1
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Wang Y, Wang P, Li C. Fluorescence microscopic platforms imaging mitochondrial abnormalities in neurodegenerative diseases. Adv Drug Deliv Rev 2023; 197:114841. [PMID: 37088402 DOI: 10.1016/j.addr.2023.114841] [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: 01/07/2023] [Revised: 04/10/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
Neurodegenerative diseases (NDs) are progressive disorders that cause the degeneration of neurons. Mitochondrial dysfunction is a common symptom in NDs and plays a crucial role in neuronal loss. Mitochondrial abnormalities can be observed in the early stages of NDs and evolve throughout disease progression. Visualizing mitochondrial abnormalities can help understand ND progression and develop new therapeutic strategies. Fluorescence microscopy is a powerful tool for dynamically imaging mitochondria due to its high sensitivity and spatiotemporal resolution. This review discusses the relationship between mitochondrial dysfunction and ND progression, potential biomarkers for imaging dysfunctional mitochondria, advances in fluorescence microscopy for detecting organelles, the performance of fluorescence probes in visualizing ND-associated mitochondria, and the challenges and opportunities for developing new generations of fluorescence imaging platforms for monitoring mitochondria in NDs.
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Affiliation(s)
- Yicheng Wang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy; Zhongshan Hospital, Fudan University, Shanghai, China
| | - Pengwei Wang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy; Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cong Li
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy; Zhongshan Hospital, Fudan University, Shanghai, China; State Key Laboratory of Medical Neurobiology, Fudan University Shanghai 201203, China.
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2
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Alvarez-Venicio V, Castro-Beltrán R, Ramos-Ortiz G, Rodríguez M, Alba-Rosales JE, Gutiérrez-Juárez G, Santillán R, Ochoa ME, Flores-Villavicencio LL, Sabanero-López M. Red fluorescent benzothiadiazole derivative loaded in different nanoformulations: Optical properties and their use in bio-imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122250. [PMID: 36566533 DOI: 10.1016/j.saa.2022.122250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Fluorophores with optimized nonlinear optical properties have become prominent as contrast labels in laser scanning microscopy (LSM). The purpose of this work is to report on a novel benzothiadiazole derivative, namely 4,7-bis(5-((9,9-dioctyl-9H-fluoren-2-yl)ethynyl)thiophen-2-yl)benzo[c][1,2,5]thiadiazole (EFBT) and its optical performance when it is loaded into organic nanostructures intended as labels for LSM. Four different nanostructured labels were prepared: i) EFBT-loaded silica nanoparticles (SiNPs); ii) folate-bioconjugated SiNPs (SiNPs-FA); iii) EFBT-loaded PEGylated nanoparticles (NPs-PEG); and iv) EFBT-loaded folate-terminated PEGylated nanoparticles (NPs-PEG-FA). All these nanostructures are reported through a comparative study of their linear and nonlinear optical properties, including their performance as exogenous label agents in the cervical cancer cell line HeLa. This assessment of the performance of a specific fluorophore loaded into different nanostructured matrices (labels), and fairly compared under the same characterization conditions, including the LSM settings, is less common while previous reports had focused in comparing silica and PEGylated nanoparticles but loaded with different fluorophores. The results show that the internal molecular organization into each type of organic nanostructure impacted differently the properties of EFBT, where the silica matrix tend to preserve the optical performance of the fluorophore by preventing intermolecular interactions; in contrast, PEGylated nanoparticles favored molecular interactions and introduced non-radiative decay channels that degrades drastically the optical performance. Nevertheless, the use of functionalized ends entities produced a better cellular label uptake with PEGylated that with silica nanoparticles. In overall, the NPs-PEG-FA label produced the best HeLa imaging.
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Affiliation(s)
- V Alvarez-Venicio
- Centro de Investigaciones en Óptica A.P. 1-948, 37000 León, Gto., Mexico
| | - R Castro-Beltrán
- Departamento de Ingeniería Física, División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Lomas del Campestre, C.P. 37150, León, Guanajuato, México
| | - G Ramos-Ortiz
- Centro de Investigaciones en Óptica A.P. 1-948, 37000 León, Gto., Mexico.
| | - M Rodríguez
- Centro de Investigaciones en Óptica A.P. 1-948, 37000 León, Gto., Mexico.
