1
|
Krause KD, Rees K, Darwish GH, Bernal-Escalante J, Algar WR. Bait and Cleave: Exosite-Binding Peptides on Quantum Dots Selectively Accelerate Protease Activity for Sensing with Enhanced Sensitivity. ACS NANO 2024; 18:17018-17030. [PMID: 38845136 DOI: 10.1021/acsnano.4c03265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
The advantageous optical properties of quantum dots (QDs) motivate their use in a wide variety of applications related to imaging and bioanalysis, including the detection of proteases and their activity. Recent studies have shown that surface chemistry on QDs is able to modulate protease activity, but only nonspecifically. Here, we present a strategy to selectively accelerate the activity of a particular target protease by as much as two orders of magnitude. Exosite-binding "bait" peptides were derived from proteins that span a range of biological roles─substrate, receptor, and inhibitor─and were used to increase the affinity of the QD-peptide conjugates for either thrombin or factor Xa, resulting in increased rates of proteolysis for coconjugated substrates. Unlike effects from QD surface chemistry, the acceleration was specific to the target protease with negligible acceleration of other proteases. Benefits of this "bait and cleave" sensing approach included detection limits that improved by more than an order of magnitude, reenabled detection of target protease against an overwhelming background of nontarget proteolysis, and mitigation of the action of inhibitors. The cumulative results point to a generalizable strategy, where the mechanism of acceleration, considerations for the design of bait peptides and conjugates, and routes to expanding the scope of this approach are discussed. Overall, this research represents a major step forward in the rational design of nanoparticle-based enzyme sensors that enhance sensitivity and selectivity.
Collapse
Affiliation(s)
- Katherine D Krause
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver , BC V6T 1Z1, Canada
| | - Kelly Rees
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver , BC V6T 1Z1, Canada
| | - Ghinwa H Darwish
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver , BC V6T 1Z1, Canada
| | - Jasmine Bernal-Escalante
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver , BC V6T 1Z1, Canada
| | - W Russ Algar
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver , BC V6T 1Z1, Canada
| |
Collapse
|
2
|
Liu S, Yin Y, Liu S, Wang C, Sun W, Hu X. Shining a light on liver health: advancements in fluorescence-enhanced enzyme biosensors for early disease detection. Front Bioeng Biotechnol 2024; 12:1392857. [PMID: 38707500 PMCID: PMC11066187 DOI: 10.3389/fbioe.2024.1392857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/05/2024] [Indexed: 05/07/2024] Open
Abstract
Early detection of liver diseases holds paramount importance in optimizing treatment outcomes and prognosis, thereby significantly enhancing the likelihood of recovery while mitigating the risk of progression to liver cancer. Liver diseases encompass a spectrum of conditions, each potentially manifesting distinct enzymatic profiles. Monitoring these enzymes in situ facilitates timely intervention and therapeutic management. In recent years, the field of biosensor technology has witnessed remarkable advancement, owing to strides in biomedicine and computational sciences. Biosensors have garnered widespread utility across medical and biological domains, spanning the detection of disease biomarkers, drug release tracking, ion imaging, and fluorescence imaging within living organisms. These applications have markedly enhanced imaging resolution and have the potential to refine disease diagnosis accuracy for clinicians. A pivotal aspect in the successful application of this technology lies in the construction of fluorescence probes adept at swiftly and selectively identifying target enzymes by amalgamating liver disease enzymes with fluorescence probe technology. However, research in this niche area remains relatively scarce. Building upon this foundational understanding, the present review delineates the utilization of biosensors in the early diagnosis of liver disease. Serving as a theoretical framework, this review envisages the development of high-performance biosensors tailored for the early detection of liver cancer. Furthermore, it offers insights into the potential of biosensor technology to progress and broaden its practical applications, thus contributing to the advancement of diagnostic methodologies in liver disease management.
Collapse
Affiliation(s)
- Shifeng Liu
- Department of the Interventional Medical Center, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yatong Yin
- Qingdao Maternal and Child Health and Family Planning Service Center, Qingdao, China
| | - Shihai Liu
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Congxiao Wang
- Department of the Interventional Medical Center, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wenshe Sun
- Qingdao Cancer Institute, Qingdao University, Qingdao, China
| | - Xiaokun Hu
- Department of the Interventional Medical Center, the Affiliated Hospital of Qingdao University, Qingdao, China
| |
Collapse
|
3
|
Tewari D, Bawari S, Mishra ST, Gupta P, M A, Cziáky Z, Jeko J, Lazarova I, Zengin G. Metabolomics-based pharmaceutical evaluation of different parts of Swertia chirayita (Roxb.) Buch.-Ham. ex C.B. Clarke from the western Himalayas. J Sep Sci 2024; 47:e2300795. [PMID: 38234031 DOI: 10.1002/jssc.202300795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/11/2023] [Accepted: 12/22/2023] [Indexed: 01/19/2024]
Abstract
Swertia species are common ingredients in numerous herbal remedies. It is also used to treat a wide range of illnesses and possess diverse therapeutic activities. The aim of the study is to elucidate the comprehensive metabolomics profile of Swertia chirayita and the role of various extraction methods in the phytochemical compositions of the extracts of S. chirayita, and their antioxidant and enzyme inhibitory activities. Extraction of the stems, leaves, and flowering tops of S. chirayita was performed by maceration, infusion, and soxhlation using methanol and water as solvent. Extracts were subjected to phytochemical profiling by a liquid-chromatographic system. Antioxidant and enzyme inhibitory activity was carried out. The metabolomics profiling showed that a diverse range of specialized metabolites were present in the stems and leaves & flowering tops of the plant. All the extracts showed substantial antioxidant and enzyme inhibitory activities further confirmed by molecular docking studies. This study appraised the use of S. chirayita aerial parts as a potential antioxidant and its therapeutic application in various chronic illnesses including Alzheimer's disease, diabetes, and other skin-related disorders.
