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umbilical cord stem cells

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https://www.readbyqxmd.com/read/29675371/mesenchymal-stem-cells-derived-exosomes-ameliorate-blue-light-stimulation-in-retinal-pigment-epithelium-cells-and-retinal-laser-injury-by-vegf-dependent-mechanism
#1
Guang-Hui He, Wei Zhang, Ying-Xue Ma, Jing Yang, Li Chen, Jian Song, Song Chen
AIM: To observe the effect of exosomes derived from human umbilical cord blood mesenchymal stem cells (hUCMSCs) on the expression of vascular endothelial growth factor-A (VEGF-A) in blue light injured human retinal pigment epithelial (RPE) cells and laser-induced choroidal neovascularization (CNV) in rats. METHODS: Exosomes were isolated from hUCMSCs and characterized by transmission electron microscope and Western blot. MSCs-derived exosomes were cultured with RPE cells exposed to blue light...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29674661/donor-dependent-variation-of-human-umbilical-cord-blood-mesenchymal-stem-cells-in-response-to-hypoxic-preconditioning-and-amelioration-of-limb-ischemia
#2
Insung Kang, Byung-Chul Lee, Soon Won Choi, Jin Young Lee, Jae-Jun Kim, Bo-Eun Kim, Da-Hyun Kim, Seung Eun Lee, Nari Shin, Yoojin Seo, Hyung-Sik Kim, Dong-Ik Kim, Kyung-Sun Kang
With the rapidly growing demand for mesenchymal stem cell (MSC) therapy, numerous strategies using MSCs for different diseases have been studied and reported. Because of their immunosuppressive properties, MSCs are commonly used as an allogeneic treatment. However, for the many donors who could potentially be used, it is important to understand the capacity for therapeutic usage with donor-to-donor heterogeneity. In this study, we aimed to investigate MSCs as a promising therapeutic strategy for critical limb ischemia...
April 20, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29670904/inflammatory-human-umbilical-cord-derived-mesenchymal-stem-cells-promote-stem-cell-like-characteristics-of-cancer-cells-in-an-il-1-%C3%AE-dependent-manner
#3
Xiaohe Luo, Shan Huang, Ningning He, Chen Liu, Yanan Chen, Yanhua Liu, Xue Mi, Na Li, Peiqing Sun, Zongjin Li, Rong Xiang, Weijun Su
To ensure the safety of clinical applications of MSCs, thorough understanding of their impacts on tumor initiation and progression is essential. Here, to further explore the complex dialog between MSCs and tumor cells, umbilical cord-derived mesenchymal stem cells (UC-MSCs) were employed to be cocultured with either breast or ovarian cancer cells. Though having no obvious influence on proliferation or apoptosis, UC-MSCs exerted intense stem cell-like properties promoting effects on both cancer models. Cocultured cancer cells showed enriched side population, enhanced sphere formation ability, and upregulated pluripotency-associated stem cell markers...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29668284/the-double-edged-effect-of-hydroxychloroquine-on-human-umbilical-cord-derived-mesenchymal-stem-cells-treating-lupus-nephritis-in-mrl-lpr-mice
#4
Shaoshan Mai, Lin Zou, Xiaoyan Tian, Xiao Liao, Yizhao Luan, Xing Han, Yuling Wei, Yue Wu, Shengnan Kuang, Yang Yang, Jie Ma, Qi Chen, Junqing Yang
Hydroxychlorquine(HCQ) and human umbilical cord-derived mesenchymal stem cells (UC-MSCs) were used to treat systemic lupus erythematosus(SLE),respectively. However, the effect of HCQ on UC-MSCs in lupus nephritis (LN) has not been investigated. In this study, HCQ and UC-MSCs were used in MRL/lpr mice. Surprisingly, although the treatment of both HCQ and UC-MSCs could ameliorate renal damage separately, the presence of HCQ decreased unexpectedly the therapeutic effects of UC-MSCs through interfering expression of IFN-γ...
April 18, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29666957/conditioned-medium-from-umbilical-cord-mesenchymal-stem-cells-improves-nasal-mucosa-damage-by-radiation
#5
Hong-Gang Duan, Fang Ji, Chun-Quan Zheng, Jing Li, Jing Wang
OBJECTIVES: To explore therapeutic effects of conditioned medium from human umbilical cord mesenchymal stem cells (hUC-MSCs) on nasal mucosa radiation damage both in vivo and in vitro. RESULTS: The mucus cilia clearance time (7 and 30 days), degree of mucosal edema (7, 30, 90 and 180 days), cilia coverage (180 days) of concentrated conditioned medium group improved compared with radiotherapy control group. The proliferation and migration abilities of irradiated and non-irradiated nasal epithelial cells significantly increased after culture in bronchial epithelial cell growth medium (BEGM) containing 10% conditioned medium of hUC-MSCs compared to cells cultured in BEGM alone...
