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Xu Q, Liu Z, Chen Y, Qin L, Zhao M, Tang W, Chen S, Zhang Y, Zhong Q. Serum metabolic changes link metal mixture exposures to vascular endothelial inflammation in residents living surrounding rivers near abandoned lead-zinc mines. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 358:124493. [PMID: 38960116 DOI: 10.1016/j.envpol.2024.124493] [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: 02/20/2024] [Revised: 06/29/2024] [Accepted: 07/01/2024] [Indexed: 07/05/2024]
Abstract
Metal exposure is associated with vascular endothelial inflammation, an early pathological phenotype of atherosclerotic cardiovascular events. However, the underlying mechanism linking exposure, metabolic changes, and outcomes remains unclear. We aimed to investigate the metabolic changes underlying the associations of chronic exposure to metal mixtures with vascular endothelial inflammation. We recruited 960 adults aged 20-75 years from residential areas surrounding rivers near abandoned lead-zinc mine and classified them into river area and non-river area exposure groups. Urine levels of 25 metals, Framingham risk score (FRS), and serum concentrations of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1), as biomarkers of vascular endothelial inflammation, were assessed. A "meet-in-the-middle" approach was applied to identify causal intermediate metabolites and metabolic pathways linking metal exposure to vascular endothelial inflammation in representative metabolic samples from 64 participants. Compared to the non-river area exposure group, the river area exposure group had significantly greater urine concentrations of chromium, copper, cadmium, and lead; lower urine concentrations of selenium; elevated FRS; and increased concentrations of ICAM-1 and VCAM-1. In total, 38 differentially abundant metabolites were identified between the river area and non-river area exposure groups. Among them, 25 metabolites were significantly associated with FRS, 8 metabolites with ICAM-1 expression, and 10 metabolites with VCAM-1 expression. Furthermore, fructose, ornithine, alpha-ketoglutaric acid, urea, and cytidine monophosphate, are potential mediators of the relationship between metal exposure and vascular endothelial inflammation. Additionally, the metabolic changes underlying these effects included changes in arginine and proline metabolism, pyrimidine metabolism, starch and sucrose metabolism, galactose metabolism, arginine biosynthesis, and alanine, aspartate, and glutamate metabolism, suggesting the disturbance of amino acid metabolism, the tricarboxylic acid cycle, nucleotide metabolism, and glycolysis. Overall, our results reveal biomechanisms that may link chronic exposure to multiple metals with vascular endothelial inflammation and elevated cardiovascular risk.
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Affiliation(s)
- Qi Xu
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China; School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi 341000, China
| | - Zhongdian Liu
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Yijing Chen
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Lingqiao Qin
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Min Zhao
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Weiting Tang
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Shuping Chen
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Yifan Zhang
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Qiuan Zhong
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, Guangxi 530021, China.
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Haidar Z, Fatema K, Shoily SS, Sajib AA. Disease-associated metabolic pathways affected by heavy metals and metalloid. Toxicol Rep 2023; 10:554-570. [PMID: 37396849 PMCID: PMC10313886 DOI: 10.1016/j.toxrep.2023.04.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 03/21/2023] [Accepted: 04/23/2023] [Indexed: 07/04/2023] Open
Abstract
Increased exposure to environmental heavy metals and metalloids and their associated toxicities has become a major threat to human health. Hence, the association of these metals and metalloids with chronic, age-related metabolic disorders has gained much interest. The underlying molecular mechanisms that mediate these effects are often complex and incompletely understood. In this review, we summarize the currently known disease-associated metabolic and signaling pathways that are altered following different heavy metals and metalloids exposure, alongside a brief summary of the mechanisms of their impacts. The main focus of this study is to explore how these affected pathways are associated with chronic multifactorial diseases including diabetes, cardiovascular diseases, cancer, neurodegeneration, inflammation, and allergic responses upon exposure to arsenic (As), cadmium (Cd), chromium (Cr), iron (Fe), mercury (Hg), nickel (Ni), and vanadium (V). Although there is considerable overlap among the different heavy metals and metalloids-affected cellular pathways, these affect distinct metabolic pathways as well. The common pathways may be explored further to find common targets for treatment of the associated pathologic conditions.
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Fagerberg B, Barregard L. Review of cadmium exposure and smoking-independent effects on atherosclerotic cardiovascular disease in the general population. J Intern Med 2021; 290:1153-1179. [PMID: 34157165 DOI: 10.1111/joim.13350] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Exposure to cadmium (Cd) via food and smoking is associated with an increased risk of atherosclerotic cardiovascular disease (ASCVD). Blood and urine levels of Cd are established biomarkers of exposure. OBJECTIVES To review (1) the smoking-independent associations between Cd exposure and ASCVD, including the possible presence of a nonlinear dose-response relationship with Cd exposure and (2) the causal effects of Cd exposure on different stages of atherosclerosis. METHODS Narrative review. RESULTS Cd confers increased risk of ASCVD and asymptomatic atherosclerosis in the carotid and coronary arteries above B-Cd >0.5 μg/L or U-Cd >0.5 μg/g creatinine, but it has not been shown below a threshold of these exposure levels. Adjustment for smoking does not exclude the possibility of residual confounding, but several studies in never-smoking cohorts have shown associations between Cd and ASCVD, and experimental studies have demonstrated pro-atherosclerotic effects of Cd. Cd accumulates in arterial walls and atherosclerotic plaques, reaching levels shown to have proatherosclerotic effects. Suggested early effects are increased subendothelial retention of atherogenic lipoproteins, which become oxidized, and endothelial dysfunction and damage with increased permeability for monocytes, which in the intima turn to macrophages and then to foam cells. Later, Cd may contribute to plaque rupture and erosion by endothelial apoptosis and degradation of the fibrous cap. Finally, by having prothrombotic and antifibrinolytic effects, the CVD risk may be further increased. CONCLUSIONS There is strong evidence that Cd causes ASCVD above a suggested exposure level via mechanisms in early as well as the late stages of atherosclerotic disease.
