Diamond, graphite, and graphene oxide nanoparticles decrease migration and invasiveness in glioblastoma cell lines by...

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Oncology

Background:

• Glioblastoma is a highly invasive brain tumor, posing significant treatment challenges.
• Nanoparticles like diamond (ND), graphite (NG), and graphene oxide (nGO) show promise in drug delivery and biomedical applications.
• Understanding nanoparticle interactions with glioblastoma cells is crucial for therapeutic development.

Purpose of the Study:

• To investigate the effects of ND, NG, and nGO on glioblastoma cell lines (U87 and U118).
• To assess the impact of these nanoparticles on cell adhesion, migration, and invasiveness.
• To explore the underlying signaling pathways affected by nanoparticle treatment.

Main Methods:

• Treatment of U87 and U118 glioblastoma cell lines with ND, NG, and nGO.
• Analysis of cell surface structure and adhesion.
• Evaluation of key signaling pathways including EGFR/AKT/mTOR and β-catenin.
• Assessment of cell migration and invasiveness assays.

Main Results:

• All tested nanoparticles altered cell surface structure and affected adhesion-dependent signaling pathways.
• ND, NG, and nGO significantly decreased glioblastoma cell migration and invasiveness.
• Nanoparticles exhibited low toxicity while effectively deregulating cell migration.
• ND showed high cellular uptake, while nGO and NG demonstrated strong cell surface interaction.

Conclusions:

• Nanoparticles (ND, NG, nGO) can modulate glioblastoma cell behavior, reducing invasiveness.
• These nanoparticles represent a potential low-toxicity therapeutic strategy for glioblastoma.
• Further research into nanoparticle-mediated signaling pathway modulation is warranted for glioblastoma treatment.