Abd-Rabou Ahmed A, A Zoheir Khairy M, Kishta Mohamed S, Shalby Aziza B, Ezzo Mohamed I
Hormones Department, Medical Research Division, National Research Centre, 12622 Cairo, Egypt. Email:
Asian Pac J Cancer Prev. 2016 Nov 1;17(11):4929-4933. doi: 10.22034/APJCP.2016.17.11.4929.
Cancer, a worldwide epidemic disease with diverse origins, involves abnormal cell growth with the potential to invade other parts of the body. Globally, it is the main cause of mortality and morbidity. To overcome the drawbacks of the commercially available chemotherapies, natural products-loaded nano-composites are recommended to improve cancer targetability and decrease the harmful impact on normal cells. This study aimed at exploring the anti-cancer impacts of Moringa oleifera seed oil in its free- (MO) and nano-formulations (MOn) through studying whether it mechanistically promotes mitochondrial apoptosis-mediating cell death. Mitochondrial-based cytotoxicity and flow cytometric-based apoptosis analyses were performed on cancer HepG2, MCF7, HCT 116, and Caco-2 cell lines against normal kidney BHK-21 cell line. The present study resulted that MOn triggered colorectal cancer Caco-2 and HCT 116 cytotoxicity via mitochondrial dysfunction more powerful than its free counterpart (MO). On the other side, MOn and MO remarkably induces HCT 116 mitochondrial apoptosis, while sparing normal BHK-21 cells with minimal cytotoxic effect. The present results concluded that nano-micelle of Moringa oleifera seed oil (MOn) can provide a novel therapeutic approach for colorectal and breast cancers via mitochondrial-mediated apoptosis, while sparing normal and even liver cancer cells a bit healthy or with minimal harmful effect. Intriguingly, MOn induced breast cancer not hepatocellular carcinoma cell death.
癌症是一种起源多样的全球性流行病,涉及异常细胞生长,并有可能侵袭身体的其他部位。在全球范围内,它是导致死亡和发病的主要原因。为了克服市售化疗方法的缺点,建议使用负载天然产物的纳米复合材料来提高癌症靶向性,并减少对正常细胞的有害影响。本研究旨在通过研究辣木籽精油(MO)及其纳米制剂(MOn)是否能通过促进线粒体凋亡介导细胞死亡的机制来探索其抗癌作用。对肝癌HepG2、乳腺癌MCF7、结直肠癌HCT 116和结肠腺癌Caco-2细胞系以及正常肾BHK-21细胞系进行了基于线粒体的细胞毒性和基于流式细胞术的凋亡分析。本研究结果表明,MOn通过线粒体功能障碍引发结直肠癌Caco-2和HCT 116细胞毒性,其作用比游离形式的MO更强。另一方面,MOn和MO显著诱导HCT 116细胞线粒体凋亡,同时对正常BHK-21细胞的细胞毒性最小。目前的结果表明,辣木籽精油纳米胶束(MOn)可以通过线粒体介导的凋亡为结直肠癌和乳腺癌提供一种新的治疗方法,同时使正常细胞甚至肝癌细胞保持相对健康或产生最小的有害影响。有趣的是,MOn诱导的是乳腺癌细胞死亡而非肝癌细胞死亡。