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Schenk M, König N, Hey-Hawkins E, Beck-Sickinger AG. Illuminating the Path to Enhanced Bioimaging by Phosphole-based Fluorophores. Chembiochem 2024; 25:e202300857. [PMID: 38206088 DOI: 10.1002/cbic.202300857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/12/2024]
Abstract
As the research of biological systems becomes increasingly complex, there is a growing demand for fluorophores with a diverse range of wavelengths. In this study, we introduce phosphole-based fluorophores that surpass existing options like dansyl chloride. The reactive S-Cl bond in chlorosulfonylimino-5-phenylphosphole derivatives allows rapid and direct coupling to peptides making the fluorophores easily introducible to peptides. This coupling process occurs under mild conditions, demonstrated for [F7 ,P34 ]-NPY and its shorter analogues. Peptides linked with our fluorophores exhibit similar receptor activation to the control peptide, while maintaining high stability and low toxicity, making them ideal biolabeling reagents. In fluorescence microscopy experiments, they can be easily visualized even at low concentrations, without suffering from the typical issue of bleaching. These phosphole-based fluorophores represent a significant leap forward in the field. Their versatility, ease of modification, superior performance, and applicability in biological labeling make them a promising choice for researchers seeking advanced tools to unravel the details of complex biological systems.
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Affiliation(s)
- Mareike Schenk
- Leipzig University, Faculty of Life Sciences, Institute of Biochemistry, Brüderstrasse 34, 04103, Leipzig, Germany
| | - Nils König
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Evamarie Hey-Hawkins
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Annette G Beck-Sickinger
- Leipzig University, Faculty of Life Sciences, Institute of Biochemistry, Brüderstrasse 34, 04103, Leipzig, Germany
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Zhang P, Zhang H, Zheng B, Wang H, Qi X, Wang S, Liu Z, Sun L, Liu Y, Qin X, Fan W, Ma M, Lai WF, Zhang D. Combined Self-Assembled Hendeca-Arginine Nanocarriers for Effective Targeted Gene Delivery to Bladder Cancer. Int J Nanomedicine 2022; 17:4433-4448. [PMID: 36172006 PMCID: PMC9512291 DOI: 10.2147/ijn.s379356] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/06/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction Bladder cancer (BCa) is among the most prevalent cancers worldwide. However, the effectiveness of intravesical therapy for BCa is limited due to the short dwell time and the presence of the permeation barrier. Methods Nanocomplexes were self-assembled between DNA and hendeca-arginine peptide (R11). Stepwise intravesical instillation of R11 and the generated nanocomplexes significantly enhanced the targeting capacity and penetration efficiency in BCa therapy. The involved mechanism of cellular uptake and penetration of the nanocomplexes was determined. The therapeutic effect of the nanocomplexes was verified preclinically in murine orthotopic BCa models. Results Nanocomplexes exhibited the best BCa targeting efficiency at a nitrogen-to-phosphate (NP) ratio of 5 but showed a lack of stability during cellular uptake. The method of stepwise intravesical instillation not only increased the stability and target specificity of the DNA component but also caused the delivered DNA to more effectively penetrate into the glycosaminoglycan layer and plasma membrane. The method promotes the accumulation of the delivered DNA in the clathrin-independent endocytosis pathway, directs the intracellular trafficking of the delivered DNA to nonlysosome-localized regions, and enables the intercellular transport of the delivered DNA via a direct transfer mechanism. In preclinical trials, our stepwise method was shown to remarkably enhance the targeting and penetration efficiency of DNA in murine orthotopic BCa models. Conclusion With this method, a stepwise intravesical instillation of self-assembled nanocomplexes, which are generated from hendeca-arginine peptides, was achieved; thus, this method offers an effective strategy to deliver DNA to target and penetrate BCa cells during gene therapy and warrants further development for future intravesical gene therapy in the clinical context.