Collapse
Affiliation(s)
- Devesh Tewari
- Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Sweta Bawari
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Noida, India
| | - Saurabh T Mishra
- Department of Career Services, Edvancer - a part of Global University System, India, Mumbai, India
| | - Pawan Gupta
- Department of Pharmaceutical Chemistry, Shri Vile Parle Kelavani Mandal's Institute of Pharmacy, Dhule, India
| | - Aryalaxmi M
- Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Zoltán Cziáky
- Agricultural and Molecular Research and Service Institute, University of Nyíregyháza, Nyiregyhaza, Hungary
| | - József Jeko
- Agricultural and Molecular Research and Service Institute, University of Nyíregyháza, Nyiregyhaza, Hungary
| | - Irina Lazarova
- Department of Chemistry, Faculty of Pharmacy, Medical University-Sofia, Sofia, Bulgaria
| | - Gökhan Zengin
- Department of Biology, Faculty of Science, Selçuk University, Konya, Turkey
| |
Collapse
|
4
|
Chen Q, Zheng L, Deng X, Zhang M, Han W, Huang Z, Miao C, Weng S. A Fluorescence Biosensor for Tyrosinase Activity Analysis Based on Silicon-Doped Carbon Quantum Dots. Chem Pharm Bull (Tokyo) 2023; 71:812-818. [PMID: 37704432 DOI: 10.1248/cpb.c23-00410] [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] [Indexed: 09/15/2023]
Abstract
Tyrosinase (TYR) plays a pivotal role in the biosynthesis of melanin, and its activity level holds critical implications for vitiligo, melanoma cancer, and food nutritional value. The sensitive determination of TYR activity is of great significance for both fundamental research and clinical investigations. In this work, we successfully synthesized silicon-doped carbon quantum dots (Si-CQDs) through a one-pot hydrothermal method with trans-aconitic acid as carbon source and N-[3-(trimethoxysilyl)propyl]ethylenediamine as the dopant, exhibiting remarkable fluorescence quantum yield (QY) and photostability. Correspondingly, Si-CQDs were used as a probe to construct a sensitive, rapid, and user-friendly fluorescence method for TYR detection. The method relied on the oxidation of isoprenaline (ISO) by TYR, where Si-CQDs were employed as a highly efficient probe. The testing mechanism was the internal filtering effect (IFE) observed between Si-CQDs and the oxidative system of ISO and TYR. Under the optimized conditions, the fluorescence strategy exhibited a detection range of 0.05-2.0 U/mL for TYR with a limit of detection (LOD) of 0.041 U/mL. Furthermore, we successfully demonstrated the accurate determination of TYR levels in human serum, showcasing the promising potential of this method in various practical scenarios.
Collapse
Affiliation(s)
- Qiang Chen
- Department of Andrology & Sexual Medicine, the First Affiliated Hospital of Fujian Medical University
| | - Lili Zheng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University
| | - Xiaoqin Deng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University
| | - Menghan Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University
| | - Wendi Han
- Department of Pharmacy, the First Affiliated Hospital of Fujian Medical University
| | - Zhengjun Huang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University
| | - Chenfang Miao
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University
- Department of Pharmacy, The 900th Hospital of Joint Logistics Team of the PLA, Fuzhou General Clinical Medical College of Fujian Medical University
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University
| |
Collapse
|
5
|
Wang Z, Han D, Wang H, Zheng M, Xu Y, Zhang H. Organic Semiconducting Nanoparticles for Biosensor: A Review. BIOSENSORS 2023; 13:bios13040494. [PMID: 37185569 PMCID: PMC10136359 DOI: 10.3390/bios13040494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 05/17/2023]
Abstract
Highly bio-compatible organic semiconductors are widely used as biosensors, but their long-term stability can be compromised due to photo-degradation and structural instability. To address this issue, scientists have developed organic semiconductor nanoparticles (OSNs) by incorporating organic semiconductors into a stable framework or self-assembled structure. OSNs have shown excellent performance and can be used as high-resolution biosensors in modern medical and biological research. They have been used for a wide range of applications, such as detecting small biological molecules, nucleic acids, and enzyme levels, as well as vascular imaging, tumor localization, and more. In particular, OSNs can simulate fine particulate matters (PM2.5, indicating particulate matter with an aerodynamic diameter less than or equal to 2.5 μm) and can be used to study the biodistribution, clearance pathways, and health effects of such particles. However, there are still some problems that need to be solved, such as toxicity, metabolic mechanism, and fluorescence intensity. In this review, based on the structure and design strategies of OSNs, we introduce various types of OSNs-based biosensors with functional groups used as biosensors and discuss their applications in both in vitro and in vivo tracking. Finally, we also discuss the design strategies and potential future trends of OSNs-based biosensors. This review provides a theoretical scaffold for the design of high-performance OSNs-based biosensors and highlights important trends and future directions for their development and application.
Collapse
Affiliation(s)
- Zheng Wang
- Key Laboratory of Rubber-Plastics of Ministry of Education/Shandong Province (QUST), School of Polymer Science and Engineering, Qingdao University of Science and Technology, 53-Zhengzhou Road, Qingdao 266042, China
| | - Dongyang Han
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Hongzhen Wang
- Key Laboratory of Rubber-Plastics of Ministry of Education/Shandong Province (QUST), School of Polymer Science and Engineering, Qingdao University of Science and Technology, 53-Zhengzhou Road, Qingdao 266042, China
| | - Meng Zheng
- R&D Center of Polymer Materials, Qingdao Haiwan Science and Technology Industry Research Institute Co., Ltd. (HWSTI), Qingdao Haiwan Chemistry Co., Ltd. (QHCC), Qingdao, 266061, China
| | - Yanyi Xu
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Haichang Zhang
- Key Laboratory of Rubber-Plastics of Ministry of Education/Shandong Province (QUST), School of Polymer Science and Engineering, Qingdao University of Science and Technology, 53-Zhengzhou Road, Qingdao 266042, China
| |
Collapse
|
6
|
Fu J, Liu J, Li Y, Wang C, Shen J, Qi W. Gold nanoclusters with enhanced near-infrared emission and its application as sensors for biological molecules. Anal Chim Acta 2023; 1258:341172. [PMID: 37087293 DOI: 10.1016/j.aca.2023.341172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/03/2023] [Accepted: 04/02/2023] [Indexed: 04/08/2023]
Abstract
Ultrasmall gold nanoclusters (NCs) have been engineered as a new kind of functional material due to their excellent photoluminescence properties. However, the synthesis of highly luminescent water-soluble nanoclusters with near-infrared (NIR) emission remains limited. Herein, we developed a pH-regulated strategy to facilitate the construction of self-assemblies with enhanced luminescence based on aggregation-induced emission (AIE) strategy. Using 2-mercaptobenzoic acid (MBA) as reductant and stabilizer, the original weakly luminescent AuNCs exhibited intense emission by adjusting pH controllably. The formation of compact organized nanostructures could effectively restrict the rotation and vibration of capping ligands by non-covalent interactions, which reduced the nonradiative relaxation from excited states and finally improved the emission properties of AuNCs. Moreover, the assemblies possess many intriguing features including bright NIR luminescence and excellent biocompatibility, which could be used as luminous probes in biological molecules sensing (tyrosinase (TYR) and dopamine (DA)) and promising candidates for cell imaging. This study provides a simple and feasible strategy for developing metal NCs-based smart optical materials in the field of bioscience.
