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通过输注阿拉伯半乳聚糖和 D-半乳糖阻断肝细胞凝集素对小鼠肝转移的抑制作用。

Inhibition of liver metastasis in mice by blocking hepatocyte lectins with arabinogalactan infusions and D-galactose.

作者信息

Beuth J, Ko H L, Oette K, Pulverer G, Roszkowski K, Uhlenbruck G

出版信息

J Cancer Res Clin Oncol. 1987;113(1):51-5. doi: 10.1007/BF00389966.

Abstract

According to our hypothesis, organ-specific lectins (e.g., the D-galactose-specific hepatic binding protein) play an important role in the organ location of metastatic malignant cells. The rapid clearance and uptake by the liver of tritiated alpha 1-acid-(asialo)glycoprotein from the circulation of Balb/c mice was markedly delayed after preinjection of D-galactose or arabinogalactan. The preinjection (1 h) and regular application (for 3 days after tumor cell inoculation in Balb/c mice) of the receptor blocking agents D-galactose and arabinogalactan prevented the settling of sarcoma L-1 tumor in the liver completely, but did not influence the settling in the lung. Other galactans, dextrans, and phosphate-buffered saline showed no effect. Therefore, when lectins were blocked with competitive-specific glycoconjugates, colonization was prevented.

摘要

根据我们的假设,器官特异性凝集素(例如,D-半乳糖特异性肝结合蛋白)在转移性恶性细胞的器官定位中起重要作用。在预先注射D-半乳糖或阿拉伯半乳聚糖后,Balb/c小鼠循环中的氚标记α1-酸性(去唾液酸)糖蛋白被肝脏快速清除和摄取的过程明显延迟。受体阻断剂D-半乳糖和阿拉伯半乳聚糖的预先注射(1小时)以及定期应用(在Balb/c小鼠接种肿瘤细胞后3天)完全阻止了L-1肉瘤在肝脏中的定植,但不影响其在肺部的定植。其他半乳聚糖、葡聚糖和磷酸盐缓冲盐水则无此作用。因此,当凝集素被竞争性特异性糖缀合物阻断时,定植就会被阻止。

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Liver lectins: mediators for metastases?肝脏凝集素:转移的介质?
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