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Nagase K. Bioanalytical technologies using temperature-responsive polymers. ANAL SCI 2024; 40:827-841. [PMID: 38584205 PMCID: PMC11035477 DOI: 10.1007/s44211-024-00545-3] [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: 12/27/2023] [Accepted: 02/24/2024] [Indexed: 04/09/2024]
Abstract
In recent decades, various bioanalytical technologies have been investigated for appropriate medical treatment and effective therapy. Temperature-responsive chromatography is a promising bioanalytical technology owing to its functional properties. Temperature-responsive chromatography uses a poly(N-isopropylacrylamide)(PNIPAAm) modified stationary phase as the column packing material. The hydrophobic interactions between PNIPAAm and the analyte could be modulated by changing the column temperature because of the temperature-responsive hydrophobicity of PNIPAAm. Thus, the chromatography system does not require organic solvents in the mobile phase, making it suitable for therapeutic drug monitoring in medical settings such as hospitals. This review summarizes recent developments in temperature-responsive chromatography systems for therapeutic drug monitoring applications. In addition, separation methods for antibody drugs using PNIPAAm are also summarized because these methods apply to the therapeutic drug monitoring of biopharmaceutics. The temperature-responsive chromatography systems can also be utilized for clinical diagnosis, as they can assess multiple medicines simultaneously. This highlights the significant potential of temperature-responsive chromatography in medicine and healthcare.
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Affiliation(s)
- Kenichi Nagase
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
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2
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Su R, Xiao X, Li G. Thermosensitive poly(N-isopropylacrylamide) hydrogel/highly internal phase emulsion porous polymer tube tip solid-phase extraction for the determination of methylimidazoles in beverage. J Chromatogr A 2023; 1712:464476. [PMID: 37924617 DOI: 10.1016/j.chroma.2023.464476] [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: 08/09/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 11/06/2023]
Abstract
Poly(N-isopropylacrylamide) thermosensitive hydrogel tube tip solid-phase extraction/ultra-high liquid chromatography-mass spectrometry (UPLC-MS/MS) method was developed for analysis of methylimidazoles in beverages. Thermosensitive poly(N-isopropylacrylamide) (PNIPA) hydrogel solid-phase extraction (SPE) medium was prepared on the surface of highly internal phase emulsion (HIPE) porous polymer by thermally initiated polymerization in a tube tip. The temperature sensitive SPE medium has the characteristics of high porosity and high specific surface area. When the temperature is higher than 30.0℃, it can well adsorb polar molecular, and could quickly desorb polar molecular when the temperature was less than 20.0℃. The tube tip SPE coupled with UPLC-MS/MS method was established for the determination of three polar molecules including 1-methylimidazole, 4-methylimidazole and 2-methylimidazole, with linear ranges of 2.50 - 240 μg/L, and detection limits of 1.20, 1.20 and 0.65 μg/L, respectively. The method was applied to the determination of three methylimidazoles in beverages with the spiked recoveries of 81.5%-115.5% and the RSD of 0.6%-5.0%, and the relative errors of the results with the national standard UPLC-MS/MS method were in the range of -8.5%-8.9%.
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Affiliation(s)
- Rihui Su
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xiaohua Xiao
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, China.
