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Cord blood stem cells

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https://www.readbyqxmd.com/read/28924462/quantification-of-active-and-latent-form-of-human-cytomegalovirus-infection-in-umbilical-cord-blood-donors-by-real-time-pcr
#1
E Abedi, M Kheirandish, Z Sharifi, S Samiee, P Kokhaei, Z Pourpak, M J Ashraf
BACKGROUND: Umbilical cord blood (UCB) is believed to be a highly valuable source of hematopoietic stem cells for transplantation. Objective: To investigate the prevalence of active and latent human cytomegalovirus (CMV) infection in UCB donors in Iranian population. METHODS: A total of 825 UCB samples was collected under standard procedures and analyzed for the presence of CMV DNAs in buffy coat (latent infection) and plasma (active infection). DNA was extracted from buffy coat and plasma samples separately and tested with quantitative real-time PCR...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28919991/umbilical-cord-blood-cd34-progenitor-derived-nk-cells-efficiently-kill-ovarian-cancer-spheroids-and-intraperitoneal-tumors-in-nod-scid-il2rg-null-mice
#2
Janneke S Hoogstad-van Evert, Jeannette Cany, Dirk van den Brand, Manon Oudenampsen, Roland Brock, Ruurd Torensma, Ruud L Bekkers, Joop H Jansen, Leon F Massuger, Harry Dolstra
Adoptive transfer of allogeneic natural killer (NK) cells is an attractive therapy approach against ovarian carcinoma. Here, we evaluated the potency of highly active NK cells derived from human CD34+ haematopoietic stem and progenitor cells (HSPC) to infiltrate and mediate killing of human ovarian cancer spheroids using an in vivo-like model system and mouse xenograft model. These CD56+Perforin+ HSPC-NK cells were generated under stroma-free conditions in the presence of StemRegenin-1, IL-15, and IL-12, and exerted efficient cytolytic activity and IFNγ production toward ovarian cancer monolayer cultures...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28919421/exosomes-derived-from-human-umbilical-cord-blood-mesenchymal-stem-cells-stimulates-rejuvenation-of-human-skin
#3
Yoon-Jin Kim, Sae Mi Yoo, Hwan Hee Park, Hye Jin Lim, Yu-Lee Kim, Seunghee Lee, Kyung-Sun Kang, Kwang-Won Seo
Human umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs) play an important role in cutaneous wound healing, and recent studies suggested that MSC-derived exosomes activate several signaling pathways, which are conducive in wound healing and cell growth. In this study, we investigated the roles of exosomes that are derived from USC-CM (USC-CM Exos) in cutaneous collagen synthesis and permeation. We found that USC-CM has various growth factors associated with skin rejuvenation. Our in vitro results showed that USC-CM Exos integrate in Human Dermal Fibroblasts (HDFs) and consequently promote cell migration and collagen synthesis of HDFs...
September 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28910956/-modulation-of-umbilical-cord-blood-mesenchymal-stem-cells-on-treg-cells-in-the-patients-with-aplastic-anemia
#4
Y N Cao, F Zhou, N X Song, Y Fang, R Guan
Objective: To research the modulation of Umbilical cord blood mesenchymal stem cells on the number and function of Treg cells in the patients with aplastic anemia, as well as the expression of LFA-1 on Treg cells. Methods: A total of 20 newly diagnosed NSAA patients were collected from May 2015 to Jun 2016 in Department of Hematopathy, General Hospital of Jinan Military, and 10 healthy volunteers were recruited as controls. Separation of the patients and controls with peripheral blood mononuclear cells were divided into two groups, including PBMCs culture alone, PBMCs co-culture with UC-MSCs, application of flow cytometry detect respectively the proportion of the Treg cells and the expression of LFA-1 on Treg cells under different culture conditions...
September 12, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28899930/therapeutic-gene-editing-in-cd34-hematopoietic-progenitors-from-fanconi-anemia-patients
#5
Begoña Diez, Pietro Genovese, Francisco J Roman-Rodriguez, Lara Alvarez, Giulia Schiroli, Laura Ugalde, Sandra Rodriguez-Perales, Julian Sevilla, Cristina Diaz de Heredia, Michael C Holmes, Angelo Lombardo, Luigi Naldini, Juan Antonio Bueren, Paula Rio
Gene targeting constitutes a new step in the development of gene therapy for inherited diseases. Although previous studies have shown the feasibility of editing fibroblasts from Fanconi anemia (FA) patients, here we aimed at conducting therapeutic gene editing in clinically relevant cells, such as hematopoietic stem cells (HSCs). In our first experiments, we showed that zinc finger nuclease (ZFN)-mediated insertion of a non-therapeutic EGFP-reporter donor in the AAVS1 "safe harbor" locus of FA-A lymphoblastic cell lines (LCLs), indicating that FANCA is not essential for the editing of human cells...
