1
|
Yang H, Xu D. Highly-sensitive and simple fluorescent aptasensor for 17 b-estradiol detection coupled with HCR-HRP structure. Talanta 2022; 240:123094. [PMID: 35026636 DOI: 10.1016/j.talanta.2021.123094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 01/14/2023]
Abstract
As an important kind of environmental endocrine disruptors, 17 β -Estradiol (E2) plays a major role in affecting the growth of human including sexual characters, pregnancy system, etc. In the modern society, with the threat of abuse in breeding, it is imperative to design sensitive methods for detecting low concentration of E2 in environment. In this work, we constructed a highly sensitive and simple fluorescent aptasenor for detecting E2 via amplification of hybridization chain reaction (HCR) and horseradish peroxidase (HRP). Through the competitions between complementary strand (cmDNA) and E2 to E2 aptamer modified on magnetic beads, the unbound cmDNA would be collected and captured by polystyrene microspheres to induce HCR which brought abundant biotin sites. Subsequently, benefit from the excellent catalytic performance of streptavidin-horseradish peroxidase (SA-HRP), the highly sensitive fluorescence signals could be obtained in low concentration of E2. Under the optimal conditions, the prospered method for E2 detection was shown a good liner range from 1 to 100 pg/mL, with the lower detecting limit of 0.2 pg/mL compared with previous work. In addition, the recovery rates tested in the real samples of milk and water were 99.20%-108.06% and 91.07%-106.13%. In all, the assay may provide a perspective way for highly sensitive detection for various contaminants in the real samples.
Collapse
Affiliation(s)
- Hao Yang
- State Key Laboratory of Analytical Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing, 210023, China
| | - Danke Xu
- State Key Laboratory of Analytical Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing, 210023, China.
| |
Collapse
|
2
|
Determination of 17β-estradiol by surface-enhanced Raman spectroscopy merged with hybridization chain reaction amplification on Au@Ag core-shell nanoparticles. Mikrochim Acta 2019; 186:52. [DOI: 10.1007/s00604-018-3114-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 11/25/2018] [Indexed: 10/27/2022]
|
3
|
Akki SU, Werth CJ. Critical Review: DNA Aptasensors, Are They Ready for Monitoring Organic Pollutants in Natural and Treated Water Sources? ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:8989-9007. [PMID: 30016080 DOI: 10.1021/acs.est.8b00558] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
There is a growing need to monitor anthropogenic organic contaminants detected in water sources. DNA aptamers are synthetic single-stranded oligonucleotides, selected to bind to target contaminants with favorable selectivity and sensitivity. These aptamers can be functionalized and are used with a variety of sensing platforms to develop sensors, or aptasensors. In this critical review, we (1) identify the state-of-the-art in DNA aptamer selection, (2) evaluate target and aptamer properties that make for sensitive and selective binding and sensing, (3) determine strengths and weaknesses of alternative sensing platforms, and (4) assess the potential for aptasensors to quantify environmentally relevant concentrations of organic contaminants in water. Among a suite of target and aptamer properties, binding affinity is either directly (e.g., organic carbon partition coefficient) or inversely (e.g., polar surface area) correlated to properties that indicate greater target hydrophobicity results in the strongest binding aptamers, and binding affinity is correlated to aptasensor limits of detection. Electrochemical-based aptasensors show the greatest sensitivity, which is similar to ELISA-based methods. Only a handful of aptasensors can detect organic pollutants at environmentally relevant concentrations, and interference from structurally similar analogs commonly present in natural waters is a yet-to-be overcome challenge. These findings lead to recommendations to improve aptasensor performance.
Collapse
Affiliation(s)
- Spurti U Akki
- Department of Civil and Environmental Engineering , University of Illinois at Urbana-Champaign , 205 North Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Charles J Werth
- Department of Civil, Architecture, and Environmental Engineering , University of Texas at Austin , 301 East Dean Keeton Street , Austin , Texas 78712 , United States
| |
Collapse
|
4
|
Kanso H, Inguimbert N, Istamboulie G, Barthelmebs L, Calas-Blanchard C, Noguer T. Chemiluminescence immunoassays for estradiol and ethinylestradiol based on new biotinylated estrogen derivatives. Anal Biochem 2017; 537:63-68. [PMID: 28870829 DOI: 10.1016/j.ab.2017.08.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 11/25/2022]
Abstract
New chemiluminescence-based immunoassays for sensitive detection of 17-β estradiol (E2) and ethinylestradiol (EE2) are described on the basis of the use of biotinylated estrogen derivatives. Estrogen derivatives bearing a carboxylic group (E2-COOH and EE2-COOH) on C-3 position were synthesized, covalently bound to aminated biotin and subsequently immobilized on avidin-coated microtiter plates. The assay principle was based on competition between free and immobilized estrogens for their binding to primary antibodies, with subsequent revelation using horseradish peroxidase (HRP)-labeled secondary antibodies. Under optimized conditions, the chemiluminescence immunoassays showed a highly sensitive response to E2 and EE2, with respective detection limits of 0.5 and 1.2 ng L-1. The LOD achieved using biotinylated E2 was in the same order of magnitude as those obtained using commercially available E2-bovine serum albumin conjugate (E2-BSA). The developed devices were successfully applied to analysis wastewater treatment plants effluents (WWTP) with negligible matrix effect.
