1
|
Nunzio AD, Giarra A, Toscanesi M, Amoresano A, Piscopo M, Ceretti E, Zani C, Lorenzetti S, Trifuoggi M, Montano L. Comparison between Macro and Trace Element Concentrations in Human Semen and Blood Serum in Highly Polluted Areas in Italy. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191811635. [PMID: 36141930 PMCID: PMC9517217 DOI: 10.3390/ijerph191811635] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/05/2022] [Accepted: 09/12/2022] [Indexed: 06/06/2023]
Abstract
Macro and trace elements are important regulators of biological processes, including those ones linked to reproduction. Among them, Ca, Cu, Fe, K, Mg, Mn, Na, Se, and Zn ensure normal spermatic functions. Hence, the aim of this study was to evaluate the concentrations of 26 macro and trace elements (Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Li, Mg, Mn, Na, Ni, Pb, Rb, Sb, Se, Sn, Sr, U, V, and Zn) in blood serum and also in semen of healthy young men, homogeneous for age, anthropometric characteristics, and lifestyle, living in three highly polluted areas in Italy. Furthermore, a comparison among three geographical areas was performed to highlight any difference in the investigated parameters and, overall, to speculate any correlations between chemical elements and semen quality. Statistically significant differences (p < 0.05) among the three areas were found for each investigated element, in both semen and serum samples, where inter-area differences were more evident in semen than in blood serum, suggesting human semen as an early environmental marker. Considering the homogeneity of three cohorts, these differences could be due more to environmental conditions in the recruiting areas, suggesting that variations in those involved in reproductive-associated pathways can have an impact on male fertility. Nevertheless, more research is needed to evaluate threshold values for sperm dysfunction and male infertility. Actually, the role of different dietary intake and environmental exposure underlying the observed differences in the recruiting areas is under further investigation for the same cohort.
Collapse
Affiliation(s)
- Aldo Di Nunzio
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
| | - Antonella Giarra
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
| | - Maria Toscanesi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
| | - Angela Amoresano
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
- Istituto Nazionale Biostrutture e Biosistemi-Consorzio Interuniversitario, Viale delle Medaglie d’Oro, 305, 00136 Rome, Italy
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy
| | - Elisabetta Ceretti
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
| | - Claudia Zani
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
| | - Stefano Lorenzetti
- Department of Food Safety, Nutrition and Veterinary Public Health, Italian National Institute of Health (ISS), 00161 Rome, Italy
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
| | - Luigi Montano
- Andrology Unit and Service of Lifestyle Medicine in UroAndrology, Local Health Authority (ASL) Salerno, Coordination Unit of the Network for Environmental and Reproductive Health (EcoFoodFertility Project), Italy “Oliveto Citra Hospital”, Oliveto Citra, 84020 Salerno, Italy
- PhD Program in Evolutionary Biology and Ecology, University of Rome Tor Vergata, 00133 Rome, Italy
| |
Collapse
|
2
|
Płonka D, Kotuniak R, Dąbrowska K, Bal W. Electrospray-Induced Mass Spectrometry Is Not Suitable for Determination of Peptidic Cu(II) Complexes. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2766-2776. [PMID: 34738801 PMCID: PMC8640992 DOI: 10.1021/jasms.1c00206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
The toolset of mass spectrometry (MS) is still expanding, and the number of metal ion complexes researched this way is growing. The Cu(II) ion forms particularly strong peptide complexes of biological interest which are frequent objects of MS studies, but quantitative aspects of some reported results are at odds with those of experiments performed in solution. Cu(II) complexes are usually characterized by fast ligand exchange rates, despite their high affinity, and we speculated that such kinetic lability could be responsible for the observed discrepancies. In order to resolve this issue, we selected peptides belonging to the ATCUN family characterized with high and thoroughly determined Cu(II) binding constants and re-estimated them using two ESI-MS techniques: standard conditions in combination with serial dilution experiments and very mild conditions for competition experiments. The sample acidification, which accompanies the electrospray formation, was simulated with the pH-jump stopped-flow technique. Our results indicate that ESI-MS should not be used for quantitative studies of Cu(II)-peptide complexes because the electrospray formation process compromises the entropic contribution to the complex stability, yielding underestimations of complex stability constants.
Collapse
|
3
|
Schrenk D, Bignami M, Bodin L, Chipman JK, del Mazo J, Grasl‐Kraupp B, Hogstrand C, Hoogenboom L(R, Leblanc J, Nebbia CS, Ntzani E, Petersen A, Sand S, Schwerdtle T, Vleminckx C, Wallace H, Guérin T, Massanyi P, Van Loveren H, Baert K, Gergelova P, Nielsen E. Update of the risk assessment of nickel in food and drinking water. EFSA J 2020; 18:e06268. [PMID: 33193868 PMCID: PMC7643711 DOI: 10.2903/j.efsa.2020.6268] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The European Commission asked EFSA to update its previous Opinion on nickel in food and drinking water, taking into account new occurrence data, the updated benchmark dose (BMD) Guidance and newly available scientific information. More than 47,000 analytical results on the occurrence of nickel were used for calculating chronic and acute dietary exposure. An increased incidence of post-implantation loss in rats was identified as the critical effect for the risk characterisation of chronic oral exposure and a BMDL 10 of 1.3 mg Ni/kg body weight (bw) per day was selected as the reference point for the establishment of a tolerable daily intake (TDI) of 13 μg/kg bw. Eczematous flare-up reactions in the skin elicited in nickel-sensitised humans, a condition known as systemic contact dermatitis, was identified as the critical effect for the risk characterisation of acute oral exposure. A BMDL could not be derived, and therefore, the lowest-observed-adverse-effect-level of 4.3 μg Ni/kg bw was selected as the reference point. The margin of exposure (MOE) approach was applied and an MOE of 30 or higher was considered as being indicative of a low health concern. The mean lower bound (LB)/upper bound (UB) chronic dietary exposure was below or at the level of the TDI. The 95th percentile LB/UB chronic dietary exposure was below the TDI in adolescents and in all adult age groups, but generally exceeded the TDI in toddlers and in other children, as well as in infants in some surveys. This may raise a health concern in these young age groups. The MOE values for the mean UB acute dietary exposure and for the 95th percentile UB raises a health concern for nickel-sensitised individuals. The MOE values for an acute scenario regarding consumption of a glass of water on an empty stomach do not raise a health concern.
