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Exosomes and lung

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https://www.readbyqxmd.com/read/28328650/exosomes-in-critical-illness
#1
Nora Terrasini, Vincenzo Lionetti
OBJECTIVE: Exosomes are small, cell-released vesicles (40-100 nm in size) with the potential to transfer proteins, lipids, small RNAs, messenger RNAs, or DNA between cells via interstitial fluids. Due to their role in tissue homeostasis, exosomes have emerged as a new type of therapeutic and diagnostic (theranostic) tool in the noninvasive assessment of organ response to injury or treatment and in the development of reliable organ-protective intensive therapy. Our review provides current insights into the role of exosomes in the personalized management of injury and repair responses in critical illness...
March 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28324860/direct-detection-of-two-different-tumor-derived-extracellular-vesicles-by-sam-aunis-lspr-biosensor
#2
Abhimanyu Thakur, Guangyu Qiu, Siu-Pang Ng, Jintao Guan, Jianbo Yue, Youngjin Lee, Chi-Man Lawrence Wu
Extracellular vesicles (EVs) are abundant in various biological fluids including blood, saliva, urine, as well as extracellular milieu. Accumulating evidence has indicated that EVs, which contain functional proteins and small RNAs, facilitate intercellular communication between neighbouring cells, and are critical to maintain various physiological processes. In contrast, EV-derived toxic signals can spread out over the tissues adjacent to the injured area in certain diseases, including brain tumors and neurodegenerative disorders...
March 18, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28300659/milk-derived-exosomes-for-oral-delivery-of-paclitaxel
#3
Ashish K Agrawal, Farrukh Aqil, Jeyaprakash Jeyabalan, Wendy A Spencer, Joshua Beck, Beth W Gachuki, Sara S Alhakeem, Karine Oben, Radha Munagala, Subbarao Bondada, Ramesh C Gupta
In this report milk-derived exosomes have been investigated for oral delivery of the chemotherapeutic drug paclitaxel (PAC) as an alternative to conventional i.v. therapy for improved efficacy and reduced toxicity. PAC-loaded exosomes (ExoPAC) were found to have a particle size of ~108nm, a narrow particle size distribution (PDI ~0.190), zeta potential (~ -7mV) and a practical loading efficiency of ~8%. Exosomes and ExoPAC exhibited excellent stability in the presence of simulated-gastrointestinal fluids, and during the storage at -80°C...
March 11, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28295010/-deported-syncytiotrophoblast-and-placental-microparticles-in-the-mother-s-body-during-normal-pregnancy-and-preeclampsia-28-years-later
#4
A P Milovanov, I N Voloshchuk
Over the last 25 years, there has been new evidence for the need to systematize deported placental cells, by identifying 3 groups according to their size, blocking or passing the pulmonary capillaries. In group 1, deported syncytiotrophoblast is a viable multinucleated complexes 100 to 20 µm in diameter. Their common cytoplasm displays β-hCG immunoexpression. After apoptosis of these cells in the lung capillaries, placental bioproducts directly interact with endothelial cell receptors, by contributing to the gestational rearrangement of the woman's body...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28288782/exosomes-a-new-horizon-in-lung-cancer
#5
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/28275630/donor-derived-exosomes-key-in-lung-allograft-rejection
#6
COMMENT
Javier Perez-Hernandez, Raquel Cortes
No abstract text is available yet for this article.
February 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28274991/macrophage-derived-apoptotic-bodies-promote-the-proliferation-of-the-recipient-cells-via-shuttling-microrna-221-222
#7
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/28267596/extracellular-vesicles-in-lung-cancer-from-bench-to-bedside
#8
REVIEW
Tsukasa Kadota, Yusuke Yoshioka, Yu Fujita, Kazuyoshi Kuwano, Takahiro Ochiya
Lung cancer is the leading cause of cancer-related deaths worldwide. Despite significant advances in lung cancer research and novel therapies, a better understanding of the disease is crucially needed to facilitate early detection and appropriate diagnoses and to improve treatment outcomes. Extracellular vesicles (EVs), including exosomes, microvesicles, and apoptotic bodies, are released from all tested cell types and modulate cell-cell communication. EVs transfer a wide variety of molecules, such as proteins, messenger RNAs and microRNAs...
