Pharmaceutics (Apr 2024)

High Manganese Content of Lipid NanoMn (LNM) by Microfluidic Technology for Enhancing Anti-Tumor Immunity

  • Jiawei Sun,
  • Jingjing Gong,
  • Lidong Gong,
  • Chuanda Zhu,
  • Longhao Li-Yang,
  • Jingya Wang,
  • Yuanyuan Yang,
  • Shiming Zhang,
  • Silu Liu,
  • Ji-Jun Fu,
  • Pengcheng Xu

DOI
https://doi.org/10.3390/pharmaceutics16040556
Journal volume & issue
Vol. 16, no. 4
p. 556

Abstract

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Immunotherapy is a clinically effective method for treating tumors. Manganese can activate the cGAS-STING signaling pathway and induce an anti-tumor immune response. However, its efficacy is hindered by non-specific distribution and low uptake rates. In this study, we employed microfluidic technology to design and develop an innovative preparation process, resulting in the creation of a novel manganese lipid nanoparticle (LNM). The lipid manganese nanoparticle produced in this process boasts a high manganese payload, excellent stability, the capacity for large-scale production, and high batch repeatability. LNM has effectively demonstrated the ability to activate the cGAS-STING signaling pathway, induce the production of pro-inflammatory cytokines, and inhibit tumor development. Notably, LNM does not require combination chemotherapy drugs or other immune activators. Therefore, LNM presents a safe, straightforward, and efficient strategy for anti-tumor immune activation, with the potential for scalable production.

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