1
|
Lioret V, Renault K, Maury O, Romieu A. Valkyrie Probes: A Novel Class of Enzyme-Activatable Photosensitizers based on Sulfur- and Seleno-Rosamines with Pyridinium Unit. Chem Asian J 2023; 18:e202300756. [PMID: 37811909 DOI: 10.1002/asia.202300756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/10/2023]
Abstract
The rational design of activatable photosensitizers (aPSs) uncaged by specific disease biomarkers is currently booming due to their positive attributes to achieve targeted photodynamic therapy (PDT). In this context, we present here the synthesis and detailed photophysical characterization of a novel class of hetero-rosamine dyes bearing sulfur or selenium as bridging heavy atom and 4-pyridyl meso-substituent as optically tunable group. The main feature of such photoactive platforms is the spectacular change of their spectral properties depending on the caging/decaging status of their 4-pyridyl moiety (cationic pyridinium vs. neutral pyridine). The preparation of two alkaline phosphatase (ALP)-responsive probes (named Valkyrie probes) was achieved through formal N-quaternarization with 4-phosphoryloxybenzyl, the traditional recognition moiety for this important diagnostic enzyme. Bio-analytical validations including fluorescence/singlet oxygen phosphorescence enzyme assays and RP-HPLC-fluorescence/-MS analyses have enabled us to demonstrate the viability and effectiveness of this novel photosensitizer activation strategy. Since sulfur-containing Valkyrie probe also retains high fluorogenicity in the orange-red spectral range, this study highlights meso-pyridyl-substituted S-pyronin scaffolds as valuable candidates for the rapid construction of molecular phototheranostic platforms suitable for combined fluorescence diagnosis and PDT.
Collapse
Affiliation(s)
- Vivian Lioret
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université de Bourgogne, 9, Avenue Alain Savary, 21000, Dijon, France
| | - Kévin Renault
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université de Bourgogne, 9, Avenue Alain Savary, 21000, Dijon, France
- Present address: CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL, 91400, Orsay, France
| | - Olivier Maury
- University of Lyon, Laboratoire de Chimie, UMR 5182, CNRS, ENS Lyon, 46, Allée d'Italie, 69364, Lyon, France
| | - Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université de Bourgogne, 9, Avenue Alain Savary, 21000, Dijon, France
| |
Collapse
|
2
|
Alom KM, Kumara GSR, Seo YJ. Unnatural nucleotide-based rkDNA probe combined with graphene oxide for detection of alkaline phosphatase activity. Bioorg Med Chem Lett 2022; 64:128694. [PMID: 35314327 DOI: 10.1016/j.bmcl.2022.128694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 11/18/2022]
Abstract
In this study we developed a fluorescent double-stranded DNA, incorporating an unnatural dUrk nucleotide, that we used as a probe for the detection of alkaline phosphatase (ALP) based on enzymatic cleavage of the non-fluorescent complementary strand. Primer extension performed using the unnatural nucleotide triphosphate dUrkTP and the natural deoxynucleotide triphosphates dATP, dCTP, and dGTP provided a simple fluorescent DNA strand that hybridized with the 5́-monophosphate non-fluorescent complementary strand. When applying the 5́-phosphate recognition and cleavage properties of lambda exonuclease (λ-exo), this probe could bind to graphene oxide (GO) and quench the fluorescence (in the absence of ALP) or not bind to GO and retain its fluorescence (in the presence of ALP). We obtained strongly fluorescent DNA strands through simple incorporation of multiple A sites in the complementary sequence, thereby increasing the number of dUrk residues during primer extension. This unnatural nucleotide-based rkDNA probing system exhibited high fluorescence differentiation for discriminating the status of ALP. This rkDNA-GO probing system appears to be a promising tool for monitoring the activity of disease-associated enzymes.
Collapse
Affiliation(s)
- Kazi Morshed Alom
- Department of Chemistry, Jeonbuk National University, Jeonju 561-756, Republic of Korea
| | | | - Young Jun Seo
- Department of Chemistry, Jeonbuk National University, Jeonju 561-756, Republic of Korea.
| |
Collapse
|
3
|
Chen X, Huang Z, Huang L, Shen Q, Yang ND, Pu C, Shao J, Li L, Yu C, Huang W. Small-molecule fluorescent probes based on covalent assembly strategy for chemoselective bioimaging. RSC Adv 2022; 12:1393-1415. [PMID: 35425188 PMCID: PMC8979026 DOI: 10.1039/d1ra08037g] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/13/2021] [Indexed: 12/20/2022] Open
Abstract
In this review, we comprehensively summarize the recent progress in the development of small molecular fluorescent probes based on the covalent assembly principle. The challenges and perspective in this field are also presented.
