相关实验视频
Updated: Jul 16, 2025

Cellular Toxicity of Nanogenomedicine in MCF-7 Cell Line: MTT assay
Published on: April 3, 2009
海洋天然化合物 (Neviotin A) 通过触发MCF-7细胞中的转录基因变异和细胞死亡来显示抗癌效果
Quaiser Saquib1, Stefan Schwaiger2, Mostafa Alilou2
1Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
来自Haliclona fascigera的一种海洋海绵提取物 (样本C) 对人类乳腺癌细胞表现出抗癌作用. 它通过触发亡来诱导细胞死亡,并将Neviotin A确定为药物开发的强有力的化合物.
科学领域:
- 海洋天然产品 化学 化学
- 癌症生物学 癌症生物学
- 药理学 药理学 是一个学科.
背景情况:
- 海洋海绵是生物活性化合物的丰富来源,具有潜在的治疗应用.
- 乳腺癌仍然是导致死亡的主要原因,需要新的治疗策略.
- 了解自然化合物的作用机制对于药物发现至关重要.
研究的目的:
- 在人类乳腺腺癌 (MCF-7) 细胞中研究一种海洋海绵提取物 (Haliclona fascigera,样本C) 的抗癌机制.
- 为了确定特定的分子通路和化合物,负责观察到的抗癌活性.
主要方法:
- 细胞活力测定 (MTT,中性红色吸收) 来评估增殖.
- 流式细胞测量用于分析活性氧物种 (ROS),氧化 (NO),线粒体潜力和亡.
- 定量PCR (qPCR) 阵列和免疫光检查与亡途径相关的基因和蛋白质表达.
主要成果:
- 样本C显著降低了MCF-7细胞的增殖.
- 治疗诱导了ROS,NO的产生,线粒体功能障碍和亡.
- 与亡相关的关键基因 (BIRC5,BCL2L2,TNFRSF1A) 和蛋白质 (p53,bax,bcl2,MAPKPK2,PARP-1,caspase-3) 被调节.
- 生物试验指导的分化确定了Neviotin A作为最有效的化合物,诱导显著的细胞死亡.
结论:
- 海洋海绵提取物Haliclona fascigera对乳腺癌细胞表现出显著的抗癌活性.
- 提取物通过涉及ROS,NO和线粒体功能障碍的复杂信号通路诱导亡.
- 尼维A是一种从这种提取物中获得的有前途的药理活性化合物,用于潜在的乳腺癌药物开发.
更多相关视频
08:19Transfer of Manipulated Tumor-associated Neutrophils into Tumor-Bearing Mice to Study their Angiogenic Potential In Vivo
Published on: July 20, 2019
19:44Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen
Published on: May 30, 2012
相关概念视频
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Mutagenicity and Carcinogenicity
Targeted Cancer Therapies
There are several types of targeted therapies against...
Mechanisms of Retrovirus-induced Cancers
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
MicroRNAs