共查询到20条相似文献,搜索用时 45 毫秒
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Screening the expression characteristics of several miRNAs in G93A‐SOD1 transgenic mouse: altered expression of miRNA‐124 is associated with astrocyte differentiation by targeting Sox2 and Sox9
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Fenghua Zhou Caixia Zhang Yingjun Guan Yanchun Chen Qiang Lu Linlin Jie Hailing Gao Hongmei Du Haoyun Zhang Yongxin Liu Xin Wang 《Journal of neurochemistry》2018,145(1):51-67
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Cooperation of Sall4 and Sox8 transcription factors in the regulation of the chicken Sox3 gene during otic placode development
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Yu Okamoto Naoko Nishimura Kazunari Matsuda Deshani C. Ranawakage Yusuke Kamachi Hisato Kondoh Masanori Uchikawa 《Development, growth & differentiation》2018,60(3):133-145
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Selective influence of Sox2 on POU transcription factor binding in embryonic and neural stem cells
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Tapan Kumar Mistri Arun George Devasia Lee Thean Chu Wei Ping Ng Florian Halbritter Douglas Colby Ben Martynoga Simon R Tomlinson Ian Chambers Paul Robson Thorsten Wohland 《EMBO reports》2015,16(9):1177-1191
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Three‐dimensional (3D) stem cell differentiation cultures recently emerged as a novel model system for investigating human embryonic development and disease progression in vitro, complementing existing animal and two‐dimensional (2D) cell culture models. Organoids, the 3D self‐organizing structures derived from pluripotent or somatic stem cells, can recapitulate many aspects of structural organization and functionality of their in vivo organ counterparts, thus holding great promise for biomedical research and translational applications. Importantly, faithful recapitulation of disease and development processes relies on the ability to modify the genomic contents in organoid cells. The revolutionary genome engineering technologies, CRISPR/Cas9 in particular, enable investigators to generate various reporter cell lines for prompt validation of specific cell lineages as well as to introduce disease‐associated mutations for disease modeling. In this review, we provide historical overviews, and discuss technical considerations, and potential future applications of genome engineering in 3D organoid models. 相似文献
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The transcription factor prospero homeobox protein 1 is a direct target of SoxC proteins during developmental vertebrate neurogenesis
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Johannes M. Thalhammer Franziska Fröb Melanie Küspert Simone Reiprich Elli‐Anna Balta D. Chichung Lie Michael Wegner Elisabeth Sock 《Journal of neurochemistry》2018,146(3):251-268
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Haleh Mokabber Nowruz Najafzadeh Mohammad Mohammadzadeh Vardin 《Journal of cellular physiology》2019,234(6):8941-8950
Hair follicle stem cells (HFSCs) are able to differentiate into neurons and glial cells. Distinct microRNAs (miRNAs) regulate the proliferation and differentiation of HFSCs. However, the exact role of miR-124 in the neural differentiation of HFSCs has not been elucidated. HFSCs were isolated from mouse whisker follicles. miR-9, let-7b, and miR-124, Ptbp1 , and Sox9 expression levels were detected by real-time polymerase chain reaction (RT-PCR). The influence of miR-124 transfection was evaluated using immunostaining. We demonstrated that miR-124 and let-7b expression levels were significantly increased after the neural differentiation. Sox9 and Ptbp1 were identified as the target of miR-124 in the HFSCs. During neural differentiation and miR-124 mimicking, Ptbp1 and Sox9 levels were decreased. Moreover, the miR-124 overexpression increased MAP2 (58.43 ± 11.26) and NeuN (48.34 ± 11.15) proteins expression. The results demonstrated that miR-124 may promote the differentiation of HFSCs into neuronal cells by targeting Sox9 and Ptbp1. 相似文献
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The major role of radial glial cells in neuronal development is to provide support and guidance for neuronal migration. In vitro, neurons, astrocytes and oligodendrocytes have also been generated from neural stem cells and embryonic stem cells, but the generation of radial glial cells in vitro has not yet been reported. Since radial glial cells can lead to neurons and astrocytes during brain development, neurogenesis and gliogenesis of stem cells in vitro may at least in part also utilize the same mechanisms. To test this hypothesis, we utilized five different clones of embryonic (ES) and embryonal carcinoma (EC) stem cell lines to investigate the differentiation of radial glial cells during in vitro neural differentiation. Here, we demonstrate that radial glial cells can be generated from ES/EC cell lines. These ES/EC cell‐derived radial glial cells are similar in morphology to radial glial cells in vivo. They also express several cytoskeletal markers that are characteristics of radial glial cells in vivo. The processes of these in vitro‐generated radial glial cells are organized into scaffolds that appear to support the migration of newly generated neurons in culture. Like radial glial cells in vivo, they appear to differentiate subsequently into astrocytes. Differentiation of radial glial cells may be a common pathway during in vitro neural differentiation of ES cells. This novel in vitro model system may facilitate the investigation of regulation of radial glial cell differentiation and its biological function. Acknowledgements: Supported by USPHS Grant NS11853 and a grant from the Children's Medical Research Foundation. 相似文献
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David G. Gonsalvez Mathew Li‐Yuen‐Fong Kylie N. Cane Lincon A. Stamp Heather M. Young Colin R. Anderson 《Developmental neurobiology》2015,75(3):287-301
The rate of proliferation of cells depends on the proportion of cycling cells and the frequency of cell division. Here, we describe in detail methods for quantifying the proliferative behavior of specific cell types in situ, and use the method to examine cell cycle dynamics in two neural crest derivatives—dorsal root ganglia (DRG) using frozen sections, and the enteric nervous system (ENS) using wholemount preparations. In DRG, our data reveal a significant increase in cell cycle length and a decrease in the number of cycling Sox10+ progenitor cells at E12.5–E13.5, which coincides with the commencement of glial cell generation. In the ENS, the vast majority of Sox10+ cells remain proliferative during embryonic development, with only relatively minor changes in cell cycle parameters. Previous studies have identified proliferating cells expressing neuronal markers in the developing ENS; our data suggest that most cells undergoing neuronal differentiation in the developing gut commence expression of neuronal markers during G2 phase of their last division. Combined with previous studies, our findings show that different populations of neural crest‐derived cells show tissue‐specific patterns of proliferation. © 2014 Wiley Periodicals, Inc. Develop Neurobiol 75: 287–301, 2015 相似文献