Kovács KD, Visnovitz T, Gerecsei T, Peter B, Kurunczi S, Koncz A, Németh K, Lenzinger D, Vukman KV, Balogh A, Rajmon I, Lőrincz P, Székács I, Buzás EI, Horvath R. Nanoinjection of extracellular vesicles to single live cells by robotic fluidic force microscopy.
J Extracell Vesicles 2023;
12:e12388. [PMID:
38032323 PMCID:
PMC10688506 DOI:
10.1002/jev2.12388]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 10/09/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
In the past decade, extracellular vesicles (EVs) have attracted substantial interest in biomedicine. With progress in the field, we have an increasing understanding of cellular responses to EVs. In this Technical Report, we describe the direct nanoinjection of EVs into the cytoplasm of single cells of different cell lines. By using robotic fluidic force microscopy (robotic FluidFM), nanoinjection of GFP positive EVs and EV-like particles into single live HeLa, H9c2, MDA-MB-231 and LCLC-103H cells proved to be feasible. This injection platform offered the advantage of high cell selectivity and efficiency. The nanoinjected EVs were initially localized in concentrated spot-like regions within the cytoplasm. Later, they were transported towards the periphery of the cells. Based on our proof-of-principle data, robotic FluidFM is suitable for targeting single living cells by EVs and may lead to information about intracellular EV cargo delivery at a single-cell level.
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