Many studies on gene therapy are directed to the development of efficient vectors for gene transfer. In recent years, there is increasing interest in nonviral vectors because, despite the undeniable efficiency of viral vectors in the transfer of DNA, they have limitations associated, as are the difficult achievement of viral particles titles high, and biological safety risks, such as induction of immune responses, insertional mutagenesis or reversion phenomena. In the context of this growing concern about the potential dangers of using viral vectors, researchers from the Autonomous University of Barcelona publish their work on potential non-viral vectors that provide more security to the process of introducing therapeutic nucleotide sequences. (more...)