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MiR-181b

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https://www.readbyqxmd.com/read/29324442/the-epithelial-to-mesenchymal-transition-activator-zeb1-initiates-a-prometastatic-competing-endogenous-rna-network
#1
Xiaochao Tan, Priyam Banerjee, Xin Liu, Jiang Yu, Don L Gibbons, Ping Wu, Kenneth L Scott, Lixia Diao, Xiaofeng Zheng, Jing Wang, Ali Jalali, Milind Suraokar, Junya Fujimoto, Carmen Behrens, Xiuping Liu, Chang-Gong Liu, Chad J Creighton, Ignacio I Wistuba, Jonathan M Kurie
Epithelial tumor cells undergo epithelial-to-mesenchymal transition (EMT) to gain metastatic activity. Competing endogenous RNAs (ceRNAs) have binding sites for a common set of microRNAs (miRs) and regulate each other's expression by sponging miRs. Here, we address whether ceRNAs govern EMT-driven metastasis. High miR-181b levels were correlated with an improved prognosis in human lung adenocarcinomas, and metastatic tumor cell lines derived from a murine lung adenocarcinoma model in which metastasis is EMT-driven were enriched in miR-181b targets...
January 11, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29319157/mir-181b-induced-smad7-downregulation-controls-granulosa-cell-apoptosis-through-tgf-%C3%AE-signaling-by-interacting-with-the-tgfbr1-promoter
#2
Wang Yao, Zengxiang Pan, Xing Du, Jinbi Zhang, Qifa Li
SMAD7 disrupts the TGF-β signaling pathway by influencing TGFBR1 stability and by blocking the binding of TGFBR1 to SMAD2/3. In this study, we showed that SMAD7 attenuated the TGF-β signaling pathway in ovarian granulosa cells (GCs) by regulating TGFBR1 transcriptional activity. To function as a transcription factor, SMAD7 downregulated the mRNA levels of TGFBR1 via direct binding to the SMAD-binding elements (SBEs) within the promoter region of pig TGFBR1. We also showed that SMAD7 enhanced porcine GC apoptosis by interrupting TGFBR1 and the TGF-β signaling pathway...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29226955/stem-cells-rescue-cardiomyopathy-induced-by-p-gingivalis-lps-via-mir-181b
#3
Tung-Sheng Chen, Sarnai Battsengel, Chia-Hua Kuo, Lung-Fa Pan, Yueh-Min Lin, Chun-Hsu Yao, Yueh-Sheng Chen, Feng-Huei Lin, Wei-Wen Kuo, Chih-Yang Huang
Systemic inflammation induced by bacterial infection is one of several causative agents for cardiovascular disorders in patients with periodontal disease. Experimental results indicate that miRNAs play important roles in systemic inflammation induced by endotoxins. Further evidence states that stem cell based therapy shows potential in the treatment of inflammatory responses induced by sepsis. This study investigates if stem cells show protective effects on cardiomyocyte damage induced by porphyromonas gingivalis-LPS (Pg-LPS) through regulating miRNAs...
December 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29204146/intracellular-s100a9-promotes-myeloid-derived-suppressor-cells-during-late-sepsis
#4
Jun Dai, Ajinkya Kumbhare, Dima Youssef, Charles E McCall, Mohamed El Gazzar
Myeloid precursor cell reprogramming into a myeloid-derived suppressor cell (MDSC) contributes to high mortality rates in mouse and human sepsis. S100A9 mRNA and intracellular protein levels increase during early sepsis and remain elevated in Gr1+CD11b+ MDSCs after pro-inflammatory sepsis transitions to the later chronic anti-inflammatory and immunosuppressive phenotype. The purpose of this study was to determine whether intracellular S100A9 protein might sustain Gr1+CD11b+ MDSC repressor cell reprogramming during sepsis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29172874/nfia-deletion-in-myeloid-cells-blocks-expansion-of-myeloid-derived-suppressor-cells-during-sepsis
#5
Jun Dai, Ajinkya Kumbhare, Danielle A Williams, Dima Youssef, Zhi Q Yao, Charles E McCall, Mohamed El Gazzar
Sepsis-induced immunosuppression increases the risk of chronic infection and reduces survival. Myeloid-derived suppressor cells (MDSCs) expand in the bone marrow and spleen during murine polymicrobial sepsis, contributing to immunosuppression. A better understanding of molecular controls of MDSC production is needed to identify treatment targets. We previously reported that miR-21 and miR-181b couple with transcription factor NFI-A to induce MDSCs during murine sepsis. Here, we expand upon these observations by showing that conditional deletion of the Nfia gene in the myeloid lineage precludes MDSC development...
