Self-organization of human embryonic stem cells on micropatterns.
Self-organization of human embryonic stem cells on micropatterns.
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人类胚胎干细胞在微模式上的自组织。
DOI:
10.1038/nprot.2016.131
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发表时间:
2016-11
期刊:
影响因子:
14.8
通讯作者:
Warmflash A
中科院分区:
文献类型:
--
作者:
Deglincerti A;Etoc F;Guerra MC;Martyn I;Metzger J;Ruzo A;Simunovic M;Yoney A;Brivanlou AH;Siggia E;Warmflash A
Fate allocation in the gastrulating embryo is spatially organized as cells differentiate to specialized cell types depending on their positions with respect to the body axes. There is a need for in vitro protocols that allow the study of spatial organization associated with this developmental transition. While embryoid bodies and organoids can exhibit some spatial organization of differentiated cells, these methods do not yield consistent and fully reproducible results. Here, we describe a micropatterning approach where human embryonic stem cells are confined to disk-shaped, sub-millimeter colonies. After 42 hours of BMP4 stimulation, cells form self-organized differentiation patterns in concentric radial domains, which express specific markers associated with the embryonic germ layers, reminiscent of gastrulating embryos. Our protocol takes 3 days; it uses commercial microfabricated slides (CYTOO), human laminin-521 (LN-521) as extra-cellular matrix coating, and either conditioned or chemically-defined medium (mTeSR). Differentiation patterns within individual colonies can be determined by immunofluorescence and analyzed with cellular resolution. Both the size of the micropattern and the type of medium affect the patterning outcome. The protocol is appropriate for personnel with basic stem cell culture training. This protocol describes a robust platform for quantitative analysis of the mechanisms associated with pattern formation at the onset of gastrulation.
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影响因子:
64.8
作者:
通讯作者:
--
影响因子:
4.5
作者:
Gniadek, Thomas J.;Warren, Graham
通讯作者:
Warren, Graham
影响因子:
3
作者:
Mathew B;Schmitz A;Muñoz-Descalzo S;Ansari N;Pampaloni F;Stelzer EH;Fischer SC
通讯作者:
Fischer SC
影响因子:
6.1
作者:
Azioune, Ammar;Storch, Marko;Piel, Matthieu
通讯作者:
Piel, Matthieu
影响因子:
64.8
作者:
Eiraku, Mototsugu;Takata, Nozomu;Sasai, Yoshiki
通讯作者:
Sasai, Yoshiki