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Exosome mirna

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https://www.readbyqxmd.com/read/29330775/a-peg-based-method-for-the-isolation-of-urinary-exosomes-and-its-application-in-renal-fibrosis-diagnostics-using-cargo-mir-29c-and-mir-21-analysis
#1
Chun-Yan Lv, Wei-Jun Ding, Yi-Li Wang, Zi-Yi Zhao, Jin-Hui Li, Yan Chen, Jiao Lv
PURPOSE: To assess a new and highly specific, but low-cost, easily performed and suitable for large-scale applications method for renal fibrosis (RF) diagnostics. METHODS: Thirty-five RF and twenty non-RF patients were enrolled in the study. An appropriate polyethylene glycol (PEG) was used to isolate urinary exosomes. The efficiency of isolation process was evaluated by the morphology and size observation, as well as the detection of specific markers (CD63, CD9)...
January 12, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29330297/characterization-and-evidence-of-the-mir-888-cluster-as-a-novel-cancer-network-in-prostate
#2
Tsuyoshi Hasegawa, Garrison Glavich, Mary Pahuski, Aleena M Short, Oliver John Semmes, Lifang Yang, Vitold Galkin, Richard R Drake, Aurora Esquela-Kerscher
Prostate cancer afflicts 1 in 7 men and is the second leading cause of male cancer-related deaths in the United States. MicroRNAs (miRNAs), an extensive class of ~22 nucleotide non-coding RNAs, are often aberrantly expressed in tissues and fluids from prostate cancer patients but the mechanism of how specific miRNAs regulate prostate tumorigenesis and metastasis are poorly understood. Here, miR-888 was identified as a novel prostate factor that promotes proliferation and migration. miR-888 resides within a genomic cluster of 7 miRNA genes (mir-892c, mir-890, mir-888, mir-892a, mir-892b, mir-891b, mir-891a) on human chromosome Xq27...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29328436/role-of-exosomes-and-exosomal-micrornas-in-hepatocellular-carcinoma-potential-in-diagnosis-and-antitumour-treatments-review
#3
Jing-Hua Pan, Hong Zhou, Xiao-Xu Zhao, Hui Ding, Wei Li, Li Qin, Yun-Long Pan
Communication between hepatocellular carcinoma (HCC) cells and their environment is essential for the development and progression of HCC. Exosomes, which are microvesicles secreted by a number of cell types, are carriers of intercellular information and regulate the tumour microenvironment. Studies have demonstrated that exosomes are involved in the communication between HCC cells, endothelial cells and stem cells, and that they serve important roles in the metastasis and invasion, immune evasion and immunotherapy of HCC...
January 11, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29323722/exosomal-mirnas-as-novel-cancer-biomarkers-challenges-and-opportunities
#4
Mahsa Salehi, Mohammadreza Sharifi
A biomarker with high specificity and sensitivity, is a basic requirement for non-invasive cancer diagnosis. Exosomes are a type of lipid bilayer extracellular vesicles (EVs), containing different components, including proteins, lipids, DNA, messenger RNA (mRNA) and non-coding RNAs. Increasing evidence indicates that nucleic acids are protected by exosome lipid membrane. These vesicles are almost released from all cell types, into biological fluids. In cancer, the expression of microRNAs (miRNAs), located in the tumor cell-derived exosomes, is deregulated and it could be led to metastasis and therapy resistance...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29323124/mir-770-suppresses-the-chemo-resistance-and-metastasis-of-triple-negative-breast-cancer-via-direct-targeting-of-stmn1
#5
Yaming Li, Yiran Liang, Yuting Sang, Xiaojin Song, Hanwen Zhang, Ying Liu, Liyu Jiang, Qifeng Yang
Chemo-resistance and metastasis of triple negative breast cancer (TNBC) contributed the most of treatment failure in the clinic. MicroRNAs (miRNAs) have been proved to be involved in many biological processes and diseases. In this study, we aimed to determine the role of miR-770 in the regulation of chemo-resistance and metastasis of TNBC. Clinically, miR-770 was highly expressed in chemo-sensitive tissues and predicted a better prognosis of TNBC. Functionally, ectopic expression of miR-770 suppressed the doxorubicin-resistance of TNBC cell lines via regulation of apoptosis and tumor microenvironment, which was mediated by exosomes...
