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Han L, Li Y, Jiang J, Li R, Fan G, Lei Z, Wang H, Wang Z, Zhang W. Preparation and characterisation of monoclonal antibodies against deoxynivalenol. ITALIAN JOURNAL OF ANIMAL SCIENCE 2020. [DOI: 10.1080/1828051x.2020.1763861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Li Han
- College of Animal Science and Technology, Shihezi University, Shihezi, China
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Yuetao Li
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Jinqing Jiang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Renfeng Li
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Guoying Fan
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Zhuang Lei
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Haojie Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Ziliang Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Wenju Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, China
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2
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Paul M, Weller MG. Antibody Screening by Microarray Technology-Direct Identification of Selective High-Affinity Clones. Antibodies (Basel) 2020; 9:E1. [PMID: 31906477 PMCID: PMC7175374 DOI: 10.3390/antib9010001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/09/2019] [Accepted: 12/11/2019] [Indexed: 01/27/2023] Open
Abstract
The primary screening of hybridoma cells is a time-critical and laborious step during the development of monoclonal antibodies. Often, critical errors occur in this phase, which supports the notion that the generation of monoclonal antibodies with hybridoma technology is difficult to control and hence, a risky venture. We think that it is crucial to improve the screening process to eliminate most of the critical deficits of the conventional approach. With this new microarray-based procedure, several advances could be achieved: Selectivity for excellent binders, high-throughput, reproducible signals, avoidance of misleading avidity (multivalency) effects, and performance of simultaneous competition experiments. The latter can also be used to select clones of desired cross-reactivity properties. In this paper, a model system with two excellent clones against carbamazepine, two weak clones, and blank supernatant containing fetal bovine serum was designed to examine the effectiveness of the new system. The excellent clones could be detected largely independent of the immunoglobulin G (IgG) concentration, which is usually unknown during the clone screening since the determination and subsequent adjustment of the antibody concentration are not feasible in most cases. Furthermore, in this approach, the enrichment, isolation, and purification of IgG for characterization is not necessary. Raw cell culture supernatant can be used directly, even when fetal calf serum (FCS) or other complex media is used. In addition, an improved method for the oriented antibody-immobilization on epoxy-silanized slides is presented. Based on the results of this model system with simulated hybridoma supernatants, we conclude that this approach should be preferable to most other protocols leading to many false positives, causing expensive and lengthy elimination steps to weed out the poor clones.
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Affiliation(s)
| | - Michael G. Weller
- Federal Institute for Materials Research and Testing (BAM), Division 1.5 Protein Analysis, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany;
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Binding properties of broad-specific monoclonal antibodies against three organophosphorus pesticides by a direct surface plasmon resonance immunosensor. Anal Bioanal Chem 2018; 410:7263-7273. [DOI: 10.1007/s00216-018-1337-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 08/02/2018] [Accepted: 08/21/2018] [Indexed: 10/28/2022]
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Cui X, Jin M, Du P, Chen G, Zhang C, Zhang Y, Shao Y, Wang J. Development of immunoassays for multi-residue detection of small molecule compounds. FOOD AGR IMMUNOL 2018. [DOI: 10.1080/09540105.2018.1428284] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Xueyan Cui
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Maojun Jin
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Pengfei Du
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Ge Chen
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Chan Zhang
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Yudan Zhang
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Yong Shao
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Jing Wang
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
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Foubert A, Beloglazova NV, Gordienko A, Tessier MD, Drijvers E, Hens Z, De Saeger S. Development of a Rainbow Lateral Flow Immunoassay for the Simultaneous Detection of Four Mycotoxins. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:7121-7130. [PMID: 27936756 DOI: 10.1021/acs.jafc.6b04157] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A multiplex lateral flow immunoassay (LFIA) for the determination of the mycotoxins deoxynivalenol, zearalenone, and T2/HT2-toxin in barley was developed with luminescent quantum dots (QDs) as label. The synthesized QDs were hydrophilized by two strategies, that is, coating with an amphiphilic polymer or silica. The water-soluble QDs were compared with regard to their bioconjugation with monoclonal antibody (mAb) and were tested on a LFIA. Silica-coated QDs that contained epoxy groups were most promising. Therefore, green, orange, and red epoxy-functionalized silica-coated QDs were conjugated with anti-ZEN, anti-DON, and anti-T2 mAb, respectively. The LFIA was developed in accordance with the European Commission legal limits with cutoff limits of 1000, 80, and 80 μg/kg for deoxynivalenol, zearalenone, and T2/HT2-toxin, respectively. The LFIA gave a fast result (15 min) with a low false-negative rate (<5%), and the results were easy to interpret without any sophisticated equipment.
