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Moldon PA, Ermolinskiy PB, Lugovtsov AE, Timoshina PA, Lazareva EN, Surkov YI, Gurfinkel YI, Tuchin VV, Priezzhev AV. Influence of optical clearing agents on the scattering properties of human nail bed and blood microrheological properties: In vivo and in vitro study. JOURNAL OF BIOPHOTONICS 2024:e202300524. [PMID: 38462766 DOI: 10.1002/jbio.202300524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/10/2024] [Accepted: 02/24/2024] [Indexed: 03/12/2024]
Abstract
Optical clearing agents (OCAs) are substances that temporarily modify tissue's optical properties, enabling better imaging and light penetration. This study aimed to assess the impact of OCAs on the nail bed and blood using in vivo and in vitro optical methods. In the in vivo part, OCAs were applied to the nail bed, and optical coherence tomography and optical digital capillaroscopy were used to evaluate their effects on optical clearing and capillary blood flow, respectively. In the in vitro part, the collected blood samples were incubated with the OCA and blood aggregation properties were estimated using diffuse light scattering techniques. The results indicate that OCAs significantly influence the optical properties of the nail bed and blood microrheology. These findings suggest that OCAs hold promise for improving optical imaging and diagnostics, particularly for nail bed applications, and can modify blood microrheology.
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Affiliation(s)
- P A Moldon
- Department of Physics, Lomonosov Moscow State University, Moscow, Russia
| | - P B Ermolinskiy
- Department of Physics, Lomonosov Moscow State University, Moscow, Russia
| | - A E Lugovtsov
- Department of Physics, Lomonosov Moscow State University, Moscow, Russia
| | - P A Timoshina
- Institution of Physics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Laboratory of Biomedical Photoacoustic, Saratov State University, Saratov, Russia
| | - E N Lazareva
- Institution of Physics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Laboratory of Biomedical Photoacoustic, Saratov State University, Saratov, Russia
| | - Yu I Surkov
- Institution of Physics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Laboratory of Biomedical Photoacoustic, Saratov State University, Saratov, Russia
| | - Y I Gurfinkel
- Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russia
| | - V V Tuchin
- Institution of Physics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Laboratory of Biomedical Photoacoustic, Saratov State University, Saratov, Russia
| | - A V Priezzhev
- Department of Physics, Lomonosov Moscow State University, Moscow, Russia
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2
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The Glycerol-Induced Perfusion-Kinetics of the Cat Ovaries in the Follicular and Luteal Phases of the Cycle. Diagnostics (Basel) 2023; 13:diagnostics13030490. [PMID: 36766594 PMCID: PMC9914571 DOI: 10.3390/diagnostics13030490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/01/2023] Open
Abstract
The method of immersion optical clearing reduces light scattering in tissues, which improves the use of optical technologies in the practice of clinicians. In this work, we studied the optical and molecular diffusion properties of cat ovarian tissues in the follicular (F-ph) and luteal (L-ph) phases under the influence of glycerol using reflectance spectroscopy in a broad wavelength range from 200 to 800 nm. It was found that the reflectance and transmittance of the ovaries are significantly lower in the range from 200 to 600 nm than for longer wavelengths from 600 to 800 nm, and the efficiency of optical clearing is much lower for the ovaries in the luteal phase compared to the follicular phase. For shorter wavelengths, the following tissue transparency windows were observed: centered at 350 nm and wide (46 ± 5) nm, centered at 500 nm and wide (25 ± 7) nm for the F-ph state and with a center of 500 nm and a width of (21 ± 6) nm for the L-ph state. Using the free diffusion model, Fick's law of molecular diffusion and the Bouguer-Beer-Lambert radiation attenuation law, the glycerol/tissue water diffusion coefficient was estimated as D = (1.9 ± 0.2)10-6 cm2/s for ovaries at F-ph state and D = (2.4 ± 0.2)10-6 cm2/s-in L-ph state, and the time of complete dehydration of ovarian samples, 0.8 mm thick, as 22.3 min in F-ph state and 17.7 min in L-ph state. The ability to determine the phase in which the ovaries are stated, follicular or luteal, is also important in cryopreservation, new reproductive technologies and ovarian implantation.
