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https://www.readbyqxmd.com/read/27922690/microrna-152-inhibits-tumor-cell-growth-by-directly-targeting-rtkn-in-hepatocellular-carcinoma
#1
Jiejing Zhou, Yanjun Zhang, Yuhong Qi, Dequan Yu, Qiuju Shao, Jun Liang
Hepatocellular carcinoma (HCC) is the most common form of adult liver cancer and accounts for approximately 90% of all cases of primary liver cancer annually. Rhotekin (RTKN), which functions as a cancer promoter, can be frequently detected in many human cancers, including gastric cancer, colorectal carcinoma and bladder carcinoma. The aim of this study was to investigate the role of RTKN in HCC. Using HCC cells and tissues from patients with liver cancer, we demonstrated that RTKN was significantly increased in HCC...
December 5, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27920769/transcriptional-profiling-of-type-ii-toxin-antitoxin-genes-of-helicobacter-pylori-under-different-environmental-conditions-identification-of-hp0967-hp0968-system
#2
María G Cárdenas-Mondragón, Miguel A Ares, Leonardo G Panunzi, Sabino Pacheco, Margarita Camorlinga-Ponce, Jorge A Girón, Javier Torres, Miguel A De la Cruz
Helicobacter pylori is a Gram-negative bacterium that colonizes the human gastric mucosa and is responsible for causing peptic ulcers and gastric carcinoma. The expression of virulence factors allows the persistence of H. pylori in the stomach, which results in a chronic, sometimes uncontrolled inflammatory response. Type II toxin-antitoxin (TA) systems have emerged as important virulence factors in many pathogenic bacteria. Three type II TA systems have previously been identified in the genome of H. pylori 26695: HP0315-HP0316, HP0892-HP0893, and HP0894-HP0895...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27920649/hepatoid-carcinoma-of-the-pancreas-case-report-next-generation-tumor-profiling-and-literature-review
#3
James M Chang, Nitin N Katariya, Dora M Lam-Himlin, Danielle J Haakinson, Ramesh K Ramanathan, Thorvardur R Halfdanarson, Mitesh J Borad, Rahul Pannala, Douglas Faigel, Adyr A Moss, Amit K Mathur
Fewer than 25 cases of hepatoid carcinoma of the pancreas have been reported in the literature. We present a case in a 61-year-old male with a remote history of Hodgkin's lymphoma and gastric neuroendocrine cell hyperplasia. On surveillance endoscopic ultrasound, an 8 × 5 mm cystic lesion was seen in the tail of the pancreas. MRI showed a focal pancreatic duct cut-off with mild ductal dilation. Fine needle aspiration was performed, which was concerning for acinar cell carcinoma. The patient underwent distal pancreatectomy and recovered uneventfully...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27920640/intussuscepting-ampullary-adenoma-an-unusual-cause-of-gastric-outlet-obstruction-leading-to-cavitating-lung-lesions
#4
Simon J McCluney, Vickna Balarajah, Alex Giakoustidis, Joanne Chin-Aleong, Bryony Lovett, Hemant M Kocher
Ampullary adenomas are a rare clinical entity, occurring at a rate of 0.04-0.12% in the general population. They are premalignant lesions which have the capability to progress to malignancy, and they should be excised if they are causing immediate symptoms and/or are likely to degenerate to carcinoma. Intestinal intussusception in adults is rare and, unlike in children, is often due to a structural pathology. Intussuscepting duodenal/ampullary adenomas have been reported in the literature on 13 previous occasions, however never before with this presentation...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27919963/expression-levels-of-piwi-interacting-rna-pir-823-are-deregulated-in-tumor-tissue-blood-serum-and-urine-of-patients-with-renal-cell-carcinoma
#5
Robert Iliev, Michal Fedorko, Tana Machackova, Hana Mlcochova, Marek Svoboda, Dalibor Pacik, Jan Dolezel, Michal Stanik, Ondrej Slaby
BACKGROUND: Renal cell carcinoma (RCC) is the most common neoplasm of adult kidney accounting for about 3% of adult malignancies. P-Element induced wimpy testis (PIWI)-interacting RNAs (piRNAs) are a new class of naturally occurring, short non-coding RNAs involved in silencing of transposable elements and in sequence-specific chromatin modifications. There were preliminary data published indicating that piR-823 expression is deregulated in circulating tumor cells and tumor tissue in gastric and kidney cancer, respectively...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27916296/ampk%C3%AE-is-suppressed-in-bladder-cancer-through-macrophage-mediated-mechanisms
#6
Stavros Kopsiaftis, Poornima Hegde, John A Taylor, Kevin P Claffey
Bladder cancer presents as either low- or high-grade disease, each with distinct mutational profiles; however, both display prominent mTORC1 activation. One major negative regulator of mTORC1 is AMPK, which is a critical metabolic regulator that suppresses cellular growth in response to metabolic stress by negatively regulating mTORC1. Alterations in the activation and protein levels of AMPK have been reported in breast, gastric, and hepatocellular carcinoma. To investigate whether AMPK suppression is responsible for mTOR activation in bladder cancer, the levels of AMPKα were quantified in a cohort of primary human bladder cancers and adjacent nontumor tissues...
