Polyunsaturated fatty acids alter the phenotype of human mast cells in vitro

L.W.J. Van Den Elsen, B. Schouten, M. Balvers, F.A. Redegeld, A.D. Kraneveld, E.F. Knol, J. Garssen, L.E.M. Willemsen

Research output: Contribution to journalMeeting AbstractAcademic

Abstract

Objectives and Study: The increased n-6:n-3 fatty acid ratio in Western diets may contribute to the rapid increase in prevalence of allergic diseases. Key effector cells in allergy are mast cells (MC). Methods: The effect of different fatty acids on MC activation was studied. Therefore separate long chain n-6 (arachidonic acid, AA) and n-3 (eicosapentaenoic acid, EPA and docosahexaenoic acid, DHA) polyunsaturated fatty acid (PUFA) incorporation was investigated in human MC lines (LAD2, HMC-1). Next to degranulation and mediator secretion (release of PGD2 and cytokines such as TNF-alpha, IL-4 and IL-13), generation of reactive oxygen species (ROS) and phosphorylation of mitogen-activated protein kinases (MAPK) was examined. Results: Incubation of MC with AA, EPA or DHA for 24 hours increased PUFA content of the cellular membrane. Incubation with PUFA did not reduce IgE-mediated degranulation by LAD2 cells. However, mediator release of ionomycin/PMA stimulated HMC-1 cells was differentially regulated. IL-13 (P
Original languageEnglish
Pages (from-to)12-13
Number of pages2
JournalJournal of Pediatric Gastroenterology and Nutrition
Volume50
DOIs
Publication statusPublished - 1 Jun 2010
EventEuropean Society for Paediatric Gastroenterology, Hepatology and Nutrition Annual Meeting - Istanbul, Turkey
Duration: 9 Jun 201012 Jun 2010

Keywords

  • polyunsaturated fatty acid
  • interleukin 4
  • mitogen activated protein kinase
  • prostaglandin synthase inhibitor
  • fatty acid
  • arachidonic acid
  • icosapentaenoic acid
  • docosahexaenoic acid
  • cytokine
  • reactive oxygen metabolite
  • immunoglobulin E
  • omega 3 fatty acid
  • nutrition
  • in vitro study
  • mast cell
  • gastroenterology
  • human
  • society
  • phenotype
  • secretion (process)
  • allergic disease
  • degranulation
  • phosphorylation
  • prevalence
  • allergy
  • effector cell
  • cell membrane
  • mediator release
  • diet
  • cell activation

Fingerprint

Dive into the research topics of 'Polyunsaturated fatty acids alter the phenotype of human mast cells in vitro'. Together they form a unique fingerprint.

Cite this