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https://www.readbyqxmd.com/read/28077249/altered-mucosal-expression-of-micrornas-in-pediatric-patients-with-inflammatory-bowel-disease
#1
Nóra Judit Béres, Zoltán Kiss, Zsófia Sztupinszki, Gábor Lendvai, András Arató, Erna Sziksz, Ádám Vannay, Attila J Szabó, Katalin Eszter Müller, Áron Cseh, Kriszta Boros, Gábor Veres
INTRODUCTION: MicroRNAs (miRs) came recently into focus as promising novel research targets offering new insights into the pathogenesis of inflammatory bowel diseases (IBD). AIMS: The aim of our study was to identify a pediatric IBD (pIBD) characteristic miR profile serving as potential Crohn's disease (CD) and ulcerative colitis (UC) specific diagnostic pattern and to further analyze the related target genes. METHODS: Small RNA sequencing was performed on inflamed and intact colonic biopsies of CD, and control patients...
December 27, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28042945/minicircle-orip-mir-31-as-a-novel-ebna1-specific-mirna-therapy-approach-for-nasopharyngeal-carcinoma
#2
Jiang-Xue Wu, Xin Tan, Jiaxin Lin, Luping Yuan, Jiemin Chen, Lin Qiu, Wen-Lin Huang
MicroRNAs (miRNAs) are important post-transcriptional regulators that control cancer development and progression. However, the application of miRNA therapy in cancer has been hampered by a lack of an efficient and targeted delivery system. In our previous studies, an oriP promoter-based minicircle system successfully mediated targeted foreign gene expression in EBNA1-positive nasopharyngeal carcinoma (NPC). However, it remains to be evaluated whether this system can be applied for tumor miRNA therapy. miR-31-5p, a tumor suppressive miRNA involved in the tumorigenesis of EBV-positive NPC, was selected as the therapeutic miRNA to be transferred...
January 2, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28039581/microrna-expression-profiles-of-human-ipscs-differentiation-into-insulin-producing-cells
#3
Guido Sebastiani, Marco Valentini, Giuseppina Emanuela Grieco, Giuliana Ventriglia, Laura Nigi, Francesca Mancarella, Silvia Pellegrini, Gianvito Martino, Valeria Sordi, Lorenzo Piemonti, Francesco Dotta
AIMS: MicroRNAs are a class of small noncoding RNAs, which control gene expression by inhibition of mRNA translation. MicroRNAs are involved in the control of biological processes including cell differentiation. Here, we aim at characterizing microRNA expression profiles during differentiation of human induced pluripotent stem cells (hiPSCs) into insulin-producing cells. METHODS: We differentiated hiPSCs toward endocrine pancreatic lineage following a 18-day protocol...
December 30, 2016: Acta Diabetologica
https://www.readbyqxmd.com/read/28012097/mirna-expression-change-in-dorsal-root-ganglia-after-peripheral-nerve-injury
#4
Hsueh-Ling Chang, Hung-Chen Wang, Yi-Ta Chunag, Chao-Wen Chou, I-Ling Lin, Chung-Sheng Lai, Lin-Li Chang, Kuang-I Cheng
The role of microRNAs (miRNAs) in the regulation of nerve injury-induced neuropathic pain is unclear. The aims of this study were to assess and compare miRNA expression profiles in dorsal root ganglia (DRG) following three different kinds of peripheral nerve injury, including spinal nerve ligation (SNL), dorsal root transection (DRT), and ventral root transection (VRT), in Sprague-Dawley rats. Responses to thermal and mechanical stimuli were measured preoperatively and on postoperative days (PODs) 1, 4, and 7...
December 24, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27995756/identification-of-mir-31-5p-mir-141-3p-mir-200c-3p-and-glt1-as-human-liver-aging-markers-sensitive-to-donor-recipient-age-mismatch-in-transplants
#5
Miriam Capri, Fabiola Olivieri, Catia Lanzarini, Daniel Remondini, Vincenzo Borelli, Raffaella Lazzarini, Laura Graciotti, Maria Cristina Albertini, Elena Bellavista, Aurelia Santoro, Fiammetta Biondi, Enrico Tagliafico, Elena Tenedini, Cristina Morsiani, Grazia Pizza, Francesco Vasuri, Antonietta D'Errico, Alessandro Dazzi, Sara Pellegrini, Alessandra Magenta, Marco D'Agostino, Maurizio C Capogrossi, Matteo Cescon, Maria Rita Rippo, Antonio Domenico Procopio, Claudio Franceschi, Gian Luca Grazi
To understand why livers from aged donors are successfully used for transplants, we looked for markers of liver aging in 71 biopsies from donors aged 12-92 years before transplants and in 11 biopsies after transplants with high donor-recipient age-mismatch. We also assessed liver function in 36 age-mismatched recipients. The major findings were the following: (i) miR-31-5p, miR-141-3p, and miR-200c-3p increased with age, as assessed by microRNAs (miRs) and mRNA transcript profiling in 12 biopsies and results were validated by RT-qPCR in a total of 58 biopsies; (ii) telomere length measured by qPCR in 45 samples showed a significant age-dependent shortage; (iii) a bioinformatic approach combining transcriptome and miRs data identified putative miRs targets, the most informative being GLT1, a glutamate transporter expressed in hepatocytes...
