Morphogen gradients are critical regulators of embryonic development. In this issue, Liu et al.¹ introduce a microfluidic system that externally applies morphogen gradients to an in vitro model of human embryo segmentation. It enables the investigation of signaling gradients during this developmental process at unprecedented levels of precision.

中文翻译：

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为胚胎分割奠定基础

形态发生梯度是胚胎发育的关键调节因子。在本期中，刘等人。 ¹介绍了一种微流体系统，该系统可将形态发生素梯度外部应用到人类胚胎分割的体外模型中。它能够以前所未有的精度研究这一发育过程中的信号梯度。