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GI cancer

Seul-Gi Oh, Xian Li, Ho Won Lee, Thoudam Debraj Singh, Sang Bong Lee, Hyun Dong Ji, GhilSuk Yoon, Sung Jin Cho, In-Kyu Lee, Shin Young Jeong, Byeong-Cheol Ahn, Jaetae Lee, Hyeun Wook Chang, Sang-Woo Lee, Yong Hyun Jeon
The inability to monitor the in vivo dynamics of mast cells (MCs) limits the better understanding of its role in cancer progression. Here, we report on noninvasive imaging of MC migration to tumor lesions in mice and evaluation of the effects of migrated MCs on tumor progression through reporter gene-based in vivo optical imaging and glucose metabolism monitoring in cancer with (18)F-fluorodeoxyglucose ((18)F-FDG) in vitro and in vivo. Murine MCs (MC-9) and Lewis lung cancer cells (LLC) expressing an enhanced firefly luciferase (effluc) gene were established, termed MC-9/effluc and LLC/effluc, respectively...
October 13, 2016: Biomaterials
Yong-Sik Bong, Shahin Assefnia, Therese Tuohy, Deborah W Neklason, Randall W Burt, Jaeil Ahn, Hao-Wen J Jiang, Stephen W Byers
Vitamin D is implicated in the etiology of cancers of the gastrointestinal tract, usually characterized by alteration in the APC/β-catenin/TCF tumor suppressor pathway. The vitamin D receptor (VDR) is also implicated in cardiovascular and skin diseases as well as in immunity. Activated VDR can indirectly alter β-catenin nuclear localization and directly suppress β-catenin/TCF mediated transcriptional activity. We treated VDR null mice with the carcinogen azoxymethane (AOM) and generated mice bearing a mutated APC (hypomorph) on a VDR null background (Apc1638N/+Vdr-/-)...
October 19, 2016: Oncotarget
Kathryn F Flack, Jay Desai, Jennifer M Kolb, Prapti Chatterjee, Lars C Wallentin, Michael Ezekowitz, Salim Yusuf, Stuart Connolly, Paul Reilly, Martina Brueckmann, John Ilgenfritz, James Aisenberg
BACKGROUND & AIMS: Gastrointestinal (GI) bleeding in patients receiving anticoagulation agents can be caused by occult malignancies. We investigated the proportions and features of major GI bleeding (MGIB) events related to occult GI cancers in patients receiving anticoagulation therapy. METHODS: We analyzed data from the Randomized Evaluation of Long Term Anticoagulant Therapy study (conducted between December 2005 and March 2009 in 951 clinical centers in 44 countries worldwide), which compared the abilities of dabigatran vs warfarin to prevent stroke and systemic embolism in 18,113 patients with atrial fibrillation...
October 17, 2016: Clinical Gastroenterology and Hepatology
Khaldoun Almhanna, Gopi K Prithviraj, Petter Veiby, Thea Kalebic
Antibody-directed cancer chemotherapy in the form of antibody-drug conjugates (ADCs) may improve the therapeutic index with the potential to enhance efficacy and decrease systemic toxicity. ADCs consist of three key components including an antibody that specifically binds to the target, a toxic agent and a linker which releases the toxic agent inside tumor cells. A novel ADC, MLN0264 (TAK-264) was recently investigated in patients with gastrointestinal (GI) malignancies. TAK-264 is an anti- guanylyl cyclase C (GCC) antibody conjugated via a protease-cleavable linker to the potent anti-microtubule agent monomethyl auristatin E (MMAE) (linker and toxin licensed from Seattle Genetics)...
October 17, 2016: Pharmacology & Therapeutics
Ju Myung Song, Ji Hoon Kim, Yoon Suk Lee, Ho Young Kim, In Kyu Lee, Seung Teak Oh, Jun Gi Kim
PURPOSE: Laparoscopic surgery was previously accepted as an alternative surgical option in treatment for colorectal cancer. Nowadays, single-port laparoscopic surgery (SPLS) is introduced as a method to maximize advantages of minimally invasive surgery. However, SPLS has several limitations compared to conventional multiport laparoscopic surgery (CMLS). To overcome those limitations of SPLS, reduced port laparoscopic surgery (RPLS) was introduced. This study aimed at evaluating the short-term outcomes of RPLS...
October 2016: Annals of Surgical Treatment and Research
Jing Yu, Yue Zhang, Lai-Han Leung, Lian Liu, Fan Yang, Xiaojun Yao
Monoclonal antibodies and small molecule tyrosine kinase inhibitors (TKIs) directed against the vascular endothelial growth factor (VEGF) or its receptors have been investigated in several studies for the treatment of advanced gastric cancer (GC). In the present study, we aimed to evaluate the efficacy and safety of angiogenesis inhibitors in advanced GC. We searched published randomized controlled trials (RCTs) comparing angiogenesis inhibitors with non-angiogenesis inhibitors for the treatment of GC. MEDLINE, EMBASE, and the Cochrane Controlled Trials Register were searched...
