1
|
Xie M, Bao Y, Xie X, Ying Z, Ye G, Li C, Guo Q, Zhang W, Luo Z. Integrated transcriptomics and metabolomics reveal the toxic mechanisms of mercury exposure to an endangered species Tachypleus tridentatus. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 105:104345. [PMID: 38103811 DOI: 10.1016/j.etap.2023.104345] [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: 08/14/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
Mercury (Hg) pollution is threatening the health of endangered Tachypleus tridentatus whereas the toxic mechanism is still unclear. This study combined transcriptomic and metabolomics technology to reveal the toxic mechanisms of mercury (Hg 2+, 0.025 mg/L) exposing to T. tridentatus larvae for 15 days. Mercury induced cellular toxicity and cardiovascular dysfunction by dysregulating the genes related to endocrine system, such as polyubiquitin-A, cathepsin B, atrial natriuretic peptide, etc. Mercury induced lipid metabolic disorder with the abnormal increase of lysoPC, leukotriene D4, and prostaglandin E2. Cytochrome P450 pathway was activated to produce anti-inflammatory substances to reconstruct the homeostasis. Mercury also inhibited arginine generation, which may affect the development of T. tridentatus by disrupting the crucial signaling pathway. The mercury methylation caused enhancement of S-adenosylmethionine to meet the need of methyl donor. The mechanisms described in present study provide new insight into the risk assessment of mercury exposure to T. tridentatus.
Collapse
Affiliation(s)
- Mujiao Xie
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Yuyuan Bao
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Guangdong Center for Marine Development Research, Guangzhou 510322, China
| | - Xiaoyong Xie
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Sanya Tropical Fisheries Research Institute, Sanya 570203, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
| | - Ziwei Ying
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Sanya Tropical Fisheries Research Institute, Sanya 570203, China
| | - Guoling Ye
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Sanya Tropical Fisheries Research Institute, Sanya 570203, China
| | - Chunhou Li
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Qingyang Guo
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Sanya Tropical Fisheries Research Institute, Sanya 570203, China
| | - Wanling Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Sanya Tropical Fisheries Research Institute, Sanya 570203, China
| | - Zimeng Luo
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Sanya Tropical Fisheries Research Institute, Sanya 570203, China
| |
Collapse
|
2
|
Ronchetti GZ, Simões MR, Schereider IRG, Leal MAS, Peçanha GAW, Padilha AS, Vassallo DV. Oxidative Stress Induced by 30 Days of Mercury Exposure Accelerates Hypertension Development in Prehypertensive Young SHRs. Cardiovasc Toxicol 2022; 22:929-939. [DOI: 10.1007/s12012-022-09769-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 10/20/2022] [Indexed: 11/16/2022]
|
3
|
Schereider IRG, Vassallo DV, Simões MR. Chronic mercury exposure induces oxidative stress in female rats by endothelial nitric oxide synthase uncoupling and cyclooxygenase-2 activation, without affecting oestrogen receptor function. Basic Clin Pharmacol Toxicol 2021; 129:470-485. [PMID: 34491608 DOI: 10.1111/bcpt.13655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 08/04/2021] [Accepted: 09/02/2021] [Indexed: 11/29/2022]
Abstract
Mercury has been shown to be a significant health risk factor and is positively associated with cardiovascular diseases. Evidence reveals that men are more likely to develop cardiovascular diseases than women during reproductive age. However, the effects of mercury in females remain poorly investigated, despite the finding that female hormones demonstrate a cardioprotective role. In the present study, we evaluated whether chronic mercury chloride exposure could alter blood pressure and vascular function of the female rat aorta. Ten-week-old female Wistar rats were divided into two groups: control (vehicle) and mercury treated (first dose of 4.6 μg/kg, subsequent daily doses of 0.07 μg/kg), im. Mercury treatment did not modify systolic blood pressure (SBP) but increased vascular reactivity due to the reduction of nitric oxide bioavailability associated with the increase in reactive oxygen species from endothelial nitric oxide synthase (eNOS) uncoupling. Furthermore, increased participation of the cyclooxygenase-2 pathway occurred through an imbalance in thromboxane 2 and prostacyclin 2. However, the oestrogen signalling pathway was not altered in either group. These results demonstrated that chronic exposure to mercury in females induced endothelial dysfunction and, consequently, increased aortic vascular reactivity, causing vascular damage to the female rat aorta and representing a risk of cardiovascular diseases.
