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Exosome mirna

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https://www.readbyqxmd.com/read/27913196/nf-kb-regulated-exosomal-mir-155-promotes-the-inflammation-associated-with-arsenite-carcinogenesis
#1
Chao Chen, Fei Luo, Xinlu Liu, Lu Lu, Hui Xu, Qianlei Yang, Junchao Xue, Le Shi, Jun Li, Aihua Zhang, Qizhan Liu
In the cancer microenvironment, extracellular communication allows various types of cells to coordinate and execute biological functions. Emerging evidence indicates that exosomes, as mediators of cell communication, are involved in tumor progression. Little is known, however, about the mechanism by which exosomal miRNAs regulate inflammatory infiltration in arsenite-induced liver cancer. The present research aimed to determine if miRNAs secreted from arsenite-transformed human hepatic epithelial (L-02) cells are transferred into normal L-02 and THLE-3 cells, which are functionally active in the recipient cells...
November 29, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27910046/exosomes-based-gene-therapy-for-microrna-delivery
#2
Prabhu Mathiyalagan, Susmita Sahoo
Despite recent advances in scientific knowledge and clinical practice, cardiovascular disease management and treatment remain a major burden. While several treatment strategies using drugs and surgeries are being developed for cardiovascular manifestations, gene-based therapies hold significant promise. Recent findings from our laboratory unveiled a novel mechanism that exosomes, secreted nanovesicles from stem cells, mediate cardiac repair via transferring their unique repertoire of microRNAs (miRNA) to recipient cells in the heart...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27906035/extracellular-vesicles-in-the-pathogenesis-of-rheumatoid-arthritis-and-osteoarthritis
#3
REVIEW
Joseph Withrow, Cameron Murphy, Yutao Liu, Monte Hunter, Sadanand Fulzele, Mark W Hamrick
Osteoarthritis (OA) and rheumatoid arthritis (RA) are both debilitating diseases that cause significant morbidity in the US population. Extracellular vesicles (EVs), including exosomes and microvesicles, are now recognized to play important roles in cell-to-cell communication by transporting various proteins, microRNAs (miRNAs), and mRNAs. EV-derived proteins and miRNAs impact cell viability and cell differentiation, and are likely to play a prominent role in the pathophysiology of both OA and RA. Some of the processes by which these membrane-bound vesicles can alter joint tissue include extracellular matrix degradation, cell-to-cell communication, modulation of inflammation, angiogenesis, and antigen presentation...
December 1, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27905554/increased-plasma-vegf-levels-following-ischemic-preconditioning-are-associated-with-downregulation-of-mirna-762-and-mir-3072-5p
#4
Koji Ueno, Makoto Samura, Tamami Nakamura, Yuya Tanaka, Yuriko Takeuchi, Daichi Kawamura, Masaya Takahashi, Tohru Hosoyama, Noriyasu Morikage, Kimikazu Hamano
Ischemic preconditioning (IPC) has protective effects against ischemia-perfusion injury of organs. In the present study, we investigated the associated mechanisms after performing remote IPC (rIPC) of lower limbs by clamping abdominal aorta in mice. Subsequent experiments showed decreased damage and paralysis of lower limbs following spinal cord injury (SCI). Concomitantly, plasma vascular endothelial growth factor (VEGF) levels were increased 24 h after rIPC compared with those in sham-operated animals. In subsequent microRNA analyses, thirteen microRNAs were downregulated in exosomes 24 h after rIPC...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27899750/circulating-micrornas-as-novel-biomarkers-of-stenosis-progression-in-asymptomatic-carotid-stenosis
#5
Sandra Dolz, David Górriz, José Ignacio Tembl, Dolors Sánchez, Gerardo Fortea, Vera Parkhutik, Aida Lago
BACKGROUND AND PURPOSE: Progression of asymptomatic carotid artery stenosis (ACAS) in patients with >50% luminal narrowing is considered a potential risk factor for ischemic stroke; however, subclinical molecular biomarkers of ACAS progression are lacking. Recent studies suggest a regulatory function for several microRNAs (miRNAs) on the evolution of carotid plaque, but its role in ACAS progression is mostly unknown. The aim of our study was to investigate a wide miRNA panel in peripheral blood exosomes from patients with ACAS to associate circulating miRNA expression profiles with stenosis progression...
