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Cell Stem Cell

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https://www.readbyqxmd.com/read/28102896/impact-of-pre-transplant-depression-on-outcomes-of-allogeneic-and-autologous-hematopoietic-stem-cell-transplantation
#1
Areej El-Jawahri, Yi-Bin Chen, Ruta Brazauskas, Naya He, Stephanie J Lee, Jennifer M Knight, Navneet Majhail, David Buchbinder, Raquel M Schears, Baldeep M Wirk, William A Wood, Ibrahim Ahmed, Mahmoud Aljurf, Jeff Szer, Sara M Beattie, Minoo Battiwalla, Christopher Dandoy, Miguel-Angel Diaz, Anita D'Souza, Cesar O Freytes, James Gajewski, Usama Gergis, Shahrukh K Hashmi, Ann Jakubowski, Rammurti T Kamble, Tamila Kindwall-Keller, Hilard M Lazarus, Adriana K Malone, David I Marks, Kenneth Meehan, Bipin N Savani, Richard F Olsson, David Rizzieri, Amir Steinberg, Dawn Speckhart, David Szwajcer, Helene Schoemans, Sachiko Seo, Celalettin Ustun, Yoshiko Atsuta, Jignesh Dalal, Carmem Sales-Bonfim, Nandita Khera, Theresa Hahn, Wael Saber
BACKGROUND: To evaluate the impact of depression before autologous and allogeneic hematopoietic cell transplantation (HCT) on clinical outcomes posttransplantation. METHODS: We analyzed data from the Center for International Blood and Marrow Transplant Research to compare outcomes after autologous (n = 3786) or allogeneic (n = 7433) HCT for adult patients with hematologic malignancies with an existing diagnosis of pre-HCT depression requiring treatment versus those without pre-HCT depression...
January 19, 2017: Cancer
https://www.readbyqxmd.com/read/28102850/japanese-encephalitis-virus-induces-human-neural-stem-progenitor-cell-death-by-elevating-grp78-phb-and-hnrnpc-through-er-stress
#2
Sriparna Mukherjee, Noopur Singh, Nabonita Sengupta, Mahar Fatima, Pankaj Seth, Anita Mahadevan, Susarla Krishna Shankar, Arindam Bhattacharyya, Anirban Basu
Japanese encephalitis virus (JEV), which is a causative agent of sporadic encephalitis, harbours itself inside the neural stem/progenitor cells. It is a well-known fact that JEV infects neural stem/progenitor cells and decreases their proliferation capacity. With mass spectrometry-based quantitative proteomic study, it is possible to reveal the impact of virus on the stem cells at protein level. Our aim was to perceive the stem cell proteomic response upon viral challenge. We performed a two-dimensional gel electrophoresis-based proteomic study of the human neural stem cells (hNS1 cell line) post JEV infection and found that 13 proteins were differentially expressed...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102846/hepatitis-b-virus-x-protein-promotes-the-stem-like-properties-of-ov6-cancer-cells-in-hepatocellular-carcinoma
#3
Chao Wang, Ming-da Wang, Peng Cheng, Hai Huang, Wei Dong, Wei-Wei Zhang, Peng-Peng Li, Chuan Lin, Ze-Ya Pan, Meng-Chao Wu, Wei-Ping Zhou
Hepatitis B virus X protein (HBx) and cancer stem-like cells (CSCs) have both been implicated in the occurrence and development of HBV-related hepatocellular carcinoma (HCC). However, whether HBx contributes to the stem-like properties of OV6(+) CSCs in HCC remains elusive. In this study, we showed that the concomitant expression of HBx and OV6 was closely associated with the clinical outcomes and prognosis of patients with HBV-related HCC. HBx was required for the stem-like properties of OV6(+) liver CSCs, including self-renewal, stem cell-associated gene expression, tumorigenicity and chemoresistance...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102845/h19-let-7-lin28-reciprocal-negative-regulatory-circuit-promotes-breast-cancer-stem-cell-maintenance
#4
Fei Peng, Ting-Ting Li, Kai-Li Wang, Guo-Qing Xiao, Ju-Hong Wang, Hai-Dong Zhao, Zhi-Jie Kang, Wen-Jun Fan, Li-Li Zhu, Mei Li, Bai Cui, Fei-Meng Zheng, Hong-Jiang Wang, Eric W-F Lam, Bo Wang, Jie Xu, Quentin Liu