Collapse
|
7
|
Massarano T, Baruch Leshem A, Weitman M, Lampel A. Spatiotemporal Control of Melanin Synthesis in Liquid Droplets. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20520-20527. [PMID: 35451309 DOI: 10.1021/acsami.1c21006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Melanins are natural biopolymers that have remarkable properties including UV-protection, coloration, and antioxidant activity. Their biosynthesis is regulated both spatially and temporally and involves supramolecular templating and compartmentalization of enzymes and reactants within specialized organelles called melanosomes. In contrast, the laboratory-based bulk synthesis of melanin by tyrosine or dopamine oxidation is a poorly controlled process, resulting in materials with undefined properties. Inspired by the pigment's biosynthesis, we developed a methodology to spatiotemporally regulate melanin formation in liquid droplets. The spatial control is achieved by sequestration of the reaction in dextran-rich droplets of a polyethylene glycol/dextran aqueous two-phase system, where the use of a photocleavable protected tyrosine provides a temporal control over its enzymatic oxidation-polymerization. We show that the liquid droplets allow for confined local reactivity as they serve as reaction centers for melanin synthesis and compartmentalize the melanin product. This methodology opens tremendous opportunities for applications in skincare and biomedicine.
Collapse
Affiliation(s)
- Tlalit Massarano
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Avigail Baruch Leshem
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Michal Weitman
- Department of Chemistry, Bar -Ilan University, Ramat-Gan 5290002, Israel
| | - Ayala Lampel
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
- Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 69978, Israel
- Sagol Center for Regenerative Biotechnology, Tel Aviv University, Tel Aviv 69978, Israel
- Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 69978, Israel
| |
Collapse
|
8
|
Barros MR, da Silva LP, Menezes TM, Garcia YS, Neves JL. Efficient tyrosinase nano-inhibitor based on carbon dots behaving as a gathering of hydrophobic cores and key chemical group. Colloids Surf B Biointerfaces 2021; 207:112006. [PMID: 34343910 DOI: 10.1016/j.colsurfb.2021.112006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 07/19/2021] [Accepted: 07/22/2021] [Indexed: 10/20/2022]
Abstract
Small organic molecules have been extensively applied to achieve enzymatic inhibition. Although numerous efforts have been made to deliver efficient inhibitors, small inhibitors applications are hindered by many drawbacks. Moreover, reporters comprising nanoparticle inhibitory activity against enzymes are very scarce in the literature. In this scenario, carbon nanodots (CDs) emerge as promising candidates for efficient enzyme inhibition due to their unique properties. Here, CDs specific molecular characteristics (core composition and chemical surface groups) have been investigated to produce a more potent enzyme inhibition. Mushroom tyrosinase (mTyr) has been adopted as an enzymatic prototype. The CDs revealed a high affinity to mTyr (Ka ≈ 106 M-1), mainly through hydrophobic forces and followed by slight mTyr structural alteration. CDs competitively inhibit mTyr, with low inhibition constant (KI = 517.7 ± 17.0 nM), which is up 70 fold smaller then the commercial inhibitor (kojic acid) and the starch nanoparticles previously reported. The results expose that the CDs act as a hydrophobic agglomerate with carboxyl groups on its surface, mimicking characteristics found on small molecule inhibitors (but with superior performance). All these results highlight the CD excellent potential as an efficient low toxic Tyr inhibitor, opening the prospect of using these nanoparticles in the cosmetic and food industries.
Collapse
Affiliation(s)
- Marcela Rodrigues Barros
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil.
| | - Lucas Pereira da Silva
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil.
| | - Thais Meira Menezes
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil.
| | - Yarima Sanchez Garcia
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; Centro de estudos avanzados de Cuba, CEA, Valle Grande, La Lisa 17100, La Habana, Cuba.
| | - Jorge Luiz Neves
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil.
| |
Collapse
|
9
|
|
10
|
Sun Y, Lin T, Zeng C, Jiang G, Zhang X, Ye F, Zhao S. A self-correcting fluorescent assay of tyrosinase based on Fe-MIL-88B-NH 2 nanozyme. Mikrochim Acta 2021; 188:158. [PMID: 33825048 DOI: 10.1007/s00604-021-04808-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/23/2021] [Indexed: 10/21/2022]
Abstract
A self-correcting fluorescent assay of tyrosinase (TYR) was developed by utilization of Fe-MIL-88B-NH2 as a peroxidase-like nanozyme and a capture probe. Fe-MIL-88B-NH2 nanozyme was selected as an electron donor, and the oxidization product (dopamine-o-quinone) acts as an energy acceptor. First, TYR catalyzes the oxidation of tyramine hydrochloride to dopamine and then to dopamine-o-quinone. Second, Fe-MIL-88B-NH2 with intrinsic peroxidase-like activity decomposes H2O2 to produce ·OH radicals, which further accelerate the oxidation of dopamine to dopamine-o-quinone. Excessive H2O2 and ·OH radicals reduce the interferences from ascorbic acid at the same time providing a self-correcting ability. Dopamine-o-quinone reacts with -NH2 groups on the ligand of Fe-MIL-88B-NH2 through Michael reaction which results in fluorescence quenching. Under 365-nm excitation, the fluorescence emission intensity at 452 nm gradually decreased with increasing TYR concentration varying from 0 to 10 U mL-1. The linear range is from 1 to 5 U mL-1 and the detection limit is 0.05679 U mL-1. This self-correcting fluorescent assay of tyrosinase exhibits good sensitivity and selectivity which is also successfully applied for tyrosinase inhibitor detection. Schematic representation of fluorescent assay for tyrosinase determination based on Fe-MIL-88B-NH2 nanozyme. A self-correcting fluorescent assay for tyrosinase was developed based on the Fe-MIL-88B-NH2 nanozyme.
Collapse
Affiliation(s)
- Ying Sun
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, Guangxi, People's Republic of China
| | - Tianran Lin
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, Guangxi, People's Republic of China.
| | - Cuihong Zeng
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, Guangxi, People's Republic of China
| | - Gaoyan Jiang
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, Guangxi, People's Republic of China
| | - Xuanhan Zhang
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, Guangxi, People's Republic of China
| | - Fanggui Ye
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, Guangxi, People's Republic of China.
| | - Shulin Zhao
- School of Chemistry and Pharmaceutical Science, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, Guangxi, People's Republic of China
| |
Collapse
|
11
|
Chen C, Pang L, Wang R, Zou C, Ruan G, Sun Y, Zhang C, Yu H, Li L, Liu J. Fluorescence copolymer-based dual-signal monitoring tyrosinase activity and its inhibitor screening via blue-green emission transformation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:119028. [PMID: 33068897 DOI: 10.1016/j.saa.2020.119028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/26/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Tyrosinase (TYR) is a crucial enzyme in melanin metabolism and catecholamine production, its abnormal overexpression is closely associated with many human diseases involving melanoma cancer, vitiligo, Parkinson's disease and so on. Herein, a dual-signal fluorescence sensing system for monitoring TYR activity is constructed depending on the transformation of blue-green fluorescence emission of copolymer. The developed sensing system is based on TYR catalyzing the hydroxylation of mono-phenol to o-diphenol and the conversion of fluorescence copolymer (FCP) blue emission (430 nm) and green emission (535 nm) in the presence of PEI. In the system, both blue and green emission exhibit a high selectivity and sensitivity (S/B up to 300 and 30 for blue and green emission, respectively) toward TYR in the range from 0.5 to 2.5 U/mL with the detection limit of 0.002 U/mL and 0.06 U/mL, respectively. Additionally, this assay is used to detect TYR in human serum with excellent recovery even at 30% human serum concentrations. Furthermore, it still has been successfully applied to TYR inhibitor screening by taking kojic acid as a model. We believe that our developed sensor has great potential application in TYR-associated disease diagnosis and treatment and drug discovery.
