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Stanic B, Kokai D, Opacic M, Pogrmic-Majkic K, Andric N. Transcriptome-centric approach to the derivation of adverse outcome pathway networks of vascular dysfunction after long-term low-level exposure of human endothelial cells to dibutyl phthalate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174918. [PMID: 39038667 DOI: 10.1016/j.scitotenv.2024.174918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 07/18/2024] [Accepted: 07/18/2024] [Indexed: 07/24/2024]
Abstract
Dibutyl phthalate (DBP) is an endocrine disruptor that adversely affects reproduction; however, evidence suggests it can also impact other systems, including vascular function. The mechanisms underlying DBP-induced vascular dysfunction, particularly after long-term low-level exposure of endothelial cells to this phthalate, remain largely unknown. To address this gap, we used experimentally derived data on differentially expressed genes (DEGs) obtained after 12 weeks of exposure of human vascular endothelial cells EA.hy926 to the concentrations of DBP to which humans are routinely exposed (10-9 M, 10-8 M, and 10-7 M) and various computational tools and manual data curation to build the first adverse outcome pathway (AOP) network relevant to DBP-induced vascular toxicity. DEGs were used to infer transcription factors (molecular initiating events) and molecular functions and biological processes (key events, KEs) using the Enrichr database. The AOP-helpFinder 2.0, an artificial intelligence-based web tool, was used to link genes and KEs and assign confidence scores to co-occurred terms. We constructed the AOP networks using Cytoscape and then manually arranged KEs to depict the flow of mechanistic information across different levels of network organization. An AOP network was created for each DBP concentration, revealing several distinct high-confidence subnetworks that could be involved in DBP-induced vascular toxicity: the insulin-like growth factor subnetwork for 10-7 M DBP, the CXCL8-dependent chemokine subnetwork for 10-8 M DBP, and the fatty acid subnetwork for 10-9 M DBP. We also developed an AOP network providing a mechanistic insight into the dose-dependent effects of DBP in endothelial cells leading to vascular dysfunction. In summary, we present novel putative AOP networks describing the mechanistic flow of information involved in DBP-induced vascular dysfunction in a long-term low-level exposure scenario.
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Affiliation(s)
- Bojana Stanic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | - Dunja Kokai
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | - Marija Opacic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | | | - Nebojsa Andric
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia.
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Li X, Ma Y, Zhang Y, Zhang X, Li H, Sun Y, Niu Z. Porphyrin metabolism and carbon fixation response of Skeletonema costatum at different growth phases to mixed emerging PFASs at environmental concentrations. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024. [PMID: 38973378 DOI: 10.1039/d4em00137k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Per- and polyfluoroalkyl substances (PFASs), especially as emerging compounds, have been widely detected in coastal seawater. However, the awareness of the interaction between PFASs at environmental concentrations and marine diatoms is still limited. In this study, Skeletonema costatum was exposed to three co-existing PFASs, namely hexafluoropropylene oxide dimer acid (HFPO-DA), 6 : 2 chlorinated polyfluorinated ether sulfonate (Cl-PFAES), and perfluoroethylcyclohexane sulfonate (PFECHS) (15-300 ng L-1 in total), for 14 days. In the 300 ng L-1 test group, the significant down-regulation of chlorophyllide a in porphyrin metabolism, light-harvesting capacity and carbon fixation were the main inhibitory mechanisms of photosynthesis by emerging PFASs at the 14th day compared to the 8th day, which indicated that they may have a shading effect on S. costatum. Additionally, mixed PFASs could also activate nicotinamide adenine dinucleotide phosphate (NADPH) oxidase by up-regulating gene gp91 and down-regulating genes CaM4 and NDPK2 to generate excessive ROS. This resulted in a decrease in the algal biomass, which would further weaken the primary productivity of S. costatum. Our findings illustrated that mixed emerging PFASs at environmental concentrations may interfere with the carbon balance of marine diatoms.
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Affiliation(s)
- Xiaofeng Li
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Yongzheng Ma
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Ying Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Xiaohan Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Hongyu Li
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Yueling Sun
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Zhiguang Niu
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China.