October 18, 2016: Journal of Hematology & Oncology
Seul Gi Lee, Woo Kyung Lee, Hye Sun Lee, Jieun Moon, Cho Rok Lee, Sang Wook Kang, Jong Ju Jeong, Kee-Hyun Nam, Woong Youn Chung, Young Suk Jo, Jandee Lee
BACKGROUND: The 2015 American Thyroid Association (ATA) management guidelines for adult patients with differentiated thyroid cancer (DTC) propose the use of the modified initial risk stratification and response to therapy re-stratification systems. This study was conducted to validate the practicality of the revised guidelines for predicting tumor recurrence in patients with DTC. METHODS: Patients with papillary thyroid cancer (n=2425) who underwent total thyroidectomy with central neck node dissection with or without modified radical neck node dissection at a single institution between October 1985 and July 2009 were retrospectively enrolled...
October 17, 2016: Thyroid: Official Journal of the American Thyroid Association
Min Ji Bak, Van-Long Truong, Se-Yeon Ko, Xuan Ngan Giang Nguyen, Mira Jun, Soon-Gi Hong, Jong-Won Lee, Woo-Sik Jeong
BACKGROUND: The induction of cellular defensive genes such as phase II detoxifying and antioxidant enzymes is a highly effective strategy for protection against carcinogenesis as well as slowing cancer development. Transcription factor Nrf2 (nuclear factor E2-related factor 2) is responsible for activation of phase II enzymes induced by natural chemopreventive compounds. METHODS: Red ginseng oil (RGO) was extracted using a supercritical CO2 extraction system and chemical profile of RGO was investigated by GC/MS...
October 2016: Journal of Ginseng Research
Keiju Aokage, Morihito Okada, Kenji Suzuki, Shogo Nomura, Shigeki Suzuki, Norifumi Tsubokawa, Takahiro Mimae, Aritoshi Hattori, Tomoyuki Hishida, Junji Yoshida, Masahiro Tsuboi
OBJECTIVE: Exclusion of patients with a history of other cancer treatment except in situ situation has been considered to be inevitable for clinical trials investigating survival outcome. However, there have been few reports confirming these influences on surgical outcome of lung cancer patients ever. METHODS: Multi-institutional, individual data from patients with non-small cell lung cancer resected between 2000 and 2013 were collected. The patients were divided into two groups: those with a history of gastrointestinal tract cancer (GI group) and those without any history (non-GI group)...
October 15, 2016: Japanese Journal of Clinical Oncology
Nurdan Tözün, Eser Vardareli
Gastrointestinal (GI) cancers are the leading cause of mortality worldwide. These cancers are the end result of a complex interplay between gene and environment. Bacteria, parasites, and viruses have been implicated in some cancers. Recent data have put at focus the gut microbiome as the key player firing tumorigenesis. Experimental and human studies have provided evidence on the role of microbiota in cancer development. Although subject to changes in different settings such as antibiotic treatment, diet or lifestyle, our microbiome is quite stable and is capable of increasing susceptibility to cancer or decrease and halt its progression...
November 2016: Journal of Clinical Gastroenterology
Danxia Yu, Xianglan Zhang, Xiao-Ou Shu, Hui Cai, Honglan Li, Ding Ding, Zhen Hong, Yong-Bing Xiang, Yu-Tang Gao, Wei Zheng, Gong Yang
BACKGROUND: Epidemiologic evidence on dietary carbohydrates and stroke risk remains controversial. Very few prospective cohort studies have been conducted in Asian populations, who usually consume a high-carbohydrate diet and have a high burden of stroke. OBJECTIVE: We examined dietary glycemic index (GI), glycemic load (GL), and intakes of refined and total carbohydrates in relation to risks of total, ischemic, and hemorrhagic stroke and stroke mortality. DESIGN: This study included 64,328 Chinese women, aged 40-70 y, with no history of cardiovascular disease, diabetes, or cancer...
October 12, 2016: American Journal of Clinical Nutrition
Moon Kyung Joo, Jong-Jae Park, Hoon Jai Chun
Homeobox genes, including HOX and non-HOX genes, have been identified to be expressed aberrantly in solid tumors. In gastrointestinal (GI) cancers, most studies have focused on the function of non-HOX genes including caudal-related homeobox transcription factor 1 (CDX1) and CDX2. CDX2 is a crucial factor in the development of pre-cancerous lesions such as Barrett's esophagus or intestinal metaplasia in the stomach, and its tumor suppressive role has been investigated in colorectal cancers. Recently, several HOX genes were reported to have specific roles in GI cancers; for example, HOXA13 in esophageal squamous cell cancer and HOXB7 in stomach and colorectal cancers...
October 7, 2016: World Journal of Gastroenterology: WJG
Tina Melancon, Cory Bivona, Susan Klenke, Michelle Rockey, Jane Huh, Dave Henry, Dennis Grauer, Mazin Al-Kasspooles, Gary Johnson, Evelyn Reynolds, Julia Chapman
INTRODUCTION: Studies have shown the benefit of 28days of extended postoperative venous thromboembolism (VTE) prophylaxis for patients undergoing major cancer surgery in the abdomen or pelvis. We retrospectively evaluated the VTE incidence at the University of Kansas Hospital between gynecologic (GYN) cancer patients, who receive extended prophylaxis, and gastrointestinal (GI) cancer patients, who do not. METHODS: Patients were evaluated between January of 2010 and December of 2013, and VTE data for eligible patients were collected for 30 and 90days postoperatively...
