1
|
Yan J, Liu H, Wu Y, Niu B, Deng X, Zhang L, Dang Q, Wang Y, Lu X, Zhang B, Sun W. Recent progress of self-immobilizing and self-precipitating molecular fluorescent probes for higher-spatial-resolution imaging. Biomaterials 2023; 301:122281. [PMID: 37643487 DOI: 10.1016/j.biomaterials.2023.122281] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/12/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
Flourished in the past two decades, fluorescent probe technology provides researchers with accurate and efficient tools for in situ imaging of biomarkers in living cells and tissues and may play a significant role in clinical diagnosis and treatment such as biomarker detection, fluorescence imaging-guided surgery, and photothermal/photodynamic therapy. In situ imaging of biomarkers depends on the spatial resolution of molecular probes. Nevertheless, the majority of currently available molecular fluorescent probes suffer from the drawback of diffusing from the target region. This leads to a rapid attenuation of the fluorescent signal over time and a reduction in spatial resolution. Consequently, the diffused fluorescent signal cannot accurately reflect the in situ information of the target. Self-immobilizing and self-precipitating molecular fluorescent probes can be used to overcome this problem. These probes ensure that the fluorescent signal remains at the location where the signal is generated for a long time. In this review, we introduce the development history of the two types of probes and classify them in detail according to different design strategies. In addition, we compare their advantages and disadvantages, summarize some representative studies conducted in recent years, and propose prospects for this field.
Collapse
Affiliation(s)
- Jiawei Yan
- College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China
| | - Huanying Liu
- School of Mechanical and Power Engineering, Dalian Ocean University, Dalian, 116023, China
| | - Yingxu Wu
- College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China
| | - Ben Niu
- College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China
| | - Xiaojing Deng
- College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China
| | - Linhao Zhang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Qi Dang
- College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China
| | - Yubo Wang
- College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China
| | - Xiao Lu
- College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China
| | - Boyu Zhang
- College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China.
| | - Wen Sun
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, 116024, China.
| |
Collapse
|
2
|
Li Z, Liang PZ, Ren TB, Yuan L, Zhang XB. Orderly Self-Assembly of Organic Fluorophores for Sensing and Imaging. Angew Chem Int Ed Engl 2023; 62:e202305742. [PMID: 37219959 DOI: 10.1002/anie.202305742] [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: 04/24/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 05/25/2023]
Abstract
Fluorescence imaging utilizing traditional organic fluorophores is extensively applied in both cellular and in vivo studies. However, it faces significant obstacles, such as low signal-to-background ratio (SBR) and spurious positive/negative signals, primarily due to the facile diffusion of these fluorophores. To cope with this challenge, orderly self-assembled functionalized organic fluorophores have gained significant attention in the past decades. These fluorophores can create nanoaggregates via a well-ordered self-assembly process, thus prolonging their residency time within cells and in vivo settings. The development of self-assembled-based fluorophores is an emerging field, and as such, in this review, we present a summary of the progress and challenges of self-assembly fluorophores, focusing on their development history, self-assembly mechanisms, and biomedical applications. We hope that the insights provided herein will assist scientists in further developing functionalized organic fluorophores for in situ imaging, sensing, and therapy.
Collapse
Affiliation(s)
- Zhe Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Ping-Zhao Liang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Tian-Bing Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| |
Collapse
|
3
|
Song Z, Fan C, Zhao J, Wang L, Duan D, Shen T, Li X. Fluorescent Probes for Mammalian Thioredoxin Reductase: Mechanistic Analysis, Construction Strategies, and Future Perspectives. BIOSENSORS 2023; 13:811. [PMID: 37622897 PMCID: PMC10452626 DOI: 10.3390/bios13080811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/06/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023]
Abstract
The modulation of numerous signaling pathways is orchestrated by redox regulation of cellular environments. Maintaining dynamic redox homeostasis is of utmost importance for human health, given the common occurrence of altered redox status in various pathological conditions. The cardinal component of the thioredoxin system, mammalian thioredoxin reductase (TrxR) plays a vital role in supporting various physiological functions; however, its malfunction, disrupting redox balance, is intimately associated with the pathogenesis of multiple diseases. Accordingly, the dynamic monitoring of TrxR of live organisms represents a powerful direction to facilitate the comprehensive understanding and exploration of the profound significance of redox biology in cellular processes. A number of classic assays have been developed for the determination of TrxR activity in biological samples, yet their application is constrained when exploring the real-time dynamics of TrxR activity in live organisms. Fluorescent probes offer several advantages for in situ imaging and the quantification of biological targets, such as non-destructiveness, real-time analysis, and high spatiotemporal resolution. These benefits facilitate the transition from a poise to a flux understanding of cellular targets, further advancing scientific studies in related fields. This review aims to introduce the progress in the development and application of TrxR fluorescent probes in the past years, and it mainly focuses on analyzing their reaction mechanisms, construction strategies, and potential drawbacks. Finally, this study discusses the critical challenges and issues encountered during the development of selective TrxR probes and proposes future directions for their advancement. We anticipate the comprehensive analysis of the present TrxR probes will offer some glitters of enlightenment, and we also expect that this review may shed light on the design and development of novel TrxR probes.
Collapse
Affiliation(s)
- Zilong Song
- Natural Medicine Research & Development Center, Lanzhou Jiaotong University, Lanzhou 730070, China; (Z.S.); (C.F.); (L.W.)
| | - Chengwu Fan
- Natural Medicine Research & Development Center, Lanzhou Jiaotong University, Lanzhou 730070, China; (Z.S.); (C.F.); (L.W.)
| | - Jintao Zhao
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China; (J.Z.); (X.L.)
| | - Lei Wang
- Natural Medicine Research & Development Center, Lanzhou Jiaotong University, Lanzhou 730070, China; (Z.S.); (C.F.); (L.W.)
| | - Dongzhu Duan
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China;
| | - Tong Shen
- Natural Medicine Research & Development Center, Lanzhou Jiaotong University, Lanzhou 730070, China; (Z.S.); (C.F.); (L.W.)
| | - Xinming Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China; (J.Z.); (X.L.)
