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Shirmanova MV, Gavrina AI, Kovaleva TF, Dudenkova VV, Zelenova EE, Shcheslavskiy VI, Mozherov AM, Snopova LB, Lukyanov KA, Zagaynova EV. Insight into redox regulation of apoptosis in cancer cells with multiparametric live-cell microscopy. Sci Rep 2022; 12:4476. [PMID: 35296739 PMCID: PMC8927414 DOI: 10.1038/s41598-022-08509-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 02/25/2022] [Indexed: 02/07/2023] Open
Abstract
Cellular redox status and the level of reactive oxygen species (ROS) are important regulators of apoptotic potential, playing a crucial role in the growth of cancer cell and their resistance to apoptosis. However, the relationships between the redox status and ROS production during apoptosis remain poorly explored. In this study, we present an investigation on the correlations between the production of ROS, the redox ratio FAD/NAD(P)H, the proportions of the reduced nicotinamide cofactors NADH and NADPH, and caspase-3 activity in cancer cells at the level of individual cells. Two-photon excitation fluorescence lifetime imaging microscopy (FLIM) was applied to monitor simultaneously apoptosis using the genetically encoded sensor of caspase-3, mKate2-DEVD-iRFP, and the autofluorescence of redox cofactors in colorectal cancer cells upon stimulation of apoptosis with staurosporine, cisplatin or hydrogen peroxide. We found that, irrespective of the apoptotic stimulus used, ROS accumulation correlated well with both the elevated pool of mitochondrial, enzyme-bound NADH and caspase-3 activation. Meanwhile, a shift in the contribution of bound NADH could develop independently of the apoptosis, and this was observed in the case of cisplatin. An increase in the proportion of bound NADPH was detected only in staurosporine-treated cells, this likely being associated with a high level of ROS production and their resulting detoxification. The results of the study favor the discovery of new therapeutic strategies based on manipulation of the cellular redox balance, which could help improve the anti-tumor activity of drugs and overcome apoptotic resistance.
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Affiliation(s)
- Marina V Shirmanova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia.
| | - Alena I Gavrina
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Tatiana F Kovaleva
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Varvara V Dudenkova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Ekaterina E Zelenova
- National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, 2nd Botkinsky proezd, 3, Moscow, Russia, 125284
| | - Vladislav I Shcheslavskiy
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia.,Becker&Hickl GmbH, Nunsdorfer Ring 7-9, 12277, Berlin, Germany
| | - Artem M Mozherov
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Ludmila B Snopova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Konstantin A Lukyanov
- Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow, Russia, 121205
| | - Elena V Zagaynova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia.,Lobachevsky State University of Nizhny Novgorod, Gagarin Avenue 23, Nizhny Novgorod, Russia, 603950
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2
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Shirmanova MV, Gorbachev DA, Sarkisyan KS, Parnes AP, Gavrina AI, Polozova AV, Kovaleva TF, Snopova LB, Dudenkova VV, Zagaynova EV, Lukyanov KA. FUCCI-Red: a single-color cell cycle indicator for fluorescence lifetime imaging. Cell Mol Life Sci 2021; 78:3467-3476. [PMID: 33555392 PMCID: PMC11073227 DOI: 10.1007/s00018-020-03712-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 06/19/2020] [Revised: 10/23/2020] [Accepted: 11/16/2020] [Indexed: 01/23/2023]
Abstract
The phase of the cell cycle determines numerous aspects of cancer cell behaviour including invasiveness, ability to migrate and responsiveness to cytotoxic drugs. To non-invasively monitor progression of cell cycle in vivo, a family of genetically encoded fluorescent indicators, FUCCI (fluorescent ubiquitination-based cell cycle indicator), has been developed. Existing versions of FUCCI are based on fluorescent proteins of two or more different colors fused to cell-cycle-dependent degradation motifs. Thus, FUCCI-expressing cells emit light of different colors in different phases providing a robust way to monitor cell cycle progression by fluorescence microscopy and flow cytometry but limiting the possibility to simultaneously visualize other markers. To overcome this limitation, we developed a single-color variant of FUCCI, called FUCCI-Red, which utilizes two red fluorescent proteins with distinct fluorescence lifetimes, mCherry and mKate2. Similarly to FUCCI, these proteins carry cell cycle-dependent degradation motifs to resolve G1 and S/G2/M phases. We showed utility of FUCCI-Red by visualizing cell cycle progression of cancer cells in 2D and 3D cultures and monitoring development of tumors in vivo by confocal and fluorescence lifetime imaging microscopy (FLIM). Single-channel registration and red-shifted spectra make FUCCI-Red sensor a promising instrument for multiparameter in vivo imaging applications, which was demonstrated by simultaneous detection of cellular metabolic state using endogenous fluorescence in the blue range.
