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MiR-146

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https://www.readbyqxmd.com/read/29657293/mir-146-and-mir-155-two-key-modulators-of-immune-response-and-tumor-development
#1
REVIEW
Ugo Testa, Elvira Pelosi, Germana Castelli, Catherine Labbaye
MicroRNAs (miRNAs or miRs) are a class of evolutionarily-conserved small, regulatory non-coding RNAs, 19-3 nucleotides in length, that negatively regulate protein coding gene transcripts' expression. miR-146 (146a and 146b) and miR-155 are among the first and most studied miRs for their multiple roles in the control of the innate and adaptive immune processes and for their deregulation and oncogenic role in some tumors. In the present review, we have focused on the recent acquisitions about the key role played by miR-146a, miR-146b and miR-155 in the control of the immune system and in myeloid tumorigenesis...
June 26, 2017: Non-Coding RNA
https://www.readbyqxmd.com/read/29601548/roles-of-nf-%C3%AE%C2%BAb-signaling-in-the-regulation-of-mirnas-impacting-on-inflammation-in-cancer
#2
REVIEW
Georgios S Markopoulos, Eugenia Roupakia, Maria Tokamani, Georgia Alabasi, Raphael Sandaltzopoulos, Kenneth B Marcu, Evangelos Kolettas
The NF-κB family of transcription factors regulate the expression of genes encoding proteins and microRNAs (miRNA, miR) precursors that may either positively or negatively regulate a variety of biological processes such as cell cycle progression, cell survival, and cell differentiation. The NF-κB-miRNA transcriptional regulatory network has been implicated in the regulation of proinflammatory, immune, and stress-like responses. Gene regulation by miRNAs has emerged as an additional epigenetic mechanism at the post-transcriptional level...
March 30, 2018: Biomedicines
https://www.readbyqxmd.com/read/29560749/targeted-delivery-of-microrna-146b-mimic-to-hepatocytes-by-lactosylated-pdmaema-nanoparticles-for-the-treatment-of-nafld
#3
Shuying He, Weihong Guo, Feihong Deng, Kequan Chen, Yonghong Jiang, Minyu Dong, Liang Peng, Xueqing Chen
Non-alcoholic fatty liver disease (NAFLD) is one of the most common chronic liver diseases worldwide, and precision therapeutic will be a benefit for the NAFLD regression. In this study, we observed low microRNA 146 b (miR-146 b) expression in NAFLD mice model induced by methionine-choline-deficient diet (MCD) compared with control group. Furthermore, miR-146b-/- mice induced MCD exhibited severe liver steatosis and hepatitis. A bio-distribution study showed that novel Lactosylated PDMAEMA nanoparticles effectively targeted hepatocytes Lac-PDMAEMA...
March 21, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29556219/integrated-lung-and-tracheal-mrna-seq-and-mirna-seq-analysis-of-dogs-with-an-avian-like-h5n1-canine-influenza-virus-infection
#4
Cheng Fu, Jie Luo, Shaotang Ye, Ziguo Yuan, Shoujun Li
Avian-like H5N1 canine influenza virus (CIV) causes severe respiratory infections in dogs. However, the mechanism underlying H5N1 CIV infection in dogs is unknown. The present study aimed to identify differentially expressed miRNAs and mRNAs in the lungs and trachea in H5N1 CIV-infected dogs through a next-generation sequencing-based method. Eighteen 40-day-old beagles were inoculated intranasally with CIV, A/canine/01/Guangdong/2013 (H5N1) at a tissue culture infectious dose 50 (TCID50 ) of 106 , and lung and tracheal tissues were harvested at 3 and 7 d post-inoculation...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29544526/mice-with-mir-146a-deficiency-develop-severe-gouty-arthritis-via-dysregulation-of-traf-6-irak-1-and-nalp3-inflammasome
#5
Quan-Bo Zhang, Yu-Feng Qing, Cong-Cong Yin, Li Zhou, Xian-Shuang Liu, Qing-Sheng Mi, Jing-Guo Zhou
BACKGROUND: MicroRNAs (miRNAs) serve as important regulators of inflammatory and immune responses and are implicated in several immune disorders including gouty arthritis. The expression of miR-146a is upregulated in the peripheral blood mononuclear cells of patients with inter-critical gout when compared to normouricemic and hyperuricemic controls and those patients with acute gout flares. However, the role of miR-146a in the development of gout remains unknown. Here, we used miR-146a knockout (KO) mice to test miR-146a function in a monosodium urate (MSU)-induced gouty arthritis model...
