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https://www.readbyqxmd.com/read/28513999/microparticles-of-healthy-origins-improve-endothelial-progenitor-cell-dysfunction-via-microrna-transfer-in-an-atherosclerotic-hamster-model
#1
Nicoleta Alexandru, Eugen Andrei, Loredan Niculescu, Emanuel Dragan, Violeta Ristoiu, Adriana Georgescu
AIM: In this study we aimed: (1) to obtain and functionally characterize the cultures of late endothelial progenitor cells (EPCs) from the animal blood; (2) to investigate the potential beneficial effects of circulating microparticles (MPs) of healthy origins on EPC dysfunctionality in atherosclerosis as well as involved mechanisms. METHODS: Late EPCs were obtained and expanded in culture from peripheral blood isolated from two animal groups: hypertensive-hyperlipidemic (HH) and control (C) hamsters...
May 17, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28509372/differential-expression-of-micrornas-related-to-irritable-bowel-syndrome-in-a-rabbit-model
#2
Qinqin Yang, Xiaoping Xu, Hongshu Zhao, Yueqin Cai, Yongming Pan, Jianqin Xu, Quanxin Ma, Minli Chen
AIM: In the study we evaluated differential expression of miRNAs in the white hair and black eyes(WHBE) rabbit model of irritable bowel syndrome(IBS). METHODS: WHBE IBS rabbits were exposed to moist heat, stress, and stimulation with a low-dose laxative. Intestional propulsion rate(IPR) was measured. Blood samples were taken to detect changes in serum 5-hydroxytryptamine(5-HT) and dopamine(DA) levels, and colon tissues were to detect c-fos by immunohistochemistry...
May 16, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28503423/microrna-126-a-promising-novel-biomarker-in-peripheral-blood-for-diabetic-retinopathy
#3
Li-Li Qin, Mei-Xia An, Yan-Li Liu, Han-Chun Xu, Zhi-Qing Lu
AIM: To investigate the content of serum microRNA-126 (miR-126) and its role in screening retinal endothelial injury and early diagnosis of proliferative diabetic retinopathy. METHODS: The study included 184 serum samples, 59 samples from healthy individuals, 44 samples from diabetes mellitus (DM) patients without diabetic retinopathy (NDR), 42 from non-proliferative diabetic retinopathy (NPDR) patients and 39 samples from proliferative diabetic retinopathy (PDR) patients...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28499275/effects-of-microrna-126-on-cell-proliferation-apoptosis-and-tumor-angiogenesis-via-the-down-regulating-erk-signaling-pathway-by-targeting-egfl7-in-hepatocellular-carcinoma
#4
Cheng Gong, Jing Fang, Guang Li, Han-Han Liu, Zhi-Su Liu
This study intends to explore the effects of microRNA-126 (miR-126) on cell proliferation, apoptosis, and tumor angiogenesis in hepatocellular carcinoma (HCC) by regulating epidermal growth factor-like domain 7 (EGFL7) through extracellular signal-regulated kinase (ERK) signaling. HCC tissues and adjacent normal tissues were obtained from 184 HCC patients. HCC cells were separately transfected with recombinant plasmids. Western blotting and qRT-PCR were applied to detect miR-126 and EGFL7, ERK, Fas/FasL, Bcl-2, Caspase mRNA and protein levels...
April 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28469417/plasma-microrna-levels-following-resection-of-metastatic-melanoma
#5
Nicholas Latchana, Zachary B Abrams, J Harrison Howard, Kelly Regan, Naduparambil Jacob, Paolo Fadda, Alicia Terando, Joseph Markowitz, Doreen Agnese, Philip Payne, William E Carson
Melanoma remains the leading cause of skin cancer-related deaths. Surgical resection and adjuvant therapies can result in disease-free intervals for stage III and stage IV disease; however, recurrence is common. Understanding microRNA (miR) dynamics following surgical resection of melanomas is critical to accurately interpret miR changes suggestive of melanoma recurrence. Plasma of 6 patients with stage III (n = 2) and stage IV (n = 4) melanoma was evaluated using the NanoString platform to determine pre- and postsurgical miR expression profiles, enabling analysis of more than 800 miRs simultaneously in 12 samples...
