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JoVE Journal
Developmental Biology
在 非洲爪蟾 蝌蚪中生成视网膜损伤模型
在 非洲爪蟾 蝌蚪中生成视网膜损伤模型
JoVE Journal
Developmental Biology
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JoVE Journal Developmental Biology
Generating Retinal Injury Models in Xenopus Tadpoles

在 非洲爪蟾 蝌蚪中生成视网膜损伤模型

Full Text
1,744 Views
09:29 min
October 13, 2023

DOI: 10.3791/65771-v

Karine Parain*1, Alicia Donval*1, Albert Chesneau*1, Jing Xian Lun1, Caroline Borday1, Muriel Perron1

1Paris-Saclay Institute of Neuroscience, CNRS,Université Paris-Saclay

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Please note that some of the translations on this page are AI generated. Click here for the English version.

Summary

我们已经开发了几种方案来诱导 非洲爪 蟾蝌蚪的视网膜损伤或视网膜变性。这些模型为研究视网膜再生机制提供了可能性。

Transcript

我的实验室致力于视网膜再生。我们使用非洲爪蟾青蛙作为模型系统。这种两栖动物确实非常迷人,因为与我们这样的哺乳动物不同,它可以在受伤的情况下非常有效地再生视网膜。

我们正在研究潜在的机制,因为在未来,它可能有助于触发患有视网膜神经退行性疾病的人类患者的视网膜再生。我们最近发现,除了视网膜外围的干细胞和视网膜色素上皮外,神经胶质细胞也可以在受伤的情况下被募集用于视网膜再生。因此,我们现在正在研究神经炎症与这些细胞的再生能力之间的联系。

事实上,神经炎症生态位似乎是调节视网膜再生的关键参与者。为了研究参与视网膜再生的细胞和分子机制,我们在非洲爪蟾中开发了几种视网膜损伤范式。第一种是机械性视网膜损伤。

第二种是允许硝基还原酶介导的光感受器条件消融的转基因系。第三种是基于CRISPR / Cas9介导的视紫红质敲除的视网膜色素变性模型,最后是由眼内注射氯化钴或CoCl2驱动的细胞毒性模型。我的宿主实验室表明,虽然非洲爪蟾可以再生视网膜,但效率差异很大,取决于蝌蚪的阶段或物种,非洲爪蟾或热带非洲爪蟾。

这使得非洲爪蟾成为说明触发或限制视网膜再生的分子机制的绝佳模型。

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