| | - J E Alba-Rosales
- Centro de Investigaciones en Óptica A.P. 1-948, 37000 León, Gto., Mexico; Departamento de Ingeniería Física, División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Lomas del Campestre, C.P. 37150, León, Guanajuato, México
| | - G Gutiérrez-Juárez
- Departamento de Ingeniería Física, División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Lomas del Campestre, C.P. 37150, León, Guanajuato, México
| | - R Santillán
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, 07000, Apdo. Postal. 14-740, México D.F., Mexico
| | - M E Ochoa
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, 07000, Apdo. Postal. 14-740, México D.F., Mexico
| | - L L Flores-Villavicencio
- Departamento de Biología, División de Ciencias Naturales y Exactas, campus Guanajuato, Universidad de Guanajuato, Guanajuato 36050, Mexico
| | - M Sabanero-López
- Departamento de Biología, División de Ciencias Naturales y Exactas, campus Guanajuato, Universidad de Guanajuato, Guanajuato 36050, Mexico
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Babu Busi K, Palanivel M, Kanta Ghosh K, Basu Ball W, Gulyás B, Padmanabhan P, Chakrabortty S. The Multifarious Applications of Copper Nanoclusters in Biosensing and Bioimaging and Their Translational Role in Early Disease Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:301. [PMID: 35159648 PMCID: PMC8839130 DOI: 10.3390/nano12030301] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/30/2021] [Accepted: 01/14/2022] [Indexed: 02/04/2023]
Abstract
Nanoclusters possess an ultrasmall size, amongst other favorable attributes, such as a high fluorescence and long-term colloidal stability, and consequently, they carry several advantages when applied in biological systems for use in diagnosis and therapy. Particularly, the early diagnosis of diseases may be facilitated by the right combination of bioimaging modalities and suitable probes. Amongst several metallic nanoclusters, copper nanoclusters (Cu NCs) present advantages over gold or silver NCs, owing to their several advantages, such as high yield, raw abundance, low cost, and presence as an important trace element in biological systems. Additionally, their usage in diagnostics and therapeutic modalities is emerging. As a result, the fluorescent properties of Cu NCs are exploited for use in optical imaging technology, which is the most commonly used research tool in the field of biomedicine. Optical imaging technology presents a myriad of advantages over other bioimaging technologies, which are discussed in this review, and has a promising future, particularly in early cancer diagnosis and imaging-guided treatment. Furthermore, we have consolidated, to the best of our knowledge, the recent trends and applications of copper nanoclusters (Cu NCs), a class of metal nanoclusters that have been gaining much traction as ideal bioimaging probes, in this review. The potential modes in which the Cu NCs are used for bioimaging purposes (e.g., as a fluorescence, magnetic resonance imaging (MRI), two-photon imaging probe) are firstly delineated, followed by their applications as biosensors and bioimaging probes, with a focus on disease detection.
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Affiliation(s)
- Kumar Babu Busi
- Department of Chemistry, School of Engineering and Sciences, SRM University AP Andhra Pradesh, Gunntur, Andhra Pradesh 522502, India;
| | - Mathangi Palanivel
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 59 Nanyang Drive, Singapore 636921, Singapore; (M.P.); (K.K.G.); (B.G.)
| | - Krishna Kanta Ghosh
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 59 Nanyang Drive, Singapore 636921, Singapore; (M.P.); (K.K.G.); (B.G.)
| | - Writoban Basu Ball
- Department of Biological Sciences, School of Engineering and Sciences, SRM University AP Andhra Pradesh, Guntur, Andhra Pradesh 522502, India;
| | - Balázs Gulyás
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 59 Nanyang Drive, Singapore 636921, Singapore; (M.P.); (K.K.G.); (B.G.)
| | - Parasuraman Padmanabhan
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 59 Nanyang Drive, Singapore 636921, Singapore; (M.P.); (K.K.G.); (B.G.)
| | - Sabyasachi Chakrabortty
- Department of Chemistry, School of Engineering and Sciences, SRM University AP Andhra Pradesh, Gunntur, Andhra Pradesh 522502, India;
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Mouchel Dit Leguerrier D, Barré R, Molloy J, Thomas F. Lanthanide complexes as redox and ROS/RNS probes: A new paradigm that makes use of redox-reactive and redox non-innocent ligands. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Noh CK, Lim CS, Lee GH, Cho MK, Lee HW, Roh J, Kim YB, Lee E, Park B, Kim HM, Shin SJ. A Diagnostic Method for Gastric Cancer Using Two-Photon Microscopy With Enzyme-Selective Fluorescent Probes: A Pilot Study. Front Oncol 2021; 11:634219. [PMID: 34513658 PMCID: PMC8429903 DOI: 10.3389/fonc.2021.634219] [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: 11/27/2020] [Accepted: 08/10/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Endoscopy is the most important tool for gastric cancer diagnosis. However, it relies on naked-eye evaluation by endoscopists, and the histopathologic confirmation is time-consuming. We aimed to visualize and measure the activity of various enzymes through two-photon microscopy (TPM) using fluorescent probes and assess its diagnostic potential in gastric cancer. METHODS β-Galactosidase (β-gal), carboxylesterase (CES), and human NAD(P)H: quinone oxidoreductase (hNQO1) enzyme activities in the normal mucosa, ulcer, adenoma, and gastric cancer biopsy samples were measured using two-photon enzyme probes. The fluorescence emission ratio at long and short wavelengths (Ch2/Ch1) for each probe was comparatively analyzed. Approximately 8,000 - 9,000 sectional images in each group were obtained by measuring the Ch2/Ch1 ratio according to the tissue depth. Each probe was cross-validated by measuring enzymatic activity from a solution containing lysed tissue. RESULTS Total of 76 subjects were enrolled in this pilot study (normal 21, ulcer 18, adenoma 17, and cancer 20 patients, respectively). There were significant differences in the mean ratio values of β-gal (0.656 ± 0.142 vs. 1.127 ± 0.109, P < 0.001) and CES (0.876 ± 0.049 vs. 0.579 ± 0.089, P < 0.001) between the normal and cancer, respectively. The mean ratio value of cancer tissues was different compared to ulcer and adenoma (P < 0.001). The hNQO1 activity showed no significant difference between cancer and other conditions. Normal mucosa and cancer were visually and quantitatively distinguished through β-gal and CES analyses using TPM images, and enzymatic activity according to depth, was determined using sectional TPM ratiometric images. The results obtained from lysis buffer-treated tissue were consistent with TPM results. CONCLUSIONS TPM imaging using ratiometric fluorescent probes enabled the discrimination of gastric cancer from normal, ulcer, and adenoma. This novel method can help in a visual differentiation and provide quantitative depth profiling in gastric cancer diagnosis.