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Maloshenok L, Abushinova G, Kazachkina N, Bogdanov A, Zherdeva V. Tet-Regulated Expression and Optical Clearing for In Vivo Visualization of Genetically Encoded Chimeric dCas9/Fluorescent Protein Probes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:940. [PMID: 36769948 PMCID: PMC9918104 DOI: 10.3390/ma16030940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 06/18/2023]
Abstract
The catalytically inactive mutant of Cas9 (dCas9) endonuclease has multiple biomedical applications, with the most useful being the activation/repression of transcription. dCas9 family members are also emerging as potential experimental tools for gene mapping at the level of individual live cells and intact tissue. We performed initial testing on a set of tools for Cas9-mediated visualization of nuclear compartments. We investigated doxycycline (Dox)-inducible (Tet-On) intracellular distribution of constructs encoding dCas9 orthologs from St. thermophilus (St) and N. meningitides (Nm) fused with EGFP and mCherry fluorescent proteins (FP) in human A549 cells. We also studied time-dependent expression of these chimeric fluorescent constructs (dCas9-FP) after Tet-On induction in live cells and compared it with the time course of dCas9-FP expression in experimental dCas9-FP-expressing tumor xenografts using a combination of fluorescence imaging and in vivo contrast-assisted magnetic resonance imaging for assessing the extent of tumor perfusion. In vivo Dox-induction of mCherry-chimera expression occurred in tumor xenografts as early as 24 h post-induction and was visualized by using optical clearing (OC) of the skin. OC via topical application of gadobutrol enabled high-contrast imaging of FP expression in tumor xenografts due to a 1.1-1.2-fold increase in FI in both the red and green channels.
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Affiliation(s)
- Liliya Maloshenok
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 33, Bldg. 2 Leninsky Ave., 119071 Moscow, Russia
- Vavilov Institute of General Genetics of the Russian Academy of Sciences, 117971 Moscow, Russia
| | - Gerel Abushinova
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 33, Bldg. 2 Leninsky Ave., 119071 Moscow, Russia
- Vavilov Institute of General Genetics of the Russian Academy of Sciences, 117971 Moscow, Russia
| | - Natalia Kazachkina
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 33, Bldg. 2 Leninsky Ave., 119071 Moscow, Russia
| | - Alexei Bogdanov
- Department of Radiology, UMass Chan Medical School, Worcester, MA 01665, USA
| | - Victoria Zherdeva
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 33, Bldg. 2 Leninsky Ave., 119071 Moscow, Russia
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Maloshenok LG, Abushinova GA, Ryazanova AY, Bruskin SA, Zherdeva VV. Visualizing the Nucleome Using the CRISPR–Cas9 System: From in vitro to in vivo. BIOCHEMISTRY (MOSCOW) 2023; 88:S123-S149. [PMID: 37069118 PMCID: PMC9940691 DOI: 10.1134/s0006297923140080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
One of the latest methods in modern molecular biology is labeling genomic loci in living cells using fluorescently labeled Cas protein. The NIH Foundation has made the mapping of the 4D nucleome (the three-dimensional nucleome on a timescale) a priority in the studies aimed to improve our understanding of chromatin organization. Fluorescent methods based on CRISPR-Cas are a significant step forward in visualization of genomic loci in living cells. This approach can be used for studying epigenetics, cell cycle, cellular response to external stimuli, rearrangements during malignant cell transformation, such as chromosomal translocations or damage, as well as for genome editing. In this review, we focused on the application of CRISPR-Cas fluorescence technologies as components of multimodal imaging methods for in vivo mapping of chromosomal loci, in particular, attribution of fluorescence signal to morphological and anatomical structures in a living organism. The review discusses the approaches to the highly sensitive, high-precision labeling of CRISPR-Cas components, delivery of genetically engineered constructs into cells and tissues, and promising methods for molecular imaging.
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Affiliation(s)
- Liliya G Maloshenok
- Bach Institute of Biochemistry, Federal Research Center for Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Gerel A Abushinova
- Bach Institute of Biochemistry, Federal Research Center for Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Alexandra Yu Ryazanova
- Bach Institute of Biochemistry, Federal Research Center for Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia
| | - Sergey A Bruskin
- Bach Institute of Biochemistry, Federal Research Center for Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Victoria V Zherdeva
- Bach Institute of Biochemistry, Federal Research Center for Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia.