October 6, 2016: Thrombosis Research
Wei Yuan, Wanyan Tang, Yibin Xie, Shaoming Wang, Yingtai Chen, Jun Qi, Youlin Qiao, Jie Ma
INTRODUCTION: Lack of diagnostic makers results in loss of operation opportunity in that most patients are diagnosed at the late stage. Pancreatic cancer (PC) has been regarded as a fatal disease with a 5-year survival rate below 10%. Therefore, the development of diagnostic biomarkers for PC is in urgent need to control the mortality of the disease. MATERIALS AND METHODS: This is a case-control study including 640 plasma samples from healthy controls (HC), patients with benign pancreatic diseases (BPD), patients with PC; and patients with other gastrointestinal (GI) cancers...
October 3, 2016: Oncotarget
Michael S Rutenberg, Moshe Meister, Pradip P Amin, Arif Hussain, Michael J Naslund, Young Kwok
PURPOSE: Patients with locally recurrent prostate cancer after definitive prostate brachytherapy have few evidence-based salvage options. We evaluate the efficacy and treatment-related side-effects of salvage external-beam radiotherapy (EBRT) after definitive prostate brachytherapy (PBT). METHODS AND MATERIALS: Eleven patients previously treated with definitive PBT and with biopsy-proven local-only recurrence received salvage reirradiation with EBRT. Genitourinary (GU) function was assessed with International Prostate Symptom Scores...
September 28, 2016: Brachytherapy
Gabriella Macchia, Savino Cilla, Francesco Deodato, Anna Ianiro, Francesco Legge, Martina Marucci, Silvia Cammelli, Anna Myriam Perrone, Pierandrea De Iaco, Maria Antonietta Gambacorta, Rosa Autorino, Vincenzo Valentini, Alessio G Morganti, Gabriella Ferrandina
PURPOSE: A prospective phase 1-2 clinical trial aimed at determining the recommended postoperative dose of simultaneous integrated boost volumetric modulated arc therapy (SIB-VMAT) in a large series of patients with high-risk and intermediate-risk endometrial cancer (HIR-EC) is presented. The study also evaluated the association between rate and severity of toxicity and comorbidities and the clinical outcomes. METHODS AND MATERIALS: Two SIB-VMAT dose levels were investigated for boost to the vaginal vault, whereas the pelvic lymph nodes were always treated with 45 Gy...
November 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Bohyun Mun, Yong Joo Park, Gi Ho Sung, Yunmi Lee, Ki Hyun Kim
The high level of interest in the cyclodepsipeptides family in the natural products stems from their diverse range of biological activities. One of the cyclodepsipeptides, (-)-bassianolide, represents rich pharmacophores with diverse biological activities including potential cytotoxicity to various cancer cells. Efficient total synthesis of (-)-bassianolide was designed and achieved in nine steps, with significant improvements in the overall yield of 46.8% (vs. 7.2% yield in previous synthesis) using Ghosez's chloroenamine reagent under mild conditions...
September 20, 2016: Bioorganic Chemistry
Rachel Martin, Winn Mathews, Steven Scarcliff
Breast cancer metastasizes to the gastrointestinal (GI) tract are exceedingly rare. The low incidence and vague presentation of GI metastasizes often cause delay in diagnosis and treatment. Here, we present a case of metastatic breast cancer causing gastric outlet obstruction and rectal obstruction.
2016: Journal of Surgical Case Reports
Donghyun Lim, Wan Gi Byun, Ja Young Koo, Hankum Park, Seung Bum Park
MicroRNAs (miRNAs) regulate gene expression by targeting protein-coding transcripts that are involved in various cellular processes. Thus, miRNA biogenesis has been recognized as a novel therapeutic target. Especially, the let-7 miRNA family is well-known for its tumor suppressor functions and is downregulated in many cancer cells. Lin28 protein binds to let-7 miRNA precursors to inhibit their maturation. Herein, we developed a FRET-based, high-throughput screening system to identify small-molecule inhibitors of the Lin28-let-7 interaction...
October 7, 2016: Journal of the American Chemical Society
Shail M Govani, Eric E Elliott, Stacy B Menees, Stephanie L Judd, Sameer D Saini, Constantinos P Anastassiades, Annette L Urganus, Suzanna J Boyce, Philip S Schoenfeld
AIM: To identify risk factors for a suboptimal preparation among a population undergoing screening or surveillance colonoscopy. METHODS: Retrospective review of the University of Michigan and Veteran's Administration (VA) Hospital records from 2009 to identify patients age 50 and older who underwent screening or surveillance procedure and had resection of polyps less than 1 cm in size and no more than 2 polyps. Patients with inflammatory bowel disease or a family history of colorectal cancer were excluded...
September 16, 2016: World Journal of Gastrointestinal Endoscopy
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