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Affiliation(s)
- Björn Fagerberg
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lars Barregard
- Occupational and Environmental Medicine, Department of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg and Sahlgrenska University Hospital, Gothenburg, Sweden
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El-Kott AF, Alshehri AS, Khalifa HS, Abd-Lateif AEKM, Alshehri MA, El-Maksoud MMA, Eid RA, Bin-Meferij MM. Cadmium Chloride Induces Memory Deficits and Hippocampal Damage by Activating the JNK/p 66Shc/NADPH Oxidase Axis. Int J Toxicol 2020; 39:477-490. [PMID: 32856499 DOI: 10.1177/1091581820930651] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study investigated whether the mechanism underlying the neurotoxic effects of cadmium chloride (CdCl2) in rats involves p66Shc. This study comprised an initial in vivo experiment followed by an in vitro experiment. For the in vivo experiment, male rats were orally administered saline (vehicle) or CdCl2 (0.05 mg/kg) for 30 days. Thereafter, spatial and retention memory of rats were tested and their hippocampi were used for biochemical and molecular analyses. For the in vitro experiment, control or p66Shc-deficient hippocampal cells were treated with CdCl2 (25 µM) in the presence or absence of SP600125, a c-Jun N-terminal kinase (JNK) inhibitor. Cadmium chloride impaired the spatial learning and retention memory of rats; depleted levels of glutathione and manganese superoxide dismutase; increased reactive oxygen species (ROS), tumor necrosis factor α, and interleukin 6; and induced nuclear factor kappa B activation. Cadmium chloride also decreased the number of pyramidal cells in the CA1 region and induced severe damage to the mitochondria and endoplasmic reticulum of cells in the hippocampi of rats. Moreover, CdCl2 increased the total unphosphorylated p66Shc, phosphorylated (Ser36) p66Shc, phosphorylated JNK, nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, cytochrome c, and cleaved caspase-3. A dose-response increase in cell death, ROS, DNA damage, p66Shc, and NADPH oxidase was also observed in cultured hippocampal cells treated with CdCl2. Of note, all of these biochemical changes were attenuated by silencing p66Shc or inhibiting JNK with SP600125. In conclusion, CdCl2 induces hippocampal ROS generation and apoptosis by promoting the JNK-mediated activation of p66Shc.
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Affiliation(s)
- Attalla Farag El-Kott
- Biology Department, College of Science, 204574King Khalid University, Abha, Saudi Arabia.,Zoology Department, College of Science, 110144Damanhour University, Damanhour, Egypt
| | - Ali S Alshehri
- Biology Department, College of Science, 204574King Khalid University, Abha, Saudi Arabia
| | - Heba S Khalifa
- Zoology Department, College of Science, 110144Damanhour University, Damanhour, Egypt
| | | | - Mohammad Ali Alshehri
- Biology Department, College of Science, 204574King Khalid University, Abha, Saudi Arabia
| | - Mona M Abd El-Maksoud
- Community of Nursing Care, Nursing College, 204574King Khalid University, Abha, Saudi Arabia.,Community Health Nursing, Faculty of Nursing, Helwan University, Helwan, Egypt
| | - Refaat A Eid
- Department of Pathology, College of Medicine, 204574King Khalid University, Abha, Saudi Arabia
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Lv B, Wang J, Peng Y, Wang Z, Song Q. Long-term cadmium exposure affects cell adhesion and expression of cadherin in the male genital organ of Pardosa pseudoannulata (Bösenberg & Strand, 1906). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:17770-17778. [PMID: 32162219 DOI: 10.1007/s11356-020-07968-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 02/02/2020] [Indexed: 06/10/2023]
Abstract
Pardosa pseudoannulata (Araneae: Lycosidae), as an important predator of crop pests, has served as a strong driver for ecological regulation of pests. Cadmium (Cd) is a toxic heavy metal widely distributed in the soil in China, which not only seriously pollutes the ecological environment, but also poses a great threat to the survival of organisms. Palpal bulbs are the genital organs of male spiders, playing an important role in reproductive physiology. However, the effects of long-term Cd stress on the genital organ of the primary pest predator were poorly understood. Therefore, we investigated the Cd effect on the male palpal organ of P. pseudoannulata at morphological and gene expression levels. The results showed that no obvious difference in the morphology between the Cd-treated and control groups was observed, but cell adhesion was affected at molecular level. Transcriptome sequencing analysis revealed that under long-term Cd stress, the biological processes including cell-cell adhesion via plasma-membrane adhesion molecules, cell-cell adhesion, and homophilic cell adhesion via plasma membrane adhesion molecules were the top three differentially expressed terms (p-adj < 0.001), and 51 unigenes were annotated into cadherin-related proteins, such as protocadherin, cadherin-87A, and cadherin-96Ca, among which, 18 unigenes were significantly upregulated under the Cd stress. Our outcomes indicate that the differentially expressed genes involved in cell adhesion may explain the negative effects of Cd stress on the spider genital organ, and the comprehensive transcriptome dataset will also provide a profound molecular information of the genital organ of P. pseudoannulata.
