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Pancreatitis AND microRNA

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https://www.readbyqxmd.com/read/27895308/epigenetic-inhibition-of-mir-663b-by-long-non-coding-rna-hotair-promotes-pancreatic-cancer-cell-proliferation-via-up-regulation-of-insulin-like-growth-factor-2
#1
Huihua Cai, Yong An, Xuemin Chen, Donglin Sun, Tongbing Chen, Yan Peng, Feng Zhu, Yong Jiang, Xiaozhou He
Pancreatic cancer is one of the most deadly cancers with a poor prognosis. Although microRNAs are involving in the carcinogenesis and development of pancreatic cancer, little information is known regarding the role of miR-663b in pancreatic cancer. In this study, the expression of miR-663b in pancreatic cancer cells was down-regulated by hypermethylation in its putative promoter region, and overexpression of miR-663b repressed cell proliferation, invasion and migration, and induced apoptosis in pancreatic cancer cells...
November 22, 2016: Oncotarget
https://www.readbyqxmd.com/read/27894092/a-novel-fully-human-anti-ncl-immunornase-for-triple-negative-breast-cancer-therapy
#2
Chiara D'Avino, Dario Palmieri, Ashley Braddom, Nicola Zanesi, Cindy James, Sara Cole, Francesco Salvatore, Carlo M Croce, Claudia De Lorenzo
Breast cancer is the most common cancer in women worldwide. A new promising anti-cancer therapy involves the use of monoclonal antibodies specific for target tumor-associated antigens (TAAs). A TAA of interest for immunotherapy of Triple Negative Breast Cancer (TNBC) is nucleolin (NCL), a multifunctional protein, selectively expressed on the surface of cancer cells, which regulates the biogenesis of specific microRNAs (miRNAs) involved in tumor development and drug-resistance. We previously isolated a novel human anti-NCL scFv, called 4LB5, that is endowed with selective anti-tumor effects...
November 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27889393/triple-amirna-vegfrs-inhibition-in-pancreatic-cancer-improves-the-efficacy-of-chemotherapy-through-emt-regulation
#3
Jianfei Huang, Haijun Mei, Zhiyuan Tang, Jieying Li, Xiaojing Zhang, Yixiang Lu, Fang Huang, Qin Jin, Zhiwei Wang
Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease with dismal outcome. Both novel prognostic markers and therapeutic targets are needed to improve the overall outcome of patients. Although single or double VEGFRs have been studied in PDAC, little is known about the role of triple combination of VEGFRs (VEGFR1, 2, and 3) in prognosis and therapy. We determined VEGFRs protein expression in 241 pancreatic tissues by tissue microarray immunohistochemistry (TMA-IHC), and correlated with patients' clinical characteristics and overall survival...
November 23, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27869909/altered-levels-of-circulating-cytokines-and-micrornas-in-lean-and-obese-individuals-with-prediabetes-and-type-2-diabetes
#4
Yury O Nunez Lopez, Gabriella Garufi, Attila A Seyhan
Today obesity and type 2 diabetes (T2D) have both reached epidemic proportions. However, our current understanding of the primary mechanisms leading to these diseases is still limited due to the complex multifactorial nature of the underlying phenomena. We hypothesize that the levels of specific cytokines and miRNAs vary across the diabetes spectrum and unique signatures associated with them may serve as early biomarkers of the disease and provide insights into respective pathogenetic mechanisms. In this study, we measured the circulating levels of cytokines and microRNAs (miRNAs) in lean and obese humans with prediabetes (n = 21), T2D (n = 17), and healthy controls (n = 20) (ORIGINS trial, NCT02226640)...
November 21, 2016: Molecular BioSystems
https://www.readbyqxmd.com/read/27866884/microrna-biomarkers-of-pancreatic-injury-in-a-canine-model
#5
Rodney Rouse, Barry Rosenzweig, Katie Shea, Alan Knapton, Sharron Stewart, Lin Xu, Ashok Chockalingam, Leah Zadrozny, Karol Thompson
Pancreas-enriched microRNAs have been experimentally investigated in rodents as candidate serum biomarkers of pancreatic injury with several different acute pancreatic injury models. In the present study, temporal and magnitude responses of exocrine pancreas-enriched miR-216a, miR-216b, and miR-217 and endocrine-enriched miR-375 and miR-148a were measured by droplet digital PCR in serum in a caerulein model of pancreatic injury in the dog. All 5 microRNAs followed a similar time course that mirrored the responses of the conventional serum pancreatic injury biomarkers, amylase and lipase...
