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Updated: Jun 26, 2026
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Measurement of Cellular Chemotaxis with ECIS/Taxis
Published on: April 1, 2012
[Eosinophil chemotaxis assay using novel device EZ-TAXIScan]
Hikari Kato1, Shigeharu Ueki, Wataru Ito
1Department of Clinical and Laboratory Medicine, Akita University School of Medicine.
Arerugi = [Allergy]
|January 27, 2009
Summary
EZ-TAXIScan enables real-time analysis of eosinophil chemotaxis, revealing rapid responses to certain chemoattractants. This novel method offers a faster alternative to traditional techniques for studying allergic inflammation.
Area of Science:
- Immunology
- Cell Biology
Context:
- Eosinophils are key cells in allergic inflammation, like asthma.
- Studying eosinophil migration (chemotaxis) is crucial for understanding these diseases.
- Conventional methods like the Boyden chamber have limitations, including cell quantity and lack of real-time data.
Purpose:
- To investigate real-time eosinophil chemotaxis using a novel microchannel device called EZ-TAXIScan.
- To compare the performance of EZ-TAXIScan with the traditional Boyden chamber method.
Summary:
- EZ-TAXIScan demonstrated rapid (minutes) and fast (20-30 µm/min) eosinophil chemotaxis with platelet-activating factor (PAF) or prostaglandin D2 (PGD2).
- Eosinophils stimulated with eotaxin or RANTES showed slower responses with EZ-TAXIScan (60 min, 15 µm/min).
- The Boyden chamber method showed a delayed response peaking at 20-60 min for all tested chemoattractants.
Impact:
- Confirms the utility of EZ-TAXIScan for studying eosinophil chemotaxis in real-time.
- Highlights differences in chemoattractant response kinetics between EZ-TAXIScan and Boyden chambers.
- Provides a new tool for advancing research in allergic inflammation and asthma.