Collapse
|
4
|
Lettieri G, Marra F, Moriello C, Prisco M, Notari T, Trifuoggi M, Giarra A, Bosco L, Montano L, Piscopo M. Molecular Alterations in Spermatozoa of a Family Case Living in the Land of Fires. A First Look at Possible Transgenerational Effects of Pollutants. Int J Mol Sci 2020; 21:ijms21186710. [PMID: 32933216 PMCID: PMC7555199 DOI: 10.3390/ijms21186710] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/09/2020] [Accepted: 09/11/2020] [Indexed: 02/07/2023] Open
Abstract
In our previous work, we reported alterations in protamines/histones ratio, in DNA binding of these proteins and their involvement in DNA oxidative damage in 84% of the young men living in the Land of Fires. In the present work, we extended our findings, evaluating any alterations in spermatozoa of a family case, a father and son, living in this area, to also give a first look at the possibility of transgenerational inherited effects of environmental contaminants on the molecular alterations of sperm nuclear basic proteins (SNBP), DNA and semen parameters. In the father and son, we found a diverse excess of copper and chromium in the semen, different alterations in SNBP content and low DNA binding affinity of these proteins. In addition, DNA damage, in the presence of CuCl2 and H2O2, increased by adding both the father and son SNBP. Interestingly, son SNBP, unlike his father, showed an unstable DNA binding and were able to produce DNA damage even without external addition of CuCl2, in line with a lower seminal antioxidant activity than the father. The peculiarity of some characteristics of son semen could be a basis for possible future studies on transgenerational effects of pollutants on fertility.
Collapse
Affiliation(s)
- Gennaro Lettieri
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
| | - Federica Marra
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
| | - Claudia Moriello
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
| | - Marina Prisco
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
| | - Tiziana Notari
- Check Up—Day Surgery, Polydiagnostic and Research Centre, Reproductive Medicine Unit, 84131 Salerno, Italy;
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (M.T.); (A.G.)
| | - Antonella Giarra
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (M.T.); (A.G.)
| | - Liana Bosco
- Department of Biological, Chemistry and Pharmaceutical Sciences and Technologies, University of Palermo, Viale delle Scienze Ed.16, 90128 Palermo, Italy;
| | - Luigi Montano
- Andrology Unit of the “S. Francesco d’Assisi” Hospital, Local Health Authority (ASL) Salerno, EcoFoodFertility Project Coordination Unit, 84020 Oliveto Citra, Italy
- Correspondence: (L.M.); (M.P.); Tel.: +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
- Correspondence: (L.M.); (M.P.); Tel.: +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
| |
Collapse
|
5
|
Lettieri G, D’Agostino G, Mele E, Cardito C, Esposito R, Cimmino A, Giarra A, Trifuoggi M, Raimondo S, Notari T, Febbraio F, Montano L, Piscopo M. Discovery of the Involvement in DNA Oxidative Damage of Human Sperm Nuclear Basic Proteins of Healthy Young Men Living in Polluted Areas. Int J Mol Sci 2020; 21:ijms21124198. [PMID: 32545547 PMCID: PMC7349829 DOI: 10.3390/ijms21124198] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/01/2020] [Accepted: 06/10/2020] [Indexed: 12/20/2022] Open
Abstract
DNA oxidative damage is one of the main concerns being implicated in severe cell alterations, promoting different types of human disorders and diseases. For their characteristics, male gametes are the most sensitive cells to the accumulation of damaged DNA. We have recently reported the relevance of arginine residues in the Cu(II)-induced DNA breakage of sperm H1 histones. In this work, we have extended our previous findings investigating the involvement of human sperm nuclear basic proteins on DNA oxidative damage in healthy males presenting copper and chromium excess in their semen. We found in 84% of those males an altered protamines/histones ratio and a different DNA binding mode even for those presenting a canonical protamines/histones ratio. Furthermore, all the sperm nuclear basic proteins from these samples that resulted were involved in DNA oxidative damage, supporting the idea that these proteins could promote the Fenton reaction in DNA proximity by increasing the availability of these metals near the binding surface of DNA. In conclusion, our study reveals a new and unexpected behavior of human sperm nuclear basic proteins in oxidative DNA damage, providing new insights for understanding the mechanisms related to processes in which oxidative DNA damage is implicated.
Collapse
Affiliation(s)
- Gennaro Lettieri
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Giovanni D’Agostino
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Elena Mele
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Carolina Cardito
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Rosa Esposito
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Annalinda Cimmino
- CNR, Institute of Biochemistry and Cell Biology, via Pietro Castellino, 80131 Naples, Italy;
| | - Antonella Giarra
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (A.G.); (M.T.)
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (A.G.); (M.T.)
