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Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs01:25

Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs

Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
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Membrane Domains01:18

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Related Experiment Video

Updated: May 23, 2026

Isolation of Peritoneum-derived Mast Cells and Their Functional Characterization with Ca2+-imaging and Degranulation Assays
11:31

Isolation of Peritoneum-derived Mast Cells and Their Functional Characterization with Ca2+-imaging and Degranulation Assays

Published on: July 4, 2018

Polyunsaturated fatty acid supplements modulate mast cell membrane microdomain composition.

Shereen Basiouni1, Katja Stöckel, Herbert Fuhrmann

  • 1Institute of Physiological Chemistry, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, Germany.

Cellular Immunology
|April 11, 2012
PubMed
Summary

Polyunsaturated fatty acids (PUFA) alter lipid composition in mast cell membrane rafts and non-raft domains. This suggests PUFA influence mast cell function through changes in membrane microdomains.

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Last Updated: May 23, 2026

Isolation of Peritoneum-derived Mast Cells and Their Functional Characterization with Ca2+-imaging and Degranulation Assays
11:31

Isolation of Peritoneum-derived Mast Cells and Their Functional Characterization with Ca2+-imaging and Degranulation Assays

Published on: July 4, 2018

Analyzing the Functions of Mast Cells In Vivo Using 'Mast Cell Knock-in' Mice
09:07

Analyzing the Functions of Mast Cells In Vivo Using 'Mast Cell Knock-in' Mice

Published on: May 27, 2015

Area of Science:

  • Cell Biology
  • Biochemistry
  • Immunology

Background:

  • Lipid rafts are crucial membrane microdomains involved in cell signaling and function.
  • Mast cells play key roles in allergic responses and inflammation.
  • Understanding mast cell membrane composition is vital for therapeutic development.

Purpose of the Study:

  • To investigate the impact of n-3 and n-6 polyunsaturated fatty acids (PUFA) on lipid raft composition in a canine mastocytoma cell line (C2).
  • To compare the effects of PUFA supplementation on raft versus non-raft membrane domains.

Main Methods:

  • Detergent-free isolation of lipid rafts from C2 cell plasma membranes.
  • Supplementation of C2 cells with specific n-3 and n-6 PUFAs (α-linolenic acid, eicosapentaenoic acid, docosahexaenoic acid, linoleic acid, arachidonic acid).
  • Analysis of fatty acid, cholesterol, and protein content in isolated rafts and non-raft membranes.

Main Results:

  • Enrichment with specific PUFAs increased their content in both lipid rafts and non-raft membranes.
  • Cholesterol and protein content remained unaffected by PUFA supplementation.
  • Demonstrated PUFA-specific alterations in membrane microdomain lipid profiles.

Conclusions:

  • Polyunsaturated fatty acids (PUFA) modulate the lipid composition of mast cell membrane microdomains.
  • These alterations in lipid rafts and non-raft domains may influence mast cell physiological properties and function.
  • Findings provide insights into the role of dietary fatty acids in mast cell biology.