通过snoopligase催化分子,可以有效地生成高氧化 TRAIL 变体,并增强抗瘤效果
Tianshan She1, Fen Yang1, Shiyuan Chen1
1Division of Abdominal Tumor Multimodality Treatment, Cancer Center, NHC Key Lab of Transplant Engineering and Immunology, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China.
概括
分子超技术通过创建超强的六价变体来增强与瘤亡因子相关的亡诱导配体 (TRAIL). 这种新的方法显著提高了抗瘤疗效,并为癌症治疗提供了前景.
科学领域:
- 生物技术是生物技术.
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 由于瘤细胞的亡诱导不良,TRAIL的临床使用受到限制.
- 分子超技术提供了一种提高 TRAIL 价值和有效性的方法.
研究的目的:
- 使用分子超系统开发和评估超寡合的 TRAIL 变体.
- 评估这些新的TRAIL结构的增强细胞毒性和体内抗瘤作用.
主要方法:
- 最小的超粘合对 (SnoopTagJr/SnoopDogTag,SpyTag/SpyBDTag) 的融合到TRAIL.
- 用Snoopligase或SpyStapler来表达大肠杆菌中的融合蛋白和诱导三元化和六元化.
- 实验室中细胞毒性测定和体内研究使用瘤异种移植在小鼠.
主要成果:
- 斯诺普利加斯有效地产生了六价 TRAIL (SnHexaTR),产量高 (∼70%).
- 在体外,SnHexaTR的细胞毒性比原生TRAIL高10-40倍.
- 六价SnHexaTR证明改善了血清半衰期,瘤吸收,并在体内显著抑制瘤生长.
结论:
- 通过分子超的超氧化显著增强了TRAIL的细胞毒性和抗瘤活性.
- 六价SnHexaTR是一种有前途的新型抗癌药物候选剂,可用于临床应用.
- 这种方法提供了一种可行的策略,以克服TRAIL耐药性并改善癌症治疗结果.
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