April 17, 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29666049/m1-and-m2-macrophages-differentially-regulate-hematopoietic-stem-cell-self-renewal-and-ex-vivo-expansion
#6
Yi Luo, Lijian Shao, Jianhui Chang, Wei Feng, Y Lucy Liu, Michele H Cottler-Fox, Peter D Emanuel, Martin Hauer-Jensen, Irwin D Bernstein, Lingbo Liu, Xing Chen, Jianfeng Zhou, Peter J Murray, Daohong Zhou
Uncovering the cellular and molecular mechanisms by which hematopoietic stem cell (HSC) self-renewal is regulated can lead to the development of new strategies for promoting ex vivo HSC expansion. Here, we report the discovery that alternative (M2)-polarized macrophages (M2-MΦs) promote, but classical (M1)-polarized macrophages (M1-MΦs) inhibit, the self-renewal and expansion of HSCs from mouse bone marrow (BM) in vitro. The opposite effects of M1-MΦs and M2-MΦs on mouse BM HSCs were attributed to their differential expression of nitric oxide synthase 2 (NOS2) and arginase 1 (Arg1), because genetic knockout of Nos2 and Arg1 or inhibition of these enzymes with a specific inhibitor abrogated the differential effects of M1-MΦs and M2-MΦs...
April 24, 2018: Blood Advances
https://www.readbyqxmd.com/read/29659011/immune-system-augmentation-via-humanization-using-stem-progenitor-cells-and-bioengineering-in-a-breast-cancer-model-study
#7
Abbas Shafiee, Jacqui A McGovern, Christoph A Lahr, Christoph Meinert, Davide Moi, Ferdinand Wagner, Marietta Landgraf, Elena De-Juan-Pardo, Roberta Mazzieri, Dietmar W Hutmacher
Despite significant advances, most current in vivo models fail to fully recapitulate the biological processes that occur in humans. Here we aimed to develop an advanced humanized model with features of an organ bone by providing different bone tissue cellular compartments including pre-osteoblasts, mesenchymal stem/stromal (MSCs), endothelial and hematopoietic cells in an engineered microenvironment. The bone compartment was generated by culturing the human MSCs, umbilical vein endothelial cells with gelatin methacryloyl hydrogels in the centre of a melt-electrospun polycaprolactone tubular scaffolds which were seeded with human pre-osteoblasts...
April 16, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29658926/evaluation-of-stem-cell-therapies-in-a-bilateral-patellar-tendon-injury-model-in-rats
#8
John R Wagner, Takashi Taguchi, Jane Y Cho, Chandrashekhar Charavaryamath, Dominique J Griffon
Regenerative medicine provides novel alternatives to conditions that challenge traditional treatments. The prevalence and morbidity of tendinopathy across species, combined with the limited healing properties of this tissue, have prompted the search for cellular therapies and propelled the development of experimental models to study their efficacy. Umbilical cord matrix-derived mesenchymal stem cells (UCM-MSC) are appealing candidates because they are abundant, easy to collect, circumvent the ethical concerns and risk of teratoma formation, yet resemble primitive embryonic stem cells more closely than adult tissue-derived MSCs...
March 30, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29652595/stem-cells-for-skeletal-muscle-tissue-engineering
#9
Molly N Pantellic, Lisa Marie Larkin
Volumetric muscle loss (VML) is a debilitating condition wherein muscle loss overwhelms the body's normal physiological repair mechanism. VML is particularly common among military service members who have sustained war injuries. Because of the high social and medical cost associated with VML and suboptimal current surgical treatments, there is great interest in developing better VML therapies. Skeletal muscle tissue engineering (SMTE) is a promising alternative to traditional VML surgical treatments that use autogenic tissue grafts, and rather uses isolated stem cells with myogenic potential to generate de novo skeletal muscle tissues to treat VML...