| | | | - Tiziana Notari
- GEA—Gynecology Embryology Andrology—Reproductive Medicine Unit of Check Up Polydiagnostic Center, 84131 Salerno, Italy;
| | - Ferdinando Febbraio
- CNR, Institute of Biochemistry and Cell Biology, via Pietro Castellino, 80131 Naples, Italy;
- Correspondence: (F.F.); (L.M.); (M.P.); Tel.: +39-081-613-2611 (F.F.); +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
| | - Luigi Montano
- Andrology Unit of the “S. Francesco d’Assisi” Hospital, Local Health Authority (ASL) Salerno, EcoFoodFertility Project Coordination Unit, 84020 Oliveto Citra, Italy
- Correspondence: (F.F.); (L.M.); (M.P.); Tel.: +39-081-613-2611 (F.F.); +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
- Correspondence: (F.F.); (L.M.); (M.P.); Tel.: +39-081-613-2611 (F.F.); +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
| |
Collapse
|
6
|
Gonzalez P, Bossak K, Stefaniak E, Hureau C, Raibauta L, Balc W, Faller P. N-Terminal Cu-Binding Motifs (Xxx-Zzz-His, Xxx-His) and Their Derivatives: Chemistry, Biology and Medicinal Applications. Chemistry 2018; 24:8029-8041. [PMID: 29336493 PMCID: PMC6152890 DOI: 10.1002/chem.201705398] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Indexed: 12/28/2022]
Abstract
Peptides and proteins with N-terminal amino acid sequences NH2 -Xxx-His (XH) and NH2 -Xxx-Zzz-His (XZH) form well-established high-affinity CuII -complexes. Key examples are Asp-Ala-His (in serum albumin) and Gly-His-Lys, the wound healing factor. This opens a straightforward way to add a high-affinity CuII -binding site to almost any peptide or protein, by chemical or recombinant approaches. Thus, these motifs, NH2 -Xxx-Zzz-His in particular, have been used to equip peptides and proteins with a multitude of functions based on the redox activity of Cu, including nuclease, protease, glycosidase, or oxygen activation properties, useful in anticancer or antimicrobial drugs. More recent research suggests novel biological functions, mainly based on the redox inertness of CuII in XZH, like PET imaging (with 64 Cu), chelation therapies (for instance in Alzheimer's disease and other types of neurodegeneration), antioxidant units, Cu transporters and activation of biological functions by strong CuII binding. This Review gives an overview of the chemical properties of Cu-XH and -XZH motifs and discusses the pros and cons of the vastly different biological applications, and how they could be improved depending on the application.
Collapse
Affiliation(s)
- Paulina Gonzalez
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Karolina Bossak
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Ewelina Stefaniak
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Christelle Hureau
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
- CNRS; LCC (Laboratoire de Chimie de Coordination) 205, route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, UPS, INPT ; LCC; F-31077 Toulouse, France
| | - Laurent Raibauta
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Wojciech Balc
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Peter Faller
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| |
Collapse
|
7
|
Belczyk-Ciesielska A, Csipak B, Hajdu B, Sparavier A, Asaka MN, Nagata K, Gyurcsik B, Bal W. Nickel(ii)-promoted specific hydrolysis of zinc finger proteins. Metallomics 2018; 10:1089-1098. [DOI: 10.1039/c8mt00098k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The (S/T)XH sequence in Cys2His2zinc fingers can be hydrolytically cleaved by Ni(ii) ions. This reaction can be applied for purification, inhibition or activation of designed zinc finger fusion proteins.
Collapse
Affiliation(s)
| | - Brigitta Csipak
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- Szeged H-6720
- Hungary
| | - Bálint Hajdu
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- Szeged H-6720
- Hungary
| | | | - Masamitsu N. Asaka
- Nagata Special Laboratory
- Faculty of Medicine
- University of Tsukuba
- Tsukuba 305-8575
- Japan
| | - Kyosuke Nagata
- Nagata Special Laboratory
- Faculty of Medicine
- University of Tsukuba
- Tsukuba 305-8575
- Japan
| | - Béla Gyurcsik
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- Szeged H-6720
- Hungary
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences
- Warsaw
- Poland
| |
Collapse
|
8
|
Agbale CM, Cardoso MH, Galyuon IK, Franco OL. Designing metallodrugs with nuclease and protease activity. Metallomics 2017; 8:1159-1169. [PMID: 27714031 DOI: 10.1039/c6mt00133e] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The accidental discovery of cisplatin some 50 years ago generated renewed interest in metallopharmaceuticals. Beyond cisplatin, many useful metallodrugs have been synthesized for the diagnosis and treatment of various diseases, but toxicity concerns, and the propensity to induce chemoresistance and secondary cancers make it imperative to search for novel metallodrugs that address these limitations. The Amino Terminal Cu(ii) and Ni(ii) (ATCUN) binding motif has emerged as a suitable template to design catalytic metallodrugs with nuclease and protease activities. Unlike their classical counterparts, ATCUN-based metallodrugs exhibit low toxicity, employ novel mechanisms to irreversibly inactivate disease-associated genes or proteins providing in principle, a channel to circumvent the rapid emergence of chemoresistance. The ATCUN motif thus presents novel strategies for the treatment of many diseases including cancers, HIV and infections caused by drug-resistant bacteria at the genetic level. This review discusses their design, mechanisms of action and potential for further development to expand their scope of application.
Collapse
Affiliation(s)
- Caleb Mawuli Agbale
- School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana and S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil.
| | - Marlon Henrique Cardoso
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil. and Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, 70719-100 Brasília, DF, Brazil and Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, 70910-900 Brasília, DF, Brazil
| | - Isaac Kojo Galyuon
- School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Octávio Luiz Franco
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil. and Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, 70719-100 Brasília, DF, Brazil and Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, 70910-900 Brasília, DF, Brazil
| |
Collapse
|
9
|
Metal assisted peptide bond hydrolysis: Chemistry, biotechnology and toxicological implications. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.02.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
10
|
Lee KH, Chen HL, Leung CM, Chen HP, Hsu PC. Indium acetate toxicity in male reproductive system in rats. ENVIRONMENTAL TOXICOLOGY 2016; 31:68-76. [PMID: 25044390 DOI: 10.1002/tox.22022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Revised: 06/18/2014] [Accepted: 06/21/2014] [Indexed: 06/03/2023]
Abstract
Indium, a rare earth metal characterized by high plasticity, corrosion resistance, and a low melting point, is widely used in the electronics industry, but has been reported to be an environmental pollutant and a health hazard. We designed a study to investigate the effects of subacute exposure of indium compounds on male reproductive function. Twelve-week old male Sprague-Dawley rats were randomly divided into test and control groups, and received weekly intraperitoneal injections of indium acetate (1.5 mg/kg body weight) and normal saline, respectively, for 8 weeks. Serum indium levels, cauda epididymal sperm count, motility, morphology, chromatin DNA structure, mitochondrial membrane potential, oxidative stress, and testis DNA content were investigated. The indium acetate-treated group showed significant reproductive toxicity, as well as an increased percentage of sperm morphology abnormality, chromatin integrity damage, and superoxide anion generation. Furthermore, positive correlations among sperm morphology abnormalities, chromatin DNA damage, and superoxide anion generation were also noted. The results of this study demonstrated the toxic effect of subacute low-dose indium exposure during the period of sexual maturation on male reproductive function in adulthood, through an increase in oxidative stress and sperm chromatin DNA damage during spermiogenesis, in a rodent model.
