Abstract

Hearing loss is the most common sensory disorder. While gene therapy has emerged as a promising treatment of inherited diseases like hearing loss, it is dependent on the identification of gene delivery vectors. Adeno-associated virus (AAV) vector-mediated gene therapy has been approved in the US for treating a rare inherited eye disease but no safe and efficient vectors have been identified that can target the diverse types of inner ear cells. Here, we identify an AAV variant, AAV-inner ear (AAV-ie), for gene delivery in mouse inner ear. Our results show that AAV-ie transduces the cochlear supporting cells (SCs) with high efficiency, representing a vast improvement over conventional AAV serotypes. Furthermore, after AAV-ie-mediated transfer of the Atoh1 gene, we find that many SCs trans-differentiated into new HCs. Our results suggest that AAV-ie is a useful tool for the cochlear gene therapy and for investigating the mechanism of HC regeneration.

Details

Title
AAV-ie enables safe and efficient gene transfer to inner ear cells
Author
Tan, Fangzhi 1   VIAFID ORCID Logo  ; Chu, Cenfeng 2   VIAFID ORCID Logo  ; Qi, Jieyu 3 ; Li, Wenyan 4 ; You, Dan 4 ; Li, Ke 5 ; Chen, Xin 6 ; Zhao, Weidong 4 ; Cheng, Cheng 7 ; Liu, Xiaoyi 2 ; Qiao, Yunbo 8 ; Su, Bing 2 ; He, Shuijin 9 ; Zhong, Chao 10   VIAFID ORCID Logo  ; Li, Huawei 4 ; Chai, Renjie 11 ; Zhong, Guisheng 12 

 iHuman Institute, ShanghaiTech University, Shanghai, China 
 iHuman Institute, ShanghaiTech University, Shanghai, China; School of Life Science and Technology, ShanghaiTech University, Shanghai, China; University of the Chinese Academy of Sciences, Beijing, China 
 MOE Key Laboratory for Developmental Genes and Human Disease, Institute of Life Sciences, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, China; Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, China 
 ENT Institute and Otorhinolaryngology Department of Affiliated Eye and ENT Hospital, Key Laboratory of Hearing Medicine of NHFPC, Shanghai Engineering Research Centre of Cochlear Implant, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, China 
 University of the Chinese Academy of Sciences, Beijing, China; School of Physical Science and Technology, ShanghaiTech University, Shanghai, China; Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China 
 School of Life Science and Technology, ShanghaiTech University, Shanghai, China; University of the Chinese Academy of Sciences, Beijing, China 
 Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline (Laboratory), Nanjing, China; Research Institute of Otolaryngology, Nanjing, China 
 Precise Genome Engineering Center, School of Life Sciences, Guangzhou University, Guangzhou, China 
 School of Life Science and Technology, ShanghaiTech University, Shanghai, China 
10  School of Physical Science and Technology, ShanghaiTech University, Shanghai, China 
11  MOE Key Laboratory for Developmental Genes and Human Disease, Institute of Life Sciences, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, China; Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, China; ENT Institute and Otorhinolaryngology Department of Affiliated Eye and ENT Hospital, Key Laboratory of Hearing Medicine of NHFPC, Shanghai Engineering Research Centre of Cochlear Implant, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, China; Institute for Stem Cell and Regeneration, Chinese Academy of Science, Beijing, China; Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China 
12  iHuman Institute, ShanghaiTech University, Shanghai, China; School of Life Science and Technology, ShanghaiTech University, Shanghai, China; Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, China 
Pages
1-10
Publication year
2019
Publication date
Aug 2019
Publisher
Nature Publishing Group
e-ISSN
20411723
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2275917826
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.