2
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Davoine C, Fillet M, Pochet L. Capillary electrophoresis as a fragment screening tool to cross-validate hits from chromogenic assay: Application to FXIIa. Talanta 2021; 226:122163. [PMID: 33676706 DOI: 10.1016/j.talanta.2021.122163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/20/2020] [Accepted: 01/25/2021] [Indexed: 10/22/2022]
Abstract
In this study, a partial-filling affinity capillary electrophoresis (pf-ACE) method was developed for the cross-validation of fragment hits revealed by chromogenic factor XIIa (FXIIa) assay. Chromogenic assay produces false positives, mainly due to spectrophotometric interferences and sample purity issues. pf-ACE was selected as counter-screening technology because of its separative character and the fact that the target does not have to be attached or tagged. The effects of protein plug length, applied voltage and composition of the running buffer were examined and optimized. Detection limit in terms of dissociation constant was estimated at 400 μM. The affinity evaluation was performed close to physiological conditions (pH 7.4, ionic strength 0.13 mol L-1) in a poly (ethylene oxide)-coated capillary of 75 μm internal diameter x 33 cm length with an applied voltage of 3 kV. This method uncovered chromogenic assay's false positives due to zinc contamination. Moreover, pf-ACE supported the evaluation of compounds absorbing at 405 nm.
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Affiliation(s)
- C Davoine
- Namur Medicine & Drug Innovation Center (NAMEDIC - NARILIS), University of Namur, Rue de Bruxelles 61, 5000, Namur, Belgium; Laboratory for the Analysis of Medicines (LAM), Department of Pharmacy, CIRM, University of Liege, Place du 20 Août 7, 4000, Liège, Belgium
| | - M Fillet
- Laboratory for the Analysis of Medicines (LAM), Department of Pharmacy, CIRM, University of Liege, Place du 20 Août 7, 4000, Liège, Belgium
| | - L Pochet
- Namur Medicine & Drug Innovation Center (NAMEDIC - NARILIS), University of Namur, Rue de Bruxelles 61, 5000, Namur, Belgium.
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3
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Wang Y, Adeoye DI, Ogunkunle EO, Wei IA, Filla RT, Roper MG. Affinity Capillary Electrophoresis: A Critical Review of the Literature from 2018 to 2020. Anal Chem 2020; 93:295-310. [DOI: 10.1021/acs.analchem.0c04526] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yao Wang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, Florida 32306, United States
| | - Damilola I. Adeoye
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, Florida 32306, United States
| | - Emmanuel O. Ogunkunle
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, Florida 32306, United States
| | - I-An Wei
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, Florida 32306, United States
| | - Robert T. Filla
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, Florida 32306, United States
| | - Michael G. Roper
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, Florida 32306, United States
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5
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Lian DS, Chen XY, Zeng HS, Wang YY. Capillary electrophoresis based on nucleic acid analysis for diagnosing inherited diseases. Clin Chem Lab Med 2020; 59:249-266. [PMID: 32374277 DOI: 10.1515/cclm-2020-0186] [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: 02/21/2020] [Accepted: 04/04/2020] [Indexed: 11/15/2022]
Abstract
Most hereditary diseases are incurable, but their deterioration could be delayed or stopped if diagnosed timely. It is thus imperative to explore the state-of-the-art and high-efficient diagnostic techniques for precise analysis of the symptoms or early diagnosis of pre-symptoms. Diagnostics based on clinical presentations, hard to distinguish different phenotypes of the same genotype, or different genotypes displaying similar phenotypes, are incapable of pre-warning the disease status. Molecular diagnosis is ahead of harmful phenotype exhibition. However, conventional gold-standard molecular classifications, such as karyotype analysis, Southern blotting (SB) and sequencing, suffer drawbacks like low automation, low throughput, prolonged duration, being labor intensive and high cost. Also, deficiency in flexibility and diversity is observed to accommodate the development of precise and individualized diagnostics. The aforementioned pitfalls make them unadaptable to the increasing clinical demand for detecting and interpreting numerous samples in a rapid, accurate, high-throughput and cost-effective manner. Nevertheless, capillary electrophoresis based on genetic information analysis, with advantages of automation, high speed, high throughput, high efficiency, high resolution, digitization, versatility, miniature and cost-efficiency, coupled with flexible-designed PCR strategies in sample preparation (PCR-CE), exhibit an excellent power in deciphering cryptic molecular information of superficial symptoms of genetic diseases, and can analyze in parallel a large number of samples in a single PCR-CE, thereby providing an alternative, accurate, customized and timely diagnostic tool for routine screening of clinical samples on a large scale. Thus, the present study focuses on CE-based nucleic acid analysis used for inherited disease diagnosis. Also, the limitations and challenges of this PCR-CE for diagnosing hereditary diseases are discussed.
