Evaluating methods and protocols of ferritin-based magnetogenetics.

Evaluating methods and protocols of ferritin-based magnetogenetics.
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DOI:
10.1016/j.isci.2021.103094
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发表时间:
2021-10-22
期刊:
影响因子:
5.8
通讯作者:
Liu C
Liu C
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Hernández-Morales M;Han V;Kramer RH;Liu C

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FeRIC(铁蛋白铁重分布至离子通道)是一种磁发生技术,其使用射频(RF)交变磁场激活与细胞铁蛋白偶联的瞬时受体电位通道TRPV 1和TRPV 4。在表达铁蛋白标记的TRPV的细胞中,RF刺激通过生物化学途径增加胞质Ca 2+水平。RF和铁蛋白之间的相互作用增加了游离胞质铁水平,这反过来又触发了产生活性氧和氧化脂质的化学反应,从而激活了铁蛋白标记的TRPV。在该途径中,预期干扰铁蛋白表达、铁蛋白铁负荷、TRPV功能表达或细胞氧化还原状态的实验因素将影响RF在激活铁蛋白标记的TRPV中的效率。在这里,我们研究了几个实验因素,无论是增强或取消RF控制铁蛋白标记的TRPV。这些发现可能有助于优化和建立可重复的磁遗传方案。不同的实验因素影响磁遗传学的效率磁遗传学的效率受TRPV 4通道下调的影响温度不敏感的TRPV 4突变体适用于磁遗传学铁蛋白铁负荷影响铁蛋白标记的TRPV 4的磁激活生物电磁学;遗传学;生物学实验方法
FeRIC (Ferritin iron Redistribution to Ion Channels) is a magnetogenetic technique that uses radiofrequency (RF) alternating magnetic fields to activate the transient receptor potential channels, TRPV1 and TRPV4, coupled to cellular ferritins. In cells expressing ferritin-tagged TRPV, RF stimulation increases the cytosolic Ca2+ levels via a biochemical pathway. The interaction between RF and ferritin increases the free cytosolic iron levels that, in turn, trigger chemical reactions producing reactive oxygen species and oxidized lipids that activate the ferritin-tagged TRPV. In this pathway, it is expected that experimental factors that disturb the ferritin expression, the ferritin iron load, the TRPV functional expression, or the cellular redox state will impact the efficiency of RF in activating ferritin-tagged TRPV. Here, we examined several experimental factors that either enhance or abolish the RF control of ferritin-tagged TRPV. The findings may help optimize and establish reproducible magnetogenetic protocols. Diverse experimental factors affect the efficiency of magnetogenetics Efficacy of magnetogenetics is affected by the downregulation of TRPV4 channels The temperature-insensitive TRPV4 mutant is suitable for use in magnetogenetics Ferritin iron load impacts the magnetic activation of ferritin-tagged TRPV4 Bioelectromagnetics; Genetics; Biology experimental methods
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发表时间: 2011-02-14
期刊: PloS one
影响因子: 3.7
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