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Stem Cells

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4 papers 0 to 25 followers
https://www.readbyqxmd.com/read/27799160/sensing-of-the-microbiota-by-nod1-in-mesenchymal-stromal-cells-regulates-murine-hematopoiesis
#1
Chiaki Iwamura, Nicolas Bouladoux, Yasmine Belkaid, Alan Sher, Dragana Jankovic
The microbiota are known to influence the generation of hematopoietic progenitors although the pathways underlying this process are still poorly understood. NOD1 and NOD2 are intracellular sensors for both Gram-positive and negative bacteria, but their role in steady-state hematopoiesis has never been characterized. We observed that stimulation with NOD1 or NOD2 ligand had no effect on the survival/proliferation of hematopoietic precursors. Nonetheless, NOD1 but not NOD2 ligand induced expression of multiple hematopoietic cytokines (IL-7, Flt3L, SCF, ThPO and IL-6) from bone marrow mesenchymal stromal cells (MSC) in vitro...
October 31, 2016: Blood
https://www.readbyqxmd.com/read/27070264/reprogramming-cancer-cells-overview-current-progress
#2
Kian Lam Lim, Hoon Koon Teoh, Pei Feng Choong, Hui Xin Teh, Soon Keng Cheong, Tunku Kamarul
INTRODUCTION: Cancer is a disease with genetic and epigenetic origins, and the possible effects of reprogramming cancer cells using the defined sets of transcription factors remain largely uninvestigated. In the handful of publications available so far, findings have shown that reprogramming cancer cells changed the characteristics of the cells to differ from the parental cancer cells. These findings indicated the possibility of utilizing reprogramming technology to create a disease model in the laboratory to be used in studying the molecular pathogenesis or for drug screening of a particular cancer model...
July 2016: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/26276716/reprogramming-cancer-cells-a-novel-approach-for-cancer-therapy-or-a-tool-for-disease-modeling
#3
REVIEW
Açelya Yilmazer, Irene de Lázaro, Hadiseh Taheri
Chromatin dynamics have been the major focus of many physiological and pathological processes over the past 20 years. Epigenetic mechanisms have been shown to be reshaped during both cellular reprogramming and tumorigenesis. For this reason, cancer cell reprogramming can provide a powerful tool to better understand both regenerative and cancer-fate processes, with a potential to develop novel therapeutic approaches. Recent studies showed that cancer cells can be reprogrammed to a pluripotent state by the overexpression of reprogramming transcription factors...
December 1, 2015: Cancer Letters
https://www.readbyqxmd.com/read/27666010/a-transient-developmental-hematopoietic-stem-cell-gives-rise-to-innate-like-b-and-t-cells
#4
Anna E Beaudin, Scott W Boyer, Jessica Perez-Cunningham, Gloria E Hernandez, S Christopher Derderian, Chethan Jujjavarapu, Eric Aaserude, Tippi MacKenzie, E Camilla Forsberg
The generation of distinct hematopoietic cell types, including tissue-resident immune cells, distinguishes fetal from adult hematopoiesis. However, the mechanisms underlying differential cell production to generate a layered immune system during hematopoietic development are unclear. Using an irreversible lineage-tracing model, we identify a definitive hematopoietic stem cell (HSC) that supports long-term multilineage reconstitution upon transplantation into adult recipients but does not persist into adulthood in situ...
September 15, 2016: Cell Stem Cell
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