| |
Collapse
|
4
|
Li J, Pu R, He X, Chen Q, Liu S, Liu W, Li J. A Precipitation-Enhanced Emission (PEE) Strategy for Increasing the Brightness and Reducing the Liver Retention of NIR-II Fluorophores. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204153. [PMID: 36209389 DOI: 10.1002/smll.202204153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/26/2022] [Indexed: 06/16/2023]
Abstract
The lack of organic fluorophores with high quantum yields (QYs) and low liver retention in the second near-infrared (NIR-II) window has become a bottleneck in the bioimaging field. An approach to address these problems is proposed by encapsulating phosphorylated fluorescent dyes into biodegradable calcium phosphate nanoparticles. First, an NIR-II molecule, LJ-2P, is designed with increased water solubility by introducing two phosphate groups. Meanwhile, LJ-2P co-precipitates with calcium ions to form LJ-2P nanoparticles (NPs). The QYs of LJ-2P NPs in aqueous solution is increased by 36.57-fold to 5.12% compared with that of LJ-2P. This unique phenomenon is named as precipitation-enhanced emission (PEE), whose detailed mechanism is explored by femtosecond transient absorption. It is demonstrated that co-precipitation of LJ-2P with calcium ions changes the micro-environment, which restricts the molecular rotation and reduces the interaction of water molecules, especially the excited-state proton transfer. In addition, due to the pH-sensitive nature, more than 80% of the LJ-2P NPs are metabolized in the liver within 24 h. Based on the excellent optical properties and good biocompatibility, high-contrast vascular visualization and breast tumor detecting are achieved. This strategy can apply to other NIR-II fluorophores to achieve high QYs and low liver retention.
Collapse
Affiliation(s)
- Jinwei Li
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Ruihua Pu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Xiaoyan He
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Qimingxing Chen
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Suhong Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Weimin Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Jianfeng Li
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| |
Collapse
|
5
|
Lou X, Ren TB, Chen H, Huan SY, Yuan L, Zhang XB. High-fidelity imaging of lysosomal enzyme through in situ ordered assembly of small molecular fluorescent probes. Biomaterials 2022; 287:121657. [PMID: 35853360 DOI: 10.1016/j.biomaterials.2022.121657] [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: 03/18/2022] [Revised: 06/21/2022] [Accepted: 06/24/2022] [Indexed: 11/27/2022]
Abstract
As an organelle in cells, lysosomes play an important role in the degradation of biological macromolecules and pathogens. To elucidate the function of lysosomes in normal or disease states, recently, various fluorescent probes have been reported for imaging lysosomal analytes. However, because of the particularity of the lysosomal environment, most of the reported lysosomal fluorescent probes suffered from a series of practical issues such as easy diffusion, low detection signal-to-background ratio and false signal. To address these issues, based on an optimized in situ ordered assembly solid-state fluorophore HDPQ, we herein put forward a new strategy for the design of lysosomal enzymes probes. As a proof concept, we synthesized a fluorescent probe HDPQ-GLU for lysosomal enzyme β-glucuronidase (GLU). Experiment results displayed that compared with general lysosomal probe, the novel lysosomal probe not only exhibited excellent anti-pH interference ability and high signal-to-noise ratio in aqueous solution, but also has excellent long-term in situ imaging ability in the living system. Using this probe, we have realized high-fidelity and long-term in situ tracking GLU in lysosomes of living cells and evaluated the dynamic changes of GLU during the growth period of zebrafish. We anticipate that the new strategy based on the novel in situ ordered assembly solid-state fluorophore HDPQ may be a potential platform for developing fluorescent probes for high-fidelity imaging of lysosomal enzymes.
Collapse
Affiliation(s)
- Xiaofeng Lou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Tian-Bing Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China.
| | - Haoming Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Shuang-Yan Huan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China.
| |
Collapse
|
6
|
Zeisel L, Felber JG, Scholzen KC, Poczka L, Cheff D, Maier MS, Cheng Q, Shen M, Hall MD, Arnér ES, Thorn-Seshold J, Thorn-Seshold O. Selective cellular probes for mammalian thioredoxin reductase TrxR1: Rational design of RX1, a modular 1,2-thiaselenane redox probe. Chem 2022; 8:1493-1517. [PMID: 35936029 PMCID: PMC9351623 DOI: 10.1016/j.chempr.2022.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Quantifying the activity of key cellular redox players is crucial for understanding physiological homeostasis, and for targeting their perturbed states in pathologies including cancer and inflammatory diseases. However, cellularly-selective probes for oxidoreductase turnover are sorely lacking. We rationally developed the first probes that selectively target the mammalian selenoprotein thioredoxin reductase (TrxR), using a cyclic selenenylsulfide oriented to harness TrxR's unique selenolthiol chemistry while resisting the cellular monothiol background. Lead probe RX1 had excellent TrxR1-selective performance in cells, cross-validated by knockout, selenium starvation, knock-in, and chemical inhibitors. Its background-free fluorogenicity enabled us to perform the first quantitative high-throughput live cell screen for TrxR1 inhibitors, which indicated that tempered SNAr electrophiles may be more selective TrxR drugs than the classical electrophiles used hitherto. The RX1 design thus sets the stage for in vivo imaging of the activity of this key oxidoreductase in health and disease, and can also drive TrxR1-inhibitor drug design.
Collapse
|
7
|
Dual amplification enabled counting based ultrasensitive enzyme-linked immunosorbent assay. Anal Chim Acta 2022; 1198:339510. [DOI: 10.1016/j.aca.2022.339510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 11/17/2022]
|
8
|
Kim HR, Sarkar S, Ahn KH. A Two-Photon, Ratiometric Sensing Platform Based on a Solid State Luminescent Benzocoumarin: Application to Prolonged Bioimaging of Hydrogen Peroxide. Chem Asian J 2021; 17:e202101317. [PMID: 34962711 DOI: 10.1002/asia.202101317] [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: 11/23/2021] [Revised: 12/22/2021] [Indexed: 11/06/2022]
Abstract
Fluorescent probes provide essential tools for studying biological systems. For the prolonged imaging of cellular analytes, the fast clearance of small-molecular probes and products is a matter of concern in the quantitative analysis. The activatable probes that produce insoluble products inside cell can be used for the prolonged imaging, but those with ratiometric imaging capability are rare. We disclose the novel sensing platform that is capable of the prolonged imaging, in addition to ratiometric signaling for the reliable quantitative analysis. Specifically, 3-(pyridin-4-yl)-8-(pyrrolidin-1-yl)-2 H benzo[ g ]chromen-2-one and its pyridinium salt as a dye couple constitute the ratiometric sensing platform. As the former dye produces highly emissive insoluble nanoaggregates inside cells, a fluorescent probe in the latter form, enables prolonged imaging of the target analyte in cells as well as in tissue by two-photon microscopy.
