Neuropilins guide preganglionic sympathetic axons and chromaffin cell precursors to establish the adrenal medulla.

Neuropilins guide preganglionic sympathetic axons and chromaffin cell precursors to establish the adrenal medulla.
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DOI:
10.1242/dev.162552
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发表时间:
2018-11-02
期刊:
Development (Cambridge, England)
影响因子:
--
通讯作者:
Schwarz Q
Schwarz Q
中科院分区:
其他
文献类型:
--
作者:
Lumb R;Tata M;Xu X;Joyce A;Marchant C;Harvey N;Ruhrberg C;Schwarz Q

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The adrenal medulla is composed of neuroendocrine chromaffin cells that secrete adrenaline into the systemic circulation to maintain physiological homeostasis and enable the autonomic stress response. How chromaffin cell precursors colonise the adrenal medulla and how they become connected to central nervous system-derived preganglionic sympathetic neurons remain largely unknown. By combining lineage tracing, gene expression studies, genetic ablation and the analysis of mouse mutants, we demonstrate that preganglionic axons direct chromaffin cell precursors into the adrenal primordia. We further show that preganglionic axons and chromaffin cell precursors require class 3 semaphorin (SEMA3) signalling through neuropilins (NRP) to target the adrenal medulla. Thus, SEMA3 proteins serve as guidance cues to control formation of the adrenal neuroendocrine system by establishing appropriate connections between preganglionic neurons and adrenal chromaffin cells that regulate the autonomic stress response. Summary: A new role is revealed for semaphorin/neuropilin signalling in guiding preganglionic sympathetic axons and chromaffin cell precursors into the adrenal primordia, ensuring correct regulation of the autonomic stress response.
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