92-kD type IV collagenase mediates invasion of human cytotrophoblasts.

92-kD type IV collagenase mediates invasion of human cytotrophoblasts.
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DOI:
10.1083/jcb.113.2.437
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发表时间:
1991-04
期刊:
The Journal of cell biology
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:
Librach CL;Werb Z;Fitzgerald ML;Chiu K;Corwin NM;Esteves RA;Grobelny D;Galardy R;Damsky CH;Fisher SJ

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胚胎和母体组织之间的特殊相互作用是哺乳动物发育所特有的。这种相互作用从最初分化的胚胎细胞(滋养层细胞)侵入子宫开始,最终形成胎盘。细胞滋养细胞的短暂肿瘤样行为,在妊娠早期达到顶峰,是受发育调节的。同样,在培养中,只有妊娠早期的人细胞滋养细胞侵入基底膜样底物。这些侵入细胞既能合成金属蛋白酶,也能合成尿激酶型纤溶酶原激活物。金属蛋白酶抑制剂和92-kD型IV型胶原降解金属蛋白酶特异性的功能干扰抗体完全抑制细胞滋养细胞的侵袭,而纤溶酶原激活剂系统抑制剂仅具有部分(20-40%)的抑制作用。我们得出结论,92-kD IV型胶原酶对细胞滋养细胞侵袭至关重要。
The specialized interaction between embryonic and maternal tissues is unique to mammalian development. This interaction begins with invasion of the uterus by the first differentiated embryonic cells, the trophoblasts, and culminates in formation of the placenta. The transient tumor-like behavior of cytotrophoblasts, which peaks early in pregnancy, is developmentally regulated. Likewise, in culture only early-gestation human cytotrophoblasts invade a basement membrane-like substrate. These invasive cells synthesize both metalloproteinases and urokinase-type plasminogen activator. Metalloproteinase inhibitors and a function-perturbing antibody specific for the 92-kD type IV collagen- degrading metalloproteinase completely inhibited cytotrophoblast invasion, whereas inhibitors of the plasminogen activator system had only a partial (20-40%) inhibitory effect. We conclude that the 92-kD type IV collagenase is critical for cytotrophoblast invasion.
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