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3
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Hiruta Y. Poly(N-isopropylacrylamide)-based temperature- and pH-responsive polymer materials for application in biomedical fields. Polym J 2022. [DOI: 10.1038/s41428-022-00687-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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4
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Musarurwa H, Tavengwa NT. Thermo-responsive polymers and advances in their applications in separation science. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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5
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Nomoto D, Nagase K, Nakamura Y, Kanazawa H, Citterio D, Hiruta Y. Anion species-triggered antibody separation system utilizing a thermo-responsive polymer column under optimized constant temperature. Colloids Surf B Biointerfaces 2021; 205:111890. [DOI: 10.1016/j.colsurfb.2021.111890] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/29/2021] [Accepted: 05/28/2021] [Indexed: 01/08/2023]
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Maekawa Y, Ayano E, Nagase K, Kanazawa H. Effective Separation for New Therapeutic Modalities Utilizing Temperature-responsive Chromatography. ANAL SCI 2021; 37:651-660. [PMID: 33518586 DOI: 10.2116/analsci.20scr09] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 01/22/2021] [Indexed: 08/09/2023]
Abstract
In recent years, drug discovery and therapeutics trends have shifted from a focus on small-molecule compounds to biopharmaceuticals, genes, cell therapy, and regenerative medicine. Therefore, new approaches and technologies must be developed to respond to these changes in medical care. To achieve this, we applied a temperature-responsive separation system to purify a variety of proteins and cells. We developed a temperature-responsive chromatography technique based on a poly(N-isopropylacrylamide) (PNIPAAm)-grafted stationary phase. This method may be applied to various types of protein and cell separation applications by optimizing the properties of the modified polymers used in this system. Therefore, the developed temperature-responsive HPLC columns and temperature-responsive solid-phase extraction (TR-SPE) columns can be an effective separation tool for new therapeutic modalities such as monoclonal antibodies, nucleic acid drugs, and cells.
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Affiliation(s)
- Yutaro Maekawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Eri Ayano
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
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7
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Nagase K, Kanazawa H. Temperature-responsive chromatography for bioseparations: A review. Anal Chim Acta 2020; 1138:191-212. [DOI: 10.1016/j.aca.2020.07.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023]
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8
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Liu S, Li Z, Yu B, Wang S, Shen Y, Cong H. Recent advances on protein separation and purification methods. Adv Colloid Interface Sci 2020; 284:102254. [PMID: 32942182 DOI: 10.1016/j.cis.2020.102254] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/01/2020] [Accepted: 09/01/2020] [Indexed: 12/21/2022]
Abstract
Protein, as the material basis of vita, is the crucial undertaker of life activities, which constitutes the framework and main substance of human tissues and organs, and takes part in various forms of life activities in organisms. Separating proteins from biomaterials and studying their structures and functions are of great significance for understanding the law of life activities and clarifying the essence of life phenomena. Therefore, scientists have proposed the new concept of proteomics, in which protein separation technology plays a momentous role. It has been diffusely used in the food industry, agricultural biological research, drug development, disease mechanism, plant stress mechanism, and marine environment research. In this paper, combined with the recent research situation, the progress of protein separation technology was reviewed from the aspects of extraction, precipitation, membrane separation, chromatography, electrophoresis, molecular imprinting, microfluidic chip and so on.
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Baert M, Wicht K, Hou Z, Szucs R, Prez FD, Lynen F. Exploration of the Selectivity and Retention Behavior of Alternative Polyacrylamides in Temperature Responsive Liquid Chromatography. Anal Chem 2020; 92:9815-9822. [PMID: 32598128 DOI: 10.1021/acs.analchem.0c01321] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Temperature responsive liquid chromatography (TRLC) allows for separation of organic solutes in purely aqueous mobile phases whereby retention is controlled through temperature. The vast majority of the work has thus far been performed on poly[N-isopropylacrylamide] (PNIPAAm)-based columns, while the performance of other temperature responsive polymers has rarely been compared under identical conditions. Therefore, in this work, two novel TRLC phases based on poly[N-n-propylacrylamide] (PNNPAAm) and poly[N,N-diethylacrylamide] (PDEAAm) are reported and compared to the state of the art PNIPAAm based column. Optimal comparison is thereby obtained by the use of controlled radical polymerizations, identical molecular weights, and by maximizing carbon loads on the silica supporting material. Analysis of identical test mixtures of homologue series and pharmaceutical samples revealed that PNNPAAm performs in a similar way as PNIPAAm while offering enhanced retention and a shift of the useable temperature range toward lower temperatures. PDEAAm offers a range of novel possibilities as it depicts a different selectivity, allowing for enhanced resolution in TRLC in, for example, coupled column systems. Reduced plate heights of 3 could be obtained on the homemade columns, offering the promise for reasonable column efficiencies in TRLC despite the use of bulky polymers as stationary phases in HPLC.
