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Exosome mirna

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https://www.readbyqxmd.com/read/28432594/microrna-transfer-between-bone-marrow-adipose-and-multiple-myeloma-cells
#1
REVIEW
Luna Soley, Carolyne Falank, Michaela R Reagan
PURPOSE OF REVIEW: Multiple myeloma remains an incurable disease, largely due to the tumor-supportive role of the bone marrow microenvironment. Bone marrow adipose tissue (BMAT) is one component of the fertile microenvironment which is believed to contribute to myeloma progression and drug resistance, as well as participate in a vicious cycle of osteolysis and tumor growth. RECENT FINDINGS: MicroRNAs (miRNAs) have recently emerged as instrumental regulators of cellular processes that enable the development and dissemination of cancer...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28423620/exosomal-mir-940-maintains-src-mediated-oncogenic-activity-in-cancer-cells-a-possible-role-for-exosomal-disposal-of-tumor-suppressor-mirnas
#2
Mohammed H Rashed, Pinar Kanlikilicer, Cristian Rodriguez-Aguayo, Martin Pichler, Recep Bayraktar, Emine Bayraktar, Cristina Ivan, Justyna Filant, Andreia Silva, Burcu Aslan, Merve Denizli, Rahul Mitra, Bulent Ozpolat, George A Calin, Anil K Sood, Mohamed F Abd-Ellah, Gouda K Helal, Gabriel Lopez Berestein
Exosomes have emerged as important mediators of diverse biological functions including tumor suppression, tumor progression, invasion, immune escape and cell-to-cell communication, through the release of molecules such as mRNAs, miRNAs, and proteins. Here, we identified differentially expressed exosomal miRNAs between normal epithelial ovarian cell line and both resistant and sensitive ovarian cancer (OC) cell lines. We found miR-940 as abundant in exosomes from SKOV3-IP1, HeyA8, and HeyA8-MDR cells. The high expression of miR-940 is associated with better survival in patients with ovarian serous cystadenocarcinoma...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423355/mesenchymal-stem-cells-release-exosomes-that-transfer-mirnas-to-endothelial-cells-and-promote-angiogenesis
#3
Min Gong, Bin Yu, Jingcai Wang, Yigang Wang, Min Liu, Christian Paul, Ronald W Millard, De-Sheng Xiao, Muhammad Ashraf, Meifeng Xu
Mesenchymal stem cells (MSCs) have been found to benefit patients with a variety of ischemic diseases via promoting angiogenesis. It is also well established that exosomes secreted from MSCs deliver bioactive molecules, including microRNAs (miRs) to recipient cells. Therefore, we hypothesized that exosomes secreted from MSCs deliver miRs into endothelial cells and mediate angiogenesis. The pro-angiogenic stimulatory capacity of exosomes was investigated using tube-like structure formation and spheroid-based sprouting of human umbilical vein endothelial cells (HUVECs), and in vivo Matrigel plug assay...
April 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422319/exosomes-transfer-among-different-species-cells-and-mediating-mirnas-delivery
#4
Yueyuan Zhou, Tian Tian, Yanliang Zhu, Doulathunnisa, Feihu Hu, Yuhua Qi, Bo Sun, Zhongdang Xiao
Exosomes, the natural vehicles of intercellular communication, transfer proteins, mRNAs and microRNAs (miRNAs) and mediate many physiological and pathological processes. It is not clear that whether exosomal miRNAs could regulate gene expression across species, though some studies suggest interactions of exosomal miRNAs between cells. In this report, we have isolated exosomes from rat PC12 cells and assessed their internalization by human cancer Hela cells. The internalized exosomes were located in Hela lysosomes...
April 19, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28412904/the-role-of-exosomes-and-exosome-derived-micrornas-in-atherosclerosis
#5
Xinjie Lu
BACKGROUND: Atherosclerosis is the leading cause of death and morbidity throughout industrialized nations, accounting for one-fifth of all deaths globally. Exosomes are bi-lipid membranous vesicles containing protein, lipid and nucleic acid contents that are released from cells via the endolysosomal pathway. Exosomes are derived from several cells including macrophages, dendritic cells, platelets as well as human serum. METHODS: In this review, an overview of recent advances and the evidence for the role exosomes and exosome-derived microRNAs (miRNAs) in atherosclerosis are provided...
