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Chen L, Hu Y, Zhang M, Liu L, Ma J, Xu Z, Zhang J, Gu H, Chen K. METTL14 affects UVB-induced human dermal fibroblasts photoaging via miR-100-3p biogenesis in an m 6A-dependent manner. Aging Cell 2024; 23:e14123. [PMID: 38380598 PMCID: PMC11113260 DOI: 10.1111/acel.14123] [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: 08/13/2023] [Revised: 01/18/2024] [Accepted: 02/04/2024] [Indexed: 02/22/2024] Open
Abstract
Exposure to ultraviolet radiation can lead to skin photoaging, which increases the risk of skin tumors. This study aims to investigate how microRNA m6A modification contributes to skin photoaging. This study found that skin fibroblasts exposed to a single UVB dose of 30 mJ/cm2 exhibited characteristics of photoaging. The m6A level of total RNA decreased in photoaged cells with a down-regulated level of METTL14, and overexpression of METTL14 displayed a photoprotective function. Moreover, miR-100-3p was a downstream target of METTL14. And METTL14 could affect pri-miR-100 processing to mature miR-100-3p in an m6A-dependent manner via DGCR8. Furthermore, miR-100-3p targeted at 3' end untranslated region of ERRFI1 mRNA with an inhibitory effect on translation. Additionally, photoprotective effects of overexpression of METTL14 were reversed by miR-100-3p inhibitor or overexpression of ERRFI1. In UVB-induced photoaging of human skin fibroblasts, METTL14-dependent m6A can regulate miR-100-3p maturation via DGCR8 and affect skin fibroblasts photoaging through miR-100-3p/ERRFI1 axis.
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Affiliation(s)
- Lihao Chen
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
| | - Yu Hu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
| | - Min Zhang
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
| | - Lihao Liu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
| | - Jing Ma
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
| | - Zhuohong Xu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
| | - Jiaan Zhang
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
| | - Heng Gu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
| | - Kun Chen
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingChina
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2
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Wang W, Zhou H, Xu Z, Li Z, Zhang L, Wan P. Flexible Conformally Bioadhesive MXene Hydrogel Electronics for Machine Learning-Facilitated Human-Interactive Sensing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401035. [PMID: 38552161 DOI: 10.1002/adma.202401035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/19/2024] [Indexed: 05/01/2024]
Abstract
Wearable epidermic electronics assembled from conductive hydrogels are attracting various research attention for their seamless integration with human body for conformally real-time health monitoring, clinical diagnostics and medical treatment, and human-interactive sensing. Nevertheless, it remains a tremendous challenge to simultaneously achieve conformally bioadhesive epidermic electronics with remarkable self-adhesiveness, reliable ultraviolet (UV) protection ability, and admirable sensing performance for high-fidelity epidermal electrophysiological signals monitoring, along with timely photothermal therapeutic performances after medical diagnostic sensing, as well as efficient antibacterial activity and reliable hemostatic effect for potential medical therapy. Herein, a conformally bioadhesive hydrogel-based epidermic sensor, featuring superior self-adhesiveness and excellent UV-protection performance, is developed by dexterously assembling conducting MXene nanosheets network with biological hydrogel polymer network for conformally stably attaching onto human skin for high-quality recording of various epidermal electrophysiological signals with high signal-to-noise ratios (SNR) and low interfacial impedance for intelligent medical diagnosis and smart human-machine interface. Moreover, a smart sign language gesture recognition platform based on collected electromyogram (EMG) signals is designed for hassle-free communication with hearing-impaired people with the help of advanced machine learning algorithms. Meanwhile, the bioadhesive MXene hydrogel possesses reliable antibacterial capability, excellent biocompatibility, and effective hemostasis properties for promising bacterial-infected wound bleeding.
