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Exosome mirna

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https://www.readbyqxmd.com/read/28741758/stem-cell-derived-exosomes-a-promising-strategy-for-fracture-healing
#1
REVIEW
Zi-Chen Hao, Jun Lu, Shan-Zheng Wang, Hao Wu, Yun-Tong Zhang, Shuo-Gui Xu
OBJECTIVES: To describe the biological characteristics of exosomes and to summarize the current status of stem cell-derived exosomes on fracture healing. Meanwhile, future challenges, limitations and perspectives are also discussed. METHODS: Search and analyze the related articles in pubmed database through the multi-combination of keywords like "stem cells","exosomes","bone regeneration" and "fracture healing". CONCLUSION: Stem cell-derived exosome therapy for fracture healing has been enjoying popularity and is drawing increasing attention...
July 25, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28741069/microrna-100-shuttled-by-mesenchymal-stem-cell-derived-exosomes-suppresses-in-vitro-angiogenesis-through-modulating-the-mtor-hif-1%C3%AE-vegf-signaling-axis-in-breast-cancer-cells
#2
Katayoon Pakravan, Sadegh Babashah, Majid Sadeghizadeh, Seyed Javad Mowla, Majid Mossahebi-Mohammadi, Farangis Ataei, Nasim Dana, Mohammad Javan
BACKGROUND: Human mesenchymal stem cells (MSCs) have been shown to be involved in the formation and modulation of tumor stroma and in interacting with tumor cells, partly through their secretome. Exosomes are nano-sized intraluminal multi-vesicular bodies secreted by most types of cells and have been found to mediate intercellular communication through the transfer of genetic information via coding and non-coding RNAs to recipient cells. Since exosomes are considered as protective and enriched sources of shuttle microRNAs (miRNAs), we hypothesized that exosomal transfer of miRNAs from MSCs may affect tumor cell behavior, particularly angiogenesis...
July 24, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28740555/atg9b-deficiency-suppresses-autophagy-and-potentiates-endoplasmic-reticulum-stress-associated-hepatocyte-apoptosis-in-hepatocarcinogenesis
#3
Ning Wang, Hor-Yue Tan, Sha Li, Yibin Feng
The aim of this study was to investigate the mechanism underlying autophagy deficiency during hepatic carcinogenesis. For this purpose, we used choline-deficient, amino acid-defined (CDAA) hepatocarcinogenesis model in mice. miRNA microarrays combined with computational target predictions and GO analysis were used to identify molecular processes involved in carcinogenesis. PCR profiler array was employed to detect the dysregulated autophagy-related genes during carcinogenesis. We observed induction of hepatic tumours with increased inflammation, DNA damage, and cell death...
2017: Theranostics
https://www.readbyqxmd.com/read/28739030/immune-modulatory-micrornas-as-a-novel-mechanism-to-revert-immune-escape-of-tumors
#4
REVIEW
Barbara Seliger
Tumors have developed different strategies to escape immune recognition. This could be due to altered expression of classical and non-classical human leukocyte antigens (HLA), co-inhibitory or co-stimulatory molecules as well as components of the interferon signaling pathway. Furthermore, changes in the tumor microenvironment negatively interfere with anti-tumor immune responses and the frequency and activity of immune effector cells and professional antigen presenting cells (APC), while the number of immune suppressive cells is increased...
July 13, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28737826/comparison-of-isolation-methods-of-exosomes-and-exosomal-rna-from-cell-culture-medium-and-serum
#5
Yue-Ting Tang, Yi-Yao Huang, Lei Zheng, Si-Hua Qin, Xu-Ping Xu, Tai-Xue An, Yong Xu, Ying-Song Wu, Xiu-Mei Hu, Bao-Hong Ping, Qian Wang
Exosomes are cell-derived vesicles and are abundant in biological fluids; they contain RNA molecules which may serve as potential diagnostic biomarkers in 'precision medicine'. To promote the clinical application of exosomal RNA (exoRNA), many isolation methods must be compared and validated. Exosomes in cell culture medium (CCM) and serum may be isolated using ultracentrifugation (UC), ExoQuick or Total Exosome Isolation Reagent (TEI), and exoRNA may be extracted using TRIzol-LS, SeraMir, Total Exosome RNA Isolation (TER), HiPure Liquid RNA/miRNA kit (HLR), miRNeasy or exoRNeasy...
