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Exosome mirna

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https://www.readbyqxmd.com/read/28322989/role-of-micrornas-in-endocrine-cancer-metastasis
#1
Cilene Rebouças Lima, Cibele Crastequini Gomes, Marinilce Fagundes Santos
The deregulation of transcription and processing of microRNAs (miRNAs), as well as their function, has been involved in the pathogenesis of several human diseases, including cancer. Despite advances in therapeutic approaches, cancer still represents one of the major health problems worldwide. Cancer metastasis is an aggravating factor in tumor progression, related to increased treatment complexity and a worse prognosis. After more than one decade of extensive studies of miRNAs, the fundamental role of these molecules in cancer progression and metastasis is beginning to be elucidated...
March 18, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28321122/the-emerging-roles-of-tumor-derived-exosomes-in-hematological-malignancies
#2
REVIEW
M Boyiadzis, T L Whiteside
Exosomes are small (30-150 nm) membranous vesicles of endocytic origin produced by all cells under physiological and pathological conditions. They have recently emerged as vehicles for intercellular transfer of molecular and genetic contents from parent to recipient cells. Exosome-mediated transfer of proteins or genes (RNA, miRNA, DNA) results in reprogramming of recipient cell functions. Exosomes carry and deliver information that is essential for health, and they participate in pathological events, including malignant transformation...
March 21, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28317854/sets-of-serum-exosomal-micrornas-as-candidate-diagnostic-biomarkers-for-kawasaki-disease
#3
Hong-Ling Jia, Chao-Wu Liu, Li Zhang, Wei-Jun Xu, Xue-Juan Gao, Jun Bai, Yu-Fen Xu, Ming-Guo Xu, Gong Zhang
Although Kawasaki disease is the main cause of acquired heart disease in children, no diagnostic biomarkers are available. We aimed to identify candidate biomarkers for diagnosing Kawasaki disease using serum exosomal microRNAs (miRNAs). Using frozen serum samples from a biobank, high-throughput microarray technologies, two-stage real-time quantitative PCR, and a self-referencing strategy for data normalization, we narrowed down the list of biomarker candidates to a set of 4 miRNAs. We further validated the diagnostic capabilities of the identified miRNAs (namely, CT(miR-1246)-CT(miR-4436b-5p) and CT(miR-197-3p)-CT(miR-671-5p)) in 79 samples from two hospitals...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303002/reciprocal-regulation-of-%C3%AE-globin-expression-by-exo-mirnas-relevance-to-%C3%AE-globin-silencing-in-%C3%AE-thalassemia-major
#4
Kuo-Ting Sun, Yu-Nan Huang, Kalaiselvi Palanisamy, Shih-Sheng Chang, I-Kuan Wang, Kang-Hsi Wu, Ping Chen, Ching-Tien Peng, Chi-Yuan Li
Induction of fetal hemoglobin (HbF) is a promising strategy in the treatment of β-thalassemia major (β-TM). The present study shows that plasma exosomal miRNAs (exo-miRs) are involved in γ-globin regulation. Exosomes shuttle miRNAs and mediate cell-cell communication. MiRNAs are regulators of biological processes through post-transcriptional targeting. Compared to HD (Healthy Donor), β-TM patients showed increased levels of plasma exosomes and the majority of exosomes had cellular origin from CD34+ cells...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28298297/angiogenic-mechanisms-of-human-cd34-stem-cell-exosomes-in-the-repair-of-ischemic-hindlimb
#5
Prabhu Mathiyalagan, Yaxuan Liang, David Kim, Sol Misener, Tina Thorne, Christine Kamide, Ekaterina Klyachko, Douglas W Losordo, Roger J Hajjar, Susmita Sahoo
Rationale: Paracrine secretions appear to mediate therapeutic effects of human CD34(+) stem cells locally transplanted in patients with myocardial and critical limb ischemia as well as in animal models. Earlier, we had discovered that paracrine secretion from human CD34(+) cells contains pro-angiogenic, membrane-bound nano-vesicles called exosomes (CD34Exo). Objective: Here, we investigated the mechanisms of CD34Exo-mediated ischemic tissue repair and therapeutic angiogenesis by studying their miRNA content and uptake...
