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Kadir NHA, Murugan N, Khan AA, Sandrasegaran A, Khan AU, Alam M. Evaluation of the cytotoxicity, antioxidant activity, and molecular docking of biogenic zinc oxide nanoparticles derived from pumpkin seeds. Microsc Res Tech 2024; 87:602-615. [PMID: 38018343 DOI: 10.1002/jemt.24437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/07/2023] [Accepted: 09/27/2023] [Indexed: 11/30/2023]
Abstract
This study aimed to investigate the characterization of zinc oxide nanoparticles (ZnONPs) produced from Cucurbita pepo L. (pumpkin seeds) and their selective cytotoxic effectiveness on human colon cancer cells (HCT 116) and African Green Monkey Kidney, Vero cells. The study also investigated the antioxidant activity of ZnONPs. The study also examined ZnONPs' antioxidant properties. This was motivated by the limited research on the comparative cytotoxic effects of ZnO NPs on normal and HCT116 cells. The ZnO NPs were characterized using Fourier-transform infrared spectroscopy (FTIR), Thermogravimetric Analysis (TGA), Transmission Electron Microscope/Selected Area Electron Diffraction (TEM/SAED), and Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX) for determination of chemical fingerprinting, heat stability, size, and morphology of the elements, respectively. Based on the results, ZnO NPs from pumpkins were found to be less than 5 μm and agglomerates in nature. Furthermore, the ZnO NPs fingerprinting and SEM-EDX element analysis were similar to previous literature, suggesting the sample was proven as ZnO NPs. The ZnO NPs also stable at a temperature of 380°C indicating that the green material is quite robust at 60-400°C. The cell viability of Vero cells and HCT 116 cell line were measured at two different time points (24 and 48 h) to assess the cytotoxicity effects of ZnO NP on these cells using AlamarBlue assay. Cytotoxic results have shown that ZnO NPs did not inhibit Vero cells but were slightly toxic to cancer cells, with a dose-response curve IC50 = ~409.7 μg/mL. This green synthesis of ZnO NPs was found to be non-toxic to normal cells but has a slight cytotoxicity effect on HCT 116 cells. A theoretical study used molecular docking to investigate nanoparticle interaction with cyclin-dependent kinase 2 (CDK2), exploring its mechanism in inhibiting CDK2's role in cancer. Further study should be carried out to determine suitable concentrations for cytotoxicity studies. Additionally, DPPH has a significant antioxidant capacity, with an IC50 of 142.857 μg/mL. RESEARCH HIGHLIGHTS: Pumpkin seed extracts facilitated a rapid, high-yielding, and environmentally friendly synthesis of ZnO nanoparticles. Spectrophotometric analysis was used to investigate the optical properties, scalability, size, shape, dispersity, and stability of ZnO NPs. The cytotoxicity of ZnO NPs on Vero and HCT 116 cells was assessed, showing no inhibition of Vero cells and cytotoxicity of cancer cells. The DPPH assay was also used to investigate the antioxidant potential of biogenic nanoparticles. A molecular docking study was performed to investigate the interaction of ZnO NPs with CDK2 and to explore the mechanism by which they inhibit CDK2's role in cancer.
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Affiliation(s)
- Nurul Huda Abd Kadir
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Navindran Murugan
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | | | - Azhar U Khan
- Department of Chemistry, School of Life and Basic Sciences, SIILAS Campus, Jaipur National University, Jaipur, India
| | - Mahboob Alam
- Department of Safety Engineering, Dongguk University Wise, Gyeongju-si, Gyeongbuk, South Korea
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Lin H, Li D, Zhu J, Liu S, Li J, Yu T, Tuchin VV, Semyachkina-Glushkovskaya O, Zhu D. Transcranial photobiomodulation for brain diseases: review of animal and human studies including mechanisms and emerging trends. NEUROPHOTONICS 2024; 11:010601. [PMID: 38317779 PMCID: PMC10840571 DOI: 10.1117/1.nph.11.1.010601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 12/07/2023] [Accepted: 01/05/2024] [Indexed: 02/07/2024]
Abstract
The brain diseases account for 30% of all known diseases. Pharmacological treatment is hampered by the blood-brain barrier, limiting drug delivery to the central nervous system (CNS). Transcranial photobiomodulation (tPBM) is a promising technology for treating brain diseases, due to its effectiveness, non-invasiveness, and affordability. tPBM has been widely used in pre-clinical experiments and clinical trials for treating brain diseases, such as stroke and Alzheimer's disease. This review provides a comprehensive overview of tPBM. We summarize emerging trends and new discoveries in tPBM based on over one hundred references published in the past 20 years. We discuss the advantages and disadvantages of tPBM and highlight successful experimental and clinical protocols for treating various brain diseases. A better understanding of tPBM mechanisms, the development of guidelines for clinical practice, and the study of dose-dependent and personal effects hold great promise for progress in treating brain diseases.