Collapse
Affiliation(s)
- Xingwei Chen
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Zhongxi Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Lihua Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Qian Shen
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Nai-Di Yang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Chibin Pu
- Department of Gastroenterology, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, P. R. China
| | - Jinjun Shao
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Changmin Yu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
- Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, P. R. China
| |
Collapse
|
4
|
Dubovetskyi A, Cherukuri KP, Ashani Y, Meshcheriakova A, Reuveny E, Ben-Nissan G, Sharon M, Fumagalli L, Tawfik DS. Quinone Methide-Based Organophosphate Hydrolases Inhibitors: Trans Proximity Labelers versus Cis Labeling Activity-Based Probes. Chembiochem 2020; 22:894-903. [PMID: 33105515 DOI: 10.1002/cbic.202000611] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/24/2020] [Indexed: 11/05/2022]
Abstract
Quinone methide (QM) chemistry is widely applied including in enzyme inhibitors. Typically, enzyme-mediated bond breaking releases a phenol product that rearranges into an electrophilic QM that in turn covalently modifies protein side chains. However, the factors that govern the reactivity of QM-based inhibitors and their mode of inhibition have not been systematically explored. Foremost, enzyme inactivation might occur in cis, whereby a QM molecule inactivates the very same enzyme molecule that released it, or by trans if the released QMs diffuse away and inactivate other enzyme molecules. We examined QM-based inhibitors for enzymes exhibiting phosphoester hydrolase activity. We tested different phenolic substituents and benzylic leaving groups, thereby modulating the rates of enzymatic hydrolysis, phenolate-to-QM rearrangement, and the electrophilicity of the resulting QM. By developing assays that distinguish between cis and trans inhibition, we have identified certain combinations of leaving groups and phenyl substituents that lead to inhibition in the cis mode, while other combinations gave trans inhibition. Our results suggest that cis-acting QM-based substrates could be used as activity-based probes to identify various phospho- and phosphono-ester hydrolases, and potentially other hydrolases.
Collapse
Affiliation(s)
- Artem Dubovetskyi
- Department of Biomolecular Sciences, The Weizmann Institute of Science, Rehovot, 76 100, Israel
| | | | - Yacov Ashani
- Department of Biomolecular Sciences, The Weizmann Institute of Science, Rehovot, 76 100, Israel
| | - Anna Meshcheriakova
- Department of Biomolecular Sciences, The Weizmann Institute of Science, Rehovot, 76 100, Israel
| | - Eitan Reuveny
- Department of Biomolecular Sciences, The Weizmann Institute of Science, Rehovot, 76 100, Israel
| | - Gili Ben-Nissan
- Department of Biomolecular Sciences, The Weizmann Institute of Science, Rehovot, 76 100, Israel
| | - Michal Sharon
- Department of Biomolecular Sciences, The Weizmann Institute of Science, Rehovot, 76 100, Israel
| | - Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di, via Mangiagalli 25, 20133, Milano, Italy
| | - Dan S Tawfik
- Department of Biomolecular Sciences, The Weizmann Institute of Science, Rehovot, 76 100, Israel
| |
Collapse
|
5
|
Liu G, Lovell JF, Zhang L, Zhang Y. Stimulus-Responsive Nanomedicines for Disease Diagnosis and Treatment. Int J Mol Sci 2020; 21:E6380. [PMID: 32887466 PMCID: PMC7504550 DOI: 10.3390/ijms21176380] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 02/07/2023] Open
Abstract
Stimulus-responsive drug delivery systems generally aim to release the active pharmaceutical ingredient (API) in response to specific conditions and have recently been explored for disease treatments. These approaches can also be extended to molecular imaging to report on disease diagnosis and management. The stimuli used for activation are based on differences between the environment of the diseased or targeted sites, and normal tissues. Endogenous stimuli include pH, redox reactions, enzymatic activity, temperature and others. Exogenous site-specific stimuli include the use of magnetic fields, light, ultrasound and others. These endogenous or exogenous stimuli lead to structural changes or cleavage of the cargo carrier, leading to release of the API. A wide variety of stimulus-responsive systems have been developed-responsive to both a single stimulus or multiple stimuli-and represent a theranostic tool for disease treatment. In this review, stimuli commonly used in the development of theranostic nanoplatforms are enumerated. An emphasis on chemical structure and property relationships is provided, aiming to focus on insights for the design of stimulus-responsive delivery systems. Several examples of theranostic applications of these stimulus-responsive nanomedicines are discussed.
