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Bauer, M. ; Kinkl, N. ; Meixner, A. ; Kremmer, E. ; Riemenschneider, M.* ; Förstl, H.* ; Gasser, T.* ; Ueffing, M.

Prevention of interferon-stimulated gene expression using microRNA-designed hairpins.

Gene Ther. 16, 142-147 (2009)
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RNA interference allows selective gene silencing, and is widely used for functional analysis of individual genes in vertebrate cells and represents an attractive therapeutic option for treating central nervous system diseases. However, growing evidence exists that the expression of short hairpin RNAs (shRNAs) can trigger cellular immune response resulting in unspecific cellular phenotypes and severe side effects. We found that lentiviral vector (LV)-mediated expression of shRNAs in primary cortical cultures resulted in strong expression of the interferon-stimulated gene oligoadenylate synthetase 1 (Oas1), which was accompanied by accelerated apoptosis and substantial net neuron loss. Modification of the shRNA construct by implementing features of the naturally occurring microRNA-30 (miR-30) precursor avoided Oas1 induction in transduced primary cultures, whereby modification of the passenger strand seems to be a crucial feature to circumvent interferon-stimulated gene expression. This work represents the first experimental study showing that an miR-30-based shRNA construct prevents Oas1 pathway associated off-target effects, which we consider as an essential prerequisite for shRNA use in future gene therapeutic approaches.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter shRNA; microRNA; Lrrk2; lentiviral vectors; cortical neurons; Parkinson's disease
Sprache englisch
Veröffentlichungsjahr 2009
HGF-Berichtsjahr 0
ISSN (print) / ISBN 0969-7128
e-ISSN 1476-5462
Zeitschrift Gene Therapy
Quellenangaben Band: 16, Heft: 1, Seiten: 142-147 Artikelnummer: , Supplement: ,
Verlag Nature Publishing Group
Begutachtungsstatus Peer reviewed
POF Topic(s) 30203 - Molecular Targets and Therapies
Forschungsfeld(er) Enabling and Novel Technologies
PSP-Element(e) G-505700-001
G-501700-003
Scopus ID 58149456661
Erfassungsdatum 2008-12-10