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Early gastric cancer

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https://www.readbyqxmd.com/read/27905872/knockdown-of-ggct-inhibits-cell-proliferation-and-induces-late-apoptosis-in-human-gastric-cancer
#1
Wenjie Zhang, Lei Chen, Honggang Xiang, Chunhua Hu, Weibin Shi, Ping Dong, Wenjie Lv
BACKGROUND: Gamma glutamylcyclotransferase (GGCT) has been proved to be involved in various cancers, but the biological function of GGCT in gastric cancer is still largely unknown. METHODS: The expression level of GGCT was evaluated by informatics analyses based on the Oncomine database. GGCT gene was then effectively knocked down via lentivirus mediated short hairpin RNA (shRNA) system. Then a series of functional assays, including MTT, colony formation and flow cytometry analysis were conducted on gastric cancer cells following GGCT knockdown...
December 1, 2016: BMC Biochemistry
https://www.readbyqxmd.com/read/27905696/the-curative-effect-of-early-use-of-enteral-immunonutrition-in-postoperative-gastric-cancer-a-meta-analysis
#2
Hu Qiang, Lu Hang, Sun Y Shui
INTRODUCTION: It's uncertain about the clinical efficacy which early enteral immunonutrition in postoperative gastric cancer patients,and this study attempts to assess its clinical efficacy. EVIDENCE ACQUISITION: Use the search engine database incuding the Pubmed,the Cochrane library, Web of Science, Medline,and Embase,which there are comparative studies of early efficacy of enteral immune nutrition and standard enteral nutrition after gastric cancer operation.According to the studies,we use the RevMan 5...
December 1, 2016: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/27895391/characteristics-of-gastric-cancer-detected-within-1-year-after-successful-eradication-of-helicobacter-pylori
#3
Toshihiro Nishizawa, Hidekazu Suzuki, Toru Arano, Shuntaro Yoshida, Hiroharu Yamashita, Keisuke Hata, Takanori Kanai, Naohisa Yahagi, Osamu Toyoshima
Gastric cancers are sometimes diagnosed in patients who have successfully undergone Helicobacter pylori (H. pylori) eradication. We analyzed the clinicopathological features of gastric cancers detected after eradication to clarify their characteristics. We reviewed 31 patients with 34 cases of gastric cancer detected after successful H. pylori eradication. Clinicopathological characteristics analyzed included interval since eradication, interval since last endoscopy, tumor size, and depth of invasion. Patients were classified into two groups: early detection (<1 year since eradication) and delayed detection (≥1 year since eradication)...
November 2016: Journal of Clinical Biochemistry and Nutrition
https://www.readbyqxmd.com/read/27894325/identification-of-col1a1-and-col1a2-as-candidate-prognostic-factors-in-gastric-cancer
#4
Jun Li, Yuemin Ding, Aiqing Li
BACKGROUND: The role of type I collagen, composed of collagen type I alpha 1 (COL1A1) and collagen type I alpha 2 (COL1A2), has been studied in several cancers. However, the expression of COL1A1 and COL1A2 in malignant, premalignant, and normal gastric tissues and their clinical significances in gastric cancer have not been elucidated. METHODS: Real-time quantitative PCR was performed in 55 malignant, 27 premalignant, and 19 normal tissues to measure COL1A1 and COL1A2 messenger RNA (mRNA) expression, and the correlations between COL1A1 and COL1A2 expression and clinicopathological parameters and patients' survival rate were analyzed...
November 29, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27891343/expression-of-alpha-methylacyl-coa-racemase-amacr-in-gastric-adenocarcinoma-and-its-correlation-with-helicobacter-pylori-infection
#5
Yamini Jindal, Anshul Singh, Ravikant Kumar, Kachnar Varma, Vatsala Misra, Sri Prakash Misra, Manisha Dwivedi
INTRODUCTION: Gastric cancer develops in a multistep progression and is determined by genetic and environmental factors. Over-expression of Alpha Methylacyl CoA Racemase (AMACR) is useful in diagnosis of prostate cancer. There is plenty of genetic alteration that occurs in gastric adenocarcinoma. The present study was planned to determine if AMACR can be used as a diagnostic marker in gastric adenocarcinoma similar to prostate cancer. AIM: To study the expression of AMACR in gastric adenocarcinoma and correlate its expression with density of Helicobacter pylori...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27889547/clinical-outcomes-of-non-curative-endoscopic-submucosal-dissection-with-negative-resected-margins-r0-resection-for-gastric-cancer
#6
Yosuke Toya, Masaki Endo, Shotaro Nakamura, Risaburo Akasaka, Takashi Kosaka, Shunichi Yanai, Keisuke Kawasaki, Keisuke Koeda, Tamotsu Sugai, Takayuki Matsumoto
BACKGROUND AND AIMS: There has been little information about the long-term outcomes of patients with early gastric cancer (EGC) treated by non-curative endoscopic submucosal dissection (ESD) with negative resected margins (R0 resection). We aimed to compare clinical outcomes of non-curative ESD with R0 resection between patients who underwent additional gastrectomy and those who did not. METHODS: Among EGC patients treated by ESD from 2000 to 2015, 66 patients were treated by non-curative ESD with R0 resection...