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Affiliation(s)
- Marina V Shirmanova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Dmitry A Gorbachev
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205, Moscow, Russia
| | - Karen S Sarkisyan
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Alina P Parnes
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Alena I Gavrina
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Anastasia V Polozova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Tatyana F Kovaleva
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Ludmila B Snopova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Varvara V Dudenkova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
| | - Elena V Zagaynova
- Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005, Nizhny Novgorod, Russia
- Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603950, Nizhny Novgorod, Russia
| | - Konstantin A Lukyanov
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205, Moscow, Russia.
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3
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Lukina MM, Dudenkova VV, Shimolina LE, Snopova LB, Zagaynova EV, Shirmanova MV. In vivo metabolic and SHG imaging for monitoring of tumor response to chemotherapy. Cytometry A 2018; 95:47-55. [PMID: 30329217 DOI: 10.1002/cyto.a.23607] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/15/2018] [Accepted: 08/20/2018] [Indexed: 12/12/2022]
Abstract
Although chemotherapy remains one of the main types of treatment for cancer, treatment failure is a frequent occurrence, emphasizing the need for new approaches to the early assessment of tumor response. The aim of this study was to search for indicators based on optical imaging of cellular metabolism and of collagen in tumors in vivo that enable evaluation of their response to chemotherapy. The study was performed on a mouse colorectal cancer model with the use of cisplatin, paclitaxel, and irinotecan. The metabolic activity of the tumor cells was assessed using fluorescence lifetime imaging of the metabolic cofactor reduced nicotinamide adenine dinucleotide (phosphate), NAD(P)H. Second harmonic generation (SHG) imaging was used to analyze the extent and properties of collagen within the tumors. We detected an early decrease in the free/bound NAD(P)H ratio in all treated tumors, indicating a shift toward a more oxidative metabolism. Monitoring of collagen showed an early increase in the amount of collagen followed by an increase in the extent of its orientation in tumors treated with cisplatin and paclitaxel, and decrease in collagen content in the case of irinotecan. Our study suggests that changes in cellular metabolism and fibrotic stroma organization precede morphological alterations and tumor size reduction, and that this indicates that NAD(P)H and collagen can be considered as intrinsic indicators of the response to treatment. This is the first time that these parameters have been investigated in tumors in vivo in the course of chemotherapy with drugs having different mechanisms of action. © 2018 International Society for Advancement of Cytometry.
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Affiliation(s)
- Maria M Lukina
- Institute of Biomedical Technologies, Privolzhskiy Research Medical University, Nizhny Novgorod, Russia.,Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Varvara V Dudenkova
- Institute of Biomedical Technologies, Privolzhskiy Research Medical University, Nizhny Novgorod, Russia.,Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Lyubov' E Shimolina
- Institute of Biomedical Technologies, Privolzhskiy Research Medical University, Nizhny Novgorod, Russia.,Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Ludmila B Snopova
- Institute of Biomedical Technologies, Privolzhskiy Research Medical University, Nizhny Novgorod, Russia
| | - Elena V Zagaynova
- Institute of Biomedical Technologies, Privolzhskiy Research Medical University, Nizhny Novgorod, Russia
| | - Marina V Shirmanova
- Institute of Biomedical Technologies, Privolzhskiy Research Medical University, Nizhny Novgorod, Russia