March 15, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29467760/microrna-regulation-of-host-immune-responses-following-fungal-exposure
#6
REVIEW
Tara L Croston, Angela R Lemons, Donald H Beezhold, Brett J Green
Fungal bioaerosols are ubiquitous in the environment and human exposure can result in a variety of health effects ranging from systemic, subcutaneous, and cutaneous infections to respiratory morbidity including allergy, asthma, and hypersensitivity pneumonitis. Recent research has focused on the role of microRNAs (miRNAs) following fungal exposure and is overlooked, yet important, group of regulators capable of influencing fungal immune responses through a variety of cellular mechanisms. These small non-coding ribose nucleic acids function to regulate gene expression at the post-transcriptional level and have been shown to participate in multiple disease pathways including cancer, heart disease, apoptosis, as well as immune responses to microbial hazards and occupational allergens...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29442046/microrna-146-regulates-the-inflammatory-cytokines-expression-in-vascular-endothelial-cells-during-sepsis
#7
Ning Gao, Lei Dong
AIMS: The purpose of this study was to investigate the functional role of microRNA (miR)-146 in sepsis, as well as the underlying mechanism. METHODS: Human vascular endothelial cell line EA. hy926 cells were treated with lipopolysaccharide (LPS) and/or transfected with miR-146 mimics, inhibitor, and their corresponding controls. Expression of miR-146 was then analyzed after treatment and/or transfection, as well as the expression of inflammatory cytokines, including tumor necrosis factor (TNF)-α, interleukin (IL)-6, intercellular adhesion molecule (ICAM)-1, and E-selectin, and nuclear factor kappa B (NF-κB) binding activity...
November 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29441948/regulation-and-mechanism-of-mir-146-on-renal-ischemia-reperfusion-injury
#8
Yuyu Huang, Hongwu Wang, Yanhui Wang, Xiaohui Peng, Jing Li, Wenlong Gu, Ting He, Minjun Chen
AIM: MicroRNAs (miRs) are endogenous substances that act as important diagnostic and treatment targets in renal diseases. miR-146 plays an important role in the development of endotoxin tolerance through NF-κB pathway, but the underlying mechanism is not clearly understood. The aim of this study was to determine the molecular regulation and function of miR-146 and also the expression of miR-146 in an experimental model of renal ischemia reperfusion injury (IRI). METHODS: IRI was induced in mouse by bilateral IRI for 45 min followed by reperfusion...
January 2, 2018: Die Pharmazie
https://www.readbyqxmd.com/read/29245929/harnessing-the-heart-s-resistance-to-malignant-tumors-cardiac-derived-extracellular-vesicles-decrease-fibrosarcoma-growth-and-leukemia-related-mortality-in-rodents
#9
Lilian Grigorian-Shamagian, Soraya Fereydooni, Weixin Liu, Antonio Echavez, Eduardo Marbán
The heart is known for its resistance to cancer. Although different conjectures have been proposed to explain this phenomenon, none has been tested. We propose that the heart microenvironment may exert anti-cancer properties. So, our objective was to test the anti-oncogenic potential of cardiac-derived extracellular vesicles (EVs). For that EVs secreted by cardiosphere-derived cells (CDCs, heart progenitor cells) were tested in vitro on fibrosarcoma HT1080. In vivo models comprised the xenograft HT1080 fibrosarcoma in athymic mice (n=35), and spontaneous acute lymphocyte leukemia in old rats (n=44)...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29229881/microrna-146-protects-a549-and-h1975-cells-from-lps-induced-apoptosis-and-inflammation-injury
#10
Qiang Wang, Dagang Li, Yuquan Han, Xiaoqian Ding, Tao Xu, Bingjian Tang
Pneumonia is an inflammatory condition affecting the lungs, in which pro-inflammatory cytokines are secreted. It has been shown that microRNA-146 (miR-146) is involved in the regulation of immune and inflammatory responses. The present study explored the protective effects of miR-146 overexpression on lipopolysaccharide (LPS)-mediated injury in A549 and H1975 cells. In this study, A549 and H1975 cells were transfected with miR-146 mimic or inhibitor, and then were subjected with LPS. Thereafter, cell viability, colony formation capacity, apoptosis, the release of proinflammatory factors, Sirt1 expression, and the expression of NF-κB and Notch pathway proteins were respectively assessed...
