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Head neck cancer therapy

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https://www.readbyqxmd.com/read/29243047/role-of-%C3%AE-catenin-in-cisplatin-resistance-relapse-and-prognosis-of-head-and-neck-squamous-cell-carcinoma
#1
Souvick Roy, Madhabananda Kar, Shomereeta Roy, Arka Saha, Swatishree Padhi, Birendranath Banerjee
BACKGROUND: Head and neck squamous cell carcinoma (HNSCC) is one of the most common types of cancer in India with high incidence and rapid recurrence rates. Here, we aimed to investigate the role of β-catenin, a developmental pathway gene, in HNSCC therapy resistance, DNA damage response, recurrence and prognosis. METHODS: In total 80 HNSCC samples were included. Western blot, immunohistochemistry and qRT-PCR analyses were performed to assess β-catenin expression in the cut margin and tumor areas of each sample...
December 14, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/29241220/high-risk-human-papillomavirus-in-oral-cancer-clinical-implications
#2
Subuhi Yete, Wendy D'Souza, Dhananjaya Saranath
Oral cancer is the eleventh most common cancer globally, with well-established major risk factors of tobacco, areca nut, alcohol, and high-risk human papillomavirus (HR-HPV) types 16 and 18. HR-HPV16/18 are the etiologic agents of cervical cancers and a proportion of oropharyngeal cancers. HPV-associated oropharyngeal and oral cancers show better prognosis and response to therapy. However, the picture of HR-HPV16/18 and the clinical implications of oral cancers are not clear with the majority of reports combining oral cancer data with head and neck cancers...
December 15, 2017: Oncology
https://www.readbyqxmd.com/read/29232825/galectin-1-inhibitor-otx008-induces-tumor-vessel-normalization-and-tumor-growth-inhibition-in-human-head-and-neck-squamous-cell-carcinoma-models
#3
Nathan A Koonce, Robert J Griffin, Ruud P M Dings
Galectin-1 is a hypoxia-regulated protein and a prognostic marker in head and neck squamous cell carcinomas (HNSCC). Here we assessed the ability of non-peptidic galectin-1 inhibitor OTX008 to improve tumor oxygenation levels via tumor vessel normalization as well as tumor growth inhibition in two human HNSCC tumor models, the human laryngeal squamous carcinoma SQ20B and the human epithelial type 2 HEp-2. Tumor-bearing mice were treated with OTX008, Anginex, or Avastin and oxygen levels were determined by fiber-optics and molecular marker pimonidazole binding...
December 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29231907/activated-hgf-c-met-axis-in-head-and-neck-cancer
#4
REVIEW
Levi Arnold, Jonathan Enders, Sufi Mary Thomas
Head and neck squamous cell carcinoma (HNSCC) is a highly morbid disease. Recent developments including Food and Drug Administration (FDA) approved molecular targeted agent's pembrolizumab and cetuximab show promise but did not improve the five-year survival which is currently less than 40%. The hepatocyte growth factor receptor; also known as mesenchymal-epithelial transition factor (c-Met) and its ligand hepatocyte growth factor (HGF) are overexpressed in head and neck squamous cell carcinoma (HNSCC); and regulates tumor progression and response to therapy...
December 12, 2017: Cancers
https://www.readbyqxmd.com/read/29229598/cdkn2a-p16-deletion-in-head-and-neck-cancer-cells-is-associated-with-cdk2-activation-replication-stress-and-vulnerability-to-chk1-inhibition
#5
Mayur A Gadhikar, Jiexin Zhang, Li Shen, Xiayu Rao, Jing Wang, Mei Zhao, Nene N Kalu, Faye M Johnson, Lauren A Byers, John Heymach, Walter N Hittelman, Durga Udayakumar, Raj K Pandita, Tej K Pandita, Curtis R Pickering, Abena Redwood, Helen Piwnica-Worms, Katharina Schlacher, Mitchell J Frederick, Jeffrey N Myers
Checkpoint kinase inhibitors (CHKi) exhibit striking single agent activity in certain tumors, but the mechanisms accounting for hypersensitivity are poorly understood. We screened a panel of 49 established human head and neck squamous cell carcinoma (HNSCC) cell lines and report that nearly 20% are hypersensitive to CHKi monotherapy. Hypersensitive cells underwent early S-phase arrest at drug doses sufficient to inhibit greater than 90% of Chk1 activity. Reduced rate of DNA replication fork progression and chromosomal shattering were also observed, suggesting replication stress as a root causative factor in CHKi hypersensitivity...