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Affiliation(s)
- Mathijs Baert
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4bis, B-9000 Ghent, Belgium
| | - Kristina Wicht
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4bis, B-9000 Ghent, Belgium
| | - Zhanyao Hou
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4bis, B-9000 Ghent, Belgium
| | - Roman Szucs
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4bis, B-9000 Ghent, Belgium
| | - Filip Du Prez
- Polymer Chemistry Research Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4bis, B-9000 Ghent, Belgium
| | - Frederic Lynen
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4bis, B-9000 Ghent, Belgium
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Maekawa Y, Yamazaki K, Ihara M, Nagase K, Kanazawa H. Simultaneous analysis of multiple oligonucleotides by temperature-responsive chromatography using a poly(N-isopropylacrylamide)-based stationary phase. Anal Bioanal Chem 2020; 412:5341-5351. [PMID: 32529301 PMCID: PMC7387324 DOI: 10.1007/s00216-020-02749-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/21/2020] [Accepted: 05/29/2020] [Indexed: 12/25/2022]
Abstract
Oligonucleotide therapeutics have contributed remarkably to healthcare, being well suited for the treatment of intractable diseases that are difficult to approach using conventional drug modalities. However, as common techniques of oligonucleotide analysis rely on reversed-phase or ion-exchange liquid chromatography and thus employ toxic organic solvents and/or ion-pairing reagents, better alternatives are highly sought after. Poly(N-isopropylacrylamide) (PNIPAAm) is widely used in temperature-responsive chromatography (TRC), which relies on column temperature variation to control the physical properties of the stationary phase and, unlike conventional reversed-phase liquid chromatography, avoids the use of toxic organic solvents and complicated gradient methods. Herein, PNIPAAm copolymer hydrogel-modified silica beads were used for the simultaneous analysis of multiple synthetic oligonucleotides by TRC to recognize differences in the length of single nucleotides, single bases, and the number of phosphorothioated sites. Temperature-responsive elution was observed in all cases. Each separation of all combinations of multiple oligonucleotides was better at higher temperatures above the lower critical solution temperature and was performed without the use of organic solvents and gradient methods. In the case of multiply phosphorothioated oligonucleotides, good separation was achieved using an aqueous solvent and isocratic elution in the absence of ion-pairing reagents. Thus, the developed procedure was concluded to be well suited for oligonucleotide analysis. Graphical abstract ![]()
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Affiliation(s)
- Yutaro Maekawa
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kaichi Yamazaki
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Miwa Ihara
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
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11
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Maekawa Y, Okamoto N, Okada Y, Nagase K, Kanazawa H. Green analytical method for the simultaneous analysis of cytochrome P450 probe substrates by poly(N-isopropylacrylamide)-based temperature-responsive chromatography. Sci Rep 2020; 10:8828. [PMID: 32483226 PMCID: PMC7264224 DOI: 10.1038/s41598-020-65270-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 04/28/2020] [Indexed: 02/07/2023] Open
Abstract
High-performance liquid chromatography (HPLC) is the most common analytical method practiced in various fields and used for analysis of almost all drug compounds in the pharmaceutical industries. During drug development, an evaluation of potential drug interaction with cytochrome P450 (CYP) is essential. A "cocktail" approach is often used in drug development to evaluate the effect of a drug candidate on multiple CYP enzymes in a single experiment. So far, simultaneous analysis of multiple CYP substrates, which have greatly different structure and physicochemical properties, has required organic solvents and mobile phase gradient methods. However, despite the recent emphasis on environmental protection, analytical methods that use only aqueous solvents without the use of organic solvents for separation have not been studied well. This study sought to develop the simultaneous analysis of multiple CYP substrates by using poly(N-isopropylacrylamide) (PNIPAAm)-based temperature-responsive chromatography with only aqueous solvents and isocratic methods. Good separation of multiple CYP substrates was achieved without using organic solvents and any gradient methods by temperature-responsive chromatography utilizing a P(NIPAAm-co-n-butyl methacrylate (BMA))- and P(NIPAAm-co-N-acryloyl L-tryptophan methyl ester (L-Trp-OMe))-grafted silica column. Overall, PNIPAAm-based temperature-responsive chromatography represents a remarkably simple, versatile, and environmentally friendly bioanalytical method for CYP substrates and their metabolites.