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Affiliation(s)
- Choong-Kyun Noh
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Chang Su Lim
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon, South Korea
| | - Gil Ho Lee
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
| | - Myung Ki Cho
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon, South Korea
| | - Hyo Won Lee
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon, South Korea
| | - Jin Roh
- Department of Pathology, Ajou University School of Medicine, Suwon, South Korea
| | - Young Bae Kim
- Department of Pathology, Ajou University School of Medicine, Suwon, South Korea
| | - Eunyoung Lee
- Office of Biostatistics, Ajou Research Institute for Innovation Medicine, Ajou University Medical Center, Suwon, South Korea
| | - Bumhee Park
- Office of Biostatistics, Ajou Research Institute for Innovation Medicine, Ajou University Medical Center, Suwon, South Korea
| | - Hwan Myung Kim
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon, South Korea
| | - Sung Jae Shin
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, South Korea
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Abeywickrama CS, Wijesinghe KJ, Plescia CB, Fisher LS, Goodson T, Stahelin RV, Pang Y. A pyrene-based two-photon excitable fluorescent probe to visualize nuclei in live cells. Photochem Photobiol Sci 2020; 19:1152-1159. [PMID: 32639494 DOI: 10.1039/d0pp00107d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The two-photon absorption properties of a pyrene-pyridinium dye (1) were studied for potential application in two-photon spectroscopy. When probe 1 was used in cellular two-photon fluorescence microscopy imaging, it allowed the visualization of nuclei in live cells with a relatively low probe concentration (such as 1 μM). Spectroscopic evidence further revealed that probe 1 interacted with DNA as an intercalator. The proposed DNA intercalation properties of probe 1 were consistent with the experimental findings that suggested that the observed nucleus staining ability is dependent on the substituents on the pyridinium fragment of the probe.
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Affiliation(s)
| | - Kaveesha J Wijesinghe
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, USA
| | - Caroline B Plescia
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 47907, West Lafayette, Indiana, USA
| | - Lloyd S Fisher
- Department of Chemistry, University of Michigan, 48109, Ann Arbor, MI, USA
| | - Theodore Goodson
- Department of Chemistry, University of Michigan, 48109, Ann Arbor, MI, USA
| | - Robert V Stahelin
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 47907, West Lafayette, Indiana, USA
| | - Yi Pang
- Department of Chemistry, University of Akron, 44325, Akron, Ohio, USA. .,Maurice Morton Institute of Polymer Science, University of Akron, 44325, Akron, Ohio, USA.
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7
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de Almeida A, Bonsignore R. Fluorescent metal-based complexes as cancer probes. Bioorg Med Chem Lett 2020; 30:127219. [DOI: 10.1016/j.bmcl.2020.127219] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 02/09/2023]
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8
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Huo Z, Chen G, Geng Y, Cong L, Pan L, Xu W, Xu S. A two-photon fluorescence, carbonized polymer dot (CPD)-based, wide range pH nanosensor: a view from the surface state. NANOSCALE 2020; 12:9094-9103. [PMID: 32286603 DOI: 10.1039/d0nr01543a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A green-emitting, low-toxicity carbonized polymer dot (CPD) with a high fluorescence quantum yield was synthesised by a simple hydrothermal method, and has been applied as a three-mode pH indicator and the pH readouts involve the intensity ratio of the absorption bands, the single-photon fluorescence, and the two-photon fluorescence (TPF) signals. The pH sensing mechanism of this CPD is dependent on the hydrogen ion regulation on its surface states, which is evidenced for the first time by transient spectroscopy. The rich surface states of this CPD allow a wider pH-responsive range relative to other carbon nanodot-based pH nanosensors. Its ultra-small size, low cell toxicity, high brightness and stability are conducive to intracellular pH sensing under the TPF imaging. Our study is helpful for the development of novel carbon-based sensing materials based on the design of the surface states. It also provides a new candidate for up-conversion photoluminescence-responsive imaging agents and it has potential applications in the diagnosis and dynamic monitoring of cells relying on the pH evolution.
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Affiliation(s)
- Zepeng Huo
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
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9
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An JM, Kim SH, Kim D. Recent advances in two-photon absorbing probes based on a functionalized dipolar naphthalene platform. Org Biomol Chem 2020; 18:4288-4297. [PMID: 32242192 DOI: 10.1039/d0ob00515k] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Two-photon microscopy (TPM) techniques have been highlighted over the past two decades throughout various fields, including physics, chemistry, biology, and medicine. In particular, the two-photon near-infrared excitation of fluorophores or molecular probes emitting fluorescence have ushered in a new biomedical era, specifically in the deep-tissue imaging of biologically relevant species. Non-linear two-photon optics enables the development of 3D fluorescence images via focal point excitation of biological samples with low photo-damage and photo-bleaching. Many studies have disclosed the relationship between the chemical structure of fluorophores and their two-photon absorbing properties. In this review, we have summarized the recent advances in two-photon absorbing probes based on a functionalized electron donor (D)-acceptor (A) type dipolar naphthalene platform (FDNP) that was previously reported between 2015 and 2019. Our systematic outline of the synthesis, photophysical properties, and examples of two-photon imaging applications will provide useful context for the future development of new naphthalene backbone-based two-photon probes.
