1
|
Degli Esposti D, Lalouette A, Gaget K, Lepeule L, Chaabi Z, Leprêtre M, Espeyte A, Delorme N, Quéau H, Garnero L, Calevro F, Chaumot A, Geffard O. Identification and organ-specific patterns of expression of two metallothioneins in the sentinel species Gammarus fossarum. Comp Biochem Physiol B Biochem Mol Biol 2024; 269:110907. [PMID: 37827361 DOI: 10.1016/j.cbpb.2023.110907] [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: 09/06/2023] [Revised: 10/05/2023] [Accepted: 10/08/2023] [Indexed: 10/14/2023]
Abstract
Metal pollution is a major concern for aquatic environments. Widespread contamination by various trace metal ions has been described in freshwater streams as well as their subsequent bioaccumulation, potentially leading to toxicity and trophic transfer. Metallothioneins constitute an evolutionary conserved family of low molecular weight, cysteine-rich, metal-chelating proteins, whose known physiological functions are the maintenance of the homeostasis of essential metals, the detoxification of non-essential metals, and the protection against oxidative stress and free radicals. In this study, we identified two metallothionein-coding transcripts, mt1 and mt2, in the transcriptome of the amphipod Gammarus fossarum, a sentinel species widely used to assess the quality of watersheds. For the first time, we investigated the organ-specific patterns of expression of these two mt transcripts at the individual level in the gills and the caeca of this small crustacean. In silico analysis and experimental exposures to environmentally relevant concentrations of cadmium, zinc and silver showed that G. fossarum mt1 induction is stronger after Cd exposure compared to the other tested metals. G. fossarum mt1 was more significantly induced in the caeca than in the gills of exposed organisms for any metal exposure, while G. fossarum mt2 was, at least at the individual level, more inducible in the gills than in the caeca of G. fossarum exposed to Cd and Zn. Our results provide new genetic resources that will help to improve the understanding of metal homeostasis in this sentinel species.
Collapse
Affiliation(s)
- Davide Degli Esposti
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France.
| | - Auréline Lalouette
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Karen Gaget
- INRAE, INSA Lyon, BF2I, UMR 203, Université de Lyon, 69621 Villeurbanne, France
| | - Louveline Lepeule
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Zineb Chaabi
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Maxime Leprêtre
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Anabelle Espeyte
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Nicolas Delorme
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Hervé Quéau
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Laura Garnero
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Federica Calevro
- INRAE, INSA Lyon, BF2I, UMR 203, Université de Lyon, 69621 Villeurbanne, France
| | - Arnaud Chaumot
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| | - Olivier Geffard
- INRAE, UR RiverLy, Ecotoxicology Team. Centre de Lyon-Grenoble Auvergne Rhône-Alpes, 5 rue de la Doua CS 20244, 69625 Villeurbanne, France
| |
Collapse
|
2
|
Dong X, Ding A, Hu H, Xu F, Liu L, Wu M. Placental Barrier on Cadmium Transfer from Mother to Fetus in Related to Pregnancy Complications. Int J Womens Health 2023; 15:179-190. [PMID: 36798790 PMCID: PMC9926993 DOI: 10.2147/ijwh.s393067] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/18/2023] [Indexed: 02/11/2023] Open
Abstract
Purpose As two of the most severe and common medical disorders during pregnancy, gestational diabetes mellitus (GDM) and hypertensive disorder complicating pregnancy (HDCP) cause adverse effects on placental barrier function and thus may lead to a high risk of intrauterine exposure to toxic metals from mother to fetus. This study investigates the impact of the placental barrier on the transfer of cadmium (Cd) from mother to fetus and the relationship between pregnancy complications. Methods A total of 107 pairs of samples were collected in Kunming, China; 29 were from healthy pregnant women, and 78 were from patients with pregnancy complications. Cd was measured in each mother's placenta and maternal and umbilical cord blood. The expressions of MT and Cd-MT complex in blood and placental tissue samples were determined by enzyme-linked immunosorbent assay (ELISA). Results The cesarean section rate in the whole pathological group (60.7%) was higher than that in the normal group (20.7%), and the ratio of the effective barrier (ratio of maternal blood to umbilical cord blood>1) in the pathological group (74%) was lower than that in the normal group (79%). In addition, the proportion of practical placental barriers in women aged 20-25 years was 83.3%, 76.3% in women aged 26-30 years, 74.3% in women aged 31-35 years, 70% in women aged 36-40 years, and 71% in women aged 40-45 years. The Cd content in the placenta of the three pathological groups was significantly higher than that in maternal and umbilical cord blood (P<0.05), and the distribution of Cd was the same as that in the normal group. However, there was no significant difference between maternal and umbilical cord blood Cd concentrations in the pathological group. The Cd concentration in the normal group's maternal blood was significantly higher than that in cord blood (P<0.05). In addition, the expression levels of both metallothionein (MT) and Cd-MT complex in placenta is much higher than in maternal and umbilical blood, and which in normal group are significantly higher than those in pathological group. Conclusion Both mothers and fetuses are at increased health risk for pregnancy disorders when maternal age, BMI, or body weight increases. Increased maternal age increases the likelihood of Cd transfer from the mother to the fetus. Pregnancy complications may induce lower expression of MT, thus reducing the Cd-MT complex in the placenta, weakening the placental barrier, and increasing the risk of Cd transfer and exposure to the fetus.
Collapse
Affiliation(s)
- Xudong Dong
- The Obstetrical Department of the First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650500, People’s Republic of China,Faculty of Life Science and Technology, Kunming University of Science & Technology, Kunming, 650500, People’s Republic of China
| | - Ailing Ding
- Faculty of Life Science and Technology, Kunming University of Science & Technology, Kunming, 650500, People’s Republic of China
| | - Hong Hu
- The Obstetrical Department of the First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650500, People’s Republic of China
| | - Fanping Xu
- The Obstetrical Department of the First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650500, People’s Republic of China
| | - Lingyan Liu
- The Obstetrical Department of the First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650500, People’s Republic of China
| | - Min Wu
- The Obstetrical Department of the First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650500, People’s Republic of China,Yunnan Provincial Key Laboratory of Carbon Sequestration and Pollution Control in Soils, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, People’s Republic of China,Correspondence: Min Wu, Email
| |
Collapse
|
3
|
Ogushi S, Nakanishi T, Kimura T. Cadmium inhibits differentiation of human trophoblast stem cells into extravillous trophoblasts and disrupts epigenetic changes within the promoter region of the HLA-G gene. Toxicol Sci 2023; 191:25-33. [PMID: 36370079 DOI: 10.1093/toxsci/kfac118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Cadmium (Cd) is a toxic heavy metal widely distributed in the environment. Maternal whole-blood Cd levels during pregnancy are positively associated with the risk of early preterm birth. We hypothesized that Cd inhibits trophoblast differentiation, resulting in the development of hypertensive disorders of pregnancy and a high risk of early preterm birth. Using the CT27 human trophoblast stem cell line, we found that exposing these cells to 0.1-0.4 µM Cd inhibited their differentiation into extravillous cytotrophoblasts (EVTs). Supporting this finding, we found that expression of the metal-binding protein metallothionein, which suppresses the toxicity of Cd, is low in EVTs. We also found that Cd exposure changes the methylation status of the promoter region of the HLA-G gene, which is specifically expressed in EVTs. Together, these results suggest that Cd inhibits placental formation by suppressing trophoblast differentiation into EVTs. This suppression may underlie the increased risk of gestational hypertension in women with high whole-blood Cd levels.
