Cellular diversity and developmental hierarchy in the planarian nervous system.

Cellular diversity and developmental hierarchy in the planarian nervous system.
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DOI:
10.1016/j.gde.2022.101960
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发表时间:
2022-10
影响因子:
4
通讯作者:
Wang, Bo
Wang, Bo
中科院分区:
生物学2区
文献类型:
--
作者:
Wyss, Livia S.;Bray, Samuel R.;Wang, Bo

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最近单细胞水平的大规模测序研究激增,改变了我们剖析神经系统细胞类型多样性、发育和可塑性的能力。这项工作的大部分主要集中在具有发育早期建立的神经系统的生物体。利用神经元不断重新指定、补充和再生的涡虫扁虫,我们分析了几个现有的单细胞转录组数据集,并观察了神经元身份、分化、成熟和功能的特征,这些特征可能为涡虫神经系统提供了响应包括损伤在内的各种线索所需的高水平适应性。这种分析使我们能够将功能表征所做的许多先前观察结果放在一个通用框架中,并提供额外的假设和预测以在未来的研究中进行测试。
Our ability to dissect cell type diversity, development, and plasticity in the nervous system has been transformed by the recent surge of massive sequencing studies at single-cell level. A large body of this work has focused primarily on organisms with nervous systems established early in development. Using planarian flatworms in which neurons are constantly re-specified, replenished, and regenerated, we analyze several existing single-cell transcriptomic datasets and observe features in neuron identity, differentiation, maturation, and function that may provide the planarian nervous system with high levels of adaptability required to respond to various cues including injury. This analysis allows us to place many prior observations made by functional characterizations in a general framework and provide additional hypothesis and predictions to test in future investigations.
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