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https://www.readbyqxmd.com/read/28323994/direct-regulation-of-histidine-ammonia-lyase-2-gene-by-thyroid-hormone-in-the-developing-adult-intestinal-stem-cells
#1
Nga Luu, Liezhen Fu, Kenta Fujimoto, Yun-Bo Shi
Most vertebrate organs utilize adult stem cells to maintain homeostasis and ensure proper repair when damaged. How such organ-specific stem cells are formed during vertebrate development is largely unexplored. We have been using the thyroid hormone (T3)-dependent amphibian metamorphosis to address this issue. Early studies in Xenopus laevis have shown that intestinal remodeling involves complete degeneration of the larval epithelium and de novo formation of adult stem cells through dedifferentiation of some larval epithelial cells...
February 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28319077/non-myeloablative-allogeneic-stem-cell-transplant-with-post-transplant-cyclophosphamide-cures-the-first-adult-patient-with-congenital-dyserythropoietic-anemia
#2
A Oh, P R Patel, N Aardsma, S R Mehendale, R Chowdhery, K Sweiss, D Rondelli
No abstract text is available yet for this article.
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28319075/autologous-hematopoietic-stem-cell-transplantation-for-pediatric-multiple-sclerosis-a-registry-based-study-of-the-autoimmune-diseases-working-party-adwp-and-pediatric-diseases-working-party-pdwp-of-the-european-society-for-blood-and-marrow-transplantation-ebmt
#3
J Burman, K Kirgizov, K Carlson, M Badoglio, G L Mancardi, G De Luca, B Casanova, J Ouyang, R Bembeeva, J Haas, P Bader, J Snowden, D Farge
Autologous hematopoietic stem cell transplantation (aHSCT) is a promising therapy for multiple sclerosis (MS), which has mainly been used in adults. The purpose of this study was to investigate efficacy and adverse events of aHSCT in the treatment of children with MS using data from the European Society for Blood and Marrow Transplantation registry. Twenty-one patients with a median follow-up time of 2.8 years could be identified. PFS at 3 years was 100%, 16 patients improved in expanded disability status scale score and only 2 patients experienced a clinical relapse...
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28318150/expression-of-cd4-is-correlated-with-an-unfavorable-prognosis-in-wild-type-npm1-flt3-itd-negative-cytogenetically-normal-adult-acute-myeloid-leukemia
#4
R J Guo, E G Atenafu, A D Schimmer, M D Minden, H Chang
INTRODUCTION: In the cytogenetically normal population of AML (CN-AML), FLT3-ITD-positive and wild-type NPM1 is correlated with a worse outcome, and FLT3-ITD-negative with NPM1-mut is correlated with a better outcome. This leaves a large subpopulation of CN-AML patients without NPM1 or FLT3-ITD mutations with heterogeneous outcomes with overall survivals (OS) ranging from several weeks to years. Therefore, new prognostic markers are needed to better risk stratify this subset of patients...
March 20, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28318017/thymic-crosstalk-restrains-the-pool-of-cortical-thymic-epithelial-cells-with-progenitor-properties
#5
Catarina Meireles, Ana R Ribeiro, Rute D Pinto, Catarina Leitão, Pedro M Rodrigues, Nuno L Alves
Cortical (cTEC) and medullary (mTEC) thymic epithelial cells establish key microenvironments for T-cell differentiation and arise from thymic epithelial cell progenitors (TEP). However, the nature of TEPs and the mechanism controlling their stemness in the postnatal thymus remain poorly defined. Using TEC clonogenic assays as a surrogate to survey TEP activity, we found that a fraction of cTECs generates specialized clonal-derived colonies, which contain cells with sustained colony-forming capacity (ClonoTECs)...
