Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/105342
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Type: Journal article
Title: Regulatory B cells in pregnancy: lessons from autoimmunity, graft tolerance, and cancer
Author: Guzman-Genuino, R.
Diener, K.
Citation: Frontiers in Immunology, 2017; 8(FEB):172-1-172-13
Publisher: Frontiers Media
Issue Date: 2017
ISSN: 1664-3224
1664-3224
Statement of
Responsibility: 
Ruth Marian Guzman-Genuino and Kerrilyn R. Diener
Abstract: The success of pregnancy is contingent on the maternal immune system recognizing and accommodating a growing semi-allogeneic fetus. Specialized subsets of lymphocytes capable of negative regulation are fundamental in this process, and include the regulatory T cells (Tregs) and potentially, regulatory B cells (Bregs). Most of our current understanding of the immune regulatory role of Bregs comes from studies in the fields of autoimmunity, transplantation tolerance, and cancer biology. Bregs control autoimmune diseases and can elicit graft tolerance by inhibiting the differentiation of effector T cells and dendritic cells (DCs), and activating Tregs. Furthermore, in cancer, Bregs are hijacked by neoplastic cells to promote tumorigenesis. Pregnancy therefore represents a condition that reconciles these fields-mechanisms must be in place to ensure maternal immunological tolerance throughout gravidity to allow the semi-allogeneic fetus to grow within. Thus, the mechanisms underlying Breg activities in autoimmune diseases, transplantation tolerance, and cancer may take place during pregnancy as well. In this review, we discuss the potential role of Bregs as guardians of pregnancy and propose an endocrine-modulated feedback loop highlighting the Breg-Treg-tolerogenic DC interface essential for the induction of maternal immune tolerance.
Keywords: autoimmunity
cancer
estrogen
pregnancy
progesterone
regulatory B cells
regulatory T cells
tolerance
Rights: Copyright: © 2017 Guzman-Genuino and Diener. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
DOI: 10.3389/fimmu.2017.00172
Grant ID: http://purl.org/au-research/grants/nhmrc/1020984
http://purl.org/au-research/grants/nhmrc/1012386
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