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Stem cell mobilization

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https://www.readbyqxmd.com/read/29777574/factors-influencing-the-umbilical-cord-blood-stem-cell-industry-an-evolving-treatment-landscape
#1
REVIEW
Carla Dessels, Marco Alessandrini, Michael Sean Pepper
Hematopoietic stem cell transplantation (HSCT) is common practice today for life threatening malignant and non-malignant diseases of the blood and immune systems. Umbilical cord blood (UCB) is rich in hematopoietic stem cells (HSCs) and is an attractive alternative to harvesting HSCs from bone marrow or when mobilized into peripheral blood. One of the most appealing attributes of UCB is that it can be banked for future use and hence provides an off-the-shelf solution for patients in urgent need of a transplantation...
May 18, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29775645/mesenchymal-stromal-cells-induce-a-permissive-state-in-the-bone-marrow-that-enhances-g-csf-induced-hematopoietic-stem-cell-mobilization-in-mice
#2
Evert-Jan F M de Kruijf, Rob Zuijderduijn, Marjolein C Stip, Willem E Fibbe, Melissa van Pel
Mesenchymal stromal cells (MSC) support hematopoietic stem cells (HSC) in vivo and enhance HSC engraftment and hematopoietic recovery upon co-transplantation with HSC. These data have led to the hypothesis that MSC may impact the HSC niche, leading to changes in HSC retention and trafficking. We studied the effect of MSC administration on the HSC compartment in the bone marrow (BM) in mice. Following injection of MSC, HSC numbers in the BM were decreased coinciding with an increased cell cycle activity compared to PBS-injected controls...
May 15, 2018: Experimental Hematology
https://www.readbyqxmd.com/read/29774991/aggregate-mesenchymal-stem-cell-delivery-ameliorates-the-regenerative-niche-for-muscle-repair
#3
Marissa A Ruehle, Hazel Y Stevens, Aaron M Beedle, Robert E Guldberg, Jarrod A Call
Duchenne muscular dystrophy (DMD) is a severe muscle wasting disease due to the absence of the dystrophin protein from the muscle cell membrane which renders the muscle susceptible to continuous damage. In DMD patients, muscle weakness, together with cycles of degeneration/regeneration and replacement with non-contractile tissue, limit mobility and lifespan. Since the loss of dystrophin result in loss of polarity and a reduction in the number of self-renewing satellite cells, it is postulated that these patients could achieve an improved quality of life if delivered cells could restore satellite cell function...
May 18, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29770133/peripheral-blood-stem-cell-mobilization-in-healthy-donors-by-granulocyte-colony-stimulating-factor-causes-preferential-mobilization-of-lymphocyte-subsets
#4
Guro Kristin Melve, Elisabeth Ersvaer, Geir Egil Eide, Einar K Kristoffersen, Øystein Bruserud
Background: Allogeneic hematopoietic stem cell transplantation is associated with a high risk of immune-mediated post-transplant complications. Graft depletion of immunocompetent cell subsets is regarded as a possible strategy to reduce this risk without reducing antileukemic immune reactivity. Study design and methods: We investigated the effect of hematopoietic stem cell mobilization with granulocyte colony-stimulating factor (G-CSF) on peripheral blood and stem cell graft levels of various T, B, and NK cell subsets in healthy donors...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29766687/structured-illumination-to-spatially-map-chromatin-motions
#5
Keith Bonin, Amanda Smelser, Naike Salvador Moreno, George Holzwarth, Kevin Wang, Preston Levy, Pierre-Alexandre Vidi
We describe a simple optical method that creates structured illumination of a photoactivatable probe and apply this method to characterize chromatin motions in nuclei of live cells. A laser beam coupled to a diffractive optical element at the back focal plane of an excitation objective generates an array of near diffraction-limited beamlets with FWHM of 340  ±  30  nm, which simultaneously photoactivate a 7  ×  7 matrix pattern of GFP-labeled histones, with spots 1.70  μm apart. From the movements of the photoactivated spots, we map chromatin diffusion coefficients at multiple microdomains of the cell nucleus...
