1
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Tarabarova A, Lopukhov A, Fedorov AN, Yurkova MS. Novel His-tag Variants for Insertion Inside Polypeptide Chain. ACS OMEGA 2024; 9:858-865. [PMID: 38222536 PMCID: PMC10785306 DOI: 10.1021/acsomega.3c06682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/23/2023] [Accepted: 12/06/2023] [Indexed: 01/16/2024]
Abstract
His-tags are protein affinity tags ubiquitously used due to their convenience and effectiveness. However, in some individual cases, the attachment of His-tags to a protein's N- or C-termini resulted in impairment of the protein's structure or function, which led to attempts to include His-tags inside of polypeptide chains. In this work, we describe newly designed internal His-tags, where two triplets of histidine residues are separated by glycine residues to avoid steric hindrances and consequently minimize their impact on the protein structure. The applicability of these His-tags was tested with eGFP, a multifaceted reference protein, and GrAD207, a modified apical domain of GroEL chaperone, designed to stabilize in soluble form initially insoluble proteins. Both proteins are used as fusion partners for different purposes, and providing them with His-tags introduced into their polypeptide chains should conveniently broaden their functionality without involving the termini. We conclude that the insertable tags may be adjusted for the purification of proteins belonging to different structural classes.
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Affiliation(s)
- Anastasiia
G. Tarabarova
- A
N Bach Institute of Biochemistry of the Russian Academy of Sciences, Leninskii prosp 33/2, Moscow 119071, Russian Federation
| | - Anton Lopukhov
- Chemistry
Department, Lomonosov Moscow State University, GSP-1, Leninskie Gory 1/3, Moscow 119991, Russian Federation
| | - Alexey N. Fedorov
- FSI
Federal Research Centre Fundamentals of Biotechnology of the Russian
Academy of Sciences, Leninskii prosp 33/2, Moscow 119071, Russian Federation
| | - Maria S. Yurkova
- A
N Bach Institute of Biochemistry of the Russian Academy of Sciences, Leninskii prosp 33/2, Moscow 119071, Russian Federation
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2
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Zhu L, Chang Y, Li Y, Qiao M, Liu L. Biosensors Based on the Binding Events of Nitrilotriacetic Acid-Metal Complexes. BIOSENSORS 2023; 13:bios13050507. [PMID: 37232868 DOI: 10.3390/bios13050507] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023]
Abstract
Molecular immobilization and recognition are two key events for the development of biosensors. The general ways for the immobilization and recognition of biomolecules include covalent coupling reactions and non-covalent interactions of antigen-antibody, aptamer-target, glycan-lectin, avidin-biotin and boronic acid-diol. Tetradentate nitrilotriacetic acid (NTA) is one of the most common commercial ligands for chelating metal ions. The NTA-metal complexes show high and specific affinity toward hexahistidine tags. Such metal complexes have been widely utilized in protein separation and immobilization for diagnostic applications since most of commercialized proteins have been integrated with hexahistidine tags by synthetic or recombinant techniques. This review focused on the development of biosensors with NTA-metal complexes as the binding units, mainly including surface plasmon resonance, electrochemistry, fluorescence, colorimetry, surface-enhanced Raman scattering spectroscopy, chemiluminescence and so on.
