PF-543 has been known as a substance that strongly inhibits SK1. However, it also exhibits antineoplastic activity that is lower than other inhibitors of SK1. In this study, we compared PF-543 and synthesized a newly designed derivative of PF-543 (compound 2) in which two aromatic structures were connected in para-form. The synthesized derivative showed inhibitory effect on SK1, similar to that of PF-543. However, it was more cytotoxic to HT29, AGS, and PC3 cells than PF-543. We also carried out a docking study for SK1 and demonstrated that the synthesized derivative showed interaction with SK1 similar to PF-543. Results obtained from this study suggest that the structure of compound 2 may be well substituted for the structure of PF-543 in terms of biological activity, providing us important structural information for the design of new derivatives of PF-543.
PF-543被认为是一种强烈抑制SK1的物质。然而,它也表现出比其他SK1抑制剂更低的抗肿瘤活性。在这项研究中,我们比较了PF-543并合成了一种新设计的PF-543衍生物(化合物2),其中两个芳香结构连接在对位。合成的衍生物显示出对SK1的抑制作用,类似于PF-543。然而,它对HT29、AGS和PC3细胞的细胞毒性比PF-543更强。我们还对SK1进行了对接研究,并证明合成的衍生物与PF-543类似地与SK1发生相互作用。本研究得到的结果表明,化合物2的结构在生物活性方面可能很好地替代PF-543的结构,为设计新的PF-543衍生物提供了重要的结构信息。