A core-shell nanomaterial with endogenous therapeutic and diagnostic functions

Area of Science:

• Nanomaterials Science
• Biomedical Engineering
• Medical Imaging

Background:

• Vascular endothelial growth factor (VEGF165) promotes angiogenesis, a process crucial for tumor growth and metastasis.
• Developing multifunctional nanomaterials for simultaneous diagnosis and therapy is a key challenge in nanomedicine.

Purpose of the Study:

• To fabricate and characterize a novel core-shell nanomaterial with combined therapeutic and diagnostic capabilities.
• To evaluate the anti-angiogenic and MRI contrast properties of the fabricated Au(FeCo) nanomaterials.

Main Methods:

• Gas-phase fabrication of Au(FeCo) core-shell nanomaterials.
• Characterization using transmission electron microscopy (TEM), energy dispersive spectrum (EDS), inductively coupled plasma analysis (ICP), and magnetic resonance imaging (MRI).
• In vitro assessment of VEGF165 inhibition on HUVEC proliferation and signaling.

Main Results:

• Successful fabrication of Au(FeCo) core-shell nanomaterials with demonstrated MRI contrast properties.
• Au(FeCo) nanomaterials effectively inhibited VEGF165-induced signaling cascades and HUVEC proliferation.
• In vitro MRI confirmed the intrinsic contrast property of Au(FeCo) nanomaterials.

Conclusions:

• The developed Au(FeCo) core-shell nanomaterials exhibit dual therapeutic (VEGF165 inhibition) and diagnostic (MRI contrast) functions.
• These nanomaterials represent a promising platform for theranostic applications in cancer and other diseases.
• Further research is warranted to explore their in vivo efficacy and safety.