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https://www.readbyqxmd.com/read/29223109/genome-wide-analysis-of-barrett-s-adenocarcinoma-a-first-step-towards-identifying-patients-at-risk-and-developing-therapeutic-paths
#1
Yiyang Dai, Qing Wang, Adrian Gonzalez Lopez, Mario Anders, Peter Malfertheiner, Michael Vieth, Wolfgang Kemmner
BACKGROUND: Barrett's esophagus metaplasia is the key precursor lesion of esophageal adenocarcinoma. The aim of this study was to find a subset of markers that may allow the identification of patients at risk for esophageal adenocarcinoma, and to determine genes differentially expressed in esophageal squamous cell carcinoma. METHODS: Laser capture microdissection technique was applied to procure cells from defined regions. Genome-wide RNA profiling was performed on esophageal adenocarcinoma (n = 21), Barrett's esophagus (n = 20), esophageal squamous carcinoma (n = 9) and healthy esophageal biopsies (n = 18) using the Affymetrix Human Genome U133plus 2...
December 6, 2017: Translational Oncology
https://www.readbyqxmd.com/read/29219119/density-overwrites-of-internal-tumor-volumes-in-intensity-modulated-proton-therapy-plans-for-mobile-lung-tumors
#2
Pablo Botas, Clemens Grassberger, Gregory Sharp, Harald Paganetti
The purpose of this study was to investigate Internal Tumor Volume (ITV) density overwrite strategies to minimize Intensity Modulated Proton Therapy (IMPT) plan degradation of mobile lung tumors. Four planning paradigms were compared for nine lung cancer patients. IGTV and ICTV structures were defined encompassing their respective volumes in every 4DCT phase. The paradigms use different planning CT (pCT) created from the Average Intensity Projection (AIP) of the 4DCT, overwriting the density within the IGTV to account for movement...
December 8, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29208671/cxcr4-is-a-potential-target-for-diagnostic-pet-ct-imaging-in-barrett-s-dysplasia-and-esophageal-adenocarcinoma
#3
Hsin-Yu Fang, Natasha Stephens Münch, Margret Schottelius, Jonas Ingermann, Haibo Liu, Michael Schauer, Stefan Stangl, Gabriele Multhoff, Katja Steiger, Carlos Gerngroß, Moritz Jesinghaus, Wilko Weichert, Anja A Kühl, Antonia R Sepulveda, Hans-Jürgen Wester, Timothy C Wang, Michael Quante
INTRODUCTION: Barrett's Esophagus (BE) represents an early stage in carcinogenesis leading to esophageal adenocarcinoma (EAC). Considerable evidence supports a major role for chronic inflammation and diverse chemokine pathways in the development of BE and EAC. METHODS: Here we utilized a IL-1b transgenic mouse model of BE and EAC and human patient imaging to analyse the importance of CXCR4 expressing cells during esophageal carcinogenesis. RESULTS: IL-1b overexpression induces chronic esophageal inflammation and recapitulates the progression to BE and EAC...
December 5, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29208513/clinical-evaluation-of-atlas-and-deep-learning-based-automatic-contouring-for-lung-cancer
#4
Tim Lustberg, Johan van Soest, Mark Gooding, Devis Peressutti, Paul Aljabar, Judith van der Stoep, Wouter van Elmpt, Andre Dekker
BACKGROUND AND PURPOSE: Contouring of organs at risk (OARs) is an important but time consuming part of radiotherapy treatment planning. The aim of this study was to investigate whether using institutional created software-generated contouring will save time if used as a starting point for manual OAR contouring for lung cancer patients. MATERIAL AND METHODS: Twenty CT scans of stage I-III NSCLC patients were used to compare user adjusted contours after an atlas-based and deep learning contour, against manual delineation...
December 2, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29206677/benchmarking-complications-associated-with-esophagectomy
#5
Donald E Low, Madhan Kumar Kuppusamy, Derek Alderson, Ivan Cecconello, Andrew C Chang, Gail Darling, Andrew Davies, Xavier Benoit D'Journo, Suzanne S Gisbertz, S Michael Griffin, Richard Hardwick, Arnulf Hoelscher, Wayne Hofstetter, Blair Jobe, Yuko Kitagawa, Simon Law, Christophe Mariette, Nick Maynard, Christopher R Morse, Philippe Nafteux, Manuel Pera, C S Pramesh, Sonia Puig, John V Reynolds, Wolfgang Schroeder, Mark Smithers, B P L Wijnhoven
OBJECTIVE: Utilizing a standardized dataset with specific definitions to prospectively collect international data to provide a benchmark for complications and outcomes associated with esophagectomy. SUMMARY OF BACKGROUND DATA: Outcome reporting in oncologic surgery has suffered from the lack of a standardized system for reporting operative results particularly complications. This is particularly the case for esophagectomy affecting the accuracy and relevance of international outcome assessments, clinical trial results, and quality improvement projects...