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Affiliation(s)
- Wei Wang
- College of Materials Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Hailiang Zhou
- College of Materials Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhishan Xu
- College of Materials Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zehui Li
- College of Materials Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Liqun Zhang
- College of Materials Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Pengbo Wan
- College of Materials Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
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3
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Teng KX, Zhang D, Liu BK, Liu ZF, Niu LY, Yang QZ. Photo-Induced Disproportionation-Mediated Photodynamic Therapy: Simultaneous Oxidation of Tetrahydrobiopterin and Generation of Superoxide Radicals. Angew Chem Int Ed Engl 2024; 63:e202318783. [PMID: 38258371 DOI: 10.1002/anie.202318783] [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: 12/06/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 01/24/2024]
Abstract
We herein present an approach of photo-induced disproportionation for preparation of Type-I photodynamic agents. As a proof of concept, BODIPY-based photosensitizers were rationally designed and prepared. The photo-induced intermolecular electron transfer between homotypic chromophores leads to the disproportionation reaction, resulting in the formation of charged intermediates, cationic and anionic radicals. The cationic radicals efficiently oxidize the cellularimportant coenzyme, tetrahydrobiopterin (BH4 ), and the anionic radicals transfer electrons to oxygen to produce superoxide radicals (O2 - ⋅). One of our Type-I photodynamic agents not only self-assembles in water but also effectively targets the endoplasmic reticulum. It displayed excellent photocytotoxicity even in highly hypoxic environments (2 % O2 ), with a half-maximal inhibitory concentration (IC50 ) of 0.96 μM, and demonstrated outstanding antitumor efficacy in murine models bearing HeLa tumors.
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Affiliation(s)
- Kun-Xu Teng
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Dongsheng Zhang
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Bin-Kai Liu
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Zheng-Fei Liu
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Li-Ya Niu
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Qing-Zheng Yang
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
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4
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Krikunova PV, Tolordava ER, Arkharova NA, Karimov DN, Bukreeva TV, Shirinian VZ, Khaydukov EV, Pallaeva TN. Riboflavin Crystals with Extremely High Water Solubility. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5504-5512. [PMID: 38278768 DOI: 10.1021/acsami.3c15853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
New insights into the unique biochemical properties of riboflavin (Rf), also known as vitamin B2, are leading to the development of its use not only as a vitamin supplement but also as a potential anti-inflammatory, immunomodulatory, antioxidant, anticancer, and antiviral agent, where it may play a role as an inhibitor of viral proteinases. At the same time, the comparison of the pharmacoactivity of Rf with its known metabolites, namely, flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), is very complicated due to its poor water solubility: 0.1-0.3 g/L versus 67 g/L for FMN and 50 g/L for FAD, which is the limiting factor for its administration in clinical practice. In this study, we report the recrystallization procedure of the type A Rf crystals into the slightly hydrophobic type B/C and a new hydrophilic crystal form that has been termed the P type. Our method of Rf crystal modification based on recrystallization from dilute alkaline solution provides an unprecedented extremely high water solubility of Rf, reaching 23.5 g/L. A comprehensive study of the physicochemical properties of type P riboflavin showed increased photodynamic therapeutic activity compared to the known types A and B/C against clinical isolates of Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Salmonella typhimurium. Importantly, our work not only demonstrates a simple and inexpensive method for the synthesis of riboflavin with high solubility, which should lead to increased bioactivity, but also opens up opportunities for improving both known and new therapeutic applications of vitamin B2.