December 2016: Translational Oncology
https://www.readbyqxmd.com/read/27914159/-molecular-mechanisms-for-adhesion-and-colonization-of-human-gastric-mucosa-by-helicobacter-pylori-and-its-clinical-implications
#7
REVIEW
Elisabete Coelho, Ana Magalhães, Mário Dinis-Ribeiro, Celso A Reis
INTRODUCTION: Helicobacter pylori infection is very prevalent worldwide and is associated with the progression of the gastric carcinogenesis cascade, being one of the main risk factors for the development of gastric carcinoma. Several factors are determinant for the infection and for the development of gastric disease, including environmental factors, host genetic factors and virulence factors of the bacteria. MATERIAL AND METHODS: In this review, we present an overview of the current knowledge on the determinants of the infection and on the recently described molecular mechanisms of Helicobacter pylori adhesion to the gastric mucosa, as well as its possible future therapeutic application...
August 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27911861/pyruvate-kinase-m2-pkm2-expression-correlates-with-prognosis-in-solid-cancers-a-meta-analysis
#8
Haiyan Zhu, Hui Luo, Xuejie Zhu, Xiaoli Hu, Lihong Zheng, Xueqiong Zhu
Pyruvate kinase M2 (PKM2) is the key enzyme in the Warburg effect and plays a central role in cancer cell metabolic reprogramming. Recently, quite a few studies have investigated the correlation between PKM2 expression and prognosis in multiple cancer patients, but results were inconsistent. We therefore performed a meta-analysis to explore the prognostic value of PKM2 expression in patients with solid cancer. Here twenty-seven individual studies from 25 publications with a total of 4796 cases were included to explore the association between PKM2 and overall survival (OS) or disease-free survival (DFS)/ progression-free survival (PFS)/ recurrent-free survival (RFS) in subjects with solid cancer...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27909899/obesity-and-risk-of-cancer-an-introductory-overview
#9
Tobias Pischon, Katharina Nimptsch
The prevalence of obesity has increased substantially in the past in almost all countries of the world, and a further increase is expected for the future. Besides the well-established effects on type 2 diabetes and cardiovascular disease, there is convincing evidence today that obesity also increases the risk of several types of cancer, including colorectal cancer, postmenopausal breast cancer, endometrial cancer, renal cell carcinoma, esophageal adenocarcinoma, pancreatic cancer, and liver cancer. Obesity probably also increases the risk of ovarian cancer, advanced prostate cancer, gallbladder cancer, and gastric cardia cancer...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27904780/low-expression-of-rbms3-and-sfrp1-are-associated-with-poor-prognosis-in-patients-with-gastric-cancer
#10
Tao Zhang, Youliang Wu, Zheng Fang, Qiang Yan, Shangxin Zhang, Ruochuan Sun, Junaid Khaliq, Yongxiang Li
RNA binding motif, single stranded interacting protein 3 (RBMS3) has been reported as a tumor suppressor gene (TSG) in some squamous carcinoma. However, its expression levels and clinical significance in gastric cancer (GC) remains unclear. Secreted frizzled-related protein 1 (SFRP1) plays a role of tumor suppressor in many cancers by inhibiting Wnt/β-catenin pathway. Nevertheless, its expression levels and clinical significance in GC are in dispute. In this study, quantitative real-time PCR and Western Blot were used to measure the mRNA and protein level of RBMS3 and SFRP1 in 23 fresh GC and corresponding normal tissues...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27904704/lncrna-sox2ot-overexpression-serves-as-a-poor-prognostic-biomarker-in-gastric-cancer