Collapse
Affiliation(s)
- Can Chen
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lihua Pang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Rui Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Changpeng Zou
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Guotong Ruan
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yujie Sun
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Chengwu Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Haidong Yu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Jinhua Liu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| |
Collapse
|
12
|
Yuan Y, Hou W, Qin W, Wu C. Recent advances in semiconducting polymer dots as optical probes for biosensing. Biomater Sci 2021; 9:328-346. [DOI: 10.1039/d0bm01038c] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review mainly summarized the recent results that used bright polymer dots (Pdots) for the detection of different analytes such as reactive oxygen species (ROS), metal ions, pH values, and a variety of biomolecules.
Collapse
Affiliation(s)
- Ye Yuan
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Weiying Hou
- Department of Biomedical Engineering
- Southern University of Science and Technology
- Shenzhen
- China
| | - Weiping Qin
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Changfeng Wu
- Department of Biomedical Engineering
- Southern University of Science and Technology
- Shenzhen
- China
| |
Collapse
|
13
|
Zhang X, Zhou J, Gu Z, Zhang H, Gong Q, Luo K. Advances in nanomedicines for diagnosis of central nervous system disorders. Biomaterials 2020; 269:120492. [PMID: 33153757 DOI: 10.1016/j.biomaterials.2020.120492] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/18/2020] [Accepted: 10/23/2020] [Indexed: 02/08/2023]
Abstract
In spite of a great improvement in medical health services and an increase in lifespan, we have witnessed a skyrocket increase in the incidence of central nervous system (CNS) disorders including brain tumors, neurodegenerative diseases (Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease), ischemic stroke, and epilepsy, which have seriously undermined the quality of life and substantially increased economic and societal burdens. Development of diagnostic methods for CNS disorders is still in the early stage, and the clinical outcomes suggest these methods are not ready for the challenges associated with diagnosis of CNS disorders, such as early detection, specific binding, sharp contrast, and continuous monitoring of therapeutic interventions. Another challenge is to overcome various barrier structures during delivery of diagnostic agents, especially the blood-brain barrier (BBB). Fortunately, utilization of nanomaterials has been pursued as a potential and promising strategy to address these challenges. This review will discuss anatomical and functional structures of BBB and transport mechanisms of nanomaterials across the BBB, and special emphases will be placed on the state-of-the-art advances in the development of nanomedicines from a variety of nanomaterials for diagnosis of CNS disorders. Meanwhile, current challenges and future perspectives in this field are also highlighted.
Collapse
Affiliation(s)
- Xun Zhang
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jie Zhou
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhongwei Gu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, Claremont, CA, 91711, USA
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
| |
Collapse
|
14
|
Tian Y, Zhang Z, Gao N, Huang P, Wu FY. A label-free luminescent assay for tyrosinase activity monitoring and inhibitor screening with responsive lanthanide coordination polymer nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117751. [PMID: 31727517 DOI: 10.1016/j.saa.2019.117751] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 11/02/2019] [Accepted: 11/02/2019] [Indexed: 05/18/2023]
Abstract
In this work, a label-free, selective, and sensitive luminescent sensing platform was established for tyrosinase (TYR) activity monitoring and its inhibitor screening using one kind of lanthanide coordination polymer nanoparticles AMP-Tb/Ag+. By taking advantage of the specific binding and redox properties of Ag+ incorporated into the AMP-Tb network and dopamine (DA) as the product of the model substrate tyramine, the enzymatic reaction and the signal change of the sensing platform was effectively linked. The cooperative effect of a weakened energy transfer from AMP to Tb3+ by altering the electronic structure of Ag+ and an efficient photoinduced election transfer (PET) process caused by dopaquinone facilitated the luminescence quenching of Tb3+. Thus, this luminescent sensing platform could be employed for quantitative evaluation of TYR activity. There was a good linear range for TYR activity from 0.08 to 0.20 U mL-1 with a low detection limit of 0.004 U mL-1. Furthermore, this assay was successfully applied to accurate determination of TYR activity in human serum samples and efficient screening of TYR inhibitors. Considering unique spectral characteristics of lanthanides along with operation simplicity and superior analytical performance, this sensing platform is very promising in clinical diagnosis and drugs screening for TYR-associated diseases.
Collapse
Affiliation(s)
- Yao Tian
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Zhipeng Zhang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Nan Gao
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Pengcheng Huang
- College of Chemistry, Nanchang University, Nanchang 330031, China.
| | - Fang-Ying Wu
- College of Chemistry, Nanchang University, Nanchang 330031, China
| |
Collapse
|
15
|
A dual-channel ratiometric fluorescent probe for determination of the activity of tyrosinase using nitrogen-doped graphene quantum dots and dopamine-modified CdTe quantum dots. Mikrochim Acta 2019; 186:635. [DOI: 10.1007/s00604-019-3733-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 08/01/2019] [Indexed: 10/26/2022]
|
16
|
Algar WR, Jeen T, Massey M, Peveler WJ, Asselin J. Small Surface, Big Effects, and Big Challenges: Toward Understanding Enzymatic Activity at the Inorganic Nanoparticle-Substrate Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7067-7091. [PMID: 30415548 DOI: 10.1021/acs.langmuir.8b02733] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Enzymes are important biomarkers for molecular diagnostics and targets for the action of drugs. In turn, inorganic nanoparticles (NPs) are of interest as materials for biological assays, biosensors, cellular and in vivo imaging probes, and vectors for drug delivery and theranostics. So how does an enzyme interact with a NP, and what are the outcomes of multivalent conjugation of its substrate to a NP? This invited feature article addresses the current state of the art in answering this question. Using gold nanoparticles (Au NPs) and semiconductor quantum dots (QDs) as illustrative materials, we discuss aspects of enzyme structure-function and the properties of NP interfaces and surface chemistry that determine enzyme-NP interactions. These aspects render the substrate-on-NP configurations far more complex and heterogeneous than the conventional turnover of discrete substrate molecules in bulk solution. Special attention is also given to the limitations of a standard kinetic analysis of the enzymatic turnover of these configurations, the need for a well-defined model of turnover, and whether a "hopping" model can account for behaviors such as the apparent acceleration of enzyme activity. A detailed and predictive understanding of how enzymes turn over multivalent NP-substrate conjugates will require a convergence of many concepts and tools from biochemistry, materials, and interface science. In turn, this understanding will help to enable rational, optimized, and value-added designs of NP bioconjugates for biomedical and clinical applications.
