The phosphodiesterase inhibitor, ibudilast, attenuates neuroinflammation in the MPTP model of Parkinson's disease.

The phosphodiesterase inhibitor, ibudilast, attenuates neuroinflammation in the MPTP model of Parkinson's disease.
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DOI:
10.1371/journal.pone.0182019
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发表时间:
2017
期刊:
影响因子:
3.7
通讯作者:
Kurkowska-Jastrzębska I
Kurkowska-Jastrzębska I
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Schwenkgrub J;Zaremba M;Joniec-Maciejak I;Cudna A;Mirowska-Guzel D;Kurkowska-Jastrzębska I

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由于帕金森病(PD)中黑质纹状体多巴胺能通路的变性与炎症过程和环核苷酸水平降低相关,因此抑制上调的环核苷酸磷酸二酯酶(PDE)似乎是一种有前途的治疗策略。我们使用异丁司特(IBD),一种非选择性PDE 3,4,10,11抑制剂,由于丰富的PDE 4和10在纹状体中的表达。本研究首次检查了IBD在1-甲基-4-苯基-1,2,3,6-四氢吡啶(MPTP)PD小鼠模型中的疗效。IBD [0、20、30、40或50 mg/kg]每日两次注射。在MPTP(60 mg/kg)中毒前两天开始,对三个月大的雄性C57 Bl/10 Tar小鼠皮下注射9天。采用高压液相色谱法、Western blot分析法和真实的实时RT-PCR法。我们的研究表明,IBD的慢性管理衰减星形胶质细胞的反应性和增加的胶质细胞源性神经营养因子(GDNF)在纹状体的生产。此外,IBD降低了TNF-α、IL-6和IL-1β的表达。IBD对PD小鼠模型中的星形胶质细胞活化有明确的影响;然而,在损伤的急性期没有保护作用。炎症减少和GDNF水平增加可能在神经退行性变的后期阶段提供更好的结果。
Since the degeneration of the nigrostriatal dopaminergic pathway in Parkinson’s disease (PD) is associated with the inflammation process and decreased levels of cyclic nucleotides, inhibition of up-regulated cyclic nucleotide phosphodiesterases (PDEs) appears to be a promising therapeutic strategy. We used ibudilast (IBD), a non-selective PDE3,4,10,11 inhibitor, due to the abundant PDE 4 and 10 expression in the striatum. The present study for the first time examined the efficacy of IBD in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of PD. IBD [0, 20, 30, 40, or 50 mg/kg] was injected b.i.d. subcutaneously for nine days to three-month-old male C57Bl/10Tar mice, beginning two days prior to MPTP (60 mg/kg) intoxication. High-pressure liquid chromatography, Western blot analysis, and real time RT-PCR methods were applied. Our study demonstrated that chronic administration of IBD attenuated astroglial reactivity and increased glial cell-derived neurotrophic factor (GDNF) production in the striatum. Moreover, IBD reduced TNF-α, IL-6, and IL-1β expression. IBD had a well-defined effect on astroglial activation in the mouse model of PD; however, there was no protective effect in the acute phase of injury. Diminished inflammation and an increased level of GDNF may provide a better outcome in the later stages of neurodegeneration.
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