1
|
Jeleń M, Otto-Ślusarczyk D, Morak-Młodawska B, Struga M. Novel Tetracyclic Azaphenothiazines with the Quinoline Ring as New Anticancer and Antibacterial Derivatives of Chlorpromazine. Int J Mol Sci 2024; 25:4148. [PMID: 38673734 PMCID: PMC11050599 DOI: 10.3390/ijms25084148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Phenothiazine derivatives are widely studied in various fields such as biology, chemistry, and medicine research because of their pharmaceutical effects. The first compound used successfully in the treatment of psychosis was a phenthiazine derivative, chlorpromazine. Apart from its activity in neurons, chlorpromazine has also been reported to display anticancer and antibacterial properties. In this study, we present the synthesis and research on the activity of A549, MDA, MiaPaCa, PC3, and HCT116 cancer cell lines and of S. aureus, S. epidermidis, E. coli, and P. aeruginosa bacterial strains against a series of new tetracyclic chlorpromazine analogues containing a quinoline scaffold in their structure instead of the benzene ring and various substituents at the thiazine nitrogen. The structure of these novel molecules has been determined by 1H NMR, 13C NMR, and HRMS spectral techniques. The seven most active of the twenty-four new chlorpromazine analogues tested were selected to study the mechanism of cytotoxic action. Their ability to induce apoptosis or necrosis in cancer cells was assessed by flow cytometry analysis. The results obtained confirmed the proapoptotic activity of selected compounds, especially in terms of inducing late apoptosis or necrosis in cancer cell lines A549, MiaPaCa-2, and HCT-116. Furthermore, studies on the induction of cell cycle arrest suggest that the new chlorpromazine analogues exert antiproliferative effects by inducing cell cycle arrest in the S phase and, consequently, apoptosis.
Collapse
Affiliation(s)
- Małgorzata Jeleń
- Department of Organic Chemistry, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland;
| | - Dagmara Otto-Ślusarczyk
- Chair and Department of Biochemistry, Medical University of Warsaw, 02-097 Warsaw, Poland; (D.O.-Ś.); (M.S.)
| | - Beata Morak-Młodawska
- Department of Organic Chemistry, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland;
| | - Marta Struga
- Chair and Department of Biochemistry, Medical University of Warsaw, 02-097 Warsaw, Poland; (D.O.-Ś.); (M.S.)
| |
Collapse
|
2
|
González-González A, Vázquez C, Encalada R, Saavedra E, Vázquez-Jiménez LK, Ortiz-Pérez E, Bolognesi ML, Rivera G. Phenothiazine-based virtual screening, molecular docking, and molecular dynamics of new trypanothione reductase inhibitors of Trypanosoma cruzi. Mol Inform 2023; 42:e2300069. [PMID: 37490403 DOI: 10.1002/minf.202300069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/26/2023] [Accepted: 07/25/2023] [Indexed: 07/27/2023]
Abstract
Phenothiazine derivatives can unselectively inhibit the trypanothione-dependent antioxidant system enzyme trypanothione reductase (TR). A virtual screening of 2163 phenothiazine derivatives from the ZINC15 and PubChem databases docked on the active site of T. cruzi TR showed that 285 compounds have higher affinity than the natural ligand trypanothione disulfide. 244 compounds showed higher affinity toward the parasite's enzyme than to its human homolog glutathione reductase. Protein-ligand interaction profiling predicted that the main interactions for the top scored compounds were with residues important for trypanothione disulfide binding: Phe396, Pro398, Leu399, His461, Glu466, and Glu467, particularly His461, which participates in catalysis. Two compounds with the desired profiles, ZINC1033681 (Zn_C687) and ZINC10213096 (Zn_C216), decreased parasite growth by 20 % and 50 %, respectively. They behaved as mixed-type inhibitors of recombinant TR, with Ki values of 59 and 47 μM, respectively. This study provides a further understanding of the potential of phenothiazine derivatives as TR inhibitors.
Collapse
Affiliation(s)
- Alonzo González-González
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710, Reynosa, México
| | - Citlali Vázquez
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, 14080, Mexico City, Mexico
| | - Rusely Encalada
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, 14080, Mexico City, Mexico
| | - Emma Saavedra
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, 14080, Mexico City, Mexico
| | - Lenci K Vázquez-Jiménez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710, Reynosa, México
| | - Eyra Ortiz-Pérez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710, Reynosa, México
| | - María Laura Bolognesi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, I-40126, Bologna, Italy
| | - Gildardo Rivera
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710, Reynosa, México
| |
Collapse
|
3
|
Cibotaru S, Sandu AI, Nicolescu A, Marin L. Antitumor Activity of PEGylated and TEGylated Phenothiazine Derivatives: Structure–Activity Relationship. Int J Mol Sci 2023; 24:ijms24065449. [PMID: 36982524 PMCID: PMC10049495 DOI: 10.3390/ijms24065449] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/16/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
The paper aims to investigate the antitumor activity of a series of phenothiazine derivatives in order to establish a structure–antitumor activity relationship. To this end, PEGylated and TEGylated phenothiazine have been functionalized with formyl units and further with sulfonamide units via dynamic imine bonds. Their antitumor activity was monitored in vitro against seven human tumors cell lines and a mouse one compared to a human normal cell line by MTS assay. In order to find the potential influence of different building blocks on antitumor activity, the antioxidant activity, the ability to inhibit farnesyltransferase and the capacity to bind amino acids relevant for tumor cell growth were investigated as well. It was established that different building blocks conferred different functionalities, inducing specific antitumor activity against the tumor cells.
Collapse
|
4
|
Deng ZY, Hu Z, Feng HJ. Dynamic interplay between thionine and DNA under carbon ion irradiation: a real-time first-principles study. J Phys Condens Matter 2022; 51:025101. [PMID: 36327460 DOI: 10.1088/1361-648x/ac9fff] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Understanding the interactions between deoxyribonucleic acid (DNA) and photosensitizer under ion irradiation benefits the development of aptasensors, DNA biosensors and cancer diagnosis. Using real-time time-depended density functional theory, by simulating high-energy C ion passing through DNA with poly(dG)·poly(dC) sequence and that with embedded thionine (3,7-diamino-5-phenothiazinium, TH), we compared the electronic stopping power (ESP), evolution of the structure and charge, and absorption spectrum. TH inserting leads the increase in space charge density, a larger electron de-excitation and a larger ESP, but the speed corresponding to the maximum ESP is almost same. When C ion passes through TH-DNA, the structure of TH slightly changes and there still exists noncovalent interaction between TH and DNA, but the absorption coefficient depends on the electron occupied state of TH when the ion passes through. These results indicate that at low radiation doses, TH still can be a DNA detector, although its response wavelength and intensity have been slightly changed, and provide a theoretical reference to improve the possible application of phenothiazine dye in DNA biosensor under ion irradiation.
Collapse
Affiliation(s)
- Zun-Yi Deng
- School of Physics, Northwest University, Xi'an 710127, People's Republic of China
| | - Zhihua Hu
- School of Physics, Northwest University, Xi'an 710127, People's Republic of China
| | - Hong-Jian Feng
- School of Physics, Northwest University, Xi'an 710127, People's Republic of China
| |
Collapse
|
5
|
Empel A, Bak A, Kozik V, Latocha M, Cizek A, Jampilek J, Suwinska K, Sochanik A, Zieba A. Towards Property Profiling: SYNTHESIS and SAR Probing of New Tetracyclic Diazaphenothiazine Analogues. Int J Mol Sci 2021; 22:ijms222312826. [PMID: 34884631 PMCID: PMC8658022 DOI: 10.3390/ijms222312826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/22/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022] Open
Abstract
A series of new tertiary phenothiazine derivatives containing a quinoline and a pyridine fragment was synthesized by the reaction of 1-methyl-3-benzoylthio-4-butylthioquinolinium chloride with 3-aminopyridine derivatives bearing various substituents on the pyridine ring. The direction and mechanism of the cyclization reaction of intermediates with the structure of 1-methyl-4-(3-pyridyl)aminoquinolinium-3-thiolate was related to the substituents in the 2- and 4-pyridine position. The structures of the compounds were analyzed using 1H, 13C NMR (COSY, HSQC, HMBC) and X-ray analysis, respectively. Moreover, the antiproliferative activity against tumor cells (A549, T47D, SNB-19) and a normal cell line (NHDF) was tested. The antibacterial screening of all the compounds was conducted against the reference and quality control strain Staphylococcus aureus ATCC 29213, three clinical isolates of methicillin-resistant S. aureus (MRSA). In silico computation of the intermolecular similarity was performed using principal component analysis (PCA) and hierarchical clustering analysis (HCA) on the pool of structure/property-related descriptors calculated for the novel tetracyclic diazaphenothiazine derivatives. The distance-oriented property evaluation was correlated with the experimental anticancer activities and empirical lipophilicity as well. The quantitative shape-based comparison was conducted using the CoMSA method in order to indicate the potentially valid steric, electronic and lipophilic properties. Finally, the numerical sampling of similarity-related activity landscape (SALI) provided a subtle picture of the SAR trends.
Collapse
Affiliation(s)
- Anna Empel
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jagiellońska 4, 41-200 Sosnowiec, Poland;
| | - Andrzej Bak
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-007 Katowice, Poland;
- Correspondence: (A.B.); (A.Z.)
| | - Violetta Kozik
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-007 Katowice, Poland;
| | - Malgorzata Latocha
- Department of Cell Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jedności 9, 41-200 Sosnowiec, Poland;
| | - Alois Cizek
- Department of Infectious Diseases and Microbiology, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, Palackeho 1946/1, 61242 Brno, Czech Republic;
| | - Josef Jampilek
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 84215 Bratislava, Slovakia;
- Department of Chemical Biology, Faculty of Science, Palacky University Olomouc, Slechtitelu 27, 78371 Olomouc, Czech Republic
| | - Kinga Suwinska
- Faculty of Mathematics and Natural Sciences, Cardinal Stefan Wyszyński University, K. Woycickiego 1/3, 01-938 Warszawa, Poland;
| | - Aleksander Sochanik
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Wybrzeże AK 15, 44-101 Gliwice, Poland;
| | - Andrzej Zieba
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jagiellońska 4, 41-200 Sosnowiec, Poland;
- Correspondence: (A.B.); (A.Z.)
| |
Collapse
|
6
|
Ming T, Cheng Y, Xing Y, Luo J, Mao G, Liu J, Sun S, Kong F, Jin H, Cai X. Electrochemical Microfluidic Paper-Based Aptasensor Platform Based on a Biotin-Streptavidin System for Label-Free Detection of Biomarkers. ACS Appl Mater Interfaces 2021; 13:46317-46324. [PMID: 34546713 DOI: 10.1021/acsami.1c12716] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Timely and rapid detection of biomarkers is extremely important for the diagnosis and treatment of diseases. However, going to the hospital to test biomarkers is the most common way. People need to spend a lot of money and time on various tests for potential disease detection. To make the detection more convenient and affordable, we propose a paper-based aptasensor platform in this work. This device is based on a cellulose paper, on which a three-electrode system and microfluidic channels are fabricated. Meanwhile, novel nanomaterials consisting of amino redox graphene/thionine/streptavidin-modified gold nanoparticles/chitosan are synthesized and modified on the working electrode of the device. Through the biotin-streptavidin system, the aptamer whose 5'end is modified with biotin can be firmly immobilized on the electrode. The detection principle is that the current generated by the nanomaterials decreases proportionally to the concentration of targets owing to the combination of the biomarker and its aptamer. 17β-Estradiol (17β-E2), as one of the widely used diagnostic biomarkers of various clinical conditions, is adopted for verifying the performance of the platform. The experimental results demonstrated that this device enables the determination of 17β-E2 in a wide linear range of concentrations of 10 pg mL-1 to 100 ng mL-1 and the limit of detection is 10 pg mL-1 (S/N = 3). Moreover, it enables the detection of targets in clinical serum samples, demonstrating its potential to be a disposable and convenient integrated platform for detecting various biomarkers.
Collapse
Affiliation(s)
- Tao Ming
- Obstetrics and Gynecology Department, Peking University First Hospital, Beijing 100034, China
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yan Cheng
- Obstetrics and Gynecology Department, Peking University First Hospital, Beijing 100034, China
| | - Yu Xing
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jinping Luo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Gang Mao
- Fourth People's Hospital of Jinan, Jinan 250031, China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Shuai Sun
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Fanli Kong
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hongyan Jin
- Obstetrics and Gynecology Department, Peking University First Hospital, Beijing 100034, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| |
Collapse
|
7
|
Kumar A, Kumar P. Prediction of power conversion efficiency of phenothiazine-based dye-sensitized solar cells using Monte Carlo method with index of ideality of correlation. SAR QSAR Environ Res 2021; 32:817-834. [PMID: 34530657 DOI: 10.1080/1062936x.2021.1973095] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
Simplified molecular-input line-entry system (SMILES) notation and inbuilt Monte Carlo algorithm of CORAL software were employed to construct generative and prediction QSPR models for the analysis of the power conversion efficiency (PCE) of 215 phenothiazine derivatives. The dataset was divided into four splits and each split was further divided into four sets. A hybrid descriptor, a combination of SMILES and hydrogen suppressed graph (HSG), was employed to build reliable and robust QSPR models. The role of the index of ideality of correlation (IIC) was also studied in depth. We performed a comparative study to predict PCE using two target functions (TF1 without IIC and TF2 with IIC). Eight QSPR models were developed and the models developed with TF2 was shown robust and reliable. The QSPR model generated from split 4 was considered a leading model. The different statistical benchmarks were computed for the lead model and these were rtraining set2=0.7784; rinvisible training set2=0.7955; rcalibration set2=0.7738; rvalidation set2=0.7506; Qtraining set2=0.7691; Qinvisible training set2=0.7850; Qcalibration set2=0.7501; Qvalidation set2=0.7085; IICtraining set = 0.8590; IICinvisible training set = 0.8297; IICcalibration set = 0.8796; IICvalidation set = 0.8293, etc. The promoters of increase and decrease of endpoint PCE were also extracted.