December 11, 2017: Cancer Research
https://www.readbyqxmd.com/read/29229507/patient-reported-dry-mouth-instrument-comparison-and-model-performance-for-correlation-with-quality-of-life-in-head-and-neck-cancer-survivors
#6
Mona Kamal, David I Rosenthal, Stefania Volpe, Ryan P Goepfert, Adam S Garden, Katherine A Hutcheson, Karine A Al Feghali, Mohamed Ahmed Mohamed Meheissen, Salman A Eraj, Amy E Dursteler, Bowman Williams, Joshua B Smith, Jeremy M Aymard, Joel Berends, Aubrey L White, Steven J Frank, William H Morrison, Richard Cardoso, Mark S Chambers, Erich M Sturgis, Tito R Mendoza, Charles Lu, Abdallah S R Mohamed, Clifton D Fuller, G Brandon Gunn
PURPOSE: To identify a clinically meaningful cut-point for the single item dry mouth question of the MD Anderson Symptom Inventory-Head and Neck module (MDASI-HN). METHODS: Head and neck cancer survivors who had received radiation therapy (RT) completed the MDASI-HN, the University of Michigan Hospital Xerostomia Questionnaire (XQ), and the health visual analog scale (VAS) of the EuroQol Five Dimension Questionnaire (EQ-5D). The Bayesian information criteria (BIC) were used to test the prediction power of each tool for EQ-5D VAS...
December 8, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29229323/mri-based-assessment-of-3d-intrafractional-motion-of-head-and-neck-cancer-for-radiation%C3%A2-therapy
#7
Oliver J Gurney-Champion, Dualta McQuaid, Alex Dunlop, Kee H Wong, Liam C Welsh, Angela M Riddell, Dow-Mu Koh, Uwe Oelfke, Martin O Leach, Christopher M Nutting, Shreerang A Bhide, Kevin J Harrington, Rafal Panek, Kate L Newbold
PURPOSE: To determine the 3-dimensional (3D) intrafractional motion of head and neck squamous cell carcinoma (HNSCC). METHODS AND MATERIALS: Dynamic contrast-enhanced magnetic resonance images from 56 patients with HNSCC in the treatment position were analyzed. Dynamic contrast-enhanced magnetic resonance imaging consisted of 3D images acquired every 2.9 seconds for 4 minutes 50 seconds. Intrafractional tumor motion was studied in the 3 minutes 43 seconds of images obtained after initial contrast enhancement...
October 16, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29228626/boosting-the-effects-of-hyperthermia-based-anticancer-treatments-by-hsp90-inhibition
#8
Lianne E M Vriend, Nathalie van den Tempel, Arlene L Oei, Mike L'Acosta, Frederique J Pieterson, Nicolaas A P Franken, Roland Kanaar, Przemek M Krawczyk
Hyperthermia - application of supra-physiological temperatures to cells, tissues or organs - is a pleiotropic treatment that affects most aspects of cellular metabolism, but its effects on DNA are of special interest in the context of cancer research and treatment. Hyperthermia inhibits repair of various DNA lesions, including double-strand breaks (DSBs), making it a powerful radio- and chemosensitizer, with proven clinical efficacy in therapy of various types of cancer, including tumors of head and neck, bladder, breast and cervix...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29224824/circulating-tumour-cell-pd-l1-test-for-head-and-neck-cancers
#9
Arutha Kulasinghe, Liz Kenny, Chamindie Punyadeera
Immune checkpoint inhibitors have gained traction over the last few years in the treatment of metastatic/recurrent head and neck squamous cell carcinoma (HNSCC) patients. Monoclonal antibodies that block the programmed death 1 (PD-1) receptor and its major ligand, PD-L1, have shown durable responses and low toxicity profiles. There are currently no validated predictive biomarkers to select patients likely to respond to anti-PD-1/PD-L1 therapy to avoid unwanted side effects and to reduce healthcare expenditure...
