| Literature DB >> 33533170 |
Ikuhiko Nakase1,2, Natsumi Ueno1,2, Mie Matsuzawa2, Kosuke Noguchi1,2, Mami Hirano1,2, Mika Omura1,2, Tomoya Takenaka1,2, Ayaka Sugiyama1,2, Nahoko Bailey Kobayashi3,4, Takuya Hashimoto5, Tomoka Takatani-Nakase6,7, Eiji Yuba5, Ikuo Fujii1, Shiroh Futaki8, Tetsuhiko Yoshida3,4.
Abstract
Exosomes (extracellular vesicles/EVs) participate in cell-cell communication and contain bioactive molecules, such as microRNAs. However, the detailed characteristics of secreted EVs produced by cells grown under low pH conditions are still unknown. Here, we report that low pH in the cell culture medium significantly affected the secretion of EVs with increased protein content and zeta potential. The intracellular expression level and location of stably expressed GFP-fused CD63 (an EV tetraspanin) in HeLa cells were also significantly affected by environmental pH. In addition, increased cellular uptake of EVs was observed. Moreover, the uptake rate was influenced by the presence of serum in the cell culture medium. Our findings contribute to our understanding of the effect of environmental conditions on EV-based cell-cell communication.Entities:
Keywords: cell-penetrating peptides; cellular uptake; exosomes; extracellular vesicles; pH
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Year: 2021 PMID： 33533170 PMCID： PMC7931216 DOI： 10.1002/2211-5463.13107
Source DB: PubMed Journal: FEBS Open Bio ISSN： 2211-5463 Impact factor: 2.693