Cancer results from a series of molecular changes that alter the normal function of cells. Breast cancer is the second leading cause of cancer death in women. To develop novel anticancer agents, new series of chromen derivatives were synthesized and evaluated for their cytotoxic activity against human breast cancer cell lines. The growth inhibitory activities of synthesized hexahydrobenzo chromen-4-one were screened against six human cancer cell lines using an in vitro cell culture system (MTT assay). Fluorochrome staining (acridine orange/ethidium bromide double staining) and DNA fragmentation by the diphenylamine method were used to investigate the effects of most potent compounds on the process of apoptosis in breast cancer cell lines. To determine the mechanism of apoptosis, ROS and NOX production in treated breast cancer cells with compounds was evaluated. The cytotoxicity data of tested compounds demonstrate these compounds had varying degree of toxicity. Compound 7h was the most potent compound with IC50 = 1.8 ± 0.6 µg/mL against T-47D cell line. Analyses of the compounds treated (MCF-7, MDA-MB-231, and T-47D) cells by acridine orange/ethidium bromide double staining and DNA fragmentation by the diphenylamine method showed that the synthetic compounds induce apoptosis in the cells. A significant increase in ROS production was observed in T-47D cells treated with IC50 value of compound 7g. Incubation with IC50 value of synthetic compounds increased the NOX production in cell lines, especially T-47D cells. Our results show that most compounds have a significant anti-proliferative activity against six human cancer cell lines. The observations confirm that chromen derivatives have induced the cell death through apoptosis.
癌症是由一系列改变细胞正常功能的分子变化引起的。乳腺癌是女性癌症死亡的第二大原因。为了开发新型抗癌剂,我们合成了一系列新的色烯衍
生物,并评估了它们对人类乳腺癌
细胞系的细胞毒活性。利用体外
细胞培养系统(M
TT 试验)筛选了合成的六氢苯并色烯-4-酮对六种人类癌细胞株的生长抑制活性。采用荧光染色法(
吖啶橙/
溴化乙锭双重染色法)和
二苯胺法进行 DNA 断裂,以研究最强化合物对乳腺癌细胞株凋亡过程的影响。为了确定凋亡的机制,还评估了用化合物处理乳腺癌细胞时产生的 ROS 和 NOX。测试化合物的细胞毒性数据表明,这些化合物具有不同程度的毒性。化合物 7h 是对 T-47D 细胞株最有效的化合物,IC50 = 1.8 ± 0.6 µg/mL。通过
吖啶橙/
溴化乙锭双染色法和
二苯胺 DNA 断裂法对化合物处理过的细胞(MCF-7、
MDA-MB-231 和 T-47D)进行分析表明,合成化合物能诱导细胞凋亡。在用 IC50 值为 7g 的化合物处理 T-47D 细胞时,观察到 ROS 生成明显增加。用 IC50 值的合成化合物培养细胞株,尤其是 T-47D 细胞,会增加 NOX 的产生。我们的研究结果表明,大多数化合物对六种人类癌症细胞株具有显著的抗增殖活性。观察结果证实,
铬烯衍
生物可通过细胞凋亡诱导
细胞死亡。