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Curr Opin Pediatr. 2014 Jun;26(3):377-82. doi: 10.1097/MOP.0000000000000087.

Maternal-fetal cellular trafficking: clinical implications and consequences.

Author information

1
Eli and Edythe Broad Center of Regeneration Medicine and the Department of Surgery, University of California San Francisco, San Francisco, California, USA.

Abstract

PURPOSE OF REVIEW:

Maternal-fetal cellular trafficking (MFCT) is the bidirectional passage of cells between mother and fetus during pregnancy. This results in the presence of fetal cells in the maternal circulation, known as fetal microchimerism, and maternal cells in the fetal circulation, known as maternal microchimerism. The biologic role of this transplacental cellular trafficking during pregnancy is not known, although it has been implicated in development of the fetal immune system, tolerance mechanisms during pregnancy, tissue repair in autoimmune disease and cancer, and immune surveillance.

RECENT FINDINGS:

Clinical utility of MFCT has been identified in prenatal testing for aneuploidies and prediction of pregnancy complications. Additionally, this transplacental passage of cells has been implicated in the delicate balance between immunologic priming and tolerance, which can influence the occurrence of autoimmune disease and transplantation outcomes. Ongoing studies are evaluating the utility of microchimerism in predicting the risk of graft rejection in transplantation.

SUMMARY:

In this review, we will discuss the clinical implications of MFCT in pregnancy, fetal surgery, autoimmune disease, transplantation, and cancer.

PMID:
24759226
PMCID:
PMC4079801
DOI:
10.1097/MOP.0000000000000087
[Indexed for MEDLINE]
Free PMC Article
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