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Elagin VV, Shakhova MA, Sirotkina MA, Shakhov AV, Pavlova NP, Snopova LB, Bredikhin VI, Kamensky VA. Can "Indirect" Contact Laser Surgery be Used for Fluorescence-Image Guided Tumor Resections? Preliminary Results. Technol Cancer Res Treat 2018; 17:1533033818805715. [PMID: 30343643 PMCID: PMC6198398 DOI: 10.1177/1533033818805715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Ensuring the complete removal of tumor tissue is the main challenge during resection operations. Recently, a technique of “indirect” contact laser surgery has been developed. In this study we assess the possibility of using such surgery for fluorescence image-guided tumor resection. Mouse colon adenocarcinoma CT-26 cells stably expressing the fluorescent protein mKate-2 was used as the tumor model. Resections of the tumor nodes were performed with either a scalpel blade, a laser scalpel with a bare tip, or a laser scalpel with a strongly absorbing coating on the fiber tip. Tumor-positive resection margins were detected using an IVIS Spectrum fluorescence imaging system. After tumor resection with the scalpel blade over half of the animals needed one additional resection to remove residual tumor cells. Animals in this group showed tumor recurrence within 7 days. Fluorescence imaging of the tumor bed, performed after resection to assess the presence of tumor cell clusters, was sufficiently effective only with a bloodless resection. The laser scalpels both with the bare tip and with the strongly absorbing coating on the tip provided such bloodless tumor resection in contact mode. Fewer animals required additional resections when the bare tipped scalpel was used and this also resulted in a reduction in tumor recurrence. After resections were carried out with the laser scalpel with the strongly absorbing coating on the tip, fluorescence was detected in the operative field and this led to undertaking additional resections, although subsequent investigation suggested that this was “false” fluorescence, resulting from the effects of the scalpel rather than the presence of residual tumor cells. The method of laser resection with a strongly absorbing coating on the tip therefore did not appear to demonstrate definite advantages over laser resection with a bare tip when removing tumors.
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Affiliation(s)
- Vadim V Elagin
- 1 Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation.,2 Institute of Applied Physics Russian Academy of Sciences, Nizhny Novgorod, Russian Federation
| | - Maria A Shakhova
- 1 Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation
| | - Marina A Sirotkina
- 1 Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation
| | - Andrey V Shakhov
- 1 Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation
| | - Nadezhda P Pavlova
- 1 Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation
| | - Ludmila B Snopova
- 1 Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation
| | - Vladimir I Bredikhin
- 2 Institute of Applied Physics Russian Academy of Sciences, Nizhny Novgorod, Russian Federation
| | - Vladislav A Kamensky
- 2 Institute of Applied Physics Russian Academy of Sciences, Nizhny Novgorod, Russian Federation
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5
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Gavrina AI, Shirmanova MV, Aksenova NA, Yuzhakova DV, Snopova LB, Solovieva AB, Тimashev PS, Dudenkova VV, Zagaynova EV. Photodynamic therapy of mouse tumor model using chlorin e6- polyvinyl alcohol complex. Journal of Photochemistry and Photobiology B: Biology 2018; 178:614-622. [DOI: 10.1016/j.jphotobiol.2017.12.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/08/2017] [Accepted: 12/12/2017] [Indexed: 01/25/2023]
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6
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Shirmanova MV, Druzhkova IN, Lukina MM, Matlashov ME, Belousov VV, Snopova LB, Prodanetz NN, Dudenkova VV, Lukyanov SA, Zagaynova EV. Intracellular pH imaging in cancer cells in vitro and tumors in vivo using the new genetically encoded sensor SypHer2. Biochim Biophys Acta Gen Subj 2015; 1850:1905-11. [PMID: 25964069 DOI: 10.1016/j.bbagen.2015.05.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 04/30/2015] [Accepted: 05/04/2015] [Indexed: 02/04/2023]
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7