Collapse
Affiliation(s)
- Shoko Ogushi
- Department of Life Science, Faculty of Science and Engineering, Setsunan University, Neyagawa, Osaka 572-8508, Japan
| | - Tsuyoshi Nakanishi
- Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, Gifu, Gifu 501-1196, Japan
| | - Tomoki Kimura
- Department of Life Science, Faculty of Science and Engineering, Setsunan University, Neyagawa, Osaka 572-8508, Japan
| |
Collapse
|
4
|
Chen RF, Chen PM, Pan CS, Huang CC, Chiang EPI. Association of metallothionein 2A rs10636 with low mean corpuscular volume (MCV), low mean corpuscular haemoglobin (MCH) in healthy Taiwanese. Sci Rep 2023; 13:1292. [PMID: 36690679 PMCID: PMC9869811 DOI: 10.1038/s41598-022-27304-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 12/29/2022] [Indexed: 01/25/2023] Open
Abstract
Human metallothionein-2A (MT2A) protein participates in metal homeostasis, detoxification, oxidative stress reduction, and immune defense. It decreases heavy metal ions and reactive oxygen species (ROS) during injury of cells and tissues. The single nucleotide polymorphisms at the MT2A gene have been associated in various human diseases including cancer. The current study aimed to elucidate associations between MT2A genotypes with the clinical, biochemical, and molecular characteristics that potentially related to lowered MT2A ex-pression. One hundred and forty-one healthy Taiwanese subjects were enrolled from Changhua Show-Chwan Memorial Hospital. Clinical, biochemical and molecular characteristics including the frequent minor allele SNPs, rs28366003 and rs10636, within the MT2A gene were determined. The genotype distribution of MT2A rs10636 fits the Hardy-Weinberg equilibrium. The significant associations with gradually decline of mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) were identified with MT2A rs10636 and rs28366003 using analysis of variance (ANOVA) with Tukey's analysis as a post hoc test. We further validated the correlations between the expressions of genes in erythropoiesis, cholesterol synthesis, platelet synthesis, insulin with MT2A using the web-based Gene Expression Profiling Interactive Analysis (GEPIA) databases. The results revealed that hypoxia-inducible factor 1α (HIF-1α), erythropoietin (EPO), lipoprotein lipase (LPL), and lecithin-cholesterol acyltransferase (LCAT) mRNA ex-pression are significantly correlated with MT2A mRNA expression. In conclusion, these results suggested that genetic variations of MT2A rs10636 and rs28366003 might be an important risk factor for erythropoiesis in the Taiwanese general population.
Collapse
Affiliation(s)
- Rong-Fu Chen
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan, Republic of China
| | - Po-Ming Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, Republic of China
- Research Assistant Center, Show-Chwan Memorial Hospital, Changhua, 500, Taiwan, Republic of China
| | - Chau-Shiung Pan
- Department of Neurology, Show-Chwan Memorial Hospital, Changhua, Taiwan, Republic of China
| | - Chieh-Cheng Huang
- Department of Life Science, National Chung Hsing University, Taichung, 40402, Taiwan, Republic of China
- Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung, 402, Taiwan, Republic of China
| | - En-Pei Isabel Chiang
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, Republic of China.
- Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung, 402, Taiwan, Republic of China.
| |
Collapse
|
5
|
The Difference in Zinc Concentrations Required for Induction among Metallothionein Isoforms Can Be Explained by the Different MTF1 Affinities to MREs in Its Promoter. Int J Mol Sci 2022; 24:ijms24010283. [PMID: 36613726 PMCID: PMC9820605 DOI: 10.3390/ijms24010283] [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: 11/30/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Metallothioneins (MTs) are cysteine-rich low-molecular-weight proteins that protect cells from heavy metal toxicity. MT1 and MT2 are considered ubiquitously expressed among the MT isoforms ranging from 1 to 4. These MT1 and MT2 transcriptions are regulated by metal regulatory transcription factor 1 (MTF1) binding to the metal response element (MRE) of the promoter, which is upregulated in response to zinc. The functional MT isoforms are MT1A, MT1B, MT1E, MT1F, MT1G, MT1H, MT1M, MT1X, and MT2A in humans, but these expressions were differently regulated. Here, MT1A was shown to be significantly less upregulated by zinc than MT1E, MT1G, MT1X, and MT2A. The poor responsiveness of the MT1A zinc was suggested to be due to the MRE sequence in the MT1A promoter region having a lower MTF1 binding affinity compared to the other isoforms. MT1A may be induced via pathways other than the MTF1-MRE binding pathway. These findings may help elucidate the differential regulation of MT isoform expression.
Collapse
|
6
|
Heterologous Expression of Human Metallothionein Gene HsMT1L Can Enhance the Tolerance of Tobacco ( Nicotiana nudicaulis Watson) to Zinc and Cadmium. Genes (Basel) 2022; 13:genes13122413. [PMID: 36553680 PMCID: PMC9777932 DOI: 10.3390/genes13122413] [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: 11/10/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Metallothionein (MT) is a multifunctional inducible protein in animals, plants, and microorganisms. MT is rich in cysteine residues (10-30%), can combine with metal ions, has a low molecular weight, and plays an essential biological role in various stages of the growth and development of organisms. Due to its strong ability to bind metal ions and scavenge free radicals, metallothionein has been used in medicine, health care, and other areas. Zinc is essential for plant growth, but excessive zinc (Zn) is bound to poison plants, and cadmium (Cd) is a significant environmental pollutant. A high concentration of cadmium can significantly affect the growth and development of plants and even lead to plant death. In this study, the human metallothionein gene HsMT1L under the control of the CaMV 35S constitutive promoter was transformed into tobacco, and the tolerance and accumulation capacity of transgenic tobacco plants to Zn and Cd were explored. The results showed that the high-level expression of HsMT1L in tobacco could significantly enhance the accumulation of Zn2+ and Cd2+ in both the aboveground parts and the roots compared to wild-type tobacco plants and conferred a greater tolerance to Zn and Cd in transgenic tobacco. Subcellular localization showed that HsMT1L was localized to the nucleus and cytoplasm in the tobacco. Our study suggests that HsMT1L can be used for the phytoremediation of soil for heavy metal removal.
