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Published on: July 25, 2020
CD44-targeted therapy using mP6/Rg3 micelles inhibits oral cancer stem cell proliferation and migration
Sijia Cai1, Yuwen Chen1, Changyu Chen2
1Department of Orthodontics, School of Stomatology, China Medical University, Shenyang, Liaoning, 110002, P.R. China.
Background:
This study investigates how mP6/Rg3 micelles modulate ABCB1 expression to induce ferroptosis in oral cancer stem cells (CSC) and enhance oral cancer outcomes.
Methods:
Micelles targeting CD44 peptide P6 were prepared and characterized using TEM and immunofluorescence. Biocompatibility was evaluated through LIVE/DEAD staining and CCK-8 assays. Impact on oral cancer CSC was assessed through in vitro and OSCC mouse model studies using transcriptomic profiling, proteomic analysis, and metabolomic screening.
Results:
mP6/Rg3 micelles exhibited good biodegradability, inhibiting CSC proliferation and migration. Integrated multi-omics analysis highlighted ABCB1 as a pivotal modulator in OSCC. Functional assays in cell and animal models validated micelles promote ferroptosis in CSC by inhibiting ABCB1, improving OSCC pathology.
Conclusions:
Targeting ABCB1 with mP6/Rg3 micelles and regulating CD44 presents a promising approach to suppress oral cancer progression by impacting CSC and tumor metabolic pathways. This study offers crucial molecular insights for new therapeutic strategies in oral cancer treatment.