Collapse
Affiliation(s)
- Kuo-Hsin Lee
- Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung, 811, Taiwan
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, Kaohsiung, 824, Taiwan
| | - Hsiu-Ling Chen
- Institute of Occupational Safety and Hazard Prevention, Hung Kuang University, Taichung, 43302, Taiwan
| | - Chung-Man Leung
- Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung, 811, Taiwan
- Department of Radiation Oncology, Kaohsiung Veterans General Hospital, Kaohsiung, 813, Taiwan
| | - Hsin-Pao Chen
- Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung, 811, Taiwan
- Department of Surgery, E-DA Hospital, I-Shou University, Kaohsiung, 824, Taiwan
| | - Ping-Chi Hsu
- Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung, 811, Taiwan
- School of Health Sciences, Faculty of Health and Medicine, The University of Newcastle, Callaghan NSW, 2308, Australia
| |
Collapse
|
11
|
Mital M, Wezynfeld NE, Frączyk T, Wiloch MZ, Wawrzyniak UE, Bonna A, Tumpach C, Barnham KJ, Haigh CL, Bal W, Drew SC. A Functional Role for Aβ in Metal Homeostasis? N-Truncation and High-Affinity Copper Binding. Angew Chem Int Ed Engl 2015; 54:10460-4. [PMID: 26178596 DOI: 10.1002/anie.201502644] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Indexed: 11/09/2022]
Abstract
Accumulation of the β-amyloid (Aβ) peptide in extracellular senile plaques rich in copper and zinc is a defining pathological feature of Alzheimer's disease (AD). The Aβ1-x (x=16/28/40/42) peptides have been the primary focus of Cu(II) binding studies for more than 15 years; however, the N-truncated Aβ4-42 peptide is a major Aβ isoform detected in both healthy and diseased brains, and it contains a novel N-terminal FRH sequence. Proteins with His at the third position are known to bind Cu(II) avidly, with conditional log K values at pH 7.4 in the range of 11.0-14.6, which is much higher than that determined for Aβ1-x peptides. By using Aβ4-16 as a model, it was demonstrated that its FRH sequence stoichiometrically binds Cu(II) with a conditional Kd value of 3×10(-14) M at pH 7.4, and that both Aβ4-16 and Aβ4-42 possess negligible redox activity. Combined with the predominance of Aβ4-42 in the brain, our results suggest a physiological role for this isoform in metal homeostasis within the central nervous system.
Collapse
Affiliation(s)
- Mariusz Mital
- Florey Department of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010 (Australia).,Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw (Poland)
| | - Nina E Wezynfeld
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw (Poland)
| | - Tomasz Frączyk
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw (Poland)
| | - Magdalena Z Wiloch
- Department of Microbioanalytics, Faculty of Chemistry, Warsaw University of Technology (Poland)
| | - Urszula E Wawrzyniak
- Department of Microbioanalytics, Faculty of Chemistry, Warsaw University of Technology (Poland)
| | - Arkadiusz Bonna
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw (Poland)
| | - Carolin Tumpach
- Florey Department of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010 (Australia)
| | - Kevin J Barnham
- Florey Department of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010 (Australia).,Department of Pharmacology and Therapeutics, The University of Melbourne, Victoria, 3010 (Australia)
| | - Cathryn L Haigh
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Victoria, 3010 (Australia)
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw (Poland).
| | - Simon C Drew
- Florey Department of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010 (Australia).
| |
Collapse
|
12
|
Mital M, Wezynfeld NE, Frączyk T, Wiloch MZ, Wawrzyniak UE, Bonna A, Tumpach C, Barnham KJ, Haigh CL, Bal W, Drew SC. A Functional Role for Aβ in Metal Homeostasis? N-Truncation and High-Affinity Copper Binding. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502644] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
13
|
Wezynfeld NE, Bonna A, Bal W, Frączyk T. Ni(ii) ions cleave and inactivate human alpha-1 antitrypsin hydrolytically, implicating nickel exposure as a contributing factor in pathologies related to antitrypsin deficiency. Metallomics 2015; 7:596-604. [DOI: 10.1039/c4mt00316k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ni(ii) ions cleave AAT hydrolytically, inactivating the protein.
Collapse
Affiliation(s)
- Nina Ewa Wezynfeld
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences
- 02-106 Warsaw, Poland
| | - Arkadiusz Bonna
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences
- 02-106 Warsaw, Poland
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences
- 02-106 Warsaw, Poland
| | - Tomasz Frączyk
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences
- 02-106 Warsaw, Poland
| |
Collapse
|
14
|
Das M, Nasani R, Saha M, Mobin SM, Mukhopadhyay S. Nickel(ii) complexes with a flexible piperazinyl moiety: studies on DNA and protein binding and catecholase like properties. Dalton Trans 2015; 44:2299-310. [DOI: 10.1039/c4dt02675f] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Nickel complexes with a flexible piperazinyl moiety are showing interesting DNA and protein binding properties and catecholase like activity in the boat conformation.