December 20, 2016: Aging Cell
https://www.readbyqxmd.com/read/27935034/integrated-analysis-and-microrna-expression-profiling-identified-seven-mirnas-associated-with-progression-of-oral-squamous-cell-carcinoma
#6
Zhong-Yi Yan, Zhi-Qing Luo, Lai-Jian Zhang, Jia Li, Jia-Qiang Liu
MicroRNAs have been used as diagnostic and prognostic biomarkers for many cancers including oral squamous cell carcinoma (OSCC). Several studies have been shown that microRNA (miRNA) play important roles during the progression of OSCC. However, the results vary largely in different studies due to different platforms and sample sizes. In this study, we systematically evaluated a large scale of miRNA profiles from current qualified OSCC samples, and further investigated the functions of genes regulated by these key miRNAs as well as the signaling pathways through which these miRNA effect carcinogenesis...
December 9, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27926494/p38-and-jnk-pathways-control-e-selectin-dependent-extravasation-of-colon-cancer-cells-by-modulating-mir-31-transcription
#7
Liang Zhong, Bryan Simoneau, Jacques Huot, Martin J Simard
Extravasation of circulating cancer cells is a key event of metastatic dissemination that is initiated by the adhesion of cancer cells to vascular endothelial cells. It requires the interaction between adhesion receptors such as E-selectin present on endothelial cells and their ligands on cancer cells. Notably, E-selectin influences the metastatic potential of breast, bladder, gastric, pancreatic, and colorectal carcinoma as well as of leukemia and lymphoma. Here, we show that E-selectin expression induced by the pro-inflammatory cytokine IL-1β is directly and negatively regulated by miR-31...
December 2, 2016: Oncotarget
https://www.readbyqxmd.com/read/27924862/mesenchymal-stem-cell-transplantation-can-restore-lupus-disease-associated-mirna-expression-and-th1-th2-ratios-in-a-murine-model-of-sle
#8
Eun Wha Choi, MinJae Lee, Ji Woo Song, Il Seob Shin, Sung Joo Kim
C3.MRL-Fas(lpr)/J mice spontaneously develop high titers of anti-dsDNA, mild glomerular nephritis, and severe lymphoproliferation symptoms. This study aimed to compare the effects of long-term serial administration of human adipose tissue-derived mesenchymal stem cells (ASCs), and cyclophosphamide treatment in C3.MRL-Fas(lpr)/J mice using a murine SLE model. C3.MRL-Fas(lpr)/J mice were divided into saline (C), cyclophosphamide (Y), and ASC (H) treatment groups. Background-matched control C3H mice treated with saline (N) were also compared...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27909734/klf4-inhibits-tumor-growth-and-metastasis-by-targeting-microrna-31-in-human-hepatocellular-carcinoma
#9
Chuan Tian, Shanshan Yao, Li Liu, Youcheng Ding, Qingwang Ye, Xiao Dong, Yong Gao, Ning Yang, Qi Li
MicroRNAs (miRNAs or miRs) are short, endogenous non-coding RNA molecules, demonstrating abnormal expression in cancer initiation and progression. In this study, we profiled 18 differentially regulated miRNAs, including miRNA‑31, using miRNA array. Kruppel (or Krüppel)-like factor 4 (Klf4) is a transcription factor and putative tumor suppressor. Both were found to be significantly downregulated in liver cancer tissues and cells. However, little is known about the correlation between Klf4 and miRNA‑31 in hepatocellular carcinoma (HCC)...
January 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27904131/mir-31-regulates-rho-associated-kinase-myosin-light-chain-rock-mlc-pathway-and-inhibits-gastric-cancer-invasion-roles-of-rhoa
#10
Zhuo Chen, Shengnan Liu, Yuan Xia, Kejian Wu
BACKGROUND This study evaluated how the expression of miR-31 can be used to detect gastric cancer (GC) to help illuminate the role of miR-31 and RhoA in GC cells. MATERIAL AND METHODS We carried out our experiments using tissue specimens from 70 GC patients. The relative expression of miR-31 and RhoA mRNA in tissues and cells was detected by RT-PCR. The expression level of RhoA protein was detected by immunohistochemistry. GC cell line BGC-823 was transfected with six groups of vectors: blank group, NC (negative control) group, miR-31 mimics group, miR-31 mimics + RhoA group, miR-31 mimics + ROCK group, and miR-31 mimics + MLCK agonist group...
