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MiRNA 27a

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https://www.readbyqxmd.com/read/28086811/study-of-the-microrna-expression-profile-of-foreskin-derived-mesenchymal-stromal-cells-following-inflammation-priming
#1
Hussein Fayyad-Kazan, Mohammad Fayyad-Kazan, Bassam Badran, Dominique Bron, Laurence Lagneaux, Mehdi Najar
BACKGROUND: Due to their self-renewal capacity, multi-lineage potential, and immunomodulatory properties, mesenchymal stromal cells (MSCs) are an attractive tool for different therapeutic strategies. Foreskin (FSK), considered as a biological waste material, has already been shown to be a valuable source of MSCs. Besides their typical fibroblast like morphology and International Society for cellular Therapy compliant phenotype, foreskin-MSCs (FSK-MSCs) are clonogenic, and highly proliferative cells with multi-lineage and strong immunomodulatory capacities...
January 13, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28002594/effects-of-mir-27a-upregulation-on-thyroid-cancer-cells-migration-invasion-and-angiogenesis
#2
Y L Wang, W G Gong, Q L Yuan
Thyroid cancer is the most common type of endocrine tumor. MicroRNAs (miRNAs) play a critical role in a variety of diseases, especially cancer occurrence and progression. However, the specific mechanism by which miRNAs trigger disease states has not been fully elucidated. This study aims to investigate the role of miR-27a in thyroid cancer cells. A wound healing assay was adopted to examine cell migration. A transwell assay was applied to assess cell invasion. A thyroid cancer xenograft model was established using BALB/c nude mice...
December 19, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27981970/time-series-mirna-mrna-integrated-analysis-reveals-critical-mirnas-and-targets-in-macrophage-polarization
#3
Liangqun Lu, Sara McCurdy, Sijia Huang, Xun Zhu, Karolina Peplowska, Maarit Tiirikainen, William A Boisvert, Lana X Garmire
Polarization of macrophages is regulated through complex signaling networks. Correlating miRNA and mRNA expression over time after macrophage polarization has not yet been investigated. We used paired RNA-Seq and miRNA-Seq experiments to measure the mRNA and miRNA expression in bone marrow-derived macrophages over a time-series of 8 hours. Bioinformatics analysis identified 31 differentially expressed miRNAs between M1 and M2 polarized macrophages. The top 4 M1 miRNAs (miR-155-3p, miR-155-5p, miR-147-3p and miR-9-5p) and top 4 M2 miRNAs (miR-27a-5p, let-7c-1-3p, miR-23a-5p and miR-23b-5p) were validated by qPCR...
December 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27919684/neuroprotective-effects-of-mir-27a-against-traumatic-brain-injury-via-suppressing-foxo3a-mediated-neuronal-autophagy
#4
Liqian Sun, Manman Zhao, Yan Wang, Aihua Liu, Ming Lv, Youxiang Li, Xinjian Yang, Zhongxue Wu
MicroRNA-27a (miR-27a) has been reported to be a brain-specific miRNA and aberrantly expressed in the brain suffered from traumatic brain injury (TBI). The present study is designed to investigate the potential role and molecular mechanism of miR-27a in the pathogenesis of TBI. The level of miR-27a in brain was manipulated by intracerebroventricular injection of lentiviral-encoding miR-27a before TBI induction. Real-time PCR was used to detected miR-27a and Forkhead box O3a (FoxO3a) levels in the hippocampus...
January 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27919232/microrna-27a-rs895819-is-associated-with-obesity-in-hiv-infected-preeclamptic-black-south-african-women-on-haart
#5
Niren Ray Maharaj, Prithiksha Ramkaran, Siddharthiya Pillay, Anil Amichund Chuturgoon
BACKGROUND: Preeclampsia (PE) and HIV/AIDS present a major health challenge globally. South Africa has the highest disease burden of both HIV/AIDS and PE in the world. Despite extensive research, the pathophysiology of these conditions is not completely understood, however a genetic predisposition in women may affect susceptibility. MiRNA-27a regulates adipogenesis and glucose metabolism. A single nucleotide polymorphism (SNP) in miRNA-27a (rs895819T > C) has shown to have disparate effects in various populations...