April 13, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28411393/global-exosome-transcriptome-profiling-reveals-biomarkers-for-multiple-sclerosis
#6
Igor Selmaj, Maria Cichalewska, Magdalena Namiecinska, Grazyna Galazka, Wojciech Horzelski, Krzysztof W Selmaj, Marcin P Mycko
OBJECTIVE: Accumulating evidence supports a role for exosomes in immune regulation. In this study, we investigated the total circulating exosome transcriptome in relapsing-remitting multiple sclerosis patients (RRMS) and healthy controls (HC). METHODS: Next generation sequencing (NGS) was used to define the global RNA profile of serum exosomes in 19 RRMS patients (9 in relapse, 10 in remission) and 10 HC. We analyzed 5 million reads and over 50,000 transcripts per sample, including a detailed analysis of microRNA (miRNA) differentially expressed in RRMS...
April 15, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28411247/exosomal-microrna-transfer-into-macrophages-mediates-cellular-postconditioning
#7
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/28410618/liquid-biopsy-a-step-forward-towards-precision-medicine-in-urologic-malignancies
#8
REVIEW
Ashley Di Meo, Jenni Bartlett, Yufeng Cheng, Maria D Pasic, George M Yousef
There is a growing trend towards exploring the use of a minimally invasive "liquid biopsy" to identify biomarkers in a number of cancers, including urologic malignancies. Multiple aspects can be assessed in circulating cell-free DNA, including cell-free DNA levels, integrity, methylation and mutations. Other prospective liquid biopsy markers include circulating tumor cells, circulating RNAs (miRNA, lncRNAs and mRNAs), cell-free proteins, peptides and exosomes have also emerged as non-invasive cancer biomarkers...
April 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28408738/identification-of-exosomes-and-its-signature-mirnas-of-male-and-female-cynoglossus-semilaevis
#9
Zhanpeng Sun, Tong Hao, Jinze Tian
Exosomes are small membrane particles which are widely found in various cell lines and physiological fluids in mammalian. MicroRNAs (miRNAs) enclosed in exosomes have been identified as proper signatures for many diseases and response to therapies. However, the composition of exosomes and enclosed miRNAs in fishes has not been investigated. Cynoglossus semilaevis is an important commercial flatfish with ambiguous distinction between males and females before sex maturation, which leads to screening difficulty in reproduction and cultivation...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28407805/revelation-of-mrnas-and-proteins-in-porcine-milk-exosomes-by-transcriptomic-and-proteomic-analysis
#10
Ting Chen, Qian-Yun Xi, Jia-Jie Sun, Rui-Song Ye, Xiao Cheng, Rui-Ping Sun, Song-Bo Wang, Gang Shu, Li-Na Wang, Xiao-Tong Zhu, Qing-Yan Jiang, Yong-Liang Zhang
BACKGROUND: Milk is a complex liquid that provides nutrition to newborns. Recent reports demonstrated that milk is enriched in maternal-derived exosomes that are involved in fetal physiological and pathological conditions by transmission of exosomal mRNAs, miRNAs and proteins. Until now, there is no such research relevant to exosomal mRNAs and proteins in porcine milk, therefore, we have attempted to investigate porcine milk exosomal mRNAs and proteins using RNA-sequencing and proteomic analysis...
April 13, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28407783/exosomal-transfer-of-tumor-associated-macrophage-derived-mir-21-confers-cisplatin-resistance-in-gastric-cancer-cells
#11
Peiming Zheng, Lei Chen, Xiangliang Yuan, Qin Luo, Yi Liu, Guohua Xie, Yanhui Ma, Lisong Shen
BACKGROUND: Cisplatin-based chemotherapy is frequently used to treat advanced gastric cancer (GC). However, the resistance often occurs with the mechanisms being not well understood. Recently, emerging evidence indicates that tumor-associated macrophages (TAMs) play an important role in chemoresistance of cancer. As the important mediators in intercellular communications, exosomes secreted by host cells mediate the exchange of genetic materials and proteins to be involved in tumor aggressiveness...
