In vitro potentiation of BCNU activity in rat brain tumour cells pretreated with misonidazole.

In vitro potentiation of BCNU activity in rat brain tumour cells pretreated with misonidazole.
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用米索硝唑预处理的大鼠脑肿瘤细胞中 BCNU 活性的体外增强。

DOI:
10.1038/bjc.1984.123
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发表时间:
1984
影响因子:
8.8
通讯作者:
Wheeler,KT
Wheeler,KT
中科院分区:
医学1区
文献类型:
--
作者:
Siemann,DW;Wolf,K;Morrissey,S;Wheeler,KT

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化学辐射增敏剂如米索硝唑(MISO)增强某些化疗剂的能力已被认识了几年。其活性在体外和体内均被敏化剂最有效地增强的抗肿瘤剂包括环磷酰胺、美法仑和亚硝基脲(综述参见Millar,1982; McNally,1982; Siemann,1982,1984)。体外化学增强实验主要集中在在用空气中的化疗剂处理之前,在无氧条件下将细胞暴露于敏化剂(通常持续2- 4小时的时间)。这些研究,通常被称为”MISO预孵育实验”,已在尝试开发化学增强现象的作用机制中进行(Brown,1982)。已经以这种方式广泛研究了几种抗肿瘤药物;特别是烷化剂美法仑(Stratford等人,1980; Roizin-Towle & Hall,1981; Taylor等人,1982年)。亚硝基脲和MISO的体外组合,特别是那些评价缺氧细胞预孵育作用的组合,受到了更大的限制(Twentyman,1980,1982),尽管当MISO加入到包含该抗肿瘤剂类别中的一些化合物的体内治疗中时可以获得大的增强比(McNally,1982; Siemann,1982,1984)。亚硝基脲是治疗人类恶性肿瘤,特别是脑肿瘤的一类重要化疗药物(Levin & Wilson,1976)。因此,鉴于当某些亚硝基脲和MISO组合时观察到的显著增强和增加的治疗益处,开始实验以评估利用这种组合的MISO的可能性。
The ability of chemical radiation sensitizers such as misonidazole (MISO) to potentiate certain chemotherapeutic agents has been recognized for several years. Anti-tumour agents whose activities are most effectively enhanced both in vitro and in vivo by sensitizers include cyclophosphamide, melphalan and the nitrosoureas (for review see Millar, 1982; McNally, 1982; Siemann, 1982, 1984). In vitro experiments of chemopotentiation have concentrated primarily on exposing cells to the sensitizer in the absence of oxygen (usually for a period of 2-4h) prior to treatment with the chemotherapeutic agent in air. These investigations, usually referred to as" MISO pre-incubation experiments" have been performed inattempts to develop mechanisms of action for the phenomenon of chemopotentiation (Brown, 1982). Several anti-tumour drugs have been investigated extensively in this manner; particularly the alkylating agent melphalan (Stratford et al., 1980; Roizin-Towle & Hall, 1981; Taylor et al., 1982). Invitro combinations of nitrosoureas and MISO, especially those evaluating the hypoxic cell pre-incubation effects, have been far more limited (Twentyman, 1980, 1982) despite the large enhancement ratios which can be obtained when MISO is added to in vivo therapies incorporating some of the compounds in this anti-tumour agent class (McNally, 1982; Siemann, 1982, 1984). The nitrosoureas represent an important class of chemotherapeutic agents in the treatment of human malignancies, particularly brain tumours (Levin & Wilson, 1976). Consequently, in view of the substantial potentiation and increased therapeutic benefits observed when certain nitrosoureas and MISO are combined, experiments were initiated to evaluate the possibility of utilizing such combined
细小病毒蛋白核积累的可能序列。
DOI: 10.1016/0309-1651(86)90010-x
发表时间: 1986
期刊: Cell biology international reports
影响因子: --
作者:
M. Lederman;K. C. Chen;E. R. Stout;R. Bates
通讯作者: R. Bates
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DOI: --
发表时间: 1987
影响因子: 3.8
作者:
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DOI: --
发表时间: 1983
期刊: Nucleic Acids Res.
影响因子: --
作者:
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DOI: --
发表时间: 1985
影响因子: 5.4
作者:
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通讯作者: M. Collett
DOI: 10.1038/nbt0885-715
发表时间: 1985
期刊: Bio/Technology
影响因子: --
作者:
S. Halling;Susan Smith
通讯作者: Susan Smith