Volume 13, Issue 11 e201960249
FULL ARTICLE

Magnetic resonance contrast agents in optical clearing: Prospects for multimodal tissue imaging

Daria K. Tuchina

Daria K. Tuchina

Saratov State University, Saratov, Russia

Tomsk State University, Tomsk, Russia

А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia

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Irina G. Meerovich

Corresponding Author

Irina G. Meerovich

А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia

Correspondence

Irina G. Meerovich, А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 33 (build. 2) Leninsky prospect, Moscow 119071, Russia.

Email: [email protected]

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Olga A. Sindeeva

Olga A. Sindeeva

Saratov State University, Saratov, Russia

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Victoria V. Zherdeva

Victoria V. Zherdeva

А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia

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Alexander P. Savitsky

Alexander P. Savitsky

А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia

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Alexei A. Bogdanov Jr

Alexei A. Bogdanov Jr

А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia

University of Massachusetts Medical School, Worcester, Massachusetts, USA

Department of Bioengineering and Bioinformatics, Moscow State University, Moscow, Russia

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Valery V. Tuchin

Valery V. Tuchin

Saratov State University, Saratov, Russia

Tomsk State University, Tomsk, Russia

А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia

Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russia

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First published: 20 July 2020
Citations: 21

Funding information: Government of the Russian Federation, Grant/Award Number: 14.W03.31.0023

Abstract

Skin optical clearing effect ex vivo and in vivo was achieved by topical application of low molecular weight paramagnetic magnetic resonance contrast agents. This novel feature has not been explored before. By using collimated transmittance the diffusion coefficients of three clinically used magnetic resonance contrast agents, that is Gadovist, Magnevist and Dotarem as well as X-ray contrast agent Visipaque in mouse skin were determined ex vivo as (4.29 ± 0.39) × 10−7 cm2/s, (5.00 ± 0.72) × 10−7 cm2/s, (3.72 ± 0.67) × 10−7 cm2/s and (1.64 ± 0.18) × 10−7 cm2/s, respectively. The application of gadobutrol (Gadovist) resulted in efficient optical clearing that in general, was superior to other contrast agents tested and allowed to achieve: (a) more than 12-fold increase of transmittance over 10 minutes after application ex vivo; (b) markedly improved images of skin architecture obtained with optical coherence tomography; (c) an increase of the fluorescence intensity/background ratio in TagRFP-red fluorescent marker protein expressing tumor by five times after 15 minutes application into the skin in vivo. The obtained results have immediate implications for multimodality imaging because many contrast agents are capable of simultaneously enhancing the contrast of multiple imaging modalities.image

CONFLICT OF INTEREST

The authors declare no competing financial interest.

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