Collapse
Affiliation(s)
- Mriganka Das
- Department of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 452017
- India
| | - Rajendar Nasani
- Department of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 452017
- India
| | - Manideepa Saha
- Department of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 452017
- India
| | - Shaikh M Mobin
- Department of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 452017
- India
| | - Suman Mukhopadhyay
- Department of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 452017
- India
| |
Collapse
|
15
|
Medici S, Peana M, Nurchi VM, Zoroddu MA. The involvement of amino acid side chains in shielding the nickel coordination site: an NMR study. Molecules 2013; 18:12396-414. [PMID: 24108401 PMCID: PMC6269899 DOI: 10.3390/molecules181012396] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/26/2013] [Accepted: 09/29/2013] [Indexed: 11/16/2022] Open
Abstract
Coordination of proteins and peptides to metal ions is known to affect their properties, often by a change in their structural organization. Side chains of the residues directly involved in metal binding or very close to the coordination centre may arrange themselves around it, in such a way that they can, for instance, disrupt the protein functions or stabilize a metal complex by shielding it from the attack of water or other small molecules. The conformation of these side chains may be crucial to different biological or toxic processes. In our research we have encountered such behaviour in several cases, leading to interesting results for our purposes. Here we give an overview on the structural changes involving peptide side chains induced by Ni(II) coordination. In this paper we deal with a number of peptides, deriving from proteins containing one or more metal coordinating sites, which have been studied through a series of NMR experiments in their structural changes caused by Ni(II) complexation. Several peptides have been included in the study: short sequences from serum albumin (HSA), Des-Angiotensinogen, the 30-amino acid tail of histone H4, some fragments from histone H2A and H2B, the initial fragment of human protamine HP2 and selected fragments from prion and Cap43 proteins. NMR was the election technique for gathering structural information. Experiments performed for this purpose included 1D 1H and 13C, and 2D HSQC, COSY, TOCSY, NOESY and ROESY acquisitions, which allowed the calculation of the Ni(II) complexes structural models.
Collapse
Affiliation(s)
- Serenella Medici
- Department of Chemistry and Pharmacy, University of Sassari, Via Vienna 2, 07100, Sassari, Italy; E-Mails: (S.M.); (M.P.); (V.M.N.)
| | - Massimiliano Peana
- Department of Chemistry and Pharmacy, University of Sassari, Via Vienna 2, 07100, Sassari, Italy; E-Mails: (S.M.); (M.P.); (V.M.N.)
| | - Valeria Marina Nurchi
- Department of Chemical and Geological Sciences, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Cagliari, Italy
| | - Maria Antonietta Zoroddu
- Department of Chemistry and Pharmacy, University of Sassari, Via Vienna 2, 07100, Sassari, Italy; E-Mails: (S.M.); (M.P.); (V.M.N.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-079-229529; Fax: +39-079-228720
| |
Collapse
|
16
|
Binding of transition metal ions to albumin: sites, affinities and rates. Biochim Biophys Acta Gen Subj 2013; 1830:5444-55. [PMID: 23811338 DOI: 10.1016/j.bbagen.2013.06.018] [Citation(s) in RCA: 303] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 06/14/2013] [Accepted: 06/17/2013] [Indexed: 01/13/2023]
Abstract
BACKGROUND Serum albumin is the most abundant protein in the blood and cerebrospinal fluid and plays a fundamental role in the distribution of essential transition metal ions in the human body. Human serum albumin (HSA) is an important physiological transporter of the essential metal ions Cu(2+), and Zn(2+) in the bloodstream. Its binding of metals like Ni(2+), Co(2+), or Cd(2+) can occur in vivo, but is only of toxicological relevance. Moreover, HSA is one of the main targets and hence most studied binding protein for metallodrugs based on complexes with Au, Pt and V. SCOPE OF REVIEW We discuss i) the four metal-binding sites so far described on HSA, their localization and metal preference, ii) the binding of the metal ions mentioned above, i.e. their stability constants and association/dissociation rates, their coordination chemistry and their selectivity versus the four binding sites iii) the methodology applied to study issues of items i and ii and iv) oligopeptide models of the N-terminal binding site. MAJOR CONCLUSIONS Albumin has four partially selective metal binding sites with well-defined metal preferences. It is an important regulator of the blood transport of physiological Cu(II) and Zn(II) and toxic Ni(II) and Cd(II). It is also an important target for metal-based drugs containing Pt(II), V(IV)O, and Au(I). GENERAL SIGNIFICANCE The thorough understanding of metal binding properties of serum albumin, including the competition of various metal ions for specific binding sites is important for biomedical issues, such as new disease markers and design of metal-based drugs. This article is part of a Special Issue entitled Serum Albumin.
Collapse
|
17
|
Murawska-Ciałowicz E, Bal W, Januszewska L, Zawadzki M, Rychel J, Zuwała-Jagiełło J. Oxidative stress level in the testes of mice and rats during nickel intoxication. ScientificWorldJournal 2012; 2012:395741. [PMID: 22448131 PMCID: PMC3290116 DOI: 10.1100/2012/395741] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Accepted: 12/12/2011] [Indexed: 12/21/2022] Open
Abstract
The genotioxic and carcinogenic effect of nickel probably results from its capacity to produce reactive oxygen species (ROS) and disturb the redox balance. The aim of the study was to find out if rats lacking spermatic protamine 2 are less susceptible to Ni(II) than mice. Consequently, the levels of malondialdehyde + 4 hydroxynonenal (MDA+4HDA) − markers of lipid peroxidation, as well as the level of reduced glutathione (GSH) were measured within the rat and mouse testes. Our results showed that the levels of lipid peroxidation markers were elevated in testicular homogenates of intoxicated mice without any changes in rats. GSH level was lower in the group of intoxicated mice comparing to the control without statistically significant changes in rats' homogenates. Moreover, the level of GSH in the testes of intoxicated mice was lower than in rats. On the basis of our results, it appears that Ni(II) can initiate oxidative stress in the testes of mice but not of rats and can reduce GSH level. Consequently, the antioxidative defense of the testes is reduced. Ni(II) that causes oxidative stress in the testes may also contribute to infertility.