December 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/29172404/small-rna-sequencing-profiles-of-mir-181-and-mir-221-the-most-relevant-micrornas-in-acute-myeloid-leukemia
#11
Yun-Gyoo Lee, Inho Kim, Somi Oh, Dong-Yeop Shin, Youngil Koh, Keun-Wook Lee
Background/Aims: To evaluate and select microRNAs relevant to acute myeloid leukemia (AML) pathogenesis, we analyzed differential microRNA expression by quantitative small RNA next-generation sequencing using duplicate marrow samples from individual AML patients. Methods: For this study, we obtained paired marrow samples at two different time points (initial diagnosis and first complete remission status) in patients with AML. Bone marrow microRNAs were profiled by next-generation small RNA sequencing...
November 27, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29163428/hhv-6a-6b-infection-of-nk-cells-modulates-the-expression-of-mirnas-and-transcription-factors-potentially-associated-to-impaired-nk-activity
#12
Roberta Rizzo, Irene Soffritti, Maria D'Accolti, Daria Bortolotti, Dario Di Luca, Elisabetta Caselli
Natural killer (NK) cells have a critical role in controlling virus infections, and viruses have evolved several mechanisms to escape NK cell functions. In particular, Human herpesvirus 6 (HHV-6) is associated with diseases characterized by immune dysregulation and has been reported to infect NK cells. We recently found that HHV-6 in vitro infection of human thyroid follicular epithelial cells and T-lymphocytes modulates several miRNAs associated with alterations in immune response. Since miRNAs are key regulators of many immune pathways, including NK cell functions, we aimed to study the impact of HHV-6A and -6B in vitro infection on the intracellular mediators correlated to NK cell function...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29152405/association-of-mir-146-rs2910164-mir-196a-rs11614913-mir-221-rs113054794-and-mir-224-rs188519172-polymorphisms-with-anti-tnf-treatment-response-in-a-greek-population-with-crohn-s-disease
#13
Ioannis Papaconstantinou, Christina Kapizioni, Evangelia Legaki, Elena Xourgia, George Karamanolis, Antonios Gklavas, Maria Gazouli
AIM: To investigate the correlation between rs2910164, rs11 614913, rs113054794, and rs188519172 polymorphisms and response to anti-TNF treatment in patients with Crohn's disease (CD). METHODS: One hundred seven patients with CD based on standard clinical, endoscopic, radiological, and pathological criteria were included in the study. They all received infliximab or adalimumab intravenously or subcutaneously at standard induction doses as per international guidelines...
November 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29127520/association-between-mir-146a-rs2910164-polymorphism-and-specific-cancer-susceptibility-an-updated-meta-analysis
#14
REVIEW
Xia Hao, Lingzi Xia, Ruoyi Qu, Xianglin Yang, Min Jiang, Baosen Zhou
The rapidly increasing of cancer risk nationwide and worldwide has threatened human health and caused the changes of disease and death spectrum. MicroRNA (MiRNA) as cancer biomarker on susceptibility has enjoyed a high level of concern. This article will discuss the association between miR-146 rs2910164 polymorphism and cancer susceptibility in 38 independent case-control studies from 34905 individuals. The 38 case-control studies which were searched from PubMed were used for conducting a meta-analysis. There were 14670 cases and 20235 controls...
November 10, 2017: Familial Cancer
https://www.readbyqxmd.com/read/29107863/elevated-expression-of-mir-146-mir-139-and-mir-340-involved-in-regulating-th1-th2-balance-with-acute-exposure-of-fine-particulate-matter-in-mice
#15
Tianfang Hou, Jiping Liao, Cheng Zhang, Chao Sun, Xueying Li, Guangfa Wang
Airborne fine particulate matter (PM2.5) is detrimental to human health, and frequently leads to a variety of lung diseases. Recently, IARC conclude that particulate matter is carcinogenic to humans (level one). However, the pulmonary toxicological mechanism induced by PM2.5 remains obscure. Our previous studies confirmed that PM2.5 hurt the human immune system by means of causing the imbalance of Th1/Th2 lymphocytes. MicroRNAs (miRNAs) are post-transcriptional gene suppressors and potential mediators of environmental effects, which play an important role in the regulation of CD4+ T lymphocyte differentiation...
