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https://www.readbyqxmd.com/read/29138862/liver-kinase%C3%A2-b1-restoration-promotes-exosome-secretion-and-motility-of-lung-cancer-cells
#1
Cheng Zhang, Xiang Xiao, Minyi Chen, Hitham Aldharee, Yanfang Chen, Weiwen Long
Liver kinase B1 (LKB1) regulates a variety of cellular functions, including cell polarity, energy metabolism and cell growth, by targeting multiple signaling pathways such as AMPK/mTOR and p53. LKB1 functions as a tumor suppressor in sporadic cancers including lung cancer. Extracellular vesicles such as exosomes secreted by cancer cells modulate the tumor microenvironment and progression by targeting both tumor cells (autocrine actions) and other types of cells associated with tumors (paracrine actions). While the roles of LKB1 in cellular signaling in general is well-studied, its specific role in exosome-mediated signaling remains to be explored...
November 9, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29132200/expression-and-prognostic-significance-of-micrornas-in-korean-patients-with-myelodysplastic-syndrome
#2
Yunsuk Choi, Eun-Hye Hur, Ju Hyun Moon, Bon-Kwan Goo, Dae Ro Choi, Je-Hwan Lee
Background/Aims: Various alterations of microRNA (miRNA) expression have been reported in myelodysplastic syndrome (MDS). We aimed to investigate the unique patterns and prognostic significance of miRNA expression in Korean patients with MDS. Methods: Bone marrow mononuclear cells were collected from eight healthy controls and 26 patients with MDS, and miRNAs were isolated and assessed via quantitative real-time polymerase chain reaction for selected miRNAs, including miR-21, miR-124a, miR-126, miR-146b-5p, miR-155, miR-182, miR-200c, miR-342-5p, miR-708, and Let-7a...
November 15, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29127370/exosomal-mir-126-as-a-circulating-biomarker-in-non-small-cell-lung-cancer-regulating-cancer-progression
#3
Franco Grimolizzi, Federica Monaco, Francesca Leoni, Massimo Bracci, Sara Staffolani, Cristiana Bersaglieri, Simona Gaetani, Matteo Valentino, Monica Amati, Corrado Rubini, Franca Saccucci, Jiri Neuzil, Marco Tomasetti, Lory Santarelli
Lung cancer is one of the leading causes of cancer-related deaths. It is diagnosed mostly at the locally advanced or metastatic stage. Recently, micro RNAs (miRs) and their distribution in circulation have been implicated in physiological and pathological processes. In this study, miR-126 was evaluated in serum, exosome and exosome-free serum fractions in non-small cell lung cancer (NSCLC) patients at early and advanced stages, and compared with healthy controls. Down-regulation of miR-126 was found in serum of advanced stage NSCLC patients...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29126355/elevated-circulating-endothelial-specific-micrornas-in-migraine-patients-a-pilot-study
#4
Chun-Yu Cheng, Shih-Pin Chen, Yi-Chu Liao, Jong-Ling Fuh, Yen-Feng Wang, Shuu-Jiun Wang
Background Evidence of vascular dysfunction in migraine is increasing. MicroRNAs (miRs) have emerged as important regulators of vascular endothelial functions. This exploratory study investigated whether circulating levels of miRs associated with endothelial function are altered in migraine patients. Methods Thirty patients with migraine (20-50 years old) without overt vascular risk factors and 30 sex- and age-matched healthy controls participated. The levels of four miRs that regulate endothelial function (miR-155, miR-126, miR-21, and Let-7g) were quantified and expressed in terms of fold changes (2(-ΔΔct)) relative to mean levels in the control group...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29118970/14-3-3%C3%AE-loss-leads-to-neonatal-lethality-by-microrna-126-downregulation-mediated-developmental-defects-in-lung-vasculature
#5
Jun Yang, Sonali Joshi, Qingfei Wang, Ping Li, Hai Wang, Yan Xiong, Yi Xiao, Jinyang Wang, Jan Parker-Thornburg, Richard R Behringer, Dihua Yu
Background: The 14-3-3 family of proteins have been reported to play an important role in development in various mouse models, but the context specific developmental functions of 14-3-3ζ remain to be determined. In this study, we identified a context specific developmental function of 14-3-3ζ. Results: Targeted deletion of 14-3-3ζ in the C57Bl/6J murine genetic background led to neonatal lethality due to respiratory distress and could be rescued by out-breeding to the CD-1 or backcrossing to the FVB/NJ congenic background...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/29115445/mir%C3%A2-126-is-essential-for-endothelial-phenotype-expression-during-endothelial-differentiation-in-adipose%C3%A2-derived-stem-cells
#6
Han Xie, Fang Wang, Xiao Chen, Hao Ying
The endothelial differentiation of stem cells serves an essential role in vascular development, function and disease. Autograft adipose‑derived stem cells (ADSCs) may be a novel source of cell for use in the study of angiogenesis. microRNA‑126 (miR‑126) has been extensively studied in endothelial cells. However, the effect of miR‑126 on the endothelial differentiation of ADSCs has not been demonstrated. In the present study, it was observed that the expression of miR‑126 was markedly increased during the endothelial differentiation of ADSCs in a time‑dependent manner...
