Ann Clin Transl Neurol:CXCR4受体激动剂可在坐骨神经损伤后刺激轴突的再生

2020-10-02 MedSci原创 MedSci原创

本研究旨在检验坐骨神经被挤压/切割后信号轴CXCL12α-CXCR4是否被激活,并检验新型CXCR4激动剂NUCC-390在促进神经损伤恢复方面的活性,研究结果已在线发表于Ann Clin

本研究旨在检验坐骨神经被挤压/切割后信号轴CXCL12α-CXCR4是否被激活,并检验新型CXCR4激动剂NUCC-390在促进神经损伤恢复方面的活性,研究结果已在线发表于Ann Clin Transl Neurol。

压碎或切断坐骨神经。通过特异性抗体成像评估CXCL12α和CXCR4的表达和定位。通过抗体中和CXCL12α,以及CXCR4特异性拮抗剂AMD3100,确定它们在神经再生中的功能,使用复合肌肉动作电位(CMAP)作为定量读出。通过成像和CMAP记录确定NUCC-390对神经再生的活性。

 

结果显示,CXCR4在轴突内的损伤部位表达,而其配体CXCL12α在施万细胞中表达。CXCL12α-CXCR4轴参与了受伤神经的神经传递的恢复。更重要的是,小分子NUCC-390通过与CXCL12α十分相似的作用,有力地促进了神经的功能和解剖学恢复。这种药理作用是由于NUCC-390在体外和体内都能促进运动神经元轴突的伸长。

综上所述,影像学和电生理学数据提供了新的和令人信服的证据,证明CXCL12α-CXCR4轴参与了粉碎/切割后的坐骨神经修复。这使得NUCC-390成为一个强有力的候选分子,通过促进轴突伸长来刺激神经修复。建议将该分子在其他神经元损伤模型中进行测试,为临床试验NUCC-390在人体周围神经修复中的疗效奠定基础。

 

原始出处:

 

Giulia ZanettiSamuele Negro, et al., A CXCR4 receptor agonist strongly stimulates axonal regeneration after damage. Ann Clin Transl Neurol. 2019 Dec;6(12):2395-2402. doi: 10.1002/acn3.50926. 

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    2020-11-03 bsmagic9140
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    2021-07-23 yinhl1978
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    2020-10-04 chenwq09
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