November 23, 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27884752/quantitative-proteomic-analysis-reveals-that-proteins-required-for-fatty-acid-metabolism-may-serve-as-diagnostic-markers-for-gastric-cancer
#7
Zhen Jiang, Hongchun Shen, Bo Tang, Qin Yu, Xingli Ji, Li Wang
BACKGROUND: Gastric cancer is one of the leading causes of cancer-related deaths worldwide. The sensitivities and specificities of current biomarkers for gastric cancer are insufficient for clinical detection, and new diagnostic tests are therefore urgently required. METHODS: A discovery set of gastric cancer and adjacent normal tissues were analyzed for differentially expressed proteins by labeling of peptide digests with isobaric tag for relative and absolute quantitation (iTRAQ) reagents followed by liquid chromatography-electrospray ionization-tandem mass spectrometry...
November 21, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27877009/characteristics-of-gastric-cancer-recurrence-five-or-more-years-after-curative-gastrectomy
#8
Chang-Hyun Shin, Woo-Yong Lee, Seung-Woo Hong, Yeo-Goo Chang
OBJECTIVE: To investigate the characteristics of recurrences that occurred 5 or more years after curative resection for gastric cancer. METHODS: We analyzed recurrences among 1,299 patients with gastric cancer who underwent curative operations at the Department of Surgery, Inje University Seoul Paik Hospital between September 1998 and December 2002. Recurrences were classified as within 2 years (early), 2-5 years (intermediate), and more than 5 years (late) after gastrectomy...
October 2016: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/27875523/a-protein-fragment-derived-from-dna-topoisomerase-i-as-a-novel-tumour-associated-antigen-for-the-detection-of-early-stage-carcinoma
#9
Shang-Mian Yie, Shang-Rong Ye, Xiao-Li Ma, Ke Xie, Jian-Bo Zhang, Mei Cao, Xu He, Zhen-Bo Hu, Cheng-Lu Yang, Jia Zhang, Jie Zeng
BACKGROUND: The production of autoantibodies against tumour-associated antigens (TAAs) is believed to reflect greater immunologic reactivity in cancer patients and enhanced immune surveillance for cancer cells. Over the past few decades, a number of different TAAs and their corresponding autoantibodies have been investigated. However, positive frequency of autoantibody detection in cancer patients has been relatively low. Here we describe a novel TAA that was a fragment derived from human DNA-topoiomerase I and an autoantibody against the novel TAA with relatively high positive frequency in the sera of early-stage non-small-cell lung cancer (NSCLC), gastric cancer (GC), colorectal cancer (CRC) and oesophageal squamous cell carcinoma (ESCC)...
November 22, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27875094/laparoscopic-radical-gastrectomy-for-resectable-advanced-gastric-cancer-within-enhanced-recovery-programs-a-prospective-randomized-controlled-trial
#10
Xia Mingjie, Zhang Luyao, Tang Ze, Zhao YinQuan, Wang Quan
BACKGROUND: Enhanced recovery programs have become an important focus of perioperative management. A few studies have demonstrated the efficacy of an enhanced recovery after surgery (ERAS, which includes optimized pain control, restricted I.V. fluids, early initiation of postoperative oral feeding, and enforced mobilization) protocol in patients undergoing radical gastrectomy. We investigated the feasibility and safety of laparoscopic radical gastrectomy within ERAS programs. METHODS: In this single-center prospective randomized controlled trial conducted between September 2013 and August 2014, 149 consecutive locally advanced gastric cancer patients (T2-4, any N, M0) diagnosed by the CT scanning were allocated to either ERAS group (N = 73) or conventional pathway group (N = 76)...
