Adeno-Associated Virus Vector for Central Nervous System Gene Therapy

Trends Mol Med. 2021 Jun;27(6):524-537. doi: 10.1016/j.molmed.2021.03.010. Epub 2021 Apr 21.

Abstract

The past several years have witnessed significant advances in the development of therapeutic gene delivery for neurological disorders of the central nervous system (CNS). In particular, genome-wide sequencing analysis has deepened our understanding of mutations that underlie many monogenic disorders, which in turn has contributed to clinical advances involving adeno-associated virus (AAV) vector delivery of replacement genes to treat recessive disorders. Moreover, gene therapy has been further bolstered with advances in genome editing tools that allow researchers to silence, repair, and amend endogenous genes. However, despite strong preclinical and clinical progress, challenges remain, including delivery and safety. Here, we discuss advances in AAV engineering, recent developments in cargo design, and translation of these technologies towards clinical progress.

Keywords: AAV; CNS; gene therapy.

Publication types

  • Review

MeSH terms

  • Animals
  • Central Nervous System Diseases / genetics
  • Central Nervous System Diseases / therapy*
  • Dependovirus / genetics*
  • Genetic Therapy / methods*
  • Genetic Vectors / administration & dosage*
  • Genetic Vectors / genetics
  • Humans
  • Phenotype