Related Experiment Video
Updated: Nov 10, 2025
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Turbidimetry on Human Washed Platelets: The Effect of the Pannexin1-inhibitor Brilliant Blue FCF on Collagen-induced Aggregation
Published on: April 6, 2017
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Mind the gap: connexins and pannexins in platelet function
Kirk A Taylor1,2, Gemma Little1, Jonathan M Gibbins1
1Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, UK.
Platelets
|April 5, 2021
Summary
Platelets utilize pannexins and connexins for non-vesicular ATP release. These channels, activated by stimuli like mechanical stress, are potential drug targets for arterial thrombosis.
Area of Science:
- Cellular Biology
- Biochemistry
- Pharmacology
Background:
- Connexins form gap junctions, while pannexins function as membrane channels.
- Platelets express pannexin-1 and connexins (Cx37, Cx40, Cx62).
- These channels allow passage of molecules up to 1,000 Daltons.
Purpose of the Study:
- To review the structure and function of platelet pannexin-1 and connexins.
- To explore the gating mechanisms of these channels.
- To discuss their therapeutic potential in arterial thrombosis.
Main Methods:
- Literature review of connexin and pannexin channel function in platelets.
- Analysis of structural and functional data related to platelet channels.
- Exploration of (patho)physiological stimuli regulating channel activity.
Main Results:
- Platelet pannexins and connexins facilitate non-vesicular ATP release.
- Channel activation is modulated by mechanical stimulation and other stimuli.
- These channels represent potential therapeutic targets.
Conclusions:
- Platelet pannexin-1 and connexins play crucial roles in cellular communication and ATP release.
- Understanding their gating mechanisms is key to developing targeted therapies.
- Targeting these channels offers promise for managing arterial thrombosis.
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