MnOx Nanospikes as Nanoadjuvants and Immunogenic Cell Death Drugs with Enhanced Antitumor Immunity and Antimetastatic Effect.
Binbin DingPan ZhengFan JiangYajie ZhaoMeifang WangMengyu ChangPing'an MaJun LinPublished in: Angewandte Chemie (International ed. in English) (2020)
Despite the widespread applications of manganese oxide nanomaterials (MONs) in biomedicine, the intrinsic immunogenicity of MONs is still unclear. MnOx nanospikes (NSs) as tumor microenvironment (TME)-responsive nanoadjuvants and immunogenic cell death (ICD) drugs are proposed for cancer nanovaccine-based immunotherapy. MnOx NSs with large mesoporous structures show ultrahigh loading efficiencies for ovalbumin and tumor cell fragment. The combination of ICD via chemodynamic therapy and ferroptosis inductions, as well as antigen stimulations, presents a better synergistic immunopotentiation action. Furthermore, the obtained nanovaccines achieve TME-responsive magnetic resonance/photoacoustic dual-mode imaging contrasts, while effectively inhibiting primary/distal tumor growth and tumor metastasis.
Keyphrases
- cell death
- magnetic resonance
- cancer therapy
- high resolution
- cell cycle arrest
- papillary thyroid
- single cell
- cell therapy
- signaling pathway
- squamous cell
- drug delivery
- minimally invasive
- stem cells
- squamous cell carcinoma
- contrast enhanced
- highly efficient
- photodynamic therapy
- oxide nanoparticles
- lymph node metastasis
- metal organic framework