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https://www.readbyqxmd.com/read/28105355/evaluation-of-prognostic-markers-for-patients-with-curatively-resected-thoracic-esophageal-squamous-cell-carcinomas
#1
Masahide Ikeguchi, Yusuke Kouno, Kyoichi Kihara, Kazunori Suzuki, Kanenori Endo, Seiichi Nakamura, Takashi Sawada, Tetsu Shimizu, Tomoyuki Matsunaga, Yoji Fukumoto, Hiroaki Saito
The Glasgow Prognostic Score (GPS), neutrophil/lymphocyte ratio (NLR) and prognostic nutritional index (PNI) are prognostic parameters for malignancies. Additionally, serum squamous cell carcinoma antigen (SCC-Ag) and cytokeratin 19 fragments (CYFRA 21-1) are tumor markers for squamous cell carcinoma. In the present study, the prognostic importance of these markers in patients with resectable thoracic esophageal cancer was investigated. In this retrospective study, 84 enrolled patients diagnosed with resectable clinical stage I-III thoracic esophageal squamous cell carcinomas (ESCCs) underwent thoracic esophageal resection and three-field lymph node dissection at Tottori University Hospital between January 2007 and December 2013...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28105174/improved-sensitization-effect-of-sunitinib-in-cancer-cells-of-the-esophagus-under-hypoxic-microenviroment
#2
Yu-Qiong Ding, Qin Qin, Yan Yang, Xin-Chen Sun, Xi Yang, Hong-Cheng Zhu, Xiao-Chen Chen, Hao Zhang, Yue-Hua Yang, Lei Gao, Ju-Dong Luo, Xi-Fa Zhou
Radiotherapy is widely used in esophageal squamous cell carcinoma (ESCC) treatment. Promoting the radiation sensitivity of cancer cells is required. Recent studies have shown that sunitinib can inhibit the growth of several cancer lines. However, few studies on the radiosensitive effect of sunitinib on ESCC cells under hypoxic conditions have been conducted. In the present study, the radiosensitive effects of sunitinib on human ESCC cells were assessed, and the underlying mechanisms were explored. ESCC cells were exposed to hypoxia and treated with sunitinib at different concentrations prior to irradiation...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28104797/not-all-esophageal-tumors-equal
#3
(no author information available yet)
Although squamous cell carcinomas and adenocarcinomas of the esophagus differ histologically, they are often lumped together in clinical trials. Genomic analysis shows that the two cancers are molecularly distinct. Esophageal adenocarcinomas are more similar to stomach adenocarcinomas, whereas esophageal squamous cell carcinomas are closer to head and neck squamous cell carcinomas.
January 19, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28096828/intramural-esophageal-tumors
#4
Mariusz P Łochowski, Katarzyna Kozak, Marek Rębowski, Józef Kozak
INTRODUCTION: Intramural esophageal tumors (IET) are located between unchanged mucous membrane and muscularis mucosae. They can be both benign and malignant. AIM: To evaluate diagnostic and therapeutic difficulties of IET. MATERIAL AND METHODS: During the years 2010-2015, 11 patients with IET were treated in our clinic. Diagnostics included gastroscopy, computed tomography of the chest, endoscopic ultrasound (EUS) guided fine needle biopsy, and positron emission tomography (PET) of the esophagus in cases with no histopathological confirmation...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28092101/the-cross-regulation-between-sox15-and-wnt-signaling-pathway
#5
REVIEW
Ali Moradi, Faezeh Ghasemi, Kazem Anvari, Seyed Mahdi Hassanian, Saeideh Ahmadi Simab, Safieh Ebrahimi, Amirreza Hesari, Mohammad Mahdi Forghanifard, Mohammad Taher Boroushaki, Soodabeh ShahidSales, Amir Avan
WNT/B-CATENIN signaling pathway is one of the key dysregulated pathways in different tumor types, which regulate the expression of several genes involved in cell proliferation, differentiation, and survival. This pathway is being modulated by sex-determining region Y-box (SOX) family genes. The functions of these genes are suggested as tumor suppressor or oncogene. SOX genes transcribe a group of transcription factors that play important roles in embryonic development and carcinogenesis. Among them, SOX15 is recently been identified as a novel tumor suppressor in pancreatic and esophagus cancers with a potential role in modulating Wnt/b-catenin signaling...
