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https://www.readbyqxmd.com/read/28819456/therapeutic-effect-of-astroglia-like-mesenchymal-stem-cells-expressing-glutamate-transporter-in-a-genetic-rat-model-of-depression
#1
Amit Shwartz, Oshra Betzer, Noam Kronfeld, Gila Kazimirsky, Simona Cazacu, Susan Finniss, Hae Kyung Lee, Menachem Motiei, Shani Yael Dagan, Rachela Popovtzer, Chaya Brodie, Gal Yadid
Recent studies have proposed that abnormal glutamatergic neurotransmission and glial pathology play an important role in the etiology and manifestation of depression. It was postulated that restoration of normal glutamatergic transmission, by enhancing glutamate uptake, may have a beneficial effect on depression. We examined this hypothesis using unique human glial-like mesenchymal stem cells (MSCs), which in addition to inherent properties of migration to regions of injury and secretion of neurotrophic factors, were differentiated to express high levels of functional glutamate transporters (excitatory amino acid transporters; EAAT)...
2017: Theranostics
https://www.readbyqxmd.com/read/28819455/microvesicles-as-potential-biomarkers-for-the-identification-of-senescence-in-human-mesenchymal-stem-cells
#2
Qian Lei, Teng Liu, Fei Gao, Hui Xie, Li Sun, Aiqi Zhao, Wenxiang Ren, Hao Guo, Liming Zhang, Hongxiang Wang, Zhichao Chen, An-Yuan Guo, Qiubai Li
Senescence in human mesenchymal stem cells (MSCs) not only contributes to organism aging and the development of a variety of diseases but also severely impairs their therapeutic properties as a promising cell therapy. Studies searching for efficient biomarkers that represent cellular senescence have attracted much attention; however, no single marker currently provides an accurate cell-free representation of cellular senescence. Here, we studied characteristics of MSC-derived microvesicles (MSC-MVs) that may reflect the senescence in their parental MSCs...
2017: Theranostics
https://www.readbyqxmd.com/read/28819187/administration-of-mesenchymal-stromal-cells-before-renal-ischemia-reperfusion-attenuates-kidney-injury-and-may-modulate-renal-lipid-metabolism-in-rats
#3
Pauline Erpicum, Pascal Rowart, Laurence Poma, Jean-Marie Krzesinski, Olivier Detry, François Jouret
Mesenchymal stromal cells (MSC) have been demonstrated to attenuate renal ischemia/reperfusion (I/R) damage in rodent models. The mechanisms of such nephro-protection remain largely unknown. Furthermore, the optimal timing of MSC administration has been poorly investigated. Here, we compare the impact of MSC injection 7 days before (MSCD - 7) versus 1 day after (MSCD + 1) renal I/R in rats. Control groups received equivalent volumes of saline at similar time-points (SD - 7 and SD + 1). Right nephrectomy was performed, and left renal ischemia lasted 45 min...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819122/anti-inflammatory-drugs-suppress-ultrasound-mediated-mesenchymal-stromal-cell-tropism-to-kidneys
#4
Scott R Burks, Ben A Nguyen, Michele N Bresler, Matthew E Nagle, Saejeong J Kim, Joseph A Frank
Mesenchymal stromal cells (MSC) are potential renal therapeutics. Clinically, results are mixed partly because MSC tropism to kidneys is minimal following infusion. Ultrasound augmentation of the renal microenvironment is becoming increasingly-important in renal MSC therapies. We demonstrated pulsed-focused-ultrasound (pFUS) increases enhanced homing permeability and retention of MSC in mouse kidneys. Here, we characterized the temporal proteomic response to pFUS in mouse kidneys and its association with MSC tropism...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819120/dual-delivery-of-fgf-2-ctgf-from-silk-fibroin-plcl-peo-coaxial-fibers-enhances-msc-proliferation-and-fibrogenesis
#5
Ruodan Xu, Huiling Zhao, Hanif Muhammad, Mingdong Dong, Flemming Besenbacher, Menglin Chen
The success of mesenchymal stem cell transplantation is highly dependent on their survival and controlled fate regulation. This study demonstrates that dual-delivery of connective tissue growth factor (CTGF) and fibroblast growth factor 2 (FGF-2) from a core-shell fiber of Silk Fibroin/poly(L-lactic acid-co-ε-caprolactone)-polyethylene oxide (SF/PLCL-PEO) enhanced fibrogenic lineage differentiation of MSCs. The core-shell structure was confirmed by transmission electron microscopy (TEM), fluorescence microscopy and attenuated total reflection (ATR) Fourier transform infrared (FTIR) spectroscopy...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818580/effects-of-sulfur-mustard-on-mesenchymal-stem-cells
#6
Annette Schmidt, Steinritz Dirk, Rothmiller Simone, Thiermann Horst, Scherer A Michael
Chronic wound healing disorders that occur as a result of a sulfur mustard (SM) exposure present a particular challenge. These chronic wounds are similar to other chronic wounds. In the past, it has been shown that mesenchymal stem cells (MSC) play an important role in the healing of chronic wounds. An important property to support wound healing is their ability to migrate. However, we were able to show that SM leads to a reduction in MSC migration even at low concentrations. Currently, exposed MSCs are still able to differentiate...
