1
|
Li K, Wang Y, Li Y, Shi W, Yan J. Development of BODIPY-based fluorescent probes for imaging Aβ aggregates and lipid droplet viscosity. Talanta 2024; 277:126362. [PMID: 38843773 DOI: 10.1016/j.talanta.2024.126362] [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: 01/29/2024] [Revised: 04/16/2024] [Accepted: 06/03/2024] [Indexed: 07/19/2024]
Abstract
Alzheimer's disease (AD), gradually recognized as an untreatable neurodegenerative disorder, has been considered to be closely associated with Aβ plaques, which consist of β-amyloid protein (Aβ) and is one of the crucial pathological features of AD. There are no obvious symptoms in the initial phase of AD, and thus the therapeutic interventions are important for early diagnosis of AD. Moreover, recent researches have indicated that lipid droplets might serve as a potential ancillary biomarker, and its viscosity changes are closely associated to the pathological process of AD. Herein, two newly fluorescent probes 5QSZ and BQSZ have been developed and synthesized for identifying Aβ aggregates and detecting the viscosity of lipid droplet. After selectively binding to Aβ aggregates, 5QSZ and BQSZ exhibited linear and obvious fluorescence enhancements (32.58 and 36.70 folds), moderate affinity (Kd = 268.0 and 148.6 nM) and low detection limits (30.11 and 65.37 nM) in aqueous solutions. Further fluorescence staining of 5QSZ on brain tissue sections of APP/PS1 transgenic mouse exhibited the higher selectivity of 5QSZ towards Aβ aggregates locating at the core of the plaques. Furthermore, 5QSZ and BQSZ displayed strong linear fluorescence emission enhancements towards viscosity changes and would be utilized to monitor variation in cellular viscosity induced by LPS or monensin. These two probes were non-cytotoxic and showed good localization in lipid droplets. Therefore, 5QSZ and BQSZ could serve as potential bi-functional fluorescent probes to image Aβ aggregates and monitor the viscosity of lipid droplets, which have significant implications for the early diagnosis and progression of AD.
Collapse
Affiliation(s)
- Kaibo Li
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China
| | - Yuxuan Wang
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China
| | - Yanping Li
- School of Medicine, Foshan University, Foshan, 528225, PR China.
| | - Wenjing Shi
- Center for Advanced Analytical Science, Guangzhou Key Laboratory of Sensing Materials and Devices, Guangdong Engineering Technology Research Center for Photoelectric Sensing Materials and Devices, c/o School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, PR China.
| | - Jinwu Yan
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China.
| |
Collapse
|
2
|
Lehman VA, Ma Y, Scheerer JR. Construction of the 4-Azafluorenone Core in a Single Operation and Synthesis of Onychine. J Org Chem 2024; 89:11078-11082. [PMID: 39014934 DOI: 10.1021/acs.joc.4c01298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
This study describes the synthesis of the 4-azafluorenone core in a single operation using readily available starting materials. Condensation of an amidrazone with ninhydrin intercepts an intermediate 1,2,4-triazine derivative, which engages norbornadiene in a merged [4 + 2]/bis-retro[4 + 2] sequence to deliver the azafluorenone core. The tricyclic core established in this manner was elaborated to onychine, the simplest natural product in the 4-azafluorenone alkaloid family.
Collapse
Affiliation(s)
- Victoria A Lehman
- Department of Chemistry, College of William & Mary, P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Yun Ma
- Department of Chemistry, College of William & Mary, P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Jonathan R Scheerer
- Department of Chemistry, College of William & Mary, P.O. Box 8795, Williamsburg, Virginia 23187, United States
| |
Collapse
|
3
|
Sharma CP, Vyas A, Pandey P, Gupta S, Vats RP, Jaiswal SP, Bhatt MLB, Sachdeva M, Goel A. A new class of teraryl-based AIEgen for highly selective imaging of intracellular lipid droplets and its detection in advanced-stage human cervical cancer tissues. J Mater Chem B 2023; 11:9922-9932. [PMID: 37840367 DOI: 10.1039/d3tb01764h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Lipid droplets (LDs) have drawn much attention in recent years. They serve as the energy reservoir of cells and also play an important role in numerous physiological processes. Furthermore, LDs are found to be associated with several pathological conditions, including cancer and diabetes mellitus. Herein, we report a new class of teraryl-based donor-acceptor-appended aggregation-induced emission luminogen (AIEgen), 6a, for selective staining of intracellular LDs in in vitro live 3T3-L1 preadipocytes and the HeLa cancer cell line. In addition, AIEgen 6a was found to be capable of staining and quantifying the LD accumulation in the tissue sections of advanced-stage human cervical cancer patients. Unlike commercial LD staining dyes Nile Red, BODIPY and LipidTOX, AIEgen 6a showed a high Stokes shift (195 nm), a good fluorescence lifetime decay of 12.7 ns, and LD staining persisting for nearly two weeks.
Collapse
Affiliation(s)
- Chandra Prakash Sharma
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Akanksha Vyas
- Division of Endocrinology CSIR-Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Priyanka Pandey
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Shashwat Gupta
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Ravi Prakash Vats
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Sakshi Priya Jaiswal
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | | | - Monika Sachdeva
- Division of Endocrinology CSIR-Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Atul Goel
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| |
Collapse
|
4
|
Pigot C, Brunel D, Dumur F. Indane-1,3-Dione: From Synthetic Strategies to Applications. Molecules 2022; 27:5976. [PMID: 36144711 PMCID: PMC9501146 DOI: 10.3390/molecules27185976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/01/2022] [Accepted: 09/06/2022] [Indexed: 11/26/2022] Open
Abstract
Indane-1,3-dione is a versatile building block used in numerous applications ranging from biosensing, bioactivity, bioimaging to electronics or photopolymerization. In this review, an overview of the different chemical reactions enabling access to this scaffold but also to the most common derivatives of indane-1,3-dione are presented. Parallel to this, the different applications in which indane-1,3-dione-based structures have been used are also presented, evidencing the versatility of this structure.
