The primary cilium gene CPLANE1 is required for peripheral nervous system development.

Area of Science:

• Developmental Neuroscience
• Cell Biology
• Genetics

Background:

• Ciliopathies are neurodevelopmental disorders stemming from primary cilium dysfunction.
• Primary cilia act as crucial signaling hubs in cell communication during development.
• While central nervous system development in ciliopathies is studied, the peripheral nervous system remains less explored.

Purpose of the Study:

• To investigate the role of the ciliopathy gene Cplane1 in peripheral nervous system development.
• To understand how Cplane1 dysfunction affects neural structures beyond the central nervous system.

Main Methods:

• Utilized chicken embryos to study the effects of Cplane1 gene function loss.
• Observed and analyzed the development of peripheral nervous system structures, specifically dorsal root ganglia.

Main Results:

• Loss of Cplane1 function in chicken embryos led to significant defects in dorsal root ganglia.
• Affected dorsal root ganglia exhibited abnormal size and failed symmetrical localization along the spinal cord.
• These findings correlate with observed neural crest cell migration defects in other ciliopathy models.

Conclusions:

• The ciliopathy gene Cplane1 is essential for proper peripheral nervous system development.
• Cplane1 dysfunction contributes to dorsal root ganglia abnormalities, potentially explaining somatosensory deficits in ciliopathy patients.
• This study highlights the importance of primary cilia in peripheral nervous system formation and function.