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Affiliation(s)
- Lin Zhu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yong Chang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yingying Li
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Mingyi Qiao
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Lin Liu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
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3
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Tanaka YK, Shimazaki S, Fukumoto Y, Ogra Y. Detection of Histidine-Tagged Protein in Escherichia coli by Single-Cell Inductively Coupled Plasma-Mass Spectrometry. Anal Chem 2022; 94:7952-7959. [PMID: 35617709 DOI: 10.1021/acs.analchem.2c00774] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed a rapid and precise quantification method for a histidine (His)-tagged recombinant protein produced in Escherichia coli (E. coli) by single-cell inductively coupled plasma-mass spectrometry (SC-ICP-MS). Plasmid vector containing enhanced green fluorescent protein (EGFP) or red fluorescent protein (mCherry) gene fused with His-tag was transformed into E. coli. The transformed E. coli was exposed to nickel (Ni) chloride or cobalt (Co) chloride for labeling His-tag with the Ni or Co ion. Then, E. coli was analyzed by SC-ICP-MS to determine the amount of EGFP or mCherry protein on the basis of the signal of Ni or Co bound to His-tag. By comparing Ni and Co contents in E. coli expressing His-tagged mCherry with those in nontagged mCherry, the specific binding of Co to His-tag was more clearly detected than that of Ni. The Co contents were increased until 6 h after the protein induction, and this observation was coincident with the increases in fluorescence intensity of EGFP or mCherry measured by a flow cytometer. However, the Co contents were decreased for EGFP and kept at a constant level for mCherry from 6 to 24 h despite the continuous increase in the fluorescence intensity through incubation. The fluorescent proteins were mainly recovered in the insoluble fraction 24 h after the induction. This can be explained by the fact that the overexpressed fluorescent proteins with His-tag are transferred into inclusion bodies, which hampers the binding of the fluorescent proteins to the Co ion. SC-ICP-MS can be a useful technique to precisely quantify soluble recombinant proteins in E. coli without the extraction and purification process.
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Affiliation(s)
- Yu-Ki Tanaka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo, Chiba 260-8675, Japan
| | - Shunsuke Shimazaki
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo, Chiba 260-8675, Japan
| | - Yasunori Fukumoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo, Chiba 260-8675, Japan
| | - Yasumitsu Ogra
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo, Chiba 260-8675, Japan
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Abstract
Metals are essential components in life processes and participate in many important biological processes. Dysregulation of metal homeostasis is correlated with many diseases. Metals are also frequently incorporated into diagnosis and therapeutics. Understanding of metal homeostasis under (patho)physiological conditions and the molecular mechanisms of action of metallodrugs in biological systems has positive impacts on human health. As an emerging interdisciplinary area of research, metalloproteomics involves investigating metal-protein interactions in biological systems at a proteome-wide scale, has received growing attention, and has been implemented into metal-related research. In this review, we summarize the recent advances in metalloproteomics methodologies and applications. We also highlight emerging single-cell metalloproteomics, including time-resolved inductively coupled plasma mass spectrometry, mass cytometry, and secondary ion mass spectrometry. Finally, we discuss future perspectives in metalloproteomics, aiming to attract more original research to develop more advanced methodologies, which could be utilized rapidly by biochemists or biologists to expand our knowledge of how metal functions in biology and medicine. Expected final online publication date for the Annual Review of Biochemistry, Volume 91 is June 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Ying Zhou
- Department of Chemistry and CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, China; ,
| | - Hongyan Li
- Department of Chemistry and CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, China; ,
| | - Hongzhe Sun
- Department of Chemistry and CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, China; ,
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Label-Free, Rapid and Facile Gold-Nanoparticles-Based Assay as a Potential Spectroscopic Tool for Trastuzumab Quantification. NANOMATERIALS 2021; 11:nano11123181. [PMID: 34947531 PMCID: PMC8708960 DOI: 10.3390/nano11123181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/12/2021] [Accepted: 11/20/2021] [Indexed: 11/17/2022]
Abstract
Monoclonal antibody-based immunotherapy is one of the pillars of cancer treatment. However, for an efficient and personalized approach to the therapy, a quantitative evaluation of the right dose for each patient is required. In this study, we developed a simple, label-free, and rapid approach to quantify Trastuzumab, a humanized IgG1 monoclonal antibody used against human epidermal growth factor receptor 2 (HER2), overexpressed in breast cancer patients, based on localized surface plasmon resonance (LSPR). The central idea of this work was to use gold nanoparticles (AuNPs) as plasmonic scaffolds, decorated with HER2 binders mixed with oligo-ethylene glycol (OEG) molecules, to tune the surface density of the attached macromolecules and to minimize nonspecific binding events. Specifically, we characterized and optimized a self-assembled monolayer of mixed alkylthiols terminated with nitrilotriacetic acid (NTA), and OEG3 as a spacing ligand to achieve both excellent dispersibility and high reliability in protein immobilization. The successful immobilization of histidine-tagged HER2 (His-tagged HER2) on NTA via cobalt (II) chelates was demonstrated, confirming the fully functional attachment of the proteins to the AuNP surface. The proposed design demonstrates the capability of producing a clear readout that enables the transduction of a Trastuzumab/HER2 binding event into optical signals based on the wavelength shifts in LSPR, which allowed for detecting clinically relevant concentrations of Trastuzumab down to 300 ng/mL in the buffer and 2 µg/mL in the diluted serum. This strategy was found to be fast and highly specific to Trastuzumab. These findings make the present platform an auspicious tool for developing affordable bio-nanosensors.
