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microRNA-155

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https://www.readbyqxmd.com/read/28640790/microrna-155-deficiency-in-kupffer-cells-ameliorates-liver-ischemia-reperfusion-injury-in-mice
#1
Yakun Li, Dongxia Ma, Zhimin Wang, Jun Yang
BACKGROUND: MicroRNA-155 (miR-155) is known to be involved in autoimmune diseases, inflammation, and transplantation. However, its role in a warm hepatic ischemia-reperfusion (IR) model has not been fully elucidated. METHODS: Partial hepatic IR was performed in wild-type and miR-155-deficient mice treated with or without GdCl3, and then the serum transaminase concentration and histology were analyzed. Kupffer cells (KCs) were isolated from the liver after IR, and immunohistochemistry was used to evaluate activation and polarization...
July 2017: Transplantation
https://www.readbyqxmd.com/read/28618414/failed-downregulation-of-circulating-microrna-155-as-a-marker-of-adverse-left-ventricular-remodeling-a-new-useful-tool-for-cardiologists
#2
https://www.readbyqxmd.com/read/28618412/failed-downregulation-of-circulating-microrna-155-in-the-early-phase-after-st-elevation-myocardial-infarction-is-associated-with-adverse-left-ventricular-remodeling
#3
Sam C Latet, Paul L Van Herck, Marc J Claeys, Amaryllis H Van Craenenbroeck, Steven E Haine, Tom R Vandendriessche, Viviane O Van Hoof, Erik Fransen, Benedicte Y De Winter, Emeline M Van Craenenbroeck, Hein Heidbuchel, Christiaan J Vrints, Vicky Y Hoymans
BACKGROUND: MicroRNA are noncoding RNA that have a significant role in both inflammatory and cardiovascular diseases. AIMS: We aimed to assess whether the inflammation-related microRNA-155 is associated with the development of adverse left ventricular (LV) remodeling following ST elevation myocardial infarction (STEMI). METHODS: Peripheral blood samples were collected in the inflammatory (day 2), proliferative (day 5), and maturation phases (6 months) after STEMI (n = 20)...
June 16, 2017: Cardiology
https://www.readbyqxmd.com/read/28565840/overexpression-of-mir-155-in-clear-cell-renal-cell-carcinoma-and-its-oncogenic-effect-through-targeting-foxo3a
#4
Hong Ji, Dong Tian, Bing Zhang, Yangyang Zhang, Dongliang Yan, Shuhua Wu
MicroRNA-155 (miR-155) is overexpressed in numerous human cancer types and has an oncogenic role. Previous study has revealed that miR-155 serves an important role in the progression of clear-cell renal cell carcinoma (ccRCC); however, the underlying mechanism was not completely clarified. The present study aimed to investigate the biological role of miR-155 in ccRCC and the underlying molecular mechanisms. The expression of miR-155 in 20 ccRCC and adjacent normal kidney tissues was determined by PCR. After downregulation of miR-155 expression by miR-155 inhibitor, cell growth was assessed by MTT and colony formation assays...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28562349/microrna-155-induced-by-foxp3-through-transcriptional-repression-of-brca1-is-associated-with-tumor-initiation-in-human-breast-cancer
#5
Song Gao, Yicun Wang, Meng Wang, Zhi Li, Zhiying Zhao, Raymond X Wang, Rong Wu, Zhengwei Yuan, Ranji Cui, Kai Jiao, Lizhong Wang, Ling Ouyang, Runhua Liu
MicroRNA (miR)-155 is upregulated in breast cancer cells and in sera of patients with breast cancer, but its clinical relevance remains uncertain. The objective of the present effort was to address the transcriptional regulation of miR-155. A bioinformatics analysis of public datasets validated upregulation of miR-155 in tumor cells of patients with breast cancer, particularly those who were at early stages and had triple-negative cancers. The expression profiling and clinical relevance of miR-155 in tumor cells and blood cells were characterized by TaqMan miR assays and, in plasma and exosomes, by nest-quantitative PCR analysis...