Collapse
|
7
|
Gunn AP, McLean CA, Crouch PJ, Roberts BR. Quantification of metallothionein-III in brain tissues using liquid chromatography tandem mass spectrometry. Anal Biochem 2021; 630:114326. [PMID: 34358515 DOI: 10.1016/j.ab.2021.114326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 12/19/2022]
Abstract
Metallothioneins (MTs) are crucial for metal ion homeostasis in mammalian cells. Specialized mass spectrometry methods have been developed to detect MTs in tissue extracts, though facile methods with scalable throughput are lacking. To improve analytical throughput and repeatability, we developed a standardised liquid chromatography tandem mass spectrometry (LC-MS/MS) method for robust determination of metallothionein-3 (MT3) that is amenable to microplate processing. This method uses standard protein digestion conditions with commercially available reagents and commonly practiced reversed-phase chromatography, detecting MT3 at low ng/mL levels in human brain tissue extracts. We found that trypsin digestion largely underestimated MT3 levels, whereas endopeptidase Lys-C yielded vastly higher signals with low replicate variance. The choice of target peptide was critical for accurate MT3 detection - a peptide in the α-domain yielded the most robust signals. We demonstrate the utility of this method by comparing the expression of MT3 in post-mortem brain tissues of a cohort of Alzheimer's disease (AD) individuals and age-matched controls.
Collapse
Affiliation(s)
- Adam P Gunn
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, 3052, Australia
| | - Catriona A McLean
- Department of Anatomical Pathology, Alfred Hospital, Prahran, Victoria, 3004, Australia
| | - Peter J Crouch
- Department of Biochemistry and Pharmacology, The University of Melbourne, Parkville, Victoria, Australia
| | - Blaine R Roberts
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, 30322, USA; Department of Neurology, Emory University School of Medicine, Atlanta, GA, 30322, USA.
| |
Collapse
|
8
|
Rosa RR, Garcia MA, Alves PT, Sousa EM, Pimentel LS, Barbosa LD, Loyola AM, Goulart LR, Faria PC, Cardoso SV. Revisiting the metallothionein genes polymorphisms and the risk of oral squamous cell carcinoma in a Brazilian population. Med Oral Patol Oral Cir Bucal 2021; 26:e334-e340. [PMID: 33340085 PMCID: PMC8141308 DOI: 10.4317/medoral.24215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 11/23/2020] [Indexed: 11/15/2022] Open
Abstract
Background Metallothioneins (MTs) gene polymorphisms have been associated with the ability of free radical scavenging and detoxification of heavy metals leading to cancer development. Our aim was to revisit, in a Brazilian population, single-nucleotide polymorphisms (SNPs) of the MT gene family previously associated with oral squamous cell carcinoma (OSCC).
Material and Methods A case-control investigation with 28 OSCC patients and 45 controls was conducted, using conventional risk factors (tobacco use and alcohol consumption) as covariates. SNPs genotyping for rs8052334 (MT1B), rs964372 (MT1B), and rs1610216 (MT2A) was performed by PCR-RFLP, and SNPs for rs11076161 (MT1A) were analyzed by TaqMan assay.
Results The only SNP associated with increased risk for OSCC was the MT-1A AA genotype (OR = 4.7; p = 0.01). We have also evidenced for the first time a significant linkage disequilibrium between the SNPs of MT-2A and MT-1A in this population with the highest frequency (30%) of the unfavorable haplotype G/A/C/T (rs1610216 / rs11076161 / rs964372 / rs8052334) of MT gene polymorphisms (OR = 6.2; p = 0.04). Interestingly, after removing the effects of conventional risk factors, we have uncovered the significance of the AA genotype of the rs11076161 with increased odds of 19-fold higher towards OSCC development.
Conclusions This is the first demonstration that a significant linkage disequilibrium among gene polymorphisms of the MT family may affect susceptibility to oral cancer, which is conditioned by the G/A/C/T haplotype (rs1610216/rs11076161/rs964372/ rs8052334) and the MT-1A gene polymorphism has a potential clinical utility for the OSCC risk assessment. Key words:Oral squamous cell carcinoma, polymorphism, metallothionein, oral cancer.
Collapse
Affiliation(s)
- R-R Rosa
- Federal University of Uberlândia School of Dentistry, Area of Pathology Av. Pará, nº 1.720, CEP: 38.405-320 Uberlândia - MG, Brazil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Cabanelas E, Panadero R, Baumman A, Alves MP, Summerfield A, García-Dios D, Díaz P, Remesar S, Fernández G, Morrondo MP, Díez-Baños P, López CM. Cytokine expression in bovine PBMC cultures stimulated with Hypoderma lineatum antigens. Vet Parasitol 2020; 283:109165. [PMID: 32535488 DOI: 10.1016/j.vetpar.2020.109165] [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: 01/03/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 10/24/2022]
Abstract
Hypoderma antigens are involved in host inflammation and immune response, conditioning larvae survival. In this study, peripheral blood mononuclear cell (PBMC) cultures from Hypoderma sensitized and unsensitized cattle were performed to determine the effect of H. lineatum antigens and incubation time (18, 24, 48 h) on IFN-γ, TNF-α, IL-10 and IL-4 mRNA gene expression determined by RT-qPCR. TNF-α and IL-4 gene expression were higher in Hypoderma previously sensitized PBMCs, suggesting that a mixed Th1/Th2 response may play a significant role in host defence reactions against Hypoderma exhibited by previously infested cattle. Incubation time had a significant effect on IL-10 and TNF-α gene expression, which decreased over time. Regarding to H. lineatum antigens, the crude larval extract and the purified fraction hypodermin B (HB) produced a significant reduction of the mRNA expression levels of the proinflammatory cytokine, IFN-γ; moreover, the HB had a stimulating effect on the mRNA gene expression of the anti-inflammatory cytokine IL-10, demonstrating that the parasite would modulate the host defence mechanisms by avoiding harmful immune responses that would limit its survival into the host tissues.
