生物活性 | |||
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描述 | Bromodeoxyuridine (BrdUrd), a thymidine analogue incorporated into DNA, can be quantified by fluorescent or chromophoric quenching of dyes bound to DNA or with antibodies to BrdUrd[3]. Bromodeoxyuridine, even at a level of substitution into newly mad DNA of 95%, has no effect on the 5-methylcytosine content of DNA. At all levels of bromodeoxyuridine substitution, highly repetitive DNA has slightly more 5-methylcytosine (3.0% of total cytosine) than does single copy DNA or moderately repetitive DNA (2.3%)[4]. A single, brief in vitro exposure to BrdU induces a profound and sustained reduction in the proliferation rate of all cancer cells examined. Cells do not die but variably up-regulate some senescence-associated proteins as they accumulate in the G1 phase of the cell cycle. Bromodeoxyuridine also impairs the proliferative capacity of primary tumor-initiating human glioma cells and may therefore represent a means of targeting cancer stem cells[5]. Bromodeoxyuridine (BrdU) is widely used in immunology to detect cell division, and several mathematical models have been proposed to estimate proliferation and death rates of lymphocytes from BrdU labelling and de-labelling curves[6]. The BrdU-dependency of arrest in the G2 phase can be used as a sensitive cell biological assay to detect DNA damage elicited by oxygen free radicals[7]. |
临床研究 | |||||
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NCT号 | 适应症或疾病 | 临床期 | 招募状态 | 预计完成时间 | 地点 |
NCT03371134 | - | Not yet recruiting | July 26, 2020 | - | |
NCT00003405 | Leukemia | Phase 2 | Unknown | - | United States, Illinois ... 展开 >> Cook County Hospital Chicago, Illinois, United States, 60612-9985 Rush Cancer Institute Chicago, Illinois, United States, 60612 Angelo P. Creticos, M.D. Cancer Center Chicago, Illinois, United States, 60657 Rush-Riverside Cancer Center Kankakee, Illinois, United States, 60901 收起 << |
NCT02576145 | - | Completed | - | - |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
3.26mL 0.65mL 0.33mL |
16.28mL 3.26mL 1.63mL |
32.56mL 6.51mL 3.26mL |
参考文献 |
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