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Peripheral blood stem cells

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https://www.readbyqxmd.com/read/29449085/the-simultaneous-isolation-of-multiple-high-and-low-frequent-t-cell-populations-from-donor-peripheral-blood-mononuclear-cells-using-the-major-histocompatibility-complex-i-streptamer-isolation-technology
#1
Marthe C J Roex, Lois Hageman, Matthias T Heemskerk, Sabrina A J Veld, Ellis van Liempt, Michel G D Kester, Lothar Germeroth, Christian Stemberger, J H Frederik Falkenburg, Inge Jedema
BACKGROUND: Adoptive transfer of donor-derived T cells can be applied to improve immune reconstitution in immune-compromised patients after allogeneic stem cell transplantation. The separation of beneficial T cells from potentially harmful T cells can be achieved by using the major histocompatibility complex (MHC) I-Streptamer isolation technology, which has proven its feasibility for the fast and pure isolation of T-cell populations with a single specificity. We have analyzed the feasibility of the simultaneous isolation of multiple antigen-specific T-cell populations in one procedure by combining different MHC I-Streptamers...
February 12, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29446445/lenograstim-5-%C3%A2%C2%B5g-kg-is-not-superior-to-biosimilar-filgrastim-10-%C3%A2%C2%B5g-kg-in-lymphoma-patients-undergoing-peripheral-blood-stem-cell-mobilization-after-chemotherapy-preliminary-results-from-a-prospective-randomized-study
#2
Francesco Marchesi, Michele Vacca, Diana Giannarelli, Francesco Ipsevich, Annino Pandolfi, Svitlana Gumenyuk, Daniela Renzi, Francesca Palombi, Francesco Pisani, Atelda Romano, Antonio Spadea, Elena Papa, Marco Canfora, Luca Pierelli, Andrea Mengarelli
BACKGROUND: Randomized trials comparing chemomobilization efficiency between lenograstim and biosimilar filgrastim are lacking. Our previous retrospective study suggested that lenograstim could be more effective than biosimilar filgrastim when used at the same conventional dosage (5 µg/kg) only in lymphoma patients undergoing peripheral blood stem cell mobilization. We planned a prospective randomized study comparing lenograstim 5 µg/kg with biosimilar filgrastim 10 µg/kg to verify the hypothesis of lenograstim superiority even at half the dosage (stress test)...
February 15, 2018: Transfusion
https://www.readbyqxmd.com/read/29446074/a-hitchhiker-s-guide-to-humanized-mice-new-pathways-to-studying-viral-infections
#3
REVIEW
J K Skelton, A M Ortega-Prieto, M Dorner
Humanized mice are increasingly appreciated as an incredibly powerful platform for infectious disease research. The often very narrow species tropism of many viral infections, coupled with the sometimes-misleading results from preclinical studies in animal models (e.g. fatal immune reactions in the PEARL study 1 ) further emphasize the need for more predictive model systems based on human cells rather than surrogates. Humanized mice represent such a model and have been greatly enhanced in regards to their immune system reconstitution as well as immune functionality in the past years, resulting in their recommendation as pre-clinical model by the US Food and Drug Administration...
February 15, 2018: Immunology
https://www.readbyqxmd.com/read/29443409/cellular-collection-by-apheresis
#4
REVIEW
Anand Padmanabhan
Cellular collection is an important and increasingly used apheresis procedure. These collections are performed by leukocytapheresis, a procedure involving the removal of a patient's or donor's white blood cells, and are used to collect hematopoietic progenitor cells, specific cell populations (such as T-lymphocytes), and granulocytes. Hematopoietic progenitor cell apheresis and T-lymphocyte collection are performed by procedures that enrich for mononuclear cells. Hematopoietic progenitor cells are used for autologous and allogeneic hematopoietic stem cell transplantation, whereas T-cell collection is being used increasingly in novel cellular therapy approaches and for donor lymphocyte infusions to induce graft-versus-leukemia effect...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29439917/how-do-anxiety-affect-cd34-and-cd3-cells-in-allogeneic-peripheral-blood-stem-cell-transplantation
#5
Taraneh Taghavi Larijani, Saeed Mohammadi, Amir Kasaeian, Ashraf Malek Mohammadi, Shayan Mostafaei, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
Allogeneic peripheral blood stem cells (PBHSCs) transplantation using apheresis is a curative method for malignant and non-malignant hematologic diseases. The aim of this study was to assess the possible effects of anxiety as well as other variables on PBHSCs apheresis success. In this cross-sectional study, different demographic and clinical data such as granulocyte-colony stimulating factor (G-CSF) dosage, CD 34 + cells count (before apheresis), CD 34 + , CD3 + cells count in apheresis product and also complete blood count were assessed...