2017: Bioinformatics and Biology Insights
https://www.readbyqxmd.com/read/28464406/sustained-apnea-induces-endothelial-activation
#6
Lars Eichhorn, Ramona Dolscheid-Pommerich, Felix Erdfelder, Muhammad Ajmal Ayub, Theresa Schmitz, Nikos Werner, Felix Jansen
BACKGROUND: Apnea diving has gained worldwide popularity, even though the pathophysiological consequences of this challenging sport on the human body are poorly investigated and understood. This study aims to assess the influence of sustained apnea in healthy volunteers on circulating microparticles (MPs) and microRNAs (miRs), which are established biomarkers reflecting vascular function. HYPOTHESIS: Short intermittent hypoxia due to voluntary breath-holding affects circulating levels of endothelial cell-derived MPs (EMPs) and endothelial cell-derived miRs...
May 2, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28445945/non-small-cell-lung-cancer-associated-microrna-expression-signature-integrated-bioinformatics-analysis-validation-and-clinical-significance
#7
Chunyu Li, Yunhong Yin, Xiao Liu, Xuejiao Xi, Weixiao Xue, Yiqing Qu
Recently, increasing studies of miRNA expression profiling has confirmed that miRNA plays an essential role in non-small cell lung cancer (NSCLC). However, inconsistent or discrepant results exist in these researches. In present study, we performed an integrative analysis of 32 miRNA profiling studies compared the differentially expressed miRNA between NSCLC tissue and non-cancerous lung tissue to identify candidate miRNAs associated with NSCLC. 7 upregulated and 10 downregulated miRNAs were identified as miRNA integrated-signature using Robust Rank Aggregation (RRA) method...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28440196/mir-126-as-a-therapeutic-agent-for-diabetes-mellitus
#8
Elham Pishavar, Javad Behravan
Diabetes mellitus (DM) is a metabolic disorder which is characterized by inappropriate hyperglycemia. It is becoming an epidemic disease in developing countries. Diabetic patients are frequently afflicted with a vascular dysfunction and wound healing defect. In spite of intense investigations, over the past 2-3 decades, optimal treatment options and related mechanisms are still unclear. MicroRNAs (miRNAs) are small noncoding RNAs considered as regulators of a vast number of biological processes including endothelial cell function controlling molecular signaling pathways in diabetic pathogenesis...
April 24, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28438233/mir-126-5p-restoration-promotes-cell-apoptosis-in-cervical-cancer-by-targeting-bcl2l2
#9
Changlin Wang, Bin Zhou, Min Liu, Ying Liu, Rui Gao
Cervical cancer is one of the most common cancers in females, with a high incidence and mortality around the world. However, the pathogenesis in cervical cancer is not completely known. In the present study, we investigated the role of miR-126-5p and Bcl2l2 in cervical cancer cells. First, miR-126-5p expression was aberrantly downregulated in human cervical cancer tumor tissues in comparison with normal tissues, as evaluated by RT-PCR. Consistently, the levels of miR-126-5p were also significantly reduced in cervical cancer cell lines when compared to normal cervical epithelial cells...
April 14, 2017: Oncology Research
https://www.readbyqxmd.com/read/28437675/whole-blood-sequencing-reveals-circulating-microrna-associations-with-high-risk-traits-in-non-st-segment-elevation-acute-coronary-syndrome
#10
Alice Wang, Lydia Coulter Kwee, Elizabeth Grass, Megan L Neely, Simon G Gregory, Keith A A Fox, Paul W Armstrong, Harvey D White, E Magnus Ohman, Matthew T Roe, Svati H Shah, Mark Y Chan
BACKGROUND AND AIMS: Although circulating microRNA (miRNAs) have emerged as biomarkers predicting mortality in acute coronary syndrome (ACS), more data are needed to understand these mechanisms. Mapping miRNAs to high-risk traits may identify miRNAs involved in pathways conferring risk for poor outcome in ACS. We aim to investigate the relationship between circulating miRNAs and high-risk traits in non-ST-segment elevation acute coronary syndrome (NSTE-ACS). METHODS: Whole-genome miRNA sequencing was performed on RNA extracted from whole blood of 199 patients with NSTE-ACS...