January 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28088233/successful-recovery-from-a-subclavicular-ulcer-caused-by-lenvatinib-for-thyroid-cancer-a-case-report
#6
Morimasa Kitamura, Tomomasa Hayashi, Chiaki Suzuki, Shigeru Hirano, Ichiro Tateya, Yo Kishimoto, Koichi Omori
BACKGROUND: There are currently no effective therapeutic methods for locally recurrent, metastatic, or progressive radioactive iodine (RAI)-refractory differentiated thyroid cancer. However, multitargeted tyrosine kinase inhibitors (TKIs) such as lenvatinib or sorafenib have been approved for patients with RAI-refractory differentiated thyroid cancer as a second targeted therapy, and these agents can prolong patient survival. However, several cases have been reported that TKIs have caused fatal complications such as fistula formation or bleeding...
January 14, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28086818/narrow-band-imaging-versus-lugol-chromoendoscopy-to-diagnose-squamous-cell-carcinoma-of-the-esophagus-a-systematic-review-and-meta-analysis
#7
Flavio Hiroshi Ananias Morita, Wanderley Marques Bernardo, Edson Ide, Rodrigo Silva Paula Rocha, Julio Cesar Martins Aquino, Mauricio Kazuyoshi Minata, Kendi Yamazaki, Sergio Barbosa Marques, Paulo Sakai, Eduardo Guimarães Hourneaux de Moura
BACKGROUND: In the early stage esophageal cancer, changes in the mucosa are subtle and pass unnoticed in endoscopic examinations using white light. To increase sensitivity, chromoscopy with Lugol's solution has been used. Technological advancements have led to the emergence of virtual methods of endoscopic chromoscopy, including narrow band imaging (NBI). NBI enhances the relief of the mucosa and the underlying vascular pattern, providing greater convenience without the risks inherent to the use of vital dye...
January 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28078471/effects-of-estrogen-on-esophageal-function-through-regulation-of-ca-2-related-proteins
#8
Kipung Kim, Dongoh Lee, Changhwan Ahn, Hee Young Kang, Beum-Soo An, Yeon Hee Seong, Eui-Bae Jeung
BACKGROUND: The calcium ion is important for physiological functions in all tissues and organs and essential to many vital functions, including hormone secretion and muscle contraction. The intracellular concentration of calcium is regulated by calcium related proteins such as CaBP-9k, PMCA1, and NCX1. In this study, we investigated the relationship between calcium regulation and esophageal functions such as mucin secretion and smooth muscle contraction. METHODS: To evaluate the influence of sex steroid hormones, immature rats were treated for 3 days with estradiol (E2), progesterone (P4), and their antagonists (ICI 182,780, and RU486)...
January 11, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28072858/proton-pump-inhibitors-do-not-reduce-the-risk-of-esophageal-adenocarcinoma-in-patients-with-barrett-s-esophagus-a-systematic-review-and-meta-analysis
#9
Qiang Hu, Tian-Tian Sun, Jie Hong, Jing-Yuan Fang, Hua Xiong, Stephen J Meltzer
OBJECTIVES: Proton pump inhibitors (PPIs) have been used for treatment of Barrett's esophagus (BE) for many years. However, the connection between PPIs and esophageal adenocarcinoma (EAC) in patients with BE has still been controversial. The current systematic review and meta-analysis was designed to evaluate the association between PPIs and the risk of EAC or high-grade dysplasia (HGD) in patients with BE. METHODS: A systematic literature search of studies reporting the association between PPIs and the risk of EAC and/or HGD in patients with BE was conducted in PubMed, Embase, Web of Science and the Cochrane Library...
2017: PloS One
https://www.readbyqxmd.com/read/28068231/establishing-evidence-based-indications-for-proton-therapy-an-overview-of-current-clinical-trials
#10
Mark V Mishra, Sameer Aggarwal, Soren M Bentzen, Nancy Knight, Minesh P Mehta, William F Regine
PURPOSE: To review and assess ongoing proton beam therapy (PBT) clinical trials and to identify major gaps. METHODS AND MATERIALS: Active PBT clinical trials were identified from clinicaltrials.gov and the World Health Organization International Clinical Trials Platform Registry. Data on clinical trial disease site, age group, projected patient enrollment, expected start and end dates, study type, and funding source were extracted. RESULTS: A total of 122 active PBT clinical trials were identified, with target enrollment of >42,000 patients worldwide...