#11
Yuanyuan Zhang, Rui Yang, Jianchun Lian, Haiyan Xu
Sox2 overlapping transcript (Sox2ot) serves as an unfavorable prognostic factor in lung cancer and hepatocellular carcinoma, but the clinical significance and biological function of Sox2ot in gastric cancer is still unknown. The objective of our research is to explore the significance of Sox2ot in gastric cancer. Quantitative real-time polymerase chain reaction was performed to determine Sox2ot in gastric cancer tissues and cell lines. Furthermore, the Sox2ot status in one hundred and thirty two gastric cancer samples was detected to analyzed correlations between Sox2ot and clinicopathological features...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27899979/aspirin-inhibits-the-proliferation-and-migration-of-gastric-cancer-cells-in-p53-knockout-mice
#12
Xue-Fu Li, Bing-Zhong Xu, Shi-Zhen Wang
The aim of the present study was to investigate the effect of aspirin on the cell proliferation and migration of gastric cancer cells in p53-knockout mice. Twenty p53(-/-) male mice aged 6 to 7 weeks, with an average weight of 20±3 g were used. The model of gastric cancer was established by the implantation of a mouse forestomach carcinoma cell line, subcutaneously, at the back of the neck, and then the mice were randomly divided into two groups after establishment of the model (control group, n=10; experimental group, n=10)...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27898655/overexpression-of-pbk-topk-relates-to-tumour-malignant-potential-and-poor-outcome-of-gastric-carcinoma
#13
Takuma Ohashi, Shuhei Komatsu, Daisuke Ichikawa, Mahito Miyamae, Wataru Okajima, Taisuke Imamura, Jun Kiuchi, Toshiyuki Kosuga, Hirotaka Konishi, Atsushi Shiozaki, Hitoshi Fujiwara, Kazuma Okamoto, Hitoshi Tsuda, Eigo Otsuji
BACKGROUND: PDZ-binding kinase/T-LAK cell-originated protein kinase (PBK/TOPK) is a serine-threonine kinase and overexpressed in various types of cancer by inhibiting the transactivation activities of p53 and PTEN. We tested whether PBK/TOPK acts as a cancer-promoting gene through its activation/overexpression in gastric cancer (GC). METHODS: We analysed five GC cell lines and 144 primary tumours, which were curatively resected in our hospital between 2001 and 2003...
November 29, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27894812/enhanced-legumain-recognition-and-nir-controlled-released-of-cisplatin-indocyanine-nanosphere-against-gastric-carcinoma
#14
Tianyi Shi, Lianshuai Gu, Yu Sun, Senlin Wang, Chaoqun You, Xiangyang Zhang, Jin Zhu, Baiwang Sun
Cisplatin-therapy has faced limitations in the gastric cancer therapy. To settle the bottleneck, enhanced specificity and controlled-release property are choosen. We synthesize cisplatin and indocyanine green (ICG) loaded PLGA-(DSPE-PEG2000) nanoparticles, which is abbreviated as CINPs. And we conjugate the Gly-Cys-Gly-Ala-Ala-Asn-Leu (GCGAANL) heptapeptide upon the surface of CINPs, the product is abbreviated as ACINPs. ACINPs with nearly 110nm exhibit good monodispersity and size stability. The EE (efficiency of encapsulation) and LE (loading of encapsulation) of cisplatin loaded into ACINPs are optimized as 29...
