期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/ijms22063176
关键词
primary cilium; ciliogenesis; neural circuit formation; neural crest cells; DRG; boundary cap cells; sympathetic ganglia; PNS
资金
- Swiss National Science Foundation
The primary cilium plays a crucial role in vertebrate embryonic development, serving as a signaling hub in neural circuit formation. The presence of primary cilia in neural crest cells and their derivatives during key stages of peripheral nervous system formation suggests a potential role in this process. Further investigation is warranted to explore the specific functions of primary cilia in peripheral nervous system development.
The primary cilium plays a pivotal role during the embryonic development of vertebrates. It acts as a somatic signaling hub for specific pathways, such as Sonic Hedgehog signaling. In humans, mutations in genes that cause dysregulation of ciliogenesis or ciliary function lead to severe developmental disorders called ciliopathies. Beyond its role in early morphogenesis, growing evidence points towards an essential function of the primary cilium in neural circuit formation in the central nervous system. However, very little is known about a potential role in the formation of the peripheral nervous system. Here, we investigate the presence of the primary cilium in neural crest cells and their derivatives in the trunk of developing chicken embryos in vivo. We found that neural crest cells, sensory neurons, and boundary cap cells all bear a primary cilium during key stages of early peripheral nervous system formation. Moreover, we describe differences in the ciliation of neuronal cultures of different populations from the peripheral and central nervous systems. Our results offer a framework for further in vivo and in vitro investigations on specific roles that the primary cilium might play during peripheral nervous system formation.
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