1
|
Duncan H, Agulló C, Mercader JV, Abad-Somovilla A, Abad-Fuentes A. Harnessing the Intrinsic Chemical Reactivity of the Mycotoxin Patulin for Immunosensing. Anal Chem 2024; 96. [PMID: 39007758 PMCID: PMC11295118 DOI: 10.1021/acs.analchem.4c01631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 07/09/2024] [Accepted: 07/09/2024] [Indexed: 07/16/2024]
Abstract
Mycotoxins are globally pervasive contaminants that threaten food safety worldwide. Regulatory authorities have established maximum permissible levels for certain mycotoxins, and their presence is routinely monitored throughout the food chain to ensure the provision of healthy food and safe feed for humans and animals. While immunoanalytical methods are essential for mycotoxin screening, monoclonal antibodies for the detection of patulin are notably absent. Moreover, leading immunodiagnostic companies currently do not offer rapid tests for patulin in their product portfolios. This deficiency in mycotoxin testing is primarily due to the electrophilic reactivity of patulin. In this study, we exploit this reactivity to develop an innovative strategy that targets the stable adduct formed by the reaction of patulin with aryl-1,2-dithiolates, rather than analyzing the mycotoxin itself. Based on this previously unknown reaction, we present the first collection of monoclonal antibodies, enabling the long-sought goal of sensitive, simple, and user-friendly immunosensing of patulin.
Collapse
Affiliation(s)
- Hadyn Duncan
- Institute
of Agricultural Chemistry and Food Technology (IATA), Spanish Scientific
Research Council (CSIC), Av. Agustí Escardino 7, Paterna 46980, Valencia, Spain
- Department
of Organic Chemistry, University of Valencia, Doctor Moliner 50, Burjassot 46100, Valencia, Spain
| | - Consuelo Agulló
- Department
of Organic Chemistry, University of Valencia, Doctor Moliner 50, Burjassot 46100, Valencia, Spain
| | - Josep V. Mercader
- Institute
of Agricultural Chemistry and Food Technology (IATA), Spanish Scientific
Research Council (CSIC), Av. Agustí Escardino 7, Paterna 46980, Valencia, Spain
| | - Antonio Abad-Somovilla
- Department
of Organic Chemistry, University of Valencia, Doctor Moliner 50, Burjassot 46100, Valencia, Spain
| | - Antonio Abad-Fuentes
- Institute
of Agricultural Chemistry and Food Technology (IATA), Spanish Scientific
Research Council (CSIC), Av. Agustí Escardino 7, Paterna 46980, Valencia, Spain
| |
Collapse
|
2
|
López-Puertollano D, Agulló C, Mercader JV, Abad-Somovilla A, Abad-Fuentes A. Design of a novel hapten and development of a sensitive monoclonal immunoassay for dicamba analysis in environmental water samples. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157770. [PMID: 35926599 DOI: 10.1016/j.scitotenv.2022.157770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Weed resistance to glyphosate has been a driving force behind the increased use of alternative herbicides in agriculture. Recently, dicamba-tolerant recombinant plants were introduced to the market, which may result in residues of this agrochemical contaminating environmental waters. Given that restrictions on the use of dicamba have consequently been established by regulatory agencies, it is therefore also desirable to conduct extensive controls on dicamba residues. Immunoassays are currently the most powerful bioanalytical technology for the rapid monitoring of chemical residues and contaminants. In the present study, a novel hapten was designed maintaining unaltered all the antigenic moieties of the target molecule, and this was used to generate high-affinity monoclonal antibodies against dicamba for the first time. Additionally, a collection of haptens with different linker composition or linker tethering site was synthesized and conjugated to proteins. Using these novel immunoreagents, a direct competitive enzyme-linked immunosorbent assay with a limit of detection for dicamba of 0.24 ng/mL was developed and validated. Analysis of water samples from different origins afforded recovery values between 90 % and 120 %, and coefficients of variation below 20 % were obtained. These results indicate that the developed immunochemical assay is suitable for the rapid determination of dicamba residues in environmental water samples.
