通过高度分支的线性多β-氨基s介导的优越的 TRAIL 基因表达和癌细胞亡
Yitong Zhao1, Tao Bo2, Chenfei Wang3
1School of Medicine, Anhui University of Science and Technology, 232000, Huainan, Anhui, China.
新的分支线性多β-氨基 (H-LPAE) 有效地传递与瘤亡因子相关的亡诱导配体 (TRAIL) 基因. 这一突破为癌症基因治疗提供了一个有希望的策略,并改善了治疗结果.
科学领域:
- 生物材料科学 生物材料科学
- 基因治疗 基因治疗
- 聚合物化学 聚合物化学
背景情况:
- 有效的癌症治疗策略越来越多地侧重于增强癌细胞中的瘤亡因子相关的亡诱导连接体 (TRAIL) 表达.
- 安全和高效的TRAIL基因传递,特别是使用阴离子聚合物,在临床应用中是一个重大挑战.
研究的目的:
- 开发新型高度分支的线性多β-氨基 (H-LPAE) 以实现优异的基因传递.
- 评估H-LPAEs在凝结DNA和促进癌症治疗的基因转移中的有效性.
主要方法:
- 采用独特的寡头分支策略来合成一系列H-LPAE.
- 分析了H-LPAE/DNA多重复的物理化学特性.
- 在各种癌症和非癌症细胞系 (SW1353,BMSC,HepG2,HeLa) 中评估了基因转移效率和亡诱导.
- 在体内研究评估了H-LPAE介导的TRAIL基因传递在HepG2异种移植瘤模型中的治疗潜力.
主要成果:
- 优化的H-LPAE (H-LPAEB4-S5-TMPTA) 显示出出色的DNA凝聚和有利的多重复性质.
- 在SW1353 (58.0%) 和BMSC (33.4%) 细胞中实现了优异的基因传染效率,显著优于Lipofectamine 3000.
- 在HepG2 (56.7%) 和HeLa (28.1%) 细胞中诱导了显著的癌细胞亡.
- 在体内给药H-LPAEB4-S5-TMPTA成功地将 TRAIL DNA传递到瘤中,并抑制了瘤的生长.
结论:
- 开发的H-LPAE具有独特的分支线性拓结构,可实现高效的基因传递.
- H-LPAEB4-S5-TMPTA是一种高度有效的非病毒载体,用于TRAIL基因疗法.
- 这项研究为推进癌症基因治疗应用提供了一个有希望的候选人.
更多相关视频
14:20Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
Published on: June 13, 2014
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
The Intrinsic Apoptotic Pathway
Targeted Cancer Therapies
There are several types of targeted therapies against...
Abnormal Proliferation
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...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Tumor Progression
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
