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Topal A, Oğuş H, Sulukan E, Comaklı S, Ceyhun SB. Okadaic acid enhances NfKB, TLR-4, caspase 3, ERK ½, c-FOS, and 8-OHdG signaling pathways activation in brain tissues of zebrafish larvae. FISH & SHELLFISH IMMUNOLOGY 2024; 149:109529. [PMID: 38561069 DOI: 10.1016/j.fsi.2024.109529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
This study was designed to investigate the potential neuronal damage mechanism of the okadaic acid (OA) in the brain tissues of zebrafish embryos by evaluating in terms of immunofluorescence of Nf KB, TLR-4, caspase 3, ERK ½, c-FOS and 8-OHdG signaling pathways. We also evaluated body malformations. For this purpose, zebrafish embryos were exposed to 0.5 μg/ml, 1 μg/ml and 2.5 μg/ml of OA for 5 days. After application, FITC/GFP labeled protein-specific antibodies were used in immunofluorescence assay for NfKB, TLR-4, caspase 3, ERK ½, c-FOS and 8-OHdG respectively. The results indicated that OA caused immunofluorescence positivity of NfKB, TLR-4, caspase 3, ERK ½, c-FOS and 8-OHdG in a dose-dependent manner in the brain tissues of zebrafish embryos. Pericardial edema (PE), nutrient sac edema (YSE) and body malformations, tail malformation, short tail and head malformation (BM) were detected in zebrafish embryos. These results suggest that OA induces neuronal damage by affecting the modulation of DNA damage, apoptotic, and inflammatory activities in the brain tissues of zebrafish embryos. The increase in signaling pathways shows that OA can cause damage in the structure and function of brain nerve cells. Our results provide a new basis for the comprehensive assessment of the neural damage of OA and will offer enable us to better understand molecular the mechanisms underlying the pathophysiology of OA toxicity.
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Affiliation(s)
- Ahmet Topal
- Department of Basic Sciences, Faculty of Fisheries, Atatürk University, TR-25030, Erzurum, Turkey.
| | - Hatice Oğuş
- Department of Basic Sciences, Faculty of Fisheries, Atatürk University, TR-25030, Erzurum, Turkey
| | - Ekrem Sulukan
- Department of Basic Sciences, Faculty of Fisheries, Atatürk University, TR-25030, Erzurum, Turkey
| | - Selim Comaklı
- Department of Pathology, Faculty of Veterinary, Atatürk University, TR-25030, Erzurum, Turkey
| | - Saltuk Buğrahan Ceyhun
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, TR-25030, Erzurum, Turkey; Aquatic Biotechnology Laboratory, Fisheries Faculty, Atatürk University, Erzurum, Turkey
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Zhou Y, Chen Q, Huang G, Huang S, Lin C, Lin X, Xie Z. Oriented-aptamer encoded magnetic nanosensor with laser-induced fluorescence for ultrasensitive test of okadaic acid. Talanta 2024; 266:124984. [PMID: 37549567 DOI: 10.1016/j.talanta.2023.124984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/19/2023] [Accepted: 07/23/2023] [Indexed: 08/09/2023]
Abstract
Okadaic acid (OA) biotoxin acts a well-established inhibitor of protein phosphatase even a tumor promoter of human being, arouse great attention in safety monitoring. However, the powerful and convenient nanosensing technologies for addressing the demands such as rapidity, high sensitivity, and stability in the in-field test of OA shellfish toxin is still scarce. Herein, a high-performance magnetic biometric nanosensor (MBNS) integrating oriented aptamers and ultrasensitive laser-induced fluorescence (LIF) was firstly proposed for the in-field detection of trace OA in seafoods. High-density aptamers hybridized with FAM-labeled cDNA were tethered to the surface of AuNPs on magnetic MIL-101@Fe3O4, and then finely regulated by mercaptohexyl alcohol (MCH) to be orderly assembled, as was successfully utilized to engineer an active biological nanosensor for highly specific recognition of OA. Aptamers anchored on magnetic Fe3O4@MOF@AuNPs activate a biometric microreactor of OA, in which the superior LIF properties, conformation regulation of aptamer, and the specific recognition using aptamer genes were adopted. The magnetic nanosensor with an excellent specificity and super sensitivity for OA analysis was achieved within 20 min. Moreover, the content of captured OA could facilely be recorded by measuring the fluorescence intensity, and the limit of detection (LOD) and limit of quantitation of OA (LOQ) reached 0.015 and 0.050 ng/mL respectively, which was far better than most aptamer-based biometric sensing methods. The feasibility for accurate test of trace OA toxin in the fortified shellfish samples was validated with the recovery yields of 88.2-107.5% and RSD of 0.5-7.6%, respectively. The result demonstrated that the oriented-aptamer encoded MNS had significant practical values in rapid and ultrasensitive detection of OA biotoxin and the related safety applications.