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6
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Griffith DM, Li H, Werrett MV, Andrews PC, Sun H. Medicinal chemistry and biomedical applications of bismuth-based compounds and nanoparticles. Chem Soc Rev 2021; 50:12037-12069. [PMID: 34533144 DOI: 10.1039/d0cs00031k] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bismuth as a relatively non-toxic and inexpensive metal with exceptional properties has numerous biomedical applications. Bismuth-based compounds are used extensively as medicines for the treatment of gastrointestinal disorders including dyspepsia, gastric ulcers and H. pylori infections. Recently, its medicinal application was further extended to potential treatments of viral infection, multidrug resistant microbial infections, cancer and also imaging, drug delivery and biosensing. In this review we have highlighted the unique chemistry and biological chemistry of bismuth-209 as a prelude to sections covering the unique antibacterial activity of bismuth including a description of research undertaken to date to elucidate key molecular mechanisms of action against H. pylori, the development of novel compounds to treat infection from microbes beyond H. pylori and the significant role bismuth compounds can play as resistance breakers. Furthermore we have provided an account of the potential therapeutic application of bismuth-213 in targeted alpha therapy as well as a summary of the biomedical applications of bismuth-based nanoparticles and composites. Ultimately this review aims to provide the state of the art, highlight the untapped biomedical potential of bismuth and encourage original contributions to this exciting and important field.
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Affiliation(s)
- Darren M Griffith
- Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephens Green, Dublin 2, Ireland.,SSPC, Synthesis and Solid State Pharmaceutical Centre, Ireland
| | - Hongyan Li
- Department of Chemistry and CAS-HKU Joint Laboratory of Metallomics for Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
| | | | - Philip C Andrews
- School of Chemistry, Monash University, Melbourne, VIC, Australia
| | - Hongzhe Sun
- Department of Chemistry and CAS-HKU Joint Laboratory of Metallomics for Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
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8
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López-Laguna H, Voltà-Durán E, Parladé E, Villaverde A, Vázquez E, Unzueta U. Insights on the emerging biotechnology of histidine-rich peptides. Biotechnol Adv 2021; 54:107817. [PMID: 34418503 DOI: 10.1016/j.biotechadv.2021.107817] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/16/2021] [Accepted: 08/16/2021] [Indexed: 02/07/2023]
Abstract
In the late 70's, the discovery of the restriction enzymes made possible the biological production of functional proteins by recombinant DNA technologies, a fact that largely empowered both biotechnological and pharmaceutical industries. Short peptides or small protein domains, with specific molecular affinities, were developed as purification tags in downstream processes to separate the target protein from the culture media or cell debris, upon breaking the producing cells. Among these tags, and by exploiting the interactivity of the imidazole ring of histidine residues, the hexahistidine peptide (H6) became a gold standard. Although initially used almost exclusively in protein production, H6 and related His-rich peptides are progressively proving a broad applicability in novel utilities including enzymatic processes, advanced drug delivery systems and diagnosis, through a so far unsuspected adaptation of their binding capabilities. In this context, the coordination of histidine residues and metals confers intriguing functionalities to His-rich sequences useable in the forward-thinking design of protein-based nano- and micro-materials and devices, through strategies that are comprehensively presented here.