June 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28553316/microrna-155-and-anti-m%C3%A3-llerian-hormone-new-potential-markers-of-subfertility-in-men-with-chronic-kidney-disease
#6
Dag Eckersten, Christos Tsatsanis, Aleksander Giwercman, Laila Bruun, Mats Pihlsgård, Anders Christensson
BACKGROUND/AIMS: Men with terminal renal failure are often infertile. Anti-müllerian hormone (AMH), a marker of Sertoli cell function, is decreased among men with chronic kidney disease (CKD). Recently, a microRNA, miR-155, has been shown to be a potential marker for subfertility. We studied miR-155 and semen parameters in patients with CKD who were not yet on dialysis. We also aimed to study possible associations between AMH, miR-155, and semen parameters to evaluate them as markers of fertility...
January 2017: Nephron Extra
https://www.readbyqxmd.com/read/28550396/genistein-protects-against-ox-ldl-induced-inflammation-through-microrna-155-socs1-mediated-repression-of-nf-%C3%A4-b-signaling-pathway-in-huvecs
#7
Huaping Zhang, Zhenxiang Zhao, Xuefen Pang, Jian Yang, Haixia Yu, Yinhong Zhang, Hui Zhou, Jiahui Zhao
Genistein plays an important role in the prevention of atherosclerosis. However, the underlying mechanisms have not been fully investigated. In this study, human umbilical vein endothelial cells (HUVECs) were pretreated with genistein (10, 100, and 1000 nM) for 6 h and then exposed to ox-LDL (50 mg/L) for another 24 h. Results showed that ox-LDL induced the expressions of E-selectin, P-selectin, monocyte chemotactic protein-1, interleukin-8, vascular adhesion molecule-1, and intercellular adhesion molecule-1, which were counteracted by genistein...
May 27, 2017: Inflammation
https://www.readbyqxmd.com/read/28525390/microrna-155-attenuates-late-sepsis-induced-cardiac-dysfunction-through-jnk-and-%C3%AE-arrestin-2
#8
Yu Zhou, Yan Song, Zahir Shaikh, Hui Li, Haiju Zhang, Yi Caudle, Shouhua Zheng, Hui Yan, Dan Hu, Charles Stuart, Deling Yin
Cardiac dysfunction is correlated with detrimental prognosis of sepsis and contributes to a high risk of mortality. After an initial hyperinflammatory reaction, most patients enter a protracted state of immunosuppression (late sepsis) that alters both innate and adaptive immunity. The changes of cardiac function in late sepsis are not yet known. MicroRNA-155 (miR-155) is previously found to play important roles in both regulations of immune activation and cardiac function. In this study, C57BL/6 mice were operated to develop into early and late sepsis phases, and miR-155 mimic was injected through the tail vein 48 h after cecal ligation and puncture (CLP)...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28492308/visualizing-the-conversion-process-of-alcohol-induced-fatty-liver-to-steatohepatitis-in-vivo-with-a-fluorescent-nanoprobe
#9
Limin Yang, Yuanyuan Chen, Wei Pan, Hongyu Wang, Na Li, Bo Tang
Excess alcohol consumption and the associated development of alcoholic liver disease (ALD) are major public health challenges worldwide. Since patients with the severe stages of ALD no longer benefit from clinical therapies, early warning of ALD holds significant promise for increasing the cure rate of ALD. Herein, we develop a bicolor fluorescent nanoprobe for dynamically monitoring the conversion process of alcohol-induced fatty liver to steatohepatitis in vivo through simultaneous imaging of microRNA 155 and osteopontin mRNA, which are related to fatty liver and steatohepatitis, respectively...
