Human placental cytotrophoblasts produce the immunosuppressive cytokine interleukin 10.

Human placental cytotrophoblasts produce the immunosuppressive cytokine interleukin 10.
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DOI:
10.1084/jem.184.2.539
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发表时间:
1996-08-01
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Fisher SJ
Fisher SJ
中科院分区:
其他
文献类型:
--
作者:
Roth I;Corry DB;Locksley RM;Abrams JS;Litton MJ;Fisher SJ

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哺乳动物母亲接受作为同种异体移植物的植入胎儿的机制仍然无法解释,但可能是多种因素综合作用的结果。单核细胞滋养层细胞是胎盘的特化胚胎细胞,侵入子宫,起着重要作用。这些细胞表达HLA-G,一种不寻常的主要组织相容性复合物I-B类分子,并分泌细胞因子和妊娠特异性蛋白,可以调节免疫功能。我们研究了细胞滋养层细胞是否分泌白细胞介素10(IL-10),一种在混合淋巴细胞反应中有效抑制同种异体反应的细胞因子。细胞滋养层细胞从怀孕的各个阶段产生IL-10在体外,但无论是胎盘成纤维细胞,也没有绒毛膜癌(恶性滋养层)细胞系这样做。在妊娠的第一、第二和第三个三个月,自发产生的IL-10平均值分别为650、853和992 pg/10(6)个细胞。IL-10分泌下降后的第一个24小时的文化,约10倍,并通过减少信使RNA。IL-10信使RNA在胎盘活检和子宫的一部分,含有侵入性细胞滋养层,表明这种细胞因子也在体内产生。细胞滋养层细胞在体外分泌的IL-10具有生物活性,这是通过其抑制同种异基因混合淋巴细胞反应中干扰素γ产生的能力来确定的。我们的结论是,人类细胞滋养层细胞IL-10可能是一个重要的因素,有助于母体耐受同种异体胎儿。
The mechanism by which the mammalian mother accepts the implanting fetus as an allograft remains unexplained, but is likely to be the result of a combination of factors. Mononuclear cytotrophoblasts, the specialized fetal cells of the placenta that invade the uterus, play an important role. These cells express HLA-G, an unusual major histocompatibility complex class I-B molecule, and secrete cytokines and pregnancy-specific proteins that can regulate immune function. We investigated whether cytotrophoblasts secrete interleukin 10 (IL-10), a cytokine that potently inhibits alloresponses in mixed lymphocyte reactions. Cytotrophoblasts from all stages of pregnancy produced IL-10 in vitro, but neither placental fibroblasts nor choriocarcinoma (malignant trophoblast) cell lines did so. Spontaneous IL-10 production averaged 650, 853, and 992 pg/10(6) cells in the first, second, and third trimesters of pregnancy, respectively. IL-10 secretion dropped approximately 10-fold after the first 24 h of culture, and was paralleled by a decrease in messenger RNA. IL-10 messenger RNA was detected in biopsies of the placenta and the portion of the uterus that contains invasive cytotrophoblasts, suggesting that this cytokine is also produced in vivo. IL-10 secreted by cytotrophoblasts in vitro is bioactive, as determined by its ability to suppress interferon gamma production in an allogeneic mixed lymphocyte reaction. We conclude that human cytotrophoblast IL-10 may be an important factor that contributes to maternal tolerance of the allogeneic fetus.
DOI: 10.1016/s0002-9378(94)70077-x
发表时间: 1994-07-01
影响因子: 9.8
作者:
HEYBORNE, KD;MCGREGOR, JA;ABRAMS, JS
通讯作者: ABRAMS, JS
DOI: 10.1083/jcb.109.2.891
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影响因子: --
作者:
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发表时间: 1989-12-01
期刊: The Journal of experimental medicine
影响因子: --
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DOI: 10.1093/intimm/4.12.1389
发表时间: 1992-12-01
影响因子: 4.4
作者:
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DOI: 10.1016/0002-9378(90)90601-3
发表时间: 1990-11-01
影响因子: 9.8
作者:
KAUMA, S;MATT, D;TURNER, T
通讯作者: TURNER, T