An antigen self-assembled and dendritic cell-targeted nanovaccine for enhanced immunity against cancer

Autor: Yunting Zhang, Min Jiang, Guangsheng Du, Xiaofang Zhong, Chunting He, Ming Qin, Yingying Hou, Rong Liu, Xun Sun
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Acta Pharmaceutica Sinica B, Vol 13, Iss 8, Pp 3518-3534 (2023)
Druh dokumentu: article
ISSN: 2211-3835
DOI: 10.1016/j.apsb.2022.03.017
Popis: The rise of nanotechnology has opened new horizons for cancer immunotherapy. However, most nanovaccines fabricated with nanomaterials suffer from carrier-related concerns, including low drug loading capacity, unpredictable metabolism, and potential systemic toxicity, which bring obstacles for their clinical translation. Herein, we developed an antigen self-assembled nanovaccine, which was resulted from a simple acryloyl modification of the antigen to induce self-assembly. Furthermore, a dendritic cell targeting head mannose monomer and a mevalonate pathway inhibitor zoledronic acid (Zol) were integrated or absorbed onto the nanoparticles (denoted as MEAO-Z) to intensify the immune response. The synthesized nanovaccine with a diameter of around 70 nm showed successful lymph node transportation, high dendritic cell internalization, promoted costimulatory molecule expression, and preferable antigen cross-presentation. In virtue of the above superiorities, MEAO-Z induced remarkably higher titers of serum antibody, stronger cytotoxic T lymphocyte immune responses and IFN-γ secretion than free antigen and adjuvants. In vivo, MEAO-Z significantly suppressed EG7-OVA tumor growth and prolonged the survival time of tumor-bearing mice. These results indicated the translation promise of our self-assembled nanovaccine for immune potentiation and cancer immunotherapy.
Databáze: Directory of Open Access Journals