In this podcast, Dr. Mehdi Soleymani-Goloujeh, Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, in Iran, discusses regenerative medicine, types of extracellular vesicles and the current state of extracellular vesicles research. Podcast Points: What are exosomes? What are the most important roles of extracellular vesicles within the body? An overview of insulin-producing cells   Dr. Soleymani-Goloujeh discusses exosomes. Exosomes are membrane bound extracellular vesicles (EVs), produced in the endosomal compartment of nearly all eukaryotic cells. EVs, unlike cells, cannot replicate. Dr. Soleymani-Goloujeh talks about the roles that extracellular vesicles can play in the body, and he expounds upon issues regarding insulin and discusses how the pancreas utilizes EVs.  Dr. Soleymani-Goloujeh’s work covers multiple areas. His work has included research in the area of diabetes, cell penetrating peptides, extracellular vesicles and stem cells, cell therapy, nanotechnology and tissue engineering. Dr. Soleymani-Goloujeh provides an overview of the process of insulin delivery and the delivery of drugs throughout the body. He continues by discussing EV engineering and the various factors that are involved to facilitate efficient delivery.  Dr. Soleymani-Goloujeh talks in detail about multiple technologies that pertain to type 1 diabetes, discussing the important roles of exosomes, as well as signaling, and the power of nature.