November 17, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27862697/zfp36l2-promotes-cancer-cell-aggressiveness-and-is-regulated-by-antitumor-microrna-375-in-pancreatic-ductal-adenocarcinoma
#6
Keiichi Yonemori, Naohiko Seki, Hiroshi Kurahara, Yusaku Osako, Tetsuya Idichi, Takayuki Arai, Keiichi Koshizuka, Yoshiaki Kita, Kosei Maemura, Shoji Natsugoe
Due to its aggressive nature, pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal and hard-to-treat malignancies. Recently developed targeted molecular strategies have contributed to remarkable improvements in the treatment of several cancers. However, such therapies have not been applied to PDAC. Therefore, new treatment options are needed for PDAC based on current genomic approaches. Expression of microRNA-375 (miR-375) was significantly reduced in miRNA expression signatures of several types of cancers, including PDAC...
November 14, 2016: Cancer Science
https://www.readbyqxmd.com/read/27855392/the-emerging-roles-of-long-noncoding-rna-ror-lincrna-ror-and-its-possible-mechanisms-in-human-cancers
#7
Yan Pan, Chen Li, Jing Chen, Kai Zhang, Xiaoyuan Chu, Rui Wang, Longbang Chen
To date, there is only up to 2% of protein-coding genes that are stably transcribed, whereas the vast majority are non-coding RNAs (ncRNAs). These ncRNAs, also known as non-messenger RNAs (nmRNAs) or functional RNAs (fRNAs), include transfer RNAs, ribosomal RNAs, microRNAs and long non-coding RNAs (lncRNAs). With the advance of high-resolution microarrays and massively parallel sequencing technology, lncRNAs have gained extended attentions nowadays and are found to play important roles in tumorigenesis and progression of human cancers...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27831640/influence-and-significance-of-intervening-diabetes-microrna-expression-profile-of-nod-mice-with-exendin-4
#8
J-S He, C-W Lian, Y-L Fang, J-Z Wu, X-L Ye, S-B Zhu
OBJECTIVE: To provide selectable microRNA for intervening diabetes mellitus diseases, NOD mice's expression of microRNA in pancreas tissues and blood under the exendin-4 intervention of was observed and the difference of microRNA target gene was screened. MATERIALS AND METHODS: Forty clean NOD mice were randomly divided into four groups (in each group, n = 10): One is blank control group D which is intervened with normal saline, and the other three groups were divided into low-dose group A, middle-dose group B, and high-dose group C according to the different exendin-4 dosage 2, 4, and 8 μg/kg·d...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27829997/propofol-inhibits-growth-and-invasion-of-pancreatic-cancer-cells-through-regulation-of-the-mir-21-slug-signaling-pathway
#9
Zimin Liu, Jian Zhang, Guangchen Hong, Jinping Quan, Lin Zhang, Meiqin Yu
AIM: Propofol, an intravenous anesthetic agent, has been found to inhibit invasion and growth of pancreatic cancer cells in vitro. However, the mechanisms underlying these tumor-promoting phenotypes are not known. The microRNA miR-21 has been reported to be overexpressed in pancreatic cancer, and overexpression of miR-21 confers a poor prognosis to patients with pancreatic cancer. Further studies have identified the E-cadherin transcription repressor Slug as a direct target of miR-21...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27829043/microrna-93-promotes-epithelial-mesenchymal-transition-of-endometrial-carcinoma-cells
#10
Shuo Chen, Xi Chen, Kai-Xuan Sun, Yin-Ling Xiu, Bo-Liang Liu, Miao-Xiao Feng, Xiu-Bo Sang, Yang Zhao
MicroRNA-93, derived from a paralog (miR-106b-25) of the miR-17-92 cluster, is involved in the tumorigenesis and progression of many cancers such as breast, colorectal, hepatocellular, lung, ovarian, and pancreatic cancer. However, the role of miR-93 in endometrial carcinoma and the potential molecular mechanisms involved remain unknown. Our results showed that miR-93 was overexpressed in endometrial carcinoma tissues than normal endometrial tissues. The endometrial carcinoma cell lines HEC-1B and Ishikawa were transfected with miR-93-5P, after which cell migration and invasion ability and the expression of relevant molecules were detected...