December 4, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/29206231/cancer-type-dependent-expression-of-ck2-transcripts
#6
Melissa M J Chua, Migi Lee, Isabel Dominguez
A multitude of proteins are aberrantly expressed in cancer cells, including the oncogenic serine-threonine kinase CK2. In a previous report, we found increases in CK2 transcript expression that could explain the increased CK2 protein levels found in tumors from lung and bronchus, prostate, breast, colon and rectum, ovarian and pancreatic cancers. We also found that, contrary to the current notions about CK2, some CK2 transcripts were downregulated in several cancers. Here, we investigate all other cancers using Oncomine to determine whether they also display significant CK2 transcript dysregulation...
2017: PloS One
https://www.readbyqxmd.com/read/29199147/factors-associated-with-progression-of-barrett-s-esophagus-a-systematic-review-and-meta-analysis
#7
Rajesh Krishnamoorthi, Siddharth Singh, Karthik Ragunathan, Kavel Visrodia, Kenneth K Wang, David A Katzka, Prasad G Iyer
BACKGROUND & AIMS: Endoscopic surveillance of patients with Barrett's esophagus (BE) is inefficient. Risk stratification of patients might improve the effectiveness of surveillance. We performed a systematic review and meta-analysis to identify factors associated with progression of BE without dysplasia or BE with low-grade dysplasia (LGD) to high-grade dysplasia or esophageal adenocarcinoma. METHODS: We performed a systematic search of databases through May 2016 to identify cohort studies of patients with baseline BE without dysplasia or BE with LGD that reported predictors of progression...
November 30, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29194940/the-development-of-a-4d-treatment-planning-methodology-to-simulate-the-tracking-of-central-lung-tumors-in-an-mri-linac
#8
Shahad M Al-Ward, Anthony Kim, Claire McCann, Mark Ruschin, Patrick Cheung, Arjun Sahgal, Brian M Keller
PURPOSE: Targeting and tracking of central lung tumors may be feasible on the Elekta MRI-linac (MRL) due to the soft-tissue visualization capabilities of MRI. The purpose of this work is to develop a novel treatment planning methodology to simulate tracking of central lung tumors with the MRL and to quantify the benefits in OAR sparing compared with the ITV approach. METHODS: Full 4D-CT datasets for five central lung cancer patients were selected to simulate the condition of having 4D-pseudo-CTs derived from 4D-MRI data available on the MRL with real-time tracking capabilities...
December 1, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29190931/cancer-mortality-trends-in-an-industrial-district-of-shanghai-china-from-1974-to-2014-and-projections-to-2029
#9
Mi Li, Shuo Wang, Xue Han, Wenbin Liu, Jiahui Song, Hongwei Zhang, Jia Zhao, Fan Yang, Xiaojie Tan, Xi Chen, Yan Liu, Hui Li, Yibo Ding, Xiaoyu Du, Jianhua Yin, Rong Zhang, Guangwen Cao
We aimed to characterize the trends and projections of cancer mortalities in Yangpu, an industry restructuring district of Shanghai, China. With high-quality data from the death registration system, the authors analyzed the trends in cancer mortalities during 1974-2014 and their relationship with pollution control and socioeconomic improvements. Cancer burden was projected into 2029. During 1974-2014, cancer death accounted for 28.80% of all-cause death. The 5 leading causes of cancer death were cancers of the lung & bronchus, stomach, liver, colon & rectum, and esophagus...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29189717/telomere-shortening-in-hematological-malignancies-with-tetraploidization-a-mechanism-for-chromosomal-instability
#10
Eigil Kjeldsen
Aneuploidy, the presence of an abnormal number of chromosomes in a cell, is one of the most obvious differences between normal and cancer cells. There is, however, debate on how aneuploid cells arise and whether or not they are a cause or a consequence of tumorigenesis. Further, it is important to distinguish aneuploidy (the "state" of the karyotype) from chromosomal instability (CIN; the "rate" of karyotypic change). Although CIN leads to aneuploidy, not all aneuploid cells exhibit CIN. One proposed route to aneuploid cells is through an unstable tetraploid intermediate because tetraploidy promotes chromosomal aberrations and tumorigenesis...
