ARTICLE INFO

Article Type

Original Research

Authors

Roumandeh   N. (1)
Saremi   A.T. (2)
Sanaye Naderi   M. ()
Younesi ‎   B. (4)
Arasteh   J. (5)
Zare ‎   A. (*)






() Sarem Fertility & Infertility Research Center (SAFIR)‎, Sarem Women’s Hospital, Tehran, Iran
(*) ‎“Sarem Fertility & Infertility Research Center (SAFIR)” and “Sarem Cell Research Center (SCRC)” ‎, Shahid Beheshti Medical University, Tehran, Iran
(1) ‎”Sarem Cell Research Center (SCRC), Sarem Women’s Hospital, Tehran” and “Immunology Department‎, Medicine Faculty, Semnan University of Medical Sciences, Semnan‎, Iran
(2) ‎“Sarem Fertility & Infertility Research Center (SAFIR)” and “Sarem Cell Research Center (SCRC)” ‎, Sarem Women’s Hospital, Tehran, Iran
(4) Sarem Women’s Hospital, Tehran, Iran
(5) ‎Biology Department, Basic Sciences Faculty, Central Tehran Branch, Islamic Azad University, Tehran, Iran

Correspondence


Article History

Received:   February  9, 2017
Accepted:   June 27, 2017
ePublished:   August 15, 2018

ABSTRACT

Aims Unexplained recurrent spontaneous abortion (URSA) might be caused by an ‎immunological rejection of fetus due to the immune dysregulation during ‎pregnancy. It is supposed that the balance between Th17 and regulatory T cells ‎‎(Treg) is one of the immune system regulatory mechanisms for pregnancy. The ‎objective of the present study was to evaluate the Treg and Th17 cytokines in the ‎women with URSA compared to healthy women.‎
Materials & Methods This case-control study was carried out on 30 women with a history of three or ‎more URSA (case group) and 28 normal healthy women with at least one ‎successful delivery (control group) in Sarem women hospital (Tehran, Iran). The ‎levels of IL-17, IL-21, IL-10 and TGF-β were measured in the serum samples by ‎ELISA method and compared between two groups. The data were analyzed by ‎Mann-Whitney U test and Spearman's rank correlation coefficient using SPSS 22 ‎software.‎
Findings The level of IL-17 in the case group was significantly higher than the control group ‎‎(p<0.001). Also, the level of TGF-β in the control group was significantly higher ‎than URSA patients (p=0.001). The serum level of IL-17 showed a positive ‎correlation with TGF-β in URSA group (r=0.554; p=0.002). There were no ‎significant differences in IL-21 and IL-10 levels between two groups (p>0.05).‎
Conclusion The level of IL-17 in patients with URSA‎‏ ‏is higher than normal healthy women, ‎however, the concentration of TGF-β in women with URSA is lower than healthy ‎women; these findings show that Th17 immunity and regulatory T cell-mediated ‎immune regulation are involved in the pathogenesis of URSA.‎


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