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In situ cancer vaccination using lipidoid nanoparticles
Name
eabf1244.full.pdf
Description
Published version
Size
7.82 MB
Format
Adobe PDF
Checksum (MD5)
6c08cddb83d9fe61ee31b0dcd99c1fbe
Author(s)
Chen, Jinjin
Qiu, Min
Ye, Zhongfeng
Nyalile, Thomas
Li, Yamin
Glass, Zachary
Zhao, Xuewei
Yang, Liu
Chen, Jianzhu
Xu, Qiaobing
Date Issued
2021
Journal
Science Advances
Publisher
American Association for the Advancement of Science (AAAS)
Version
Final published version
Abstract
In situ vaccination is a promising strategy for cancer immunotherapy owing to its convenience and the ability to induce numerous tumor antigens. However, the advancement of in situ vaccination techniques has been hindered by low cross-presentation of tumor antigens and the immunosuppressive tumor microenvironment. To balance the safety and efficacy of in situ vaccination, we designed a lipidoid nanoparticle (LNP) to achieve simultaneously enhancing cross-presentation and STING activation. From combinatorial library screening, we identified 93-O17S-F, which promotes both the cross-presentation of tumor antigens and the intracellular delivery of cGAMP (STING agonist). Intratumor injection of 93-O17S-F/cGAMP in combination with pretreatment with doxorubicin exhibited excellent antitumor efficacy, with 35% of mice exhibiting total recovery from a primary B16F10 tumor and 71% of mice with a complete recovery from a subsequent challenge, indicating the induction of an immune memory against the tumor. This study provides a promising strategy for in situ cancer vaccination.
Terms of Use
Creative Commons Attribution NonCommercial License 4.0
Persistent DSpace Link
DOI of Published Version
10.1126/sciadv.abf1244
