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原文摘要:
: l* M5 s' O1 F: T+ z3 Q% g& fSpecification of transplantable astroglial subtypes from human pluripotent stem cells! z6 n0 v" ]+ Z8 M! V' @$ _
; T" N) j8 K j% G" L6 uHuman pluripotent stem cells (hPSCs) have been differentiated efficiently to neuronal cell types. However, directed differentiation of hPSCs to astrocytes and astroglial subtypes remains elusive. In this study, hPSCs were directed to nearly uniform populations of immature astrocytes (>90% S100β+ and GFAP+) in large quantities. The immature human astrocytes exhibit similar gene expression patterns as primary astrocytes, display functional properties such as glutamate uptake and promotion of synaptogenesis, and become mature astrocytes by forming connections with blood vessels after transplantation into the mouse brain. Furthermore, hPSC-derived neuroepithelia, patterned to rostral-caudal and dorsal-ventral identities with the same morphogens used for neuronal subtype specification, generate immature astrocytes that express distinct homeodomain transcription factors and display phenotypic differences of different astroglial subtypes. These human astroglial progenitors and immature astrocytes will be useful for studying astrocytes in brain development and function, understanding the roles of astrocytes in disease processes and developing novel treatments for neurological disorders.
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" S: I. Q# u( U% X希望作者附带上文献,因为这么看的话,觉得你题目和内容似乎有些不大相符……IPS和hPSC似乎不是一回事……本文的作者,张素春教授是做胚胎干细胞的……
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