کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2093421 1081958 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Activin/Nodal Signaling Supports Retinal Progenitor Specification in a Narrow Time Window during Pluripotent Stem Cell Neuralization
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوتکنولوژی یا زیست‌فناوری
پیش نمایش صفحه اول مقاله
Activin/Nodal Signaling Supports Retinal Progenitor Specification in a Narrow Time Window during Pluripotent Stem Cell Neuralization
چکیده انگلیسی


• Activin signaling induces retinal fate in differentiating mouse and human ESCs
• Activin can induce retinal fate within a narrow temporal window
• Markers of mature retinal cells are expressed by Activin-treated ESCs
• Shh signaling induces hypothalamic fates in differentiating mouse ESCs

SummaryRetinal progenitors are initially found in the anterior neural plate region known as the eye field, whereas neighboring areas undertake telencephalic or hypothalamic development. Eye field cells become specified by switching on a network of eye field transcription factors, but the extracellular cues activating this network remain unclear. In this study, we used chemically defined media to induce in vitro differentiation of mouse embryonic stem cells (ESCs) toward eye field fates. Inhibition of Wnt/β-catenin signaling was sufficient to drive ESCs to telencephalic, but not retinal, fates. Instead, retinal progenitors could be generated from competent differentiating mouse ESCs by activation of Activin/Nodal signaling within a narrow temporal window corresponding to the emergence of primitive anterior neural progenitors. Activin also promoted eye field gene expression in differentiating human ESCs. Our results reveal insights into the mechanisms of eye field specification and open new avenues toward the generation of retinal progenitors for translational medicine.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 5, Issue 4, 13 October 2015, Pages 532–545
نویسندگان
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