Collapse
Affiliation(s)
- Hye Rim Kim
- Pohang University of Science and Technology, chemistry, KOREA, REPUBLIC OF
| | - Sourav Sarkar
- Pohang University of Science and Technology, chemistry, KOREA, REPUBLIC OF
| | - Kyo Han Ahn
- POSTECH, Department of Chemistry, 77 Cheongam-Ro, 790-784, Pohang, KOREA, REPUBLIC OF
| |
Collapse
|
9
|
Li K, Ren TB, Huan S, Yuan L, Zhang XB. Progress and Perspective of Solid-State Organic Fluorophores for Biomedical Applications. J Am Chem Soc 2021; 143:21143-21160. [PMID: 34878771 DOI: 10.1021/jacs.1c10925] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Fluorescent organic dyes have been extensively used as raw materials for the development of versatile imaging tools in the field of biomedicine. Particularly, the development of solid-state organic fluorophores (SSOFs) in the past 20 years has exhibited an upward trend. In recent years, studies on SSOFs have focused on the development of advanced tools, such as optical contrast agents and phototherapy agents, for biomedical applications. However, the practical application of these tools has been hindered owing to several limitations. Thus, in this Perspective, we have provided insights that could aid researchers to further develop these tools and overcome the limitations such as limited aqueous dispersibility, low biocompatibility, and uncontrolled emission. First, we described the inherent photophysical properties and fluorescence mechanisms of conventional, aggregation-induced emissive, and precipitating SSOFs with respect to their biomedical applications. Subsequently, we highlighted the recent development of functionalized SSOFs for bioimaging, biosensing, and theranostics. Finally, we elucidated the potential prospects and limitations of current SSOF-based tools associated with biomedical applications.
Collapse
Affiliation(s)
- Ke Li
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Tian-Bing Ren
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Shuangyan Huan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Lin Yuan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| |
Collapse
|
10
|
Li K, Xu S, Xiong M, Huan SY, Yuan L, Zhang XB. Molecular engineering of organic-based agents for in situ bioimaging and phototherapeutics. Chem Soc Rev 2021; 50:11766-11784. [PMID: 34570124 DOI: 10.1039/d1cs00408e] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ monitoring of the location and transportation of bioactive molecules is essential for deciphering diverse biological events in the field of biomedicine. In addition, obtaining the in situ information of lesions will provide a clear perspective for surgeons to perform precise resection in clinical surgery. Notably, delivering drugs or operating photodynamic therapy/photothermal therapy in situ by labeling the lesion regions of interest can improve treatment and reduce side effects in vivo. In various advanced imaging and therapy modalities, optical theranostic agents based on organic small molecules can be conveniently modified as needed and can be easily internalized into cells/lesions in a non-invasive manner, which are prerequisites for in situ bioimaging and precision treatment. In this tutorial review, we first summarize the in situ molecular immobilization strategies to retain small-molecule agents inside cells/lesions to prevent their diffusion in living organisms. Emphasis will be focused on introducing the application of these strategies for in situ imaging of biomolecules and precision treatment, particularly pertaining to why targeting therapy in situ is required.
Collapse
Affiliation(s)
- Ke Li
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Shuai Xu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Mengyi Xiong
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Shuang-Yan Huan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Lin Yuan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| |
Collapse
|
11
|
Girault M, Siano R, Labry C, Latimier M, Jauzein C, Beneyton T, Buisson L, Del Amo Y, Baret JC. Variable inter and intraspecies alkaline phosphatase activity within single cells of revived dinoflagellates. ISME JOURNAL 2021; 15:2057-2069. [PMID: 33568788 DOI: 10.1038/s41396-021-00904-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 01/04/2021] [Accepted: 01/20/2021] [Indexed: 01/21/2023]
Abstract
Adaptation of cell populations to environmental changes is mediated by phenotypic variability at the single-cell level. Enzyme activity is a key factor in cell phenotype and the expression of the alkaline phosphatase activity (APA) is a fundamental phytoplankton strategy for maintaining growth under phosphate-limited conditions. Our aim was to compare the APA among cells and species revived from sediments of the Bay of Brest (Brittany, France), corresponding to a pre-eutrophication period (1940's) and a beginning of a post-eutrophication period (1990's) during which phosphate concentrations have undergone substantial variations. Both toxic marine dinoflagellate Alexandrium minutum and the non-toxic dinoflagellate Scrippsiella acuminata were revived from ancient sediments. Using microfluidics, we measured the kinetics of APA at the single-cell level. Our results indicate that all S. acuminata strains had significantly higher APA than A. minutum strains. For both species, the APA in the 1990's decade was significantly lower than in the 1940's. For the first time, our results reveal both inter and intraspecific variabilities of dinoflagellate APA and suggest that, at a half-century timescale, two different species of dinoflagellate may have undergone similar adaptative evolution to face environmental changes and acquire ecological advantages.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Lionel Buisson
- Univ. Bordeaux, CNRS, CRPP, UMR5031, 33600, Pessac, France
| | - Yolanda Del Amo
- Université de Bordeaux, UMR CNRS 5805 EPOC, Station Marine d'Arcachon, 33120, Arcachon, France
| | - Jean-Christophe Baret
- Univ. Bordeaux, CNRS, CRPP, UMR5031, 33600, Pessac, France. .,Institut Universitaire de France, 75005, Paris, France.
| |
Collapse
|
12
|
Xing Z, Wu W, Miao Y, Tang Y, Zhou Y, Zheng L, Fu Y, Song Z, Peng Y. Recent advances in quinazolinones as an emerging molecular platform for luminescent materials and bioimaging. Org Chem Front 2021. [DOI: 10.1039/d0qo01425g] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review summarized recent advances relating to the luminescence properties of quinazolinones and their applications in fluorescent probes, biological imaging and luminescent materials. Their future outlook is also included.
