期刊
CELL CYCLE
卷 13, 期 2, 页码 220-226出版社
LANDES BIOSCIENCE
DOI: 10.4161/cc.26985
关键词
near-infrared fluorescence; iRFP cell number quantification; in vivo; cancer
类别
资金
- Cancer Research UK
- MRC
- Cancer Research UK [18274] Funding Source: researchfish
- Medical Research Council [1097363] Funding Source: researchfish
GFP and luciferase are used extensively as markers both in vitro and in vivo although both have limitations. The utility of GFP fluorescence is restricted by high background signal and poor tissue penetrance. Luciferase throughput is limited in vitro by the requirement for cell lysis, while in vivo, luciferase readout is complicated by the need for substrate injection and the dependence on endogenous ATP. Here we show that near-infrared fluorescent protein in combination with widely available near-infrared scanners overcomes these obstacles and allows for the accurate determination of cell number in vitro and tumor growth in vivo in a high-throughput manner and at negligible per-well costs. This system represents a significant advance in tracking cell proliferation in tissue culture as well as in animals, with widespread applications in cell biology.
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