Collapse
Affiliation(s)
- Gengqi Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Jonathan F. Lovell
- Department of Biomedical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA;
| | - Lei Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Yumiao Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| |
Collapse
|
6
|
Han J, Cheng L, Zhu Y, Xu X, Ge C. Covalent-Assembly Based Fluorescent Probes for Detection of hNQO1 and Imaging in Living Cells. Front Chem 2020; 8:756. [PMID: 33005608 PMCID: PMC7479225 DOI: 10.3389/fchem.2020.00756] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 07/21/2020] [Indexed: 12/12/2022] Open
Abstract
Human NAD(P)H: quinone oxidoreductase (hNQO1) is an important biomarker for human malignant tumors. Detection of NQO1 accurately is of great significance to improve the early diagnosis of cancer and prognosis of cancer patients. In this study, based on the covalent assembly strategy, hNQO1-activated fluorescent probes 1 and 2 are constructed by introducing coumarin precursor 2-cyano-3-(4-(diethylamino)-2-hydroxyphenyl) acrylic acid and self-immolative linkers. Under reaction with hNQO1 and NADH, turn-on fluorescence appears due to in-situ formation of the organic fluorescent compound 7-diethylamino-3-cyanocoumarin, and fluorescent intensity changes significantly. Probe 1 and 2 for detection of hNQO1 are not interfered by other substances and have low toxicity in cells. In addition to quantitative detection of hNQO1 in vitro, they have also been successfully applied to fluorescent imaging in living cells.
Collapse
Affiliation(s)
| | - Longhao Cheng
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ya Zhu
- School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiaowei Xu
- School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Chaoliang Ge
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| |
Collapse
|
7
|
Dejouy G, Renault K, Bonnin Q, Chevalier A, Michaudet C, Picquet M, Valverde IE, Romieu A. Fluorogenic Enzyme-Triggered Domino Reactions Producing Quinoxalin-2(1 H)-one-based Heterocycles. Org Lett 2020; 22:6494-6499. [PMID: 32806136 DOI: 10.1021/acs.orglett.0c02287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A simple and effective biocompatible domino reaction triggered by a model protease and leading to the formation of strongly fluorescent quinoxalin-2(1H)-one N-heterocycles is described. Some positive attributes including versatility and the ability to provide outstanding fluorescence "OFF-ON" responses were revealed by this work. They open the way for practical applications of this novel type of "covalent-assembly"-based fluorescent probe in the fields of sensing and bioimaging.
Collapse
Affiliation(s)
- Garance Dejouy
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France
| | - Kévin Renault
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France
| | - Quentin Bonnin
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France
| | - Arnaud Chevalier
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 1, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Cédric Michaudet
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France
| | - Michel Picquet
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France
| | - Ibai E Valverde
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France
| | - Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France
| |
Collapse
|
8
|
Xu W, Li X, Han M, Zhou T, Yang Y, Li W. A new "turn-on" fluorescence probe based on hydrazine-triggered tandem reaction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117754. [PMID: 31759882 DOI: 10.1016/j.saa.2019.117754] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/01/2019] [Accepted: 11/02/2019] [Indexed: 06/10/2023]
Abstract
Hydrazine is extremely harmful to the human body. The leakage of hydrazine is liable to cause potential safety hazards. Here, we reported a new fluorescence probe based on the tandem reaction. The hydrazine-triggered hydrazinolysis-cyclization resulted in the formation of the iminocoumarin. The fluorescence intensity at 522 nm of the probe increased after the reaction with hydrazine. There was a linear relationship between the fluorescence intensity and the concentration of hydrazine (0.14-120.00 μM). The LOD of the probe to N2H4 was 1.36 ppb. Notably, the probe could detect hydrazine in BT474 cells and tap water.
Collapse
Affiliation(s)
- Wenzhi Xu
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China.
| | - Xue Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China
| | - Mengnan Han
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China
| | - Tingting Zhou
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China
| | - Yutao Yang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China
| | - Wei Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China.