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Affiliation(s)
- Bo Lv
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Juan Wang
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Yuande Peng
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Zhi Wang
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China.
| | - Qisheng Song
- Division of Plant Sciences, University of Missouri, Columbia, MO, 65211, USA
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Zavala-Tecuapetla C, Orozco-Suarez S, Manjarrez J, Cuellar-Herrera M, Vega-Garcia A, Buzoianu-Anguiano V. Activation of adenosine receptors modulates the efflux transporters in brain capillaries and restores the anticonvulsant effect of carbamazepine in carbamazepine resistant rats developed by window-pentylenetetrazole kindling. Brain Res 2019; 1726:146516. [PMID: 31634453 DOI: 10.1016/j.brainres.2019.146516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 10/15/2019] [Accepted: 10/17/2019] [Indexed: 01/14/2023]
Abstract
Up-regulation of efflux transporters in brain capillaries may lead to the decreased therapeutic efficacy of antiepileptic drugs in patients with Drug Resistant Epilepsy. Adenosine receptor activation in brain capillaries can modulate blood-brain barrier permeability by decreasing the protein levels and function of efflux transporters. Therefore, we aimed to investigate whether the activation of adenosine receptors improves convulsions outcome in carbamazepine (CBZ) resistant animals and modulates the protein levels of efflux transporters (P-GP, MRP1, MRP2) in brain capillaries. We employed the window-pentylenetetrazol (PTZ) kindling model to develop CBZ resistant rats by CBZ administration during the post-kindling phase, and tested if these animals displayed subsequent resistance to other antiepileptic drugs. Crucially, we investigated if the administration of a broad-spectrum adenosine agonist (NECA) improves convulsions control in CBZ resistant rats. Of potential therapeutic relevance, in CBZ resistant rats NECA restored the anticonvulsant effect of CBZ. We also evaluated how the resistance to CBZ and the activation of adenosine receptors with NECA affect protein levels of efflux transporters in brain capillaries, as quantified by western blot. While CBZ resistance was associated with the up-regulation of both P-GP/MRP2 in brain capillaries, with the administration of NECA in CBZ resistant rats, we observed a decrease of P-GP and an increase of MRP2 levels, in brain capillaries. Since the activation of adenosine receptors improves the outcome of convulsions probably through the modulation of the efflux transporters protein levels in brain capillaries, adenosine agonists could be useful as an adjunct therapy for the control of Drug Resistant Epilepsy.
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Affiliation(s)
- C Zavala-Tecuapetla
- Laboratory of Physiology of Reticular Formation, National Institute of Neurology and Neurosurgery, Insurgentes Sur 3877, La Fama, 14269 Mexico City, Mexico.
| | - S Orozco-Suarez
- Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center XXI Century, IMSS, Cuauhtemoc 330, Doctores, 06720 Mexico City, Mexico
| | - J Manjarrez
- Laboratory of Physiology of Reticular Formation, National Institute of Neurology and Neurosurgery, Insurgentes Sur 3877, La Fama, 14269 Mexico City, Mexico
| | - M Cuellar-Herrera
- Epilepsy Clinic, Hospital General de México, Dr. Eduardo Liceaga, Dr. Balmis 148, Doctores, 06720 Mexico City, Mexico
| | - A Vega-Garcia
- Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center XXI Century, IMSS, Cuauhtemoc 330, Doctores, 06720 Mexico City, Mexico; Department of Physiology, Faculty of Medicine, National Autonomous University of Mexico, Av. Universidad 3000, C.U., 04510 Mexico City, Mexico
| | - V Buzoianu-Anguiano
- Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center XXI Century, IMSS, Cuauhtemoc 330, Doctores, 06720 Mexico City, Mexico
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Fittipaldi S, Bimonte VM, Soricelli A, Aversa A, Lenzi A, Greco EA, Migliaccio S. Cadmium exposure alters steroid receptors and proinflammatory cytokine levels in endothelial cells in vitro: a potential mechanism of endocrine disruptor atherogenic effect. J Endocrinol Invest 2019; 42:727-739. [PMID: 30478740 DOI: 10.1007/s40618-018-0982-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 11/13/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Cadmium (Cd) is a widespread environmental pollutant that causes alterations in human health acting as endocrine disruptor. Recent data suggest that cardiovascular system might be a contamination target tissue, since Cd is found in atheromatic plaques. Thus, the purpose of this study was to evaluate the consequence of Cd exposure of endothelial cells in vitro to evaluate detrimental effect in vascular system by a potential sex-steroid hormone receptor-dependent mechanism(s). METHODS To this aim, Human Umbilical Vein Endothelial Cells (HUVECs) were cultured and exposed to several concentrations of cadmium chloride (CdCl2) for different interval times. RESULTS CdCl2 exposure of HUVECs induced a significant increase of ERβ and Cyp19a1 at both mRNA and protein levels, while a drastic dose-dependent decrease of AR expression level was observed after 24 h of exposure. On the contrary, an increase of PhARser308 as well as a reduction of PhGSK-3βser9 and PhAKTser473 was detected after 1 h treatment. This effect was consistently reduced by GSK inhibition. Furthermore, CdCl2 abolished DHT-induced cell proliferation in HUVECs suggesting an antagonist-like effect of Cd on AR-mediated signaling. Remarkable, after 6 h CdCl2-treatment, a relevant increase in TNF-α, IL-6 and IL-8 mRNA was observed and this effect was blocked by the presence of an ERβ-selective antagonist. Moreover, Cd-induced TxR1 overexpression, likely, correlated with the activation of p38 MAPK/NF-κB pathway. CONCLUSION In conclusion, our study demonstrates for the first time that Cd alters sex-steroid hormone receptors level and activity likely affecting intracellular signaling linked to a proinflammatory state in endothelial cells. This alteration might possibly lead to endothelial cell injury and vascular dysfunction and could be a mechanism of gender-specific atherogenic damages induced by endocrine disruptors and, thus, induce atherogenic events with increased risk of cardiovascular diseases in individuals exposed to this endocrine disruptor.