January 1, 2017: Innate Immunity
https://www.readbyqxmd.com/read/29136944/miat-promotes-proliferation-and-hinders-apoptosis-by-modulating-mir-181b-stat3-axis-in-ox-ldl-induced-atherosclerosis-cell-models
#6
Xiaoming Zhong, Xiang Ma, Lei Zhang, Yanming Li, Yunwei Li, Ruili He
BACKGROUND: Plenty of lncRNAs and microRNAs have been identified to be critical mediators in the progression of atherosclerosis (AS). Myocardial infarction-associated transcript (MIAT) were aberrantly high expressed and closely associated with the pathogenesis of AS. However, its molecular mechanism has not been well characterized. METHODS: The expression patterns of MIAT and microRNA-181b (miR-181b) in clinical samples and cells were measured by RT-qPCR assays...
November 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29127368/diagnostic-value-of-blood-derived-micrornas-for-schizophrenia-results-of-a-meta-analysis-and-validation
#7
Sha Liu, Fuquan Zhang, Xijin Wang, Yin Yao Shugart, Yingying Zhao, Xinrong Li, Zhifen Liu, Ning Sun, Chunxia Yang, Kerang Zhang, Weihua Yue, Xin Yu, Yong Xu
There is an increasing interest in searching biomarkers for schizophrenia (SZ) diagnosis, which overcomes the drawbacks inherent with the subjective diagnostic methods. MicroRNA (miRNA) fingerprints have been explored for disease diagnosis. We performed a meta-analysis to examine miRNA diagnostic value for SZ and further validated the meta-analysis results. Using following terms: schizophrenia/SZ, microRNA/miRNA, diagnosis, sensitivity and specificity, we searched databases restricted to English language and reviewed all articles published from January 1990 to October 2016...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29116110/publisher-correction-pp2a-inhibition-from-lb100-therapy-enhances-daunorubicin-cytotoxicity-in-secondary-acute-myeloid-leukemia-via-mir-181b-1-upregulation
#8
Chao Hu, Mengxia Yu, Yanling Ren, Kongfei Li, Dominic M Maggio, Chen Mei, Li Ye, Juying Wei, Jie Jin, Zhengping Zhuang, Hongyan Tong
A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29113265/cdx2-is-involved-in-microrna-associated-inflammatory-carcinogenesis-in-gastric-cancer
#9
Motonobu Saito, Hirokazu Okayama, Katsuharu Saito, Jin Ando, Kensuke Kumamoto, Izumi Nakamura, Shinji Ohki, Yoshimasa Ishi, Seiichi Takenoshita
The development of gastric cancer is significantly associated with chronic inflammation, such as caused by Helicobacter pylori (H. pylori) infection. Caudal-type homeobox 2 (CDX2) is a homeobox protein involved in intestinal differentiation in normal and in aberrant locations, and is associated with inflammation. The authors of the present study have previously reported that CDX2 may have a suppressive role in the progression and carcinogenesis of gastric carcinoma. In the present study, the authors initially confirmed that a decreased expression of CDX2, as detected by immunohistochemistry, is associated with poor cancer-specific survival in 210 gastric cancer cases, which is consistent with several previously published studies...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29044225/microrna-181b-is-increased-in-cystic-fibrosis-cells-and-impairs-lipoxin-a4-receptor-dependent-mechanisms-of-inflammation-resolution-and-antimicrobial-defense
#10
Anna Maria Pierdomenico, Sara Patruno, Marilina Codagnone, Felice Simiele, Veronica Cecilia Mari, Roberto Plebani, Antonio Recchiuti, Mario Romano
The involvement of microRNA (miR) in cystic fibrosis (CF) pathobiology is rapidly emerging. We previously documented that miR-181b controls the expression of the ALX/FPR2 receptor, which is recognized by the endogenous proresolution ligand, lipoxin (LX)A4. Here, we examined whether the miR-181b-ALX/FPR2 circuit was altered in CF. We examined human airways epithelial cells, normal (16HBE14o-), carrying the ΔF508 mutation (CFBE41o-) or corrected for this mutation (CFBE41o-/CEP-CFTR wt 6.2 kb), as well as monocyte-derived macrophages (MΦs) from CF patients...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29044172/circulating-mir-19b-and-mir-181b-are-potential-biomarkers-for-diabetic-cardiomyopathy
#11
Camila Uribe Copier, Luis León, Mauricio Fernández, David Contador, Sebastián D Calligaris