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Kuznetsova DS, Karabut MM, Elagin VV, Shakhova MA, Bredikhin VI, Baskina OS, Snopova LB, Shakhov AV, Kamensky VA. Comparative Analysis of Biotissue Laser Resection Using Strongly Absorbing Optical Fiber Tips. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/opj.2015.51001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Ryumina AP, Serebrovskaya EO, Shirmanova MV, Snopova LB, Kuznetsova MM, Turchin IV, Ignatova NI, Klementieva NV, Fradkov AF, Shakhov BE, Zagaynova EV, Lukyanov KA, Lukyanov SA. Flavoprotein miniSOG as a genetically encoded photosensitizer for cancer cells. Biochim Biophys Acta Gen Subj 2013; 1830:5059-67. [PMID: 23876295 DOI: 10.1016/j.bbagen.2013.07.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 06/20/2013] [Accepted: 07/15/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Genetically encoded photosensitizers are a promising optogenetic instrument for light-induced production of reactive oxygen species in desired locations within cells in vitro or whole body in vivo. Only two such photosensitizers are currently known, GFP-like protein KillerRed and FMN-binding protein miniSOG. In this work we studied phototoxic effects of miniSOG in cancer cells. METHODS HeLa Kyoto cell lines stably expressing miniSOG in different localizations, namely, plasma membrane, mitochondria or chromatin (fused with histone H2B) were created. Phototoxicity of miniSOG was tested on the cells in vitro and tumor xenografts in vivo. RESULTS Blue light induced pronounced cell death in all three cell lines in a dose-dependent manner. Caspase 3 activation was characteristic of illuminated cells with mitochondria- and chromatin-localized miniSOG, but not with miniSOG in the plasma membrane. In addition, H2B-miniSOG-expressing cells demonstrated light-induced activation of DNA repair machinery, which indicates massive damage of genomic DNA. In contrast to these in vitro data, no detectable phototoxicity was observed on tumor xenografts with HeLa Kyoto cell lines expressing mitochondria- or chromatin-localized miniSOG. CONCLUSIONS miniSOG is an excellent genetically encoded photosensitizer for mammalian cells in vitro, but it is inferior to KillerRed in the HeLa tumor. GENERAL SIGNIFICANCE This is the first study to assess phototoxicity of miniSOG in cancer cells. The results suggest an effective ontogenetic tool and may be of interest for molecular and cell biology and biomedical applications.
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Affiliation(s)
- Alina P Ryumina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 16/10 Miklukho-Maklaya St., 117997 Moscow, Russia
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Shirmanova MV, Serebrovskaya EO, Lukyanov KA, Snopova LB, Sirotkina MA, Prodanetz NN, Bugrova ML, Minakova EA, Turchin IV, Kamensky VA, Lukyanov SA, Zagaynova EV. Phototoxic effects of fluorescent protein KillerRed on tumor cells in mice. J Biophotonics 2013; 6:283-90. [PMID: 22696211 DOI: 10.1002/jbio.201200056] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 05/12/2012] [Accepted: 05/21/2012] [Indexed: 06/01/2023]
Abstract
KillerRed is known to be a unique red fluorescent protein displaying strong phototoxic properties. Its effectiveness has been shown previously for killing bacterial and cancer cells in vitro. Here, we investigated the photototoxicity of the protein on tumor xenografts in mice. HeLa Kyoto cell line stably expressing KillerRed in mitochondria and in fusion with histone H2B was used. Irradiation of the tumors with 593 nm laser led to photobleaching of KillerRed indicating photosensitization reaction and caused significant destruction of the cells and activation of apoptosis. The portion of the dystrophically changed cells increased from 9.9% to 63.7%, and the cells with apoptosis hallmarks from 6.3% to 14%. The results of this study suggest KillerRed as a potential genetically encoded photosensitizer for photodynamic therapy of cancer.
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Affiliation(s)
- Marina V Shirmanova
- Nizhny Novgorod State Medical Academy, 603005 Minin Sq., 10/1, Nizhny Novgorod, Russia.
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10
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Orlova AG, Maslennikova AV, Golubiatnikov GI, Kamenskiĭ VA, Shakhova NM, Babaev AA, Snopova LB, Ivanova IP, Plekhanov VI, Prianikova TI, Turchin IV. [Noninvasive estimation of the oxygen state of experimental tumor by diffuse optical spectroscopy]. Biofizika 2011; 56:349-355. [PMID: 21542365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The potentialities of diffuse optical spectroscopy for the noninvasive estimation of the oxygen state of experimental tumors have been demonstrated. The distribution of total, oxygenated and deoxygenated hemoglobin, as well as the level oxygen saturation of blood have been shown using two tumor models differing in the histological structure and functional characteristics. The results obtained by the optical method have been verified by immunohistochemical examination of tissue specimens with the exogenous hypoxia marker pimonidazole.