January 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29064609/the-micronome-of-mesenchymal-stromal-cells-is-partially-responsive-to-inflammation
#16
Hussein Fayyad-Kazan, Mohammad Fayyad-Kazan, Makram Merimi, Nathalie Meuleman, Dominique Bron, Laurence Lagneaux, Mehdi Najar
Mesenchymal stromal cells (MSCs) display a special immunological profile that allows their potential use as immunotherapeutic cells. Nowadays, foreskin (FSK) represents a valuable reservoir of MSCs with International Society for Cellular Therapy (ISCT) compliant criteria and relevant functional properties. However, their mode of action is poorly understood and needs to be more elucidated to optimize their therapeutic use. Because microRNAs (miRNAs) act as key regulators in a wide variety of biological processes, we decided to establish the micronome of FSK-MSCs, the influence of inflammation and the predicted target pathways...
February 2018: Cell Biology International
https://www.readbyqxmd.com/read/28950676/association-between-microrna-146a-and-microrna-196a2-genes-polymorphism-and-breast-cancer-risk-in-north-indian-women
#17
Vijay Kumar Bodal, Shruti Sangwan, Manjit Singh Bal, Mohanvir Kaur, Sidarth Sharma, Bhavleen Kaur
Background: Micro RNAs (miRNAs) are small, noncoding RNA molecules. They can function as either oncogenes or tumor suppressor genes. Single nucleotide polymorphisms (SNP) present in the pre-miRNA region could affect the processing of miRNA and thus alter mature miRNA expression. The studies done so far had shown conflicting results regarding association of two common polymorphisms i.e.hsa-miR-146 rs2910164 and hsa-miR-196a2 rs11614913 with breast cancer. OBJECTIVE: In the study, we examined the hsa-miR-146 rs2910164 and hsa-miR-196a2 rs11614913 SNP association with breast cancer patients in north Indian women...
September 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28901447/microrna%C3%A2-146a-promotes-the-proliferation-of-rat-vascular-smooth-muscle-cells-by-downregulating-p53-signaling
#18
Yu Luo, Wei Xiong, Shaohong Dong, Feng Liu, Huadong Liu, Jianghua Li
The present study aimed to detect and verify gene expression profile differences for microRNA (miR)‑146a and its role in the proliferation of vascular smooth muscle cells (VSMCs). Artificially synthesized miR‑146a mimics, miR‑146 inhibitor, scramble‑miRNA or PBS was transfected into cultured primary rat VSMCs in vitro. Reverse transcription‑quantitative polymerase chain reaction confirmed that the miR‑146a expression level was significantly decreased in VSMCs treated with miR‑146a inhibitor (P<0...
November 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28820886/circulating-mirnas-in-sepsis-a-network-under-attack-an-in-silico-prediction-of-the-potential-existence-of-mirna-sponges-in-sepsis
#19
Catalin Vasilescu, Mihnea Dragomir, Mihai Tanase, Dana Giza, Raluca Purnichescu-Purtan, Meng Chen, Sai-Ching Jim Yeung, George A Calin
Biomarkers based on the molecular mechanism of sepsis are important for timely diagnosis and treatment. A large panel of small non-coding microRNAs was reported to modulate the immune response in sepsis but have not been tested in clinical practice. Large-scale identification of microRNA networks in sepsis might reveal a new biological mechanism that can be also targeted by gene therapy. Therefore, the main objective of this study is to perform a comparison of the miRNA network between septic patients and healthy controls...
2017: PloS One
https://www.readbyqxmd.com/read/28560455/microrna%C3%A2-146a%C3%A2-5p-enhances-cisplatin%C3%A2-induced-apoptosis-in-ovarian-cancer-cells-by-targeting-multiple-anti%C3%A2-apoptotic-genes
#20
Xiaodi Li, Yuhao Jin, Zekun Mu, Wei Chen, Songshan Jiang
MicroRNAs play a crucial role in gene expression regulation in various types of cancers. Previous studies show the expression level of miR‑146a‑5p is downregulated in epithelial ovarian cancer. Further investigations suggest this downregulation is responsible for apoptosis resistance in ovarian cancer cells. However, the mechanism of how miR‑146a‑5p promotes apoptosis remains unclear. In this study, the role of miR‑146a‑5p in cisplatin‑induced apoptosis of ovarian cancer cells was assessed by DAPI staining, MTT assays, and monitoring expression of XIAP, BCL2L2, BIRC2 and BIRC5 through a dual‑luciferase assay...
May 29, 2017: International Journal of Oncology
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