Collapse
Affiliation(s)
- A Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - P Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| |
Collapse
|
8
|
Bai J, Peng C, Lv W, Liu J, Hei Y, Bo X. Vacancy Engineering to Regulate Photocatalytic Activity of Polymer Photosensitizers for Amplifying Photodynamic Therapy against Hypoxic Tumors. ACS Appl Mater Interfaces 2021; 13:39055-39065. [PMID: 34433248 DOI: 10.1021/acsami.1c09466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Polymer photosensitizers (PPSs) with the distinctive properties of good light-harvesting capability, high photostability, and excellent tumor retention effects have aroused great research interest in photodynamic therapy (PDT). However, their potential translation into clinic was often constrained by the hypoxic nature of tumor microenvironment, the aggregation-caused reduced production of reactive oxygen species (ROS), and the tedious procedure of manufacture. As a powerful and versatile strategy, vacancy engineering possesses the unique capability to effectively improve the photogenerated electron efficiency of nanomaterials for high-performance O2 and ROS production. Herein, by introducing vacancy engineering into the design of PPSs for PDT for the first time, we synthesized a novel PPS of Au-decorated polythionine (PTh) nanoconstructs (PTh@Au NCs) with the unique integrated features of distinguished O2 self-evolving function and highly efficient ROS generation for achieving the greatly enhanced PDT efficacy toward hypoxic tumor both in vitro and in vivo. The incorporation of Au into PTh leads to the special PTh-Au heterostructure-induced sulfur vacancies in PTh@Au NCs, which results in an efficient electron-hole separation performance and also plays a key role in a long lifetime of free electrons and holes. Accordingly, an ∼2- to 3-fold ROS generation and an ∼1.5-fold increase of O2 self-supply than the pure PTh nanoparticles (NPs) were obtained even under hypoxic conditions upon exposure to 650 nm light. By combining such superior ROS generation and O2 self-supply performances with the outstanding cellular internalization and tumor accumulation capacities, an advanced antitumor effect with the achievement of almost complete hypoxic tumor elimination in vivo or 88% cell destruction in vitro was acquired by the PTh@Au NCs. In addition, the distinctive facile one-step redox strategy for PTh@Au NCs synthesis compared to the reported PPSs for PDT also makes it beneficial for potential practical application. The first introduction of vacancy engineering concept into PPSs in the field of PDT proposed in this work offers a new strategy for the development and design highly efficient PPSs for PDT applications.
Collapse
Affiliation(s)
- Jing Bai
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Chengjia Peng
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Wenjia Lv
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Jingju Liu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Yashuang Hei
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Xiangjie Bo
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| |
Collapse
|
9
|
Abstract
We used NMR to show that the antipsychotic phenothiazine drugs promazine and promethazine bind to GDP-KRAS. Promazine also binds to oncogenic GDP-KRAS(G12D), and to wild type GppNHp-KRAS. A panel of additional phenothiazines bind to GDP-KRAS but with lower affinity than promazine or promethazine. Binding is most dependent on substitutions at C-2 of the tricyclic phenothiazine ring. Promazine was used to generate an NMR-driven HADDOCK model of the drug/GDP-KRAS complex. The structural model shows the tricyclic phenothiazine ring of promazine associates with the hydrophobic pocket p1 that is bordered by the central β sheet and Switch II in KRAS. Binding appears to stabilize helix 2 in a conformation that is similar to that seen in KRAS bound to other small molecules. Association of phenothiazines with KRAS may affect normal KRAS signaling that could contribute to multiple biological activities of these antipsychotic drugs. Moreover, the phenothiazine ring represents a new core scaffold on which to design modulators of KRAS activity.
Collapse
Affiliation(s)
- Xu Wang
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Alemayehu A Gorfe
- Department of Integrative Biology and Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - John A Putkey
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA.
| |
Collapse
|
10
|
Bhattarai N, Wang J, Nguyen D, Yang X, Helmers L, Paruch J, Li L, Zhang Y, Meng K, Wang A, Jayawickramarajah J, Wang B, Zeng S, Lu H. Nanoparticle encapsulation of non-genotoxic p53 activator Inauhzin-C for improved therapeutic efficacy. Theranostics 2021; 11:7005-7017. [PMID: 34093867 PMCID: PMC8171090 DOI: 10.7150/thno.57404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 04/26/2021] [Indexed: 11/15/2022] Open
Abstract
The tumor suppressor protein p53 remains in a wild type but inactive form in ~50% of all human cancers. Thus, activating it becomes an attractive approach for targeted cancer therapies. In this regard, our lab has previously discovered a small molecule, Inauhzin (INZ), as a potent p53 activator with no genotoxicity. Method: To improve its efficacy and bioavailability, here we employed nanoparticle encapsulation, making INZ-C, an analog of INZ, to nanoparticle-encapsulated INZ-C (n-INZ-C). Results: This approach significantly improved p53 activation and inhibition of lung and colorectal cancer cell growth by n-INZ-C in vitro and in vivo while it displayed a minimal effect on normal human Wi38 and mouse MEF cells. The improved activity was further corroborated with the enhanced cellular uptake observed in cancer cells and minimal cellular uptake observed in normal cells. In vivo pharmacokinetic evaluation of these nanoparticles showed that the nanoparticle encapsulation prolongates the half-life of INZ-C from 2.5 h to 5 h in mice. Conclusions: These results demonstrate that we have established a nanoparticle system that could enhance the bioavailability and efficacy of INZ-C as a potential anti-cancer therapeutic.
Collapse
Affiliation(s)
- Nimisha Bhattarai
- Department of Biochemistry & Molecular Biology and Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Jieqiong Wang
- Department of Biochemistry & Molecular Biology and Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Daniel Nguyen
- Department of Biochemistry & Molecular Biology and Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Xiaoxiao Yang
- Department of Chemistry, Georgia State University, Atlanta, GA, USA
| | - Linh Helmers
- Laboratory of Cellular Immunology, Ochsner Clinic Foundation, New Orleans, LA 70121, USA
| | - Jennifer Paruch
- Laboratory of Cellular Immunology, Ochsner Clinic Foundation, New Orleans, LA 70121, USA
| | - Li Li
- Laboratory of Cellular Immunology, Ochsner Clinic Foundation, New Orleans, LA 70121, USA
| | - Yiwei Zhang
- Department of Biochemistry & Molecular Biology and Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Kun Meng
- Department of Chemistry, Tulane University School of Science and Engineering, New Orleans, LA, USA
| | - Alun Wang
- Department of Pathology, Tulane University School of Medicine, New Orleans, LA, USA
| | | | - Binghe Wang
- Department of Chemistry, Georgia State University, Atlanta, GA, USA
| | - Shelya Zeng
- Department of Biochemistry & Molecular Biology and Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Hua Lu
- Department of Biochemistry & Molecular Biology and Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| |
Collapse
|
11
|
Grandis A, Gardini A, Tagliavia C, Salamanca G, Graïc JM, De Silva M, Bombardi C. Anatomical organization of the lateral cervical nucleus in Artiodactyls. Vet Res Commun 2021; 45:87-99. [PMID: 33866493 PMCID: PMC8373732 DOI: 10.1007/s11259-021-09788-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/05/2021] [Indexed: 12/02/2022]
Abstract
The presence of the lateral cervical nucleus (LCN) in different mammals, including humans, has been established in a number of anatomical research works. The LCN receives its afferent inputs from the spinocervical tract, and conveys this somatosensory information to the various brain areas, especially the thalamus. In the present study, the organization of the calf and pig LCN was examined through the use of thionine staining and immunohistochemical methods combined with morphometrical analyses. Specifically, the localization of calbindin-D28k (CB-D28k) and neuronal nitric oxide synthase (nNOS) in the LCN was investigated using the immunoperoxidase method. Calf and pig LCN appear as a clearly defined column of gray matter located in the three cranial segments of the cervical spinal cord. Thionine staining shows that polygonal neurons represent the main cell type in both species. The calf and pig LCN contained CB-D28k-immunoreactive (IR) neurons of varying sizes. Large neurons are probably involved in the generation of the cervicothalamic pathway. Small CB-D28k-IR neurons, on the other hand, could act as local interneurons. The immunoreactivity for nNOS was found to be mainly located in thin neuronal processes that could represent the terminal axonal portion of nNOS-IR found in laminae III e IV. This evidence suggests that nitric oxide (NO) could modulate the synaptic activity of the glutamatergic spinocervical tracts. These findings suggest that the LCN of Artiodactyls might play an important role in the transmission of somatosensory information from the spinal cord to the higher centers of the brain.
Collapse
Affiliation(s)
- Annamaria Grandis
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy
| | - Anna Gardini
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy
| | - Claudio Tagliavia
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy
| | - Giulia Salamanca
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy
| | - Jean-Marie Graïc
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
| | - Margherita De Silva
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy
| | - Cristiano Bombardi
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy.
| |
Collapse
|
12
|
Xiao Q, Mai B, Nie Y, Yuan C, Xiang M, Shi Z, Wu J, Leung W, Xu C, Yao SQ, Wang P, Gao L. In Vitro and In Vivo Demonstration of Ultraefficient and Broad-Spectrum Antibacterial Agents for Photodynamic Antibacterial Chemotherapy. ACS Appl Mater Interfaces 2021; 13:11588-11596. [PMID: 33656316 DOI: 10.1021/acsami.0c20837] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Increasing threats from both pathogenic infections and antibiotic resistance highlight the pressing demand for nonantibiotic agents and alternative therapies. Herein, we report several new phenothiazinium-based derivatives, which could be readily synthesized via fragment-based assembly, which exhibited remarkable bactericidal activities both in vitro and in vivo. Importantly, in contrast to numerous clinically and preclinically used antibacterial photosensitizers, these compounds were able to eliminate various types of microorganisms, including Gram-(+) Staphylococcus aureus (S. aureus), Gram-(-) Escherichia coli, multidrug-resistant S. aureus, and their associated biofilms, at low drug and light dosages (e.g., 0.21 ng/mL in vitro and 1.63 ng/cm2 in vivo to eradicate S. aureus at 30 J/cm2). This study thus unveils the potential of these novel phenothiaziniums as potent antimicrobial agents for highly efficient photodynamic antibacterial chemotherapy.
Collapse
Affiliation(s)
- Qicai Xiao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Bingjie Mai
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Yichu Nie
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Chuang Yuan
- Department of Hematology, Xiangya Hospital, Central South University, Changsha 410000, P. R. China
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen & First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen 518035, P. R. China
| | - Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Zihan Shi
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Juan Wu
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Wingnang Leung
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Chuanshan Xu
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, P. R. China
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Pan Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
| |
Collapse
|
13
|
He B, Wang K. A "signal off" aptasensor based on NiFe 2O 4 NTs and Au@Pt NRs for the detection of deoxynivalenol via voltammetry. Mikrochim Acta 2021; 188:23. [PMID: 33404751 DOI: 10.1007/s00604-020-04666-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022]
Abstract
A "signal off" aptasensor has been developed to detect deoxynivalenol (DON). DON aptamers (Apt) were used as biological recognition elements, nickel ferrite nanotubes (NiFe2O4 NTs) are used as the base material to increase the surface area of the electrode, and the Au@Pt NRs were used as carriers for loading signal labels thionine (Thi) and complementary strand (cDNA). In the presence of DON it will be specifically captured by Apt, then the competition mechanism was triggered; the signal molecules fall off from the electrode surface, which then causes the electrode signal to decrease. NiFe2O4 NTs and Au@Pt NRs were characterized by transmission electron microscope (TEM), scanning electron micrograph (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD). The designed sensor provides a concentration range of 1 × 10-8 to 5 × 10-4 mg mL-1 and limit of detection of 3.02 × 10-9 mg mL-1. Determination of DON in corn meal samples was investigated and the recovery was 98.4 to 103.5%. The proposed aptasensor displayed good sensitivity, high specificity, and acceptable reproducibility. Graphical abstract Based on NiFe2O4 NTs as substrate material and Au@Pt NRs as signal label prepared DON aptasensor for the determination of DON.