November 29, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27890076/dirofilaria-immitis-exhibits-sex-and-stage-specific-differences-in-excretory-secretory-mirna-and-protein-profiles
#6
Lucienne Tritten, Damian Clarke, Scott Timmins, Tom McTier, Timothy G Geary
The canine heartworm Dirofilaria immitis releases excretory/secretory molecules into its host and in culture. We report analyses of the types, amounts and stage-dependence of microRNAs and proteins found in D. immitis culture media recovered after incubating 800,000 microfilariae for 6days, 500L3 and 500L4 for 7days, as well as 40 adult females and 40 adult males for 48h, all separately. In addition, the presence of exosome-like particles was established by nanoparticle tracking analysis. Our results are in concordance with the D...
December 15, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27882942/emerging-roles-of-extracellular-vesicles-in-neurodegenerative-disorders-focus-on-hiv-associated-neurological-complications
#7
REVIEW
Guoku Hu, Lu Yang, Yu Cai, Fang Niu, Frank Mezzacappa, Shannon Callen, Howard S Fox, Shilpa Buch
Exosomes are membrane-enriched extracellular vesicles with a proposed diameter in the range of 30-100 nm. They are released during both normal homeostasis as well as under pathological conditions by most cell types. In recent years, there has been robust interest in the study of these vesicles as conduits for the delivery of information between cells in both analogous as well as disparate tissues. Their ability to transport specialized cargo including signaling mediators, proteins, messenger RNA and miRNAs characterizes these vesicles as primary facilitators of cell-to-cell communication and regulation...
November 24, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27881406/enrichment-of-selective-mirnas-in-exosomes-and-delivery-of-exosomal-mirnas-in-vitro-and-in-vivo
#8
Duo Zhang, Heedoo Lee, Ziwen Zhu, Jasleen K Minhas, Yang Jin
Exosomes are nano vesicles secreted by cells, and contain various molecules including protein, lipid and DNA/RNA. They are crucial mediators of the intercellular communication and serve as promising vehicles for drug delivery and gene therapy. Recently, accumulating evidence suggest that microRNAs (miRNAs) may serve as new and potentially powerful targets for therapeutic interventions against various human diseases. However, steadily and effectively delivering miRNA mimics or inhibitors to target cells remains a major obstacle...
November 23, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27873274/functional-analysis-of-exosomes-derived-from-ebv-infected-cells
#9
Gulfaraz Khan, Pretty S Philip
Exosomes are diverse bioactive extracellular nanovesicles excreted by different cell types. These tiny membrane-bound vesicles, once thought to be functionally insignificant, are now believed to be important vehicles for transport and intercellular communication. Exosomes have been shown to contain a broad range of molecules, from miRNAs to proteins to soluble factors. Moreover, an accumulating body of evidence indicates that some viruses can hijack the exosomal excretory pathway to influence the microenvironment surrounding the infected cells...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27872698/the-role-of-exosomes-contents-on-genetic-and-epigenetic-alterations-of-recipient-cancer-cells
#10
REVIEW
Golnoush Dehbashi Behbahani, Soghra Khani, Hamideh Mahmoodzadeh Hosseini, Kazem Abbaszadeh-Goudarzi, Saeed Nazeri
Exosomes, as a mediator of cell-to-cell transfer of genetic information, act an important role in intercommunication between tumor cells and their niche including fibroblasts, endothelial cells, adipocytes and monocytes. Several studies have shown that tumor cells can influence their neighboring cells by releasing exosomes. These exosomes provide signaling cues for stimulation, activation, proliferation and differentiation of cells. Exosomes contain mRNAs, microRNAs (miRNA), and proteins that could be transferred to target cells inducing genetic and epigenetic changes...
