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Yang J, Lu X, Chen M, Tang C, Wei Z, Liu Y, Jiang H, Yu P. Non-immobilized GO-SELEX screening of aptamers against cyclosporine A and its application in a AuNPs colorimetric aptasensor. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:227-236. [PMID: 38105729 DOI: 10.1039/d3ay01775c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Cyclosporine A (CsA) is an immunosuppressive drug that is widely used in clinical practice. Due to its narrow therapeutic window and the significant differences between individuals, the therapeutic drug monitoring (TDM) of CsA is required to ensure patient safety. In this study, we screened a novel aptamer, named CsA7, which could specifically recognize CsA, and developed a AuNPs colorimetric aptasensor for the rapid detection of CsA. In the SELEX process, after eight rounds of screening, four aptamer candidate sequences were obtained and subjected to binding affinity and specificity tests. Finally, the CsA7 aptamer (Kd = 41.21 ng mL-1) showed the highest affinity for CsA. Based on CsA7, we also developed a AuNPs colorimetric aptasensor, which had a detection limit of 0.1 ng mL-1 and a quantitative range of 0.1-500 ng mL-1 and showed good selectivity among CsA and its analogs. According to the results, the CsA7 aptamer provides an alternative recognition molecule to the antibody in biosensor applications and shows great potential for the rapid and convenient detection of CsA.
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Affiliation(s)
- Jie Yang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha, Hunan 410013, China.
| | - Xiaoling Lu
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha, Hunan 410013, China.
| | - Meilun Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha, Hunan 410013, China.
| | - Chunhua Tang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha, Hunan 410013, China.
| | - Zheng Wei
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha, Hunan 410013, China.
| | - Yijie Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha, Hunan 410013, China.
| | - Hanbing Jiang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha, Hunan 410013, China.
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 1 Traditional Chinese Medicine Hospital in Changde, Hunan Province, China
| | - Peng Yu
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha, Hunan 410013, China.
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Baranova AA, Chistov AA, Shuvalov MV, Tyurin AP, Biryukov MV, Ivanov IA, Sadykova VS, Kurakov AV, Sergeeva AI, Korshun VA, Alferova VA. Identification of isocyclosporins by collision-induced dissociation of doubly protonated species. Talanta 2021; 225:121930. [PMID: 33592699 DOI: 10.1016/j.talanta.2020.121930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/21/2020] [Accepted: 11/26/2020] [Indexed: 11/26/2022]
Abstract
Nonribosomal cyclopeptide cyclosporin A (CsA), produced by fungus Tolypocladium inflatum, is an extremely important immunosuppressive drug used in organ transplantations and for therapy of autoimmune diseases. Here we report for the first time production of CsA, along with related cyclosporins B and C, by Tolypocladium inflatum strains of marine origin (White Sea). Cyclosporins A-C contain an unusual amino acid, (4R)-4-((E)-2-butenyl)-4,N-dimethyl-l-threonine (MeBmt), and are prone to isomerization to non-active isocyclosporin by N→O acyl shift of valine connected to MeBmt in acidic conditions. CsA and isoCsA are not distinguishable in MS analysis of [M+H]+ ions due to rapid [CsA + H]+→[isoCsA + H]+ conversion. We found that the N→O acyl shift is completely suppressed in cyclosporine [M+2H]2+ ions, and their collision-induced dissociation (CID) can be used for rapid and unambiguous analysis of cyclosporins and isocylosporins. Fragmentation patterns of [CsA+2H]2+ and [isoCsA+2H]2+ ions were analyzed and explained. The developed approach could be useful for MS analysis of other peptides containing β-hydroxy-α-amino acids.
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Affiliation(s)
- Anna A Baranova
- Gause Institute of New Antibiotics, Bolshaya Pirogovskaya 11, Moscow, 119021, Russia; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, Moscow, 117997, Russia
| | - Alexey A Chistov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, Moscow, 117997, Russia; Orekhovich Research Institute of Biomedical Chemistry, Pogodinskaya 10, Moscow, 119121, Russia
| | - Maxim V Shuvalov
- Gause Institute of New Antibiotics, Bolshaya Pirogovskaya 11, Moscow, 119021, Russia; Lomonosov Moscow State University, 1 Leninskiye Gory, 119992, Moscow, Russia
| | - Anton P Tyurin
- Gause Institute of New Antibiotics, Bolshaya Pirogovskaya 11, Moscow, 119021, Russia; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, Moscow, 117997, Russia
| | - Mikhail V Biryukov
- Gause Institute of New Antibiotics, Bolshaya Pirogovskaya 11, Moscow, 119021, Russia; Lomonosov Moscow State University, 1 Leninskiye Gory, 119992, Moscow, Russia
| | - Igor A Ivanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, Moscow, 117997, Russia
| | - Vera S Sadykova
- Gause Institute of New Antibiotics, Bolshaya Pirogovskaya 11, Moscow, 119021, Russia
| | | | - Albina I Sergeeva
- Lomonosov Moscow State University, 1 Leninskiye Gory, 119992, Moscow, Russia
| | - Vladimir A Korshun
- Gause Institute of New Antibiotics, Bolshaya Pirogovskaya 11, Moscow, 119021, Russia; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, Moscow, 117997, Russia.
| | - Vera A Alferova
- Gause Institute of New Antibiotics, Bolshaya Pirogovskaya 11, Moscow, 119021, Russia; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, Moscow, 117997, Russia.
