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Microglia Polarization and Antiglioma Effects Fostered by Dual Cell Membrane-Coated Doxorubicin-Loaded Hexagonal
Özlem Şen1, Melis Emanet1, Martina Mazzuferi1,2
1Smart Bio-Interfaces, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy.
Abstract:
Microglial cells play a critical role in glioblastoma multiforme (GBM) progression, which is considered a highly malignant brain cancer. The activation of microglia can either promote or inhibit GBM growth depending on the stage of the tumor development and on the microenvironment conditions. The current treatments for GBM have limited efficacy; therefore, there is an urgent need to develop novel and efficient strategies for drug delivery and targeting: in this context, a promising strategy consists of using nanoplatforms. This study investigates the microglial response and the therapeutic efficacy of dual-cell membrane-coated and doxorubicin-loaded hexagonal boron nitride nanoflakes tested on human microglia and GBM cells. Obtained results show promising therapeutic effects on glioma cells and an M2 microglia polarization, which refers to a specific phenotype or activation state that is associated with anti-inflammatory and tissue repair functions, highlighted through proteomic analysis.
Insights
Dual-cell membrane-coated hexagonal boron nitride nanoflakes show promise for glioblastoma treatment by activating anti-inflammatory microglia and inhibiting cancer cells. This nanoplatform offers a novel therapeutic strategy for brain cancer.
Area of Science:
- Neuroscience
- Oncology
- Materials Science
Background:
- Microglial cells are crucial in glioblastoma multiforme (GBM) progression, influencing tumor growth based on stage and microenvironment.
- Current GBM treatments have limited efficacy, necessitating innovative drug delivery and targeting strategies.
- Nanoplatforms present a promising approach for enhanced glioblastoma therapy.
Purpose of the Study:
- To investigate the microglial response to a novel nanoplatform.
- To evaluate the therapeutic efficacy of dual-cell membrane-coated, doxorubicin-loaded hexagonal boron nitride nanoflakes on GBM.
- To analyze the impact on microglia polarization and GBM cell viability.
Main Methods:
- Utilized dual-cell membrane-coated hexagonal boron nitride nanoflakes loaded with doxorubicin.
- Tested the nanoplatform on human microglia and glioblastoma cells.
- Performed proteomic analysis to assess microglial polarization and cellular responses.
Main Results:
- The nanoplatform demonstrated promising therapeutic effects on glioblastoma cells.
- Observed M2 microglia polarization, indicating an anti-inflammatory and tissue-repair phenotype.
- Proteomic analysis confirmed these beneficial microglial and anti-tumor effects.
Conclusions:
- Dual-cell membrane-coated hexagonal boron nitride nanoflakes are effective against glioblastoma.
- This nanoplatform induces a beneficial M2 microglia polarization, supporting anti-tumor activity.
- The study highlights a novel and efficient strategy for glioblastoma drug delivery and treatment.