December 5, 2016: BMC Medical Genetics
https://www.readbyqxmd.com/read/27910957/mir-27a-attenuates-adipogenesis-and-promotes-osteogenesis-in-steroid-induced-rat-bmscs-by-targeting-ppar%C3%AE-and-grem1
#6
Chenxi Gu, Yan Xu, Shanfeng Zhang, Hongya Guan, Shi Song, Xiuli Wang, Yisheng Wang, Yuebai Li, Guoqiang Zhao
The imbalance between adipogenic and osteogenic differentiation in bone marrow mesenchymal stem cells (BMSCs) plays a significant role in the pathogenesis of steroid-induced osteonecrosis of the femoral head (ONFH). Several microRNAs (miRNAs) are involved in regulating adipogenesis and osteogenesis. In this study, we established a steroid-induced ONFH rat model to identify the potential relevant miRNAs. We identified 9 up-regulated and 28 down-regulated miRNAs in the ONFH rat model. Of these, miR-27a was down-regulated and negatively correlated with peroxisome proliferator-activated receptor gamma (PPARγ) and gremlin 1 (GREM1) expression...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27873337/age-related-common-mirna-polymorphism-associated-with-severe-toxicity-in-lung-cancer-patients-treated-with-platinum-based-chemotherapy
#7
Chao Fang, Xiang-Ping Li, Wei-Jing Gong, Na-Yiyuan Wu, Jie Tang, Ji-Ye Yin, Xi Li, Wei Zhang, Hong-Hao Zhou, Zhao-Qian Liu
Platinum-based chemotherapy toxicity severely impedes successful treatment in lung cancer patients. MicroRNAs (miRs) have a significant impact on the occurrence and survival rate of lung cancer. The purpose of this study was to investigate the association between common miRNA variants and platinum-based chemotherapy toxicity in lung cancer patients. A total of 8 functional SNPs of miRNA were genotyped in 408 lung cancer patients by MALDI-TOF mass spectrometry. All the patients were histologically confirmed as lung cancer, and were treated with platinum-based chemotherapy for at least two cycles...
November 22, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27869909/altered-levels-of-circulating-cytokines-and-micrornas-in-lean-and-obese-individuals-with-prediabetes-and-type-2-diabetes
#8
Yury O Nunez Lopez, Gabriella Garufi, Attila A Seyhan
Today obesity and type 2 diabetes (T2D) have both reached epidemic proportions. However, our current understanding of the primary mechanisms leading to these diseases is still limited due to the complex multifactorial nature of the underlying phenomena. We hypothesize that the levels of specific cytokines and miRNAs vary across the diabetes spectrum and unique signatures associated with them may serve as early biomarkers of the disease and provide insights into respective pathogenetic mechanisms. In this study, we measured the circulating levels of cytokines and microRNAs (miRNAs) in lean and obese humans with prediabetes (n = 21), T2D (n = 17), and healthy controls (n = 20) (ORIGINS trial, NCT02226640)...
December 20, 2016: Molecular BioSystems
https://www.readbyqxmd.com/read/27790245/associations-of-mrna-microrna-for-the-shared-downstream-molecules-of-egfr-and-alternative-tyrosine-kinase-receptors-in-non-small-cell-lung-cancer
#9
Fengfeng Wang, Fei Meng, Lili Wang, S C Cesar Wong, William C S Cho, Lawrence W C Chan
Lung cancer is the top cancer killer worldwide with high mortality rate. Majority belong to non-small cell lung cancers (NSCLCs). The epidermal growth factor receptor (EGFR) has been broadly explored as a drug target for therapy. However, the drug responses are not durable due to the acquired resistance. MicroRNAs (miRNAs) are small non-coding and endogenous molecules that can inhibit mRNA translation initiation and degrade mRNAs. We wonder if some downstream molecules shared by EGFR and the other tyrosine kinase receptors (TKRs) further transduce the signals alternatively, and some miRNAs play the key roles in affecting the expression of these downstream molecules...
2016: Frontiers in Genetics
https://www.readbyqxmd.com/read/27779715/mir-27a-mediated-antiproliferative-effects-of-metformin-on-the-breast-cancer-cell-line-mcf-7
#10
Wei Zhao, Xiaohui Zhang, Jia Liu, Bei Sun, Hua Tang, Hong Zhang
Metformin was demonstrated to have effects on breast cancer, and microRNA-27a (miR-27a) is a prognostic marker for breast cancer progression and patient survival. AMPKα2 was found to be a suppressor in breast cancer MCF-7 cells. Therefore, the present study aimed to explain this phenomenon in regards to the relationship between microRNAs (miRNAs) and their target genes and to predict how AMPKα2 may be a downstream target gene of miR-27a, thus exploring the new mechanism of metformin in the treatment of breast cancer regarding miRNAs...
