Decoding Cortical Glial Cell Development.

Decoding Cortical Glial Cell Development.
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解码皮质神经胶质细胞的发育

DOI:
10.1007/s12264-021-00640-9
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发表时间:
2021-04
影响因子:
5.6
通讯作者:
Yang Z
Yang Z
中科院分区:
医学2区
文献类型:
--
作者:
Li X;Liu G;Yang L;Li Z;Zhang Z;Xu Z;Cai Y;Du H;Su Z;Wang Z;Duan Y;Chen H;Shang Z;You Y;Zhang Q;He M;Chen B;Yang Z

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小鼠皮质放射状神经胶质细胞(RGC)是在胚胎发育后期产生皮质少突胶质细胞、星形胶质细胞和嗅球(OB)GABA能中间神经元的原代神经干细胞。在理解这些不同的细胞亚型是如何产生的方面存在根本性的差距。在这里,通过将单细胞RNA-Seq与交叉谱系分析相结合,我们表明,从E16.5左右开始,新皮质RGC开始产生ASCL 1 +EGFR+顶端多能中间祖细胞(MIPC),然后分化为表达ASCL 1,EGFR,OLIG 2和MKI 67的基底MIPC。这些基础MIPC经历几轮分裂,产生大多数皮质少突胶质细胞和星形胶质细胞以及OB中间神经元的亚群。最后,单细胞ATAC-Seq支持我们的模型的遗传逻辑的规范和分化的皮质神经胶质细胞和OB中间神经元。总之,这项工作揭示了皮质放射状胶质细胞谱系进展的过程和皮质星形胶质细胞和少突胶质细胞的发育起源。
Mouse cortical radial glial cells (RGCs) are primary neural stem cells that give rise to cortical oligodendrocytes, astrocytes, and olfactory bulb (OB) GABAergic interneurons in late embryogenesis. There are fundamental gaps in understanding how these diverse cell subtypes are generated. Here, by combining single-cell RNA-Seq with intersectional lineage analyses, we show that beginning at around E16.5, neocortical RGCs start to generate ASCL1+EGFR+apical multipotent intermediate progenitors (MIPCs), which then differentiate into basal MIPCs that express ASCL1, EGFR, OLIG2, and MKI67. These basal MIPCs undergo several rounds of divisions to generate most of the cortical oligodendrocytes and astrocytes and a subpopulation of OB interneurons. Finally, single-cell ATAC-Seq supported our model for the genetic logic underlying the specification and differentiation of cortical glial cells and OB interneurons. Taken together, this work reveals the process of cortical radial glial cell lineage progression and the developmental origins of cortical astrocytes and oligodendrocytes.
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