September 12, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28887325/at-least-20-donor-myeloid-chimerism-is-necessary-to-reverse-the-sickle-phenotype-after-allogeneic-hsct
#6
Courtney D Fitzhugh, Stefan Cordes, Tiffani Taylor, Wynona Coles, Katherine Roskom, Mary Link, Matthew M Hsieh, John F Tisdale
Novel curative therapies employing genetic transfer of normal globin-producing genes into autologous hematopoietic stem cells (HSCs) are in clinical trials for patients with sickle cell disease (SCD). The percentage of transferred globin necessary to cure SCD is currently not known. In the setting of allogeneic nonmyeloablative hematopoietic stem cell transplants (HSCT), stable mixed chimerism is sufficient to reverse the disease. We regularly monitored 67 patients after HSCT. After initially robust engraftment, three of these patients experienced declining donor myeloid chimerism (DMC) levels with eventual return of disease...
September 8, 2017: Blood
https://www.readbyqxmd.com/read/28886069/osmotic-behaviour-of-human-mesenchymal-stem-cells-implications-for-cryopreservation
#7
Elisa Casula, Gino P Asuni, Valeria Sogos, Sarah Fadda, Francesco Delogu, Alberto Cincotti
Aimed at providing a contribution to the optimization of cryopreservation processes, the present work focuses on the osmotic behavior of human mesenchymal stem cells (hMSCs). Once isolated from the umbilical cord blood (UCB) of three different donors, hMSCs were characterized in terms of size distribution and their osmotic properties suitably evaluated through the exposure to hypertonic and isotonic aqueous solutions at three different temperatures. More specifically, inactive cell volume and cell permeability to water and di-methyl sulfoxide (DMSO) were measured, being cell size determined using impedance measurements under both equilibrium and dynamic conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28885597/hypoxia-is-a-critical-parameter-for-chondrogenic-differentiation-of-human-umbilical-cord-blood-mesenchymal-stem-cells-in-type-i-iii-collagen-sponges
#8
Tangni Gómez-Leduc, Mélanie Desancé, Magalie Hervieu, Florence Legendre, David Ollitrault, Claire de Vienne, Michel Herlicoviez, Philippe Galéra, Magali Demoor
Umbilical cord blood (UCB) is an attractive alternative to bone marrow for isolation of mesenchymal stem cells (MSCs) to treat articular cartilage defects. Here, we set out to determine the growth factors (bone morphogenetic protein 2 (BMP-2) and transforming growth factor-β (TGF-β1)) and oxygen tension effects during chondrogenesis of human UCB-MSCs for cartilage engineering. Chondrogenic differentiation was induced using 3D cultures in type I/III collagen sponges with chondrogenic factors in normoxia (21% O₂) or hypoxia (<5% O₂) for 7, 14 and 21 days...
September 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28885289/mesenchymal-stem-cell-levels-of-human-spinal-tissues
#9
Liam Harris, C Thomas Vangsness
STUDY DESIGN: .: Systematic Review. OBJECTIVE: .: The aim of this study was to investigate, quantify, compare and compile the various mesenchymal stem cell tissue sources within human spinal tissues to act as a compendium for clinical and research application. SUMMARY OF BACKGROUND DATA: .: Recent years have seen a dramatic increase in academic and clinical understanding of human mesenchymal stem cells (MSCs). Previously limited to cells isolated from bone marrow, the past decade has illicited the characterization and isolation of human MSCs from adipose, bone marrow, synovium, muscle, periosteum, peripheral blood, umbilical cord, placenta and numerous other tissues...
September 6, 2017: Spine
https://www.readbyqxmd.com/read/28878831/the-mirage-of-long-term-vital-benefice-risk-for-the-beginning-of-life
#10
Ramona Mohora, Decebal Hudita, Silvia-Maria Stoicescu
INTRODUCTION: Cord blood is the "life" of the fetus until birth. After delivery, the newborn is "single" and forced to adapt to live using the latest resources provided by the mother. Those who believe that a newborn is just a miniature independent adult are just trusting one of the illusions of secular medicine. Cord blood contains precious cells, stem, red and white blood cells. T cells as a part of white blood cells prevent infections and other illnesses. Cochrane Database 2013 published a study reporting the role of delayed umbilical cord clamping for the benefit of infants...
