis. RESULTS: Common anatomic sites of primary tumours were head and neck (MMHN, 37...
June 7, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28600602/early-stage-minor-salivary-gland-adenoid-cystic-carcinoma-has-favourable-prognosis
#9
Hanna Hämetoja, Karoliina Hirvonen, Jaana Hagström, Ilmo Leivo, Kauko Saarilahti, Satu Apajalahti, Caj Haglund, Antti Mäkitie, Leif Bäck
The purpose of the study was to evaluate the long-term outcome of minor salivary and mucous gland (MiSG) adenoid cystic carcinoma (ACC) of the head and neck and to compare the results with earlier reports including our recently published series on major salivary gland (MaSG) ACC. The study comprised 68 MiSG ACCs operated during 1974-2012 at the Helsinki University Hospital, Helsinki, Finland. Medical records and histological samples were reviewed. Our previously published cohort comprising 54 MaSG ACCs during the years from 1974 to 2009 was used for comparison...
June 10, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28593386/prostate-specific-membrane-antigen-pet-imaging-and-immunohistochemistry-in-adenoid-cystic-carcinoma-%C3%AF-a-preliminary-analysis
#10
Thomas J W Klein Nulent, Robert J J van Es, Gerard C Krijger, Remco de Bree, Stefan M Willems, Bart de Keizer
BACKGROUND: Adenoid cystic carcinoma (AdCC) of the head and neck is an uncommon malignant epithelial tumour of the secretory glands. Many patients develop slowly growing local recurrence and/or distant metastasis, for which treatment options are limited. A retrospective analysis of 9 AdCC patients was conducted to analyse the visualization of AdCC on PSMA PET/CT and to investigate the expression of PSMA on primary, recurrent and metastatic AdCC tumour tissue using immunohistochemistry...
June 7, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28587135/rgd-binding-integrins-in-head-and-neck-cancers
#11
REVIEW
Hanadi Talal Ahmedah, Laurence H Patterson, Steven D Shnyder, Helen M Sheldrake
Alterations in integrin expression and function promote tumour growth, invasion, metastasis and neoangiogenesis. Head and neck cancers are highly vascular tumours with a tendency to metastasise. They express a wide range of integrin receptors. Expression of the αv and β1 subunits has been explored relatively extensively and linked to tumour progression and metastasis. Individual receptors αvβ3 and αvβ5 have proved popular targets for diagnostic and therapeutic agents but lesser studied receptors, such as αvβ6, αvβ8, and β1 subfamily members, also show promise...
May 26, 2017: Cancers
https://www.readbyqxmd.com/read/28583625/residual-tumour-detection-in-post-treatment-granulation-tissue-by-using-advanced-diffusion-models-in-head-and-neck-squamous-cell-carcinoma-patients
#12
Noriyuki Fujima, Daisuke Yoshida, Tomohiro Sakashita, Akihiro Homma, Kohsuke Kudo, Hiroki Shirato
PURPOSE: To evaluate the detectability of the residual tumour in post-treatment granulation tissue using parameters obtained with an advanced diffusion model in patients with head and neck squamous cell carcinoma (HNSCC) treated by chemoradiation therapy. MATERIALS AND METHODS: We retrospectively evaluated 23 patients with HNSCC after the full course of chemoradiation therapy. The diffusion-weighted image (DWI) acquisition used single-shot spin-echo echo-planar imaging with 11 b-values (0-1000)...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28579578/the-t-box-transcription-factor-3-in-development-and-cancer
#13
Tarryn Willmer, Aretha Cooper, Jade Peres, Rehana Omar, Sharon Prince
T-box factors comprise an archaic family of evolutionary conserved transcription factors that regulate patterns of gene expression essential for embryonic development. The T-box transcription factor 3 (TBX3), a member of this family, is expressed in several tissues and plays critical roles in, among other structures, the heart, mammary gland and limbs and haploinsufficiency of the human TBX3 gene is the genetic basis for the autosomal dominant disorder, ulnar-mammary syndrome. Overexpression of TBX3 on the other hand has been linked to several cancers including melanoma, breast, pancreatic, liver, lung, head and neck, ovarian, bladder carcinomas and a number of sarcoma subtypes...
June 4, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28579265/importance-of-chewing-saliva-and-swallowing-function-in-patients-with-advanced-oral-cancer-undergoing-preoperative-chemoradiotherapy-a-prospective-study-of-quality-of-life
#14
D Nemeth, L Zaleczna, A Huremovic, J Engelmann, P W Poeschl, M Strasz, S Holawe, G Kornek, A Laskus, C Sacher, B M Erovic, C Perisanidis
The primary objective of this study was to investigate the quality of life (QOL) of patients with oral squamous cell carcinoma (OSCC) undergoing curative neoadjuvant chemoradiotherapy followed by radical tumour resection and simultaneous oral cavity reconstruction, using two validated questionnaires. A secondary objective was to assess clinical variables predicting post-treatment dysfunction in chewing, saliva, and swallowing. Thirty-five patients with locally advanced OSCC who underwent preoperative chemoradiotherapy were recruited prospectively...