March 4, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28259929/expression-profiles-and-circulation-dynamics-of-rat-mesenteric-lymph-micrornas
#9
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/28202351/exosomal-formulation-of-anthocyanidins-against-multiple-cancer-types
#10
Radha Munagala, Farrukh Aqil, Jeyaprakash Jeyabalan, Ashish K Agrawal, Ashley M Mudd, Al Hassan Kyakulaga, Inder P Singh, Manicka V Vadhanam, Ramesh C Gupta
Over the last two decades, berries and berry bioactives, particularly anthocyanins and their aglycones anthocyanidins (Anthos) have demonstrated excellent anti-oxidant, anti-proliferative, apoptotic and anti-inflammatory properties. However, their physicochemical and pharmacokinetic limitations such as, low permeability, and poor oral bioavailability are considered as unfavorable properties for development as drugs. Therefore there is a need to develop systems for efficient systemic delivery and robust bioavailability...
February 12, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28178672/comparative-analysis-of-microrna-expression-profiles-between-a549-a549-ddp-and-their-respective-exosomes
#11
Xiaobing Qin, Shaorong Yu, Xiaoyue Xu, Bo Shen, Jifeng Feng
Exosomes were reported to transport bioactive molecules and influence the biology behavior of recipient cells. In order to study the role of exosomal microRNAs in the mechanism of cisplatin resistance to lung cancer cells, we analyzed the expression profiles of microRNAs in A549, A549/DDP cells and their exosomes by microarray. The results showed that a certain proportion of microRNAs were co-expressed in the cells and exosomes. Linear regression analysis showed that the expression of microRNAs in A549 and A549/DDP cells were strongly correlated with those in their respective exosomes...
February 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28127559/variety-of-rnas-in-peripheral-blood-cells-plasma-and-plasma-fractions
#12
Anna V Savelyeva, Elena V Kuligina, Dmitry N Bariakin, Vadim V Kozlov, Elena I Ryabchikova, Vladimir A Richter, Dmitry V Semenov
Human peripheral blood contains RNA in cells and in extracellular membrane vesicles, microvesicles and exosomes, as well as in cell-free ribonucleoproteins. Circulating mRNAs and noncoding RNAs, being internalized, possess the ability to modulate vital processes in recipient cells. In this study, with SOLiD sequencing technology, we performed identification, classification, and quantification of RNAs from blood fractions: cells, plasma, plasma vesicles pelleted at 16,000g and 160,000g, and vesicle-depleted plasma supernatant of healthy donors and non-small cell lung cancer (NSCLC) patients...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28096300/enhanced-suppression-of-polyclonal-cd8-25-regulatory-t-cells-via-exosomal-arming-of-antigen-specific-peptide-mhc-complexes
#13
Chuanyong Mu, Xueshu Zhang, Lu Wang, Aizhang Xu, Khawaja Ashfaque Ahmed, Xueqin Pang, Rajni Chibbar, Andrew Freywald, Jianan Huang, Yehan Zhu, Jim Xiang
Compared with CD4(+)25(+) regulatory T cells (Tregs), the mechanisms for natural, polyclonal CD8(+)25(+) Treg immune suppression have been significantly less studied. We previously showed that polyclonal T cells can acquire antigen-specific targeting activity through arming with exosomal peptide-MHC (pMHC). In this study, we assessed the suppressive effect of CD8(+)25(+) Tregs or CD8(+)25(+) Tregs armed with ovalbumin (OVA)-specific exosomes on other immune cells and OVA-specific dendritic cell (DCOVA)-stimulated antitumor immunity...
January 17, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28064454/hgf-met-in-cancer-progression-and-biomarker-discovery
#14
REVIEW
Kunio Matsumoto, Masataka Umitsu, Dinuka M De Silva, Arpita Roy, Donald P Bottaro
Signaling driven by hepatocyte growth factor (HGF) and MET receptor facilitates conspicuous biological responses such as epithelial cell migration, 3-D morphogenesis, and survival. The dynamic migration and promotion of cell survival induced by MET activation are bases respectively for invasion-metastasis and resistance against targeted drugs in cancers. Recent studies indicated that MET in tumor-derived exosomes facilitates metastatic niche formation and metastasis in malignant melanoma. In lung cancer, gene amplification-induced MET activation and ligand-dependent MET activation in autocrine/paracrine manner are causes for resistance to EGF receptor tyrosine kinase inhibitors and ALK inhibitors...
January 8, 2017: Cancer Science
https://www.readbyqxmd.com/read/28055956/circulating-exosomal-micrornas-as-prognostic-biomarkers-for-non-small-cell-lung-cancer
#15
Qingyun Liu, Zubin Yu, Shuai Yuan, Weijia Xie, Chengying Li, Zeyao Hu, Ying Xiang, Na Wu, Long Wu, Li Bai, Yafei Li
Exosomal miRNAs are proposed as excellent candidate biomarkers for clinical applications. However, little is known about their potential roles as prognostic biomarkers in lung cancer. In this study, we explored the prognostic value of plasma exosomal microRNAs (miRNAs) for non-small-cell lung cancer (NSCLC). Using a quantitative polymerase chain reaction (qPCR) array panel, we analyzed 84 plasma exosomal miRNAs in 10 lung adenocarcinoma patients and 10 matched healthy controls. The qPCR array showed 30 aberrantly expressed exosomal miRNAs...