December 1, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27901018/the-signaling-axis-of-microrna-31-interleukin-25-regulates-th1-th17-mediated-inflammation-response-in-colitis
#11
T Shi, Y Xie, Y Fu, Q Zhou, Z Ma, J Ma, Z Huang, J Zhang, J Chen
Interleukin-25 (IL-25) is an important regulatory cytokine that has a key role on mucosal immune tolerance during inflammation response. However, the molecular mechanism that regulates the colonic IL-25 expression in Crohn's disease (CD) remains unclear. In this study, IL-25 level was proved to decrease in 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis mice and IL-10 knockout (KO) spontaneous colitis mice. An inverse correlation between IL-25 and miR-31 was discovered in the colons from model mice and CD patients...
November 30, 2016: Mucosal Immunology
https://www.readbyqxmd.com/read/27885434/evaluation-of-mir-21-and-mir-375-as-prognostic-biomarkers-in-oesophageal-cancer-in-high-risk-areas-in-china
#12
Yutong He, Jing Jin, LiQun Wang, Yuejiao Hu, Di Liang, Huichai Yang, Yueping Liu, Baoen Shan
MicroRNAs have been associated with prognosis in oesophageal cancer (EC), suggesting that miRNAs could play a role in guiding treatment decisions. The aim of this study was to evaluate the prognostic potential of miRNAs found to be associated with zinc deficiency in a geographical area with a high incidence of EC. miRNAs found to be associated with zinc deficiency were isolated from EC cell lines cultured with various Zn levels. The expression levels of the miRNAs were quantified using qRT-PCR. The potential prognostic value of the selected miRNAs was assessed in a cohort study of 88 patients from an area in China with a high incidence of EC...
November 24, 2016: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/27825112/mir-31-regulates-the-cisplatin-resistance-by-targeting-src-in-gallbladder-cancer
#13
Maolan Li, Wei Chen, Hongchen Zhang, Yong Zhang, Fayong Ke, Xiangsong Wu, Yijian Zhang, Mingzhe Weng, Yingbin Liu, Wei Gong
BACKGROUND: Gallbladder cancer (GBC) is a malignant tumor highly resistant to chemotherapy. MicroRNAs (miRNAs) are found extensively involved in modulation of carcinogenesis and chemoresistance. This study aimed to investigate cisplatin (DDP)-susceptibility regulated by expression of the miRNAs and underlying pathways in GBC. RESULTS: The microRNA-31 (miR-31) was selected by microarray due to the biggest fold change between DDP-resistant and parental cells. Ectopic overexpression of miR-31 decreased cell proliferation, viability and invasion capacity, but promoted apoptosis in DDP-resistant cells and in xenograft tumor models...
November 4, 2016: Oncotarget
https://www.readbyqxmd.com/read/27793031/mir-31-affects-colorectal-cancer-cells-by-inhibiting-autophagy-in-cancer-associated-fibroblasts
#14
Xiaodong Yang, Xiaohui Xu, Junjia Zhu, Shuyu Zhang, Yong Wu, Yongyou Wu, Kui Zhao, Chungen Xing, Jianping Cao, Hong Zhu, Ming Li, Zhenyu Ye, Wei Peng
Autophagy is a double-edged sword in tumor development. Recent studies have found that miRNAs have an inhibitory effect on the regulation of autophagy. It has been reported that miR-31 plays an important role in the development of colorectal cancer. However, what role miR-31 plays in colorectal cancer-associated fibroblasts (CAFs) has not been determined. In this study, we confirmed that the expression of miR-31 in CAFs was higher than in normal colorectal fibroblasts (NFs). We also found that treatment of CAFs with miR-31 mimic inhibited the expression of the autophagy-related genes Beclin-1, ATG, DRAM and LC3...