July 24, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28733902/clustering-and-candidate-motif-detection-in-exosomal-mirnas-by-application-of-machine-learning-algorithms
#6
Pallavi Gaur, Anoop Chaturvedi
BACKGROUND: The clustering pattern and motifs give immense information about any biological data. An application of machine learning algorithms for clustering and candidate motif detection in miRNAs derived from exosomes is depicted in this paper. Recent progress in the field of exosome research and more particularly regarding exosomal miRNAs has led much bioinformatic-based research to come into existence. The information on clustering pattern and candidate motifs in miRNAs of exosomal origin would help in analyzing existing, as well as newly discovered miRNAs within exosomes...
July 22, 2017: Interdisciplinary Sciences, Computational Life Sciences
https://www.readbyqxmd.com/read/28729721/plasma-derived-exosome-characterization-reveals-a-distinct-microrna-signature-in-long-duration-type-1-diabetes
#7
Marta Garcia-Contreras, Sanket H Shah, Alejandro Tamayo, Paul D Robbins, Ronald B Golberg, Armando J Mendez, Camillo Ricordi
Type 1 diabetes mellitus (T1DM) results from an autoimmune attack against the insulin-producing ß cells which leads to chronic hyperglycemia. Exosomes are lipid vesicles derived from cellular multivesicular bodies that are enriched in specific miRNAs, potentially providing a disease-specific diagnostic signature. To assess the value of exosome miRNAs as biomarkers for T1DM, miRNA expression in plasma-derived exosomes was measured. Nanoparticle tracking analysis and transmission electron microscopy confirmed the presence of plasma-derived exosomes (EXOs) isolated by differential centrifugation...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28727754/dysregulation-of-endothelial-colony-forming-cell-function-by-a-negative-feedback-loop-of-circulating-mir-146a-and-146b-in-cardiovascular-disease-patients
#8
Ting-Yu Chang, Wei-Chi Tsai, Tse-Shun Huang, Shu-Han Su, Chih-Young Chang, Hsiu-Yen Ma, Chun-Hsien Wu, Chih-Yung Yang, Chi-Hung Lin, Po-Hsun Huang, Cheng-Chung Cheng, Shu-Meng Cheng, Hsei-Wei Wang
Functional impairment of endothelial colony-forming cells (ECFCs), a specific cell lineage of endothelial progenitor cells (EPCs) is highly associated with the severity of coronary artery disease (CAD), the most common type of cardiovascular disease (CVD). Emerging evidence show that circulating microRNAs (miRNAs) in CAD patients' body fluid hold a great potential as biomarkers. However, our knowledge of the role of circulating miRNA in regulating the function of ECFCs and the progression of CAD is still in its infancy...
2017: PloS One
https://www.readbyqxmd.com/read/28727410/exosomes-mediate-epithelium-mesenchyme-crosstalk-in-organ-development
#9
Nan Jiang, Lusai Xiang, Ling He, Guodong Yang, Jinxuan Zheng, Chenglin Wang, Yimei Zhang, Sainan Wang, Yue Zhou, Tzong-Jen Sheu, Jiaqian Wu, Kenian Chen, Paulo G Coelho, Nicky M Tovar, Shin Hye Kim, Mo Chen, Yan-Heng Zhou, Jeremy J Mao
Organ development requires complex signaling by cells in different tissues. Epithelium and mesenchyme interactions are crucial for the development of the skin, hair follicles, kidney, lungs, prostate, major glands and the teeth. Despite myriad literature on cell-cell interactions and ligand-receptor binding, the roles extracellular vesicles in epithelium-mesenchyme interactions during organogenesis are poorly understood. Here, we discovered that ~100 nm exosomes were secreted by the epithelium and mesenchyme of a developing tooth organ, and diffused through the basement membrane...
July 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28727188/mir-21-a-key-player-in-glioblastoma-pathogenesis
#10
Mohammad Sadegh Masoudi, Emadodin Mehrabian, Hamed Mirzaei
Glioblastoma multiform (GBM) is one of common cancers worldwide which has high rate among various populations. Despite serious efforts worldwide, GBM remains a deadly disease which is associated with poor prognosis. Multiple lines evidence indicated that deregulation of a variety of cellular and molecular pathways are related with GBM pathogenesis. Among of various targets involved in GBM pathogenesis, microRNAs (miRNAs) have been emerged as targets which deregulation of them are related with various stages of GBM...
