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Altered Th17/Treg Ratio in Recurrent Miscarriage After Treatment With Paternal Lymphocytes and Vitamin D3: A Doubleblind Placebo-Controlled Study Pubmed



Rafiee M1 ; Gharagozloo M1 ; Ghahiri A2 ; Mehrabian F2 ; Maracy MR3 ; Kouhpayeh S1 ; Pieper IL4 ; Rezaei A1
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Authors Affiliations
  1. 1. Department of Immunology, School of Medicine, Al-Zahra University Hospital, Iran
  2. 2. Department of Gynecology and Obstetrics, Al-Zahra University Hospital, Iran
  3. 3. Department of Community Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Institute of Life Science, College of Medicine, Swansea University, Swansea, United Kingdom

Source: Iranian Journal of Immunology Published:2015


Abstract

Background: Recurrent miscarriage (RM) affects 2-5% of pregnant women. Paternal lymphocyte immunotherapy is a common treatment for RM patients but the outcome has not been consistent. Therefore, combined therapy with other immunosuppressive drugs such as 1a, 25-dihydroxy-vitamin-D3 (vitamin D3) may improve the outcome. Objectives: To investigate the effect of vitamin D3 on the balance of two essential T cells subsets, T helper (Th) 17 and T regulatory (Treg) cells, which contribute to the immune tolerance during pregnancy. Methods: The expression levels of CD4 and forkhead box protein 3 (FOXP3) in Treg cells, and the expression levels of CD4 and IL17 in Th17 cells, were evaluated pre-and 3 months post-immunotherapy in RM patients treated with a combination of paternal lymphocytes and vitamin D3 compared with RM patients receiving lymphocyte immunotherapy alone. Results: Vitamin D3 therapy decreased the frequency of Th17 cells in addition to reducing the Th17/Treg ratio in peripheral blood of RM patients compared with the control group (p<0.05). Conclusion: Considering that RM patients have a higher Th17/Treg ratio in peripheral blood, vitamin D3 may be a candidate therapeutic approach in this disease. © 2015, Shiraz University of Medical Sciences. All rights reserved.
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