氧化纳米颗粒诱导人类胰腺癌细胞的细胞死亡通过ROS驱动的基因组不稳定性和线粒体功能障碍
Hanan R H Mohamed1, Hagar Magdy2, Yusuf Elberry2
1Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt. hananeeyra@cu.edu.eg.
Scientific reports
|November 18, 2025
概括
氧化纳米颗粒 (Ca(OH) 2NP) 通过诱导亡和DNA损伤来杀胰腺癌细胞. 这些纳米粒子为胰腺癌提供了一个有希望的,选择性的治疗方法,对正常细胞的毒性最小.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 在瘤学瘤学.
背景情况:
- 胰腺癌的攻击性需要新的治疗策略.
- 目前的治疗方法有局限性,这推动了针对性治疗的研究.
- 基于纳米颗粒的方法,如Ca(OH) 2NP,由于生物相容性和瘤微环境调节,显示出潜力.
研究的目的:
- 为了评估Ca(OH)2NP对胰腺癌的治疗潜力.
- 评估Ca(OH)2NP对胰腺癌细胞活力和正常细胞的影响.
- 为了研究Ca(OH) 2NP对胰腺癌细胞的DNA完整性,线粒体功能,ROS生成和亡的影响.
主要方法:
- 硫胺B细胞毒性测定,以确定 PANC-1 和 OEC 细胞的 IC50 值.
- 对基因组DNA和线粒体膜完整性的评估.
- 测量反应性氧物种 (ROS) 的产生.
- 对亡诱导和关键基因表达的分析 (p53,ND3,BCL-2).
主要成果:
- () () 2NP对PANC-1细胞表现出度依赖的细胞毒性 (IC50=152.40μg/ml),对正常OEC的影响很小 (IC50=481.66μg/ml).
- 选择性指数为3.16,证实了对PANC-1细胞的优先毒性.
- (OH) 2NP诱导了过度的ROS生成,基因组不稳定性和线粒体损伤,通过p53和ND3上调和Bcl-2下调导致PANC-1细胞的亡.
结论:
- 酸 (Ca(OH) 2NP对胰腺癌细胞具有强大和选择性的细胞毒性.
- 该机制涉及ROS生成,DNA/线粒体损伤,以及诱导线粒体亡.
- 酸 (Ca) (OH) 2 (NP) 是胰腺癌的一种有前途的新型治疗药物,需要进一步研究.
关键词:
() (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 3 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 3 (OH) 2 (OH) 2 (OH) 2 (OH) 2 (OH) 3 (OH) 2 (OH) 2 (OH) 3DNA稳定性 DNA的稳定性线粒体的亡是线粒体的亡.在 PANC-1 细胞中.在 ROS 生产过程中,更多相关视频
09:36Isolated Pancreatic Islet Treatment and Apoptosis Measurement
Published on: May 2, 2025
816
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
19.1K
相关概念视频
01:30Apoptosis
14.0K
Apoptosis is a combination of two Greek words, 'apo' and 'ptosis,' meaning separation and falling off, respectively. Hippocrates used this word to describe gangrene, which was caused due to bandaging of fractured bones. Apoptosis was distinguished from necrosis in 1970 when John Kerr reported observations of morphological changes occurring during apoptosis. During one experiment, he observed that the disruption of blood supply to the liver tissue resulted in a size...
14.0K
01:31The Intrinsic Apoptotic Pathway
8.2K
Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
8.2K