Growth suppression and induction of heat-shock protein-70 by 9-cis B-carotene in cervical dysplasia-derived cells

被引:16
作者
Toba, T
Shidoji, Y
Fujii, J
Moriwaki, H
Muto, Y
Suzuki, T
Ohishi, N
Yagi, K
机构
[1] INST APPL BIOCHEM, MITAKA, TOKYO 50501, JAPAN
[2] GIFU UNIV, SCH MED, DEPT INTERNAL MED 1, GIFU 500, JAPAN
关键词
9-cis beta-carotene; all-trans beta-carotene; HSP70; apoptosis; chemoprevention; cervical dysplasia;
D O I
10.1016/S0024-3205(97)00566-3
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
The aim of the present study was to determine to what extent 9-cis beta-carotene, one of the most abundant naturally-occurring cis-isomers of beta-carotene, can inhibit the growth of cervical dysplasia-derived cells in comparison with all-trans beta-carotene. We found that 9-cis beta-carotene was dose-dependently more effective than all-trans beta-carotene. Both carotenes induced the intracellular accumulation of heat-shock protein-70 (HSP70), and the treated cells showed morphological changes indicative of apoptosis. The results of the present study strongly suggest that the induction of HSP70 by beta-carotene might be involved in beta-carotene-mediated suppression of the cell growth through apoptosis.
引用
收藏
页码:839 / 845
页数:7
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