Effects of on Microglial-Derived Extracellular Vesicle Biogenesis and Composition.

Pathogens

Microbiology Program, Department of Biological Sciences, College of Science, Technology, Engineering and Mathematics, Alabama State University, Montgomery, AL 36104, USA.

Published: December 2019


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Article Abstract

The packaging of molecular constituents inside extracellular vesicles (EVs) allows them to participate in intercellular communication and the transfer of biological molecules, however the role of EVs during bacterial infection is poorly understood. The goal of this study was to examine the effects of ( infection on the biogenesis and composition of EVs derived from the mouse microglia cell line, BV-2. BV-2 cells were cultured in exosome-free media and infected with 0, 1.3 × 10, or 2.6 × 10 colony forming units per milliliter for 72 h. The results indicated that compared with the control group, BV-2 cell viability significantly decreased after infection and BV-2-derived EVs concentration decreased significantly in the infected group. infection significantly decreased chemokine ligand 4 messenger RNA in BV-2-derived infected EVs, compared with the control group ( ≤ 0.05). This study also revealed that heat shock protein 70 ( ≤ 0.05) and heat shock protein 90β ( ≤ 0.001) levels of expression within EVs increased after infection. EV treatment with EVs derived from infection reduced cell viability of BV-2 cells. infection alters the expression of specific proteins and mRNA in EVs. Our study suggests that infection modulates EV biogenesis and composition, which may influence bacterial pathogenesis and infection.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6963293PMC
http://dx.doi.org/10.3390/pathogens8040297DOI Listing

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