May 2018: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29766024/integrating-hdad5-35-vectors-as-a-new-platform-for-hsc-gene-therapy-of-hemoglobinopathies
#6
Chang Li, Nikoletta Psatha, Hongjie Wang, Manvendra Singh, Himanshu Bhusan Samal, Wenli Zhang, Anja Ehrhardt, Zsuzsanna Izsvák, Thalia Papayannopoulou, André Lieber
We generated an integrating, CD46-targeted, helper-dependent adenovirus HDAd5/35++ vector system for hematopoietic stem cell (HSC) gene therapy. The ∼12-kb transgene cassette included a β-globin locus control region (LCR)/promoter driven human γ-globin gene and an elongation factor alpha-1 (EF1α)-mgmtP140K expression cassette, which allows for drug-controlled increase of γ-globin-expressing erythrocytes. We transduced bone marrow lineage-depleted cells from human CD46-transgenic mice and transplanted them into lethally irradiated recipients...
June 15, 2018: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29764770/haploidentical-stem-cell-transplantation-bone-marrow-vs-peripheral-blood
#7
REVIEW
Zafer Gulbas
Hematopoietic stem cells may be obtained by collection of bone marrow, mobilization and collection of peripheral blood stem cells or umbilical cord blood. Transplantation of peripheral blood hematopoietic cells has increased due to faster engraftment and practicability in both the related, unrelated or haploidentical setting. We reviewed the question of which stem cell source - bone marrow (BM) or peripheral blood (PBSC) - is the most suitable for individuals undergoing haploidentical stem cell transplantation...
April 19, 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29753677/multicenter-phase-1-2-application-of-adenovirus-specific-t-cells-in-high-risk-pediatric-patients-after-allogeneic-stem-cell-transplantation
#8
Winnie Ip, Juliana M F Silva, Hubert Gaspar, Arindam Mitra, Shreenal Patel, Kanchan Rao, Robert Chiesa, Persis Amrolia, Kimberly Gilmour, Gul Ahsan, Mary Slatter, Andrew R Gennery, Robert F Wynn, Paul Veys, Waseem Qasim
BACKGROUND: Adenovirus (ADV) reactivation can cause significant morbidity and mortality in children after allogeneic stem cell transplantation. Antiviral drugs can control viremia, but viral clearance requires recovery of cell-mediated immunity. METHOD: This study was an open-label phase 1/2 study to investigate the feasibility of generating donor-derived ADV-specific T cells (Cytovir ADV, Cell Medica) and to assess the safety of pre-emptive administration of ADV-specific T cells in high-risk pediatric patients after allogeneic hematopoietic stem cell transplantation (HSCT) to treat adenoviremia...
May 9, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29753160/get-outta-here-addition-of-mobilizing-agents-to-conditioning-regimen-improves-donor-engraftment-after-allogeneic-hematopoietic-stem-cell-transplantation-for-wiskott-aldrich-syndrome
#9
Michael P Rettig
No abstract text is available yet for this article.
May 9, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29752867/topical-application-of-culture-expanded-cd34-umbilical-cord-blood-cells-from-frozen-units-accelerates-healing-of-diabetic-skin-wounds-in-mice
#10
Jennifer Whiteley, Theresa Chow, Hibret Adissu, Armand Keating, Ian M Rogers
Chronic and nonhealing wounds are constant health issues facing patients with type 2 diabetes. As the incidence of type 2 diabetes mellitus (T2DM) increases, the incidence of chronic wounds and amputations will rise. T2DM is associated with peripheral arterial occlusive disease, which leads to the development of nonhealing skin ulcers after minor trauma. Patients develop severe pain limiting their mobility and ability to work and take care of themselves thus putting a significant burden on the family and society...
May 12, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29749381/effect-of-bmi1-over-expression-on-gene-expression-in-adult-and-embryonic-murine-neural-stem-cells
#11
Mythily Ganapathi, Nathan C Boles, Carol Charniga, Steven Lotz, Melissa Campbell, Sally Temple, Randall H Morse
The ability of isolated neural stem cells (NSCs) to proliferate as neurospheres is indicative of their competence as stem cells, and depends critically on the polycomb group (PcG) member Bmi1: knockdown of Bmi1 results in defective proliferation and self-renewal of isolated NSCs, whereas overexpression of Bmi1 enhances these properties. Here we report genome-wide changes in gene expression in embryonic and adult NSCs (eNSCs and aNSCs) caused by overexpression of Bmi1. We find that genes whose expression is altered by perturbations in Bmi1 levels in NSCs are mostly distinct from those affected in other multipotent stem/progenitor cells, such as those from liver and lung, aside from a small core of common targets that is enriched for genes associated with cell migration and mobility...
