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https://www.readbyqxmd.com/read/28823125/the-importance-of-post-thaw-subculture-for-standardizing-cellular-activity-of-fresh-or-cryopreserved-mouse-embryonic-stem-cells
#1
Dong Woo Ko, Jung Ki Yoon, Jong Il Ahn, Myungook Lee, Woo Sub Yang, Ji Yeon Ahn, Jeong Mook Lim
Objective: Much difference in cellular activity was detected between early and late subpassaged embryonic stem cell (ESCs) lines, which can be created by subtle changes in cell manipulation protocol. This study was subsequently examined whether post-thaw subculture of early subpassaged ESC lines could further affect their cellular activity, which results can contribute to standardizing ESC manipulation protocol for minimizing batch difference or data fluctuation. Methods: Fresh (as a control treatment) or cryopreserved F1 hybrid (B6CBAF1) early ESC lines (C57BL/6xCBA) of the 4 (P4) or the 19 passage (P19) were subcultured once, twice or six times under the same condition...
August 16, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28823040/maternal-predictors-and-quality-of-umbilical-cord-blood-units
#2
Beata Bielec-Berek, Żaneta Jastrzębska-Stojko, Agnieszka Drosdzol-Cop, Cecylia Jendyk, Dariusz Boruczkowski, Tomasz Ołdak, Agnieszka Nowak-Brzezińska, Rafał Stojko
The aim of the study was to determine the relationship between the maternal age at delivery and selected properties of the cord blood stem cells. The study included 50 pregnant women aged between 18 and 38 years in which spontaneous labors or elective cesarean sections were performed. Umbilical cord blood was collected immediately after the women were delivered of newborns. The samples were analyzed in the Polish Stem Cells Bank in Warsaw. The highest mean WBC level (p < 0.05) was observed in the umbilical blood collected from patients aged 35 years and more...
August 19, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28822992/low-dose-bisphenol-a-increases-bile-duct-proliferation-in-juvenile-rats-a-possible-evidence-for-risk-of-liver-cancer-in-the-exposed-population
#3
Ji Seong Jeong, Ki Taek Nam, Buhyun Lee, Aryo Dimas Pamungkas, Daeun Song, Minjeong Kim, Wook-Joon Yu, Jinsoo Lee, Sunha Jee, Youngja H Park, Kyung-Min Lim
Increasing concern is being given to the association between risk of cancer and exposure to low-dose bisphenol A (BPA), especially in young-aged population. In this study, we investigated the effects of repeated oral treatment of low to high dose BPA in juvenile Sprague-Dawley rats. Exposing juvenile rats to BPA (0, 0.5, 5, 50, and 250 mg/kg oral gavage) from post-natal day 9 for 90 days resulted in higher food intakes and increased body weights in biphasic dose-effect relationship. Male mammary glands were atrophied at high dose, which coincided with sexual pre-maturation of females...
August 21, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28822917/coexistence-of-aberrant-hematopoietic-and-stromal-elements-in-myelodysplastic-syndromes
#4
Salar Abbas, Archana Kini, Vivi M Srivastava, Marie Therese M, Sukesh C Nair, Aby Abraham, Vikram Mathews, Biju George, Sanjay Kumar, Aparna Venkatraman, Alok Srivastava
Myelodysplastic syndromes (MDS) are a group of clonal hematopoietic disorders related to hematopoietic stem and progenitor cell dysfunction. Several studies have shown the role of the bone marrow microenvironment in regulating hematopoietic stem, and progenitor function and their individual abnormalities have been associated with disease pathogenesis. In this study, we simultaneously evaluated hematopoietic stem cells (HSC), hematopoietic stem progenitor cells (HSPCs) and different stromal elements in a cohort of patients with MDS-refractory cytopenia with multilineage dysplasia (RCMD)...
August 9, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28822889/metformin-targets-gastric-cancer-stem-cells
#5
Sarah Courtois, Raúl V Durán, Julie Giraud, Elodie Sifré, Julien Izotte, Francis Mégraud, Philippe Lehours, Christine Varon, Emilie Bessède
Gastric cancer is the third leading cause of cancer-related deaths worldwide and has still a poor prognosis. Therefore, new therapeutic strategies are needed: among them, targeting cancer stem cells (CSCs) could offer new opportunities. The aim of our study was to evaluate the anti-tumoural effect of metformin on gastric cancer in vitro and in vivo and especially, to determine whether this molecule could target the gastric CSCs. Metformin effects were evaluated on the proliferation and tumourigenic properties of the gastric CSCs from patient-derived primary tumour xenografts (PDXs) and cancer cell lines (MKN45, AGS and MKN74) in vitro in conventional 2 dimensional (2D) and in 3 dimensional (3D) culture systems, in which only CSCs are able to form tumourspheres and in mouse xenograft models in vivo...