Collapse
Affiliation(s)
- Zhiming Xing
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Wanhui Wu
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Yongxiang Miao
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Yingqun Tang
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Youkang Zhou
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Lifang Zheng
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Yang Fu
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Zhibin Song
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Yiyuan Peng
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| |
Collapse
|
13
|
DIY enzyme labelled fluorescence alcohol (ELFA) standard production protocol to quantify single-cell phosphatase activity (SCPA) of microplankton. Heliyon 2020; 6:e05582. [PMID: 33294708 PMCID: PMC7701348 DOI: 10.1016/j.heliyon.2020.e05582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/19/2020] [Accepted: 11/19/2020] [Indexed: 11/29/2022] Open
Abstract
Extracellular enzyme activities (EEA) are crucial components of microbial food web interactions and biogeochemical cycles in aquatic ecosystems. They also represent relevant biological traits in the ecophysiology of phytoplankton and other components of microbial plankton. To assess species-specific and (sub-)population-level characteristics of phytoplankton EEA at the single-cell level and close-to-in-situ conditions solely the enzyme labelled fluorescence (ELF)-based substrates have been used, because they become fluorescent and precipitate around the enzyme activity location upon enzymatic cleavage. However, the enzyme-labelled fluorescence alcohol (ELFA) standard is no longer commercially available, hence standard curves cannot be run anymore and single-cell phosphatase activity (SCPA) is no longer quantifiable. Therefore, we introduce a simple protocol for an ELFA standard do it yourself (DIY) production to enable quantifying microplankton SCPA again. This protocol is based on fluorescence measurements easily available to environmental enzyme activity laboratories, and it circumvents any need for chemical synthesis equipment and knowledge. The method is based on a controlled reaction of the ELF-phosphate (ELFP) substrate with commercially available alkaline phosphatase, which efficiently turns all the substrate into ELFA product. The ELFA product was dried out and dissolved again in dimethyl sulfoxide (DMSO) for storage. The ELFA concentration of that standard-to-be ELFA solution in DMSO was determined by linear regression between a low concentration dilution series of ELFA solution measured fluorimetrically and parallel measurements of a series of phosphatase-catalysed reactions at an overlapping ELFP concentration range. Finally, the fluorescence- and concentration-stable ELFA solution in DMSO with a known concentration constitutes the ELFA standard that is necessary to quantify bulk (fluorimeter) and single-cell (microscope and flow cytometer) phosphatase activity in microplankton.
Collapse
|
14
|
Kaur M, Kaur H, Kumar M, Bhalla V. 'Light-Up' AIE-Active Materials: Self-Assembly, Molecular Recognition and Catalytic Applications. CHEM REC 2020; 21:240-256. [PMID: 33241911 DOI: 10.1002/tcr.202000117] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/22/2020] [Accepted: 10/22/2020] [Indexed: 11/07/2022]
Abstract
Aggregation induced emission enhancement (AIEE) is one of the most widely explored phenomena to develop 'light up' (fluorescent) materials having potential applications in the field of supramolecular chemistry, analytical chemistry and material chemistry. By applying the principles of host-guest chemistry, we have developed a variety of aggregation induced emission (AIE/AEE) active materials having specific affinity for metal ions, electron deficient/electron rich analytes. The interactions between AIE active assemblies and metal ions are further tuned to prepare nanohybrids having potential applications as catalytic/photocatalytic systems in various organic transformations under eco-friendly conditions. This account summarizes various design strategies developed in our labortary for the preparation of AIE/AEE active building blocks having sensing and catalytic applications.
Collapse
Affiliation(s)
- Mandeep Kaur
- Department of Chemistry, Guru Nanak Dev University, UGC Sponsored Centre for advanced studies-II, Amritsar, Punjab, India
| | - Harpreet Kaur
- Department of Chemistry, Guru Nanak Dev University, UGC Sponsored Centre for advanced studies-II, Amritsar, Punjab, India
| | - Manoj Kumar
- Department of Chemistry, Guru Nanak Dev University, UGC Sponsored Centre for advanced studies-II, Amritsar, Punjab, India
| | - Vandana Bhalla
- Department of Chemistry, Guru Nanak Dev University, UGC Sponsored Centre for advanced studies-II, Amritsar, Punjab, India
| |
Collapse
|
15
|
Rico-Reséndiz F, Cervantes-Pérez SA, Espinal-Centeno A, Dipp-Álvarez M, Oropeza-Aburto A, Hurtado-Bautista E, Cruz-Hernández A, Bowman JL, Ishizaki K, Arteaga-Vázquez MA, Herrera-Estrella L, Cruz-Ramírez A. Transcriptional and Morpho-Physiological Responses of Marchantia polymorpha upon Phosphate Starvation. Int J Mol Sci 2020; 21:ijms21218354. [PMID: 33171770 PMCID: PMC7672586 DOI: 10.3390/ijms21218354] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 01/22/2023] Open
Abstract
Phosphate (Pi) is a pivotal nutrient that constraints plant development and productivity in natural ecosystems. Land colonization by plants, more than 470 million years ago, evolved adaptive mechanisms to conquer Pi-scarce environments. However, little is known about the molecular basis underlying such adaptations at early branches of plant phylogeny. To shed light on how early divergent plants respond to Pi limitation, we analyzed the morpho-physiological and transcriptional dynamics of Marchantia polymorpha upon Pi starvation. Our phylogenomic analysis highlights some gene networks present since the Chlorophytes and others established in the Streptophytes (e.g., PHR1–SPX1 and STOP1–ALMT1, respectively). At the morpho-physiological level, the response is characterized by the induction of phosphatase activity, media acidification, accumulation of auronidins, reduction of internal Pi concentration, and developmental modifications of rhizoids. The transcriptional response involves the induction of MpPHR1, Pi transporters, lipid turnover enzymes, and MpMYB14, which is an essential transcription factor for auronidins biosynthesis. MpSTOP2 up-regulation correlates with expression changes in genes related to organic acid biosynthesis and transport, suggesting a preference for citrate exudation. An analysis of MpPHR1 binding sequences (P1BS) shows an enrichment of this cis regulatory element in differentially expressed genes. Our study unravels the strategies, at diverse levels of organization, exerted by M. polymorpha to cope with low Pi availability.