Long noncoding RNA-H19 (H19), an imprinted oncofetal gene, has a central role in carcinogenesis. Hitherto, the mechanism by which H19 regulates cancer stem cells, remains elusive. Here we show that breast cancer stem cells (BCSCs) express high levels of H19, and ectopic overexpression of H19 significantly promotes breast cancer cell clonogenicity, migration and mammosphere-forming ability. Conversely, silencing of H19 represses these BCSC properties. In concordance, knockdown of H19 markedly inhibits tumor growth and suppresses tumorigenesis in nude mice...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102844/human-adipose-stem-cell-differentiation-is-highly-affected-by-cancer-cells-both-in-vitro-and-in-vivo-implication-for-autologous-fat-grafting
#5
Francesca Paino, Marcella La Noce, Diego Di Nucci, Giovanni Francesco Nicoletti, Rosa Salzillo, Alfredo De Rosa, Giuseppe Andrea Ferraro, Gianpaolo Papaccio, Vincenzo Desiderio, Virginia Tirino
Recent studies showed that mesenchymal stem cells derived from adipose tissue can promote tumour progression, raising some concerns regarding their use in regenerative medicine. In this context, we co-cultured either SAOS2 osteosarcoma or MCF7 breast cancer cells with human adipose stem cells (hASCs), in order to evaluate potential effects of cancer cells on hASCs differentiation, in vitro and in vivo. In this study we observed that both SAOS2 and MCF7 cell lines induced an increase in hASCs proliferation, compared to hASCs alone, but, surprisingly, neither changes in the expression of CD90, CD29, CD324 and vimentin, nor variations in the Twist and Slug mRNAs were detectable...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102837/precise-and-efficient-scarless-genome-editing-in-stem-cells-using-correct
#6
Dylan Kwart, Dominik Paquet, Shaun Teo, Marc Tessier-Lavigne
CRISPR/Cas9 is a promising tool for genome-editing DNA in cells with single-base-pair precision, which allows novel in vitro models of human disease to be generated-e.g., in pluripotent stem cells. However, the accuracy of intended sequence changes can be severely diminished by CRISPR/Cas9's propensity to re-edit previously modified loci, causing unwanted mutations (indels) alongside intended changes. Here we describe a genome-editing framework termed consecutive re-guide or re-Cas steps to erase CRISPR/Cas-blocked targets (CORRECT), which, by exploiting the use of highly efficacious CRISPR/Cas-blocking mutations in two rounds of genome editing, enables accurate, efficient and scarless introduction of specific base changes-for example, in human induced pluripotent (iPS) stem cells...
February 2017: Nature Protocols
https://www.readbyqxmd.com/read/28102835/spinal-cord-regeneration-in-xenopus-laevis
#7
Gabriela Edwards-Faret, Rosana Muñoz, Emilio E Méndez-Olivos, Dasfne Lee-Liu, Victor S Tapia, Juan Larraín
Here we present a protocol for the husbandry of Xenopus laevis tadpoles and froglets, and procedures to study spinal cord regeneration. This includes methods to induce spinal cord injury (SCI); DNA and morpholino electroporation for genetic studies; in vivo imaging for cell analysis; a swimming test to measure functional recovery; and a convenient model for screening for new compounds that promote neural regeneration. These protocols establish X. laevis as a unique model organism for understanding spinal cord regeneration by comparing regenerative and nonregenerative stages...
February 2017: Nature Protocols
https://www.readbyqxmd.com/read/28102609/immunogenicity-of-hepatic-differentiated-human-umbilical-cord-mesenchymal-stem-cells-promoted-by-porcine-decellularized-liver-scaffolds
#8
Yi Li, Qiong Wu, Yujia Wang, Li Li, Fei Chen, Yujun Shi, Hong Bu, Ji Bao
Cell-based approaches, including hepatocyte transplantation and tissue-engineered livers, offer promising alternatives and are expected to help support patients with liver diseases until liver transplantation or recovery via regeneration of the damaged liver. However, the success of cell therapies remains dependent on how well the cells are accepted after transplantation and is directly related to their degree of immunogenicity. In this study, hepatic differentiation of human umbilical cord mesenchymal stem cells (hUC-MSCs) was induced in the traditional monolayer (2D) culture and newly established three-dimensional (3D) aggregation culture with the porcine decellularized liver scaffold (DLS) system (3D-DLS)...