Diabetic cardiomyopathy is characterized by metabolic changes in the myocardium that promote a slow and silent dysfunction of muscle fibers, leading to myocardium remodelling and heart failure, independently of the presence of coronary artery diseases or hypertension. At present, no imaging methods allow an early diagnosis of this disease. Circulating miRNAs in plasma have been proposed as biomarkers in the prognosis of several cardiac diseases. This study aimed to determine whether circulating miRNAs could be potential biomarkers of diabetic cardiomyopathy...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28994735/prediction-potential-of-serum-mir-155-and-mir-24-for-relapsing-early-breast-cancer
#12
Petra Bašová, Michal Pešta, Marek Sochor, Tomáš Stopka
Oncogenic microRNAs (oncomiRs) accumulate in serum due to their increased stability and thus serve as biomarkers in breast cancer (BC) pathogenesis. Four oncogenic microRNAs (miR-155, miR-19a, miR-181b, and miR-24) and one tumor suppressor microRNA (let-7a) were shown to differentiate between high- and low-risk early breast cancer (EBC) and reflect the surgical tumor removal and adjuvant therapy. Here we applied the longitudinal multivariate data analyses to stochastically model the serum levels of each of the oncomiRs using the RT-PCR measurements in the EBC patients (N = 133) that were followed up 4 years after diagnosis...
October 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28944406/downregulated-adhesion-associated-micrornas-as-prognostic-predictors-in-childhood-osteosarcoma
#13
L E A Delsin, G M Roberto, P F Fedatto, E E Engel, C A Scrideli, L G Tone, M S Brassesco
miRNAs have been identified as key regulators of almost all cellular processes, therefore, their dysregulation is involved with several diseases, including cancer. miRNAs specifically related to the metastastic cascade are called metastamiRs and can be involved with different steps of this process, including loss of adhesion. Osteosarcoma (OS) is the most common primary malignant pediatric bone tumor that often presents metastatic disease at diagnosis; therefore, a deeper study of adhesion-associated miRNAs could shed light on its pathophysiology...
September 25, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28934717/expression-of-c-ebp%C3%AE-in-myeloid-progenitors-during-sepsis-promotes-immunosuppression
#14
Jun Dai, Ajinkya Kumbhare, Dima Youssef, Zhi Q Yao, Charles E McCall, Mohamed El Gazzar
Sepsis-induced myeloid-derived suppressor cells (MDSCs) contribute to immunosuppression associated with sepsis. We reported that the CCAAT enhancer-binding protein C/EBPβ activates microRNA (miR)-21 and miR-181b expressions, which induce transcription factor NFI-A to support the generation and expansion of MDSCs in the bone marrow and spleens of septic mice. Here, using a conditional knockout mouse model lacking C/EBPβ in the myeloid lineage, we find that without C/EBPβ, myeloid progenitor cells could not express miR-21 or miR-181b, and ectopic expression of C/EBPβ in the C/EBPβ-deficient myeloid progenitors activated the expression of the two miRNAs...
November 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28916639/small-rna-seq-during-acute-maximal-exercise-reveal-rnas-involved-in-vascular-inflammation-and-cardiometabolic-health
#15
Ravi Shah, Ashish S Yeri, Avash Das, Amanda Courtright-Lim, Olivia Ziegler, Ernest Gervino, Jeffrey Ocel, Pablo Quintero Pinzon, Luke Wooster, Cole Shields Bailey, Kahraman Tanriverdi, Lea Beaulieu, Jane E Freedman, Ionita Ghiran, Gregory D Lewis, Kendall Van Keuren-Jensen, Saumya Das
OBJECTIVE: Exercise improves cardiometabolic and vascular function, though mechanisms remain unclear. Our objective was to demonstrate the diversity of circulating extracellular RNA (ex-RNA) release during acute exercise in humans and its relevance to exercise-mediated benefits on vascular inflammation. Approach and Results: We performed plasma small RNA sequencing (RNA-seq) in 26 individuals undergoing symptom-limited maximal treadmill exercise, with replication of our top candidate miRNA in a separate cohort of 59 individuals undergoing bicycle ergometry...