Collapse
Affiliation(s)
- Hussein Kanso
- Univ. Perpignan Via Domitia, Biocapteurs-Analyses-Environnement, 66860, Perpignan, France; Laboratoire de Biodiversité et Biotechnologies Microbiennes, USR 3579 Sorbonne Universités (UPMC) Paris 6 et CNRS Observatoire Océanologique, 66650, Banyuls-sur-Mer, France
| | - Nicolas Inguimbert
- Univ. Perpignan Via Domitia, Centre de Recherche Insulaire et Observatoire de l'Environnement (CRIOBE), USR CNRS 3278, 66860, Perpignan, France
| | - Georges Istamboulie
- Univ. Perpignan Via Domitia, Biocapteurs-Analyses-Environnement, 66860, Perpignan, France; Laboratoire de Biodiversité et Biotechnologies Microbiennes, USR 3579 Sorbonne Universités (UPMC) Paris 6 et CNRS Observatoire Océanologique, 66650, Banyuls-sur-Mer, France
| | - Lise Barthelmebs
- Univ. Perpignan Via Domitia, Biocapteurs-Analyses-Environnement, 66860, Perpignan, France; Laboratoire de Biodiversité et Biotechnologies Microbiennes, USR 3579 Sorbonne Universités (UPMC) Paris 6 et CNRS Observatoire Océanologique, 66650, Banyuls-sur-Mer, France
| | - Carole Calas-Blanchard
- Univ. Perpignan Via Domitia, Biocapteurs-Analyses-Environnement, 66860, Perpignan, France; Laboratoire de Biodiversité et Biotechnologies Microbiennes, USR 3579 Sorbonne Universités (UPMC) Paris 6 et CNRS Observatoire Océanologique, 66650, Banyuls-sur-Mer, France
| | - Thierry Noguer
- Univ. Perpignan Via Domitia, Biocapteurs-Analyses-Environnement, 66860, Perpignan, France; Laboratoire de Biodiversité et Biotechnologies Microbiennes, USR 3579 Sorbonne Universités (UPMC) Paris 6 et CNRS Observatoire Océanologique, 66650, Banyuls-sur-Mer, France.
| |
Collapse
|
5
|
Wang P, Dang L, Zhu BT. Use of computational modeling approaches in studying the binding interactions of compounds with human estrogen receptors. Steroids 2016; 105:26-41. [PMID: 26639429 DOI: 10.1016/j.steroids.2015.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/08/2015] [Accepted: 11/05/2015] [Indexed: 11/25/2022]
Abstract
Estrogens have a whole host of physiological functions in many human organs and systems, including the reproductive, cardiovascular, and central nervous systems. Many naturally-occurring compounds with estrogenic or antiestrogenic activity are present in our environment and food sources. Synthetic estrogens and antiestrogens are also important therapeutic agents. At the molecular level, estrogen receptors (ERs) mediate most of the well-known actions of estrogens. Given recent advances in computational modeling tools, it is now highly practical to use these tools to study the interaction of human ERs with various types of ligands. There are two common categories of modeling techniques: one is the quantitative structure activity relationship (QSAR) analysis, which uses the structural information of the interacting ligands to predict the binding site properties of a macromolecule, and the other one is molecular docking-based computational analysis, which uses the 3-dimensional structural information of both the ligands and the receptor to predict the binding interaction. In this review, we discuss recent results that employed these and other related computational modeling approaches to characterize the binding interaction of various estrogens and antiestrogens with the human ERs. These examples clearly demonstrate that the computational modeling approaches, when used in combination with other experimental methods, are powerful tools that can precisely predict the binding interaction of various estrogenic ligands and their derivatives with the human ERs.