Collapse
Affiliation(s)
- E Cabanelas
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - R Panadero
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain.
| | - A Baumman
- Institute of Virology and Immunology, Bern, Switzerland; Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - M P Alves
- Institute of Virology and Immunology, Bern, Switzerland; Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - A Summerfield
- Institute of Virology and Immunology, Bern, Switzerland; Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - D García-Dios
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - P Díaz
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - S Remesar
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - G Fernández
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - M P Morrondo
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - P Díez-Baños
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - C M López
- Departamento de Patoloxía Animal: Sanidade Animal (Grupo INVESAGA). Facultade de Veterinaria. Universidade de Santiago de Compostela, Lugo, 27002, Spain
| |
Collapse
|
10
|
Joneidi Z, Mortazavi Y, Memari F, Roointan A, Chahardouli B, Rostami S. The impact of genetic variation on metabolism of heavy metals: Genetic predisposition? Biomed Pharmacother 2019; 113:108642. [DOI: 10.1016/j.biopha.2019.108642] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 02/08/2023] Open
|
11
|
McNeill RV, Mason AS, Hodson ME, Catto JWF, Southgate J. Specificity of the Metallothionein-1 Response by Cadmium-Exposed Normal Human Urothelial Cells. Int J Mol Sci 2019; 20:ijms20061344. [PMID: 30884885 PMCID: PMC6471910 DOI: 10.3390/ijms20061344] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 01/21/2023] Open
Abstract
Occupational and environmental exposure to cadmium is associated with the development of urothelial cancer. The metallothionein (MT) family of genes encodes proteins that sequester metal ions and modulate physiological processes, including zinc homeostasis. Little is known about the selectivity of expression of the different MT isoforms. Here, we examined the effect of cadmium exposure on MT gene and isoform expression by normal human urothelial (NHU) cell cultures. Baseline and cadmium-induced MT gene expression was characterized by next-generation sequencing and RT-PCR; protein expression was assessed by Western blotting using isoform-specific antibodies. Expression of the zinc transporter-1 (SLC30A1) gene was also assessed. NHU cells displayed transcription of MT-2A, but neither MT-3 nor MT-4 genes. Most striking was a highly inducer-specific expression of MT-1 genes, with cadmium inducing transcription of MT-1A, MT-1G, MT-1H, and MT-1M. Whereas MT-1G was also induced by zinc and nickel ions and MT-1H by iron, both MT-1A and MT-1M were highly cadmium-specific, which was confirmed for protein using isoform-specific antibodies. Protein but not transcript endured post-exposure, probably reflecting sequestration. SLC30A1 transcription was also affected by cadmium ion exposure, potentially reflecting perturbation of intracellular zinc homeostasis. We conclude that human urothelium displays a highly inductive profile of MT-1 gene expression, with two isoforms identified as highly specific to cadmium, providing candidate transcript and long-lived protein biomarkers of cadmium exposure.
Collapse
Affiliation(s)
- Rhiannon V McNeill
- Jack Birch Unit for Molecular Carcinogenesis, Department of Biology, York Biomedical Research Institute, University of York, York YO10 5DD, UK.
| | - Andrew S Mason
- Jack Birch Unit for Molecular Carcinogenesis, Department of Biology, York Biomedical Research Institute, University of York, York YO10 5DD, UK.
| | - Mark E Hodson
- Department of Environment and Geography, University of York, York YO10 5DD, UK.
| | - James W F Catto
- Academic Urology Unit, University of Sheffield, Sheffield S10 2TN, UK.
| | - Jennifer Southgate
- Jack Birch Unit for Molecular Carcinogenesis, Department of Biology, York Biomedical Research Institute, University of York, York YO10 5DD, UK.
| |
Collapse
|
12
|
Enrichment and Identification of Metallothionein by Functionalized Nano-Magnetic Particles and Matrix Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1016/s1872-2040(18)61096-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
13
|
Ziller A, Fraissinet-Tachet L. Metallothionein diversity and distribution in the tree of life: a multifunctional protein. Metallomics 2018; 10:1549-1559. [DOI: 10.1039/c8mt00165k] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Metallothioneins are diverse, but not represented yet in all phyla. Moreover, they play a central role as a [MT:T:TO] protein system.
Collapse
Affiliation(s)
- Antoine Ziller
- Microbial Ecology
- CNRS UMR 5557
- UMR INRA 1418
- Université Lyon1
- Université de Lyon
| | | |
Collapse
|
14
|
Metallothioneins: Emerging Modulators in Immunity and Infection. Int J Mol Sci 2017; 18:ijms18102197. [PMID: 29065550 PMCID: PMC5666878 DOI: 10.3390/ijms18102197] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/14/2017] [Accepted: 10/17/2017] [Indexed: 12/21/2022] Open
Abstract
Metallothioneins (MTs) are a family of metal-binding proteins virtually expressed in all organisms including prokaryotes, lower eukaryotes, invertebrates and mammals. These proteins regulate homeostasis of zinc (Zn) and copper (Cu), mitigate heavy metal poisoning, and alleviate superoxide stress. In recent years, MTs have emerged as an important, yet largely underappreciated, component of the immune system. Innate and adaptive immune cells regulate MTs in response to stress stimuli, cytokine signals and microbial challenge. Modulation of MTs in these cells in turn regulates metal ion release, transport and distribution, cellular redox status, enzyme function and cell signaling. While it is well established that the host strictly regulates availability of metal ions during microbial pathogenesis, we are only recently beginning to unravel the interplay between metal-regulatory pathways and immunological defenses. In this perspective, investigation of mechanisms that leverage the potential of MTs to orchestrate inflammatory responses and antimicrobial defenses has gained momentum. The purpose of this review, therefore, is to illumine the role of MTs in immune regulation. We discuss the mechanisms of MT induction and signaling in immune cells and explore the therapeutic potential of the MT-Zn axis in bolstering immune defenses against pathogens.
Collapse
|
15
|
Irvine GW, Stillman MJ. Residue Modification and Mass Spectrometry for the Investigation of Structural and Metalation Properties of Metallothionein and Cysteine-Rich Proteins. Int J Mol Sci 2017; 18:ijms18050913. [PMID: 28445428 PMCID: PMC5454826 DOI: 10.3390/ijms18050913] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 04/18/2017] [Accepted: 04/20/2017] [Indexed: 12/23/2022] Open
Abstract
Structural information regarding metallothioneins (MTs) has been hard to come by due to its highly dynamic nature in the absence of metal-thiolate cluster formation and crystallization difficulties. Thus, typical spectroscopic methods for structural determination are limited in their usefulness when applied to MTs. Mass spectrometric methods have revolutionized our understanding of protein dynamics, structure, and folding. Recently, advances have been made in residue modification mass spectrometry in order to probe the hard-to-characterize structure of apo- and partially metalated MTs. By using different cysteine specific alkylation reagents, time dependent electrospray ionization mass spectrometry (ESI-MS), and step-wise “snapshot” ESI-MS, we are beginning to understand the dynamics of the conformers of apo-MT and related species. In this review we highlight recent papers that use these and similar techniques for structure elucidation and attempt to explain in a concise manner the data interpretations of these complex methods. We expect increasing resolution in our picture of the structural conformations of metal-free MTs as these techniques are more widely adopted and combined with other promising tools for structural elucidation.