September 15, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28916633/systems-genetics-identifies-a-co-regulated-module-of-liver-micrornas-associated-with-plasma-ldl-cholesterol-in-murine-diet-induced-dyslipidemia
#16
Alisha R Coffey, Tangi L Smallwood, Jody Albright, Kunjie Hua, Matt Kanke, Daniel Pomp, Brian J Bennett, Praveen Sethupathy
Chronically altered levels of circulating lipids, termed dyslipidemia, is a significant risk factor for a number of metabolic and cardiovascular morbidities. MicroRNAs (miRNAs) have emerged as important regulators of lipid balance, have been implicated in dyslipidemia, and have been proposed as candidate therapeutic targets in lipid-related disorders including atherosclerosis. A major limitation of most murine studies of miRNAs in lipid metabolic disorders is that they have been performed in just one (or very few) inbred strains, such as C57BL/6...
November 1, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28912851/molecular-mechanism-of-mir-181b-in-heart-disease-due-to-pregnancy-induced-hypertension-syndrome
#17
Zheng Gao, Li Wang, Jinyun Wang, Fengyong Yang, Jin Qu
The present study aimed to investigate the molecular mechanisms of microRNA (miR)-181b in heart disease due to hypertensive disorders complicating pregnancy (HDCP) through regulating the expression of metallopeptidase inhibitor 3 (TIMP3). miR-181b expression was detected by reverse transcription-quantitative polymerase chain reaction in peripheral blood samples from patients with HDCP. These samples were analyzed for clinical pathological characteristics. The primary cardiomyocytes of rats were cultured in hypoxic conditions for 24 h, in which miR-181b expression was detected at different time points...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28899784/mir-181b-regulates-steatosis-in-nonalcoholic-fatty-liver-disease-via-targeting-sirt1
#18
Yunxia Wang, Kongxi Zhu, Weihua Yu, Hongjuan Wang, Lan Liu, Qiong Wu, Shuai Li, Jianqiang Guo
Non-alcoholic fatty liver diseases (NAFLD) is one of the leading cause of chronic liver diseases in the world. However, the pathogenesis of NAFLD is still unclear. Emerging studies have demonstrated that microRNAs (miRs) are profoundly involved in NAFLD and related metabolic diseases. Here, we investigated the mechanisms by which miR-181b influences NAFLD via direct targeting SIRT1. The expression of miR181b was up-regulated while SIRT1 was down-regulated in both human NAFLD patients and high fat diet (HFD) induced NAFDL mice model...
November 4, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28877608/genome-wide-integrative-analysis-identified-snp-mirna-mrna-interaction-networks-in-peripheral-blood-mononuclear-cells
#19
Xiang Lin, Wei Xia, Wei Ji, Fang-Fei Xie, Pei He, Xiao-Wei Zhu, Yong-Hong Zhang, Fei-Yan Deng, Shu-Feng Lei
AIM: To detect SNP-miRNA-mRNA interaction networks and to elucidate miRNA-mediated regulation effects on mRNA expression. MATERIALS & METHODS: In human peripheral blood mononuclear cells of 43 females, SNP-miRNA-mRNA interaction networks were established through an integrative analysis. Then causal inference test was followed to detect miRNA-mediated effects on mRNA expressions. RESULTS: About 167 trios corresponding to 56 SNPs, 20 miRNAs and 47 target-mRNAs have the SNP-miRNA-mRNA interactions, but only 22 trios have miRNA-mediated effects between SNP and mRNA...
September 7, 2017: Epigenomics
https://www.readbyqxmd.com/read/28841043/prognostic-value-of-mirna-181a-b-in-colorectal-cancer-a-meta-analysis
#20
Xingwei Gu, Rong Jin, Xuping Mao, Jun Wang, Jintao Yuan, Guodong Zhao
AIMS: miR-181a and miR-181b have been investigated as prognostic biomarkers of colorectal cancer (CRC). However, there is controversy about the role of miR-181a and miR-181b in predicting CRC prognosis. Therefore, we performed this meta-analysis to evaluate prognostic values of miR-181a and miR-181b in CRC patients. MATERIALS & METHODS: Studies were systemically searched from publications and analyzed, and 999 CRC cases in nine studies were examined in this meta-analysis...
August 25, 2017: Biomarkers in Medicine
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