Collapse
Affiliation(s)
- Eugenia Murawska-Ciałowicz
- Physiology and Biochemistry Department, University of Physical Education, Avenue I.J. Paderewskiego 35, 51-612 Wroclaw, Poland.
| | | | | | | | | | | |
Collapse
|
18
|
Zavitsanos K, Nunes AM, Malandrinos G, Hadjiliadis N. Copper effective binding with 32–62 and 94–125 peptide fragments of histone H2B. J Inorg Biochem 2011; 105:102-10. [DOI: 10.1016/j.jinorgbio.2010.09.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 09/15/2010] [Accepted: 09/16/2010] [Indexed: 11/29/2022]
|
19
|
Li K, Zhang J, Zhang ZW, Xiang YZ, Lin HH, Yu XQ. Immobilization cyclen copper (II) on merrifield resin: Efficient oxidative cleavage of plasmid DNA. J Appl Polym Sci 2009. [DOI: 10.1002/app.29266] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
20
|
Nunes AMPC, Zavitsanos K, Del Conte R, Malandrinos G, Hadjiliadis N. Interaction of histone H2B (fragment 63–93) with Ni(ii). An NMR study. Dalton Trans 2009:1904-13. [DOI: 10.1039/b817411c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
21
|
Cabras T, Patamia M, Melino S, Inzitari R, Messana I, Castagnola M, Petruzzelli R. Pro-oxidant activity of histatin 5 related Cu(II)-model peptide probed by mass spectrometry. Biochem Biophys Res Commun 2007; 358:277-84. [PMID: 17482573 DOI: 10.1016/j.bbrc.2007.04.121] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Accepted: 04/19/2007] [Indexed: 11/18/2022]
Abstract
Histatin 5 is a cationic salivary peptide with strong candidacidal and bactericidal activity at physiological concentration. In this paper we demonstrate by optical spectroscopy and ESI-IT-MS experiments that a synthetic peptide related to the N-terminus of histatin 5 specifically binds copper ions in vitro and that the complex metal-peptide generates reactive oxygen species at physiological concentration of ascorbate, leading to significant auto-oxidation of the peptide within short reaction time. The oxidative activity of this peptide is associated to the presence of a specific metal binding site present at its N-terminus. The motif is constituted by the amino acid sequence NH(2)-Asp-Ser-His, representing a copper and nickel amino terminal binding site, known as "ATCUN motif". The results of the study suggest that the production of reactive oxygen species can be an intrinsic property of histatin 5 connected to its ability to bind metals.
Collapse
Affiliation(s)
- Tiziana Cabras
- Dipartimento di Scienze Applicate ai Biosistemi, Università di Cagliari, Italy
| | | | | | | | | | | | | |
Collapse
|
22
|
Aitken RJ, Wingate JK, De Iuliis GN, McLaughlin EA. Analysis of lipid peroxidation in human spermatozoa using BODIPY C11. Mol Hum Reprod 2007; 13:203-11. [PMID: 17327268 DOI: 10.1093/molehr/gal119] [Citation(s) in RCA: 141] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Lipid peroxidation is known to be a major factor in the aetiology of defective sperm function. Although biochemical assays for this process exist, they are relatively insensitive and require large numbers of spermatozoa; a condition that cannot be met with many infertility specimens. Recently, a new approach for monitoring peroxidative damage has been introduced, involving the probe BODIPY (581/591) C(11), which readily incorporates into cells and undergoes a spectral emission shift when attacked by reactive oxygen metabolites. We have examined the applicability of this probe as an indicator of oxidative stress in human sperm populations using flow cytometry as an end point. The measurement of peroxidation with BODIPY C(11) demonstrated significant dependence on the presence of a ferrous ion promoter (P < 0.001), which was significantly enhanced in sperm recovered from low-density Percoll fractions (P < 0.05) and was particularly damaging to the sperm midpiece. Iron-induced radical formation was suppressed by ascorbate in a dose-dependent manner (P < 0.001) and could only be promoted by Fe(II) and Cu(II); nickel, zinc and Fe(III) were ineffective. The Fe(II)-promoted BODIPY C(11) signal was significantly correlated with the measurement of reactive oxygen species generation with dihydroethidium. We conclude that BODIPY C(11) is an extremely useful probe for indexing peroxidative damage in human spermatozoa.
Collapse
Affiliation(s)
- R John Aitken
- ARC Centre of Excellence in Biotechnology and Development, Discipline of Biological Sciences, University of Newcastle, NSW, Australia.
| | | | | | | |
Collapse
|
23
|
Torregrosa N, Domínguez-Fandos D, Camejo MI, Shirley CR, Meistrich ML, Ballescà JL, Oliva R. Protamine 2 precursors, protamine 1/protamine 2 ratio, DNA integrity and other sperm parameters in infertile patients. Hum Reprod 2006; 21:2084-9. [PMID: 16632464 DOI: 10.1093/humrep/del114] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The protamine 1-to-protamine 2 ratio (P1/P2) is altered in the sperm cells of some infertile patients. Also, evidence for increased protamine 2 precursors (pre-P2) in a few patients has been reported. But so far, there have been no studies measuring simultaneously these two variables in a large number of patients. METHODS We measured the P1/P2 ratio and the presence of pre-P2 using, for the first time, an antibody specific to the precursor pre-P2, together with other sperm parameters in 224 infertile patients. Additionally, the DNA integrity was assessed by terminal transferase dUTP nick-end labelling (TUNEL) in a subset of the samples. RESULTS Pre-P2 levels show a significant positive correlation with the P1/P2 ratio, with the presence of other proteins and, at low pre-P2 levels, with TUNEL-positive sperm. An inverse correlation with sperm count, normal morphology and motility was detected. CONCLUSIONS The levels of pre-P2 may provide clues into the pathogenic mechanisms of infertility. The increased proportion of pre-P2 in some patients with increased P1/P2 ratio suggests an involvement of pre-P2 processing. The positive correlation between TUNEL-positive sperm and pre-P2 at low pre-P2/P2 ratios also suggests a link between deficient protamine processing and decreased DNA integrity.