May 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29745539/-endothelial-injury-and-its-repair-strategies-after-intravascular-stents-implantation
#12
REVIEW
Yadong Xi, Yuhua Huang, Ruolin Du, Yazhou Wang, Guixue Wang, Tieying Yin
Coronary atherosclerotic heart disease is a serious threat to human life and health. In recent years, the main treatment for it is to implant the intravascular stent into the lesion to support blood vessels and reconstruct blood supply. However, a large number of experimental results showed that mechanical injury and anti-proliferative drugs caused great damage after stent implantation, and increased in-stent restenosis and late thrombosis risk. Thus, maintaining the integrity and normal function of the endothelium can significantly reduce the rate of thrombosis and restenosis...
April 1, 2018: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29744773/cd271-cxcr7-cxcr4-and-cd133-stem-progenitor-cells-and-clinical-characteristics-of-acute-ischemic-stroke-patients
#13
Anna Gójska-Grymajło, Maciej Zieliński, Dariusz Gąsecki, Kamil Kowalczyk, Mariusz Kwarciany, Barbara Seroczyńska, Walenty M Nyka
Ischemic stroke causes mobilization of various groups of progenitor cells from bone marrow to bloodstream and this correlates with the neurological status of stroke patients. The goal of our study was to identify the activity of chosen progenitor/stem cells in the peripheral blood of acute ischemic stroke patients in the first 7 days after the incident, through associations between the levels of the cells and clinical features of the patients. Thirty-three acute ischemic stroke patients and 15 non-stroke control subjects had their venous blood collected repeatedly in order to assess the levels of the CD45-CD34 + CD271+, the CD45-CD34 + CXCR4+, the CD45-CD34 + CXCR7+, and the CD45-CD34 + CD133+ stem/progenitor cells by means of flow cytometry...
May 9, 2018: Neuromolecular Medicine
https://www.readbyqxmd.com/read/29743075/clinical-grade-generation-of-peptide-stimulated-cmv-ebv-specific-t-cells-from-g-csf-mobilized-stem-cell-grafts
#14
Regina Gary, Michael Aigner, Stephanie Moi, Stefanie Schaffer, Anja Gottmann, Stefanie Maas, Robert Zimmermann, Jürgen Zingsem, Julian Strobel, Andreas Mackensen, Josef Mautner, Andreas Moosmann, Armin Gerbitz
BACKGROUND: A major complication after allogeneic hematopoietic stem cell transplantation (aSCT) is the reactivation of herpesviruses such as cytomegalovirus (CMV) and Epstein-Barr virus (EBV). Both viruses cause significant mortality and compromise quality of life after aSCT. Preventive transfer of virus-specific T cells can suppress reactivation by re-establishing functional antiviral immune responses in immunocompromised hosts. METHODS: We have developed a good manufacturing practice protocol to generate CMV/EBV-peptide-stimulated T cells from leukapheresis products of G-CSF mobilized and non-mobilized donors...
May 9, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29732993/endothelial-progenitor-cells-as-molecular-targets-in-vascular-senescence-and-repair
#15
Divya Rana, Saurabh Sharma
Endothelial progenitor cells are circulating blood cells derived from various sources like bone marrow, spleen, umbilical cord, liver, kidney and other sources that play a vital role in the regeneration of endothelial lining of blood vessels and wound repair. There are two types of EPCs, early EPCs and late EPCs. EPCs are believed to originate from hematopoietic stem cells and mesenchymal stem cells. The mobilization of progenitor cells from bone marrow to the peripheral circulation is highly regulated under both normal physiological conditions and stress...