Collapse
Affiliation(s)
- Gordon W Irvine
- Department of Chemistry, The University of Western Ontario, London, ON N6A 3K7, Canada.
| | - Martin J Stillman
- Department of Chemistry, The University of Western Ontario, London, ON N6A 3K7, Canada.
| |
Collapse
|
16
|
Hou XF, Xu LP, Song HY, Li S, Wu C, Wang JF. ECRG2 enhances the anti-cancer effects of cisplatin in cisplatin-resistant esophageal cancer cells via upregulation of p53 and downregulation of PCNA. World J Gastroenterol 2017; 23:1796-1803. [PMID: 28348485 PMCID: PMC5352920 DOI: 10.3748/wjg.v23.i10.1796] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/06/2017] [Accepted: 01/18/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To explore the anti-tumor effects of esophageal cancer-related gene 2 (ECRG2) in combination with cisplatin (DDP) in DDP-resistant esophageal cancer cells (EC9706/DDP).
METHODS A drug-resistant cell model was established, with EC9706/DDP cells being treated with ECRG2 and/or DDP. Cell viability was examined by MTT assay. The rate of cell apoptosis was determined by flow cytometry. The mRNA expression levels of proliferating cell nuclear antigen (PCNA), metallothionein (MT), and p53 were determined by RT-PCR and PCNA, while MT and p53 protein expression levels were determined by western blotting.
RESULTS The anti-proliferative effect of ECRG2 in combination with DDP was superior when compared to ECRG2 or DDP alone. The inhibition rate for the combination reached its peak (51.33%) at 96 h. The early apoptotic rates of the control, ECRG2 alone, DDP alone, and ECRG2 plus DDP groups were 5.71% ± 0.27%, 12.68% ± 0.61%, 14.15% ± 0.87%, and 27.96% ± 0.36%, respectively. Although all treatment groups were significantly different from the control group (P < 0.05), the combination treatment of ECRG2 plus DDP performed significantly better when compared to either ECRG2 or DDP alone (P < 0.05). The combination of ECRG2 and DDP significantly upregulated p53 mRNA and protein levels and downregulated PCNA mRNA and protein levels compared to ECRG2 or DDP alone (P < 0.05). However, no changes were seen in the expression of MT mRNA or protein.
CONCLUSION ECRG2 in combination with DDP can inhibit viability and induce apoptosis in esophageal cancer DDP-resistant cells, possibly via upregulation of p53 expression and downregulation of PCNA expression. These findings suggest that the combination of ECRG2 and DDP may be a promising strategy for the clinical treatment of esophageal cancers that are resistant to DDP.
Collapse
|
17
|
Na H, Liu X, Li X, Zhang X, Wang Y, Wang Z, Yuan M, Zhang Y, Ren S, Zuo Y. Novel roles of DC-SIGNR in colon cancer cell adhesion, migration, invasion, and liver metastasis. J Hematol Oncol 2017; 10:28. [PMID: 28109307 PMCID: PMC5251210 DOI: 10.1186/s13045-016-0383-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Accepted: 12/30/2016] [Indexed: 01/14/2023] Open
Abstract
Background Tumor metastasis is an essential cause of the poor prognosis of colon cancer. DC-SIGNR is a C-type lectin that is frequently found on human liver sinusoidal endothelial cells. LSECtin, which is a homologue of DC-SIGNR, has been demonstrated to participate in colon cancer liver metastasis. Due to the similarities in the expression pattern and structure of the two proteins, we speculated that DC-SIGNR could also be involved in this process. Methods Colon cancer cells were treated with the DC-SIGNR protein or control IgG, after which cell migration, invasion, and morphology were assayed. Xenograft mouse models were used to determine the role of DC-SIGNR in colon cancer liver metastasis in vivo. In addition, a human gene expression array was used to detect differential gene expression in colon cancer cells stimulated with the DC-SIGNR protein. The serum level of DC-SIGNR was examined in colon cancer patients by ELISA, and the significance of DC-SIGNR was determined. Results In our research, we investigated whether DC-SIGNR promotes colon cancer cell adhesion, migration, and invasion. Knocking down mouse DC-SIGNR decreased the liver metastatic potency of colon cancer cells and increased survival time. Expressing human DC-SIGNR enhanced colon cancer liver metastasis. Furthermore, DC-SIGNR conferred metastatic capability on cancer cells by upregulating various metallothionein isoforms. To validate the above results, we also found that the serum DC-SIGNR level was statistically higher in colon cancer patients with liver metastasis compared with those without metastasis. Conclusions These results imply that DC-SIGNR may promote colon carcinoma hepatic metastasis and could serve as a promising therapeutic target for anticancer treatment. Electronic supplementary material The online version of this article (doi:10.1186/s13045-016-0383-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Heya Na
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China
| | - Xiaoli Liu
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China
| | - Xiaomeng Li
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China
| | - Xinsheng Zhang
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Yu Wang
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China
| | - Zhaohui Wang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Menglang Yuan
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Yu Zhang
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China
| | - Shuangyi Ren
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China.
| | - Yunfei Zuo
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| |
Collapse
|
18
|
Rahman MT, De Ley M. Arsenic Induction of Metallothionein and Metallothionein Induction Against Arsenic Cytotoxicity. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 240:151-168. [PMID: 27115674 DOI: 10.1007/398_2016_2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Human exposure to arsenic (As) can lead to oxidative stress that can become evident in organs such as the skin, liver, kidneys and lungs. Several intracellular antioxidant defense mechanisms including glutathione (GSH) and metallothionein (MT) have been shown to minimize As cytotoxicity. The current review summarizes the involvement of MT as an intracellular defense mechanism against As cytotoxicity, mostly in blood. Zinc (Zn) and selenium (Se) supplements are also proposed as a possible remediation of As cytotoxicity. In vivo and in vitro studies on As toxicity were reviewed to summarize cytotoxic mechanisms of As. Intracellular antioxidant defense mechanisms of MT are linked in relation to As cytotoxicity. Arsenic uses a different route, compared to major metal MT inducers such as Zn, to enter/exit blood cells. A number of in vivo and in vitro studies showed that upregulated MT biosynthesis in blood components are related to toxic levels of As. Despite the cysteine residues in MT that aid to bind As, MT is not the preferred binding protein for As. Nonetheless, intracellular oxidative stress due to As toxicity can be minimized, if not eliminated, by MT. Thus MT induction by essential metals such as Zn and Se supplementation could be beneficial to fight against As toxicity.