November 30, 2017: Cancers
https://www.readbyqxmd.com/read/29187491/incidence-and-risk-factors-of-symptomatic-hiatal-hernia-following-resection-for-gastric-and-esophageal-cancer
#11
Andreas Andreou, Sina Pesthy, Benjamin Struecker, Mehran Dadras, Jonas Raakow, Sebastian Knitter, Gregor Duwe, Igor M Sauer, Anika Sophie Beierle, Christian Denecke, Sascha Chopra, Johann Pratschke, Matthias Biebl
BACKGROUND/AIM: Symptomatic hiatal hernia (HH) following resection for gastric or esophageal cancer is a potentially life-threatening event that may lead to emergent surgery. However, the incidence and risk factors of this complication remain unclear. PATIENTS AND METHODS: Data of patients who underwent resection for gastric or esophageal cancer between 2005 and 2012 were assessed and the incidence of symptomatic HH was evaluated. Factors associated with an increased risk for HH were investigated...
December 2017: Anticancer Research
https://www.readbyqxmd.com/read/29186937/how-to-use-pet-ct-in-the-evaluation-of-response-to-radiotherapy
#12
Pierre Decazes, Sébastien Thureau, Bernard Dubray, Pierre Vera
INTRODUCTION: Radiotherapy is a major treatment modality for many cancers. Tumor response after radiotherapy determines the subsequent steps of the patient's management (surveillance, adjuvant or salvage treatment and palliative care). Tumor response assessed during radiotherapy offers a promising opportunity to adapt the treatment plan to reduced / increased target volume, to specifically target sub-volumes with relevant biological characteristics (metabolism, hypoxia, proliferation ...
November 28, 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29181149/a-case-of-pneumatosis-intestinalis-during-neoadjuvant-chemotherapy-with-cisplatin-and-5-fluorouracil-for-esophageal-cancer%C3%A2
#13
Keita Kouzu, Hironori Tsujimoto, Shuichi Hiraki, Risa Takahata, Yoshihisa Yaguchi, Isao Kumano, Hiroyuki Horiguchi, Shinsuke Nomura, Ken Nagata, Manabu Harada, Hiromi Nagata, Takao Sugihara, Yusuke Ishibashi, Yujiro Itazaki, Satoshi Tsuchiya, Suefumi Aosasa, Kazuo Hase, Junji Yamamoto, Hideki Ueno
Pneumatosis intestinalis (PI) is a relatively rare disease. A 70-year-old man with stage II squamous cell carcinoma of the middle thoracic esophagus was administered cisplatin plus 5-fluorouracil (CF) therapy as neoadjuvant chemotherapy. On Day 14 of the first course of CF therapy, he complained of acute abdominal pain. Computed tomography (CT) revealed PI of the entire colon and a small air bubble in the mesentery. A colonoscopy revealed that there was no finding suggestive of ischemia. Because there was no sign of peritoneal irritation, conservative treatment was selected...
November 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29181066/stem-cell-factor-in-the-serum-of-patients-with-esophageal-cancer-in-relation-to-its-histological-types
#14
Marta Łukaszewicz-Zając, Barbara Mroczko, Mirosław Kozłowski, Maciej Szmitkowski
Introduction: Hematopoietic growth factors (HGFs), such as stem cell factor (SCF), may stimulate proliferation and differentiation of hematopoietic progenitor cells. Stem cell factor is also able to affect the growth of malignant tumors, including esophageal cancer (EC). The prognosis of EC patients' survival is still unfavorable. Thus, novel biomarkers are necessary to improve the diagnosis and prognosis of EC patients. The aim of this study was to determine the serum SCF concentrations in EC patients in relation to its histological types and compare these levels with the classical tumor marker - carcinoembryonic antigen (CEA)...
