Luc/GFP Reporter Cell Line-B16F10

Macrophages play a pivotal role in regulating inflammation and can either promote or inhibit tumor growth and metastasis. Researchers harnessed the anti-tumor potential of macrophages using Ferumoxytol (FMT) combined with the Toll-like receptor 3 (TLR3) agonist, poly (I:C) (PIC), or FP-NPs (nanoparticles composed of FMT-NH2 surface functionalized with PIC). In vitro studies revealed that these combinations synergistically inhibited B16F10 cell proliferation by inducing a tumoricidal macrophage phenotype with increased TNF-α and iNOS expression, enhanced NO secretion, and augmented phagocytosis. In vivo experiments demonstrated regression of primary melanoma and alleviation of pulmonary metastasis with elevated pro-inflammatory macrophage infiltration and upregulation of pro-inflammatory genes. FP-NPs showed enhanced anti-metastatic efficacy by steering macrophages to M1 phenotype through NF-κB signaling.

Figure 1. The combined effects of FMT and PIC on macrophage activation and tumor growth inhibition were studied using Luc/GFP Reporter Cell Line-B16F10. Cell viability, GFP fluorescence intensity, proliferation, and gene expression were analyzed in co-culture experiments with RAW 264.7 cells. The results demonstrated the potential of the FMT/PIC combination in enhancing macrophage activation and inhibiting tumor growth, contributing to the understanding of immune responses in cancer therapy. (Zhao J, et al., 2018)