January 31, 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29439735/peripheral-mononuclear-blood-cell-apheresis-in-a-preclinical-ovine-model
#6
Helen Lydon, Roger Brooks, Andrew McCaskie, Frances Henson
BACKGROUND: Recent research has demonstrated that circulating peripheral blood mononuclear fractions (PBMC) containing haematopoietic stem (HSC)/progenitor cells have the potential to play a crucial role in regenerative medicine strategies. Work in our laboratory has shown that a peripheral blood mononuclear cell fraction (PBMC) enhances cartilage repair in an osteochondral defect model in sheep and has a significant effect on cells in the joint niche. In order to obtain PBMC rich blood containing HSCs for further studies, we have performed, for the first time, apheresis on adult sheep...
February 13, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29438409/the-effect-of-transient-oxygenation-on-stem-cell-mobilization-and-ischemia-reperfusion-heart-injury
#7
Rintaro Yano, Chiaki Inadomi, Lan Luo, Shinji Goto, Tetsuya Hara, Tao-Sheng Li
For general anesthesia, pre-oxygenation is routinely performed prior to intubation. It is well-known that ischemic/hypoxic preconditioning induces stem cell mobilization and protects against ischemia/reperfusion (I/R) injury. In this study, we investigated the effect of transient oxygenation on stem cell mobilization and I/R injury of the heart. Mice were exposed to 100% oxygen for 5 or 20 minutes. We evaluated the number of c-kit+ stem/progenitor cells and the levels of SDF-1α and VEGF in peripheral blood at 1, 3, 6, and 24 hours after oxygenation...
2018: PloS One
https://www.readbyqxmd.com/read/29434282/murine-hematopoietic-stem-cell-reconstitution-potential-is-maintained-by-osteopontin-during-aging
#8
Jin Li, Carmen Carrillo García, Tamara Riedt, Maria Brandes, Sabrina Szczepanski, Peter Brossart, Wolfgang Wagner, Viktor Janzen
In adult mammals, hematopoietic stem cells (HSCs) reside in the bone marrow and are in part regulated by the bone marrow microenvironment, called the stem cell niche. We have previously identified the bone marrow morphogen osteopontin (OPN), which is abundantly present in the bone marrow extracellular matrix, as a negative regulator of the size of the HSC pool under physiological conditions. Here, we study the impact of OPN on HSC function during aging using an OPN-knockout mouse model. We show that during aging OPN deficiency is associated with an increase in lymphocytes and a decline in erythrocytes in peripheral blood...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29433375/the-cxcr4-antagonist-amd3100-promotes-mesenchymal-stem-cell-mobilization-in-rats-preconditioned-with-the-hypoxia-mimicking-agent-cobalt-chloride
#9
Lizhen Liu, Qin Yu, Shan Fu, Binsheng Wang, Kaimin Hu, Limengmeng Wang, Yongxian Hu, Yulin Xu, Xiaohong Yu, He Huang
Mobilization of mesenchymal stem cells (MSCs) is an attractive strategy for cell therapy. Our previous study demonstrated that MSCs can be mobilized in circulating blood by short-term hypoxia and hypoxia-inducible factor-1α (HIF-1α) is essential for MSC mobilization. In the present study, the effect of the hypoxia mimicking agent CoCl2 was examined on MSC mobilization. The results indicated that the frequency of circulating MSCs increased slightly by administration of CoCl2. However, the mobilization efficiency was low...
February 13, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29429943/cd157-marks-tissue-resident-endothelial-stem-cells-with-homeostatic-and-regenerative-properties
#10
Taku Wakabayashi, Hisamichi Naito, Jun-Ichi Suehiro, Yang Lin, Hideya Kawaji, Tomohiro Iba, Tsukasa Kouno, Sachi Ishikawa-Kato, Masaaki Furuno, Kazuhiro Takara, Fumitaka Muramatsu, Jia Weizhen, Hiroyasu Kidoya, Katsuhiko Ishihara, Yoshihide Hayashizaki, Kohji Nishida, Mervin C Yoder, Nobuyuki Takakura
The generation of new blood vessels via angiogenesis is critical for meeting tissue oxygen demands. A role for adult stem cells in this process remains unclear. Here, we identified CD157 (bst1, bone marrow stromal antigen 1) as a marker of tissue-resident vascular endothelial stem cells (VESCs) in large arteries and veins of numerous mouse organs. Single CD157+ VESCs form colonies in vitro and generate donor-derived portal vein, sinusoids, and central vein endothelial cells upon transplantation in the liver...
