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Moussaron A, Alexandre J, Chenard MP, Mathelin C, Reix N. Correlation between daily life aluminium exposure and breast cancer risk: A systematic review. J Trace Elem Med Biol 2023; 79:127247. [PMID: 37354712 DOI: 10.1016/j.jtemb.2023.127247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 06/13/2023] [Accepted: 06/19/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND Epidemiological data indicate that the role of environmental factors on breast cancer (BC) incidence remains undetermined. Our daily life exposure to aluminium (Al) is suspected to influence BC development. This review proposes a state of the art on the association between Al and BC risk combined with a critical point of view on the subject. METHODS We searched the PubMed database using terms related to Al and BC up to November 18, 2022. Reports were eligible if they were cohort or case-control studies or meta-analyses. FINDINGS Six studies focused on the relationship between deodorant and antiperspirant use and BC incidence and didn't produce consistent results. Among 13 studies relating Al content in mammary tissues and BC risk, results are not unanimous to validate higher Al content in tumor tissues compared to healthy ones. We detail parameters that could explain this conclusion: the absence of statistical adjustments on BC risk factors in studies, the confusion between deodorant and antiperspirant terms, the non-assessment of global Al exposure, and the focus on Al in mammary tissues whereas a profile of several metals seems more appropriate. The clinical studies are retrospective. They were carried out on small cohorts and without a long follow-up. On the other hand, studies on cell lines have shown the carcinogenic potential of aluminum. Moreover, studies considered BC as a unique group whereas BC is a heterogeneous disease with multiple tumor subtypes determining the tumor aggressiveness. CONCLUSION In light of the precautionary principle and based on the data obtained, it is better to avoid antiperspirants that contain Al. Deodorants without aluminum are not implicated in breast cancer, either clinically or fundamentally.
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Affiliation(s)
| | - Julie Alexandre
- Department of Obstetrics, Centre Médico-chirurgical Et Obstétrical (CMCO), University Hospital of Strasbourg, Schiltigheim, France
| | - Marie-Pierre Chenard
- Service de Pathologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Department of Functional Genomics and Cancer, Institute of Genetics and Cellular and Molecular Biology, University of Strasbourg, Illkirch, France
| | - Carole Mathelin
- University Hospital of Strasbourg, Strasbourg, France; Department of Functional Genomics and Cancer, Institute of Genetics and Cellular and Molecular Biology, University of Strasbourg, Illkirch, France; Surgery Unit, Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, France
| | - Nathalie Reix
- ICube UMR 7357, University of Strasbourg/CNRS, Federation of Translational Medicine of Strasbourg (FMTS), Strasbourg, France; Laboratory of Biochemistry and Molecular Biology, University Hospital of Strasbourg, Strasbourg, France
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2
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Valenzuela-Briseño AR, Arredondo-Damian JG, Rascón-Careaga A, Astiazaran-Garcia H, Gómez-Álvarez A, Esquivel-Gónzalez R, Carrillo-Torres RC, Álvarez-Ramos E, Canett-Romero R, García-Rico L, García-Alegría AM. Hematologic evaluation of peripheral blood in Sprague Dawley rats by chronic exposure to aluminum chloride (AlCl3). Environ Anal Health Toxicol 2022; 37:e2022034-0. [PMID: 36916047 PMCID: PMC10014743 DOI: 10.5620/eaht.2022034] [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: 10/29/2021] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
