相关实验视频

Updated: Jan 13, 2026

In Vivo Model for Testing Effect of Hypoxia on Tumor Metastasis

In Vivo Model for Testing Effect of Hypoxia on Tumor Metastasis

Published on: December 9, 2016

AVN944引发了细胞亡反应,并阻碍了Ewing肉瘤细胞中瘤源的潜力

Hanah Lim¹, Seonock Lee¹, Gamin Kim¹

¹Laboratory of Molecular and Cellular Biology, Department of Life Science, Sogang University, Seoul 04107, Korea.

International journal of biological sciences

|January 12, 2026

概括

AVN944是一种IMPDH2抑制剂,通过阻断细胞增殖和诱导亡,对尤文肉瘤表现出强大的抗瘤作用. 这种IMPDH2抑制剂证明了治疗这种具有挑战性的儿科癌症的治疗潜力.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
药理学药理学是指药理学的学科.

背景情况:

伊诺辛单酸脱酶2 (IMPDH2) 对于瓜核酸合成至关重要,支持癌细胞的存活和增殖.
尤文肉瘤是一种具有挑战性的儿科和年轻成人恶性瘤,治疗选择有限.
向核酸生物合成途径为尤文肉瘤提供了潜在的治疗策略.

研究的目的:

为了评估AVN944的疗效,一个IMPDH2抑制剂,作为对尤金肉瘤的潜在治疗.
调查IMPDH2表达与肉瘤患者存活率之间的关联.
评估AVN944在Ewing肉瘤细胞上的体外和体内影响.

主要方法:

对癌症基因组图谱 (TCGA) 基因表达和对肉瘤患者的临床数据的分析.
在体外研究中使用人类尤金肉瘤细胞系 (TC71,SK-ES-1) 进行活力,增殖,细胞周期和细胞亡的测试.
在Ewing肉瘤异种移植模型中的体内疗效和毒性评估.

主要成果:

高IMPDH2表达趋向于导致肉瘤患者的整体存活率降低.
AVN944显著降低了Ewing瘤细胞的活力和扩散,以剂量依赖的方式,诱导G1细胞周期停止和亡.
在活体异种移植模型中,AVN944显示有效抑制瘤生长,没有显著的毒性;IC50为~0.05μM.

结论:

通过抑制IMPDH2,AVN944在体外和体内表现出强大的抗瘤活性,对抗尤文肉瘤.
药物的机制涉及细胞循环停止和细胞亡,导致瘤活力和增殖减少.
针对AVN944的核酸生物合成显示出对Ewing肉瘤治疗的前景,这需要进一步的临床研究.

关键词:

AVN94444 在线播放细胞灭亡 (apoptosis) 是一种死亡的过程.尤文氏肉瘤 (Ewing's sarcoma) 是一种癌症.的 IMPDH2DH2 的情况.瘤原发性性. 这就是瘤.

更多相关视频

Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen

Enhancement 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

Preparation of Cell-lines for Conditional Knockdown of Gene Expression and Measurement of the Knockdown Effects on E4orf4-Induced Cell Death

Preparation of Cell-lines for Conditional Knockdown of Gene Expression and Measurement of the Knockdown Effects on E4orf4-Induced Cell Death

Published on: October 21, 2012

相关概念视频

The Intrinsic Apoptotic Pathway

The Intrinsic Apoptotic Pathway

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...