March 20, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28317180/anti-acsa-2-defines-a-novel-monoclonal-antibody-for-prospective-isolation-of-living-neonatal-and-adult-astrocytes
#6
Christina G Kantzer, Camille Boutin, Ina D Herzig, Carolina Wittwer, Sandy Reiß, Marie Catherine Tiveron, Jan Drewes, Thomas D Rockel, Stefanie Ohlig, Jovica Ninkovic, Harold Cremer, Sandra Pennartz, Melanie Jungblut, Andreas Bosio
Astrocytes are the most abundant cell type of the central nervous system and cover a broad range of functionalities. We report here the generation of a novel monoclonal antibody, anti-astrocyte cell surface antigen-2 (Anti-ACSA-2). Flow cytometry, immunohistochemistry and immunocytochemistry revealed that Anti-ACSA-2 reacted specifically with a not yet identified glycosylated surface molecule of murine astrocytes at all developmental stages. It did not show any labeling of non-astroglial cells such as neurons, oligodendrocytes, NG2(+) cells, microglia, endothelial cells, leukocytes, or erythrocytes...
March 20, 2017: Glia
https://www.readbyqxmd.com/read/28317161/eosinophilic-pustular-folliculitis-in-children-after-stem-cell-transplantation-an-eruption-distinct-from-graft-versus-host-disease
#7
Martin Theiler, Vikash S Oza, Erin F Mathes, Christopher C Dvorak, Timothy H McCalmont, Iwei Yeh, Robert Sidbury, Kelly M Cordoro
Eosinophilic pustular folliculitis (EPF) is a rare cutaneous disorder that typically occurs in three clinical contexts: men, individuals who are immunosuppressed or have human immunodeficiency virus, and infants. A fourth subtype occurring 2 to 3 months after hematopoietic stem cell transplantation (HSCT) has recently been described in several adults. We report two cases of EPF arising in children after HSCT. It is important to recognize this form of EPF after HSCT and differentiate it from graft-versus-host disease since it responds readily to topical steroids and appears to have an excellent prognosis...
March 20, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28316123/the-msc-adhesion-cascade-insights-into-homing-and-transendothelial-migration
#8
Franziska Nitzsche, Claudia Müller, Barbara Lukomska, Jukka Jolkkonen, Alexander Deten, Johannes Boltze
Mesenchymal stem cells (MSC) are promising candidates for adult cell therapies in regenerative medicine. To fully exert their potential, efficient homing and migration towards lesion sites plays an important role. Local transplantation deposits MSC in spatial proximity to the lesion, but often requires invasive procedures. Systemic administration routes are favored, but require the targeted extravasation of the circulating MSC at the site of injury. Transplanted MSC can indeed leave the blood flow and transmigrate through the endothelial barrier, and reach the lesion site...
March 18, 2017: Stem Cells
https://www.readbyqxmd.com/read/28315349/diethylstilbestrol-induces-oxidative-dna-damage-resulting-in-apoptosis-of-spermatogonial-stem-cells-in-vitro
#9
Khaled Habas, Martin H Brinkworth, Diana Anderson
The spermatogonial stem cells (SSCs) are the only germline stem cells in adults that are responsible for the transmission of genetic information from mammals to the next generation. SSCs play a very important role in the maintenance of progression of spermatogenesis and help provide an understanding of the reproductive biology of future gametes and a strategy for diagnosis and treatment of infertility and male reproductive toxicity. Androgens/oestrogens are very important for the suitable maintenance of male germ cells...
March 14, 2017: Toxicology
https://www.readbyqxmd.com/read/28314524/development-of-the-japanese-version-of-the-psychosocial-assessment-of-candidates-for-transplantation-in-allogeneic-hematopoietic-stem-cell-transplantation
#10
Saki Harashima, Ryo Yoneda, Takeshi Horie, Mami Kayano, Yosei Fujioka, Fumihiko Nakamura, Mineo Kurokawa, Kazuhiro Yoshiuchi
BACKGROUND: The Psychosocial Assessment of Candidates for Transplantation (PACT) is a validated instrument for evaluating psychosocial risk factors in transplant candidates. OBJECTIVES: This study examined reliability and validity of the Japanese version of the PACT (J-PACT). METHODS: PACT is a clinician-rated scale consisting of an initial rating, 8 subscales, and a final rating. J-PACT was developed through a translation and back-translation procedure...