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Affiliation(s)
- Pu Zhang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Haibao Zhang
- Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Bin Zheng
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Heng Wang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Xiaolong Qi
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Shuai Wang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Zhenghong Liu
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Li Sun
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Yang Liu
- Cancer Center, Department of Ultrasound Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Xiaowen Qin
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Weijiao Fan
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Minghai Ma
- Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Wing-Fu Lai
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
| | - Dahong Zhang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang People's Republic of China
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You S, Kim H, Jung HY, Kim B, Lee EJ, Kim JW, Kim Y. Tuning surface functionalities of sub-10 nm-sized nanocarriers to target outer retina in designing drug delivery agents for intravitreal administration. Biomaterials 2020; 255:120188. [PMID: 32652402 DOI: 10.1016/j.biomaterials.2020.120188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 06/07/2020] [Accepted: 06/09/2020] [Indexed: 11/27/2022]
Abstract
Age-related macular degeneration (AMD) is one of the leading causes of irreversible blindness, generally affecting people over 50 years of age in industrialized countries. Despite the effectiveness of anti-vascular endothelial growth factor (VEGF) therapy in attenuating the growth of new blood vessels, substantial visual improvements are rare with this complex disease. Furthermore, the current regimen of repeated monthly intravitreal injections of drugs can result in serious side effects. Combination therapies-to complement anti-VEGF alone-with a prolonged therapeutic effect and efficient delivery to the intended site are urgently needed, which could be realized through the use of carefully designed nanocarriers. To understand the physicochemical effects (e.g., size, charge, geometry) of intravitreally administered nanocarriers on their bioavailability, distribution, and targeting efficiency across multiple layers of the retina, here we prepared seven different types of surface-functionalized water-soluble dendritic nanocarriers with hydrodynamic sizes mostly under 5 nm. A similar stoichiometric amount of fluorophore was covalently attached to each of these biocompatible nanocarriers for quantitative analyses by confocal microscopy of cryosectioned healthy mouse eyes. Interestingly, at 24 h post-injection, the nanocarrier with multiple copies of glucosamine on the surface (DNSG) accumulated predominantly in the photoreceptor layer and the retinal pigment epithelium (RPE), which are speculated to be associated with AMD pathogenesis (i.e., target sites). Furthermore, extended residence at these outer retinal layers was demonstrated by DNSG, which appeared to gradually turn into micron-scale particles potentially through aggregation. Our systematic findings may provide useful guidelines for the rational design of intravitreal nanocarriers to treat vision-threatening retinal diseases, including AMD.
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Affiliation(s)
- Suyeon You
- Division of Biomedical Sciences, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Hyoungtai Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.
| | - Hye-Youn Jung
- Division of Biomedical Sciences, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Boram Kim
- Division of Biomedical Sciences, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Eun Jung Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Jin Woo Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Yoonkyung Kim
- Division of Biomedical Sciences, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea.
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Kaur N, Chopra S, Singh G, Raj P, Bhasin A, Sahoo SK, Kuwar A, Singh N. Chemosensors for biogenic amines and biothiols. J Mater Chem B 2018; 6:4872-4902. [PMID: 32255063 DOI: 10.1039/c8tb00732b] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
There is burgeoning interest among supramolecular chemists to develop novel molecular systems to detect biogenic amines and bio-thiols in aqueous and non-aqueous media due to their potential role in biological processes. Biogenic amines are biologically important targets because of their involvement in the energy metabolism of human biological systems and their requirement is met through food and nutrition. However, the increasing instances of serious health problems due to food toxicity have raised the quality of food nowadays. Biogenic amines have been frequently considered as the markers or primary quality parameters of foods like antioxidant properties, freshness and spoilage. For instance, these amines such as spermine, spermidine, cadavarine, etc. may originate during microbial decarboxylation of amino acids of fermented foods/beverages. These amines may also react with nitrite available in certain meat products and concomitantly produce carcinogenic nitrosamine compounds. On the other hand, it is also well established that biothiols, particularly, thiol amino acids, provide the basic characteristics to food including flavor, color and texture that determine its acceptability. For instance, the reduction of thiol groups produces hydrogen sulfide which reduces flavour as in rotten eggs and spoiled fish, and the presence of hydrogen sulfide in fish is indicative of spoilage. Thus, biogenic amines and bio-thiols have attracted the profound interest of researchers as analytical tools for their quantification. Much scientific and technological information is issued every year, where the establishment of precise interactions of biogenic amines and bio-thiols with other molecules is sought in aqueous and non-aqueous media. This review summarizes the optical chemosensors developed for the selective detection of biogenic amines and bio-thiols.
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Affiliation(s)
- Navneet Kaur
- Department of Chemistry, Panjab University (PU), Chandigarh-160014, India.