Collapse
Affiliation(s)
- Baoshan He
- School of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Lianhua Road 100#, Zhengzhou High & New Technology Industries Development Zone, Zhengzhou, 450001, Henan Province, People's Republic of China.
| | - Kai Wang
- School of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Lianhua Road 100#, Zhengzhou High & New Technology Industries Development Zone, Zhengzhou, 450001, Henan Province, People's Republic of China
| |
Collapse
|
14
|
Yang W, Liu X, Song C, Ji S, Yang J, Liu Y, You J, Zhang J, Huang S, Cheng W, Shao Z, Li L, Yang S. Structure-activity relationship studies of phenothiazine derivatives as a new class of ferroptosis inhibitors together with the therapeutic effect in an ischemic stroke model. Eur J Med Chem 2021; 209:112842. [PMID: 33065375 DOI: 10.1016/j.ejmech.2020.112842] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/23/2020] [Accepted: 09/09/2020] [Indexed: 02/05/2023]
Abstract
Ferroptosis is a new type of programmed cell death discovered recently and has been demonstrated to be involved in a number of human diseases such as ischemic stroke. Ferroptosis inhibitors are expected to have potential to treat these diseases. Herein, we report the identification of promethazine derivatives as a new type of ferroptosis inhibitors. Structure-activity relationship (SAR) analyses led to the discovery of the most potent compound 2-(1-(4-(4-methylpiperazin-1-yl)phenyl)ethyl)-10H-phenothiazine (51), which showed an EC50 (half maximal effective concentration) value of 0.0005 μM in the erastin-induced HT1080 cell ferroptosis model. In the MCAO (middle cerebral artery occlusion) ischemic stroke model, 51 presented an excellent therapeutic effect. This compound also displayed favorable pharmacokinetic properties, in particular, a good ability to permeate the blood-brain barrier. Overall, 51 could be a promising lead compound for the treatment of ferroptosis related diseases and deserves further investigations.
Collapse
Affiliation(s)
- Wei Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xiaolong Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; College of Medicine, Yan'an University, Yan'an, Shanxi, 716000, China
| | - Chunli Song
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Sen Ji
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jianhong Yang
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yang Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jing You
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jie Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Shenzhen Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Wei Cheng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zhenhua Shao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Linli Li
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Shengyong Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
| |
Collapse
|
15
|
Al Zahrani NA, El-Shishtawy RM, Elaasser MM, Asiri AM. Synthesis of Novel Chalcone-Based Phenothiazine Derivatives as Antioxidant and Anticancer Agents. Molecules 2020; 25:molecules25194566. [PMID: 33036301 PMCID: PMC7583060 DOI: 10.3390/molecules25194566] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/22/2020] [Accepted: 10/05/2020] [Indexed: 12/18/2022] Open
Abstract
Based on reported results for the potential medicinal impact of phenothiazine core, as well as the chalcone skeleton that is widely present in many natural products, together with their reported bioactivities, the present work was aimed at combining both moieties in one molecular skeleton and to synthesize and characterize a novel series of chalone-based phenothiazine derivatives. For this purpose, 2-acetylphenothiazine was N-alkylated, followed by the Claisen-Schmidt reaction to produce the chalcones with good yield. Antioxidant activity, as evaluated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging, was assessed to determine if their antioxidant potential was comparable with ascorbic acid, and attributable to the phenothiazine core. Screening anticancer activities of the synthesized chalone-based phenothiazine derivatives against human breast cancer cell line MCF-7 cells, and human hepatocellular carcinoma HepG-2 cells, compared with standard drugs cisplatin and doxorubicin, was evaluated. The results revealed that compounds 4a, 4b, 4d, 4h, 4j, 4k, 4m, 4o, and 4p were good against human hepatocellular carcinoma HepG-2 cells, and among these compounds 4b and 4k were the most effective compounds, with IC50 values of 7.14 μg/mL and 7.6 1 μg/mL, respectively. On the other hand, compounds 4a, 4b, 4k, and 4m were good against human breast cancer cell line MCF-7 cells and, among these compounds, 4k and 4b were the most effective compounds, with IC50 values of 12 μg/mL and 13. 8 μg/mL, respectively. The overall results suggest that these compounds could, potentially, be further modified for the formation of more potent antioxidant and anticancer agents.
Collapse
Affiliation(s)
- Nourah A. Al Zahrani
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (N.A.A.Z.); (A.M.A.)
- Chemistry Department, Faculty of Science, University of Jeddah, Jeddah 21959, Saudi Arabia
| | - Reda M. El-Shishtawy
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (N.A.A.Z.); (A.M.A.)
- Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division, National Research Centre, Dokki, Cairo 12611, Egypt
- Correspondence:
| | - Mahmoud M. Elaasser
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11759, Egypt;
| | - Abdullah M. Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (N.A.A.Z.); (A.M.A.)
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
16
|
Udrea AM, Avram S, Nistorescu S, Pascu ML, Romanitan MO. Laser irradiated phenothiazines: New potential treatment for COVID-19 explored by molecular docking. J Photochem Photobiol B 2020; 211:111997. [PMID: 32829256 PMCID: PMC7428740 DOI: 10.1016/j.jphotobiol.2020.111997] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 07/03/2020] [Accepted: 08/12/2020] [Indexed: 12/17/2022]
Abstract
The worldwide infection with the new Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2) demands urgently new potent treatment(s). In this study we predict, using molecular docking, the binding affinity of 15 phenothiazines (antihistaminic and antipsychotic drugs) when interacting with the main protease (Mpro) of SARS-CoV-2. Additionally, we tested the binding affinity of photoproducts identified after irradiation of phenothiazines with Nd:YAG laser beam at 266 nm respectively 355 nm. Our results reveal that thioridazine and its identified photoproducts (mesoridazine and sulforidazine) have high biological activity on the virus Mpro. This shows that thioridazine and its two photoproducts might represent new potent medicines to be used for treatment in this outbreak. Such results recommend these medicines for further tests on cell cultures infected with SARS-CoV-2 or animal model. The transition to human subjects of the suggested treatment will be smooth due to the fact that the drugs are already available on the market.
Collapse
Affiliation(s)
- Ana-Maria Udrea
- Laser Department, National Institute for Laser, Plasma and Radiation Physics, Magurele, Ilfov, Romania; Department of Anatomy, Animal Biology, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Speranta Avram
- Department of Anatomy, Animal Biology, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Simona Nistorescu
- Laser Department, National Institute for Laser, Plasma and Radiation Physics, Magurele, Ilfov, Romania; Department of Botany and Microbiology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Mihail-Lucian Pascu
- Laser Department, National Institute for Laser, Plasma and Radiation Physics, Magurele, Ilfov, Romania; Faculty of Physics, University of Bucharest, Magurele, Romania.
| | - Mihaela Oana Romanitan
- Stockholm South General Hospital, Department of Emergency internal medicine and Neurology, Karolinska Institute Stroke Research Network at Södersjukhuset, 118 83 Stockholm, Sweden
| |
Collapse
|
17
|
Li S, Cheng T, Yin C, Zhou S, Fan Q, Wu W, Jiang X. Phenothiazine versus Phenoxazine: Structural Effects on the Photophysical Properties of NIR-II AIE Fluorophores. ACS Appl Mater Interfaces 2020; 12:43466-43473. [PMID: 32907323 DOI: 10.1021/acsami.0c12773] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Aggregation-induced emission (AIE) fluorophores with second near-infrared window (NIR-II) fluorescence are very promising for in vivo imaging because they emit fluorescence in an aggregated state and provide desirable imaging resolution and depth. Up to now, only a limited number of NIR-II AIE fluorophores have been developed. Therefore, synthesizing novel NIR-II AIE fluorophores and investigating structural effects on their photophysical properties are very important for the development of AIE probes. In this work, we synthesized two donor-acceptor-donor-type NIR fluorophores with emissions extending into the NIR-II window named DPTQ-PhPTZ and DPTQ-PhPXZ with phenothiazine (PTZ) and phenoxazine (PXZ) derivatives as the electron donors, respectively, and studied their photophysical properties via theoretical and experimental approaches as well as the properties in NIR-II in vivo imaging. The PTZ and PXZ moieties provided typical AIE characteristics. Despite the very similar chemical structures of PTZ and PXZ, DPTQ-PhPTZ and DPTQ-PhPXZ exhibited rather different photophysical properties, for example, compared to DPTQ-PhPTZ, DPTQ-PhPXZ had higher quantum yield (QY) both in solution and in the aggregated state and its QY was less sensitive to solvent polarity. After being coated with an amphiphilic copolymer F-127, the fluorophores maintained fluorescence, and the formed fluorescent polymer nanoparticles (NPs) had satisfactory tumor accumulation and biocompatibility, implying that they are applicable for in vivo tumor detection.
Collapse
Affiliation(s)
- Shun Li
- Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Tianyuan Cheng
- Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Changfeng Yin
- Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Sensen Zhou
- Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Quli Fan
- Key Lab Organ Elect & Informat Displays, Nanjing University Posts & Telecommun, Nanjing 210023, P. R. China
| | - Wei Wu
- Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Xiqun Jiang
- Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| |
Collapse
|
18
|
Figon F, Munsch T, Croix C, Viaud-Massuard MC, Lanoue A, Casas J. Uncyclized xanthommatin is a key ommochrome intermediate in invertebrate coloration. Insect Biochem Mol Biol 2020; 124:103403. [PMID: 32574597 DOI: 10.1016/j.ibmb.2020.103403] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/23/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Ommochromes are widespread pigments that mediate multiple functions in invertebrates. The two main families of ommochromes are ommatins and ommins, which both originate from the kynurenine pathway but differ in their backbone, thereby in their coloration and function. Despite its broad significance, how the structural diversity of ommochromes arises in vivo has remained an open question since their first description. In this study, we combined organic synthesis, analytical chemistry and organelle purification to address this issue. From a set of synthesized ommatins, we derived a fragmentation pattern that helped elucidating the structure of new ommochromes. We identified uncyclized xanthommatin as the elusive biological intermediate that links the kynurenine pathway to the ommatin pathway within ommochromasomes, the ommochrome-producing organelles. Due to its unique structure, we propose that uncyclized xanthommatin functions as a key branching metabolite in the biosynthesis and structural diversification of ommatins and ommins, from insects to cephalopods.
Collapse
Affiliation(s)
- Florent Figon
- Institut de Recherche sur la Biologie de l'Insecte, UMR CNRS 7261, Université de Tours, 37200, Tours, France.
| | - Thibaut Munsch
- Biomolécules et Biotechnologies Végétales, EA 2106, Université de Tours, 37200, Tours, France
| | - Cécile Croix
- Génétique, Immunothérapie, Chimie et Cancer, UMR CNRS 7292, Université de Tours, 37200, Tours, France
| | | | - Arnaud Lanoue
- Biomolécules et Biotechnologies Végétales, EA 2106, Université de Tours, 37200, Tours, France
| | - Jérôme Casas
- Institut de Recherche sur la Biologie de l'Insecte, UMR CNRS 7261, Université de Tours, 37200, Tours, France
| |
Collapse
|
19
|
Peng Y, Li R, Yu M, Yi X, Zhu H, Li Z, Yang Y. Electrochemical biosensor for detection of MON89788 gene fragments with spiny trisoctahedron gold nanocrystal and target DNA recycling amplification. Mikrochim Acta 2020; 187:494. [PMID: 32778963 DOI: 10.1007/s00604-020-04467-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 07/27/2020] [Indexed: 12/26/2022]
Abstract
The shape-controlled synthesis of gold nanocrystals via shape induction of hexadecyltrimethylammonium chloride, potassium bromide, and potassium iodide and enantioselective direction of L-cysteine is reported. The resulting gold nanocrystals (STO-Au) offer spiny trisoctahedron nanostructures with good monodispersity and enhanced exposed high-index facets and high catalytic activity. Construction of the electrochemical sensing platform for MON89788 gene involves the modification of STO-Au, thionine (Thi), and labeled bipedal DNA probe 1 or 2 (P1 or P2) for target DNA-induced recycling amplification. In the detection, two surface DNA probes were immobilized on gold electrode via the Au-S bond. Then, hairpin DNA 1 (H1), Thi-STO-Au-P1, and Thi-STO-Au-P2 self-assemble into two-dimensional DNA nanopores (DNPs) on the electrode surface. Target DNA hybridizes with hairpin DNA 2 (H2) to open hairpin structure of H2. The opened H2 binds with H1 in the DNPs to release Thi-STO-Au-P1, Thi-STO-Au-P2, and target DNA by toehold-mediated strand-displacement. The utilization of target DNA-induced recycling allows one target DNA to release 2N STO-Au-labeled DNA strands, promoting significant signal amplification. The detection signal is further enhanced by the catalyzed redox reaction of Thi with STO-Au. The differential pulse voltammetric signal, best measured at - 0.18 V vs. Ag/AgCl, decreases linearly with increasing concentration of MON89788 in the range 0.02-8 × 104 fM, and the detection limit is 0.0048 fM (S/N = 3). The proposed method was successfully applied for electrochemical detection of MON89788 gene fragments in the PCR products from genetically modified soybean. Graphical Abstract We develop l-cysteine controlled synthesis of spiny trisoctahedron gold nanocrystals with good monodispersity and highly exposed high-index facets. The architecture achieves to ultrahigh catalytic activity. The electrochemical biosensor based on gold nanocrystals and target DNA recycling amplification provides advantage of sensitivity, repeatability, and regeneration-free.
