Tetracysteine as a reporter for gene therapy
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Updated: Jun 14, 2026

Single-molecule Imaging of Gene Regulation In vivo Using Cotranslational Activation by Cleavage (CoTrAC)
Published on: March 15, 2013
Chen-Yu Xu1, Ying Gu, Wang-Heng Hou
1National Institute of Diagnostics and Vaccine Development for Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen 361005, Fujian, China. Xuchenyu@xmu.edu.cn
Objective:
To study the feasibility of using tetracysteine (TC) reporter in gene therapy.
Methods:
Effects of TC reporter and conventional reporter genes encoding green fluorescence protein (GFP) and luciferase (Luc) on expression and function of the therapeutic gene MGMT(P140K) were compared. Cytotoxicity and drug resistance were studied by Western blot. TC reporter used in therapy was analyzed by flow cytometry (FCM).
Results:
The TC reporter had no toxicity to cells and neither affected the expression or activity of therapeutic gene as compared to GFP and Luc. TC could be used in blood sample detection.
Conclusion:
TC is a new kind of reporter gene for lentiviral vector in future gene therapy.
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