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Affiliation(s)
- Jong Min An
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea.
| | - Sung Hyun Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea. and Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea and Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, College of Medicine, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Dokyoung Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea. and Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, College of Medicine, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea and Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea and Center for Converging Humanities, Kyung Hee University, Seoul 02447, Republic of Korea
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10
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Marchetti M, Baria E, Cicchi R, Pavone FS. Custom Multiphoton/Raman Microscopy Setup for Imaging and Characterization of Biological Samples. Methods Protoc 2019; 2:E51. [PMID: 31226732 PMCID: PMC6632174 DOI: 10.3390/mps2020051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/12/2019] [Accepted: 06/18/2019] [Indexed: 12/11/2022] Open
Abstract
Modern optics offers several label-free microscopic and spectroscopic solutions which are useful for both imaging and pathological assessments of biological tissues. The possibility to obtain similar morphological and biochemical information with fast and label-free techniques is highly desirable, but no single optical modality is capable of obtaining all of the information provided by histological and immunohistochemical analyses. Integrated multimodal imaging offers the possibility of integrating morphological with functional-chemical information in a label-free modality, complementing the simple observation with multiple specific contrast mechanisms. Here, we developed a custom laser-scanning microscopic platform that combines confocal Raman spectroscopy with multimodal non-linear imaging, including Coherent Anti-Stokes Raman Scattering, Second-Harmonic Generation, Two-Photon Excited Fluorescence, and Fluorescence Lifetime Imaging Microscopy. The experimental apparatus is capable of high-resolution morphological imaging of the specimen, while also providing specific information about molecular organization, functional behavior, and molecular fingerprint. The system was successfully tested in the analysis of ex vivo tissues affected by urothelial carcinoma and by atherosclerosis, allowing us to multimodally characterize of the investigated specimen. Our results show a proof-of-principle demonstrating the potential of the presented multimodal approach, which could serve in a wide range of biological and biomedical applications.
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Affiliation(s)
- Marco Marchetti
- Department of Physics, University of Florence, 50019 Sesto Fiorentino, Italy.
| | - Enrico Baria
- National Institute of Optics, National Research Council (CNR-INO), 50019 Sesto Fiorentino, Italy.
| | - Riccardo Cicchi
- National Institute of Optics, National Research Council (CNR-INO), 50019 Sesto Fiorentino, Italy.
- European Laboratory for Non-linear Spectroscopy (LENS), 50019 Sesto Fiorentino, Italy.
| | - Francesco Saverio Pavone
- Department of Physics, University of Florence, 50019 Sesto Fiorentino, Italy.
- National Institute of Optics, National Research Council (CNR-INO), 50019 Sesto Fiorentino, Italy.
- European Laboratory for Non-linear Spectroscopy (LENS), 50019 Sesto Fiorentino, Italy.
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11
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Ricard C, Arroyo ED, He CX, Portera-Cailliau C, Lepousez G, Canepari M, Fiole D. Two-photon probes for in vivo multicolor microscopy of the structure and signals of brain cells. Brain Struct Funct 2018; 223:3011-3043. [PMID: 29748872 PMCID: PMC6119111 DOI: 10.1007/s00429-018-1678-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 05/03/2018] [Indexed: 02/07/2023]
Abstract
Imaging the brain of living laboratory animals at a microscopic scale can be achieved by two-photon microscopy thanks to the high penetrability and low phototoxicity of the excitation wavelengths used. However, knowledge of the two-photon spectral properties of the myriad fluorescent probes is generally scarce and, for many, non-existent. In addition, the use of different measurement units in published reports further hinders the design of a comprehensive imaging experiment. In this review, we compile and homogenize the two-photon spectral properties of 280 fluorescent probes. We provide practical data, including the wavelengths for optimal two-photon excitation, the peak values of two-photon action cross section or molecular brightness, and the emission ranges. Beyond the spectroscopic description of these fluorophores, we discuss their binding to biological targets. This specificity allows in vivo imaging of cells, their processes, and even organelles and other subcellular structures in the brain. In addition to probes that monitor endogenous cell metabolism, studies of healthy and diseased brain benefit from the specific binding of certain probes to pathology-specific features, ranging from amyloid-β plaques to the autofluorescence of certain antibiotics. A special focus is placed on functional in vivo imaging using two-photon probes that sense specific ions or membrane potential, and that may be combined with optogenetic actuators. Being closely linked to their use, we examine the different routes of intravital delivery of these fluorescent probes according to the target. Finally, we discuss different approaches, strategies, and prerequisites for two-photon multicolor experiments in the brains of living laboratory animals.
