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Stem cell mobilization

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https://www.readbyqxmd.com/read/28230777/cryptomphalus-aspersa-mollusc-egg-extract-promotes-regenerative-effects-in-human-dermal-papilla-stem-cells
#1
María Teresa Alameda, Esther Morel, Concepción Parrado, Salvador González, Ángeles Juarranz
The aim of this study was to test, by an in vitro approach, whether a natural extract derived from eggs of the mollusc Cryptomphalus aspersa (e-CAF) that seems to present regenerative properties, can enhance the mobilization of human hair dermal papilla cells (HHDPCs) and play a role on tissue repair and regeneration. We have tested HHDPCs proliferation by the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium-bromide (MTT) assay; cell migration by using a wound healing assay, as well as the modulation of the expression of cytoskeletal (F-actin and vimentin) and cell adhesion to the extracellular matrix (ECM) (vinculin and P-FAK) proteins...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28225870/pdk2-promotes-chondrogenic-differentiation-of-mesenchymal-stem-cells-by-upregulation-of-sox6-and-activation-of-jnk-mapk-erk-pathway
#2
H Wang, X B Shan, Y J Qiao
This study was undertaken to clarify the role and mechanism of pyruvate dehydrogenase kinase isoform 2 (PDK2) in chondrogenic differentiation of mesenchymal stem cells (MSCs). MSCs were isolated from femurs and tibias of Sprague-Dawley rats, weighing 300-400 g (5 females and 5 males). Overexpression and knockdown of PDK2 were transfected into MSCs and then cell viability, adhesion and migration were assessed. Additionally, the roles of aberrant PDK2 in chondrogenesis markers SRY-related high mobility group-box 6 (Sox6), type ΙΙ procollagen gene (COL2A1), cartilage oligomeric matrix protein (COMP), aggrecan (AGC1), type ΙX procollagen gene (COL9A2) and collagen type 1 alpha 1 (COL1A1) were measured by quantitative reverse-transcription polymerase chain reaction (qRT-PCR)...
February 16, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28223217/pax3-inhibits-%C3%AE-tubulin-iii-expression-and-neuronal-differentiation-of-neural-stem-cell
#3
Sixian Cao, Jinfeng Du, Yan Lv, Hengrong Lin, Zuming Mao, Man Xu, Mei Liu, Yan Liu
PAX3 functions at the nodal point in neural stem cell maintenance and differentiation. Using bioinformatics methods, we identified PAX3 as a potential regulator of β-Tubulin-III (TUBB3) gene transcription, and the results indicated that PAX3 might be involved in neural stem cell (NSC) differentiation by orchestrating the expression of cytoskeletal proteins. In the present study, we reported that PAX3 could inhibit the differentiation of NSCs and the expression of TUBB3. Further, using luciferase and electrophoretic mobility shift assays, we demonstrated that PAX3 could bind to the promoter region of TUBB3 and inhibit TUBB3 transcription...
February 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28213973/transforming-growth-factor-%C3%AE-induces-bone-marrow-mesenchymal-stem-cell-migration-via-noncanonical-signals-and-n-cadherin
#4
Maria Jose Dubon, Jinyeong Yu, Sanghyuk Choi, Ki-Sook Park
Transforming growth factor-beta (TGF-β) induces the migration and mobilization of bone marrow-derived mesenchymal stem cells (BM-MSCs) to maintain bone homeostasis during bone remodeling and facilitate the repair of peripheral tissues. Although many studies have reported the mechanisms through which TGF-β mediates the migration of various types of cells, including cancer cells, the intrinsic cellular mechanisms underlying cellular migration and mobilization of BM-MSCs mediated by TGF-β are unclear. In this study, we showed that TGF-β activated noncanonical signaling molecules, such as Akt, extracellular signal-regulated kinase 1/2 (ERK1/2), focal adhesion kinase (FAK), and p38, via TGF-β type I receptor in human BM-MSCs and murine BM-MSC-like ST2 cells...
February 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28211211/circulating-fibrocyte-mobilization-in-negative-pressure-wound-therapy
#5
Dezhi Chen, Yong Zhao, Zonghuan Li, Kangquan Shou, Xun Zheng, Pengcheng Li, Baiwen Qi, Aixi Yu
Non-healing diabetic wounds are difficult to treat. They also create heavy financial burdens for both patients and society. Negative pressure wound therapy (NPWT) has been adopted to treat intractable wounds and has proved to be effective. However, the mechanisms that underlie the effects of this treatment are not entirely understood. Circulating fibrocytes are unique haematopoietic-derived stem cells that have been reported to play a pivotal role in wound healing. Here, we have investigated the effect of NPWT on fibrocyte mobilization and the role of fibrocyte mobilization in the healing of diabetic wounds during NPWT...
