IgE in the human placenta: why there
2010
Rindsjö, E. | Joerink, M. | Papadogiannakis, N. | Scheynius, A.
To cite this article: Rindsjö E, Joerink M, Papadogiannakis N, Scheynius A. IgE in the human placenta: why there? Allergy 2010; 65: 554-560. Immunoglobulin E (IgE) antibodies are key effector molecules in the allergic inflammatory response and are also involved in the protection against extracellular parasites. Allergic symptoms often develop early in life, and the intrauterine environment has been proposed to play an important role in affecting the risk of later allergy development. The placenta constitutes a selective barrier between the maternal and foetal circulation. Recently, we reported that maternal IgE antibodies are present on foetal macrophages in the villous tissue of the human placenta irrespective of maternal allergy status. This review discusses the presence of IgE antibodies in the human placenta and its possible roles in normal and pathologic pregnancy. It also deals with the relationship between placental IgE and development of allergy during childhood. A better understanding of the role of IgE in placenta could give us clues on how to prevent allergy development in the future generations.
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