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Stem Cells and Development

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https://www.readbyqxmd.com/read/28363252/first-published-study-with-embryonated-hen-egg-infected-with-zika-virus-is-dated-from-1952
#1
Suzane Ramos da Silva
No abstract text is available yet for this article.
April 24, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28351290/keratose-hydrogels-promote-vascular-smooth-muscle-differentiation-from-c-kit-positive-human-cardiac-stem-cells
#2
Benjamin T Ledford, Jamelle Simmons, Miao Chen, Huimin Fan, Catherine Barron, Zhongmin Liu, Mark Van Dyke, Jia-Qiang He
Stem cell-based therapies have demonstrated great potential for the treatment of cardiac diseases, for example, myocardial infarction; however, low cell viability, low retention/engraftment, and uncontrollable in vivo differentiation after transplantation are still major limitations, which lead to low therapeutic efficiency. Biomaterials provide a promising solution to overcome these issues due to their biocompatibility, biodegradability, low/nonimmunogenicity, and low/noncytotoxicity. The present study aimed to investigate the impacts of keratose (KOS) hydrogel biomaterial on cellular viability, proliferation, and differentiation of c-kit(+) human cardiac stem cells (hCSCs)...
April 24, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28323540/identification-of-multipotent-stem-cells-in-human-brain-tissue-following-stroke
#3
Kotaro Tatebayashi, Yasue Tanaka, Akiko Nakano-Doi, Rika Sakuma, Saeko Kamachi, Manabu Shirakawa, Kazutaka Uchida, Hiroto Kageyama, Toshinori Takagi, Shinichi Yoshimura, Tomohiro Matsuyama, Takayuki Nakagomi
Perivascular regions of the brain harbor multipotent stem cells. We previously demonstrated that brain pericytes near blood vessels also develop multipotency following experimental ischemia in mice and these ischemia-induced multipotent stem cells (iSCs) can contribute to neurogenesis. However, it is essential to understand the traits of iSCs in the poststroke human brain for possible applications in stem cell-based therapies for stroke patients. In this study, we report for the first time that iSCs can be isolated from the poststroke human brain...
April 19, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28418785/metabolomics-analysis-of-the-osteogenic-differentiation-of-umbilical-cord-blood-mesenchymal-stem-cells-reveals-differential-sensitivity-to-osteogenic-agents
#4
Michail E Klontzas, Spyros I Vernardis, Manolis Heliotis, Eleftherios Tsiridis, Athanasios Mantalaris
Mesenchymal stem cells (MSCs) of fetal origin, such as umbilical cord blood MSCs (UCB MSCs), have emerged as a promising cell source for musculoskeletal tissue regeneration because of their higher proliferation potential, lack of donor site morbidity, and their off-the-shelf potential. MSCs differentiated toward the osteogenic lineage exhibit a specific metabolic phenotype characterized by reliance to oxidative phosphorylation for energy production and reduced glycolytic rates. Currently, limited information exists on the metabolic transitions at different stages of the osteogenic process after osteoinduction with different agents...
April 18, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28418782/knockdown-of-il-8-provoked-premature-senescence-of-placenta-derived-mesenchymal-stem-cells
#5
Juan-Juan Li, Feng-Xia Ma, You-Wei Wang, Fang Chen, Shi-Hong Lu, Ying Chi, Wen-Jing Du, Bao-Quan Song, Liang-Ding Hu, Hu Chen, Zhong-Chao Han
Mesenchymal stem cells (MSCs) have shown promise for use in cell therapy, and due to their tumor tropism can serve as vehicles for delivering therapeutic agents to tumor sites. Because interleukin-8 (IL-8) is known to mediate the protumor effect of MSCs, elimination of IL-8 secretion by MSCs may enhance their safety for use in cancer gene therapy. However, little is known concerning the effect of endogenously secreted IL-8 on MSCs. We performed studies using placenta-derived MSCs (PMSCs) to determine whether knockdown of IL-8 would influence their biological activity...
