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Preclinical in vivo evaluation of the safety of a multi-shRNA-based gene therapy against HIV-1.

Abstract：

:Highly active antiretroviral therapy (HAART) has significantly improved the quality of life and the life expectancy of HIV-infected individuals. Still, drug-induced side effects and emergence of drug-resistant viral variants remain important issues that justify the exploration of alternative therapeutic options. One strategy consists of a gene therapy based on RNA interference to induce the sequence-specific degradation of the HIV-1 RNA genome. We have selected four potent short hairpin RNA (shRNA) candidates targeting the viral capside, integrase, protease and tat/rev open-reading frames and screened the safety of them during human hematopoietic cell development, both in vitro and in vivo. Although the four shRNA candidates appeared to be safe in vitro, one shRNA candidate impaired the in vivo development of the human immune system in Balb/c Rag2(-/-)IL-2Rγc(-/-) (BRG) mice. The three remaining shRNA candidates were combined into one single lentiviral vector (LV), and safety of the shRNA combination during human hematopoietic cell development was confirmed. Overall, we demonstrate here the preclinical in vivo safety of a LV expressing three shRNAs against HIV-1, which is proposed for a future Phase I clinical trial.Molecular Therapy-Nucleic Acids (2013) 2, e120; doi:10.1038/mtna.2013.48; published online 3 September 2013.

journal_name

Mol Ther Nucleic Acids

journal_title

Molecular therapy. Nucleic acids

authors

Centlivre M,Legrand N,Klamer S,Liu YP,Jasmijn von Eije K,Bohne M,Rijnstra ES,Weijer K,Blom B,Voermans C,Spits H,Berkhout B

doi

10.1038/mtna.2013.48

subject

Has Abstract

pub_date

2013-09-03 00:00:00

pages

e120

issn

2162-2531

pii

mtna201348

journal_volume

2

pub_type

杂志文章

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