当前位置: X-MOL 学术Biomater. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The unique potency of Cowpea mosaic virus (CPMV) in situ cancer vaccine.
Biomaterials Science ( IF 5.8 ) Pub Date : 2020-09-11 , DOI: 10.1039/d0bm01219j
Sourabh Shukla 1 , Chao Wang 1 , Veronique Beiss 1 , Hui Cai 1 , Torus Washington 1 , Abner A Murray 2 , Xingjian Gong 3 , Zhongchao Zhao 4 , Hema Masarapu 5 , Adam Zlotnick 4 , Steven Fiering 6 , Nicole F Steinmetz 7
Affiliation  

The immunosuppressive tumor microenvironment enables cancer to resist immunotherapies. We have established that intratumoral administration of plant-derived Cowpea mosaic virus (CPMV) nanoparticles as an in situ vaccine overcomes the local immunosuppression and stimulates a potent anti-tumor response in several mouse cancer models and canine patients. CPMV does not infect mammalian cells but acts as a danger signal that leads to the recruitment and activation of innate and subsequently, adaptive immune cells. In the present study we addressed whether other icosahedral viruses or virus-like particles (VLPs) of plant, bacteriophage and mammalian origin can be similarly employed as intratumoral immunotherapy. Our results indicate that CPMV in situ vaccine outperforms Cowpea chlorotic mottle virus (CCMV), Physalis mosaic virus (PhMV), Sesbania mosaic virus (SeMV), bacteriophage Qβ VLPs, or Hepatitis B virus capsids (HBVc). Furthermore, ex vivo and in vitro assays reveal unique features of CPMV that makes it an inherently stronger immune stimulant.

中文翻译:

豇豆花叶病毒 (CPMV) 原位癌症疫苗的独特效力。

免疫抑制的肿瘤微环境使癌症能够抵抗免疫疗法。我们已经确定,将植物源豇豆花叶病毒(CPMV)纳米颗粒作为原位疫苗进行瘤内给药,可以克服局部免疫抑制,并在几种小鼠癌症模型和犬类患者中刺激有效的抗肿瘤反应。CPMV 不会感染哺乳动物细胞,而是充当危险信号,导致先天性免疫细胞和随后的适应性免疫细胞的招募和激活。在本研究中,我们探讨了植物、噬菌体和哺乳动物来源的其他二十面体病毒或病毒样颗粒(VLP)是否可以类似地用作瘤内免疫疗法。我们的结果表明,CPMV原位疫苗的性能优于豇豆褪绿斑驳病毒 (CCMV)、酸浆花叶病毒 (PhMV)、田菁花叶病毒 (SeMV)、噬菌体 Qβ VLP 或乙型肝炎病毒衣壳 (HBVc)。此外,离体体外试验揭示了 CPMV 的独特特征,使其成为一种本质上更强的免疫刺激剂。
更新日期:2020-09-30
down
wechat
bug