March 15, 2017: Circulation Research
https://www.readbyqxmd.com/read/28294454/concise-review-msc-derived-exosomes-for-cell-free-therapy
#6
Donald G Phinney, Mark F Pittenger
Mesenchymal stem cell transplantation is undergoing extensive evaluation as a cellular therapy in human clinical trials. Because MSCs are easily isolated and amenable to culture expansion in vitro there is a natural desire to test MSCs in many diverse clinical indications. This is exemplified by the rapidly expanding literature base that includes many in vivo animal models. More recently, MSC-derived extracellular vesicles (EVs), which include exosomes and microvesicles (MV), are being examined for their role in MSC-based cellular therapy...
March 10, 2017: Stem Cells
https://www.readbyqxmd.com/read/28289400/increased-circulating-exosomal-mirna-223-is-associated-with-acute-ischemic-stroke
#7
Yajing Chen, Yaying Song, Jun Huang, Meijie Qu, Yu Zhang, Jieli Geng, Zhijun Zhang, Jianrong Liu, Guo-Yuan Yang
Recent studies have demonstrated that exosomal microRNAs (miRNAs) are novel biomarkers and therapeutic targets for various diseases including vascular disease. However, specific exosomal miRNAs expression in stroke patients has not been reported yet. Here, we explored whether circulating exosomal miRNAs can serve as potential biomarkers for the diagnosis of acute ischemic stroke and discussed the potential for clinical application. Blood samples were collected from acute ischemic stroke patients within the first 72 h (n = 50)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28288874/loss-of-exosomal-mir-320a-from-cancer-associated-fibroblasts-contributes-to-hcc-proliferation-and-metastasis
#8
Zhuochao Zhang, Xiao Li, Wei Sun, Shuqiang Yue, Jingyue Yang, Junjie Li, Ben Ma, Jianlin Wang, Xisheng Yang, Meng Pu, Bai Ruan, Ge Zhao, Qike Huang, Lin Wang, Kaishan Tao, Kefeng Dou
Cancer-associated fibroblasts (CAFs) play a pivotal role in regulating tumour progression. Therefore, understanding how CAFs communicate with hepatocellular carcinoma (HCC) is crucial for HCC therapy. Recently, exosomes have been considered an important "messenger" between cells. In this study, we performed microRNA (miRNA) sequencing of exosomes derived from CAFs and corresponding para-cancer fibroblasts (PAFs) of HCC patients. We found a significant reduction in the miR-320a level in CAF-derived exosomes...
March 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28288782/exosomes-a-new-horizon-in-lung-cancer
#9
REVIEW
Irene Vanni, Angela Alama, Francesco Grossi, Maria Giovanna Dal Bello, Simona Coco
Circulating exosomes are the major mediators of cell-cell communication. They have been found in various body fluids of healthy individuals and patients with malignancies as cargos of several molecules including miRNAs. Several studies have underlined the role of exosome miRNAs in different tumor types, including lung cancer, suggesting their potential use as biomarkers and therapeutic agents. An overview of the biology and function of exosomes and exosome miRNAs as indicators of diagnosis and treatment response in lung cancer is presented...
March 10, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28277300/exosomal-mir-34s-panel-as-potential-novel-diagnostic-and-prognostic-biomarker-in-patients-with-hepatoblastoma
#10
Chenwei Jiao, Xiaohu Jiao, Anzhi Zhu, Juntao Ge, Xiaoqing Xu
PURPOSE: The aim of this study is to identify the diagnostic values of serum exosomal miRNA-34s of patients with HB in a large Asian group and explore the prognostic value of the exosomal miRNA-34s panel compared with other risk factors. METHODS: We retrospectively reviewed 89 children with HB. Among these patients, 63 patients were included as training group to build the diagnostic model for HB. 26 patients were defined as the validation group. The expressions of miRNA-34s were detected by real-time PCR...