Collapse
Affiliation(s)
- Corentin Pigot
- Aix Marseille Univ, CNRS, ICR, UMR 7273, F-13397 Marseille, France
| | - Damien Brunel
- Aix Marseille Univ, CNRS, ICR, UMR 7273, F-13397 Marseille, France
| | - Frédéric Dumur
- Aix Marseille Univ, CNRS, ICR, UMR 7273, F-13397 Marseille, France
| |
Collapse
|
5
|
Lai C, Zhao Y, Liang Y, Zou X, Lin W. BF 2 group chelated AIE fluorescent probe for polarity mapping of lipid droplets in cells and in vivo. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 268:120637. [PMID: 34840051 DOI: 10.1016/j.saa.2021.120637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/18/2021] [Accepted: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Lipid droplets (LDs), are multi-functional organelles with the storage of neutral lipids and proteins, participating in various of physiological processes. However, abnormal of LDs in morphology and numbers always lead to multiple diseases, including cancer, viral infection, obesity, inflammation. To better understand the physiological function of LDs in living cells, we designed two new fluorescent probes LDs-CA and LDs-BCA based on the triphenylamine and coumarin fluorophores to monitor LDs polarity and numbers variation in this work. The one-step strategy for the regulation of BF2 group realized a gratifying in emission wavelengths from orange fluorescence of LDs-CA to the red fluorescence of LDs-BCA, surprisingly. The two novel probes showed strong positive solvatochromism effect in different solvents and exhibited the aggregation-induced emission (AIE) effect. Based on the above excellent optical properties, LDs-CA and LDs-BCA were applied for imaging of the LDs with high overlap coefficient when co-stained with commercial dyes, respectively. The probes of LDs-CA and LDs-BCA provided an intuitive method to visualize the dynamic changes of LDs in morphology, size, and numbers under nutritionalstimulation, affording a powerful tool for fluorescence visualization of LDs related biological processes. Notably, the near-infrared emissive probe LDs-BCA successfully imaged the gastric fat in living obese mouse, which may provide a new idea for medical diagnostics.
Collapse
Affiliation(s)
- Chaofeng Lai
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China
| | - Yuping Zhao
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China
| | - Yun Liang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China
| | - Xiang Zou
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China
| | - Weiying Lin
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China.
| |
Collapse
|
6
|
Kole PB, Kollur SP, Revanasiddappa HD, Shivamallu C, Costa RA, Junior ESA, Anselmo LM, da Silva JN, Srinivasa C, Syed A, Singh FV. Structural, Electronic, Vibrational and Pharmacological Investigations of Highly Functionalized Diarylmethane Molecules Using DFT Calculations, Molecular Dynamics and Molecular Docking. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2041050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Priyanka B. Kole
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
| | - Shiva Prasad Kollur
- School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS), The University of the South Pacific, Suva, Fiji
- Department of Sciences, Amrita School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Mysuru, India
| | | | - Chandan Shivamallu
- Department of Biotechnology and Bioinformatics, Faculty of Life Sciences, JSS Academy of Higher Education and Research (JSSAHER), Mysuru, India
| | - Renyer A. Costa
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Earle S. A. Junior
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Lucas M. Anselmo
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Jonathas N. da Silva
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | | | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
| |
Collapse
|
7
|
Yin J, Huang L, Wu L, Li J, James TD, Lin W. Small molecule based fluorescent chemosensors for imaging the microenvironment within specific cellular regions. Chem Soc Rev 2021; 50:12098-12150. [PMID: 34550134 DOI: 10.1039/d1cs00645b] [Citation(s) in RCA: 192] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The microenvironment (local environment), including viscosity, temperature, polarity, hypoxia, and acidic-basic status (pH), plays indispensable roles in cellular processes. Significantly, organelles require an appropriate microenvironment to perform their specific physiological functions, and disruption of the microenvironmental homeostasis could lead to malfunctions of organelles, resulting in disorder and disease development. Consequently, monitoring the microenvironment within specific organelles is vital to understand organelle-related physiopathology. Over the past few years, many fluorescent probes have been developed to help reveal variations in the microenvironment within specific cellular regions. Given that a comprehensive understanding of the microenvironment in a particular cellular region is of great significance for further exploration of life events, a thorough summary of this topic is urgently required. However, there has not been a comprehensive and critical review published recently on small-molecule fluorescent chemosensors for the cellular microenvironment. With this review, we summarize the recent progress since 2015 towards small-molecule based fluorescent probes for imaging the microenvironment within specific cellular regions, including the mitochondria, lysosomes, lipid drops, endoplasmic reticulum, golgi, nucleus, cytoplasmic matrix and cell membrane. Further classifications at the suborganelle level, according to detection of microenvironmental factors by probes, including polarity, viscosity, temperature, pH and hypoxia, are presented. Notably, in each category, design principles, chemical synthesis, recognition mechanism, fluorescent signals, and bio-imaging applications are summarized and compared. In addition, the limitations of the current microenvironment-sensitive probes are analyzed and the prospects for future developments are outlined. In a nutshell, this review comprehensively summarizes and highlights recent progress towards small molecule based fluorescent probes for sensing and imaging the microenvironment within specific cellular regions since 2015. We anticipate that this summary will facilitate a deeper understanding of the topic and encourage research directed towards the development of probes for the detection of cellular microenvironments.
Collapse
Affiliation(s)
- Junling Yin
- Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, Shandong, People's Republic of China
| | - Ling Huang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530004, People's Republic of China.
| | - Luling Wu
- Department of Chemistry, University of Bath, Bath, BA2 7AY, UK.
| | - Jiangfeng Li
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530004, People's Republic of China.
| | - Tony D James
- Department of Chemistry, University of Bath, Bath, BA2 7AY, UK. .,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, People's Republic of China
| | - Weiying Lin
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530004, People's Republic of China.
| |
Collapse
|
8
|
Subashini C, Kennedy LJ, Singh FV. Synthesis, spectral characterization and photophysical studies of tetrahydroquinolines. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
9
|
V. Singh F, B. Kole P. Recent Development on the Ring Transformation Reactions: Synthesis of Functionalized Benzenes, N-Heterocycles and Fused Ring Systems. HETEROCYCLES 2021. [DOI: 10.3987/rev-20-sr(k)8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
10
|
Metal-free synthesis and characterization of 1,3-Bis(heteroaryl)benzenes followed by the photophysical studies using ultraviolet–visible and fluorescence spectroscopy. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128633] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
11
|
Medeiros IR, Corrêa JR, Barbosa ALA, Krüger R, Balaguez RA, Lopes TO, de Oliveira HCB, Alves D, Neto BAD. Fluorescent Benzoselenadiazoles: Synthesis, Characterization, and Quantification of Intracellular Lipid Droplets and Multicellular Model Staining. J Org Chem 2020; 85:10561-10573. [PMID: 32806092 DOI: 10.1021/acs.joc.0c01031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work, we described the synthesis of 10 new fluorescent 2,1,3-benzoselenadiazole small-molecule derivatives and their chemical- and photocharacterizations. The new derivatives could, for the first time, be successfully applied as selective live cell imaging probes (at nanomolar concentrations) and stained lipid-based structures preferentially. Density functional theory (DFT) calculations were used to help in understanding the photophysical data and the intramolecular charge-transfer (ICT) processes of the synthesized dyes. Some derivatives showed impressive cellular responses, allowing them to be tested as probes in a complex multicellular model (i.e., Caenorhabditis elegans). When compared with the commercially available dye, the new fluorescent compounds showed far better results both at the cellular level and inside the live worm. Inside the multicellular complex model, the tested probes also showed selectivity, a feature not observed when the commercial dye was used to carry out the bioimaging experiments.