May 1, 2018: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29731423/evaluation-of-a-new-continuous-mononuclear-cell-collection-procedure-in-a-single-transplant-center-cohort-enriched-for-al-amyloidosis-patients
#16
Anita Pudusseri, India Smith, Diane Sarnacki, Dina Brauneis, Anthony Shelton, Vaishali Sanchorawala, J Mark Sloan, Shayna Sarosiek, Karen Quillen
BACKGROUND: The Spectra Optia continuous mononuclear cell (CMNC) program is newly available, and herein validated in a single-center cohort enriched with AL amyloidosis patients to collect a target CD34+ yield of 2.5 × 106 cells/kg within 2 days. METHODS: Consecutive autologous transplant patients in 2016 are included. Patients undergo leukapheresis with Optia CMNC and Spectra v4.7 over a 2-day cycle. Data collection includes collection efficiency, adverse events and engraftment kinetics...
April 26, 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29725032/novel-evidence-that-extracellular-nucleotides-and-purinergic-signaling-induce-innate-immunity-mediated-mobilization-of-hematopoietic-stem-progenitor-cells
#17
Mateusz Adamiak, Kamila Bujko, Monika Cymer, Monika Plonka, Talita Glaser, Magda Kucia, Janina Ratajczak, Henning Ulrich, Ahmed Abdel-Latif, Mariusz Z Ratajczak
Pharmacological mobilization of hematopoietic stem progenitor cells (HSPCs) from bone marrow (BM) into peripheral blood (PB) is a result of mobilizing agent-induced "sterile inflammation" in the BM microenvironment due to complement cascade (ComC) activation. Here we provide evidence that ATP, as an extracellular nucleotide secreted in a pannexin-1-dependent manner from BM cells, triggers activation of the ComC and initiates the mobilization process. This process is augmented in a P2X7 receptor-dependent manner, and P2X7-KO mice are poor mobilizers...
March 30, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29724902/phase-i-trial-of-plerixafor-combined-with-decitabine-in-newly-diagnosed-older-patients-with-acute-myeloid-leukemia
#18
Gail J Roboz, Ellen K Ritchie, Yulia Dault, Linda Lam, Danielle C Marshall, Nicole M Cruz, Hsiao-Ting C Hsu, Duane C Hassane, Paul J Christos, Cindy Ippoliti, Joseph M Scandura, Monica L Guzman
Acute myeloid leukemia carries a dismal prognosis in older patients. The objective of this study was to investigate the safety and efficacy of decitabine combined with the CXCR4 antagonist plerixafor in newly diagnosed older patients with acute myeloid leukemia and to evaluate the effects of plerixafor on leukemia stem cells. Patients were treated with monthly cycles of decitabine 20 mg/m2 days 1-10 and escalating doses of plerixafor (320-810 mcg/kg) days 1-5. Sixty-nine patients were treated, with overall response rate 43%...
May 3, 2018: Haematologica
https://www.readbyqxmd.com/read/29723594/a-single-exercise-bout-augments-adenovirus-specific-t-cell-mobilization-and-function
#19
Hawley E Kunz, Guillaume Spielmann, Nadia H Agha, Daniel P O'Connor, Catherine M Bollard, Richard J Simpson
Adoptive transfer of virus-specific T-cells (VSTs) effectively treats viral infections following allogeneic hematopoietic stem cell transplantation (alloHSCT), but logistical difficulties have limited widespread availability of VSTs as a post-transplant therapeutic. A single exercise bout mobilizes VSTs specific for latent herpesviruses (i.e. CMV and EBV) to peripheral blood and augments their ex vivo expansion. We investigated whether exercise exerts similar effects on T-cells specific for a NON-latent virus such as adenovirus, which is a major contributor to infection-related morbidity and mortality after alloHSCT...
April 30, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29721049/protein-arginine-methyltransferase-8-gene-enhances-the-colon-cancer-stem-cell-csc-function-by-upregulating-the-pluripotency-transcription-factor
#20
Haishan Lin, Bin Wang, Jing Yu, Jing Wang, Qin Li, Bangwei Cao
Objective: Cancer stem cells play a crucial role in tumor multidrug resistance and metastasis, which can produce heterogeneous tumor cells and have self-renewal ability. The related literature reported that PRMT8 was overexpressed in tumor stem cells and pluripotent stem cells. However, it's unclear how PRMT8 acts on the stemness of colon tumor cells. This study is designed to detect functions by transfecting with PRMT8 plasmid to colon cancer cells. Methods: In this study we investigated colon cancer cell sphere and its differential expression of PRMT8 compared with colon cancer cells grown by static adherence...
2018: Journal of Cancer
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