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Chen Z, Tan R, Zeng M, Yuan X, Zhuang K, Feng C, He Y, Luo X. SERS detection of triazole pesticide residues on vegetables and fruits using Au decahedral nanoparticles. Food Chem 2024; 439:138110. [PMID: 38043282 DOI: 10.1016/j.foodchem.2023.138110] [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: 09/13/2023] [Revised: 11/11/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
Triazole pesticides are widely used in modern agricultural practices to improve agricultural production quality. Simultaneously, unreasonable and standardized use of triazole pesticides could induce a series of potential diseases of humans. Surface-enhanced Raman spectroscopy has attracted enormous research attention because of its label-free and fingerprint detection capability to noninvasively trace extremely low concentration analytes. To the best of our knowledge, there is a lack of systematic comparison regarding the Raman spectral information of triazole pesticides in existing literatures. In this work, we successfully captured the characteristic peaks of six different triazole pesticides individually and simultaneously using Au decahedral nanoparticles. The proposed method exhibited remarkable detection sensitivity, a wide dynamic range, and the capability for in-situ detection of multiple pesticide residues on bean, apple, and vegetable surfaces with satisfactory recovery rates. Therefore, our proposed SERS platform have great applications in agricultural products safety, environmental monitoring and other fields.
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Affiliation(s)
- Zhinan Chen
- School of Science, Xihua University, Chengdu, Sichuan 610039, China
| | - Rui Tan
- School of Science, Xihua University, Chengdu, Sichuan 610039, China
| | - Mei Zeng
- School of Science, Xihua University, Chengdu, Sichuan 610039, China
| | - Xue Yuan
- School of Science, Xihua University, Chengdu, Sichuan 610039, China
| | - Kaiyi Zhuang
- School of Science, Xihua University, Chengdu, Sichuan 610039, China
| | - Changsheng Feng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China.
| | - Yi He
- School of Science, Xihua University, Chengdu, Sichuan 610039, China; Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Chengdu 610039, China.
| | - Xiaojun Luo
- School of Science, Xihua University, Chengdu, Sichuan 610039, China; Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Chengdu 610039, China.
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Singh S, Varshney N, Singothu S, Bhandari V, Jha HC. Influence of chlorpyrifos and endosulfan and their metabolites on the virulence of Helicobacter pylori. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123676. [PMID: 38442821 DOI: 10.1016/j.envpol.2024.123676] [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: 01/08/2024] [Revised: 02/10/2024] [Accepted: 02/27/2024] [Indexed: 03/07/2024]
Abstract
Organochlorine (OC) and organophosphorus (OP) pesticides such as chlorpyrifos (CPF) and endosulfan (ES) have been associated with a plethora of adverse health effects. Helicobacter pylori (H. pylori) infection can lead to gastrointestinal diseases by regulating several cellular processes. Thus, the current study focuses on the effect of the co-exposure to pesticides and H. pylori on gastric epithelial cells. We have used the in-silico approach to determine the interactive potential of pesticides and their metabolites with H. pylori-associated proteins. Further, various in-vitro methods depict the potential of ES in enhancing the virulence of H. pylori. Our results showed that ES along with H. pylori affects the mitochondrial dynamics, increases the transcript expression of mitochondrial fission genes, and lowers the mitochondrial membrane potential and biomass. They also promote inflammation and lower oxidative stress as predicted by ROS levels. Furthermore, co-exposure induces the multi-nucleated cells in gastric epithelial cells. In addition, ES along with H. pylori infection follows the extrinsic pathway for apoptotic signaling. H. pylori leads to the NF-κB activation which in turn advances the β-catenin expression. The expression was further enhanced in the co-exposure condition and even more prominent in co-exposure with ES-conditioned media. Thus, our study demonstrated that pesticide and their metabolites enhance the pathogenicity of H. pylori infection.
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Affiliation(s)
- Siddharth Singh
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Nidhi Varshney
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Siva Singothu
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Hyderabad, India
| | - Vasundhra Bhandari
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Hyderabad, India.
| | - Hem Chandra Jha
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India.