Collapse
Affiliation(s)
- Ingryd R Medeiros
- Laboratory of Medicinal and Technological Chemistry, University of Brası́lia (IQ-UnB), Campus Universita'rio Darcy Ribeiro, CEP, Brasília-DF 70904970, Brazil
| | - José R Corrêa
- Laboratory of Medicinal and Technological Chemistry, University of Brası́lia (IQ-UnB), Campus Universita'rio Darcy Ribeiro, CEP, Brasília-DF 70904970, Brazil
| | - Ana L A Barbosa
- Laboratory of Medicinal and Technological Chemistry, University of Brası́lia (IQ-UnB), Campus Universita'rio Darcy Ribeiro, CEP, Brasília-DF 70904970, Brazil
| | - Roberta Krüger
- LASOL-CCQFA, Federal University of Pelotas (UFPel), Pelotas, RS 96010-610, Brazil
| | - Renata A Balaguez
- LASOL-CCQFA, Federal University of Pelotas (UFPel), Pelotas, RS 96010-610, Brazil
| | - Thiago O Lopes
- Laboratory of Medicinal and Technological Chemistry, University of Brası́lia (IQ-UnB), Campus Universita'rio Darcy Ribeiro, CEP, Brasília-DF 70904970, Brazil
| | - Heibbe C B de Oliveira
- Laboratory of Medicinal and Technological Chemistry, University of Brası́lia (IQ-UnB), Campus Universita'rio Darcy Ribeiro, CEP, Brasília-DF 70904970, Brazil.,Laboratório de Estrutura Eletrônica e Dinâmica Molecular (LEEDMOL), Instituto de Quı́mica, Universidade Federal de Goiás, Goiânia 74690-900, Brazil
| | - Diego Alves
- LASOL-CCQFA, Federal University of Pelotas (UFPel), Pelotas, RS 96010-610, Brazil
| | - Brenno A D Neto
- Laboratory of Medicinal and Technological Chemistry, University of Brası́lia (IQ-UnB), Campus Universita'rio Darcy Ribeiro, CEP, Brasília-DF 70904970, Brazil
| |
Collapse
|
12
|
Dual-functional AIE fluorescent probes for imaging β-amyloid plaques and lipid droplets. Anal Chim Acta 2020; 1133:109-118. [PMID: 32993862 DOI: 10.1016/j.aca.2020.07.073] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 07/17/2020] [Accepted: 07/30/2020] [Indexed: 12/31/2022]
Abstract
Alzheimer's disease (AD) is a chronic neurodegenerative disease. Better imaging and early diagnosis of biomarkers of AD is extremely important for therapeutic interventions. The amyloid cascade hypothesis and its revised version identify insoluble β-amyloid deposition as a good diagnostic biomarker for AD. Moreover, lipid droplets may also act as an auxiliary biomarker related to AD pathology based on recent studies. Herein, two quinoline-based AIE probes were designed and synthesized for the imaging of Aβ plaques and lipid droplets. The probes exhibited remarkable turn-on fluorescence enhancements with the Aβ aggregates. The lipid droplets-targeting probe FB exhibited high selectivity and binding affinity towards the Aβ aggregates with a detection limit as low as 26.9 nM. Furthermore, FB was capable of readily imaging Aβ plaques and lipid droplets at the cellular level and in brain sections of transgenic AD mice. The probe FB can serve as a promising tool for developing early diagnosis and innovative therapeutics of AD.
Collapse
|
13
|
Angello NH, Wiley RE, Abelt CJ, Scheerer JR. Synthesis and Spectrophotometric Analysis of 1-Azafluorenone Derivatives. Molecules 2020; 25:molecules25153358. [PMID: 32722081 PMCID: PMC7436005 DOI: 10.3390/molecules25153358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 11/16/2022] Open
Abstract
A new extension for the 'one pot' construction of diverse 1-azafluorene derivatives featuring a Diels-Alder/retro-Diels-Alder cycloaddition is reported. Conditions were also determined for oxidation to the derived azafluorenones. The spectrophotometric analysis of five different azafluorenones were performed. Moderate fluorescence was observed with azafluorenone derivatives that bear an imbedded pyridone motif; whereas those bearing substituted pyridines do not fluoresce.
Collapse
|
14
|
Chandrasekar S, Singh FV. Metal‐Free Synthesis of Thermally Stable Fluorescent
p
‐Terphenyls by Ring Transformation of 2
H
‐Pyran‐2‐ones. ChemistrySelect 2020. [DOI: 10.1002/slct.202001502] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Subashini Chandrasekar
- Chemistry Division, School of Advanced Sciences VIT University, Chennai Campus Chennai 600127, Tamil Nadu India
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Sciences VIT University, Chennai Campus Chennai 600127, Tamil Nadu India
| |
Collapse
|
15
|
Shetgaonkar SE, Singh FV. Base-mediated alternate route for multi-functionalized allylbenzenes using ring transformation strategy. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1782430] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Samata E. Shetgaonkar
- Chemistry Division, School of Advanced Sciences, VIT University, Chennai, Tamil Nadu, India
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Sciences, VIT University, Chennai, Tamil Nadu, India
| |
Collapse
|
16
|
Li G, Li J, Otsuka Y, Zhang S, Takahashi M, Yamada K. A BODIPY-Based Fluorogenic Probe for Specific Imaging of Lipid Droplets. MATERIALS 2020; 13:ma13030677. [PMID: 32028677 PMCID: PMC7040634 DOI: 10.3390/ma13030677] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/01/2020] [Accepted: 02/01/2020] [Indexed: 11/24/2022]
Abstract
We developed an easily accessible boron-dipyrromethene (BODIPY)-based fluorogenic probe, which we named LD-TB. This probe emits bright fluorescence in oil; when compared with aqueous solution, a significant enhancement of fluorescence brightness is observed. Cellular experiments confirmed that the probe stains the lipid droplets (LDs) specifically in both live and fixed cells, providing background-free images. Compared with Nile Red dye, a commonly used LD marker, LD-TB showed superior photostability. The sharp absorption and emission bands enable its multicolor imaging with blue and green probes. Importantly, the probe has proved to have low toxicity and is compatible with cell fixation. Our research provides a promising new fluorogenic probe for specific imaging of LDs.
