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MiR-146a gene

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https://www.readbyqxmd.com/read/29329380/circulating-micrornas-as-potential-biomarkers-of-disease-activity-and-structural-damage-in-ankylosing-spondylitis-patients
#1
Carlos Perez-Sanchez, Pilar Font-Ugalde, Patricia Ruiz-Limon, Chary Lopez-Pedrera, Maria C Castro-Villegas, Maria C Abalos-Aguilera, Nuria Barbarroja, Ivan Arias-de la Rosa, Maria D Lopez-Montilla, Alejandro Escudero-Contreras, Clementina Lopez-Medina, Eduardo Collantes-Estevez, Yolanda Jimenez-Gomez
Ankylosing spondylitis (AS) remains difficult to diagnose before irreversible damage to sacroiliac joint is noticeable. Circulating microRNAs have demonstrated to serve as diagnostic tools for several human diseases. Here, we analyzed plasma microRNAs to identify potential AS biomarkers. Higher expression levels of microRNA (miR)-146a-5p, miR-125a-5p, miR-151-3p, and miR-22-3p, and lower of miR-150-5p, and miR-451a were found in AS versus healthy donors. Interestingly, higher miR-146a-5p, miR-125a-5p, miR-151-3p, miR-22-3p, and miR-451a expression was also observed in AS than psoriatic arthritis patients...
January 10, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29302779/glia-to-neuron-transfer-of-mirnas-via-extracellular-vesicles-a-new-mechanism-underlying-inflammation-induced-synaptic-alterations
#2
Ilaria Prada, Martina Gabrielli, Elena Turola, Alessia Iorio, Giulia D'Arrigo, Roberta Parolisi, Mariacristina De Luca, Marco Pacifici, Mattia Bastoni, Marta Lombardi, Giuseppe Legname, Dan Cojoc, Annalisa Buffo, Roberto Furlan, Francesca Peruzzi, Claudia Verderio
Recent evidence indicates synaptic dysfunction as an early mechanism affected in neuroinflammatory diseases, such as multiple sclerosis, which are characterized by chronic microglia activation. However, the mode(s) of action of reactive microglia in causing synaptic defects are not fully understood. In this study, we show that inflammatory microglia produce extracellular vesicles (EVs) which are enriched in a set of miRNAs that regulate the expression of key synaptic proteins. Among them, miR-146a-5p, a microglia-specific miRNA not present in hippocampal neurons, controls the expression of presynaptic synaptotagmin1 (Syt1) and postsynaptic neuroligin1 (Nlg1), an adhesion protein which play a crucial role in dendritic spine formation and synaptic stability...
January 4, 2018: Acta Neuropathologica
https://www.readbyqxmd.com/read/29300789/mycobacterium-tuberculosis-induced-mir-155-subverts-autophagy-by-targeting-atg3-in-human-dendritic-cells
#3
Marilena P Etna, Alessandro Sinigaglia, Angela Grassi, Elena Giacomini, Alessandra Romagnoli, Manuela Pardini, Martina Severa, Melania Cruciani, Fabiana Rizzo, Eleni Ananstasiadou, Barbara Di Camillo, Luisa Barzon, Gian Maria Fimia, Riccardo Manganelli, Eliana M Coccia
Autophagy is a primordial eukaryotic pathway, which provides the immune system with multiple mechanisms for the elimination of invading pathogens including Mycobacterium tuberculosis (Mtb). As a consequence, Mtb has evolved different strategies to hijack the autophagy process. Given the crucial role of human primary dendritic cells (DC) in host immunity control, we characterized Mtb-DC interplay by studying the contribution of cellular microRNAs (miRNAs) in the post-transcriptional regulation of autophagy related genes...
January 4, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29216791/the-associations-of-two-snps-in-mirna-146a-and-one-snp-in-zbtb38-rasa2-with-the-disease-susceptibility-and-the-clinical-features-of-the-chinese-patients-of-scjd-and-ffi
#4
Chen Gao, Qiang Shi, Jing Wei, Wei Zhou, Kang Xiao, Jing Wang, Qi Shi, Xiao-Ping Dong
Prion diseases are a group of fatal neurodegenerative disorders that affect humans and animals. Besides of the pathological agent, prion, there are some elements that can influence or determine susceptibility to prion infection and the clinical phenotype of the diseases, e.g., the polymorphism in PRNP gene. Another polymorphism in ZBTB38-RASA2 has been observed to be associated with the susceptibility of sporadic Creutzfeldt-Jacob disease (sCJD) in UK. MicroRNAs are endogenous small noncoding RNAs that control gene expression by targeting mRNAs and triggering either translation repression or RNA degradation...