December 2017: Oral Oncology
https://www.readbyqxmd.com/read/29224823/results-of-a-phase-ii-randomized-controlled-clinical-trial-comparing-efficacy-of-cabazitaxel-versus-docetaxel-as-second-line-or-above-therapy-in-recurrent-head-and-neck-cancer
#10
Amit Joshi, Vijay Patil, Vanita Noronha, Sachin Dhumal, Nikhil Pande, Arun Chandrasekharan, Siddharth Turkar, Hollis DSouza, Sameer Shrirangwar, Abhishek Mahajan, Supreeta Arya, Shashikant Juvekar, Atanu BhattaCharjee, Kumar Prabhash
BACKGROUND: Cabazitaxel has shown activity in squamous cancer cell lines and in taxane resistant cell lines. Hence we planned a phase 2 study to evaluate the efficacy of cabazitaxel against Docetaxel in recurrent head and neck cancer, post first line treatment. METHODS: This was a phase 2, investigator initiated, randomized controlled trial of Docetaxel (75 mg/m2) versus Cabazitaxel (20 mg/m2), in patients with head and neck cancer with ECOG performance status 0-2 who have been exposed to at least one line of chemotherapy, involving a sample size of 92 (46 per group)(CTRI/2015/06/005848)...
December 2017: Oral Oncology
https://www.readbyqxmd.com/read/29215771/p16-positivity-and-regression-grade-predict-survival-after-neoadjuvant-radiotherapy-of-oscc
#11
Christina Eder-Czembirek, Irene Sulzbacher, Thorsten Fuereder, Edgar Selzer
OBJECTIVES: Survival after preoperative radiotherapy in locally advanced head and neck squamous cell cancer is associated with pathological response. The prognostic importance of p16 expression in these patients has not been established yet. MATERIALS AND METHODS: Ninety-seven oral squamous cell carcinoma patients, treated preoperatively with radiotherapy in combination with chemotherapy or cetxuximab, were included in this retrospective analysis. Survival rates were estimated by the Kaplan-Meyer method...
December 7, 2017: Oral Diseases
https://www.readbyqxmd.com/read/29214640/management-of-head-and-neck-primary-unknown-squamous-cell-carcinoma-using-combined-positron-emission-tomography-computed-tomography-and-transoral-laser-microsurgery
#12
Victoria Kuta, Blair Williams, Matthew Rigby, Robert Hart, Jonathan Trites, Colin MacKay, S Mark Taylor
OBJECTIVES/HYPOTHESIS: The unknown primary of the neck is commonly encountered by the head and neck surgeon. Despite the exhaustive diagnostic tools employed in traditional detection protocols, many unknown primaries are not found, and the patient is subjected to wide-field radiation and chemotherapy during treatment. Localizing the primary tumor has demonstrated therapeutic benefits, improved quality of life, and overall survival. The authors' objective was to determine the efficacy of a new management protocol for unknown primaries of the head and neck...
December 7, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29210648/vitamins-for-cancer-prevention-and-treatment-an-insight
#13
A Jain, A Tiwari, A Verma, S K Jain
Over a few decades a strong interlink between oxidative damage and cancer has been investigated by various scientists across the world on the basis of epidemiological observations of the effects of fruits and vegetables used in the diet for cancer patients. Primarily, Vitamin C, Vitamin D and Vitamin E are reported to be involved in the amelioration of side effects which occur in chemotherapy and radiation therapy of lungs, stomach, prostate, colorectal, gastric head and neck cancers. The vitamins acting as antioxidant adjuvants are found to have apoptotic and anti-angiogenesis potential as well as inhibitory effects against metastasis in cancer cells...
December 4, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/29209918/molecular-classification-and-precision-therapy-of-cancer-immune-checkpoint-inhibitors
#14
Yingyan Yu
On May 23, 2017, the US Food and Drug Administration (FDA) approved a treatment for cancer patients with positive microsatellite instability-high (MSI-H) markers or mismatch repair deficient (dMMR) markers. This approach is the first approved tumor treatment using a common biomarker rather than specified tumor locations in the body. FDA previously approved Keytruda for treatment of several types of malignancies, such as metastatic melanoma, metastatic non-small-cell lung cancer, recurrent or metastatic head and neck cancer, refractory Hodgkin lymphoma, and urothelial carcinoma, all of which carry positive programmed death-1/programmed death-ligand 1 biomarkers...