Collapse
Affiliation(s)
- Guanglei Li
- Division of Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 0860-0810, Japan; (Y.O.); (S.Z.)
- Correspondence: (G.L.); (K.Y.); Tel.: +81-011-706-2254 (K.Y.)
| | - Jianye Li
- Laboratory of Animal Genetics and Reproduction, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan;
| | - Yu Otsuka
- Division of Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 0860-0810, Japan; (Y.O.); (S.Z.)
| | - Shuai Zhang
- Division of Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 0860-0810, Japan; (Y.O.); (S.Z.)
| | - Masashi Takahashi
- Laboratory of Animal Genetics and Reproduction, Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan;
- Graduate School of Global Food Resources/Global Station for Food, Land and Water Resources, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo 060-8589, Japan
| | - Koji Yamada
- Division of Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 0860-0810, Japan; (Y.O.); (S.Z.)
- Correspondence: (G.L.); (K.Y.); Tel.: +81-011-706-2254 (K.Y.)
| |
Collapse
|
17
|
Laohapaisan P, Chuangsoongnern P, Tummatorn J, Thongsornkleeb C, Ruchirawat S. Divergent Synthesis of 3-Hydroxyfluorene and 4-Azafluorene Derivatives from ortho-Alkynylarylketones. J Org Chem 2019; 84:14451-14460. [DOI: 10.1021/acs.joc.9b01825] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Pavitra Laohapaisan
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Pennapa Chuangsoongnern
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Jumreang Tummatorn
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Charnsak Thongsornkleeb
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| |
Collapse
|
18
|
Wang X, Zuo Y, Zhang Y, Yang T, Lin W. Triphenylamine Schiff base as a lipid droplet-targeted fluorescent probe using Si-O-Si as a bridge for the detection of Cr 6+ applied in bio-imaging. Analyst 2019; 144:5373-5377. [PMID: 31386702 DOI: 10.1039/c9an01174a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lipid droplets are known to play an important role in many cellular activities, as revealed by recent studies. Additionally, hexavalent chromium is considered extremely toxic because it readily passes through cellular membranes and easily accumulates in living cells. In this study, a novel lipid droplet-targeted fluorescent probe (Si-LDS) for recognition of Cr6+ in living cells was designed and synthesized using triphenylamine derivatives and organosiloxane. Si-LDS detected Cr6+ with high selectivity and sensitivity. The novel probe was successfully applied to cell imaging of exogenous Cr6+ in HeLa cells, and Si-LDS was able to localize mainly in the lipid droplets of HeLa cells. Si-LDS is the first lipid droplet-targeted fluorescent probe for monitoring Cr6+.
Collapse
Affiliation(s)
- Xiaoni Wang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Shandong 250022, P.R. China.
| | | | | | | | | |
Collapse
|
19
|
Ye Y, Liu H, Li Y, Zhuang Q, Liu P, Gu J. One-pot doping platinum porphyrin recognition centers in Zr-based MOFs for ratiometric luminescent monitoring of nitric oxide in living cells. Talanta 2019; 200:472-479. [PMID: 31036211 DOI: 10.1016/j.talanta.2019.01.086] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/10/2019] [Accepted: 01/19/2019] [Indexed: 01/13/2023]
Abstract
A new kind of nanoscale MOFs probe for nitric oxide (NO) sensing has been successfully constructed by a one-pot strategy, in which the chemically stable UiO-66 crystal structure was achieved using platinum meso-tetra(4-carboxyphenyl)porphyrin (Pt-TCPP), 1,1,2,2-Tetra(4-carboxylphenyl)ethylene (H4TCPE) and 1,4-dicarboxybenzene (BDC) as co-linkers (Pt-TCPP/H4TCPE@UiO-66). Pt-TCPP was verified to serve as a signal reporter in NO sensing fields for the first time while H4TCPE worked as a luminescence reference to build a ratiometric sensor. The integration of luminescent dyes in nanoscale MOFs effectively avoided their aggregation-caused quenching effect and poor aqueous dispersibility to rationalize NO detection in the aqueous phase. The obtained Pt-TCPP/H4TCPE@UiO-66 nanoparticles (NPs) exhibited an excellent sensing property toward NO with an ultrahigh linear correlation of the Stern-Volmer equation and a rapid response time as short as 2 min. Moreover, the elaborated sensor could work under a wide pH window (7.4, 5.6 and 0) and the limit of detection (LOD) reached as low as 0.1420 µg mL-1. The specificity of the obtained Pt-TCPP/H4TCPE@UiO-66 NPs toward NO sensing was scarcely affected by other possibly coexistent species in biological system. The in vitro monitoring for NO in living cells was also testified with these Pt-TCPP/H4TCPE@UiO-66 NPs.
Collapse
Affiliation(s)
- Yunxi Ye
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongmei Liu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine Shanghai Jiaotong University, Shanghai 200032, China
| | - Yongsheng Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qixin Zhuang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Peifeng Liu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine Shanghai Jiaotong University, Shanghai 200032, China.
| | - Jinlou Gu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| |
Collapse
|
20
|
Divya TT, Raghav D, Rathinasamy K, Chakkumkumarath L. Multifunctional fluorescent leucomalachite green derivatives for chemodosimetric detection of Fe3+, specific imaging of lipid droplets and intracellular pH monitoring. NEW J CHEM 2019. [DOI: 10.1039/c9nj04267a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fluorescent leucomalachite green derivatives detect micromolar concentrations of Fe3+, specifically stain lipid droplets in live cells and monitor intracellular pH variations in microorganisms.