June 6, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28472765/down-regulation-of-microrna-155-promotes-selenium-deficiency-induced-apoptosis-by-tumor-necrosis-factor-receptor-superfamily-member-1b-in-the-broiler-spleen
#10
Ci Liu, Zhepeng Sun, Zhe Xu, Tianqi Liu, Tingru Pan, Shu Li
The aim of this work was to explore the microRNA profile and the effect of microRNA-155 on apoptosis in the spleen of selenium-deficient broilers. We replicated the splenic-apoptotic model in selenium-deficient broilers. In vitro, microRNA-155 oligonucleotides were transfected into lymphocytes and subsequently treated with H2O2. We observed that selenium deficiency altered the microRNA profile and decreased the expression of microRNA-155 in the broiler spleens. Tumor necrosis factor receptor superfamily member 1B was verified as a target of microRNA-155 in the splenocytes...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28471953/association-of-microrna-155-interleukin-17a-and-proteinuria-in-preeclampsia
#11
Xu Yang, Jie Zhang, Yiling Ding
BACKGROUND: This study aimed to explore the correlation between microRNA-155 (miR-155), interleukin 17A (IL-17), and late preeclampsia (PE) using biochemical parameters in maternal serum and urine. METHODS: Sixty patients with PE were recruited to this study and were divided into 3 groups according to levels of urinary protein: mild urinary protein group (group A); moderate urinary protein group (group B); and severe urinary protein group (group C). All subjects presented with late onset PE (≥32 weeks)...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28458441/erratum-modulation-of-hippocampal-gene-expression-of-microrna-146a-microrna-155-nuclear-factor-kappa-b-inflammatory-signaling-by-troxerutin-in-healthy-and-diabetic-rats
#12
(no author information available yet)
[This corrects the article on p. 675 in vol. 48, PMID: 28066106.].
January 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28423578/endothelial-microparticles-delivering-microrna-155-into-t-lymphocytes-are-involved-in-the-initiation-of-acute-graft-versus-host-disease-following-allogeneic-hematopoietic-stem-cell-transplantation
#13
Ran Zhang, Xiaoxiao Wang, Mei Hong, Ting Luo, Miaomiao Zhao, Haorui Shen, Jun Fang, Xiaojie Li, Sibin Zang, Ping Chen, Dimin Nie, Peng Zheng, Qiuling Wu, Linghui Xia
Endothelial microparticles (EMPs) upregulation has been observed in acute graft-versus-host disease (aGVHD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). However, the role of EMPs remains unclear. We found that EMPs derived from TNF-α-stimulated human umbilical vein endothelial cells (EA.hy926) concentrated more microRNA-155 (miR-155) compared with maternal cells. The miR-155 levels in MPs from peripheral blood of aGVHD patients and mice were remarkably elevated and significantly higher than the levels in plasma...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407320/role-of-tlr4-and-mir-155-in-peripheral-blood-mononuclear-cell-mediated-inflammatory-reaction-in-coronary-slow-flow-and-coronary-arteriosclerosis-patients
#14
Jiangyan Huang, Qin Yang, Longmiao He, Jun Huang
BACKGROUND: To study the role of toll-like receptor 4 (TLR4) and MicroRNA-155 (miR-155) in the peripheral blood mononuclear cell (PBMC)-mediated inflammation in coronary slow flow (CSF) and coronary arteriosclerosis. METHODS: Patients were divided into acute coronary syndrome (ACS), stable angina pectoris (SAP), CSF, and healthy control (HC) groups. The isolated PBMCs were treated with lipopolysaccharide (LPS)/and antagomiR-155. TLR4, miR-155, and the concentrations of tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-1, and IL-10 were measured...
April 13, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28355202/microrna-155-modulates-bile-duct-inflammation-via-targeting-suppressor-of-cytokine-signaling-1-in-biliary-atresia
#15
Rui Zhao, Rui Dong, Yifan Yang, Yuqing Wang, Jin Ma, Jiang Wang, Hao Li, Shan Zheng
BACKGROUND: Biliary atresia (BA) is an etiologically perplexing disease, manifested by neonatal cholestasis, repeated cholangitis, and progressive biliary fibrosis. MiR-155 has been implicated to modulate the immune response, which contributes to biliary injury. However, its potential role in the pathogenesis of BA has not been addressed so far. METHODS: The microRNA changes from BA patients and controls were identified via microarray. The immunomodulatory function of miR-155 was investigated via cell transfection and reporter assay system...
March 29, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28319523/plasma-levels-of-microrna-155-are-upregulated-with-long-term-left-ventricular-assist-device-support
#16
Teresa Wang, Emily C O'Brien, Joseph G Rogers, Daniel L Jacoby, Michael E Chen, Jeffrey M Testani, Dawn E Bowles, Carmelo A Milano, G Michael Felker, Chetan B Patel, Pramod N Bonde, Tariq Ahmad
Left ventricular assist device (LVAD) therapy unloads the failing heart but exposes the human body to unique pathophysiologic demands such as continuous blood flow and complete univentricular support, which are associated with increased risk of adverse clinical outcomes. MicroRNAs (miRNAs) are 22-23 nucleotide RNAs involved in regulation of multiple biologic processes including the pathogenesis of heart failure (HF). Thus, measurement of miRNAs may have potential in both diagnostics as circulating biomarkers and in therapeutics for targeted interventions...