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Affiliation(s)
- Astrid Foubert
- Faculty of Pharmaceutical Sciences, Department of Bioanalysis, Laboratory of Food Analysis, Ghent University , Ottergemsesteenweg 460, Ghent, Belgium
| | - Natalia V Beloglazova
- Faculty of Pharmaceutical Sciences, Department of Bioanalysis, Laboratory of Food Analysis, Ghent University , Ottergemsesteenweg 460, Ghent, Belgium
| | - Anna Gordienko
- Chemistry Institute, Department of General Inorganic Chemistry, Chemical Institute, Saratov State University , Astrakhanskaya 83, Saratov, Russia
| | - Mickael D Tessier
- Faculty of Sciences, Department of Inorganic and Physical Chemistry, Ghent University , Krijgslaan 281 S3, Ghent, Belgium
| | - Emile Drijvers
- Faculty of Sciences, Department of Inorganic and Physical Chemistry, Ghent University , Krijgslaan 281 S3, Ghent, Belgium
| | - Zeger Hens
- Faculty of Sciences, Department of Inorganic and Physical Chemistry, Ghent University , Krijgslaan 281 S3, Ghent, Belgium
| | - Sarah De Saeger
- Faculty of Pharmaceutical Sciences, Department of Bioanalysis, Laboratory of Food Analysis, Ghent University , Ottergemsesteenweg 460, Ghent, Belgium
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Li YF, Sun YM, Beier RC, Lei HT, Gee S, Hammock BD, Wang H, Wang Z, Sun X, Shen YD, Yang JY, Xu ZL. Immunochemical techniques for multianalyte analysis of chemical residues in food and the environment: A review. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2016.12.010] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Foubert A, Beloglazova NV, De Saeger S. Comparative study of colloidal gold and quantum dots as labels for multiplex screening tests for multi-mycotoxin detection. Anal Chim Acta 2017; 955:48-57. [DOI: 10.1016/j.aca.2016.11.042] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/13/2016] [Accepted: 11/18/2016] [Indexed: 01/01/2023]
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Gonçalves C, Stroka J. Cross-reactivity features of deoxynivalenol (DON)-targeted immunoaffinity columns aiming to achieve simultaneous analysis of DON and major conjugates in cereal samples. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2016; 33:1053-62. [PMID: 27243664 PMCID: PMC4917924 DOI: 10.1080/19440049.2016.1188436] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Accepted: 05/01/2016] [Indexed: 12/03/2022]
Abstract
Immunoaffinity columns (IACs) are a well-established tool in the determination of regulated mycotoxins in food and feed commodities. However, they also have the potential to become attractive pre-concentration and clean-up materials for the determination of masked (also called modified) mycotoxins, which have been recognised as important contributors to the toxicological hazard deriving from fungal spoilage of goods. However, the information available in the literature concerning the cross-reactivity of DON-IACs against the major conjugates (DON-3-G, 15-AcDON and 3-AcDON) is incomplete and often contradictory. We have carried out a detailed characterisation of the cross-reactivity of the four main IACs brands against DON and its conjugates as well as an assessment of the competition among the analytes. Only one IAC enabled the simultaneous analysis of all relevant DON forms while two missed 15-AcDON and the fourth one missed DON-3-G and 3-AcDON. In the case of the multivalent IAC, the analytes modified at the C-3 position compete for the antibody binding with preference for 3-AcDON (less spatially hindered) while DON-3-G has the more-hindered access to the active sites. Taking into consideration the levels of DON conjugates existing in real samples, the cross-reactivity of one DON-IAC allows a quantitative analysis of all of these analytes. Important but rather neglected aspects such as the continuous supply of IACs with identical characteristics, and of columns which are strictly blank, are also addressed in this paper.
