Chemical inhibition of prometastatic lysyl-tRNA synthetase-laminin receptor interaction.

Chemical inhibition of prometastatic lysyl-tRNA synthetase-laminin receptor interaction.
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化学抑制前抗赖氨酸-TRNA合成酶 - 氯胺酮受体相互作用的化学抑制作用。

DOI:
10.1038/nchembio.1381
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发表时间:
2014-01
影响因子:
14.8
通讯作者:
Kim, Sunghoon
Kim, Sunghoon
中科院分区:
生物学1区
文献类型:
--
作者:
Kim, Dae Gyu;Lee, Jin Young;Kwon, Nam Hoon;Fang, Pengfei;Zhang, Qian;Wang, Jing;Young, Nicolas L.;Guo, Min;Cho, Hye Young;Mushtaq, Ameeq Ul;Jeon, Young Ho;Choi, Jin Woo;Han, Jung Min;Kang, Ho Woong;Joo, Jae Eun;Hur, Youn;Kang, Wonyoung;Yang, Heekyoung;Nam, Do-Hyun;Lee, Mi-Sook;Lee, Jung Weon;Kim, Eun-Sook;Moon, Aree;Kim, Kibom;Kim, Doyeun;Kang, Eun Joo;Moon, Youngji;Rhee, Kyung Hee;Han, Byung Woo;Yang, Jee Sun;Han, Gyoonhee;Yang, Won Suk;Lee, Cheolju;Wang, Ming-Wei;Kim, Sunghoon

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赖氨酰-tRNA 合成酶 (KRS) 是细胞质中的一种蛋白质合成酶,在层粘连蛋白信号后重新定位到质膜,并稳定与癌症转移有关的 67-kDa 层粘连蛋白受体 (67LR);然而,其作为抗转移治疗靶点的潜力尚未被探索。我们发现,与 KRS 结合的小化合物 BC-K-YH16899 会影响 KRS 与 67LR 的相互作用,并在 3 种不同的小鼠模型中抑制转移。该化合物通过两种方式抑制 KRS-67LR 相互作用。首先,直接封杀了KRS和67LR的关联。其次,它抑制了 KRS N 末端延伸的动态运动并减少了 KRS 的膜定位。然而,它并没有影响KRS的催化活性。我们的结果表明,对癌症相关的 KRS-67LR 相互作用进行特异性调节可能提供一种控制转移的方法,同时避免与抑制 KRS 正常功能相关的毒性。
Lysyl-tRNA synthetase (KRS), a protein synthesis enzyme in the cytosol, relocates to the plasma membrane after a laminin signal and stabilizes a 67-kDa laminin receptor (67LR) that is implicated in cancer metastasis; however, its potential as an antimetastatic therapeutic target has not been explored. We found that the small compound BC-K-YH16899, which binds to KRS, impinged on interaction of KRS with 67LR and suppressed metastasis in 3 different mouse models. The compound inhibited KRS–67LR interaction in two ways. First, it directly blocked the association between KRS and 67LR. Second, it suppressed the dynamic movement of the N-terminal extension of KRS and reduced membrane localization of KRS. However, it did not affect the catalytic activity of KRS. Our results suggest that specific modulation of a cancer-related KRS–67LR interaction may offer a way to control metastasis while avoiding the toxicities associated with inhibition of the normal functions of KRS.
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影响因子: --
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