July 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28711597/micrornas-and-extracellular-vesicles-in-cholangiopathies
#11
REVIEW
P Olaizola, P Y Lee-Law, A Arbelaiz, A Lapitz, M J Perugorria, L Bujanda, J M Banales
Cholangiopathies encompass a heterogeneous group of disorders affecting biliary epithelial cells (i.e. cholangiocytes). Early diagnosis, prognosis and treatment still remain clinically challenging for most of these diseases and are critical for adequate patient care. In the past decade, extensive research has emphasized microRNAs (miRs) as potential non-invasive biomarkers and tools to accurately identify, predict and treat cholangiopathies. MiRs can be released extracellularly conjugated with lipoproteins or encapsulated in extracellular vesicles (EVs)...
July 12, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28710412/exosomes-derived-from-pancreatic-cancer-cells-induce-insulin-resistance-in-c2c12-myotube-cells-through-the-pi3k-akt-foxo1-pathway
#12
Lantian Wang, Bo Zhang, Wen Zheng, Muxing Kang, Qing Chen, Wenjie Qin, Chao Li, Yuefeng Zhang, Yingkuan Shao, Yulian Wu
Prospective epidemiological studies have consistently suggested that pancreatic cancer-associated new-onset diabetes mellitus (PC-DM) represents a potential platform for early diagnose of pancreatic cancer (PC). Despite the studies performed, the mechanism behind this phenomenon remains ambiguous. In this study, we explored the effects of two types of exosomes released by murine pancreatic cancer and ductal epithelial cells on murine skeletal muscle cells. The results show that PC-derived exosomes can readily enter C2C12 myotubes, triggering lipidosis and glucose intake inhibition...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710381/evaluation-and-diagnostic-potential-of-circulating-extracellular-vesicle-associated-micrornas-in-adrenocortical-tumors
#13
Pál Perge, Henriett Butz, Raffaele Pezzani, Irina Bancos, Zoltán Nagy, Krisztina Pálóczi, Gábor Nyírő, Ábel Decmann, Erna Pap, Michaela Luconi, Massimo Mannelli, Edit I Buzás, Miklós Tóth, Marco Boscaro, Attila Patócs, Peter Igaz
There is no available blood marker for the preoperative diagnosis of adrenocortical malignancy. The objective of this study was to investigate the expression of extracellular vesicle-associated microRNAs and their diagnostic potential in plasma samples of patients suffering from adrenocortical tumors. Extracellular vesicles were isolated either by using Total Exosome Isolation Kit or by differential centrifugation/ultracentrifugation. Preoperative plasma extracellular vesicle samples of 6 adrenocortical adenomas (ACA) and 6 histologically verified adrenocortical cancer (ACC) were first screened by Taqman Human Microarray A-cards...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28709644/horizontal-transfer-of-mir-106a-b-from-cisplatin-resistant-hepatocarcinoma-cells-can-alter-the-sensitivity-of-cervical-cancer-cells-to-cisplatin
#14
Grace R Raji, T V Sruthi, Lincy Edatt, K Haritha, S Sharath Shankar, V B Sameer Kumar
Recent studies indicate that horizontal transfer of genetic material can act as a communication tool between heterogenous populations of tumour cells, thus altering the chemosensitivity of tumour cells. The present study was designed to check whether the horizontal transfer of miRNAs released by cisplatin resistant (Cp-r) Hepatocarcinoma cells can alter the sensitivity of cervical cancer cells. For this exosomes secreted by cisplatin resistant and cisplatin sensitive HepG2 cells (EXres and EXsen) were isolated and characterised...
July 11, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28699397/glioblastoma-exosomes-for-therapeutic-angiogenesis-in-peripheral-ischemia
#15
Anthony Monteforte, Brian Lam, Michael B Sherman, Kayla Henderson, Andrew Sligar, Adrianne Spencer, Brian Tang, Andrew Dunn, Aaron B Baker
Peripheral ischemia as a result of occlusive vascular disease is a widespread problem in patients over the age of 65. Angiogenic therapies that can induce microvascular growth have great potential for providing a long lasting solution for patients with ischemia and would provide and an appealing alternative to surgical and percutaneous interventions. However, many angiogenic therapies have seen poor efficacy in clinical trials, suggesting that patients with long term peripheral ischemia have considerable therapeutic resistance to angiogenic stimuli...