October 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29113498/decreased-serum-microrna-21-level-is-associated-with-obesity-in-healthy-and-type-2-diabetic-subjects
#7
Samira Ghorbani, Roya Mahdavi, Behnam Alipoor, Ghodratollah Panahi, Ensieh Nasli Esfahani, Farideh Razi, Mohhammad Taghikhani, Reza Meshkani
BACKGROUND: Recently, much attention has been paid to the role of circulating microRNAs (miRNAs) as novel biomarkers for various diseases. The aim of this study was to investigate the level of a subset of miRNAs in serum samples of the diabetic and healthy subjects. METHODS: Forty two healthy and 45 T2D subjects participated in this study. Serum miR-21, miR-126, and miR-146a levels were measured using real-time PCR. RESULTS: There was no significant difference in the serum level of miR-21, miR-126, and miR-146a between the diabetic and non-diabetic groups...
November 7, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29113367/micrornas-with-prognostic-significance-in-osteosarcoma-a-systemic-review-and-meta-analysis
#8
Dong Cheng, Xubin Qiu, Ming Zhuang, Chenlei Zhu, Hongjun Zou, Zhiwei Liu
Introduction: This study aimed to elucidate the prognostic value of microRNAs (miRNAs) in patients with osteosarcoma. Materials and Methods: Studies were recruited by searching PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure, and Wanfang data-bases (final search update conducted January 2017). Eligible studies were identified and the quality was assessed using multiple search strategies. Results: A total of 55 articles that investigated the correlation between miRNA expression and either patient survival or disease recurrence in osteosarcoma was initially identified...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29103030/mir-30a-5p-together-with-mir-210-3p-as-a-promising-biomarker-for-non-small-cell-lung-cancer-a-preliminary-study
#9
Weronika Świtlik, Michał Seweryn Karbownik, Michał Suwalski, Józef Kozak, Janusz Szemraj
BACKGROUND: Although an immense effort has been made to develop novel diagnostic methods and treatment strategies for non-small cell lung cancer (NSCLC), the survival rate of this disease has remained virtually unchanged. Small non-coding RNAs called microRNAs (miRNAs) have appeared to be very promising biomarkers of cancer including NSCLC. OBJECTIVE: We investigated the expression level of six miRNAs, and subsequently we evaluated their diagnostic ability and their clinical significance...
October 27, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29091246/study-on-mirnas-expression-for-the-invasion-of-pituitary-adenomas
#10
Guoqiang Yu, Hongyun Wang, Shengyuan Yu, Chuzhong Li, Jiwei Bai, Songbai Gui, Yazhuo Zhang, Peng Zhao
AIM: To explore the possible invasive effect of four microRNAs in invasive pituitary adenomas. MATERIAL AND METHODS: Based on our previous studies, several in silico algorithms, and relative literatures, 30 Han Chinese patients with invasive pituitary adenomas and 30 with non-invasive pituitary adenomas were involved in this research. The proteins related to invasion underwent immunohistochemical staining, including basic fibroblast growth factor (FGF2), pituitary tumor transforming gene (PTTG), cyclin B1 (CCNB1), survivin, focal adhesion kinase (FAK), and microvessel density (MVD)...
