Glucan Particles Loaded with Fluorinated Emulsions: A Sensitivity Improvement for the Visualization of Phagocytic Cells by 19F-MRI

Publisher: Bentham Science Publishers

E-ISSN: 2211-5544|4|1|29-34

ISSN: 2211-5552

Source: Current Molecular Imaging, Vol.4, Iss.1, 2015-04, pp. : 29-34

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Abstract

A protocol to load perfluoro-crown-ether (PFCE) nanoemulsion directly into yeast-derived glucan particles (GPs) was developed. It was observed that the PFCE encapsulation did not affect the 19F-MRI properties of the nanoemulsion that is currently in clinical trials. GPs loaded with PFCE nanoemulsion were taken up avidly by murine macrophages in vitro, resulting in a cellular uptake 150 % higher than the not GPs-entrapped nanoemulsion. Accordingly, a corresponding improvement in the 19F-MRI detection of the labelled cells can be obtained. The high biotolerability and versatility of GPs, make these microcarriers a promising option for designing of improved in vivo cellular imaging protocols.