Collapse
Affiliation(s)
- W Russ Algar
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , British Columbia V6T 1Z1 , Canada
| | - Tiffany Jeen
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , British Columbia V6T 1Z1 , Canada
| | - Melissa Massey
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , British Columbia V6T 1Z1 , Canada
| | - William J Peveler
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , British Columbia V6T 1Z1 , Canada
- Division of Biomedical Engineering, School of Engineering , University of Glasgow , Glasgow G12 8LT , United Kingdom
| | - Jérémie Asselin
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , British Columbia V6T 1Z1 , Canada
| |
Collapse
|
17
|
Liu M, Wei J, Wang Y, Ouyang H, Fu Z. Dopamine-functionalized upconversion nanoparticles as fluorescent sensors for organophosphorus pesticide analysis. Talanta 2019; 195:706-712. [DOI: 10.1016/j.talanta.2018.11.105] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/25/2018] [Accepted: 11/29/2018] [Indexed: 02/09/2023]
|
18
|
Li S, Hu R, Wang S, Guo X, Zeng Y, Li Y, Yang G. Specific Imaging of Tyrosinase in Vivo with 3-Hydroxybenzyl Caged D-Luciferins. Anal Chem 2018; 90:9296-9300. [PMID: 29943981 DOI: 10.1021/acs.analchem.8b01874] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Tyrosinase (TYR), a key enzyme in biosynthesis of melanin, usually functions as a biomarker of severe skin diseases such as vitiligo and melanoma cancer. Accurate detection of TYR activity in vivo is urgent but still challenging. Inspired by the advantages of bioluminescence in vivo strategy in imaging and the specific hydroxylation of 3-hydroxybenzyloxy group by TYR, a bioluminogenic probe, TYR-LH2, was designed and synthesized through caging D-luciferin with 3-hydroxybenzyl. The probe exhibits high selectivity and sensitivity toward TYR with a detection limit of 0.11 U/mL in a small detection volume of 100 μL. Bioluminescence imaging results show that TYR-LH2 is fully competent for monitoring the dynamic changes of TYR in living cells and model animals and possesses the capability of discriminating melanocytes from other cell lines, thus offering a promising approach for investigation and diagnosis of melanoma cancer and other TYR-related diseases in vivo.
Collapse
Affiliation(s)
- Shuang Li
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | | | | | | | - Yi Zeng
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yi Li
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Guoqiang Yang
- University of Chinese Academy of Sciences , Beijing 100049 , China
| |
Collapse
|
19
|
Peng M, Wang Y, Fu Q, Sun F, Na N, Ouyang J. Melanosome-Targeting Near-Infrared Fluorescent Probe with Large Stokes Shift for in Situ Quantification of Tyrosinase Activity and Assessing Drug Effects on Differently Invasive Melanoma Cells. Anal Chem 2018; 90:6206-6213. [PMID: 29696968 DOI: 10.1021/acs.analchem.8b00734] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Tyrosinase (TYR) plays a vital role in melanin biosynthesis and is widely regarded as a relatively specific marker for melanocytic lesions which involve vitiligo, malignant cutaneous melanoma, Parkinson's disease (PD), etc. However, the detection of TYR in living cells with fluorescent probes is usually interfered by diverse endogenous reactive oxygen species (ROS) and reactive nitrogen species (RNS). Herein, we synthesized a melanosome-targeting near-infrared (NIR) fluorescent probe (HB-NP) with a large Stokes shift (195 nm), achieving a highly sensitive and selective in situ detection for intracellular TYR, by incorporating a m-hydroxybenzyl moiety that recognizes TYR specifically and the morpholine unit which facilitates the probe accumulating in the melanosome into a salicyladazine skeleton. When treated with TYR, the probe itself with weak fluorescence is lit up via an inhibited photoinduced electron-transfer (PET) effect and HB-NP shows a strong fluorescence signal (nearly 48-fold enhancement) with a low detection limit of 0.5 U mL-1. HB-NP has been successfully applied in visualizing and in situ quantification of the intracellular TYR activity. Moreover, owing to the different expression levels of TYR, two human uveal melanoma cells with different invasive behaviors are distinguished by means of bioimaging and the effects of the inhibitor, kojic acid, and the up-regulating treatment, psoralen/ultraviolet A, on TYR activity of the two melanoma cells are evaluated. HB-NP is expected to be a useful tool to monitor diseases associated with the abnormal level of melanin and screen medicines for TYR disorder more effectively.
Collapse
Affiliation(s)
- Manshu Peng
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Yan Wang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Qiang Fu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Feifei Sun
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Na Na
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Jin Ouyang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| |
Collapse
|
20
|
A novel fluorescence biosensor for sensitivity detection of tyrosinase and acid phosphatase based on nitrogen-doped graphene quantum dots. Anal Chim Acta 2018; 997:52-59. [DOI: 10.1016/j.aca.2017.10.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/29/2017] [Accepted: 10/05/2017] [Indexed: 01/20/2023]
|
21
|
Sidhu JS, Singh N. FRET and PET paired dual mechanistic carbon dots approach for tyrosinase sensing. J Mater Chem B 2018; 6:4139-4145. [DOI: 10.1039/c8tb00512e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In the presence of tyrosinase, the probe shows a ratiometric fluorescence response owing to a dual mechanistic FRET and PET approach.
Collapse
Affiliation(s)
| | - Narinder Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| |
Collapse
|
22
|
Mao G, Du M, Wang X, Ji X, He Z. Simple construction of ratiometric fluorescent probe for the detection of dopamine and tyrosinase by the naked eye. Analyst 2018; 143:5295-5301. [DOI: 10.1039/c8an01640b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A simple and effective method for constructing a ratiometric fluorescent probe for the detection of dopamine and tyrosinase was developed.
