蓝光发射二极管通过内源性亡途径抑制了肉瘤细胞的增殖,而不会损害正常细胞
Shinji Kawaguchi1, Toshihiko Nishisho1, Shunichi Toki1
1Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
Cancer medicine
|March 24, 2025
概括
蓝光 (BL) 是一种新的肉瘤治疗方法. 这种疗法选择性地向肉瘤细胞,抑制它们的生长并诱导细胞死亡,同时保存正常细胞.
科学领域:
- 在瘤学瘤学.
- 照相医疗 (photomedicine) 是一种医学.
背景情况:
- 瘤治疗选择有限,许多瘤对传统疗法有抗性.
- 对于骨和软组织肉瘤,迫切需要新的治疗策略.
研究的目的:
- 为了研究蓝光 (BL) 对各种人类肉瘤细胞系的抗瘤作用.
- 为了确定BL是否与正常细胞相比,对瘤细胞具有选择性毒性.
主要方法:
- 人类肉瘤细胞系 (骨肉瘤,不分化的形肉瘤,脂肉瘤,myxofibrosarcoma) 和正常的皮肤纤维细胞被连续照射BL.
- 评估了细胞内活性氧物种 (ROS) 水平,亡,自和线粒体功能障碍.
主要成果:
- 在所有测试的肉瘤细胞系中,BL抑制了增殖,但对正常纤维细胞的影响很小.
- BL增加了瘤细胞中的ROS水平,导致了亡,自和线粒体功能障碍.
- 在未分化形肉瘤中,BL通过亡诱导细胞死亡,自发挥了抵制作用.
结论:
- 蓝光显示了针对瘤细胞的特定抗瘤作用,这表明它有可能成为一种新的治疗方法.
- BL可以为肉瘤提供向治疗选择,尽量减少对健康组织的损伤.
更多相关视频
09:57Real Time Detection of In Vitro Tumor Cell Apoptosis Induced by CD8+ T Cells to Study Immune Suppressive Functions of Tumor-infiltrating Myeloid Cells
Published on: January 29, 2019
22.3K
10:33Assessing Cell Viability and Death in 3D Spheroid Cultures of Cancer Cells
Published on: June 16, 2019
27.2K
相关概念视频
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
Abnormal Proliferation
4.4K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.4K
The Intrinsic Apoptotic Pathway
5.8K
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...
5.8K