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Affiliation(s)
- Hèctor López-Laguna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Eric Voltà-Durán
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Eloi Parladé
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - Esther Vázquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain; Biomedical Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Mª Claret 167, 08025 Barcelona, Spain.
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9
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Xu C, Shao T, Shao S, Jin G. High activity, high selectivity and high biocompatibility BODIPY-pyrimidine derivatives for fluorescence target recognition and evaluation of inhibitory activity. Bioorg Chem 2021; 114:105121. [PMID: 34214754 DOI: 10.1016/j.bioorg.2021.105121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/13/2021] [Accepted: 06/20/2021] [Indexed: 12/14/2022]
Abstract
BODIPY-Pyrimidine (BP) is a highly selective, highly active, and highly biocompatible fluorescent drug, which is characterized by its own activity combined with a fluorophore. The combination of pyrimidines with good biological activity and fluorophores to obtain new compounds with both anti-tumor activity and fluorescent targeting probe functions is the focus of this research. In terms of biological activity, in vitro cytotoxicity of the compounds on four human cancer cells (HepG2, HeLa, A-459, and HCT-116) and the human normal cell line L-02 was studied. BP-4 has good antiproliferative activity, and its IC50 values are 19.12 ± 2.29, 13.47 ± 3.80, 18.59 ± 7.42, 14.57 ± 2.44 and 92.48 ± 6.03 μM, respectively. Good biocompatibility with tumor cells can be observed in cell imaging. The anti-tumor mechanism of the compound was further studied by flow cytometry. After BP-2, BP-3 and BP-4 treated HeLa cells, the percentage of apoptotic cells was 19.07%, 22.09% and 27.3%, respectively. The cell cycle study found that, compared with the positive control 5-FU (48.05%), the compounds BP-2, BP-3 and BP-4 all increased the proportion of HeLa cells in the G1 phase, reaching 57.65%, 55.46% and 53.58%, respectively. In vivo bioimaging results show that all three compounds can be targeted and accurately expressed in tumor tissues. In addition, molecular docking analyzes the possible interaction between the compound and the active site of thymidylate synthase.
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Affiliation(s)
- Chi Xu
- Digestive Disease Center, Shanghai East Hospital, Tongji University, Shanghai 200120, China
| | - Tingyu Shao
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China
| | - Shihe Shao
- Digestive Disease Center, Shanghai East Hospital, Tongji University, Shanghai 200120, China.
| | - Guofan Jin
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China.
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10
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Dai SY, Yang D. A Visible and Near-Infrared Light Activatable Diazocoumarin Probe for Fluorogenic Protein Labeling in Living Cells. J Am Chem Soc 2020; 142:17156-17166. [PMID: 32870680 DOI: 10.1021/jacs.0c08068] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chemical modification of proteins in living cells permits valuable glimpses into the molecular interactions that underpin dynamic cellular events. While genetic engineering methods are often preferred, selective labeling of endogenous proteins in a complex intracellular milieu with chemical approaches represents a significant challenge. In this study, we report novel diazocoumarin compounds that can be photoactivated by visible (430-490 nm) and near-infrared light (800 nm) irradiation to photo-uncage reactive carbene intermediates, which could subsequently undergo an insertion reaction with concomitant fluorescence "turned on". With these new molecules in hand, we have developed a new approach for rapid, selective, and fluorogenic labeling of endogenous protein in living cells. By using CA-II and eDHFR as model proteins, we demonstrated that subcellular localization of proteins can be precisely visualized by live-cell imaging and protein levels can be reliably quantified in multiple cell types using flow cytometry. Dynamic protein regulations such as hypoxia-induced CA-IX accumulation can also be detected. In addition, by two-photon excitation with an 800 nm laser, cell-selective labeling can also be achieved with spatially controlled irradiation. Our method circumvents the cytotoxicity of UV light and obviates the need for introducing external reporters with "click chemistries". We believe that this approach of fluorescence labeling of endogenous protein by bioorthogonal photoirradiation opens up exciting opportunities for discoveries and mechanistic interrogation in chemical biology.
