Dynamic Spatiotemporal Expression Changes in Connexins of the Developing Primate's Cochlea.

Dynamic Spatiotemporal Expression Changes in Connexins of the Developing Primate's Cochlea.
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DOI:
10.3390/genes12071082
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发表时间:
2021-07-16
期刊:
影响因子:
3.5
通讯作者:
Ozawa H
Ozawa H
中科院分区:
生物学3区
文献类型:
--
作者:
Hosoya M;Fujioka M;Murayama AY;Ogawa K;Okano H;Ozawa H

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连接蛋白是获得正常听力所必需的间隙连接成分。高达50%的先天性、常染色体隐性、非综合征性耳聋可归因于编码连接蛋白26的基因GJB2的变异。基因疗法修饰连接蛋白的表达是一种可行的治疗方案,为一些患者的遗传性听力损失。然而,由于伦理问题,这些蛋白质在人类胎儿中的表达模式尚不完全清楚。最近,常见的狨猴被用作人类胎儿的灵长类动物模型。在这项研究中,我们检测了连接蛋白26和连接蛋白30在这种灵长类动物发育中的耳蜗中的表达模式。揭示了灵长类动物特异性的时空表达变化,这表明存在灵长类动物特异性控制连接蛋白的表达模式和这些间隙连接蛋白的特异性功能。此外,我们的研究结果表明,在啮齿动物模型中建立的连接蛋白相关听力损失治疗方法可能不适用于人类患者,这强调了在将这些治疗方法应用于人类临床试验之前在灵长类动物模型中测试这些治疗方法的重要性。
Connexins are gap junction components that are essential for acquiring normal hearing ability. Up to 50% of congenital, autosomal-recessive, non-syndromic deafness can be attributed to variants in GJB2, the gene that encodes connexin 26. Gene therapies modifying the expression of connexins are a feasible treatment option for some patients with genetic hearing losses. However, the expression patterns of these proteins in the human fetus are not fully understood due to ethical concerns. Recently, the common marmoset was used as a primate animal model for the human fetus. In this study, we examined the expression patterns of connexin 26 and connexin 30 in the developing cochlea of this primate. Primate-specific spatiotemporal expression changes were revealed, which suggest the existence of primate-specific control of connexin expression patterns and specific functions of these gap junction proteins. Moreover, our results indicate that treatments for connexin-related hearing loss established in rodent models may not be appropriate for human patients, underscoring the importance of testing these treatments in primate models before applying them in human clinical trials.
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发表时间: 2021-01
期刊: The FEBS journal
影响因子: --
作者:
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