January 19, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28102558/concise-reviews-regeneration-in-mammalian-cochlea-hair-cells-help-from-supporting-cells-transdifferentiation
#9
Bénédicte Franco, Brigitte Malgrange
It is commonly assumed that mammalian cochlear cells do not regenerate. Therefore, if hair cells are lost following an injury, no recovery could occur. However, during the first postnatal week, mice harbor some progenitor cells that retain the ability to give rise to new hair cells. These progenitor cells are in fact supporting cells. Upon hair cells loss, those cells are able to generate new hair cells both by direct transdifferentiation or following cell cycle re-entry and differentiation. However, this property of supporting cells is progressively lost after birth...
January 19, 2017: Stem Cells
https://www.readbyqxmd.com/read/28102490/genome-engineering-of-stem-cell-organoids-for-disease-modeling
#10
REVIEW
Yingmin Sun, Qiurong Ding
Precision medicine emerges as a new approach that takes into account individual variability. Successful realization of precision medicine requires disease models that are able to incorporate personalized disease information and recapitulate disease development processes at the molecular, cellular and organ levels. With recent development in stem cell field, a variety of tissue organoids can be derived from patient specific pluripotent stem cells and adult stem cells. In combination with the state-of-the-art genome editing tools, organoids can be further engineered to mimic disease-relevant genetic and epigenetic status of a patient...
January 19, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28102370/corrigendum-mesenchymal-stem-cells-reversed-morphine-tolerance-and-opioid-induced-hyperalgesia
#11
Zhen Hua, LiPing Liu, Jun Shen, Kathleen Cheng, Aijun Liu, Jing Yang, Lina Wang, Tingyu Qu, HongNa Yang, Yan Li, Haiyan Wu, John Narouze, Yan Yin, Jianguo Cheng
No abstract text is available yet for this article.
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102326/demonstration-of-the-protein-involvement-in-cell-electropermeabilization-using-confocal-raman-microspectroscopy
#12
Antoine Azan, Valérie Untereiner, Cyril Gobinet, Ganesh D Sockalingum, Marie Breton, Olivier Piot, Lluis M Mir
Confocal Raman microspectroscopy was used to study the interaction between pulsed electric fields and live cells from a molecular point of view in a non-invasive and label-free manner. Raman signatures of live human adipose-derived mesenchymal stem cells exposed or not to pulsed electric fields (8 pulses, 1 000 V/cm, 100 μs, 1 Hz) were acquired at two cellular locations (nucleus and cytoplasm) and two spectral bands (600-1 800 cm(-1) and 2 800-3 100 cm(-1)). Vibrational modes of proteins (phenylalanine and amide I) and lipids were found to be modified by the electropermeabilization process with a statistically significant difference...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102237/tracking-of-mesenchymal-stem-cells-with-fluorescence-endomicroscopy-imaging-in-radiotherapy-induced-lung-injury
#13
Jessica R Perez, Norma Ybarra, Frederic Chagnon, Monica Serban, Sangkyu Lee, Jan Seuntjens, Olivier Lesur, Issam El Naqa
Mesenchymal stem cells (MSCs) have potential for reducing inflammation and promoting organ repair. However, limitations in available techniques to track them and assess this potential for lung repair have hindered their applicability. In this work, we proposed, implemented and evaluated the use of fluorescence endomicroscopy as a novel imaging tool to track MSCs in vivo. MSCs were fluorescently labeled and injected into a rat model of radiation-induced lung injury via endotracheal (ET) or intravascular (IV) administration...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102231/cell-therapy-autologous-cardiac-stem-cells-for-congenital-hf
#14
Dario Ummarino
No abstract text is available yet for this article.
January 19, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28102225/glucocorticoid-receptor-signalling-activates-yap-in-breast-cancer
#15
Giovanni Sorrentino, Naomi Ruggeri, Alessandro Zannini, Eleonora Ingallina, Rebecca Bertolio, Carolina Marotta, Carmelo Neri, Elisa Cappuzzello, Mattia Forcato, Antonio Rosato, Miguel Mano, Silvio Bicciato, Giannino Del Sal
The Hippo pathway is an oncosuppressor signalling cascade that plays a major role in the control of cell growth, tissue homoeostasis and organ size. Dysregulation of the Hippo pathway leads to aberrant activation of the transcription co-activator YAP (Yes-associated protein) that contributes to tumorigenesis in several tissues. Here we identify glucocorticoids (GCs) as hormonal activators of YAP. Stimulation of glucocorticoid receptor (GR) leads to increase of YAP protein levels, nuclear accumulation and transcriptional activity in vitro and in vivo...
