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https://www.readbyqxmd.com/read/29777792/human-cancer-cells-suppress-behaviors-of-endothelial-progenitor-cells-through-mir-21-targeting-il6r
#1
Wenbin Wang, Xiao Yuan, Aman Xu, Xingyang Zhu, Yanqing Zhan, Shuanhu Wang, Mulin Liu
Deep vein thrombosis (DVT) is a severe clinical process and has a high rate of fatality. Cancer patients have a high incidence rate of venous thrombosis complication and increase the mortality of cancer patients for 2-8 times. The mechanisms involved in human cancers and venous thrombosis remains unclear. In this study, we determined miR-21 expressed higher in human breast cancer, colon cancer and hepatocellular cancer tissues compared with normal tissues and expressed higher in exosomes of breast cancer and hepatocellular cancer cell lines compared with normal cells...
May 16, 2018: Microvascular Research
https://www.readbyqxmd.com/read/29774141/exosome-mediated-peritoneal-dissemination-in-gastric-cancer-and-its-clinical-applications
#2
REVIEW
Kai-Bo Chen, Jian Chen, Xiao-Li Jin, Yi Huang, Qiu-Ming Su, Li Chen
The prognosis of patients with peritoneal dissemination from gastric cancer is poor, and the underlying molecular mechanism remains unclear. Exosomes, as macromolecular phospholipid bilayer vesicles comprising of proteins, nucleic acids and lipids, serve as mediators of cell-cell communication. Gastric cancer tumor-derived exosomes may be involved in the pathological process of peritoneal dissemination by mediating crosstalk between cancer cells and mesothelial cells, to result in the induction of enhanced tumor growth, migratory, adhesive and invasive abilities, peritoneal fibrosis and apoptosis, mesothelial-to-mesenchymal transition, angiogenesis and chemoresistance...
June 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29774071/molecular-detection-and-analysis-of-exosomes-using-surface-enhanced-raman-scattering-gold-nanorods-and-a-miniaturized-device
#3
Elyahb Allie Kwizera, Ryan O'Connor, Vojtech Vinduska, Melody Williams, Elizabeth R Butch, Scott E Snyder, Xiang Chen, Xiaohua Huang
Exosomes are a potential source of cancer biomarkers. Probing tumor-derived exosomes can offer a potential non-invasive way to diagnose cancer, assess cancer progression, and monitor treatment responses. Novel molecular methods would facilitate exosome analysis and accelerate basic and clinical exosome research. Methods: A standard gold-coated glass microscopy slide was used to develop a miniaturized affinity-based device to capture exosomes in a target-specific manner with the assistance of low-cost 3-D printing technology...
2018: Theranostics
https://www.readbyqxmd.com/read/29771531/exosomes-as-a-drug-delivery-system-in-cancer-therapy-potential-and-challenges
#4
Golam Kibria, Erika Kathryn Ramos, David R Gius, Yong Wan, Huiping Liu
Exosomes play a pivotal role in mediating intercellular communications and package delivery. They have recently been discovered to serve as diagnostic biomarkers as well as a possible drug delivery vehicle based on their nanometer size range and capability to transfer biological materials to recipient cells. Their unique biocompatibility, high stability, preferred tumor homing, and adjustable targeting efficiency can make exosomes an attractive and potentially effective tool of drug delivery in cancer therapy...
May 17, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29771528/host-cell-prediction-of-exosomes-using-morphological-features-on-solid-surfaces-analyzed-by-machine-learning
#5
Kazuki Ito, Yuta Ogawa, Keiji Yokota, Sachiko Matsumura, Tamiko Minamisawa, Kanako Suga, Kiyotaka Shiba, Yasuo Kimura, Ayumi Hirano-Iwata, Yuzuru Takamura, Toshio Ogino
Exosomes are extracellular nanovesicles released from any cells and found in any body-fluid. Because exosomes exhibit information of their host cells (secreting cells), their analysis is expected to be a powerful tool for early diagnosis of cancers. To predict the host cells, we extracted multi-dimensional feature data about size, shape, and deformation of exosomes immobilized on solid surfaces by atomic force microscopy (AFM). The key idea is combination of support vector machine (SVM) learning for individual exosome particles and their interpretation by principal component analysis (PCA)...