December 8, 2017: Prion
https://www.readbyqxmd.com/read/29191214/the-role-of-aberrant-expression-of-t-cell-mirnas-affected-by-tnf-%C3%AE-in-the-immunopathogenesis-of-rheumatoid-arthritis
#5
Ning-Sheng Lai, Hui-Chun Yu, Chien-Hsueh Tung, Kuang-Yung Huang, Hsien-Bin Huang, Ming-Chi Lu
BACKGROUND: Tumor necrosis factor-alpha (TNF-α) can cause diverse T cell dysfunctions in patients with rheumatoid arthritis (RA). It is involved in the regulation of microRNAs (miRNAs) expression in different cell types. We hypothesized that the expression of T cell miRNAs would be affected by TNF-α, and these miRNAs could participate in the immunopathogenesis of RA. METHODS: Expression profiles of 270 human miRNAs in Jurkat cells, cultured in the presence or absence of TNF-α for 7 days were analyzed by real-time polymerase chain reaction...
December 1, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29190882/functional-polymorphisms-in-pre-mir146a-and-pre-mir499-are-associated-with-systemic-lupus-erythematosus-but-not-with-rheumatoid-arthritis-or-graves-disease-in-mexican-patients
#6
Isidro Alemán-Ávila, Mayra Jiménez-Morales, Olga Beltrán-Ramírez, Rosa Elda Barbosa-Cobos, Silvia Jiménez-Morales, Fausto Sánchez-Muñoz, Guillermo Valencia-Pacheco, Luis M Amezcua-Guerra, Yaneli Juárez-Vicuña, Dulce Milagro Razo-Blanco Hernández, María Concepción Aguilera-Cartas, Ricardo F López-Villanueva, Oscar Peralta-Zaragoza, Carlos Tovilla-Zárate, Julian Ramírez-Bello
Recently, different microRNA (miRNA) gene polymorphisms have been evaluated in patients with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), and Graves' disease (GD). In the present study, we examined three single-nucleotide polymorphisms (SNPs) located in the pre-miR-146a (rs2910164G/C), pre-miR-196a-2 (rs11614913C/T), and pre-miR-499 (rs3746444A/G) genes. Our study population included 900 Mexican patients with RA, SLE, or GD, as well as 486 healthy control individuals with no family history of inflammatory or autoimmune diseases...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137139/deduction-of-novel-genes-potentially-involved-in-osteoblasts-of-rheumatoid-arthritis-using-next-generation-sequencing-and-bioinformatic-approaches
#7
Yi-Jen Chen, Wei-An Chang, Ya-Ling Hsu, Chia-Hsin Chen, Po-Lin Kuo
The role of osteoblasts in peri-articular bone loss and bone erosion in rheumatoid arthritis (RA) has gained much attention, and microRNAs are hypothesized to play critical roles in the regulation of osteoblast function in RA. The aim of this study is to explore novel microRNAs differentially expressed in RA osteoblasts and to identify genes potentially involved in the dysregulated bone homeostasis in RA. RNAs were extracted from cultured normal and RA osteoblasts for sequencing. Using the next generation sequencing and bioinformatics approaches, we identified 35 differentially expressed microRNAs and 13 differentially expressed genes with potential microRNA-mRNA interactions in RA osteoblasts...
November 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29133238/mir-146a-targets-c-met-and-abolishes-colorectal-cancer-liver-metastasis
#8
Anne-Marie Bleau, Miriam Redrado, Estanislao Nistal-Villan, Maria Villalba, Francisco Exposito, Esther Redin, Arrate L de Aberasturi, Leyre Larzabal, Javier Freire, Javier Gomez-Roman, Alfonso Calvo
A major complication of colorectal cancer (CRC), one of the most frequent and deadly types of cancer, is disease progression via liver metastases. At this stage, very few treatment options are available for patients, and the disease remains incurable. Herein, we used a well-established mouse model of CRC liver metastasis (CLM) to identify new regulators of this process. Using serial transplantation of murine MC38 adenocarcinoma cells, we obtained liver metastatic variants that displayed extremely strong colonization abilities...
November 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/29128203/study-of-correlation-between-genetic-variants-in-three-microrna-genes-hsa-mir-146a-hsa-mir-502-binding-site-hsa-mir-27a-and-breast-cancer-risk
#9
S Parchami Barjui, S Reiisi, S O Ebrahimi, B Shekari
BACKGROUND AND AIM: MicroRNAs (miRNAs) represent noncoding RNAs that play a role in the gene regulation of oncogenes and tumor suppressors. Single nucleotide polymorphisms (SNPs) in miRNA genes are associated with risk of cancer. Some of these SNPs are more common including rs2910164 in the miR-146a, rs895819 in the miR-27a, and rs2910164 in the miR-502 binding site of the SET8. Our aim was to investigate the association between these polymorphisms and the risk of breast cancer in an Iranian population...