Collapse
Affiliation(s)
- Yuanfeng Peng
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Ruiyi Li
- , Lihu Road 1800, Wuxi, 214122, Jiangsu, China
| | - Minyi Yu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Xiaowen Yi
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Haiyan Zhu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Zaijun Li
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China.
| | - Yongqiang Yang
- National Graphene Product Quality Supervision and Inspection Center, Jiangsu Province Special Equipment Safety Supervision and Inspection Institute Branch, Wuxi, 214071, China.
| |
Collapse
|
20
|
Bejan A, Doroftei F, Cheng X, Marin L. Phenothiazine-chitosan based eco-adsorbents: A special design for mercury removal and fast naked eye detection. Int J Biol Macromol 2020; 162:1839-1848. [PMID: 32745550 DOI: 10.1016/j.ijbiomac.2020.07.232] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 12/16/2022]
Abstract
The aim of the paper was to investigate the ability of an eco-friendly luminescent xerogel prepared by chitosan crosslinking with a phenothiazine luminogen to detect and remove heavy metals. Its ability to give a divergent morphological and optical response towards fifteen environmental relevant metals was investigated by naked eye and UV lamp, fluorescence spectroscopy and scanning electron microscopy. A distinct response was noted for mercury, consisting in the transformation of the xerogel into a rubber-like material accompanied by the red shifting of the color of emitted light from yellow-green to greenish-yellow domain. The particularities of the metals anchoring into the xerogel were analyzed by FTIR spectroscopy and X-ray diffraction. The morphological changes and the metal uptake were analyzed by SEM-EDAX, swelling and gravimetric methods. It was concluded that mercury has a superior affinity towards this heteroatoms rich system, leading to a secondary crosslinking. This directed a great absorption capacity of 1673 mg/g and a specific morphological response for mercury ion concentrations up to 0.001 ppm.
Collapse
Affiliation(s)
- Andrei Bejan
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania
| | - Florica Doroftei
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania
| | - Xinjian Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China.
| | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania.
| |
Collapse
|
21
|
Niedermeier S, Scriba GKE. Chiral separation of four phenothiazines by nonaqueous capillary electrophoresis and quality by design-based method development for quantification of dextromepromazine as chiral impurity of levomepromazine. J Chromatogr A 2020; 1624:461232. [PMID: 32540073 DOI: 10.1016/j.chroma.2020.461232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/08/2020] [Accepted: 05/10/2020] [Indexed: 11/18/2022]
Abstract
The separation of the enantiomers of mepromazine, promethazine, thioridazine and alimemazine was studied by nonaqueous capillary electrophoresis in the presence of cyclodextrins using 1 M acetic acid and 50 mM ammonium acetate in methanol as background electrolyte. Heptakis(2,3-di-O-acetyl-6-O-sulfo)-β-cyclodextrin, heptakis(2,3-di-O-methyl-6-O-sulfo)-β-cyclodextrin (HDMS-β-CD) and octakis(2,3-di-O-methyl-6-O-sulfo)-γ-cyclodextrin were the most effective chiral selectors for mepromazine, promethazine and alimemazine. Subsequently, a method for the determination of dextromepromazine as chiral impurity of levomepromazine was developed employing quality by design principles. Using HDMS-β-CD as selector, a fractional factorial resolution V+ design was employed for evaluating the knowledge space, while a central composite face centered design provided further method optimization and the basis for the computation of the design space by Monte Carlo simulations. The final experimental conditions included a 30/40.2 cm fused-silica capillary with 75 µm inner diameter and a background electrolyte composed of 0.75 M acetic acid and 55 mM ammonium acetate in methanol containing 27.5 mg/mL HDMS-β-CD. The applied voltage was 22 kV and the capillary temperature was 15°C. Following method robustness testing via a Plackett-Burman design, the method was validated for dextromepromazine in the range of 0.01 to 3.0 % relative to a concentration of 0.74 mg/mL levomepromazine and applied to the analysis of reference standards of the European Pharmacopoeia and commercial tablets. The assay also allowed the detection of levomepromazine sulfoxide although the quantitation of the compound was hampered by the poor peak shape of the late migrating diastereomer.
Collapse
Affiliation(s)
- Stephan Niedermeier
- Department of Pharmaceutical and Medicinal Chemistry, Friedrich Schiller University Jena, Philosophenweg 14, 07743 Jena, Germany
| | - Gerhard K E Scriba
- Department of Pharmaceutical and Medicinal Chemistry, Friedrich Schiller University Jena, Philosophenweg 14, 07743 Jena, Germany.
| |
Collapse
|
22
|
Li S, Yin C, Wang R, Fan Q, Wu W, Jiang X. Second Near-Infrared Aggregation-Induced Emission Fluorophores with Phenothiazine Derivatives as the Donor and 6,7-Diphenyl-[1,2,5]Thiadiazolo[3,4-g]Quinoxaline as the Acceptor for In Vivo Imaging. ACS Appl Mater Interfaces 2020; 12:20281-20286. [PMID: 32279482 DOI: 10.1021/acsami.0c03769] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Traditional organic fluorophores generally have hydrophobic conjugated backbones and exhibit an aggregation-caused quenching emission property, which limits greatly their applications in the biological field. Aggregation-induced emission (AIE) fluorophores can breakthrough this shortcoming and are more promising in biological imaging. In this paper, we synthesized three novel donor-acceptor-donor-type second near-infrared (NIR-II) fluorophores and studied their geometric and electronic structures and photophysical properties by both theoretical and experimental studies. All the three fluorophores had typical AIE characteristics, and their emission wavelength spanned the traditional near-infrared and NIR-II regions. They exhibited much stronger fluorescence after being encapsulated in polymer nanoparticles (NPs) than in solutions, and the fluorophore-loaded NPs had desirable biosafety and significant tumor accumulation, indicating that they have great application potentials in tumor detection.
Collapse
Affiliation(s)
- Shun Li
- Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Changfeng Yin
- Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Ruonan Wang
- Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China
| | - Wei Wu
- Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Xiqun Jiang
- Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| |
Collapse
|
23
|
Molnar E, Gal E, Gaina L, Cristea C, Fischer-Fodor E, Perde-Schrepler M, Achimas-Cadariu P, Focsan M, Silaghi-Dumitrescu L. Novel Phenothiazine-Bridged Porphyrin-(Hetero)aryl dyads: Synthesis, Optical Properties, In Vitro Cytotoxicity and Staining of Human Ovarian Tumor Cell Lines. Int J Mol Sci 2020; 21:ijms21093178. [PMID: 32365924 PMCID: PMC7246510 DOI: 10.3390/ijms21093178] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/24/2020] [Accepted: 04/26/2020] [Indexed: 01/28/2023] Open
Abstract
We report here the synthetic procedure applied for the preparation of new AB3-type and trans-A2B2 type meso-halogenophenothiazinyl-phenyl-porphyrin derivatives, their metal core complexation and their peripheral modification using Suzuki-Miyaura cross coupling reactions with various (hetero)aryl (phenothiazinyl, 7-formyl-phenothiazinyl, (9-carbazolyl)-phenyl and 4-formyl-phenyl, phenyl) boronic acid derivatives. The meso-phenothiazinyl-phenyl-porphyrin (MPP) dyes family was thus extended by a series of novel phenothiazine-bridged porphyrin-(hetero)aryl dyads characterized by UV-Vis absorption/emission properties typical to the porphyrin chromophore, slightly modulated by increasing the size of peripheral substituents. Three phenothiazine-bridged porphyrin-heteroaryl dyads with fluorescence emission above 655 nm were selected as fluorophores in red spectral region for applications in cellular staining of human ovarian tumors. In vitro experiments of cell metabolic activity displayed a moderate toxicity on human ovarian tumor cell lines (OVCAR-3, cisplatin-sensitive A2780 and cisplatin-resistant A2780cis respectively). Visualization of the stained living cells was performed both by fluorescence microscopy imaging and by fluorescence lifetime imaging under two photon excitation (TPE-FLIM), confirming their cellular uptake and the capability of staining the cell nucleus.
Collapse
Affiliation(s)
- Eva Molnar
- The Research Center on Fundamental and Applied Heterochemistry, Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos street, RO-400028 Cluj-Napoca, Romania; (E.M.); (E.G.); (L.G.); (L.S.-D.)
| | - Emese Gal
- The Research Center on Fundamental and Applied Heterochemistry, Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos street, RO-400028 Cluj-Napoca, Romania; (E.M.); (E.G.); (L.G.); (L.S.-D.)
| | - Luiza Gaina
- The Research Center on Fundamental and Applied Heterochemistry, Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos street, RO-400028 Cluj-Napoca, Romania; (E.M.); (E.G.); (L.G.); (L.S.-D.)
| | - Castelia Cristea
- The Research Center on Fundamental and Applied Heterochemistry, Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos street, RO-400028 Cluj-Napoca, Romania; (E.M.); (E.G.); (L.G.); (L.S.-D.)
- Correspondence: ; Tel.: +40-264-593833
| | - Eva Fischer-Fodor
- Department of Radiobiology and Tumor Biology, Institute of Oncology “Prof.Dr. Ion Chiricuta”, 34-36 Republicii street, RO-400015 Cluj-Napoca, Romania; (E.F.-F.); (M.P.-S.)
- Medfuture Research Center for Advanced Medicine, University of Medicine and Pharmacy Iuliu Hatieganu, 8 Babes street, RO-400012 Cluj-Napoca, Romania
| | - Maria Perde-Schrepler
- Department of Radiobiology and Tumor Biology, Institute of Oncology “Prof.Dr. Ion Chiricuta”, 34-36 Republicii street, RO-400015 Cluj-Napoca, Romania; (E.F.-F.); (M.P.-S.)
| | - Patriciu Achimas-Cadariu
- Department of Surgery, Institute of Oncology “Prof.Dr. Ion Chiricuta”, 34-36 Republicii street, 400015 Cluj-Napoca, Romania;
- Department of Surgery and Gynecological Oncology, University of Medicine and Pharmacy Iuliu Hatieganu, 23 Marinescu street, 400337 Cluj-Napoca, Romania
| | - Monica Focsan
- Institute for Interdisciplinary Experimental Research in Bionanoscience, Nanobiophotonics Laboratory, Babeş-Bolyai University, 42 Laurian street, 400271 Cluj-Napoca, Romania;
| | - Luminita Silaghi-Dumitrescu
- The Research Center on Fundamental and Applied Heterochemistry, Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos street, RO-400028 Cluj-Napoca, Romania; (E.M.); (E.G.); (L.G.); (L.S.-D.)
| |
Collapse
|
24
|
Toropov AA, Toropova AP, Marzo M, Carnesecchi E, Selvestrel G, Benfenati E. Pesticides, cosmetics, drugs: identical and opposite influences of various molecular features as measures of endpoints similarity and dissimilarity. Mol Divers 2020; 25:1137-1144. [PMID: 32323128 DOI: 10.1007/s11030-020-10085-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/06/2020] [Indexed: 11/26/2022]
Abstract
The similarity is an important category in natural sciences. A measure of similarity for a group of various biochemical endpoints is suggested. The list of examined endpoints contains (1) toxicity of pesticides towards rainbow trout; (2) human skin sensitization; (3) mutagenicity; (4) toxicity of psychotropic drugs; and (5) anti HIV activity. Further applying and evolution of the suggested approach is discussed. In particular, the conception of the similarity (dissimilarity) of endpoints can play the role of a "useful bridge" between quantitative structure property/activity relationships (QSPRs/QSARs) and read-across technique.
Collapse
Affiliation(s)
- Andrey A Toropov
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Alla P Toropova
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy.
| | - Marco Marzo
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Edoardo Carnesecchi
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80177, 3508 TD, Utrecht, The Netherlands
| | - Gianluca Selvestrel
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Emilio Benfenati
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| |
Collapse
|
25
|
Li Y, Liu D, Zhu C, Shen X, Liu Y, You T. Sensitivity programmable ratiometric electrochemical aptasensor based on signal engineering for the detection of aflatoxin B1 in peanut. J Hazard Mater 2020; 387:122001. [PMID: 31901843 DOI: 10.1016/j.jhazmat.2019.122001] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/11/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
Accurately monitoring of aflatoxin B1 (AFB1), the most hazardous mycotoxin in agricultural products, is essential for the public health, but various testing demands (e.g. detection range, sensitivity) for different samples can be challenging for sensors. Here, we developed a sensitivity-programmable ratiometric electrochemical aptasensor for AFB1 analysis in peanut. Thionine functionalized reduced graphene oxide (THI-rGO) served as reference signal generator, ferrocene-labelled aptamer (Fc-apt) output the response signal. During analysis, the formation of Fc-apt-AFB1 complex led to its stripping from the electrode and faded the current intensity of Fc (IFc), while the current intensity of THI (ITHI) was enhanced. And ratiometric detection of AFB1 was achieved by using the current intensity ratio (ITHI/IFc) as quantitative signal. Compared with ratiometric strategies that highly rely on the labelled aptamers, the proposed strategy could regulate the value of ITHI/IFc by changing the modification of Fc-apt. And the detection sensitivity was found to be closely related to ITHI/IFc. Under the optimal conditions, the fabricated aptasensor with a dynamic range from 0.05-20 ng mL-1 and a detection limit of 0.016 ng mL-1 for AFB1 analysis. Besides, it exhibited excellent selectivity, reliability and reproducibility. The proposed sensitivity-programmable biosensor can be applied to detect various aptamer-recognized mycotoxins in agricultural sensing.
