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CD63 exosome

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https://www.readbyqxmd.com/read/28708510/changes-in-localization-and-density-of-cd63-positive-exosome-like-substances-in-the-hen-oviduct-with-artificial-insemination-and-their-effect-on-sperm-viability
#1
A Huang, N Isobe, Y Yoshimura
Avian sperm are stored in the sperm storage tubules (SSTs) of the hen oviduct for a prolonged period. However, the precise mechanisms by which sperm are kept alive in the SSTs are still not fully understood. The aim of this study was to determine whether exosomes are secreted by SST cells and play a role in the survival of sperm. Utero-vaginal junction (UVJ) tissue from approximately 50 wk old White Leghorn hens was collected before (control group) and after intravaginal insemination with seminal plasma (SP group) or semen (AI group)...
June 29, 2017: Theriogenology
https://www.readbyqxmd.com/read/28701751/secretome-of-in-vitro-cultured-human-embryos-contains-extracellular-vesicles-that-are-uptaken-by-the-maternal-side
#2
Elisa Giacomini, Riccardo Vago, Ana Maria Sanchez, Paola Podini, Natasa Zarovni, Valentina Murdica, Roberta Rizzo, Daria Bortolotti, Massimo Candiani, Paola Viganò
Communication between embryo and maternal endometrium occurs during a specific time frame in which implantation is possible. Here we demonstrate for the first time that conditioned media from non-manipulated human embryos cultured in vitro for 3 days or up to the blastocyst stage contain extracellular vesicles (EVs) with a diameter of 50 to 200 nm and bearing the traditional microvesicle and exosome marker proteins CD63, CD9 and ALIX. The embryonic origin of these EVs has been confirmed by the presence of stemness gene transcripts and their enrichment in the non-classical HLA-G protein...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28695799/effect-of-human-hepatocellular-carcinoma-hepg2-cell-derived-exosome-on-the-differentiation-of-mesenchymal-stem-cells-and-their-interaction
#3
Fei Luo, Zhao Sun, Qin Han, Chunling Xue, Chunmei Bai
Objective To investigate the effect of human hepatocellular carcinoma HepG2 cell-derived Exosome on the differentiation of mesenchymal stem cells(MSC)into cancer-associated myofibroblasts(CAF)and the impacts of CAF on liver cancer cell proliferation,migration,and invasion. Methods The protein expression of HepG2 cell-derived Exosome was detected by Western blotting. MSCs were separated from human adipose tissue and cultured with HepG2 cell-derived Exosome(100 ng/nl)to initiate differentiation. The expressions of mesenchymal markers and several interleukins were also detected by Western blotting...
June 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28679315/bone-marrow-mesenchymal-stem-cell-derived-cd63-exosomes-transport-wnt3a-exteriorly-and-enhance-dermal-fibroblast-proliferation-migration-and-angiogenesis-in-vitro
#4
Jeffrey D McBride, Luis Menocal-Rodriguez, Ambar Candanedo, Wellington Guzman, Marta Garcia-Contreras, Evangelos Van Badiavas
Wnts are secreted glycoproteins that regulate stem cell self-renewal, differentiation, and cell-to-cell communication during embryonic development and in adult tissues. Bone marrow mesenchymal stem cells (BM-MSCs) have been shown to stimulate dermis repair and regeneration; however, it is unclear how BM-MSCs may modulate downstream Wnt signaling. While recent reports implicate that Wnt ligands and Wnt messenger RNAs (such as Wnt4) exist within the interior compartment of exosomes, it has been debated whether or not Wnts exist on the exterior surface of exosomes to travel in the extracellular space...
July 5, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28650395/exosomal-markers-cd63-and-cd9-expression-pattern-using-immunohistochemistry-in-resected-malignant-and-nonmalignant-pancreatic-specimens
#5
Moh'd Khushman, Arun Bhardwaj, Girijesh Kumar Patel, Javier Ariel Laurini, Kelly Roveda, Marcus C Tan, Mary C Patton, Seema Singh, William Taylor, Ajay P Singh
OBJECTIVES: Exosomes are important mediators in intercellular communications and play a role in cancer progression and metastasis. Exosomal membranes are enriched in endosome-specific tetraspanins (CD9 and CD63). Here, we explored the expression of CD63 and CD9 utilizing immunohistochemistry in malignant and nonmalignant cells in 29 resected pancreatic specimens (RPSs) of mixed racial background. METHODS: The pathologic tissues (PTs) and adjacent normal tissues (ANTs) in each RPS were stained for CD63 and CD9...