November 8, 2017: Current Research in Translational Medicine
https://www.readbyqxmd.com/read/29127522/common-genetic-variation-within-mir-146a-predicts-disease-onset-and-relapse-in-multiple-sclerosis
#10
Yuan Zhou, Ming Chen, Steve Simpson, Robyn M Lucas, Jac C Charlesworth, Nicholas Blackburn, Ingrid van der Mei, Anne-Louise Ponsonby, Bruce V Taylor
Despite extensive studies focusing on the changes in expression of microRNAs (miRNAs) in multiple sclerosis (MS) compared to healthy controls, few studies have evaluated the association of genetic variants of miRNAs with MS clinical course. We investigated whether a functional polymorphism in the MS associated miR-146a gene predicted clinical course (hazard of conversion to MS and of relapse, and annualized change in disability), using a longitudinal cohort study of persons with a first demyelinating event followed up to their 5-year review...
November 10, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29126434/whole-blood-microrna-expression-pattern-differentiates-patients-with-rheumatoid-arthritis-their-seropositive-first-degree-relatives-and-healthy-unrelated-control-subjects
#11
Vidyanand Anaparti, Irene Smolik, Xiaobo Meng, Victor Spicer, Neeloffer Mookherjee, Hani El-Gabalawy
BACKGROUND: Epigenetic mechanisms can integrate gene-environment interactions that mediate disease transition from preclinical to clinically overt rheumatoid arthritis (RA). To better understand their role, we evaluated microRNA (miRNA, miR) expression profile in indigenous North American patients with RA who were positive for anticitrullinated protein antibodies; their autoantibody-positive, asymptomatic first-degree relatives (FDRs); and disease-free healthy control subjects (HCs). METHODS: Total RNA was isolated from whole blood samples obtained from HC (n = 12), patients with RA (n = 18), and FDRs (n = 12)...
November 10, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29123165/deep-sequencing-and-analyses-of-mirnas-isomirs-and-mirna-induced-silencing-complex-mirisc-associated-mirnome-in-primary-human-chondrocytes
#12
Abdul Haseeb, Mohammad Shahidul Makki, Nazir M Khan, Imran Ahmad, Tariq M Haqqi
MicroRNAs, a group of small, noncoding RNAs that post-transcriptionally regulate gene expression, play important roles in chondrocyte function and in the development of osteoarthritis. We characterized the dynamic repertoire of the chondrocyte miRNome and miRISC-associated miRNome by deep sequencing analysis of primary human chondrocytes. IL-1β treatment showed a modest effect on the expression profile of miRNAs in normal and osteoarthritis (OA) chondrocytes. We found a number of miRNAs that showed a wide range of sequence modifications including nucleotide additions and deletions at 5' and 3' ends; and nucleotide substitutions...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29122314/blood-transcriptional-and-microrna-responses-to-short-term-exposure-to-disinfection-by-products-in-a-swimming-pool
#13
Almudena Espín-Pérez, Laia Font-Ribera, Karin van Veldhoven, Julian Krauskopf, Lutzen Portengen, Marc Chadeau-Hyam, Roel Vermeulen, Joan O Grimalt, Cristina M Villanueva, Paolo Vineis, Manolis Kogevinas, Jos C Kleinjans, Theo M de Kok
BACKGROUND: Swimming in a chlorinated pool results in high exposure levels to disinfection by-products (DBPs), which have been associated with an increased risk of bladder cancer. OBJECTIVES: By studying molecular responses at the blood transcriptome level we examined the biological processes associated with exposure to these compounds. METHODS: Whole-genome gene expression and microRNA analysis was performed on blood samples collected from 43 volunteers before and 2h after 40min swimming in an indoor chlorinated pool (PISCINAII study)...
January 2018: Environment International
https://www.readbyqxmd.com/read/29113388/association-of-mir-146a-mir-149-mir-196a2-mir-499-gene-polymorphisms-with-ischemic-stroke-in-a-chinese-people
#14
Hong-Cheng Luo, Qi-Sheng Luo, Chun-Fang Wang, Ming Lei, Bei-Lin Li, Ye-Sheng Wei
This study aimed to investigate genetic polymorphisms of miR-146a, miR-149, miR-196a2, and miR-499 and genetic susceptibility of ischemic stroke in the population of Guangxi in China. A case-control study was used to investigate miRNAs genetic polymorphisms in 298 patients with ischemic stroke and 303 healthy controls. Single-base extension polymerase chain reaction genotyping principle was used to detect genetic polymorphisms of miRNAs,and the relationship of genotype in each group and blood lipid was compared and analyzed...
