EVs (Exosomes)
Exosomes are a type of extracellular vesicle, characterized by their size ranging from 30 nm to 150 nm, and are secreted by cells as specialized vesicles. They contain a variety of components, including proteins from stem cells, growth factors, anti-inflammatory factors, and nucleic acid fragments. Exosomes play a crucial role in intercellular communication by carrying signals that regulate the repair and regeneration of damaged surrounding cells, as well as modulating inflammatory responses.
Features of Exosomes
- Small Size and Easy Absorption:
Exosomes, with sizes ranging from 30-150 nm, have a lipid bilayer structure that allows them to easily traverse cell membranes for signal transmission. They can also cross the blood-brain barrier (BBB) to repair damaged neural systems in the brain. - Excellent Biocompatibility:
When exosomes are released from cells, they act like "delivery vehicles" carrying instructions to recipient cells. These exosomes enable various functions in the receiving cells, such as suppressing inflammation and regulating the immune system. - Outstanding Repair Capacity:
Exosomes can promote tissue repair and regeneration, aiding in wound healing and restoring skin elasticity.