April 18, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28401804/human-umbilical-cord-mesenchymal-stromal-cells-improve-survival-and-bacterial-clearance-in-neonatal-sepsis-in-rats
#6
Yueniu Zhu, Liqun Xu, Jennifer J P Collins, Arul Vadivel, Chanèle Cyr-Depauw, Shumei Zhong, Lars Mense, Marius A Möbius, Bernard Thébaud
Sepsis is the main cause of morbidity and mortality in neonates. MSCs are potent immune-modulatory cells. Their effect in neonatal sepsis has never been explored. We hypothesized that human umbilical cord-derived MSCs (hUC-MSCs) improve survival in experimental neonatal sepsis. Sepsis was induced in 3-day-old rats by intravenous injection of <i>Escherichia coli (E. coli</i>, 5×10<sup>5</sup>/rat). One hour after infection, rats were treated intravenously with either normal saline, hUC-MSCs or with interferon (IFN)-γ preconditioned hUC-MSCs (10<sup>7</sup> cells/kg)...
April 12, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28401797/the-state-of-skewed-x-chromosome-inactivation-is-retained-in-the-induced-pluripotent-stem-cells-from-a-female-with-hemophilia-b
#7
Cuicui Lyu, Jun Shen, Jianping Zhang, Feng Xue, Xiaofan Liu, Wei Liu, Rongfeng Fu, Liyan Zhang, Huiyuan Li, Donglei Zhang, Xiaobing Zhang, Tao Cheng, Renchi Yang, Lei Zhang
Skewed X chromosome inactivation (XCI) is a rare reason for hemophilia B in females. It is indefinite whether X chromosome reactivation (XCR) would occur when cells of hemophilia B patients with skewed XCI were reprogrammed into induced pluripotent stem cells (iPSCs). In this study, we investigated a female hemophilia B patient with a known F9 gene mutation: c.676C>T, p.Arg226Trp. We demonstrated that skewed XCI was the pathogenesis of the patient, and we successfully generated numerous iPSCs colonies of the patient from PBMNCs, which was the first time for generating hemophilia-specific iPSCs from PBMNCs...
April 12, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28398169/paving-the-way-towards-complex-blood-brain-barrier-models-using-pluripotent-stem-cells
#8
Karin Lauschke, Lise Frederiksen, Vanessa J Hall
A tissue with great need to be modelled in vitro is the blood-brain barrier (BBB). The BBB is a tight barrier that covers all blood vessels in the brain and separates the brain microenvironment from the blood system. It consists of three cell types (neurovascular unit (NVU)) that contribute to the unique tightness and selective permeability of the BBB and has been shown to be disrupted in many diseases and brain disorders, such as, vascular dementia, stroke, multiple sclerosis and Alzheimer's disease. Given the progress that pluripotent stem cells (PSCs) have made in the last two decades, it is now possible to produce many cell types from the BBB and even partially recapitulate this complex tissue in vitro...
April 11, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28394200/alteration-analysis-of-bone-marrow-mesenchymal-stromal-cells-from-de-novo-acute-myeloid-leukemia-patients-at-diagnosis
#9
Laura Desbourdes, Joaquim Javary, Thomas Charbonnier, Nicole Ishac, Jerome Bourgeais, Aurore Iltis, Jean-Claude Chomel, Ali Turhan, Fabien Guilloton, Karin Tarte, Marie-Veronique Demattei, Elfi Ducrocq, Florence Rouleux-Bonnin, Emmanuel Gyan, Olivier Hérault, Jorge Domenech
Bone marrow (BM)-derived mesenchymal stromal cells (MSCs) frequently display alterations in several hematologic disorders, such as acute lymphoid leukemia, acute myeloid leukemia (AML), and myelodysplastic syndromes. In acute leukemias, it is not clear whether MSC alterations contribute to the development of the malignant clone or whether they are simply the effect of tumor expansion on the microenvironment. We extensively investigated the characteristics of MSCs isolated from the BM of patients with de novo AML at diagnosis (L-MSCs) in terms of phenotype (gene and protein expression, apoptosis and senescence levels, DNA double-strand break formation) and functions (proliferation and clonogenic potentials, normal and leukemic hematopoiesis-supporting activity)...
April 10, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28381110/the-role-of-nmda-receptors-in-neural-stem-cell-proliferation-and-differentiation
#10
Adri Chakraborty, Suzanne Murphy, Natalia Coleman
N-methyl-D-aspartate receptors (NMDARs) are expressed abundantly in the brain and play an important role in the regulation of neuronal development, learning, memory, neurodegenerative diseases, and neurogenesis, all of which is extensively discussed in reviews published elsewhere. While the number of research articles on the developmental and neurological cues that trigger NMDAR localization across a developing neuron and the role of the NMDAR in embryonic and adult stem cell proliferation and differentiation has been growing dramatically over the past few years, there is not a single review on this latter general topic...
