详细信息
4-二茂铁甲酰氧基-2,2,6,6-四甲基哌啶氮氧自由基对活性氧的清除作用
Scavenging Effects of 4-Ferrocenecarboxyl-2,2,6,6-Tetramethylpiperidine-1-Oxyl on Reactive Oxygen Species
文献类型:期刊文献
中文题名:4-二茂铁甲酰氧基-2,2,6,6-四甲基哌啶氮氧自由基对活性氧的清除作用
英文题名:Scavenging Effects of 4-Ferrocenecarboxyl-2,2,6,6-Tetramethylpiperidine-1-Oxyl on Reactive Oxygen Species
作者:吴颖[1];丁昌明[1];缪乐德[1];袁彗慧[2];蓝闽波[1]
机构:[1]华东理工大学分析测试中心;[2]华东理工大学超细材料制备与应用教育部重点实验室,上海200237
年份:2007
卷号:42
期号:18
起止页码:1380
中文期刊名:中国药学杂志
外文期刊名:Chinese Pharmaceutical Journal
收录:CSTPCD;;Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;PubMed;
基金:国家自然科学基金资助项目(20446001);科技部国际合作项目(0424);上海市科委国际合作项目(045207044)
语种:中文
中文关键词:4-二茂铁甲酰氧基-2,2,6,6-四甲基哌啶氮氧自由基;活性氧;超氧阴离子自由基;超氧化物歧化酶;过氧化氢酶
外文关键词:4-ferrocenecarboxyl-2,2,6,6-tetramethyl piperidine -1-oxyl ; reactive oxygen species ; superoxide radical ; superoxide dismutase ; catalase
摘要:目的研究一种新型稳定的4-二茂铁甲酰氧基-2,2,6,6-四甲基哌啶氮氧自由基(FC-TEMPO)对活性氧的清除作用。方法用氯化硝基四氮唑蓝(NBT)还原法研究FC-TEMPO对超氧阴离子自由基(O2.-)的清除能力;用流式细胞仪和分光光度法研究FC-TEMPO对95-D肺癌细胞内活性氧、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的影响,同时采用噻唑蓝(MTT)法测定该化合物对癌细胞活力的影响。结果FC-TEMPO在体外能有效清除O2.-阴离子,并抑制肺癌细胞的增殖;同时该化合物能使95-D肺癌细胞内的活性氧含量下降,SOD和CAT酶的活性上升。结论通过体外和癌细胞实验表明,FC-TEMPO具有良好的清除活性氧的能力,并可能通过这种方式杀伤癌细胞。
OBJECTIVE To study the scavenging effects of 4-ferrocenecarboxyl-2,2,6,6-tetramethylpiperidine-l-oxyl ( FC-TEM- PO) as a novel stable nitroxide derivative on reactive oxygen species (ROS). METHODS The scavenging activity for O2^- of FC TEMPO was assayed by the reduction of nitroblue tetrazolium (NBT) ; The effects of FC-TEMPO on ROS, superoxide dismutase (SOD) and catalase (CAT) activity in 95-D lung carcinoma cells were investigated using flow cytometry and spectrophotometry method; the cancer cells proliferation was measured by MTF assay. RESULTS FC-TEMPO effectively scavenged O2^-. Moreover, it significantly inhibited the viability of 95-D cells. This compound reduced the level of ROS, increased SOD and CAT activity in cancer cells. CONCLUSION FC-TEMPO possessed the significant scavenging activity for ROS in different system, and it exerted cytotoxic effects on 95-D cells by the disturbance of the free radical balance in cells.
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