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Affiliation(s)
| | - Eteri R Tolordava
- Gamaleya Research Institute of Epidemiology and Microbiology, Moscow 123098, Russia
| | | | - Denis N Karimov
- FSRC "Crystallography and Photonics" RAS, Moscow 119333, Russia
| | | | - Valerii Z Shirinian
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
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Li N, Wang Y, Li Y, Zhang C, Fang G. Recent Advances in Photothermal Therapy at Near-Infrared-II Based on 2D MXenes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305645. [PMID: 37775938 DOI: 10.1002/smll.202305645] [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] [Received: 07/05/2023] [Revised: 09/12/2023] [Indexed: 10/01/2023]
Abstract
The use of photothermal therapy (PTT) with the near-infrared II region (NIR-II: 1000-1700 nm) is expected to be a powerful cancer treatment strategy. It retains the noninvasive nature and excellent temporal and spatial controllability of the traditional PTT, and offers significant advantages in terms of tissue penetration depth, background noise, and the maximum permissible exposure standards for skin. MXenes, transition-metal carbides, nitrides, and carbonitrides are emerging inorganic nanomaterials with natural biocompatibility, wide spectral absorption, and a high photothermal conversion efficiency. The PTT of MXenes in the NIR-II region not only provides a valuable reference for exploring photothermal agents that respond to NIR-II in 2D inorganic nanomaterials, but also be considered as a promising biomedical therapy. First, the synthesis methods of 2D MXenes are briefly summarized, and the laser light source, mechanism of photothermal conversion, and evaluation criteria of photothermal performance are introduced. Second, the latest progress of PTT based on 2D MXenes in NIR-II are reviewed, including titanium carbide (Ti3 C2 ), niobium carbide (Nb2 C), and molybdenum carbide (Mo2 C). Finally, the main problems in the PTT application of 2D MXenes to NIR-II and future research directions are discussed.
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Affiliation(s)
- Nan Li
- GBA Branch of Aerospace Information Research Institute, Chinese Academy of Sciences, and Guangdong Provincial Key Laboratory of Terahertz Quantum Electromagnetics, Guangzhou, Guangdong, 510700, China
| | - Yisen Wang
- GBA Branch of Aerospace Information Research Institute, Chinese Academy of Sciences, and Guangdong Provincial Key Laboratory of Terahertz Quantum Electromagnetics, Guangzhou, Guangdong, 510700, China
| | - Yang Li
- Cell Department, School of Medicine, Yale University, 333 Cedar Street, New Haven, CT, 06510, USA
| | - Chenchu Zhang
- Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei, 230009, China
| | - Guangyou Fang
- GBA Branch of Aerospace Information Research Institute, Chinese Academy of Sciences, and Guangdong Provincial Key Laboratory of Terahertz Quantum Electromagnetics, Guangzhou, Guangdong, 510700, China
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6
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Davis AE, Kennelley GE, Amaye-Obu T, Jowdy PF, Ghadersohi S, Nasir-Moin M, Paragh G, Berman HA, Huss WJ. The phenomenon of phototoxicity and long-term risks of commonly prescribed and structurally diverse drugs. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2024; 19:100221. [PMID: 38389933 PMCID: PMC10883358 DOI: 10.1016/j.jpap.2023.100221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024] Open
Abstract
Photosensitivity to structurally diverse drugs is a common but under-reported adverse cutaneous reaction and can be classified as phototoxic or photoallergic. Phototoxic reactions occur when the skin is exposed to sunlight after administering topical or systemic medications that exhibit photosensitizing activity. These reactions depend on the dose of medication, degree of exposure to ultraviolet light, type of ultraviolet light, and sufficient skin distribution volume. Accurate prediction of the incidence and phototoxic response severity is challenging due to a paucity of literature, suggesting that phototoxicity may be more frequent than reported. This paper reports an extensive literature review on phototoxic drugs; the review employed pre-determined search criteria that included meta-analyses, systematic reviews, literature reviews, and case reports freely available in full text. Additional reports were identified from reference sections that contributed to the understanding of phototoxicity. The following drugs and/or drug classes are discussed: amiodarone, voriconazole, chlorpromazine, doxycycline, fluoroquinolones, hydrochlorothiazide, nonsteroidal anti-inflammatory drugs, and vemurafenib. In reviewing phototoxic skin reactions, this review highlights drug molecular structures, their reactive pathways, and, as there is a growing association between photosensitizing drugs and the increasing incidence of skin cancer, the consequential long-term implications of photocarcinogenesis.