August 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28822836/fty720-fingolimod-an-oral-s1pr-modulator-mitigates-radiation-induced-cognitive-deficits
#6
Alexander M Stessin, Matei A Banu, Mariano Guardia Clausi, Nicholas Berry, John A Boockvar, Samuel Ryu
PURPOSE: This study evaluates FTY720/Fingolimod, modulator of sphingosine-1-phosphate (S1P) receptor, as a potential mitigator of radiation-induced neurocognitive dysfunction. METHODS AND MATERIALS: To study radiation-induced neurocognitive deficits, 6 week-old C57/Bl/6J mice received 0 or 7Gy cranial irradiation and were treated with FTY720 or vehicle for seven weeks. Fear conditioning and Morris water maze were then employed to test learning and memory. Immunohistochemical staining for neural progenitor cells (NPCs) and mature neurons was used to assess changes in hippocampal neurogenesis...
August 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28822832/combined-immunodeficiency-with-ebv-positive-b-cell-lymphoma-and-epidermodysplasia-verruciformis-due-to-a-novel-homozygous-mutation-in-rasgrp1
#7
Craig D Platt, Ari J Fried, Rodrigo Hoyos-Bachiloglu, G Naheed Usmani, Birgitta Schmidt, Jennifer Whangbo, Roberto Chiarle, Janet Chou, Raif S Geha
RASGRP1 is a guanine-nucleotide-exchange factor essential for MAP-kinase mediated signaling in lymphocytes. We report the second case of RASGRP1 deficiency in a patient with a homozygous nonsense mutation in the catalytic domain of the protein. The patient had epidermodysplasia verruciformis, suggesting a clinically important intrinsic T cell function defect. Like the previously described patient, our proband also presented with CD4(+) T cell lymphopenia, impaired T cell proliferation to mitogens and antigens, reduced NK cell function, and EBV-associated lymphoma...
August 16, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28822830/chronic-kidney-disease-in-long-term-survivors-after-allogeneic-hematopoietic-stem-cell-transplantation-retrospective-analysis-at-a-single-institute
#8
Tomoyasu Jo, Yasuyuki Arai, Tadakazu Kondo, Toshiyuki Kitano, Masakatsu Hishizawa, Kouhei Yamashita, Akifumi Takaori-Kondo
The number of patients eligible for allogeneic stem cell transplantation (allo-HSCT) has increased because of improvements in transplantation procedures. Among long-term survivors of allo-HSCT, chronic kidney disease (CKD) is a major cause of morbidity. We retrospectively analyzed the clinical data of 106 consecutive patients with a median age of 43 (17-73) years who had undergone allo-HSCT at our institution between January 2001 and September 2009. Patients who died within 5 years after transplantation or had CKD at the time of transplantation were excluded in this study...
August 16, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28822767/eurostemcell-a-european-infrastructure-for-communication-and-engagement-with-stem-cell-research
#9
REVIEW
Jan Barfoot, Kate Doherty, C Clare Blackburn
EuroStemCell is a large and growing network of organizations and individuals focused on public engagement with stem cells and regenerative medicine - a fluid and contested domain, where scientific, political, ethical, legal and societal perspectives intersect. Rooted in the European stem cell research community, this project has developed collaborative and innovative approaches to information provision and direct and online engagement, that reflect and respond to the dynamic growth of the field itself. EuroStemCell started as the communication and outreach component of a research consortium and subsequently continued as a stand-alone engagement initiative...
August 16, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28822748/systematical-exploration-of-transcription-factors-in-cardiomyocytes-against-hydrogen-peroxide-induced-oxidative-stress-by-danhong-injection
#10
Jingjing Zhang, Feifei Guo, Junying Wei, Minghua Xian, Shihuan Tang, Ye Zhao, Mingwei Liu, Lei Song, Ya Geng, Hongjun Yang, Chen Ding, Luqi Huang
Oxidative stress plays a vital role in many pathological processes of the cardiovascular diseases. However, the underlying mechanism remains unclear, especially on a transcription factor (TF) level. In this study, a new method, concatenated tandem array of consensus transcription factor response elements (catTFREs), and an Illumina-based RNA-seq technology were integrated and then combined with a network pharmacology strategy to systematically investigate the role of TFs in hydrogen peroxide (H2O2)-induced oxidative stress in cardiomyocytes; the damage was then rescued by Danhong injection (DHI), a Chinese standardized product approved for cardiovascular diseases treatment...