Collapse
Affiliation(s)
| | - Darpan Raghav
- School of Biotechnology
- National Institute of Technology Calicut
- India
| | | | | |
Collapse
|
21
|
Orrego-Hernández J, Lizarazo C, Cobo J, Portilla J. Pyrazolo-fused 4-azafluorenones as key reagents for the synthesis of fluorescent dicyanovinylidene-substituted derivatives. RSC Adv 2019; 9:27318-27323. [PMID: 35529179 PMCID: PMC9070601 DOI: 10.1039/c9ra04682h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 08/24/2019] [Indexed: 12/21/2022] Open
Abstract
A green method for the three-component synthesis of an indeno[1,2-b]pyrazolo[4,3-e]pyridines library under microwave irradiation and their use in the preparation of novel fluorescent dicyanovinylidene-substituted derivatives is provided.
Collapse
Affiliation(s)
- Jessica Orrego-Hernández
- Bioorganic Compounds Research Group
- Department of Chemistry
- Universidad de los Andes
- Bogotá 111711
- Colombia
| | - Carolina Lizarazo
- Bioorganic Compounds Research Group
- Department of Chemistry
- Universidad de los Andes
- Bogotá 111711
- Colombia
| | - Justo Cobo
- Departamento de Química Orgánica e Inorgánica
- Universidad de Jaén
- 23071 Jaén
- Spain
| | - Jaime Portilla
- Bioorganic Compounds Research Group
- Department of Chemistry
- Universidad de los Andes
- Bogotá 111711
- Colombia
| |
Collapse
|
22
|
Sharma A, Jha AK, Mishra S, Jain A, Chauhan BS, Kathuria M, Rawat KS, Gupta NM, Tripathi R, Mitra K, Sachdev M, Bhatt MLB, Goel A. Imaging and Quantitative Detection of Lipid Droplets by Yellow Fluorescent Probes in Liver Sections of Plasmodium Infected Mice and Third Stage Human Cervical Cancer Tissues. Bioconjug Chem 2018; 29:3606-3613. [DOI: 10.1021/acs.bioconjchem.8b00552] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Ashutosh Sharma
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ajay K. Jha
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Shachi Mishra
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ankita Jain
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Bhavana S. Chauhan
- Parasitology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Manoj Kathuria
- Electron Microscopy Unit, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Kundan S. Rawat
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific
and Innovative Research, Ghaziabad 201 002, India
| | - Neeraj M. Gupta
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Renu Tripathi
- Parasitology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Kalyan Mitra
- Electron Microscopy Unit, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Monika Sachdev
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Madan L. B. Bhatt
- Department of Radiotherapy, King George’s Medical University, Lucknow 226003, India
| | - Atul Goel
- Fluorescent Chemistry Lab, Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific
and Innovative Research, Ghaziabad 201 002, India
| |
Collapse
|
23
|
Fam TK, Klymchenko AS, Collot M. Recent Advances in Fluorescent Probes for Lipid Droplets. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1768. [PMID: 30231571 PMCID: PMC6163203 DOI: 10.3390/ma11091768] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/14/2018] [Accepted: 09/14/2018] [Indexed: 12/15/2022]
Abstract
Lipid droplets (LDs) are organelles that serve as the storage of intracellular neutral lipids. LDs regulate many physiological processes. They recently attracted attention after extensive studies showed their involvement in metabolic disorders and diseases such as obesity, diabetes, and cancer. Therefore, it is of the highest importance to have reliable imaging tools. In this review, we focus on recent advances in the development of selective fluorescent probes for LDs. Their photophysical properties are described, and their advantages and drawbacks in fluorescence imaging are discussed. At last, we review the reported applications using these probes including two-photon excitation, in vivo and tissue imaging, as well as LDs tracking.
Collapse
Affiliation(s)
- Tkhe Kyong Fam
- Nanochemistry and Bioimaging Group, Laboratoire de Bioimagerie et Pathologies, CNRS UMR 7021, Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France.
| | - Andrey S Klymchenko
- Nanochemistry and Bioimaging Group, Laboratoire de Bioimagerie et Pathologies, CNRS UMR 7021, Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France.
| | - Mayeul Collot
- Nanochemistry and Bioimaging Group, Laboratoire de Bioimagerie et Pathologies, CNRS UMR 7021, Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France.
| |
Collapse
|
24
|
Ye F, Tran C, Jullien L, Le Saux T, Haddad M, Michelet V, Ratovelomanana-Vidal V. Synthesis of Fluorescent Azafluorenones and Derivatives via a Ruthenium-Catalyzed [2 + 2 + 2] Cycloaddition. Org Lett 2018; 20:4950-4953. [PMID: 30070483 DOI: 10.1021/acs.orglett.8b02085] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An original and mild synthetic route for the preparation of novel azafluorenones and derivatives via a ruthenium-mediated [2 + 2 + 2] cycloaddition of α,ω-diynes and cyanamides has been developed. This atom-economical catalytic process demonstrated remarkable regioselectivities to access fluorescent azafluorenone derivatives. The photophysical properties of azafluorenone derivatives have been evaluated, and photoluminescence phenomena at solid and liquid states have been highlighted.
Collapse
Affiliation(s)
- Fei Ye
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris , Paris 75005 , France
| | - Christine Tran
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris , Paris 75005 , France
| | - Ludovic Jullien
- PASTEUR, Chemistry Department , École Normale Supérieure, PSL University, Sorbonne University, CNRS , Paris 75005 , France
| | - Thomas Le Saux
- PASTEUR, Chemistry Department , École Normale Supérieure, PSL University, Sorbonne University, CNRS , Paris 75005 , France
| | - Mansour Haddad
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris , Paris 75005 , France
| | - Véronique Michelet
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris , Paris 75005 , France
| | | |
Collapse
|
25
|
Choi P, Noguchi K, Ishiyama M, Denny WA, Jose J. A mitochondria-selective near-infrared-emitting fluorescent dye for cellular imaging studies. Bioorg Med Chem Lett 2018; 28:2013-2017. [PMID: 29731365 DOI: 10.1016/j.bmcl.2018.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/26/2018] [Accepted: 05/01/2018] [Indexed: 12/22/2022]
Abstract
This communication details the synthesis, evaluation of photophysical properties, and cellular imaging studies of cyanine chromophore based fluorescent dye 1 as a selective imaging agent for mitochondria.