April 5, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28376684/equine-mesenchymal-stromal-cells-retain-a-pericyte-like-phenotype
#11
Cristina L Esteves, Tara A Sheldrake, Lucy Dawson, Timothy Menghini, Elisabeth Rink, Karin Amilon, Nusrat Khan, Bruno Peault, Xavier Donadeu
Mesenchymal Stem/Stromal Cells (MSCs) have been used in human and equine regenerative medicine, and interest in exploiting their potential has increased dramatically over the years. Despite significant effort to characterize equine MSCs, the actual origin of these cells and how much of their native phenotype is maintained in culture have not been determined. In this study, we investigated the relationship between MSCs, derived from adipose tissue (AT) and bone marrow (BM), and pericytes in the horse. Both pericyte (CD146, NG2 and αSMA) and MSC (CD29, CD90 and CD73) markers were detected in equine adipose tissue and co-localized around blood vessels...
April 4, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28351210/expression-of-pluripotency-markers-in-non-pluripotent-human-neural-stem-and-progenitor-cells
#12
Per Henrik Vincent, Eirikur Benedikz, Per Uhlen, Outi Hovatta, Erik Sundström
Non-pluripotent neural progenitor cells (NPCs) derived from the human fetal central nervous system were found to express a number of mRNA species associated with pluripotency, such as NANOG, REX1 and OCT4. The expression was restricted to small subpopulations of NPCs. In contrast to pluripotent stem cells there was no co-expression of the pluripotency-associated genes studied. Although expression of these genes rapidly declined during in vitro differentiation of NPCs, we found no evidence that the discrete expression was associated with markers of the multipotent neural stem cells (NSCs) (CD133+/CD24lo), with the capacity of sphere-formation or high cell proliferation rates...
March 28, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28181858/evaluation-of-immunomodulatory-properties-of-feline-mesenchymal-stem-cells
#13
Maciej Parys, John M Kruger, Vilma Yuzbasiyan-Gurkan
Mesenchymal stem cells (MSC) offer a novel approach to treatment of inflammatory disorders in humans and companion animals. Cats spontaneously develop a wide variety of inflammatory disorders and may potentially benefit from MSC-based therapies. Multiple genes are involved in immunomodulation by MSC and interspecies differences between expressions of these genes exist. The goals of the study were to characterize the expression of genes known to be involved in MSC-based immunomodulation and determine the effect of MSC on proliferation of T cells in coculture experiments with peripheral blood mononuclear cells (PBMC)...
March 28, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28346802/metabolome-profiling-of-partial-and-fully-reprogrammed-induced-pluripotent-stem-cells
#14
Soon-Jung Park, Sang A Lee, Nutan Prasain, Daekyeong Bae, Hyunsu Kang, Taewon Ha, Jong Soo Kim, Ki-Sung Hong, Charlie Mantel, Sung-Hwan Moon, Hal E Broxmeyer, Man Ryul Lee
Acquisition of proper metabolomic fate is required to convert somatic cells toward fully reprogrammed pluripotent stem cells. The majority of induced pluripotent stem cells (iPSCs) are partially reprogrammed and have a transcriptome different from that of the pluripotent stem cells. The metabolomic profile and mitochondrial metabolic functions required to achieve full reprogramming of somatic cells to iPSC status have not yet been elucidated. Clarification of the metabolites underlying reprogramming mechanisms should enable further optimization to enhance the efficiency of obtaining fully reprogrammed iPSCs...
March 27, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28178868/low-level-laser-effect-on-proliferation-migration-and-antiapoptosis-of-mesenchymal-stem-cells
#15
Kan Yin, Rongjia Zhu, Shihua Wang, Robert Chunhua Zhao
Mesenchymal stem cells (MSCs) have been proved to be an important element in cell-based therapy. Photobiomodulation used extremely low-level lasers (LLLs) to affect the behavior of cells. The effect mechanism of LLLs on MSCs from human remained to be discovered. In this study, cell viability was assessed using MTS assays and cell cycle was evaluated by fluorescence-activated cell sorting (FACS). The influence of LLLs on mitochondrial biogenesis (fission or fusion) and function (ATP, reactive oxygen species [ROS], nitric oxide [NO]) was evaluated by transmission electron microscope, FACS, quantitative real time polymerase chain reaction (q-PCR), and immunocytochemistry...
