Qiu Li-Hua, Lin Qi-de
Department of Obstetrics and Gynecology, Affiliated Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China.
Zhonghua Fu Chan Ke Za Zhi. 2007 Feb;42(2):96-8.
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).
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.
(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).
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.
探讨转录因子GATA-3和T-bet在母胎界面处不明原因复发性自然流产(URSA)发病机制中的作用。
采用原位杂交法检测GATA-3和T-bet mRNA的表达。从20例URSA患者和20例正常孕妇(NP)获取蜕膜。
(1)URSA患者每高倍视野中GATA-3阳性细胞数(25±16)显著低于NP组(38±16)(P<0.05)。(2)URSA患者每高倍视野中T-bet阳性细胞数(59±17)显著高于NP组(46±18)(P<0.05)。(3)蜕膜中表达GATA-3 mRNA的细胞数与T-bet mRNA阳性细胞数显著相关(r=-0.55,P<0.01)。
结果表明,URSA患者蜕膜中T-bet表达上调而GATA-3表达下调。GATA-3/T-bet转录因子失衡可能干扰母胎界面处1型辅助性T细胞(Th1)/2型辅助性T细胞(Th2)的分化并导致URSA。