April 13, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28401565/serum-and-exosomal-mir-122-and-mir-199a-as-a-biomarker-to-predict-therapeutic-efficacy-of-hepatitis-c-patients
#12
Xiaoyang Jiao, Zhicheng Fan, Huanzhu Chen, Ping He, Yazhen Li, Qiaoxin Zhang, Changwen Ke
AIM: MicroRNA (miRNA), which has been shown to correlate with liver functions, has been proposed as a new biomarker reflecting liver injury. The aim of the study was to investigate miRNA -122 (miR-122) and mir-RNA -199a (miR-199a) as a biomarker for predicting therapeutic efficacy in hepatitis C (HepC)patients. METHODS: 47 HepC 1b patients and 16 healthy subjects were enrolled in the study. Serum and exosomal mir-RNAs and other conventional biomarkers reflecting liver function were evaluated...
April 12, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28386521/micrornas-as-biomarkers-for-psychiatric-conditions-a-review-of-current-research
#13
REVIEW
Anoop Narahari, Mariyah Hussain, Venkatesh Sreeram
Neural-derived exosomes can be used as diagnostic markers to screen for various psychiatric conditions. These intravenously injected exosomes carry the potential to cross the blood brain barrier and deliver miRNA molecules specifically to neurons, microglia, and oligodendrocytes in the brain, resulting in specific gene knockdown. Here the authors review and discuss the current research on microRNA molecules and the therapeutic roles they may potentially play in treating depression, bipolar disorder, and schizophrenia...
January 2017: Innovations in Clinical Neuroscience
https://www.readbyqxmd.com/read/28383678/microrna-mediated-dynamic-control-of-mucosal-immunity
#14
Eun Jeong Park, Motomu Shimaoka, Hiroshi Kiyono
The gastrointestinal tract is a complex and important physiological and immunological organ embodying the first line of defense by which mucosal immunity regulates the immense number and diversity of naturally encountered antigens and commensal microflora. Effective microRNA (miRNA) control of transcription factors or mediators in mucosal immunity is essential to host defense and homeostasis in both physiologic and pathologic states. MiRNA biology has advanced our understanding of the immune regulatory system network at the level of post-transcriptional gene modification...
April 5, 2017: International Immunology
https://www.readbyqxmd.com/read/28383146/differential-expression-of-urinary-exosomal-micrornas-in-iga-nephropathy
#15
Qing-Hua Min, Xi-Min Chen, Ye-Qing Zou, Jing Zhang, Jing Li, Yan Wang, Shu-Qi Li, Qiu-Fang Gao, Fan Sun, Jing Liu, Yan-Mei Xu, Jin Lin, Lin-Feng Huang, Bo Huang, Xiao-Zhong Wang
BACKGROUND: Immunoglobulin A nephropathy (IgAN) is the most common type of primary glomerulonephritis in the world. Reliable biomarkers are required for the non-invasive diagnosis and monitoring of IgAN. This study aims to investigate the difference in urinary exosomal microRNA (miRNA) expression profiles between patients with IgA nephropathy (IgAN) and healthy controls, which may provide clues to identify novel potential non-invasive miRNA biomarkers for renal diseases. METHODS: Urine samples were collected from eighteen healthy controls and eighteen patients with IgAN...
April 6, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28382754/cellular-and-extracellular-mirnas-are-blood-compartment-specific-diagnostic-targets-in-sepsis
#16
Marlene Reithmair, Dominik Buschmann, Melanie Märte, Benedikt Kirchner, Daniel Hagl, Ines Kaufmann, Martina Pfob, Alexander Chouker, Ortrud K Steinlein, Michael W Pfaffl, Gustav Schelling
Septic shock is a common medical condition with a mortality approaching 50% where early diagnosis and treatment are of particular importance for patient survival. Novel biomarkers that serve as prompt indicators of sepsis are urgently needed. High-throughput technologies assessing circulating microRNAs represent an important tool for biomarker identification, but the blood-compartment specificity of these miRNAs has not yet been investigated. We characterized miRNA profiles from serum exosomes, total serum and blood cells (leukocytes, erythrocytes, platelets) of sepsis patients by next-generation sequencing and RT-qPCR (n = 3 × 22) and established differences in miRNA expression between blood compartments...