Collapse
Affiliation(s)
- Guobin Mao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Mingyuan Du
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Xinxin Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Xinghu Ji
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Zhike He
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| |
Collapse
|
23
|
Hu JJ, Bai XL, Liu YM, Liao X. Functionalized carbon quantum dots with dopamine for tyrosinase activity analysis. Anal Chim Acta 2017; 995:99-105. [DOI: 10.1016/j.aca.2017.09.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 09/17/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
|
24
|
Petryayeva E, Jeen T, Algar WR. Optimization and Changes in the Mode of Proteolytic Turnover of Quantum Dot-Peptide Substrate Conjugates through Moderation of Interfacial Adsorption. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30359-30372. [PMID: 28846381 DOI: 10.1021/acsami.7b07519] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Enzymes have many important roles in biology and industry, and proteases are one of the most important classes of enzymes. Semiconductor quantum dots (QDs) are attractive materials for developing protease activity probes because of their advantageous physical and optical properties; however, interactions between a protease and a QD conjugated with its substrate can affect the turnover of that substrate. Here, we study the turnover of multivalent QD-peptide substrate conjugates as a function of multiple parameters: (i) the ligand coating on the QD, including dihydrolipoic acid (DHLA), glutathione (GSH), DHLA-poly(ethylene glycol) (DHLA-PEG), and DHLA-zwitterionic sulfobetaine (DHLA-SB); (ii) the identity of the protease, including trypsin, thrombin, and plasmin; and (iii) the number of substrate and nonsubstrate biomacromolecules conjugated per QD. We show that limiting protease adsorption on QDs is critical for optimizing the turnover of conjugated peptide substrates. Protease adsorption is inhibitory, and very strong adsorption leads to an apparent "scooting" mode of activity with limited turnover. In contrast, with weaker adsorption, enhancements in the turnover rate likely result from a "hopping" mode of activity. The putative hopping mode is thought to feature processive turnover of all substrates in multivalent conjugates with a rate-limiting step of diffusion between individual conjugates, and the magnitude of such enhancements increases with decreases in adsorption. Although it was possible to passivate DHLA- and GSH-coated QDs with high densities of conjugated biomacromolecules, the most effective strategy for reducing adsorption was the substitution of these ligands. Whereas passivation incrementally increased turnover, DHLA-PEG and DHLA-SB ligands converted the mode of turnover with plasmin from scooting to hopping and the DHLA-SB enhanced the turnover rates with thrombin and trypsin by approximately an order of magnitude relative to GSH ligands. The new insights from the broad scope of this study provide an important framework for designing optimized QD conjugates as probes and sensors for enzyme activity.
Collapse
Affiliation(s)
- Eleonora Petryayeva
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Tiffany Jeen
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - W Russ Algar
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| |
Collapse
|
25
|
Lei C, Zhao XE, Sun J, Yan X, Gao Y, Gao H, Zhu S, Wang H. A simple and novel colorimetric assay for tyrosinase and inhibitor screening using 3,3',5,5'-tetramethylbenzidine as a chromogenic probe. Talanta 2017; 175:457-462. [PMID: 28842016 DOI: 10.1016/j.talanta.2017.07.070] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/13/2017] [Accepted: 07/23/2017] [Indexed: 01/20/2023]
Abstract
A novel colorimetric method for the detection of tyrosinase (TYR) and its inhibitor by taking utilization of Ag+-3,3',5,5'-tetramethylbenzidine (TMB) detection system has been proposed. Ag+ could oxidize TMB to oxidized TMB (oxTMB) and induce a blue color solution corresponding to an absorption peak centered at 652nm. The addition of dopamine (DA) could cause the reduction of oxTMB which resulted in the fading of the blue color and a decrease of the absorbance at 652nm. However, in the presence of TYR, DA could be oxidized to dopaquinone, which inhibited the reduction of oxTMB by DA, resulting in a blue color recovery and an increase of the absorbance at 652nm. Based on this finding, we propose a method to quantitatively detect TYR activity with the help of UV-vis spectroscopy. The developed assay is highly sensitive with a low detection limit of 0.010U/mL. More importantly, this method is fairly simple and inexpensive without the use of complicated nanomaterials. In addition, it constructs a useful platform for TYR inhibitor screening.
Collapse
Affiliation(s)
- Cuihua Lei
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Xian-En Zhao
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China; Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining City, Qinghai Province 810001, China.
| | - Jing Sun
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining City, Qinghai Province 810001, China
| | - Xiaolu Yan
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Yue Gao
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Han Gao
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Shuyun Zhu
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China; Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining City, Qinghai Province 810001, China.
| | - Hua Wang
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China.
| |
Collapse
|
26
|
Zhu X, Lin H, Wang L, Tang X, Ma L, Chen Z, Gao J. Activatable T 1 Relaxivity Recovery Nanoconjugates for Kinetic and Sensitive Analysis of Matrix Metalloprotease 2. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21688-21696. [PMID: 28603956 DOI: 10.1021/acsami.7b05389] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Sensitive detection of matrix metalloproteinase 2 (MMP-2, an important cancer marker associated with tumor invasion and metastasis) activity in vitro and at cellular level is of great significance to clinical diagnosis and medical treatment. With unique physical properties, nanoparticles are emerging as a platform for the construction of conjugates of various biological molecules, which can be expected to generate new types of biosensors. In this work, Fe3O4 NPs were modified with Gd chelates via linking peptides to construct NP-substrate (Fe3O4-pep-Gd) conjugates for kinetic MMP-2 activity assessment in vitro at the cellular level and in vivo. Superparamagnetic Fe3O4 quenched the longitudinal relaxation effect (T1 relaxivity) of the attached Gd chelates by perturbing proton relaxation process under an external magnetic field. MMP-2 cleaved the peptide substrates and released Gd chelates from the local magnetic fields accompanied by T1 relaxivity recovery and T1 contrast enhancement. Benefiting from signal amplification through binding multiple Gd chelates to one linking peptide, Fe3O4-pep-Gd conjugates exhibited high sensitivity for the detection of MMP-2 (as low as 0.5 nM). Enzymatic processes were in good agreement with the integrated Michaelis-Menten model, revealing an unexpected activity enhancement in the initial stage. Fe3O4-pep-Gd conjugates could also probe MMP-2 at cellular level and in vivo that indicates a great promise in in vitro diagnosis (IVD) and disease monitoring.
Collapse
Affiliation(s)
- Xianglong Zhu
- College of Chemistry and Chemical Engineering, Xinyang Normal University , Xinyang, Henan 464000, China
| | | | | | | | | | | | | |
Collapse
|
27
|
Yan X, Li H, Hu T, Su X. A novel fluorimetric sensing platform for highly sensitive detection of organophosphorus pesticides by using egg white-encapsulated gold nanoclusters. Biosens Bioelectron 2017; 91:232-237. [DOI: 10.1016/j.bios.2016.11.058] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 11/15/2016] [Accepted: 11/24/2016] [Indexed: 01/27/2023]
|
28
|
Wang J, Lee TS, Zhang Z, Tung CH. A Bioluminogenic Probe for Monitoring Tyrosinase Activity. Chem Asian J 2017; 12:397-400. [PMID: 28052521 DOI: 10.1002/asia.201601659] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 12/29/2016] [Indexed: 11/10/2022]
Abstract
A bioluminogenic probe based on luciferin was designed and synthesized to monitor tyrosinase activity. This probe was efficient in assessing tyrosinase activity in a buffered aqueous solution and in measuring endogenous tyrosinase activity in melanoma cells.