Collapse
Affiliation(s)
- Daniel López-Puertollano
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, Burjassot 46100, València, Spain
| | - Consuelo Agulló
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, Burjassot 46100, València, Spain
| | - Josep V Mercader
- Institute of Agricultural Chemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Av. Agustí Escardino 7, Paterna 46980, València, Spain
| | - Antonio Abad-Somovilla
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, Burjassot 46100, València, Spain
| | - Antonio Abad-Fuentes
- Institute of Agricultural Chemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Av. Agustí Escardino 7, Paterna 46980, València, Spain.
| |
Collapse
|
3
|
Mousivand M, Javan-Nikkhah M, Anfossi L, Di Nardo F, Salina M, Bagherzadeh K. High performance aptasensing platform development through in silico aptamer engineering for aflatoxin B1 monitoring. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2022]
|
4
|
Addante-Moya LG, Abad-Somovilla A, Abad-Fuentes A, Agulló C, Mercader JV. Assessment of the Optimum Linker Tethering Site of Alternariol Haptens for Antibody Generation and Immunoassay Development. Toxins (Basel) 2021; 13:toxins13120883. [PMID: 34941720 PMCID: PMC8705777 DOI: 10.3390/toxins13120883] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/26/2021] [Accepted: 12/06/2021] [Indexed: 01/19/2023] Open
Abstract
Immunochemical methods for mycotoxin analysis require antigens with well-defined structures and antibodies with outstanding binding properties. Immunoreagents for the mycotoxins alternariol and/or alternariol monomethyl ether have typically been obtained with chemically uncharacterized haptens, and antigen conjugates have most likely been prepared with mixtures of functionalized molecules. For the first time, total synthesis was performed, in the present study, to obtain two haptens with opposite linker attachment locations. The functionalized synthetic haptens were purified and deeply characterized by different spectrometric methods, allowing the preparation of bioconjugates with unequivocal structures. Direct and indirect competitive enzyme-linked immunosorbent assays, using homologous and heterologous conjugates, were employed to extensively evaluate the generated immunoreagents. Antibodies with high affinity were raised from conjugates of both haptens, and a structure-activity relationship between the synthetic haptens and the specificity of the generated antibodies could be established. These results pave the way for the development of novel highly sensitive immunoassays selective of one or two of these Alternaria mycotoxins.
Collapse
Affiliation(s)
- Luis G. Addante-Moya
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, 46100 Burjassot, Valencia, Spain; (L.G.A.-M.); (A.A.-S.); (C.A.)
| | - Antonio Abad-Somovilla
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, 46100 Burjassot, Valencia, Spain; (L.G.A.-M.); (A.A.-S.); (C.A.)
| | - Antonio Abad-Fuentes
- Spanish Council for Scientific Research, Institute of Agrochemistry and Food Technology, Agustí Escardino 7, 46980 Paterna, Valencia, Spain;
| | - Consuelo Agulló
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, 46100 Burjassot, Valencia, Spain; (L.G.A.-M.); (A.A.-S.); (C.A.)
| | - Josep V. Mercader
- Spanish Council for Scientific Research, Institute of Agrochemistry and Food Technology, Agustí Escardino 7, 46980 Paterna, Valencia, Spain;
- Correspondence:
| |
Collapse
|
5
|
López-Puertollano D, Agulló C, Mercader JV, Abad-Somovilla A, Abad-Fuentes A. Immunoanalytical methods for ochratoxin A monitoring in wine and must based on innovative immunoreagents. Food Chem 2020; 345:128828. [PMID: 33338836 DOI: 10.1016/j.foodchem.2020.128828] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 12/01/2020] [Accepted: 12/03/2020] [Indexed: 12/19/2022]
Abstract
Immunochemical methods are highly deployed in analytical laboratories worldwide for monitoring the incidence of mycotoxins in the food chain. Nevertheless, most conventional immunoassays for ochratoxin A (OTA), including commercial kits, show limitations to robustly determine this mycotoxin in grape-derived products below regulated levels (2 ng/mL). Herein, two rapid tests for sensitive OTA determination in wine and must were developed capitalizing on a collection of bioconjugates from innovative synthetic haptens and monoclonal antibodies with subnanomolar affinity. The ELISA (LOD = 8 pg/mL) showed excellent performance in recovery studies, and it was applied to survey commercial wines and musts for OTA contamination. Concerning LFIA, validation according to the Commission Regulation 519/2014 showed that samples exceeding 2 ng/mL were properly scored as uncompliant. More importantly, illegal samples provided a complete inhibition of the test signal, making this test an easy-to-use, rapid, and convenient screening method for in-house control of OTA in wineries.
