Document Detail

To B or not to B cells-mediate a healthy start to life.
MedLine Citation:
PMID:  23286939     Owner:  NLM     Status:  MEDLINE    
Maternal immune responses during pregnancy are critical in programming the future health of a newborn. The maternal immune system is required to accommodate fetal immune tolerance as well as to provide a protective defence against infections for the immunocompromised mother and her baby during gestation and lactation. Natural immunity and antibody production by maternal B cells play a significant role in providing such immunoprotection. However, aberrations in the B cell compartment as a consequence of maternal autoimmunity can pose serious risks to both the mother and her baby. Despite their potential implication in shaping pregnancy outcomes, the role of B cells in human pregnancy has been poorly studied. This review focuses on the role of B cells and the implications of B cell depletion therapy in pregnancy. It highlights the evidence of an association between aberrant B cell compartment and obstetric conditions. It also alludes to the potential mechanisms that amplify these B cell aberrances and thereby contribute to exacerbation of some maternal autoimmune conditions and poor neonatal outcomes. Clinical and experimental evidence suggests strongly that maternal autoantibodies contribute directly to the pathologies of obstetric and neonatal conditions that have significant implications for the lifelong health of a newborn. The evidence for clinical benefit and safety of B cell depletion therapies in pregnancy is reviewed, and an argument is mounted for further clinical evaluation of B cell-targeted therapies in high-risk pregnancy, with an emphasis on improving neonatal outcomes and prevention of neonatal conditions such as congenital heart block and fetal/neonatal alloimmune thrombocytopenia.
T G Nguyen; C M Ward; J M Morris
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Clinical and experimental immunology     Volume:  171     ISSN:  1365-2249     ISO Abbreviation:  Clin. Exp. Immunol.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-04     Completed Date:  2013-03-12     Revised Date:  2014-02-04    
Medline Journal Info:
Nlm Unique ID:  0057202     Medline TA:  Clin Exp Immunol     Country:  England    
Other Details:
Languages:  eng     Pagination:  124-34     Citation Subset:  IM    
Copyright Information:
© 2012 British Society for Immunology.
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MeSH Terms
Antibody Formation
Autoantibodies / immunology
B-Lymphocytes / immunology*
Heart Block / congenital*,  immunology,  therapy
Immune Tolerance
Immunity, Innate
Immunity, Maternally-Acquired
Infant, Newborn
Infection / immunology*,  therapy
Lymphocyte Depletion
Pregnancy Complications / immunology*,  therapy
Thrombocytopenia, Neonatal Alloimmune / immunology*,  therapy
Reg. No./Substance:

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