September 26, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29062885/arctigenin-inhibits-prostate-tumor-cell-growth-in-vitro-and-in-vivo
#11
Piwen Wang, Walter Solorzano, Tanya Diaz, Clara E Magyar, Susanne M Henning, Jaydutt V Vadgama
The low bioavailability of most phytochemicals limits their translation to humans. We investigated whether arctigenin, a novel anti-inflammatory lignan from the seeds of Arctium lappa, has favorable bioavailability/potency against prostate cancer. The anticarcinogenic activity of arctigenin was investigated both in vitro using the androgen-sensitive LNCaP and LAPC-4 human prostate cancer cells and pre-malignant WPE1-NA22 cells, and in vivo using xenograft mouse models. Arctigenin at lower doses (< 2μM) significantly inhibited the proliferation of LNCaP and LAPC-4 cells by 30-50% at 48h compared to control, and inhibited WPE1-NA22 cells by 75%, while did not affect normal prostate epithelial cells...
June 2017: Clin Nutr Exp
https://www.readbyqxmd.com/read/29062343/expression-of-mir-126-and-its-potential-function-in-coronary-artery-disease
#12
Xiaoyan Wang, Yajun Lian, Xin Wen, Jing Guo, Zhiping Wang, Sheng Jiang, Yaodong Hu
OBJECTIVE: This study aimed to explore the role of miR-126 in coronary artery disease (CAD) patients and the potential gene targets of miR-126 in atherosclerosis. METHODOLOGY: A total of 60 CAD patients and 25 healthy control subjects were recruited in this study. Among the 60 CAD patients, 18 cases were diagnosed of stable angina pectoris (SAP), 20 were diagnosed of unstable angina pectoris (UAP) and 22 were diagnosed of acute myocardial infarction (AMI). Plasma miR-126 levels from both groups of participants were analyzed by real-time quantitative PCR...
June 2017: African Health Sciences
https://www.readbyqxmd.com/read/29057541/transplantation-of-adipose-tissue-derived-stem-cell-derived-exosomes-ameliorates-erectile-function-in-diabetic-rats
#13
L L Zhu, X Huang, W Yu, H Chen, Y Chen, Y T Dai
Mesenchymal stem cells (MSCs) have been considered as an attractive tool for the therapy of diseases. Accumulating evidence indicates that the healing effects of MSCs are mainly related to paracrine action rather than transdifferentiation. Exosomes excreted from MSCs have emerged as physiologically relevant and powerful components of the MSC secretome. However, whether MSC-derived exosomes can improve erectile function of streptozotocin-induced diabetic rats and its mechanism remains unknown. Our previous work showed that adipose tissue-derived stem cells (ADSCs) transplantation could increase endothelial and smooth muscle contents and improve erectile function of diabetic rats...
October 23, 2017: Andrologia
https://www.readbyqxmd.com/read/29042193/microrna-126-3p-attenuates-blood-brain-barrier-disruption-cerebral-edema-and-neuronal-injury-following-intracerebral-hemorrhage-by-regulating-pik3r2-and-akt
#14
Tianyang Xi, Feng Jin, Ying Zhu, Jialu Wang, Ling Tang, Yanzhe Wang, David S Liebeskind, Zhiyi He
MiR-126, a microRNA implicated in blood vessel integrity, angiogenesis and vascular inflammation, is markedly decreased in the sera of patients with intracerebral hemorrhage (ICH). The current study aims to evaluate the potential therapeutic effect of miR-126-3p on brain injuries in a rat model of collagenase-induced ICH. Intracerebroventricular administration of a miR-126-3p mimic significantly alleviated behavioral defects 24 h after ICH, as examined by paw placement and corner tests. ICH led to increased blood-brain barrier (BBB) permeability and cerebral edema, both of which were attenuated by miR-126-3p mimic...
October 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29041944/differential-expression-of-porcine-micrornas-in-african-swine-fever-virus-infected-pigs-a-proof-of-concept-study
#15
Fernando Núñez-Hernández, Lester Josué Pérez, Marta Muñoz, Gonzalo Vera, Francesc Accensi, Armand Sánchez, Fernando Rodríguez, José I Núñez
BACKGROUND: African swine fever (ASF) is a re-expanding devastating viral disease currently threatening the pig industry worldwide. MicroRNAs are a class of 17-25 nucleotide non- coding RNAs that have been shown to have critical functions in a wide variety of biological processes, such as cell differentiation, cell cycle regulation, carcinogenesis, apoptosis, regulation of immunity as well as in viral infections by cleavage or translational repression of mRNAs. Nevertheless, there is no information about miRNA expression in an ASFV infection...