Collapse
Affiliation(s)
- Jianguang Wang
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, 413 East 69th Street, New York, NY, 10065, USA.,Current address: School of Chemical and Environmental Engineering, Anyang Institute of Technology, West of HuangHe Road, Anyang, 455000, PR China
| | - Tae Sup Lee
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, 413 East 69th Street, New York, NY, 10065, USA.,Current address: Division of RI-Convergence Research, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul, 01812, Republic of Korea
| | - Zhe Zhang
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, 413 East 69th Street, New York, NY, 10065, USA
| | - Ching-Hsuan Tung
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, 413 East 69th Street, New York, NY, 10065, USA
| |
Collapse
|
29
|
Ao H, Qian Z, Zhu Y, Zhao M, Tang C, Huang Y, Feng H, Wang A. A fluorometric biosensor based on functional Au/Ag nanoclusters for real-time monitoring of tyrosinase activity. Biosens Bioelectron 2016; 86:542-547. [DOI: 10.1016/j.bios.2016.07.051] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/14/2016] [Accepted: 07/15/2016] [Indexed: 10/21/2022]
|
30
|
Wu X, Li L, Shi W, Gong Q, Ma H. Near-Infrared Fluorescent Probe with New Recognition Moiety for Specific Detection of Tyrosinase Activity: Design, Synthesis, and Application in Living Cells and Zebrafish. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609895] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaofeng Wu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Lihong Li
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Wen Shi
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Qiuyu Gong
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Huimin Ma
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| |
Collapse
|
31
|
Wu X, Li L, Shi W, Gong Q, Ma H. Near‐Infrared Fluorescent Probe with New Recognition Moiety for Specific Detection of Tyrosinase Activity: Design, Synthesis, and Application in Living Cells and Zebrafish. Angew Chem Int Ed Engl 2016; 55:14728-14732. [DOI: 10.1002/anie.201609895] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Xiaofeng Wu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of the Chinese Academy of Sciences Beijing 100049 China
| | - Lihong Li
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Wen Shi
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Qiuyu Gong
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Huimin Ma
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of the Chinese Academy of Sciences Beijing 100049 China
| |
Collapse
|
32
|
Xiao-Feng L, Wen-Ting Z, Yuan-Yuan X, Chong-Fa L, Lu Z, Jin-Jun R, Wen-Ya W. Protective role of 6-Hydroxy-1-H-Indazole in an MPTP-induced mouse model of Parkinson's disease. Eur J Pharmacol 2016; 791:348-354. [PMID: 27614126 DOI: 10.1016/j.ejphar.2016.08.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 08/06/2016] [Accepted: 08/11/2016] [Indexed: 12/19/2022]
Abstract
This study aimed to explore the neuroprotective role of 6-hydroxy-1H-indazole on dopaminergic neurons in a 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP) mouse model of Parkinson's disease (PD). Forty 12-week-old C57BL/6 male mice were were randomized divided into 4 groups. Mice were treated with 2mg/kg and 4mg/kg 6-hydroxy-1H-indazole (i.p.) 1d before the initiation of MPTP administration (30mg/kg), and the 6-hydroxy-1H-indazole were daily injected half an hour before MPTP treatment in the following 5 days. The MPTP group was given normal saline on day 1 (i.p.), followed by 30mg/kg MPTP treatment in the following 5 days. Control group received an equivalent volume of normal saline. Ten days after the final injection of MPTP, the mice were killed. The results showed that MPTP decreased the dopaminergic neurons in the substantia nigra and dopamine in the striatum, downregulated the expression of tyrosine hydroxylase (TH), induced the impairment of behavior and hyperphosphorylation of tau, However, 6-hydroxy-1-H-indazole decreased the loss of dopaminergic neurons, increased dopamine concentration and TH expression, alleviated the behavioral damage and level of phosphor-tau in the MPTP-induced model of PD in C57BL/6 mice. These findings showed that 6-hydroxy-1-H-indazole-mediated neuroprotection was related to the inactivation of tau. In addition, 6-hydroxy-1-H-indazole may be a potential drug candidate for PD.
Collapse
Affiliation(s)
- Liang Xiao-Feng
- School of Pharmaceutical Sciences, Southern Medical University, China
| | - Zhu Wen-Ting
- School of Pharmaceutical Sciences, Southern Medical University, China
| | - Xu Yuan-Yuan
- School of Pharmaceutical Sciences, Southern Medical University, China
| | - Lai Chong-Fa
- School of Pharmaceutical Sciences, Southern Medical University, China
| | - Zheng Lu
- School of Humanity and Management, Southern Medical University, China
| | - Rao Jin-Jun
- School of Pharmaceutical Sciences, Southern Medical University, China.
| | - Wang Wen-Ya
- School of Pharmaceutical Sciences, Southern Medical University, China.
| |
Collapse
|
33
|
Sun J, Mei H, Wang S, Gao F. Two-Photon Semiconducting Polymer Dots with Dual-Emission for Ratiometric Fluorescent Sensing and Bioimaging of Tyrosinase Activity. Anal Chem 2016; 88:7372-7. [DOI: 10.1021/acs.analchem.6b01929] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Junyong Sun
- Laboratory of Functionalized
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing,
Laboratory of Optical Probes and Bioelectrocatalysis (LOPAB), College
of Chemistry and Materials Science, Anhui Normal University, Wuhu,
Anhui 241000, P. R. China
| | - Han Mei
- Laboratory of Functionalized
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing,
Laboratory of Optical Probes and Bioelectrocatalysis (LOPAB), College
of Chemistry and Materials Science, Anhui Normal University, Wuhu,
Anhui 241000, P. R. China
| | - Sufan Wang
- Laboratory of Functionalized
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing,
Laboratory of Optical Probes and Bioelectrocatalysis (LOPAB), College
of Chemistry and Materials Science, Anhui Normal University, Wuhu,
Anhui 241000, P. R. China
| | - Feng Gao
- Laboratory of Functionalized
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing,
Laboratory of Optical Probes and Bioelectrocatalysis (LOPAB), College
of Chemistry and Materials Science, Anhui Normal University, Wuhu,
Anhui 241000, P. R. China
| |
Collapse
|
34
|
Near-infrared fluorescence nanoprobe for enzyme-substrate system sensing and in vitro imaging. Biosens Bioelectron 2016; 79:922-9. [DOI: 10.1016/j.bios.2016.01.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 12/21/2015] [Accepted: 01/02/2016] [Indexed: 11/21/2022]
|
35
|
Zhang WH, Ma W, Long YT. Redox-Mediated Indirect Fluorescence Immunoassay for the Detection of Disease Biomarkers Using Dopamine-Functionalized Quantum Dots. Anal Chem 2016; 88:5131-6. [DOI: 10.1021/acs.analchem.6b00048] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Wen-Hui Zhang
- Key Laboratory for Advanced
Materials and Department of Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Wei Ma
- Key Laboratory for Advanced
Materials and Department of Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Yi-Tao Long
- Key Laboratory for Advanced
Materials and Department of Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| |
Collapse
|
36
|
Zhou J, Shi W, Li L, Gong Q, Wu X, Li X, Ma H. Detection of Misdistribution of Tyrosinase from Melanosomes to Lysosomes and Its Upregulation under Psoralen/Ultraviolet A with a Melanosome-Targeting Tyrosinase Fluorescent Probe. Anal Chem 2016; 88:4557-64. [DOI: 10.1021/acs.analchem.6b00742] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jin Zhou
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wen Shi
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Lihong Li