Collapse
Affiliation(s)
- Pan Wang
- Department of Pharmacology, Toxicology and Therapeutics, School of Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA; Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Li Dang
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China
| | - Bao-Ting Zhu
- Department of Pharmacology, Toxicology and Therapeutics, School of Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA; Department of Biology, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China.
| |
Collapse
|
6
|
Spotorno VG, Tezón JG. Development of an antigen-biotin conjugate with a protein bridge and its application for the development of an enzyme immunoassay. FOOD AGR IMMUNOL 2012. [DOI: 10.1080/09540105.2011.629314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
|
7
|
George O, Bryant BK, Chinnasamy R, Corona C, Arterburn JB, Shuster CB. Bisphenol A directly targets tubulin to disrupt spindle organization in embryonic and somatic cells. ACS Chem Biol 2008; 3:167-79. [PMID: 18225860 PMCID: PMC3844426 DOI: 10.1021/cb700210u] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
There is increasing concern that animal and human reproduction may be adversely affected by exposure to xenoestrogens that activate estrogen receptors. There is evidence that one such compound, Bisphenol A (BPA), also induces meiotic and mitotic aneuploidy, suggesting that these kinds of molecules may also have effects on cell division. In an effort to understand how Bisphenol A might disrupt cell division, a phenotypic analysis was carried out using sea urchin eggs, whose early embryonic divisions are independent of zygotic transcription. Fertilized Lytechinus pictus eggs exposed to BPA formed multipolar spindles resulting in failed cytokinesis in a dose-dependent, transcriptionally independent manner. By use of novel biotinylated BPA affinity probes to fractionate cell-free extracts, tubulin was identified as a candidate binding protein by mass spectrometry, and BPA promoted microtubule polymerization and centrosome-based microtubule nucleation in vitro but did not appear to display microtubule-stabilizing activity. Treatment of mammalian cells demonstrated that BPA as well as a series of Bisphenol A derivatives induced ectopic spindle pole formation in the absence of centrosome overduplication. Together, these results suggest a novel mechanism by which Bisphenol A affects the nucleation of microtubules, disrupting the tight spatial control associated with normal chromosome segregation, resulting in aneuploidy.
Collapse
Affiliation(s)
- Olivia George
- Department of Biology, New Mexico State University, Las Cruces NM, 88003
- the Marine Biological Laboratory, Woods Hole MA 02543
| | - Bj K. Bryant
- Department of Biochemistry and Chemistry, New Mexico State University, Las Cruces NM, 88003
| | - Ramesh Chinnasamy
- Department of Biochemistry and Chemistry, New Mexico State University, Las Cruces NM, 88003
| | - Cesear Corona
- Department of Biochemistry and Chemistry, New Mexico State University, Las Cruces NM, 88003
| | - Jeffrey B. Arterburn
- Department of Biochemistry and Chemistry, New Mexico State University, Las Cruces NM, 88003
| | - Charles B. Shuster
- Department of Biology, New Mexico State University, Las Cruces NM, 88003
- the Marine Biological Laboratory, Woods Hole MA 02543
| |
Collapse
|
8
|
Persson H, Lantto J, Ohlin M. A focused antibody library for improved hapten recognition. J Mol Biol 2006; 357:607-20. [PMID: 16445941 DOI: 10.1016/j.jmb.2006.01.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2005] [Revised: 12/22/2005] [Accepted: 01/03/2006] [Indexed: 11/29/2022]
Abstract
The topography of the antigen-binding site as well as the number and the positioning of the antigen contact residues are strongly correlated with the size of the antigen with which the antibody interacts. On the basis of these considerations, we have designed a focused scFv repertoire biased for haptens, designated the cavity library. The hapten-specific scFv, FITC8, was used as a scaffold for library construction. FITC8, like other hapten binders, displays a characteristic cavity in its paratope into which the hapten binds. In five of the six complementarity-determining regions, diversity-carrying residues were selected rationally on the basis of a model structure of FITC8 and on known antibody structure-function relationships, resulting in variation of 11 centrally located, cavity-lining residues. L3 was allowed to carry a more complex type of diversity. In addition, length variation was introduced into H2, as longer versions of this loop have been shown to correlate with increased hapten binding. The library was screened, using phage display, against a panel of five different haptens, yielding diverse and highly specific binders to four of the antigens. Parallel selections were performed with a library having diversity spread onto a greater area, including more peripherally located residues. This resulted in the isolation of binders, which, in contrast to the clones selected from the cavity library, were not able to bind to the soluble hapten in the absence of the carrier protein. Thus, we have shown that by focusing diversity to the hotspots of interaction a library with improved hapten-binding ability can be created. The study supports the notion that it is possible to create antibody libraries that are biased for the recognition of antigens of pre-defined size.
Collapse
Affiliation(s)
- Helena Persson
- Department of Immunotechnology, Lund University, P.O. Box 7031, SE-220 07 Lund, Sweden
| | | | | |
Collapse
|