Tightly regulated ‘all-in-one’ lentiviral vectors for protection of human hematopoietic cells from anticancer chemotherapy
Tightly regulated ‘all-in-one’ lentiviral vectors for protection of human hematopoietic cells from anticancer chemotherapy
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严格调控的“一体化”慢病毒载体,用于保护人类造血细胞免受抗癌化疗的影响
DOI:
10.1038/gt.2015.61
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发表时间:
2015
期刊:
影响因子:
5.1
通讯作者:
Moritz T
中科院分区:
文献类型:
--
作者:
Lachmann N;Brennig S;Hillje R;Schermeier H;Phaltane R;Dahlmann J;Gruh I;Heinz N;Schiedlmeier B;Baum C;Moritz T
Successful application of gene therapy strategies may require stringently regulated transgene expression. Along this line, we describe a doxycycline (Dox)-inducible ‘all-in-one’lentiviral vector design using the pTET-T11 (TII) minimal-promoter and a reverse transactivator protein (rtTA2S-M2) driven by the phosphoglycerate kinase promoter allowing for tight regulation of transgene expression (Lv. TII vectors). Vector design was evaluated in human hematopoietic cells in the context of cytidine deaminase (hCDD)-based myeloprotective gene therapy. Upon Dox administration, a rapid (16–24 h) and dose-dependent (> 0.04 μg ml− 1 Dox) onset of transgene expression was detected in Lv. TII. CDD gene-modified K562 cells as well as in primary human CD34+ hematopoietic cells. Importantly, in both cell models low background transgene expression was observed in the absence of Dox. Functionality of Dox-inducible hCDD expression was demonstrated by> 10-fold increase in cytosine arabinoside (1-β-d-arabinofuranosylcytosine, Ara-C) resistance of Lv. TII. CDD-transduced K562 cells. In addition, Lv. TII. CDD-transduced CD34+-derived myeloid cells were protected from up to 300 n m Ara-C (control affected from 50 n m onwards). These data clearly demonstrate the suitability of our self-inactivating lentiviral vector to induce robust, tightly regulated transgene expression in human hematopoietic cells with minimal background activity and highlight the potential of our construct in myeloprotective gene therapy strategies.
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影响因子:
6.4
作者:
R. Momparler;N. Eliopoulos;V. Bovenzi;S. Létourneau;M. Greenbaum;D. Cournoyer
通讯作者:
D. Cournoyer
影响因子:
11.2
作者:
Milsom MD;Jerabek-Willemsen M;Harris CE;Schambach A;Broun E;Bailey J;Jansen M;Schleimer D;Nattamai K;Wilhelm J;Watson A;Geiger H;Margison GP;Moritz T;Baum C;Thomale J;Williams DA
通讯作者:
Williams DA
影响因子:
12.4
作者:
Kafri, T;van Praag, H;Verma, IM
通讯作者:
Verma, IM
影响因子:
5.4
作者:
Reuss, Simone;Sebestyen, Zsolt;Heinz, Niels;Loew, Rainer;Baum, Christopher;Debets, Reno;Uckert, Wolfgang
通讯作者:
Uckert, Wolfgang
影响因子:
12.4
作者:
E. Vigna;Mario Amendola;F. Benedicenti;A. Simmons;A. Follenzi;L. Naldini
通讯作者:
L. Naldini