Physicochemical Modulation Strategies for Mass Production of Extracellular Vesicle

Area of Science:

• Biotechnology
• Cell Biology
• Regenerative Medicine

Background:

• Extracellular vesicles (EVs) show promise in disease diagnosis, therapy, and regenerative medicine due to their biocompatibility and cargo-carrying capacity.
• Clinical application of EVs is hindered by low secretion yields and challenges in large-scale production.

Purpose of the Study:

• To review recent strategies for enhancing extracellular vesicle (EV) production in cell culture.
• To explore chemical, mechanical, and structural stimulation methods to increase EV yield.
• To discuss cell-derived nanovesicles as a scalable alternative to EVs.

Main Methods:

• Review of chemical stimulation strategies: modulating nutrient composition, pH, temperature, oxygen, cholesterol, and oxidative stress.
• Examination of mechanical stimulation strategies: shear stress, irradiation, and ultrasound.
• Exploration of structural stimulation strategies: 3D culture systems (spheroids), bioreactors, and scaffolds.

Main Results:

• Various chemical, mechanical, and structural stimulation techniques can enhance EV production.
• Three-dimensional (3D) culture systems, bioreactors, and scaffolds offer improved EV secretion.
• Cell-derived nanovesicles are presented as a more easily mass-produced alternative to EVs.

Conclusions:

• Future research must prioritize cost-effective, scalable EV production and improved purification methods.
• Optimizing stimulation strategies, including 3D cultures and bioreactor designs, can further boost EV secretion.
• Addressing production and purification challenges is crucial for advancing EV applications in research and clinical practice.