| |
Collapse
|
9
|
Dhiman S, Ahmad M, Singla N, Kumar G, Singh P, Luxami V, Kaur N, Kumar S. Chemodosimeters for optical detection of fluoride anion. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213138] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
10
|
Han Y, Chen J, Li Z, Chen H, Qiu H. Recent progress and prospects of alkaline phosphatase biosensor based on fluorescence strategy. Biosens Bioelectron 2020; 148:111811. [DOI: 10.1016/j.bios.2019.111811] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/19/2019] [Accepted: 10/22/2019] [Indexed: 12/20/2022]
|
11
|
Yangyang Y, Chen Z, Rizhao P, Shiwei Z, Shengtao Y, Yao T, Weilong Z, Liyue W, Weiping Z, Yufang X, Xuhong Q. A ratiometric fluorescent probe for alkaline phosphatase with high sensitivity. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.04.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
12
|
Quesneau V, Roubinet B, Renard PY, Romieu A. Reinvestigation of the synthesis of “covalent-assembly” type probes for fluoride ion detection. Identification of novel 7-(diethylamino)coumarins with aggregation-induced emission properties. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151279] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
13
|
Renault K, Debieu S, Richard JA, Romieu A. Deeper insight into protease-sensitive "covalent-assembly" fluorescent probes for practical biosensing applications. Org Biomol Chem 2019; 17:8918-8932. [PMID: 31560014 DOI: 10.1039/c9ob01773a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report a rational and systematic study devoted to the structural optimisation of a novel class of protease-sensitive fluorescent probes that we recently reported (S. Debieu and A. Romieu, Org. Biomol. Chem., 2017, 15, 2575-2584), based on the "covalent-assembly" strategy and using the targeted enzyme penicillin G acylase as a model protease to build a fluorescent pyronin dye by triggering a biocompatible domino cyclisation-aromatisation reaction. The aim is to identify ad hoc probe candidate(s) that might combine fast/reliable fluorogenic "turn-on" response, full stability in complex biological media and ability to release a second molecule of interest (drug or second fluorescent reporter), for applications in disease diagnosis and therapy. We base our strategy on screening a set of active methylene compounds (C-nucleophiles) to convert the parent probe to various pyronin caged precursors bearing Michael acceptor moieties of differing reactivities. In vitro stability and fluorescent enzymatic assays combined with HPLC-fluorescence analyses provide data useful for defining the most appropriate structural features for these fluorogenic scaffolds depending on the specifications inherent to biological application (from biosensing to theranostics) for which they will be used.
Collapse
Affiliation(s)
- Kévin Renault
- ICMUB, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France.
| | | | | | | |
Collapse
|
14
|
Iqbal Z, Iqbal A, Ashraf Z, Latif M, Hassan M, Nadeem H. Synthesis and docking studies of N-(5-(alkylthio)-1,3,4-oxadiazol-2-yl)methyl)benzamide analogues as potential alkaline phosphatase inhibitors. Drug Dev Res 2019; 80:646-654. [PMID: 31032540 DOI: 10.1002/ddr.21542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/01/2019] [Accepted: 04/13/2019] [Indexed: 12/14/2022]
Abstract
A series of N-(5-(alkylthio)-1,3,4-oxadiazol-2-yl)methyl)benzamides 6a-i were synthesized as alkaline phosphatase inhibitors. The intermediate 5-substituted 1,3,4-oxadiazole-2-thione 4 was synthesized starting with hippuric acid. Hippuric acid in the first step was converted into corresponding methyl ester 2 which upon reaction with hydrazine hydrate furnished the formation of hydrazide 3. The hippuric acid hydrazide was then cyclized into 5-substituted 1,3,4-oxadiazole-2-thione 4. The intermediate 4 was then reacted with alkyl or aryl halides 5a-5i to afford the title compounds N-(5-(methylthio)-1,3,4-oxadiazol-2-yl)methyl)benzamides 6a-i. The bioassay results showed that compounds 6a-i exhibited good to excellent alkaline phosphatase inhibitory activity. The most potent activity was exhibited by the compound 6i having IC50 value 0.420 μM, whereas IC50 value of standard (KH2 PO4 ) was 2.80 μM. Molecular docking studies was performed against alkaline phosphatase enzyme (PDBID 1EW2) to check binding affinity of the synthesized compounds 6a-i against target protein. The docking results showed that three compounds 6c, 6e, and 6i have maximum binding interactions with binding energy values of -8 kcal/mol. The compound 6i displayed the interactions of oxadiazole ring nitrogen with amino acid His265 having a binding distance 2.13 Ǻ. It was concluded from our results that synthesized compounds, especially compound 6i may serve as lead structure to design more potent inhibitors of human alkaline phosphatase.
