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首页> 外文期刊>Mutation research. Genetic toxicology testing >Effect of Clostridium perfringens-derived wound healing substance as compared with epidermal growth factor on the growth and morphological transformation of BALB/3T3 A31-1-1 cells
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Effect of Clostridium perfringens-derived wound healing substance as compared with epidermal growth factor on the growth and morphological transformation of BALB/3T3 A31-1-1 cells

机译:与表皮生长因子相比,产气荚膜梭菌来源的伤口愈合物质对BALB / 3T3 A31-1-1细胞生长和形态转化的影响

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摘要

Clostridium perfringens-derned wound-healing substance (WHS), having growth-stimulating activity, was examined to determine its effect on the growth and morphological transformation of BALB/3T3 A31-1-1 cells. WHS accelerated the cell growth at the exponential growth phase, shortening the doubling time by 8-18%. The maximum cell density of the treated cultures was slightly higher than that of the control culture, and the cell number decreased in the same way as the control cells did. On the other hand, the cells treated with epidermal growth factor (EGF) or insulin showed growth rates similar to that of the control cells during the exponential growth phase, and after the control cells attained the maximum cell number, the number of the treated cellscontinued to increase gradually for more than 4 days and then decreased. Under the experimental conditions of the two-stage transformation assay, application of WHS at the tumor-initiation or promotion stage did not accelerate the formation of transformed foci. Although treatment with EGF at the initiation stage induced no enhancement, marked enhancement of morphological transformation was observed in the treatment at the promotion stage. These results indicate that the mode of action between WHS and EGF or insulin is different on the growth-stimulating activity and morphological transformation of BALB/3T3 A31-1-1 cells.
机译:检查具有产气梭菌的产气荚膜梭菌伤口愈合物质(WHS),以确定其对BALB / 3T3 A31-1-1细胞的生长和形态转化的影响。 WHS在指数生长期加速了细胞的生长,使倍增时间缩短了8-18%。处理的培养物的最大细胞密度略高于对照培养物,并且细胞数目以与对照细胞相同的方式减少。另一方面,用表皮生长因子(EGF)或胰岛素处理的细胞在指数生长期显示出与对照细胞相似的生长速率,并且在对照细胞达到最大细胞数后,继续处理的细胞数逐渐增加超过4天,然后下降。在两阶段转化试验的实验条件下,在肿瘤起始或促进阶段应用WHS不会加速转化灶的形成。尽管在起始阶段用EGF治疗未引起增强,但是在促进阶段的治疗中观察到形态转化的显着增强。这些结果表明,WHS与EGF或胰岛素之间的作用方式在刺激BALB / 3T3 A31-1-1细胞的生长活性和形态转化上是不同的。

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