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Cell-autonomous action of in radial migration of cortical projection neurons. | LitMetric

Cell-autonomous action of in radial migration of cortical projection neurons.

Front Mol Neurosci

State Key Laboratory of Optometry, Ophthalmology and Vision Science, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, China.

Published: December 2024

AI Article Synopsis

Article Abstract

Neuronal radial migration is a fundamental process for cortical development, the disruption of which causes neurological and psychiatric dysfunctions. SLIT2 plays diverse functions in brain development and is a well-known axon guidance molecule. In this study, we investigated the radial migration of projection neurons in the developing cerebral cortex by knockdown (KD) of in mice. KD of did not interfere with the neurogenesis and fate-determination but led to the accumulation of the transfected cells in the intermediate zone (IZ), suggesting that the expression of is crucial for the radial migration of the cortical neurons. KD of hindered the transition of cells from a multipolar to a bipolar shape, which is necessary for glia-guided locomotion. Interestingly, reducing Slit2 did not affect the migration of neighboring untransfected cells, indicating a cell-autonomous action by SLIT2. In addition, the action of SLIT2 KD was mimicked by a dominant negative mutant of ROBO2, a canonical membrane receptor of SLIT2, supporting that SLIT2 acted locally as a secretory molecule. Our results suggest that SLIT2 is indispensable for the radial migration of cortical neurons through an autocrine signaling mechanism.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11646887PMC
http://dx.doi.org/10.3389/fnmol.2024.1505434DOI Listing

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