Collapse
Affiliation(s)
- Peter Choi
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Katsuya Noguchi
- Dojindo Laboratories Co., Ltd, Techno-Research Park Tabaru 2025-5 Mashiki-machi, Kamimashiki-gun, 861-2202, Japan
| | - Munetaka Ishiyama
- Dojindo Laboratories Co., Ltd, Techno-Research Park Tabaru 2025-5 Mashiki-machi, Kamimashiki-gun, 861-2202, Japan
| | - William A Denny
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Jiney Jose
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| |
Collapse
|
26
|
Becerra-Ruiz M, Vargas V, Jara P, Tirapegui C, Carrasco C, Nuñez M, Lezana N, Galdámez A, Vilches-Herrera M. Blue-Fluorescent Probes for Lipid Droplets Based on Dihydrochromeno-Fused Pyrazolo- and Pyrrolopyridines. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701633] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Martín Becerra-Ruiz
- Department of Chemistry; Faculty of Sciences; University of Chile; Las Palmeras 3425, Nunoa 7500008 Santiago Chile
| | - Victor Vargas
- Department of Chemistry; Faculty of Sciences; University of Chile; Las Palmeras 3425, Nunoa 7500008 Santiago Chile
| | - Patricio Jara
- Department of Chemistry; Faculty of Sciences; University of Chile; Las Palmeras 3425, Nunoa 7500008 Santiago Chile
| | - Cristian Tirapegui
- Faculty of Chemistry and Biology; University of Santiago de Chile; Av. Lib. Bernardo O' Higgins 3363, Est. Central Santiago Chile
- Instituto de Ciencias Químicas Aplicadas; Facultad de Ingeniería; Universidad Autónoma de Chile; El Llano Subercaseaux 2801, San Miguel Santiago Chile
| | - Carlos Carrasco
- Department of Biology; Faculty of Sciences; University of Chile; Las Palmeras 3425, Nunoa 7500008 Santiago Chile
| | - Marco Nuñez
- Department of Biology; Faculty of Sciences; University of Chile; Las Palmeras 3425, Nunoa 7500008 Santiago Chile
| | - Nicolás Lezana
- Department of Chemistry; Faculty of Sciences; University of Chile; Las Palmeras 3425, Nunoa 7500008 Santiago Chile
| | - Antonio Galdámez
- Department of Chemistry; Faculty of Sciences; University of Chile; Las Palmeras 3425, Nunoa 7500008 Santiago Chile
| | - Marcelo Vilches-Herrera
- Department of Chemistry; Faculty of Sciences; University of Chile; Las Palmeras 3425, Nunoa 7500008 Santiago Chile
| |
Collapse
|
27
|
Mishra S, Awasthi P, Singh J, Gupta RK, Singh V, Kant R, Jeet R, Goswami D, Goel A. White Light Induced E/Z-Photoisomerization of Diphenylamine-Tethered Fluorescent Stilbene Derivatives: Synthesis, Photophysical, and Electrochemical Investigation. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shachi Mishra
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Pallavi Awasthi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Jagriti Singh
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Rahul Kumar Gupta
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Vikram Singh
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ruchir Kant
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ram Jeet
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Debabrata Goswami
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Atul Goel
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| |
Collapse
|
28
|
Collot M, Fam TK, Ashokkumar P, Faklaris O, Galli T, Danglot L, Klymchenko AS. Ultrabright and Fluorogenic Probes for Multicolor Imaging and Tracking of Lipid Droplets in Cells and Tissues. J Am Chem Soc 2018; 140:5401-5411. [PMID: 29446627 DOI: 10.1021/jacs.7b12817] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Lipid droplets (LDs) are intracellular lipid-rich organelles that regulate the storage of neutral lipids and were recently found to be involved in many physiological processes, metabolic disorders, and diseases including obesity, diabetes, and cancers. Herein we present a family of new fluorogenic merocyanine fluorophores based on an indolenine moiety and a dioxaborine barbiturate derivative. These so-called StatoMerocyanines (SMCy) fluoresce from yellow to the near-infrared (NIR) in oil with an impressive fluorescence enhancement compared to aqueous media. Additionally, SMCy display remarkably high molar extinction coefficients (up to 390 000 M-1 cm-1) and high quantum yield values (up to 100%). All the members of this new family specifically stain the LDs in live cells with very low background noise. Unlike Nile Red, a well-known lipid droplet marker, SMCy dyes possess narrow absorption and emission bands in the visible, thus allowing multicolor imaging. SMCy proved to be compatible with fixation and led to high-quality 3D images of lipid droplets in cells and tissues. Their high brightness allowed efficient tissue imaging of adipocytes and circulating LDs. Moreover their remarkably high two-photon absorption cross-section, especially SMCy5.5 (up to 13 300 GM), as well as their capacity to efficiently fluoresce in the NIR region led to two-photon multicolor tissue imaging (liver). Taking advantage of the available color palette, lipid droplet exchange between cells was tracked and imaged, thus demonstrating intercellular communication.
Collapse
Affiliation(s)
- Mayeul Collot
- Laboratoire de Biophotonique et Pharmacologie, CNRS UMR 7213 , Université de Strasbourg, Faculté de Pharmacie , 74, Route du Rhin , 67401 Illkirch , France
| | - Tkhe Kyong Fam
- Laboratoire de Biophotonique et Pharmacologie, CNRS UMR 7213 , Université de Strasbourg, Faculté de Pharmacie , 74, Route du Rhin , 67401 Illkirch , France
| | - Pichandi Ashokkumar
- Laboratoire de Biophotonique et Pharmacologie, CNRS UMR 7213 , Université de Strasbourg, Faculté de Pharmacie , 74, Route du Rhin , 67401 Illkirch , France
| | - Orestis Faklaris
- ImagoSeine Core Facility, Institut Jacques Monod , Université Paris Diderot/CNRS, UMR 7593 , 15 Rue Hélène Brion , 75205 Paris CEDEX 13 , France
| | - Thierry Galli
- INSERM U894 , Centre de Psychiatrie et Neurosciences, "Membrane Traffic in Health and Diseased Brain" Team , 102-108 Rue de la Santé , 75014 Paris , France.,Université Paris Descartes , 75014 Paris , France
| | - Lydia Danglot
- INSERM U894 , Centre de Psychiatrie et Neurosciences, "Membrane Traffic in Health and Diseased Brain" Team , 102-108 Rue de la Santé , 75014 Paris , France.,Université Paris Descartes , 75014 Paris , France
| | - Andrey S Klymchenko
- Laboratoire de Biophotonique et Pharmacologie, CNRS UMR 7213 , Université de Strasbourg, Faculté de Pharmacie , 74, Route du Rhin , 67401 Illkirch , France
| |
Collapse
|
29
|
Chen Y, Wei XR, Sun R, Xu YJ, Ge JF. The fluorescent biomarkers for lipid droplets with quinolone-coumarin unit. Org Biomol Chem 2018; 16:7619-7625. [DOI: 10.1039/c8ob02047g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Two dyes with high quantum yields were designed and synthesized for imaging lipid droplets in living and fixed cells.
