State Key Laboratory of Microbial Metabolism and School of life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
Sabanci University Nanotechnology Research and Application Center, Orta Mah. Tuzla, 34956, Istanbul, Turkey.
Sci Rep. 2018 Jun 15;8(1):9169. doi: 10.1038/s41598-018-27580-1.
Parkinson's disease (PD) arises as neurodegenerative disorder and characterized by progressive deterioration of motor functions due to forfeiture of dopamine-releasing neurons. During PD, neurons at stake loss their functionality that results into cognition impairment and forgetfulness, commonly called as dementia. Recently, nanoparticles (NPs) have been reported for easy drug delivery through blood-brain barrier (BBB) into the central nervous system (CNS) against the conventional drug delivery systems. However, present study attempted to elucidate the α-synuclein activity, a major factor casing PD, in presence of its inhibitor cerium oxide (CeO) nanoparticle via computational biology approach. A computational analysis was also conducted for the α-synuclein activity with biocompatible metal NPs such as GOLD NPs and SPIONs to scrutinize the efficacy and degree of inhibition induced by the CeO NP. The obtained results concluded that CeO NP fit best in the active site of α-synuclein with good contacts and interaction, and potentially inhibited the PD against L-DOPA drug selected as positive control in the designed PD biochemical pathway. Hence, CeO NP has been purposed as potential inhibitor of α-synuclein and can be employed as nano-drug against the PD.
帕金森病（PD）是一种神经退行性疾病，其特征是由于多巴胺释放神经元丧失，运动功能逐渐恶化。在 PD 中，受影响的神经元丧失了功能，导致认知障碍和健忘，通常称为痴呆。最近，纳米粒子（NPs）已被报道用于通过血脑屏障（BBB）轻松将药物递送至中枢神经系统（CNS），以替代传统的药物递送系统。然而，本研究试图通过计算生物学方法阐明α-突触核蛋白（α-synuclein）的活性，这是导致 PD 的主要因素，同时存在其抑制剂氧化铈（CeO）纳米颗粒。还进行了计算分析，以研究生物相容性金属 NPs（如金纳米颗粒（GOLD NPs）和超顺磁氧化铁纳米颗粒（SPIONs））对α-突触核蛋白活性的影响，以仔细检查 CeO NP 诱导的疗效和抑制程度。所得结果表明，CeO NP 与α-突触核蛋白的活性位点最佳匹配，具有良好的接触和相互作用，并且可能抑制了 L-DOPA 药物选择的 PD，L-DOPA 药物作为设计的 PD 生化途径中的阳性对照。因此，CeO NP 已被提议为α-突触核蛋白的潜在抑制剂，并可作为纳米药物用于治疗 PD。
