Novel Dithiolane-Based Ligands Combining Sigma and NMDA Receptor Interactions as Potential Neuroprotective Agents
作者:Silvia Franchini、Pasquale Linciano、Giulia Puja、Annalisa Tait、Chiara Borsari、Nunzio Denora、Rosa Maria Iacobazzi、Livio Brasili、Claudia Sorbi
DOI:10.1021/acsmedchemlett.0c00129
日期:2020.5.14
The new compounds exhibited a low nanomolar affinity for sigma-1 and sigma-2 receptors. Five selected compounds were evaluated for their neuroprotective capacity on SH-SY5Y neuroblastoma cell line. They were able to counteract the neurotoxicity induced by rotenone, oligomycin and NMDA. Competition studies with PB212, a S1R antagonist, confirmed the involvement of S1R in neuroprotection from the oxidative
Sigma受体(SRs)被认为是治疗神经退行性疾病的重要靶标。通过结合关键的药效学胺(即苄基哌啶或苄基哌嗪)与新的基于1,3-二硫杂环戊烷的杂环及其生物等排体,设计了一系列新型SRs配体。新化合物对sigma-1和sigma-2受体表现出较低的纳摩尔亲和力。评价了五个选择的化合物对SH-SY5Y神经母细胞瘤细胞系的神经保护能力。它们能够抵消鱼藤酮,寡霉素和NMDA诱导的神经毒性。与S1R拮抗剂PB212的竞争研究证实,S1R参与了鱼藤酮诱导的氧化应激的神经保护。在培养中的皮质神经元上进行的电生理实验突出了该化合物降低NMDA诱发电流的能力,表明该化合物对NMDA受体的变构活性为负。总而言之,这些结果使我们新颖的二硫杂环戊烷衍生物成为对抗神经变性的潜在药物。