Collapse
Affiliation(s)
- Yuan Chen
- College of Chemistry
- Chemical Engineering and Material Science
- Soochow University
- Suzhou 215123
- China
| | - Xue-Rui Wei
- Technology School of Radiation Medicine and Protection
- Medical College of Soochow University
- School for Radiological and Interdisciplinary Sciences (RAD-X)
- Soochow University
- Suzhou 215123
| | - Ru Sun
- College of Chemistry
- Chemical Engineering and Material Science
- Soochow University
- Suzhou 215123
- China
| | - Yu-Jie Xu
- Technology School of Radiation Medicine and Protection
- Medical College of Soochow University
- School for Radiological and Interdisciplinary Sciences (RAD-X)
- Soochow University
- Suzhou 215123
| | - Jian-Feng Ge
- College of Chemistry
- Chemical Engineering and Material Science
- Soochow University
- Suzhou 215123
- China
| |
Collapse
|
30
|
Wu A, Kolanowski JL, Boumelhem BB, Yang K, Lee R, Kaur A, Fraser ST, New EJ, Rendina LM. A Carborane-Containing Fluorophore as a Stain of Cellular Lipid Droplets. Chem Asian J 2017. [PMID: 28640518 DOI: 10.1002/asia.201700423] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The use of fluorescent markers and probes greatly enhances biological investigations but relies on the provision of an array of fluorophores with diverse properties. Herein we report a novel carborane-containing coumarin, 5, which is sufficiently lipophilic to localise in cellular lipid droplets. In non-polar solvents which show comparable polarities to those of a lipid environment, compound 5 exhibits a fluorescence quantum yield two orders of magnitude greater than found in aqueous solvents, adding a further degree of selectivity to lipid droplet imaging. Compound 5 can stain lipid droplets in ex vivo adipocytes as well as in cultured cells, and can be utilised in flow cytometry as well as confocal microscopy.
Collapse
Affiliation(s)
- Andrew Wu
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Jacek L Kolanowski
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Badwi B Boumelhem
- Discipline of Physiology, School of Medical Sciences, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Kylie Yang
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Rebecca Lee
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Amandeep Kaur
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Stuart T Fraser
- Discipline of Physiology, School of Medical Sciences, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Elizabeth J New
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Louis M Rendina
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| |
Collapse
|
31
|
Appelqvist H, Stranius K, Börjesson K, Nilsson KPR, Dyrager C. Specific Imaging of Intracellular Lipid Droplets Using a Benzothiadiazole Derivative with Solvatochromic Properties. Bioconjug Chem 2017; 28:1363-1370. [DOI: 10.1021/acs.bioconjchem.7b00048] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Hanna Appelqvist
- Department
of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Kati Stranius
- Department
of Chemistry and Molecular Biology, University of Gothenburg, 412 96 Göteborg, Sweden
| | - Karl Börjesson
- Department
of Chemistry and Molecular Biology, University of Gothenburg, 412 96 Göteborg, Sweden
| | - K. Peter. R. Nilsson
- Department
of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Christine Dyrager
- Department
of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| |
Collapse
|
32
|
Öberg E, Appelqvist H, Nilsson KPR. Non-fused Phospholes as Fluorescent Probes for Imaging of Lipid Droplets in Living Cells. Front Chem 2017; 5:28. [PMID: 28487854 PMCID: PMC5403830 DOI: 10.3389/fchem.2017.00028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/06/2017] [Indexed: 11/13/2022] Open
Abstract
Molecular tools for fluorescent imaging of specific compartments in cells are essential for understanding the function and activity of cells. Here, we report the synthesis of a series of pyridyl- and thienyl-substituted phospholes and the evaluation of these dyes for fluorescent imaging of cells. The thienyl-substituted phospholes proved to be successful for staining of cultured normal and malignant cells due to their fluorescent properties and low toxicity. Co-staining experiments demonstrated that these probes target lipid droplets, which are, lipid-storage organelles found in the cytosol of nearly all cell types. Our findings confirm that thienyl-substituted phospholes can be utilized as fluorescent tools for vital staining of cells, and we foresee that these fluorescent dyes might be used in studies to unravel the roles that lipid droplets play in cellular physiology and in diseases.
Collapse
Affiliation(s)
- Elisabet Öberg
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping UniversityLinköping, Sweden
| | - Hanna Appelqvist
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping UniversityLinköping, Sweden
| | - K Peter R Nilsson
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping UniversityLinköping, Sweden
| |
Collapse
|
33
|
Raghuvanshi A, Kumar Jha A, Kathuria M, Priya Awasthi B, Purohit D, Mitra K, Goel A. New visible light excitable donor-acceptor 7-hydroxy-coumarins as blue fluorescent probes for selective staining of vacuoles in yeasts and L. donovani. J Mater Chem B 2017; 5:2580-2587. [PMID: 32264036 DOI: 10.1039/c6tb03257e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In order to address the existing limitations of the commercially available fluorescent probe CMAC (7-amino-4-chloromethylcoumarin), a new series of highly fluorescent donor-acceptor 7-hydroxy-coumarin derivatives was prepared and these derivatives were used as vacuole specific fluorescent probes for live cell imaging of unicellular parasitic protozoa L. donovani promastigotes and yeast cells S. pombe and S. cerevisiae. The synthesized 7-hydroxy-coumarins exhibited interesting photophysical properties and have advantages such as excitation in the visible region, good water solubility, photo-stability, good quantum yield and low cytotoxicity.