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Silva HF, Martins IS, Bogdanov AA, Tuchin VV, Oliveira LM. Characterization of optical clearing mechanisms in muscle during treatment with glycerol and gadobutrol solutions. JOURNAL OF BIOPHOTONICS 2023; 16:e202200205. [PMID: 36101493 DOI: 10.1002/jbio.202200205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/18/2022] [Accepted: 09/09/2022] [Indexed: 06/15/2023]
Abstract
The recent increasing interest in the application of radiology contrasting agents to create transparency in biological tissues implies that the diffusion properties of those agents need evaluation. The comparison of those properties with the ones obtained for other optical clearing agents allows to perform an optimized agent selection to create optimized transparency in clinical applications. In this study, the evaluation and comparison of the diffusion properties of gadobutrol and glycerol in skeletal muscle was made, showing that although gadobutrol has a higher molar mass than glycerol, its low viscosity allows for a faster diffusion in the muscle. The characterization of the tissue dehydration and refractive index matching mechanisms of optical clearing was made in skeletal muscle, namely by the estimation of the diffusion coefficients for water, glycerol and gadobutrol. The estimated tortuosity values of glycerol (2.2) and of gadobutrol (1.7) showed a longer path-length for glycerol in the muscle.
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Affiliation(s)
- Hugo F Silva
- Centre of Innovation in Engineering and Industrial Technology (CIETI), Polytechnic of Porto, Porto, Portugal
| | - Inês S Martins
- Centre of Innovation in Engineering and Industrial Technology (CIETI), Polytechnic of Porto, Porto, Portugal
| | - Alexei A Bogdanov
- A. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
- Department of Radiology, UMass Chan Medical School, Worcester, Massachusetts, USA
- Department of Bioengineering and Bioinformatics, Moscow State University, Moscow, Russian Federation
| | - Valery V Tuchin
- A. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
- Science Medical Center, Saratov State University, Saratov, Russian Federation
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russian Federation
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control, FRC "Saratov Research Centre of Russian Academy of Sciences,", Saratov, Russian Federation
| | - Luís M Oliveira
- Centre of Innovation in Engineering and Industrial Technology (CIETI), Polytechnic of Porto, Porto, Portugal
- Physics Department, School of Engineering, Polytechnic of Porto, Porto, Portugal
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Konovalov AB, Vlasov VV, Samarin SI, Soloviev ID, Savitsky AP, Tuchin VV. Reconstruction of fluorophore absorption and fluorescence lifetime using early photon mesoscopic fluorescence molecular tomography: a phantom study. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:126001. [PMID: 36519075 PMCID: PMC9743783 DOI: 10.1117/1.jbo.27.12.126001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Abstract
SIGNIFICANCE Fluorescence molecular lifetime tomography (FMLT) plays an increasingly important role in experimental oncology. The article presents and experimentally verifies an original method of mesoscopic time domain FMLT, based on an asymptotic approximation to the fluorescence source function, which is valid for early arriving photons. AIM The aim was to justify the efficiency of the method by experimental scanning and reconstruction of a phantom with a fluorophore. The experimental facility included the TCSPC system, the pulsed supercontinuum Fianium laser, and a three-channel fiber probe. Phantom scanning was done in mesoscopic regime for three-dimensional (3D) reflectance geometry. APPROACH The sensitivity functions were simulated with a Monte Carlo method. A compressed-sensing-like reconstruction algorithm was used to solve the inverse problem for the fluorescence parameter distribution function, which included the fluorophore absorption coefficient and fluorescence lifetime distributions. The distributions were separated directly in the time domain with the QR-factorization least square method. RESULTS 3D tomograms of fluorescence parameters were obtained and analyzed using two strategies for the formation of measurement data arrays and sensitivity matrices. An algorithm is developed for the flexible choice of optimal strategy in view of attaining better reconstruction quality. Variants on how to improve the method are proposed, specifically, through stepped extraction and further use of a posteriori information about the object. CONCLUSIONS Even if measurement data are limited, the proposed method is capable of giving adequate reconstructions but their quality depends on available a priori (or a posteriori) information. Further research aims to improve the method by implementing the variants proposed.