October 14, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28274991/macrophage-derived-apoptotic-bodies-promote-the-proliferation-of-the-recipient-cells-via-shuttling-microrna-221-222
#11
Ziwen Zhu, Duo Zhang, Heedoo Lee, Aravind Ajakumar Menon, Jingxuan Wu, Kebin Hu, Yang Jin
Bacterial pneumonia is a common and serious clinical entity. Alveolar epithelial cells and alveolar macrophages are the first line of defense in the innate immunity against bacterial pathogens. Epithelial cells are known to release chemokines/cytokines that recruit and activate phagocytic cells. However, the signals sent from alveolar macrophages back to the lung epithelial cells remain largely unexplored. We found that LPS, a well-recognized stimulator derived from gram-negative (G(-)) bacteria, rapidly and robustly induces the secretion of macrophage-derived extracellular vesicles (EVs)...
March 8, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28271982/hepatic-mir-301a-as-a-liver-transplant-rejection-biomarker-and-its-role-for-interleukin-6-production-in-hepatocytes
#12
Toshiaki Nakano, I-Hsuan Chen, Shigeru Goto, Chia-Yun Lai, Hui-Peng Tseng, Li-Wen Hsu, King-Wah Chiu, Chih-Che Lin, Chih-Chi Wang, Yu-Fan Cheng, Chao-Long Chen
Acute rejection (AR) of liver transplantation remains a formidable challenge for diagnostic medicine and biomarker discovery. We characterized AR-related microRNAs (miRNAs) and the underlying AR mechanisms in liver transplantation. Using a rat model of orthotopic liver transplantation (OLT) as well as microarrays, we compared the miRNA expression profiles between naive and AR livers on day 7 after OLT with short- (<14 days, donor Dark Agouti [DA] liver into Lewis [LEW] recipient) and long-term (>60 days, donor DA liver into Piebald Virol Glaxo [PVG] recipient) survival fates...
January 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28264626/quantitative-changes-in-the-protein-and-mirna-cargo-of-plasma-exosome-like-vesicles-after-exposure-to-ionizing-radiation
#13
Ramesh Yentrapalli, Juliane Merl-Pham, Omid Azimzadeh, Lisa Mutschelknaus, Carsten Peters, Stefanie M Hauck, Michael J Atkinson, Soile Tapio, Simone Moertl
PURPOSE: Multiple cell types secrete exosome-like extracellular vesicles (ELVs) to the extracellular environment. Pathological conditions can produce characteristic changes to the vesicle cargo. We investigated if ionizing radiation is capable of inducing changes in the protein and microRNA (miRNA) cargo of ELVs. MATERIALS AND METHODS: Whole blood samples from healthy donors were irradiated with 2 Gy gamma rays and then peripheral blood mononuclear cells and plasma were separated from residual blood and co-cultivated for 24 h...
March 7, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28259929/expression-profiles-and-circulation-dynamics-of-rat-mesenteric-lymph-micrornas
#14
Wakako Sakamoto, Tomohiko Masuno, Hiroyuki Yokota, Toshihiro Takizawa
Mesenteric lymph is vital for immune cell trafficking and intestinal fluid and chyle transport, which aid homeostatic maintenance. There have been few reports investigating the profiles and circulatory dynamics of mesenteric lymph microRNAs (miRNAs). The present study aimed to provide a comprehensive analysis of miRNAs in normal rodent mesenteric lymph. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR)‑based array analysis was performed to examine the expression levels of 375 miRNAs in normal rat mesenteric lymph...