This study aimed to evaluate whether aluminum chloride (AlCl3) causes hematological changes in the peripheral blood of Sprague-Dawley (SD) rats. Five groups of female SD rats were intragastrically administered with 4 different concentrations of AlCl3 for 5 days a week for a total of 90 days. The aluminum concentration was determined via graphite furnace atomic absorption spectroscopy. Analysis of serum iron-kinetic profiles, blood cytometry outcomes, and blood smears of the blood samples. Scanning electron microscopy (SEM) and Raman spectroscopy were used to search for structural and ultrastructural changes, respectively. Blood aluminum concentration ranged 12.38-16.24 μg/L with no significant difference between experimental treatments. At the AlCl3 concentration of 40 mg Al/kg bw of rats/day, the mean ferritin value in the serum iron kinetic profile was 29.81±6.1 ng/mL, and this value showed a significant difference between experimental treatments. Blood cytometry revealed that there were 6.45-7.11×106 cells/μL erythrocytes, 8.91-9.32×103 cells/μL leukocytes, and 477.2-736.3×103 cells/μL platelets along with a hemoglobin of 37.38-41.93 g/dL and hematocrit level of 37.38-41.93%; the experimental treatments showed no significant differences. Erythrocyte structural analysis using SEM showed no differences between experimental treatments, whereas ultrastructural evaluation using Raman spectroscopy made it possible to identify the following bands: 741, 1123, 1350, 1578, and 1618 cm-1, which were respectively associated with the following vibrational modes and compounds: vibration of the tryptophan ring, asymmetric C-O-C stretching of glucose, C-H curve of tryptophan, C=C stretching of the heme group, and C-N stretching of the heme group, with no significant differences between experimental treatments. Therefore, AlCl3 administration does not induce ultrastructural changes in the erythrocyte membrane. This study revealed that serum ferritin concentration was the only parameter affected by AlCl3 exposure at 40 mg of Al/kg bw of rats/day.
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Affiliation(s)
| | | | - Antonio Rascón-Careaga
- Department of Chemical Biological Sciences, University of Sonora, Hermosillo, Sonora, Mexico
| | - Humberto Astiazaran-Garcia
- Department of Chemical Biological Sciences, University of Sonora, Hermosillo, Sonora, Mexico.,Research Center for Food and Development AC, Government organization in Hermosillo, Mexico
| | - Agustín Gómez-Álvarez
- Department of Chemical Engineering and Metallurgy, University of Sonora, Hermosillo, Sonora, Mexico
| | | | | | | | - Rafael Canett-Romero
- Department of Research and Postgraduate in Food, University of Sonora, Hermosillo, Sonora, Mexico
| | - Leticia García-Rico
- Research Center for Food and Development AC, Government organization in Hermosillo, Mexico
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3
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Darbre PD. Endocrine disrupting chemicals and breast cancer cells. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2021; 92:485-520. [PMID: 34452695 DOI: 10.1016/bs.apha.2021.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Many hundreds of endocrine disrupting chemicals (EDCs) have been measured as entering human breast tissue from a range of environmental sources, and this review focuses on discussion of mechanisms by which such EDCs may be contributing to the globally rising incidence of breast cancer. Many of the distinguishing features of breast cancer may be accounted for by EDC exposure, including, but not limited to, the fact that many EDCs possess estrogenic activity and exposure to estrogen is a main risk factor for breast cancer. Studies of the actions of EDCs in human breast cancer cells are aided by use of the conceptual framework of the hallmarks of cancer, and, acting by a variety of genomic and nongenomic mechanisms, EDCs have now been shown to enable all the hallmarks of cancer to develop in human breast cancer cells. Many studies report that hallmarks can develop at concentrations which are within the range of those measured in human breast tissues, especially when added as mixtures. The varied levels of different EDCs measured in individual breast tissue samples together with the overlapping and complementary mechanisms of action of the EDCs imply that thematic mechanisms will be driven inevitably by different chemical mixtures. Despite the complexity, EDCs do need to now be acknowledged as a risk factor for breast cancer in order for preventative strategies to include reduction in EDC exposure.
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Affiliation(s)
- Philippa D Darbre
- School of Biological Sciences, University of Reading, Reading, United Kingdom.
