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https://www.readbyqxmd.com/read/28423671/genome-wide-dna-methylation-analysis-reveals-molecular-subtypes-of-pancreatic-cancer
#1
Nitish Kumar Mishra, Chittibabu Guda
Pancreatic cancer (PC) is the fourth leading cause of cancer deaths in the United States with a five-year patient survival rate of only 6%. Early detection and treatment of this disease is hampered due to lack of reliable diagnostic and prognostic markers. Recent studies have shown that dynamic changes in the global DNA methylation and gene expression patterns play key roles in the PC development; hence, provide valuable insights for better understanding the initiation and progression of PC. In the current study, we used DNA methylation, gene expression, copy number, mutational and clinical data from pancreatic patients...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423602/promoter-hypermethylation-of-lgals4-correlates-with-poor-prognosis-in-patients-with-urothelial-carcinoma
#2
Meei-Maan Wu, Ching-Fei Li, Li-Fang Lin, Alexander Sheng-Shin Wang, Yeong-Shiau Pu, Hsiu-Hua Wang, Ai-Chung Mar, Chien-Jen Chen, Te-Chang Lee
Galectine-4 (gal-4), encoded by the LGALS4 gene, was recently shown to exhibit a tumor suppressive effect in colorectal carcinoma and pancreatic adenocarcinoma, although how the expression of this gene is regulated remains unknown. No reports describe the significance of gal-4 in the malignant potential of urothelial tumors. Thus, we analyzed LGALS4 methylation and gene expression and their clinical relevance and biological function in urothelial carcinoma (UC). LGALS4 methylation was initially identified as a progression biomarker for UC patients through genome-wide DNA methylation profiling of 16 tumor samples...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28419614/prospective-comparison-of-biphasic-contrast-enhanced-ct-volume-perfusion-ct-and-3-tesla-mri-with-diffusion-weighted-imaging-for-insulinoma-detection
#3
Liang Zhu, Huadan Xue, Zhaoyong Sun, Ping Li, Tianyi Qian, Xiaoping Xing, Naishi Li, Yupei Zhao, Wenming Wu, Zhengyu Jin
PURPOSE: To evaluate the diagnostic performance of biphasic contrast-enhanced CT (CECT), volume perfusion CT (VPCT) and 3 Tesla MRI with diffusion-weighted imaging (DWI), in patients with clinically suspected insulinomas. MATERIALS AND METHODS: This prospective study was approved by the institutional review board. Sixty-four patients with clinically suspected insulinomas underwent biphasic CECT, VPCT, and 3T MR with DWI. Two radiologists independently determined the presence/absence of tumor using a 5-scale confidence level...
April 17, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28380011/increased-inflammation-is-associated-with-islet-autoimmunity-and-type-1-diabetes-in-the-diabetes-autoimmunity-study-in-the-young-daisy
#4
Kathleen Waugh, Janet Snell-Bergeon, Aaron Michels, Fran Dong, Andrea K Steck, Brigitte I Frohnert, Jill M Norris, Marian Rewers
BACKGROUND: Type 1 diabetes (TID) is characterized by a loss of pancreatic islet beta cell function resulting in loss of insulin production. Genetic and environmental factors may trigger immune responses targeting beta cells thus generating islet antibodies (IA). Immune response pathways involve a cascade of events, initiated by cytokines and chemokines, producing inflammation which can result in tissue damage. METHODS: A nested case-control study was performed to identify temporal changes in cytokine levels in 75 DAISY subjects: 25 diagnosed T1D, 25 persistent IA, and 25 controls...
