Supramolecularly Engineered Conjugate of Bacteria and Cell Membrane‐Coated Magnetic Nanoparticles for Enhanced Ferroptosis and Immunotherapy of Tumors

Bibliographic Details
Title: Supramolecularly Engineered Conjugate of Bacteria and Cell Membrane‐Coated Magnetic Nanoparticles for Enhanced Ferroptosis and Immunotherapy of Tumors
Authors: Beibei Xie, Huichao Zhao, Yuan‐Fu Ding, Ziyi Wang, Cheng Gao, Shengke Li, Kehan Zhang, Seong Wan Ip, Huazhong Yu, Ruibing Wang
Source: Advanced Science, Vol 10, Iss 34, Pp n/a-n/a (2023)
Publisher Information: Wiley, 2023.
Publication Year: 2023
Collection: LCC:Science
Subject Terms: cell membranes, engineered bacteria, ferroptosis, supramolecular, Science
More Details: Abstract Although various ferroptosis inducers including magnetic nanoparticles (Fe3O4) and iron‐organic frameworks have been applied in cancer treatment, the mild immunogenicity, low targeting efficiency to the tumor, and poor tissue penetration have limited the therapeutic efficacy. Herein, a supramolecularly engineered conjugate between living bacteria (facultative anaerobic Salmonella typhimurium VNP20009, VNP) and cancer cell membranes‐coated Fe3O4 nanoparticles is developed for improving targeted delivery of Fe3O4 nanoparticles into the tumor tissue and for synergistic ferroptosis and immunotherapy of tumor. The enhanced ferroptosis induced by both Fe3O4 nanoparticles and the loaded ferroptosis inducing agent (sulfasalazine (SAS)) effectively inhibits tumor growth and generates immune response via immunogenic cell death (ICD). The colonization of VNP in tumors also induces adaptive immune responses and further promotes ferroptosis. Fundamentally, the supramolecular conjugate of VNP and cell membranes‐coated Fe3O4 can potentiate the therapeutic capability of each other through mutually magnifying the ferroptosis and immunotherapy, resulting in significantly enhanced antitumor effects.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2198-3844
Relation: https://doaj.org/toc/2198-3844
DOI: 10.1002/advs.202304407
Access URL: https://doaj.org/article/db539f760dd64f78ad1ced0dae3fbd1c
Accession Number: edsdoj.b539f760dd64f78ad1ced0dae3fbd1c
Database: Directory of Open Access Journals
More Details
ISSN:21983844
DOI:10.1002/advs.202304407
Published in:Advanced Science
Language:English