January 11, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29315763/mir-548a-3p-regulates-inflammatory-response-via-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway-in-rheumatoid-arthritis
#6
Yingliang Wang, Donghua Xu, Shushan Yan, Laixia Zhang, Li Wang, Xiao Cai, Xiaodong Wang, Jibo Wang
Currently published studies have implicated that microRNAs (miRNAs) including exosomes-encapsulated miRNAs play a critical role in rheumatoid arthritis (RA). Previously, we have found that exosomes-encapsulated miR-548a-3p was significantly decreased in serum samples from RA patients by miRNAs microarray analysis. However, little is known of the role of miR-548a-3p in the development and progression of RA. In this study, we aim to investigate the underlying molecular mechanisms of miR-548a-3p in RA, which will provide new insight into understanding the pathogenesis of RA and identifying novel therapeutics targets for this disease...
January 6, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29305855/microglia-derived-extracellular-vesicles-in-alzheimer-s-disease-a-double-edged-sword
#7
REVIEW
Teresa Trotta, Maria Antonietta Panaro, Antonia Cianciulli, Giorgio Mori, Adriana Di Benedetto, Chiara Porro
Extracellular vesicles (EVs), based on their origin or size, can be classified as apoptotic bodies, microvesicles (MVs)/microparticles (MPs), and exosomes. EVs are one of the new emerging modes of communication between cells that are providing new insights into the pathophysiology of several diseases. EVs released from activated or apoptotic cells contain specific proteins (signaling molecules, receptors, integrins, cytokines), bioactive lipids, nucleic acids (mRNA, miRNA, small non coding RNAs, DNA) from their progenitor cells...
January 3, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29299115/extracellular-mir-224-as-a-prognostic-marker-for-clear-cell-renal-cell-carcinoma
#8
Nakanori Fujii, Hiroshi Hirata, Koji Ueno, Junichi Mori, Shintaro Oka, Kosuke Shimizu, Yoshihisa Kawai, Ryo Inoue, Yoshiaki Yamamoto, Hiroaki Matsumoto, Tomoyuki Shimabukuro, Koichi Udoh, Yoshinobu Hoshii, Rajvir Dahiya, Hideyasu Matsuyama
Exosome-miRNAs (exo-miR) have recently been identified as modulators of cancer progression and distant metastasis. We previously found that intracellular miR-224 is up-regulated and significantly related to cancer invasion and metastasis in clear cell renal cell carcinoma (ccRCC). We therefore investigated the role of exosome miR-224 in ccRCC and explored the interaction between intra- and extracellular miR-224 in renal cell carcinoma. To validate the method for isolating exosomes from blood samples or cell culture media, we examined exosome morphology using transmission electron microscope (TEM)...
December 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/29297621/amnion-epithelial-cell-derived-exosomes-restrict-lung-injury-and-enhance-endogenous-lung-repair
#9
Jean L Tan, Sin N Lau, Bryan Leaw, Hong P T Nguyen, Lois A Salamonsen, Mohamed I Saad, Siow T Chan, Dandan Zhu, Mirja Krause, Carla Kim, William Sievert, Euan M Wallace, Rebecca Lim
Idiopathic pulmonary fibrosis (IPF) is characterized by chronic inflammation, severe scarring, and stem cell senescence. Stem cell-based therapies modulate inflammatory and fibrogenic pathways by release of soluble factors. Stem cell-derived extracellular vesicles should be explored as a potential therapy for IPF. Human amnion epithelial cell-derived exosomes (hAEC Exo) were isolated and compared against human lung fibroblasts exosomes. hAEC Exo were assessed as a potential therapy for lung fibrosis. Exosomes were isolated and evaluated for their protein and miRNA cargo...
January 3, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29297241/exosomal-small-rna-sequencing-uncovers-the-microrna-dose-markers-for-power-frequency-electromagnetic-field-exposure
#10
Hualiang Li, Lin Lin, Li Li, Liang Zhou, Ying Zhang, Shuai Hao, Zhenhua Ding
PURPOSE: The potential health risks caused by power frequency electromagnetic field (PFEMF) have led to increasing public health concerns. However, the diagnosis and prognosis remain challenging in determination of exact dose of PFEMF exposure. MATERIALS AND METHODS: Mice were exposed to different magnetic doses of PFEMF for the following isolation of serum exosomes, microRNAs (miRNAs) extraction and small RNA sequencing. After small RNA sequencing, bioinformatic analysis and qRT-PCR validation, serum exosomal miRNA biomarkers were determined...
