Alpha-linolenic acid inhibits IgE-mediated anaphylaxis by inhibiting Lyn kinase and suppressing mast cell activation

Copyright © 2021 Elsevier B.V. All rights reserved..

Excessive reactions to allergens can induce systemic, life-threatening physiological dysfunction (anaphylaxis) in humans. The surface of mast cells expresses high-affinity IgE receptors that play a vital role during anaphylaxis. Alpha-linolenic acid (ALA) is an essential non-toxic fatty acid in humans. Since it has been reported having potential to regulate pro-inflammatory reactions, we postulated that ALA could inhibit anaphylaxis by down-regulating Lyn kinase phosphorylation. We found that local and systematic inflammation induced by albumin from chicken egg white (OVA) were attenuated by ALA in vivo. Furthermore, ALA inhibited IgE-mediated Ca2+ mobilization, degranulation, and cytokine release in Laboratory of Allergic Disease 2 (LAD2) cells. The western blot results showed that ALA down-regulate the FcεRI/Lyn/Syk signaling pathway by suppressing Lyn kinase activity. Therefore, ALA could serve as a therapeutic drug candidate for preventing IgE-mediated anaphylaxis.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:103

Enthalten in:

International immunopharmacology - 103(2022) vom: 07. Feb., Seite 108449

Sprache:

Englisch

Beteiligte Personen:

Wang, Yuejin [VerfasserIn]
Ding, Yuanyuan [VerfasserIn]
Li, Chaomei [VerfasserIn]
Gao, Jiapan [VerfasserIn]
Wang, Xiaodong [VerfasserIn]
An, Hongli [VerfasserIn]

Links:

Volltext

Themen:

0RBV727H71
37341-29-0
ALA
Allergens
Alpha-Linolenic Acid
Anaphylaxis
EC 2.7.10.2
FcεRI
IgE
Immunoglobulin E
Journal Article
Lyn kinase
Mast cells
Protein Kinase Inhibitors
Receptors, IgE
Src-Family Kinases
Syk Kinase

Anmerkungen:

Date Completed 24.03.2022

Date Revised 24.03.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.intimp.2021.108449

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM334655161