2017: PloS One
https://www.readbyqxmd.com/read/28377226/aquaporin-3-facilitates-tumor-growth-in-pancreatic-cancer-by-modulating-mtor-signaling
#5
Xunwei Huang, Li Huang, Minhua Shao
Aquaporins (AQP) have been demonstrated to be dysregulated in many human cancers and is thought to be involved in pancreatic carcinogenesis and progression. However, the oncogenic roles and underlying mechanism of AQP in pancreatic ductal adenocarcinoma (PDAC) remain largely unknown. In this study, by data mining of TCGA dataset and CCLE database, we identified that AQP3 is the major AQP expressed in PDAC. Then, the microRNA-874, was demonstrated to be a key regulator of AQP3 expression in PDAC cells. Genetic silencing of AQP3 expression had pronounced effects on cell proliferation and apoptosis of the PDAC cell lines BXPC3 and HPAFII...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28373469/nab-paclitaxel-and-gemcitabine-in-advanced-pancreatic-cancer-the-one-year-experience-of-the-national-cancer-institute-of-naples
#6
Alessandro Ottaiano, Monica Capozzi, Chiara DE Divitiis, Claudia VON Arx, Elena DI Girolamo, Guglielmo Nasti, Ernesta Cavalcanti, Fabiana Tatangelo, Giovanni Romano, Antonio Avallone, Salvatore Tafuto
BACKGROUND: Pancreas adenocarcinoma is the sixth cause of cancer-related death worldwide with an increasing mortality in the Western countries. Recently, the association between nab-paclitaxel (nab-P) and gemcitabine (GEM) has significantly improved progression-free and overall survival. PATIENTS AND METHODS: Patients affected by metastatic pancreas adenocarcinoma were treated at the Department of Abdominal Oncology of the National Cancer Institute of Naples from July 2015 to July 2016 with nab-P at 125 mg per square meter of body-surface area followed by GEM at 1,000 mg per square meter on days 1, 8 and 15 every 4 weeks...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28373404/precancer-atlas-to-drive-precision-prevention-trials
#7
Avrum Spira, Matthew B Yurgelun, Ludmil Alexandrov, Anjana Rao, Rafael Bejar, Kornelia Polyak, Marios Giannakis, Ali Shilatifard, Olivera J Finn, Madhav Dhodapkar, Neil E Kay, Esteban Braggio, Eduardo Vilar, Sarah A Mazzilli, Timothy R Rebbeck, Judy E Garber, Victor E Velculescu, Mary L Disis, Douglas C Wallace, Scott M Lippman
Cancer development is a complex process driven by inherited and acquired molecular and cellular alterations. Prevention is the holy grail of cancer elimination, but making this a reality will take a fundamental rethinking and deep understanding of premalignant biology. In this Perspective, we propose a national concerted effort to create a Precancer Atlas (PCA), integrating multi-omics and immunity - basic tenets of the neoplastic process. The biology of neoplasia caused by germline mutations has led to paradigm-changing precision prevention efforts, including: tumor testing for mismatch repair (MMR) deficiency in Lynch syndrome establishing a new paradigm, combinatorial chemoprevention efficacy in familial adenomatous polyposis (FAP), signal of benefit from imaging-based early detection research in high-germline risk for pancreatic neoplasia, elucidating early ontogeny in BRCA1-mutation carriers leading to an international breast cancer prevention trial, and insights into the intricate germline-somatic-immunity interaction landscape...
April 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28373362/pancreatic-cancer-genomes-implications-for-clinical-management-and-therapeutic-development
#8
EDITORIAL
Stephan B Dreyer, David K Chang, Peter Bailey, Andrew V Biankin
Pancreatic cancer has become the third leading cause of cancer-related death, with little improvement in outcomes despite decades of research. Surgery remains the only chance of cure, yet only 20% of patients will be alive at 5 years after pancreatic resection. Few chemotherapeutics provide any improvement in outcome, and even then, for approved therapies, the survival benefits are marginal. Genomic sequencing studies of pancreatic cancer have revealed a small set of consistent mutations found in most pancreatic cancers and beyond that, a low prevalence for targetable mutations...
April 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28368947/female-reproductive-factors-exogenous-hormone-use-and-pancreatic-cancer-risk-the-japan-public-health-center-based-prospective-study
#9
Yvonne Teng, Eiko Saito, Sarah K Abe, Norie Sawada, Motoki Iwasaki, Taiki Yamaji, Taichi Shimazu, Shizuka Sasazuki, Manami Inoue, Shoichiro Tsugane
An association between female reproductive factors, exogenous hormone use, and pancreatic cancer risk has long been suggested in laboratory settings, but epidemiological findings remain mixed and inconclusive. Studies carried out on Asian populations are also limited. In this study, 45 617 women aged 40-69 years were followed for an average of 18.4 years in the Japan Public Health Center-based prospective cohort and 211 pancreatic cases were identified as of 31 December 2011. We applied multivariate-adjusted Cox proportional hazards regression models using age as a time-scale to assess the association between female reproductive factors (menstrual status, menarche age, menopause age, number of births, age at first birth, total years of fertility, history of breastfeeding) and exogenous hormone use with the incidence of pancreatic cancer through hazard ratios and confidence intervals...
