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Abstract #3175

Manganese-based nanoparticles for 1H/19F MRI and immune-activated co-therapy for tumor microenvironment response

Qiuyi Xu1, Sha Li1, Lei Zhang1, Shizhen Chen1, and Xin Zhou1
1Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China

Synopsis

Keywords: Molecular Imaging, Molecular Imaging

Motivation: Simultaneous enhancing MRI signals and effectively generating and activating immune cells is a significant challenge when using one contrast agent.

Goal(s): This work aims to develop nanoparticles of guiding tumor synergistic therapy using 1H/19F MRI while activating the STING pathway.

Approach: FMBI nanoparticles were designed for enhancement of 1H/19F MRI and activation of the immune system.

Results: FMBI nanoparticles responsively release Mn ions in the tumor microenvironment to enhance the signals of 1H/19F MRI and improve immune pathway activity and anti-tumor efficacy.

Impact: Our synthesized FMBI nanoparticles are a STING pathway-activatable contrast agent that can be used for 1H/19F MRI-guided tumor therapy with high efficacy, which shows promise for effective tumor immunotherapy.

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