March 27, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28340549/long-term-in-vivo-monitoring-of-adult-derived-human-liver-stem-progenitor-cells-by-bioluminescence-imaging-pet-and-contrast-enhanced-ct
#16
Mei-Ju Hsu, Julie Prigent, Pierre-Edouard Dollet, Joachim Ravau, Lionel Larbanoix, Gaetan Van Simaeys, Anne Bol, Vincent Grégoire, Serge Goldman, Gisèle Deblandre, Mustapha Najimi, Etienne Sokal, Catherine Lombard
Adult-derived human liver stem/progenitor cells (ADHLSCs) have the potential to alleviate liver injury. However, the optimal delivery route and long-term biodistribution of ADHLSCs remains unclear. In this paper, we used a triple fusion reporter system to determine the kinetic differences in the biodistribution of ADHLSCs following intrasplenic (IS) and intrahepatic (IH) administration in SCID-beige mice. ADHLSCs were transduced with a lentiviral vector expressing a triple-fusion reporter comprising renilla luciferase, monomeric red fluorescent protein and truncated HSV-1 thymidine kinase...
March 24, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28335680/ampk-knockdown-in-placental-labyrinthine-progenitor-cells-results-in-restriction-of-critical-energy-resources-and-terminal-differentiation-failure
#17
Christopher A Waker, Renee E Albers, Richard L Pye, Savannah R Doliboa, Christopher N Wyatt, Thomas L Brown, Debra Ann Mayes
Placental abnormalities can cause Pregnancy-Associated Disorders including preeclampsia, intrauterine growth restriction, and placental insufficiency that result in complications for both the mother and fetus. Trophoblast cells within the labyrinthine layer of the placenta facilitate the exchange of nutrients, gases, and waste between mother and fetus; therefore, the development of this cell layer is critical for fetal development. As trophoblast cells differentiate, it is assumed their metabolism changes with their energy requirements...
March 23, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28186467/effect-of-the-microenvironment-on-mesenchymal-stem-cell-paracrine-signaling-opportunities-to-engineer-the-therapeutic-effect
#18
Gina D Kusuma, James Carthew, Rebecca Lim, Jessica E Frith
Cues from the extracellular environment, including physical stimuli, are well known to affect mesenchymal stem cell (MSC) properties in terms of proliferation and differentiation. Many therapeutic strategies are now targeting this knowledge to increase the efficacy of cell therapies, typically employed to repair tissue functions in the event of injury, either by direct engraftment into the target tissue or differentiation into mature tissues. However, it is now envisioned that harnessing the repertoire of factors secreted by MSCs (termed the secretome) may provide an alternate to these cell therapies...
March 23, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28193136/ccctc-binding-factor-transcriptionally-targets-wdr5-to-mediate-somatic-cell-reprogramming
#19
Feng Wang, Jinghua Han, Li Wang, Ying Jing, Zhu Zhu, Dawei Hui, Zhaohui Wang, Yangzi Wang, Yang Dong, Tao Tan
It was previously reported that WD repeat domain 5 (Wdr5), a core member of the mammalian Trithorax complex, is a key regulator for the maintenance of embryonic stem (ES) cell pluripotency and somatic cell reprogramming. However, it remains unclear whether other factors are also involved in this process. Here, we show that CTCF is an upstream regulator of Wdr5: It physically associates with Wdr5 and further transcriptionally controls its expression by directly targeting the Wdr5 gene promoter. As a downstream effector, overexpression of Wdr5 can rescue ES cells from growth defects and decreased formation of induced pluripotent stem cells caused by CTCF knockdown...
March 20, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28125926/coordinated-proliferation-and-differentiation-of-human-induced-pluripotent-stem-cell-derived-cardiac-progenitor-cells-depend-on-bone-morphogenetic-protein-signaling-regulation-by-gremlin-2
#20
Jeffery B Bylund, Linh T Trinh, Cassandra P Awgulewitsch, David T Paik, Christopher Jetter, Rajneesh Jha, Jianhua Zhang, Kristof Nolan, Chunhui Xu, Thomas B Thompson, Timothy J Kamp, Antonis K Hatzopoulos
Heart development depends on coordinated proliferation and differentiation of cardiac progenitor cells (CPCs), but how the two processes are synchronized is not well understood. Here, we show that the secreted Bone Morphogenetic Protein (BMP) antagonist GREMLIN 2 (GREM2) is induced in CPCs shortly after cardiac mesoderm specification during differentiation of human pluripotent stem cells. GREM2 expression follows cardiac lineage differentiation independently of the differentiation method used, or the origin of the pluripotent stem cells, suggesting that GREM2 is linked to cardiogenesis...
March 20, 2017: Stem Cells and Development
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