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Affiliation(s)
| | - V M Bimonte
- Department of Movement, Human and Health Sciences, Section of Health Sciences, "Foro Italico" University of Rome, Largo Lauro De Bosis 6, 00195, Rome, Italy
- Department of Experimental and Clinical Medicine, Magna Græcia University, Catanzaro, Italy
| | - A Soricelli
- IRCCS SDN, Naples, Italy
- Department of Motor Sciences and Healthiness, University of Naples Parthenope, Naples, Italy
| | - A Aversa
- Department of Experimental and Clinical Medicine, Magna Græcia University, Catanzaro, Italy
| | - A Lenzi
- Department of Experimental Medicine, Section of Medical Pathophysiology, Endocrinology and Nutrition, "Sapienza" University of Rome, Rome, Italy
| | - E A Greco
- Department of Experimental Medicine, Section of Medical Pathophysiology, Endocrinology and Nutrition, "Sapienza" University of Rome, Rome, Italy
| | - S Migliaccio
- Department of Movement, Human and Health Sciences, Section of Health Sciences, "Foro Italico" University of Rome, Largo Lauro De Bosis 6, 00195, Rome, Italy.
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Yoon BNR, Lee JB, Jin GH, Kim WY. Serum Cadmium Level Is Positively Associated with Unruptured Intracranial Aneurysm Incidence. Korean J Fam Med 2019; 40:273-277. [PMID: 30727706 PMCID: PMC6669382 DOI: 10.4082/kjfm.17.0140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/01/2018] [Indexed: 01/13/2023] Open
Abstract
Background Cadmium is a toxic element in cigarette smoke associated with ischemic vascular disease. Its association with cerebral aneurysm is unknown. Methods We retrospectively analyzed the medical records of patients with headache who underwent imaging studies between March 2014 and August 2016. An unruptured intracranial aneurysm (UIA) was confirmed by brain magnetic resonance angiography or computed tomography angiography. A control group included age- and sex-matched patients without an UIA. Whole blood and random urine tests were used for detection of cadmium and arsenic levels, respectively. Student t-test was used to compare subject characteristics, mean cadmium and arsenic levels between groups, and differences between groups with small (<4-mm) and large (≥4-mm) UIAs. Multivariate regression analysis was used to identify risk factors for aneurysm incidence. Results Of 238 patients, 25 had an UIA. Those with an UIA had more pack-years of smoking (19.5±3.8 vs. 12.5±6.8, P=0.044) and higher mean serum cadmium levels (1.77±0.19 vs. 0.87±0.21 µg/L, P=0.027). Arsenic levels showed no difference between groups. (67.4±23.5 vs. 62.2±18.3 µg/L, P=0.458). There were no significantly different demographic, clinical, or laboratory characteristics between small and large aneurysm groups. According to multivariate analysis, smoking (odds ratio [OR], 1.48; 95% confidence interval [CI], 1.06–2.33; P=0.047) and serum cadmium >2.0 mcg/L (OR, 1.39; 95% CI, 1.15–1.84; P=0.043) were associated with aneurysm incidence. Conclusion UIA incidence was associated with pack-years of smoking and serum cadmium level, but aneurysm size was not associated with serum cadmium level.