March 30, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28433939/enhanced-proangiogenic-potential-of-mesenchymal-stem-cell-derived-exosomes-stimulated-by-a-nitric-oxide-releasing-polymer
#11
Wei Du, Kaiyue Zhang, Shuaiqiang Zhang, Ran Wang, Yan Nie, Hongyan Tao, Zhibo Han, Lu Liang, Di Wang, Jianfeng Liu, Na Liu, Zhongchao Han, Deling Kong, Qiang Zhao, Zongjin Li
Mesenchymal stem cell (MSC)-derived exosomes have been recognized as new candidates for the treatment of degenerative diseases or injury and may provide an alternative to cell-based therapy. However, the compositions in MSC-derived exosomes are highly influenced by the microenvironment in which their original cells reside. Here, we hypothesized that a nitric oxide (NO)-releasing polymer can boost the proangiogenic compositions of exosomes and enhance their proangiogenic capacity. Our results demonstrated that exosomes, released from human placenta-derived MSCs (hP-MSCs) by NO stimulation, augment the angiogenic effects of human umbilical vein endothelial cells (HUVECs) in vitro...
April 17, 2017: Biomaterials
https://www.readbyqxmd.com/read/28426456/expression-and-localization-of-mir-21-and-mir-126-in-mucosal-tissue-from-patients-with-inflammatory-bowel-disease
#12
Gorm Thorlacius-Ussing, Boye Schnack Nielsen, Vibeke Andersen, Kim Holmstrøm, Anders E Pedersen
BACKGROUND: microRNAs (miRNAs) are small noncoding RNAs that guide degradation of mRNA and regulate protein expression. miRNA based diagnostic biomarkers for ulcerative colitis (UC) and Crohn's disease (CD) are emerging but information about the cellular localization of many miRNAs is limited and more detailed histologic evaluation of miRNA expression patterns is needed to understand their immunobiological function. METHODS: Formalin-fixed paraffin-embedded colon biopsies from 10 patients with UC and 8 patients with CD together with 9 controls were examined by RT-qPCR and quantitative in situ hybridization (ISH)...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28425970/aneurysm-specific-mir-221-and-mir-146a-participates-in-human-thoracic-and-abdominal-aortic-aneurysms
#13
Premakumari Venkatesh, Julie Phillippi, Sasanka Chukkapalli, Mercedes Rivera-Kweh, Irina Velsko, Thomas Gleason, Paul VanRyzin, Seyed Hossein Aalaei-Andabili, Ravi Kiran Ghanta, Thomas Beaver, Edward Kar Leung Chan, Lakshmyya Kesavalu
Altered microRNA expression is implicated in cardiovascular diseases. Our objective was to determine microRNA signatures in thoracic aortic aneurysms (TAAs) and abdominal aortic aneurysms (AAAs) compared with control non-aneurysmal aortic specimens. We evaluated the expression of fifteen selected microRNA in human TAA and AAA operative specimens compared to controls. We observed significant upregulation of miR-221 and downregulation of miR-1 and -133 in TAA specimens. In contrast, upregulation of miR-146a and downregulation of miR-145 and -331-3p were found only for AAA specimens...
April 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28425867/chemokines-and-relevant-micrornas-in-the-atherogenic-process
#14
Dimitry A Chistiakov, Alexander N Orekhov, Yuri V Bobryshev
Chemokines play a significant role in initial and advanced steps of atherogenesis. In early steps, chemokines control the adhesion of leukocytes to endothelial cells (ECs) followed by transmigration of monocytes and their deposition in the intima where they differentiate to proinflammatory macrophages. Except proinflammatory activity, chemokines are responsible for homeostasis and homing of progenitor cells. Recently, microRNAs (miRs) were found to control expression and activity of chemokines in ECs, vascular smooth muscle cells (VSMCs), and macrophages at different steps of atherogenesis...
April 19, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28424619/retinal-and-circulating-mirnas-in-age-related-macular-degeneration-an-in-vivo-animal-and-human-study
#15
Giovanni L Romano, Chiara B M Platania, Filippo Drago, Salvatore Salomone, Marco Ragusa, Cristina Barbagallo, Cinzia Di Pietro, Michele Purrello, Michele Reibaldi, Teresio Avitabile, Antonio Longo, Claudio Bucolo
Age related macular degeneration (AMD) is the leading cause of blindness among people aged 50 and over. Retinal deposition of amyloid-β (Aβ) aggregates in AMD patients has suggested a potential link between AMD and Alzheimer's disease (AD). We have evaluated the differential retinal expression profile of miRNAs in a rat model of AMD elicited by Aβ. A serum profile of miRNAs in AMD patients has been also assessed using single TaqMan assay. Analysis of retina from rats intravitreally injected with Aβ revealed that miR-27a, miR-146a, and miR-155 were up-regulated in comparison to control rats...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28411247/exosomal-microrna-transfer-into-macrophages-mediates-cellular-postconditioning
#16
Geoffrey de Couto, Romain Gallet, Linda Cambier, Ervin Jaghatspanyan, Nupur Makkar, James Frederick Dawkins, Benjamin P Berman, Eduardo Marbán
BACKGROUND: Cardiosphere-derived cells (CDCs) confer cardioprotection in acute myocardial infarction (MI) via distinctive macrophage (MΦ) polarization. Here we demonstrate that CDC-secreted exosomes (CDCexo) recapitulate the cardioprotective effects of CDC therapy known as cellular postconditioning. METHODS: Rats and pigs underwent MI induced by ischemia-reperfusion prior to intracoronary infusion of CDCexo, inert fibroblast exosomes (Fbexo; control), or vehicle. Two days later, infarct size was quantified...
