4.7 Review

Application of Nanomedicine in Inner Ear Diseases

出版社

FRONTIERS MEDIA SA
DOI: 10.3389/fbioe.2021.809443

关键词

inner ear disease; nano-based drug delivery; local therapy; specific delivery; blood-inner ear barrier

资金

  1. Collaborative Innovation Project of Zhengzhou (Zhengzhou University) [18XTZX12004]
  2. China Postdoctoral Science Foundation [2019M662517]
  3. Henan Medical Science and Technology Project [LHGJ20190002]
  4. National Natural Science Foundation of China [82073168]

向作者/读者索取更多资源

The treatment of inner ear disorders is a challenging task for researchers, but nanotechnology provides an innovative approach to improve inner ear therapy. This review discusses various nanotechnology-based drug delivery systems for treating inner ear diseases and explores the factors influencing the therapeutic efficacy of nanomaterials.
The treatment of inner ear disorders always remains a challenge for researchers. The presence of various physiological barriers, primarily the blood-labyrinth barrier (BLB), limits the accessibility of the inner ear and hinders the efficacy of various drug therapies. Yet despite recent advances in the cochlea for repair and regeneration, there are currently no pharmacological or biological interventions for hearing loss. Current research focuses on the localized drug-, gene-, and cell-based therapies. Drug delivery based on nanotechnology represents an innovative strategy to improve inner ear treatments. Materials with specific nanostructures not only exhibit a unique ability to encapsulate and transport therapeutics to the inner ear but also endow specific targeting properties to auditory hair cells as well as the stabilization and sustained drug release. Along with this, some alternative routes, like intratympanic drug delivery, can also offer a better means to access the inner ear without exposure to the BLB. This review discusses a variety of nano-based drug delivery systems to the ear for treating inner ear diseases. The main factors affecting the curative efficacy of nanomaterials are also discussed. With a deeper understanding of the link between these crucial factors and the clinical effect of nanomaterials, it paves the way for the optimization of the therapeutic activity of nanocarriers.

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