A multifaceted microenvironment nanoregulator for targeted ovarian cancer therapy

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Oncology

Background:

• Ovarian cancer presents challenges due to late detection and rapid growth.
• Exosomes (EXOs) show therapeutic potential for ovarian cancer by altering the tumor microenvironment.
• Biosafety concerns with animal-derived EXOs limit clinical translation.

Purpose of the Study:

• To develop a universal strategy for engineering plant-derived exosomes as nanoregulators for ovarian cancer therapy.
• To address the limitations of animal-derived exosomes in cancer treatment.
• To create a novel therapeutic platform for ovarian cancer targeting.

Main Methods:

• Purification of exosomes from ginger.
• Loading exosomes with curcumin (Cur) for enhanced encapsulation.
• Functionalization of exosomes with a tumor-targeting aptamer.
• Intravenous administration and evaluation of tumor accumulation and therapeutic effects.

Main Results:

• Engineered ginger-derived exosomes (^AGE@Cur) demonstrated high curcumin encapsulation efficiency.
• ^AGE@Cur effectively accumulated at the tumor site post-administration.
• The nanoregulators remodeled the tumor microenvironment, exerting a tumor-suppressive effect.

Conclusions:

• Plant-derived exosomes offer a biosafety-conscious alternative to animal-derived exosomes.
• This novel therapeutic platform shows promise for targeted ovarian cancer therapy.
• The strategy paves the way for developing innovative microenvironment regulators for clinical applications.