June 22, 2017: Pancreas
https://www.readbyqxmd.com/read/28629620/effects-of-inhibiting-vps4-support-a-general-role-for-escrts-in-extracellular-vesicle-biogenesis
#6
Charles E Jackson, Benjamin S Scruggs, Jean E Schaffer, Phyllis I Hanson
Extracellular vesicles (EVs) are proposed to play important roles in intercellular communication. Two classes of EVs can be distinguished based on their intracellular origin. Exosomes are generated within endosomes and released when these fuse with the plasma membrane, whereas ectosomes bud directly from the plasma membrane. Studies of EV function have been hindered by limited understanding of their biogenesis. Components of the endosomal sorting complex required for transport (ESCRT) machinery play essential roles in topologically equivalent processes at both the endosome and the plasma membrane and are consistently recovered in EVs, but whether they are generally required to produce EVs is still debated...
June 16, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28609367/exosomal-markers-cd63-and-cd9-expression-pattern-using-immunohistochemistry-in-resected-malignant-and-nonmalignant-pancreatic-specimens
#7
Moh'd Khushman, Arun Bhardwaj, Girijesh Kumar Patel, Javier Ariel Laurini, Kelly Roveda, Marcus C Tan, Mary C Patton, Seema Singh, William Taylor, Ajay P Singh
OBJECTIVES: Exosomes are important mediators in intercellular communications and play a role in cancer progression and metastasis. Exosomal membranes are enriched in endosome-specific tetraspanins (CD9 and CD63). Here, we explored the expression of CD63 and CD9 utilizing immunohistochemistry in malignant and nonmalignant cells in 29 resected pancreatic specimens (RPSs) of mixed racial background. METHODS: The pathologic tissues (PTs) and adjacent normal tissues (ANTs) in each RPS were stained for CD63 and CD9...
July 2017: Pancreas
https://www.readbyqxmd.com/read/28555885/serum-extracellular-vesicles-contain-protein-biomarkers-for-primary-sclerosing-cholangitis-and-cholangiocarcinoma
#8
Ander Arbelaiz, Mikel Azkargorta, Marcin Krawczyk, Alvaro Santos-Laso, Ainhoa Lapitz, Maria J Perugorria, Oihane Erice, Esperanza Gonzalez, Raul Jimenez-Agüero, Adelaida Lacasta, Cesar Ibarra, Alberto Sanchez-Campos, Juan P Jimeno, Frank Lammert, Piotr Milkiewicz, Marco Marzioni, Rocio I R Macias, Jose J G Marin, Tushar Patel, Gregory J Gores, Ibon Martinez, Félix Elortza, Juan M Falcon-Perez, Luis Bujanda, Jesus M Banales
Cholangiocarcinoma (CCA) includes a heterogeneous group of biliary cancers with poor prognosis. Several conditions such as primary sclerosing cholangitis (PSC) are risk factors. Non-invasive differential diagnosis between intrahepatic CCA (iCCA) and hepatocellular carcinoma (HCC) is sometimes difficult. Accurate non-invasive biomarkers for PSC, CCA or HCC are not available. In the search of novel biomarkers, serum extracellular vesicles (EV) were isolated from CCA (n=43), PSC (n=30) or HCC (n=29) patients, and healthy individuals (control, n=32), and their protein content was characterized...
May 26, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28542562/identification-and-characteristics-of-extracellular-vesicles-from-bovine-blastocysts-produced-in-vitro
#9
Edwin A Mellisho, Alejandra E Velásquez, María J Nuñez, Joel G Cabezas, Juan A Cueto, Claudio Fader, Fidel O Castro, Lleretny Rodríguez-Álvarez
Extracellular vesicles (EVs) have been identified within different body fluids and cell culture media. However, there is very little information on the secretion of these vesicles during early embryonic development. The aims of this work were first to demonstrate the secretion of extracellular vesicles by pre-implantation bovine embryos and second to identify and characterize the population of EVs secreted by bovine blastocysts during the period from day seven to nine of embryo culture and its correlation with further embryo development up to day 11...
2017: PloS One
https://www.readbyqxmd.com/read/28534915/quantum-dot-based-sensitive-detection-of-disease-specific-exosome-in-serum
#10
Kseniia Boriachek, Md Nazmul Islam, Vinod Gopalan, Alfred K Lam, Nam-Trung Nguyen, Muhammad J A Shiddiky
Tumor-derived exosomes have emerged as promising cancer biomarkers due to their unique composition and functions. Herein, we report a stripping voltammetric immunoassay for the electrochemical detection of disease-specific exosomes using quantum dots as signal amplifiers. The assay involves three subsequent steps where bulk exosome populations are initially magnetically captured on magnetic beads by a generic tetraspanin antibody (e.g., CD9 or CD63) followed by the identification of disease-specific exosomes using cancer-related...
