Mechanism of cell death for programmed necrosis against noise-induced hearing loss

• Project/Area Number: 15K10750
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Otorhinolaryngology
• Research Institution: Kobe University
• Principal Investigator: Yamashita Daisuke 神戸大学, 医学研究科, 医学研究員 (60306785)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 内耳 / アポトーシス / 再生 / 細胞死

Outline of Final Research Achievements

We first manufactured the animal models that became hearing loss induced by intense noise. In the hearing loss animal model, we elucidated the mechanism which led to the cell death (apoptosis) of inner hair cells. Finally, based on these results, we examined the method that hearing loss was treated by various kinds of approaches, and the results that might cure hearing loss in the both sides where were in hearing function / inner ear morphology were obtained.