Collapse
Affiliation(s)
- Yuye Li
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Dong Liu
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Chengxi Zhu
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiuli Shen
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yang Liu
- College of Science and Engineering, James Cook University, Townsville, Queensland 4811, Australia
| | - Tianyan You
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| |
Collapse
|
26
|
Kondzior M, Grabowska I. Antibody-Electroactive Probe Conjugates Based Electrochemical Immunosensors. Sensors (Basel) 2020; 20:E2014. [PMID: 32260217 PMCID: PMC7180895 DOI: 10.3390/s20072014] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/12/2022]
Abstract
Suitable immobilization of a biorecognition element, such as an antigen or antibody, on a transducer surface is essential for development of sensitive and analytically reliable immunosensors. In this review, we report on (1) methods of antibody prefunctionalization using electroactive probes, (2) methods for immobilization of such conjugates on the surfaces of electrodes in electrochemical immunosensor construction and (3) the use of antibody-electroactive probe conjugates as bioreceptors and sensor signal generators. We focus on different strategies of antibody functionalization using the redox active probes ferrocene (Fc), anthraquinone (AQ), thionine (Thi), cobalt(III) bipyridine (Co(bpy)33+), Ru(bpy)32+ and horseradish peroxidase (HRP). In addition, new possibilities for antibody functionalization based on bioconjugation techniques are presented. We discuss strategies of specific, quantitative antigen detection based on (i) a sandwich format and (ii) a direct signal generation scheme. Further, the integration of different nanomaterials in the construction of these immunosensors is presented. Lastly, we report the use of a redox probe strategy in multiplexed analyte detection.
Collapse
Affiliation(s)
| | - Iwona Grabowska
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland;
| |
Collapse
|
27
|
Chen W, Li G, Chen C, Sheng J, Yang L. Aggregation-enhanced emission enables phenothiazine coumarin as a robust ratiometric fluorescent for rapid and selective detection of HClO. Spectrochim Acta A Mol Biomol Spectrosc 2020; 228:117724. [PMID: 31753645 DOI: 10.1016/j.saa.2019.117724] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/27/2019] [Accepted: 10/27/2019] [Indexed: 06/10/2023]
Abstract
By taking advantage of phenothiazine moiety as an electron-donating group, a novel donor-acceptor (D-A) type coumarin dye, PTZ-Et, was developed. The introduction of phenothiazine moiety not only caused emission red-shifting and Stokes shift enlarging, but also endowed PTZ-Et with significant aggregation-enhanced emission (AEE) features, thereby enabled PTZ-Et as a robust ratiometric fluorescent probe for HClO detection. Upon oxidation of the sulfur atom on phenothiazine into sulfoxide, PTZ-Et displayed remarkable ratiometric fluorescence response (over 150 folds variations of F534/F626) toward HClO with rapid response time (<30 s) and ultra-sensitivity (LOD = 15 nM). Additionally, the corresponding sensing mechanism of PTZ-Et for HClO was fully elucidated through the successful purification and well characterization (1H NMR, 13C NMR, HRMS, and single crystal data) of the corresponding reaction product between PTZ-Et and HClO. Significantly, PTZ-Et was capable of monitoring both exogenous and endogenous HClO in living RAW 264.7 cells by ratiometric fluorescence imaging.
Collapse
Affiliation(s)
- Wenqiang Chen
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, Guangxi, 530001, PR China.
| | - Guofang Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, Guangxi, 530001, PR China
| | - Chunfei Chen
- Guangxi Zhuang Autonomous Region Environmental Monitoring Centre, Nanning, 530028, PR China
| | - Jiarong Sheng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, Guangxi, 530001, PR China
| | - Lei Yang
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, PR China.
| |
Collapse
|
28
|
Qiu XY, Liu SJ, Hao YQ, Sun JW, Chen S. Phenothiazine-based fluorescence probe for ratiometric imaging of hydrazine in living cells with remarkable Stokes shift. Spectrochim Acta A Mol Biomol Spectrosc 2020; 227:117675. [PMID: 31670047 DOI: 10.1016/j.saa.2019.117675] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/28/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
By modifying the 10-butyl-2-methoxy-10H-phenothiazine-3-carbaldehyde with malonontrile group, a new fluorescent sensor PBM for selective detection of hydrazine in ratiometric mode has been developed. Probe PBM owned the advantages of quick response (10 min), remarkable Stokes shift (168 nm for PBM, 161 nm for PBM-NH2), excellent selectivity, high sensitivity (detection limit of 63.2 nM was obtained from in vitro experiment), profound ratiometric change (82-fold) and low cytotoxicity in response to hydrazine. Additionally, it could be utilized to monitor hydrazine in gas state with various concentrations through vivid color changes and imaged hydrazine in living MCF-7 cells with excellent performance.
Collapse
Affiliation(s)
- Xiao-Yang Qiu
- College of Science & Technology, Ningbo University, Ningbo, Zhejiang Province, 315212, PR China; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, PR China.
| | - Shu-Juan Liu
- College of Science & Technology, Ningbo University, Ningbo, Zhejiang Province, 315212, PR China
| | - Yuan-Qiang Hao
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, PR China
| | - Jing-Wen Sun
- College of Pharmacy, Qiqihar Medical University, Qiqihar, Heilongjiang Province, 161006, PR China
| | - Song Chen
- College of Pharmacy, Qiqihar Medical University, Qiqihar, Heilongjiang Province, 161006, PR China.
| |
Collapse
|
29
|
Buene AF, Christensen M, Hoff BH. Effect of Auxiliary Donors on 3,8-Phenothiazine Dyes for Dye-Sensitized Solar Cells. Molecules 2019; 24:molecules24244485. [PMID: 31817838 PMCID: PMC6969916 DOI: 10.3390/molecules24244485] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/01/2019] [Accepted: 12/06/2019] [Indexed: 11/25/2022] Open
Abstract
Phenothiazines are one of the more common dye scaffolds for dye-sensitized solar cells. However, these sensitizers are exclusively based on a 3,7-substitution pattern. Herein, we have synthesized and characterized novel 3,8-substituted phenothiazine dyes in order to evaluate the effect of auxiliary donor groups on the performance of this new dye class. The power conversion efficiency increased by 7%–10% upon insertion of an auxiliary donor in position 8 of the phenothiazine, but the structure of the auxiliary donor (phenyl, naphthyl, pyrene) had a low impact when electrodes were stained with chenodeoxycholic acid (CDCA) additive. In the absence of CDCA, the highest power conversion efficiency was seen for the phenyl-based sensitizer attributed to a higher quality dye-monolayer. By comparing the novel dyes to their previously reported 3,7- analogues, only subtle differences were seen in photophysical, electrochemical, and performance measurements. The most notable difference between the two geometries is a lowering of the oxidation potentials of the 3,8-dyes by 40–50 mV compared to the 3,7-analogues. The best auxiliary donor for the 3,8-phenothiazine dyes was found to be pyrenyl, with the best device delivering a power conversion efficiency of 6.23% (99 mW cm−2, 10 eq. CDCA, JSC = 10.20 mA cm−2, VOC = 791 mV, and FF = 0.765).
Collapse
|
30
|
Morak-Młodawska B, Pluta K, Latocha M, Jeleń M, Kuśmierz D, Suwińska K, Shkurenko A, Czuba Z, Jurzak M. 10 H-1,9-diazaphenothiazine and its 10-derivatives: synthesis, characterisation and biological evaluation as potential anticancer agents. J Enzyme Inhib Med Chem 2019; 34:1298-1306. [PMID: 31307242 PMCID: PMC6691808 DOI: 10.1080/14756366.2019.1639695] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 06/21/2019] [Accepted: 06/26/2019] [Indexed: 02/07/2023] Open
Abstract
10H-1,9-diazaphenothiazine was obtained in the sulphurisation reaction of diphenylamine with elemental sulphur and transformed into new 10-substituted derivatives, containing alkyl and dialkylaminoalkyl groups at the thiazine nitrogen atom. The 1,9-diazaphenothiazine ring system was identified with advanced 1H and 13C NMR techniques (COSY, NOESY, HSQC and HMBC) and confirmed by X-ray diffraction analysis of the methyl derivative. The compounds exhibited significant anticancer activities against the human glioblastoma SNB-19, melanoma C-32 and breast cancer MDA-MB-231 cell lines. The most active 1,9-diazaphenothiazines were the derivatives with the propynyl and N, N-diethylaminoethyl groups being more potent than cisplatin. For those two compounds, the expression of H3, TP53, CDKN1A, BCL-2 and BAX genes was detected by the RT-QPCR method. The proteome profiling study showed the most probable compound action on SNB-19 cells through the intrinsic mitochondrial pathway of apoptosis. The 1,9-diazaphenotiazine system seems to be more potent than known isomeric ones (1,6-diaza-, 1,8-diaza-, 2,7-diaza- and 3,6-diazaphenothiazine).
Collapse
Affiliation(s)
- Beata Morak-Młodawska
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Sosnowiec, Poland
| | - Krystian Pluta
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Sosnowiec, Poland
| | - Małgorzata Latocha
- Department of Cell Biology, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Sosnowiec, Poland
| | - Małgorzata Jeleń
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Sosnowiec, Poland
| | - Dariusz Kuśmierz
- Department of Cell Biology, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Sosnowiec, Poland
| | - Kinga Suwińska
- Faculty of Mathematics and Natural Sciences, Cardinal Stefan Wyszyński University, Warszawa, Poland
- A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kazan, Russia
| | - Aleksander Shkurenko
- Division of Physical Functional Materials Design, Discovery & Development Research Group (FMD3), Sciences and Engineering Advanced Membranes & Porous Materials (AMPM), King Abdullah University of Science and Technology (KAU ST), Thuwal, Kingdom of Saudi Arabia
| | - Zenon Czuba
- Department of Microbiology and Immunology, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Magdalena Jurzak
- Department of Cell Biology, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Sosnowiec, Poland
| |
Collapse
|
31
|
Morak-Młodawska B, Pluta K, Latocha M, Jeleń M, Kuśmierz D. Design, Synthesis, and Structural Characterization of Novel Diazaphenothiazines with 1,2,3-Triazole Substituents as Promising Antiproliferative Agents. Molecules 2019; 24:molecules24234388. [PMID: 31801304 PMCID: PMC6930555 DOI: 10.3390/molecules24234388] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/19/2019] [Accepted: 11/27/2019] [Indexed: 01/07/2023] Open
Abstract
A series of novel 1,2,3-triazole-diazphenothiazine hybrids was designed, synthesized, and evaluated for anticancer activity against four selected human tumor cell lines (SNB-19, Caco-2, A549, and MDA-MB231). The majority of the synthesized compounds exhibited significant potent activity against the investigated cell lines. Among them, compounds 1d and 4c showed excellent broad spectrum anticancer activity, with IC50 values ranging from 0.25 to 4.66 μM and 0.25 to 6.25 μM, respectively. The most promising compound 1d, possessing low cytotoxicity against normal human fibroblasts NHFF, was used for gene expression analysis using reverse transcription–quantitative real-time PCR (RT–qPCR). The expression of H3, TP53, CDKN1A, BCL-2, and BAX genes revealed that these compounds inhibited the proliferation in all cells (H3) and activated mitochondrial events of apoptosis (BAX/BCL-2).
Collapse
Affiliation(s)
- Beata Morak-Młodawska
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland; (K.P.); (M.J.)
- Correspondence: ; Tel.: +48-32-364-16-04
| | - Krystian Pluta
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland; (K.P.); (M.J.)
| | - Małgorzata Latocha
- Department of Cell Biology, Faculty of Pharmaceutical Sciences, The Medical University of Silesia, Jedności 8, 41-200 Sosnowiec, Poland; (M.L.); (D.K.)
| | - Małgorzata Jeleń
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland; (K.P.); (M.J.)
| | - Dariusz Kuśmierz
- Department of Cell Biology, Faculty of Pharmaceutical Sciences, The Medical University of Silesia, Jedności 8, 41-200 Sosnowiec, Poland; (M.L.); (D.K.)
| |
Collapse
|
32
|
Ushakova N, Dontsov A, Sakina N, Bastrakov A, Ostrovsky M. Antioxidative Properties of Melanins and Ommochromes from Black Soldier Fly Hermetia illucens. Biomolecules 2019; 9:E408. [PMID: 31450873 PMCID: PMC6770681 DOI: 10.3390/biom9090408] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/18/2019] [Accepted: 08/20/2019] [Indexed: 12/23/2022] Open
Abstract
A comparative study of melanin and ommochrome-containing samples, isolated from the black soldier fly (BSF) by enzymatic hydrolysis, alkaline and acid alcohol extraction or by acid hydrolysis, was carried out. Melanin was isolated both as a melanin-chitin complex and as a water-soluble melanin. Acid hydrolysis followed by delipidization yielded a more concentrated melanin sample, the electron spin resonance (ESR) signal of which was 2.6 × 1018 spin/g. The ommochromes were extracted from the BSF eyes with acid methanol. The antiradical activity of BSF melanins and ommochromes was determined by the method of quenching of luminol chemiluminescence. It has been shown that delipidization of water-soluble melanin increases its antioxidant properties. A comparison of the antioxidant activity of BSF melanins and ommochromes in relation to photoinduced lipid peroxidation was carried out. The ESR characteristics of native and oxidized melanins and ommochromes were studied. It is assumed that H. illucens adult flies can be a useful source of natural pigments with antioxidant properties.
