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Protective effect of hydralazine on a cellular model of Parkinson's disease: a possible role of hypoxia-inducible factor (HIF)-1α.
Biochemistry and Cell Biology ( IF 2.4 ) Pub Date : 2020-05-14 , DOI: 10.1139/bcb-2019-0117
Mehrnaz Mehrabani 1 , Mohammad Hadi Nematollahi 2, 3 , Mojde Esmaeili Tarzi 4 , Kobra Bahrampour Juybari 5 , Moslem Abolhassani 3, 6 , Ali Mohammad Sharifi 7 , Hamze Paseban 8 , Mohsen Saravani 9, 10 , Solmaz Mirzamohammadi 11
Affiliation  

Parkinson's disease (PD) is a neurodegenerative disease accompanied by a low expression level of cerebral hypoxia-inducible factor (HIF-1α). Hence, activating the hypoxia-signaling pathway may be a favorable therapeutic approach for curing PD. This study explored the efficacy of hydralazine, a well-known antihypertensive agent, for restoring the impaired HIF-1 signaling in PD, with the aid of 6-hydroxydopamine (6-OHDA)-exposed SH-SY5Y cells. The cytotoxicity of hydralazine and 6-OHDA on the SH-SY5Y cells were evaluated by MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] and apoptosis detection assays. The activities of malondialdehyde, nitric oxide (NO), ferric reducing antioxidant power (FRAP), and superoxide dismutase (SOD) were also measured. Expression levels of HIF-1α and its downstream genes at the protein level were assessed by Western blotting. Hydralazine showed no toxic effects on SH-SY5Y cells, at the concentration of ≤50 μmol/L. Hydralazine decreased the levels of apoptosis, malondialdehyde, and NO, and increased the activities of FRAP and SOD in cells exposed to 6-OHDA. Furthermore, hydralazine up-regulated the protein expression levels of HIF-1α, vascular endothelial growth factor, tyrosine hydroxylase, and dopamine transporter in the cells also exposed to 6-OHDA, by comparison with the cells exposed to 6-OHDA alone. In summary, hydralazine priming could attenuate the deleterious effects of 6-OHDA on SH-SY5Y cells by increasing cellular antioxidant capacity, as well as the protein levels of HIF-1α and its downstream target genes.

中文翻译:

肼苯哒嗪对帕金森氏病细胞模型的保护作用:缺氧诱导因子(HIF)-1α的可能作用。

帕金森氏病(PD)是一种神经退行性疾病,伴有低氧诱导因子(HIF-1α)的低表达水平。因此,激活缺氧信号通路可能是治疗PD的有利治疗方法。这项研究探索了肼苯哒嗪(一种著名的降压药)借助暴露于6-羟基多巴胺(6-OHDA)的SH-SY5Y细胞来恢复PD中受损的HIF-1信号传导的功效。通过MTT [3-(4,5-二甲基噻唑-2-基)-2,5-二苯基四唑鎓溴化物]和细胞凋亡检测法评估了肼苯哒嗪和6-OHDA对SH-SY5Y细胞的细胞毒性。还测量了丙二醛,一氧化氮(NO),三价铁还原抗氧化剂能力(FRAP)和超氧化物歧化酶(SOD)的活性。通过蛋白质印迹法评估HIF-1α及其下游基因在蛋白质水平上的表达水平。肼屈嗪在≤50μmol/ L的浓度下对SH-SY5Y细胞无毒性作用。肼屈嗪降低了暴露于6-OHDA的细胞的凋亡,丙二醛和NO的水平,并增加了FRAP和SOD的活性。此外,与仅暴露于6-OHDA的细胞相比,肼屈嗪上调了也暴露于6-OHDA的细胞中HIF-1α,血管内皮生长因子,酪氨酸羟化酶和多巴胺转运蛋白的蛋白表达水平。总之,肼苯哒嗪引发可通过增加细胞的抗氧化能力以及HIF-1α及其下游靶基因的蛋白水平来减弱6-OHDA对SH-SY5Y细胞的有害作用。肼屈嗪在≤50μmol/ L的浓度下对SH-SY5Y细胞无毒性作用。肼屈嗪降低了暴露于6-OHDA的细胞的凋亡,丙二醛和NO的水平,并增加了FRAP和SOD的活性。此外,与仅暴露于6-OHDA的细胞相比,肼屈嗪上调了也暴露于6-OHDA的细胞中HIF-1α,血管内皮生长因子,酪氨酸羟化酶和多巴胺转运蛋白的蛋白表达水平。总之,肼苯哒嗪引发可通过增加细胞的抗氧化能力以及HIF-1α及其下游靶基因的蛋白水平来减弱6-OHDA对SH-SY5Y细胞的有害作用。肼屈嗪在≤50μmol/ L的浓度下对SH-SY5Y细胞无毒性作用。肼屈嗪降低了暴露于6-OHDA的细胞的凋亡,丙二醛和NO的水平,并增加了FRAP和SOD的活性。此外,与仅暴露于6-OHDA的细胞相比,肼屈嗪上调了也暴露于6-OHDA的细胞中HIF-1α,血管内皮生长因子,酪氨酸羟化酶和多巴胺转运蛋白的蛋白表达水平。总之,肼苯哒嗪引发可通过增加细胞的抗氧化能力以及HIF-1α及其下游靶基因的蛋白水平来减弱6-OHDA对SH-SY5Y细胞的有害作用。并增加了6-OHDA暴露的细胞中FRAP和SOD的活性。此外,与仅暴露于6-OHDA的细胞相比,肼屈嗪上调了也暴露于6-OHDA的细胞中HIF-1α,血管内皮生长因子,酪氨酸羟化酶和多巴胺转运蛋白的蛋白表达水平。总之,肼苯哒嗪引发可通过增加细胞的抗氧化能力以及HIF-1α及其下游靶基因的蛋白水平来减弱6-OHDA对SH-SY5Y细胞的有害作用。并增加了6-OHDA暴露的细胞中FRAP和SOD的活性。此外,与仅暴露于6-OHDA的细胞相比,肼屈嗪上调了也暴露于6-OHDA的细胞中HIF-1α,血管内皮生长因子,酪氨酸羟化酶和多巴胺转运蛋白的蛋白表达水平。总之,肼苯哒嗪引发可通过增加细胞的抗氧化能力以及HIF-1α及其下游靶基因的蛋白水平来减弱6-OHDA对SH-SY5Y细胞的有害作用。
更新日期:2020-01-15
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