February 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28253991/micrornas-as-peripheral-biomarkers-in-aging-and-age-related-diseases
#15
S Kumar, M Vijayan, J S Bhatti, P H Reddy
MicroRNAs (miRNAs) are found in the circulatory biofluids considering the important molecules for biomarker study in aging and age-related diseases. Blood or blood components (serum/plasma) are primary sources of circulatory miRNAs and can release these in cell-free form either bound with some protein components or encapsulated with microvesicle particles, called exosomes. miRNAs are quite stable in the peripheral circulation and can be detected by high-throughput techniques like qRT-PCR, microarray, and sequencing...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28250732/emerging-potential-of-exosomes-for-treatment-of-traumatic-brain-injury
#16
REVIEW
Ye Xiong, Asim Mahmood, Michael Chopp
Traumatic brain injury (TBI) is one of the major causes of death and disability worldwide. No effective treatment has been identified from clinical trials. Compelling evidence exists that treatment with mesenchymal stem cells (MSCs) exerts a substantial therapeutic effect after experimental brain injury. In addition to their soluble factors, therapeutic effects of MSCs may be attributed to their generation and release of exosomes. Exosomes are endosomal origin small-membrane nano-sized vesicles generated by almost all cell types...
January 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28246388/serum-microrna-1-and-microrna-133a-levels-reflect-myocardial-steatosis-in-uncomplicated-type-2-diabetes
#17
D de Gonzalo-Calvo, R W van der Meer, L J Rijzewijk, J W A Smit, E Revuelta-Lopez, L Nasarre, J C Escola-Gil, H J Lamb, V Llorente-Cortes
Using in vitro, in vivo and patient-based approaches, we investigated the potential of circulating microRNAs (miRNAs) as surrogate biomarkers of myocardial steatosis, a hallmark of diabetic cardiomyopathy. We analysed the cardiomyocyte-enriched miRNA signature in serum from patients with well-controlled type 2 diabetes and with verified absence of structural heart disease or inducible ischemia, and control volunteers of the same age range and BMI (N = 86), in serum from a high-fat diet-fed murine model, and in exosomes from lipid-loaded HL-1 cardiomyocytes...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28245982/comparative-analysis-of-microrna-and-mrna-expression-profiles-in-cells-and-exosomes-under-toluene-exposure
#18
Jung-Hee Lim, Mi-Kyung Song, Yoon Cho, Woong Kim, Sung Ok Han, Jae-Chun Ryu
Recent studies have illustrated the growing importance of exosomes (small extracellular vesicles) and their constituent microRNAs (miRNAs) in the fields of toxicology and pathology. The mechanism of toxicity of toluene, a highly-prevalent and volatile organic compound, is largely unknown. To examine the role of miRNAs in toluene-induced toxicity, we investigated miRNAs and toluene-induced gene expression in HL-60 human promyelocytic leukemia cells and exosomes using microarrays. A total of 54 miRNAs were differentially expressed in HL-60 cell lines exposed to toluene and exosomes from the cells...
February 27, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28245421/-role-of-exosomal-mirna-in-multiple-myeloma-progression-and-its-possible-mechanism-review
#19
Ya-Zhi Yang, Xiao-Yan Zhang, Qian Wan, Jian Li
Multiple myeloma (MM)is a kind of plasma tumor originated from B cell line. Its incidence ranks in second place of hematopoietic malignancies. Although continued progress was made in treatment of MM,the survival rate and prognosis of MM patients are still not satisfactory. Further understanding of the pathogenesis of MM may provide information to develop new treatment strategies, so as to improve survival rate and ameliorate its prognosis. Many researches have demonstrated that bone marrow microenvironment plays an important role in MM pathogenesis, which regulates the biological properties of MM cells, including migration and proliferation, through miRNA, mRNA and protein contained in the exosomes released from the cells in the tumor microenvironment...
February 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28240776/the-role-of-exosomes-and-mirnas-in-drug-resistance-of-cancer-cells
#20
REVIEW
Duc-Hiep Bach, Ji-Young Hong, Hyen Joo Park, Sang Kook Lee
Chemotherapy, one of the principal approaches for cancer patients, plays a crucial role in controlling tumor progression. Clinically, tumors reveal a satisfactory response following the first exposure to the chemotherapeutic drugs in treatment. However, most tumors sooner or later become resistant to even chemically unrelated anticancer agents after repeated treatment. The reduced drug accumulation in tumor cells is considered one of the significant mechanisms by decreasing drug permeability and/or increasing active efflux (pumping out) of the drugs across the cell membrane...
February 27, 2017: International Journal of Cancer. Journal International du Cancer
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