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Affiliation(s)
- Clément Ricard
- Brain Physiology Laboratory, CNRS UMR 8118, 75006, Paris, France
- Faculté de Sciences Fondamentales et Biomédicales, Université Paris Descartes, PRES Sorbonne Paris Cité, 75006, Paris, France
- Fédération de Recherche en Neurosciences FR 3636, Paris, 75006, France
| | - Erica D Arroyo
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, USA
| | - Cynthia X He
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, USA
| | - Carlos Portera-Cailliau
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, USA
- Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, USA
| | - Gabriel Lepousez
- Unité Perception et Mémoire, Département de Neuroscience, Institut Pasteur, 25 rue du Docteur Roux, 75724, Paris Cedex 15, France
| | - Marco Canepari
- Laboratory for Interdisciplinary Physics, UMR 5588 CNRS and Université Grenoble Alpes, 38402, Saint Martin d'Hères, France
- Laboratories of Excellence, Ion Channel Science and Therapeutics, Grenoble, France
- Institut National de la Santé et Recherche Médicale (INSERM), Grenoble, France
| | - Daniel Fiole
- Unité Biothérapies anti-Infectieuses et Immunité, Département des Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, BP 73, 91223, Brétigny-sur-Orge cedex, France.
- Human Histopathology and Animal Models, Infection and Epidemiology Department, Institut Pasteur, 28 rue du docteur Roux, 75725, Paris Cedex 15, France.
- ESRF-The European Synchrotron, 38043, Grenoble cedex, France.
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12
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Lei Z, Yue P, Wang X, Li X, Li Y, He H, Luo X, Meng X, Chen J, Qian X, Yang Y. TPZ, a bright centrosymmetric two-photon scaffold for bioimaging. Chem Commun (Camb) 2018; 53:10938-10941. [PMID: 28933460 DOI: 10.1039/c7cc06031a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of biocompatible two-photon fluorophores with a large absorption cross-section is challenging, despite the presence of theoretical guidelines. By rendering asymmetric PRODAN dye centrosymmetric, we designed and synthesized a novel class of two-photon fluorophores (TPZ). Their photophysical properties were investigated and their imaging potentials in cells, tissues and zebrafish were showcased.
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Affiliation(s)
- Zuhai Lei
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China.
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13
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Zhou Y, Ma C, Gao N, Wang Q, Lo PC, Wong KS, Xu QH, Kinoshita T, Ng DKP. Pyrrolopyrrole aza boron dipyrromethene based two-photon fluorescent probes for subcellular imaging. J Mater Chem B 2018; 6:5570-5581. [DOI: 10.1039/c8tb01832d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A series of two-photon-absorbing pyrrolopyrrole aza boron dipyrromethenes have been prepared which can serve as fluorescent probes for subcellular imaging.
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Affiliation(s)
- Yimin Zhou
- Department of Chemistry
- The Chinese University of Hong Kong
- Hong Kong
- China
| | - Chao Ma
- Department of Physics
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Nengyue Gao
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Qiong Wang
- Department of Biomedical Sciences
- City University of Hong Kong
- Kowloon
- China
| | - Pui-Chi Lo
- Department of Biomedical Sciences
- City University of Hong Kong
- Kowloon
- China
| | - Kam Sing Wong
- Department of Physics
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Qing-Hua Xu
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Takumi Kinoshita
- Department of General System Studies
- Graduate School of Arts and Sciences
- The University of Tokyo
- Meguro-ku
- Japan
| | - Dennis K. P. Ng
- Department of Chemistry
- The Chinese University of Hong Kong
- Hong Kong
- China
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14
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Xu F, Li H, Yao Q, Fan J, Wang J, Peng X. A NIR fluorescent probe: imaging endogenous hydrogen peroxide during an autophagy process induced by rapamycin. J Mater Chem B 2016; 4:7363-7367. [PMID: 32263736 DOI: 10.1039/c6tb02463g] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this work, a near-infrared probe (Cy-B) with high sensitivity, and good specificity as well as photo-stability has been developed for monitoring both exogenous and endogenous H2O2 in living cells. To the best of our knowledge, it was applied successfully for the first time to monitor spontaneous hydrogen peroxide in an autophagy process induced by the stimulation of rapamycin. The mice imaging experiments indicate that the probe has a good potential to be employed in the imaging of living biological systems.
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Affiliation(s)
- Feng Xu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China.
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15
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Zou X, Pan T, Chen L, Tian Y, Zhang W. Luminescence materials for pH and oxygen sensing in microbial cells - structures, optical properties, and biological applications. Crit Rev Biotechnol 2016; 37:723-738. [PMID: 27627832 DOI: 10.1080/07388551.2016.1223011] [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] [Indexed: 10/21/2022]
Abstract
Luminescence including fluorescence and phosphorescence sensors have been demonstrated to be important for studying cell metabolism, and diagnosing diseases and cancer. Various design principles have been employed for the development of sensors in different formats, such as organic molecules, polymers, polymeric hydrogels, and nanoparticles. The integration of the sensing with fluorescence imaging provides valuable tools for biomedical research and applications at not only bulk-cell level but also at single-cell level. In this article, we critically reviewed recent progresses on pH, oxygen, and dual pH and oxygen sensors specifically for their application in microbial cells. In addition, we focused not only on sensor materials with different chemical structures, but also on design and applications of sensors for better understanding cellular metabolism of microbial cells. Finally, we also provided an outlook for future materials design and key challenges in reaching broad applications in microbial cells.
