Hair cell protection from aminoglycoside ototoxicity by adenovirus-mediated overexpression of glial cell line-derived neurotrophic factor.

Hair cell protection from aminoglycoside ototoxicity by adenovirus-mediated overexpression of glial cell line-derived neurotrophic factor.
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通过腺病毒介导的神经胶质细胞系衍生的神经营养因子的过度表达来保护毛细胞免受氨基糖苷类耳毒性。

DOI:
10.1089/10430349950018562
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发表时间:
1999
期刊:
Human gene therapy.
影响因子:
--
通讯作者:
Raphael,Y
Raphael,Y
中科院分区:
--
文献类型:
--
作者:
Yagi,M;Magal,E;Sheng,Z;Ang,KA;Raphael,Y

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氨基糖苷类是常用的抗菌药物,通常有耳毒性副作用。耳毒性通常包括永久性耳蜗毛细胞(HCS)的丧失。神经营养因子已被证明可以保护包括HCS在内的各种组织免受毒性创伤。为探讨胶质细胞源性神经营养因子(GDNF)是否具有保护耳蜗腺泡细胞损伤的作用,我们在注射氨基糖苷类药物前4天,通过圆窗膜将编码人GDNF基因的腺病毒载体接种到豚鼠耳蜗内。对照组接种病毒对耳蜗结构和功能的影响很小或没有负面影响。相比之下,与对照组相比,接种GDNF载体的耳朵在暴露于耳毒素后听力更好,丢失的HCS更少。我们的结果证明了基因治疗在耳蜗术中应用的可行性,并提示病毒介导的GDNF过表达可能成为一种有价值的预防创伤所致HC死亡的方法。
Aminoglycosides are commonly used antimicrobial drugs that often have ototoxic side effects. The ototoxicity often involves permanent loss of cochlear hair cells (HCs). Neurotrophic factors have been shown to protect a variety of tissues, including HCs, from toxic trauma. To determine if glial cell line-derived neurotrophic factor (GDNF) can protect cochlear HCs from trauma, we inoculated an adenoviral vector encoding the human GDNF gene into guinea pig cochleae via the round window membrane 4 days prior to injection of aminoglycosides. Control groups showed little or no negative influence of the viral inoculation on cochlear structure and function. In contrast, ears that were inoculated with the GDNF vector had better hearing and fewer missing HCs after exposure to the ototoxins, as compared with controls. Our results demonstrate the feasibility of gene therapy for cochlear application and suggest that virus-mediated overexpression of GDNF may be developed as a valuable prevention against trauma-induced HC death.
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DOI: --
发表时间: 2001
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