February 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28062868/temporal-trends-and-regional-variations-in-gastrointestinal-cancer-mortality-in-peru-2005-2014
#11
Akram Hernández-Vásquez, Guido Bendezú-Quispe, Diego Azañedo, Bertha Huarez, Belén Rodríguez-Lema
OBJECTIVE: To estimate and analyze the evolution of mortality rates of gastrointestinal (GI) cancer in Peru and its regions between 2005-2014. MATERIAL AND METHODS: We performed a nationwide secondary analysis of Peru's Health Ministry registry of deaths during the period 2005-2014, with a focus on regional differences. Deaths registered with codes C15 to C25 (malignant neoplasms of digestive organs) from the ICD-10 were included. Calculation of age-standarized mortality rates and years of life lost (YLL) due to GI cancer per 100,000 habitants were also performed...
October 2016: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28062361/redox-signaling-in-the-gastrointestinal-tract
#12
REVIEW
Salvador Pérez, Raquel Taléns-Visconti, Sergio Rius-Pérez, Isabela Finamor, Juan Sastre
Redox signaling regulates physiological self-renewal, proliferation, migration and differentiation in gastrointestinal epithelium by modulating Wnt/β-catenin and Notch signaling pathways mainly through NADPH oxidases (NOXs). In the intestine, intracellular and extracellular thiol redox status modulates the proliferative potential of epithelial cells. Furthermore, commensal bacteria contribute to intestine epithelial homeostasis through NOX1- and dual oxidase 2-derived reactive oxygen species (ROS). The loss of redox homeostasis is involved in the pathogenesis and development of a wide diversity of gastrointestinal disorders, such as Barrett's esophagus, esophageal adenocarcinoma, peptic ulcer, gastric cancer, ischemic intestinal injury, celiac disease, inflammatory bowel disease and colorectal cancer...
January 3, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28058549/reliable-surgical-techniques-for-lymphadenectomy-along-the-left-recurrent-laryngeal-nerve-during-thoracoscopic-esophagectomy-in-the-prone-position
#13
Taro Oshikiri, Tetsu Nakamura, Hiroshi Hasegawa, Masashi Yamamoto, Shingo Kanaji, Kimihiro Yamashita, Takeru Matsuda, Yasuo Sumi, Satoshi Suzuki, Yoshihiro Kakeji
BACKGROUND: Lymphadenectomy along the left recurrent laryngeal nerve (RLN) in esophageal cancer is important for disease control (1) but requires advanced dissection skills. We previously reported a reliable method (2) for lymphadenectomy along the left RLN during thoracoscopic esophagectomy in the prone position (TEP). The goal of this method is complete dissection of the lymph nodes along the left RLN in a safe manner. METHOD: This procedure is performed for all resectable thoracic esophageal cancers...
January 5, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28049580/epigenetic-regulation-on-the-gene-expression-signature-in-esophagus-adenocarcinoma
#14
Ting Xi, Guizhi Zhang
BACKGROUND: Understanding the molecular mechanisms represents an important step in the development of diagnostic and therapeutic measures of esophagus adenocarcinoma (NOS). The objective of this study is to identify the epigenetic regulation on gene expression in NOS, shedding light on the molecular mechanisms of NOS. METHODS: In this study, 78 patients with NOS were included and the data of mRNA, miRNA and DNA methylation of were downloaded from The Cancer Genome Atlas (TCGA)...