February 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28210846/stem-cell-reviews-and-reports-cell-trafficking-stem-cell-mobilization-and-homing-and-hematopoiesis-section
#6
EDITORIAL
Louis M Pelus
No abstract text is available yet for this article.
February 16, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28206953/zinc-finger-protein-zfp36l1-promotes-osteoblastic-differentiation-but-represses-adipogenic-differentiation-of-mouse-multipotent-cells
#7
Kuo-Yun Tseng, Yi-Hsuan Chen, Shankung Lin
Zinc finger protein 36, C3H type-like 1 (ZFP36L1) is a member of the tristetraprolin (TTP) family and its role in the aging-related bone loss is currently unknown. We present evidence that ZFP36L1 expression in rat femurs and bone marrow mesenchymal stem cells (bmMSCs) was down-regulated with aging. ZFP36L1 knockdown decreased osteoblastic differentiation of MC3T3-E1 and C3H10T1/2 cells, and increased adipogenic differentiation of 3T3-L1 and C3H10T1/2 cells, whereas ZFP36L1 overexpression did the opposite. The finding that ZFP36L1 overexpression enhanced osteoblastic and repressed adipogenic differentiation was also corroborated by ex vivo experiments...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28196601/cholinergic-signals-from-the-cns-regulate-g-csf-mediated-hsc-mobilization-from-bone-marrow-via-a-glucocorticoid-signaling-relay
#8
Halley Pierce, Dachuan Zhang, Claire Magnon, Daniel Lucas, John R Christin, Matthew Huggins, Gary J Schwartz, Paul S Frenette
Hematopoietic stem cells (HSCs) are mobilized from niches in the bone marrow (BM) to the blood circulation by the cytokine granulocyte colony-stimulating factor (G-CSF) through complex mechanisms. Among these, signals from the sympathetic nervous system regulate HSC egress via its niche, but how the brain communicates with the BM remains largely unknown. Here we show that muscarinic receptor type-1 (Chrm1) signaling in the hypothalamus promotes G-CSF-elicited HSC mobilization via hormonal priming of the hypothalamic-pituitary-adrenal (HPA) axis...
February 4, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28191756/aberrant-transforming-growth-factor-%C3%AE-activation-recruits-mesenchymal-stem-cells-during-prostatic-hyperplasia
#9
Long Wang, Liang Xie, Francis Tintani, Hui Xie, Changjun Li, Zhuang Cui, Mei Wan, Xiongbing Zu, Lin Qi, Xu Cao
Benign prostatic hyperplasia (BPH) is the overgrowth of prostate tissues with high prevalence in older men. BPH pathogenesis is not completely understood, but it is believed to be a result of de novo overgrowth of prostatic stroma. In this study, we show that aberrant activation of transforming growth factor-β (TGF-β) mobilizes mesenchymal/stromal stem cells (MSCs) in circulating blood, which are recruited for the prostatic stromal hyperplasia. Elevated levels of active TGF-β were observed in both a phenylephrine-induced prostatic hyperplasia mouse model and human BPH tissues...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28187462/recombinant-tat-bmi-1-fusion-protein-induces-ex-vivo-expansion-of-human-umbilical-cord-blood-derived-hematopoietic-stem-cells
#10
Bruna Codispoti, Nicola Rinaldo, Emanuela Chiarella, Michela Lupia, Cristina Barbara Spoleti, Maria Grazia Marafioti, Annamaria Aloisio, Stefania Scicchitano, Marco Giordano, Giovanna Nappo, Valeria Lucchino, Malcolm A S Moore, Pengbo Zhou, Maria Mesuraca, Heather Mandy Bond, Giovanni Morrone
Transplantation of hematopoietic stem cells (HSCs) is a well-established therapeutic approach for numerous disorders. HSCs are typically derived from bone marrow or peripheral blood after cytokine-induced mobilization. Umbilical cord blood (CB) represents an appealing alternative HSC source, but the small amounts of the individual CB units have limited its applications. The availability of strategies for safe ex vivo expansion of CB-derived HSCs (CB-HSCs) may allow to extend the use of these cells in adult patients and to avoid the risk of insufficient engraftment or delayed hematopoietic recovery...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28186704/mesenchymal-stromal-cells-modulate-monocytes-trafficking-in-coxsackievirus-b3-induced-myocarditis
#11
Kapka Miteva, Kathleen Pappritz, Muhammad El-Shafeey, Fengquan Dong, Jochen Ringe, Carsten Tschöpe, Sophie Van Linthout
Mesenchymal stromal cell (MSC) application in Coxsackievirus B3 (CVB3)-induced myocarditis reduces myocardial inflammation and fibrosis, exerts prominent extra-cardiac immunomodulation, and improves heart function. Although the abovementioned findings demonstrate the benefit of MSC application, the mechanism of the MSC immunomodulatory effects leading to a final cardioprotective outcome in viral myocarditis remains poorly understood. Monocytes are known to be a trigger of myocardial tissue inflammation. The present study aims at investigating the direct effect of MSC on the mobilization and trafficking of monocytes to the heart in CVB3-induced myocarditis...
