Tightly regulated and homogeneous transgene expression in human adipose-derived mesenchymal stem cells by lentivirus with tet-off system.
Tightly regulated and homogeneous transgene expression in human adipose-derived mesenchymal stem cells by lentivirus with tet-off system.
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DOI:
10.1371/journal.pone.0066274
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Hayakawa T
中科院分区:
文献类型:
--
作者:
Moriyama H;Moriyama M;Sawaragi K;Okura H;Ichinose A;Matsuyama A;Hayakawa T
Genetic modification of human adipose tissue–derived multilineage progenitor cells (hADMPCs) is highly valuable for their exploitation in therapeutic applications. Here, we have developed a novel single tet-off lentiviral vector platform. This vector combines (1) a modified tetracycline (tet)-response element composite promoter, (2) a multi-cistronic strategy to express an improved version of the tet-controlled transactivator and the blasticidin resistance gene under the control of a ubiquitous promoter, and (3) acceptor sites for easy recombination cloning of the gene of interest. In the present study, we used the cytomegalovirus (CMV) or the elongation factor 1 α (EF-1α) promoter as the ubiquitous promoter, and EGFP was introduced as the gene of interest. hADMPCs transduced with a lentiviral vector carrying either the CMV promoter or the EF-1α promoter were effectively selected by blasticidin without affecting their stem cell properties, and EGFP expression was strictly regulated by doxycycline (Dox) treatment in these cells. However, the single tet-off lentiviral vector carrying the EF-1α promoter provided more homogenous expression of EGFP in hADMPCs. Intriguingly, differentiated cells from these Dox-responsive cell lines constitutively expressed EGFP only in the absence of Dox. This single tet-off lentiviral vector thus provides an important tool for applied research on hADMPCs.
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影响因子:
14.9
作者:
EMERMAN, M;TEMIN, HM
通讯作者:
TEMIN, HM
影响因子:
3
作者:
Okura, Hanayuki;Komoda, Hiroshi;Matsuyama, Akifumi
通讯作者:
Matsuyama, Akifumi
影响因子:
4.5
作者:
Ikegame, Yuka;Yamashita, Kentaro;Iwama, Toru
通讯作者:
Iwama, Toru
影响因子:
37.8
作者:
Rehman, J;Traktuev, D;March, KL
通讯作者:
March, KL
影响因子:
--
作者:
Moriyama M;Moriyama H;Ueda A;Nishibata Y;Okura H;Ichinose A;Matsuyama A;Hayakawa T
通讯作者:
Hayakawa T