December 19, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28048824/su-f-t-123-the-simulated-effect-of-the-breath-hold-reproducibility-treating-locally-advanced-lung-cancer-with-pencil-beam-scanned-proton-therapy
#15
J Dueck, R Perrin, G F Persson, A Lomax, M Josipovic, S A Engelholm, D C Weber, P Munck, A F Rosenschöld
PURPOSE: The breath-hold (BH) technique has been suggested to mitigate motion and reduce target coverage degradation due to motion effects. The aim of this study was to investigate the effect of inter-BH residual motion on the dose distribution for pencil beam scanned (PBS) proton therapy of locally-advanced lung cancer patients. METHODS: A dataset of visually-guided BH CT scans was acquired (10 scans per patient) taken from five lung cancer patients: three intra-fractionally repeated CT scans on treatment days 2,16 and 31, in addition to the day 0 planning CT scan...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048821/mo-g-201-02-comparing-sample-size-requirements-for-knowledge-based-treatment-planning
#16
J J Boutilier, A D C Babier, T Craig, A L McNiven, M B Sharpe, T C Y Chan
PURPOSE: To compare how training set size affects the accuracy of a knowledge-based planning (KBP) model applied to prostate and head and neck (HN) cancer. METHODS: We selected a KBP model from the literature that uses distance-to-target histograms and organ volumes to predict an achievable dose-volume-histogram (DVH) curve for each organ-at-risk (OAR). We trained both the prostate and HN model using training set sizes of n=10, 20, 30, 50,75, and 100. We set aside 100 randomly selected treatment plans from each of the two respective cohorts of 218 to serve as a validation set for all experiments...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048684/su-f-t-115-uncertainty-in-the-esophagus-dose-in-retrospective-epidemiological-study-of-breast-cancer-radiotherapy-patients
#17
E Mosher, S Kim, C Lee, C Pelletier, J Jung, E Jones, C Lee
PURPOSE: Epidemiological studies of second cancer risks in breast cancer radiotherapy patients often use generic patient anatomy to reconstruct normal tissue doses when CT images of patients are not available. To evaluate the uncertainty involved in the dosimetry approach, we evaluated the esophagus dose in five sample patients by simulating breast cancer treatments. METHODS: We obtained the diagnostic CT images of five anonymized adult female patients in different Body Mass Index (BMI) categories (16- 36kg/m2) from National Institutes of Health Clinical Center...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048681/mo-fg-campus-tep2-02-first-experiences-and-perspectives-in-using-direct-multicriteria-optimization-mco-on-volumetric-modulated-arc-therapy-vmat-for-head-and-neck-cancer
#18
Samantha Edgington, Christopher Cotter, Paul Busse, Bruce Crawford, Yi Wang
PURPOSE: To report the first experiences and perspectives in using direct multicriteria optimization (MCO) on volumetric-modulated arc therapy (VMAT) for head and neck (H&N) cancer. METHODS: Ten prior patients with tumors in representative H&N regions were selected to evaluate direct MCO-VMAT in RayStation v5.0 beta. The patients were previously treated by intensity-modulated radiation therapy (IMRT) with MCO on an Elekta linear accelerator with Agility multileaf collimator...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048668/tu-ab-202-01-multi-institutional-validation-study-of-commercially-available-deformable-image-registration-software-for-thoracic-images
#19
N Kadoya, Y Nakajima, M Saito, Y Miyabe, M Kurooka, S Kito, M Sasaki, Y Fujita, K Arai, K Tani, M Yagi, A Wakita, N Tohyama, K Jingu
PURPOSE: The purpose of this study was to assess the accuracy of commercially available deformable image registration (DIR) software for thoracic images on multi-institution. Furthermore, we determined the variation in the DIR accuracy among institutions due to different DIR algorithms and DIR procedures. METHODS: Thoracic four-dimensional (4D) CT images of ten patients with esophagus or lung cancer were used. Datasets for these patients were provided by DIR-lab (dir-lab...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048528/we-h-206-01-photoacoustic-tomography-multiscale-imaging-from-organelles-to-patients-by-ultrasonically-beating-the-optical-diffusion-limit
#20
L Wang
: Lihong V. Wang: Photoacoustic tomography (PAT), combining non-ionizing optical and ultrasonic waves via the photoacoustic effect, provides in vivo multiscale functional, metabolic, and molecular imaging. Broad applications include imaging of the breast, brain, skin, esophagus, colon, vascular system, and lymphatic system in humans or animals. Light offers rich contrast but does not penetrate biological tissue in straight paths as x-rays do. Consequently, high-resolution pure optical imaging (e...
June 2016: Medical Physics
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