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Affiliation(s)
- Hao Lin
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Dongyu Li
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
- Huazhong University of Science and Technology, School of Optical Electronic Information, Wuhan, China
| | - Jingtan Zhu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Shaojun Liu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Jingting Li
- Huazhong University of Science and Technology, School of Engineering Sciences, Wuhan, China
| | - Tingting Yu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Valery V. Tuchin
- Saratov State University, Science Medical Center, Saratov, Russia
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow, Russia
- Tomsk State University, Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk, Russia
| | - Oxana Semyachkina-Glushkovskaya
- Saratov State University, Science Medical Center, Saratov, Russia
- Humboldt University, Department of Physics, Berlin, Germany
| | - Dan Zhu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
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Semyachkina-Glushkovskaya O, Sokolovski S, Fedosov I, Shirokov A, Navolokin N, Bucharskaya A, Blokhina I, Terskov A, Dubrovski A, Telnova V, Tzven A, Tzoy M, Evsukova A, Zhlatogosrkaya D, Adushkina V, Dmitrenko A, Manzhaeva M, Krupnova V, Noghero A, Bragin D, Bragina O, Borisova E, Kurths J, Rafailov E. Transcranial Photosensitizer-Free Laser Treatment of Glioblastoma in Rat Brain. Int J Mol Sci 2023; 24:13696. [PMID: 37762000 PMCID: PMC10530910 DOI: 10.3390/ijms241813696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/29/2023] [Accepted: 09/02/2023] [Indexed: 09/29/2023] Open
Abstract
Over sixty years, laser technologies have undergone a technological revolution and become one of the main tools in biomedicine, particularly in neuroscience, neurodegenerative diseases and brain tumors. Glioblastoma is the most lethal form of brain cancer, with very limited treatment options and a poor prognosis. In this study on rats, we demonstrate that glioblastoma (GBM) growth can be suppressed by photosensitizer-free laser treatment (PS-free-LT) using a quantum-dot-based 1267 nm laser diode. This wavelength, highly absorbed by oxygen, is capable of turning triplet oxygen to singlet form. Applying 1267 nm laser irradiation for a 4 week course with a total dose of 12.7 kJ/cm2 firmly suppresses GBM growth and increases survival rate from 34% to 64%, presumably via LT-activated apoptosis, inhibition of the proliferation of tumor cells, a reduction in intracranial pressure and stimulation of the lymphatic drainage and clearing functions. PS-free-LT is a promising breakthrough technology in non- or minimally invasive therapy for superficial GBMs in infants as well as in adult patients with high photosensitivity or an allergic reaction to PSs.
