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https://www.readbyqxmd.com/read/28525390/microrna-155-attenuates-late-sepsis-induced-cardiac-dysfunction-through-jnk-and-%C3%AE-arrestin-2
#1
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
#2
Limin Yang, Yuanyuan Chen, Wei Pan, Hongyu Wang, Na Li, Bo Tang
Excess alcohol consumption and the associated development of alcoholic liver disease (ALD) is a major public health challenge in the world-wide. 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...
May 11, 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
#3
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
#4
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
#5
(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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/28225782/chronic-treatment-of-non-small-cell-lung-cancer-cells-with-gefitinib-leads-to-an-epigenetic-loss-of-epithelial-properties-associated-with-reductions-in-microrna-155-and-200c
#14
Michiko Narita, Eri Shimura, Atsumi Nagasawa, Toshiki Aiuchi, Yukari Suda, Yusuke Hamada, Daigo Ikegami, Chizuru Iwasawa, Kazuhiko Arakawa, Katsuhide Igarashi, Naoko Kuzumaki, Yusuke Yoshioka, Takahiro Ochiya, Hideyuki Takeshima, Toshikazu Ushijima, Minoru Narita
BACKGROUND: The EGFR tyrosine kinase inhibitor gefitinib is used in therapy for non-small-cell lung cancer (NSCLC). However, its application is limited by resistance-accelerated disease progression, which is accompanied by the epithelial-to-mesenchymal transition (EMT). In the present study, we performed multiple expression analyses of microRNAs (miRNAs) and quantified the expression of several related EMT players in gefitinib-resistant NSCLC cells. METHODS AND RESULTS: To establish gefitinib-resistant NSCLC cells, gefitinib-sensitive HCC827 cells, which exhibit an in-frame deletion [E746-A750] in EGFR exon 19, were exposed to gefitinib for at least 1...
2017: PloS One
https://www.readbyqxmd.com/read/28214207/microrna-155-targets-map3k10-and-regulates-osteosarcoma-cell-growth
#15
Chuangjian Wang, Xiaobo Zhang, Chunlin Zhang, Fuying Zhai, Ying Li, Zongqiang Huang
Osteosarcoma is the most common type of bone cancer prevalent in young adults. Recent studies suggested that aberrant microRNA expression plays an essential role in osteosarcoma pathogenesis. In this study, we found miR-155 up-regulation in different osteosarcoma cell lines U2OS, Saos-2 and MG-63. Through bioinformatic prediction and analysis, we identified its target MAP3K10 that involved in cell proliferation and apoptosis. This work demonstrates novel interaction between microRNA, intercellular MAPK signaling and apoptosis in osteosarcoma, which will provide targets for therapeutic development...
February 1, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28198398/microrna-155-controls-exosome-synthesis-and-promotes-gemcitabine-resistance-in-pancreatic-ductal-adenocarcinoma
#16
Manabu Mikamori, Daisaku Yamada, Hidetoshi Eguchi, Shinichiro Hasegawa, Tomoya Kishimoto, Yoshito Tomimaru, Tadafumi Asaoka, Takehiro Noda, Hiroshi Wada, Koichi Kawamoto, Kunihito Gotoh, Yutaka Takeda, Masahiro Tanemura, Masaki Mori, Yuichiro Doki
The cancer drug gemcitabine (GEM) is a key drug for treating pancreatic ductal adenocarcinoma (PDAC), but PDAC cells develop chemoresistance after long-term administration. Since the tolerance was immediately spread to every PDAC tissue in a patient, it is assumed that some certain efficient mechanisms underlay in the development of chemoresistance. Changes in the levels of particular microRNAs or alterations in intercellular communication play a dominant role in chemoresistance development, and recent data also suggest that exosomes play an important role in this process...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194952/-off-to-on-surface-enhanced-raman-spectroscopy-platform-with-padlock-probe-based-exponential-rolling-circle-amplification-for-ultrasensitive-detection-of-microrna-155
#17
Yi He, Xia Yang, Ruo Yuan, Yaqin Chai
In this work, an "off" to "on" surface-enhanced Raman spectroscopy (SERS) platform was constructed for ultrasensitive detection of microRNA (miRNA) by using a magnetic SERS substrate (Co@C/PEI/Ag) and padlock probe-based exponential rolling circle amplification (P-ERCA) strategy. Herein, miRNA 155 could act as primers to initiate rolling circle amplification (RCA) for producing a long repeat sequence, and then the obtained DNA would be cleaved into two kinds of single-stranded DNAs in the presence of nickase...
February 13, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28193634/purified-streptococcus-pneumoniae-endopeptidase-o-pepo-enhances-particle-uptake-by-macrophages-in-a-toll-like-receptor-2-and-mir-155-dependent-manner
#18
Hua Yao, Hong Zhang, Kai Lan, Hong Wang, Yufeng Su, Dagen Li, Zhixin Song, Fang Cui, Yibing Yin, Xuemei Zhang
Insights into the host-microbial virulence factor interaction, especially the immune signaling mechanisms, could provide novel prevention and treatment options for pneumococcal diseases. Streptococcus pneumoniae endopeptidase O (PepO) is a newly discovered and ubiquitously expressed pneumococcal virulence protein. A PepO-mutant strain showed impaired adherence to and invasion of host cells compared with the isogenic wild-type strain. It is still unknown whether PepO is involved in the host defense response to pneumococcal infection...
April 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28174416/microrna-155-promotes-g-csf-induced-mobilization-of-murine-hematopoietic-stem-and-progenitor-cells-via-propagation-of-cxcl12-signaling
#19
T Itkin, A Kumari, E Schneider, S Gur-Cohen, C Ludwig, R Brooks, O Kollet, K Golan, E Khatib-Massalha, C M Russo, J D Chisholm, A Rouhi, H Geiger, E Hornstein, W G Kerr, F Kuchenbauer, T Lapidot
No abstract text is available yet for this article.
February 24, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28164567/the-prognostic-value-of-plasma-microrna-155-and-microrna-146a-level-in-severe-sepsis-and-sepsis-induced-acute-lung-injury-patients
#20
Yan Han, Yong Li, Ying Jiang
BACKGROUND: Sepsis induced acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are lifethreatening disorders. Acute Physiology and Chronic Health Evaluation (APACHE) scores and several plasma biological markers have been identified to predict the death or treatment outcome of sepsis induced ALI. Immune related microRNAs also have the potential as biomarkers to monitor this kind of disease. METHODS: A total of 44 patients with severe sepsis, 102 patients with sepsis, and 19 healthy volunteers were enrolled in this study...
December 1, 2016: Clinical Laboratory
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