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Maslennikova AV, Orlova AG, Golubiatnikov GY, Kamensky VA, Shakhova NM, Babaev AA, Snopova LB, Ivanova IP, Plekhanov VI, Prianikova TI, Turchin IV. Comparative study of tumor hypoxia by diffuse optical spectroscopy and immunohistochemistry in two tumor models. J Biophotonics 2010; 3:743-51. [PMID: 20715133 DOI: 10.1002/jbio.201000060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The capabilities of diffuse optical spectroscopy for noninvasive assessing of oxygen status in experimental tumors have been demonstrated. Specific features of the distribution of total hemoglobin, oxygenated hemoglobin, deoxygenated hemoglobin, and blood-oxygen saturation were shown on two tumor models having different histological structure and functional characteristics. The results obtained by the optical technique were verified by immunohistochemical study of tissue samples marked with exogenous marker of hypoxia--pimonidazole.
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Affiliation(s)
- Anna V Maslennikova
- Institute of Applied Physics RAS, 46 Ulyanov Str., Nizhny Novgorod, Russia; Nizhny Novgorod State Medical Academy, 10/1 Minin Sqr., Nizhny Novgorod, Russia.
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Sirotkina MA, Elagin VV, Shirmanova MV, Bugrova ML, Snopova LB, Kamensky VA, Nadtochenko VA, Denisov NN, Zagaynova EV. OCT-guided laser hyperthermia with passively tumor-targeted gold nanoparticles. J Biophotonics 2010; 3:718-727. [PMID: 20626005 DOI: 10.1002/jbio.201000061] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The goal of this study is the development of a method of local laser hyperthermia with gold nanoparticles under noninvasive optical monitoring of nanoparticle accumulation in tumor tissue in vivo. Bifunctional plasmon resonant nanoparticles that are optimal for OCT diagnostics and laser heating at the wavelength of 810 nm were used in the study. The OCT examination showed that the accumulation of gold nanoparticles in the tumor invading into skin was maximal 4-5 h after intravenous injection. It was demonstrated that nanoparticle accumulation in tumor allowed more local heating and enhanced thermal sensitivity of tumor tissue. Laser hyperthermia that heated tumor up to 44-45 °C at maximum nanoparticle accumulation induced apoptotic death of tumor cells and inhibited tumor growth by 104% on the 5th day after treatment.
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Affiliation(s)
- Marina A Sirotkina
- Nizhny Novgorod State Medical Academy, 603005 Minin Sq., 10/1, Nizhny Novgorod, Russia
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Sapozhnikova VV, Kamensky VA, Kuranov RV, Kutis I, Snopova LB, Myakov AV. In vivo visualization of Tradescantia leaf tissue and monitoring the physiological and morphological states under different water supply conditions using optical coherence tomography. Planta 2004; 219:601-609. [PMID: 15133665 DOI: 10.1007/s00425-004-1276-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2003] [Accepted: 03/15/2004] [Indexed: 05/24/2023]
Abstract
The optical coherence tomography (OCT) capabilities of plants were evaluated using leaves of Tradescantia pallida (Rose) D. Hunt. The internal structure of the leaf tissues was visualized in vivo and the physiological and morphological states of the tissues under different water supply conditions were monitored using OCT. The OCT technique provides non-invasive two-dimensional images directly on intact plants. The acquisition time of a two-dimensional image with a size of 200x200 pixels and a spatial resolution of 15 microm is 1-3 s. It was shown that OCT is a useful tool for monitoring the physiological and morphological states of plant tissues supplied with varying amounts of water and under the influence of different chemical factors.
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Affiliation(s)
- Veronika V Sapozhnikova
- Institute of Applied Physics of the Russian Academy of Science, 46 Ulyanov Street, 603950, Nizhny Novgorod.
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Gladkova ND, Shakhova NM, Shakhov BE, Snopova LB. [Optic coherent tomography: a new high-resolution technology of visualization of tissue structures. Communication II. Optical images of benign and malignant entities]. Vestn Rentgenol Radiol 2004:44-54. [PMID: 15458273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
This is the second communication of a series of publications on Russian studies in the field of optical coherent tomography (OCT), the newest noninvasive highly resolving technology of visualization of the structure of biological tissues. By using the investing tissues as an example, this paper demonstrates the universal types of changes in their optical properties. Optimal images permit differentiate benign and malignant processes with a high degree of diagnostic accuracy. Diverse benign processes occurring in the epithelium are detected on the OCT images as changes in its height, the scattering properties and stroke of a basilar membrane. The absence of any structure on the image is the main OCT criterion for malignancy. The diagnostic efficiency of OCT is high in recognizing neoplasia of various mucous membranes: the sensitivity of the technique is 77-98%; its specificity and diagnostic accuracy are 71-96 and 81-87%, respectively.