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Affiliation(s)
- Alexander B. Konovalov
- Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics,” Snezhinsk, Russia
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Vitaly V. Vlasov
- Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics,” Snezhinsk, Russia
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Sergei I. Samarin
- Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics,” Snezhinsk, Russia
| | - Ilya D. Soloviev
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Alexander P. Savitsky
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Valery V. Tuchin
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
- Saratov State University, Saratov, Russia
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7
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Bucharskaya AB, Yanina IY, Atsigeida SV, Genin VD, Lazareva EN, Navolokin NA, Dyachenko PA, Tuchina DK, Tuchina ES, Genina EA, Kistenev YV, Tuchin VV. Optical clearing and testing of lung tissue using inhalation aerosols: prospects for monitoring the action of viral infections. Biophys Rev 2022; 14:1005-1022. [PMID: 36042751 PMCID: PMC9415257 DOI: 10.1007/s12551-022-00991-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/03/2022] [Indexed: 02/06/2023] Open
Abstract
Optical clearing of the lung tissue aims to make it more transparent to light by minimizing light scattering, thus allowing reconstruction of the three-dimensional structure of the tissue with a much better resolution. This is of great importance for monitoring of viral infection impact on the alveolar structure of the tissue and oxygen transport. Optical clearing agents (OCAs) can provide not only lesser light scattering of tissue components but also may influence the molecular transport function of the alveolar membrane. Air-filled lungs present significant challenges for optical imaging including optical coherence tomography (OCT), confocal and two-photon microscopy, and Raman spectroscopy, because of the large refractive-index mismatch between alveoli walls and the enclosed air-filled region. During OCT imaging, the light is strongly backscattered at each air–tissue interface, such that image reconstruction is typically limited to a single alveolus. At the same time, the filling of these cavities with an OCA, to which water (physiological solution) can also be attributed since its refractive index is much higher than that of air will lead to much better tissue optical transmittance. This review presents general principles and advances in the field of tissue optical clearing (TOC) technology, OCA delivery mechanisms in lung tissue, studies of the impact of microbial and viral infections on tissue response, and antimicrobial and antiviral photodynamic therapies using methylene blue (MB) and indocyanine green (ICG) dyes as photosensitizers.
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Affiliation(s)
- Alla B. Bucharskaya
- Centre of Collective Use, Saratov State Medical University n.a. V.I. Razumovsky, 112 B. Kazach’ya, Saratov, 410012 Russia
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Irina Yu. Yanina
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Sofia V. Atsigeida
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Vadim D. Genin
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Ekaterina N. Lazareva
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Nikita A. Navolokin
- Centre of Collective Use, Saratov State Medical University n.a. V.I. Razumovsky, 112 B. Kazach’ya, Saratov, 410012 Russia
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
| | - Polina A. Dyachenko
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Daria K. Tuchina
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Elena S. Tuchina
- Department of Biology, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
| | - Elina A. Genina
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Yury V. Kistenev
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
| | - Valery V. Tuchin
- Science Medical Center, Saratov State University, 83 Astrakhanskaya St, Saratov, 410012 Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin’s Av, Tomsk, 634050 Russia
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control, FRC “Saratov Scientific Centre of the Russian Academy of Sciences”, 24 Rabochaya St, Saratov, 410028 Russia
- A.N. Bach Institute of Biochemistry, FRC “Fundamentals of Biotechnology” of the Russian Academy of Sciences, 33-2 Leninsky Av, Moscow, 119991 Russia
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Kazachkina NI, Zherdeva VV, Meerovich IG, Saydasheva AN, Solovyev ID, Tuchina DK, Savitsky AP, Tuchin VV, Bogdanov AA. MR and fluorescence imaging of gadobutrol-induced optical clearing of red fluorescent protein signal in an in vivo cancer model. NMR IN BIOMEDICINE 2022; 35:e4708. [PMID: 35106848 DOI: 10.1002/nbm.4708] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 01/15/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Multimodality registration of optical and MR images in the same tissue volume in vivo may be enabled by MR contrast agents with an optical clearing (OC) effect. The goals of this study were to (a) investigate the effects of clinical MR contrast agent gadobutrol (GB) and its combinations as a potential OC agent assisting in fluorescence intensity (FI) imaging in vivo and (b) evaluate MRI as a tool for imaging of topical or systemic application of GB for the purpose of OC. Subcutaneous tumor xenografts expressing red fluorescent marker protein were used as disease models. MRI was performed at 1 T 1 H MRI using T1 -weighted 3D gradient-echo (T1w-3D GRE) sequences to measure time-dependent MR signal intensity changes by region of interest analysis after image segmentation. Topical application of 1.0 M or 0.7 M GB-containing OC mixture with water and dimethyl sulfoxide showed similar 30-40% increases of tumor FI during the initial 15 min. Afterwards, the OC effect of GB on FI and tumor/background FI ratio showed a decrease over time in the case of 1.0 M GB, unlike the 0.7 M GB mixture, which resulted in a steady increase of FI and tumor/background ratio for 15-60 min. The use of T1w-3D GRE MR pulse sequences showed that concentrated 1.0 M GB resulted in MR signal loss of the skin due to high magnetic susceptibility and that signal loss coincided with the OC effect. Intravenous injection of 0.3 mmol GB/kg resulted in a rapid but transient 40% increase of FI of the tumors. Overall, 1 T MRI enabled tracking of GB-containing OC compositions on the skin surface and tumor tissue, supporting the observation of a time-dependent FI increase in vivo.