January 2017: Mædica
https://www.readbyqxmd.com/read/28874910/different-angiogenic-potentials-of-mesenchymal-stem-cells-derived-from-umbilical-artery-umbilical-vein-and-wharton-s-jelly
#11
Lu Xu, Jianjun Zhou, Jingyu Liu, Yong Liu, Lei Wang, Ruiwei Jiang, Zhenyu Diao, Guijun Yan, Bruno Pèault, Haixiang Sun, Lijun Ding
Human mesenchymal stem cells derived from the umbilical cord (UC) are a favorable source for allogeneic cell therapy. Here, we successfully isolated the stem cells derived from three different compartments of the human UC, including perivascular stem cells derived from umbilical arteries (UCA-PSCs), perivascular stem cells derived from umbilical vein (UCV-PSCs), and mesenchymal stem cells derived from Wharton's jelly (WJ-MSCs). These cells had the similar phenotype and differentiation potential toward adipocytes, osteoblasts, and neuron-like cells...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28863113/the-distribution-of-transplanted-umbilical-cord-mesenchymal-stem-cells-in-large-blood-vessel-of-experimental-design-with-traumatic-brain-injury
#12
Hua-Jiang Dong, Chong-Zhi Shang, Gang Li, Qing Niu, Yue-Chen Luo, Yue Yang, Hui-Peng Meng, Hui-Juan Yin, Hai-Xia Zhang, Ming-Liang Zhao, Ling Lin
The authors aim to track the distribution of human umbilical cord mesenchymal stem cells (MSCs) in large blood vessel of traumatic brain injury -rats through immunohistochemical method and small animal imaging system. After green fluorescent protein (GFP) gene was transfected into 293T cell, virus was packaged and MSCs were transfected. Mesenchymal stem cells containing GFP were transplanted into brain ventricle of rats when the infection rate reaches 95%. The immunohistochemical and small animal imaging system was used to detect the distribution of MSCs in large blood vessels of rats...
September 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28860940/limbic-encephalitis-a%C3%A2-report-of-four-cases
#13
Żanna Pastuszak, Adam Stępień, Kazimierz Tomczykiewicz, Renata Piusińska-Macoch, Joanna Kordowska, Dariusz Galbarczyk, Jarosław Świstak
Usually limbic encephalitis (LE) is a paraneoplastic neurologic syndrome. LE symptoms can precede cancer even by a few years. Almost 50% of LE cases are connected with small cell lung carcinoma. Testis and breast cancers, granulomatous disease, thymoma, and teratomas are also often connected with LE. Other cases have infectious and autoimmunological aetiology. In LE limbic system dysfunction is observed, and it is accompanied by cerebellum and brain stem abnormalities as well as polyneuropathy. Paraneoplastic limbic encephalitis is sometimes a part of larger syndrome in which brain stem and spinal cord are involved in an inflammatory process called paraneoplastic encephalomyelitis...
2017: Central-European Journal of Immunology
https://www.readbyqxmd.com/read/28860613/the-stem-cell-regulator-pedf-is-dispensable-for-maintenance-and-function-of-hematopoietic-stem-cells
#14
Emma Rörby, Matilda Billing, Maria Dahl, Sarah Warsi, Silja Andradottir, Kenichi Miharada, Kavitha Siva, Jan-Ingvar Jönsson, Ulrika Blank, Göran Karlsson, Stefan Karlsson
Pigment epithelium derived factor (PEDF), a ubiquitously expressed 50 kDa secreted glycoprotein, was recently discovered to regulate self-renewal of neural stem cells and have a supportive effect on human embryonic stem cell growth. Here, we analyzed expression of PEDF in the murine hematopoietic stem cell (HSC) compartments and found that PEDF is highly expressed in primary long-term HSCs. Therefore, we characterized the hematopoietic system in a knockout mouse model for PEDF and using this model we surprisingly found that PEDF is dispensable for HSC regulation...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28859977/lowering-the-concentration-affects-the-migration-and-viability-of-intracerebroventricular-delivered-human-mesenchymal-stem-cells
#15
Hyeong Seop Kim, Na Kyung Lee, Dongkyeom Yoo, Jeongmin Lee, Soo Jin Choi, Wonil Oh, Jong Wook Chang, Duk L Na
Due to their widely known therapeutic benefits, mesenchymal stem cells have been proposed as a novel treatment option for a wide range of diseases including Alzheimer's disease. To maximize these benefits, critical factors such as delivery route, cell viability, and cell migration must be accounted for. Out of the various delivery routes to the brain, the intracerebroventricular (ICV) route stands out due to the widespread distribution that can occur via cerebrospinal fluid flow. The major objective of this present study was to observe how altering cell concentration influences the migration and viability of human umbilical cord blood derived-mesenchymal stem cells (hUCB-MSCs), delivered via ICV injection, in the brains of wild-type (WT) mice...