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Affiliation(s)
- Sheng-Yao Dai
- Morningside Laboratory for Chemical Biology, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Dan Yang
- Morningside Laboratory for Chemical Biology, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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11
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Kubota R, Sasaki Y, Minamiki T, Minami T. Chemical Sensing Platforms Based on Organic Thin-Film Transistors Functionalized with Artificial Receptors. ACS Sens 2019; 4:2571-2587. [PMID: 31475522 DOI: 10.1021/acssensors.9b01114] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Organic thin-film transistors (OTFTs) have attracted intense attention as promising electronic devices owing to their various applications such as rollable active-matrix displays, flexible nonvolatile memories, and radiofrequency identification (RFID) tags. To further broaden the scope of the application of OTFTs, we focus on the host-guest chemistry combined with the electronic devices. Extended-gate types of OTFTs functionalized with artificial receptors were fabricated to achieve chemical sensing of targets in complete aqueous media. Organic and inorganic ions (cations and anions), neutral molecules, and proteins, which are regarded as target analytes in the field of host-guest chemistry, were electrically detected by artificial receptors. Molecular recognition phenomena on the extended-gate electrode were evaluated by several analytical methods such as photoemission yield spectroscopy in the air, contact angle goniometry, and X-ray photoelectron spectroscopy. Interestingly, the electrical responses of the OTFTs were highly sensitive to the chemical structures of the guests. Thus, the OTFTs will facilitate the selective sensing of target analytes and the understanding of chemical conversions in biological and environmental systems. Furthermore, such cross-reactive responses observed in our studies will provide some important insights into next-generation sensing systems such as OTFT arrays. We strongly believe that our approach will enable the development of new intriguing sensor platforms in the field of host-guest chemistry, analytical chemistry, and organic electronics.
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Affiliation(s)
- Riku Kubota
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Yui Sasaki
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Tsukuru Minamiki
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Tsuyoshi Minami
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
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12
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Jiang N, Li H, Sun H. Recognition of Proteins by Metal Chelation-Based Fluorescent Probes in Cells. Front Chem 2019; 7:560. [PMID: 31448265 PMCID: PMC6695521 DOI: 10.3389/fchem.2019.00560] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 07/23/2019] [Indexed: 01/23/2023] Open
Abstract
Fluorescent probes such as thiol-reactive and Ni2+-nitrilotriacetate (NTA) based probes provide a powerful toolbox for real-time visualization of a protein and a proteome in living cells. Herein, we first went through basic principles and applications of thiol-reactive based probes in protein imaging and recognition. We then summarize a family of metal-NTA based fluorescence probes in the visualization of His6-tagged protein and identification of metalloproteins at proteome-wide scale. The pros and cons of the probes, as well as ways to optimize them, are discussed.
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Affiliation(s)
| | | | - Hongzhe Sun
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
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13
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Wang Y, Li H, Sun H. Metalloproteomics for Unveiling the Mechanism of Action of Metallodrugs. Inorg Chem 2019; 58:13673-13685. [DOI: 10.1021/acs.inorgchem.9b01199] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yuchuan Wang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Hongyan Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Hongzhe Sun
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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14
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Yang Y, Jiang N, Lai YT, Chang YY, Yang X, Sun H, Li H. Green Fluorescent Probe for Imaging His 6-Tagged Proteins Inside Living Cells. ACS Sens 2019; 4:1190-1196. [PMID: 31012309 DOI: 10.1021/acssensors.8b01128] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Small molecule-based fluorescent probes offer great opportunities for specifically tracking proteins in living systems with minimal perturbation on the protein function and localization. Herein, we report a small green fluorescent probe (Ni2+- NTA-AF) consisting of a Ni2+-NTA moiety, a fluorescein, and an arylazide group, that binds specifically to His6-tagged proteins with fluorescence enhancement in vitro upon photoactivation of the arylazide group. Importantly, the probe can cross the cell membranes and stoichiometrically label His6-tagged proteins rapidly (∼15 min) in living prokaryotic and eukaryotic cells exemplified by a DNA repair protein Xeroderma pigmentosum group A (XPA). Using the probe, we successfully visualized Sirtuin 5, which is localized to the mitochondria. This probe exhibits high quantum yields and improved solubility, offering a new opportunity for imaging intracellular His6-tagged proteins inside living cells with better contrast.
