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视网膜神经节细胞的迁移和存活需要激酶LKB1。

Retinal ganglion cell migration and viability requires the kinase LKB1.

作者信息

Mackin Robert D, Bhalla Ritika V, Akhanov Viktor, Abdulwahab Qudrat T, Burger Courtney A, Samuel Melanie A

机构信息

Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA.

Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital , Houston, TX, USA.

出版信息

J Cell Biol. 2025 Jul 7;224(7). doi: 10.1083/jcb.202410023. Epub 2025 Jun 11.

Abstract

The arrangement of neurons into ordered layers underlies circuit function in many nervous system regions. This is particularly true in the mammalian retina. Here, fate-committed retinal ganglion cells (RGCs) migrate from the apical to the inner retina, where they form connections that enable vision. The mechanisms that permit ganglion cell migration and whether distinct ganglion cell types use different migration modes are unknown. We show that the serine/threonine kinase LKB1 regulates ganglion cell migration and nuclear positioning. In the absence of LKB1, many ganglion cells remain in the apical retina. Misplaced cells show modified morphologies and display altered cytoskeletal proteins. Examination of RGC types revealed that LKB1 is specifically required to promote F-type RGC (F-RGC) migration. The failure of F-RGCs to migrate results in a significant F-RGC loss via increased cell death and microglia engulfment. Together, these results identify molecular determinates of ganglion cell migration and indicate that different ganglion cell types can use distinct programs to ensure their localization.

摘要

神经元排列成有序的层次是许多神经系统区域回路功能的基础。在哺乳动物视网膜中尤其如此。在这里,命运已确定的视网膜神经节细胞(RGCs)从视网膜顶端迁移到视网膜内层,在那里它们形成使视觉成为可能的连接。允许神经节细胞迁移的机制以及不同类型的神经节细胞是否使用不同的迁移模式尚不清楚。我们发现丝氨酸/苏氨酸激酶LKB1调节神经节细胞的迁移和细胞核定位。在没有LKB1的情况下,许多神经节细胞仍留在视网膜顶端。位置错误的细胞表现出形态改变,并显示细胞骨架蛋白发生变化。对RGC类型的检查表明,LKB1是促进F型RGC(F-RGC)迁移所特别需要的。F-RGC迁移失败会导致通过细胞死亡增加和小胶质细胞吞噬而使F-RGC显著减少。总之,这些结果确定了神经节细胞迁移的分子决定因素,并表明不同类型的神经节细胞可以使用不同的程序来确保它们的定位。

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本文引用的文献

1
Comprehensive single-cell atlas of the mouse retina.
iScience. 2024 May 8;27(6):109916. doi: 10.1016/j.isci.2024.109916. eCollection 2024 Jun 21.
2
Controlling donor and newborn neuron migration and maturation in the eye through microenvironment engineering.
Proc Natl Acad Sci U S A. 2023 Nov 14;120(46):e2302089120. doi: 10.1073/pnas.2302089120. Epub 2023 Nov 6.
3
Cell-type specification in the retina: Recent discoveries from transcriptomic approaches.
Curr Opin Neurobiol. 2023 Aug;81:102752. doi: 10.1016/j.conb.2023.102752. Epub 2023 Jul 25.
4
Neuronal signal-regulatory protein alpha drives microglial phagocytosis by limiting microglial interaction with CD47 in the retina.
Immunity. 2022 Dec 13;55(12):2318-2335.e7. doi: 10.1016/j.immuni.2022.10.018. Epub 2022 Nov 14.
5
Unified classification of mouse retinal ganglion cells using function, morphology, and gene expression.
Cell Rep. 2022 Jul 12;40(2):111040. doi: 10.1016/j.celrep.2022.111040.
7
Transplantation of miPSC/mESC-derived retinal ganglion cells into healthy and glaucomatous retinas.
Mol Ther Methods Clin Dev. 2021 Mar 10;21:180-198. doi: 10.1016/j.omtm.2021.03.004. eCollection 2021 Jun 11.
8
LKB1 and AMPK instruct cone nuclear position to modify visual function.
Cell Rep. 2021 Feb 2;34(5):108698. doi: 10.1016/j.celrep.2021.108698.
10
Microglia in the developing retina couple phagocytosis with the progression of apoptosis via P2RY12 signaling.
Dev Dyn. 2020 Jun;249(6):723-740. doi: 10.1002/dvdy.163. Epub 2020 Feb 27.

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