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GI cancer

Shubhankar Suman, Santosh Kumar, Albert J Jr Fornace, Kamal Datta
Carbon irradiation due to its higher biological effectiveness relative to photon radiation is a concern for toxicity to proliferative normal gastrointestinal (GI) tissue after radiotherapy and long-duration space missions such as mission to Mars. Although radiation-induced oxidative stress is linked to chronic diseases such as cancer, effects of carbon irradiation on normal GI tissue have not been fully understood. This study assessed and compared chronic oxidative stress in mouse intestine and colon after different doses of carbon and γ radiation, which are qualitatively different...
March 16, 2018: Free Radical Research
P Marega, E A Liberti, J J S Freitas, K S Kietzer
BACKGROUND: Gastrointestinal (GI) dysmotility is common in patients with cancer. There are a few studies about the myenteric plexus in the presence of anatomically remote tumors. METHODS: Forty-eight male Wistar rats were divided into a control (CT) or Walker-256 (TW) group. Tumor cells were subcutaneously injected and saline was injected in the CT group. After 14 days, the small and large intestines were removed for histochemical analysis. The macroscopic morphology of the intestines and the fecal excretion were also observed...
March 15, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
Ben Lariviere, Katherine S Garman, N Lynn Ferguson, Deborah A Fisher, Nan M Jokerst
Early detection and surveillance of disease progression in epithelial tissue is key to improving long term patient outcomes for colon and esophageal cancers, which account for nearly a quarter of cancer related mortalities worldwide. Spatially resolved diffuse reflectance spectroscopy (SRDRS) is a non-invasive optical technique to sense biological changes at the cellular and sub-cellular level that occur when normal tissue becomes diseased, and has the potential to significantly improve the current standard of care for endoscopic gastrointestinal (GI) screening...
March 1, 2018: Biomedical Optics Express
Matharage Gayani Dilshara, Rajapaksha Gedara Prasad Tharanga Jayasooriya, Ilandarage Menu Neelaka Molagoda, Jin-Woo Jeong, Seungheon Lee, Sang Rul Park, Gi-Young Kim, Yung Hyun Choi
In this study, we addressed how silibinin enhances tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-mediated apoptosis in various cancer cells. Combined treatment with silibinin and TRAIL (silibinin/TRAIL) induced apoptosis accompanied by the activation of caspase-3, caspase-8, caspase-9, and Bax, and cytosolic accumulation of cytochrome c. Anti-apoptotic proteins such as Bcl-2, IAP-1, and IAP-2 were inhibited as well. Silibinin also triggered TRAIL-induced apoptosis in A549 cells through upregulation of death receptor 5 (DR5)...
February 13, 2018: Oncotarget
Anussara Prayongrat, Kikuo Umegaki, Arjen van der Schaaf, Albert C Koong, Steven H Lin, Thomas Whitaker, Todd McNutt, Naruhiro Matsufuji, Edward Graves, Masahiko Mizuta, Kazuhiko Ogawa, Hiroyuki Date, Kensuke Moriwaki, Yoichi M Ito, Keiji Kobashi, Yasuhiro Dekura, Shinichi Shimizu, Hiroki Shirato
Particle beam therapy (PBT), including proton and carbon ion therapy, is an emerging innovative treatment for cancer patients. Due to the high cost of and limited access to treatment, meticulous selection of patients who would benefit most from PBT, when compared with standard X-ray therapy (XRT), is necessary. Due to the cost and labor involved in randomized controlled trials, the model-based approach (MBA) is used as an alternative means of establishing scientific evidence in medicine, and it can be improved continuously...
February 24, 2018: Journal of Radiation Research
Allen Cohn, Michael A Morse, Bert O'Neil, Samuel Whiting, Claire Coeshott, John Ferraro, Donald Bellgrau, David Apelian, Timothy C Rodell
We are developing whole, heat-killed, recombinant Saccharomyces cerevisiae yeast, engineered to encode target proteins, which stimulate immune responses against malignant cells expressing those targets. This phase 1 trial, enrolling patients with advanced colorectal or pancreas cancer, was designed to evaluate safety, immunogenicity, response, and overall survival of ascending doses of the GI-4000 series of products, which express 3 different forms of mutated Ras proteins. The study enrolled 33 heavily pretreated subjects (14 with pancreas and 19 with colorectal cancer), whose tumors were genotyped before enrollment to identify the specific ras mutation and thereby to identify which GI-4000 product to administer...
