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  • Title: [Study on the expression of transcription factor GATA-3 and T-bet mRNA in decidua of women with unexplained recurrent spontaneous abortion].
    Author: Qiu LH, Lin QD.
    Journal: Zhonghua Fu Chan Ke Za Zhi; 2007 Feb; 42(2):96-8. PubMed ID: 17442182.
    Abstract:
    OBJECTIVE: To investigate the roles of transcription factor GATA-3 and T-bet at the fetal-maternal interface in the pathogenesis of unexplained recurrent spontaneous abortion (URSA). METHODS: The expression of GATA-3 and T-bet mRNA was examined by in situ hybridization. Decidua was obtained from 20 women with URSA and 20 normal pregnant (NP) women. RESULTS: (1) The number of GATA-3 positive cells per high power field in women with URSA (25 +/- 16) was significantly lower than those in NP women (38 +/- 16) (P < 0.05). (2) The number of T-bet positive cells per high power field in women with URSA (59 +/- 17) was significantly higher than those in NP women (46 +/- 18) (P < 0.05). (3) Numbers of cells expressing GATA-3 mRNA correlated significantly with T-bet mRNA positive cell numbers in decidua (r = -0.55, P < 0.01). CONCLUSIONS: The results demonstrate that upregulated expression of T-bet and downregulated expression of GATA-3 are found in the decidua of women with URSA. Imbalance of GATA-3/T-bet transcription factors might interfere with type 1 helper T cell (Th1)/type 2 helper T cell (Th2) differentiation at the fetal-maternal interface and cause URSA.
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