August 14, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28817816/exosomes-derived-from-human-bone-marrow-mesenchymal-stem-cells-promote-tumor-growth-through-hedgehog-signaling-pathway
#7
Jin Qi, Yali Zhou, Zuoyi Jiao, Xu Wang, Yang Zhao, Yangbin Li, Huijuan Chen, Luxi Yang, Hongwen Zhu, Yumin Li
BACKGROUND/AIMS: Mesenchymal stem/stromal cells (MSCs) are known to home to sites of tumor microenvironments where they participate in the formation of the tumor microenvironment and to interplay with tumor cells. However, the potential functional effects of MSCs on tumor cell growth are controversial. Here, we, from the view of bone marrow MSC-derived exosomes, study the molecular mechanism of MSCs on the growth of human osteosarcoma and human gastric cancer cells. METHODS: MSCs derived from human bone marrow (hBMSCs) were isolated and cultured in complete DMEM/F12 supplemented with 10% exosome-depleted fetal bovine serum and 1% penicillin-streptomycin, cell culture supernatants containing exosomes were harvested and exosome purification was performed by ultracentrifugation...
August 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28816104/the-immune-response-to-allogeneic-differentiated-mesenchymal-stem-cells-in-the-context-of-bone-tissue-engineering
#8
Caoimhe H Kiernan, Eppo B Wolvius, Pieter A J Brama, Eric Farrell
The use of allogeneic differentiated mesenchymal stem cells (MSCs) to mediate bone formation may be a potential alternative to the current gold standards of bone repair. While it is known that undifferentiated MSCs are immunomodulatory and weakly immunogenic, the host immune reaction to differentiated MSCs is less known. Implantation of allogeneic osteogenic or chondrogenically differentiated MSC pellets may be promising routes to induce bone repair via the processes of intramembranous and endochondral ossification...
August 17, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28816065/improved-hematopoietic-gene-therapy-in-a-mouse-model-of-fanconi-anemia-mediated-by-mesenchymal-stromal-cells
#9
Maria Fernandez-Garcia, Maria Lamana Luzuriaga, Miriam Hernando-Rodriguez, Rebeca Sanchez-Dominguez, Juan Bueren, Rosa Yañez
In this study we propose a novel approach based on the use of mesenchymal stromal cells (MSC) aiming at limiting risks of graft failure in gene therapy protocols associated with low conditioning regimens. Because the engraftment of corrected hematopoietic stem cells (HSCs) is particularly challenging in Fanconi anemia (FA), we have investigated the relevance of MSCs in an experimental model of FA gene therapy. Our results firstly showed that risks of graft failure in recipients conditioned with a moderate dose of 5Gy and infused with limited numbers of WT HSCs are significantly higher in Fanca-/- recipients as compared to WT recipients...
August 17, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28815481/gene-delivery-approaches-for-mesenchymal-stem-cell-therapy-strategies-to-increase-efficiency-and-specificity
#10
REVIEW
Gopi Suresh Oggu, Shyama Sasikumar, Nirosha Reddy, Kranthi Kiran Reddy Ella, Ch Mohan Rao, Kiran Kumar Bokara
A significant number of clinical trials have been undertaken to explore the use of mesenchymal stem cells (MSCs) for the treatment of several diseases such as Crohn's disease, diabetes, bone defects, myocardial infarction, stroke etc., Due to their efficiency in homing to the tissue injury sites, their differentiation potential, the capability to secrete a large amount of trophic factors and their immunomodulatory effects, MSCs are becoming increasingly popular and expected to be one of the promising therapeutic approaches...