Collapse
Affiliation(s)
- Ashutosh Raghuvanshi
- Fluorescent Chemistry Lab, Department of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, India.
| | | | | | | | | | | | | |
Collapse
|
34
|
Raghuvanshi A, Jha AK, Sharma A, Umar S, Mishra S, Kant R, Goel A. A Nonarchetypal 5,6-Dihydro-2H
-pyrano[3,2-g
]indolizine-Based Solution-Solid Dual Emissive AIEgen with Multicolor Tunability. Chemistry 2017; 23:4527-4531. [DOI: 10.1002/chem.201605844] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Ashutosh Raghuvanshi
- Fluorescent Chemistry Laboratory; Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Ajay Kumar Jha
- Fluorescent Chemistry Laboratory; Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Ashutosh Sharma
- Fluorescent Chemistry Laboratory; Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Shahida Umar
- Fluorescent Chemistry Laboratory; Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Shachi Mishra
- Fluorescent Chemistry Laboratory; Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Ruchir Kant
- Molecular and Structural Biology Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Atul Goel
- Fluorescent Chemistry Laboratory; Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
- Academy of Scientific and Innovative Research; New Delhi 110001 India
| |
Collapse
|
35
|
Hirai S, Horikawa Y, Asahara H, Nishiwaki N. Tailor-made synthesis of fully alkylated/arylated nicotinates by FeCl3-mediated condensation of enamino esters with enones. Chem Commun (Camb) 2017; 53:2390-2393. [DOI: 10.1039/c7cc00051k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A synthetic method for fully alkylated/arylated nicotinates was achieved by FeCl3-mediated condensation of enamino esters and enones.
Collapse
Affiliation(s)
- Sho Hirai
- School of Environmental Science and Engineering
- Kochi University of Technology
- Kami
- Japan
| | - Yurie Horikawa
- School of Environmental Science and Engineering
- Kochi University of Technology
- Kami
- Japan
| | - Haruyasu Asahara
- School of Environmental Science and Engineering
- Kochi University of Technology
- Kami
- Japan
- Research Center for Material Science and Engineering
| | - Nagatoshi Nishiwaki
- School of Environmental Science and Engineering
- Kochi University of Technology
- Kami
- Japan
- Research Center for Material Science and Engineering
| |
Collapse
|
36
|
Metabolic Disorders and Cancer: Hepatocyte Store-Operated Ca2+ Channels in Nonalcoholic Fatty Liver Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 993:595-621. [DOI: 10.1007/978-3-319-57732-6_30] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
37
|
Gao M, Su H, Li S, Lin Y, Ling X, Qin A, Tang BZ. An easily accessible aggregation-induced emission probe for lipid droplet-specific imaging and movement tracking. Chem Commun (Camb) 2017; 53:921-924. [DOI: 10.1039/c6cc09471f] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An easily accessible aggregation-induced emission (AIE) probe is developed for LD-specific imaging and dynamic movement tracking with advantages of NIR two-photon excited red emission and fast cell permeability.
Collapse
Affiliation(s)
- Meng Gao
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Huifang Su
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
- The Hong Kong University of Science & Technology
- Kowloon
- China
| | - Shiwu Li
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Yuhan Lin
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Xia Ling
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
| |
Collapse
|
38
|
Gao M, Su H, Lin Y, Ling X, Li S, Qin A, Tang BZ. Photoactivatable aggregation-induced emission probes for lipid droplets-specific live cell imaging. Chem Sci 2016; 8:1763-1768. [PMID: 29780451 PMCID: PMC5933432 DOI: 10.1039/c6sc04842k] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 12/20/2016] [Indexed: 12/11/2022] Open
Abstract
Photoactivatable probes for lipid droplets (LDs)-specific live-cell imaging are powerful tools for investigating their biological functions through precise spatial and temporal control.
Photoactivatable probes for lipid droplets (LDs)-specific live-cell imaging are powerful tools for investigating their biological functions through precise spatial and temporal control. Ideal photoactivatable probes for LDs imaging require high concentration accumulation of fluorophores in LDs, simple synthetic procedures, and excellent photoactivation efficiency. However, it is difficult to overcome these challenges by conventional fluorophores due to aggregation-caused quenching (ACQ). In this study, a new class of photoactivatable and LDs-specific fluorescent probes was developed based on dihydro-2-azafluorenones, which can easily undergo photooxidative dehydrogenation reaction to afford 2-azafluorenones with aggregation-induced emission (AIE) properties. Dihydro-2-azafluorenones as photoactivatable and LDs-specific probes display significant advantages of excellent photoactivation efficiency and lack of self-quenching in the aggregated state, and are expected to have broad applications in study of biological functions of LDs' through light-controlled spatiotemporal imaging.
Collapse
Affiliation(s)
- Meng Gao
- Guangdong Innovative Research Team , State Key Laboratory of Luminescent Materials & Devices , South China University of Technology , Guangzhou 510640 , China .
| | - Huifang Su
- Department of Chemistry , Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction , The Hong Kong University of Science & Technology , Clear Water Bay , Kowloon , Hong Kong , China .
| | - Yuhan Lin
- Guangdong Innovative Research Team , State Key Laboratory of Luminescent Materials & Devices , South China University of Technology , Guangzhou 510640 , China .
| | - Xia Ling
- Guangdong Innovative Research Team , State Key Laboratory of Luminescent Materials & Devices , South China University of Technology , Guangzhou 510640 , China .
| | - Shiwu Li
- Guangdong Innovative Research Team , State Key Laboratory of Luminescent Materials & Devices , South China University of Technology , Guangzhou 510640 , China .
| | - Anjun Qin
- Guangdong Innovative Research Team , State Key Laboratory of Luminescent Materials & Devices , South China University of Technology , Guangzhou 510640 , China .
| | - Ben Zhong Tang
- Guangdong Innovative Research Team , State Key Laboratory of Luminescent Materials & Devices , South China University of Technology , Guangzhou 510640 , China . .,Department of Chemistry , Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction , The Hong Kong University of Science & Technology , Clear Water Bay , Kowloon , Hong Kong , China .
| |
Collapse
|
39
|
Jha AK, Umar S, Arya RK, Datta D, Goel A. Pyrano[3,2-c]julolidin-2-ones: a novel class of fluorescent probes for ratiometric detection and imaging of Hg2+ in live cancer cells. J Mater Chem B 2016; 4:4934-4940. [DOI: 10.1039/c6tb01413e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A novel pyrano[3,2-c]julolidin-2-one based fluorescent molecular rotor PYJO4 has been designed and developed for selective ratiometric detection, quantification and imaging of intracellular Hg2+ in live cells.
Collapse
Affiliation(s)
- Ajay Kumar Jha
- Fluorescent Chemistry Lab
- Department of Medicinal and Process Chemistry
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Shahida Umar
- Fluorescent Chemistry Lab
- Department of Medicinal and Process Chemistry
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Rakesh Kumar Arya
- Biochemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Dipak Datta
- Biochemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Atul Goel
- Fluorescent Chemistry Lab
- Department of Medicinal and Process Chemistry
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| |
Collapse
|