Collapse
Affiliation(s)
- Nuria Torregrosa
- Human Genetics Research Group, IDIBAPS, University of Barcelona, Barcelona, Spain
| | | | | | | | | | | | | |
Collapse
|
24
|
Abstract
Protamines are the major nuclear sperm proteins. The human sperm nucleus contains two types of protamine: protamine 1 (P1) encoded by a single-copy gene and the family of protamine 2 (P2) proteins (P2, P3 and P4), all also encoded by a single gene that is transcribed and translated into a precursor protein. The protamines were discovered more than a century ago, but their function is not yet fully understood. In fact, different hypotheses have been proposed: condensation of the sperm nucleus into a compact hydrodynamic shape, protection of the genetic message delivered by the spermatozoa, involvement in the processes maintaining the integrity and repair of DNA during or after the nucleohistone-nucleoprotamine transition and involvement in the epigenetic imprinting of the spermatozoa. Protamines are also one of the most variable proteins found in nature, with data supporting a positive Darwinian selection. Changes in the expression of P1 and P2 protamines have been found to be associated with infertility in man. Mutations in the protamine genes have also been found in some infertile patients. Transgenic mice defective in the expression of protamines also present several structural defects in the sperm nucleus and have variable degrees of infertility. There is also evidence that altered levels of protamines may result in an increased susceptibility to injury in the spermatozoan DNA causing infertility or poor outcomes in assisted reproduction. The present work reviews the articles published to date on the relationship between protamines and infertility.
Collapse
Affiliation(s)
- Rafael Oliva
- Human Genetics Laboratory, Genetics Unit, Department of Ciències Fisiològiques I, Faculty of Medicine, University of Barcelona and Hospital Clínic, IDIBAPS, Casanova 143, 08036 Barcelona, Spain.
| |
Collapse
|
25
|
Fang YY, Claussen CA, Lipkowitz KB, Long EC. Diastereoselective DNA cleavage recognition by Ni(II) x Gly-Gly-His-derived metallopeptides. J Am Chem Soc 2006; 128:3198-207. [PMID: 16522100 PMCID: PMC2538425 DOI: 10.1021/ja0569757] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Site-selective DNA cleavage by diastereoisomers of Ni(II) x Gly-Gly-His-derived metallopeptides was investigated through high-resolution gel analyses and molecular dynamics simulations. Ni(II) x L-Arg-Gly-His and Ni(II) x D-Arg-Gly-His (and their respective Lys analogues) targeted A/T-rich regions; however, the L-isomers consistently modified a subset of available nucleotides within a given minor groove site, while the D-isomers differed in both their sites of preference and their ability to target individual nucleotides within some sites. In comparison, Ni(II) x L-Pro-Gly-His and Ni(II) x D-Pro-Gly-His were unable to exhibit a similar diastereoselectivity. Simulations of the above systems, along with Ni(II) x Gly-Gly-His, indicated that the stereochemistry of the amino-terminal amino acid produces either an isohelical metallopeptide that associates stably at individual DNA sites (L-Arg or L-Lys) or, with D-Arg and D-Lys, a noncomplementary metallopeptide structure that cannot fully employ its side chain nor amino-terminal amine as positional stabilizing moieties. In contrast, amino-terminal Pro-containing metallopeptides of either stereochemistry, lacking an extended side chain directed toward the minor groove, did not exhibit a similar diastereoselectivity. While the identity and stereochemistry of amino acids located in the amino-terminal peptide position influenced DNA cleavage, metallopeptide diastereoisomers containing L- and D-Arg (or Lys) within the second peptide position did not exhibit diastereoselective DNA cleavage patterns; simulations indicated that a positively charged amino acid in this location alters the interaction of the metallopeptide equatorial plane and the minor groove leading to an interaction similar to Ni(II) x Gly-Gly-His.
Collapse
Affiliation(s)
- Ya-Yin Fang
- Department of Chemistry & Chemical Biology, Purdue School of Science, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274, USA
| | | | | | | |
Collapse
|
26
|
|
27
|
Zilbermann I, Maimon E, Cohen H, Meyerstein D. Redox Chemistry of Nickel Complexes in Aqueous Solutions. Chem Rev 2005; 105:2609-25. [PMID: 15941223 DOI: 10.1021/cr030717f] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Israel Zilbermann
- Chemistry Department, Nuclear Research Centre Negev, Beer-Sheva, Israel.
| | | | | | | |
Collapse
|
28
|
O'Connor JM, Bonham MP, Turley E, McKeown A, McKelvey-Martin VJ, Gilmore WS, Strain JJ. Copper supplementation has no effect on markers of DNA damage and liver function in healthy adults (FOODCUE project). ANNALS OF NUTRITION & METABOLISM 2003; 47:201-6. [PMID: 12748413 DOI: 10.1159/000070486] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2002] [Accepted: 01/07/2003] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS Copper is routinely used in the laboratory to promote oxidation in vitro. However, copper concentrations are million-fold higher than physiological concentrations and, in contrast, accumulating evidence suggests that copper may have an antioxidant role in vivo. The aim of this study was to provide data on how increased intake of copper affected mononuclear leukocyte DNA damage and liver function in healthy young free-living men and women. METHODS The study design was a double-blind repeated crossover trial with treatment and intervening placebo periods, each of 6 weeks' duration. The following supplementations were given orally in sequence: CuSO(4) at a dose of 3 mg copper/day and copper amino acid chelates at doses of 3 and 6 mg copper/day. Oxidative DNA damage was assessed using a modification of the alkaline Comet assay incorporating an endonuclease III digestion step. The assessment of liver function was by measurement of the liver enzymes, alanine aminotransferase and L-gamma-glutamyltransferase. RESULTS There was no significant alteration in mononuclear leukocyte DNA damage or on liver function after 6 weeks of copper supplementation at two doses (3 and 6 mg/day). CONCLUSIONS Copper supplementation (giving total copper intake at the highest level of 7 mg/day) did not induce DNA damage or adversely affect liver function in healthy adults.
Collapse
Affiliation(s)
- J M O'Connor
- Northern Ireland Centre for Food and Health (NICHE), Department of Biomedical Sciences, University of Ulster, Coleraine, Northern Ireland.
| | | | | | | | | | | | | |
Collapse
|
29
|
El-Khawaga OY, El-Naggar MM. Identification of 100 KDa protein in sera of mice-treated with Cu(II) complex with superoxide dismutase-mimetic activity. J Physiol Biochem 2003; 59:35-41. [PMID: 12903903 DOI: 10.1007/bf03179866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The protein profile of sera isolated from mice pre-treated with Cu(II) complex of Girard T with superoxide dismutase (SOD)-mimetic activity was analyzed using SDS-PAGE. This complex was intraperitoneally administered (10 mg/Kg body weight) to Swiss albino mice. The resolved polypeptides showed a new sharp band at 100 KDa against which a polyclonal antibody was raised in rabbit. Sera of rabbit anti-100 KDa protein was used as a powerful probe for the detection of 100 KDa protein isolated from sera of treated mice. Western blot assays revealed a strong reactive polypeptide band at 100 KDa in sera of the mice, but no cross reaction was observed with sera of normal mice. The identification of purified polypeptide was confirmed by different characterization experiments.