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Affiliation(s)
| | - Jun Beom Lee
- Department of Neurology, Hongik Hospital, Seoul, Korea
| | - Ga Heon Jin
- The Faculty of Beauty Health Sciences, Major in Ophthalmic Optics, Shinhan University, Uijeongbu, Korea
| | - Won Yong Kim
- Department of Family Medicine, Hongik Hospital, Seoul, Korea
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Roh SE, Jeong Y, Kang MH, Bae YS. Junctional adhesion molecules mediate transendothelial migration of dendritic cell vaccine in cancer immunotherapy. Cancer Lett 2018; 434:196-205. [PMID: 30055289 DOI: 10.1016/j.canlet.2018.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/21/2018] [Accepted: 07/21/2018] [Indexed: 12/14/2022]
Abstract
In vitro generated dendritic cells (DCs) have been studied in cancer immunotherapy for decades. However, the detailed molecular mechanism underlying transendothelial migration (TEM) of DC vaccine across the endothelial barrier to regional lymph nodes (LNs) remains largely unknown. Here, we found that junctional adhesion molecule (JAM)-Like (JAML) is involved in the TEM of mouse bone marrow-derived DCs (BMDCs). Treatment with an anti-JAML antibody or JAML knock-down significantly reduced the TEM activity of BMDCs, leading to impairment of DC-based cancer immunotherapy. We found that the interaction of JAML of BMDCs with the coxsackie and adenovirus receptor of endothelial cells plays a crucial role in the TEM of BMDCs. On the other hand, human monocyte-derived DCs (MoDCs) did not express the JAML protein but still showed normal TEM activity. We found that MoDCs express only JAM1 and that the homophilic interaction of JAM1 is essential for MoDC TEM across a HUVEC monolayer. Our findings suggest that specific JAM family members play an important role in the TEM of in vitro-generated mouse and human DCs from the inoculation site to regional LNs in DC-based cancer immunotherapy.
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Affiliation(s)
- Seung-Eon Roh
- Department of Biological Sciences, Science Research Center (SRC) for Immune Research on Non-lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea
| | - Yideul Jeong
- Department of Biological Sciences, Science Research Center (SRC) for Immune Research on Non-lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea
| | - Myeong-Ho Kang
- Department of Biological Sciences, Science Research Center (SRC) for Immune Research on Non-lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea
| | - Yong-Soo Bae
- Department of Biological Sciences, Science Research Center (SRC) for Immune Research on Non-lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea.
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Tinkov AA, Filippini T, Ajsuvakova OP, Skalnaya MG, Aaseth J, Bjørklund G, Gatiatulina ER, Popova EV, Nemereshina ON, Huang PT, Vinceti M, Skalny AV. Cadmium and atherosclerosis: A review of toxicological mechanisms and a meta-analysis of epidemiologic studies. ENVIRONMENTAL RESEARCH 2018; 162:240-260. [PMID: 29358116 DOI: 10.1016/j.envres.2018.01.008] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/05/2018] [Accepted: 01/10/2018] [Indexed: 05/20/2023]
Abstract
Cadmium has been proposed to be the one of the factors of atherosclerosis development, although the existing data are still controversial. The primary objective of the present study is the review and the meta-analysis of studies demonstrating the association between Cd exposure and atherosclerosis as well as review of the potential mechanisms of such association. We performed a systematic search in the PubMed-Medline database using the MeSH terms cadmium, cardiovascular disease, atherosclerosis, coronary artery disease, myocardial infarction, stroke, mortality and humans up through December 20, 2017. Elevated urinary Cd levels were associated with increased mortality for cardiovascular disease (HR = 1.34, 95% CI: 1.07-1.67) as well as elevated blood Cd levels (HR = 1.78, 95% CI: 1.24-2.56). Analysis restricted to never smokers showed similar, though more imprecise, results. Consistently, we also observed an association between Cd exposure markers (blood and urine) and coronary heart disease, stroke, and peripheral artery disease. Moreover, Cd exposure was associated with atherogenic changes in lipid profile. High Cd exposure was associated with higher TC levels (OR = 1.48, 95% CI: 1.10-2.01), higher LDL-C levels (OR = 1.31, 95% CI 0.99-1.73) and lower HDL-C levels (OR = 1.96, 95% CI: 1.09-3.55). The mechanisms of atherogenic effect of cadmium may involve oxidative stress, inflammation, endothelial dysfunction, enhanced lipid synthesis, up-regulation of adhesion molecules, prostanoid dysbalance, as well as altered glycosaminoglycan synthesis.
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Affiliation(s)
- Alexey A Tinkov
- Yaroslavl State University, Yaroslavl, Russia; Peoples' Friendship University of Russia (RUDN University), Moscow, Russia; Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, Orenburg, Russia.