January 3, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28183937/mobile-elements-control-stem-cell-potency
#12
Hidetoshi Hasuwa, Haruhiko Siomi
No abstract text is available yet for this article.
February 10, 2017: Science
https://www.readbyqxmd.com/read/28183849/bone-marrow-mesenchymal-stromal-cells-induce-nitric-oxide-synthase-dependent-differentiation-of-cd11b-cells-that-expedite-hematopoietic-recovery
#13
Cristina Trento, Ilaria Marigo, Alice Pievani, Antonio Galleu, Luigi Dolcetti, Chun-Yin Wang, Marta Serafini, Vincenzo Bronte, Francesco Dazzi
Bone marrow microenvironment is fundamental for hematopoietic homeostasis. Numerous efforts have been made to reproduce or manipulate its activity to facilitate engraftment after hematopoietic stem cell transplantation but clinical results remain unconvincing. This probably reflects the complexity of the hematopoietic niche. Recent data have demonstrated the fundamental role of stromal and myeloid cells in regulating hematopoietic stem cell self-renewal and mobilization in the bone marrow. In this study we unveil a novel interaction by which bone marrow mesenchymal stromal cells induce the rapid differentiation of CD11b+ myeloid cells from bone marrow progenitors...
February 9, 2017: Haematologica
https://www.readbyqxmd.com/read/28182150/evaluation-of-a-biosimilar-granulocyte-colony-stimulating-factor-filgrastim-xm02-for-peripheral-blood-stem-cell-mobilization-and-transplantation-a-single-center-experience-in-japan
#14
Hideaki Yoshimura, Masaaki Hotta, Takahisa Nakanishi, Shinya Fujita, Aya Nakaya, Atsushi Satake, Tomoki Ito, Kazuyoshi Ishii, Shosaku Nomura
BACKGROUND: Biosimilar granulocyte colony-stimulating factor (G-CSF) has recently been introduced into clinical practice. G-CSFs are used to mobilize CD34(+) cells and accelerate engraftment after transplantation. However, in Asia, particularly in Japan, data for peripheral blood stem cell (PBSC) mobilization by this biosimilar G-CSF are currently lacking. Therefore, the clinical efficacy and safety of biosimilar G-CSF for hematopoietic stem cell transplantation needs to be evaluated in a Japanese context...
2017: Journal of Blood Medicine
https://www.readbyqxmd.com/read/28179275/granulocyte-colony-stimulating-factor-mobilizes-dormant-hematopoietic-stem-cells-without-proliferation-in-mice
#15
Jeffrey M Bernitz, Michael Daniel, Yesai S Fstkchyan, Kateri Moore
Granulocyte colony stimulating factor (G-CSF) is used clinically to treat leukopenia and to enforce hematopoietic stem cell (HSC) mobilization to the peripheral blood (PB). However, G-CSF is also produced in response to infection, and excessive exposure reduces HSC repopulation capacity. Previous work has shown that dormant HSCs contain all the long-term repopulation potential in the bone marrow (BM), and that as HSCs accumulate a divisional history they progressively lose regenerative potential. As G-CSF treatment also induces HSC proliferation, we sought to examine whether G-CSF-mediated repopulation defects are due to increased proliferative history...