March 31, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28366671/duodenal-long-noncoding-rnas-are-associated-with-glycemic-control-after-bariatric-surgery-in-high-fat-diet-induced-diabetic-mice
#10
Yongjun Liang, Bo Yu, Yueqian Wang, Zhengdong Qiao, Ting Cao, Peng Zhang
BACKGROUND: The duodenum plays a role in the mechanism of type 2 diabetes remission after bariatric surgery. Roux-en-Y gastric bypass (RYGB) may change gene expression in the duodenum and metabolism. Long noncoding RNAs (lncRNAs) constitute a novel class of RNAs that regulate gene expression. Little is known about how duodenal lncRNAs respond to RYGB. Logically, studies on the changes of duodenal lncRNAs potentially can lead to an understanding of the mechanisms of bariatric surgery, as well as discovery of antidiabetic drug targets and biomarkers predicting postoperative outcome...
February 20, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28366542/key-biological-processes-driving-metastatic-spread-of-pancreatic-cancer-as-identified-by-multi-omics-studies
#11
REVIEW
T Y S Le Large, M F Bijlsma, G Kazemier, H M W van Laarhoven, E Giovannetti, C R Jimenez
Pancreatic ductal adenocarcinoma (PDAC) is an extremely aggressive malignancy, characterized by a high metastatic burden, already at the time of diagnosis. The metastatic potential of PDAC is one of the main reasons for the poor outcome next to lack of significant improvement in effective treatments in the last decade. Key mutated driver genes, such as activating KRAS mutations, are concordantly expressed in primary and metastatic tumors. However, the biology behind the metastatic potential of PDAC is not fully understood...
March 30, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28356007/fluorescent-immortalized-human-adipose-derived-stromal-cells-hascs-ts-gfp-for-studying-cell-drug-delivery-mediated-by-microvesicles
#12
Valentina Coccè, Luigi Balducci, Maria Laura Falchetti, Luisa Pascucci, Emilio Ciusani, Anna Teresa Brini, Francesca Sisto, Giovanna Piovani, Giulio Alessandri, Eugenio Parati, Laura Cabeza, Augusto Pessina
BACKGROUND: A new tool for the drug delivery is based on the use of Mesenchymal Stromal Cells (MSCs) loaded in vitro with anti-cancer drugs. Unfortunately, the restricted lifespan of MSCs represents a significant limitation to produce them in high amounts and for long time studies. Immortalized MSCs from adipose tissue (hASC) have been generated as good source of cells with stable features. These cells could improve the development of standardized procedures for both in vitro and preclinical studies...
March 27, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28332299/the-use-of-on-line-sfe-sfc-ms-ms-to-analyze-disease-biomarkers-in-dried-serum-spots-compared-with-serum-analysis-using-lc-ms-ms
#13
Makoto Suzuki, Shin Nishiumi, Takashi Kobayashi, Arata Sakai, Yosuke Iwata, Takato Uchikata, Yoshihiro Izumi, Takeshi Azuma, Takeshi Bamba, Masaru Yoshida
RATIONALE: The analytical stability and throughput of biomarker assays based on dried serum spots (DSS) are strongly dependent on the extraction process and determination method. In the present study, an on-line system based on supercritical fluid extraction-supercritical fluid chromatography coupled with tandem mass spectrometry (SFE-SFC/MS/MS) was established for analyzing the levels of disease biomarkers in DSS. METHODS: The chromatographic conditions were investigated using the ODS-EP, diol, and SIL-100A columns...
March 23, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28274206/the-h-o-u-s-e-classification-a-novel-endoscopic-retrograde-cholangiopancreatography-ercp-complexity-grading-scale
#14
Greger Olsson, Urban Arnelo, Fredrik Swahn, Björn Törnqvist, Lars Lundell, Lars Enochsson
BACKGROUND: Endoscopic retrograde cholangiopancreatography (ERCP) is a technically challenging endoscopic procedure, harboring a wide range of complexities within every single investigation. Classifications of the complexity of ERCP have been presented, but do not include modern endoscopic treatment modalities. In order to be able to target resources and compare the results of different endoscopic centers, a new complexity grading system for ERCP is warranted. This study launches a new complexity grading scale for ERCP-the H...
March 9, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28273237/effects-of-diazoxide-in-experimental-acute-necrotizing-pancreatitis
#15
Roberta de Oliveira Andrade, Tiago Kunitake, Marcia Kiyomi Koike, Marcel C C Machado, Heraldo Possolo Souza
OBJECTIVE: We aimed to assess the effects of diazoxide on the mortality, pancreatic injury, and inflammatory response in an experimental model of acute pancreatitis. METHODS: Male Wistar rats (200-400 g) were divided randomly into two groups. Fifteen minutes before surgery, animals received physiological (0.9%) saline (3 mL/kg) (control group) or 45 mg/kg diazoxide (treatment group) via the intravenous route. Acute pancreatitis was induced by injection of 2.5% sodium taurocholate via the biliopancreatic duct...