August 16, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28815364/long-bone-mesenchymal-stem-cells-lb-mscs-clinically-reliable-cells-for-osteo-diseases
#11
Shirin Toosi, Hojjat Naderi-Meshkin, Fatemeh Kalalinia, Mohammad Taghi Pievandi, Hossein Hosseinkhani, Ahmad Reza Bahrami, Asieh Heirani-Tabasi, Mahdi Mirahmadi, Javad Behravan
Mesenchymal stem cells (MSCs) have been designated as the most reliable cells in clinics to treat osteo-diseases because of their versatile nature. MSCs, isolated from long bone (Lb-MSCs) are rarely reported and named as RIA-MSCs because of the reamer-irrigator-aspirator (RIA) device. The potential of these cells in the treatment of non-union bone fractures made them the ideal candidates to be studied for clinical practices. In this work, effect of cryopreservation on the proliferation and differentiation capabilities of long bone MSCs (Lb-MSCs) has been studied...
August 16, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28815306/the-effect-of-helmet-materials-and-simulated-bone-and-tissue-layers-on-bullet-behaviour-in-a-gelatine-model-of-overmatch-penetrating-head-injury
#12
Peter F Mahoney, Debra J Carr, David Miller, Michael Teagle
The aim of this work was to simulate an overmatch ballistic event against a head wearing a helmet. The experiments were designed to understand how layers of bone (or synthetic bone), synthetic skin and currently used helmet materials influence the behaviour of full metal jacket mild steel core (FMJ MSC) 7.62 × 39 mm bullets, impacting on targets with a mean velocity of 650 m/s. Bullet behaviour within 10% (by mass) gelatine blocks was assessed by measurements made of the temporary cavity within the blocks using high-speed video and of the permanent cavity by dissecting blocks post firing...
August 16, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28814814/umbilical-cord-extracts-improve-diabetic-abnormalities-in-bone-marrow-derived-mesenchymal-stem-cells-and-increase-their-therapeutic-effects-on-diabetic-nephropathy
#13
Kanna Nagaishi, Yuka Mizue, Takako Chikenji, Miho Otani, Masako Nakano, Yusaku Saijo, Hikaru Tsuchida, Shinichi Ishioka, Akira Nishikawa, Tsuyoshi Saito, Mineko Fujimiya
Bone marrow-derived mesenchymal stem cells (BM-MSC) has been applied as the most valuable source of autologous cell transplantation for various diseases including diabetic complications. However, hyperglycemia may cause abnormalities in intrinsic BM-MSC which might lose sufficient therapeutic effects in diabetic patients. We demonstrated the functional abnormalities in BM-MSC derived from both type 1 and type 2 diabetes models in vitro, which resulted in loss of therapeutic effects in vivo in diabetic nephropathy (DN)...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814526/hiv-1-exploits-dynamic-multi-aminoacyl-trna-synthetase-complex-to-enhance-viral-replication
#14
Alice A Duchon, Corine St-Gelais, Nathan Titkemeier, Joshua Hatterschide, Li Wu, Karin Musier-Forsyth
A hallmark of retroviruses such as human immunodeficiency virus type 1 (HIV-1) is reverse transcription of genomic RNA to DNA, a process that is primed by cellular tRNAs. HIV-1 recruits human tRNA(Lys3) to serve as the reverse transcription primer via an interaction between lysyl-tRNA synthetase (LysRS) and the HIV-1 Gag polyprotein. LysRS is normally sequestered in a multi-aminoacyl-tRNA synthetase complex (MSC). Previous studies demonstrated that components of the MSC can be mobilized in response to certain cellular stimuli, but how LysRS is redirected from the MSC to viral particles for packaging is unknown...
August 16, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28813021/enhanced-cell-growth-of-adipocyte-derived-mesenchymal-stem-cells-using-chemically-defined-serum-free-media
#15
Myung-Suk Lee, Christine Youn, Jeong Hyun Kim, Byoung Jun Park, Jongchan Ahn, Sungyoul Hong, Young-Deug Kim, Young Kee Shin, Sang Gyu Park
The multipotency and anti-inflammatory effects of mesenchymal stem cells (MSCs) make them attractive for cell therapy in regenerative medicine. A large number of MSCs is required for efficient therapy owing to the low homing efficiency of MSCs to target sites. Furthermore, owing to limitations in obtaining sufficient amounts of MSCs, in vitro expansion of MSCs that preserves their differentiation and proliferative potential is essential. The animal factor included in culture media also limits clinical application...