October 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27777637/integrating-dna-methylation-and-microrna-biomarkers-in-sputum-for-lung-cancer-detection
#15
Yun Su, HongBin Fang, Feng Jiang
BACKGROUND: Abnormal microRNA (miRNA) expressions and promoter methylation of genes detected in sputum may provide biomarkers for non-small lung cancer (NSCLC). Here, we evaluate the individual and combined analysis of the two classes of sputum molecular biomarkers for NSCLC detection. RESULTS: We analyze expression of 3 miRNAs (miR-21, miR-31, and miR-210) and methylation of 3 genes (RASSF1A, PRDM14, and 3OST2), which were previously identified as potential biomarkers for NSCLC, in sputum of a set of 117 stage I NSCLC patients and 174 cancer-free smokers...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27741296/post-transcriptional-regulation-of-toll-interacting-protein-in-the-intestinal-epithelium
#16
Yutaka Sugi, Kyoko Takahashi, Kenta Kurihara, Kazuaki Nakata, Hikari Narabayashi, Yuji Hamamoto, Makoto Suzuki, Masato Tsuda, Shigemasa Hanazawa, Akira Hosono, Shuichi Kaminogawa
Immune responses against gut microbiota should be minimized to avoid unnecessary inflammation at mucosal surface. In this study, we analyzed the expression patterns of Toll-interacting protein (Tollip), an inhibitor of TLRs and IL-1 family cytokine-related intracellular signaling, in intestinal epithelial cells (IECs). Comparable mRNA expression was observed in murine small and large IECs (S-IECs and L-IECs). However, Tollip protein was only detected in L-IECs, but not in S-IECs. Similar results were obtained in germ-free mice, indicating that L-IEC-specific TOLLIP expression does not depend on bacterial colonization...
2016: PloS One
https://www.readbyqxmd.com/read/27729619/role-of-an-imbalanced-mirnas-axis-in-pathogenesis-of-psoriasis-novel-perspectives-based-on-review-of-the-literature
#17
Mao-Jie Wang, Yong-Yue Xu, Run-Yue Huang, Xiu-Min Chen, Hai-Ming Chen, Ling Han, Yu-Hong Yan, Chuan-Jian Lu
BACKGROUND: Specific profile of microRNAs (miRNAs, miR) expressed in psoriasis has been identified in the past few years, while the studies on roles and molecular mechanisms of these miRNAs are still on the way. In our previous study, four specific miRNAs (miR-31, miR-203, hsa-miR-99a and miR-125b) were found to be specifically altered in psoriatic lesions.We therefore conducted a systematic literature review in this study to reveal the role of these miRNAs in the pathogenesis of psoriasis in order to inform future research...
October 8, 2016: Oncotarget
https://www.readbyqxmd.com/read/27695346/microrna-expression-profiles-predict-progression-and-clinical-outcome-in-lung-adenocarcinoma
#18
Kang Lin, Tao Xu, Bang-Shun He, Yu-Qin Pan, Hui-Ling Sun, Hong-Xin Peng, Xiu-Xiu Hu, Shu-Kui Wang
Lung cancer is one of the leading causes of cancer death worldwide. Accumulating evidence has indicated that microRNAs (miRNAs) can be proposed as promising diagnostic and prognostic markers for various cancers. The current study analyzed the miRNA expression profiles of 418 lung adenocarcinoma (LUAD) cases obtained from The Cancer Genome Atlas dataset, with the aim to investigate the relationship of miRNAs with progression and prognosis of LUAD. A total of 185 miRNAs were found to be differentially expressed between LUAD tumor tissues and adjacent normal tissues...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27659519/profiles-of-mirnas-matched-to-biology-in-aromatase-inhibitor-resistant-breast-cancer
#19
Reiner Hoppe, Ping Fan, Florian Büttner, Stefan Winter, Amit K Tyagi, Heather Cunliffe, V Craig Jordan, Hiltrud Brauch
Aromatase inhibitor (AI) resistance during breast cancer treatment is mimicked by MCF-7:5C (5C) and MCF-7:2A (2A) cell lines that grow spontaneously. Survival signaling is reconfigured but cells are vulnerable to estradiol (E2)-inducible apoptosis. These model systems have alterations of stress related pathways including the accumulation of endoplasmic reticulum, oxidative, and inflammatory stress that occur prior to E2-induced apoptosis. We investigated miRNA expression profiles of 5C and 2A to characterize their AI resistance phenotypes...
September 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/27634012/aging-associated-changes-in-microrna-expression-profile-of-internal-anal-sphincter-smooth-muscle-role-of-microrna-133a
#20
Jagmohan Singh, Ettickan Boopathi, Sankar Addya, Benjamin Phillips, Isidore Rigoutsos, Raymond B Penn, Satish Rattan
A comprehensive genomic and proteomic, computational, and physiological approach was employed to examine the (previously unexplored) role of microRNAs (miRNAs) as regulators of internal anal sphincter (IAS) smooth muscle contractile phenotype and basal tone. miRNA profiling, genome-wide expression, validation, and network analyses were employed to assess changes in mRNA and miRNA expression in IAS smooth muscles from young vs. aging rats. Multiple miRNAs, including rno-miR-1, rno-miR-340-5p, rno-miR-185, rno-miR-199a-3p, rno-miR-200c, rno-miR-200b, rno-miR-31, rno-miR-133a, and rno-miR-206, were found to be upregulated in aging IAS...
November 1, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
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