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Affiliation(s)
- Ya Yang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Nan Jiang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Yau-Tsz Lai
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Yuen-Yan Chang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Xinming Yang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Hongzhe Sun
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Hongyan Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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15
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Li H, Wang R, Sun H. Systems Approaches for Unveiling the Mechanism of Action of Bismuth Drugs: New Medicinal Applications beyond Helicobacter Pylori Infection. Acc Chem Res 2019; 52:216-227. [PMID: 30596427 DOI: 10.1021/acs.accounts.8b00439] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metallodrugs have been widely used as diagnostic and therapeutic agents. Understanding their mechanisms of action may lead to advances in rational drug design. However, to achieve this, diversified approaches are required because of the complexity of metal-biomolecule interactions. Bismuth drugs in combination with antibiotics as a quadruple therapy show excellent success rates in the eradication of Helicobacter pylori, even for antibiotic-resistant strains, and in fact, they have been used in the clinic for decades for the treatment of infection. Understanding the mechanism of action of bismuth drugs may extend their medicinal application beyond the treatment of H. pylori infection. This Account describes several general strategies for mechanistic studies of metallodrugs, including system pharmacology and metalloproteomics approaches. The application of these approaches is exemplified using bismuth drugs. Through a system pharmacology approach, we showed that glutathione- and multidrug-resistance-associated protein 1-mediated self-propelled disposal of bismuth in human cells might explain the selective toxicity of bismuth drugs to H. pylori but not the human host. The development of metalloproteomics has enabled extensive studies of the putative protein targets of metallodrugs with a dynamic range of affinity. Continuous-flow GE-ICP-MS allows simultaneous monitoring of metals and their associated proteins with relatively high affinity on a proteome-wide scale. The fluorescence approach relies on unique M n+-NTA-based fluorescence probes and is particularly applicable for mining those proteins that bind to metals/metallodrugs weakly or transiently. Integration of these methods with quantitative proteomics makes it possible to maximum coverage of bismuth-associated proteins, and the sustained efficacy of bismuth drugs lies in their ability to disrupt multiple biological pathways through binding and functional perturbation of key enzymes. The knowledge acquired by mechanistic studies of bismuth drugs led to the discovery of UreG as a new target for the development of urease inhibitors. The ability of Bi(III) to inhibit metallo-β-lactamase (MBL) activity through displacement of the Zn(II) cofactor renders bismuth drugs new potential as broad-spectrum inhibitors of MBLs. Therefore, bismuth drugs could be repurposed together with clinically used antibiotics as a cotherapy to cope with the current antimicrobial resistance crisis. We anticipate that the methodologies described in this Account are generally applicable for understanding the (patho)physiological roles of metals/metallodrugs. Our mechanism-guided discovery of new druggable targets as well as new medicinal applications of bismuth drugs will inspire researchers in relevant fields to engage in the rational design of drugs and reuse of existing drugs, eventually leading to the development of new effective therapeutics.