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Affiliation(s)
- Oxana Semyachkina-Glushkovskaya
- Physics Department, Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany;
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Sergey Sokolovski
- Optoelectronics and Biomedical Photonics Group, AIPT, Aston University, Birmingham B4 7ET, UK;
| | - Ivan Fedosov
- Physics Department, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (I.F.); (A.D.); (M.T.)
| | - Alexander Shirokov
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prospekt Entuziastov 13, 410049 Saratov, Russia
| | - Nikita Navolokin
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
- Department of Pathological Anatomy, Saratov Medical State University, Bolshaya Kazachaya Str. 112, 410012 Saratov, Russia;
| | - Alla Bucharskaya
- Department of Pathological Anatomy, Saratov Medical State University, Bolshaya Kazachaya Str. 112, 410012 Saratov, Russia;
| | - Inna Blokhina
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Andrey Terskov
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Alexander Dubrovski
- Physics Department, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (I.F.); (A.D.); (M.T.)
| | - Valeria Telnova
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Anna Tzven
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Maria Tzoy
- Physics Department, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (I.F.); (A.D.); (M.T.)
| | - Arina Evsukova
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Daria Zhlatogosrkaya
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Viktoria Adushkina
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Alexander Dmitrenko
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Maria Manzhaeva
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Valeria Krupnova
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
| | - Alessio Noghero
- Lovelace Biomedical Research Institute, Albuquerque, NM 87108, USA; (A.N.); (D.B.); (O.B.)
| | - Denis Bragin
- Lovelace Biomedical Research Institute, Albuquerque, NM 87108, USA; (A.N.); (D.B.); (O.B.)
- Department of Neurology, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA
| | - Olga Bragina
- Lovelace Biomedical Research Institute, Albuquerque, NM 87108, USA; (A.N.); (D.B.); (O.B.)
- Department of Neurology, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA
| | - Ekaterina Borisova
- Institute of Electronics, Bulgarian Academy of Sciences, Tsarigradsko Chaussee Blvd. 72, 1784 Sofia, Bulgaria;
| | - Jürgen Kurths
- Physics Department, Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany;
- Department of Biology, Saratov State University, Astrakhanskaya Str. 83, 410012 Saratov, Russia; (A.S.); (N.N.); (I.B.); (A.T.); (V.T.); (A.T.); (A.E.); (D.Z.); (V.A.); (A.D.); (M.M.); (V.K.)
- Potsdam Institute for Climate Impact Research, Telegrafenberg A31, 14473 Potsdam, Germany
- Centre for Analysis of Complex Systems, Sechenov First Moscow State Medical University Moscow, 119991 Moscow, Russia
| | - Edik Rafailov
- Optoelectronics and Biomedical Photonics Group, AIPT, Aston University, Birmingham B4 7ET, UK;
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Brain Waste Removal System and Sleep: Photobiomodulation as an Innovative Strategy for Night Therapy of Brain Diseases. Int J Mol Sci 2023; 24:ijms24043221. [PMID: 36834631 PMCID: PMC9965491 DOI: 10.3390/ijms24043221] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/28/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
Emerging evidence suggests that an important function of the sleeping brain is the removal of wastes and toxins from the central nervous system (CNS) due to the activation of the brain waste removal system (BWRS). The meningeal lymphatic vessels (MLVs) are an important part of the BWRS. A decrease in MLV function is associated with Alzheimer's and Parkinson's diseases, intracranial hemorrhages, brain tumors and trauma. Since the BWRS is activated during sleep, a new idea is now being actively discussed in the scientific community: night stimulation of the BWRS might be an innovative and promising strategy for neurorehabilitation medicine. This review highlights new trends in photobiomodulation of the BWRS/MLVs during deep sleep as a breakthrough technology for the effective removal of wastes and unnecessary compounds from the brain in order to increase the neuroprotection of the CNS as well as to prevent or delay various brain diseases.
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Semyachkina-Glushkovskaya O, Bragin D, Fedosov I, Blokhina I, Khorovodov A, Terskov A, Shirokov A, Dubrovsky A, Vinnik V, Evsukova A, Elovenko D, Adushkina V, Tzoy M, Dmitrenko A, Krupnova V, Manzhaeva M, Agranovich I, Saranceva E, Iskra T, Lykova E, Sokolovski S, Rafailov E, Kurths J. Mechanisms of Photostimulation of Brain's Waste Disposal System: The Role of Singlet Oxygen. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1438:45-50. [PMID: 37845438 DOI: 10.1007/978-3-031-42003-0_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
There is strong evidence that augmentation of the brain's waste disposal system via stimulation of the meningeal lymphatics might be a promising therapeutic target for preventing neurological diseases. In our previous studies, we demonstrated activation of the brain's waste disposal system using transcranial photostimulation (PS) with a laser 1267 nm, which stimulates the direct generation of singlet oxygen in the brain tissues. Here we investigate the mechanisms underlying this phenomenon. Our results clearly demonstrate that PS-mediated stimulation of the brain's waste disposal system is accompanied by activation of lymphatic contractility associated with subsequent intracellular production of the reactive oxygen species and the nitric oxide underlying lymphatic relaxation. Thus, PS stimulates the brain's waste disposal system by influencing the mechanisms of regulation of lymphatic pumping.