May 17, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29767307/virus-vector-mediated-genetic-modification-of-brain-tumor-stromal-cells-after-intravenous-delivery
#6
Adrienn Volak, Stanley G LeRoy, Jeya Shree Natasan, David J Park, Pike See Cheah, Andreas Maus, Zachary Fitzpatrick, Eloise Hudry, Kelsey Pinkham, Sheetal Gandhi, Bradley T Hyman, Dakai Mu, Dwijit GuhaSarkar, Anat O Stemmer-Rachamimov, Miguel Sena-Esteves, Christian E Badr, Casey A Maguire
The malignant primary brain tumor, glioblastoma (GBM) is generally incurable. New approaches are desperately needed. Adeno-associated virus (AAV) vector-mediated delivery of anti-tumor transgenes is a promising strategy, however direct injection leads to focal transgene spread in tumor and rapid tumor division dilutes out the extra-chromosomal AAV genome, limiting duration of transgene expression. Intravenous (IV) injection gives widespread distribution of AAV in normal brain, however poor transgene expression in tumor, and high expression in non-target cells which may lead to ineffective therapy and high toxicity, respectively...
May 16, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29760738/dental-mesenchymal-stem-stromal-cells-and-their-exosomes
#7
REVIEW
Peter Stanko, Ursula Altanerova, Jana Jakubechova, Vanda Repiska, Cestmir Altaner
Stem cells derived from human dental pulp tissue (DP-MSC) differ from the other mesenchymal stem cells prepared from bone marrow or adipose tissue due to their embryonic origin from the neural crest and are of special interest because of their neurotropic character. Furthermore, the therapeutic potential of DP-MSCs is realized through paracrine action of extracellularly released components, for which exosomes play an important role. In this review, we intend to explore the properties of these cells with an emphasis on exosomes...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29760691/extracellular-vesicle-heterogeneity-subpopulations-isolation-techniques-and-diverse-functions-in-cancer-progression
#8
REVIEW
Eduard Willms, Carlos Cabañas, Imre Mäger, Matthew J A Wood, Pieter Vader
Cells release membrane enclosed nano-sized vesicles termed extracellular vesicles (EVs) that function as mediators of intercellular communication by transferring biological information between cells. Tumor-derived EVs have emerged as important mediators in cancer development and progression, mainly through transfer of their bioactive content which can include oncoproteins, oncogenes, chemokine receptors, as well as soluble factors, transcripts of proteins and miRNAs involved in angiogenesis or inflammation...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29757258/lipid-nanoparticles-decorated-with-tnf-related-aptosis-inducing-ligand-trail-are-more-cytotoxic-than-soluble-recombinant-trail-in-sarcoma
#9
Ana Gallego-Lleyda, Diego De Miguel, Alberto Anel, Luis Martinez-Lostao
Sarcomas are rare and heterogeneous cancers classically associated with a poor outcome. Sarcomas are 1% of the cancer but recent estimations indicate that sarcomas account for 2% of the estimated cancer-related deaths. Traditional treatment with surgery, radiotherapy, and chemotherapy has improved the outcome for some types of sarcomas. However, novel therapeutic strategies to treat sarcomas are necessary. TNF-related apoptosis-inducing ligand (TRAIL) is a death ligand initially described as capable of inducing apoptosis on tumor cell while sparing normal cells...
May 13, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29755357/-n-glycosylation-of-lipocalin-2-is-not-required-for-secretion-or-exosome-targeting
#10
Erawan Borkham-Kamphorst, Eddy Van de Leur, Steffen K Meurer, Eva M Buhl, Ralf Weiskirchen
Lipocalin 2 (LCN2) is a highly conserved secreted adipokine acting as a serum transport protein for small hydrophobic molecules such as fatty acids and steroids. In addition, LCN2 limits bacterial growth by sequestering iron-containing siderophores and further protects against intestinal inflammation and tumorigenesis associated with alterations in the microbiota. Human LCN2 contains one N -glycosylation site conserved in other species. It was postulated that this post-translational modification could facilitate protein folding, protects from proteolysis, is required for proper trafficking from the Golgi apparatus to the cell surface, and might be relevant for effective secretion...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29753676/prostate-tumor-cell-exosomes-containing-hyaluronidase-hyal1-stimulate-prostate-stromal-cell-motility-by-engagement-of-fak-mediated-integrin-signaling
#11
Caitlin O McAtee, Christine Booth, Christian Elowsky, Lei Zhao, Jeremy Payne, Teresa Fangman, Steve Caplan, Michael D Henry, Melanie A Simpson
The hyaluronidase Hyal1 is clinically and functionally implicated in prostate cancer progression and metastasis. Elevated Hyal1 accelerates vesicular trafficking in prostate tumor cells, thereby enhancing their metastatic potential in an autocrine manner through increased motility and proliferation. In this report, we found Hyal1 protein is a component of exosomes produced by prostate tumor cell lines overexpressing Hyal1. We investigated the role of exosomally shed Hyal1 in modulating tumor cell autonomous functions and in modifying the behavior of prostate stromal cells...