Collapse
Affiliation(s)
- Zafar Iqbal
- Department of Chemistry, Allama Iqbal Open University, Islamabad, Pakistan
| | - Ambreen Iqbal
- Department of Chemistry, Allama Iqbal Open University, Islamabad, Pakistan
| | - Zaman Ashraf
- Department of Chemistry, Allama Iqbal Open University, Islamabad, Pakistan
| | - Muhammad Latif
- Department is genetics and Inherited diseases, College of Medicine, Centre for Genetics and Inherited Diseases (CGID), Taibah University, Al-Madinah Al-Munawwarah, Saudi Arabia
| | - Mubashir Hassan
- Department of Biology, College of Natural Sciences, Kongju National University, Gongju, Republic of Korea
| | - Humaira Nadeem
- Department of Pharmaceutical Chemistry, Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| |
Collapse
|
15
|
Joachimiak Ł, Błażewska KM. Phosphorus-Based Probes as Molecular Tools for Proteome Studies: Recent Advances in Probe Development and Applications. J Med Chem 2018; 61:8536-8562. [DOI: 10.1021/acs.jmedchem.8b00249] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Łukasz Joachimiak
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego Street 116, 90-924 Łódź, Poland
| | - Katarzyna M. Błażewska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego Street 116, 90-924 Łódź, Poland
| |
Collapse
|
16
|
|
17
|
Podder A, Senapati S, Maiti P, Kamalraj D, Jaffer SS, Khatun S, Bhuniya S. A ‘turn-on’ fluorescent probe for lysosomal phosphatase: a comparative study for labeling of cancer cells. J Mater Chem B 2018; 6:4514-4521. [DOI: 10.1039/c8tb01143e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A turn-on fluorescent probe (LP1) discriminates cancer cells from normal cells based on expression of phosphatase in lysosomes.
Collapse
Affiliation(s)
- Arup Podder
- Amrita Centre for Industrial Research & Innovation
- Amrita School of Engineering
- Amrita Vishwa Vidyapeetham
- Coimbatore
- India
| | - Sudipta Senapati
- School of Materials Science and Technology
- Indian Institute of Technology (BHU)
- Vanarasi
- India
| | - Pralay Maiti
- School of Materials Science and Technology
- Indian Institute of Technology (BHU)
- Vanarasi
- India
| | - Devaraj Kamalraj
- Department of Chemistry
- Coimbatore Institute of Technology
- Coimbatore
- India
| | - Syed S Jaffer
- Department of Chemistry
- Coimbatore Institute of Technology
- Coimbatore
- India
| | - Sabina Khatun
- Amrita Centre for Industrial Research & Innovation
- Amrita School of Engineering
- Amrita Vishwa Vidyapeetham
- Coimbatore
- India
| | - Sankarprasad Bhuniya
- Amrita Centre for Industrial Research & Innovation
- Amrita School of Engineering
- Amrita Vishwa Vidyapeetham
- Coimbatore
- India
| |
Collapse
|
18
|
Islam MS, Sazawa K, Hata N, Sugawara K, Kuramitz H. Determination of heavy metal toxicity by using a micro-droplet hydrodynamic voltammetry for microalgal bioassay based on alkaline phosphatase. CHEMOSPHERE 2017; 188:337-344. [PMID: 28888859 DOI: 10.1016/j.chemosphere.2017.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/29/2017] [Accepted: 09/02/2017] [Indexed: 06/07/2023]
Abstract
We developed an electrochemical microalgal bioassay for the determination of heavy metal toxicity in water on the basis of the alkaline phosphatase (ALP) enzyme inhibition of Chlamydomonas reinhardtii. Five heavy metals were chosen as toxicants: Hg, Cd, Pb, Zn, and Cu. The induced ALP activity of C. reinhardtii was inhibited using the phosphate starvation method, and the results were evaluated by measuring the electrochemical oxidation of p-aminophenol (PAP) following the enzymatic conversion of p-aminophenyl phosphate (PAPP) as a substrate. The rapid determination of enzymatic activity was achieved using hydrodynamic voltammetry in a 50 μL micro-droplet with a rotating disk electrode (RDE). Enzymatic activity over a PAPP substrate is affected by heavy metal ions, and this phenomenon decreases the chronoamperometric current signal. The concentrations of Hg, Cd, Pb, Zn, and Cu in which the ALP activity was half that of the control (EC50) were found to be 0.017, 0.021, 0.27, 1.30, and 1.36 μM, respectively. The RDE system was demonstrated to be capable of detecting enzymatic activity by using a small amount of regent, a reaction time of only 60 s, and a detection limit of 5.4 × 10-7 U.