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Affiliation(s)
| | - Denis Bragin
- Lovelace Biomedical Research Institute, Albuquerque, NM, USA.
- Department of Neurology, University of New Mexico School of Medicine, Albuquerque, NM, USA.
| | - Ivan Fedosov
- Department of Biology, Saratov State University, Saratov, Russia
| | - Inna Blokhina
- Department of Biology, Saratov State University, Saratov, Russia
| | | | - Andrey Terskov
- Department of Biology, Saratov State University, Saratov, Russia
| | - Alexander Shirokov
- Department of Biology, Saratov State University, Saratov, Russia
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov, Russia
| | | | - Valeria Vinnik
- Department of Biology, Saratov State University, Saratov, Russia
| | - Arina Evsukova
- Department of Biology, Saratov State University, Saratov, Russia
| | - Daria Elovenko
- Department of Biology, Saratov State University, Saratov, Russia
| | | | - Maria Tzoy
- Department of Biology, Saratov State University, Saratov, Russia
| | | | - Valeria Krupnova
- Department of Biology, Saratov State University, Saratov, Russia
| | - Maria Manzhaeva
- Department of Biology, Saratov State University, Saratov, Russia
| | - Ilana Agranovich
- Department of Biology, Saratov State University, Saratov, Russia
| | - Elena Saranceva
- Department of Biology, Saratov State University, Saratov, Russia
| | - Tatyana Iskra
- Department of Biology, Saratov State University, Saratov, Russia
| | - Ekaterina Lykova
- Department of Biology, Saratov State University, Saratov, Russia
| | - Sergey Sokolovski
- Optoelectronics and Biomedical Photonics Group, AIPT, Aston University, Birmingham, UK
| | - Edik Rafailov
- Optoelectronics and Biomedical Photonics Group, AIPT, Aston University, Birmingham, UK
| | - Jürgen Kurths
- Physics Department, Humboldt University, Berlin, Germany
- Department of Biology, Saratov State University, Saratov, Russia
- Potsdam Institute for Climate Impact Research, Potsdam, Germany
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Photodynamic Opening of the Blood-Brain Barrier and the Meningeal Lymphatic System: The New Niche in Immunotherapy for Brain Tumors. Pharmaceutics 2022; 14:pharmaceutics14122612. [PMID: 36559105 PMCID: PMC9784636 DOI: 10.3390/pharmaceutics14122612] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/13/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Photodynamic therapy (PDT) is a promising add-on therapy to the current standard of care for patients with glioblastoma (GBM). The traditional explanation of the anti-cancer PDT effects involves the PDT-induced generation of a singlet oxygen in the GBM cells, which causes tumor cell death and microvasculature collapse. Recently, new vascular mechanisms of PDT associated with opening of the blood-brain barrier (OBBB) and the activation of functions of the meningeal lymphatic vessels have been discovered. In this review, we highlight the emerging trends and future promises of immunotherapy for brain tumors and discuss PDT-OBBB as a new niche and an important informative platform for the development of innovative pharmacological strategies for the modulation of brain tumor immunity and the improvement of immunotherapy for GBM.