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4
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Tarnowska M, Briançon S, Resende de Azevedo J, Chevalier Y, Bolzinger MA. Inorganic ions in the skin: Allies or enemies? Int J Pharm 2020; 591:119991. [PMID: 33091552 DOI: 10.1016/j.ijpharm.2020.119991] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 12/11/2022]
Abstract
Skin constitutes a barrier protecting the organism against physical and chemical factors. Therefore, it is constantly exposed to the xenobiotics, including inorganic ions that are ubiquitous in the environment. Some of them play important roles in homeostasis and regulatory functions of the body, also in the skin, while others can be considered dangerous. Many authors have shown that inorganic ions could penetrate inside the skin and possibly induce local effects. In this review, we give an account of the current knowledge on the effects of skin exposure to inorganic ions. Beneficial effects on skin conditions related to the use of thermal spring waters are discussed together with the application of aluminium in underarm hygiene products and silver salts in treatment of difficult wounds. Finally, the potential consequences of dermal exposure to topical sensitizers and harmful heavy ions including radionuclides are discussed.
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Affiliation(s)
- Małgorzata Tarnowska
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, 43 bd 11 Novembre 1918, 69622 Villeurbanne, France
| | - Stéphanie Briançon
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, 43 bd 11 Novembre 1918, 69622 Villeurbanne, France
| | - Jacqueline Resende de Azevedo
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, 43 bd 11 Novembre 1918, 69622 Villeurbanne, France
| | - Yves Chevalier
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, 43 bd 11 Novembre 1918, 69622 Villeurbanne, France
| | - Marie-Alexandrine Bolzinger
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, 43 bd 11 Novembre 1918, 69622 Villeurbanne, France.
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5
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Genomic Instability Is an Early Event in Aluminium-Induced Tumorigenesis. Int J Mol Sci 2020; 21:ijms21239332. [PMID: 33297592 PMCID: PMC7730342 DOI: 10.3390/ijms21239332] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/14/2020] [Accepted: 11/29/2020] [Indexed: 12/05/2022] Open
Abstract
Genomic instability is generally considered as a hallmark of tumorigenesis and a prerequisite condition for malignant transformation. Aluminium salts are suspected environmental carcinogens that transform mammary epithelial cells in vitro through unknown mechanisms. We report here that long-term culture in the presence of aluminium chloride (AlCl3) enables HC11 normal mouse mammary epithelial cells to form tumours and metastases when injected into the syngeneic and immunocompetent BALB/cByJ strain. We demonstrate that AlCl3 rapidly increases chromosomal structural abnormalities in mammary epithelial cells, while we failed to detect direct modulation of specific mRNA pathways. Our observations provide evidence that clastogenic activity—a well-recognized inducer of genomic instability—might account in part for the transforming abilities of aluminium in mammary epithelial cells.
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6
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Farasani A, Darbre PD. Long-term exposure to triclosan increases migration and invasion of human breast epithelial cells in vitro. J Appl Toxicol 2020; 41:1115-1126. [PMID: 33171535 PMCID: PMC8246770 DOI: 10.1002/jat.4097] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/15/2020] [Accepted: 10/15/2020] [Indexed: 01/30/2023]
Abstract
Extensive use of triclosan (2,4,4'-trichloro-2'-hydroxydiphenyl ether) as an antimicrobial agent in household and personal care products has resulted in global exposure of the human population. Its presence in human tissues, including milk, and its oestrogen-disrupting properties raise concerns for an involvement in breast cancer. Because metastatic tumour spread is the main cause of breast cancer mortality, we have investigated the effects of triclosan on cell migration and invasion using three human breast epithelial cell lines and using concentrations comparable with those in human tissues. Long-term exposure to 10-7 M of triclosan resulted in increased migration and invasion as measured by xCELLigence technology for all three cell lines, for the immortalized but nontransformed MCF-10F breast epithelial cells (after 28 weeks), the oestrogen-responsive MCF-7 breast cancer cells (after 17 weeks) and the oestrogen-unresponsive MDA-MB-231 breast cancer cells (after 20 weeks). The effects were therefore not limited to cancerous cells or to oestrogen-responsive cells. This was paralleled in the MCF-10F and MCF-7 (but not MDA-MB-231) cells by a reduction in levels of E-cadherin mRNA as measured by reverse transcription-polymerase chain reaction (RT-PCR) and of E-cadherin protein as measured by western immunoblotting, suggesting a mechanism involving epithelial-to-mesenchymal transition. This adds triclosan to the increasing list of ingredients of personal care products that can not only enter human breast tissue and increase cell proliferation but also influence cell motility. If mixtures of components in household and personal care products contribute to increasing cell migration and invasion, then reduction in exposure could offer a strategy for reducing breast cancer spread.