January 3, 2018: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/29296725/replenishing-exosomes-from-older-bone-marrow-stromal-cells-with-mir-340-inhibits-myeloma-related-angiogenesis
#11
Tomohiro Umezu, Satoshi Imanishi, Kenko Azuma, Chiaki Kobayashi, Seiichiro Yoshizawa, Kazuma Ohyashiki, Junko H Ohyashiki
The study of bone marrow stromal cells (BMSCs) and the exosomes they secrete is considered promising for cancer therapy. However, little is known about the effect of donor age on BMSCs. In the present study, we investigated the therapeutic potential of BMSC exosomes derived from donors of different ages using an in vivo model of hypoxic bone marrow in multiple myeloma (MM). We found that donor age was strongly related to senescent changes in BMSCs. Exosomes derived from young BMSCs significantly inhibited MM-induced angiogenesis in Matrigel plugs...
May 23, 2017: Blood Advances
https://www.readbyqxmd.com/read/29295981/circulating-exosomes-suppress-the-induction-of-regulatory-t-cells-via-let-7i-in-multiple-sclerosis
#12
Kimitoshi Kimura, Hirohiko Hohjoh, Masashi Fukuoka, Wakiro Sato, Shinji Oki, Chiharu Tomi, Hiromi Yamaguchi, Takayuki Kondo, Ryosuke Takahashi, Takashi Yamamura
Multiple sclerosis (MS) is a T cell-mediated autoimmune disease of the central nervous system. Foxp3+ regulatory T (Treg) cells are reduced in frequency and dysfunctional in patients with MS, but the underlying mechanisms of this deficiency are unclear. Here, we show that induction of human IFN-γ-IL-17A-Foxp3+CD4+ T cells is inhibited in the presence of circulating exosomes from patients with MS. The exosomal miRNA profile of patients with MS differs from that of healthy controls, and let-7i, which is markedly increased in patients with MS, suppresses induction of Treg cells by targeting insulin like growth factor 1 receptor (IGF1R) and transforming growth factor beta receptor 1 (TGFBR1)...
January 2, 2018: Nature Communications
https://www.readbyqxmd.com/read/29295476/detection-of-plant-mirnas-abundance-in-human-breast-milk
#13
Anna Lukasik, Iwona Brzozowska, Urszula Zielenkiewicz, Piotr Zielenkiewicz
Breast milk is a natural food and important component of infant nutrition. Apart from the alimentary substances, breast milk contains many important bioactive compounds, including endogenous microRNA molecules (miRNAs). These regulatory molecules were identified in various mammalian biological fluids and were shown to be mostly packed in exosomes. Recently, it was revealed that plant food-derived miRNAs are stably present in human blood and regulate the expression of specific human genes. Since then, the scientific community has focused its efforts on contradicting or confirming this discovery...
December 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29290969/low-plasma-levels-of-mir-101-are-associated-with-tumor-progression-in-gastric-cancer
#14
Taisuke Imamura, Shuhei Komatsu, Daisuke Ichikawa, Mahito Miyamae, Wataru Okajima, Takuma Ohashi, Jun Kiuchi, Keiji Nishibeppu, Toshiyuki Kosuga, Hirotaka Konishi, Atsushi Shiozaki, Kazuma Okamoto, Hitoshi Fujiwara, Eigo Otsuji
Background: Several studies have identified the decreased expression of the tumor suppressor miR-101 in various cancers. In this study, we tested miR-101 as a potential therapeutic target and novel plasma biomarker for gastric cancer (GC). Results: The miR-101 expression level was significantly lower in GC tissues (P = 0.0038) and GC cell lines (P = 0.0238) than in normal gastric mucosa. Both exosomal and plasma miR-101 were significantly downregulated in GC patients compared with healthy volunteers (P = 0...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290800/exosomes-from-human-umbilical-cord-blood-accelerate-cutaneous-wound-healing-through-mir-21-3p-mediated-promotion-of-angiogenesis-and-fibroblast-function
#15
Yin Hu, Shan-Shan Rao, Zhen-Xing Wang, Jia Cao, Yi-Juan Tan, Juan Luo, Hong-Ming Li, Wei-She Zhang, Chun-Yuan Chen, Hui Xie
The application of blood plasma for soft tissue wound healing is receiving much more attention recently. Exosomes are critical paracrine mediators that can be obtained from biological fluids including plasma and be able to induce regenerative effects by transferring bioactive molecules such as microRNAs (miRNAs). This study aimed to investigate the effects of exosomes from human umbilical cord blood plasma (UCB-Exos) on wound healing and to elucidate the underlying mechanism. Methods: UCB-Exos were isolated by ultracentrifugation and subcutaneously injected into full-thickness skin wounds in mice...
