In Vitro Studies of Anticarcinogenic Protease Inhibitors

In Vitro Studies of Anticarcinogenic Protease Inhibitors
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抗癌蛋白酶抑制剂的体外研究

DOI:
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发表时间:
1993
期刊:
影响因子:
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通讯作者:
A. Kennedy
A. Kennedy
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作者:
A. Kennedy

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几种不同类型的试剂已经被证明可以在体外改变转化细胞的产量。我们观察到某些蛋白酶抑制剂具有以非常显著的方式抑制辐射和化学诱导的体外恶性转化的能力(Kennedy和Little,1978,1980a,1981b;Littler等人,1979;Kennedy和Weichselbaum,1981;Kennedy,1982,1984a,b,1985a,1988,1990a;Yavelow等人,1983,1985;Baturay和Kennedy,1986;Billings等人,1987a,1989)。其他几个研究人员也观察到一些蛋白酶抑制剂可以有效地抑制体外转化(Kuroki和Drevon,1979;Borek等人,1979;DiPaolo等人,1980;Popescu等人,1980;Sun等人,1980)。(1988年)。研究表明,蛋白酶抑制剂在体外抑制转化的研究利用了几种不同的模型体系,几种不同的致癌物(包括X射线、紫外光、化学致癌物和类固醇激素作为诱导剂)和几种不同的促进剂(或辅癌物质)(Kennedy,1984a),如表I和表II所示(图1所示为含有转化灶/细胞的培养皿)。这些结果表明,蛋白酶抑制剂能够抑制不同致癌物(有或没有促进或致癌)在几个不同细胞系统中诱导的相似过程。与我们研究的许多其他类别的可能的人类癌症化学预防药物所观察到的边缘效应相反,蛋白酶抑制剂在体外以非常显著的方式抑制信息的能力是不寻常的(Kennedy,1984a,b,1985b,1986;Kennedy等人,1984b)。许多其他潜在的化学预防药物不仅其有效性微乎其微,而且它们中的大多数需要以有毒或接近毒性的水平添加到培养物中以观察任何效果[例如,见维生素E的有效水平(Radner和Kennedy,1986)]。相比之下,蛋白酶抑制剂在非常低的浓度下是有效的。
Several different types of agents have been shown to modify the yield of transformed cells in vitro. We have observed that certain protease inhibitors have the ability to suppress radiation- and chemical-induced malignant transformation in vitro in a highly significant fashion (Kennedy and Little, 1978, 1980a, 1981b; Littler al., 1979; Kennedy and Weichselbaum, 1981; Kennedy, 1982, 1984a, b, 1985a, 1988, 1990a; Yavelow etal., 1983, 1985; Baturay and Kennedy, 1986; Billings et al., 1987a, 1989). Several other investigators have also observed that some protease inhibitors can effectively suppress transformation in vitro (Kuroki and Drevon, 1979; Borek et al., 1979; DiPaolo et al., 1980; Popescu et al., 1980; Sun et al. 1988). The studies showing that protease inhibitors suppress transformation in vitro have utilized several different model systems, several different carcinogens (including x-radiation, UV light, chemical carcinogens, and steroid hormones as the inducing agents) and several different agents as promoters (or cocarcinogens) (reviewed in Kennedy, 1984a), as shown in Tables I and II (culture dishes containing transformed foci/cells are shown in Fig. 1). These results suggest that protease inhibitors are capable of suppressing similar processes induced by different carcinogens (with or without promotion or cocar-cinogenesis) in several different cell systems. Protease inhibitors have an unusual ability to suppress information in vitro in a highly significant manner, as opposed to the marginal effects observed for many other classes of possible human cancer chemopreventive agents which we have studied (Kennedy, 1984a,b, 1985b, 1986; Kennedy et al., 1984b). Not only are many other potential chemopreventive agents marginal in their effectiveness, but most of them need to be added to cultures at toxic or nearly toxic levels to observe any effect [e.g., see the effective levels of vitamin E (Radner and Kennedy, 1986)]. By comparison, protease inhibitors are effective at very low concentrations.
哺乳动物的 SOS 系统:一个错误类比的例子。
DOI: 10.3109/07357908509017500
发表时间: 1985
影响因子: 2.4
作者:
Rossman,TG;Klein,CB
通讯作者: Klein,CB
DOI: 10.1073/pnas.82.16.5395
发表时间: 1985-08
影响因子: 11.1
作者:
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通讯作者: J. Yavelow;M. Collins;Y. Birk;W. Troll;A. Kennedy
在 c-myc RNA 水平不增加的情况下,C3H 10T1/2 和 3T3 细胞的细胞周期进展。
DOI: 10.1093/carcin/9.1.17
发表时间: 1988
期刊: Carcinogenesis
影响因子: 4.7
作者:
Chang,JD;Kennedy,AR
通讯作者: Kennedy,AR
DOI: --
发表时间: 1982
期刊: Carcinogenesis; a comprehensive survey
影响因子: --
作者:
Little,JB;Kennedy,AR
通讯作者: Kennedy,AR
DOI: 10.1073/pnas.77.12.7262
发表时间: 1980-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
KENNEDY, AR;FOX, M;LITTLE, JB
通讯作者: LITTLE, JB