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Affiliation(s)
- Anna E Davis
- Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Gabrielle E Kennelley
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
- College of Medicine, Central Michigan University, Mt. Pleasant, MI 48858, USA
| | - Tatiana Amaye-Obu
- Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Peter F Jowdy
- Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Sarah Ghadersohi
- Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Mehr Nasir-Moin
- Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Gyorgy Paragh
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Harvey A Berman
- Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
- Romanell Center for the Philosophy of Medicine and Bioethics, Park Hall University at Buffalo, Buffalo, NY 14260, USA
| | - Wendy J Huss
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
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7
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Armijos-Capa G, Tuninetti JS, Thomas AH, Serrano MP. Enhancement of the Photosensitizing Properties of 6-Carboxypterin through Covalent Binding to the pH-Responsive and Biocompatible Poly(allylamine Hydrochloride). ACS APPLIED MATERIALS & INTERFACES 2024; 16:3922-3934. [PMID: 38061363 DOI: 10.1021/acsami.3c13121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
A polymeric photosensitizer was synthesized through covalent attachment of the natural photosensitizer 6-carboxypterin (Cap) to a poly(allylamine hydrochloride) (PAH) polymer. The optimization of the functionalization steps and purification procedure is described. The overall yield of the functionalization reaction was 67% to generate the modified polymer (PAH-Cap), featuring a Cap substitution degree of approximately 1% and advantageous spectroscopic properties. Photosensitizing properties of PAH-Cap were observed to occur via both photooxidation mechanisms, i.e., type I and type II. This feature was demonstrated using a biologically relevant target molecule, 2'-deoxyguanosine (dG). The spectroscopic, photophysical, and photochemical behaviors in aqueous environments were studied and compared to Cap. To explore possible further relevant biological applications, experiments with PAH-Cap and dG were carried out at physiological pH. PAH-Cap can generate singlet molecular oxygen and initiate an electron transfer process at pH 7 in air-saturated solutions upon UVA irradiation. Moreover, based on its spectroscopic features, visible light can be used to initiate the photooxidation of biological compounds in water, with many interesting advantages compared to free Cap and other related pteridines. These advantages include an enhancement of the photosensitizing effect at physiological pH and the potential of PAH-Cap for its use as a building block in supramolecular assemblies. The functionalization strategy hereby described can be employed for the preparation of robust photoactive polymers with great potential for its application in photodynamic therapy (PDT) and disinfection technologies.
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Affiliation(s)
- Gerardo Armijos-Capa
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT La Plata-CONICET, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), La Plata B1904DPI, Argentina
| | - Jimena S Tuninetti
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT La Plata-CONICET, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), La Plata B1904DPI, Argentina
| | - Andrés H Thomas
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT La Plata-CONICET, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), La Plata B1904DPI, Argentina
| | - Mariana P Serrano
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT La Plata-CONICET, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), La Plata B1904DPI, Argentina
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8
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Plavskii VY, Sobchuk AN, Mikulich AV, Dudinova ON, Plavskaya LG, Tretyakova AI, Nahorny RK, Ananich TS, Svechko AD, Yakimchuk SV, Leusenka IA. Identification by methods of steady-state and kinetic spectrofluorimetry of endogenous porphyrins and flavins sensitizing the formation of reactive oxygen species in cancer cells. Photochem Photobiol 2024. [PMID: 38258972 DOI: 10.1111/php.13911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/20/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024]
Abstract
The question about acceptor molecules of optical radiation that determine the effects of photobiomodulation in relation to various types of cells still remains the focus of attention of researchers. This issue is most relevant for cancer cells, since, depending on the parameters of optical radiation, light can either stimulate their growth or inhibit them and lead to death. This study shows that endogenous porphyrins, which have sensitizing properties, may play an important role in the implementation of the effects of photobiomodulation, along with flavins. For the first time, using steady-state and kinetic spectrofluorimetry, free-base porphyrins and their zinc complexes were discovered and identified in living human cervical epithelial carcinoma (HeLa) cells, as well as in their extracts. It has been shown that reliable detection of porphyrin fluorescence in cells is hampered by the intense fluorescence of flavins due to their high concentration (micromolar range) and higher (compared to tetrapyrroles) fluorescence quantum yield. Optimization of the spectral range of excitation and the use of extractants that provide multiple quenching of the flavin component while increasing the emission efficiency of tetrapyrroles makes it possible to weaken the contribution of the flavin component to the recorded fluorescence spectra.
