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Ardenkjær-Skinnerup J, Saar D, Petersen PSS, Pedersen M, Svingen T, Kragelund BB, Hadrup N, Ravn-Haren G, Emanuelli B, Brown KA, Vogel U. PPARγ antagonists induce aromatase transcription in adipose tissue cultures. Biochem Pharmacol 2024; 222:116095. [PMID: 38423186 DOI: 10.1016/j.bcp.2024.116095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/11/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
Aromatase is the rate-limiting enzyme in the biosynthesis of estrogens and a key risk factor for hormone receptor-positive breast cancer. In postmenopausal women, estrogens synthesized in adipose tissue promotes the growth of estrogen receptor positive breast cancers. Activation of peroxisome proliferator-activated receptor gamma (PPARγ) in adipose stromal cells (ASCs) leads to decreased expression of aromatase and differentiation of ASCs into adipocytes. Environmental chemicals can act as antagonists of PPARγ and disrupt its function. This study aimed to test the hypothesis that PPARγ antagonists can promote breast cancer by stimulating aromatase expression in human adipose tissue. Primary cells and explants from human adipose tissue as well as A41hWAT, C3H10T1/2, and H295R cell lines were used to investigate PPARγ antagonist-stimulated effects on adipogenesis, aromatase expression, and estrogen biosynthesis. Selected antagonists inhibited adipocyte differentiation, preventing the adipogenesis-associated downregulation of aromatase. NMR spectroscopy confirmed direct interaction between the potent antagonist DEHPA and PPARγ, inhibiting agonist binding. Short-term exposure of ASCs to PPARγ antagonists upregulated aromatase only in differentiated cells, and a similar effect could be observed in human breast adipose tissue explants. Overexpression of PPARG with or without agonist treatment reduced aromatase expression in ASCs. The data suggest that environmental PPARγ antagonists regulate aromatase expression in adipose tissue through two mechanisms. The first is indirect and involves inhibition of adipogenesis, while the second occurs more acutely.
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Affiliation(s)
- Jacob Ardenkjær-Skinnerup
- The National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark; The National Research Centre for the Working Environment, Copenhagen Ø, Denmark
| | - Daniel Saar
- REPIN and Structural Biology and NMR Laboratory, Department of Biology, University of Copenhagen, Copenhagen N, Denmark
| | - Patricia S S Petersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen N, Denmark
| | - Mikael Pedersen
- The National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Terje Svingen
- The National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Birthe B Kragelund
- REPIN and Structural Biology and NMR Laboratory, Department of Biology, University of Copenhagen, Copenhagen N, Denmark
| | - Niels Hadrup
- The National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark; The National Research Centre for the Working Environment, Copenhagen Ø, Denmark
| | - Gitte Ravn-Haren
- The National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Brice Emanuelli
- The Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen N, Denmark
| | - Kristy A Brown
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA; Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS, USA.
| | - Ulla Vogel
- The National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark; The National Research Centre for the Working Environment, Copenhagen Ø, Denmark.
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Yoon JS, Lee HJ, Sim DY, Im E, Park JE, Park WY, Koo JI, Shim BS, Kim SH. Moracin D induces apoptosis in prostate cancer cells via activation of PPAR gamma/PKC delta and inhibition of PKC alpha. Phytother Res 2021; 35:6944-6953. [PMID: 34709688 DOI: 10.1002/ptr.7313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/02/2021] [Accepted: 10/07/2021] [Indexed: 11/11/2022]
Abstract
Herein, apoptotic mechanism of Moracin D was explored in prostate cancer cells in association with peroxisome proliferator-activated receptor gamma (PPAR-γ)-related signaling involved in lipid metabolism. Moracin D augmented cytotoxicity and sub G1 population in PC3 and DU145 prostate cancer cells, while DU145 cells were more susceptible to Moracin D than PC3 cells. Moracin D attenuated the expression of caspase-3, poly (ADP-ribose) polymerase (PARP), B-cell lymphoma 2 (Bcl-2), and B-cell lymphoma-extra-large (Bcl-xL) in DU145 cells. Consistently, Moracin D significantly augmented the number of terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)-positive cells in DU145 cells. Interestingly, Moracin D activated PPAR-γ and phospho-protein kinase C delta (p-PKC-δ) and inhibited phospho-protein kinase C alpha (p-PKC-α) in DU145 cells. Furthermore, STRING bioinformatic analysis reveals that PPAR-γ interacts with nuclear factor-κB (NF-κB) that binds to PKC-α/PKC-δ or protein kinase B (AKT) or extracellular signal-regulated kinase (ERK). Indeed, Moracin D decreased phosphorylation of NF-κB, ERK, and AKT in DU145 cells. Conversely, PPAR-γ inhibitor GW9662 reduced the apoptotic ability of Moracin D to activate caspase 3 and PARP in DU145 cells. Taken together, these findings provide a novel insight that activation of PPAR-γ/p-PKC-δ and inhibition of p-PKC-α are critically involved in Moracin D-induced apoptosis in DU145 prostate cancer cells.