May 10, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29752284/analysis-of-the-thrombotic-and-fibrinolytic-activities-of-tumor-cell-derived-extracellular-vesicles
#12
Ludovic Durrieu, Alamelu Bharadwaj, David M Waisman
Exosomes and microvesicles (MVs) are small extracellular vesicles secreted by tumor cells and are suggested to contribute to the thrombotic events that commonly occur in patients with advanced malignancies. Paradoxically, these vesicles have been reported to also possess fibrinolytic activity. To determine whether thrombotic or fibrinolytic activity is a predominant characteristic of these extracellular vesicles, we prepared exosomes and MVs from 2 breast cancer cell lines (MDA-MB-231 and MCF7), a lung cancer cell line (A549), and a leukemia cell line (NB4) and assayed their thrombotic and fibrinolytic activities...
May 22, 2018: Blood Advances
https://www.readbyqxmd.com/read/29749061/exosomal-mir-423-5p-targets-sufu-to-promote-cancer-growth-and-metastasis-and-serves-as-a-novel-marker-for-gastric-cancer
#13
Huan Yang, Hailong Fu, Bo Wang, Xu Zhang, Jiahui Mao, Xia Li, Mei Wang, Zixuan Sun, Hui Qian, Wenrong Xu
Exosomes are critically involved in tumor growth, metastasis, and therapy resistance. Exosomes have the potential to be utilized as cancer biomarkers. In this study, we aimed to explore the roles and clinical values of exosomal miRNAs in gastric cancer. We found that the concentration of exosomes was significantly higher in the serum of gastric cancer patients and the culture supernatants of gastric cancer cells than that in healthy volunteers and gastric mucosa epithelial cells. In particular, miR-423-5p was elevated in the serum exosomes of gastric cancer patients, and the level of exosomal miR-423-5p was remarkably correlated with lymph node metastasis...
May 10, 2018: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29746865/mir-130a-3p-inhibits-migration-and-invasion-by-regulating-rab5b-in-human-breast-cancer-stem-cell-like-cells
#14
Xiangjie Kong, Junfeng Zhang, Jia Li, Jianfeng Shao, Lin Fang
Breast cancer stem cells (BCSCs) constitute a subpopulation of tumor cells that express stem cell-associated markers and have a high capacity for tumor generation in vivo. MicroRNAs (miRNAs) are involved in tumorigenesis by regulating specific oncogenes and tumor suppressor genes, and their roles in BCSCs are becoming more apparent. We try to reveal the mechanism by which specific miRNA plays its function in BCSCs. Herein, we show that miR-130a-3p is down-regulated in human breast cancer tissues and exosomes from circulating blood...