March 14, 2018: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/29643181/smooth-muscle-cells-differentiated-from-human-mesenchymal-stem-cells-regulated-by-microrna-mir-503-and-mir-222-5p-are-suitable-for-vascular-tissue-engineering
#10
Wenduo Gu, Xuechong Hong, Alexandra Le Bras, Witold N Nowak, Shirin Issa Bhaloo, Jiacheng Deng, Yao Xie, Yanhua Hu, Xiong Z Ruan, Qingbo Xu
Tissue-engineered vascular grafts with long-term patency are greatly needed in the clinical settings, and smooth muscle cells (SMCs) are a critical graft component. Human mesenchymal stem cells (MSCs) are used for generating SMCs and understanding the underlying regulatory mechanisms of the MSC-to-SMC differentiation process could improve SMC generation in the clinic. Here, we found that in response to stimulation of transforming growth factor-β 1 (TGFβ1), human umbilical cord-derived MSCs abundantly express the SMC markers α-smooth muscle actin (αSMA), smooth muscle protein 22 (SM22), calponin and smooth muscle myosin heavy chain (SMMHC) at both gene and protein levels...
April 11, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29630099/upregulation-of-mir-132-attenuates-osteoblast-differentiation-of-uc-mscs
#11
Z-L Xue, Y-L Meng, J-H Ge
OBJECTIVE: Wnt/β-catenin signaling pathway plays a role in upregulating expression of osteoblast (OB) specific transcriptional factor Osterix and promoting OB differentiation. It was shown that the elevation of the miR-132 level was associated with sclerotizing inhibition. Bioinformatics analysis revealed the complementary binding site between miR-132 and 3'-UTR of β-catenin. This study investigated the influence of miR-214 in regulating β-catenin expression and differentiation of umbilical cord mesenchymal stem cells (UC-MSCs) into OB...
March 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29624114/ultrastructural-analysis-of-human-umbilical-cord-derived-mscs-at-undifferentiated-stage-and-during-osteogenic-and-adipogenic-differentiation
#12
Serbay Ozkan, Basak Isildar, Mahmut Oncul, Zafer Baslar, Semih Kaleli, Meral Koyuturk
Mesenchymal stem cells (MSCs) are considered as an important tool for regenerative medicine and experimental treatments. Unveiling the ultrastructural changes during the differentiation of MSCs might help us to understand the nature of the process and to develop novel therapeutic approaches. For this purpose, human umbilical cord (hUC) was chosen as MSC source. In the first place, MSCs were isolated from sub-amniotic, intervascular and perivascular areas of hUC by enzymatic and tissue explant method to determine the most favorable region of hUC and technique for further processing...
April 6, 2018: Ultrastructural Pathology
https://www.readbyqxmd.com/read/29620445/induction-of-human-adipose-derived-mesenchymal-stem-cells-into-germ-lineage-using-retinoic-acid
#13
Haihui Liu, Mingtai Chen, Lulu Liu, Saisai Ren, Panpan Cheng, Hao Zhang
Accumulating evidence indicates that mesenchymal stem cells (MSCs) have been widely used in tissue engineering and regenerative medicine due to their multilineage differentiation potentials. Recent studies show that germ-like cells can also be derived from stem cells, such as human umbilical cord MSCs and human bone marrow MSCs in vitro. However, whether human adipose-derived MSCs (hAD-MSCs) can be induced into germ-like cells has never been reported. In this study, we isolated hAD-MSCs and confirmed that their characteristics were in accordance with that of MSCs established before...
April 2018: Cellular Reprogramming
https://www.readbyqxmd.com/read/29619744/isolation-of-human-mesenchymal-stem-cells-from-amnion-chorion-placental-decidua-and-umbilical-cord-comparison-of-four-enzymatic-protocols
#14
A B Araújo, J M Furlan, G D Salton, T Schmalfuss, L M Röhsig, L M R Silla, E P Passos, A H Paz
OBJECTIVE: To compare four enzymatic protocols for mesenchymal stem cells (MSCs) isolation from amniotic (A-MSC) and chorionic (C-MSC) membranes, umbilical cord (UC-MSC) and placental decidua (D-MSC) in order to define a robust, practical and low-cost protocol for each tissue. RESULTS: A-MSCs and UC-MSCs could be isolated from all samples using trypsin/collagenase-based protocols; C-MSCs could be isolated from all samples with collagenase- and trypsin/collagenase-based protocols; D-MSCs were isolated from all samples exclusively with a collagenase-based protocol...
April 4, 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29618900/evaluation-of-in-vitro-chondrocytic-differentiation-a-stem-cell-research-initiative-at-the-king-abdulaziz-university-kingdom-of-saudi-arabia
#15
Aisha Al-Yamani, Gauthaman Kalamegam, Farid Ahmed, Mohammed Abbas, Khalid Hussein Wali Sait, Nisreen Anfinan, Mohammad Khalid Al-Wasiyah, Etimad A Huwait, Mamdouh Gari, Mohammed Al-Qahtani
Mesenchymal stem cells (MSCs) from various sources have been used in cartilage differentiation with variable success. Therefore, it is of interest to evaluate the in vitro differentiation potential of the hWJSCs derived from the human umbilical cords into chondrocytes at the stem cell research facility at the King Abdulaziz University. hWJSCs are an attractive choice for tissue engineering and regenerative medical applications including cartilage regeneration. We evaluated the hWJSCs using classical histological and cartilage related gene expression studies...