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Affiliation(s)
- Xianshao Zou
- a Department of Materials Science and Engineering , South University of Science and Technology of China , Shenzhen , Guangdong , P.R. China
| | - Tingting Pan
- a Department of Materials Science and Engineering , South University of Science and Technology of China , Shenzhen , Guangdong , P.R. China
| | - Lei Chen
- b Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology , Tianjin University , Tianjin , P.R. China.,c Key Laboratory of Systems Bioengineering, Ministry of Education of China , Tianjin , P.R. China.,d SynBio Platform, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin , P.R. China
| | - Yanqing Tian
- a Department of Materials Science and Engineering , South University of Science and Technology of China , Shenzhen , Guangdong , P.R. China
| | - Weiwen Zhang
- b Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology , Tianjin University , Tianjin , P.R. China.,c Key Laboratory of Systems Bioengineering, Ministry of Education of China , Tianjin , P.R. China.,d SynBio Platform, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin , P.R. China
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16
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Niu W, Guo L, Li Y, Shuang S, Dong C, Wong MS. Highly Selective Two-Photon Fluorescent Probe for Ratiometric Sensing and Imaging Cysteine in Mitochondria. Anal Chem 2016; 88:1908-14. [PMID: 26717855 DOI: 10.1021/acs.analchem.5b04329] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A novel ratiometric mitochondrial cysteine (Cys)-selective two-photon fluorescence probe has been developed on the basis of a merocyanine as the fluorophore and an acrylate moiety as the biothiol reaction site. The biocompatible and photostable acrylate-functionalized merocyanine probe shows not only a mitochondria-targeting property but also highly selective detection and monitoring of Cys over other biothiols such as homocysteine (Hcy) and glutathione (GSH) and hydrogen sulfide (H2S) in live cells. In addition, this probe exhibits ratiometric fluorescence emission characteristics (F518/F452), which are linearly proportional to Cys concentrations in the range of 0.5-40 μM. More importantly, the probe and its released fluorophore, merocyanine, exhibit strong two-photon excited fluorescence (TPEF) with two-photon action cross-section (Φσmax) of 65.2 GM at 740 nm and 72.6 GM at 760 nm in aqueous medium, respectively, which is highly desirable for high contrast and brightness ratiometric two-photon fluorescence imaging of the living samples. The probe has been successfully applied to ratiometrically image and detect mitochondrial Cys in live cells and intact tissues down to a depth of 150 μm by two-photon fluorescence microscopy. Thus, this ratiometric two-photon fluorescent probe is practically useful for an investigation of Cys in living biological systems.
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Affiliation(s)
- Weifen Niu
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University , Taiyuan 030006, People's Republic of China
| | - Lei Guo
- Department of Chemistry and Institute of Molecular Functional Materials, Hong Kong Baptist University , Hong Kong SAR, People's Republic of China
| | - Yinhui Li
- Department of Chemistry and Institute of Molecular Functional Materials, Hong Kong Baptist University , Hong Kong SAR, People's Republic of China.,State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, People's Republic of China
| | - Shaomin Shuang
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University , Taiyuan 030006, People's Republic of China
| | - Chuan Dong
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University , Taiyuan 030006, People's Republic of China
| | - Man Shing Wong
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University , Taiyuan 030006, People's Republic of China.,Department of Chemistry and Institute of Molecular Functional Materials, Hong Kong Baptist University , Hong Kong SAR, People's Republic of China
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17
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18
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Lv Y, Liu P, Ding H, Wu Y, Yan Y, Liu H, Wang X, Huang F, Zhao Y, Tian Z. Conjugated Polymer-Based Hybrid Nanoparticles with Two-Photon Excitation and Near-Infrared Emission Features for Fluorescence Bioimaging within the Biological Window. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20640-20648. [PMID: 26340609 DOI: 10.1021/acsami.5b05150] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Hybrid fluorescent nanoparticles (NPs) capable of fluorescing near-infrared (NIR) light (centered ∼730 nm) upon excitation of 800 nm laser light were constructed. A new type of conjugated polymer with two-photon excited fluorescence (TPEF) feature, P-F8-DPSB, was used as the NIR-light harvesting component and the energy donor while a NIR fluorescent dye, DPA-PR-PDI, was used as the energy acceptor and the NIR-light emitting component for the construction of the fluorescent NPs. The hybrid NPs possess δ value up to 2.3 × 10(6) GM per particle upon excitation of 800 nm pulse laser. The excellent two-photon absorption (TPA) property of the conjugated polymer component, together with its high fluorescence quantum yield (ϕ) up to 45% and the efficient energy transfer from the conjugated polymer to NIR-emitting fluorophore with efficiency up to 90%, imparted the hybrid NPs with TPEF-based NIR-input-NIR-output fluorescence imaging ability with penetration depth up to 1200 μm. The practicability of the hybrid NPs for fluorescence imaging in Hela cells was validated.