May 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29740437/targeting-and-therapy-of-glioblastoma-in-a-mouse-model-using-exosomes-derived-from-natural-killer-cells
#15
Liya Zhu, Ji Min Oh, Prakash Gangadaran, Senthilkumar Kalimuthu, Se Hwan Baek, Shin Young Jeong, Sang-Woo Lee, Jaetae Lee, Byeong-Cheol Ahn
Objective: Glioblastoma is a highly aggressive primary brain tumor that is resistant to radiotherapy and chemotherapy. Natural killer (NK) cells have been used to treat incurable cancers. Recent studies have investigated the effectiveness of NK-cell-derived exosomes (NK-Exo) for treating incurable cancers such as melanoma, leukemia, and neuroblastoma; however, NK-Exo have not been used to treat glioblastoma. In the present study, we investigated the antitumor effects of NK-Exo against aggressive glioblastoma both in vitro and in vivo and determined the tumor-targeting ability of NK-Exo by performing fluorescence imaging...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29739047/identification-of-differentially-expressed-micrornas-involved-in-the-pathogenesis-of-colorectal-cancer
#16
Haiyi Feng, Ming Xu, Yunpeng Zhang, Bo Han, Jue Wang, Peng Sun
BACKGROUND: The ability to diagnose or treat colorectal cancer (CRC) at an early stage could lead to the improved survival. The purpose of this study was to identify differentially expressed microRNAs (miRNAs) involved in the pathogenesis of CRC. These miRNAs may serve as the biomarkers or potential therapeutic targets for CRC early detection or treatment. METHODS: The GSE39814 miRNA expression profile dataset was downloaded from the NCBI GEO database. MiRNAs were extracted from the exosome fractions of three normal fetal colon-derived cells and HCT116 and SW480 cell lines...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29732370/microenvironmental-signals-and-biochemical-information-processing-cooperative-determinants-of-intratumoral-plasticity-and-heterogeneity
#17
REVIEW
Alexander E Davies, John G Albeck
Intra-tumor cellular heterogeneity is a major challenge in cancer therapy. Tumors are composed of multiple phenotypic subpopulations that vary in their ability to initiate metastatic tumors and in their sensitivity to chemotherapy. In many cases, cells can transition between these subpopulations, not by genetic mutation, but instead through reversible changes in signal transduction or gene expression programs. This plasticity begins at the level of the microenvironment where local autocrine and paracrine signals, exosomes, tumor-stroma interactions, and extracellular matrix (ECM) composition create a signaling landscape that varies over space and time...
2018: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/29731983/exosomal-mirnas-species-in-the-blood-of-small-cell-and-non-small-cell-lung-cancer-patients
#18
Valeriy Poroyko, Tamara Mirzapoiazova, Arin Nam, Isa Mambetsariev, Bolot Mambetsariev, Xiwei Wu, Aliya Husain, Everett E Vokes, Deric L Wheeler, Ravi Salgia
Lung cancer is a devastating disease with overall bleak prognosis. Current methods to diagnose lung cancer are rather invasive and are inadequate to detect the disease at an early stage when treatment is likely to be most effective. In this study, a shotgun sequencing approach was used to study the microRNA (miRNA) cargo of serum-derived exosomes of small cell lung cancer (SCLC) (n=9) and non-small cell lung cancer (NSCLC) (n=11) patients, and healthy controls (n=10). The study has identified 17 miRNA species that are differentially expressed in cancer patients and control subjects...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29731898/role-of-exosomes-in-pancreatic-cancer
#19
REVIEW
Yunmeng Yan, Guangzhen Fu, Liang Ming
Pancreatic cancer is one of the most lethal malignancies. Exosomes, which are released by multiple cell types, such as cancer cells, contain functional biomolecules (including proteins, nucleic acids and lipids) that can be horizontally delivered to recipient cells. Exosomes act as the most prominent mediator of intercellular communication and can regulate, instruct and re-educate their surrounding microenvironment and target specific organs. The present review performed an extensive search of multiple databases from 2005 to April 23 2017, for eligible literature relating to exosomes and their role in pancreatic cancer...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29729379/improved-anticancer-properties-of-stem-cells-derived-exosomes-by-prolonged-release-from-pcl-nanofibrous-structure
#20
Zahra Rezaie, Abdolreza Ardeshirylajimi, Mahmood Dehghani Ashkezari
Systemic chemotherapy as a routine method for the treatment of cancers has several complications. Localized chemotherapy can significantly increase the treatment efficacy and reduce side effects. Here, mesenchymal stem cells derived microvesicles (MVs) was incorporated into Polycaprolactone nanofibers and then the apoptotic behavior of MCF-7 breast cancer cells was investigated while cultured on MVs-Polycaprolactone by using SEM, MTT and apoptotic gene expression. Results demonstrated that MVs-Polycaprolactone group was shown a great apoptosis induction potential into MCF-7 cells and it can be concluded that MVs-Polycaprolactone has a great promising potential to introduce as an in-situ tumor inhibitor construct rather than chemo-drugs...
May 2, 2018: Gene
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