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Affiliation(s)
- Yutaro Maekawa
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Naoya Okamoto
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Yuji Okada
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
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Guo B, Wang H, Lan D, Pang X, Li Y, Liu H, Yan H, Bai L. Effect of different initiators on temperature‐sensitive monolithic columns and application in online enrichment of β‐sitosterol. J Appl Polym Sci 2019. [DOI: 10.1002/app.47683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Bin Guo
- Key Laboratory of Pharmaceutical Quality Control of Hebei ProvinceCollege of Pharmaceutical Sciences, Hebei University Baoding 071002 China
- Key Laboratory of Medicinal Chemistry and Molecular DiagnosisMinistry of Education Baoding 071002 China
| | - Huimin Wang
- Key Laboratory of Pharmaceutical Quality Control of Hebei ProvinceCollege of Pharmaceutical Sciences, Hebei University Baoding 071002 China
- Key Laboratory of Medicinal Chemistry and Molecular DiagnosisMinistry of Education Baoding 071002 China
| | - Danan Lan
- Key Laboratory of Pharmaceutical Quality Control of Hebei ProvinceCollege of Pharmaceutical Sciences, Hebei University Baoding 071002 China
- Key Laboratory of Medicinal Chemistry and Molecular DiagnosisMinistry of Education Baoding 071002 China
| | - Xiaomin Pang
- Key Laboratory of Pharmaceutical Quality Control of Hebei ProvinceCollege of Pharmaceutical Sciences, Hebei University Baoding 071002 China
- Key Laboratory of Medicinal Chemistry and Molecular DiagnosisMinistry of Education Baoding 071002 China
| | - Yiming Li
- Key Laboratory of Medicinal Chemistry and Molecular DiagnosisMinistry of Education Baoding 071002 China
| | - Haiyan Liu
- Key Laboratory of Pharmaceutical Quality Control of Hebei ProvinceCollege of Pharmaceutical Sciences, Hebei University Baoding 071002 China
- Key Laboratory of Medicinal Chemistry and Molecular DiagnosisMinistry of Education Baoding 071002 China
| | - Hongyuan Yan
- Key Laboratory of Medicinal Chemistry and Molecular DiagnosisMinistry of Education Baoding 071002 China
- College of Public HealthHebei University Baoding 071002 China
| | - Ligai Bai
- Key Laboratory of Pharmaceutical Quality Control of Hebei ProvinceCollege of Pharmaceutical Sciences, Hebei University Baoding 071002 China
- Key Laboratory of Medicinal Chemistry and Molecular DiagnosisMinistry of Education Baoding 071002 China
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Okubo K, Ikeda K, Oaku A, Hiruta Y, Nagase K, Kanazawa H. Protein purification using solid-phase extraction on temperature-responsive hydrogel-modified silica beads. J Chromatogr A 2018; 1568:38-48. [DOI: 10.1016/j.chroma.2018.07.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 07/02/2018] [Accepted: 07/05/2018] [Indexed: 12/01/2022]
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Matsuura M, Ohshima M, Hiruta Y, Nishimura T, Nagase K, Kanazawa H. LAT1-Targeting Thermoresponsive Fluorescent Polymer Probes for Cancer Cell Imaging. Int J Mol Sci 2018; 19:E1646. [PMID: 29865203 PMCID: PMC6032285 DOI: 10.3390/ijms19061646] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/24/2018] [Accepted: 05/25/2018] [Indexed: 01/31/2023] Open
Abstract
L-type amino acid transporter 1 (LAT1) is more highly expressed in cancer cells compared with normal cells. LAT1 targeting probes would therefore be a promising tool for cancer cell imaging. In this study, LAT1-targeting thermoresponsive fluorescent polymer probes based on poly(N-isopropylacrylamide-co-N,N-dimethylacrylamide) (P(NIPAAm-co-DMAAm)) were synthesized and their affinity for LAT1 was evaluated. The synthesized polymer probes interacted with LAT1 on HeLa cells, and inhibition of l-[³H]-leucine, one of the substrates for LAT1 uptake, was investigated. l-Tyrosine-conjugated P(NIPAAm-co-DMAAm) inhibited the uptake of l-[³H]-leucine, while P(NIPAAm-co-DMAAm) and l-phenylalanine-conjugated P(NIPAAm-co-DMAAm) did not. This result