Collapse
Affiliation(s)
| | - Marc De Ley
- Laboratorium voor Biochemie, Katholieke Universiteit Leuven, Celestijnenlaan 200G, Postbus 2413, 3001, Leuven-Heverlee, Belgium
| |
Collapse
|
19
|
Shabb J, Muhonen W, Mehus A. Quantitation of Human Metallothionein Isoforms in Cells, Tissues, and Cerebrospinal Fluid by Mass Spectrometry. Methods Enzymol 2017; 586:413-431. [DOI: 10.1016/bs.mie.2016.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
20
|
Irvine GW, Stillman MJ. Cadmium binding mechanisms of isolated domains of human MT isoform 1a: Non-cooperative terminal sites and cooperative cluster sites. J Inorg Biochem 2016; 158:115-121. [DOI: 10.1016/j.jinorgbio.2016.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 03/05/2016] [Accepted: 03/10/2016] [Indexed: 10/22/2022]
|
21
|
Ostrakhovitch EA, Song YP, Cherian MG. Basal and copper-induced expression of metallothionein isoform 1,2 and 3 genes in epithelial cancer cells: The role of tumor suppressor p53. J Trace Elem Med Biol 2016; 35:18-29. [PMID: 27049123 DOI: 10.1016/j.jtemb.2016.01.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 01/14/2016] [Accepted: 01/14/2016] [Indexed: 12/13/2022]
Abstract
Metallothioneins (MTs) are a ubiquitous low-molecular weight, cysteine rich proteins with a high affinity for metal ions. The expression and induction of MTs have been associated with protection against DNA damage, oxidative stress, and apoptosis. Our past research had shown that p53 is an important factor in metal regulation of MTs. The present study was undertaken to explore further the interrelationship between p53 and MTs. We investigated whether silencing of p53 could affect expression pattern of basal and copper induced metallothioneins. The silencing of wild-type p53 (wt-p53) in epithelial breast cancer MCF7 cells affected the basal level of MT-2A RNA, whereas the levels of MT-1A and MT-1X RNA remained largely unchanged. The expression of MT-3 was undetectable in MCF7 with either functional or silenced p53. MCF7 cells with silenced wt-p53 failed to upregulate MT-2A in response to copper and showed a reduced sensitivity toward copper induced cell apoptotic death. Similarly in MCF7-E6 and MDA-MB-231 cells, the presence of inactive/mutated p53 halted MT-1A and MT-2A gene expression in response to copper. Constitutive expression of MT-3 RNA was detectable in the presence of mutated p53 (mtp53). Transient transfection of MDA-MB-231 cells with wt-p53 enabled copper induced upregulation of both MT-1A and MT-2A but not basal level of MT-2A, MT-1E, MT-1X and MT-3. Inactivation of p53 in HepG2 cells amplified the basal expression of studied MT isoforms, including MT-3, as well as copper-induced mRNA expression of MTs except MT-1H and MT-3. Presented data demonstrate a direct relation between p53 and MT-1A and MT-2A and they also indicate that wt-p53 might be a negative regulator of MT-3 in epithelial cancer cells.
Collapse
Affiliation(s)
- E A Ostrakhovitch
- Department of Pathology, University of Western Ontario, Canada; Department of Chemistry, University of Western Ontario, Canada.
| | - Y P Song
- Department of Pathology, University of Western Ontario, Canada; Department of Chemistry, University of Western Ontario, Canada
| | - M G Cherian
- Department of Pathology, University of Western Ontario, Canada; Department of Chemistry, University of Western Ontario, Canada
| |
Collapse
|
22
|
Leierer J, Rudnicki M, Braniff SJ, Perco P, Koppelstaetter C, Mühlberger I, Eder S, Kerschbaum J, Schwarzer C, Schroll A, Weiss G, Schneeberger S, Wagner S, Königsrainer A, Böhmig GA, Mayer G. Metallothioneins and renal ageing. Nephrol Dial Transplant 2016; 31:1444-52. [PMID: 26908771 DOI: 10.1093/ndt/gfv451] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 12/16/2015] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Human lifespan is increasing continuously and about one-third of the population >70 years of age suffers from chronic kidney disease. The pathophysiology of the loss of renal function with ageing is unclear. METHODS We determined age-associated gene expression changes in zero-hour biopsies of deceased donor kidneys without laboratory signs of impaired renal function, defined as a last serum creatinine >0.96 mg/dL in females and >1.18 mg/dL in males, using microarray technology and the Significance Analysis of Microarrays routine. Expression changes of selected genes were confirmed by quantitative polymerase chain reaction and in situ hybridization and immunohistochemistry for localization of respective mRNA and protein. Functional aspects were examined in vitro. RESULTS Donors were classified into three age groups (<40, 40-59 and >59 years; Groups 1, 2 and 3, respectively). In Group 3 especially, genes encoding for metallothionein (MT) isoforms were more significantly expressed when compared with Group 1; localization studies revealed predominant staining in renal proximal tubular cells. RPTEC/TERT1 cells overexpressing MT2A were less susceptible towards cadmium chloride-induced cytotoxicity and hypoxia-induced apoptosis, both models for increased generation of reactive oxygen species. CONCLUSIONS Increased expression of MTs in the kidney with ageing might be a protective mechanism against increased oxidative stress, which is closely related to the ageing process. Our findings indicate that MTs are functionally involved in the pathophysiology of ageing-related processes.