February 1, 2017: Clinics
https://www.readbyqxmd.com/read/28271277/sequence-specific-backbone-resonance-assignments-and-microsecond-timescale-molecular-dynamics-simulation-of-human-eosinophil-derived-neurotoxin
#16
Donald Gagné, Chitra Narayanan, Khushboo Bafna, Laurie-Anne Charest, Pratul K Agarwal, Nicolas Doucet
Eight active canonical members of the pancreatic-like ribonuclease A (RNase A) superfamily have been identified in human. All structural homologs share similar RNA-degrading functions, while also cumulating other various biological activities in different tissues. The functional homologs eosinophil-derived neurotoxin (EDN, or RNase 2) and eosinophil cationic protein (ECP, or RNase 3) are known to be expressed and secreted by eosinophils in response to infection, and have thus been postulated to play an important role in host defense and inflammatory response...
March 7, 2017: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/28266591/early-aggressive-hydration-hastens-clinical-improvement-in-mild-acute-pancreatitis
#17
James L Buxbaum, Michael Quezada, Ben Da, Niraj Jani, Christianne Lane, Didi Mwengela, Thomas Kelley, Paul Jhun, Kiran Dhanireddy, Loren Laine
OBJECTIVES: Early aggressive intravenous hydration is recommended for acute pancreatitis treatment although randomized trials have not documented benefit. We performed a randomized trial of aggressive vs. standard hydration in the initial management of mild acute pancreatitis. METHODS: Sixty patients with acute pancreatitis without systemic inflammatory response syndrome (SIRS) or organ failure were randomized within 4 h of diagnosis to aggressive (20 ml/kg bolus followed by 3 ml/kg/h) vs...
March 7, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28264873/genetically-predicted-telomere-length-is-not-associated-with-pancreatic-cancer-risk
#18
Samuel O Antwi, William R Bamlet, Brendan T Broderick, Kari G Chaffee, Ann L Oberg, Aminah Jatoi, Lisa A Boardman, Gloria M Petersen
BACKGROUND: Epidemiologic associations of leukocyte telomere length (LTL) and pancreatic ductal adenocarcinoma (PDAC) have been inconsistent owing, in part, to variation in telomere length (TL) assessment across studies. To overcome this limitation and address concerns of potential reverse causation, we used carriage of telomere-related alleles to genetically predict TL and examined its association with PDAC. METHODS: A case-control study of 1,500 PDAC cases and 1,500 controls, frequency-matched on age and sex was performed...
March 6, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28246088/adiposity-and-cancer-at-major-anatomical-sites-umbrella-review-of-the-literature
#19
REVIEW
Maria Kyrgiou, Ilkka Kalliala, Georgios Markozannes, Marc J Gunter, Evangelos Paraskevaidis, Hani Gabra, Pierre Martin-Hirsch, Konstantinos K Tsilidis
Objective To evaluate the strength and validity of the evidence for the association between adiposity and risk of developing or dying from cancer.Design Umbrella review of systematic reviews and meta-analyses.Data sources PubMed, Embase, Cochrane Database of Systematic Reviews, and manual screening of retrieved references.Eligibility criteria Systematic reviews or meta-analyses of observational studies that evaluated the association between indices of adiposity and risk of developing or dying from cancer...
February 28, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28240774/early-detection-of-pancreatic-cancer-where-are-we-now-and-where-are-we-going
#20
REVIEW
Bin Zhou, Jian-Wei Xu, Yu-Gang Cheng, Jing-Yue Gao, San-Yuan Hu, Lei Wang, Han-Xiang Zhan
Pancreatic cancer (PC) is one of the most lethal malignancies. Recent studies indicate that patients with incidentally diagnosed PC have better prognosis than those with symptoms and that there is a sufficient window for early detection. However, effective early diagnosis remains difficult and depends mainly on imaging modalities and the development of screening methodologies with highly sensitive and specific biomarkers. This review summarizes recent advances in effective screening for early diagnosis of PC using imaging modalities and novel molecular biomarkers discovered from various "omics" studies including genomics, epigenomics, non-coding RNA, metabonomics, liquid biopsy (CTC, ctDNA and exosomes) and microbiomes, and their use in body fluids (feces, urine, and saliva)...
February 27, 2017: International Journal of Cancer. Journal International du Cancer
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