December 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/28036284/a-six-microrna-panel-in-plasma-was-identified-as-a-potential-biomarker-for-lung-adenocarcinoma-diagnosis
#16
Xin Zhou, Wei Wen, Xia Shan, Wei Zhu, Jing Xu, Renhua Guo, Wenfang Cheng, Fang Wang, Lian-Wen Qi, Yan Chen, Zebo Huang, Tongshan Wang, Danxia Zhu, Ping Liu, Yongqian Shu
Differently expressed microRNAs (miRNAs) in the plasma of lung adenocarcinoma (LA) patients might serve as biomarkers for LA detection. MiRNA expression profiling was performed using Exiqon panels followed by the verification (30 LA VS. 10 healthy controls (HCs)) with quantitative reverse transcription polymerase chain reaction (qRT-PCR) in the screening phase. Identified miRNAs were confirmed through training (42 LA VS. 32 HCs) and testing stages (66 LA VS. 62 HCs) by using qRT-PCR based absolute quantification methods...
January 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28026121/circulating-exosomal-microrna-96-promotes-cell-proliferation-migration-and-drug-resistance-by-targeting-lmo7
#17
Hao Wu, Jingcheng Zhou, Shanshan Mei, Da Wu, Zhimin Mu, Baokun Chen, Yuancai Xie, Yiwang Ye, Jixian Liu
Detection and treatment of lung cancer still remain a clinical challenge. This study aims to validate exosomal microRNA-96 (miR-96) as a serum biomarker for lung cancer and understand the underlying mechanism in lung cancer progression. MiR-96 expressions in normal and lung cancer patients were characterized by qPCR analysis. Changes in cell viability, migration and cisplatin resistance were monitored after incubation with isolated miR-96-containing exosomes, anti-miR-96 and anti-miR negative control (anti-miR-NC) transfections...
December 27, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28002496/exosomal-mirs-in-lung-cancer-a-mathematical-model
#18
Xiulan Lai, Avner Friedman
Lung cancer, primarily non-small-cell lung cancer (NSCLC), is the leading cause of cancer deaths in the United States and worldwide. While early detection significantly improves five-year survival, there are no reliable diagnostic tools for early detection. Several exosomal microRNAs (miRs) are overexpressed in NSCLC, and have been suggested as potential biomarkers for early detection. The present paper develops a mathematical model for early stage of NSCLC with emphasis on the role of the three highest overexpressed miRs, namely miR-21, miR-205 and miR-155...
2016: PloS One
https://www.readbyqxmd.com/read/28000095/exosomes-from-ipscs-delivering-sirna-attenuate-intracellular-adhesion-molecule-1-expression-and-neutrophils-adhesion-in-pulmonary-microvascular-endothelial-cells
#19
Zhihai Ju, Jinhui Ma, Chen Wang, Jie Yu, Yeru Qiao, Feilong Hei
The pro-inflammatory activation of pulmonary microvascular endothelial cells resulting in continuous expression of cellular adhesion molecules, and subsequently recruiting primed neutrophils to form a firm neutrophils-endothelium (PMN-EC) adhesion, has been examined and found to play a vital role in acute lung injury (ALI). RNA interference (RNAi) is a cellular process through harnessing a natural pathway silencing target gene based on recognition and subsequent degradation of specific mRNA sequences. It opens a promising approach for precision medicine...
April 2017: Inflammation
https://www.readbyqxmd.com/read/27994623/towards-therapeutic-delivery-of-extracellular-vesicles-strategies-for-in-vivo-tracking-and-biodistribution-analysis
#20
REVIEW
Giuliana Di Rocco, Silvia Baldari, Gabriele Toietta
Extracellular vesicles (EVs), such as microvesicles and exosomes, are membranous structures containing bioactive material released by several cells types, including mesenchymal stem/stromal cells (MSCs). Increasing lines of evidences point to EVs as paracrine mediators of the beneficial effects on tissue remodeling associated with cell therapy. Administration of MSCs-derived EVs has therefore the potential to open new and safer therapeutic avenues, alternative to cell-based approaches, for degenerative diseases...
2016: Stem Cells International
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