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Cawez F, Mercuri PS, Morales-Yãnez FJ, Maalouf R, Vandevenne M, Kerff F, Guérin V, Mainil J, Thiry D, Saulmont M, Vanderplasschen A, Lafaye P, Aymé G, Bogaerts P, Dumoulin M, Galleni M. Development of Nanobodies as Theranostic Agents against CMY-2-Like Class C β-Lactamases. Antimicrob Agents Chemother 2023; 67:e0149922. [PMID: 36892280 PMCID: PMC10112224 DOI: 10.1128/aac.01499-22] [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: 11/09/2022] [Accepted: 01/24/2023] [Indexed: 03/10/2023] Open
Abstract
Three soluble single-domain fragments derived from the unique variable region of camelid heavy-chain antibodies (VHHs) against the CMY-2 β-lactamase behaved as inhibitors. The structure of the complex VHH cAbCMY-2(254)/CMY-2 showed that the epitope is close to the active site and that the CDR3 of the VHH protrudes into the catalytic site. The β-lactamase inhibition pattern followed a mixed profile with a predominant noncompetitive component. The three isolated VHHs recognized overlapping epitopes since they behaved as competitive binders. Our study identified a binding site that can be targeted by a new class of β-lactamase inhibitors designed on the sequence of the paratope. Furthermore, the use of mono- or bivalent VHH and rabbit polyclonal anti-CMY-2 antibodies enables the development of the first generation of enzyme-linked immunosorbent assay (ELISA) for the detection of CMY-2 produced by CMY-2-expressing bacteria, irrespective of resistotype.
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Affiliation(s)
- Frédéric Cawez
- InBioS, Center for Protein Engineering, Biological Macromolecules, Department of Life Sciences, University of Liège, Liège, Belgium
| | - Paola Sandra Mercuri
- InBioS, Center for Protein Engineering, Biological Macromolecules, Department of Life Sciences, University of Liège, Liège, Belgium
| | - Francisco Javier Morales-Yãnez
- InBioS, Center for Protein Engineering, NEPTUNS, Department of Life Sciences, University of Liège, Liège, Belgium
- ALPANANO, Center for Protein Engineering & FARAH, University of Liège, Liège, Belgium
| | - Rita Maalouf
- InBioS, Center for Protein Engineering, NEPTUNS, Department of Life Sciences, University of Liège, Liège, Belgium
| | - Marylène Vandevenne
- InBios, Center for Protein Engineering, ROBOTEIN, Department of Life Sciences, University of Liège, Liège, Belgium
| | - Frederic Kerff
- InBioS, Center for Protein Engineering, Department of Life Sciences, University of Liège, Liège, Belgium
| | - Virginie Guérin
- Bacteriology, FARAH and Faculty of Veterinary Medicine, Department of Infectious and Parasitic Diseases, University of Liège, Liège, Belgium
| | - Jacques Mainil
- Bacteriology, FARAH and Faculty of Veterinary Medicine, Department of Infectious and Parasitic Diseases, University of Liège, Liège, Belgium
| | - Damien Thiry
- Bacteriology, FARAH and Faculty of Veterinary Medicine, Department of Infectious and Parasitic Diseases, University of Liège, Liège, Belgium
| | - Marc Saulmont
- Regional Animal Health and Identification Association (ARSIA), Ciney, Belgium
| | - Alain Vanderplasschen
- ALPANANO, Center for Protein Engineering & FARAH, University of Liège, Liège, Belgium
- Immunology-Vaccinology, FARAH and Faculty of Veterinary Medicine, Department of Infectious and Parasitic Diseases, University of Liège, Liège, Belgium
| | - Pierre Lafaye
- Institut Pasteur, Université Paris Cité, CNRS UMR 328, Paris, France
| | - Gabriel Aymé
- Institut Pasteur, Université Paris Cité, CNRS UMR 328, Paris, France
| | - Pierre Bogaerts
- National Reference Center for Antibiotic-Resistant Gram-Negative Bacilli, Department of Clinical Microbiology, CHU UCL Namur, Yvoir, Belgium
| | - Mireille Dumoulin
- InBioS, Center for Protein Engineering, NEPTUNS, Department of Life Sciences, University of Liège, Liège, Belgium
- ALPANANO, Center for Protein Engineering & FARAH, University of Liège, Liège, Belgium
| | - Moreno Galleni
- InBioS, Center for Protein Engineering, Biological Macromolecules, Department of Life Sciences, University of Liège, Liège, Belgium
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Matsui K, Tanabe S, Sun S, Nguyen D, Kinoshita T, Yamamoto Y, Shiigi H. Development of Metal Nanoparticle-immobilized Microplate for High-throughput and Highly Sensitive Fluorescence Analysis. ANAL SCI 2020; 36:1461-1465. [PMID: 32779577 DOI: 10.2116/analsci.20p225] [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: 11/23/2022]
Abstract
Enzyme-linked immunosorbent assay (ELISA) is a widespread analytical biochemistry assay. In this work, a direct ELISA method using a metallic nanoparticle (NP)-immobilized 96-well plate was developed for high-throughput, highly sensitive fluorescence analysis. Immobilization of metallic NPs on a 96-well plate effectively amplified fluorescence signals of the assay. The silver (Ag) NP-immobilized plate showed the best fluorescence enhancement effect of all the metal-immobilized plates tested. We used the Ag NP-immobilized plate to detect biomolecules and bacteria and found that both the fluorescence intensity and the limit of detection (LOD) were strongly enhanced by more than 100 times compared with those of the unmodified 96-well plates. Quantitative and qualitative considerations for target bacteria regarding the impact of autofluorescence on detection were successfully obtained for several strains. Our results demonstrate the potential of applying Ag NPs for enhancing the efficiency of direct and indirect ELISA assays.
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Affiliation(s)
- Kyohei Matsui
- Department of Applied Chemistry, Osaka Prefecture University
| | - So Tanabe
- Department of Applied Chemistry, Osaka Prefecture University
| | - Shuyi Sun
- Department of Applied Chemistry, Osaka Prefecture University
| | - Dung Nguyen
- Department of Applied Chemistry, Osaka Prefecture University
| | | | - Yojiro Yamamoto
- Department of Applied Chemistry, Osaka Prefecture University.,GreenChem. Inc
| | - Hiroshi Shiigi
- Department of Applied Chemistry, Osaka Prefecture University
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Wang J, Chen Q, Wu J, Zhu W, Wu Y, Fan X, Zhang G, Li Y, Jiang G. A highly selective and light-up red emissive fluorescent probe for imaging of penicillin G amidase inBacillus cereus. NEW J CHEM 2019. [DOI: 10.1039/c9nj00890j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A highly selective and red-emissive fluorescent probe (HCyNB) for penicillin G amidase (PGA) has been prepared and used for imaging of endogenousPGAin penicillinase-producingBacillus subtilis.
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Affiliation(s)
- Jianguo Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Qingqing Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Jie Wu
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Wenping Zhu
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Yongquan Wu
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Xiaolin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Guanxin Zhang
- Organic Solids Laboratory
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Yibao Li
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Guoyu Jiang
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
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