December 2016: Oncology Reports
https://www.readbyqxmd.com/read/27748875/microrna-expression-profiles-of-granulocytic-myeloid%C3%A2-derived-suppressor-cells-from-mice-bearing-lewis-lung-carcinoma
#11
Jingwei Jiang, Qingmin Gao, Tian Wang, Hao Lin, Qiong Zhan, Zhaohui Chu, Ruofan Huang, Xinli Zhou, Xiaohua Liang, Weijian Guo
Myeloid-derived suppressor cells (MDSCs) are a group of heterogeneous myeloid cells that can suppress antitumor immunity. MDSCs are divided into granulocytic (G‑MDSCs) and monocytic subsets. In the present study, the microRNA profiles of the G‑MDSCs were determined and the differential expression of microRNAs between G‑MDSCs from tumor‑bearing mice and tumor‑free mice was examined. The number of G‑MDSCs in spleens of Lewis lung carcinoma (LLC)‑bearing mice was ~6‑fold higher than in spleens of normal mice (13...
November 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27731343/microrna-based-diagnostic-tools-for-advanced-fibrosis-and-cirrhosis-in-patients-with-chronic-hepatitis-b-and-c
#12
Kevin Appourchaux, Safi Dokmak, Matthieu Resche-Rigon, Xavier Treton, Martine Lapalus, Charles-Henry Gattolliat, Emmanuelle Porchet, Michelle Martinot-Peignoux, Nathalie Boyer, Michel Vidaud, Pierre Bedossa, Patrick Marcellin, Ivan Bièche, Emilie Estrabaud, Tarik Asselah
Staging fibrosis is crucial for the prognosis and to determine the rapid need of treatment in patients with chronic hepatitis B (CHB) and C (CHC). The expression of 13 fibrosis-related microRNAs (miRNAs) (miR-20a, miR-21, miR-27a, miR-27b, miR-29a, miR-29c, miR-92a, miR-122, miR-146a, miR-155, miR-221, miR-222, and miR-224) was analyzed in 194 serums and 177 liver biopsies of patients with either CHB or CHC to develop models to diagnose advanced fibrosis and cirrhosis (Metavir F3-F4). In CHB patients, the model (serum miR-122, serum miR-222, platelet count and alkaline phosphatase) was more accurate than APRI and FIB-4 to discriminate in between mild and moderate fibrosis (F1-F2) and F3-F4 (AUC of CHB model: 0...
October 12, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27706637/microrna-variants-and-colorectal-cancer-risk-a-meta-analysis
#13
X M Pan, X Xiao, H J Qin, Z Zhang, Z H Li, L B Gao, J Jia
Colorectal cancer (CRC) is a multi-factorial disease, and genetic background may contribute to its etiology. Single nucleotide polymorphisms (SNPs) in microRNAs (miRNAs) may be used as specific markers of predisposition for CRC diagnosis and prevention. In this review, we summarize and discuss recent publications evaluating the roles of miRNA SNPs in CRC. A meta-analysis was also carried out to assess the association between the five most frequently studied miRNA SNPs and CRC risk. No relationship was established between this disease and the three SNPs rs11614913, rs2910164, and rs3746444 in miR-196a-2, miR-146a, and miR-499, respectively...
August 29, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27694792/effect-of-mirna-27a-and-leptin-polymorphisms-on-risk-of-recurrent-spontaneous-abortion
#14
Chun-Yan Wang, Shu-Guang Wang, Jia-Li Wang, Li-Ying Zhou, Hong-Jun Liu, Yi-Feng Wang
BACKGROUND The aim of this study was to investigate the possible associations of miRNA-27a and Leptin polymorphisms with the risk of recurrent spontaneous abortion (RSA). MATERIAL AND METHODS Between May 2013 and April 2015 at Shenzhen Longhua New District Central Hospital, we randomly recruited 138 RSA patients as the case group and another 142 normal pregnancy women as the control group. We used denaturing high-performance liquid chromatography (DHPLC) to determine the genotypes and allele frequencies of miRNA-27a rs895819 A/G and Leptin rs7799039 G/A...
October 2, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27666924/integrated-microrna-and-protein-expression-analysis-reveals-novel-microrna-regulation-of-targets-in-fetal-down-syndrome
#15
Hua Lin, Weiguo Sui, Wuxian Li, Qiupei Tan, Jiejing Chen, Xiuhua Lin, Hui Guo, Minglin Ou, Wen Xue, Ruohan Zhang, Yong Dai
Down syndrome (DS) is caused by trisomy of human chromosome 21 and is associated with a number of deleterious phenotypes. To investigate the role of microRNA (miRNA) in the regulation of DS, high‑throughput Illumina sequencing technology and isobaric tagging for relative and absolute protein quantification analysis were utilized for simultaneous expression profiling of miRNA and protein in fetuses with DS and normal fetuses. A total of 344 miRNAs were associated with DS. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses were used to investigate the proteins found to be differentially expressed...
