Department of Biochemistry, Microbiology and Biotechnology, Faculty of Science and Agriculture, University of Limpopo, Turfloop Campus, Private Bag X1106, Sovenga, Limpopo 0727, South Africa.
Evid Based Complement Alternat Med. 2016;2016:5342082. doi: 10.1155/2016/5342082. Epub 2016 Apr 27.
Cervical cancer is among the most prevalent forms of cancer in women worldwide. Diospyros lycioides was extracted using hexane, ethyl acetate, acetone, and methanol and finger print profiles were determined. The leaf material was tested for the presence of flavonoids, tannins, saponins, terpenoids, and cardiac glycosides using standard chemical methods and the presence of flavonoids and phenolics using thin layer chromatography. The total phenolic content was determined using Folin-Ciocalteu procedure. The four extracts were tested for antibacterial activity using bioautography against Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa, and Escherichia coli. The acetone extract with the highest number of antibacterial and antioxidant compounds was assessed for its cytotoxicity on BUD-8 cells using the real-time xCELLigence system and its potential effects on metastatic cervical cancer (HeLa) cell migration and invasion were assessed using wound healing migration and invasion assays. The leaf extract tested positive for flavonoids, tannins, and terpenoids while the four different extracts tested in the antimicrobial assay contained constituents active against one or more of the organisms tested, except E. coli. The cytotoxicity of the acetone extract in real-time was concentration-dependent with potent ability to suppress the migration and invasion of HeLa cells. The finding demonstrates the acetone extract to contain constituents with antibacterial and antimetastatic effects on cervical cancer cells.
宫颈癌是全球女性最常见的癌症之一。采用正己烷、乙酸乙酯、丙酮和甲醇提取了乌柿,并确定了其指纹图谱。采用标准化学方法检测叶材料中是否存在类黄酮、单宁、皂苷、萜类化合物和强心苷,并采用薄层色谱法检测类黄酮和酚类化合物的存在。采用福林-考尔法测定总酚含量。采用生物自显影法对金黄色葡萄球菌、粪肠球菌、铜绿假单胞菌和大肠杆菌进行抗菌活性测试,比较四种提取物。具有最多数量的抗菌和抗氧化化合物的丙酮提取物,使用实时 xCELLigence 系统评估其对 BUD-8 细胞的细胞毒性,并使用划痕愈合迁移和侵袭测定评估其对转移性宫颈癌(HeLa)细胞迁移和侵袭的潜在影响。叶提取物检测出类黄酮、单宁和萜类化合物呈阳性,而在抗菌测定中测试的四种不同提取物均含有对一种或多种测试生物有效的成分,大肠杆菌除外。丙酮提取物在实时中的细胞毒性呈浓度依赖性,具有强烈抑制 HeLa 细胞迁移和侵袭的能力。研究结果表明,丙酮提取物含有对宫颈癌细胞具有抗菌和抗转移作用的成分。