April 14, 2017: Circulation
https://www.readbyqxmd.com/read/28404902/mechanism-of-modulation-through-pi3k-akt-pathway-about-nepeta-cataria-l-s-extract-in-non-small-cell-lung-cancer
#17
Jiaxin Fan, Yongrui Bao, Xiansheng Meng, Shuai Wang, Tianjiao Li, Xin Chang, Guanlin Yang, Tao Bo
Non-small cell lung cancer (NSCLC) is regarded as one of the major intractable diseases, which was cured mainly by chemotherapeutics in the clinical treatment at present. But it is still a vital mission for the current medical and researchers that hunting a natural medicine which have little side effects and high-efficiency against the NSCLC on account of the shortcomings on current drugs. Nepeta cataria L. plays an important role in anti-cancer treatment according to the reports which was recorded in the Chinese Pharmacopoeia of version 2015 and belongs to one of the Traditional Chinese medicine (TCM)...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28393113/evaluating-normalization-approaches-for-the-better-identification-of-aberrant-micrornas-associated-with-hepatocellular-carcinoma
#18
Jing Shen, Qiao Wang, Irina Gurvich, Helen Remotti, Regina M Santella
AIM: Dysregulated microRNAs (miRNAs) have been identified in hepatocellular carcinoma (HCC), but only a small proportion have been confirmed. An appropriate normalizer is crucial to determining the accuracy and reliability of data from miRNA studies. METHODS: Different normalization strategies were used to validate genome-wide miRNA profiles in HCC tumor and non-tumor tissues, and to determine the consistency and discrepancy of data on dysregulated miRNAs. RESULTS: Two sets of stable miRNAs (miR-30c/miR-30b and miR-30c/miR-126) were identified in HCC tissues by geNorm and NormFinder tools, respectively...
November 2016: Hepatoma Research
https://www.readbyqxmd.com/read/28388561/cell-free-microrna-expression-signatures-in-urine-serve-as-novel-noninvasive-biomarkers-for-diagnosis-and-recurrence-prediction-of-bladder-cancer
#19
Lutao Du, Xiumei Jiang, Weili Duan, Rui Wang, Lishui Wang, Guixi Zheng, Keqiang Yan, Lili Wang, Juan Li, Xin Zhang, Hongwei Pan, Yongmei Yang, Chuanxin Wang
Urinary microRNAs (miRNAs) are potential biomarkers for the noninvasive diagnosis of bladder cancer (BC). In this study, we aimed to develop a urinary miRNAs panel for diagnosing and predicting recurrence of BC. Genome-wide miRNAs analysis by deep sequencing followed by two phases of quantitative real-time PCR assays were performed on urine supernatant of 276 BC patients and 276 controls. We identified a seven-miRNA panel (miR-7-5p, miR-22-3p, miR-29a-3p, miR-126-5p, miR-200a-3p, miR-375, and miR-423-5p) that provided high diagnostic accuracy of BC with an AUC of 0...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28379605/microrna-126-inhibits-proliferation-migration-invasion-and-emt-in-osteosarcoma-by-targeting-zeb1
#20
Rui Jiang, Chao Zhang, Guangyao Liu, Rui Gu, Han Wu
Osteosarcoma (OS) is a tumor with rapid progression, high metastatic potential and poor clinical prognosis. This study was aimed to investigate the function of miR-126 in OS cells. The miR-126 expression in OS cell lines and OS tissues were explored by qRT-PCR. Then, the effects of miR-126 on proliferation, cycle, migration, invasion and transforming growth factor (TGF)-β1 induced epithelial to mesenchymal transition (EMT) were assessed. Predicted by TargetScan, one of target genes for miR-126 was verified by luciferase activity assay...
April 5, 2017: Journal of Cellular Biochemistry
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