Collapse
Affiliation(s)
- Md Saiful Islam
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | - Kazuto Sazawa
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | - Noriko Hata
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | | | - Hideki Kuramitz
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan.
| |
Collapse
|
19
|
Podder A, Alex SM, Maiti M, Maiti KK, Bhuniya S. Self-calibrated fluorescent probe resembled as an indicator of the lysosomal phosphatase pertaining to the cancer cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 177:105-111. [PMID: 29111484 DOI: 10.1016/j.jphotobiol.2017.10.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 10/17/2017] [Accepted: 10/17/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Arup Podder
- Amrita Centre for Industrial Research & Innovation, Amrita University, Coimbatore 64112, India
| | - Susan M Alex
- Chemical Sciences & Technology Division, CSIR-National Institute for Interdisciplinary Science & Technology (CSIR-NIIST), Industrial Estate, Pappanamcode, Thiruvananthapuram 695019, Kerala, India
| | - Mrinmoy Maiti
- Amrita Centre for Industrial Research & Innovation, Amrita University, Coimbatore 64112, India
| | - Kaustabh Kumar Maiti
- Chemical Sciences & Technology Division, CSIR-National Institute for Interdisciplinary Science & Technology (CSIR-NIIST), Industrial Estate, Pappanamcode, Thiruvananthapuram 695019, Kerala, India; Academy of Scientific and Innovative Research, AcSIR, CSIR-NIIST, Thiruvananthapuram 695019, Kerala, India.
| | - Sankarprasad Bhuniya
- Amrita Centre for Industrial Research & Innovation, Amrita University, Coimbatore 64112, India; Department of Chemical Engineering & Materials Science, Amrita University, Coimbatore 641112, India.
| |
Collapse
|
20
|
Chyan W, Kilgore HR, Gold B, Raines RT. Electronic and Steric Optimization of Fluorogenic Probes for Biomolecular Imaging. J Org Chem 2017; 82:4297-4304. [PMID: 28345343 PMCID: PMC5519408 DOI: 10.1021/acs.joc.7b00285] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fluorogenic probes are invaluable tools for spatiotemporal investigations within live cells. In common fluorogenic probes, the intrinsic fluorescence of a small-molecule fluorophore is masked by esterification until entry into a cell, where endogenous esterases catalyze the hydrolysis of the masking groups, generating fluorescence. The susceptibility of masking groups to spontaneous hydrolysis is a major limitation of these probes. Previous attempts to address this problem have incorporated auto-immolative linkers at the cost of atom economy and synthetic adversity. Here, we report on a linker-free strategy that employs adventitious electronic and steric interactions in easy-to-synthesize probes. We find that X···C═O n→π* interactions and acyl group size are optimized in 2',7'-dichlorofluorescein diisobutyrate. This probe is relatively stable to spontaneous hydrolysis but is a highly reactive substrate for esterases both in vitro and in cellulo, yielding a bright, photostable fluorophore with utility in biomolecular imaging.
Collapse
Affiliation(s)
- Wen Chyan
- Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, United States
| | - Henry R. Kilgore
- Graduate Program in Biophysics, University of Wisconsin–Madison, Madison, Wisconsin 53706, United States
| | - Brian Gold
- Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, United States
| | - Ronald T. Raines
- Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, United States
- Department of Biochemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, United States
| |
Collapse
|
21
|
Debieu S, Romieu A. In situ formation of pyronin dyes for fluorescence protease sensing. Org Biomol Chem 2017; 15:2575-2584. [DOI: 10.1039/c7ob00370f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cutting-edge strategy for fluorogenic sensing of proteases (leucine aminopeptidase for the proof of concept) and based on the “covalent-assembly” principle is reported. Non-fluorescent mixed bis-aryl ethers are readily converted into a fluorescent pyronin through a domino process triggered by the peptide bond cleavage event caused by the targeted enzyme.
Collapse
Affiliation(s)
- Sylvain Debieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR 6302
- CNRS
- Univ. Bourgogne Franche-Comté
- 21078 Dijon
| | - Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR 6302
- CNRS
- Univ. Bourgogne Franche-Comté
- 21078 Dijon
| |
Collapse
|
22
|
Sloniec-Myszk J, Resch-Genger U, Hennig A. Chiral, J-Aggregate-Forming Dyes for Alternative Signal Modulation Mechanisms in Self-Immolative Enzyme-Activatable Optical Probes. J Phys Chem B 2016; 120:877-85. [DOI: 10.1021/acs.jpcb.5b10526] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jagoda Sloniec-Myszk
- BAM Federal Institute
for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany
| | - Ute Resch-Genger
- BAM Federal Institute
for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany
| | - Andreas Hennig
- BAM Federal Institute
for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany
- Department
of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| |
Collapse
|
23
|
Lu Z, Wu J, Liu W, Zhang G, Wang P. A ratiometric fluorescent probe for quantification of alkaline phosphatase in living cells. RSC Adv 2016. [DOI: 10.1039/c6ra00983b] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A ratiometric fluorescent probe with strong intramolecular charge transfer (ICT) character has been designed for the detection of alkaline phosphatase (ALP).