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Affiliation(s)
- Abdullah Farasani
- Biomedical Research Unit, Medical Research Centre, and Department of Medical Laboratory Technology, College of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
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8
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Roszak J, Smok-Pieniążek A, Jeżak K, Domeradzka-Gajda K, Grobelny J, Tomaszewska E, Ranoszek-Soliwoda K, Celichowski G, Stępnik M. Combined effect of silver nanoparticles and aluminium chloride, butylparaben or diethylphthalate on the malignancy of MDA-MB-231 breast cancer cells and tumor-specific immune responses of human macrophages and monocyte-derived dendritic cells. Toxicol In Vitro 2020; 65:104774. [PMID: 31954849 DOI: 10.1016/j.tiv.2020.104774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 01/14/2020] [Indexed: 12/23/2022]
Abstract
The aim of this study was to assess whether silver nanoparticles (AgNP) or selected cosmetic ingredients may modify functions of various immunocompetent cell populations. To this end, the effect of two AgNP (size of 15 nm or 45 nm), alone and in combination with aluminium chloride, butyl paraben, di-n-butyl phthalate or diethyl phthalate was assessed on: (1) migration and invasion of MDA-MB-231 human breast cancer cells; (2) M1/M2 polarization of phorbol 12-myristate 13-acetate (PMA)-differentiated THP-1 macrophages (M0) and (3) activation/maturation of monocyte-derived dendritic cells (DCs). The results of this study showed that neither any of the test chemicals alone nor the mixtures significantly changed the migration or invasion ability of MDA-MB-231 cells following, both 72-h and 21-day exposure. Analysis of the expression of marker genes for both M1 (IL-1B, CXCL9, TNF) and M2 (DCSIGN, MRC1) polarization revealed that the chemicals/mixtures did not activate M1/M2 differentiation of the M0 macrophages. In addition, no significant changes were observed in the expression of CD86, HLA-DR and CD54 surface markers and phagocytic activity of DCs following 48-h exposure to AgNP alone or in combination with test compounds. Our study suggests that AgNP alone or in combination with tested cosmetic ingredients do not alter function of immunocompetent cells studied.
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Affiliation(s)
- Joanna Roszak
- Toxicology and Carcinogenesis Department, Nofer Institute of Occupational Medicine, 8 St Teresy St., 91-348 Łódź, Poland.
