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Author:

赵丽娇 (赵丽娇.) (Scholars:赵丽娇) | 任婷 (任婷.) | 白宝清 (白宝清.) | 张然 (张然.) | 钟儒刚 (钟儒刚.) (Scholars:钟儒刚)

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CQVIP PKU CSCD

Abstract:

司莫司汀是重要的抗癌烷化剂,其抗癌机制与导致DNA股间交联有关。使用荧光法和高效液相色谱-电喷雾串联质谱联用(HPLC-ESI-MS/MS)法对司莫司汀导致的λDNA交联率进行了测定。结果表明:药物浓度为2,4,8和16 mmol/L时,荧光方法测得的最大交联率分别为8.81%,11.17%,17.61%,和23.39%;HPLC-ESI-MS/MS方法测得的最大交联率为每107个碱基对中分别含有138,256,378和433个dG-dC交联。通过比较,荧光法测得的是交联DNA双链的含量,而HPLC-ESI-MS/MS法测得的是实际交联碱基对的个数,后者更能从本质上揭示交联率的变化规律。两种方...

Keyword:

DNA股间交联 氯乙基亚硝基脲 高效液相色谱-电喷雾串联质谱 司莫司汀 荧光

Author Community:

  • [ 1 ] 北京工业大学生命科学与生物工程学院

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Source :

分析化学

Year: 2011

Issue: 04

Volume: 39

Page: 476-480

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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