2018: Theranostics
https://www.readbyqxmd.com/read/29289420/exosome-and-mesenchymal-stem-cell-cross-talk-in-the-tumor-microenvironment
#16
REVIEW
Theresa L Whiteside
Mesenchymal stem cells (MSCs) are a major component of the tumor microenvironment (TME) and play a key role in promoting tumor progression. The tumor uses exosomes to co-opt MSCs and re-program their functional profile from normally trophic to pro-tumorigenic. These tumor-derived small vesicles called "TEX" carry and deliver a cargo rich in proteins and nucleic acids to MSCs. Upon interactions with surface receptors on MSCs and uptake of the exosome cargo by MSCs, molecular, transcriptional and translational changes occur that convert MSCs into producers of factors that are necessary for tumor growth and that also alter functions of non-tumor cells in the TME...
December 27, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/29288268/identification-and-characterization-of-circular-rnas-as-a-new-class-of-putative-biomarkers-in-diabetes-retinopathy
#17
Shu-Jie Zhang, Xue Chen, Chao-Peng Li, Xiu-Miao Li, Chang Liu, Bai-Hui Liu, Kun Shan, Qin Jiang, Chen Zhao, Biao Yan
Purpose: To reveal the expression profile and clinical significance of circular RNAs (circRNAs) in diabetic retinopathy (DR). Methods: Circular RNA microarrays were performed to identify DR-related circRNAs. Gene ontology (GO) enrichment and KEGG analysis was performed to determine the biologic modules and signaling pathway. TargetScan and miRana program was used to predict circRNA/miRNA interaction. Quantitative PCR assays were performed to detect circRNA expression pattern in clinical samples...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29284398/mechanisms-of-radiation-bystander-and-non-targeted-effects-implications-to-radiation-carcinogenesis-and-radiotherapy
#18
Rasoul Yahyapour, Elahe Motevaseli, Abolhasan Rezaeyan, Hamid Abdollahi, Bagher Farhood, Mohsen Cheki, Masoud Najafi, Vilmar Villa
Knowledge of radiobiology is of paramount importance to be able to grasp and have an in-depth understanding of the consequences of ionizing radiation. One of the most important effects of this physical stressor's interaction to targeted and non-targeted cells, tissues and organs is on the late effects on the development of primary and secondary cancers. Thus, an in-depth understanding of the mechanisms of radiation carcinogenesis remain to be elucidated, and some studies have demonstrated or proposed a role of non-targeted effect in excess risk of cancer incidence...
December 29, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/29282096/exosomal-proteins-as-potential-markers-of-tumor-diagnosis
#19
REVIEW
Aichun Li, Tianbao Zhang, Min Zheng, Yanning Liu, Zhi Chen
Liquid biopsy especially that of exosomes carries tumor-specific molecules and provides useful information during tumor development and progression in "real time." Exosomes are membrane-encapsulated vesicles, constantly released by multiple cells, including cancer cells, in large quantities, and are widely present in body fluids. Tumor exosomes can remodel a tumor-supportive microenvironment via cross-talk with target cells. Recent research has mainly focused on exosomal miRNAs and to a small degree on proteins...
December 27, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29278659/decreased-levels-of-serum-exosomal-mir-638-predict-poor-prognosis-in-hepatocellular-carcinoma
#20
Min Shi, Ye Jiang, Lu Yang, Shushan Yan, Yu-Gang Wang, Xiao-Jie Lu
Currently available studies have implicated that exosome-delivered microRNAs (miRNAs) play crucial roles in human cancer. However, the association of serum exosomal miR-638 and hepatocellular carcinoma (HCC) remains largely unknown. We aim to investigate the expression of exosomal miR-638 in serum of HCC patients and its prognostic role in this deadly disease. Kaplan-Meier and cox regression analyses were used to determine the survival of patients histologically diagnosed with HCC. Reduced levels of exosomal miR-638 in serum samples from patients with HCC were identified by real-time PCR...
December 26, 2017: Journal of Cellular Biochemistry
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