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Hauser PC, Kubáň P. Capacitively coupled contactless conductivity detection for analytical techniques - Developments from 2018 to 2020. J Chromatogr A 2020; 1632:461616. [PMID: 33096295 DOI: 10.1016/j.chroma.2020.461616] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/09/2020] [Accepted: 10/10/2020] [Indexed: 12/20/2022]
Abstract
The developments of analytical contactless conductivity measurements based on capacitive coupling over the two years from mid-2018 to mid-2020 are covered. This mostly concerns applications of the technique in zone electrophoresis employing conventional capillaries and to a lesser extent lab-on-chip devices. However, its use for the detection in several other flow-based analytical methods has also been reported. Detection of bubbles and measurements of flow rates in two-phase flows are also recurring themes. A few new applications in stagnant aqueous samples, e.g. endpoint detection in titrations and measurement on paper-based devices, have been reported. Some variations of the design of the measuring cells and their read-out electronics have also been described.
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Affiliation(s)
- Peter C Hauser
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, CH-4056, Basel, Switzerland.
| | - Pavel Kubáň
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 97, CZ-60200, Brno, Czech Republic.
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Tron C, Coste G, Lalanne S, Bernard A, Jan YG, Ferrand-Sorre MJ, Verdier MC, Bellissant E, Lemaitre F. A simple and fast liquid chromatography tandem mass spectrometry method to determine cyclosporine A concentrations in endomyocardial biopsies. J Pharm Biomed Anal 2020; 193:113664. [PMID: 33160221 DOI: 10.1016/j.jpba.2020.113664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 09/19/2020] [Accepted: 09/28/2020] [Indexed: 12/01/2022]
Abstract
Measuring cyclosporine A (CsA), an immunosuppressive drug used to prevent heart transplant rejection, concentrations in myocardial biopsies might be more informative than its measurement in whole blood. Therefore, a fast, accurate and reproductive method to determine CsA concentration in this complex matrix is needed. We report the validation of a liquid chromatography tandem mass spectrometry method to measure CsA concentration in heart parenchyma, applicable to everyday practice. The method was found to be precise, accurate, reproducible, specific of CsA, and without any matrix effect or carry-over. The lower limit of quantification was 50 pg of CsA in myocardium. The method was linear up to 2000 pg of CsA in myocardium. Samples were found stable for one year at - 80 °C. At last, 40 drugs which could be prescribed to heart transplant recipients were tested with the method and showed no interference with CsA signal. The method was suitable to quantify CsA in endomyocardial biopsies from heart transplanted patients. This method allows designing clinical studies aiming at exploring the relationship between CsA intra-graft concentrations and outcome.
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Affiliation(s)
- Camille Tron
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; INSERM, Centre d'Investigation Clinique 1414, F-35000 Rennes, France.
| | - Gwendal Coste
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Sébastien Lalanne
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Aurélie Bernard
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Yann-Gaël Jan
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Marie-José Ferrand-Sorre
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; INSERM, Centre d'Investigation Clinique 1414, F-35000 Rennes, France
| | - Marie-Clémence Verdier
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; INSERM, Centre d'Investigation Clinique 1414, F-35000 Rennes, France
| | - Eric Bellissant
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; INSERM, Centre d'Investigation Clinique 1414, F-35000 Rennes, France
| | - Florian Lemaitre
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; INSERM, Centre d'Investigation Clinique 1414, F-35000 Rennes, France
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Elbashir AA, Elgorashe REE, Alnajjar AO, Aboul-Enein HY. Application of Capillary Electrophoresis with Capacitively Coupled Contactless Conductivity Detection (CE-C 4D): 2017-2020. Crit Rev Anal Chem 2020; 52:535-543. [PMID: 32835492 DOI: 10.1080/10408347.2020.1809340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Capacitively coupled contactless conductivity detection (C4D) has emerged as influential to detect analytes that do not have chromogenic or fluorogenic functional group. Since our last review several new capillary electrophoresis (CE) methods coupled with (CE-C4D) have been communicated. The aim of this review is to give an update of the almost all the new applications of CE-C4D in the field of pharmaceutical, food and biomedical analysis covering the period from 2017 to April 2020. The utilization of CE with C4D in the areas of pharmaceutical, food and biomedical analysis is presented. Finally, concluding remarks and outlooks are discussed.
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Affiliation(s)
- Abdalla Ahmed Elbashir
- Department of Chemistry, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
| | | | - Ahmed O Alnajjar
- Department of Chemistry, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
| | - Hassan Y Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Cairo, Egypt
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