Department of Biomedical Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy.
Department of Chemical and Geological Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy.
Molecules. 2022 Dec 14;27(24):8897. doi: 10.3390/molecules27248897.
A series of 6- and 6,8-halocoumarin derivatives have been investigated as potential antiproliferative compounds against a panel of tumor and normal cell lines. Cytotoxic effects were determined by the MTT method. To investigate the potential molecular mechanism involved in the cytotoxic effect, apoptosis assay, cell cycle analysis, reactive oxygen species (ROS), and reduced glutathione analysis were performed. Among the screened compounds, coumarins 6,8-dibromo-2-oxo-2-chromene-3-carbonitrile and 6,8-diiodo-2-oxo-2-chromene-3-carbonitrile exhibited the most antiproliferative effect in thyroid cancer-derived cells TPC-1. The apoptosis assay showed that both and induced apoptosis in TPC-1 thyroid cancer cells. According to these experiments, both coumarins induced a slight increase in TPC-1 cells in the G2/M phase and a decrease in the S phase. A significant increase in ROS levels was observed in TPC-1 treated with diiodocoumarin , while the dibromocoumarin induced a decrease in ROS in a dose and time-dependent manner.
已经研究了一系列 6- 和 6,8-卤代香豆素衍生物,作为针对一系列肿瘤和正常细胞系的潜在抗增殖化合物。通过 MTT 法测定细胞毒性作用。为了研究细胞毒性作用涉及的潜在分子机制,进行了凋亡测定、细胞周期分析、活性氧(ROS)和还原型谷胱甘肽分析。在所筛选的化合物中,香豆素 6,8-二溴-2-氧代-2-色烯-3-甲腈 和 6,8-二碘-2-氧代-2-色烯-3-甲腈在甲状腺癌细胞 TPC-1 中表现出最强的抗增殖作用。凋亡测定表明,和都诱导 TPC-1 甲状腺癌细胞凋亡。根据这些实验,两种香豆素均诱导 TPC-1 细胞在 G2/M 期略有增加,在 S 期减少。用二碘代香豆素处理 TPC-1 时,观察到 ROS 水平显著增加,而二溴代香豆素则以剂量和时间依赖的方式诱导 ROS 减少。