August 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28811575/biological-and-functional-characterization-of-bone-marrow-derived-mesenchymal-stromal-cells-from-patients-affected-by-primary-immunodeficiency
#16
Nadia Starc, Daniela Ingo, Antonella Conforti, Valeria Rossella, Luigi Tomao, Angela Pitisci, Fabiola De Mattia, Immacolata Brigida, Mattia Algeri, Mauro Montanari, Giuseppe Palumbo, Pietro Merli, Paolo Rossi, Alessandro Aiuti, Franco Locatelli, Maria Ester Bernardo
Mesenchymal stromal cells (MSCs) represent a key component of bone marrow (BM) microenvironment and display immune-regulatory properties. We performed a detailed analysis of biological/functional properties of BM-MSCs derived from 33 pediatric patients affected by primary immune-deficiencies (PID-MSCs): 7 Chronic Granulomatous Disease (CGD), 15 Wiskott-Aldrich Syndrome (WAS), 11 Severe Combined Immunodeficiency (SCID). Results were compared with MSCs from 15 age-matched pediatric healthy-donors (HD-MSCs). Clonogenic and proliferative capacity, differentiation ability, immunophenotype, immunomodulatory properties were analyzed...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810264/mesenchymal-stem-cells-promote-diabetic-corneal-epithelial-wound-healing-through-tsg-6-dependent-stem-cell-activation-and-macrophage-switch
#17
Guohu Di, Xianli Du, Xia Qi, Xiaowen Zhao, Haoyun Duan, Suxia Li, Lixin Xie, Qingjun Zhou
Purpose: To explore the role and mechanism of bone marrow-derived mesenchymal stem cells (BM-MSCs) in corneal epithelial wound healing in type 1 diabetic mice. Methods: Diabetic mice were treated with subconjunctival injections of BM-MSCs or recombinant tumor necrosis factor-α-stimulated gene/protein-6 (TSG-6). The corneal epithelial wound healing rate was examined by fluorescein staining. The mRNA and protein expression levels of TSG-6 were measured by quantitative RT-PCR and Western blot...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28809824/creation-and-transplantation-of-an-adipose-derived-stem-cell-asc-sheet-in-a-diabetic-wound-healing-model
#18
Yuka Kato, Takanori Iwata, Kaoru Washio, Toshiyuki Yoshida, Hozue Kuroda, Shunichi Morikawa, Mariko Hamada, Kazuki Ikura, Nobuyuki Kaibuchi, Masayuki Yamato, Teruo Okano, Yasuko Uchigata
Artificial skin has achieved considerable therapeutic results in clinical practice. However, artificial skin treatments for wounds in diabetic patients with impeded blood flow or with large wounds might be prolonged. Cell-based therapies have appeared as a new technique for the treatment of diabetic ulcers, and cell-sheet engineering has improved the efficacy of cell transplantation. A number of reports have suggested that adipose-derived stem cells (ASCs), a type of mesenchymal stromal cell (MSC), exhibit therapeutic potential due to their relative abundance in adipose tissue and their accessibility for collection when compared to MSCs from other tissues...
August 4, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28807051/mesenchymal-stromal-cells-ameliorate-oxidative-stress-induced-islet-endothelium-apoptosis-and-functional-impairment-via-wnt4-%C3%AE-catenin-signaling
#19
Lingshu Wang, Li Qing, He Liu, Na Liu, Jingting Qiao, Chen Cui, Tianyi He, Ruxing Zhao, Fuqiang Liu, Fei Yan, Chuan Wang, Kai Liang, Xinghong Guo, Ying H Shen, Xinguo Hou, Li Chen
BACKGROUND: Islet dysfunction and destruction are the common cause for both type 1 and type 2 diabetes mellitus (T2DM). The islets of Langerhans are highly vascularized miniorgans, and preserving the structural integrity and full function of the microvascular endothelium is vital for protecting the islets from the infiltration of immune cells and secondary inflammatory attack. Mesenchymal stromal cell (MSC)-based therapies have been proven to promote angiogenesis of the islets; however, the underlying mechanism for the protective role of MSCs in the islet endothelium is still vague...
August 14, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28807034/exosomes-from-embryonic-mesenchymal-stem-cells-alleviate-osteoarthritis-through-balancing-synthesis-and-degradation-of-cartilage-extracellular-matrix
#20
Yafei Wang, Dongsheng Yu, Zhiming Liu, Fang Zhou, Jun Dai, Bingbing Wu, Jing Zhou, Boon Chin Heng, Xiao Hui Zou, Hongwei Ouyang, Hua Liu
BACKGROUND: Mesenchymal stem cell therapy for osteoarthritis (OA) has been widely investigated, but the mechanisms are still unclear. Exosomes that serve as carriers of genetic information have been implicated in many diseases and are known to participate in many physiological processes. Here, we investigate the therapeutic potential of exosomes from human embryonic stem cell-induced mesenchymal stem cells (ESC-MSCs) in alleviating osteoarthritis (OA). METHODS: Exosomes were harvested from conditioned culture media of ESC-MSCs by a sequential centrifugation process...
August 14, 2017: Stem Cell Research & Therapy
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