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Gannesen AV, Schelkunov MI, Ziganshin RH, Ovcharova MA, Sukhacheva MV, Makarova NE, Mart'yanov SV, Loginova NA, Mosolova AM, Diuvenji EV, Nevolina ED, Plakunov VK. Proteomic and transcriptomic analyses of Cutibacterium acnes biofilms and planktonic cultures in presence of epinephrine. AIMS Microbiol 2024; 10:363-390. [PMID: 38919714 PMCID: PMC11194618 DOI: 10.3934/microbiol.2024019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/15/2024] [Accepted: 05/21/2024] [Indexed: 06/27/2024] Open
Abstract
Transcriptomic and proteomic analysis were performed on 72 h biofilms of the acneic strain Cutibacterium acnes and planktonic cultures in the presence of epinephrine. Epinephrine predominantly downregulated genes associated with various transporter proteins. No correlation was found between proteomic and transcriptomic profiles. In control samples, the expression of 51 proteins differed between planktonic cultures and biofilms. Addition of 5 nM epinephrine reduced this number, and in the presence of 5 µM epinephrine, the difference in proteomic profiles between planktonic cultures and biofilms disappeared. According to the proteomic profiling, epinephrine itself was more effective in the case of C. acnes biofilms and potentially affected the tricarboxylic acid cycle (as well as alpha-ketoglutarate decarboxylase Kgd), biotin synthesis, cell division, and transport of different compounds in C. acnes cells. These findings are consistent with recent research on Micrococcus luteus, suggesting that the effects of epinephrine on actinobacteria may be universal.
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Affiliation(s)
- AV Gannesen
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - MI Schelkunov
- Skolkovo Institute of Science and Technology, Moscow 121205, Russia
- Institute for Information Transmission Problems of Russian Academy of Sciences, Moscow 127051, Russia
| | - RH Ziganshin
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russia
| | - MA Ovcharova
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - MV Sukhacheva
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - NE Makarova
- Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | - SV Mart'yanov
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - NA Loginova
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - AM Mosolova
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
- Russian Biotechnological University, Moscow 125080, Russia
| | - EV Diuvenji
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - ED Nevolina
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
| | - VK Plakunov
- Federal Research Centre “Fundamentals of Biotechnology” of Russian Academy of Sciences, Moscow 119071, Russia
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Barrett NJ, Harper EM, Last KS, Reinardy HC, Peck LS. Behavioural and physiological impacts of low salinity on the sea urchin Echinus esculentus. J Exp Biol 2024; 227:jeb246707. [PMID: 38099430 PMCID: PMC10906488 DOI: 10.1242/jeb.246707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/06/2023] [Indexed: 01/17/2024]
Abstract
Reduced seawater salinity as a result of freshwater input can exert a major influence on the ecophysiology of benthic marine invertebrates, such as echinoderms. While numerous experimental studies have explored the physiological and behavioural effects of short-term, acute exposure to low salinity in echinoids, surprisingly few have investigated the consequences of chronic exposure, or compared the two. In this study, the European sea urchin, Echinus esculentus, was exposed to low salinity over the short term (11‰, 16‰, 21‰, 26‰ and 31‰ for 24 h) and longer term (21, 26 and 31‰ for 25 days). Over the short term, oxygen consumption, activity coefficient and coelomic fluid osmolality were directly correlated with reduced salinity, with 100% survival at ≥21‰ and 0% at ≤16‰. Over the longer term at 21‰ (25 days), oxygen consumption was significantly higher, feeding was significantly reduced and activity coefficient values were significantly lower than at control salinity (31‰). At 26‰, all metrics were comparable to the control by the end of the experiment, suggesting acclimation. Furthermore, beneficial functional resistance (righting ability and metabolic capacity) to acute low salinity was observed at 26‰. Osmolality values were slightly hyperosmotic to the external seawater at all acclimation salinities, while coelomocyte composition and concentration were unaffected by chronic low salinity. Overall, E. esculentus demonstrate phenotypic plasticity that enables acclimation to reduced salinity around 26‰; however, 21‰ represents a lower acclimation threshold, potentially limiting its distribution in coastal areas prone to high freshwater input.
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Affiliation(s)
- Nicholas J. Barrett
- British Antarctic Survey, Natural Environment Research Council, Cambridge CB3 0ET, UK
- Department of Earth Sciences, University of Cambridge, Cambridge CB2 3EQ, UK
| | - Elizabeth M. Harper
- British Antarctic Survey, Natural Environment Research Council, Cambridge CB3 0ET, UK
- Department of Earth Sciences, University of Cambridge, Cambridge CB2 3EQ, UK
| | - Kim S. Last
- The Scottish Association for Marine Science, Oban PA37 1QA, UK
| | - Helena C. Reinardy
- The Scottish Association for Marine Science, Oban PA37 1QA, UK
- Department of Arctic Technology, The University Centre in Svalbard, N-9171 Longyearbyen, Norway
| | - Lloyd S. Peck
- British Antarctic Survey, Natural Environment Research Council, Cambridge CB3 0ET, UK
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