November 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27622243/dicer-generates-a-regulatory-microrna-network-in-smooth-muscle-cells-that-limits-neointima-formation-during-vascular-repair
#16
Farima Zahedi, Maliheh Nazari-Jahantigh, Zhe Zhou, Pallavi Subramanian, Yuanyuan Wei, Jochen Grommes, Stefan Offermanns, Sabine Steffens, Christian Weber, Andreas Schober
MicroRNAs (miRNAs) coordinate vascular repair by regulating injury-induced gene expression in vascular smooth muscle cells (SMCs) and promote the transition of SMCs from a contractile to a proliferating phenotype. However, the effect of miRNA expression in SMCs on neointima formation is unclear. Therefore, we studied the role of miRNA biogenesis by Dicer in SMCs in vascular repair. Following wire-induced injury to carotid arteries of Apolipoprotein E knockout (Apoe (-/-)) mice, miRNA microarray analysis revealed that the most significantly regulated miRNAs, such as miR-222 and miR-21-3p, were upregulated...
January 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/27606352/comprehensive-evaluation-of-serum-micrornas-as-biomarkers-in-multiple-sclerosis
#17
Keren Regev, Anu Paul, Brian Healy, Felipe von Glenn, Camilo Diaz-Cruz, Taha Gholipour, Maria Antonietta Mazzola, Radhika Raheja, Parham Nejad, Bonnie I Glanz, Pia Kivisakk, Tanuja Chitnis, Howard L Weiner, Roopali Gandhi
OBJECTIVE: To identify circulating microRNAs (miRNAs) linked to disease stage and disability in multiple sclerosis (MS). METHODS: Sera from 296 participants including patients with MS, other neurologic diseases (Alzheimer disease and amyotrophic lateral sclerosis), and inflammatory diseases (rheumatoid arthritis and asthma) and healthy controls (HCs) were tested. miRNA profiles were determined using LNA (locked nucleic acid)-based quantitative PCR. Patients with MS were categorized according to disease stage and disability...
October 2016: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/27596294/evaluation-of-expression-profiles-of-micrornas-and-two-target-genes-foxo3a-and-runx2-effectively-supports-diagnostics-and-therapy-predictions-in-breast-cancer
#18
D Jurkovicova, M Magyerkova, Z Sestakova, L Copakova, V Bella, M Konecny, M Krivjanska, L Kulcsar, M Chovanec
Breast cancer (BC) including its progression into bone metastasis is a complex process involving changes in gene expression and function of both, microRNAs (miRNAs) and their target genes. Deregulation of miRNAs has been described as a crucial factor responsible for the initiation and progression of BC, and specific miRNA expression profiles have been found to be associated with particular disease states, histological tumor types, and BRCA1/2 or HER status. BRCA1 tumor suppressor is involved in DNA damage response and repair and epigenetically controls miR-155 expression and its pre-cancerous potential...
2016: Neoplasma
https://www.readbyqxmd.com/read/27594411/androgen-induced-mir-27a-acted-as-a-tumor-suppressor-by-targeting-map2k4-and-mediated-prostate-cancer-progression
#19
Xuechao Wan, Wenhua Huang, Shu Yang, Yalong Zhang, Pu Zhang, Zhe Kong, Tao Li, Hai Wu, Fengxiang Jing, Yao Li
Prostate cancer (PCa) is the most commonly diagnosed and secondly leading cause of cancer death among males. But the precise mechanism of prostate cancer progression, including microRNAs (miRNAs) functioning in it, is still needs further study. We found miR-27a to be down-regulated in prostate cancer, and we investigated the mechanism and role of miRNA-27a in prostate cancer. MiR-27a, a transcriptional target of AR, was an androgen-induced miRNA in LNCaP cells. In castration-resistant prostate cancer (CRPC) cells, we for the first time reported that miR-27a was downregulated by PI3K signaling...
October 2016: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/27576678/mirna-profiling-of-circulating-epcam-extracellular-vesicles-promising-biomarkers-of-colorectal-cancer
#20
Marie Stampe Ostenfeld, Steffen Grann Jensen, Dennis Kjølhede Jeppesen, Lise-Lotte Christensen, Stine Buch Thorsen, Jan Stenvang, Michael Lykke Hvam, Anni Thomsen, Peter Mouritzen, Mads Heilskov Rasmussen, Hans Jørgen Nielsen, Torben Falck Ørntoft, Claus Lindbjerg Andersen
Cancer cells secrete small membranous extracellular vesicles (EVs) into their microenvironment and circulation. These contain biomolecules, including proteins and microRNAs (miRNAs). Both circulating EVs and miRNAs have received much attention as biomarker candidates for non-invasive diagnostics. Here we describe a sensitive analytical method for isolation and subsequent miRNA profiling of epithelial-derived EVs from blood samples of patients with colorectal cancer (CRC). The epithelial-derived EVs were isolated by immunoaffinity-capture using the epithelial cell adhesion molecule (EpCAM) as marker...
2016: Journal of Extracellular Vesicles
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