indicated that l-tyrosine-conjugated polymer has a high affinity for LAT1. The fluorescent polymer probes were prepared by modification of a terminal polymer group with fluorescein-5-maleimide (FL). Above the polymer transition temperature, cellular uptake of the polymer probes was observed because the polymers became hydrophobic, which enhanced the interaction with the cell membrane. Furthermore, quantitative analysis of the fluorescent probe using flow cytometry indicated that l-tyrosine-conjugated P(NIPAAm-co-DMAAm)-FL shows higher fluorescence intensity earlier than P(NIPAAm-co-DMAAm)-FL. The result suggested that cellular uptake was promoted by the LAT1 affinity site. The developed LAT1-targeting thermoresponsive fluorescent polymer probes are expected to be useful for cancer cell imaging.
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Affiliation(s)
- Minami Matsuura
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8012, Japan.
| | - Mariko Ohshima
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8012, Japan.
| | - Yuki Hiruta
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Tomohiro Nishimura
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8012, Japan.
| | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8012, Japan.
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8012, Japan.
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YAMANOUCHI T, KATSUYAMA N, HIRUTA Y, AYANO E, KANAZAWA H. Development of Nanocarriers Functionalized with Stimuli-Responsive Polymer for Controlled Cellular Uptake. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Yuki HIRUTA
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Eri AYANO
- Faculty of Pharmacy, Keio University
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Fujimoto T, Ito M, Ito S, Kanazawa H. Fractional laser-assisted percutaneous drug delivery via temperature-responsive liposomes. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:679-689. [PMID: 28277004 DOI: 10.1080/09205063.2017.1296346] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Liposomes are used for transdermal delivery of drugs and vaccines. Our objective was to develop temperature-responsive (TR) liposomes to achieve temperature-dependent, controlled release of an encapsulated drug, and use fractional laser irradiation to enhance transdermal permeability of these liposomes. TR-liposomes prepared using a thermosensitive polymer derived from poly-N-isopropylacrylamide, N,N-dimethylacrylamide, egg phosphatidylcholine, and dioleoylphosphatidylethanolamine, delivered fluorescein isothiocyanate-conjugated ovalbumin (OVA-FITC) as a model drug. Effect of temperature on liposome size and drug release rate was estimated at two temperatures. Transdermal permeation through hairless mouse skin, with and without CO2 fractional laser irradiation, and penetration into Yucatan micro-pig skin were investigated using Franz cell and fluorescence microscopy. Dynamic light scattering showed that mean liposome diameter nearly doubled from 190 to 325 nm between 37 and 50 °C. The rate and amount of OVA-FITC released from TR-liposomes were higher at 45 °C that those at 37 °C. Transdermal permeation of OVA-FITC across non-irradiated skin from both TR- and unmodified liposomes was minimal at 37 °C, but increased at 45 °C. Laser irradiation significantly increased transdermal permeation of both liposome groups at both temperatures. Fluorescence microscopy of frozen biopsy specimens showed deeper penetration of FITC from unmodified liposomes compared to that from polymer-modified liposomes. Rhodamine accumulation was not observed with polymer-modified liposomes at either temperature. Temperature-dependent controlled release of an encapsulated drug was achieved using the TR-liposomes. However, TR-liposomes showed lower skin permeability despite higher hydrophobicity. Fractional laser irradiation significantly increased the transdermal permeation. Additional studies are required to control liposome size and optimize transdermal permeation properties.