Collapse
Affiliation(s)
- Félix Rico-Reséndiz
- Molecular and Developmental Complexity Group, Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional, Irapuato 36824, Guanajuato, Mexico; (F.R.-R.); (A.E.-C.); (M.D.-Á.)
| | - Sergio Alan Cervantes-Pérez
- Plant Physiology and Metabolic Engineering Group, Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional, Irapuato 36824, Guanajuato, Mexico; (S.A.C.-P.); (A.O.-A.); (L.H.-E.)
| | - Annie Espinal-Centeno
- Molecular and Developmental Complexity Group, Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional, Irapuato 36824, Guanajuato, Mexico; (F.R.-R.); (A.E.-C.); (M.D.-Á.)
| | - Melissa Dipp-Álvarez
- Molecular and Developmental Complexity Group, Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional, Irapuato 36824, Guanajuato, Mexico; (F.R.-R.); (A.E.-C.); (M.D.-Á.)
| | - Araceli Oropeza-Aburto
- Plant Physiology and Metabolic Engineering Group, Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional, Irapuato 36824, Guanajuato, Mexico; (S.A.C.-P.); (A.O.-A.); (L.H.-E.)
| | - Enrique Hurtado-Bautista
- Molecular Biology and Microbial Ecology, Unidad Irapuato, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional, Irapuato 36824, Guanajuato, Mexico;
| | - Andrés Cruz-Hernández
- Escuela de Agronomía, Universidad de La Salle Bajío, León 37160, Guanajuato, Mexico;
| | - John L. Bowman
- School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia;
| | | | - Mario A. Arteaga-Vázquez
- Group of Epigenetics and Developmental Biology, Instituto de Biotecnología y Ecología Aplicada (INBIOTECA), Universidad Veracruzana, Xalapa 91640, Mexico;
| | - Luis Herrera-Estrella
- Plant Physiology and Metabolic Engineering Group, Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional, Irapuato 36824, Guanajuato, Mexico; (S.A.C.-P.); (A.O.-A.); (L.H.-E.)
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Alfredo Cruz-Ramírez
- Molecular and Developmental Complexity Group, Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional, Irapuato 36824, Guanajuato, Mexico; (F.R.-R.); (A.E.-C.); (M.D.-Á.)
- Correspondence: ; Tel.: +52-462-166-3000 (ext. 3005)
| |
Collapse
|
16
|
Anzola M, Winssinger N. Turn On of a Ruthenium(II) Photocatalyst by DNA-Templated Ligation. Chemistry 2018; 25:334-342. [PMID: 30451338 DOI: 10.1002/chem.201804283] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Indexed: 01/05/2023]
Abstract
Here, the synthesis of a RuII photocatalyst by light-directed oligonucleotide-templated ligation reaction is described. The photocatalyst was found to have tremendous potential for signal amplification with >15000 turnovers measured in 9 hours. A templated reaction was used to turn on the activity of this ruthenium(II) photocatalyst in response to a specific DNA sequence. The photocatalysis of the ruthenium(II) complex was harnessed to uncage a new precipitating dye that is highly fluorescent and photostable in the solid state. This reaction was used to discriminate between different DNA analytes based on localization of the precipitate as well as for in cellulo miRNA detection. Finally, a bipyridine ligand functionalized with two different peptide nucleic acid (PNA) sequences was shown to enable template-mediated ligation (turn on of the ruthenium(II) photocatalysis) and recruitment of substrate for templated photocatalysis.
Collapse
Affiliation(s)
- Marcello Anzola
- Department of Organic Chemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, 30 Quai Ernest-Ansermet, 1205, Geneva, Switzerland
| | - Nicolas Winssinger
- Department of Organic Chemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, 30 Quai Ernest-Ansermet, 1205, Geneva, Switzerland
| |
Collapse
|
17
|
Vrba J, Macholdová M, Nedbalová L, Nedoma J, Šorf M. An Experimental Insight into Extracellular Phosphatases - Differential Induction of Cell-Specific Activity in Green Algae Cultured under Various Phosphorus Conditions. Front Microbiol 2018. [PMID: 29515551 PMCID: PMC5826342 DOI: 10.3389/fmicb.2018.00271] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Extracellular phosphatase activity (PA) has been used as an overall indicator of P depletion in lake phytoplankton. However, detailed insights into the mechanisms of PA regulation are still limited, especially in the case of acid phosphatases. The novel substrate ELF97 phosphate allows for tagging PA on single cells in an epifluorescence microscope. This fluorescence-labeled enzyme activity (FLEA) assay enables for autecological studies in natural phytoplankton and algal cultures. We combined the FLEA assay with image analysis to measure cell-specific acid PA in two closely related species of the genus Coccomyxa (Trebouxiophyceae, Chlorophyta) isolated from two acidic lakes with distinct P availability. The strains were cultured in a mineral medium supplied with organic (beta-glycerol phosphate) or inorganic (orthophosphate) P at three concentrations. Both strains responded to experimental conditions in a similar way, suggesting that acid extracellular phosphatases were regulated irrespectively of the origin and history of the strains. We found an increase in cell-specific PA at low P concentration and the cultures grown with organic P produced significantly higher (ca. 10-fold) PA than those cultured with the same concentrations of inorganic P. The cell-specific PA measured in the cultures grown with the lowest organic P concentration roughly corresponded to those of the original Coccomyxa population from an acidic lake with impaired P availability. The ability of Coccomyxa strains to produce extracellular phosphatases, together with tolerance for both low pH and metals can be one of the factors enabling the dominance of the genus in extreme conditions of acidic lakes. The analysis of frequency distribution of the single-cell PA documented that simple visual counting of ‘active’ (labeled) and ‘non-active’ (non-labeled) cells can lead to biased conclusions regarding algal P status because the actual PA of the ‘active’ cells can vary from negligible to very high values. The FLEA assay using image cytometry offers a strong tool in plankton ecology for exploring P metabolism.
