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screening gastric cancer

Kimitoshi Kubo, Noriko Kimura, Katsuhiro Mabe, Yusuke Nishimura, Mototsugu Kato
The endoscopic and pathological features of early gastric mixed adenoneuroendocrine carcinoma (MANEC), as well as its carcinogenesis, remain largely unclear. Screening esophagogastroduodenoscopy was performed on an 80-year-old man, revealing 3 superficial elevated lesions. Endoscopic submucosal dissection (ESD) was performed, and the patient was diagnosed with intramucosal gastric cancer comprising mixed adenocarcinoma and neuroendocrine tumor, well-differentiated adenocarcinoma and well-differentiated adenocarcinoma, with negative margins...
May 18, 2018: Internal Medicine
Monica Saumoy, Yecheskel Schneider, Nicole Shen, Michel Kahaleh, Reem Z Sharaiha, Shailja C Shah
BACKGROUND & AIMS: There are marked racial and ethnic differences in noncardia gastric cancer prevalence within the United States (US). Although gastric cancer screening is recommended in regions of high prevalence, screening is not routinely performed in the US. Our objective was to determine whether selected noncardia gastric cancer screening for high-risk races and ethnicities within the US is cost effective. METHODS: We developed a decision analytic Markov model with the base case of a 50-year-old person of non-Hispanic white, non-Hispanic black, Hispanic, or Asian race or ethnicity...
May 17, 2018: Gastroenterology
Jooyoung Lee, Hyosil Kim, Jae Eun Lee, Su-Jin Shin, Sejin Oh, Sungjin Kwon, Hakhyun Kim, Yoon Young Choi, Michael A White, Soonmyung Paik, Jae-Ho Cheong, Hyun Seok Kim
BACKGROUND & AIMS: Markers of the epithelial-mesenchymal transition (EMT) in gastric tumor tissues are associated with poor outcomes of patients. We performed a screen to identify pharmacologic compounds that kill gastric cancer cells with EMT-associated gene expression patterns and investigate their mechanisms. METHODS: We identified 29 gastric cancer cell lines with gene expression signature previously associated with an EMT subtype, based on data from RNA sequence analyses, and confirmed their mesenchymal phenotypes of 7 lines (Hs746T, SNU1750, MKN1, SK4, SNU484, SNU668, and YCC11), based in invasive activity and protein markers...
May 15, 2018: Gastroenterology
Weiwei Su, Bin Zhou, Guangming Qin, Zhihao Chen, Xiaoge Geng, Xiaojun Chen, Wensheng Pan
A low pepsinogen (PG) I/II ratio can be used to detect atrophic gastritis (AG). Recent research has found that the PG I/II ratio is associated with several nutritional and metabolic disorders. The aim of this study is to investigate the relationship between the PG I/II ratio and biochemical markers in a Chinese population.In total, 1896 participants in a gastric cancer screening program underwent a health screening test that included assessment of serum pepsinogens. Subjects with PG I/II < 3.0 were considered as having atrophic gastritis...
May 2018: Medicine (Baltimore)
Lei Sun, Yanli Zhang, Chao Zhang
Gastric cancer has high malignancy and early metastasis, which lead to poor survival rate. In this study, we assessed the expressions and prognostic values of MS4A family, a newly recently discovered family, by two online dataset, GEPIA and Kaplan Meier-plotter. From these results eight members, MS4A2, MS4A6, MS4A7, MS4A8, MS4A14, MS4A15, TMEM176A and TMEM176B showed positive expression in gastric cancer or normal tissues, and these genes were screened for further analysis of prognostic values. We observed that low mRNA expressions of MS4A2, MS4A7, MS4A14, MS4A15, TMEM176A and TMEM176B were correlated with better overall survival (OS) in all gastric cancer patients, while high mRNA expression of MS4A6 was observed to be associated with good prognosis...
2018: Open Medicine (Warsaw, Poland)
Michael McFarlane, Julia Brettschneider, Adrian Gelsthorpe, Sean James, David Snead, Kishore Gopalakrishnan, Hisham Mehenna, Janusz Jankowski, Ramesh Arasaradnam, Chuka Nwokolo
Background: Gastric cancer (GC) is the fourth commonest cancer worldwide, with the second highest mortality rate. Its poor mortality is linked to delayed presentation. There is a drive towards non-invasive biomarker screening and monitoring of many different types of cancer, although with limited success so far. We aimed to determine if any genes from a 32-gene panel could be used to determine GC prognosis. Methods: We carried out a retrospective study on the expression of 32 genes, selected for their proven or potential links to GC, on historic formalin fixed paraffin-embedded (FFPE) GC specimens from our unit...