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3
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Wang N, Wang Y, Sun A, Zhang Z, Shi X. Accumulation and elimination properties and comparative toxicity of fluxapyroxad in juvenile and adult large yellow croaker (Larimichthys crocea). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168979. [PMID: 38036135 DOI: 10.1016/j.scitotenv.2023.168979] [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: 08/30/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/02/2023]
Abstract
Fluxapyroxad (FX), a succinate dehydrogenase inhibitor fungicide, has been detected in global marine and aquatic organisms. However, as a new pollutant, its biotoxicity and ecological risks to marine aquatic organisms are unclear. The accumulation and elimination processes and toxic effects of FX on Larimichthys crocea (L. crocea) at environmental concentrations were assessed. FX (1.0 μg/L) was rapidly enriched and persisted prolonged in L. crocea muscle and FX is highly toxic to juvenile L. crocea with the 96 h LC50 of 245.0 μg/L. Furthermore, the toxic effects of FX on juvenile L. crocea and adults L. crocea were compared and analyzed. In contrast to those of adult L. crocea, juvenile L. crocea showed a stronger oxidative stress response and rescued liver damage in terms of antioxidant enzyme activity, energy supply, and liver damage to FX. Transcriptomic analysis also showed that drug metabolism was activated. In the adult L. crocea, the disturbance of the energy metabolism, oxidative respiration, TCA cycle, and lipid metabolism genes were firstly found. The results revealed the accumulation and elimination pattern and ecotoxicological hazards of FX to L. crocea, which provided important theoretical basis for the study of environmental risks caused by new pollutants to marine organisms.
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Affiliation(s)
- Ningbo Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Yinan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Aili Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Zeming Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Xizhi Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China.
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Quanrud GM, Lyu Z, Balamurugan SV, Canizal C, Wu HT, Genereux JC. Cellular Exposure to Chloroacetanilide Herbicides Induces Distinct Protein Destabilization Profiles. ACS Chem Biol 2023; 18:1661-1676. [PMID: 37427419 PMCID: PMC10367052 DOI: 10.1021/acschembio.3c00338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023]
Abstract
Herbicides in the widely used chloroacetanilide class harbor a potent electrophilic moiety, which can damage proteins through nucleophilic substitution. In general, damaged proteins are subject to misfolding. Accumulation of misfolded proteins compromises cellular integrity by disrupting cellular proteostasis networks, which can further destabilize the cellular proteome. While direct conjugation targets can be discovered through affinity-based protein profiling, there are few approaches to probe how cellular exposure to toxicants impacts the stability of the proteome. We apply a quantitative proteomics methodology to identify chloroacetanilide-destabilized proteins in HEK293T cells based on their binding to the H31Q mutant of the human Hsp40 chaperone DNAJB8. We find that a brief cellular exposure to the chloroacetanilides acetochlor, alachlor, and propachlor induces misfolding of dozens of cellular proteins. These herbicides feature distinct but overlapping profiles of protein destabilization, highly concentrated in proteins with reactive cysteine residues. Consistent with the recent literature from the pharmacology field, reactivity is driven by neither inherent nucleophilic nor electrophilic reactivity but is idiosyncratic. We discover that propachlor induces a general increase in protein aggregation and selectively targets GAPDH and PARK7, leading to a decrease in their cellular activities. Hsp40 affinity profiling identifies a majority of propachlor targets identified by competitive activity-based protein profiling (ABPP), but ABPP can only identify about 10% of protein targets identified by Hsp40 affinity profiling. GAPDH is primarily modified by the direct conjugation of propachlor at a catalytic cysteine residue, leading to global destabilization of the protein. The Hsp40 affinity strategy is an effective technique to profile cellular proteins that are destabilized by cellular toxin exposure. Raw proteomics data is available through the PRIDE Archive at PXD030635.
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Affiliation(s)
- Guy M. Quanrud
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Ziqi Lyu
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Sunil V. Balamurugan
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Carolina Canizal
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Hoi-Ting Wu
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Joseph C. Genereux
- Department of Chemistry, University of California, Riverside, California 92521, United States
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Devi S, Chaturvedi M, Fatima S, Priya S. Environmental factors modulating protein conformations and their role in protein aggregation diseases. Toxicology 2022; 465:153049. [PMID: 34818560 DOI: 10.1016/j.tox.2021.153049] [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: 08/18/2021] [Revised: 11/12/2021] [Accepted: 11/20/2021] [Indexed: 12/13/2022]
Abstract
The adverse physiological conditions have been long known to impact protein synthesis, folding and functionality. Major physiological factors such as the effect of pH, temperature, salt and pressure are extensively studied for their impact on protein structure and homeostasis. However, in the current scenario, the environmental risk factors (pollutants) have gained impetus in research because of their increasing concentrations in the environment and strong epidemiologic link with protein aggregation disorders. Here, we review the physiological and environmental risk factors for their impact on protein conformational changes, misfolding, aggregation, and associated pathological conditions, especially environmental risk factors associated pathologies.
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Affiliation(s)
- Shweta Devi
- Systems Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, CSIR-Indian Institute of Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Minal Chaturvedi
- Systems Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, CSIR-Indian Institute of Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Siraj Fatima
- Systems Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, CSIR-Indian Institute of Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Smriti Priya
- Systems Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, CSIR-Indian Institute of Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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