Estradiol protects hair cells from cisplatin-induced ototoxicity via Nrf2 activation

Cisplatin-induced ototoxicity is caused by reactive oxygen species. It has been recognized that estradiol (E2) regulates redox balance. However, little is known about the protective mechanisms of E2 against cisplatin-induced ototoxicity. In this study, we investigated the effect of E2 on nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated hair cell protection using the organ of Corti isolated from mice. The organ of Corti collected from C57BL/6 mice at 3-5 postnatal days was used in all experiments. The organ of Corti was exposed to 20 μM cisplatin with/without 100 nM E2 to examine the effect of E2 on cisplatin-induced hair cell loss. The mRNA expression of Nrf2 and the phase II detoxification gene after E2 and cisplatin treatment was analyzed using quantitative real-time PCR. E2 significantly reduces cisplatin-induced cochlear hair cell death. In addition, 100 nM E2 increased the mRNA expression of Nrf2 and phase II detoxification genes in the organ of Corti under cisplatin treatment. Our results suggest that E2 activates Nrf2, phase II detoxification enzymes and exerts a protective effect against cisplatin-induced ototoxicity.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:28

Enthalten in:

Redox report : communications in free radical research - 28(2023), 1 vom: 01. Dez., Seite 2161224

Sprache:

Englisch

Beteiligte Personen:

Adachi, Masahiro [VerfasserIn]
Yanagizono, Kota [VerfasserIn]
Okano, Yasuhito [VerfasserIn]
Koizumi, Hitoshi [VerfasserIn]
Uemaetomari, Isao [VerfasserIn]
Tabuchi, Keiji [VerfasserIn]

Links:

Volltext

Themen:

4TI98Z838E
Antineoplastic Agents
Cisplatin
Cochlea hair cell
Estradiol
GSTA4
Journal Article
NF-E2-Related Factor 2
Nrf2
Organ of corti
Ototoxicity
Q20Q21Q62J
RNA, Messenger
Reactive Oxygen Species
Reactive oxygen species

Anmerkungen:

Date Completed 23.01.2023

Date Revised 25.01.2023

published: Print

Citation Status MEDLINE

doi:

10.1080/13510002.2022.2161224

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM351719814