October 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29179503/can-polysaccharide-k-improve-therapeutic-efficacy-and-safety-in-gastrointestinal-cancer-a-systematic-review-and-network-meta-analysis
#15
Yan Ma, Xiaofen Wu, Jingwen Yu, Jinyan Zhu, Xia Pen, Xianjun Meng
Objective: To assess the comparative efficacy and safety of polysaccharide K (PSK), with or without chemotherapy, for patients with gastrointestinal cancer (GIC) through a systematic review and network meta-analysis. Materials and Methods: We performed a network meta-analysis to identify evidence from randomized controlled trials. We searched PubMed, Embase and the Cochrane Library for publications up to May 2017. The prespecified primary efficacy outcomes were 1-7 year overall survival (OS), while the secondary efficacy outcomes were 1-7 year disease-free survival (DFS); we performed subgroup analyses and meta-regressions according to the cancer type (colorectal, esophagus and gastric cancer) and treatment arms (with or without chemotherapy)...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29174712/lugol-chromoendoscopy-detects-esophageal-dysplasia-with-low-levels-of-sensitivity-in-a-high-risk-region-of-china
#16
Jingjing Li, Ruiping Xu, Mengfei Liu, Hong Cai, Changqi Cao, Fangfang Liu, Fenglei Li, Chuanhai Guo, Yaqi Pan, Zhonghu He, Yang Ke
BACKGROUND & AIMS: Chromoendoscopy with Lugol dye is used to screen for early-stage esophageal squamous dysplasia (ESD) and esophageal cancer. However, the sensitivity with which Lugol chromoendoscopy detects ESD or esophageal cancer has not been fully assessed in large populations in China. METHODS: From 2012 to 2016, a total of 15,264 residents in rural Hua County, Henan Province, which is a high-incidence area of esophageal cancer in China, were screened by Lugol chromoendoscopy...
November 21, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29156750/somatic-mutations-in-cdh1-and-ctnnb1-in-primary-carcinomas-at-13-anatomic-sites
#17
Evan L Busch, Jason L Hornick, Renato Umeton, Adem Albayrak, Neal I Lindeman, Laura E MacConaill, Elizabeth P Garcia, Matthew Ducar, Timothy R Rebbeck
Metastases are involved in most cancer deaths. Evidence has suggested that cancer cell detachment from primary tumors might occur largely via the mechanism of epithelial-mesenchymal transition (EMT) activated by epigenetic events, but data addressing other possible triggers of detachment, particularly genetic mutations, have been limited. Using the Profile study of cancer genomics at Dana-Farber Cancer Institute, we examined somatic mutations in the EMT genes CDH1 in 5,106 primary carcinomas and CTNNB1 in 7,578 primary carcinomas across 13 anatomic sites: urinary bladder, breast, colon/rectum, endometrium, esophagus, kidney, lung, ovary, pancreas, prostate, skin (non-melanoma), stomach, and thyroid...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156633/alcohol-and-cancer-stem-cells
#18
REVIEW
Mei Xu, Jia Luo
Heavy alcohol consumption has been associated with increased risk of several cancers, including cancer of the colon, rectum, female breast, oral cavity, pharynx, larynx, liver, and esophagus. It appears that alcohol exposure not only promotes carcinogenesis but also enhances the progression and aggressiveness of existing cancers. The molecular mechanisms underlying alcohol tumor promotion, however, remain unclear. Cancer stem cells (CSC), a subpopulation of cancer cells with self-renewal and differentiation capacity, play an important role in tumor initiation, progression, metastasis, recurrence, and therapy resistance...
November 20, 2017: Cancers
https://www.readbyqxmd.com/read/29152066/identification-and-validation-of-fgfr2-peptide-for-detection-of-early-barrett-s-neoplasia
#19
Juan Zhou, Lei He, Zhijun Pang, Henry D Appelman, Rork Kuick, David G Beer, Meng Li, Thomas D Wang
The incidence of esophageal adenocarcinoma (EAC) is rising rapidly, and early detection within the precursor state of Barrett's esophagus (BE) is challenged by flat premalignant lesions that are difficult detect with conventional endoscopic surveillance. Overexpression of cell surface fibroblast growth factor receptor 2 (FGFR2) is an early event in progression of BE to EAC, and is a promising imaging target. We used phage display to identify the peptide SRRPASFRTARE that binds specifically to the extracellular domain of FGFR2...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29147877/efficacy-and-safety-of-fully-covered-self-expanding-metal-stents-for-malignant-esophageal-obstruction
#20
Hoonsub So, Ji Yong Ahn, Seungbong Han, Kyoungwon Jung, Hee Kyong Na, Jeong Hoon Lee, Kee Wook Jeong, Do Hoon Kim, Kee Don Choi, Ho June Song, Gin Hyug Lee, Hwoon-Yong Jung
BACKGROUND: Malignant dysphagia can result in poor nutritional status with severe weight loss. Rapid relief from dysphagia can be achieved with esophageal self-expanding metal stents (SEMSs), a minimally invasive method. In this study, we evaluated the usefulness of SEMSs for malignant dysphagia. METHODS: Between 2012 and 2015, 119 patients with malignant dysphagia underwent esophageal SEMS insertion with endoscopic assistance. Their demographics and clinical outcomes were collected...
November 17, 2017: Digestive Diseases and Sciences
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