October 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27872161/identification-of-urinary-exosomal-non-coding-rnas-as-novel-biomarkers-in-chronic-kidney-disease
#11
Rimpi Khurana, Glory Ranches, Simon Schafferer, Melanie Lukasser, Michael Rudnicki, Gert Mayer, Alexander Hüttenhofer
In chronic kidney disease (CKD), the decline in glomerular filtration rate is associated with increased morbidity and mortality and thus poses a major challenge for healthcare systems. While the contribution of tissue-derived miRNAs and mRNAs to CKD progression has extensively been studied, little is known about the role of urinary exosomes and their association with CKD. Exosomes are small, membrane-derived endocytic vesicles that contribute to cell-to-cell communication and are present in various body fluids, such as blood or urine...
November 21, 2016: RNA
https://www.readbyqxmd.com/read/27864711/mesenchymal-stem-cells-derived-exosomal-micrornas-contribute-to-wound-inflammation
#12
REVIEW
Dongdong Ti, Haojie Hao, Xiaobing Fu, Weidong Han
Clinical and experimental studies have highlighted the significance of inflammation in coordinating wound repair and regeneration. However, it remains challenging to control the inflammatory response and tolerance at systemic levels without causing toxicity to injured tissues. Mesenchymal stem cells (MSCs) possess potent immunomodulatory properties and facilitate tissue repair by releasing exosomes, which generate a suitable microenvironment for inflammatory resolution. Exosomes contain several effective bioactive molecules and act as a cell-cell communication vehicle to influence cellular activities in recipient cells...
November 18, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27853183/exosomes-derived-from-embryonal-and-alveolar-rhabdomyosarcoma-carry-differential-mirna-cargo-and-promote-invasion-of-recipient-fibroblasts
#13
Sandra E Ghayad, Ghina Rammal, Farah Ghamloush, Hussein Basma, Rihab Nasr, Mona Diab-Assaf, Claude Chelala, Raya Saab
Rhabdomyosarcoma (RMS) is an aggressive childhood soft tissue tumor, which exists in oncoprotein PAX-FOXO1 fusion positive and fusion negative subtypes, with the fusion-positive RMS being characterized by a more aggressive clinical behavior. Exosomes are small membranous vesicles secreted into body fluids by multiple cell types, including tumor cells, and have been implicated in metastatic progression through paracrine signaling. We characterized exosomes secreted by a panel of 5 RMS cell lines. Expression array analysis showed that, for both fusion-positive and fusion-negative cells, exosome miRNA clustered well together and to a higher extent than cellular miRNA...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27835864/senescent-stromal-cell-induced-divergence-and-therapeutic-resistance-in-t-cell-acute-lymphoblastic-leukemia-lymphoma
#14
David M Habiel, Nicolas Krepostman, Michael Lilly, Karen Cavassani, Ana Lucia Coelho, Takehiko Shibata, Kojo Elenitoba-Johnson, Cory M Hogaboam
T cell Acute Lymphoblastic Leukemia/Lymphoma (T-ALL/LBL) is a precursor T cell leukemia/lymphoma that represents approximately 15% of all childhood and 25% of adult acute lymphoblastic leukemia. Although a high cure rate is observed in children, therapy resistance is often observed in adults and mechanisms leading to this resistance remain elusive. Utilizing public gene expression datasets, a fibrotic signature was detected in T-LBL but not T-ALL biopsies. Further, using a T-ALL cell line, CCRF-CEM (CEM) cells, we show that CEM cells induce pulmonary remodeling in immunocompromised mice, suggesting potential interaction between these cells and lung fibroblasts...
November 7, 2016: Oncotarget
https://www.readbyqxmd.com/read/27834360/glioblastoma-exosome-and-microrna-as-novel-diagnosis-biomarkers
#15
REVIEW
L Saadatpour, E Fadaee, S Fadaei, R Nassiri Mansour, M Mohammadi, S M Mousavi, M Goodarzi, J Verdi, H Mirzaei
Glioblastoma (GBM) is known as a tumor type, which arises from astrocytes. Several studies indicated that GBM tumor cells are malignant. This is because of the fact that they consist of different cell types, which are reproducing very quickly and are also supported by a large network of blood vessels. The correct identification of various stages of GBM could help to better treat the patients with this disease. Therefore, new biomarkers such as exosomes and microRNAs (miRNAs) may help us to learn more about GBM and they may also lead to a more effective treatment for patients with GBM...