August 30, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28855403/developmental-outcomes-of-cord-blood-transplantation-for-krabbe-disease-a-15-year-study
#16
Matthew D Wright, Michele D Poe, Anthony DeRenzo, Shilpa Haldal, Maria L Escolar
OBJECTIVE: To describe long-term outcomes of children with early-infantile Krabbe disease who underwent hematopoietic stem cell transplantation (HSCT) in the first 7 weeks of life. METHODS: In this prospective longitudinal study, evaluations performed at baseline and follow-up included brain imaging, neurodiagnostic tests, and neurobehavioral evaluations. RESULTS: Of the 18 patients in this study (11 girls, 7 boys; mean follow-up 9.5 years, range 4-15), 5 died (3 of peritransplant complications, 1 of a surgical complication unrelated to Krabbe disease, 1 of disease progression)...
August 30, 2017: Neurology
https://www.readbyqxmd.com/read/28853073/human-umbilical-cord-mesenchymal-stromal-cells-support-viability-of-umbilical-cord-blood-hematopoietic-stem-cells-but-not-the-stemness-of-their-progeny-in-co-culture
#17
Yu A Romanov, N E Volgina, E E Balashova, N V Kabaeva, T N Dugina, G T Sukhikh
Cell-cell interactions and the ability of mesenchymal stromal cells to support the expansion of hematopoietic progenitor cells were studied in co-culture of human umbilical cord tissue-derived mesenchymal stromal cells and nucleated umbilical cord blood cells. It was found that hematopoietic stem cells from the umbilical cord blood are capable to adhere to mesenchymal stromal cells and proliferate during 3-4 weeks in co-culture. However, despite the formation of hematopoietic foci and accumulation of CD34(+) and CD133(+) cells in the adherent cell fraction, the ability of newly generated blood cells to form colonies in semi-solid culture medium was appreciably reduced...
August 29, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28851944/therapeutic-effect-of-human-adipose-derived-stem-cells-and-their-secretome-in-experimental-diabetic-pain
#18
Anna T Brini, Giada Amodeo, Lorena M Ferreira, Anna Milani, Stefania Niada, Giorgia Moschetti, Silvia Franchi, Elisa Borsani, Luigi F Rodella, Alberto E Panerai, Paola Sacerdote
Painful neuropathy is one of the complications of diabetes mellitus that adversely affects patients'quality of life. Pharmacological treatments are not fully satisfactory, and novel approaches needed. In a preclinical mouse model of diabetes the effect of both human mesenchymal stromal cells from adipose tissue (hASC) and their conditioned medium (hASC-CM) was evaluated. Diabetes was induced by streptozotocin. After neuropathic hypersensitivity was established, mice were intravenously injected with either 1 × 10(6) hASC or with CM derived from 2 × 10(6) hASC...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28844947/outcome-of-second-transplantation-using-umbilical-cord-blood-for-graft-failure-after-allogeneic-hematopoietic-stem-cell-transplantation-for-aplastic-anemia
#19
Yasushi Onishi, Takehiko Mori, Shinichi Kako, Hideo Koh, Naoyuki Uchida, Tadakazu Kondo, Takeshi Kobayashi, Hiromasa Yabe, Toshihiro Miyamoto, Koji Kato, Ritsuro Suzuki, Shinji Nakao, Hirohito Yamazaki
Graft failure (GF) is the most critical life-threatening complication of allogeneic hematopoietic stem cell transplantation (HSCT) for aplastic anemia, for which a second transplantation would be the only effective treatment. However, optimal transplant procedures have not been established for the second transplantation in this setting. The outcome of 22 patients with aplastic anemia, aged ≥16 years, who underwent umbilical cord blood transplantation for GF after the first HSCT, was retrospectively analyzed using the registry database of the Japan Society for Hematopoietic Cell Transplantation...
August 24, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28844373/blood-derived-eye-drops-for-the-treatment-of-cornea-and-ocular-surface-diseases
#20
REVIEW
Giuseppe Giannaccare, Piera Versura, Marina Buzzi, Laura Primavera, Marco Pellegrini, Emilio C Campos
The use of blood derived eye drops for the treatment of ocular surface disorders has become increasingly popular in recent years. The mechanism of action is the stimulation of cellular proliferation and migration by supplying an active mixture of growth factors and cytokines at the ocular surface, thus mimicking the function of the lacking natural tears. Blood derived eye drops have been used in the last decades for the treatment of a variety of ocular surface diseases, including mainly dry eye disease, persistent corneal epithelial defect, corneal ulcer, ocular surface burn, recurrent corneal erosion and limbal stem-cell deficiency...
August 8, 2017: Transfusion and Apheresis Science
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