November 22, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27871804/additional-surgical-resection-after-endoscopic-mucosal-dissection-for-early-gastric-cancer-a-medium-sized-hospital-s-experience
#11
Bunzo Nakata, Masashige Tendo, Masatsugu Okuyama, Kenichi Nakahara, Hirotaka Ishizu, Go Masuda, Tomohiro Lee, Takeshi Hori, Masahiko Ohsawa, Hiroshi Sato, Tetsuro Ishikawa
PURPOSE: In Japan, the majority of early gastric cancers (EGCs) are now treated with endoscopic submucosal dissection (ESD). Patients with non-curative lesions treated by ESD are advised to undergo additional surgical resection (ASR) based on guidelines from the Japan Gastroenterological Endoscopy Society (JGES) and Japanese Gastric Cancer Association (JGCA). However, many studies have demonstrated that residual cancer and lymph node metastasis are only rarely found in ASR specimens. Here we retrospectively analyzed the conditions that could enable the avoidance of unnecessary ASR...
November 15, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27871161/helicobacter-pylori-eradication-modulates-aberrant-cpg-island-hypermethylation-in-gastric-carcinogenesis
#12
Jeongmin Choi, Sang Gyun Kim, Byeong Gwan Kim, Seong Joon Koh, Ji Won Kim, Kook Lae Lee
Background/Aims: Helicobacter pylori infection induces aberrant DNA methylation in gastric mucosa. We evaluated the long-term effect of H. pylori eradication on promotor CpG island hypermethylation in gastric carcinogenesis. Methods: H. pylori-positive patients with gastric adenoma or early gastric cancer who underwent endoscopic resection were enrolled. According to H. pylori eradication after endoscopic resection, the participants were randomly assigned to H. pylori eradication or non-eradication group...
November 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/27868244/ddw-2016-review-advances-in-therapeutic-upper-gastrointestinal-endoscopy
#13
REVIEW
Shannon Melissa Chan, Baldwin Yeung, Philip Wai Yan Chiu
This editorial provides a review of the lectures and abstracts presented at Digestive Disease Week 2016 in San Diego on advances in therapeutic upper gastrointestinal procedures. There were a significant number of reports on expanded indications for endoscopic submucosal dissection (ESD) of early gastric cancers, advanced endoscopic techniques for resection including submucosal tunnel endoscopic resection (STER) and endoscopic full thickness resection (EFTR), per oral endoscopic myotomy (POEM), and novel endoscopic techniques including antireflux mucosectomy (ARMS) as well as endoscopic suturing...
November 21, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/27867015/cmtm3-decreases-egfr-expression-and-egf-mediated-tumorigenicity-by-promoting-rab5-activity-in-gastric-cancer
#14
Wanqiong Yuan, Baocai Liu, Xiaolin Wang, Ting Li, Hui Xue, Xiaoning Mo, Shuli Yang, Shigang Ding, Wenling Han
CMTM3 (CKLF-like MARVEL transmembrane domain containing 3), a tumor suppressor gene, is involved in multiple types of malignancies. CMTM3 knockdown promotes metastasis of gastric cancer via the STAT3/Twist1/EMT signaling pathway. Strong epidermal growth factor receptor1 (EGFR) expression is significantly associated with tumor metastasis and poor outcomes of gastric cancer patients. In this paper, we show that CMTM3 suppresses epidermal growth factor (EGF)-mediated migration and STAT3 signaling, downregulates EGFR expression via accelerating EGFR degradation in gastric cancer cells...
November 17, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27864121/gene-amplification-of-ccne1-ccnd1-and-cdk6-in-gastric-cancers-detected-by-multiplex-ligation-dependent-probe-amplification-and-fluorescence-in-situ-hybridization
#15
Akishi Ooi, Takeru Oyama, Ritsuko Nakamura, Ryousuke Tajiri, Hiroko Ikeda, Sachio Fushida, Yoh Dobashi
New and effective treatments for advanced gastric cancer are urgently needed. Cyclins E and D1 form a complex with cyclin-dependent kinase 2 (CDK2), 4 or 6 to regulate G1-S transition. The G1-S regulatory genes encoding cyclin E (CCNE1), cyclin D1 (CCND1) and CDK6 (CDK6) are frequently amplified in gastric cancer and may therefore influence molecularly targeted therapies against ERBB2 or EGFR when co-amplified. A total of 179 formalin-fixed and paraffin-embedded gastric cancer specimens were examined for these gene amplifications by multiplex ligation-dependent probe amplification (MLPA) and fluorescence in situ hybridization (FISH)...