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Affiliation(s)
- Carlos Gonçalves
- European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel, Belgium
| | - Joerg Stroka
- European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel, Belgium
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Sanders M, McPartlin D, Moran K, Guo Y, Eeckhout M, O'Kennedy R, De Saeger S, Maragos C. Comparison of Enzyme-Linked Immunosorbent Assay, Surface Plasmon Resonance and Biolayer Interferometry for Screening of Deoxynivalenol in Wheat and Wheat Dust. Toxins (Basel) 2016; 8:103. [PMID: 27077883 PMCID: PMC4848629 DOI: 10.3390/toxins8040103] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/28/2016] [Accepted: 03/30/2016] [Indexed: 11/16/2022] Open
Abstract
A sample preparation method was developed for the screening of deoxynivalenol (DON) in wheat and wheat dust. Extraction was carried out with water and was successful due to the polar character of DON. For detection, an enzyme-linked immunosorbent assay (ELISA) was compared to the sensor-based techniques of surface plasmon resonance (SPR) and biolayer interferometry (BLI) in terms of sensitivity, affinity and matrix effect. The matrix effects from wheat and wheat dust using SPR were too high to further use this screenings method. The preferred ELISA and BLI methods were validated according to the criteria established in Commission Regulation 519/2014/EC and Commission Decision 2002/657/EC. A small survey was executed on 16 wheat lots and their corresponding dust samples using the validated ELISA method. A linear correlation (r = 0.889) was found for the DON concentration in dust versus the DON concentration in wheat (LOD wheat: 233 μg/kg, LOD wheat dust: 458 μg/kg).
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Affiliation(s)
- Melanie Sanders
- Mycotoxin Prevention and Applied Microbiology Research Unit, United States Department of Agriculture-Agricultural Research Service-National Center for Agricultural Utilization Research (USDA-ARS-NCAUR), 1815 N. University Street, Peoria, IL 61604, USA.
| | - Daniel McPartlin
- School of Biotechnology, National Centre for Sensor Research and Biomedical Diagnostic Institute, Dublin City University, Dublin 9, Ireland.
| | - Kara Moran
- School of Biotechnology, National Centre for Sensor Research and Biomedical Diagnostic Institute, Dublin City University, Dublin 9, Ireland.
| | - Yirong Guo
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310029, China.
| | - Mia Eeckhout
- Department of Applied Biosciences, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium.
| | - Richard O'Kennedy
- School of Biotechnology, National Centre for Sensor Research and Biomedical Diagnostic Institute, Dublin City University, Dublin 9, Ireland.
| | - Sarah De Saeger
- Department of Bioanalysis, Laboratory of Food Analysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
| | - Chris Maragos
- Mycotoxin Prevention and Applied Microbiology Research Unit, United States Department of Agriculture-Agricultural Research Service-National Center for Agricultural Utilization Research (USDA-ARS-NCAUR), 1815 N. University Street, Peoria, IL 61604, USA.
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Liu R, Liu Y, Lan MJ, Taheri N, Cheng JL, Guo YR, Zhu GN. Evaluation of a water-soluble adjuvant for the development of monoclonal antibodies against small-molecule compounds *. J Zhejiang Univ Sci B 2016; 17:282-293. [PMCID: PMC4829633 DOI: 10.1631/jzus.b1500278] [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: 11/11/2015] [Accepted: 12/28/2015] [Indexed: 08/31/2023]
Abstract
A water-soluble adjuvant named QuickAntibody (QA) was introduced into the procedure of mouse immunization for the development of hapten-specific monoclonal antibodies (mAbs), using four kinds of pesticides as model compounds. Compared with conventional Freund’s adjuvants, QA treatments offered relatively low but acceptable antiserum titers after three inoculations, gave little adverse effects to the experimental animals, and were preferable in harvesting splenocytes during the steps of cell fusion. Afterwards, hybridomas from the QA group were prepared and screened by both non-competitive and competitive indirect enzyme-linked immunosorbent assays (ELISAs). The efficiency of gaining immune-positive hybridomas was satisfactory, and the resultant mAbs showed sensitivities (half maximal inhibitory concentration (IC50)) of 0.91, 2.46, 3.72, and 6.22 ng/ml to triazophos, parathion, chlorpyrifos, and fenpropathrin, respectively. Additionally, the performance of QA adjuvant was further confirmed by acquiring a high-affinity mAb against okadaic acid (IC50 of 0.36 ng/ml) after three immunizations. These newly developed mAbs showed similar or even better sensitivities compared with previously reported mAbs specific to the corresponding analytes. This study suggested that the easy-to-use adjuvant could be applicable to the efficient generation of highly sensitive mAbs against small compounds.