Collapse
Affiliation(s)
| | - Dalton Valentim Vassallo
- Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil.,Health Science Center of Vitória, School of Sciences of Santa Casa de Misericórdia de Vitória - EMESCAM, Vitória, Espírito Santo, Brazil
| | - Maylla Ronacher Simões
- Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| |
Collapse
|
4
|
Mercury Poisoning Presenting With Hypertension: Report of 2 Cases. Am J Med 2019; 132:1475-1477. [PMID: 31051143 DOI: 10.1016/j.amjmed.2019.03.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 03/27/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Mercury poisoning can cause damage to multiple organs. Secondary hypertension, which is usually misdiagnosed and mistreated, has been rarely reported in cases of mercury poisoning. METHODS We herein present 2 cases of hypertension as the main manifestation of mercury poisoning. RESULTS Case 1 involved a 42-year-old man with blood pressure of 230/190 mm Hg and urinary mercury level of 131.54 μmol/molCr. The patient had been repeatedly exposed to mercury at his workplace and had been admitted to our department many times. His hypertension quickly normalized after every chelation treatment. Case 2 involved a 10-year-old girl with hypertension (150/110 mm Hg), rash, and convulsions. She was found to have elevated blood levels of renin, angiotensin II, and aldosterone as well as an elevated urinary mercury level. Her hypertension recovered soon after chelation treatment. CONCLUSIONS Mercury poisoning can cause secondary hypertension as the main clinical manifestation or together with multiorgan damage. Renin-angiotensin system activation may be involved in the occurrence and development of hypertension.
Collapse
|
5
|
Protective role of quercetinum in mercury exposure cardiotoxity. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2019. [DOI: 10.2478/cipms-2019-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
The article describes the remediation of myocardium structure characteristics provided by Quercetinum under the influence of 0.01 LD50 mercury chloride (II) in rats at chronic exposure. Ultrastructural and metabolic reorganization of myocardium tissue was studied by electron microscopic and histochemical techniques. Quercetinum reduces energy imbalance in the myocardium, shows membrane-stabilizing activity, and promotes stabilization and normalization of the function of membranes by direct biochemical interaction of the membrane organelles of the body’s cells.
Collapse
|
6
|
Insights on alpha lipoic and dihydrolipoic acids as promising scavengers of oxidative stress and possible chelators in mercury toxicology. J Inorg Biochem 2019; 195:111-119. [DOI: 10.1016/j.jinorgbio.2019.03.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 12/11/2022]
|
7
|
Rizzetti DA, Corrales P, Piagette JT, Uranga-Ocio JA, Medina-Gomez G, Peçanha FM, Vassallo DV, Miguel M, Wiggers GA. Chronic mercury at low doses impairs white adipose tissue plasticity. Toxicology 2019; 418:41-50. [PMID: 30807803 DOI: 10.1016/j.tox.2019.02.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/31/2019] [Accepted: 02/23/2019] [Indexed: 02/07/2023]
Abstract
INTRODUCTION The toxic effects of mercury (Hg) are involved in homeostasis of energy systems such as lipid and glucose metabolism, and white adipose tissue dysfunction is considered as a central mechanism leading to metabolic disorders. OBJECTIVE The aim of this study was to determine the effects of chronic inorganic Hg exposure at low doses on the lipid and glycemic metabolism. METHODS Male Wistar rats were divided into two groups and treated for 60 days with: saline solution, i.m. (Untreated) and mercury chloride, i.m. - 1st dose 4.6 μg/kg, subsequent doses 0.07 μg/kg/day - (Mercury). Histological analyses, Hg levels measurement and GRP78, CHOP, PPARα, PPARγ, leptin, adiponectin and CD11 mRNA expressions were performed in epididymal white adipose tissue (eWAT). Glucose, triglycerides, total cholesterol and insulin plasma levels were also measured. RESULTS Hg exposure reduced the absolute and relative eWAT weights, adipocyte size, plasma insulin levels, glucose tolerance, antioxidant defenses and increased plasma glucose and triglyceride levels. In addition, CHOP, GRP78, PPARα, PPARγ, leptin and adiponectin mRNA expressions were increased in Hg-treated animals. No differences in Hg concentration were found in eWAT between the untreated and Hg groups. These results suggest that the reduction in adipocyte size is related to the impaired antioxidant defenses, endoplasmic reticulum (ER) stress, the disrupted PPARs and adipokines mRNA expression induced by the metal in eWAT. These disturbances possibly induced a decrease in circulating insulin levels, an imbalance between lipolysis and lipogenesis mechanisms in eWAT, with an increase in fatty acids mobilization, a reduction in glucose uptake and an activation of pro-apoptotic pathways, leading to hyperglycemia and hyperlipidemia. CONCLUSIONS Hg is a powerful environmental WAT disruptor that influences signaling events and impairs metabolic activity and hormonal balance of adipocytes.