November 11, 2016: Cancer Gene Therapy
https://www.readbyqxmd.com/read/27829441/characterization-of-exosomal-release-in-bovine-endometrial-intercaruncular-stromal-cells
#16
Yong Qin Koh, Hassendrini N Peiris, Kanchan Vaswani, Sarah Reed, Gregory E Rice, Carlos Salomon, Murray D Mitchell
BACKGROUND: Cell-to-cell communication between the blastocyst and endometrium is critical for implantation. In recent years, evidence has emerged from studies in humans and several other animal species that exosomes are secreted from the endometrium and trophoblast cells and may play an important role in cell-to-cell communication maternal-fetal interface during early pregnancy. Exosomes are stable extracellular lipid bilayer vesicles that encapsulate proteins, miRNAs, and mRNAs, with the ability to deliver their cargo to near and distant sites, altering cellular function(s)...
November 9, 2016: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/27826926/analysis-of-the-distribution-profiles-of-circulating-micrornas-by-asymmetrical-flow-field-flow-fractionation
#17
Kenneth Flack, Luis A Jimenez, Wenwan Zhong
MicroRNAs (miRNAs) are stably present in circulatory systems. They are bound to various carriers like proteins, lipoprotein particles, and exosomes. Investigating the process of miRNA distribution among these carriers will help improve our understanding of their functions in the extracellular environment and their potential relationship with diseases. Here, we describe how to obtain the distribution profiles of circulating miRNAs by separation of different miRNA carriers in human serum with asymmetrical flow field flow fractionation (AF4), and detection of the miRNAs in the eluted fractions that enrich particular types of carriers with RT-qPCR...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27826921/exosomal-microrna-discovery-in-age-related-macular-degeneration
#18
Hanan Elshelmani, Sweta Rani
Age-related macular degeneration (AMD) is a common condition causing progressive visual impairment, leading to irreversible blindness. Existing diagnostic tools for AMD are limited to clinical signs in the macula and the visual assessment of the patient. The presence of circulating microRNAs (miRNAs) in the peripheral circulatory system with potential as diagnostic, prognostic and/or predictive biomarkers has been reported in a number of conditions/diseases. miRNAs are key regulators of several biological processes, and miRNA dysregulation has been linked with numerous diseases, most remarkably cancer...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27826529/exosomes-genetic-cargo-in-lung-cancer-a-truly-pandora-s-box
#19
REVIEW
Pablo Reclusa, Rafael Sirera, Antonio Araujo, Marco Giallombardo, Anna Valentino, Laure Sorber, Ignacio Gil Bazo, Patrick Pauwels, Christian Rolfo
Lung cancer is a highly lethal disease. Targeted therapies have been developed in last years, however survival rates are not improving due to the delay in the diagnosis, making biomarkers one of the most interesting fields of study in cancer. Liquid biopsy has raised as an alternative to tissue biopsy due to improvements in analytical techniques for circulating tumor cells (CTCs), cell free DNA and exosomes. Among all, exosomes have raised as one of the most promising tools to understand the tumor due to their stability in the blood and their similarity to the cells of origin...
October 2016: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/27822407/exosomes-mediate-micrornas-transfer-in-breast-cancer-chemoresistance-regulation
#20
REVIEW
Juliana Carvalho Santos, Marcelo Lima Ribeiro, Luis Otávio Sarian, Manoela Marques Ortega, Sophie Françoise Derchain
Breast cancer is the most common and fatal type of cancer in women worldwide due to the metastatic process and resistance to treatment. Despite advances in molecular knowledge, little is known regarding resistance to chemotherapy. One highlighted aspect is the DNA damage response (DDR) pathway that is activated upon genotoxic damage, controlling the cell cycle arrest or DNA repair activation. Recently, studies have showed that cancer stem cells (CSCs) could promote chemoresistance through DDR pathway. Furthermore, it is known that the epithelial-mesenchymal transition (EMT) can generate cells with CSCs characteristics and therefore regulate the chemoresistance process...
2016: American Journal of Cancer Research
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