| | - Anna Smok-Pieniążek
- Toxicology and Carcinogenesis Department, Nofer Institute of Occupational Medicine, 8 St Teresy St., 91-348 Łódź, Poland
| | - Karolina Jeżak
- Toxicology and Carcinogenesis Department, Nofer Institute of Occupational Medicine, 8 St Teresy St., 91-348 Łódź, Poland
| | - Katarzyna Domeradzka-Gajda
- Toxicology and Carcinogenesis Department, Nofer Institute of Occupational Medicine, 8 St Teresy St., 91-348 Łódź, Poland
| | - Jarosław Grobelny
- Department of Materials Technology and Chemistry, University of Łódź, 163 Pomorska St, 90-236 Łódź, Poland
| | - Emilia Tomaszewska
- Department of Materials Technology and Chemistry, University of Łódź, 163 Pomorska St, 90-236 Łódź, Poland
| | | | - Grzegorz Celichowski
- Department of Materials Technology and Chemistry, University of Łódź, 163 Pomorska St, 90-236 Łódź, Poland
| | - Maciej Stępnik
- Toxicology and Carcinogenesis Department, Nofer Institute of Occupational Medicine, 8 St Teresy St., 91-348 Łódź, Poland
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9
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Igbokwe IO, Igwenagu E, Igbokwe NA. Aluminium toxicosis: a review of toxic actions and effects. Interdiscip Toxicol 2019; 12:45-70. [PMID: 32206026 PMCID: PMC7071840 DOI: 10.2478/intox-2019-0007] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 08/29/2019] [Indexed: 12/11/2022] Open
Abstract
Aluminium (Al) is frequently accessible to animal and human populations to the extent that intoxications may occur. Intake of Al is by inhalation of aerosols or particles, ingestion of food, water and medicaments, skin contact, vaccination, dialysis and infusions. Toxic actions of Al induce oxidative stress, immunologic alterations, genotoxicity, pro-inflammatory effect, peptide denaturation or transformation, enzymatic dysfunction, metabolic derangement, amyloidogenesis, membrane perturbation, iron dyshomeostasis, apoptosis, necrosis and dysplasia. The pathological conditions associated with Al toxicosis are desquamative interstitial pneumonia, pulmonary alveolar proteinosis, granulomas, granulomatosis and fibrosis, toxic myocarditis, thrombosis and ischemic stroke, granulomatous enteritis, Crohn's disease, inflammatory bowel diseases, anemia, Alzheimer's disease, dementia, sclerosis, autism, macrophagic myofasciitis, osteomalacia, oligospermia and infertility, hepatorenal disease, breast cancer and cyst, pancreatitis, pancreatic necrosis and diabetes mellitus. The review provides a broad overview of Al toxicosis as a background for sustained investigations of the toxicology of Al compounds of public health importance.
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Affiliation(s)
- Ikechukwu Onyebuchi Igbokwe
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Ephraim Igwenagu
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Nanacha Afifi Igbokwe
- Department Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
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Abstract
Parabens now being formally declared as the American Contact Dermatitis Society (non)allergen of the year, the allergologic concerns regarding parabens raised during the past century are no longer a significant issue. The more recent toxicological concerns regarding parabens are more imposing, stemming from the gravity of the noncutaneous adverse health effects for which they have been scrutinized for the past 20 years. These include endocrine activity, carcinogenesis, infertility, spermatogenesis, adipogenesis, perinatal exposure impact, and nonallergologic cutaneous, psychologic, and ecologic effects. To assert that parabens are safe for use as currently used in the cosmetics, food, and pharmaceutical industries, all toxicological end points must be addressed. We seek to achieve perspective through this exercise: perspective for the professional assessing systemic risk of parabens by all routes of exposure. The data reviewed in this article strive to provide a balanced perspective for the consumer hopefully to allay concerns regarding the safety of parabens and facilitate an informed decision-making process. Based on currently available scientific information, claims that parabens are involved in the genesis or propagation of these controversial and important health problems are premature. Haste to remove parabens from consumer products could result in their substitution with alternative, less proven, and potentially unsafe alternatives, especially given the compelling data supporting the lack of significant dermal toxicity of this important group of preservatives.
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Lappano R, Malaguarnera R, Belfiore A, Maggiolini M. Recent advances on the stimulatory effects of metals in breast cancer. Mol Cell Endocrinol 2017; 457:49-56. [PMID: 27765682 DOI: 10.1016/j.mce.2016.10.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 10/12/2016] [Accepted: 10/15/2016] [Indexed: 01/08/2023]
Abstract
Certain environmental chemicals may accumulate in human serum and tissues eliciting estrogenic and/or carcinogenic effects. Therefore, there is heightened interest in determining whether environmental chemicals may increase the risk for endocrine-related tumors like breast cancer. For instance, metals as cadmium, zinc, copper, iron, nickel and aluminum have been shown to mimic estrogen action. Moreover, the exposure to these chemicals has been reported to stimulate diverse malignancies including breast cancer, which is the most common tumor in women worldwide. In this review, we summarize the epidemiologic and experimental evidence regarding the association between the exposure to some trace elements and breast cancer risk. We also address recent insights on the molecular mechanisms involved by metals in breast tumorigenesis.
