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Bacterial Lysate-Based Bifunctional mRNA Nanoformulation for Efficient Colon Cancer Immunogene Therapy.

Authors :
Chen X
Wu J
Zhou B
Zhu M
Zhang J
Zhou N
Zhu YZ
Zhang X
Duan X
Men K
Source :
ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2024 Oct 23; Vol. 16 (42), pp. 56580-56598. Date of Electronic Publication: 2024 Oct 14.
Publication Year :
2024

Abstract

mRNA-based nonviral gene therapy has played an important role in cancer therapy, however, the limited delivery efficiency and therapeutic capacity still require further exploration and enhancement. Immunogene therapy provides a strategy for cancer treatment. Bacteria are tiny single-celled living organisms, many of which can be found in and on the human body and are beneficial to humans. Lactobacillus reuteri is a bacterial member of the gut flora, and recent research has shown that it can reduce intestinal inflammation by stimulating an immunomodulatory response. L. reuteri lysate represents an ideal resource for constructing advanced mRNA delivery systems with immune stimulation potential. Here, we prepared a bifunctional mRNA delivery system DMP-Lac (DOTAP-mPEG-PCL- L. reuteri lysate), which successfully codelivered L. reuteri lysate and IL-23A mRNA, exhibited a high mRNA delivery efficiency of 75.56% ± 0.85%, and strongly promoted the maturation and activation of the immune system in vivo. Both the CT26 abdominal metastasis model and the lung metastasis model also exhibited a good therapeutic effect, and the tumor inhibition rate of DMP-Lac/IL-23A group reached 97.92%. Protein chip technology verified that DMP acted as an immune adjuvant, demonstrating that the L. reuteri lysate could regulate the related immune cells, while IL-23 mRNA caused changes in downstream factors, thus producing the corresponding tumor treatment effect. The DMP-Lac/IL-23A complex exhibited strong anticancer immunotherapeutic effects. Our results demonstrated that this bifunctional mRNA formulation served as a tumor-specific nanomedicine, providing an advanced strategy for colon cancer immunogene therapy.

Details

Language :
English
ISSN :
1944-8252
Volume :
16
Issue :
42
Database :
MEDLINE
Journal :
ACS applied materials & interfaces
Publication Type :
Academic Journal
Accession number :
39397736
Full Text :
https://doi.org/10.1021/acsami.4c07684