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Antagonistic Action of Siah2 and Pard3/JamC to Promote Germinal Zone Exit of Differentiated Cerebellar Granule Neurons by Modulating Ntn1 Signaling Via Dcc

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Journal Res Sq
Date 2024 Oct 14
PMID 39399669
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Abstract

Exiting a germinal zone (GZ) initiates a cascade of events that promote neuronal maturation and circuit assembly. Developing neurons and their progenitors must interpret various niche signals-such as morphogens, guidance molecules, extracellular matrix components, and adhesive cues-to navigate this region. How differentiating neurons integrate and adapt to multiple cell-extrinsic niche cues with their cell-intrinsic machinery in exiting a GZ is unknown. We establish cooperation between cell polarity-regulated adhesion and Netrin-1 (Ntn-1) signaling comprises a coincidence detection circuit repelling maturing neurons from their GZ. In this circuit, the Partitioning defective 3 (Pard3) polarity protein and Junctional adhesion molecule-C (JamC) adhesion protein promote, while the Seven in absentia 2 (Siah2) ubiquitin ligase inhibits, Deleted in colorectal cancer (Dcc) receptor surface recruitment to gate differentiation linked repulsion to GZ Ntn-1. These results demonstrate cell polarity as a central integrator of adhesive- and guidance cues cooperating to spur GZ exit.

References
1.
Hatten M . Central nervous system neuronal migration. Annu Rev Neurosci. 1999; 22:511-39. DOI: 10.1146/annurev.neuro.22.1.511. View

2.
Miesenbock G, De Angelis D, Rothman J . Visualizing secretion and synaptic transmission with pH-sensitive green fluorescent proteins. Nature. 1998; 394(6689):192-5. DOI: 10.1038/28190. View

3.
Kullmann J, Trivedi N, Howell D, Laumonnerie C, Nguyen V, Banerjee S . Oxygen Tension and the VHL-Hif1α Pathway Determine Onset of Neuronal Polarization and Cerebellar Germinal Zone Exit. Neuron. 2020; 106(4):607-623.e5. PMC: 7244394. DOI: 10.1016/j.neuron.2020.02.025. View

4.
Poliak S, Morales D, Croteau L, Krawchuk D, Palmesino E, Morton S . Synergistic integration of Netrin and ephrin axon guidance signals by spinal motor neurons. Elife. 2015; 4. PMC: 4764565. DOI: 10.7554/eLife.10841. View

5.
Ong T, Trivedi N, Wakefield R, Frase S, Solecki D . Siah2 integrates mitogenic and extracellular matrix signals linking neuronal progenitor ciliogenesis with germinal zone occupancy. Nat Commun. 2020; 11(1):5312. PMC: 7576183. DOI: 10.1038/s41467-020-19063-7. View