May 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28292310/microglial-derived-microparticles-mediate-neuroinflammation-after-traumatic-brain-injury
#17
Alok Kumar, Bogdan A Stoica, David J Loane, Ming Yang, Gelareh Abulwerdi, Niaz Khan, Asit Kumar, Stephen R Thom, Alan I Faden
BACKGROUND: Local and systemic inflammatory responses are initiated early after traumatic brain injury (TBI), and may play a key role in the secondary injury processes resulting in neuronal loss and neurological deficits. However, the mechanisms responsible for the rapid expansion of neuroinflammation and its long-term progression have yet to be elucidated. Here, we investigate the role of microparticles (MP), a member of the extracellular vesicle family, in the exchange of pro-inflammatory molecules between brain immune cells, as well as their transfer to the systemic circulation, as key pathways of inflammation propagation following brain trauma...
March 15, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28281962/microrna-155-downregulation-promotes-cell-cycle-arrest-and-apoptosis-in-diffuse-large-b-cell-lymphoma
#18
Fu-Qiang Zhu, Li Zeng, Na Tang, Ya-Ping Tang, Bo-Ping Zhou, Fang-Fang Li, Wei-Gang Wu, Xiao-Bing Zeng, Shu-Song Peng
Diffuse large B-cell lymphoma (DLBCL) is the most common non-Hodgkin's lymphoma in the adult population, and treatment of DLBCL is still unfavorable. Therefore, there is an urgent requirement to investigate the molecular mechanisms underlying DLBCL tumorigenesis. To study the potential function of microRNA-155 (miR-155) involved in the regulation of lymphoma, we monitored lymphoma cell behavior including proliferation, cell cycle, and apoptosis using CCK-8 and flow cytometry analysis. Real-time PCR was used to detect the expression levels of miR-155 in 118 lymphoma patients' tissues, and Western blot was also used to analyze the expression level of proteins correlated with cell cycle and apoptosis in lymphoma cells...
October 27, 2016: Oncology Research
https://www.readbyqxmd.com/read/28264607/anti-inflammatory-effects-of-curcumin-are-associated-with-down-regulating-microrna-155-in-lps-treated-macrophages-and-mice
#19
Feiya Ma, Fei Liu, Liang Ding, Ming You, Huimin Yue, Yujie Zhou, Yayi Hou
CONTEXT: The natural polyphenolic compound curcumin has been proved to modulate innate immune responses and possess anti-inflammatory properties. Nevertheless, the mechanism remains poorly understood, particularly regarding curcumin-regulated miRNAs under inflammatory response. OBJECTIVE: This study investigates the role of miRNA-155 in the effects of curcumin on inflammatory response in cell and a mouse model. MATERIALS AND METHODS: The anti-inflammatory activity of curcumin (5, 10 and 15 μM, 2 h) in lipopolysaccharide (LPS, 200 ng/mL)-induced cells were measured by quantitative PCR...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28246471/microrna-155-promotes-the-pathogenesis-of-experimental-colitis-by-repressing-ship-1-expression
#20
Zhan-Jun Lu, Jian-Jiong Wu, Wei-Liang Jiang, Jun-Hua Xiao, Kai-Zhong Tao, Lei Ma, Ping Zheng, Rong Wan, Xing-Peng Wang
AIM: To explore the mechanism by which microRNA-155 (miR-155) regulates the pathogenesis of experimental colitis. METHODS: A luciferase assay was performed to confirm the binding of miR-155 to the SHIP-1 3'-UTR. MiR-155 mimics, negative controls and SHIP-1 expression/knockdown vectors were established and then utilized in gain- and loss-of-function studies performed in raw264.7 cells and primary bone marrow-derived macrophages (BMDMs). Thereafter, dextran sulfate sodium (DSS)-induced colitis mouse model with or without antagomiR-155 treatment was established, and the levels of miR-155 and SHIP-1, as well as the pro-inflammatory capabilities, were measured by western blot, quantitative polymerase chain reaction, and immunohistochemistry...
February 14, 2017: World Journal of Gastroenterology: WJG
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