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Yokomizo S, Roessing M, Morita A, Kopp T, Ogawa E, Katagiri W, Feil S, Huang PL, Atochin DN, Kashiwagi S. Near-infrared II photobiomodulation augments nitric oxide bioavailability via phosphorylation of endothelial nitric oxide synthase. FASEB J 2022; 36:e22490. [PMID: 35929438 PMCID: PMC9382775 DOI: 10.1096/fj.202101890r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 07/05/2022] [Accepted: 07/25/2022] [Indexed: 11/11/2022]
Abstract
There is solid evidence of the beneficial effect of photobiomodulation (PBM) with low-power near-infrared (NIR) light in the NIR-I window in increasing bioavailable nitric oxide (NO). However, it is not established whether this effect can be extended to NIR-II light, limiting broader applications of this therapeutic modality. Since we have demonstrated PBM with NIR laser in the NIR-II window, we determined the causal relationship between NIR-II irradiation and its specific biological effects on NO bioavailability. We analyzed the impact of NIR-II irradiation on NO release in cultured human endothelial cells using a NO-sensitive fluorescence probe and single-cell live imaging. Two distinct wavelengths of NIR-II laser (1064 and 1270 nm) and NIR-I (808 nm) at an irradiance of 10 mW/cm2 induced NO release from endothelial cells. These lasers also enhanced Akt phosphorylation at Ser 473, endothelial nitric oxide synthase (eNOS) phosphorylation at Ser 1177, and endothelial cell migration. Moreover, the NO release and phosphorylation of eNOS were abolished by inhibiting mitochondrial respiration, suggesting that Akt activation caused by NIR-II laser exposure involves mitochondrial retrograde signaling. Other inhibitors that inhibit known Akt activation pathways, including a specific inhibitor of PI3K, Src family PKC, did not affect this response. These two wavelengths of NIR-II laser induced no appreciable NO generation in cultured neuronal cells expressing neuronal NOS (nNOS). In short, NIR-II laser enhances bioavailable NO in endothelial cells. Since a hallmark of endothelial dysfunction is suppressed eNOS with concomitant NO deficiency, NIR-II laser technology could be broadly used to restore endothelial NO and treat or prevent cardiovascular diseases.
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Affiliation(s)
- Shinya Yokomizo
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA, 02129, USA
- Department of Radiological Science, Tokyo Metropolitan University, 7-2-10 Higashi-Ogu, Arakawa, Tokyo 116-8551, Japan
| | - Malte Roessing
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Atsuyo Morita
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Timo Kopp
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Emiyu Ogawa
- School of Allied Health Science, Kitasato University, 1-15-1 Kitasato Minami-ku Sagamihara, Kanagawa, Japan
| | - Wataru Katagiri
- Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Susanne Feil
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
| | - Paul L. Huang
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Dmitriy N. Atochin
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA, 02129, USA
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Sokolovski SG, Rafailov EU, Abramov AY, Angelova PR. Singlet oxygen stimulates mitochondrial bioenergetics in brain cells. Free Radic Biol Med 2021; 163:306-313. [PMID: 33359431 DOI: 10.1016/j.freeradbiomed.2020.12.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/08/2020] [Indexed: 12/22/2022]
Abstract
Oxygen, in form of reactive oxygen species (ROS), has been shown to participate in oxidative stress, one of the major triggers for pathology, but also is a main contributor to physiological processes. Recently, it was found that 1267 nm irradiation can produce singlet oxygen without photosensitizers. We used this phenomenon to study the effect of laser-generated singlet oxygen on one of the major oxygen-dependent processes, mitochondrial energy metabolism. We have found that laser-induced generation of 1O2 in neurons and astrocytes led to the increase of mitochondrial membrane potential, activation of NADH- and FADH-dependent respiration, and importantly, increased the rate of maximal respiration in isolated mitochondria. The activation of mitochondrial respiration stimulated production of ATP in these cells. Thus, we found that the singlet oxygen generated by 1267 nm laser pulse works as an activator of mitochondrial respiration and ATP production in the brain.
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Affiliation(s)
| | - Edik U Rafailov
- Aston Institute of Photonics Technologies, Aston University, UK
| | - Andrey Y Abramov
- Department of Clinical and Movement Neurosciences, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
| | - Plamena R Angelova
- Department of Clinical and Movement Neurosciences, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK.
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