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为增强放射治疗量身定制一种静脉注射的瘤性病毒

Chen Xu¹, Liting Chen², Guangna Liu³

¹Department of Surgical Oncology and General Surgery, The First Hospital of China Medical University, Shenyang 110001, China; CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China; Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, China Medical University, Ministry of Education, Shenyang 110001, China; Phase I Clinical Trails Center, The First Hospital of China Medical University, Shenyang 110102, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; IGDB-NCNST Joint Research Center, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.

Cell reports. Medicine

|April 15, 2025

概括

RadioOnco是一种瘤性腺病毒 (AD) 配方,通过增加DNA损伤和增强抗瘤免疫力,改善了静脉输送,并提高了放射治疗 (RT) 的疗效. 这种新的方法针对转移和复发,促进长期免疫反应.

科学领域:

在瘤学瘤学.
病毒学病毒学
免疫学免疫学免疫学
材料科学材料科学材料科学

背景情况:

结合放射治疗 (RT) 的瘤解毒病毒 (OV) 显示出有前途的治疗效果,但在传递和疗效方面面临挑战.
目前的局限性包括静脉输送不良,快速清除,以及RT的瘤细胞死亡诱导不足.
提高病毒感染力和RT诱导的DNA损伤对于改善癌症治疗结果至关重要.

研究的目的:

开发一种瘤性腺病毒 (AD) 配方,RadioOnco (AD@PSSP),以提高静脉输送,感染力和与RT的协同效果.
研究多功能聚乙烯胺 (PEI) - - 聚乙烯甘醇 (PEG) (PSSP) 涂层在改善病毒传递和RT反应中的作用.
评估RadioOnco克服RT耐药性的潜力,准远程转移,并刺激抗瘤免疫反应.

主要方法:

开发一种用多功能PEI--PEG (PSSP) 涂层修饰的型腺病毒 (AD) 表面,称为RadioOnco (AD@PSSP).
评估AD@PSSP的静脉输送,瘤向和病毒屏蔽能力.
通过测量DNA修复蛋白表达 (CHEK1,CDK1) 来评估AD@PSSP对RT诱导的DNA损伤的影响.
在动物模型中分析免疫反应,包括抗原呈现和T细胞激活.

主要成果:

在RadioOnco的研究中,RadioOnco表现出增强的静脉输送,瘤向和保护快速清除.
PSSP涂层促进了PEI暴露,增加了AD感染力,并通过抑制DNA修复蛋白来增强RT诱导的DNA损伤.
通过捕获和释放RT诱导的抗原,RadioOnco治疗导致了强大的抗瘤免疫反应.
动物模型显示,RadioOnco克服了RT耐药性,向远程转移,并诱导长期免疫力,解决瘤复发问题.

结论:

无线电Onco是一种静脉注射的瘤性腺病毒,通过使用多功能PSSP材料进行表面修饰,显著增强RT协同作用.
这种配方改善病毒传递,增强RT诱导的DNA损伤,并激活强大的抗瘤免疫力.
无线电Onco为克服RT耐药性和解决转移性疾病提供了一个有希望的策略,可能导致长期控制疾病.

关键词:

在DNA损伤和修复过程中.适应ROS的材料腺病毒的病毒.抗瘤免疫反应的免疫反应.捕获抗原捕获的方法型病毒型病毒辐射疗法辐射疗法抗辐射疗法耐药性抗辐射治疗耐药性辐射疗法传感器辐射疗法传感器协同疗法是一种协同疗法.

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