November 15, 2016: Human Pathology
https://www.readbyqxmd.com/read/27862291/probe-based-confocal-laser-endomicroscopy-in-the-margin-delineation-of-early-gastric-cancer-for-endoscopic-submucosal-dissection
#16
Jun Chul Park, Yehyun Park, Hyun Ki Kim, Jeong-Hyeon Jo, Chan Hyuk Park, Eun Hye Kim, Da Hyun Jung, Hyunsoo Chung, Sung Kwan Shin, Sang Kil Lee, Yong Chan Lee
BACKGROUND AND AIM: We evaluated pCLE in the margin delineation of early gastric cancer (EGC) for endoscopic submucosal dissection (ESD) in comparison with white-light imaging with chromoendoscopy (CE). METHODS: We conducted a prospective, randomized controlled study from November 2013 to October 2014 in a tertiary referral hospital. A total of 101 patients scheduled for ESD due to differentiated EGC were randomized into pCLE and CE groups (pCLE 51, CE 50). Markings were made by electrocautery at the proximal and distal tumor margins, as determined by either pCLE or CE...
November 9, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27861374/a-nomogram-for-predicting-the-likelihood-of-lymph-node-metastasis-in-early-gastric-signet-ring-cell-carcinoma-a-single-center-retrospective-analysis-with-external-validation
#17
Chun Guang Guo, Yan Jia Chen, Hu Ren, Hong Zhou, Ju Fang Shi, Xing Hua Yuan, Ping Zhao, Dong Bing Zhao, Gui Qi Wang
Treatment algorithm has not been established for early gastric cancer with signet ring cell carcinoma (SRC), which has a reported low rate of lymph node metastasis (LNM) similar to differentiated cancer. A cohort of 256 patients with early gastric SRC at our center between January 2002 and December 2015 were retrospectively reviewed. Multivariate logistic regression analysis was used to determine the independent factors of LNM. A nomogram for predicting LNM was constructed and internally validated. Additional external validation was performed using the database from Cancer Institute Ariake Hospital in Tokyo (n = 1273)...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27854242/the-future-prospects-of-immune-therapy-in-gastric-and-esophageal-adenocarcinoma
#18
REVIEW
Walid L Shaib, Jean Paul A Nammour, Harpaul Gill, Mayur Mody, Nabil F Saba
The prognosis of esophageal cancers is poor and novel approaches are urgently needed. Despite improvements in outcomes with transtuzumab and ramucirumab, these improvements added an average of only 2 to 3 months with a median overall survival reported to be around 1 year. Comprehensive genomic sequencing has defined some molecular alterations with potential targets, but the majority of patients still do not benefit from druggable targets. Breakthroughs in immune checkpoint blockade have provided new therapeutic options in many cancers...
November 14, 2016: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/27854031/evaluation-of-18-f-fluorothymidine-positron-emission-tomography-18-f-flt-pet-ct-methodology-in-assessing-early-response-to-chemotherapy-in-patients-with-gastro-oesophageal-cancer
#19
R Sharma, P Mapelli, G B Hanna, R Goldin, D Power, A Al-Nahhas, S Merchant, R Ramaswami, A Challapalli, T Barwick, E O Aboagye
BACKGROUND: 3'-Deoxy-3'-[(18)F]fluorothymidine ([(18)F]FLT) PET has limited utility in abdominal imaging due to high physiological hepatic uptake of a tracer. We evaluated [(18)F]FLT-PET/CT combined with a temporal-intensity information-based voxel-clustering approach termed kinetic spatial filtering (KSF) to improve tumour visualisation in patients with locally advanced and metastatic gastro-oesophageal cancer and as a marker of early response to chemotherapy. Dynamic [(18)F]FLT-PET/CT data were collected before and 3 weeks post first cycle of chemotherapy...
December 2016: EJNMMI Research
https://www.readbyqxmd.com/read/27853672/novel-antibody-therapeutics-targeting-mesothelin-in-solid-tumors
#20
Xiao-Yan Zhao, Babu Subramanyam, Nenad Sarapa, Sven Golfier, Harald Dinter
ABSTRACT BACKGROUND: Monoclonal antibodies have become attractive clinical anti-cancer drugs in the last 3 decades due to their targeting specificity and suitable pharmacokinetic properties. Mesothelin is a tumor-associated antigen with limited expression in normal tissues. It is frequently over-expressed on the cell membrane of a number of epithelial malignancies (e.g. mesothelioma, pancreatic, ovarian, lung, triple negative breast and gastric cancers). METHODS: Mesothelin is validated as a suitable antibody target for cancer therapy...
October 2016: Clinical Cancer Drugs
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