Collapse
Affiliation(s)
- Johannes Leierer
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Michael Rudnicki
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Susie-Jane Braniff
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Paul Perco
- Emergentec Biodevelopment GmbH, Vienna, Austria
| | - Christian Koppelstaetter
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | | | - Susanne Eder
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Julia Kerschbaum
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Christoph Schwarzer
- Department of Pharmacology, Medical University Innsbruck, Innsbruck, Austria
| | - Andrea Schroll
- Department of Internal Medicine VI, Clinical Immunology and Infectious Diseases, Medical University, Innsbruck, Austria
| | - Günter Weiss
- Department of Internal Medicine VI, Clinical Immunology and Infectious Diseases, Medical University, Innsbruck, Austria
| | - Stefan Schneeberger
- Center of Operative Medicine, Department of Visceral, Transplant and Thoracic Surgery, Medical University Innsbruck, Innsbruck, Austria
| | - Silvia Wagner
- Department of General, Visceral and Transplant Surgery, University of Tübingen, Tübingen, Germany
| | - Alfred Königsrainer
- Department of General, Visceral and Transplant Surgery, University of Tübingen, Tübingen, Germany
| | - Georg A Böhmig
- Division of Nephrology and Dialysis, Department of Internal Medicine III, Medical University Vienna, Vienna, Austria
| | - Gert Mayer
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| |
Collapse
|
23
|
Starska K, Bryś M, Forma E, Olszewski J, Pietkiewicz P, Lewy-Trenda I, Stasikowska-Kanicka O, Danilewicz M, Krześlak A. Metallothionein 2A core promoter region genetic polymorphism and its impact on the risk, tumor behavior, and recurrences of sinonasal inverted papilloma (Schneiderian papilloma). Tumour Biol 2015; 36:8559-71. [PMID: 26036762 PMCID: PMC4672009 DOI: 10.1007/s13277-015-3616-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 05/26/2015] [Indexed: 01/20/2023] Open
Abstract
Inverted papillomas are a unique group of locally aggressive benign epithelial neoplasms in the nasal cavity and paranasal sinuses arising from the Schneiderian mucosa. Metallothioneins are sulfhydryl-rich heavy metal-binding proteins required for metal toxicity protection and regulation of biological mechanisms including proliferation and invasion. The goal of this study was to identify three SNPs at loci −5 A/G (rs28366003) and −209 A/G (rs1610216) in the core promoter region and at locus +838 C/G (rs10636) in 3′UTR region of the MT2A gene with IP risk and with tumor invasiveness according to Krouse staging. Genotyping was performed using the PCR restriction fragment length polymorphism technique in 130 genetically unrelated IP individuals, and 418 randomly selected healthy volunteers. The presence of the rs28366003 SNP was significantly related to the risk of IP within the present population-based case-control study. Compared to homozygous common allele carriers, heterozygosity and homozygosity for the G variant had a significantly increased risk of IP (adjusted odds ratio [OR] = 7.71, 95 % confidence interval [CI]: 4.01–14.91, pdominant < 0.001). Moreover, risk allele carriers demonstrated higher Krouse stage (pT1 vs. pT2-4) (OR = 19.32; 95 % CI, 2.30–173.53; p < 0.0001), diffuse tumor growth (OR = 4.58; 95 % CI, 1.70–12.11; p = 0.0008), bone destruction (OR = 4.13; 95 % CI, 1.50–11.60; p = 0.003), and higher incidence of tumor recurrences (OR = 5.11; 95 % CI, 1.68–15.20; p = 0.001). The findings suggest that MT2A gene variation rs28366003 may be implicated in the etiology of sinonasal inverted papilloma in a Polish population.
Collapse
Affiliation(s)
- Katarzyna Starska
- I Department of Otolaryngology and Laryngological Oncology, Medical University of Łódź, Kopcinskiego 22, 90-153, Łódź, Poland.
| | - Magdalena Bryś
- Department of Cytobiochemistry, University of Łódź, Pomorska 142/143, 90-236, Łódź, Poland
| | - Ewa Forma
- Department of Cytobiochemistry, University of Łódź, Pomorska 142/143, 90-236, Łódź, Poland
| | - Jurek Olszewski
- II Department of Otolaryngology and Laryngological Oncology, Medical University of Łódź, Żeromskiego 113, 90-549, Łódź, Poland
| | - Piotr Pietkiewicz
- II Department of Otolaryngology and Laryngological Oncology, Medical University of Łódź, Żeromskiego 113, 90-549, Łódź, Poland
| | - Iwona Lewy-Trenda
- Department of Pathology, Medical University of Łódź, Pomorska 251, 92-213, Łódź, Poland
| | | | - Marian Danilewicz
- Department of Pathology, Medical University of Łódź, Pomorska 251, 92-213, Łódź, Poland
| | - Anna Krześlak
- Department of Cytobiochemistry, University of Łódź, Pomorska 142/143, 90-236, Łódź, Poland
| |
Collapse
|
24
|
Starska K, Bryś M, Forma E, Olszewski J, Pietkiewicz P, Lewy-Trenda I, Danilewicz M, Krześlak A. The effect of metallothionein 2A core promoter region single-nucleotide polymorphism on accumulation of toxic metals in sinonasal inverted papilloma tissues. Toxicol Appl Pharmacol 2015; 285:187-97. [PMID: 25900616 DOI: 10.1016/j.taap.2015.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/08/2015] [Accepted: 04/09/2015] [Indexed: 12/13/2022]
Abstract
Metallothioneins (MTs) are intracellular thiol-rich heavy metal-binding proteins which join trace metal ions protecting cells against heavy metal toxicity and regulate metal distribution and donation to various enzymes and transcription factors. The goal of this study was to identify the -5 A/G (rs28366003) single-nucleotide polymorphism (SNP) in the core promoter region of the MT2A gene, and to investigate its effect on allele-specific gene expression and Cd, Zn, Cu and Ni content in sinonasal inverted papilloma tissue (IP), with non-cancerous sinonasal mucosa (NCM) as a control. The MT2A promoter region -5 A/G SNP was identified by restriction fragment length polymorphism using 117 IP and 132 NCM. MT2A gene analysis was performed by quantitative real-time PCR. Metal levels were analyzed by flame atomic absorption spectrometry. The frequency of A allele carriage was 99.2% and 100% in IP and NCM, respectively. The G allele carriage was detected in 23.9% of IP and in 12.1% of the NCM samples. As a result, a significant association of -5 A/G SNP in MT2A gene with mRNA expression in both groups was determined. A significant association was identified between the -5 A/G SNP in the MT2A gene with mRNA expression in both groups. A highly significant association was detected between the rs28366003 genotype and Cd and Zn content in IP. Furthermore, significant differences were identified between A/A and A/G genotype with regard to the type of metal contaminant. The Spearman rank correlation results showed the MT2A gene expression and both Cd and Cu levels were negatively correlated. The results obtained in this study suggest that the -5 A/G SNP in the MT2A gene may have an effect on allele-specific gene expression and toxic metal accumulation in sinonasal inverted papilloma.
