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Alginate oligosaccharide attenuates α2,6-sialylation modification to inhibit prostate cancer cell growth via the Hippo/YAP pathway.
Cell Death & Disease ( IF 8.1 ) Pub Date : 2019-05-10 , DOI: 10.1038/s41419-019-1560-y
Yang Han 1 , Lin Zhang 1 , Xiao Yu 2 , Shidan Wang 1 , Chunyan Xu 1 , Heng Yin 3 , Shujing Wang 1
Affiliation  

Chitosan oligosaccharides have been reported to inhibit various tumors. However, the water-soluble marine plant oligosaccharide alginate oligosaccharide (AOS) has only rarely been reported to have anti-cancer effects. Moreover, the inhibitory effect of AOS on prostate cancer and the underlying molecular mechanism remain unknown. This study shows that AOS inhibited cell growth, which was consistent with the attenuation of α2,6-sialylation modification. Furthermore, AOS inhibited ST6Gal-1 promoter activity and thus affected transcriptional processes. In addition, AOS could activate the Hippo/YAP pathway and block the recruitment of both the coactivator YAP and c-Jun. Furthermore, YAP interacted with the transcription factor c-Jun and regulated the transcriptional activity of the downstream target ST6Gal-1 gene. Consistent with in vitro data, AOS suppressed the tumorigenicity of prostate cancer cells via the Hippo/YAP pathway in vivo. In summary, these data indicate that AOS slows the proliferation of prostate cancer and provides a basis for the healthy function of kelp in traditional cognition.

中文翻译:

海藻酸寡糖通过 Hippo/YAP 通路减弱 α2,6-唾液酸化修饰以抑制前列腺癌细胞生长。

据报道,壳聚糖寡糖可抑制各种肿瘤。然而,水溶性海洋植物低聚糖海藻酸低聚糖(AOS)很少被报道具有抗癌作用。此外,AOS 对前列腺癌的抑制作用及其潜在的分子机制仍然未知。该研究表明 AOS 抑制细胞生长,这与 α2,6-唾液酸化修饰的减弱一致。此外,AOS 抑制 ST6Gal-1 启动子活性,从而影响转录过程。此外,AOS 可以激活 Hippo/YAP 通路并阻止共激活因子 YAP 和 c-Jun 的募集。此外,YAP 与转录因子 c-Jun 相互作用并调节下游靶标 ST6Gal-1 基因的转录活性。与体外数据一致,AOS 在体内通过 Hippo/YAP 通路抑制前列腺癌细胞的致瘤性。综上所述,这些数据表明AOS减缓了前列腺癌的增殖,为海带在传统认知中的健康功能提供了基础。
更新日期:2019-05-16
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