Collapse
Affiliation(s)
- Jaroslav Vrba
- Department of Ecosystem Biology, Faculty of Science, University of South Bohemia, České Budějovice, Czechia.,Institute of Hydrobiology, Biology Centre CAS, České Budějovice, Czechia
| | - Markéta Macholdová
- Department of Ecology, Faculty of Science, Charles University, Prague, Czechia
| | - Linda Nedbalová
- Department of Ecology, Faculty of Science, Charles University, Prague, Czechia
| | - Jiří Nedoma
- Institute of Hydrobiology, Biology Centre CAS, České Budějovice, Czechia
| | - Michal Šorf
- Department of Ecosystem Biology, Faculty of Science, University of South Bohemia, České Budějovice, Czechia.,Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of AgriSciences, Mendel University, Brno, Czechia
| |
Collapse
|
18
|
Girault M, Beneyton T, Pekin D, Buisson L, Bichon S, Charbonnier C, del Amo Y, Baret JC. High-Content Screening of Plankton Alkaline Phosphatase Activity in Microfluidics. Anal Chem 2018; 90:4174-4181. [DOI: 10.1021/acs.analchem.8b00234] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Mathias Girault
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France
| | - Thomas Beneyton
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France
| | - Deniz Pekin
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France
| | - Lionel Buisson
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France
| | - Sabrina Bichon
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France
| | - Céline Charbonnier
- Laboratoire d’Environnements et Paléoenvironnements Océaniques et Continentaux, Unité Mixte de Recherche 5805, Centre National de la Recherche Scientifique, 33615 Pessac, France
| | - Yolanda del Amo
- Laboratoire d’Environnements et Paléoenvironnements Océaniques et Continentaux, Unité Mixte de Recherche 5805, Centre National de la Recherche Scientifique, 33615 Pessac, France
| | - Jean-Christophe Baret
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France
| |
Collapse
|
19
|
Wei S, Zhou XR, Huang Z, Yao Q, Gao Y. Hydrogen sulfide induced supramolecular self-assembly in living cells. Chem Commun (Camb) 2018; 54:9051-9054. [DOI: 10.1039/c8cc05174g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A gasotransmitter mediated reduction instructs supramolecular self-assembly in multiple living cell lines, revealing the variation in intracellular H2S production.
Collapse
Affiliation(s)
- Simin Wei
- CAS Center for Excellence in Nanoscience
- CAS Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology
- Beijing 100190
- China
| | - Xi-Rui Zhou
- CAS Center for Excellence in Nanoscience
- CAS Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology
- Beijing 100190
- China
| | - Zhentao Huang
- CAS Center for Excellence in Nanoscience
- CAS Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology
- Beijing 100190
- China
| | - Qingxin Yao
- CAS Center for Excellence in Nanoscience
- CAS Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology
- Beijing 100190
- China
| | - Yuan Gao
- CAS Center for Excellence in Nanoscience
- CAS Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology
- Beijing 100190
- China
| |
Collapse
|
20
|
Zhao Z, Bi X, Mao W, Xu X. A novel HPQ-based turn-on fluorescent probe for detection of fluoride ions in living cells. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.09.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
21
|
Liu W, Chen W, Liu SJ, Jiang JH. An excited-state intramolecular photon transfer fluorescence probe for localizable live cell imaging of cysteine. Methods Appl Fluoresc 2017; 5:014012. [DOI: 10.1088/2050-6120/aa6160] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
22
|
CAI ZJ, KUANG YQ, PAN D, LIU W, JIANG JH. Synthesis and Characterization of a Novel ELF-97-based Fluorescent Probe for Hydrogen Peroxide Detection. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1016/s1872-2040(15)60875-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
23
|
Zhou L, Zhang X, Lv Y, Yang C, Lu D, Wu Y, Chen Z, Liu Q, Tan W. Localizable and Photoactivatable Fluorophore for Spatiotemporal Two-Photon Bioimaging. Anal Chem 2015; 87:5626-31. [DOI: 10.1021/acs.analchem.5b00691] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Liyi Zhou
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
| | - Xiaobing Zhang
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
| | - Yifan Lv
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
| | - Chao Yang
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
| | - Danqing Lu
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
| | - Yuan Wu
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
- Department
of Chemistry, Department of Physiology and Functional Genomics, Center
for Research at Bio/Nano Interface, Shands Cancer Center, University
of Florida Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Zhuo Chen
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
| | - Qiaoling Liu
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
| | - Weihong Tan
- Molecular
Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing
and Chemometrics, College of Chemistry and Chemical Engineering, College
of Biology, and Collaborative Research Center of Molecular Engineering
for Theranostics, Hunan University, Changsha 410082, China
- Department
of Chemistry, Department of Physiology and Functional Genomics, Center
for Research at Bio/Nano Interface, Shands Cancer Center, University
of Florida Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
| |
Collapse
|
24
|
Rychtecký P, Řeháková K, Kozlíková E, Vrba J. Light availability may control extracellular phosphatase production in turbid environments. MICROBIAL ECOLOGY 2015; 69:37-44. [PMID: 25190580 DOI: 10.1007/s00248-014-0483-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 08/12/2014] [Indexed: 06/03/2023]
Abstract
Extracellular phosphatase production by phytoplankton was investigated in the moderately eutrophic Lipno reservoir, Czech Republic during 2009 and 2010. We hypothesized that production of extracellular phosphatases is an additional mechanism of phosphorus acquisition enabling producers to survive rather than to dominate the phytoplankton. Hence, we examined the relationship between light availability and phosphatase production, as light plays an important role in polymictic environments. Bulk phosphatase activity was measured using a common fluorometric assay, and the production of phosphatases was studied using the Fluorescently Labelled Enzyme Activity technique, which enabled direct microscopic detection of phosphatase-positive cells. In total, 29 taxa of phytoplankton were identified during both years. Only 17 taxa from the total number of 29 showed production of extracellular phosphatases. Species dominating the phytoplankton rarely produced extracellular phosphatases. In contrast, taxa exhibiting phosphatase activity were present in low biomass in the phytoplankton assemblage. Moreover, there was a significant relationship between the proportion of phosphatase positive species in samples and the Z(eu):Z(mix) ratio (a proxy of light availability). A laboratory experiment with different light intensities confirmed the influence of light on production of phosphatases. Our seasonal study confirmed that extracellular phosphatase production is common in low-abundance populations but not in dominant taxa of the phytoplankton. It also suggested the importance of sufficient light conditions for the production of extracellular phosphatases.
Collapse
Affiliation(s)
- Pavel Rychtecký
- Faculty of Science, University of South Bohemia, Branišovská 31, České Budějovice, 37005, Czech Republic,
| | | | | | | |
Collapse
|
25
|
Prost M, Hasserodt J. “Double gating” – a concept for enzyme-responsive imaging probes aiming at high tissue specificity. Chem Commun (Camb) 2014; 50:14896-9. [DOI: 10.1039/c4cc07147f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
26
|
Prost M, Canaple L, Samarut J, Hasserodt J. Tagging Live Cells that Express Specific Peptidase Activity with Solid-State Fluorescence. Chembiochem 2014; 15:1413-7. [DOI: 10.1002/cbic.201402091] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Indexed: 11/11/2022]
|
27
|
Abstract
IL-10 is one of the key cytokines preventing inflammation-mediated tissue damage. In an attempt to identify IL-10-producing cells in vivo, several groups have recently developed IL-10 reporter mouse strains. Up until now, in total, eight IL-10 reporter strains have been published. This incomparable interest in IL-10 reporter mice emphasizes the importance and difficulties in tracking and subsequently investigating the role of IL-10-producing cells in infectious, inflammatory, autoimmune and cancer diseases. In this review, I summarize and compare the properties of those published IL-10 reporter mouse models. I also discuss the necessity to develop new strategies to generate 'multi-cytokine' reporter mouse models enabling highly sensitive in/ex vivo detection of many cytokines in the same single cell. Such 'multi-cytokine' reporter mice will enable to reconsider the dichotomy 'T-effector versus T-regulatory' paradigm and to provide an accurate revised model for cellular sources of cytokines. Finally, I propose to launch cooperative, international initiatives to promote and coordinate the generation of accurate, combinatorial, reporter mice for every individual murine cytokine.