2016: PloS One
https://www.readbyqxmd.com/read/27819637/patients-after-splenectomy-old-risks-and-new-perspectives
#11
Mihnea Dragomir, Dragoş George Emil Petrescu, Graţiela Elena Manga, George A Călin, Cătălin Vasilescu
The risks that arise after splenectomy can be divided in infectious and non-infectious. The link between splenectomy and these hazards remains partially unknown. Host defense against infection is altered after splenectomy and such individuals develop sepsis more easily and the infection has a fulminant course. Splenectomy is also a potential risk factor for several vascular complications that result from partial or total obstruction of an arterial or venous blood vessel. Furthermore, pulmonary hypertensioncan be a severe and sometimes fatal complication following splenectomy...
2016: Chirurgia
https://www.readbyqxmd.com/read/27815534/biological-roles-of-micrornas-in-the-control-of-insulin-secretion-and-action
#12
Sophie Calderari, Malika Diawara, Alois Garaud, Dominique Gauguier
MicroRNAs (miRNAs) are intracellular and circulating molecular components contributing to genome expression control through binding mRNA targets, which generally results in downregulated mRNA expression. One miRNA can target several mRNAs and one transcript can be targeted by several miRNAs, resulting in complex fine tuning of regulation of gene networks and signaling pathways. miRNAs regulate metabolism, adipocyte differentiation, pancreatic development, β-cell mass, insulin biosynthesis, secretion and signaling and their role in diabetes and obesity is emerging...
November 4, 2016: Physiological Genomics
https://www.readbyqxmd.com/read/27797718/microrna-182-promotes-pancreatic-cancer-cell-proliferation-and-migration-by-targeting-%C3%AE-trcp2
#13
Shi Wang, Jiansong Ji, Jingjing Song, Xue Li, Shilong Han, Weishuai Lian, Chuanwu Cao, Xiaoping Zhang, Maoquan Li
Pancreatic cancer is an aggressive malignancy. The median survival rate remains low, indicating that the identification of novel biomarkers and therapeutic targets is critical. Here, we examined the role of microRNA-182 (miR-182) in pancreatic cancer development. Analysis of human pancreatic cancer specimens and cell lines showed that miR-182 is overexpressed in pancreatic cancer and promotes tumor proliferation and invasion. β-TrCP2 was confirmed as a direct target of miR-182. Silencing of β-TrCP2 increased the levels of β-catenin, which is similar to miR-182 overexpression...
December 2016: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/27795830/advance-in-microrna-as-a-potential-biomarker-for-early-detection-of-pancreatic-cancer
#14
REVIEW
Jing Huang, Jianzhou Liu, Kevin Chen-Xiao, Xuemei Zhang, W N Paul Lee, Vay Liang W Go, Gary Guishan Xiao
Pancreatic cancer is characterized as a disease with low survival and high mortality because of no effective diagnostic and therapeutic strategies available in clinic. Conventional clinical diagnostic methods including serum markers and radiological imaging (CT, MRI, EUS, etc.) often fail to detect precancerous or early stage lesions. Development of effective biomarkers is unmet for reduction of mortality of pancreatic cancer. MicroRNAs (miRNAs) are a group of small non-protein-coding RNAs playing roles in regulation of cell physiology including tumorigenesis, apoptotic escape, proliferation, invasion, epithelial-mesenchymal transition (EMT), metastasis and chemoresistance...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27776045/microrna-148a-suppresses-the-proliferation-and-migration-of-pancreatic-cancer-cells-by-down-regulating-erbb3
#15
Hui Feng, Yalei Wang, Jiaojiao Su, Hongwei Liang, Chen-Yu Zhang, Xi Chen, Weiyan Yao
OBJECTIVES: ErbB3 (HER3) has been associated with pancreatic cancer progression, but little is known about its regulatory mechanisms. We investigated whether microRNAs (miRNAs) regulate levels of ErbB3 in pancreatic cancer cells. METHODS: We used bioinformatic analyses to search for miRNAs that can potentially target ERBB3. Furthermore, the biological consequences of the targeting of ERBB3 by miR-148a were examined by cell proliferation and migration assays in vitro...