February 8, 2017: Blood
https://www.readbyqxmd.com/read/28174416/microrna-155-promotes-g-csf-induced-mobilization-of-murine-hematopoietic-stem-and-progenitor-cells-via-propagation-of-cxcl12-signaling
#16
T Itkin, A Kumari, E Schneider, S Gur-Cohen, C Ludwig, R Brooks, O Kollet, K Golan, E Khatib-Massalha, C M Russo, J D Chisholm, A Rouhi, H Geiger, E Hornstein, W G Kerr, F Kuchenbauer, T Lapidot
Leukemia accepted article preview online, 08 February 2017. doi:10.1038/leu.2017.50.
February 8, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28170186/live-tissue-imaging-to-elucidate-mechanical-modulation-of-stem-cell-niche-quiescence
#17
Nicole Y C Yu, Connor A O'Brien, Iveta Slapetova, Renee M Whan, Melissa L Knothe Tate
The periosteum, a composite cellular connective tissue, bounds all nonarticular bone surfaces. Like Velcro, collagenous Sharpey's fibers anchor the periosteum in a prestressed state to the underlying bone. The periosteum provides a niche for mesenchymal stem cells. Periosteal lifting, as well as injury, causes cells residing in the periosteum (PDCs) to change from an immobile, quiescent state to a mobile, active state. The physical cues that activate PDCs to home to and heal injured areas remain a conundrum...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28169418/allogeneic-transplantation-using-cd34-selected-peripheral-blood-progenitor-cells-combined-with-non-mobilized-donor-t%C3%A2-cells-for-refractory-severe-aplastic-anaemia
#18
Enkhtsetseg Purev, Xin Tian, Georg Aue, Jeremy Pantin, Phuong Vo, Reem Shalabi, Robert N Reger, Lisa Cook, Catalina Ramos, Elena Cho, Tat'yana Worthy, Hanh Khuu, David Stroncek, Neal S Young, Richard W Childs
Allogeneic haematopoietic stem cell transplantation is curative for severe aplastic anaemia (SAA) unresponsive to immunosuppressive therapy. To reduce chronic graft-versus-host disease (GVHD), which occurs more frequently after peripheral blood stem cell (PBSC) transplantation compared to bone-marrow transplantation (BMT), and to prevent graft rejection, we developed a novel partial T-cell depleted transplant that infuses high numbers of granulocyte colony-stimulating factor-mobilized CD34(+) selected PBSCs combined with a BMT-equivalent dose of non-mobilized donor T-cells...
February 7, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28164682/comparison-of-simultaneous-cd34-and-cd3-quantification-with-a-modified-stem-cell-enumeration-kit-on-two-different-flow-cytometers
#19
Julian Strobel, Barbara Hauck-Dlimi, Volker Weisbach, Reinhold Eckstein, Juergen Zingsem, Erwin Strasser
BACKGROUND: Quantification of CD34+ cells in peripheral blood stem cell apheresis is normally performed by single platform flow cytometric measurements according to the ISHAGE protocol. Peripheral blood stem cell concentrates (PBSC) produced by apheresis normally contain many T cells. Those T cells can be used for production of donor lymphocyte infusion doses, if abundant amounts of CD34+ cells have been collected. Therefore, it is of interest to know both the CD3+ and the CD34+ cell count of allogeneic PBSC...
November 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164135/role-of-cd8-regulatory-t-cells-versus-tc1-and-tc17-cells-in-the-development-of-human-graft-versus-host-disease
#20
Adriana Gutiérrez-Hoya, Rubén López-Santiago, Jorge Vela-Ojeda, Laura Montiel-Cervantes, Octavio Rodríguez-Cortés, Víctor Rosales-García, Vladimir Paredes-Cervantes, Raúl Flores-Mejía, Daniela Sandoval-Borrego, Martha Moreno-Lafont
CD8(+) T cells that secrete proinflammatory cytokines play a central role in exacerbation of inflammation; however, a new subpopulation of CD8 regulatory T cells has recently been characterized. This study analyzes the prominent role of these different subpopulations in the development of graft-versus-host disease (GVHD). Samples from 8 healthy donors mobilized with Filgrastim® (G-CSF) and 18 patients who underwent allogeneic hematopoietic stem cell transplantation (HSCT) were evaluated by flow cytometry. Mobilization induced an increase in Tc1 (p < 0...
2017: Journal of Immunology Research
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