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Affiliation(s)
- Rosamaria Lappano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy.
| | - Roberta Malaguarnera
- Endocrinology, Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Antonino Belfiore
- Endocrinology, Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Marcello Maggiolini
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
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12
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Alamer M, Darbre PD. Effects of exposure to six chemical ultraviolet filters commonly used in personal care products on motility of MCF-7 and MDA-MB-231 human breast cancer cells in vitro. J Appl Toxicol 2017; 38:148-159. [PMID: 28990245 DOI: 10.1002/jat.3525] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/17/2017] [Accepted: 08/17/2017] [Indexed: 12/15/2022]
Abstract
Benzophenone (BP)-1, BP-2, BP-3, octylmethoxycinnamate (OMC), 4-methylbenzilidenecamphor and homosalate are added to personal care products to absorb ultraviolet light. Their presence in human milk and their oestrogenic activity suggests a potential to influence breast cancer development. As metastatic tumour spread is the main cause of breast cancer mortality, we have investigated the effects of these compounds on migration and invasion of human breast cancer cell lines. Increased motility of oestrogen-responsive MCF-7 human breast cancer cells was observed after long-term exposure (>20 weeks) to each of the six compounds at ≥10-7 m concentrations using three independent assay systems (scratch assay, live cell imaging, xCELLigence technology) and increased invasive activity was observed through matrigel using the xCELLigence system. Increased motility of oestrogen-unresponsive MDA-MB-231 human breast cancer cells was observed after 15 weeks of exposure to each of the six compounds by live cell imaging and xCELLigence technology, implying the increased migratory activity was not confined to oestrogen-responsive cells. Molecular mechanisms varied between compounds and cell lines. Using MCF-7 cells, reduction in E-cadherin was observed following 24 weeks' exposure to 10-5 m BP-1 and 10-5 m homosalate, and reduction in β-catenin was noted following 24 weeks' exposure to 10-5 m OMC. Using MDA-MB-231 cells, increased levels of matrix metalloproteinase 2 were observed after 15 weeks exposure to 10-7 m OMC and 10-7 m 4-methylbenzilidenecamphor. Although molecular mechanisms differ, these results demonstrate that exposure to any of these six compounds can increase migration and invasion of human breast cancer cells.
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Affiliation(s)
- Maha Alamer
- School of Biological Sciences, University of Reading, Reading, RG6 6UB, UK
| | - Philippa D Darbre
- School of Biological Sciences, University of Reading, Reading, RG6 6UB, UK
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13
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AbdelMageed MA, Foltopoulou P, McNiel EA. Feline vaccine-associated sarcomagenesis: Is there an inflammation-independent role for aluminium? Vet Comp Oncol 2017; 16:E130-E143. [PMID: 28960714 DOI: 10.1111/vco.12358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 08/20/2017] [Accepted: 08/21/2017] [Indexed: 12/14/2022]
Abstract
Aluminium has been found in feline vaccine-associated sarcomas. In this study, we investigated the potential for aluminium to contribute directly to tumourigenesis. Our results indicated that an aluminium hydroxide adjuvant preparation was cytotoxic and mutagenic in human-Chinese hamster ovary (CHO) hybrid cells in vitro. Moreover, CHO cells deficient in DNA double strand break (DSB), but not single-strand break (SSB), repair, were particularly sensitive to aluminium exposure compared with repair proficient cells, suggesting that aluminium is associated with DSBs. In contrast to CHO cells, primary feline skin fibroblasts were resistant to the cytotoxic effects of aluminium compounds and exposure to an aluminium chloride salt promoted cell growth and cell cycle progression at concentrations much less than those measured in particular feline rabies vaccines. These findings suggest that aluminium exposure may contribute, theoretically, to both initiation and promotion of tumours in the absence of an inflammatory response.