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Affiliation(s)
- Yanlin Lv
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
| | - Peng Liu
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology , Guangzhou, 510640, China
| | - Hui Ding
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
| | - Yishi Wu
- Beijing National Laboratory for Molecular Science (BNLMS) and Key Laboratory for Photochemistry, Institute of Chemistry Chinese Academy of Sciences , Beijing, 100190, China
| | - Yongli Yan
- Beijing National Laboratory for Molecular Science (BNLMS) and Key Laboratory for Photochemistry, Institute of Chemistry Chinese Academy of Sciences , Beijing, 100190, China
| | - Heng Liu
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
| | - Xuefei Wang
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
| | - Fei Huang
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology , Guangzhou, 510640, China
| | - Yongsheng Zhao
- Beijing National Laboratory for Molecular Science (BNLMS) and Key Laboratory for Photochemistry, Institute of Chemistry Chinese Academy of Sciences , Beijing, 100190, China
| | - Zhiyuan Tian
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
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19
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Rocha DD, Espejo VR, Rainier JD, La Clair JJ, Costa-Lotufo LV. Fluorescent kapakahines serve as non-toxic probes for live cell Golgi imaging. Life Sci 2015; 136:163-7. [PMID: 26141988 DOI: 10.1016/j.lfs.2015.06.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 05/14/2015] [Accepted: 06/09/2015] [Indexed: 12/11/2022]
Abstract
AIMS There is an ongoing need for fluorescent probes that specifically-target select organelles within mammalian cells. This study describes the development of probes for the selective labeling of the Golgi apparatus and offers applications for live cell and fixed cell imaging. MAIN METHODS The kapakahines, characterized by a common C(3)-N(1') dimeric tryptophan linkage, comprise a unique family of bioactive marine depsipeptide natural products. We describe the uptake and subcellular localization of fluorescently-labeled analogs of kapakahine E. Using confocal microscopy, we identify a rapid and selective localization within the Golgi apparatus. Comparison with commercial Golgi stains indicates a unique localization pattern, which differs from currently available materials, therein offering a new tool to monitor the Golgi in live cells without toxic side effects. KEY FINDINGS This study identifies a fluorescent analog of kapakahine E that is rapidly uptaken in cells and localizes within the Golgi apparatus. SIGNIFICANCE The advance of microscopic methods is reliant on the parallel discovery of next generation molecular probes. This study describes the advance of stable and viable probe for staining the Golgi apparatus.
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Affiliation(s)
- Danilo D Rocha
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Vinson R Espejo
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT 84112, USA
| | - Jon D Rainier
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT 84112, USA.
| | - James J La Clair
- Xenobe Research Institute, P.O. Box 3052, San Diego, CA 92163-1052, USA.
| | - Letícia V Costa-Lotufo
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, CE, Brazil; Departamento de Farmacologia, Universidade de São Paulo, São Paulo, SP, Brazil.
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20
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Singha S, Kim D, Roy B, Sambasivan S, Moon H, Rao AS, Kim JY, Joo T, Park JW, Rhee YM, Wang T, Kim KH, Shin YH, Jung J, Ahn KH. A structural remedy toward bright dipolar fluorophores in aqueous media. Chem Sci 2015; 6:4335-4342. [PMID: 29218204 PMCID: PMC5707477 DOI: 10.1039/c5sc01076d] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 05/17/2015] [Indexed: 12/13/2022] Open
Abstract
The donor-acceptor (D-A) type dipolar fluorophores, an important class of luminescent dyes with two-photon absorption behaviour, generally emit strongly in organic solvents but poorly in aqueous media. To understand and enhance the poor emission behaviour of dipolar dyes in aqueous media, we undertake a rational approach that includes a systematic structure variation of the donor, amino substituent of acedan, an important two-photon dye. We identify several factors that influence the emission behaviour of the dipolar dyes in aqueous media through computational and photophysical studies on new acedan derivatives. As a result, we can make acedan dyes emit bright fluorescence under one- and two-photon excitation in aqueous media by suppressing the liable factors for poor emission: 1,3-allylic strain, rotational freedom, and hydrogen bonding with water. We also validate that these findings can be generally extended to other dipolar fluorophores, as demonstrated for naphthalimide, coumarin and (4-nitro-2,1,3-benzoxadiazol-7-yl)amine (NBD) dyes. The new acedan and naphthalimide dyes thus allow us to obtain much brighter two-photon fluorescent images in cells and tissues than in their conventional forms. As an application of these findings, a thiol probe is synthesized based on a new naphthalimide dye, which shows greatly enhanced fluorescence from the widely used N,N-dimethyl analogue. The results disclosed here provide essential guidelines for the development of efficient dipolar dyes and fluorescence probes for studying biological systems, particularly by two-photon microscopy.
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Affiliation(s)
- Subhankar Singha
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Dokyoung Kim
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Basab Roy
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Sunderraman Sambasivan
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Hyunsoo Moon
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Alla Sreenivasa Rao
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Jin Yong Kim
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Taiha Joo
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Jae Woo Park
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Young Min Rhee
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
| | - Taejun Wang
- Division of Integrative Biosciences and Bio-technology , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784
| | - Ki Hean Kim
- Division of Integrative Biosciences and Bio-technology , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784
| | - Youn Ho Shin
- Department of Anatomy and Neurobiology , School of Medicine , Biomedical Science Institute , Kyung Hee University , 26 Kyungheedae-Ro, Dongdaemun-Gu , Seoul , Republic of Korea 130-701
| | - Junyang Jung
- Department of Anatomy and Neurobiology , School of Medicine , Biomedical Science Institute , Kyung Hee University , 26 Kyungheedae-Ro, Dongdaemun-Gu , Seoul , Republic of Korea 130-701
| | - Kyo Han Ahn
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu , Pohang , Gyungbuk , Republic of Korea 790-784 .