February 1, 2018: Cell Stem Cell
https://www.readbyqxmd.com/read/29427840/generation-of-patient-specific-induced-pluripotent-stem-cells-from-leber-s-hereditary-optic-neuropathy
#11
Huai-En Lu, Yi-Ping Yang, Yan-Ting Chen, You-Ren Wu, Chia-Lin Wang, Fu-Ting Tsai, De-Kuang Hwang, Tai-Chi Lin, Shih-Jen Chen, An-Guor Wang, Patrick C H Hsieh, Shih-Hwa Chiou
Leber's hereditary optic neuropathy (LHON) is a maternally inherited mitochondrial disease caused by homoplasmic point mutations in complex I subunit genes of mitochondrial DNA. In this report, we generated an induced pluripotent stem cell (iPSCs) line, TVGH-iPSC-010-09, from the peripheral blood mononuclear cells of a female patient with Leber's hereditary optic neuropathy (LHON) by using the Sendai-virus delivery system. The resulting iPSCs retained the disease-causing mitochondrial DNA mutation, expressed pluripotent markers and could differentiate into the three germ layers...
January 31, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29427741/pharmacokinetic-and-pharmacodynamic-markers-of-mycophenolic-acid-associated-with-effective-prophylaxis-for-acute-graft-versus-host-disease-and-neutrophil-engraftment-in-cord-blood-transplant-patients
#12
Kazuaki Yoshimura, Ikuko Yano, Takashi Yamamoto, Tadakazu Kondo, Misaki Kawanishi, Yui Isomoto, Atsushi Yonezawa, Akifumi Takaori-Kondo, Kazuo Matsubara
Mycophenolate mofetil (MMF) is a pro-drug of mycophenolic acid (MPA) and is frequently used to prevent acute graft-versus-host disease (aGVHD) in patients receiving hematopoietic stem cell transplants (HCT). However, optimal doses of MMF and target MPA concentrations in HCT patients have not been defined. In this study, relationships between pharmacokinetic or pharmacodynamic markers of MPA and successful aGVHD prevention and neutrophil engraftment were evaluated to inform individualized MPA treatments in HCT patients...
February 7, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29427418/high-mutation-frequency-of-the-piga-gene-in-t-cells-results-in-reconstitution-of-gpi-anchor-cd52-t-cells-that-can-give-early-immune-protection-after-alemtuzumab-based-t-cell-depleted-allogeneic-stem-cell-transplantation
#13
Floris C Loeff, J H Frederik Falkenburg, Lois Hageman, Wesley Huisman, Sabrina A J Veld, H M Esther van Egmond, Marian van de Meent, Peter A von dem Borne, Hendrik Veelken, Constantijn J M Halkes, Inge Jedema
Alemtuzumab (ALM) is used for T cell depletion in the context of allogeneic hematopoietic stem cell transplantation (alloSCT) to prevent acute graft-versus-host disease and graft rejection. Following ALM-based T cell-depleted alloSCT, relatively rapid recovery of circulating T cells has been described, including T cells that lack membrane expression of the GPI-anchored ALM target Ag CD52. We show, in a cohort of 89 human recipients of an ALM-based T cell-depleted alloSCT graft, that early lymphocyte reconstitution always coincided with the presence of large populations of T cells lacking CD52 membrane expression...
February 2, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29427319/distinguishing-myelofibrosis-from-polycythemia-vera-and-essential-thrombocythemia-the-utility-of-enumerating-circulating-stem-cells-with-aberrant-hmicl-expression-by-flow-cytometry
#14
L L Herborg, L Nederby, H C Hasselbalch, A Aggerholm, A S Roug
INTRODUCTION: Diagnosing BCR-ABL negative myeloproliferative neoplasms (MPN) may be challenging due to overlapping features and lack of robust discriminatory parameters, especially between essential thrombocythemia (ET) and prefibrotic myelofibrosis (MF). Circulating immature hematopoietic cells are variably present in polycythemia vera (PV), ET, and MF. The C-type lectin hMICL is aberrantly expressed on hematopoietic stem cells in the majority of acute myeloid leukemia patients. However, the hMICL expression in MPN, having varying propensity of leukemic transformation, is unsettled...
February 10, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29423006/umbilical-cord-mesenchymal-stem-cell-transplantation-in-the-treatment-of-multiple-sclerosis
#15
Mingyao Meng, Ying Liu, Wenju Wang, Chuanyu Wei, Feifei Liu, Zhiqin Du, Yanhua Xie, Weiwei Tang, Zongliu Hou, Qihan Li
To investigate the clinical efficacy and safety of umbilical cord mesenchymal stem cell (UCMSC) transplantation for treating multiple sclerosis (MS), the patients with MS were recruited and treated with UCMSC. The procedure of preparing UCMSC was in accordance with the standards formulated by the International Society for Cell Biology. Cell surface markers, multiple differentiation potential and safety of UCMSC for transplantation were detected. The number of cells in each infusion was 1 to 2×10 6 cells/kg...