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Affiliation(s)
- Hongyan Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Runming Wang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Hongzhe Sun
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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16
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Nasir NAM, Paus R, Ansell DM. Fluorescent cell tracer dye permits real-time assessment of re-epithelialization in a serum-free ex vivo human skin wound assay. Wound Repair Regen 2018; 27:126-133. [DOI: 10.1111/wrr.12688] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 10/29/2018] [Accepted: 11/10/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Nur Azida Mohd Nasir
- Centre for Dermatology Research, School of Biological Sciences; The University of Manchester; Manchester United Kingdom
- School of Medical Sciences; Universiti Sains Malaysia; Kubang Kerian Malaysia
| | - Ralf Paus
- Centre for Dermatology Research, School of Biological Sciences; The University of Manchester; Manchester United Kingdom
- NIHR Manchester Biomedical Research Centre, The University of Manchester; Manchester United Kingdom
- Manchester Academic Health Sciences Centre, The University of Manchester; Manchester United Kingdom
| | - David M. Ansell
- Centre for Dermatology Research, School of Biological Sciences; The University of Manchester; Manchester United Kingdom
- Division of Cell Matrix Biology and Regenerative Medicine; The University of Manchester; Manchester United Kingdom
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17
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MINAMIKI T, MINAMI T. Development of Organic Thin-film Transistors with Molecular Recognition Ability for Chemical Sensing. BUNSEKI KAGAKU 2018. [DOI: 10.2116/bunsekikagaku.67.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Ma DL, Wu C, Tang W, Gupta AR, Lee FW, Li G, Leung CH. Recent advances in iridium(iii) complex-assisted nanomaterials for biological applications. J Mater Chem B 2018; 6:537-544. [DOI: 10.1039/c7tb02859h] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Phosphorescent iridium(iii) complexes have gained increasing attention in biological applications owing to their excellent photophysical properties and efficient transportation into live cells.
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Affiliation(s)
- Dik-Lung Ma
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Chun Wu
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Wei Tang
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | | | - Fu-Wa Lee
- College of International Education
- School of Continuing Education
- Hong Kong Baptist University
- China
| | - Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
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19
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Liu YT, Yin X, Lai XY, Wang X. Theoretical study on photophysical properties of three high water solubility polypyridyl complexes for two-photon photodynamic therapy. Phys Chem Chem Phys 2018; 20:18074-18081. [DOI: 10.1039/c8cp01069b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two-photon photodynamic therapy (TP-PDT) is a very promising treatment that has drawn much attention in recent years due to its ability to penetrate deeper into tissues and minimize the damage to normal cells.
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Affiliation(s)
- Ying-Tao Liu
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering
- College of Chemistry and Chemical Engineering
- Ningxia University
- Yinchuan 750021
- China
| | - Xue Yin
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering
- College of Chemistry and Chemical Engineering
- Ningxia University
- Yinchuan 750021
- China
| | - Xiao-Yong Lai
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering
- College of Chemistry and Chemical Engineering
- Ningxia University
- Yinchuan 750021
- China
| | - Xin Wang
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering
- College of Chemistry and Chemical Engineering
- Ningxia University
- Yinchuan 750021
- China
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20
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Minamiki T, Sasaki Y, Tokito S, Minami T. Label-Free Direct Electrical Detection of a Histidine-Rich Protein with Sub-Femtomolar Sensitivity using an Organic Field-Effect Transistor. ChemistryOpen 2017; 6:472-475. [PMID: 28794937 PMCID: PMC5542759 DOI: 10.1002/open.201700070] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Indexed: 11/29/2022] Open
Abstract
There is a growing interest in achieving sensor systems to enable on-site testing of biomarkers. Herein, a new strategy for highly sensitive protein detection at sub-femtomolar levels without any labelling has been demonstrated by using an organic field-effect transistor (OFET). An artificial histidine-rich protein receptor (NiII-nitrilotriacetic acid complex, NiII-nta) functionalizes a detection portion (i.e. an extended-gate electrode) of the fabricated OFET device. The OFET responds electrically and selectively to a target analyte (bovine serum albumin), meaning that the binding processes at the NiII-nta on the extended-gate electrode for the analyte affect the field-effect properties of the device. Our results demonstrate that the combination of the OFET with the artificial receptor is an ideal approach for label-free and immune-free protein detection.
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Affiliation(s)
- Tsukuru Minamiki
- Institute of Industrial ScienceThe University of TokyoTokyo153–8505Japan
| | - Yui Sasaki
- Institute of Industrial ScienceThe University of TokyoTokyo153–8505Japan
- Research Center for Organic ElectronicsYamagata UniversityYamagata992–8510Japan
| | - Shizuo Tokito
- Research Center for Organic ElectronicsYamagata UniversityYamagata992–8510Japan
| | - Tsuyoshi Minami
- Institute of Industrial ScienceThe University of TokyoTokyo153–8505Japan
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