August 16, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28822634/development-and-efficacy-testing-of-a-hollow-awl-that-leads-to-patent-bone-marrow-channels-and-greater-mesenchymal-stem-cell-mobilization-during-bone-marrow-stimulation-cartilage-repair-surgery
#11
Byoung-Hyun Min, Minh-Dung Truong, Hyung Keun Song, Jae Ho Cho, Do Young Park, Heon Ju Kweon, Jun Young Chung
PURPOSE: To investigate whether microfracture with a cannulated hollow awl can yield more patent marrow channels and allow greater mobilization of the reparable cells to the defect compared to the conventional awl with blunt end in human knee joints. METHODS: Patients who were planned for 1-stage bilateral total knee arthroplasty due to degenerative osteoarthritis with well-preserved lateral femoral condylar cartilage were retrospectively included. A 10-mm × 20-mm, rectangular, full-thickness chondral defect was made on the lateral femoral condyle on each knee joint...
August 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28822568/effects-of-lipopolysaccharide-on-the-proliferation-and-osteogenic-differentiation-of-stem-cells-from-the-apical-papilla
#12
Veera Lertchirakarn, Panuroot Aguilar
INTRODUCTION: Stem cells from the apical papilla (SCAPs) were suggested as the stem cell source in regenerative endodontic procedures. However, bone and/or cementum-like structure were observed in root canals. Lipopolysaccharide (LPS) in infected root canals might alter SCAPs' osteogenic differentiation pattern. The objectives of this study were to investigate the effects of LPS on SCAPs' proliferation and osteogenic differentiation. METHODS: The mesenchymal stem cell characteristics of SCAPs were confirmed...
August 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28822456/-human-umbilical-cord-mesenchymal-stem-cell-transplantation-for-the-treatment-of-two-noncontinuous-segments-spinal-cord-compression-injury-in-rabbits
#13
C H Yang, B Q Yu, Q H You, J J Feng
Objective: In order to explore the effects of human umbilical cord mesenchymal stem cells (UCMSC) transplantation on the treatment of two noncontinuous segments spinal cord compression injury and to investigate whether repeated intravenous injection UCMSC was more beneficial for the recovery of spinal cord function. Methods: A total of 30 adult rabbits were randomly divided into three groups: control group (received PBS), single injection group, repeated injection group with 3 days intervals. A noncontinuous two segments SCI model was established by using the 2F Fogarty balloon catheter...
August 8, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28822354/3d-brain-organoids-derived-from-pluripotent-stem-cells-promising-experimental-models-for-brain-development-and-neurodegenerative-disorders
#14
REVIEW
Chun-Ting Lee, Raphael M Bendriem, Wells W Wu, Rong-Fong Shen
Three-dimensional (3D) brain organoids derived from human pluripotent stem cells (hPSCs), including embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), appear to recapitulate the brain's 3D cytoarchitectural arrangement and provide new opportunities to explore disease pathogenesis in the human brain. Human iPSC (hiPSC) reprogramming methods, combined with 3D brain organoid tools, may allow patient-derived organoids to serve as a preclinical platform to bridge the translational gap between animal models and human clinical trials...
August 20, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28822268/neural-precursor-cells-derived-from-induced-pluripotent-stem-cells-exhibit-reduced-susceptibility-to-infection-with-a-neurotropic-coronavirus
#15
Vrushali Mangale, Brett S Marro, Warren C Plaisted, Craig M Walsh, Thomas E Lane
The present study examines the susceptibility of mouse induced pluripotent stem cell-derived neural precursor cells (iPSC-NPCs) to infection with the neurotropic JHM strain of mouse hepatitis virus (JHMV). Similar to NPCs derived from striatum of day 1 postnatal GFP-transgenic mice (GFP-NPCs), iPSC-derived NPCs (iPSC-NPCs) are able to differentiate into terminal neural cell types and express MHC class I and II in response to IFN-γ treatment. However, in contrast to postnatally-derived NPCs, iPSC-NPCs express low levels of carcinoembryonic antigen-cell adhesion molecule 1a (CEACAM1a), the surface receptor for JHMV, and are less susceptible to infection and virus-induced cytopathic effects...