Collapse
Affiliation(s)
- Katarzyna Starska
- I Department of Otolaryngology and Laryngological Oncology, Medical University of Łódź, Kopcinskiego 22, 90-153 Łódź, Poland.
| | - Magdalena Bryś
- Department of Cytobiochemistry, University of Łódź, Pomorska 142/143, 90-236 Łódź, Poland
| | - Ewa Forma
- Department of Cytobiochemistry, University of Łódź, Pomorska 142/143, 90-236 Łódź, Poland
| | - Jurek Olszewski
- II Department of Otolaryngology and Laryngological Oncology, Medical University of Łódź, Żeromskiego 113, 90-549 Łódź, Poland
| | - Piotr Pietkiewicz
- II Department of Otolaryngology and Laryngological Oncology, Medical University of Łódź, Żeromskiego 113, 90-549 Łódź, Poland
| | - Iwona Lewy-Trenda
- Department of Pathology, Medical University of Łódź, Pomorska 251, 92-213 Łódź, Poland
| | - Marian Danilewicz
- Department of Pathology, Medical University of Łódź, Pomorska 251, 92-213 Łódź, Poland
| | - Anna Krześlak
- Department of Cytobiochemistry, University of Łódź, Pomorska 142/143, 90-236 Łódź, Poland
| |
Collapse
|
25
|
Sex differences in shotgun proteome analyses for chronic oral intake of cadmium in mice. PLoS One 2015; 10:e0121819. [PMID: 25793409 PMCID: PMC4368563 DOI: 10.1371/journal.pone.0121819] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 02/04/2015] [Indexed: 12/03/2022] Open
Abstract
Environmental diseases related to cadmium exposure primarily develop owing to industrial wastewater pollution and/or contaminated food. In regions with high cadmium exposure in Japan, cadmium accumulation occurs primarily in the kidneys of individuals who are exposed to the metal. In contrast, in the itai-itai disease outbreak that occurred in the Jinzu River basin in Toyama Prefecture in Japan, cadmium primarily accumulated in the liver. On the other hand, high concentration of cadmium caused renal tubular disorder and osteomalacia (multiple bone fracture), probably resulting from the renal tubular dysfunction and additional pathology. In this study, we aimed to establish a mouse model of chronic cadmium intake. We administered cadmium-containing drinking water (32 mg/l) to female and male mice ad libitum for 11 weeks. Metal analysis using inductively coupled plasma mass spectrometry revealed that cadmium accumulated in the kidneys (927 x 10 + 185 ng/g in females and 661 x 10 + 101 ng/g in males), liver (397 x 10 + 199 ng/g in females and 238 x 10 + 652 ng/g in males), and thyroid gland (293 + 93.7 ng/g in females and 129 + 72.7 ng/g in males) of mice. Female mice showed higher cadmium accumulation in the kidney, liver, and thyroid gland than males did (p = 0.00345, p = 0.00213, and p = 0.0331, respectively). Shotgun proteome analyses after chronic oral administration of cadmium revealed that protein levels of glutathione S-transferase Mu2, Mu4, and Mu7 decreased in the liver, and those of A1 and A2 decreased in the kidneys in both female and male mice.
Collapse
|
26
|
The −5 A/G single-nucleotide polymorphism in the core promoter region of MT2A and its effect on allele-specific gene expression and Cd, Zn and Cu levels in laryngeal cancer. Toxicol Appl Pharmacol 2014; 280:256-63. [DOI: 10.1016/j.taap.2014.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 07/02/2014] [Accepted: 08/15/2014] [Indexed: 12/13/2022]
|
27
|
Meng HE, Liu ZY. Metallothioneins and digestive system tumors. Shijie Huaren Xiaohua Zazhi 2014; 22:2722-2727. [DOI: 10.11569/wcjd.v22.i19.2722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Metallothioneins (MTs) are low-molecular weight, cysteine-rich, intracellular metal-binding proteins involved in diverse functions, such as metal homeostasis and/or detoxification, scavenging free radicals and stress response. Recent studies show that MTs play an important role in cell differentiation, proliferation and carcinogenesis by displaying different expression patterns and through different signaling pathways, have important value for the clinical diagnosis, treatment and prognosis of tumors, and can be used as a cancer biomarker. This article aims to discuss the research progress in MTs as a cancer maker in human digestive system tumors.
Collapse
|
28
|
Starska K, Krześlak A, Forma E, Olszewski J, Lewy-Trenda I, Osuch-Wójcikiewicz E, Bryś M. Genetic polymorphism of metallothionein 2A and risk of laryngeal cancer in a Polish population. Med Oncol 2014; 31:75. [PMID: 24952512 DOI: 10.1007/s12032-014-0075-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Accepted: 06/11/2014] [Indexed: 12/20/2022]
Abstract
Metallothioneins are intracellular regulators of many biological mechanisms including differentiation, proliferation, angiogenesis and invasion, which are crucial processes in carcinogenesis. This study examines the association between three single-nucleotide polymorphisms at loci -5 A/G (rs28366003) and -209 A/G (rs1610216) in the core promoter region and at locus +838 C/G (rs10636) in 3'UTR region of the metallothionein 2A (MT2A) gene with squamous cell laryngeal cancer (SCLC) risk, as well as with tumor invasiveness according to tumor front grading (TFG). Genotyping was performed using the polymerase chain reaction-restriction fragment length polymorphism technique in 323 genetically unrelated individuals with SCLC and 418 randomly selected healthy volunteers. Only one SNP (rs28366003) was significantly related to laryngeal cancer in the study population. Compared with homozygous common allele carriers, heterozygous and homozygous for the G variant had significantly increased risk of SCLC [adjusted odds ratio (OR) = 2.90, 95 % confidence interval (CI) 1.53-5.21, p dominant < 0.001]. The A/G allele carriers at rs28366003 MT2A were at higher risk of SCLC development (OR = 2.63, 95 % CI 1.41-2.85, p < 0.001]. There was a significant association between the rs28366003 and stage and TFG classification. Most carriers of minor allele had a higher stage (OR = 2.76, 95 % CI 1.11-7.52, p = 0.03), increased cancer aggressiveness, as defined by a higher total TFG score (>18 points) (OR = 3.76, 95 % CI 1.15-12.56, p = 0.03) and diffuse tumor growth (OR = 5.86, 95 % Cl 0.72-44.79, p = 0.08). The results of this study raise a possibility that a genetic variation of MT2A may be implicated in the etiology of laryngeal cancer in a Polish population.
Collapse
Affiliation(s)
- Katarzyna Starska
- I Department of Otolaryngology and Laryngological Oncology, Medical University of Łódź, Kopcinskiego 22, 90-153, Lodz, Poland,
| | | | | | | | | | | | | |
Collapse
|