Analysis of early human neural crest development.

Analysis of early human neural crest development.
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DOI:
10.1016/j.ydbio.2010.05.012
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发表时间:
2010-08-15
影响因子:
2.7
通讯作者:
Garcia-Castro, Martin I.
Garcia-Castro, Martin I.
中科院分区:
生物学3区
文献类型:
--
作者:
Betters, Erin;Liu, Ying;Kjaeldgaard, Anders;Sundstrom, Erik;Garcia-Castro, Martin I.

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自1868年Wilhelm His描述了神经嵴细胞(NCC)以来,NCC出色的迁移和分化能力一直吸引着科学家。今天,经过对脊椎动物模式生物的深入研究,我们对NCC的起源、迁移和分化有了相当多的了解。然而,我们对人类胚胎中NCC发育的理解在很大程度上仍然是未知的,尽管神经嵴在几种人类病理学中起着重要作用。在这里,我们首次报告了卡内基分期(CS)12至18的人类胚胎中NCC迁移之前、期间或之后一系列分子标记物的表达。我们的工作证明了Sox 9,Sox 10和Pax 3转录因子在迁移前NCC中的表达,而活跃迁移的NCC显示额外的转录因子Pax 7和AP-2α。重要的是,虽然HNK-1标记了少数迁移的NCC,但p75 NTR标记了大部分这一人群。然而,p75 NTR和其他标志物在神经嵴外的广泛表达强调了鉴定其他标志物的需要,以提高我们研究人类NCC发展的能力,并能够产生更好的诊断和治疗工具。
The outstanding migration and differentiation capacities of neural crest cells (NCCs) have fascinated scientists since Wilhelm His described this cell population in 1868. Today, after intense research using vertebrate model organisms, we have gained considerable knowledge regarding the origin, migration and differentiation of NCCs. However, our understanding of NCC development in human embryos remains largely uncharacterized, despite the role the neural crest plays in several human pathologies. Here, we report for the first time the expression of a battery of molecular markers before, during, or following NCC migration in human embryos from Carnegie Stages (CS) 12 to 18. Our work demonstrates the expression of Sox9, Sox10 and Pax3 transcription factors in premigratory NCCs, while actively migrating NCCs display the additional transcription factors Pax7 and AP-2α. Importantly, while HNK-1 labels few migrating NCCs, p75NTR labels a large proportion of this population. However, the broad expression of p75NTR – and other markers - beyond the neural crest stresses the need for the identification of additional markers to improve our capacity to investigate human NCC development, and to enable the generation of better diagnostic and therapeutic tools.
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发表时间: 2008-07
影响因子: 2.5
作者:
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发表时间: 1998-08-07
期刊: FEBS LETTERS
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发表时间: 2005-06-01
期刊: NEOPLASIA
影响因子: 4.8
作者:
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