April 2018: Journal of Immunotherapy
Jun Won Park, Min-Sik Kim, Dominic C Voon, Su-Jin Kim, Jingi Bae, Dong-Gi Mun, Seung-Ik Ko, Hark Kyun Kim, Sang-Won Lee, Dae-Yong Kim
The molecular mechanisms underlying the pathogenesis of diffuse-type gastric cancer (DGC) have not been adequately explored due to a scarcity of appropriate animal models. A recently developed tool well suited for this line of investigation is the Pdx-1-Cre;Cdh1F/+ ;Trp53F/F ;Smad4F/F (pChe PS) mouse model that spontaneously develops metastatic DGC showing nearly complete E-cadherin loss. Here, we performed a proteogenomic analysis to uncover the molecular changes induced by the concurrent targeting of E-cadherin, p53, and Smad4 loss...
March 12, 2018: Molecular Carcinogenesis
Agne Krilaviciute, Christian Stock, Marcis Leja, Hermann Brenner
Regular screening for gastric cancer (GC) is based on invasive upper gastrointestinal (GI) endoscopy and is limited to few high incidence countries. As GC is a major cause of cancer death worldwide, a non-invasive, simple screening test is of value. We assessed the prevalence of preclinical GC and the corresponding numbers needed to screen (NNS) to detect GC cases both without and with preselection using breath tests from the literature in various populations. 
 Methods: Using age- and sex-specific GC incidence data and transition rates from preclinical to clinical GC, we estimated prevalences of preclinical GC worldwide in the populations aged 50-74 years, and we evaluated the accuracy of breath testing for GC detection based on published studies...
March 12, 2018: Journal of Breath Research
L R van der Werf, J L Dikken, M I van Berge Henegouwen, V E P P Lemmens, G A P Nieuwenhuijzen, B P L Wijnhoven
BACKGROUND: For esophageal cancer, the number of retrieved lymph nodes (LNs) is often used as a quality indicator. The aim of this study is to analyze the number of retrieved LNs in The Netherlands, assess factors associated with LN yield, and explore the association with short-term outcomes. This is a population-based study on lymph node retrieval in patients with esophageal cancer, presenting results from the Dutch Upper Gastrointestinal Cancer Audit. STUDY DESIGN: For this retrospective national cohort study, patients with esophageal carcinoma who underwent esophagectomy between 2011 and 2016 were included...
March 9, 2018: Annals of Surgical Oncology
Corey C Foster, Andrew Y Lee, Larissa V Furtado, John Hart, Lindsay Alpert, Shu-Yuan Xiao, Neil H Hyman, Manish R Sharma, Stanley Liauw
BACKGROUND: Intensity-modulated radiation therapy (IMRT) has been used to limit treatment-related toxicity for patients with anal squamous cell carcinoma (SCC). The treatment outcomes and HPV characteristics for a cohort of patients receiving definitive concurrent chemotherapy and IMRT are reported. MATERIALS AND METHODS: 52 patients with anal SCC were treated with IMRT and concurrent chemotherapy. Radiation was delivered sequentially to the pelvis and inguinal lymph nodes (45 Gy) and anal tumor (median dose, 54 Gy)...
2018: PloS One
Michael Chao, Huong Ho, Yee Chan, Alwin Tan, Trung Pham, Damien Bolton, Andrew Troy, Catherine Temelcos, Shomik Sengupta, Kevin McMillan, Chee Wee Cham, Madalena Liu, Wei Ding, Brindha Subramanian, Jason Wasiak, Daryl Lim Joon, Sandra Spencer, Nathan Lawrenstchuk
OBJECTIVE: The purpose of this study was to report on the dosimetric benefits and late toxicity outcomes following injection of a hydrogel spacer (HS) between the prostate and rectum for patients treated with prostate radiotherapy. METHODS: A total of 76 patients with a clinical stage of T1-T3a prostate cancer underwent general anaesthesia for fiducial marker insertion plus injection of the HS into the peri-rectal space prior to intensity modulated radiation therapy (IMRT) or volumetric modulated radiation therapy (VMAT)...
March 9, 2018: BJU International
Dong Il Gwon, Gi-Young Ko, Jong Woo Kim, Heung Kyu Ko, Hyun-Ki Yoon, Kyu-Bo Sung
Objective: To investigate the technical safety and clinical efficacy of a double-stent system with long duodenal extension in patients with malignant extrahepatic biliary obstruction. Materials and Methods: This prospective study enrolled 48 consecutive patients (31 men, 17 women; mean age, 61 years; age range, 31-77 years) with malignant extrahepatic biliary obstructions from May 2013 to December 2015. All patients were treated with a double-stent system with long duodenal covered extension (16 cm or 21 cm)...
March 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
Nurul Mubarokah, Julie-Ann Hulin, Peter Ian Mackenzie, Ross A McKinnon, Alex Z Haines, Dong Gui Hu, Robyn Meech
The UDP-glucuronosyltransferases (UGTs) of the gastrointestinal tract (GIT) have a crucial role in protection against dietary toxins and metabolism of orally administered drugs. A subset of UGTs including UGT1A8, UGT1A9, and UGT1A10 are highly expressed in GI tissues and this has been shown to be at least partly directed by the caudal homeodomain transcription factor, CDX2. We sought to further define the factors involved in regulation of the UGT1A8-1A10 genes and identified a novel composite element located within the proximal promoters of these three genes that binds to both CDX2 and the hepatocyte nuclear factor HNF4α, and mediates synergistic activation by these factors...
