Journal Article Epublish
PubMed: 40292329 DOI: 10.3389/fcell.2025.1497795
Characterization of size distribution and markers for mosquito extracellular vesicles.
Front Cell Dev Biol 13:1497795
Authors: Félix Rey-Cadilhac, Florian Rachenne, Antonin Marquant, Josephine Lai Kee Him, Aurélie Ancelin, Veronica Foisor, Marie Morille, Sébastien Lyonnais, Chantal Cazevieille, Dorothée Missé, Julien Pompon
Affiliations
- MIVEGEC, Univ. Montpellier, IRD, CNRS, Montpellier, France.
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France.
- CBS (Centre de Biologie Structurale), Univ. Montpellier, CNRS, Inserm, Montpellier, France.
- Unchained Labs, Royston, United Kingdom.
- Institut Universitaire de France (IUF), Paris, France.
- CEMIPAI, UAR3725 CNRS - Montpellier University, Montpellier, France.
- INM (Institut de Neuroscience de Montpellier), Electronic Microscopy Plateform, Saint Eloi Hospital, Montpellier, France.
Abstract
Extracellular vesicles (EVs) are non-replicative, cell-derived membranous structures secreted by potentially all eukaryotic cells, playing a crucial role in intercellular communication. The study of EVs requires approaches and tools, which have predominantly been developed for mammalian models. Here, we undertook a multimodal characterization of mosquito EVs to provide a technical and knowledge foundation for their study. First, using a cell line model from and applying multiple analytical technologies (i.e., NTA, TEM, cryo-EM, and AFM), we observed that mosquito EVs range from 20 to 500 nm in diameter and that a majority are smaller than 100 nm. Second, we showed that smaller EVs are secreted in mosquito saliva. Third, we evaluated the capacity of differential centrifugation and size exclusion chromatography to separate mosquito EVs, revealing the strengths and weaknesses of each technology. Finally, we identified a mosquito homolog of CD63 as an extravesicular marker and the mosquito syntenin as a putative luminal marker. Overall, our results promote the development of tools and approaches for the study of mosquito EVs.
MeSH
Cells, Extracellular Vesicles, Microscopy, Tetraspanins, Syntenins