Collapse
Affiliation(s)
- OmAli Y El-Khawaga
- Biochemistry Division, Department of Chemistry, Faculty of Science, University of Mansoura, Mansoura, Egypt.
| | | |
Collapse
|
30
|
Abstract
This review discusses the relevance of oxidative damage to metal-induced toxicity and carcinogenesis. Presented are important facts and mechanistic concepts on the capacity of selected transition metals, mainly Ni, but also Cu, Co, Cr, and briefly several others, to generate active oxygen species and other reactive intermediates under physiological conditions. These metals are known to be toxic and/or carcinogenic contaminants of the occupational and general environments. Their redox activity may underlay the mechanism of mediation of oxidative damage to cell constituents. The presentation is focused on selected issues relative to genetic and epigenetic toxicity and illustrated with examples of metal-mediated oxidative damage to the principal components of chromatin, i.e., DNA, histones, and protamines.
Collapse
Affiliation(s)
- Kazimierz S Kasprzak
- Laboratory of Comparative Carcinogenesis, National Cancer Institute at Frederick, Frederick, MD 21701-1201, USA.
| |
Collapse
|
31
|
Abstract
The metal ions carcinogenic to humans are As, Be, Cd, Cr and Ni, and the candidates also include Co, Cu, Fe and Pt. A range of molecular mechanisms was proposed for these metals, reflecting their diverse chemical properties. The oxidative concept in metal carcinogenesis proposes that some complexes of the above metals (Co, Cr, Cu, Fe, Ni) formed in vivo undergo redox cycling, yielding reactive oxygen species and/or high valence metal ions which oxidize DNA. Some of the products of oxidative DNA damage, including 8-oxoguanine and strand breaks, induce mutations, which may lead to neoplastic transformation. The establishment of metal-binding modes in the cell nucleus and of their reactivity is crucial for the understanding of molecular events in metal carcinogenesis. We have proposed the binding sites for Ni(II) and Cu(II) in core histones (H3, H2A) and sperm protamines (HP2) and, using molecular models, provided evidence for the generation of promutagenic oxidative DNA damage by the bound metals.
Collapse
Affiliation(s)
- Wojciech Bal
- Faculty of Chemistry, University of Wroclaw, Ul. F. Joliot-Curie 14, 50-383, Poland.
| | | |
Collapse
|
32
|
Liang R, Senturker S, Shi X, Bal W, Dizdaroglu M, Kasprzak KS. Effects of Ni(II) and Cu(II) on DNA interaction with the N-terminal sequence of human protamine P2: enhancement of binding and mediation of oxidative DNA strand scission and base damage. Carcinogenesis 1999; 20:893-8. [PMID: 10334208 DOI: 10.1093/carcin/20.5.893] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Epidemiological evidence suggests that certain paternal exposures to metals may increase the risk of cancer in the progeny. This effect may be associated with promutagenic damage to the sperm DNA. The latter is packed with protamines which might sequester carcinogenic metals and moderate the damage. Human protamine P2 has an amino acid motif at its N-terminus that can serve as a heavy metal trap, especially for Ni(II) and Cu(II). We have synthesized a pentadecapeptide modeling this motif, Arg-Thr-His-Gly-Gln-Ser-His-Tyr-Arg-Arg-Arg-His-Cys-Ser-Arg-amide (HP21-15) and described its complexes with Ni(II) and Cu(II), including their capacity to mediate oxidative DNA degradation [Bal et al. (1997) Chem. Res. Toxicol., 10, 906-914 and 915-921]. In the present study, effects of HP21-15 on Ni(II)- and Cu(II)-mediated DNA oxidation by H2O2 at pH 7.4 were investigated in more detail using the circular plasmid pUC19 DNA as a target, and the single/double-strand breaks and production of oxidized DNA bases, as end points. Ni(II) alone was found to promote oxidative DNA strand scission (mostly single strand breaks) and base damage, while Cu(II) alone produced the same effects, but to a much greater extent. Both metals were relatively more damaging to the pyrimidine bases than to purine bases. HP21-15 tended to increase the Ni(II)/H2O2-induced DNA breakage. In sharp contrast, the destruction of DNA strands by Cu(II)/H2O2 was almost completely prevented by HP21-15. The effect of HP21-15 on the oxidative DNA base damage varied from a limited enhancement (5-hydroxyhydantoin and thymine glycol) to slight suppression (5-hydroxycytosine, 5-hydroxyuracil, 8-oxoguanine, 8-oxoadenine, 2-hydroxyadenine, fapyguanine and fapyadenine) toward Ni(II)/H2O2. HP21-15 strongly suppressed the oxidative activity of Cu(II)/H2O2 in regard to all bases in DNA. Consistently with the above, the electron spin resonance/spin trap measurements revealed greater and more persistent generation of OH* and O2-*-like oxidants from H2O2 by the Ni(II)-HP21-15 complex than by the Cu(II)-HP21-15 complex (no O2-* was detected). Both complexes were also found to bind to DNA more strongly than HP21-15 alone. The results indicate that protamine P2 is capable of binding Ni(II) and Cu(II) and, in this way, attenuating the mediation of oxidative DNA damage by Cu(II), but not Ni(II). The effects found may be mechanistically involved in the reproductive toxicity and carcinogenicity of metals.
Collapse
Affiliation(s)
- R Liang
- Laboratory of Comparative Carcinogenesis, National Cancer Institute, FCRDC, Frederick, MD 21702, USA
| | | | | | | | | | | |
Collapse
|
33
|
|