March 8, 2018: Molecular Pharmacology
Romano Schneider, Ioannis Lazaridis, Marko Kraljević, Christoph Beglinger, Bettina Wölnerhanssen, Ralph Peterli
BACKGROUND: Despite the increasing use of bariatric surgery as the most effective treatment of morbid obesity, there is still no consensus on its preoperative diagnostic workup. The aim of this study was to identify the pathologies of the endoscopic and radiologic investigations before performing bariatric surgery and to evaluate their impact on the patient management. METHODS: Retrospective analysis of prospectively collected data of 1225 consecutive patients who underwent laparoscopic Roux-en-Y gastric bypass (n = 834) or sleeve gastrectomy (n = 391) at our institution...
January 12, 2018: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
August Kapogiannis, Sofia Tsoli, George Chrousos
BACKGROUND: Previous systematic reviews indicate that progressive muscle relaxation (PMR) and guided imagery (GI) are both effective interventions to decrease the psychological impact and to alleviate the adverse events in cancer patients undergoing chemotherapy treatment. To date, no review studies have investigated the effectiveness of a combination of PMR and GI. AIM: To systematically review the current state of knowledge regarding the effects of the PMR-GI combination on cancer patients receiving chemotherapy...
December 21, 2017: Explore: the Journal of Science and Healing
Jung Bum Choi, Seul Gi Lee, Min Jhi Kim, Tae Hyung Kim, Eun Jeong Ban, Cho Rok Lee, Jandee Lee, Sang-Wook Kang, Jong Ju Jeong, Kee-Hyun Nam, Woong Youn Chung
Recently, dynamic risk stratification has been found to be more valuable than static anatomic staging system in nonmedullary thyroid cancer and this strategy has also been accepted in medullary thyroid cancer (MTC). The present study was designed to compare the clinical usefulness of response to initial therapy stratification with a traditional anatomic staging system.From August 1982 to December 2012, a total of 144 MTC patients underwent thyroidectomy in Yonsei University Hospital. Among them, 117 (82.2%) patients with complete clinical data and sustained follow-up were enrolled in this study...
January 2018: Medicine (Baltimore)
Sohyun Park, Jin Chul Paeng, Chang Hyun Kang, Gi Jeong Cheon, Keon Wook Kang, June-Key Chung, Dong Soo Lee
PURPOSE: The purpose of this study is to investigate the role of dual time point (DTP)18 F-FDG PET/CT in the staging of oesophageal cancer, especially in lymph node metastasis. METHODS: A total of 35 patients with oesophageal squamous cell carcinoma who underwent surgical treatment without neoadjuvant chemotherapy were enrolled as a test set and another 19 patients were enrolled as a validation set. The DTP PET/CT scans were obtained in dual time points at 60 and 120 min each, following the administration of18 F-FDG...
March 3, 2018: European Journal of Nuclear Medicine and Molecular Imaging
Lennart Åström, Erik Grusell, Fredrik Sandin, Ingela Turesson, Lars Holmberg
BACKGROUND: High-dose-rate brachytherapy (HDR-BT) has optimal prerequisites in radiotherapy of prostate cancer (PC) with a conformal dose distribution and high doses per fraction giving a biological dose escalation. We report the outcome after HDR-BT and external beam radiotherapy (EBRT) after 20 years of experience. MATERIAL AND METHODS: The study includes 623 patients, median age of 66 years, treated from 1995 to 2008 and a median follow up of 11 years (range 2-266 months)...
February 26, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Yinkui Wang, Ziyu Li, Fei Shan, Rulin Miao, Kan Xue, Zhemin Li, Chao Gao, Nan Chen, Xiangyu Gao, Shen Li, Jiafu Ji
OBJECTIVE: To investigate the current status of diagnosis and treatment of early gastric cancer in China, based on the nationwide survey by China Gastrointestinal Cancer Surgery Union. METHODS: The union sent questionnaires on basic diagnosis and treatment data of gastric and colorectal cancer to all the centers of the union. Different centers collected and summarized their data by year and sent back the questionnaires to the e-mail of theunion(gi_union@foxmail...
February 25, 2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
Walter Alexander
We present sessions on hepatocellular carcinoma and colorectal and pancreatic cancers from ASCO GI. Key sessions from SABCS covered dose intensification, new trial data, and ovarian suppression to preserve fertility.
March 2018: P & T: a Peer-reviewed Journal for Formulary Management
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