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Sanders M, Guo Y, Iyer A, García YR, Galvita A, Heyerick A, Deforce D, Risseeuw MDP, Van Calenbergh S, Bracke M, Eremin S, Madder A, De Saeger S. An immunogen synthesis strategy for the development of specific anti-deoxynivalenol monoclonal antibodies. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:1751-9. [PMID: 25230728 DOI: 10.1080/19440049.2014.955887] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
An immunogen synthesis strategy was designed to develop anti-deoxynivalenol (DON) monoclonal antibodies with low cross-reactivity against structurally similar trichothecenes. A total of eight different DON immunogens were synthesised, differing in the type and position of the linker on the DON molecule. After immunisation, antisera from mice immunised with different DON immunogens were checked for the presence of relevant antibodies. Then, both homologous and heterologous enzyme-linked immunosorbent assays (ELISAs) were performed for hybridoma screening. Finally, three monoclonal antibodies against DON and its analogues were generated. In addition, monoclonal antibody 13H1 could recognise DON and its analogues in the order of HT-2 toxin > 15-acetyldeoxynivalenol (15-ADON) > DON, with IC₅₀ ranging from 1.14 to 2.13 µg ml⁻¹. Another monoclonal antibody 10H10 manifested relatively close sensitivities to DON, 3-acetyldeoxynivalenol (3-ADON) and 15-ADON, with IC₅₀ values of 22, 15 and 34 ng ml⁻¹, respectively. Using an indirect ELISA format decreases the 10H10 sensitivity to 15-ADON with 92%. A third monoclonal antibody 2A9 showed to be very specific and sensitive to 3-ADON, with IC₅₀ of 0.38 ng ml⁻¹. Using both 2A9 and 10H10 monoclonal antibodies allows determining sole DON contamination.
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Affiliation(s)
- Melanie Sanders
- a Laboratory of Food Analysis , Ghent University , Ghent , Belgium
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Wang J, Bever CS, Majkova Z, Dechant JE, Yang J, Gee SJ, Xu T, Hammock BD. Heterologous antigen selection of camelid heavy chain single domain antibodies against tetrabromobisphenol A. Anal Chem 2014; 86:8296-302. [PMID: 25068372 PMCID: PMC4139172 DOI: 10.1021/ac5017437] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 07/28/2014] [Indexed: 12/14/2022]
Abstract
Tetrabromobisphenol A (TBBPA) is a ubiquitous flame retardant. A high-throughput immunoassay would allow for monitoring of human and environmental exposures as a part of risk assessment. Naturally occurring antibodies in camelids that are devoid of light chain, show great promise as an efficient tool in monitoring environmental contaminants, but they have been rarely used for small molecules. An alpaca was immunized with a TBBPA hapten coupled to thyroglobulin and a variable domain of heavy chain antibody (VHH) T3-15 highly selective for TBBPA was isolated from a phage displayed VHH library using heterologous coating antigens. Compared to the VHHs isolated using homologous antigens, VHH T3-15 had about a 10-fold improvement in sensitivity in an immunoassay. This assay, under the optimized conditions of 10% methanol in the assay buffer (pH 7.4), had an IC50 for TBBPA of 0.40 ng mL(-1) and negligible cross reactivity (<0.1%) with other tested analogues. After heating the VHH at 90 °C for 90 min about 20% of the affinity for coating antigen T3-BSA remained. The recoveries of TBBPA from spiked soil and fetal bovine serum samples ranged from 90.3% to 110.7% by ELISA and agreed well with a liquid chromatography-tandem mass spectrometry method. We conclude the many advantages of VHH make them attractive for the development of immunoassays to small molecules.
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Affiliation(s)
- Jia Wang
- College of Resources and Environmental
Sciences, Beijing Key Laboratory
of Biodiversity
and Organic Farming, China Agricultural
University, Beijing 100193, P.R. China
| | - Candace
R. S. Bever
- Department
of Entomology and UCD Comprehensive Cancer Center, Department of Surgical
and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
| | - Zuzana Majkova
- Department
of Entomology and UCD Comprehensive Cancer Center, Department of Surgical
and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
| | - Julie E. Dechant
- Department
of Entomology and UCD Comprehensive Cancer Center, Department of Surgical
and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
| | - Jun Yang
- Department
of Entomology and UCD Comprehensive Cancer Center, Department of Surgical
and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
| | - Shirley J. Gee
- Department
of Entomology and UCD Comprehensive Cancer Center, Department of Surgical
and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
| | - Ting Xu
- College of Resources and Environmental
Sciences, Beijing Key Laboratory
of Biodiversity
and Organic Farming, China Agricultural
University, Beijing 100193, P.R. China
| | - Bruce D. Hammock
- Department
of Entomology and UCD Comprehensive Cancer Center, Department of Surgical
and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
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