August 16, 2017: Virology
https://www.readbyqxmd.com/read/28822221/brain-plasticity-cognitive-functions-and-neural-stem-cells-a-pivotal-role-for-the-brain-specific-neural-master-gene-srgap2-fam72
#16
Nguyen Thi Thanh Ho, Arne Kutzner, Klaus Heese
Due to an aging society with an increased dementia-induced threat to higher cognitive functions, it has become imperative to understand the molecular and cellular events controlling the memory and learning processes in the brain. Here, we suggest that the novel master gene pair |-SRGAP2-FAM72-| (SLIT-ROBO Rho GTPase activating protein 2 - family with sequence similarity to 72) reveals a new dogma for the regulation of neural stem cell (NSC) gene expression and is a distinctive player in the control of human brain plasticity...
August 28, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28822190/-effect-of-pinostrobin-chalcone-on-adipogenic-differentiation-of-mesenchymal-stem-cell-c3h10t1-2
#17
Wei-Peng Huang, Yan-Fen Huang, Jian-Zhen Chen, Bo Jin, Jia-Ning Tan, Zhi-Shan Ding
Chalcones is a flavonoid wildly presented in many herbs. It has the effect to inhibit cells adipogenic differentiation. In order to study the effect of pinostrobin chalcone extracted and isolated from leaves of hickoryes on the adipogenic differentiation of murine embryonic mesenchymal stem cell (C3H10T1/2), MTS [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)- 2H-tetrazolium] method was used to detect the cell proliferation; adipogenic differentiation was characterized by oil red O staining and isopropanol extraction; the triglyceride content was detected by GAP-PAP enzyme method; and the C3H10T1/2 cell differentiation into adipocytes was also examined by the mRNA and protein expression of PPARγ, C/EBPα and FABP4 by RT-PCR and Western blot respectively...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822119/five-questions-answered-a-review-of-autologous-hematopoietic-stem-cell-transplantation-for-the-treatment-of-multiple-sclerosis
#18
REVIEW
Harold L Atkins, Mark S Freedman
Multiple sclerosis (MS) is thought to be an autoimmune disease targeting the central nervous system leading to demyelination, and axonal and neuronal damage, resulting in progressive disability. More intensive therapies such as immunodepletion with hematopoietic stem-cell rescue are being used at a time prior to patients becoming irreversibly disabled. Over the last 15 years, there has been a shift away from using autologous hematopoietic stem-cell transplants (aHSCT) to treat patients with progressive MS, towards treating those with active inflammation and relapses...
August 18, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28822107/successful-treatment-and-fdg-pet-ct-monitoring-of-hhv-6-encephalitis-in-a-non-neutropenic-patient-case-report-and-literature-review
#19
Elda Righi, Alessia Carnelutti, Daniele Muser, Francesco Zaja, Elisa Lucchini, Federico Pea, Fernando Di Gregorio, Abass Alavi, Matteo Bassetti
Human herpesvirus (HHV)-6 reactivation is associated with severe forms of encephalitis among patients undergoing hematopoietic stem cell transplantation. Cases in non-neutropenic patients are uncommon. The efficacy of ganciclovir and other compounds that are used for the treatment of HHV-6 encephalitis remains suboptimal and linked to toxicity. Valganciclovir, the oral prodrug of ganciclovir, could be practical to treat outpatients, but it is not commonly used for severe cases. We report a case of HHV-6 encephalitis in a non-neutropenic patient successfully treated with valganciclovir and undergoing therapeutic drug monitoring in plasma and in the cerebrospinal fluid...
August 18, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28822081/expression-profiling-of-the-map-kinase-phosphatase-family-reveals-a-role-for-dusp1-in-the-glioblastoma-stem-cell-niche
#20
Bradley N Mills, George P Albert, Marc W Halterman
The dual specificity phosphatases (DUSPs) constitute a family of stress-induced enzymes that provide feedback inhibition on mitogen-activated protein kinases (MAPKs) critical in key aspects of oncogenic signaling. While described in other tumor types, the landscape of DUSP mRNA expression in glioblastoma (GB) remains largely unexplored. Interrogation of the REpository for Molecular BRAin Neoplasia DaTa (REMBRANDT) revealed induction (DUSP4, DUSP6), repression (DUSP2, DUSP7-9), or mixed (DUSP1, DUSP5, DUSP10, DUSP15) DUSP transcription of select DUSPs in bulk tumor specimens...
August 18, 2017: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
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