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Affiliation(s)
- M A AbdelMageed
- Cummings School of Veterinary Medicine, Tufts University, Grafton, Massachusetts.,Department of Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - P Foltopoulou
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, Massachusetts
| | - E A McNiel
- Cummings School of Veterinary Medicine, Tufts University, Grafton, Massachusetts.,Molecular Oncology Research Institute, Tufts Medical Center, Boston, Massachusetts
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Türker Şener L, Albeniz G, Dinç B, Albeniz I. iCELLigence real-time cell analysis system for examining the cytotoxicity of drugs to cancer cell lines. Exp Ther Med 2017; 14:1866-1870. [PMID: 28962095 PMCID: PMC5609197 DOI: 10.3892/etm.2017.4781] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 03/23/2017] [Indexed: 12/20/2022] Open
Abstract
The recently developed iCELLigence™ real-time cell analyzer (RTCA) can be used for the label-free real-time monitoring of cancer cell proliferation, viability, invasion and cytotoxicity. The RTCA system uses 16-well microtiter plates with a gold microelectrode biosensor array that measures impedance when cells adhere to the microelectrodes causing an alternating current. By measuring the electric field generated in this process, the RTCA system can be used for the analysis of cell proliferation, viability, morphology and migration. The present review aimed to summarize the working method of the RTCA system, in addition to discussing the research performed using the system for various applications, including cancer drug discovery via measuring cytotoxicity.
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Affiliation(s)
- Leyla Türker Şener
- Department of Biophysics, Faculty of Medicine, Istanbul University, 34093 Istanbul, Turkey
| | - Gürcan Albeniz
- Department of General Surgery, Cerrahpaşa Faculty of Medicine, Istanbul University, 34096 Istanbul, Turkey
| | - Bircan Dinç
- Department of Basic Sciences, School of Engineering and Architecture, Istanbul Kemerburgaz University, 34394 Istanbul, Turkey
| | - Işil Albeniz
- Department of Biophysics, Faculty of Medicine, Istanbul University, 34093 Istanbul, Turkey
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Mandriota SJ. A Case-control Study Adds a New Piece to the Aluminium/Breast Cancer Puzzle. EBioMedicine 2017; 22:22-23. [PMID: 28693981 PMCID: PMC5552203 DOI: 10.1016/j.ebiom.2017.06.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 06/26/2017] [Indexed: 11/17/2022] Open
Affiliation(s)
- Stefano J Mandriota
- Laboratoire de Cancérogenèse Environnementale, Fondation des Grangettes, Chêne-Bougeries, Switzerland.