April 6, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28382720/exosomes-derived-from-mir-181-5p-modified-adipose-derived-mesenchymal-stem-cells-prevent-liver-fibrosis-via-autophagy-activation
#17
Ying Qu, Qidi Zhang, Xiaobo Cai, Fei Li, Zhenzeng Ma, Mingyi Xu, Lungen Lu
Proliferating hepatic stellate cells (HSCs) respond to liver damage by secreting collagens that form fibrous scar tissue, which can lead to cirrhosis if in appropriately regulated. Advancement of microRNA (miRNA) hepatic therapies has been hampered by difficulties in delivering miRNA to damaged tissue. However, exosomes secreted by adipose-derived mesenchymal stem cells (ADSCs) can be exploited to deliver miRNAs to HSCs. ADSCs were engineered to overexpress miRNA-181-5p (miR-181-5p-ADSCs) to selectively home exosomes to mouse hepatic stellate (HST-T6) cells or a CCl4-induced liver fibrosis murine model and compared with non-targeting control Caenorhabditis elegans miR-67 (cel-miR-67)-ADSCs...
April 6, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28380431/a-six-microrna-signature-in-plasma-was-identified-as-a-potential-biomarker-in-diagnosis-of-esophageal-squamous-cell-carcinoma
#18
Xin Zhou, Wei Wen, Jun Zhu, Zebo Huang, Lan Zhang, Huo Zhang, Lian-Wen Qi, Xia Shan, Tongshan Wang, Wenfang Cheng, Danxia Zhu, Yin Yin, Yan Chen, Wei Zhu, Yongqian Shu, Ping Liu
The differential expression of microRNAs (miRNAs) in plasma of esophageal squamous cell carcinoma (ESCC) patients may serve as a diagnostic biomarker. A four-stage study was conducted to identify plasma miRNAs with potential in detecting ESCC. Exiqon panels (2 ESCC pools vs. 1 normal control (NC) pool) were applied in the screening phase to obtain miRNA profiles. The identified miRNAs were further evaluated through training (36 ESCC VS. 42 NCs) and testing stages (101 ESCC VS. 113 NCs) with qRT-PCR assays. A six-miRNA signature including up-regulated miR-106a, miR-18a, miR-20b, miR-486-5p, miR-584 and down-regulated miR-223-3p in ESCC was identified...
March 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28380419/clinical-significance-of-circulating-mir-25-3p-as-a-novel-diagnostic-and-prognostic-biomarker-in-osteosarcoma
#19
Tomohiro Fujiwara, Koji Uotani, Aki Yoshida, Takuya Morita, Yutaka Nezu, Eisuke Kobayashi, Akihiko Yoshida, Takenori Uehara, Toshinori Omori, Kazuhisa Sugiu, Tadashi Komatsubara, Ken Takeda, Toshiyuki Kunisada, Machiko Kawamura, Akira Kawai, Takahiro Ochiya, Toshifumi Ozaki
BACKGROUND: Emerging evidence has suggested that circulating microRNAs (miRNAs) in body fluids have novel diagnostic and prognostic significance for patients with malignant diseases. The lack of useful biomarkers is a crucial problem of bone and soft tissue sarcomas; therefore, we investigated the circulating miRNA signature and its clinical relevance in osteosarcoma. METHODS: Global miRNA profiling was performed using patient serum collected from a discovery cohort of osteosarcoma patients and controls and cell culture media...
March 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28380368/brown-fat-derived-exosomes-small-vesicles-with-big-impact
#20
Yong Chen, Alexander Pfeifer
Adipose tissue (AT) not only stores energy, but also secretes hormones and releases small vesicles known as exosomes. Thomou et al. (2017) now show that exosomes secreted by brown fat carry miRNAs that regulate the liver. Thus, AT exosomes might have therapeutic and diagnostic relevance for metabolic disorders.
April 4, 2017: Cell Metabolism
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