 Exosomes are small membrane vesicles released by various types of cells, such as epithelial cells, fibroblasts, and immune cells. These vesicles contain proteins, lipids, and nucleic acids, including RNA and DNA. Previous studies have found that exosomes can transfer genetic material between cells, suggesting their potential role in cellular communication and intercellular signaling. In this study, researchers investigated the presence of RNA in exosomes derived from human saliva, plasma, and breast milk. They found that RNA was present in all three types of exosomes, and that some of it could be identified as mRNA. Additionally, they observed that the exosomes could be taken up by macrophages, suggesting that they might play a role in cellular communication and intercellular signaling. This article was authored by Gabriel Sancizan, Stostrand Margarita, Bossio's Apostolos, and others. We are article.tv, links in the description below.