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Mandriota SJ, Tenan M, Ferrari P, Sappino AP. Aluminium chloride promotes tumorigenesis and metastasis in normal murine mammary gland epithelial cells. Int J Cancer 2016; 139:2781-2790. [PMID: 27541736 PMCID: PMC5095782 DOI: 10.1002/ijc.30393] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 06/30/2016] [Accepted: 07/26/2016] [Indexed: 02/02/2023]
Abstract
Aluminium salts, present in many industrial products of frequent use like antiperspirants, anti‐acid drugs, food additives and vaccines, have been incriminated in contributing to the rise in breast cancer incidence in Western societies. However, current experimental evidence supporting this hypothesis is limited. For example, no experimental evidence that aluminium promotes tumorigenesis in cultured mammary epithelial cells exists. We report here that long‐term exposure to concentrations of aluminium—in the form of aluminium chloride (AlCl3)—in the range of those measured in the human breast, transform normal murine mammary gland (NMuMG) epithelial cells in vitro as revealed by the soft agar assay. Subcutaneous injections into three different mouse strains with decreasing immunodeficiency, namely, NOD SCID gamma (NSG), NOD SCID or nude mice, revealed that untreated NMuMG cells form tumors and metastasize, to a limited extent, in the highly immunodeficient and natural killer (NK) cell deficient NSG strain, but not in the less permissive and NK cell competent NOD SCID or nude strains. In contrast, NMuMG cells transformed in vitro by AlCl3 form large tumors and metastasize in all three mouse models. These effects correlate with a mutagenic activity of AlCl3. Our findings demonstrate for the first time that concentrations of aluminium in the range of those measured in the human breast fully transform cultured mammary epithelial cells, thus enabling them to form tumors and metastasize in well‐established mouse cancer models. Our observations provide experimental evidence that aluminium salts could be environmental breast carcinogens. What's new? Aluminium salts, present in many industrial products of frequent use like antiperspirants, anti‐acid drugs, food additives, and vaccines, have been incriminated in contributing to the rise in breast cancer incidence in Western societies. However, current experimental evidence supporting this hypothesis is limited. Here, the authors report that long‐term exposure to concentrations of aluminium in the range of those measured in the human breast enables normal murine mammary gland (NMuMG) epithelial cells to form tumors and metastasis in well‐established mouse cancer models. The observations indicate that aluminium salts could be environmental breast carcinogens.
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Affiliation(s)
- Stefano J Mandriota
- Center of Oncology, Faculty of Medicine, University of Geneva, Switzerland. .,Laboratoire de cancérogenèse environnementale, Fondation des Grangettes, Chêne-Bougeries, Switzerland.
| | - Mirna Tenan
- Laboratoire de cancérogenèse environnementale, Fondation des Grangettes, Chêne-Bougeries, Switzerland
| | - Paolo Ferrari
- Laboratoire de cancérogenèse environnementale, Fondation des Grangettes, Chêne-Bougeries, Switzerland
| | - André-Pascal Sappino
- Center of Oncology, Faculty of Medicine, University of Geneva, Switzerland.,Laboratoire de cancérogenèse environnementale, Fondation des Grangettes, Chêne-Bougeries, Switzerland.,Clinique des Grangettes, Chêne-Bougeries, Switzerland
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Darbre PD. Aluminium and the human breast. Morphologie 2016; 100:65-74. [PMID: 26997127 DOI: 10.1016/j.morpho.2016.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 01/21/2016] [Accepted: 02/09/2016] [Indexed: 06/05/2023]
Abstract
The human population is exposed to aluminium (Al) from diet, antacids and vaccine adjuvants, but frequent application of Al-based salts to the underarm as antiperspirant adds a high additional exposure directly to the local area of the human breast. Coincidentally the upper outer quadrant of the breast is where there is also a disproportionately high incidence of breast cysts and breast cancer. Al has been measured in human breast tissues/fluids at higher levels than in blood, and experimental evidence suggests that at physiologically relevant concentrations, Al can adversely impact on human breast epithelial cell biology. Gross cystic breast disease is the most common benign disorder of the breast and evidence is presented that Al may be a causative factor in formation of breast cysts. Evidence is also reviewed that Al can enable the development of multiple hallmarks associated with cancer in breast cells, in particular that it can cause genomic instability and inappropriate proliferation in human breast epithelial cells, and can increase migration and invasion of human breast cancer cells. In addition, Al is a metalloestrogen and oestrogen is a risk factor for breast cancer known to influence multiple hallmarks. The microenvironment is established as another determinant of breast cancer development and Al has been shown to cause adverse alterations to the breast microenvironment. If current usage patterns of Al-based antiperspirant salts contribute to causation of breast cysts and breast cancer, then reduction in exposure would offer a strategy for prevention, and regulatory review is now justified.
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Affiliation(s)
- P D Darbre
- School of Biological Sciences, University of Reading, Hopkins Building, Reading RG6 6UB, UK.
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