© 2019 by Tick Immunity. Created by Valerie Hoy and Samantha Watters.

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Message in a Vesicle – Trans-kingdom Intercommunication



Joao H. F. Pedra of the University of Maryland School of Medicine and his team published a new review paper that briefly discusses exosome and microvesicle biogenesis, their cargo, and the role that nanovesicles play during pathogen spread, host colonization, and disease pathogenesis. The review then focuses on the role of extracellular vesicles in dictating microbial pathogenesis and host immunity during transmission of vector-borne pathogens.

Vector-borne diseases cause over 700,000 deaths annually and represent 17% of all infectious illnesses worldwide. This public health menace highlights the importance of understanding how arthropod vectors, microbes, and their mammalian hosts interact. Currently, an emphasis of the scientific enterprise is at the vector–host interface where human pathogens are acquired and transmitted. At this spatial junction, arthropod effector molecules are secreted, enabling microbial pathogenesis and disease. Extracellular vesicles manipulate signaling networks by carrying proteins, lipids, carbohydrates and regulatory nucleic acids. Therefore, they are well positioned to aid in cell-to-cell communication and mediate molecular interactions.


This paper, Message in a vesicle – trans-kingdom intercommunication at the vector–host interface, is published in Journal of Cell Science.


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