Kanamycin Damages Early Postnatal, but Not Adult Spiral Ganglion Neurons.
Kanamycin Damages Early Postnatal, but Not Adult Spiral Ganglion Neurons.
复制标题
DOI:
10.1007/s12640-017-9773-2
复制
发表时间:
2017-11
影响因子:
3.7
通讯作者:
Salvi R
中科院分区:
文献类型:
--
作者:
Gao K;Ding D;Sun H;Roth J;Salvi R
Although aminoglycoside antibiotics such as kanamycin are widely used clinically to treat life threatening bacterial infections, ototoxicity remains a significant dose-limiting side effect. The prevailing view is that the hair cells are the primary ototoxic target of aminoglycosides and that spiral ganglion neurons begin to degenerate weeks or months after the hair cells have died due to lack of neurotrophic support. To test the early developmental aspects of this issue, we compared kanamycin-induced hair cell and spiral ganglion pathology in rat postnatal day 3 cochlear organotypic cultures with adult whole cochlear explants. In both adult and postnatal day 3 cultures, hair cell damage began at the base of the cochleae and progressed towards the apex in a dose dependent manner. In postnatal day 3 cultures, spiral ganglion neurons were rapidly destroyed by kanamycin prior to hair cell loss. In contrast, adult spiral ganglion neurons were resistant to kanamycin damage even at the highest concentration, consistent with in vivo models of delayed SGN degeneration. In postnatal day 3 cultures, kanamycin preferentially damaged type I spiral ganglion neurons whereas type II neurons were resistant. Spiral ganglion degeneration of postnatal day 3 neurons was associated with upregulation of the superoxide radical and caspase-3 mediated cell death. These results show for the first time that kanamycin is toxic to postnatal day 3 spiral ganglion neurons, but not adult neurons.
登录
查看更多内容
DOI:
10.1523/jneurosci.4559-12.2013
发表时间:
2013-04-24
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Esterberg R;Hailey DW;Coffin AB;Raible DW;Rubel EW
通讯作者:
Rubel EW
影响因子:
3.7
作者:
Ding D;Qi W;Yu D;Jiang H;Han C;Kim MJ;Katsuno K;Hsieh YH;Miyakawa T;Salvi R;Tanokura M;Someya S
通讯作者:
Someya S
DOI:
10.18632/aging.100927
发表时间:
2016-04
期刊:
Aging
影响因子:
--
作者:
Ding D;Jiang H;Chen GD;Longo-Guess C;Muthaiah VP;Tian C;Sheppard A;Salvi R;Johnson KR
通讯作者:
Johnson KR
影响因子:
2.8
作者:
Ding, DL;Stracher, A;Salvi, RJ
通讯作者:
Salvi, RJ
影响因子:
2.9
作者:
Hashino, E;Salvi, RJ
通讯作者:
Salvi, RJ