Emerging Issues in AAV-Mediated Gene Therapy
Overview
Affiliations
In recent years, the number of clinical trials in which adeno-associated virus (AAV) vectors have been used for gene transfer has steadily increased. The excellent safety profile, together with the high efficiency of transduction of a broad range of target tissues, has established AAV vectors as the platform of choice for gene therapy. Successful application of the AAV technology has also been achieved in the clinic for a variety of conditions, including coagulation disorders, inherited blindness, and neurodegenerative diseases, among others. Clinical translation of novel and effective "therapeutic products" is, however, a long process that involves several cycles of iterations from bench to bedside that are required to address issues encountered during drug development. For the AAV vector gene transfer technology, several hurdles have emerged in both preclinical studies and clinical trials; addressing these issues will allow in the future to expand the scope of AAV gene transfer as a therapeutic modality for a variety of human diseases. In this review, we will give an overview on the biology of AAV vector, discuss the design of AAV-based gene therapy strategies for applications, and present key achievements and emerging issues in the field. We will use the liver as a model target tissue for gene transfer based on the large amount of data available from preclinical and clinical studies.
Efforts to Downsize Base Editors for Clinical Applications.
Song B Int J Mol Sci. 2025; 26(5).
PMID: 40076976 PMC: 11900391. DOI: 10.3390/ijms26052357.
Xiao Y, Lian X, Sun Y, Sung Y, Vaidya A, Chen Z Nat Mater. 2025; .
PMID: 40021827 DOI: 10.1038/s41563-024-02116-3.
van Olden R, Lo Bianco C, Dilly K, Savelieva M, Xu S, Tijsma A Mol Ther Methods Clin Dev. 2025; 32(4):101344.
PMID: 40018025 PMC: 11866128. DOI: 10.1016/j.omtm.2024.101344.
Adeno-Associated Virus Vectors: Principles, Practices, and Prospects in Gene Therapy.
Zwi-Dantsis L, Mohamed S, Massaro G, Moeendarbary E Viruses. 2025; 17(2).
PMID: 40006994 PMC: 11861813. DOI: 10.3390/v17020239.
Looking to the Future of Viral Vectors in Ocular Gene Therapy: Clinical Review.
Kharisova C, Kitaeva K, Solovyeva V, Sufianov A, Sufianova G, Akhmetshin R Biomedicines. 2025; 13(2).
PMID: 40002778 PMC: 11852528. DOI: 10.3390/biomedicines13020365.