January 19, 2017: Psychosomatics
https://www.readbyqxmd.com/read/28314478/osteoinductive-effects-of-glyceollins-on-adult-mesenchymal-stromal-stem-cells-from-adipose-tissue-and-bone-marrow
#11
Marjorie E Bateman, Amy L Strong, Ryan S Hunter, Melyssa R Bratton, Rajesh Komati, Jayalakshmi Sridhar, Kevin E Riley, Guangdi Wang, Daniel J Hayes, Stephen M Boue, Matthew E Burow, Bruce A Bunnell
BACKGROUND: While current therapies for osteoporosis focus on reducing bone resorption, the development of therapies to regenerate bone may also be beneficial. Promising anabolic therapy candidates include phytoestrogens, such as daidzein, which effectively induce osteogenesis of adipose-derived stromal cells (ASCs) and bone marrow stromal cells (BMSCs). PURPOSE: To investigate the effects of glyceollins, structural derivatives of daidzein, on osteogenesis of ASCs and BMSCs...
April 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28314379/rejuvenation-by-partial-reprogramming-of-the-epigenome
#12
Andrew R Mendelsohn, James Larrick, Jennifer L Lei
Epigenetic variation with age is one of the most important hallmarks of aging. Resetting or repairing the epigenome of aging cells in intact animals may rejuvenate the cells and perhaps the entire organism. In fact, differentiated adult cells, which by definition have undergone some epigenetic changes, are capable of being rejuvenated and reprogrammed to create pluripotent stem cells and viable cloned animals. Apparently, such reprogramming is capable of completely resetting the epigenome. However, attempts to fully reprogram differentiated cells in adult animals have failed in part because reprogramming leads to formation of teratomas...
March 17, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28304405/the-erbb3-receptor-tyrosine-kinase-negatively-regulates-paneth-cells-by-pi3k-dependent-suppression-of-atoh1
#13
Dana Almohazey, Yuan-Hung Lo, Claire V Vossler, Alan J Simmons, Jonathan J Hsieh, Edie B Bucar, Michael A Schumacher, Kathryn E Hamilton, Ken S Lau, Noah F Shroyer, Mark R Frey
Paneth cells (PCs), a secretory population located at the base of the intestinal crypt, support the intestinal stem cells (ISC) with growth factors and participate in innate immunity by releasing antimicrobial peptides, including lysozyme and defensins. PC dysfunction is associated with disorders such as Crohn's disease and necrotizing enterocolitis, but the specific pathways regulating PC development and function are not fully understood. Here we tested the role of the neuregulin receptor ErbB3 in control of PC differentiation and the ISC niche...
March 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28303468/human-very-small-embryonic-like-cells-support-vascular-maturation-and-therapeutic-revascularization-induced-by-endothelial-progenitor-cells
#14
Coralie L Guerin, Elisa Rossi, Bruno Saubamea, Audrey Cras, Virginie Mignon, Jean-Sébastien Silvestre, David M Smadja
Very small embryonic-like stem cells (VSELs) are major pluripotent stem cells defined as cells of small size being Lineage- negative, CD133-positive, and CD45-negative. We previously described that human bone marrow VSELs were able to differentiate into endothelial cells and promoted post-ischemic revascularization in mice with surgically induced critical limb ischemia. In the present work, we isolated bone marrow VSELs from patients with critical limb ischemia and studied their ability to support endothelial progenitor cells therapeutic capacity and revascularization potential...