Collapse
Affiliation(s)
- Daniel López-Puertollano
- Department of Organic Chemistry, Universitat de València, Doctor Moliner 50, 46100 Burjassot, València, Spain
| | - Consuelo Agulló
- Department of Organic Chemistry, Universitat de València, Doctor Moliner 50, 46100 Burjassot, València, Spain
| | - Josep V Mercader
- Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Agustí Escardino 7, 46980 Paterna, València, Spain
| | - Antonio Abad-Somovilla
- Department of Organic Chemistry, Universitat de València, Doctor Moliner 50, 46100 Burjassot, València, Spain
| | - Antonio Abad-Fuentes
- Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Agustí Escardino 7, 46980 Paterna, València, Spain.
| |
Collapse
|
6
|
López-Puertollano D, Agulló C, Mercader JV, Abad-Somovilla A, Abad-Fuentes A. Click Chemistry-Assisted Bioconjugates for Hapten Immunodiagnostics. Bioconjug Chem 2020; 31:956-964. [DOI: 10.1021/acs.bioconjchem.0c00099] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Daniel López-Puertollano
- Department of Organic Chemistry, Universitat de València, Doctor Moliner 50, 46100 Burjassot, València, Spain
| | - Consuelo Agulló
- Department of Organic Chemistry, Universitat de València, Doctor Moliner 50, 46100 Burjassot, València, Spain
| | - Josep V. Mercader
- Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Agustí Escardino 7, 46980 Paterna, València, Spain
| | - Antonio Abad-Somovilla
- Department of Organic Chemistry, Universitat de València, Doctor Moliner 50, 46100 Burjassot, València, Spain
| | - Antonio Abad-Fuentes
- Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Agustí Escardino 7, 46980 Paterna, València, Spain
| |
Collapse
|
7
|
Tittlemier S, Cramer B, Dall’Asta C, Iha M, Lattanzio V, Malone R, Maragos C, Solfrizzo M, Stranska-Zachariasova M, Stroka J. Developments in mycotoxin analysis: an update for 2017-2018. WORLD MYCOTOXIN J 2019. [DOI: 10.3920/wmj2018.2398] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This review summarises developments that have been published in the period from mid-2017 to mid-2018 on the analysis of various matrices for mycotoxins. Analytical methods to determine aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxins, patulin, trichothecenes, and zearalenone are covered in individual sections. Advances in sampling strategies are discussed in a dedicated section, as are methods used to analyse botanicals and spices, and newly developed comprehensive liquid chromatographic-mass spectrometric based multi-mycotoxin methods. This critical review aims to briefly discuss the most important recent developments and trends in mycotoxin determination as well as to address limitations of the presented methodologies.
Collapse
Affiliation(s)
- S.A. Tittlemier
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, MB R3C 3G8, Canada
| | - B. Cramer
- University of Münster, Institute of Food Chemistry, Corrensstr. 45, 48149 Münster, Germany
| | - C. Dall’Asta
- Università di Parma, Department of Food and Drug, Viale delle Scienze 23/A, 43124 Parma, Italy
| | - M.H. Iha
- Nucleous of Chemistry and Bromatology Science, Adolfo Lutz Institute of Ribeirão Preto, Rua Minas 866, CEP 14085-410, Ribeirão Preto, SP, Brazil
| | - V.M.T. Lattanzio
- National Research Council of Italy, Institute of Sciences of Food Production, via Amendola 122/O, 70126 Bari, Italy
| | - R.J. Malone
- Trilogy Analytical Laboratory, 870 Vossbrink Dr, Washington, MO 63090, USA
| | - C. Maragos
- Mycotoxin Prevention and Applied Microbiology Research Unit, USDA, ARS National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA
| | - M. Solfrizzo
- National Research Council of Italy, Institute of Sciences of Food Production, via Amendola 122/O, 70126 Bari, Italy
| | - M. Stranska-Zachariasova
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6 – Dejvice, Czech Republic
| | - J. Stroka
- European Commission, Joint Research Centre, Retieseweg 111, 2440 Geel, Belgium
| |
Collapse
|