Collapse
Affiliation(s)
- H Bouabe
- Department of Bacteriology, Max von Pettenkofer Institute, Munich, Germany.
| |
Collapse
|
28
|
Thorn-Seshold O, Vargas-Sanchez M, McKeon S, Hasserodt J. A robust, high-sensitivity stealth probe for peptidases. Chem Commun (Camb) 2012; 48:6253-5. [PMID: 22595966 DOI: 10.1039/c2cc32227g] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A robust, modular fluorogenic probe system has been developed which allows the highly sensitive off-ON detection of aminopeptidase activity by releasing an exceptionally photostable, insoluble, phenolic ESIPT fluorophore. The probes generate no false positive signal in over 24 hours, but when activated give a signal within 10 minutes.
Collapse
Affiliation(s)
- Oliver Thorn-Seshold
- Laboratoire de Chimie, CNRS, École Normale Supérieure de Lyon, 46 Allée d'Italie, F-69364 Lyon, France
| | | | | | | |
Collapse
|
29
|
Abstract
The early detection of many human diseases is crucial if they are to be treated successfully. Therefore, the development of imaging techniques that can facilitate early detection of disease is of high importance. Changes in the levels of enzyme expression are known to occur in many diseases, making their accurate detection at low concentrations an area of considerable active research. Activatable fluorescent probes show immense promise in this area. If properly designed they should exhibit no signal until they interact with their target enzyme, reducing the level of background fluorescence and potentially endowing them with greater sensitivity. The mechanisms of fluorescence changes in activatable probes vary. This review aims to survey the field of activatable probes, focusing on their mechanisms of action as well as illustrating some of the in vitro and in vivo settings in which they have been employed.
Collapse
Affiliation(s)
- Christopher R Drake
- Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry Street, Suite 350, Box 0946, San Francisco, CA, 94107, USA
| | | | | |
Collapse
|
30
|
Kim TI, Kim H, Choi Y, Kim Y. A fluorescent turn-on probe for the detection of alkaline phosphatase activity in living cells. Chem Commun (Camb) 2011; 47:9825-7. [DOI: 10.1039/c1cc13819g] [Citation(s) in RCA: 144] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
31
|
Aw J, Shao Q, Yang Y, Jiang T, Ang C, Xing B. Synthesis and characterization of 2-(2'-hydroxy-5'-chlorophenyl)-6-chloro-4(3H)-quinazolinone-based fluorogenic probes for cellular imaging of monoamine oxidases. Chem Asian J 2010; 5:1317-21. [PMID: 20397188 DOI: 10.1002/asia.201000025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Junxin Aw
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | | | | | | | | | | |
Collapse
|
32
|
Zhang XB, Waibel M, Hasserodt J. An Autoimmolative Spacer Allows First-Time Incorporation of a Unique Solid-State Fluorophore into a Detection Probe for Acyl Hydrolases. Chemistry 2009; 16:792-5. [DOI: 10.1002/chem.200902412] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
33
|
Duflos M, Goutx M, Van Wambeke F. Determination of Lipid Degradation by Marine Lipase-Producing Bacteria: Critical Evaluation of Lipase Activity Assays. Lipids 2009; 44:1113-24. [DOI: 10.1007/s11745-009-3358-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Accepted: 09/29/2009] [Indexed: 11/29/2022]
|
34
|
Badré S, Monnier V, Méallet-Renault R, Dumas-Verdes C, Schmidt EY, Mikhaleva AI, Laurent G, Levi G, Ibanez A, Trofimov BA, Pansu RB. Fluorescence of molecular micro- and nanocrystals prepared with Bodipy derivatives. J Photochem Photobiol A Chem 2006. [DOI: 10.1016/j.jphotochem.2006.07.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
35
|
Nedoma J, Vrba J. Specific activity of cell-surface acid phosphatase in different bacterioplankton morphotypes in an acidified mountain lake. Environ Microbiol 2006; 8:1271-9. [PMID: 16817935 DOI: 10.1111/j.1462-2920.2006.01023.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Activity of extracellular acid phosphatases was measured at single-cell level in bacterioplankton groups defined by their morphology and size, in acidified mountain Lake Certovo, during the 2003 season, with a method based on use of the substrate ELF97 phosphate which provides fluorescent precipitates upon hydrolysis by phosphatases. The bacterial cell-associated precipitates were quantified by image analysis. A specific, conspicuous, apparently homogeneous morphotype of curved cells of approximately 5 microm average length, despite its low total biomass (average of 4%), contributed significantly (in average by 31%) to the total bacterioplankton phosphatase activity in Lake Certovo (ranging from 1.0 to 12.7 micromol l(-1) h(-1), using ELF97 phosphate as a substrate). Bacterial filaments (> 10 microm), although comprising in average 85% of bacterioplankton biomass, contributed to the total bacterioplankton activity only by 45%. Biomass-specific activity of extracellular (cell-surface) phosphatases of the main bacterioplankton morphotypes increased in the order filaments < cocci and rods < curved cells. The biomass-specific activity of bacterioplankton extracellular phosphatases (0-300 nmol microgC(-1) h(-1)) was generally highest in the spring and decreased gradually during summer. These changes could result from seasonal changes in the phosphorus status of the lake and from subsequent regulation of enzyme expression by bacteria.