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21
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Affiliation(s)
- Hwan Myung Kim
- Department of Chemistry & Energy Systems Research, Ajou University, Suwon 443-749, Korea
| | - Bong Rae Cho
- Department
of Chemistry, Korea University, 145, Anam-ro, Seoul 136-713, Korea
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22
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Liu Y, Liu Y, Liu W, Liang S. Two-photon fluorescent probe derived from naphthalimide for cysteine detection and imaging in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:509-515. [PMID: 25240143 DOI: 10.1016/j.saa.2014.08.072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 08/06/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
A maleimide coupling naphthalimide was reported as new two-photon fluorescent (TPF) probe for cysteine (Cys). The probe was weakly fluorescent itself due to the donor-excited photoinduced electron transfer (d-PET). After reaction with Cys, d-PET process was blocked and fluorescence enhancement of the probe was observed at 470 nm. The d-PET principle was rationalized by theoretical calculations with density functional theory and time-dependent density functional theory. Thiol-maleimide addition between the probe and Cys was confirmed by (1)H NMR and mass spectrum measurements. TPF analysis demonstrated a 24.7-fold emission increase of the probe induced by Cys upon excitation at 760 nm. The two-photon action cross-section of probe-Cys adduct at 760 nm reached 42 GM compared to 1.7 GM for free probe. The probe showed high sensitivity and selectivity to Cys over other potential interferences; especially it had the capability to discriminate Cys from glutathione and homocysteine. Through TPF imaging, the probe was successfully applied in the detection of Cys in living cells.
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Affiliation(s)
- Yanbin Liu
- Institute of Pharmaceutical Analysis, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, China
| | - Yuwen Liu
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Wei Liu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Shucai Liang
- Institute of Pharmaceutical Analysis, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, China.
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23
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Lee YH, Ren WX, Han J, Sunwoo K, Lim JY, Kim JH, Kim JS. Highly selective two-photon imaging of cysteine in cancerous cells and tissues. Chem Commun (Camb) 2015; 51:14401-4. [DOI: 10.1039/c5cc06038a] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Abnormal concentrations of Cys have been reported to be implicated in various health problems, including cancer, neuropathy, and cardiomyopathy.
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Affiliation(s)
- Yun Hak Lee
- Department of Chemistry
- Korea University
- Seoul 136-701
- Republic of Korea
| | - Wen Xiu Ren
- Department of Chemistry
- Korea University
- Seoul 136-701
- Republic of Korea
| | - Jiyou Han
- Division of Biotechnology
- Laboratory of Stem Cells and Tissue Regeneration
- College of Life Sciences & Biotechnology
- Korea University
- Seoul 136-713
| | - Kyoung Sunwoo
- Department of Chemistry
- Korea University
- Seoul 136-701
- Republic of Korea
| | - Ja-Yun Lim
- Division of Biotechnology
- Laboratory of Stem Cells and Tissue Regeneration
- College of Life Sciences & Biotechnology
- Korea University
- Seoul 136-713
| | - Jong-Hoon Kim
- Division of Biotechnology
- Laboratory of Stem Cells and Tissue Regeneration
- College of Life Sciences & Biotechnology
- Korea University
- Seoul 136-713
| | - Jong Seung Kim
- Department of Chemistry
- Korea University
- Seoul 136-701
- Republic of Korea
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24
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Lee JS, Yoo YH, Yoon CN. Small-molecule probes elucidate global enzyme activity in a proteomic context. BMB Rep 2014; 47:149-57. [PMID: 24499666 PMCID: PMC4163878 DOI: 10.5483/bmbrep.2014.47.3.264] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 12/19/2013] [Accepted: 12/20/2013] [Indexed: 12/05/2022] Open
Abstract
The recent dramatic improvements in high-resolution mass spectrometry (MS) have revolutionized the speed and scope of proteomic studies. Conventional MS-based proteomics methodologies allow global protein profiling based on expression levels. Although these techniques are promising, there are numerous biological activities yet to be unveiled, such as the dynamic regulation of enzyme activity. Chemical proteomics is an emerging field that extends these types proteomic profiling. In particular, activity-based protein profiling (ABPP) utilizes small-molecule probes to monitor enzyme activity directly in living intact subjects. In this mini-review, we summarize the unique roles of smallmolecule probes in proteomics studies and highlight some recent examples in which this principle has been applied. [BMB Reports 2014; 47(3): 149-157]
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Affiliation(s)
- Jun-Seok Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791; University of Science and Technology, Daejeon 305-333, Korea
| | - Young-Hwa Yoo
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea
| | - Chang No Yoon
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea
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25
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Sezgin E, Sadowski T, Simons K. Measuring lipid packing of model and cellular membranes with environment sensitive probes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:8160-6. [PMID: 24905799 DOI: 10.1021/la501226v] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The extent of lipid packing is one of the key physicochemical features of biological membranes and is involved in many membrane processes. Polarity sensitive fluorescent probes are commonly used tools to measure membrane lipid packing in both artificial and biological membranes. In this paper, we have systematically compared eight different probes to measure membrane lipid ordering. We investigated how these probes behave in small unilamellar liposomes, phase-separated giant unilamellar vesicles, cell-derived giant plasma membrane vesicles, and live cells. We have tested the order sensitivity of a variety of measurable parameters, including generalized polarization, peak shift, or intensity shift. We also investigated internalization and photostability of the probes to assess probe potential for time-lapse live cell imaging. These results provide a catalogue of properties to facilitate the choice of probe according to need.
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Affiliation(s)
- Erdinc Sezgin
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
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26
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Dai Y, Lv BK, Zhang XF, Xiao Y. A two-photon mitotracker based on a naphthalimide fluorophore: Synthesis, photophysical properties and cell imaging. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.05.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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