2018: Bioinformation
https://www.readbyqxmd.com/read/29618746/mirna-142-3p-increases-radiosensitivity-in-human-umbilical-cord-blood-mononuclear-cells-by-inhibiting-the-expression-of-cd133
#16
Fang Yuan, Lu Liu, Yonghong Lei, Yi Hu
This study is to explore the molecular regulation mechanism of CD133 which is associated with malignancy and poor prognosis of blood system diseases. CD133+HUCB-MNC (human umbilical cord blood mononuclear cells) and CD133-HUCB-MNC were isolated and amplificated from umbilical cord blood, and then were exposed to different doses of radiation and subjected to a clonogenic assay. CCK-8 kit was used to detect cell viability, Annexin V-FITC/PI cell apoptosis detection kit was used for the detection of apoptotic cells and the BrdU assay was performed by flow cytometry...
April 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29615915/application-of-mesenchymal-stem-cells-for-therapeutic-agent-delivery-in-anti-tumor-treatment
#17
REVIEW
Daria S Chulpanova, Kristina V Kitaeva, Leysan G Tazetdinova, Victoria James, Albert A Rizvanov, Valeriya V Solovyeva
Mesenchymal stem cells (MSCs) are non-hematopoietic progenitor cells, which can be isolated from different types of tissues including bone marrow, adipose tissue, tooth pulp, and placenta/umbilical cord blood. There isolation from adult tissues circumvents the ethical concerns of working with embryonic or fetal stem cells, whilst still providing cells capable of differentiating into various cell lineages, such as adipocytes, osteocytes and chondrocytes. An important feature of MSCs is the low immunogenicity due to the lack of co-stimulatory molecules expression, meaning there is no need for immunosuppression during allogenic transplantation...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29615126/mesenchymal-stem-cells-and-extracellular-matrix-scaffold-promote-muscle-regeneration-by-synergistically-regulating-macrophage-polarization-toward-the-m2-phenotype
#18
Xinyu Qiu, Shiyu Liu, Hao Zhang, Bin Zhu, Yuting Su, Chenxi Zheng, Rong Tian, Miao Wang, Huijuan Kuang, Xinyi Zhao, Yan Jin
BACKGROUND: Skeletal muscle plays an important role in the body's physiology but there are still no effective treatments for volumetric muscle loss (VML) resulting from severe traumatic injury or tumor excision. Recent studies show that a tissue engineering strategy using a compound containing mesenchymal stem cells (MSCs) and decellularized extracellular matrix (ECM) scaffold generates significant regenerative effects on VML injury, but the underlying mechanisms are not fully understood...
April 3, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29608295/tbbpa-and-its-alternatives-disturb-the-early-stages-of-neural-development-by-interfering-with-the-notch-and-wnt-pathways
#19
Nuoya Yin, Shaojun Liang, Shengxian Liang, Renjun Yang, Bowen Hu, Zhanfen Qin, Aifeng Liu, Francesco Faiola
Tetrabromobisphenol A (TBBPA), as well as its alternatives Tetrabromobisphenol S (TBBPS) and Tetrachlorobisphenol A (TCBPA), are widely used halogenated flame retardants. Their high detection rates in human breast milk and umbilical cord serum have raised wide concerns about their adverse effects on human fetal development. In this study, we evaluated the cytotoxicity and neural developmental toxicity of TBBPA, TBBPS and TCBPA with a mouse embryonic stem cell (mESC) system, at human body fluid and environmental relevant doses...
April 2, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29600162/fetal-mesenchymal-stromal-cells-an-opportunity-for-prenatal-cellular-therapy
#20
REVIEW
Rachel Sagar, Lilian Walther-Jallow, Anna L David, Cecilia Götherström, Magnus Westgren
Purpose of Review: The aim of the study is to provide an overview on the possibility of treating congenital disorders prenatally with mesenchymal stromal cells (MSCs). Recent Findings: MSCs have multilineage potential and a low immunogenic profile and are immunomodulatory and more easy to expand in culture. Their ability to migrate, engraft and differentiate, or act via a paracrine effect on target tissues makes MSCs candidates for clinical therapies. Fetal and extra-fetal MSCs offer higher therapeutic potential compared to MSCs derived from adult sources...
2018: Current Stem Cell Reports
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