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Affiliation(s)
- Yuwei Zhou
- Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, China
| | - Qingai Chen
- College of Tourism and Leisure Management, Fujian Business University, Fuzhou, Fujian, 350012, China
| | - Guobin Huang
- Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, China
| | - Shukun Huang
- Zhicheng College, Fuzhou University, 350102, China.
| | - Chenchen Lin
- Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, China
| | - Xucong Lin
- Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, China; Engineering Technology Research Center on Reagent and Instrument for Rapid Detection of Product Quality and Food Safety in Fujian Province, Fuzhou University, Fuzhou, 350108, China.
| | - Zenghong Xie
- Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, China
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Arnett LP, Rana R, Chung WWY, Li X, Abtahi M, Majonis D, Bassan J, Nitz M, Winnik MA. Reagents for Mass Cytometry. Chem Rev 2023; 123:1166-1205. [PMID: 36696538 DOI: 10.1021/acs.chemrev.2c00350] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Mass cytometry (cytometry by time-of-flight detection [CyTOF]) is a bioanalytical technique that enables the identification and quantification of diverse features of cellular systems with single-cell resolution. In suspension mass cytometry, cells are stained with stable heavy-atom isotope-tagged reagents, and then the cells are nebulized into an inductively coupled plasma time-of-flight mass spectrometry (ICP-TOF-MS) instrument. In imaging mass cytometry, a pulsed laser is used to ablate ca. 1 μm2 spots of a tissue section. The plume is then transferred to the CyTOF, generating an image of biomarker expression. Similar measurements are possible with multiplexed ion bean imaging (MIBI). The unit mass resolution of the ICP-TOF-MS detector allows for multiparametric analysis of (in principle) up to 130 different parameters. Currently available reagents, however, allow simultaneous measurement of up to 50 biomarkers. As new reagents are developed, the scope of information that can be obtained by mass cytometry continues to increase, particularly due to the development of new small molecule reagents which enable monitoring of active biochemistry at the cellular level. This review summarizes the history and current state of mass cytometry reagent development and elaborates on areas where there is a need for new reagents. Additionally, this review provides guidelines on how new reagents should be tested and how the data should be presented to make them most meaningful to the mass cytometry user community.
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Affiliation(s)
- Loryn P Arnett
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Rahul Rana
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Wilson Wai-Yip Chung
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Xiaochong Li
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Mahtab Abtahi
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Daniel Majonis
- Standard BioTools Canada Inc. (formerly Fluidigm Canada Inc.), 1380 Rodick Road, Suite 400, Markham, OntarioL3R 4G5, Canada
| | - Jay Bassan
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Mark Nitz
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Mitchell A Winnik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada.,Department of Chemical Engineering and Applied Chemistry, 200 College Street, Toronto, OntarioM5S 3E5, Canada
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NAN DN, LIU WW, FU WX, LI BQ, KONG JL. Study on Fast Recognition of Biotoxins and Biological Modifiers Using Data Fusion Algorithm. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1016/s1872-2040(20)60052-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Pinzaru SC, Müller C, Ujević I, Venter MM, Chis V, Glamuzina B. Lipophilic marine biotoxins SERS sensing in solutions and in mussel tissue. Talanta 2018; 187:47-58. [DOI: 10.1016/j.talanta.2018.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/27/2018] [Accepted: 05/01/2018] [Indexed: 11/25/2022]
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Guo X, Yao J, Liu X, Wang H, Zhang L, Xu L, Hao A. LaPO 4:Eu fluorescent nanorods, synthesis, characterization and spectroscopic studies on interaction with human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 198:248-256. [PMID: 29549866 DOI: 10.1016/j.saa.2018.02.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 01/25/2018] [Accepted: 02/24/2018] [Indexed: 06/08/2023]
Abstract
Eu3+ doped LaPO4 fluorescent nanorods (LaPO4:Eu) was successfully fabricated by a hydrothermal process. The obtained LaPO4:Eu nanorods under the optimal conditions were characterized by means of transmission electron microscopy (TEM), X-ray diffraction (XRD) technique, Fourier transform infrared (FTIR), UV-vis absorption and fluorescence spectroscopy. The nanorods with a length of 50-100nm and a diameter of about 10nm, can emit strong red fluorescence upon excitation at 241nm. The FTIR result confirmed that there are lots of phosphate groups on the surfaces of nanorods. In order to better understand the physiological behavior of nanorods in human body, multiple spectroscopic methods were used to study the interaction between the LaPO4:Eu nanorods and human serum albumin (HSA) in the simulated physiological conditions. The results indicated that the nanorods can effectively quench the intrinsic fluorescence of HSA through a dynamic quenching mode with the association constants of the order of 103Lmol-1. The values of the thermodynamic parameters suggested that the binding of the nanorods to HSA was a spontaneous process and van der Waals forces and hydrogen bonds played a predominant role. The displacement experiments verified that the binding site of nanorods on HSA was mainly located in the hydrophobic pocket of subdomain IIA (site I) of HSA. The binding distance between nanorods and HSA was calculated to be 4.2nm according to the theory of Förster non-radiation energy transfer. The analysis of synchronous fluorescence, three-dimensional fluorescence (3D) and circular dichroism (CD) spectra indicated that there the addition of LaPO4:Eu nanorods did not caused significant alterations in conformation of HSA secondary structure and the polarity around the amino acid residues.
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Affiliation(s)
- Xingjia Guo
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Jie Yao
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Xuehui Liu
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Hongyan Wang
- Jingzhou Products Quality Supervision and Testing Institute, Jinzhou 121000, PR China
| | - Lizhi Zhang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Liping Xu
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Aijun Hao
- College of Pharmacy, Liaoning University, Shenyang 110036, PR China.
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