Collapse
Affiliation(s)
- Danize Aparecida Rizzetti
- Cardiovascular Physiology Laboratory, Universidade Federal do Pampa, BR 472, Km 592, Uruguaiana, Rio Grande do Sul, Brazil; Polytechnic School, Federal University of Santa Maria, Av. Roraima, n° 1000, Santa Maria, Rio Grande do Sul, Brazil.
| | - Patricia Corrales
- Department of Basic Health Sciences, Universidad Rey Juan Carlos, Antenas s/n, Alcorcón, Spain.
| | - Janaina Trindade Piagette
- Cardiovascular Physiology Laboratory, Universidade Federal do Pampa, BR 472, Km 592, Uruguaiana, Rio Grande do Sul, Brazil.
| | | | - Gema Medina-Gomez
- Department of Basic Health Sciences, Universidad Rey Juan Carlos, Antenas s/n, Alcorcón, Spain.
| | - Franck Maciel Peçanha
- Cardiovascular Physiology Laboratory, Universidade Federal do Pampa, BR 472, Km 592, Uruguaiana, Rio Grande do Sul, Brazil.
| | - Dalton Valentim Vassallo
- Cardiac Electromechanical and Vascular Reactivity Laboratory, Universidade Federal do Espírito Santo, Marechal Campos, 1468, Vitória, Espírito Santo, Brazil.
| | - Marta Miguel
- Bioactivity and Food Analysis Laboratory, Instituto de Investigación en Ciencias de la Alimentación, Nicolás Cabrera, 9, Campus Universitario de Cantoblanco, Madrid, Spain.
| | - Giulia Alessandra Wiggers
- Cardiovascular Physiology Laboratory, Universidade Federal do Pampa, BR 472, Km 592, Uruguaiana, Rio Grande do Sul, Brazil.
| |
Collapse
|
8
|
No answer to the lack of specificity: mouse monoclonal antibody targeting the angiotensin II type 1 receptor AT 1 fails to recognize its target. Naunyn Schmiedebergs Arch Pharmacol 2018; 391:883-889. [PMID: 29868927 DOI: 10.1007/s00210-018-1522-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 05/28/2018] [Indexed: 12/12/2022]
Abstract
Numerous antibodies targeting G protein-coupled receptors (GPCRs) have been described as non-specific among the polyclonal antibodies against angiotensin II type 1 receptor (AT1). We have tested the newly developed AT1 receptor mouse monoclonal antibody for its specificity. Human embryonic kidney (HEK293) cells, which do not endogenously express AT1 receptor, were transfected in order to overexpress a fluorescently labeled enhanced green fluorescent protein (EGFP)-tagged human AT1 receptor. Western blot and immunofluorescence assays were performed to test the specificity of the Santa Cruz monoclonal antibody sc-57036. These results were compared to the ones obtained with the polyclonal sc-1173 anti-AT1 receptor antibodies that have already been described as non-specific. While the positive controls using GFP antibodies detected the EGFP-tagged AT1 receptor, both polyclonal and monoclonal anti-AT1 receptor antibodies failed to specifically recognize the corresponding band by Western blot, as similar bands were revealed in either transfected or non-transfected cells. It also failed to detect AT1 receptor in immunofluorescence experiments. The lack of target recognition of the monoclonal AT1 receptor antibody in our experimental conditions suggests that this antibody could give misleading results such as misidentification of the protein. To our knowledge, no specific antibodies targeting AT1 receptors have been developed so far and the field is thus in need of new technical developments.
Collapse
|