November 25, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27891398/an-unusual-evolution-of-krukenberg-tumour-a-case-report
#15
Claudio Spinelli, Concetta Liloia, Jessica Piscioneri, Clara Ugolini, Silvia Strambi
Krukenberg tumours are rare metastatic tumours of the ovaries characterized by the presence of mucin-producing neoplastic Signet Ring Cell Carcinoma (SRCC). At first glance, this tumour may be confused with a primary ovarian tumour. Surgery and chemotherapy combination have led to improvement in prognosis, but it still remains severe. We report the case of a 60-year-old woman with a Krukenberg tumour rising from a low differentiated gastric adenocarcinoma. The patient was clinically stable for 26 months after surgery until she experienced a prompt decline and died of cerebral haemorrhage within two weeks...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27886029/prevalence-of-h-pylori-in-gastric-biopsy-specimen-in-the-southeastern-region-of-turkey
#16
Fulya Bayındır Bilman, Mehmet Özdemir, Birol Baysal, Muhammed Güzel Kurtoğlu
INTRODUCTION: Helicobacter pylori is a Gram-negative, microaerophilic bacterium that colonizes human gastric mucosa. Gastric ulcer, duodenal ulcer, chronic atrophic gastritis, mucosa-associated lymphoid tissue lymphoma, and stomach adenocarcinoma are associated with H. pylori as the etiological agent. Cytotoxin-associated gene A (cagA), which is one of the most important virulence factors of H. pylori, encodes a 120-145 kDa protein. The prevalence of cagA genes shows differences in H...
November 24, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/27882290/mast-cell-interaction-with-neutrophils-in-human-gastric-carcinomas-ultrastructural-observations
#17
Antonio Ieni, Valeria Barresi, Giovanni Branca, Rosario Alberto Caruso, Giovanni Tuccari
Aim. The role of mast cells in cell-cell immune interactions has received increasing attention, although their functional interaction with neutrophils still remains to be clarified in tumors. The aim of the present study was to investigate the association between mast cells and neutrophils in a series of gastric carcinomas (GC). Patients and Methods. 52 surgically resected GC specimens were routinely processed for both light and electron microscopy. Only cases showing both mast cells and neutrophils in the tumor stroma were considered in the analysis...
2016: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/27882220/effects-of-blueberries-on-migration-invasion-proliferation-the-cell-cycle-and-apoptosis-in-hepatocellular-carcinoma-cells
#18
Wei Zhan, Xin Liao, Lei Yu, Tian Tian, Xing Liu, Jing Liu, Li-Jun Cai, Xuan Xiao, Ru-Jia Xie, Qin Yang
The aim of the present study was to investigate the effects of blueberry consumption on the migration, invasion, proliferation, cell cycle and apoptosis in human hepatocellular carcinoma (HCC) cells, in order to provide clinical treatment and prevention strategies for liver cancer using anticancer therapeutic agents. Rabbiteye blueberry was prepared as fresh juice and fed to rats at low, moderate and high dosages (25, 50 and 100%, respectively) by daily gastric gavage. Seven days later, the rats were sacrificed and the blood serum was obtained for co-culture with HEPG2 cells...
November 2016: Biomedical Reports
https://www.readbyqxmd.com/read/27882131/role-of-peptidylarginine-deiminase-type-4-in-gastric-cancer
#19
Jiang Xin, Xiuqi Song
Peptidylarginine deiminase type 4 (PADI4) post-translationally converts peptidylarginine to citrulline, appearing to be overexpressed in numerous carcinomas. The current study aimed to investigate the expression of PADI4 in gastric cancer tissues and its effect on the biological activities of SGC-7901 and AGS tumor cell lines. The expression of PADI4 was determined in gastric cancer and normal gastric mucosa tissues using western blot analysis and reverse transcription-quantitative polymerase chain reaction...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881023/impaired-gallbladder-function-in-patients-after-total-gastrectomy
#20
Tuula Tyrväinen, Isto Nordback, Jyri Toikka, Anneli Piiroinen, Karl-Heinz Herzig, Kari Mäkelä, Juhani Sand
BACKGROUND AND AIMS: The incidence of gallstones and gallbladder sludge is higher in patients after total gastrectomy than in general population. Formation of gallstones after gastrectomy is multifactorial. Here, we investigate the changes in gallbladder and biliary tract functions by cholescintygraphy and monitored changes in cholecystokinin (CCK) release in long-term survivors after total gastrectomy for gastric carcinoma. MATERIAL AND METHODS: Patients had undergone total gastrectomy for gastric carcinoma at least five years ago...
November 24, 2016: Scandinavian Journal of Gastroenterology
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