June 21, 2017: Analyst
https://www.readbyqxmd.com/read/28485529/exosomes-mediate-interepithelial-transfer-of-functional-p-glycoprotein-in-chronic-rhinosinusitis-with-nasal-polyps
#11
Angela L Nocera, Marcel M Miyake, Philip Seifert, Xue Han, Benjamin S Bleier
OBJECTIVE: P-glycoprotein (P-gp) drives type-2 helper T-cell inflammation in chronic rhinosinusitis with nasal polyps (CRSwNP) through unknown posttranslational mechanisms of overexpression. A recent randomized clinical trial demonstrated that inhibition of P-gp was as effective as oral steroids and biologics in treating CRSwNP. Exosomes are 30- to 150-nm vesicles capable of intercellular membrane protein transfer. The aims of this study were 1) to determine whether CRSwNP mucus exosomes are enriched with P-gp, and 2) whether exosomal P-gp can be functionally transferred to autologous epithelial cells as a putative mechanism for the proinflammatory overexpression of P-gp in CRSwNP...
May 9, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28476891/drosophila-tg-a-transglutaminase-is-secreted-via-an-unconventional-golgi-independent-mechanism-involving-exosomes-and-two-types-of-fatty-acylations
#12
Toshio Shibata, Jinki Hadano, Daichi Kawasaki, Xiaoqing Dong, Shun-Ichiro Kawabata
Transglutaminases (TGs) play essential intracellular and extracellular roles by covalently cross-linking many proteins. Drosophila TG is encoded by one gene and has two alternative splicing-derived isoforms, TG-A and TG-B, which contain distinct N-terminal 46- and 38-amino acid sequences, respectively. The TGs identified to date do not have a typical endoplasmic reticulum (ER)-signal peptide, and the molecular mechanisms of their secretion under physiologic conditions are unclear. Immunocytochemistry revealed that TG-A localizes to multivesicular-like structures, whereas TG-B localizes to the cytosol...
June 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28369848/end-stage-renal-disease-induced-hypercalcemia-may-promote-aortic-valve-calcification-via-annexin-vi-enrichment-of-valve-interstitial-cell-derived-matrix-vesicles
#13
Lin Cui, Nabil A Rashdan, Dongxing Zhu, Elspeth M Milne, Paul Ajuh, Gillian Milne, Miep H Helfrich, Kelvin Lim, Sai Prasad, Daniel A Lerman, Alex T Vesey, Marc R Dweck, William S Jenkins, David E Newby, Colin Farquharson, Vicky E Macrae
Patients with end-stage renal disease (ESRD) have elevated circulating calcium (Ca) and phosphate (Pi), and exhibit accelerated progression of calcific aortic valve disease (CAVD). We hypothesized that matrix vesicles (MVs) initiate the calcification process in CAVD. Ca induced rat valve interstitial cells (VICs) calcification at 4.5 mM (16.4-fold; p < 0.05) whereas Pi treatment alone had no effect. Ca (2.7 mM) and Pi (2.5 mM) synergistically induced calcium deposition (10.8-fold; p < 0...
March 30, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28363268/microrna-183-5p-increases-with-age-in-bone-derived-extracellular-vesicles-suppresses-bone-marrow-stromal-stem-cell-proliferation-and-induces-stem-cell-senescence
#14
Colleen Davis, Amy Dukes, Michelle Drewry, Inas Helwa, Maribeth H Johnson, Carlos M Isales, William D Hill, Yutao Liu, Xingming Shi, Sadanand Fulzele, Mark W Hamrick
Microvesicle- and exosome-mediated transport of microRNAs (miRNAs) represents a novel cellular and molecular pathway for cell-cell communication. In this study, we tested the hypothesis that these extracellular vesicles (EVs) and their miRNAs might change with age, contributing to age-related stem cell dysfunction. EVs were isolated from the bone marrow interstitial fluid (supernatant) of young (3-4 months) and aged (24-28 months) mice to determine whether the size, concentration, and miRNA profile of EVs were altered with age in vivo...
