1
|
Gao D, Yu H, Li B, Chen L, Li X, Gu W. Cisplatin Toxicology: The Role of Pro-inflammatory Cytokines and GABA Transporters in Cochlear Spiral Ganglion. Curr Pharm Des 2020; 25:4820-4826. [PMID: 31692421 DOI: 10.2174/1381612825666191106143743] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/01/2019] [Indexed: 12/20/2022]
Abstract
Background:
The current study was conducted to examine the specific activation of pro-inflammatory
cytokines (PICs), namely IL-1β, IL-6 and TNF-α in the cochlear spiral ganglion of rats after ototoxicity induced
by cisplatin. Since γ-aminobutyric acid (GABA) and its receptors are involved in pathophysiological processes of
ototoxicity, we further examined the role played by PICs in regulating expression of GABA transporter type 1
and 3 (GAT-1 and GAT-3), as two essential subtypes of GATs responsible for the regulation of extracellular
GABA levels in the neuronal tissues.
Methods:
ELISA and western blot analysis were employed to examine the levels of PICs and GATs; and auditory
brainstem response was used to assess ototoxicity induced by cisplatin.
Results:
IL-1β, IL-6 and TNF-α as well as their receptors were significantly increased in the spiral ganglion of
ototoxic rats as compared with sham control animals (P<0.05, ototoxic rats vs. control rats). Cisplatin-ototoxicity
also induced upregulation of the protein levels of GAT-1 and GAT-3 in the spiral ganglion (P<0.05 vs. controls).
In addition, administration of inhibitors to IL-1β, IL-6 and TNF-α attenuated amplification of GAT-1 and GAT-3
and improved hearing impairment induced by cisplatin.
Conclusion:
Our data indicate that PIC signals are activated in the spiral ganglion during cisplatin-ototoxicity
which thereby leads to upregulation of GABA transporters. As a result, it is likely that de-inhibition of GABA
system is enhanced in the cochlear spiral ganglion. This supports a role for PICs in engagement of the signal
mechanisms associated with cisplatin-ototoxicity, and has pharmacological implications to target specific PICs
for GABAergic dysfunction and vulnerability related to cisplatin-ototoxicity.
Collapse
Affiliation(s)
- Dongmei Gao
- Department of Otorhinolaryngology, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Hong Yu
- Department of Otorhinolaryngology, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Bo Li
- Department of Rehabilitation, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, China
| | - Li Chen
- Hospital of Stomatology, Jilin University, Changchun, Jilin 130000, China
| | - Xiaoyu Li
- Department of Otorhinolaryngology, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Wenqing Gu
- Department of Otorhinolaryngology, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| |
Collapse
|
2
|
Abbas L, Rivolta MN. The use of animal models to study cell transplantation in neuropathic hearing loss. Hear Res 2019; 377:72-87. [DOI: 10.1016/j.heares.2019.03.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/12/2019] [Accepted: 03/15/2019] [Indexed: 01/29/2023]
|
3
|
Qin D, Liu P, Chen H, Huang X, Ye W, Lin X, Wei F, Su J. Salicylate-Induced Ototoxicity of Spiral Ganglion Neurons: Ca 2+/CaMKII-Mediated Interaction Between NMDA Receptor and GABA A Receptor. Neurotox Res 2019; 35:838-847. [PMID: 30820888 DOI: 10.1007/s12640-019-0006-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/21/2019] [Accepted: 01/24/2019] [Indexed: 10/27/2022]
Abstract
Sodium salicylate (SS) is one of the nonsteroidal anti-inflammatory drugs and widely used in clinical practice. Therefore, we aimed to investigate the potential ototoxicity mechanism of sodium salicylate: the influence of Ca2+/calmodulin-dependent protein kinase II (Ca2+/CaMKII) in interaction between NMDA receptors (NMDAR) and GABAA receptors (GABAAR) in rat cochlear spiral ganglion neurons (SGNs). After treatment with SS, NMDA, and an NMDAR inhibitor (APV), the changes of GABAAR β3 (GABR β3) mRNA, surface and total protein, and GABAAR currents in SGNs were assessed by quantitative PCR, Western blot, and whole-cell patch clamp. Mechanistically, SS and/or NMDA increased the GABR β3 mRNA expression, while decreased GABR β3 surface protein levels and GABAAR-mediated currents. Moreover, application of SS and/or NMDA showed promotion in phosphorylation levels at S383 of GABR β3. Collectively, Ca2+ chelator (BAPTA) or Ca2+/CaMKII inhibitor (KN-93) reversed the effects of SS and/or NMDA on GABAAR. Therefore, we hypothesize that the interaction between NMDAR and GABAAR is involved in the SGNs damage induced by SS. In addition, the underlying molecular mechanism is related to Ca2+/CaMKII-mediated signaling pathway, which suggests that the interaction between calcium signal-regulated receptors mediates SS ototoxicity.
Collapse
Affiliation(s)
- Danxue Qin
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Peiqiang Liu
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Huiying Chen
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Xi Huang
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.,Department of Otolaryngology-Head and Neck Surgery, Wuhan No.1 Hospital, Wuhan, 430022, Hubei, China
| | - Wenhua Ye
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Xiaoyu Lin
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Fangyu Wei
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Jiping Su
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.
| |
Collapse
|
4
|
Reijntjes DO, Pyott SJ. The afferent signaling complex: Regulation of type I spiral ganglion neuron responses in the auditory periphery. Hear Res 2016; 336:1-16. [DOI: 10.1016/j.heares.2016.03.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 02/12/2016] [Accepted: 03/07/2016] [Indexed: 12/19/2022]
|
5
|
Tabuchi K, Sakai S, Nakayama M, Nishimura B, Hayashi K, Hirose Y, Hara A. The effects of A1 and A2A adenosine receptor agonists on kainic acid excitotoxicity in the guinea pig cochlea. Neurosci Lett 2012; 518:60-3. [DOI: 10.1016/j.neulet.2012.04.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 04/09/2012] [Accepted: 04/24/2012] [Indexed: 12/20/2022]
|
6
|
Tabuchi K, Nishimura B, Tanaka S, Hayashi K, Hirose Y, Hara A. Ischemia-reperfusion injury of the cochlea: pharmacological strategies for cochlear protection and implications of glutamate and reactive oxygen species. Curr Neuropharmacol 2011; 8:128-34. [PMID: 21119884 PMCID: PMC2923367 DOI: 10.2174/157015910791233123] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Revised: 01/15/2010] [Accepted: 02/04/2010] [Indexed: 11/22/2022] Open
Abstract
A large amount of energy produced by active aerobic metabolism is necessary for the cochlea to maintain its function. This makes the cochlea vulnerable to blockade of cochlear blood flow and interruption of the oxygen supply. Although certain forms of human idiopathic sudden sensorineural hearing loss reportedly arise from ischemic injury, the pathological mechanism of cochlear ischemia-reperfusion injury has not been fully elucidated. Recent animal studies have shed light on the mechanisms of cochlear ischemia-reperfusion injury. It will help in the understanding of the pathology of cochlear ischemia-reperfusion injury to classify this injury into ischemic injury and reperfusion injury. Excitotoxicity, mainly observed during the ischemic period, aggravates the injury of primary auditory neurons. On the other hand, oxidative damage induced by hydroxyl radicals and nitric oxide enhances cochlear reperfusion injury. This article briefly summarizes the generation mechanisms of cochlear ischemia-reperfusion injury and potential therapeutic targets that could be developed for the effective management of this injury type.
Collapse
Affiliation(s)
- Keiji Tabuchi
- Department of Otolaryngology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.
| | | | | | | | | | | |
Collapse
|