January 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28102196/whole-brain-3d-mapping-of-human-neural-transplant-innervation
#16
Jonas Doerr, Martin Karl Schwarz, Dirk Wiedermann, Anke Leinhaas, Alina Jakobs, Florian Schloen, Inna Schwarz, Michael Diedenhofen, Nils Christian Braun, Philipp Koch, Daniel A Peterson, Ulrich Kubitscheck, Mathias Hoehn, Oliver Brüstle
While transplantation represents a key tool for assessing in vivo functionality of neural stem cells and their suitability for neural repair, little is known about the integration of grafted neurons into the host brain circuitry. Rabies virus-based retrograde tracing has developed into a powerful approach for visualizing synaptically connected neurons. Here, we combine this technique with light sheet fluorescence microscopy (LSFM) to visualize transplanted cells and connected host neurons in whole-mouse brain preparations...
January 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28102192/the-impact-of-micrornas-on-transcriptional-heterogeneity-and-gene-co-expression-across-single-embryonic-stem-cells
#17
Gennaro Gambardella, Annamaria Carissimo, Amy Chen, Luisa Cutillo, Tomasz J Nowakowski, Diego di Bernardo, Robert Blelloch
MicroRNAs act posttranscriptionally to suppress multiple target genes within a cell population. To what extent this multi-target suppression occurs in individual cells and how it impacts transcriptional heterogeneity and gene co-expression remains unknown. Here we used single-cell sequencing combined with introduction of individual microRNAs. miR-294 and let-7c were introduced into otherwise microRNA-deficient Dgcr8 knockout mouse embryonic stem cells. Both microRNAs induce suppression and correlated expression of their respective gene targets...
January 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28102174/modeling-dynamics-of-mutants-in-heterogeneous-stem-cell-niche
#18
Leili Shahriyari, Ali Mahdipour Shirayeh
Studying the stem cell (SC) niche architecture is a crucial step for investigating the process of oncogenesis and obtaining an effective stem cell therapy for various cancers. Recently, it has been observed that there are two groups of SCs in the SC niche collaborating with each other to maintain tissue homeostasis: border stem cells (BSCs), which are responsible in controlling the number of non-stem cells as well as stem cells, and central stem cells (CeSCs), which regulate the SC niche. Here, we develop a bi-compartmental stochastic model for the SC niche to study the spread of mutants within the niche...
January 19, 2017: Physical Biology
https://www.readbyqxmd.com/read/28102042/identification-of-a-10-10-matched-donor-for-patients-with-an-uncommon-haplotype-is-unlikely
#19
J A Olson, Y Gibbens, K Tram, J Kempenich, J Novakovich, K Buck, J Dehn
BACKGROUND: Despite over 6 million subjects contributing to the National Marrow Donor Program human leukocyte antigen (HLA) haplotype frequency reference data (HFD), haplotypes cannot be predicted from the HLA assignments of some patients searching for an unrelated donor (URD) in the Be The Match Registry®. We aimed to determine the incidence of these patient searches and whether haplotypes lacking from the HFD can be found among the low-resolution typed URD pool. MATERIALS AND METHODS: New NMDP searches with uncommon patient haplotypes (UPH), defined as a lack of haplotype pairs in any single ethnic group in the HFD based upon HLA-A˜C˜B˜DRB1˜DQB1, were identified...
February 2017: HLA
https://www.readbyqxmd.com/read/28102039/a-dispermic-chimerism-detected-in-a-taiwanese-potential-unrelated-hematopoietic-stem-cell-donor
#20
E K L Yang, S G E Marsh, P-Y Chen, C-P Chen, S-P Chen, P Y Lin
Chimerism is defined as the presence of 2 or more than 1 genetically distinct cell populations in an organism. Dispermic chimeras are derived from the fertilization of 1 or 2 matured nuclei by 2 sperms. We here report detection of a healthy and phenotypically normal female with normal ABO red blood cell typing in whom dispermic chimerism was suspected after 3 alleles were identified at multiple human leukocyte antigen (HLA) loci using molecular HLA analysis. Molecular HLA typing showed the donor to have 3 HLA-A, -B, -C, -DRB1, -DQB1 and -DPB1 alleles in blood, saliva and nail samples...
February 2017: HLA
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