December 5, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/29207704/opportunistic-microorganisms-in-oral-cavity-according-to-treatment-status-in-head-and-neck-cancer-patients
#15
Priyanka Soni, Rajendra Singh Parihar, Laxman Kumar Soni
Introduction: Cancer patients receiving chemotherapy and/or radiation therapy are prone to many predisposing factors like immunosuppression, imbalance in the oral flora, hypo-salivation and local tissue damage. Therefore, considered to be at higher risk for oral bacterial and fungal infection than the general population. Aim: To study oropharyngeal flora in head and neck cancer patients under treatment and to correlate their incidence according with Chemotherapy cycles and Radiochemotherapy...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207154/adipose-derived-stem-cell-conditioned-medium-attenuates-cisplatin-triggered-apoptosis-in-tongue-squamous-cell-carcinoma
#16
Yu-Jen Chiu, Jai-Sing Yang, Han-Shui Hsu, Chi-Han Tsai, Hsu Ma
Autologous fat grafting procedures have noted a markedly increased frequency, not only for cosmetic purposes, but also for deformities after head and neck cancer and breast cancer surgery. Carcinogenesis is always a major concern in cell therapy-related issues. However, there is no literature discussing this issue in head and neck squamous cell carcinoma patients. To evaluate the interaction of tongue cancer cells and adipose-derived stem cells, we performed a series of in vitro experiments. Our results demonstrated that cisplatin significantly reduced the viabilities of SCC‑25 and CAL‑27 cells in a concentration-dependent manner, but it had low cytotoxicity in cisplatin-resistant CAL‑27 (CAR) cells...
December 1, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29205620/interobserver-reliability-of-computed-tomographic-contouring-of-canine-tonsils-in-radation-therapy-treatment-planning
#17
Keiko Murakami, Nicholas J Rancilio, Jeannie Poulson Plantenga, George E Moore, Hock Gan Heng, Chee Kin Lim
In radiation therapy (RT) treatment planning for canine head and neck cancer, the tonsils may be included as part of the treated volume. Delineation of tonsils on computed tomography (CT) scans is difficult. Error or uncertainty in the volume and location of contoured structures may result in treatment failure. The purpose of this prospective, observer agreement study was to assess the interobserver agreement of tonsillar contouring by two groups of trained observers. Thirty dogs undergoing pre- and post-contrast CT studies of the head were included...
December 4, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29203116/diagnosis-and-management-of-metastatic-neoplasms-with-unknown-primary
#18
REVIEW
Tilmann Bochtler, Harald Löffler, Alwin Krämer
In cancer of unknown primary (CUP), metastases are clinically and histologically confirmed, but the primary tumor site remains elusive after extensive work-up. CUPs make up for 2-3% of all epithelial malignancies. The two prevailing histologies are adenocarcinomas and undifferentiated carcinomas, whereas squamous cell carcinomas, neuroendocrine carcinomas and rare histologies account for the remaining 10%. The diagnostic work-up in CUP relies strongly on a detailed immunohistological (IHC) analysis in order to characterize the tumor type, nowadays aided by molecular techniques...
November 26, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/29199660/a-study-of-changes-in-the-oral-fungal-flora-of-patients-on-radiotherapy-for-head-and-neck-malignancies-and-their-correlation-with-funguria-and-fungemia
#19
S Raj, D Sharma, P Mate, M R Capoor, K T Bhowmik
BACKGROUND: Patients of head and neck malignancies often develop oral mucositis and invite various pathogens to colonize over it. OBJECTIVES: The objective of this study is to identify the fungi isolated from patients undergoing radiotherapy (RT) for head and neck cancer, to determine the antifungal susceptibility of these isolates and to determine the time and week of fungal colonization. PATIENTS AND METHODS: Three specimens (throat, urine, and blood) were collected from each of the head and neck cancer patients, who were advised RT...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29199658/an-audit-and-analysis-of-different-causes-of-defaults-in-patients-receiving-radiation-for-head-and-neck-cancers-a-tertiary-regional-cancer-center-experience
#20
L Pujari, S Padhi, P Meher, A Tripathy
CONTEXT: Strict adherence and timely completion of the external beam radiation therapy (EBRT) schedule is an important prognostic factor in the survival of head and neck cancer patients. However, many patients are unable to complete the radiation treatment due to various reasons resulting in a poor outcome. AIMS: This study aims to study the pattern and various possible causes of defaults for possible intervention. SETTINGS AND DESIGN: A retrospective epidemiological analysis...
January 2017: Indian Journal of Cancer
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