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Glutathione S-Transferase π-Activatable O2-(Sulfonylethyl Derived) Diazeniumdiolates Potently Suppress Melanoma in Vitro and in Vivo
Journal of Medicinal Chemistry ( IF 6.8 ) Pub Date : 2018-02-08 00:00:00 , DOI: 10.1021/acs.jmedchem.7b01178
Zhangjian Huang 1 , Jianbing Wu 1 , Yu Zou 1 , Haoliang Yuan 1 , Yinqiu Zhang 1 , Yue Fei 1 , Atul Bhardwaj 2 , Jatinder Kaur 2 , Edward E. Knaus 2 , Yihua Zhang 1
Affiliation  

A group of glutathione S-transferase π (GSTπ) activatable O2-(sulfonylethyl derived) diazeniumdiolates 512 were designed and synthesized. These compounds could be activated by GSTπ to initiate the β-elimination reaction, liberating an active vinyl sulfone-based GSH derivative and a diazeniumdiolate anion which subsequently releases NO in situ. The most active compound 6 released relatively high levels of NO and inhibited proliferation of melanoma B16 cells, superior to a diazeniumdiolate-based anticancer agent JS-K (1). Importantly, 6 had 8-fold less inhibitory activity against normal epithelial JB6 Cl 30-7b cells. The inhibitory activity of 6 could be diminished by an NO scavenger or GSTπ inhibitor. Furthermore, 6 induced nitration of mitochondrial tyrosine in B16 cells and inoculated B16 tumors in mice, which might be responsible for oxidation of protein leading to tumor suppression. Finally, 6 significantly retarded the B16 cells growth in a mouse xenograft model. These findings suggest that 6 may have a potential to treat melanoma.

中文翻译:

谷胱甘肽S转移酶π可活化的O 2-(磺酰基乙基衍生)二醇二氮烯鎓在体内和体外有效抑制黑色素瘤。

A组谷胱甘肽š转移酶π(GSTπ)活化Ö 2 - (sulfonylethyl派生)二醇二氮烯5 - 12设计并合成。这些化合物可被GSTπ活化以引发β-消除反应,释放出活性的乙烯基砜基GSH衍生物和二醇二氮烯二酸酯阴离子,后者随后就地释放NO。活性最高的化合物6释放出相对较高的NO含量,并抑制了黑色素瘤B16细胞的增殖,优于基于二醇二氮烯鎓的抗癌剂JS-K(1)。重要的是,6对正常上皮JB6 Cl 30-7b细胞的抑制活性要低8倍。的抑制活性NO清除剂或GSTπ抑制剂可以减少6。此外,6诱导线粒体酪氨酸在B16细胞中硝化并在小鼠中接种B16肿瘤,这可能是导致蛋白质氧化导致肿瘤抑制的原因。最后,在小鼠异种移植模型中,有6种显着抑制了B16细胞的生长。这些发现表明6可能具有治疗黑色素瘤的潜力。
更新日期:2018-02-08
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