Angiopep-2/IP10-EGFRvIIIscFv modified nanoparticles and CTL synergistically inhibit malignant glioblastoma

Scientific Reports
Xuan WangXiao-Bing Jiang

Abstract

Preparation of agents that can successfully traverse the blood-brain-barrier (BBB) is a key challenge in brain cancer therapeutics. In this study, angiopep-2 was used as a brain-targeting peptide for preparing multifunctional Angiopep-2-modified poly nanoparticles, angiopep-2 and IP10-EGFRvIIIscFv fusion protein modified nanoparticles. In vitro experiments showed a greater uptake of Angiopep-2 modified nanoparticles, also angiopep-2 and IP10-EGFRvIIIscFv fusion protein modified nanoparticles by bEnd.3 cells versus nanoparticles and nanoparticles modified by IP10-EGFRvIIIscFv. Angiopep-2 and IP10-EGFRvIIIscFv fusion protein modified nanoparticles accumulated in brain tissue after intravenous injection and recruited activated CD8+ T lymphocytes to location of glioblastoma cells. In vivo experiments to assess anti-glioblastoma effect of angiopep-2 and IP10-EGFRvIIIscFv fusion protein modified nanoparticles showed significantly reduced tumor volume in angiopep-2 and IP10-EGFRvIIIscFv fusion protein modified nanoparticles+ CD8+ cytotoxic T lymphocytes group versus in NPs modified by IP10-EGFRvIIIscFv+ CD8+ cytotoxic T lymphocytes, CD8+ cytotoxic T lymphocytes, Angiopep-2 modified nanoparticles+ CD8+ cytotoxic T lymphocytes, angiopep...Continue Reading

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Methods Mentioned

BETA
fluorescence microscopy
flow cytometry
fluorescence imaging
Fluorescence
confocal microscopy
xenograft
dynamic light scattering

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