Collapse
Affiliation(s)
- Zhenxing Lu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Jiasheng Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Guangyou Zhang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| |
Collapse
|
24
|
Alouane A, Labruère R, Le Saux T, Schmidt F, Jullien L. Self-immolative spacers: kinetic aspects, structure-property relationships, and applications. Angew Chem Int Ed Engl 2015; 54:7492-509. [PMID: 26053475 DOI: 10.1002/anie.201500088] [Citation(s) in RCA: 247] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Indexed: 11/08/2022]
Abstract
Self-immolative spacers are covalent assemblies tailored to correlate the cleavage of two chemical bonds after activation of a protective part in a precursor: Upon stimulation, the protective moiety is removed, which generates a cascade of disassembling reactions leading to the temporally sequential release of smaller molecules. Originally introduced to overcome limitations for drug delivery, self-immolative spacers have gained wide interest in medicinal chemistry, analytical chemistry, and material science. For most applications, the kinetics of the disassembly of the activated self-immolative spacer governs functional properties. This Review addresses kinetic aspects of self-immolation. It provides information for selecting a particular self-immolative motif for a specific demand. Moreover, it should help researchers design kinetic experiments and fully exploit the rich perspectives of self-immolative spacers.
Collapse
Affiliation(s)
- Ahmed Alouane
- Ecole Normale Supérieure-PSL Research University, Department of Chemistry, 24, rue Lhomond, 75005 Paris (France).,Sorbonne Universités, UPMC Univ Paris 06, PASTEUR, 75005 Paris (France).,CNRS, UMR 8640 PASTEUR, 75005 Paris (France).,Institut Curie, Centre de Recherche, 26, rue d'Ulm, 75248 Paris (France).,CNRS, UMR 3666, 75248 Paris (France).,INSERM, U 1143, 75248 Paris (France)
| | - Raphaël Labruère
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182, Université Paris Sud, 91405 Orsay Cedex (France)
| | - Thomas Le Saux
- Ecole Normale Supérieure-PSL Research University, Department of Chemistry, 24, rue Lhomond, 75005 Paris (France).,Sorbonne Universités, UPMC Univ Paris 06, PASTEUR, 75005 Paris (France).,CNRS, UMR 8640 PASTEUR, 75005 Paris (France)
| | - Frédéric Schmidt
- Institut Curie, Centre de Recherche, 26, rue d'Ulm, 75248 Paris (France). .,CNRS, UMR 3666, 75248 Paris (France). .,INSERM, U 1143, 75248 Paris (France).
| | - Ludovic Jullien
- Ecole Normale Supérieure-PSL Research University, Department of Chemistry, 24, rue Lhomond, 75005 Paris (France). .,Sorbonne Universités, UPMC Univ Paris 06, PASTEUR, 75005 Paris (France). .,CNRS, UMR 8640 PASTEUR, 75005 Paris (France).
| |
Collapse
|
25
|
Alouane A, Labruère R, Le Saux T, Schmidt F, Jullien L. Selbstzerlegende Spacer: kinetische Aspekte, Struktur-Eigenschafts-Beziehungen und Anwendungen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500088] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
26
|
Jacquemet A, Rihn S, Ulrich G, Renard PY, Romieu A, Ziessel R. Rational Design of Latent Fluorophores from Water-Soluble Hydroxyphenyltriazine Dyes Suitable for Lipase Sensing. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
27
|
Romieu A. “AND” luminescent “reactive” molecular logic gates: a gateway to multi-analyte bioimaging and biosensing. Org Biomol Chem 2015; 13:1294-306. [DOI: 10.1039/c4ob02076f] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This feature article focuses on the recent development of “AND” luminescent molecular logic gates, in which the optical output is produced in response to multiple (bio)chemical inputs and through cascades of covalent bond-modifying reactions triggered by target (bio)analytes, for biosensing and bioimaging applications in complex media.
Collapse
Affiliation(s)
- Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR CNRS 6302
- Université de Bourgogne
- 21078 Dijon
- France
| |
Collapse
|
28
|
Debieu S, Romieu A. Dual enzyme-responsive “turn-on” fluorescence sensing systems based on in situ formation of 7-hydroxy-2-iminocoumarin scaffolds. Org Biomol Chem 2015; 13:10348-61. [DOI: 10.1039/c5ob01624j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein report a novel class of dual enzyme-responsive fluorogenic probes based on two orthogonal deprotection reactions via the “covalent assembly” principle. Sensing of two different enzymes (hydrolase and nitroreductase) through domino reactions, producing the push–pull backbone of a fluorescent 3-substituted 7-hydroxy-2-iminocoumarin dye, is reported.