2018: American Journal of Translational Research
https://www.readbyqxmd.com/read/29421564/high-density-lipoprotein-mimicking-nanodiscs-carrying-peptide-for-enhanced-therapeutic-angiogenesis-in-diabetic-hindlimb-ischemia
#16
Hyun-Ji Park, Rui Kuai, Eun Je Jeon, Yoojin Seo, Youngmee Jung, James J Moon, Anna Schwendeman, Seung-Woo Cho
Therapeutic strategies using endogenous stem cell mobilizer can provide effective cell-free therapy for addressing various ischemic diseases. In particular, substance P (SP) exhibited therapeutic regeneration by facilitating mobilization of endogenous stem cells from bone marrow to the injured sites. However, its therapeutic effect has been limited due to short half-life and rapid degradation of administered SP peptides in vivo. Here we sought to develop high-density lipoprotein (HDL)-mimicking nanodiscs conjugated with SP (HDL-SP) in order to increase the in vivo half-life, bone marrow targeting, and therapeutic efficacy of SP for the treatment of diabetic peripheral ischemia...
January 19, 2018: Biomaterials
https://www.readbyqxmd.com/read/29419693/organ-damage-mitigation-with-the-baskent-sickle-cell-medical-care-development-program-bascare
#17
Hakan Ozdogu, Can Boga, Suheyl Asma, Ilknur Kozanoglu, Cigdem Gereklioglu, Mahmut Yeral, Nurhilal Turgut Buyukkurt, Soner Solmaz, Aslı Korur, Pelin Aytan, Erkan Maytalman, Mutlu Kasar
The Eastern Mediterranean is among the regions where sickle cell disease (SCD) is common. The morbidity and mortality of this disease can be postponed to adulthood through therapies implemented in childhood. The present study focuses on the organ damage-reducing effects of the Baskent Sickle Cell Medical Care Development Program (BASCARE), which was developed by a team who lives in this region and has approximately 25 years of experience. The deliverables of the program included the development of an electronic health recording system (PRANA) and electronic vaccination system; the use of low citrate infusion in routine prophylactic automatic erythrocyte exchange (ARCE) programs including pregnant women; the use of leukocyte-filtered and irradiated blood for transfusion; the use of magnetic resonance imaging methods (T2) for the management of transfusion-related hemosiderosis; and the implementation of an allogeneic hematopoietic stem cell transplantation protocol for adult patients...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29417230/identification-of-megakaryocytes-as-a-target-of-advanced-glycation-end-products-in-diabetic-complications-in-bone-marrow
#18
Benfang Wang, Jianjiang Yu, Ting Wang, Ying Shen, Dandan Lin, Xin Xu, Yiqiang Wang
AIMS: To define the possible effect of diabetic conditions on megakaryocytes, the long-know precursors of platelets and lately characterized modulator of hematopoietic stem quiescence-activation transition. METHODS: Megakaryoblastic MEG-01 cell culture and TPO/SCF/IL-3-induced differentiation of human umbilical blood mononuclear cells toward megakaryocytes were used to test effects of glycated bovine serum albumin (BSA-AGEs). The ob/ob mice and streptozotocin-treated mice were used as models of hyperglycemia...
February 8, 2018: Acta Diabetologica
https://www.readbyqxmd.com/read/29416817/transplants-of-unrelated-cord-blood-or-sibling-allogeneic-peripheral-blood-stem-cells-bone-marrow-in-adolescent-and-young-adults-with-chronic-myeloid-leukemia-comparable-outcomes-but-better-chronic-gvhd-free-and-relapse-free-survival-among-survivors-with-cord
#19
Changcheng Zheng, Xiaoyu Zhu, Baolin Tang, Xuhan Zhang, Lei Zhang, Liangquan Geng, Huilan Liu, Zimin Sun
Adolescent and young adult (AYA) patients with hematological malignancy aged 15 to 39 years are recognized as a separate entity, and the efficacy and safety of unrelated cord blood transplantation (CBT) for chronic myeloid leukemia (CML) in AYA patients has not been reported. From March 2002 to June 2015, total of 106 CML patients received allogeneic hematopoietic cell transplantation (allo-HCT) in our center. Included in the present study were CML patients aged 15 to 39 years who received unrelated CBT or sibling allo-HCT, and 74 consecutive AYA patients with CML enrolled in this analysis...
January 5, 2018: Oncotarget
https://www.readbyqxmd.com/read/29416633/allogeneic-hematopoietic-stem-cell-transplantation-for-relapsed-acute-myeloid-leukemia-in-eto-positive-with-reduced-intensity-conditioning
#20
Zhi Guo, Chen Xu, Hu Chen
Objective: This research is conducted under the intention of exploring the efficacy and safety of reduced-intensity conditioning for allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the treatment of relapsed ETO positive acute myeloid leukemia (AML). Materials and Methods: Treatment of 15 cases referring to recurrent ETO positive acute myeloid leukemia in an army hospital from January 2010 to January 2013 through allo-HSCT with reduced-intensity conditioning...
January 2, 2018: Oncotarget
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