| | - Tommaso Filippini
- CREAGEN, Environmental, Genetic and Nutritional Epidemiology Research Center, University of Modena and Reggio Emilia, Modena, Italy
| | - Olga P Ajsuvakova
- All-Russian Research Institute of Phytopathology, Odintsovo, Moscow Region, Russia
| | | | - Jan Aaseth
- Faculty of Public Health, Inland Norway University of Applied Sciences, Elverum, Norway; Research Department, Innlandet Hospital Trust, Brumunddal, Norway
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine, Mo i Rana, Norway
| | | | - Elizaveta V Popova
- St. Joseph University in Tanzania, St. Joseph College of Health Sciences, Dar es Salaam, Tanzania
| | | | | | - Marco Vinceti
- CREAGEN, Environmental, Genetic and Nutritional Epidemiology Research Center, University of Modena and Reggio Emilia, Modena, Italy
| | - Anatoly V Skalny
- Yaroslavl State University, Yaroslavl, Russia; Peoples' Friendship University of Russia (RUDN University), Moscow, Russia; Orenburg State University, Orenburg, Russia; Trace Element Institute for UNESCO, Lyon, France
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11
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Tang L, Su J, Liang P. Modeling cadmium-induced endothelial toxicity using human pluripotent stem cell-derived endothelial cells. Sci Rep 2017; 7:14811. [PMID: 29093498 PMCID: PMC5665915 DOI: 10.1038/s41598-017-13694-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 09/29/2017] [Indexed: 11/08/2022] Open
Abstract
Cadmium (Cd) is a harmful heavy metal that results in vascular diseases such as atherosclerosis. Prior evidence revealed that Cd induced endothelial cell (EC) death and dysfunction, supporting that ECs are a primary target of Cd-induced toxicity, and can cause severe pathologies of vascular diseases. However, the underlying mechanisms remain unclear. In this study, we investigated the mechanisms of Cd-induced endothelial toxicity in a human model system of H9 human pluripotent stem cell-derived endothelial cells (H9-ECs). We showed that H9-ECs were susceptible to CdCl2 induction, leading to detrimental changes of cell structure and significantly elevated level of apoptosis. We demonstrated that CdCl2-treated H9-ECs gave rise to a clear EC dysfunction phenotype and significantly differential transcriptomic profile. Signaling pathway analysis revealed that P38 or ERK signaling pathway is critical to cadmium-induced EC apoptosis and dysfunction, and inhibition of P38 or ERK effectively rescued CdCl2-induced endothelial toxicity in H9-ECs. Conclusively, hPSC-ECs can be a reliable model to recapitulate the EC pathological features and transcriptomic profile, which may provide a unique platform for understanding the cellular and molecular mechanisms of Cd-induced endothelial toxicity and for identifying therapeutic drugs for Cd-induced vascular diseases.
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Affiliation(s)
- Ling Tang
- Key Laboratory of combined Multi-organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University, 310003, Hangzhou, China
- Institute of Translational Medicine, Zhejiang University, 310029, Hangzhou, China
| | - Jun Su
- Key Laboratory of combined Multi-organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University, 310003, Hangzhou, China
- Institute of Translational Medicine, Zhejiang University, 310029, Hangzhou, China
| | - Ping Liang
- Key Laboratory of combined Multi-organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University, 310003, Hangzhou, China.
- Institute of Translational Medicine, Zhejiang University, 310029, Hangzhou, China.
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12
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Zhong Q, Li X, Nong Q, Mao B, Pan X. Metabolic Profiling in Association with Vascular Endothelial Cell Dysfunction Following Non-Toxic Cadmium Exposure. Int J Mol Sci 2017; 18:ijms18091905. [PMID: 28872622 PMCID: PMC5618554 DOI: 10.3390/ijms18091905] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 09/04/2017] [Accepted: 09/04/2017] [Indexed: 01/04/2023] Open
Abstract
This study aimed to determine the metabolic profile of non-toxic cadmium (Cd)-induced dysfunctional endothelial cells using human umbilical vein endothelial cells (HUVECs). HUVECs (n = 6 per group) were treated with 0, 1, 5, or 10 μM cadmium chloride (CdCl2) for 48 h. Cell phenotypes, including nitric oxide (NO) production, the inflammatory response, and oxidative stress, were evaluated in Cd-exposed and control HUVECs. Cd-exposed and control HUVECs were analysed using gas chromatography time-of-flight/mass spectrometry. Compared to control HUVECs, Cd-exposed HUVECs were dysfunctional, exhibiting decreased NO production, a proinflammatory state, and non-significant oxidative stress. Further metabolic profiling revealed 24 significantly-altered metabolites in the dysfunctional endothelial cells. The significantly-altered metabolites were involved in the impaired tricarboxylic acid (TCA) cycle, activated pyruvate metabolism, up-regulated glucogenic amino acid metabolism, and increased pyrimidine metabolism. The current metabolic findings further suggest that the metabolic changes linked to TCA cycle dysfunction, glycosylation of the hexosamine biosynthesis pathway (HBP), and compensatory responses to genomic instability and energy deficiency may be generally associated with dysfunctional phenotypes, characterized by decreased NO production, a proinflammatory state, and non-significant oxidative stress, in endothelial cells following non-toxic Cd exposure.
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Affiliation(s)
- Qiuan Zhong
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University School of Public Health, Nanning 530021, China.
- Department of Epidemiology, Guangxi Medical University School of Public Health, Nanning 530021, China.
| | - Xiaofei Li
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University School of Public Health, Nanning 530021, China.
| | - Qingjiao Nong
- Department of Epidemiology, Guangxi Medical University School of Public Health, Nanning 530021, China.
| | - Baoyu Mao
- Department of Epidemiology, Guangxi Medical University School of Public Health, Nanning 530021, China.
| | - Xue Pan
- Department of Epidemiology, Guangxi Medical University School of Public Health, Nanning 530021, China.