Collapse
Affiliation(s)
- Sylvain Debieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR 6302
- CNRS
- Univ. Bourgogne Franche-Comté
- 21078 Dijon
| | - Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR 6302
- CNRS
- Univ. Bourgogne Franche-Comté
- 21078 Dijon
| |
Collapse
|
29
|
Li Y, Li Y, Liu Z, Su X. Sensitive fluorometric detection of alkaline phosphatase using a water-soluble conjugated polymer. RSC Adv 2014. [DOI: 10.1039/c4ra05844e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
30
|
Takahashi T, Otsubo T, Ikeda K, Minami A, Suzuki T. Histochemical imaging of alkaline phosphatase using a novel fluorescent substrate. Biol Pharm Bull 2014; 37:1668-73. [PMID: 25109307 DOI: 10.1248/bpb.b14-00456] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Histochemical visualization of phosphatase is exclusively required for Western immunoblotting and antigen-positive cell staining using an alkaline phosphatase (AP)-labeled secondary antibody. This detection has been performed by several reagents including 5-bromo-4-chloro-3-indolyl-phosphate (X-Phos), nitro blue tetrazolium (NBT), 3-(2'-spiroadamantane)-4-methoxy-4-(3″-phosphoryloxy)phenyl-1,2-dioxetane and 2-(5'-chloro-2'-phosphoryloxyphenyl)-6-chloro-4-[3H]-quinazolinone (ELF® 97 Phosphate). We previously reported that 2-(benzothiazol-2-yl)-4-bromophenol bonded with N-acetylneuraminic acid (BTP3-Neu5Ac), enabled fluorescent histochemical visualization of sialidase activity. 2-(Benzothiazol-2-yl)-4-bromophenol (BTP3), which is formed from BTP3-Neu5Ac by sialidase reaction, is a crystalline, insoluble and stable fluorogenic compound, deposited at the site of enzyme activity. We developed a BTP3 phosphate ester (BTP3-Phos) for the purpose of fluorescent histochemical visualization of phosphatase activity. BTP3-Phos emitted fluorescence in a manner dependent on the concentration of the AP-labeled antibody. BTP3-Phos also enabled fluorescent histochemical visualization of AP-blotted dots in a manner dependent on the concentration of the AP-labeled antibody. The detection sensitivity of BTP3-Phos was estimated to be greater than that of the conventional method using X-Phos and NBT. Influenza A virus-infected cells were fixed and reacted with anti-influenza A virus antibodies and incubated continuously with an AP-labeled secondary antibody. BTP3-Phos stained the infected cells with distinct green fluorescence. These results indicate that BTP3-Phos can enable fluorescent immunohistochemical staining analysis using an AP-labeled antibody. BTP3-Phos would be beneficial for histochemical staining of AP activity, and may be applicable for multi-color staining or a cell sorter.
Collapse
Affiliation(s)
- Tadanobu Takahashi
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | | | | | | | | |
Collapse
|
31
|
Alvarado-Gámez AL, Alonso-Lomillo MA, Domínguez-Renedo O, Arcos-Martínez MJ. A disposable alkaline phosphatase-based biosensor for vanadium chronoamperometric determination. SENSORS (BASEL, SWITZERLAND) 2014; 14:3756-67. [PMID: 24569772 PMCID: PMC3958235 DOI: 10.3390/s140203756] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/24/2014] [Accepted: 02/08/2014] [Indexed: 11/17/2022]
Abstract
A chronoamperometric method for vanadium ion determination, based on the inhibition of the enzyme alkaline phosphatase, is reported. Screen-printed carbon electrodes modified with gold nanoparticles were used as transducers for the immobilization of the enzyme. The enzymatic activity over 4-nitrophenyl phosphate sodium salt is affected by vanadium ions, which results in a decrease in the chronoamperometric current registered. The developed method has a detection limit of 0.39 ± 0.06 µM, a repeatability of 7.7% (n = 4) and a reproducibility of 8% (n = 3). A study of the possible interferences shows that the presence of Mo(VI), Cr(III), Ca(II) and W(VI), may affect vanadium determination at concentration higher than 1.0 mM. The method was successfully applied to the determination of vanadium in spiked tap water.
Collapse
Affiliation(s)
- Ana Lorena Alvarado-Gámez
- CELEQ and School of Chemistry, University of Costa Rica, San Pedro de Montes de Oca, San José P.O. Box 11500-2060, Costa Rica.
| | | | - Olga Domínguez-Renedo
- Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain.
| | - María Julia Arcos-Martínez
- Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain.
| |
Collapse
|