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15
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Fomina IV, Gladkova ND, Leont'ev VK, Urutina MN, Gazhva SI, Snopova LB, Gelikonov VM, Kamenskiĭ VA. [Optical coherence tomography in the evaluation of the oral cavity mucosa. Part II. Benign and malignant diseases]. Stomatologiia (Mosk) 2004; 83:25-32. [PMID: 15340301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
This paper is the last one in the series of publications on the investigation of the capability of Optical Coherence Tomography (OCT) in diagnostic of state of oral cavity mucosa. Part II demonstrates the diversity of optical images, different forms specific to leukoplakia, lichen planus and squamous cell carcinoma on the basis of the investigation of 56 pathologic lesions of 43 patients with precancer and cancer of oral cavity. The OCT sensitivity in malignancy detection in oral cavity is high - 83%, specificity is 98%, and accuracy is 81%. The kappa coefficient of interobserver agreement is 0.76.
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Fomina IV, Urutina MN, Leont'ev VK, Gladkova ND, Gazhva SI, Snopova LB, Gelikonov GV, Kamenskiĭ VA. [Optic coherent tomography in evaluation of the buccal mucosa status. Communication 1. Normal mucosa]. Stomatologiia (Mosk) 2004; 83:15-21. [PMID: 15159742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
The potentialities of optic coherent tomography (OCT) in the diagnosis of the buccal mucosa status were studied and the results are presented in two communications. Communication 1 demonstrates the tomograms of various parts of normal buccal mucosa and methods of their identification as exemplified by analysis of 1180 in vivo and 43 ex vivo OCT images. Using parallel histo-tomographic comparison, the authors distinguished the main signs of optic images, depending on the type of epithelium and characteristic features of the connective tissue stroma in various parts of the buccal mucosa. These signs are essential for understanding the optic images of the mucosa in disease, which will be shown in communication 2.
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Zagaynova EV, Streltsova OS, Gladkova ND, Snopova LB, Gelikonov GV, Feldchtein FI, Morozov AN. In vivo optical coherence tomography feasibility for bladder disease. J Urol 2002; 167:1492-6. [PMID: 11832776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
PURPOSE Optical coherence tomography is a new imaging modality capable of imaging luminal surface of biological tissue in the near infrared range with a spatial resolution close to the cellular level. We identified characteristic optical coherence tomography patterns for nonproliferative and proliferative inflammation, and malignant alterations of the bladder. MATERIALS AND METHODS Optical coherence tomography was performed to image the bladder of 66 patients. The probe passed through the operating channel of a cystoscope and was pressed onto the mucosal site of interest. A mucosal biopsy of the image site was obtained. Optical coherence tomography was used to construct 680 images of the bladder and the images were compared with histology slides. RESULTS Optical coherence tomography images of normal bladder showed 3 layers, namely the mucosa or transitional epithelium, submucosa and smooth muscle. In exudative processes there were poor light scattering areas in the connective tissue layer. Images of bladders with proliferative cystitis revealed nonuniform thickening of the epithelium or hyperplasia. Squamous metaplasia appeared as thicker and less transparent epithelium with a jagged boundary. Images of transitional cell carcinoma were characterized by the complete loss of a regular layered structure of the bladder wall and the penetration depth of optical imaging was slight. CONCLUSIONS This study provides the characteristic optical coherence tomography pattern of nonproliferative and proliferative inflammation, and the characteristic appearance of severe dysplasia and transitional cell carcinoma. This technique may be useful as a guide for biopsy and for assisting in establishing resection margins.