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Affiliation(s)
- Natalia I Kazachkina
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Victoria V Zherdeva
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Irina G Meerovich
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Asiya N Saydasheva
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Ilya D Solovyev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Daria K Tuchina
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
- Saratov State University, Saratov, Russian Federation
- National Research Tomsk State University, Tomsk, Russian Federation
| | - Alexander P Savitsky
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Valery V Tuchin
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
- Saratov State University, Saratov, Russian Federation
- National Research Tomsk State University, Tomsk, Russian Federation
- Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russian Federation
| | - Alexei A Bogdanov
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
- Department of Radiology, UMASS Chan Medical School, Worcester, Massachusetts, USA
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Liu Q, Chen S, Hao L, Li C, Tian H, Gu H, Li Z, Wang L, Li Z. Preparation of fluorescent bimodal probe coupled with ultra-small superparamagnetic iron oxide particles. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2022. [DOI: 10.1016/j.jrras.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Naumova EV, Vladimirov YA, Tuchin VV, Namiot VA, Volodyaev IV. Methods of Studying Ultraweak Photon Emission from Biological Objects: III. Physical Methods. Biophysics (Nagoya-shi) 2022. [DOI: 10.1134/s0006350922010109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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11
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Tuchin VV, Genina EA, Tuchina ES, Svetlakova AV, Svenskaya YI. Optical clearing of tissues: Issues of antimicrobial phototherapy and drug delivery. Adv Drug Deliv Rev 2022; 180:114037. [PMID: 34752842 DOI: 10.1016/j.addr.2021.114037] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/23/2021] [Accepted: 10/28/2021] [Indexed: 02/08/2023]
Abstract
This review presents principles and novelties in the field of tissue optical clearing (TOC) technology, as well as application for optical monitoring of drug delivery and effective antimicrobial phototherapy. TOC is based on altering the optical properties of tissue through the introduction of immersion optical cleaning agents (OCA), which impregnate the tissue of interest. We also analyze various methods and kinetics of delivery of photodynamic agents, nanoantibiotics and their mixtures with OCAs into the tissue depth in the context of antimicrobial and antifungal phototherapy. In vitro and in vivo studies of antimicrobial phototherapies, such as photodynamic, photothermal plasmonic and photocatalytic, are summarized, and the prospects of a new TOC technology for effective killing of pathogens are discussed.
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12
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Zhu Y, Wang S, Xu H, He H, Pan M. Real-time vascular and IgA dynamics during Henoch-Schönlein purpura by in vivo fluorescent microscopy. BIOMEDICAL OPTICS EXPRESS 2021; 12:7826-7834. [PMID: 35003869 PMCID: PMC8713681 DOI: 10.1364/boe.442454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
Henoch-Schönlein purpura (HSP) is a typical cutaneous immune skin disease, usually diagnosed by invasive biopsy. In this study, we develop a noninvasive optical method by combining in vivo optical clearing, confocal microscopy and immune-staining together to present the real-time in vivo dynamics of blood vessels, IgA molecules, and T cells in a HSP rat model. The small vessels in the skin are found with acute damage and then hyperplasia, which enhances deposition of IgA complexes in blood vessels. The migrating T cells in blood vessels in HSP regions can be detected by setting fast line scanning in this method. Our method provides in vivo vascular, cellular, and molecular dynamics during HSP development and is thus of great potential in research and diagnosis of HSP and other skin diseases.