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Santos-Gallego CG, Jialal I. Cadmium and atherosclerosis: Heavy metal or singing the blues? Atherosclerosis 2016; 249:230-2. [DOI: 10.1016/j.atherosclerosis.2016.01.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 01/26/2016] [Indexed: 12/15/2022]
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14
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Messner B, Türkcan A, Ploner C, Laufer G, Bernhard D. Cadmium overkill: autophagy, apoptosis and necrosis signalling in endothelial cells exposed to cadmium. Cell Mol Life Sci 2016; 73:1699-713. [PMID: 26588916 PMCID: PMC4805700 DOI: 10.1007/s00018-015-2094-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/23/2015] [Accepted: 11/09/2015] [Indexed: 12/31/2022]
Abstract
Apoptosis, necrosis, or autophagy-it is the mode of cell demise that defines the response of surrounding cells and organs. In case of one of the most toxic substances known to date, cadmium (Cd), and despite a large number of studies, the mode of cell death induced is still unclear. As there exists conflicting data as to which cell death mode is induced by Cd both across various cell types and within a single one, we chose to analyse Cd-induced cell death in primary human endothelial cells by investigating all possibilities that a cell faces in undergoing cell death. Our results indicate that Cd-induced death signalling starts with the causation of DNA damage and a cytosolic calcium flux. These two events lead to an apoptosis signalling-related mitochondrial membrane depolarisation and a classical DNA damage response. Simultaneously, autophagy signalling such as ER stress and phagosome formation is initiated. Importantly, we also observed lysosomal membrane permeabilization. It is the integration of all signals that results in DNA degradation and a disruption of the plasma membrane. Our data thus suggest that Cd causes the activation of multiple death signals in parallel. The genotype (for example, p53 positive or negative) as well as other factors may determine the initiation and rate of individual death signals. Differences in the signal mix and speed may explain the differing results recorded as to the Cd-induced mode of cell death thus far. In human endothelial cells it is the sum of most if not all of these signals that determine the mode of Cd-induced cell death: programmed necrosis.
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Affiliation(s)
- Barbara Messner
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, AKH, Level 8 G9.03, Währinger Gürtel 18-20, 1090, Vienna, Austria.
| | - Adrian Türkcan
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, AKH, Level 8 G9.03, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Christian Ploner
- Plastic, Reconstructive and Aesthetic Surgery Innsbruck, Department of Operative Medicine, Innsbruck Medical University, Innsbruck, Austria
| | - Günther Laufer
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, AKH, Level 8 G9.03, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - David Bernhard
- Cardiac Surgery Research Laboratory Innsbruck, University Clinic for Cardiac Surgery, Innsbruck Medical University, Innsbruck, Austria
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15
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Li L, Dong F, Xu D, Du L, Yan S, Hu H, Lobe CG, Yi F, Kapron CM, Liu J. Short-term, low-dose cadmium exposure induces hyperpermeability in human renal glomerular endothelial cells. J Appl Toxicol 2015; 36:257-65. [PMID: 26011702 DOI: 10.1002/jat.3168] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/21/2015] [Accepted: 04/07/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Liqun Li
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital; Shandong University; Jinan Shandong China
| | - Fengyun Dong
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital; Shandong University; Jinan Shandong China
| | - Dongmei Xu
- Department of Nephrology, Shandong Provincial Qianfoshan Hospital; Shandong University; Jinan Shandong China
| | - Linna Du
- Department of Nephrology, Shandong Provincial Qianfoshan Hospital; Shandong University; Jinan Shandong China
| | - Suhua Yan
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital; Shandong University; Jinan Shandong China
| | - Hesheng Hu
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital; Shandong University; Jinan Shandong China
| | | | - Fan Yi
- Department of Pharmacology; Shandong University School of Medicine; Jinan Shandong China
| | - Carolyn M. Kapron
- Department of Biology; Trent University; Peterborough Ontario Canada
| | - Ju Liu
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital; Shandong University; Jinan Shandong China
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16
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Cadmium induces vascular permeability via activation of the p38 MAPK pathway. Biochem Biophys Res Commun 2014; 450:447-52. [DOI: 10.1016/j.bbrc.2014.05.140] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 05/29/2014] [Indexed: 12/17/2022]
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17
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Chmielowska-Bąk J, Deckert J. A common response to common danger? Comparison of animal and plant signaling pathways involved in cadmium sensing. J Cell Commun Signal 2012; 6:191-204. [PMID: 22865263 PMCID: PMC3497896 DOI: 10.1007/s12079-012-0173-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 07/20/2012] [Indexed: 01/14/2023] Open
Abstract
Exposure to cadmium results in disturbances in cell homeostasis in all living organisms. The first response to stress factors, including cadmium, is activation of signal transduction pathways that mobilize cell defense mechanisms. The aim of this review is a comparison between the signaling network triggered by Cd in plants and animals. Despite differences in the structure and physiology of plant and animal cells, their cadmium signal transduction pathways share many common elements. These elements include signaling molecules such as ROS, Ca(2+) and NO, the involvement of phospholipase C, mitogen-activated protein kinase cascades, and activation of transcription factors. Undoubtedly, both animals and plants also possess specific signaling pathways. In case of animals, Wnt/β-catenin, sonic hedgehog and oestorgen signaling are engaged in the transduction of cadmium signal. Plant specific signal transduction pathways include signaling mediated by plant hormones. The role of ethylene and jasmonic, salicylic and abscisic acid in plant response to cadmium is also discussed.