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Affiliation(s)
- Elena V Zagaynova
- Nizhny Novgorod State Medical Academy and Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia
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Shakhov AV, Terentjeva AB, Kamensky VA, Snopova LB, Gelikonov VM, Feldchtein FI, Sergeev AM. Optical coherence tomography monitoring for laser surgery of laryngeal carcinoma. J Surg Oncol 2001; 77:253-258. [PMID: 11473374 DOI: 10.1002/(issn)1096-9098] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
BACKGROUND AND OBJECTIVES The goal of this study is to apply a new bioimaging modality, the Optical Coherence Tomography (OCT), for intraoperative control in laser surgery of laryngeal carcinoma. STUDY DESIGN/MATERIALS AND METHODS We studied 26 patients with laryngeal carcinoma in situ and in T(1), T(2) stage. We used an endoscopic OCT device for imaging at a wavelength of 0.83 microm with the acquisition rate of approximately 0.5 frames/s for a single (200 x 200 pixel) tomogram. All patients were operated with a surgical YAG:Nd laser at two switchable wavelengths of 1.44 microm and 1.32 microm by laryngofissure, direct microlaryngoscopy, and fibrolaryngoscopy. RESULTS Information on structural alterations in laryngeal mucosa to the depth of 2 mm, obtained by OCT, makes it possible to precisely locate tumor borders, thus giving an opportunity to control the surgical treatment of laryngeal carcinoma. The YAG:Nd laser scalpel with wavelengths of 1.32 microm and 1.44 microm is successful in surgical procedures both in open and closed larynx due to efficient coagulation and minimization of collateral tissue damage area. Combination of the two wavelengths in the single laser unit and intraoperative OCT monitoring result is a new modality for minimally invasive larynx surgery. CONCLUSIONS OCT is promising to become a new diagnosing method of laryngeal carcinoma and a tool for laser treatment monitoring.
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Affiliation(s)
- A V Shakhov
- Nizhny Novgorod Medical Academy, Uljanov St. 46, Nizhny Novgorod, 603600, Russia
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Shakhov AV, Terentjeva AB, Kamensky VA, Snopova LB, Gelikonov VM, Feldchtein FI, Sergeev AM. Optical coherence tomography monitoring for laser surgery of laryngeal carcinoma. J Surg Oncol 2001; 77:253-8. [PMID: 11473374 DOI: 10.1002/jso.1105] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND AND OBJECTIVES The goal of this study is to apply a new bioimaging modality, the Optical Coherence Tomography (OCT), for intraoperative control in laser surgery of laryngeal carcinoma. STUDY DESIGN/MATERIALS AND METHODS We studied 26 patients with laryngeal carcinoma in situ and in T(1), T(2) stage. We used an endoscopic OCT device for imaging at a wavelength of 0.83 microm with the acquisition rate of approximately 0.5 frames/s for a single (200 x 200 pixel) tomogram. All patients were operated with a surgical YAG:Nd laser at two switchable wavelengths of 1.44 microm and 1.32 microm by laryngofissure, direct microlaryngoscopy, and fibrolaryngoscopy. RESULTS Information on structural alterations in laryngeal mucosa to the depth of 2 mm, obtained by OCT, makes it possible to precisely locate tumor borders, thus giving an opportunity to control the surgical treatment of laryngeal carcinoma. The YAG:Nd laser scalpel with wavelengths of 1.32 microm and 1.44 microm is successful in surgical procedures both in open and closed larynx due to efficient coagulation and minimization of collateral tissue damage area. Combination of the two wavelengths in the single laser unit and intraoperative OCT monitoring result is a new modality for minimally invasive larynx surgery. CONCLUSIONS OCT is promising to become a new diagnosing method of laryngeal carcinoma and a tool for laser treatment monitoring.
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Affiliation(s)
- A V Shakhov
- Nizhny Novgorod Medical Academy, Uljanov St. 46, Nizhny Novgorod, 603600, Russia
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Boiarinov GA, Mukhina IV, Penknovich AA, Snopova LB, Iakovleva EI, Balandina MV, Zimin IV, Prodanets NN. [The role of cytochrome c in preventing postresuscitation functional disorders of the central nervous system]. Eksp Klin Farmakol 1998; 61:54-7. [PMID: 9929820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
The effect of intracarotid injection of cytochrome c on the course of the early postresuscitation period was studied in experimental animals (albino rats) after 5-min clinical death from acute blood loss. It was shown that the drug normalizes the disturbed metabolic processes in the brain, reduces the structural changes consequent upon total ischemia, stabilizes the activity of the cardiovascular system and, as a result of this, contributes to restoration of functional activity of the central nervous system in the early postresuscitation period.