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Affiliation(s)
- Yujie Zhu
- Department of Dermatology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Department of Dermatology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shaoyang Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Xu
- Department of Dermatology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hao He
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Meng Pan
- Department of Dermatology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Zhang C, Feng W. Assessment of tissue-specific changes in structure and function induced by in vivo skin/skull optical clearing techniques. Lasers Surg Med 2021; 54:447-458. [PMID: 34750826 DOI: 10.1002/lsm.23489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/14/2021] [Accepted: 10/28/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND OBJECTIVES Newly developed in vivo skin and skull optical clearing techniques can greatly improve the optical imaging performance, showing great advantages and clinical prospects. However, there is a poor understanding of in vivo optical clearing-induced changes in the skin and skull. MATERIALS AND METHODS Here, we employed in vivo skin/skull optical clearing techniques to improve the optical coherence tomography (OCT) imaging quality. And we also used polarization-sensitive OCT to monitor the dynamic changes in the polarization characteristics of the skin and skull during in vivo optical clearing processes. Two-photon imaging was used to evaluate changes in tissue barrier function and structure. Additionally, Raman spectra were employed for assessing the changes of each component in the skin and skull before and after optical clearing treatment. RESULTS The results indicated that the polarization states of the skin and skull were altered with the usages of optical clearing agents. And the barrier permeability and collagen fiber distribution of them became disordered. Furthermore, the Raman spectra of tissue demonstrated that the applications of in vivo tissue optical clearing methods could lead to the reduction of proteins, lipids, and inorganic salts in these two organs. Interestingly, after recovery treatment, the structure and function of the skin and skull could almost recover to the initial states. CONCLUSION In vivo tissue optical clearing can lead to changes in the structure and function of tissue, which was reversible to some extent. This study plays an important role in revealing the underlying mechanisms of tissue optical clearing techniques; moreover, it is conducive to the development and optimization of a novel in vivo tissue optical clearing approaches in future.
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Affiliation(s)
- Chao Zhang
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong, Zhanjiang, China.,Zhanjiang Central Hospital, Guangdong Medical University, Guangdong, Zhanjiang, China
| | - Wei Feng
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong, Zhanjiang, China.,Zhanjiang Central Hospital, Guangdong Medical University, Guangdong, Zhanjiang, China
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14
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Semenova N, Tuchin VV. 3D models of the dynamics of cancer cells under external pressure. CHAOS (WOODBURY, N.Y.) 2021; 31:083122. [PMID: 34470224 DOI: 10.1063/5.0056764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
Skin cancer is one of the most frequent cancers worldwide. Recently, it has been shown that the tumor proliferation rate in skin and its dynamics can be changed by an osmotic pressure. However, these findings are rather unstructured. A weak pressure can slow down the tumor growth, while a very high pressure can, on the contrary, lead to accelerated growth and metastases. The magnitude and spatial distribution of osmotic pressures in tumors at present cannot be measured experimentally. Therefore, it is of particular interest to find appropriate models that would simulate the effects of additional osmotic pressures in skin and assess the features of its implementation. In this paper, we suggest an improved model based on the principles of the conventional hydrodynamic model for macrophase separations, which allows one to include not only the properties of healthy and cancer cells but also the microenvironment. We study and analyze the proliferation of cancer cells in 3D models of the epidermal layer of skin under an osmotic pressure. There are two suggested 3D models that are based on the same principles: (1) cellular cubic lattice and (2) cell spheroid. This allows expanding the application of the model depending on a given task. Here, we are focused on the study of melanoma at an early stage when there are not many cancer cells. Additional compressive and expansive pressures are added to the central part of the system. Both systems demonstrate similar results in slowing down the rate of tumor growth with a small pressure.
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Affiliation(s)
- Nadezhda Semenova
- Department of Fundamental Medicine and Medical Technology, Institute of Physics, Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | - Valery V Tuchin
- Laboratory of Biomedical Photoacoustics, Science Medical Center, Saratov State University, 112A Bolshaya Kazachya, Saratov 410012, Russia
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