April 28, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28360912/exosomes-isolated-from-ascites-of-t-cell-lymphoma-bearing-mice-expressing-surface-cd24-and-hsp-90-induce-a-tumor-specific-immune-response
#15
Florencia Menay, Leticia Herschlik, Julieta De Toro, Federico Cocozza, Rodrigo Tsacalian, María José Gravisaco, María Paula Di Sciullo, Alejandrina Vendrell, Claudia I Waldner, Claudia Mongini
Extracellular vesicles (EVs), including endosome-derived nanovesicles (exosomes), are involved in cell-cell communication. Through transfer of their molecular contents, extracellular nanovesicles can alter the function of recipient cells. Due to these characteristics, EVs have shown potential as a new alternative for cancer immunotherapy. Tumor exosomes isolated from malignant ascites can activate dendritic cells, thereby priming the immune system to recognize and kill cancer cells. However, a suppressive role on tumor immune response has also been reported, suggesting that the neoplastic stage of carcinogenesis and the microenvironment where tumor cells grow may influence the amount of EVs released by the cell...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28359953/cigarette-smoke-extract-induced-exosome-release-is-mediated-by-depletion-of-exofacial-thiols-and-can-be-inhibited-by-thiol-antioxidants
#16
Birke J Benedikter, Charlotte Volgers, Pascalle H van Eijck, Emiel F M Wouters, Paul H M Savelkoul, Niki L Reynaert, Guido R M M Haenen, Gernot G U Rohde, Antje R Weseler, Frank R M Stassen
INTRODUCTION: Airway epithelial cells have been described to release extracellular vesicles (EVs) with pathological properties when exposed to cigarette smoke extract (CSE). As CSE causes oxidative stress, we investigated whether its oxidative components are responsible for inducing EV release and whether this could be prevented using the thiol antioxidants N-acetyl-l-cysteine (NAC) or glutathione (GSH). METHODS: BEAS-2B cells were exposed for 24h to CSE, H2O2, acrolein, 5,5'-dithiobis-(2-nitrobenzoic acid) (DTNB), bacitracin, rutin or the anti-protein disulfide isomerase (PDI) antibody clone RL90; with or without NAC or GSH...
March 28, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28350871/oxygen-tension-regulates-the-mirna-profile-and-bioactivity-of-exosomes-released-from-extravillous-trophoblast-cells-liquid-biopsies-for-monitoring-complications-of-pregnancy
#17
Grace Truong, Dominic Guanzon, Vyjayanthi Kinhal, Omar Elfeky, Andrew Lai, Sherri Longo, Zarin Nuzhat, Carlos Palma, Katherin Scholz-Romero, Ramkumar Menon, Ben W Mol, Gregory E Rice, Carlos Salomon
Our understanding of how cells communicate has undergone a paradigm shift since the recent recognition of the role of exosomes in intercellular signaling. In this study, we investigated whether oxygen tension alters the exosome release and miRNA profile from extravillous trophoblast (EVT) cells, modifying their bioactivity on endothelial cells (EC). Furthermore, we have established the exosomal miRNA profile at early gestation in women who develop pre-eclampsia (PE) and spontaneous preterm birth (SPTB). HTR-8/SVneo cells were used as an EVT model...
2017: PloS One
https://www.readbyqxmd.com/read/28346015/the-role-of-exosomes-derived-from-cerebrospinal-fluid-of-spinal-cord-injury-in-neuron-proliferation-in-vitro
#18
Fan-Long Kong, Xiao-Ping Wang, Ya-Nan Li, Hai-Xu Wang
Exosomes is a key component of cell paracrine secretion and can exert important effects in various disease models. However, the role of exosomes in neuron repair of spinal cord injury (SCI) has rarely been reported. In this study, Exosomes were isolated from cerebrospinal fluid of SCI and normal, and incubated neuron in vitro respectively to research its biological function in cell proliferation. The results demonstrated these exosomes all expressed CD9, CD63, CD81, Alix and Tsg101; however, only exosomes derived from cerebrospinal fluid of SCI could promote proliferation of neuron via ERK signaling pathway, and decrease cell apoptosis...
March 27, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28338013/effect-of-prolonged-freezing-of-semen-on-exosome-recovery-and-biologic-activity
#19
Jennifer L Welch, Marisa N Madison, Joseph B Margolick, Shannon Galvin, Phalguni Gupta, Otoniel Martínez-Maza, Chandravanu Dash, Chioma M Okeoma
Exosomes are important vehicles of intercellular communication that shape host responses to physiologic, tumorigenic, and pathogenic conditions. The composition and function of exosomes are dynamic and depends on the state and condition of the cellular source. In prior work, we found that semen exosomes (SE) from healthy donors who do not use illicit drugs potently inhibit HIV-1. Following semen donation, specimens are either used immediately or frozen for use at a later time. It has been shown that short-term freezing of semen has no effect on SE-mediated HIV-1 inhibition...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326171/large-scale-isolation-and-cytotoxicity-of-extracellular-vesicles-derived-from-activated-human-natural-killer-cells
#20
Ambrose Y Jong, Chun-Hua Wu, Jingbo Li, Jianping Sun, Muller Fabbri, Alan S Wayne, Robert C Seeger
Extracellular vesicles (EVs) have been the focus of great interest, as they appear to be involved in numerous important cellular processes. They deliver bioactive macromolecules such as proteins, lipids, and nucleic acids, allowing intercellular communication in multicellular organisms. EVs are secreted by all cell types, including immune cells such as natural killer cells (NK), and they may play important roles in the immune system. Currently, a large-scale procedure to obtain functional NK EVs is lacking, limiting their use clinically...
2017: Journal of Extracellular Vesicles
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