Collapse
Affiliation(s)
- Nina Ushakova
- A.N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, 119071 Moscow, Russia.
| | - Alexander Dontsov
- N.M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia
| | - Natalia Sakina
- N.M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia
| | - Alexander Bastrakov
- A.N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, 119071 Moscow, Russia
| | - Mikhail Ostrovsky
- N.M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia
| |
Collapse
|
33
|
Deris-Abdolahpour F, Abdolalipouran-Sadegh L, Dastmalchi S, Hamzeh-Mivehroud M, Zarei O, Dehgan G, Rashidi MR. Effects of Phenothiazines on Aldehyde Oxidase Activity Towards Aldehydes and N-Heterocycles: an In Vitro and In Silico Study. Eur J Drug Metab Pharmacokinet 2019; 44:275-286. [PMID: 30382490 DOI: 10.1007/s13318-018-0514-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 11/27/2022]
Abstract
BACKGROUND Aldehyde oxidase (AOX) is an important molybdenum-containing enzyme with high similarity with xanthine oxidase (XO). AOX involved in the metabolism of a large array of aldehydes and N-heterocyclic compounds and its activity is highly substrate-dependent. OBJECTIVES The aim of this work was to study the effect of five important phenothiazine drugs on AOX activity using benzaldehyde and phenanthridine as aldehyde and N-heterocyclic substrates, respectively. METHODS The effect of trifluperazine, chlorpromazine, perphenazine, thioridazine and promethazine on rat liver AOX was measured spectrophotometrically. To predict the mode of interactions between the studied compounds and AOX, a combination of homology modeling and a molecular docking study was performed. RESULTS All phenothiazines could inhibit AOX activity measured either by phenanthridine or benzaldehyde with almost no effect on XO activity. In the case of benzaldehyde oxidation, the lowest and highest half-maximal inhibitory concentration (IC50) values were obtained for promethazine (IC50 = 0.9 µM), and trifluoperazine (IC50 = 3.9 µM), respectively; whereas perphenazine (IC50 = 4.3 µM), and trifluoperazine (IC50 = 49.6 µM) showed the strongest and weakest inhibitory activity against AOX-catalyzed phenanthridine oxidation, respectively. The in silico findings revealed that the binding site of thioridazine is near the dimer interference, and that hydrophobic interactions are of great importance in all the tested phenothiazines. CONCLUSION The five studied phenothiazine drugs showed dual inhibitory effects on AOX activity towards aldehydes and N-heterocycles as two major classes of enzyme substrates. Most of the interactions between the phenothiazine-related drugs and AOX in the binding pocket showed a hydrophobic nature.
Collapse
Affiliation(s)
| | | | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Hamzeh-Mivehroud
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Zarei
- Neurosciences Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Gholamreza Dehgan
- Department of Zoology, Faculty of Natural Science, University of Tabriz, Tabriz, Iran
| | - Mohammad-Reza Rashidi
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, 51664-14766, Iran.
| |
Collapse
|
34
|
Cieślik-Boczula K. Effect of phenothiazine compounds on the secondary structure and fibrillogenesis of poly-l-lysine. Spectrochim Acta A Mol Biomol Spectrosc 2019; 216:15-24. [PMID: 30870786 DOI: 10.1016/j.saa.2019.03.011] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
Phenothiazine molecules are effective and commonly used antipsychotic drugs, especially in the treatment of schizophrenia. However, they produce strong extrapyramidal side-effects manifested by drug-induced parkinsonism. Because Parkinson's disease as a neurodegenerative illness is associated with the formation of amyloid fibrils in neuronal cells, it is postulated that the development of phenothiazine-induced parkinsonism may be related to the phenothiazine-induced formation of fibrillar aggregates. The effect of phenothiazine compounds (fluphenazine (FPh), chlorpromazine (ChP) and propionylpromazine (PP)) on the fibrillogenesis of poly-l-lysine (PLL) was studied using Fourier-transform infrared (FTIR) spectroscopy supported by principal component analysis (PCA), vibrational circular dichroism (VCD), transmission electron microscopy (TEM) and Congo red binding assay. The fibrillogenesis of PLL is accompanied by fibril formation with charged or uncharged polypeptides with PPII (polyproline-like extended helix), α-helix or β-sheet conformations. All of the phenothiazine molecules investigated effectively reduced the temperature required to induce the formation of β-sheet-rich fibrils from α-helix-rich fibrils of PLL.
Collapse
|
35
|
Środa-Pomianek K, Michalak K, Palko-Łabuz A, Uryga A, Świątek P, Majkowski M, Wesołowska O. The Combined Use of Phenothiazines and Statins Strongly Affects Doxorubicin-Resistance, Apoptosis, and Cox-2 Activity in Colon Cancer Cells. Int J Mol Sci 2019; 20:ijms20040955. [PMID: 30813251 PMCID: PMC6412564 DOI: 10.3390/ijms20040955] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/14/2019] [Accepted: 02/19/2019] [Indexed: 01/28/2023] Open
Abstract
Since none of the multidrug resistance (MDR) modulators tested so far found their way into clinic, a novel approach to overcome the MDR of cancer cells has been proposed. The combined use of two MDR modulators of dissimilar mechanisms of action was suggested to benefit from the synergy between them. The effect of three phenothiazine derivatives that were used as single agents and in combination with simvastatin on cell growth, apoptosis induction, activity, and expression of cyclooxygenase-2 (COX-2) in doxorubicin-resistant colon cancer cells (LoVo/Dx) was investigated. Treatment of LoVo/Dx cells by phenothiazine derivatives combined with simvastatin resulted in an increase of doxorubicin cytotoxicity and its intracellular accumulation as compared to the treatment with phenothiazine derivatives that were used as single agents. Similarly, LoVo/Dx cells treated with two-component mixture of modulators showed the reduced expression of ABCB1 (P-glycoprotein) transporter and COX-2 enzyme, both on mRNA and protein level. Reduced expression of anti-apoptotic Bcl-2 protein and increased expression of pro-apoptotic Bax were also detected. Additionally, COX-2 activity was diminished, and caspase-3 activity was increased to a higher extent by phenothiazine derivative:simvastatin mixtures than by phenothiazine derivatives themselves. Therefore, the introduction of simvastatin strengthened the anti-MDR, anti-inflammatory, and pro-apoptotic properties of phenothiazines in LoVo/Dx cells.
Collapse
Affiliation(s)
- Kamila Środa-Pomianek
- Department of Biophysics, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland.
| | - Krystyna Michalak
- Department of Biophysics, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland.
| | - Anna Palko-Łabuz
- Department of Biophysics, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland.
| | - Anna Uryga
- Department of Biophysics, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland.
| | - Piotr Świątek
- Department of Chemistry of Drugs, Wroclaw Medical University, ul. Borowska 211, 50-556 Wroclaw, Poland.
| | - Michał Majkowski
- Confocal Microscopy Laboratory, Polish Center for Technology Development, ul. Stabłowicka 147, 54-066 Wrocław, Poland.
| | - Olga Wesołowska
- Department of Biophysics, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland.
| |
Collapse
|
36
|
Morak-Młodawska B, Pluta K, Latocha M, Jeleń M, Kuśmierz D. Synthesis, Anticancer Activity, and Apoptosis Induction of Novel 3,6-Diazaphenothiazines. Molecules 2019; 24:molecules24020267. [PMID: 30642021 PMCID: PMC6359424 DOI: 10.3390/molecules24020267] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/09/2019] [Accepted: 01/09/2019] [Indexed: 02/03/2023] Open
Abstract
New 10-substituted derivatives of 3,6-diazaphenothiazine, containing the triple bond linker terminated with tertiary cyclic and acyclic amine groups, were synthesized and screened for their anticancer action. The compounds exhibited varied anticancer activities against human glioblastoma SNB-19, melanoma C-32, and breast cancer MDA-MB231 cell lines, depending on the nature of the substituents. The most active 3,6-diazaphenothiazine, 4, was the derivative with the N,N-diethylamino-2-butynyl substituent against glioblastoma SNB-19, and was ten times more potent than cisplatin. For this compound, the expression of H3, TP53, CDKN1A, BCL-2, and BAX genes was detected by the RT-qPCR method. The gene expression ratio BAX/BCL-2 indicated the induction of mitochondrial apoptosis in cancer cell lines. The transformation of the propynyl substituent into amino-2-butynyl can be a method applicable to the search for more anticancer-active azaphenothiazines.
Collapse
Affiliation(s)
- Beata Morak-Młodawska
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Krystian Pluta
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Małgorzata Latocha
- Department of Cell Biology, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Jedności 8, 41-200 Sosnowiec, Poland.
| | - Małgorzata Jeleń
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Dariusz Kuśmierz
- Department of Cell Biology, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Jedności 8, 41-200 Sosnowiec, Poland.
| |
Collapse
|
37
|
Rosado T, Oppolzer D, Cruz B, Barroso M, Varela S, Oliveira V, Leitão C, Gallardo E. Development and validation of a gas chromatography/tandem mass spectrometry method for simultaneous quantitation of several antipsychotics in human plasma and oral fluid. Rapid Commun Mass Spectrom 2018; 32:2081-2095. [PMID: 29448305 DOI: 10.1002/rcm.8087] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/17/2018] [Accepted: 02/06/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE Antipsychotic drugs are prescription medications used to treat psychotic disorders, such as schizophrenia, schizoaffective disorder, or psychotic depression. With several antipsychotic drugs currently available all over the world, this class of drugs has quickly gained importance in both the clinical and forensic context. This work describes the development and validation of a methodology for the determination of seven antipsychotic drugs in plasma and oral fluid samples. METHODS The antipsychotic drugs (chlorpromazine, clozapine, haloperidol, olanzapine, quetiapine, cyamemazine and, levomepromazine) were isolated from 0.2 mL of oral fluid and 0.5 mL of plasma using solid-phase extraction (SPE) following analysis by gas chromatography/tandem mass spectrometry (GC/MS/MS). The method was validated according to the international guidelines in terms of selectivity, linearity, accuracy, precision and recovery. RESULTS The procedure was linear within 2-600 ng/mL (plasma) and 2-400 ng/mL (oral fluid), the intervals varying according to the compound; a mean R2 value of 0.99 was obtained and the calibrator's accuracy (mean relative error) was within a ±15 % interval for all concentrations. The limits of detection ranged from 1 to 10 ng/mL. Within- and between-run precision and accuracy were acceptable for all studied compounds. The extraction efficiency of the process ranged from 79% to 95%. The method was applied to authentic specimens. CONCLUSIONS The described method was proven selective and sensitive for the determination of antipsychotics in low sample volumes using SPE and GC/MS/MS. This method was considered suitable not only for routine analysis of patients undergoing antipsychotic treatment (to evaluate compliance), but also in forensic scenarios where the studied compounds may be involved. To the best of our knowledge, this is the first work that reports the determination of antipsychotic drugs in oral fluid using MS/MS.
Collapse
Affiliation(s)
- Tiago Rosado
- Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior (CICS-UBI), Covilhã, Portugal
- Laboratório de Fármaco-Toxicologia-UBIMedical, Universidade da Beira Interior, Covilhã, Portugal
| | - David Oppolzer
- Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior (CICS-UBI), Covilhã, Portugal
| | - Belinda Cruz
- Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior (CICS-UBI), Covilhã, Portugal
| | - Mário Barroso
- Serviço de Química e Toxicologia Forenses, Instituto Nacional de Medicina Legal e Ciências Forenses, Delegação do Sul, Lisboa, Portugal
| | - Samira Varela
- Centro Hospitalar Cova da Beira, E.P.E, Departamento de Psiquiatria e Saúde Mental, Covilhã, Portugal
| | - Victor Oliveira
- Centro Hospitalar Cova da Beira, E.P.E, Departamento de Psiquiatria e Saúde Mental, Covilhã, Portugal
| | - Carlos Leitão
- Centro Hospitalar Cova da Beira, E.P.E, Departamento de Psiquiatria e Saúde Mental, Covilhã, Portugal
| | - Eugenia Gallardo
- Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior (CICS-UBI), Covilhã, Portugal
- Laboratório de Fármaco-Toxicologia-UBIMedical, Universidade da Beira Interior, Covilhã, Portugal
| |
Collapse
|
38
|
Strzadala L, Fiedorowicz A, Wysokinska E, Ziolo E, Grudzień M, Jelen M, Pluta K, Morak-Mlodawska B, Zimecki M, Kalas W. An Anti-Inflammatory Azaphenothiazine Inhibits Interferon β Expression and CXCL10 Production in KERTr Cells. Molecules 2018; 23:molecules23102443. [PMID: 30250011 PMCID: PMC6222831 DOI: 10.3390/molecules23102443] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 09/21/2018] [Accepted: 09/21/2018] [Indexed: 01/03/2023] Open
Abstract
An azaphenothiazine derivative, 6-chloroethylureidoethyldiquino[3,2-b;2′,3′-e][1,4]thiazine (DQT), has recently been shown to exhibit immunosuppressive activities in mouse models. It also inhibited the expression of CXCL10 at the protein level, at non-toxic concentrations, in the culture of KERTr cells treated with double-stranded RNA, poly(I:C). In this report, we demonstrated that DQT inhibits the transcription of the CXCL10 gene. Although CXCL10 is an IFNγ-inducible protein, we found that the CXCL10 protein was induced without the detectable release of IFNγ or IκB degradation. Hence, we concluded that IFNγ or NFκB was not involved in the regulation of the CXCL10 gene in KERTr cells transfected with poly(I:C), nor in the inhibitory activity of DQT. On the other hand, we found that IFNβ was induced under the same conditions and that its expression was inhibited by DQT. Kinetic analysis showed that an increase in IFNβ concentrations occurred 4–8 h after poly(I:C) treatment, while the concentration of CXCL10 was undetectable at that time and started to increase later, when IFNβ reached high levels. Therefore, DQT may be regarded as a new promising inhibitor of IFNβ expression and IFNβ-dependent downstream genes and proteins, e.g., CXCL10 chemokine, which is implicated in the pathogenesis of autoimmune diseases.
