國家衛生研究院 NHRI:Item 3990099045/12923
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    题名: A doxycycline-inducible C17.2 neural stem cell-based combination of differentiation and suicide gene therapy for anin vitrotumorigenic C6 glioma model
    作者: Chu, IR;Pan, RL;Yang, CS;Wu, LC
    贡献者: Institute of Biomedical Engineering and Nanomedicine
    摘要: Neural stem cell (NSC)-based gene therapies have been recently developed as effective strategies for treating brain tumors through inherent tumor tropism. However, this methodology has two considerable challenges: preventing NSCs from dying from the therapeutic agents encoded by their equipped genes before reaching tumor sites and the clearance of exogenous NSCs after therapeutic treatments. For these purposes, we established a novel doxycycline-inducible retroviral plasmid pTRE3G-TKGFP. A herpes simplex type 1 thymidine kinase (HSV1TK)-green fluorescent protein (GFP) fusion protein coding sequence was integrated into the multiple cloning site II (MCS II) of the pQcXIX vector, and the CMV IE promoter (P-CMV IE) of pQcXIX was replaced with the doxycycline-inducible TRE3G promoter (P-TRE3G). We then cloned the coding sequences of tumor necrosis factor-alpha (TNF-alpha), interleukin 6 (IL-6) and soluble interleukin 6 receptor (sIL-6R) into MCS I to combine HSV1TK (TK)/ganciclovir (GCV)-based suicide gene therapy against tumorigenic C6 glioma cells. TNF-alpha, IL-6 and sIL6R could efficiently induce tumorigenic C6 glioma cell differentiation, resulted in down-regulating the cell proliferation rate and the tumorigenicity of glioma cells and up-regulating the production of differentiation markers, such as connexin-43. Furthermore, gap junctions could enhance the bystander effect in suicide gene therapy. Consequently, we found that the retroviral plasmid transfected NSCs exerted stronger remedial effects on tumorigenic C6 glioma cells through the combination of differentiation and suicide gene therapy than by suicide gene therapy alone. This study is also the first case applying NSCs to conduct the combination of differentiation and TK/GCV-based suicide gene therapy on glioma cells.
    日期: 2020-01
    關聯: Biotechnology and Biotechnological Equipment. 2020 Jan;34(1):986-998.
    Link to: http://dx.doi.org/10.1080/13102818.2020.1804449
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1310-2818&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000565344100001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85090114232
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