April 2018: Journal of Gastrointestinal Oncology
An-Jing Zhao, Yang-Yang Qian, Hui Sun, Xi Hou, Jun Pan, Xiao Liu, Wei Zhou, Yi-Zhi Chen, Xi Jiang, Zhao-Shen Li, Zhuan Liao
BACKGROUND AND AIMS: Gastric cancer (GC) is the fourth most common cancer and the fourth leading cause of cancer death worldwide. In some Asian countries, screening esophagogastroduodenoscopy (EGD) has greatly improved the survival rate. However, patients' discomfort and the need for sedation may limit adherence to screening programs. Prior studies have shown good tolerance and good agreement of magnetically controlled capsule gastroscopy (MCCG) with EGD. This study was designed to assess the application of MCCG in GC detection in an asymptomatic population...
May 9, 2018: Gastrointestinal Endoscopy
J J Tian, W Xu, Z H Lyu, J K Ma, P Cui, N Sa, H Y Cao
Objective: To evaluate the usefullness of flexible esophagoscopy and chromoendoscopy with Lugol's solution in the detection of synchronous esophageal neoplasm in patients with hypopharyngeal squamous cell carcinoma (HSCC). Methods: A retrospective review of 96 cases with HSCC that received surgical treatment from March 2016 to March 2017 was accomplished. In these patients, the site of origin were pyriform sinus ( n =75), posterior pharyngeal wall ( n =11) and postcricoid ( n =10). Esophagoscopy was prospectively performed on all patients before treatment for HSCC...
April 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
Tao Wang, Hong Wu, Sha Liu, Zengjie Lei, Zhongyi Qin, Liangzhi Wen, Kai-Jun Liu, Xing-Wei Wang, Yan Guo, Qin Liu, Lei Liu, Jun Wang, Li Lin, Chengyi Mao, Xiangfeng Zhu, Hualiang Xiao, Xiuwu Bian, Dongfeng Chen, Chuan Xu, Bin Wang
Tumor growth is fueled by subset of cells with stem cell properties (Cancer stem cells, CSCs). While persistent activation of Wnt/β-catenin signaling confers CSC properties, it remains unclear how epigenetic modifications regulate Wnt target genes to dictate their self-renewal. Here, we report a novel Wnt-responsive epigenetic switch for CSC maintenance through activating the stem cell transcription factor ASCL2 in gastric carcinoma (GC). We characterize ASCL2-expressing (ASCL2+ ) GC cells as a subset of Wnt-responsive CSCs that depend on ASCL2 for self-renewal...
May 7, 2018: Cancer Letters
Hui Guo, Lianmei Zhao, Bianhua Shi, Jiayu Bao, Dexian Zheng, Baoguo Zhou, Juan Shi
Recently, long noncoding RNAs (lncRNAs) have been reported to play a pivotal role in the occurrence and progression of cancer because of their unique characteristics and have therefore become an active area of cancer research. The object of this study was to screen lncRNAs that are dysregulated in gastric cancer and to investigate their potential functions. Global expression of lncRNAs in gastric cancer and adjacent normal tissues of patients was profiled using a microarray assay. We identified an lncRNA (GALNT5 uaRNA, UTR-associated RNA) that is derived from the 3'-UTR of GALNT5...
May 10, 2018: Oncogene
Ting-Hin Ho, Justine Sitz, Qingtang Shen, Ariane Leblanc-Lacroix, Eric I Campos, Ivan Borozan, Edyta Marcon, Jack Greenblatt, Amelie Fradet-Turcotte, Dong-Yan Jin, Lori Frappier
To replicate and persist in human cells, linear double-stranded (ds) DNA viruses, such as Epstein-Barr virus (EBV), must overcome the host DNA damage response (DDR) that is triggered by the viral genomes. Since this response is necessary to maintain cellular genome integrity, its inhibition by EBV is likely an important factor in the development of cancers associated with EBV infection, including gastric carcinoma. Here we present the first extensive screen of EBV proteins that inhibit dsDNA break signaling...
May 9, 2018: Journal of Virology
Natalia Partain, Ali Mokdad, Nancy Puzziferri, Jessica Porembka, Stephen Seiler, Alana Christie, Deborah Farr, Aeisha Rivers, A Marilyn Leitch, Rachel Wooldridge, James Huth, Roshni Rao
BACKGROUND: Obesity and high radiologic breast density independently increase breast cancer risk. We evaluated the effect of surgical weight loss on mammographic density (MD). METHODS: Patients undergoing bariatric surgery and screening mammography (MG) were identified, data regarding demographics, comorbidities, calculated and genetic breast cancer risk was collected. Patients had a MG before and after surgery. Fellowship-trained breast radiologists assigned Breast Imaging Reporting and Data System density categories...
May 9, 2018: BMC Medical Imaging
Jian Chen, Xiuwen Wang, Bing Hu, Yifu He, Xiaojun Qian, Wei Wang
Background: Gastric cancer (GC) is one of the most common cancers with high mortality globally. However, the molecular mechanisms of GC are unclear, and the prognosis of GC is poor. Therefore, it is important to explore the underlying mechanisms and screen for novel prognostic markers and treatment targets. Methods: The genetic and clinical data of GC patients in The Cancer Genome Atlas (TCGA) was analyzed by weighted gene co-expression network analysis (WGCNA)...