October 2016: Pancreas
https://www.readbyqxmd.com/read/27763497/regulatory-roles-of-micrornas-in-diabetes
#16
Juan Feng, Wanli Xing, Lan Xie
MicroRNAs (miRNAs), a class of endogenous small noncoding RNAs in eukaryotes, have been recognized as significant regulators of gene expression through post-transcriptional mechanisms. To date, >2000 miRNAs have been identified in the human genome, and they orchestrate a variety of biological and pathological processes. Disruption of miRNA levels correlates with many diseases, including diabetes mellitus, a complex multifactorial metabolic disorder affecting >400 million people worldwide. miRNAs are involved in the pathogenesis of diabetes mellitus by affecting pancreatic β-cell functions, insulin resistance, or both...
October 17, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27754789/maternal-low-protein-isocaloric-diet-suppresses-pancreatic-%C3%AE-cell-proliferation-in-mouse-offspring-via-mir-15b
#17
Yutong Su, Xiuli Jiang, Yanli Li, Feng Li, Yulong Cheng, Ying Peng, Dalong Song, Jie Hong, Guang Ning, Yanan Cao, Weiqing Wang
The mechanism underlying the increased susceptibility of type 2 diabetes in offspring of maternal malnutrition is poorly determined. Here we tested the hypothesis that functional microRNAs (miRNAs) mediated the maternal low-protein (LP) isocaloric diet induced pancreatic β-cell impairment. We performed miRNA profiling in the islets from offspring of LP and control diet mothers to explore the potential functional miRNAs responsible for β-cell dysfunction. We found that LP offspring exhibited impaired glucose tolerance due to decreased β-cell mass and insulin secretion...
December 2016: Endocrinology
https://www.readbyqxmd.com/read/27743454/the-role-of-micrornas-in-islet-%C3%AE-cell-development
#18
REVIEW
Maryam Kaviani, Negar Azarpira, Mohammad Hossein Karimi, Ismail Al-Abdullah
Cell-based therapies suggest novel treatments to overcome the complication of the current therapeutic approaches in diabetes mellitus type 1. Replacement of the destroyed pancreatic islet β-cells by appropriate alternative cells needs an efficient approach to differentiate the cells into viable and functional insulin producing cells. Small non-coding RNA molecules, microRNAs (miRNA), have critical roles in post-transcriptional regulation of gene expression. Therefore, they can direct the cells toward β-cell like cells and control islet β-cell development...
October 15, 2016: Cell Biology International
https://www.readbyqxmd.com/read/27739311/-prognostic-and-predictive-factors-for-pancreatic-adenocarcinoma
#19
P Karásek, M Hermanová
BACKGROUND: Pancreatic ductal adenocarcinoma is a highly aggressive disease with 5-year overall survival not exceeding 5%. In the Czech Republic, the incidence of this tumor has been increasing; according to recent statistics, the Czech Republic is already number one worldwide in the occurrence of this malignancy. Delayed diagnosis due to asymptomatic course of the disease in the early stages is characteristic for this disease. AIM: The objective of this article is to give an overview of the most important factors, which according to current knowledge of pancreatic adenocarcinoma have a prognostic and predictive potential...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/27737950/micrornas-mir-23a-3p-mir-23b-3p-and-mir-149-5p-regulate-the-expression-of-pro-apoptotic-bh3-only-proteins-dp5-and-puma-in-human-pancreatic-beta-cells
#20
Fabio Arturo Grieco, Guido Sebastiani, Jonas Juan-Mateu, Olatz Villate, Laura Marroqui, Laurence Ladrière, Ksenya Tugay, Romano Regazzi, Marco Bugliani, Piero Marchetti, Francesco Dotta, Décio L Eizirik
Type 1 Diabetes is an autoimmune disease leading to beta cell destruction. MicroRNAs (miRNAs) are small non-coding RNAs that control gene expression and organ formation. They participate in the pathogenesis of several autoimmune diseases, but the nature of miRNAs contributing to beta cell death in T1D and their target genes remain to be clarified.We performed a miRNA expression profile on human islet preparations exposed to the cytokines IL-1β+IFN-γ. Confirmation of miRNAs and target genes modification in human beta cells was performed by real-time qPCR...
October 13, 2016: Diabetes
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