March 16, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28303247/effect-of-wnt-signaling-on-the-differentiation-of-islet-%C3%AE-cells-from-adipose-derived-stem-cells
#15
Hefei Wang, Yu Ren, Xiao Hu, Min Ma, Xiao Wang, Hao Liang, Dongjun Liu
The Wnt signaling is critical for pancreatic development and islet function; however, its precise effects on the development and function of the β-cells remain controversial. Here we examined mRNA and protein expression of components of the Wnt signaling throughout the differentiation of islet β-cells from adipose-derived stem cells (ADSCs). After induction, ADSCs expressed markers of β-cells, including the insulin, PDX1, and glucagon genes, and the PDX1, CK19, nestin, insulin, and C-peptide proteins, indicating their successful differentiation...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28303152/promising-therapeutic-strategies-for-mesenchymal-stem-cell-based-cardiovascular-regeneration-from-cell-priming-to-tissue-engineering
#16
REVIEW
Seung Taek Ji, Hyunyun Kim, Jisoo Yun, Joo Seop Chung, Sang-Mo Kwon
The primary cause of death among chronic diseases worldwide is ischemic cardiovascular diseases, such as stroke and myocardial infarction. Recent evidence indicates that adult stem cell therapies involving cardiovascular regeneration represent promising strategies to treat cardiovascular diseases. Owing to their immunomodulatory properties and vascular repair capabilities, mesenchymal stem cells (MSCs) are strong candidate therapeutic stem cells for use in cardiovascular regeneration. However, major limitations must be overcome, including their very low survival rate in ischemic lesion...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28303137/cellular-and-molecular-characterization-of-microglia-a-unique-immune-cell-population
#17
REVIEW
Carole Sousa, Knut Biber, Alessandro Michelucci
Microglia are essential for the development and function of the adult brain. Microglia arise from erythro-myeloid precursors in the yolk sac and populate the brain rudiment early during development. Unlike monocytes that are constantly renewed from bone marrow hematopoietic stem cells throughout life, resident microglia in the healthy brain persist during adulthood via constant self-renewal. Their ontogeny, together with the absence of turnover from the periphery and the singular environment of the central nervous system, make microglia a unique cell population...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28301051/adverse-events-of-cryopreserved-hematopoietic-stem-cell-infusions-in-adults-a-single-center-observational-study
#18
Zaher K Otrock, Diane S Sempek, Sherry Carey, Brenda J Grossman
BACKGROUND: Autologous hematopoietic stem cell (HSC) transplantation has been used for almost three decades for the management of malignant hematologic diseases and some solid tumors. Dimethyl sulfoxide (DMSO) is used as a cryoprotective agent for hematopoietic progenitor cells (HPCs) collected by apheresis (HPC-A). We evaluated the factors contributing to the occurrence of adverse events (AEs) of cryopreserved HPC-A infusion. STUDY DESIGN AND METHODS: Between January 2009 and June 2014, a total of 1269 (1191 patients) consecutive HPC-A infusions were given to adult patients undergoing autologous HSC transplantation at Barnes-Jewish Hospital...
March 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28300491/dynamic-regulation-of-twist1-expression-during-chondrogenic-differentiation-of-human-bone-marrow-derived-mesenchymal-stem-cells
#19
Mairéad A Cleary, Roberto Narcisi, Anna Albiero, Florien Jenner, Laurie M G de Kroon, Wendy J L M Koevoet, Pieter A J Brama, Gerjo J V M van Osch
Human bone marrow-derived mesenchymal stem cells (BMSCs) are clinically promising to repair damaged articular cartilage. This study investigated TWIST1, an important transcriptional regulator in mesenchymal lineages, in BMSC chondrogenesis. We hypothesized that downregulation of TWIST1 expression is required for in vitro chondrogenic differentiation. Indeed, significant downregulation of TWIST1 was observed in murine skeletal progenitor cells during limb development (N = 3 embryos), and during chondrogenic differentiation of culture-expanded human articular chondrocytes (N = 3 donors) and isolated adult human BMSCs (N = 7 donors), consistent with an inhibitory effect of TWIST1 expression on chondrogenic differentiation...
March 16, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28299655/runx-family-genes-in-tissue-stem-cell-dynamics
#20
Chelsia Qiuxia Wang, Michelle Meng Huang Mok, Tomomasa Yokomizo, Vinay Tergaonkar, Motomi Osato
The Runx family genes play important roles in development and cancer, largely via their regulation of tissue stem cell behavior. Their involvement in two organs, blood and skin, is well documented. This review summarizes currently known Runx functions in the stem cells of these tissues. The fundamental core mechanism(s) mediated by Runx proteins has been sought; however, it appears that there does not exist one single common machinery that governs both tissue stem cells. Instead, Runx family genes employ multiple spatiotemporal mechanisms in regulating individual tissue stem cell populations...
2017: Advances in Experimental Medicine and Biology
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