CYTOTOXIC ANTIBODY AGAINST TROPHOBLAST AND LYMPHOCYTES PRESENT IN PREGNANCY WITH INTRAUTERINE FETAL GROWTH-RETARDATION AND ITS RELATION TO ANTIPHOSPHOLIPID ANTIBODY

被引:40
作者
HASEGAWA, I
TAKAKUWA, K
ADACHI, S
KANAZAWA, K
机构
[1] Department of Obstetrics and Gynecology, Niigata University School of Medicine, Niigata
关键词
D O I
10.1016/0165-0378(90)90031-Z
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
To elucidate immunological mechanisms involved in the genesis of intra-uterine fetal growth retardation (IUGR), an in vitro cytotoxicity assay against normal trophoblast and lymphocytes was performed. The data demonstrated the existence of cytotoxic antibody directed against trophoblast exclusively in the IgG fraction of the sera of 9 out of 15 mothers with IUGR, but in none of the sera from normal pregnant women. This antibody showed differential reactivity patterns that may be indicative of allotypy through other than HLA specificity with T lymphocytes and trophoblast in common. Out of 9 IUGR mothers with this cytotoxic antibody, in 6 cases (66.7%) chronic villitis was evident upon microscopic examination of the placenta, the frequency being significantly higher than that in IUGR mothers without cytotoxicity or in control mothers (P < 0.02). It is suggested that in situ inflammatory change triggered by this antibody might lead to IUGR through chronic villitis. This antibody showed cross-reactivity with anti-negatively charged phospholipid antibody, as confirmed by an absorption experiment, indicating that the trophoblast antigenic stimuli in pregnancy can induce the production of various autoantibodies including anti-phospholipid antibodies. These results are of interest in relation to the pathogenesis of autoimmune diseases. © 1990.
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页码:127 / 139
页数:13
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