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Yanina IY, Tanikawa Y, Genina EA, Dyachenko PA, Tuchina DK, Bashkatov AN, Dolotov LE, Tarakanchikova YV, Terentuk GS, Navolokin NA, Bucharskaya AB, Maslyakova GN, Iga Y, Takimoto S, Tuchin VV. Immersion optical clearing of adipose tissue in rats: ex vivo and in vivo studies. JOURNAL OF BIOPHOTONICS 2022; 15:e202100393. [PMID: 35340116 DOI: 10.1002/jbio.202100393] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Optical clearing (OC) of adipose tissue has not been studied enough, although it can be promising in medical applications, including surgery and cosmetology, for example, to visualize blood vessels or increase the permeability of tissues to laser beams. The main objective of this work is to develop technology for OC of abdominal adipose tissue in vivo using hyperosmotic optical clearing agents (OCAs). The maximum OC effect (77%) was observed for ex vivo rat adipose tissue samples exposed to OCA on fructose basis for 90 minutes. For in vivo studies, the maximum effect of OC (65%) was observed when using OCA based on diatrizoic acid and dimethylsulfoxide for 120 minutes. Histological analysis showed that in vivo application of OCAs may induce a limited local necrosis of fat cells. The efficiency of OC correlated with local tissue damage through cell necrosis due to accompanied cell lipolysis.
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Affiliation(s)
- Irina Yu Yanina
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | | | - Elina A Genina
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Polina A Dyachenko
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Daria K Tuchina
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Alexey N Bashkatov
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Leonid E Dolotov
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
| | | | | | - Nikita A Navolokin
- Science Medical Center, Saratov State University, Saratov, Russia
- Research-Scientific Institute of Fundamental and Clinic Uronephrology, Saratov State Medical University, Saratov, Russia
| | - Alla B Bucharskaya
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Science Medical Center, Saratov State University, Saratov, Russia
- Research-Scientific Institute of Fundamental and Clinic Uronephrology, Saratov State Medical University, Saratov, Russia
| | - Galina N Maslyakova
- Science Medical Center, Saratov State University, Saratov, Russia
- Research-Scientific Institute of Fundamental and Clinic Uronephrology, Saratov State Medical University, Saratov, Russia
| | | | | | - Valery V Tuchin
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Science Medical Center, Saratov State University, Saratov, 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", Saratov, Russia
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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: 19] [Impact Index Per Article: 9.5] [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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Huang Y, Li X, Wu Y, Zhao Q, Huang M, Liang X. Involvement of nitrosative stress cytotoxicity induced by CdTe quantum dots in human vascular endothelial cells. J Toxicol Sci 2021; 46:273-282. [PMID: 34078834 DOI: 10.2131/jts.46.273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Quantum dots (QDs) are new types of fluorescent nanomaterials which can be utilized as ideal agents for intracellular tracking, drug delivery, biomedical imaging and diagnosis. It is urgent to understand their potential toxicity and the interactions with the toxin-susceptible vascular system, especially vascular endothelial cells. In this study, we intended to explore whether the cytotoxicity of CdTe (cadmium telluride) QDs was partly induced by nitrosative stress in vascular endothelial cells. Our results showed that the intracellular amount of CdTe QDs was gradually increased in a dose- and time-dependent manner, and a concentration-dependent decrease in viability were observed when incubated with CdTe QDs of 20-80 nM. The peroxynitrite level was significantly up-regulated by QDs treatment, which indicated the nitrosative stress was activated. Furthermore, nitrotyrosine level was increased after 24 hr CdTe QDs exposure in a dose-dependent manner, which suggested that CdTe QDs-induced nitrosative stress was associated with tyrosine nitration in EA.hy926. In addition, CdTe QDs induced EA.hy926 apoptosis, and the percentage of cells with low Δψm was increased after CdTe QDs treatment, indicating the mitochondrion depolarization was induced. The increased ROS fluorescence was observed in a QDs dose-dependent manner, which suggested that the oxidative stress was also involved in the CdTe QDs-induced endothelial cytotoxicity. Our work provided experimental evidence into QDs toxicity and potential vascular risks induced by nitrosative stress for the future applications of QDs.
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Affiliation(s)
- Yujie Huang
- Key Laboratory of Drug Clinical Research and Evaluation Technology of Zhejiang Province, The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Xiaozhuan Li
- Center Laboratory, The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Yahong Wu
- Center Laboratory, The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Qingwei Zhao
- Key Laboratory of Drug Clinical Research and Evaluation Technology of Zhejiang Province, The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Mingzhu Huang
- Key Laboratory of Drug Clinical Research and Evaluation Technology of Zhejiang Province, The First Affiliated Hospital, Zhejiang University School of Medicine, China.,Center Laboratory, The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Xingguang Liang
- Center Laboratory, The First Affiliated Hospital, Zhejiang University School of Medicine, China
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Zaytsev SM, Svenskaya YI, Lengert EV, Terentyuk GS, Bashkatov AN, Tuchin VV, Genina EA. Optimized skin optical clearing for optical coherence tomography monitoring of encapsulated drug delivery through the hair follicles. JOURNAL OF BIOPHOTONICS 2020; 13:e201960020. [PMID: 31975521 DOI: 10.1002/jbio.201960020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 11/25/2019] [Accepted: 01/19/2020] [Indexed: 06/10/2023]
Abstract
Hair follicles (HF) represent a drug delivery reservoir for improved treatment of skin disorders. Although various particulate systems play an important role in HF-targeting, their optical monitoring in skin is challenging due to strong light scattering. Optical clearing is an effective approach allowing the increasing of particle detection depth in skin. The enhancement of optical probing depth (OPD) and optical detection depth (ODD) of particle localization using optical coherence tomography (OCT) was evaluated under application of various optical clearing agents (OCAs) together with skin permeability enhancers ex vivo in rats. Efficient OPD increasing was demonstrated for all investigated OCAs. However, skin dehydration under action of hyperosmotic agents led to the worsening of OCT-contrast in dermis decreasing the ODD. Lipophilic agents provided optical clearing of epidermis without its dehydration. The highest ODD was obtained at application of a PEG-400/oleic acid mixture. This OCA was tested in vivo showing beneficial ODD and OPD enhancement.
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