Impact of the neural cell adhesion molecule-derived peptide FGL on seizure progression and cellular alterations in the mouse kindling model.

Impact of the neural cell adhesion molecule-derived peptide FGL on seizure progression and cellular alterations in the mouse kindling model.
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神经细胞粘附分子衍生肽 FGL 对小鼠点燃模型中癫痫发作进展和细胞改变的影响

DOI:
10.1021/cn400153g
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发表时间:
2014
影响因子:
5
通讯作者:
H Potschka
H Potschka
中科院分区:
医学3区
文献类型:
--
作者:
Zellinger C;Salvamoser J;Seeger N;Russmann V;H Potschka

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神经细胞粘附分子肽模拟成纤维细胞生长环(FGL)在不同的体外和体内实验中被证明具有神经保护、神经营养和抗炎作用。基于这种有益的功效,目前正在针对神经退行性疾病和脑损伤进行临床开发。在这里,我们提出了这样的假设:肽可能会影响点燃范式中癫痫发作的发展,以及相关的行为和细胞改变。所测试的两种剂量(2 毫克/千克和 10 毫克/千克 FGL)均显着减少了诱发全身性癫痫发作所需的刺激次数。 FGL 并未对点燃动物的行为模式产生相关影响。正如预期的那样,点燃会增加海马细胞的增殖率。虽然低剂量的 FGL 不会影响这种与点燃相关的改变,但 10 mg/kg FGL 被证明可以减弱双皮质素阳性细胞群的扩张。这些数据表明,FGL 给药可能对海马神经元祖细胞群中与疾病相关的改变产生影响。总之,肽模拟物 FGL 在点燃模型中的作用并未证实对癫痫的发展或病程具有有益影响的疾病缓解作用。 FGL 获得的结果引起了人们对假定效应的一些担忧,该效应可能会促进过度兴奋网络的形成。未来的研究需要进一步评估自发性癫痫发作模型的风险。
The neural cell adhesion molecule peptide mimetic fibroblast growth loop (FGL) proved to exert neuroprotective, neurotrophic, and anti-inflammatory effects in differentin vitroandin vivoexperiments. Based on this beneficial efficacy profile, it is currently in clinical development for neurodegenerative diseases and brain insults. Here, we addressed the hypothesis that the peptide might affect development of seizures in a kindling paradigm, as well as associated behavioral and cellular alterations. Both doses tested, 2 and 10 mg/kg FGL, significantly reduced the number of stimulations necessary to induce a generalized seizure. FGL did not exert relevant effects on the behavioral patterns of kindled animals. As expected, kindling increased the hippocampal cell proliferation rate. Whereas the low dose of FGL did not affect this kindling-associated alteration, 10 mg/kg FGL proved to attenuate the expansion of the doublecortin-positive cell population. These data suggest that FGL administration might have an impact on disease-associated alterations in the hippocampal neuronal progenitor cell population. In conclusion, the effects of the peptide mimetic FGL in the kindling model do not confirm a disease-modifying effect with a beneficial impact on the development or course of epilepsy. The results obtained with FGL rather raise some concern regarding a putative effect, which might promote the formation of a hyperexcitable network. Future studies are required to further assess the risks in models with development of spontaneous seizures.
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DOI: 10.1016/j.neulet.2008.03.070
发表时间: 2008
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期刊: Epilepsia
影响因子: 5.6
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发表时间: 2008
影响因子: 3.4
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影响因子: 2.2
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DOI: 10.1007/s11064-008-9771-0
发表时间: 2008
影响因子: 4.4
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通讯作者: E. Bock