June 1, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28578604/does-palliative-chemotherapy-provide-a-palliative-effect-on-symptoms-in-late-palliative-stages-an-interview-study-with-oncologists
#15
Peter Strang, Jenny Bergqvist
BACKGROUND: The possible chemotherapy effects on symptoms in late stages of palliative chemotherapy are seldom registered in clinical practice or investigated as primary outcomes. The aim was therefore to study physicians' opinions and experiences about chemotherapy effects on symptoms. MATERIAL AND METHODS: Thirty-five physicians (mainly oncologists) with variation as regards age, gender and experience were included in a qualitative study with semi-structured interviews...
June 3, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28578308/an-unusual-position-of-retromandibular-vein-a-surgical-challenge-in-parotid-surgeries
#16
Prasanna Kumar Saravanam, Vinoth Manimaran
A 44-year-old man presented with swelling in the left parotid region. The swelling was firm and Fine Needle Aspiration Cytology report proved pleomorphic adenoma. In the CT scan, the tumour was confined to the superficial lobe of parotid. So, left superficial parotidectomy was planned. Modified Wilson Blair's incision was used. On course of identifying the facial nerve, a large calibre vein was identified running vertically through the parotid substance. Assuming it as retromandibular vein, further dissection was carried out more meticulously...
June 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28571578/immunotherapy-in-head-and-neck-cancer-aiming-at-extreme-precision
#17
Petr Szturz, Jan B Vermorken
BACKGROUND: Locoregionally advanced, recurrent, and metastatic squamous cell carcinomas of the head and neck (SCCHN) remain difficult to treat disease entities, in which systemic treatment often forms an integral part of their management. Immunotherapy is based on functional restoration of the host immune system, helping to counteract various tumour evasion strategies. Broadly, immunotherapeutic approaches encompass tumour-specific antibodies, cancer vaccines, cytokines, adoptive T-cell transfer, and immune-modulating agents...
June 2, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28571292/oral-spindle-cell-sarcoma-a-rare-case-report-and-review-of-literature
#18
Sujatha S Reddy, Shivani Sharma, Vijaya Mysorekar, Pushpanjali Sharma, Aninditya Kaur
Spindle cell lesions of the head and neck region are diverse in nature by means of clinical and biological heterogeneity. Though few lesions are found to be malignant, several others are benign or merely reactive in nature. Although these lesions are fairly common occurring in other parts of the body, they are very rare in the oral cavity, accounting for less than 1% of all tumours in the oral region. Herein, a case of 48-year-old man who presented with a polypoid lesion of the maxilla has been reported. Histopathological examination and immunohistochemistry revealed spindle cell sarcoma of the left maxillary sinus...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28571176/juvenile-nasopharyngeal-angiofibroma-a-case-report
#19
Soubhagini Acharya, Choubarga Naik, Siddharth Panditray, Subha Soumya Dany
Juvenile nasopharyngeal angiofibroma is tumour almost exclusively seen in adolescent males, constituting less than 1% of all neoplasms in head and neck. They are benign and locally spreading and are highly vascular in nature and thus prove to be a surgical challenge because of its complex anatomical location. Here, we present a case report of a 18-year-old male presenting with a mass in his left nasal cavity, with recurrent epistaxis and nasal obstruction. Computed tomography imaging revealed a non-encapsulated lobulated heterogeneous mass lesion in the naso-pharynx and left posterior choana of the nasal cavity, extending to pterygopalatine and infratemporal fossa, masseter space of left side...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28559024/prediction-of-distant-metastases-from-nasopharyngeal-carcinoma-improved-diagnostic-performance-of-mri-using-nodal-volume-in-n1-and-n2-stage-disease
#20
Qi-Yong Ai, Ann D King, Frankie K F Mo, Benjamin King Hong Law, Kunwar S Bhatia, Brigette B Ma, Darren M C Poon, Michael K M Kam
PURPOSE: To determine if the magnetic resonance imaging (MRI) of the head and neck can predict distant metastases (DM) from nasopharyngeal carcinoma (NPC). METHODS AND MATERIALS: MRI examinations of 763 NPC patients were assessed for primary tumour stage (T), nodal stage (N), primary tumour volume (PTV) and total nodal volume (NV). The association between MRI and clinical parameters were examined in DM+ and DM- patients using logistic regression and for distant metastases free survival (DMFS) using cox regression...
June 2017: Oral Oncology
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