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Priming dendritic cells for Th2 polarization: lessons learned from helminths and implications for metabolic disorders

By Leonie eHussaarts, Maria eYazdanbakhsh and Bruno eGuigas and Bruno eGuigas

Abstract

Nearly one quarter of the world’s population is infected with helminth parasites. A common feature of helminth infections is the manifestation of a type 2 immune response, characterized by T helper 2 (Th2) cells that mediate anti-helminth immunity. In addition, recent literature described a close association between type 2 immune responses and wound repair, suggesting that a Th2 response may concurrently mediate repair of parasite-induced damage. The molecular mechanisms that govern Th2 responses are poorly understood, although it is clear that dendritic cells (DCs), which are the most efficient antigen-presenting cells in the immune system, play a central role. Here, we review the molecular mechanisms by which DCs polarize Th2 cells, examining both helminth antigens and helminth-mediated tissue damage as Th2-inducing triggers. Finally, we discuss the implication of these findings in the context of metabolic disorders, as recent literature indicates that various aspects of the Th2-associated inflammatory response contribute to metabolic homeostasis

Topics: Antigen-Presenting Cells, Dendritic Cells, Insulin Resistance, Metabolic Diseases, Obesity, Th2 Cells, Immunologic diseases. Allergy, RC581-607
Publisher: Frontiers Media S.A.
Year: 2014
DOI identifier: 10.3389/fimmu.2014.00499
OAI identifier: oai:doaj.org/article:7b8b6690b36c4e7890350a82fcfd68b2
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