July 12, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28694015/predicting-treatment-resistance-and-relapse-through-circulating-dna
#16
Emma Beddowes, Stephen J Sammut, Meiling Gao, Carlos Caldas
The use of circulating DNA(ctDNA) to provide a non-invasive, personalised genomic snapshot of a patients' tumour has huge potential. Over the past five years this area of research has gained huge momentum. A number of studies in metastatic breast cancer have shown the potential of ctDNA to predict prognosis and treatment response using ctDNA. Further developments have included deeper sequencing using whole exome and shallow whole genome approaches which has the potential to identify new mutations and chromosomal copy number changes which appear upon resistance to treatment...
July 7, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28688231/exosomes-of-invasive-urothelial-carcinoma-cells-are-characterized-by-a-specific-mirna-expression-signature
#17
Sophie Baumgart, Sebastian Hölters, Carsten-Henning Ohlmann, Rainer Bohle, Michael Stöckle, Marie Stampe Ostenfeld, Lars Dyrskjøt, Kerstin Junker, Joana Heinzelmann
Muscle-invasive bladder cancer (MIBC) represents a highly aggressive tumor type compared to non-muscle-invasive tumors. MIBC is characterized by specific molecular alterations, which may also modulate extracellular tumorigenic effects. Tumor-associated exosomes, especially exosomal miRNAs, are important regulators in the interaction between tumor cells and tumor microenvironment by affecting tumor-promoting processes in target cells. It is important to analyze whether their exosomal patterns also reflect the specific molecular characteristics of MIBC...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28684402/braf-v600-inhibition-alters-the-microrna-cargo-in-the-vesicular-secretome-of-malignant-melanoma-cells
#18
Taral R Lunavat, Lesley Cheng, Berglind O Einarsdottir, Roger Olofsson Bagge, Somsundar Veppil Muralidharan, Robyn A Sharples, Cecilia Lässer, Yong Song Gho, Andrew F Hill, Jonas A Nilsson, Jan Lötvall
The BRAF inhibitors vemurafenib and dabrafenib can be used to treat patients with metastatic melanomas harboring BRAF(V600) mutations. Initial antitumoral responses are often seen, but drug-resistant clones with reactivation of the MEK-ERK pathway soon appear. Recently, the secretome of tumor-derived extracellular vesicles (EVs) has been ascribed important functions in cancers. To elucidate the possible functions of EVs in BRAF-mutant melanoma, we determined the RNA content of the EVs, including apoptotic bodies, microvesicles, and exosomes, released from such cancer cells after vemurafenib treatment...
July 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28680477/human-pluripotent-stem-cell-differentiation-to-functional-pancreatic-cells-for-diabetes-therapies-innovations-challenges-and-future-directions
#19
REVIEW
Elena F Jacobson, Emmanuel S Tzanakakis
Recent advances in the expansion and directed pancreatogenic differentiation of human pluripotent stem cells (hPSCs) have intensified efforts to generate functional pancreatic islet cells, especially insulin-secreting β-cells, for cell therapies against diabetes. However, the consistent generation of glucose-responsive insulin-releasing cells remains challenging. In this article, we first present basic concepts of pancreatic organogenesis, which frequently serves as a basis for engineering differentiation regimens...
2017: Journal of Biological Engineering
https://www.readbyqxmd.com/read/28678319/mir-146a-5p-level-in-serum-exosomes-predicts-therapeutic-effect-of-cisplatin-in-non-small-cell-lung-cancer
#20
D-L Yuwen, B-B Sheng, J Liu, W Wenyu, Y-Q Shu
OBJECTIVE: Lung cancer is the most common cause of death in cancer worldwide, and cisplatin plays an important role in its treatment. However, the response to chemotherapy is poorly attributable to drug resistance. Our present study aimed to investigate the relation of the exosomal miR-146a-5p level with the chemosensitivity of NSCLC to cisplatin and the molecular mechanism that miR-146a-5p mediated to effect on chemotherapy response. PATIENTS AND METHODS: The exosomes were isolated by ExoQuick kit...
June 2017: European Review for Medical and Pharmacological Sciences
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