Synthesis and biological evaluation of unique stereodimers of sinomenine analogues as potential inhibitors of NO production.

Synthesis and biological evaluation of unique stereodimers of sinomenine analogues as potential inhibitors of NO production.
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作为 NO 产生潜在抑制剂的独特青藤碱类似物立体二聚体的合成和生物学评价。

DOI:
10.1016/j.bmc.2011.04.006
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发表时间:
2011-05
影响因子:
3.5
通讯作者:
--
中科院分区:
医学3区
文献类型:
--
作者:

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抑制NO的过度产生已被认为是治疗类风湿性关节炎(RA)的潜在手段。为了发现更有效的抑制剂并探索初步的构效关系,设计合成了一系列独特的青藤碱类似物立体二聚体。采用LPS激活的小鼠巨噬细胞RAW264.7法和MTT法分别检测其对NO生成的抑制作用和细胞毒作用。其中化合物1a、2、2a、2b和4对NO的生成有较强的抑制作用,但无明显的细胞毒性。此外,2,2a和2b显著抑制iNOS mRNA的表达。有趣的是,(S)-二聚体显示出比(R)-二聚体更好的生物活性。这些化合物可能成为开发治疗RA的新型治疗药物的主要候选物。
Inhibition of the excessive NO production has been recognized as a potential means for the treatment of rheumatoid arthritis (RA). In order to discover more potent inhibitors and explore the preliminary structure activity relationship, a series of unique stereodimers of sinomenine analogues were designed and synthesized. Their inhibitory activity on NO production and cytotoxicity were evaluated using LPS-activated murine macrophages RAW264.7 assay and MTT method, respectively. Among these compounds,1a,2,2a,2b, and4showed potent inhibitory activity on NO production without obvious cytotoxicity. Furthermore,2,2a, and2bsignificantly suppressed mRNA expression of iNOS. Interestingly, (S)-dimers displayed a better bioactivity than (R)-dimers. These compounds may sever as lead candidates in the development of novel therapeutic drugs for RA treatment.
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发表时间: 1929-06
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