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Affiliation(s)
- G A Boiarinov
- Central Research Laboratory, Nizhni Novgorod Medical Academy, Russia
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Boiarinov GA, Mukhina IV, Penknovich AA, Snopova LB, Zimin IV, Balandina MV, Radaev AM, Skvortsova IE, Prodanets NN. [Mechanisms of actovegin effect on the central nervous system during postischemic period]. Biull Eksp Biol Med 1998; 126:395-8. [PMID: 9825133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Boiarinov GA, Smirnov VP, Snopova LB. [Effect of various levels of hypothermic ischemia on ATPase activity of the functional element of the myocardium]. Biull Eksp Biol Med 1993; 115:527-30. [PMID: 8043845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Activity of ATPase in functional element of myocardium (its qualitative and quantitative aspects) has been researched in normal tissue and in one with various levels of hypothermic ischemia (28-30 degrees C and 10-12 degrees C) by methods of electron microscopic histochemistry on dogs. It has been found that hypothermia of myocardium (10-12 degrees C) optimally prevents ischemic disorders of energetic processes. Reproduction activity of ATPase during reperfusion of myocardium after that hypothermia maintains contractile function of heart in proper high level.
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Kulik AM, Aleĭnikov SO, Nikulin VG, Iakovleva EI, Snopova LB. [The adaptive-compensatory reactions of the pulmonary microcirculatory bed in experimental pneumonia]. Patol Fiziol Eksp Ter 1990:27-30. [PMID: 2352776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Pulmonary microcirculation was studied in anesthetized interbred male cats with acute pneumonia in acute experiments by the method of intravital microscopy. Due to the reticular structure of the lung microcirculatory channel and the change of the direction of the blood flow in microvessels stretching to the focus of inflammation, collateral circulation developed rapidly and facilitated redistribution of the blood flow in the pulmonary lobe involved in the inflammation.
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Boiarinov GA, Smirnov VP, Snopova LB, Tarasova AI, Filippova TA. [Erythrocyte and microcirculatory functions during artificial circulation]. Biull Eksp Biol Med 1987; 103:281-3. [PMID: 3828501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Erythrocyte morphology, their aggregation ability and microcirculatory pattern in the mesentery of the small intestine have been studied stepwise on 12 dogs under artificial blood circulation. It has been shown that erythrocyte lesions followed by pathological aggregation play an important role in the pathogenesis of microcirculatory failure. Prolonged artificial circulation provokes structural reorganization in erythrocytes, thus affecting both blood rheology and gas exchange.
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Kasum'ian SA, Sadovnikova VV, Smirnov VP, Snopova LB. [Optimal timing of radical surgery for tumors of the pancreaticoduodenal zone associated with jaundice]. Vestn Khir Im I I Grek 1985; 134:49-51. [PMID: 3992805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In cancer of the pancreatoduodenal zone complicated by obturative jaundice it is expedient to perform pancreatogastroduodenal resection in two steps: the first step is laparoscopic hepatocholecystostomy, the second step should be fulfilled 10-12 days after normalization of bilirubinemia. The data obtained were taken into consideration in pancreatogastroduodenal resection performed in 20 patients.
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Boiarinov GA, Shvets NA, Kulagina EN, Snopova LB, Trifonova LV. [Extension of the period of reversible ultrastructural changes in the myocardium during blood loss by using sodium oxybutyrate]. Anesteziol Reanimatol 1984:39-44. [PMID: 6742500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Boiarinov GA, Shvets NA, Snopova LB, Khvorov NV. [Effect of sodium oxybutyrate on macroergic phosphates, function and ultrastructure of the myocardium in blood loss]. Biull Eksp Biol Med 1984; 97:309-12. [PMID: 6704523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Experiments on dogs with long-term hypotony caused by blood loss have demonstrated irreversible lesions in the majority of cardiomyocytes and hypodynamic condition of the heart with a high content of macroergic phosphates in the myocardium. Intravenous injection of sodium hydroxybutyrate in a dose of 180-200 mg/kg after 60 min of hypotony seems to improve energy transport and utilization in the ischemic myocardium. It increases the working capacity and power of the heart muscle, pump function of the heart and makes longer the period of ultrastructural changes in cardiomyocytes.
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