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Related Concept Videos

Microtubules in Signaling01:22

Microtubules in Signaling

The primary cilium, made up of microtubules, acts as antennae on the cell surfaces for relaying external stimuli into the cells. These fine hair-like structures are present, generally one per cell. These are non-motile cilia in a 9+0 microtubules arrangement, where the central pair of microtubules are absent. The primary cilia arise from the basal body embedded in the cell membrane. Intraflagellar transport (IFT) carries requisite proteins from the cytoplasm to the cilium because the primary...

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Using Primary Neurosphere Cultures to Study Primary Cilia
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Methods to Assess Neuronal Primary Cilia Electrochemical Signaling.

Paul G DeCaen1, Louise F Kimura1

  • 1Feinberg School of Medicine, Department of Pharmacology, Northwestern University, Chicago, Illinois, USA.

Journal of Cellular Physiology
|April 14, 2025
PubMed
Summary

Primary cilia are sensory organelles in neurons crucial for brain function. New methods allow real-time study of cilia signaling, aiding understanding of neurological disorders like ciliopathies.

Keywords:
cAMPcalcium sensorelectrophysiologyneuronal ciliopathiesprimary ciliaserotonin receptor type 6

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Last Updated: Jun 19, 2026

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Genetics

Background:

  • Primary cilia are sensory organelles found in neurons, particularly in the hippocampus and cerebellum.
  • Defects in primary cilia genes cause neuronal ciliopathies, leading to neurodevelopmental disorders.
  • Neuronal primary cilia possess unique ion channels and G protein-coupled receptors (GPCRs) involved in synaptic function.

Purpose of the Study:

  • To describe novel methods for studying primary cilia in neurons.
  • To enable real-time assays of signaling pathways within primary cilia.
  • To advance understanding of primary cilia's role in health and ciliopathy.

Main Methods:

  • Electrophysiology techniques tailored for primary cilia.
  • Development and application of cilia-specific fluorescent sensors.
  • Real-time measurement of calcium, cAMP, and channel activity in isolated neurons.

Main Results:

  • Established methods for detailed analysis of primary cilia electrophysiology.
  • Demonstrated use of fluorescent sensors to monitor polycystin channel and GPCR activity.
  • Enabled semi-quantitative, real-time assessment of key signaling pathways in cilia.

Conclusions:

  • The described methods provide powerful tools for studying neuronal primary cilia.
  • These techniques facilitate research into the function of primary cilia and their role in ciliopathies.
  • Enhanced understanding of cilia signaling pathways is critical for developing therapeutic strategies for neurological disorders.