October 6, 2017: Oncotarget
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...
November 3, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29074132/microrna-146a-promotes-red-spotted-grouper-nervous-necrosis-virus-rgnnv-replication-by-targeting-traf6-in-orange-spotted-grouper-epinephelus-coioides
#16
Songwei Ni, Yepin Yu, Jingguang Wei, Lingli Zhou, Shina Wei, Yang Yan, Xiaohong Huang, Youhua Huang, Qiwei Qin
MicroRNA-146a (miR-146a) has been demonstrated to function as a negative regulator of cellular immune responses against pathogens in mammals, however, little information focused on its functions in lower vertebrates. In this study, we investigated the regulatory roles of orange spotted grouper, Epinephelus coioides miR-146a during red spotted grouper nervous necrosis virus (RGNNV) infection. During RGNNV infection in grouper spleen (GS) cells, the endogenous expression level of miR-146a and tumor necrosis factor receptor-associated factor 6 (TRAF6) significantly increased along with the infection time...
October 24, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29070573/mir-34c-5p-and-camkii-are-involved-in-aldosterone-induced-fibrosis-in-kidney-collecting-duct-cells
#17
Eui-Jung Park, Hyun Jun Jung, Hyo-Jung Choi, Jeong-In Cho, Hye-Jeong Park, Tae-Hwan Kwon
Mineralocorticoids trigger a pro-fibrotic process in kidney. In mouse cortical collecting duct cells (mpkCCDc14 cells), the present study addressed two main questions: 1) what are miRNAs and their target genes changed by aldosterone? and 2) what do miRNAs in response to aldosterone regulate signaling pathways related to fibrosis? Microarray chip assay was done in cells in the absence or presence of aldosterone treatment (10(-6)M, 3 d). The candidate miRNAs were identified by the criteria of more than 30% of fold-change among the significantly changed miRNAs (P value < 0...
October 25, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29058209/the-rs2910164-variant-is-associated-with-reduced-mir-146a-expression-but-not-cytokine-levels-in-patients-with-type-2-diabetes
#18
B Alipoor, H Ghaedi, R Meshkani, M D Omrani, Z Sharifi, T Golmohammadi
PURPOSE: Previous reports have demonstrated that genetic variations in microRNAs regulome could affect microRNAs-mediated regulation. Therefore, in the present study we were aimed at (1) comparison of microRNA 146-a (miR-146a) peripheral blood mononuclear cells (PBMCs) and plasma levels between diabetic patients and controls, and (2) investigating the possible association of rs2910164 with miR-146a and its related target genes expression and also serum cytokine levels. METHODS: The study population consisted of 60 subjects including 30 type 2 diabetes (T2D) patients and 30 controls with determined genotypes for rs2910164...
October 22, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29038477/long-non-coding-hcg18-promotes-intervertebral-disc-degeneration-by-sponging-mir-146a-5p-and-regulating-traf6-expression
#19
Yanhai Xi, Tingwang Jiang, Weiheng Wang, Jiangming Yu, Yang Wang, Xueming Wu, Yunfei He
Intervertebral disc degeneration (IDD) is associated with the deterioration of nucleus pulposus (NP) cells due to hypertrophic differentiation and calcification. Emerging studies have shown that long noncoding RNAs (lncRNAs) play critical roles in the development of IDD. Using bioinformatics prediction, we hereby sought to identify the lncRNAs that regulate the expression of microRNA-146a-5p (miR-146a-5p), an IDD-related inflammatory factor. Our study demonstrated that lncRNA HCG18 acted as an endogenous sponge to down-regulate miR-146a-5p expression in the NP cells by directly binding to miR-146a-5p...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29037553/association-of-mir-146a-rs2910164-and-mir-222-rs2858060-polymorphisms-with-the-risk-of-polycystic-ovary-syndrome-in-iranian-women-a-case-control-study
#20
Amir Hossein Hosseini, Leila Kohan, Azita Aledavood, Sara Rostami
OBJECTIVE: Today, many single nucleotide polymorphisms in microRNA genes are known to alter the microRNA expression levels or processing causing susceptibility of several human diseases. The present study aimed to investigate the association of microRNA-146a (rs2910164) and microRNA-222 (rs2858060) polymorphisms with susceptibility to polycystic ovary syndrome (PCOS) in an Iranian population. MATERIALS AND METHODS: This case-control study was performed on 205 patients with PCOS and 205 normal women as the control group...
October 2017: Taiwanese Journal of Obstetrics & Gynecology
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