Collapse
Affiliation(s)
- Jirí Nedoma
- Hydrobiological Institute, Academy of Sciences of the Czech Republic, Na Sádkách 7, CZ-370 05 Ceské, Budejovice, Czech Republic.
| | | |
Collapse
|
36
|
Nedoma J, Strojsová A, Vrba J, Komárková J, Simek K. Extracellular phosphatase activity of natural plankton studied with ELF97 phosphate: fluorescence quantification and labelling kinetics. Environ Microbiol 2003; 5:462-72. [PMID: 12755713 DOI: 10.1046/j.1462-2920.2003.00431.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
ELF(R)97 phosphate (ELFP) is a phosphatase substrate which produces ELF(R)97 alcohol (ELFA), a fluorescent water-insoluble product, upon hydrolysis. We studied the kinetics of ELFA precipitation in freshwater samples at levels of total plankton and single phytoplankton cells, and tested the suitability of ELFP for measurement of surface-bound algal extracellular phosphatases. Samples from acidic Plesné Lake (pH approximately 5; high phosphatase activity) and eutrophic Rímov reservoir (pH approximately 7-10; moderate phosphatase activity) were incubated with ELFP for 5-300 min, fixed with HgCl2 and filtered through polycarbonate filters. Relative fluorescence of filter-retained ELFA precipitates was quantified with image analysis. Time-courses of ELFA formation exhibited lag periods followed by finite periods of linear increase. In Plesné Lake, lag-times were shorter (1-18 min) and rates of increase in ELFA fluorescence higher (by approximately 2 orders of magnitude) than in Rímov reservoir (lag-times 30-200 min). Similar patterns of ELFA formation kinetics were also observed in Plesné Lake samples in cuvette spectrofluorometer measurements (which failed in Rímov reservoir). Linear regression of seasonal data on rates of increase in ELFA fluorescence from image cytometry and spectrofluorometry (r2 = 0.65, n = 10) allowed for calibration of image cytometry in terms of amount of cell-associated ELFA. Preliminary measurements of extracellular phosphatase activities of several algae resulted in rates (10-2260 fmol cell-1 h-1) which are comparable to data reported in the literature for algal cultures.
Collapse
Affiliation(s)
- Jirí Nedoma
- Hydrobiological Institute, Academy of Sciences of the Czech Republic, Na sádkách 7, CZ-370 05 Ceské Budejovice, Czech Republic.
| | | | | | | | | |
Collapse
|
37
|
Talavera EM, Bermejo R, Crovetto L, Orte A, Alvarez-Pez JM. Fluorescence energy transfer between fluorescein label and DNA intercalators to detect nucleic acids hybridization in homogeneous media. APPLIED SPECTROSCOPY 2003; 57:208-215. [PMID: 14610959 DOI: 10.1366/000370203321535132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A general approach to detecting nucleic acid sequences in homogeneous media by means of steady-state fluorescence measurements is proposed. The methodology combines the use of a fluorescence-labeled single-strand DNA model probe, the complementary single-strand DNA target, and a DNA intercalator. The probe was fluorescein labeled to a spacer arm at the N4 position of the cytosine amino groups in polyribocytidylic acid (5'), poly(C), which acts as a model DNA probe. The complementary strand was polyriboinosinic acid (5'), poly(I), as a model of the target, and the energy transfer acceptor was an intercalator, either ethidium bromide or ethidium homodimer. In previous papers we have shown that the fluorescence intensity of the fluorescein label decreases when labeled poly(C) hybridizes with poly(I), and this fluorescence quenching can be used to detect DNA hybridization or renaturation in homogeneous media. In this paper we demonstrate that fluorescence resonance energy transfer (FRET) between fluorescein labeled to poly(C) and an intercalator agent takes place when single-stranded poly(C) hybridizes with poly(I), and we show how the fluorescence energy transfer further decreases the steady-state fluorescence intensity of the label, thus increasing the detection limit of the method. The main aim of this work was to develop a truly homogeneous detection system for specific nucleic acid hybridization in solution using steady-state fluorescence and FRET, but with the advantage of only having to label the probe with the energy donor since the energy acceptor is intercalated spontaneously. Moreover, the site label is not critical and can be labeled randomly in the DNA strand. Thus, the method is simpler than those published previously based on FRET. The experiments were carried out in both direct and competitive formats.
Collapse
Affiliation(s)
- Eva M Talavera
- Department of Physical Chemistry, Cartuja Campus, Granada University, 18071 Granada, Spain
| | | | | | | | | |
Collapse
|
38
|
Paragas VB, Zhang YZ, Haugland RP, Singer VL. The ELF-97 alkaline phosphatase substrate provides a bright, photostable, fluorescent signal amplification method for FISH. J Histochem Cytochem 1997; 45:345-57. [PMID: 9071316 DOI: 10.1177/002215549704500302] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
We used the ELF-97 (Enzyme-Labeled Fluorescence) phosphatase substrate, 2-(5'-chloro-2-phosphoryloxyphenyl)-6-chloro-4(3H)-quinazolinone, with alkaline phosphatase conjugates of streptavidin and appropriate antibodies to amplify signals from biotinylated and haptenylated hybridization probes. The dephosphorylated product, ELF-97 alcohol, is a bright yellow-green fluorescent precipitate optimally excited at approximately 360 nm, with emission centered at approximately 530 nm. This large Stokes shift allows ELF-97 signals to be easily distinguished from sample autofluorescence and signals arising from counterstains or other fluorophores. The ELF-97 precipitate was extremely photostable compared to fluorescein, allowing multiple photographic exposures of samples without significant signal intensity loss. For RNA in situ hybridization, labeling was specific and localized well to targets in cultured cells, tissue sections, and whole-mount zebrafish embryos. ELF-97 signals developed in seconds to minutes and were easily distinguished from pigmented tissues or cells, unlike those obtained using colorimetric substrates. We used the substrate with singly biotinylated short oligonucleotides to detect actin mRNA in MDCK cells and actin and beta-galactosidase mRNA in LacZ+ mouse fibroblasts. We also used a biotinylated cDNA, complementary to the mRNA encoded by the constant region of the T-cell receptor beta-chain, to specifically identify T-cells in mouse lymph node tissue sections. With digoxigenin-labeled probes, we detected several developmentally expressed mRNAs in whole-mount zebrafish embryos. Hybridization to centromere repeat regions in human metaphase and interphase chromosomes was also detected; ELF-97 signals were manyfold brighter than signals obtained with fluorescein conjugates. Finally, Southern blot hybridization using singly labeled oligonucleotide probes yielded a sensitivity similar to that obtained with radioactivity.
Collapse
Affiliation(s)
- V B Paragas
- Molecular Probes, Inc., Eugene, OR 97402, USA
| | | | | | | |
Collapse
|