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Affiliation(s)
- Jagna Chmielowska-Bąk
- Department of Plant Ecophysiology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, ul.Umultowska 89, 61-614, Poznań, Poland,
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18
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Knoflach M, Messner B, Shen YH, Frotschnig S, Liu G, Pfaller K, Wang X, Matosevic B, Willeit J, Kiechl S, Laufer G, Bernhard D. Non-toxic cadmium concentrations induce vascular inflammation and promote atherosclerosis. Circ J 2011; 75:2491-5. [PMID: 21799275 DOI: 10.1253/circj.cj-11-0196] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Cadmium is a potential new risk factor for early atherosclerosis and cardiovascular diseases in humans, yet pathogenetic mechanisms are still a matter of debate. METHODS AND RESULTS In-depth histological analysis of 18 sections taken from 6 cadmium-fed ApoE-/- mice and 12 sections from 5 litter-mates not exposed to cadmium by light and scanning electron microscopy was performed. Cadmium-fed mice showed a marked increase in lesion load (plaque area) and severity as classified according to the American Heart Association vascular lesion grading. All inflammatory markers studied (CD68, CD3, CD25, vascular cell adhesion molecule 1 (VCAM-1), and heat shock protein 60 (Hsp60)) yielded a higher expression in cadmium-fed mice. Statistical difference was achieved for VCAM-1 and Hsp60 (P=0.03 and P=0.02). The shoulder region of atherosclerotic plaques in cadmium-fed mice showed a prominent retraction of endothelial cells on electron microscopy. CONCLUSIONS Our data indicate that cadmium exposure amplifies the development of vessel pathology in atherosclerosis susceptible ApoE-/- mice and suggests upregulation of VCAM-1 and Hsp60 and endothelial leakage as potential pathomechanisms.
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Affiliation(s)
- Michael Knoflach
- Department of Neurology, Innsbruck Medical University, Innsbruck, Austria.
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Ronco AM, Montenegro M, Castillo P, Urrutia M, Saez D, Hirsch S, Zepeda R, Llanos MN. Maternal exposure to cadmium during gestation perturbs the vascular system of the adult rat offspring. Toxicol Appl Pharmacol 2011; 251:137-45. [DOI: 10.1016/j.taap.2011.01.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2010] [Revised: 12/30/2010] [Accepted: 01/04/2011] [Indexed: 01/21/2023]
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20
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Mantha M, Jumarie C. Cadmium-induced hormetic effect in differentiated Caco-2 cells: ERK and p38 activation without cell proliferation stimulation. J Cell Physiol 2010; 224:250-61. [PMID: 20232314 DOI: 10.1002/jcp.22128] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cadmium (Cd) is a toxic metal that enters the food chain. Following oral ingestion, the intestinal epithelium may in part protect against Cd toxicity but is also a target tissue. Using human enterocytic-like Caco-2 cells, we have previously shown differences in sensitivity to Cd according to the differentiation status. The present study focuses on Cd effects on differentiated cells. Concentration and time-dependent increases in MTT (3-[4,5-dimethyl-2-thiazol-2-yl]-2,5-diphenyltetrazolium bromide assay) activity were observed in post-confluent cultures exclusively, with a twofold maximal stimulation in 21-day-old cells exposed to 10 microM Cd for 24 h. No concomitant increase in [methyl-(3)H] thymidine incorporation was noted and Cd did not modify cell distribution in the cell-cycle phases. However, Cd-induced increase in MTT activity was inhibited by cycloheximine as well as by inhibitors of ERK1/2 and p38, but not by that of JNK. Consistently, Cd increased the levels of ERK1/2 and p38 phosphorylation. Inhibition of Ras-GTP or PI3K enhanced the stimulatory effect of Cd, whereas mTOR inhibition had no effect. Inhibition of G protein-phospholipase and PKC decreased MTT stimulation. These results show a hormesis-like stimulation of Cd on MTT activity in differentiated intestinal cells exclusively. This effect is not related to cell proliferation but more likely to increased protein synthesis which involves ERK1/2 and p38 cascades and possibly PLC-beta signaling pathways. Because growth-related differentiation of intestinal cells is linked to the selective and sequential activation of MAPKs, the impacts that these Cd-induced perturbations in signaling pathways may have on intestinal functions clearly deserve to be investigated.
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Affiliation(s)
- Marc Mantha
- Département des Sciences Biologiques, Centre TOXEN, Université du Québec à Montréal, Montréal, Québec, Canada
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21
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Messner B, Bernhard D. Cadmium and cardiovascular diseases: cell biology, pathophysiology, and epidemiological relevance. Biometals 2010; 23:811-22. [PMID: 20213268 DOI: 10.1007/s10534-010-9314-4] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Accepted: 02/17/2010] [Indexed: 10/19/2022]
Abstract
Today cardiovascular diseases (CVDs) are the killer number one world wide. In 2004 an estimated 17.1 million people died due to CVDs and this number will further increase to an estimated 23.6 million by 2030. Importantly, currently known risk factors, like hypertension, and hypercholesterolemia, can only be made responsible for about 50-75% of all CVDs, highlighting the urgent need to search for and define new CVD risk factors. Cadmium (Cd) was shown to have the potential to serve as one such novel risk factor, as it was demonstrated-in vitro, in animal studies, and in human studies-that Cd causes atherosclerosis (the basis of most CVDs). Herein, we discuss the molecular and cellular biological effects of Cd in the cardiovascular system; we present concepts on the pathophysiology of Cd-caused atherosclerosis, and provide data that indicate an epidemiological relevance of Cd as a risk factor for CVDs.
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Affiliation(s)
- Barbara Messner
- Cardiothoracic Surgery, Research Laboratories, Department of Surgery, Medical University of Vienna, Währinger Gürtel 18-20, Vienna, Austria
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