Department of Otolaryngology, Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu, China.
College of Biomedical Engineering, Sichuan University, Chengdu, China.
Cell Prolif. 2020 Nov;53(11):e12915. doi: 10.1111/cpr.12915. Epub 2020 Oct 13.
Programmed cell death (PCD)-apoptosis, autophagy and programmed necrosis-is any pathological form of cell death mediated by intracellular processes. Ototoxic drugs, ageing and noise exposure are some common pathogenic factors of sensorineural hearing loss (SNHL) that can induce the programmed death of auditory hair cells through different pathways, and eventually lead to the loss of hair cells. Furthermore, several mutations in apoptotic genes including DFNA5, DFNA51 and DFNB74 have been suggested to be responsible for the new functional classes of monogenic hearing loss (HL). Therefore, in this review, we elucidate the role of these three forms of PCD in different types of HL and discuss their guiding significance for HL treatment. We believe that further studies of PCD pathways are necessary to understand the pathogenesis of HL and guide scientists and clinicians to identify new drug targets for HL treatment.
程序性细胞死亡(PCD)-凋亡、自噬和程序性坏死-是由细胞内过程介导的任何病理性细胞死亡形式。耳毒性药物、衰老和噪声暴露是导致感音神经性听力损失(SNHL)的一些常见致病因素,它们可以通过不同的途径诱导听觉毛细胞程序性死亡,最终导致毛细胞丧失。此外,一些凋亡基因(包括 DFNA5、DFNA51 和 DFNB74)的突变被认为与新型单基因听力损失(HL)功能类别有关。因此,在本综述中,我们阐述了这三种 PCD 形式在不同类型 HL 中的作用,并讨论了它们对 HL 治疗的指导意义。我们认为,进一步研究 PCD 途径对于理解 HL 的发病机制以及指导科学家和临床医生确定 HL 治疗的新药物靶点是必要的。