Continuum modeling for neuronal lamination during cerebral morphogenesis considering cell migration and tissue growth

Continuum modeling for neuronal lamination during cerebral morphogenesis considering cell migration and tissue growth
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考虑细胞迁移和组织生长的大脑形态发生过程中神经元分层的连续体模型

DOI:
10.1080/10255842.2020.1852554
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发表时间:
2020
影响因子:
1.6
通讯作者:
Taiji Adachi
Taiji Adachi
中科院分区:
工程技术4区
文献类型:
--
作者:
Hironori Takeda;Yoshitaka Kameo;Taiji Adachi

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在大脑形态发生过程中,新生神经元必须在已积累的神经元中迁移。这种神经元迁移受信号分子的生化调节,并受组织变形的机械影响。为了理解神经元层压机制,我们构建了神经元在生长的可变形组织中迁移的连续模型。考虑到信号分子促进的迁移和神经元积累诱导的组织生长,我们进行了数值分析。结果表明,促进迁移和组织生长所保证的空间对神经元层压至关重要。该模型可以描述神经元层压的力学和生化耦合机制。
For neuronal lamination during cerebral morphogenesis, later-born neurons must migrate through already-accumulated neurons. This neuronal migration is biochemically regulated by signaling molecules and mechanically affected by tissue deformation. To understand the neuronal lamination mechanisms, we constructed a continuum model of neuronal migration in a growing deformable tissue. We performed numerical analyses considering the migration promoted by signaling molecules and the tissue growth induced by neuron accumulation. The results suggest that the promoted migration and the space ensured by tissue growth are essential for neuronal lamination. The proposed model can describe the coupling of mechanical and biochemical mechanisms for neuronal lamination.
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