October 17, 2017: Virology Journal
https://www.readbyqxmd.com/read/29036818/a-9-microrna-signature-in-serum-serves-as-a-noninvasive-biomarker-in-early-diagnosis-of-alzheimer-s-disease
#16
Rui Guo, Gang Fan, Jian Zhang, Chunxiao Wu, Yifeng Du, Hui Ye, Zhang Li, Lili Wang, Zhihui Zhang, Lu Zhang, Yueran Zhao, Zhiming Lu
Alzheimer's disease (AD) is the most common type of age-related neurodegenerative disorder; nevertheless, nowadays there are no reliable biomarkers or non-invasive techniques available for its early detection. Recent studies have indicated that the circulating level profiles of microRNAs (miRNAs) have the potential to be used as valuable biomarkers for diagnosis, staging, and progress monitoring of various diseases. Here we report a novel 9-miRNA signature (hsa-miR-26a-5p, hsa-miR-181c-3p, hsa-miR-126-5p, hsa-miR-22-3p, hsa-miR-148b-5p, hsa-miR-106b-3p, hsa-miR-6119-5p, hsa-miR-1246, and hsa-miR-660-5p) that can be utilized as biomarker for detecting AD...
October 12, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036355/design-and-implementation-of-a-synthetic-pre-mir-switch-for-controlling-mirna-biogenesis-in-mammals
#17
Janina Atanasov, Florian Groher, Julia E Weigand, Beatrix Suess
Synthetic RNA-based systems have increasingly been used for the regulation of eukaryotic gene expression. Due to their structural properties, riboregulators provide a convenient basis for the development of ligand-dependent controllable systems. Here, we demonstrate reversible conditional control of miRNA biogenesis with an aptamer domain as a sensing unit connected to a natural miRNA precursor for the first time. For the design of the pre-miR switch, we replaced the natural terminal loop with the TetR aptamer...
September 28, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29030746/platelet-microrna-for-predicting-acute-myocardial-infarction
#18
Shuhua Li, Long Zhe Guo, Moo Hyun Kim, Jin-Yeong Han, Victor Serebruany
Acute myocardial infarction (AMI) is one of the leading causes of morbidity and mortality worldwide, while early diagnosis still represents an upmost priority. While platelet activation is critical for AMI pathogenesis, the role of platelet microRNAs (pmiRNAs) as biomarkers for AMI is unclear. Furthermore, correlations between the levels of pmiRNAs and indices of platelet activity are also unknown. Expression of platelet miR-1, miR-21, miR-126, miR-150 and miR-223 were prospectively assessed in 20 ST-segment elevation myocardial infarction (STEMI) patients, and 40 healthy volunteers...
November 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28994022/evaluation-of-epigenetic-alterations-mir-126-and-mir-155-expression-levels-in-mexican-children-exposed-to-inorganic-arsenic-via-drinking-water
#19
Mónica S Pérez-Vázquez, Ángeles C Ochoa-Martínez, Tania RuÍz-Vera, Yesenia Araiza-Gamboa, Iván N Pérez-Maldonado
Recently, a great number of epidemiological studies have shown evidence that exposure to inorganic arsenic could have harmful effects on the cardiovascular system of humans. However, the underlying mechanisms through which arsenic induces cardiovascular toxic effects remain unclear. In this regard, epigenetic mechanisms have emerged as a probable connection between environment and disease phenotypes, including cardiovascular diseases. Therefore, this study aimed to evaluate epigenetic changes related to cardiotoxicity (miR-126 and miR-155 expression levels) in children from San Luis Potosi, Mexico exposed to inorganic arsenic...
October 6, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28987000/microrna-126-deficiency-enhanced-the-activation-and-function-of-cd4-t-cells-by-elevating-irs-1-pathway
#20
Fengyun Chu, Yan Hu, Ya Zhou, Mengmeng Guo, Jia Lu, Wen Zheng, Hualin Xu, Juanjuan Zhao, Lin Xu
Recent evidence showed that microRNA-126 (miR-126) has been involved in the development and function of immune cells, which contributed to the pathogenesis of related clinical diseases. However, the potential role of miR-126 in the development and function of CD4(+) T cells remains largely unknown. Here we firstly found that the activation and proliferation, as well as the expression of IFN-γ, of CD4(+) T cells from miR-126 knockdown (KD) mice using miRNA-Sponge technique were enhanced significantly in vitro, compared with those in CD4(+) T cells from wild type (WT) mice...
October 7, 2017: Clinical and Experimental Immunology
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