Collapse
Affiliation(s)
- Leon Strzadala
- Institute of Immunology and Experimental Therapy, Weigla 12, 53-114 Wroclaw, Poland.
| | - Anna Fiedorowicz
- Institute of Immunology and Experimental Therapy, Weigla 12, 53-114 Wroclaw, Poland.
| | - Edyta Wysokinska
- Institute of Immunology and Experimental Therapy, Weigla 12, 53-114 Wroclaw, Poland.
| | - Ewa Ziolo
- Institute of Immunology and Experimental Therapy, Weigla 12, 53-114 Wroclaw, Poland.
| | - Małgorzata Grudzień
- Institute of Immunology and Experimental Therapy, Weigla 12, 53-114 Wroclaw, Poland.
| | - Malgorzata Jelen
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Krystian Pluta
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Beata Morak-Mlodawska
- Department of Organic Chemistry, School of Pharmacy with the Division of Laboratory Medicine, The Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Michal Zimecki
- Institute of Immunology and Experimental Therapy, Weigla 12, 53-114 Wroclaw, Poland.
| | - Wojciech Kalas
- Institute of Immunology and Experimental Therapy, Weigla 12, 53-114 Wroclaw, Poland.
| |
Collapse
|
39
|
Wu Q, Braveenth R, Zhang HQ, Bae IJ, Kim M, Chai KY. Oxadiazole-Based Highly Efficient Bipolar Fluorescent Emitters for Organic Light-Emitting Diodes. Molecules 2018; 23:E843. [PMID: 29642430 PMCID: PMC6017916 DOI: 10.3390/molecules23040843] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 03/30/2018] [Accepted: 04/05/2018] [Indexed: 11/18/2022] Open
Abstract
In this study, a series of bipolar fluorescence emitters named 2DPAc-OXD, DPAc-OXD, 2PTZ-OXD and PTZ-OXD were designed and synthesized with excellent yields. The characterization of materials was investigated by using nuclear magnetic resonance (NMR) (¹H, 13C), mass spectrometry and thermogravimetric analysis (TGA). To investigate device efficiencies, two different OLED devices (Device 1, Device 2) were fabricated with two different host materials (Bepp₂, DPEPO). The Device 2 with 2PTZ-OXD as fluorescent emitter exhibited excellent power and current efficiencies of 6.88 Lm/W and 10.10 cd/A, respectively. The external quantum efficiency of 2PTZ-OXD was around 3.99% for Device 2. The overall device properties of phenothiazine donor were better than acridine derivatives.
Collapse
Affiliation(s)
- Qiong Wu
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City, Chonbuk 570-749, Korea.
- Department of Chemistry, Hebei Normal University for Nationalities, Chengde 067000, China.
| | - Ramanaskanda Braveenth
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City, Chonbuk 570-749, Korea.
| | - Heng Qiang Zhang
- Department of Chemistry, Hebei Normal University for Nationalities, Chengde 067000, China.
| | - Il-Ji Bae
- Nano-Convergence Research Center, Korea Electronics Technology Institute, Jeonju 54853, Korea.
| | - Miyoung Kim
- Nano-Convergence Research Center, Korea Electronics Technology Institute, Jeonju 54853, Korea.
| | - Kyu Yun Chai
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City, Chonbuk 570-749, Korea.
| |
Collapse
|
40
|
Tuite EM, Nordén B. Linear and circular dichroism characterization of thionine binding mode with DNA polynucleotides. Spectrochim Acta A Mol Biomol Spectrosc 2018; 189:86-92. [PMID: 28800432 DOI: 10.1016/j.saa.2017.07.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/25/2017] [Accepted: 07/30/2017] [Indexed: 06/07/2023]
Abstract
The binding mode of thionine (3,7-diamino-5-phenothiazinium) with alternating and non-alternating DNA polynucleotides at low binding ratios was conclusively determined using linear and circular dichroism spectroscopies. The binding to [poly(dG-dC)]2 and poly(dG)·poly(dC) was purely intercalative and was insensitive to ionic strength. Intercalative binding to [poly(dA-dT)]2 is observed at low ionic strength, but a shift of some dye to an non-intercalative mode is observed as the background salt concentration increases. With poly(dA)·poly(dT), intercalative binding is unfavourable, although some dye molecules may intercalate at low ionic strength, and groove binding is strongly promoted with increasing concentration of background salt. However, stacking with bases is observed with single-stranded poly(dA) and with triplex poly(dT)⁎poly(dA)·poly(dT) which suggests that the unusual structure of poly(dA)·poly(dT) precludes intercalation. Thionine behaves similarly to the related dye methylene blue, and small differences may be attributed either to the ability of thionine to form H-bonds that stabilize intercalation or to its improved stacking interactions in the basepair pocket on steric grounds.
Collapse
Affiliation(s)
- Eimer Mary Tuite
- School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
| | - Bengt Nordén
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Gothenburg S-41296, Sweden
| |
Collapse
|
41
|
Farzin L, Shamsipur M. Separation and preconcentration of riboflavin from human plasma using polythionine coated magnetite/hydroxyapatite nanocomposite prior to analysis by surfactant-enhanced fluorimetry. Spectrochim Acta A Mol Biomol Spectrosc 2017; 184:109-118. [PMID: 28494372 DOI: 10.1016/j.saa.2017.04.087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 04/19/2017] [Accepted: 04/30/2017] [Indexed: 06/07/2023]
Abstract
The exploration of novel adsorption properties of conductive polymers based on hybridization with biocompatible nanomaterials receives an increasing interest. In this regard, hydroxyapatite (HA) bioceramic is of critical importance mainly owing to its facile synthesis, high surface area, economic and low toxicity in biological environments. In this work, we first prepared and characterized a magnetite/hydroxyapatite (Fe3O4/HA) nanocomposite using the bio-waste chicken eggshell via an attractive green way that involved low cost and irrespective of toxicity. Then, polythionine as a novel class of conductive polymers was in situ coated on the synthesized magnetic bioceramic for the separation and preconcentration of riboflavin (vitamin B2) in human plasma before its fluorimetric determination. Considering the putative role of riboflavin in protecting against cancer and cardiovascular diseases, it is essential to evaluate this vitamin in biological fluids. The described method possesses a linear range of 0.75-262.5μgL-1 (R2=0.9985) and a detection limit of 0.20μgL-1 (signal-to-noise ratio of 3). The relative standard deviations (RSDs) for single-sorbent repeatability and sorbent-to-sorbent reproducibility were less than 4.0% and 7.6% (n=5), respectively. The respective enrichment factor and extraction recovery of the method found to be 35.7 and 98.4%. The analytical performance of method for riboflavin was characterized by good consistency of the results with those obtained by the enzyme-linked immunosorbent assay (ELISA) conventional method (p-value of <0.05). The optimized protocol intended for control determinations of riboflavin in human subjects and is addressed to clinical laboratories.
Collapse
Affiliation(s)
- Leila Farzin
- Radiation Application Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Iran.
| | - Mojtaba Shamsipur
- Department of Chemistry, Razi University, P.O. Box 67149-67346, Kermanshah, Iran
| |
Collapse
|
42
|
Gollmer A, Felgentraeger A, Maisch T, Flors C. Real-time imaging of photodynamic action in bacteria. J Biophotonics 2017; 10:264-270. [PMID: 26790971 DOI: 10.1002/jbio.201500259] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 01/04/2016] [Accepted: 01/05/2016] [Indexed: 06/05/2023]
Abstract
Fluorescence imaging studies of the processes leading to photodynamic inactivation of bacteria have been limited due to the small size of microorganisms as well as by the faint fluorescence of most photosensitizers. A versatile method based on highly-sensitive fluorescence microscopy is presented which allows to study, in real time, the incorporation of photosensitizers inside S. aureus upon photodynamic action. The method takes advantage of the fluorescence enhancement of phenothiazine and porphyrin photosensitizers upon entering the bacterial cytosol after the cell wall has been compromised. In combination with typical assays, such as the addition of specific enhancers of reactive oxygen species, it is possible to extract mechanistic information about the pathway of photodynamic damage at the single-cell level. Imaging experiments in deuterated buffer strongly support a Type-I mechanism for methylene blue and a very minor role of singlet oxygen.
Collapse
Affiliation(s)
- Anita Gollmer
- Department of Dermatology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - Ariane Felgentraeger
- Department of Dermatology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - Tim Maisch
- Department of Dermatology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - Cristina Flors
- Madrid Institute for Advanced Studies in Nanoscience (IMDEA Nanociencia) and Nanobiotechnology Unit Associated to the National Center for Biotechnology (CSIC), 28049, Madrid, Spain
| |
Collapse
|
43
|
Dondi R, Yaghini E, Tewari KM, Wang L, Giuntini F, Loizidou M, MacRobert AJ, Eggleston IM. Flexible synthesis of cationic peptide-porphyrin derivatives for light-triggered drug delivery and photodynamic therapy. Org Biomol Chem 2016; 14:11488-11501. [PMID: 27886311 PMCID: PMC5166568 DOI: 10.1039/c6ob02135b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/14/2016] [Indexed: 01/04/2023]
Abstract
Efficient syntheses of cell-penetrating peptide-porphyrin conjugates are described using a variety of bioconjugation chemistries. This provides a flexible means to convert essentially hydrophobic tetrapyrolle photosensitisers into amphiphilic derivatives which are well-suited for use in light-triggered drug delivery by photochemical internalisation (PCI) and targeted photodynamic therapy (PDT).
Collapse
Affiliation(s)
- R Dondi
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, UK.
| | - E Yaghini
- UCL Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London NW3 2PF, UK
| | - K M Tewari
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, UK.
| | - L Wang
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, UK. and School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - F Giuntini
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, UK.
| | - M Loizidou
- UCL Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London NW3 2PF, UK
| | - A J MacRobert
- UCL Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London NW3 2PF, UK
| | - I M Eggleston
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, UK.
| |
Collapse
|
44
|
Toytziaridis A, Dicko C. Fabrication and Optimization of Stable, Optically Transparent, and Reusable pH-Responsive Silk Membranes. Int J Mol Sci 2016; 17:E1897. [PMID: 27854303 PMCID: PMC5133896 DOI: 10.3390/ijms17111897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/25/2016] [Accepted: 10/26/2016] [Indexed: 11/21/2022] Open
Abstract
The fabrication of silk-based membranes that are stable, optically transparent and reusable is yet to be achieved. To address this bottleneck we have developed a method to produce transparent chromogenic silk patches that are optically responsive to pH. The patches were produced by blending regenerated silk fibroin (RSF), Laponite RD (nano clay) and the organic dyes neutral red and Thionine acetate. The Laponite RD played a central role in the patch mechanical integrity and prevention of dye leaching. The process was optimized using a factorial design to maximize the patch response to pH by UV absorbance and fluorescence emission. New patches of the optimized protocol, made from solutions containing 125 μM neutral red or 250 μM of Thionine and 15 mg/mL silk, were further tested for operational stability over several cycles of pH altering. Stability, performance, and reusability were achieved over the tested cycles. The approach could be extended to other reporting molecules or enzymes able to bind to Laponite.