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Affiliation(s)
- Dong-Sheng Lian
- Guangzhou Women and Children's Medical Center of Guangzhou Medical University, NO. 9 at Jinsui Rd., Tianhe District, Guangzhou, Guangdong, P.R. China.,Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, P.R. China
| | - Xiang-Yuan Chen
- Guangzhou Women and Children's Medical Center of Guangzhou Medical University, NO. 9 at Jinsui Rd., Tianhe District, Guangzhou, Guangdong, P.R. China
| | - Hua-Song Zeng
- Guangzhou Women and Children's Medical Center of Guangzhou Medical University, NO. 9 at Jinsui Rd., Tianhe District, Guangzhou, Guangdong, P.R. China
| | - Yan-Yi Wang
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, P.R. China
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6
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Baroni A, Neaga I, Delbosc N, Wells M, Verdy L, Ansseau E, Vanden Eynde JJ, Belayew A, Bodoki E, Oprean R, Hambye S, Blankert B. Bioactive Aliphatic Polycarbonates Carrying Guanidinium Functions: An Innovative Approach for Myotonic Dystrophy Type 1 Therapy. ACS OMEGA 2019; 4:18126-18135. [PMID: 31720515 PMCID: PMC6843715 DOI: 10.1021/acsomega.9b02034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/25/2019] [Indexed: 06/10/2023]
Abstract
Dystrophia myotonica type 1 (DM1) results from nuclear sequestration of splicing factors by a messenger RNA (mRNA) harboring a large (CUG) n repeat array transcribed from the causal (CTG) n DNA amplification. Several compounds were previously shown to bind the (CUG) n RNA and release the splicing factors. We now investigated for the first time the interaction of an aliphatic polycarbonate carrying guanidinium functions to DM1 DNA/RNA model probes by affinity capillary electrophoresis. The apparent association constants (K a) were in the range described for reference compounds such as pentamidine. Further macromolecular engineering could improve association specificity. The polymer presented no toxicity in cell culture at concentrations of 1.6-100.0 μg/mL as evaluated both by MTT and real-time monitoring xCELLigence method. These promising results may lay the foundation for a new branch of potential therapeutic agents for DM1.
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Affiliation(s)
- Alexandra Baroni
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
- Laboratory
of Polymeric and Composite Materials, Center of Innovation and Research
in Materials and Polymers (CIRMAP), University
of Mons. 20 Place du Parc, 7000 Mons, Belgium
| | - Ioan Neaga
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
- Analytical
Chemistry Department, “Iuliu Haţieganu”
University of Medicine and Pharmacy, 4, Louis Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Nicolas Delbosc
- Laboratory
of Polymeric and Composite Materials, Center of Innovation and Research
in Materials and Polymers (CIRMAP), University
of Mons. 20 Place du Parc, 7000 Mons, Belgium
| | - Mathilde Wells
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Laetitia Verdy
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Eugénie Ansseau
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Jean Jacques Vanden Eynde
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Alexandra Belayew
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Ede Bodoki
- Analytical
Chemistry Department, “Iuliu Haţieganu”
University of Medicine and Pharmacy, 4, Louis Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Radu Oprean
- Analytical
Chemistry Department, “Iuliu Haţieganu”
University of Medicine and Pharmacy, 4, Louis Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Stéphanie Hambye
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Bertrand Blankert
- Laboratory
of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy,
Research Institute for Health Sciences and Technology, Laboratory of Molecular
Biology, Faculty of Medicine and Pharmacy, Research Institute for
Health Sciences and Technology, and Laboratory of Organic Chemistry, Faculty of
Sciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
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7
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Yu F, Zhao Q, Zhang D, Yuan Z, Wang H. Affinity Interactions by Capillary Electrophoresis: Binding, Separation, and Detection. Anal Chem 2018; 91:372-387. [PMID: 30392351 DOI: 10.1021/acs.analchem.8b04741] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Fangzhi Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China.,University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Qiang Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China.,University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Dapeng Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
| | - Zheng Yuan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China.,University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China.,University of Chinese Academy of Sciences , Beijing , 100049 , China
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