2018: PeerJ
Du-Yi Pan, Xiao-Qing Zeng, Gui-Fen Ma, Jing Gao, Na Li, Qing Miao, Jing-Jing Lian, Hu Zhou, Li-Li Xu, Shi-Yao Chen
Forkhead box protein 3 (FOXP3) is expressed in numerous types of tumor cell and is associated with tumor progression and prognosis. A previous study reported that FOXP3 inhibited cellular proliferation and induced apoptosis of gastric cancer (GC) cells by activating the apoptosis signaling pathway. In the present study, label-free quantitative proteomic analysis and chromatin immunoprecipitation-polymerase chain reaction (ChIP-PCR) was performed to investigate the mechanism by which the anticancer role of FOXP3 was mediated and the proteins that with which it may interact...
May 2018: Oncology Letters
Aidan Huang, Meiyu Zhang, Taijie Li, Xue Qin
BACKGROUND: To use the tandem mass tags (TMT) based quantitative proteomics technique and bioinformatics method to identify potential serum diagnostic biomarkers for gastric cancer (GC). METHODS: This study enrolled GC patients and healthy control subjects. Mixed serum samples were pooled with 10 individual samples. The high-abundance proteins depleted serum proteins were collected by removing abundance albumin and immunoglobulin G (IgG). After desalting and ultrafiltration, the trypsin digested proteins were analyzed using TMT based quantitative proteomics system...
May 1, 2018: Clinical Laboratory
Zhen Huang, Xiang-Ming Zhai, Hao Wang, Qiao-Ting Deng, Kun Li, Bi-Sen Liu, Gang Wang, Tian-Cai Liu
In clinical diagnosis of cancer, immunology assay with single tumor marker often lead to a false and missed inspection. A quantitative method with a high degree of accuracy, sensitivity, and effectiveness is required for its diagnosis. We developed a dual-label time-resolved fluoroimmunoassay (TRFIA) to simultaneously detect carbohydrate antigen 125 (CA125) and carcinoembryonic antigen (CEA) in human serum to aid the diagnosis and prognosis of gastric cancer. The method was based on a microplate sandwich immunoassay using europium-labeled anti-CA125 antibodies and samarium-labeled anti-CEA antibodies as fluorescent reporters...
May 2, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
Adamu Ishaku Akyala, Maikel P Peppelenbosch
Ever since its initial discovery in Drosophila, hedgehog signaling has been linked to foregut development, The mammalian genome expresses three Hedgehog paralogues, sonic hedgehog (Shh), Indian Hedgehog, and desert hedgehog. In the mucosa of the embryonic and adult foregut, Shh expression is the highest. It has now become clear that hedgehog signaling is of pivotal importance in gastric homeostasis. Aberrant activation of hedgehog signaling is associated with a range of pathological consequences including various cancers...
January 2018: Genes & Cancer
Yu Jin Kim, Ki-Chul Hwang, Sang Woo Kim, Yong Chan Lee
Although miRNA markers have been identified for the pathological development of gastric adenocarcinoma (GAC), the underlying molecule mechanism are still not fully understood. Moreover, some gastric adenoma/dysplasia may progress to GAC. In this study, the miRNA expression profiles in normal and paired low-/high-grade dysplasia were analyzed using Affymetrix Gene-Chip miRNA arrays. Of the total 2578 mature miRNA probe sets, ~1600 showed positive signals when the between normal and paired low-/high-grade dysplasia were compared...
2018: International Journal of Medical Sciences
Xing Zhang, Meng Li, Shuntai Chen, Jiaqi Hu, Qiujun Guo, Rui Liu, Honggang Zheng, Zhichao Jin, Yuan Yuan, Yupeng Xi, Baojin Hua
BACKGROUND & AIMS: It is not clear how endoscopic screening for gastric cancer affects incidence or mortality. We performed a systematic review and meta-analysis to evaluate the relationship between endoscopic screening for gastric cancer and mortality and incidence. METHODS: We conducted a systematic search of PubMed and EMBASE for published cohort and case-control studies of adults without gastric cancer who underwent endoscopic screening at least once that included a comparator and reported outcomes of mortality or incidence, through March 8, 2018...
April 30, 2018: Gastroenterology
Xian-Zhe Chen, Cheng-Zhi Huang, Wei-Xian Hu, Ying Liu, Xue-Qing Yao
Objective: Gastroscopy combined with gastric mucosa biopsies is currently regarded as a gold standard for diagnosis of gastric cancer. However, its application is restricted in clinical practice due to its invasive property. A new noninvasive population screening process combining the assay of anti-Helicobacter pylori antibody and serum pepsinogen (PG) (ABC method) is adopted to recognize the high-risk patients for further endoscopy examination, avoiding the unnecessary gastroscopy for most population and saving the cost consumption for mass screening annually...
May 20, 2018: Chinese Medical Journal
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