Collapse
Affiliation(s)
- Andreas Toytziaridis
- Pure and Applied Biochemistry, Chemical Center, Lund University, 22241 Lund, Sweden.
| | - Cedric Dicko
- Pure and Applied Biochemistry, Chemical Center, Lund University, 22241 Lund, Sweden.
| |
Collapse
|
45
|
Fan D, Li N, Ma H, Li Y, Hu L, Du B, Wei Q. Electrochemical immunosensor for detection of prostate specific antigen based on an acid cleavable linker into MSN-based controlled release system. Biosens Bioelectron 2016; 85:580-586. [PMID: 27236723 DOI: 10.1016/j.bios.2016.05.063] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 05/16/2016] [Accepted: 05/20/2016] [Indexed: 11/17/2022]
Abstract
A mesoporous silica nanoparticle (MSN)-based controlled release system with acid cleavable linkage was developed to fabricate an electrochemical immunosensor for the quantitative detection of the prostate-specific antigen (PSA). 3,9-Bis(3-aminopropyl)-2,4,8,10-tetraoxaspiro[5.5]undecane functionalized mesoporous silica nanoparticles (MSN-Acetal) were used to immobilize the electron mediator thionine (Th). The encapsulation of Th molecules was achieved by capping the pores of MSN-Acetal with carboxylic acid modified Au nanoparticles (defined as MSN-Th-Au). Under the acidic conditions, the capped Au nanoparticles were removed from MSN-Th-Au through the hydrolysis of the acid-labile acetal linker, resulting in the release of encapsulated Th. In this work, the pH-responsive cargo release system was firstly used as the label of secondary anti-PSA for developing an electrochemical immunosensor, and amination Fe3O4 was used as the sensing matrix for immobilizing primary anti-PSA on magnetic carbon electrode surfaces. The specific recognition of PSA resulted in the attachment of MSN-Th-Au-secondary anti-PSA (MSN-Th-Au-Ab2) onto the electrode surfaces. Subsequently, the released Th was detected by differential pulse voltammetry under the acidic conditions. The developed cargo release system provided an innovative and reliable method for the detection of PSA because the response signal was correlated with the concentration of PSA. Under the optimal conditions, the electrochemical immunosensor exhibited a wide linear range of 0.001-5.0ng/mL with a low detection limit of 0.31pg/mL. Moreover, the developed immunosensor showed superior reproducibility and long-term stability, which has promising applications in bioassay and biosensing.
Collapse
Affiliation(s)
- Dawei Fan
- School of Resources and Environmental Sciences, University of Jinan, Jinan 250022, PR China
| | - Na Li
- School of Resources and Environmental Sciences, University of Jinan, Jinan 250022, PR China
| | - Hongmin Ma
- School of Resources and Environmental Sciences, University of Jinan, Jinan 250022, PR China
| | - Yan Li
- School of Resources and Environmental Sciences, University of Jinan, Jinan 250022, PR China
| | - Lihua Hu
- School of Resources and Environmental Sciences, University of Jinan, Jinan 250022, PR China
| | - Bin Du
- School of Resources and Environmental Sciences, University of Jinan, Jinan 250022, PR China.
| | - Qin Wei
- School of Resources and Environmental Sciences, University of Jinan, Jinan 250022, PR China
| |
Collapse
|
46
|
Cecconi B, Manfredi N, Ruffo R, Montini T, Romero-Ocaña I, Fornasiero P, Abbotto A. Tuning Thiophene-Based Phenothiazines for Stable Photocatalytic Hydrogen Production. ChemSusChem 2015; 8:4216-4228. [PMID: 26610281 DOI: 10.1002/cssc.201501040] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 10/04/2015] [Indexed: 06/05/2023]
Abstract
Dibranched donor-(π-acceptor)2 dyes, where phenothiazine is the donor core, cyanoacrylic acid is the acceptor/anchoring group, and π is represented by mono- and poly-cyclic simple and fused thiophene derivatives, were tested as photosensitizers in the photocatalytic production of H2 , in combination with a Pt/TiO2 catalyst. The optical and electrochemical properties of the dyes were investigated, showing that careful design of the thiophene-based π spacer afforded enhanced optical properties. In the H2 production over 20 h, the new thiophene-based sensitizers revealed improved stability after longer irradiation times and enhanced performances, in terms of H2 production rates and light-to-fuel efficiencies, after an initial activation period, which were for the first time associated with enhanced stability under photocatalytic production of H2 and the absence of critical dye degradation.
Collapse
Affiliation(s)
- Bianca Cecconi
- Department of Materials Science, Solar Energy Research Center MIB-SOLAR, INSTM Milano-Bicocca Research Unit, University of Milano-Bicocca, Via Cozzi 55, 20125, Milano, Italy
| | - Norberto Manfredi
- Department of Materials Science, Solar Energy Research Center MIB-SOLAR, INSTM Milano-Bicocca Research Unit, University of Milano-Bicocca, Via Cozzi 55, 20125, Milano, Italy
| | - Riccardo Ruffo
- Department of Materials Science, Solar Energy Research Center MIB-SOLAR, INSTM Milano-Bicocca Research Unit, University of Milano-Bicocca, Via Cozzi 55, 20125, Milano, Italy
| | - Tiziano Montini
- Department of Chemical and Pharmaceutical Sciences, ICCOM-CNR Trieste Research Unit, INSTM Trieste Research Unit, University of Trieste, Via L.Giorgieri 1, 34127, Trieste, Italy
| | - Ismael Romero-Ocaña
- Department of Chemical and Pharmaceutical Sciences, ICCOM-CNR Trieste Research Unit, INSTM Trieste Research Unit, University of Trieste, Via L.Giorgieri 1, 34127, Trieste, Italy
| | - Paolo Fornasiero
- Department of Chemical and Pharmaceutical Sciences, ICCOM-CNR Trieste Research Unit, INSTM Trieste Research Unit, University of Trieste, Via L.Giorgieri 1, 34127, Trieste, Italy.
| | - Alessandro Abbotto
- Department of Materials Science, Solar Energy Research Center MIB-SOLAR, INSTM Milano-Bicocca Research Unit, University of Milano-Bicocca, Via Cozzi 55, 20125, Milano, Italy.
| |
Collapse
|
47
|
Su S, Zou M, Zhao H, Yuan C, Xu Y, Zhang C, Wang L, Fan C, Wang L. Shape-controlled gold nanoparticles supported on MoS₂ nanosheets: synergistic effect of thionine and MoS₂ and their application for electrochemical label-free immunosensing. Nanoscale 2015; 7:19129-35. [PMID: 26524543 DOI: 10.1039/c5nr05614d] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Herein, a facile approach for shape-controlled gold nanoparticle (AuNP) decorated thionine-MoS2 nanocomposites (AuNP-Thi-MoS2) had been reported by using the synergistic effect of MoS2 and Thi. Thi was not only used as an electrochemical indicator, but also as a reducing agent to tune the resulting morphologies of AuNPs. With the ratio of MoS2/Thi decreasing, the shapes of AuNPs changed from spherical, triangle, clover-like to flower-like nanostructures. TEM, XRD and XPS were employed to characterize the formation and chemical composition of AuNP-Thi-MoS2 nanocomposites. On the basis of synthesis, a MoS2-based label-free electrochemical immunosensor had been designed to detect carcino-embryonic antigen (CEA). The proposed immunosensor could detect as low as 0.52 pg mL(-1) CEA with excellent selectivity. Moreover, the expected immunosensor showed high stability and excellent reproducibility, which could detect CEA in human serum with satisfactory results. Therefore, the AuNP-Thi-MoS2 nanocomposites may be considered as a candidate sensing platform for fabrication of simple, label-free and ultrasensitive electrochemical sensors.
Collapse
Affiliation(s)
- Shao Su
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Institute of Advanced Materials (IAM), National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Zasonská B, Čadková M, Kovářová A, Bílková Z, Korecká L, Horák D. Thionine-Modified Poly(glycidyl methacrylate) Nanospheres as Labels of Antibodies for Biosensing Applications. ACS Appl Mater Interfaces 2015; 7:24926-24931. [PMID: 26479119 DOI: 10.1021/acsami.5b08469] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Monodisperse poly(glycidyl methacrylate) (PGMA) nanospheres were obtained by emulsifier-free emulsion polymerization and characterized by physicochemical methods. The effects of various reaction parameters on the particle properties were investigated. The particle size was controlled in the range of 350-420 nm. To introduce carboxyl groups, the PGMA nanospheres were hydrolyzed and oxidized with KMnO4. Subsequently, the enzyme horseradish peroxidase (HRP) and the electron mediator thionine were covalently attached to the PGMA nanospheres to obtain an antibody indicator suitable for enzyme-based electrochemical immunosensors. Combined HRP and thionine binding to the nanospheres had beneficial effects for the labeling efficiency and at the same time prevented the formation of soluble electron mediators.
Collapse
Affiliation(s)
- Beata Zasonská
- Institute of Macromolecular Chemistry AS CR , Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| | - Michaela Čadková
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice , Studentská 573, 532 10 Pardubice, Czech Republic
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice , Studentská 573, 532 10 Pardubice, Czech Republic
| | - Aneta Kovářová
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice , Studentská 573, 532 10 Pardubice, Czech Republic
| | - Zuzana Bílková
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice , Studentská 573, 532 10 Pardubice, Czech Republic
| | - Lucie Korecká
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice , Studentská 573, 532 10 Pardubice, Czech Republic
| | - Daniel Horák
- Institute of Macromolecular Chemistry AS CR , Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| |
Collapse
|
49
|
Antony MP, Moehl T, Wielopolski M, Moser JE, Nair S, Yu YJ, Kim JH, Kay KY, Jung YS, Yoon KB, Grätzel C, Zakeeruddin SM, Grätzel M. Long-Range π-Conjugation in Phenothiazine-containing Donor-Acceptor Dyes for Application in Dye-Sensitized Solar Cells. ChemSusChem 2015; 8:3859-3868. [PMID: 26616683 DOI: 10.1002/cssc.201500931] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 08/24/2015] [Indexed: 06/05/2023]
Abstract
Four organic donor-π-bridge-acceptor dyes containing phenothiazine as a spacer and cyanoacrylic acid as an acceptor were synthesized and tested as sensitizers in dye-sensitized solar cells (DSCs). The influence of iodide- and cobalt-based redox electrolytes on the photovoltaic device performance was investigated. In these new dyes, systematic π-conjugation was extended by inserting one or two phenothiazine moieties and investigated within the context of the resulting photoinduced charge-transfer properties. A detailed investigation, including transient absorption spectroscopy and quantum chemical methods, provided important information on the role of extended π-conjugation on the photophysical properties and photovoltaic device performance. Overall, the results showed that the extension of π-conjugation by one phenothiazine unit resulted in the best device performance owing to reduced recombination rates, whereas extension by two phenothiazine units reduced dye adsorption on TiO2 probably owing to the increase in molecular size. The performance of the dyes in DSCs was found to be a complex interaction between dye structure and size.
Collapse
Affiliation(s)
- Mini P Antony
- Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Amrita lane, Edappally, Cochin-41, 682041, India
| | - Thomas Moehl
- Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland
| | - Mateusz Wielopolski
- Photochemical Dynamics Group, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Jacques-E Moser
- Photochemical Dynamics Group, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Shantikumar Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Amrita lane, Edappally, Cochin-41, 682041, India
| | | | | | - Kwang-Yol Kay
- Solar Sys Co., Ltd., BI Center.
- Department of Molecular Science and Technology, Ajou University, Suwon, 443-749, Korea.
| | - Young-Sam Jung
- Korea Center for Artificial Photosynthesis, Department of Chemistry, Sogang University, Seoul, 121-742, Korea
| | - Kyung Byung Yoon
- Korea Center for Artificial Photosynthesis, Department of Chemistry, Sogang University, Seoul, 121-742, Korea
| | - Carole Grätzel
- Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland
| | - Shaik M Zakeeruddin
- Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland.
| | - Michael Grätzel
- Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland.
| |
Collapse
|
50
|
Bielecka P, Juskowiak B. Fluorescent Sensor for PH Monitoring Based on an i-Motif---Switching Aptamer Containing a Tricyclic Cytosine Analogue (tC). Molecules 2015; 20:18511-25. [PMID: 26473815 PMCID: PMC6332284 DOI: 10.3390/molecules201018511] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 09/24/2015] [Accepted: 10/06/2015] [Indexed: 12/16/2022] Open
Abstract
There are cytosine-rich regions in the genome that bind protons with high specificity. Thus protonated C-rich sequence may undergo folding to tetraplex structures called i-motifs. Therefore, one can regard such specific C-rich oligonucleotides as aptamers that recognize protons and undergo conformational transitions. Proper labeling of the aptamer with a fluorescent tag constitutes a platform to construct a pH-sensitive aptasensor. Since the hemiprotonated C-C⁺ base pairs are responsible for the folded tetraplex structure of i-motif, we decided to substitute one of cytosines in an aptamer sequence with its fluorescent analogue, 1,3-diaza-2-oxophenothiazine (tC). In this paper we report on three tC-modified fluorescent probes that contain RET related sequences as a proton recognizing aptamer. Results of the circular dichroism (CD), UV absorption melting experiments, and steady-state fluorescence measurements of these tC-modified i-motif probes are presented and discussed. The pH-induced i-motif formation by the probes resulted in fluorescence quenching of tC fluorophore. Efficiency of quenching was related to the pH variations. Suitability of the sensor for monitoring pH changes was also demonstrated.
Collapse
Affiliation(s)
- Patrycja Bielecka
- Laboratory of Bioanalytical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b 61-614 Poznan, Poland.
| | - Bernard Juskowiak
- Laboratory of Bioanalytical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b 61-614 Poznan, Poland.
| |
Collapse
|