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Affiliation(s)
- Vitaly Yu Plavskii
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Andrei N Sobchuk
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Aliaksandr V Mikulich
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Olga N Dudinova
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Ludmila G Plavskaya
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Antonina I Tretyakova
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Raman K Nahorny
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Tatsiana S Ananich
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Alexei D Svechko
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Sergey V Yakimchuk
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
| | - Ihar A Leusenka
- State Scientific Institution "B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus", Minsk, Belarus
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9
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Bischer AP, Baran TM, Wojtovich AP. Reactive oxygen species drive foraging decisions in Caenorhabditis elegans. Redox Biol 2023; 67:102934. [PMID: 37864874 PMCID: PMC10616421 DOI: 10.1016/j.redox.2023.102934] [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: 07/28/2023] [Revised: 09/14/2023] [Accepted: 10/12/2023] [Indexed: 10/23/2023] Open
Abstract
Environmental surveillance-mediated behavior integrates multiple cues through complex signaling mechanisms. In Caenorhabditis elegans, neurons coordinate perception and response through evolutionarily conserved molecular signaling cascades to mediate attraction and avoidance behaviors. However, despite lacking eyes, C. elegans was recently reported to perceive and react to the color blue. Here, we provide an explanation for this apparent color perception. We show that internally-generated reactive oxygen species (ROS) occurring in response to light are additive to exogenous sources of ROS, such as bacterial toxins or photosensitizers. Multiple sub-threshold sources of ROS are integrated to coordinate behavioral responses to the environment with internal physiologic cues, independent of color. We further demonstrate that avoidance behavior can be blocked by antioxidants, while ROS is both sufficient and scalable to phenocopy the avoidance response. Moreover, avoidance behavior in response to ROS is plastic and reversible, suggesting it may occur through a post-translation redox modification. Blue light affects C. elegans behavior through ROS generation by endogenous flavins in a process requiring the neuronal gustatory photoreceptor like protein, LITE-1. Our results demonstrate that LITE-1 is also required for ROS-mediated avoidance of pyocyanin and light-activated photosensitizers and this role is mediated through the modification of Cys44. Overall, these findings demonstrate that ROS and LITE-1 are central mediators of C. elegans foraging behavior through integration of multiple inputs, including light.
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Affiliation(s)
- Andrew P Bischer
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Timothy M Baran
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Andrew P Wojtovich
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA.
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10
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Insińska-Rak M, Sikorski M, Wolnicka-Glubisz A. Riboflavin and Its Derivates as Potential Photosensitizers in the Photodynamic Treatment of Skin Cancers. Cells 2023; 12:2304. [PMID: 37759526 PMCID: PMC10528563 DOI: 10.3390/cells12182304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/05/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Riboflavin, a water-soluble vitamin B2, possesses unique biological and physicochemical properties. Its photosensitizing properties make it suitable for various biological applications, such as pathogen inactivation and photodynamic therapy. However, the effectiveness of riboflavin as a photosensitizer is hindered by its degradation upon exposure to light. The review aims to highlight the significance of riboflavin and its derivatives as potential photosensitizers for use in photodynamic therapy. Additionally, a concise overview of photodynamic therapy and utilization of blue light in dermatology is provided, as well as the photochemistry and photobiophysics of riboflavin and its derivatives. Particular emphasis is given to the latest findings on the use of acetylated 3-methyltetraacetyl-riboflavin derivative (3MeTARF) in photodynamic therapy.
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Affiliation(s)
- Małgorzata Insińska-Rak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (M.I.-R.); (M.S.)
| | - Marek Sikorski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (M.I.-R.); (M.S.)
| | - Agnieszka Wolnicka-Glubisz
- Department of Biophysics and Cancer Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
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