生物惰性塔莫西芬衍生的长期凝介导免疫化疗可以缓解瘤进展并激活T细胞免疫力
Somesh Kumar Jha1, Sandeep Kumar1, Dolly Jain1
1Laboratory of Tumour Immune Microenvironment, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3 Milestone, Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India.
概括
研究人员开发了一种新的可注射水凝,以对抗免疫抑制瘤微环境. 这种水凝提供化疗和免疫刺激剂,增强抗瘤免疫力和患者生存率.
科学领域:
- 生物医学工程 生物医学工程
- 癌症治疗 癌症治疗
- 免疫学 免疫学 免疫学
背景情况:
- 免疫抑制性瘤微环境 (TME) 阻碍了癌症治疗的有效性.
- 开发有效的药物输送系统对于克服与TME相关的挑战至关重要.
研究的目的:
- 为增强癌症治疗设计一种持久,可注射的水凝 (LTG4-Gel).
- 在临床前癌症模型中评估含药水凝的治疗潜力.
主要方法:
- 使用风湿学,UV-Vis,CD和AFM制造和表征LTG4-Gel.
- 在小鼠瘤模型中的体内研究使用多克索鲁比 (DOX) 载荷的水凝 (DOX-Gel) 和DOX与c-di-GMP盐 (GMP) (DOX-GMP-Gel) 结合.
- 评估抗瘤反应,生存率,T细胞免疫力和记忆反应.
主要成果:
- 在动物模型中,LTG4-Gel证明了可注射性,性稳定性和没有全身毒性.
- DOX-Gel显著抑制了瘤生长,并改善了生存率.
- 针对STING途径的DOX-GMP-Gel有效地减轻了瘤的进展,提高了生存率,激活了抗瘤T细胞免疫力,并产生了记忆反应.
结论:
- 工程 LTG4-Gel 是一个有前途的平台,用于联合提供化疗药物和免疫激动剂.
- 这种方法有效调节瘤微环境,为增强癌症治疗提供了一种新的策略.
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