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Affiliation(s)
- Takahiro Fujimoto
- a Clinic F , Tokyo , Japan.,b Faculty of Pharmacy , Keio University , Tokyo , Japan
| | - Masayuki Ito
- c Vitamin C60 Bioresearch Corporation , Tokyo , Japan
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Peng J, Tang F, Zhou R, Xie X, Li S, Xie F, Yu P, Mu L. New techniques of on-line biological sample processing and their application in the field of biopharmaceutical analysis. Acta Pharm Sin B 2016; 6:540-551. [PMID: 27818920 PMCID: PMC5071623 DOI: 10.1016/j.apsb.2016.05.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 05/20/2016] [Accepted: 05/21/2016] [Indexed: 11/17/2022] Open
Abstract
Biological sample pretreatment is an important step in biological sample analysis. Due to the diversity of biological matrices, the analysis of target substances in these samples presents significant challenges to sample processing. To meet these emerging demands on biopharmaceutical analysis, this paper summarizes several new techniques of on-line biological sample processing: solid phase extraction, solid phase micro-extraction, column switching, limited intake filler, molecularly imprinted solid phase extraction, tubular column, and micro-dialysis. We describe new developments, principles, and characteristics of these techniques, and the application of liquid chromatography–mass spectrometry (LC–MS) in biopharmaceutical analysis with these new techniques in on-line biological sample processing.
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Affiliation(s)
- Jie Peng
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Fang Tang
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Rui Zhou
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Xiang Xie
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Sanwang Li
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Feifan Xie
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Peng Yu
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
- Corresponding author. Tel./fax: +86 731 88912400.
| | - Lingli Mu
- Medical College, Hunan Normal University, Changsha 410006, China
- Corresponding author. Tel./fax: +86 731 82650446.
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The use of a temperature-responsive column for the direct analysis of drugs in serum by two-dimensional heart-cutting liquid chromatography. Anal Bioanal Chem 2016; 409:1059-1065. [PMID: 27796461 DOI: 10.1007/s00216-016-0024-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 10/08/2016] [Accepted: 10/10/2016] [Indexed: 10/20/2022]
Abstract
A novel pretreatment method, which was performed using a two-dimensional high-performance liquid chromatography (2D-HPLC) system, was proposed for the direct analysis of drugs in human serum. A temperature-responsive column was used as a pretreatment column. The stationary phase of the temperature-responsive column exhibits temperature-regulated hydrophilic/hydrophobic characteristics. Controlling the ionic strength of the eluent enables human serum albumin (HSA) to pass through the column without retention. When serum samples containing barbiturates or benzodiazepines were injected into the temperature-responsive column using 10 mM of ammonium acetate (pH 6.5) as the mobile phase and in the temperature range of 10-40 °C, HSA was eluted from the column near the dead time, followed by the individual drugs. When the column temperature was changed, the retention times of the drugs were altered owing to surface property changes within the pretreatment column. These closely eluted compounds were subsequently introduced into the analytical column using a column-switching valve, with a minimal gap time to avoid foreign substance contamination. This new 2D-HPLC method afforded high-quality chromatograms of multiple drugs without unwanted peaks from foreign substances. The present technique could be an attractive choice in selecting the analytical method for drug analysis.
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Hiruta Y, Kanazashi R, Ayano E, Okano T, Kanazawa H. Temperature-responsive molecular recognition chromatography using phenylalanine and tryptophan derived polymer modified silica beads. Analyst 2016; 141:910-7. [DOI: 10.1039/c5an01996f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The separation system with dual temperature-response and molecular recognition characteristics leads to selective separation using only aqueous solution.
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Affiliation(s)
- Yuki Hiruta
- Faculty of Pharmacy
- Keio University
- Minato
- Japan
| | | | - Eri Ayano
- Faculty of Pharmacy
- Keio University
- Minato
- Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University
- Shinjuku
- Japan
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