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Selective colorimetric analysis of spermine based on the cross-linking aggregation of gold nanoparticles chain assembly. Talanta 2017; 167:193-200. [DOI: 10.1016/j.talanta.2017.01.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/25/2017] [Accepted: 01/29/2017] [Indexed: 11/21/2022]
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Gracie K, Moores M, Smith WE, Harding K, Girolami M, Graham D, Faulds K. Preferential Attachment of Specific Fluorescent Dyes and Dye Labeled DNA Sequences in a Surface Enhanced Raman Scattering Multiplex. Anal Chem 2016; 88:1147-53. [DOI: 10.1021/acs.analchem.5b02776] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kirsten Gracie
- Centre
of Molecular Nanometrology, Technology Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, United Kingdom
| | - Matthew Moores
- Department
of Statistics, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - W. Ewen Smith
- Centre
of Molecular Nanometrology, Technology Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, United Kingdom
| | - Kerry Harding
- Centre
of Molecular Nanometrology, Technology Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, United Kingdom
| | - Mark Girolami
- Department
of Statistics, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Duncan Graham
- Centre
of Molecular Nanometrology, Technology Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, United Kingdom
| | - Karen Faulds
- Centre
of Molecular Nanometrology, Technology Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, United Kingdom
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Russell BA, Mulheran PA, Birch DJS, Chen Y. Probing the Sudlow binding site with warfarin: how does gold nanocluster growth alter human serum albumin? Phys Chem Chem Phys 2016; 18:22874-8. [DOI: 10.1039/c6cp03428d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Gold Nanoclusters (AuNCs) synthesised using Human Serum Albumin (HSA) as a stable scaffold are shown to modify the major drug binding site, Sudlow site I. Upon AuNC nucleation within HSA, warfarin was observed to no longer bind to Sudlow I, remaining free in solution.
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Affiliation(s)
- B. A. Russell
- Department of Physics
- Strathclyde University
- Glasgow G4 0NG
- UK
| | - P. A. Mulheran
- Department of Chemical and Process Engineering
- Strathclyde University
- Glasgow G1 1XJ
- UK
| | - D. J. S. Birch
- Department of Physics
- Strathclyde University
- Glasgow G4 0NG
- UK
| | - Y. Chen
- Department of Physics
- Strathclyde University
- Glasgow G4 0NG
- UK
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Abstract
This review focuses on the recent advances in SERS and its potential to detect multiple biomolecules in clinical samples.
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Affiliation(s)
- Stacey Laing
- Centre for Molecular Nanometrology
- WestCHEM
- Pure and Applied Chemistry
- University of Strathclyde
- Technology and Innovation Centre
| | - Kirsten Gracie
- Centre for Molecular Nanometrology
- WestCHEM
- Pure and Applied Chemistry
- University of Strathclyde
- Technology and Innovation Centre
| | - Karen Faulds
- Centre for Molecular Nanometrology
- WestCHEM
- Pure and Applied Chemistry
- University of Strathclyde
- Technology and Innovation Centre
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Szabat M, Pedzinski T, Czapik T, Kierzek E, Kierzek R. Structural Aspects of the Antiparallel and Parallel Duplexes Formed by DNA, 2'-O-Methyl RNA and RNA Oligonucleotides. PLoS One 2015; 10:e0143354. [PMID: 26579720 PMCID: PMC4666348 DOI: 10.1371/journal.pone.0143354] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 11/03/2015] [Indexed: 11/18/2022] Open
Abstract
This study investigated the influence of the nature of oligonucleotides on the abilities to form antiparallel and parallel duplexes. Base pairing of homopurine DNA, 2'-O-MeRNA and RNA oligonucleotides with respective homopyrimidine DNA, 2'-O-MeRNA and RNA as well as chimeric oligonucleotides containing LNA resulted in the formation of 18 various duplexes. UV melting, circular dichroism and fluorescence studies revealed the influence of nucleotide composition on duplex structure and thermal stability depending on the buffer pH value. Most duplexes simultaneously adopted both orientations. However, at pH 5.0, parallel duplexes were more favorable. Moreover, the presence of LNA nucleotides within a homopyrimidine strand favored the formation of parallel duplexes.
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Affiliation(s)
- Marta Szabat
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
| | - Tomasz Pedzinski
- Department of Chemistry, Adam Mickiewicz University, Umultowska 89B, 61-614 Poznan, Poland
| | - Tomasz Czapik
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
| | - Elzbieta Kierzek
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
| | - Ryszard Kierzek
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
- * E-mail:
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Shaaban S, Abdel-Wahab BF. Groebke–Blackburn–Bienaymé multicomponent reaction: emerging chemistry for drug discovery. Mol Divers 2015; 20:233-54. [DOI: 10.1007/s11030-015-9602-6] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 05/12/2015] [Indexed: 01/31/2023]
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