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qiuyu Gong
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaofeng Wu
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaohua Li
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Huimin Ma
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|
37
|
Díaz S, Breger J, Medintz I. Monitoring Enzymatic Proteolysis Using Either Enzyme- or Substrate-Bioconjugated Quantum Dots. Methods Enzymol 2016; 571:19-54. [DOI: 10.1016/bs.mie.2016.01.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
38
|
Chai L, Zhou J, Feng H, Tang C, Huang Y, Qian Z. Functionalized Carbon Quantum Dots with Dopamine for Tyrosinase Activity Monitoring and Inhibitor Screening: In Vitro and Intracellular Investigation. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23564-23574. [PMID: 26440479 DOI: 10.1021/acsami.5b06711] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Sensitive assay of tyrosinase (TYR) activity is in urgent demand for both fundamental research and practical application, but the exploration of functional materials with good biocompatibility for its activity evaluation at the intracellular level is still challenging until now. In this work, we develop a convenient and real-time assay with high sensitivity for TYR activity/level monitoring and its inhibitor screening based on biocompatible dopamine functionalized carbon quantum dots (Dopa-CQDs). Dopamine with redox property was functionalized on the surface of carbon quantum dots to construct a Dopa-CQDs conjugate with strong bluish green fluorescence. When the dopamine moiety in Dopa-CQDs conjugate was oxidized to a dopaquinone derivative under specific catalysis of TYR, an intraparticle photoinduced electron transfer (PET) process between CQDs and dopaquinone moiety took place, and then the fluorescence of the conjugate could be quenched simultaneously. Quantitative evaluation of TYR activity was established in terms of the relationship between fluorescence quenching efficiency and TYR activity. The assay covered a broad linear range of up to 800 U/L with a low detection limit of 7.0 U/L. Arbutin, a typical inhibitor of TYR, was chosen as an example to assess its function of inhibitor screening, and positive results were observed that fluorescence quenching extent of the probe was reduced in the presence of arbutin. It is also demonstrated that Dopa-CQD conjugate possesses excellent biocompatibility, and can sensitively monitor intracellular tyrosinase level in melanoma cells and intracellular pH changes in living cells, which provides great potential in application of TYR/pH-associated disease monitoring and medical diagnostics.
Collapse
Affiliation(s)
- Lujing Chai
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| | - Jin Zhou
- Beijing National laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences , Bejing 100190, China
| | - Hui Feng
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| | - Cong Tang
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| | - Yuanyuan Huang
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| | - Zhaosheng Qian
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| |
Collapse
|
39
|
Hu YH, Zhuang JX, Yu F, Cui Y, Yu WW, Yan CL, Chen QX. Inhibitory effects of cefotaxime on the activity of mushroom tyrosinase. J Biosci Bioeng 2015; 121:385-9. [PMID: 26342770 DOI: 10.1016/j.jbiosc.2015.08.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 07/28/2015] [Accepted: 08/07/2015] [Indexed: 01/13/2023]
Abstract
Tyrosinase (EC 1.14.18.1) catalyzes both the hydroxylation of tyrosine into o-diphenols and the oxidation of o-diphenols into o-quinones that form brown or black pigments. In the present paper, cefotaxime, a cephalosporin antibacterial drug, was tested as an inhibitor of tyrosinase. The results show that cefotaxime inhibits both the monophenolase and diphenolase activities of tyrosinase. For the monophenolase activity, cefotaxime increased the lag time and decreased the steady-state activity with an IC50 of 3.2 mM. For the diphenolase activity, the inhibition by cefotaxime is reversible and mix-I type with an IC50 of 0.14 mM. The inhibition constants (K(I) and K(IS)) were determined to be 0.14 and 0.36 mM, respectively. The molecular mechanism of inhibition of tyrosinase by cefotaxime was determined by fluorescence quenching and molecular docking. The results demonstrated that cefotaxime was a static quencher of tyrosinase and that cefotaxime could dock favorably in the active site of tyrosinase. This research may offer a lead for designing and synthesizing novel and effective tyrosinase inhibitors in the future.
Collapse
Affiliation(s)
- Yong-Hua Hu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Jiang-Xing Zhuang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, College of Medicine, Xiamen University, Xiamen 361102, China
| | - Feng Yu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Yi Cui
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Wen-Wen Yu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Chong-Ling Yan
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Qing-Xi Chen
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China; Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, China.
| |
Collapse
|
40
|
Zhu X, Chi X, Chen J, Wang L, Wang X, Chen Z, Gao J. Real-Time Monitoring in Vivo Behaviors of Theranostic Nanoparticles by Contrast-Enhanced T1 Imaging. Anal Chem 2015; 87:8941-8. [DOI: 10.1021/acs.analchem.5b02095] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xianglong Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Xiaoqin Chi
- Fujian
Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular
Carcinoma, Zhongshan Hospital, Xiamen University, Xiamen, Fujian 361004, China
| | - Jiahe Chen
- Department
of Electronic Science and Fujian Key Laboratory of Plasma and Magnetic
Resonance, Xiamen University, Xiamen, Fujian 361005, China
| | - Lirong Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Xiaomin Wang
- Fujian
Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular
Carcinoma, Zhongshan Hospital, Xiamen University, Xiamen, Fujian 361004, China
| | - Zhong Chen
- Department
of Electronic Science and Fujian Key Laboratory of Plasma and Magnetic
Resonance, Xiamen University, Xiamen, Fujian 361005, China
| | - Jinhao Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| |
Collapse
|
41
|
Yan X, Li H, Zheng W, Su X. Visual and Fluorescent Detection of Tyrosinase Activity by Using a Dual-Emission Ratiometric Fluorescence Probe. Anal Chem 2015; 87:8904-9. [DOI: 10.1021/acs.analchem.5b02037] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xu Yan
- Department
of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Hongxia Li
- School
of Pharmacy, Jilin University, Changchun 130021, P.R. China
| | - Weishi Zheng
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, P.R. China
| | - Xingguang Su
- Department
of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| |
Collapse
|
42
|
Ma W, Liu HT, Long YT. Monitoring Dopamine Quinone-Induced Dopaminergic Neurotoxicity Using Dopamine Functionalized Quantum Dots. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14352-14358. [PMID: 26070031 DOI: 10.1021/acsami.5b03044] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Dopamine (DA) quinone-induced dopaminergic neurotoxicity is known to occur due to the interaction between DA quinone and cysteine (Cys) residue, and it may play an important a role in pathological processes associated with neurodegeneration. In this study, we monitored the interaction process of DA to form DA quinone and the subsequent Cys residue using dopamine functionalized quantum dots (QDs). The fluorescence (FL) of the QD bioconjugates changes as a function of the structure transformation during the interaction process, providing a potential FL tool for monitoring dopaminergic neurotoxicity.
Collapse
|