Open AccessAltered Frequencies of CD4+ CD25+ Foxp3+ and CD8+ CD25+ Foxp3+ Regulatory T Cells in Pre-eclampsia
Author(s) -
Maryam Zare,
Mehrnoosh Doroudchi,
Behrouz GharesiFard
Publication year - 2019
Publication title -
iranian journal of allergy, asthma and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.357
H-Index - 25
eISSN - 1735-5249
pISSN - 1735-1502
DOI - 10.18502/ijaai.v17i6.618
Subject(s) - foxp3 , il 2 receptor , eclampsia , cd8 , immunology , biology , chemistry , immune system , genetics , pregnancy , t cell
Regulatory T cells are of utmost importance for tolerating the fetus. In some pregnancy complications such as pre-eclampsia, the frequency of CD4+CD25+Foxp3+ regulatory T cells is altered, but there is no consistency regarding the results. Besides, little is known about the frequency of CD8+CD25+Foxp3+ Treg cells in pregnancy complications. Therefore, we aimed to investigate the frequency of both CD4+ and CD8+ regulatory T cells in the peripheral blood of women afflicted by preeclampsia.
Ten non-pregnant, ten healthy pregnant, and ten preeclamptic women participated in this study. Four colors flow cytometry method was used to identify the frequency of the CD4+ and CD8+ regulatory T cells in the peripheral blood.
Results indicated that the frequencies of CD4+CD25+Foxp3+ and CD8+CD25+Foxp3+ cells were significantly lower in preeclamptic women compared to healthy pregnant and non-pregnant ones (p<0.05). A positive correlation was also observed between CD4+ and CD8+ regulatory T cells (R=0.532, p=0.002). Moreover, CD4+ regulatory T cells negatively correlated with systolic and diastolic blood pressures (R=-0.760 and -0.753, respectively; p<0.001). CD8+ regulatory T cells also had a negative correlation with systolic (R=-0.503, p=0.001) and diastolic (R=-0.590, p=0.005) blood pressures.
In conclusion, a reduction in the frequencies of both CD4+ CD25+ Foxp3+ and CD8+CD25+Foxp3+ regulatory T cells might be important in the pathogenesis of pre-eclampsia.