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Affiliation(s)
- Jae Seok Yoon
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyo-Jung Lee
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Deok Yong Sim
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Eunji Im
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Ji Eon Park
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Woon Yi Park
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Ja Il Koo
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Bum Sang Shim
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sung-Hoon Kim
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
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Kobayashi H, Kimura M, Maruyama S, Nagayasu M, Imanaka S. Revisiting estrogen-dependent signaling pathways in endometriosis: Potential targets for non-hormonal therapeutics. Eur J Obstet Gynecol Reprod Biol 2020; 258:103-110. [PMID: 33421806 DOI: 10.1016/j.ejogrb.2020.12.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 12/21/2020] [Indexed: 12/22/2022]
Abstract
Endometriosis is an estrogen-dependent gynecologic disease. Endometriotic cells survive in oxidative stress and hypoxic environments. The aim of this review is to reconsider new therapeutic strategies for endometriosis by focusing on estrogen signaling, ROS production and scavenging, and mitochondrial metabolism. Each keyword alone or in combination was used to search from PubMed and Embase by applying the filters of the title and the publication years between January 2000 and May 2020. Abnormal epigenetic marks of estrogen receptors (ERs) in endometriosis cause overexpression of ERβ, progesterone resistance, inflammation, anti-apoptosis, and mitochondrial metabolic modification. In addition to hormonal action, estrogen is involved in various functions such as mitochondrial biosynthesis and energy metabolism. Estrogen works with its downstream target genes to modulate mitochondrial gene expression, regulate ROS production, and affect mitochondrial biology, including ATP production, antioxidant defenses, mitochondrial biosynthesis, quality control, and energy-transducing capacity. Endometriosis can shift mitochondrial metabolism from oxidative phosphorylation to aerobic glycolysis. This metabolic conversion suppresses ROS production and thus activates the survival signal of endometriotic cells. Therefore, molecules associated with aerobic glycolysis and mitochondrial metabolism are considered therapeutic targets for endometriosis. In conclusion, estrogen downstream target genes involved in mitochondrial metabolic biosynthesis may be potential targets for non-hormonal treatment of endometriosis.
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Affiliation(s)
- Hiroshi Kobayashi
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Japan; Ms.Clinic MayOne, Kashihara, Japan.
| | - Mai Kimura
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Japan
| | - Sachiyo Maruyama
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Japan
| | - Mika Nagayasu
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Japan
| | - Shogo Imanaka
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Japan; Ms.Clinic MayOne, Kashihara, Japan
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Zhang S, Zhuang L, Liu Q, Yu X, Min Q, Chen M, Chen Q. Rosiglitazone affects the progression of surgically‑induced endometriosis in a rat model. Mol Med Rep 2020; 23:35. [PMID: 33179107 PMCID: PMC7684857 DOI: 10.3892/mmr.2020.11673] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/30/2020] [Indexed: 12/16/2022] Open
Abstract
Endometriosis is closely associated with inflammatory reactions and angiogenesis. Whether PPARγ is a target for the treatment of endometriosis remains unknown. The present study was designed to investigate the impact of a PPARγ agonist (rosiglitazone, RSG) on endometriosis in a rat model and to identify the underlying mechanism. The endometriosis model was established in rats. The pathological state of the endometrium was examined using hematoxylin‑eosin staining. The microstructures of interest were visualized using electron microscopy. Western blot analysis and reverse transcription‑quantitative polymerase chain reaction were used to detect PPARγ and MAT2A expression. VEGF and caspase‑3 expression were investigated using immunohistochemistry. Pathological analysis revealed transparent and red nodules in the model group, and that vasoganglions were present all over the nodules. Endometrial epithelial hyperplasia was observed in the model group, and the shape was columnar. Increased interstitial cell numbers, with compact structure and abundant blood supply, were detected in the model group. Compared with the model group, incomplete epithelial structures with sparse interstitial cells and loose structure were observed in the pathological images from RSG treatment groups. Numerous inflammatory cells and poor blood supply were observed in the endometrial tissues, and the gland was filled mostly with vacuolar cells. Electron microscopy revealed that the tissue structure was integrated. Many vacuoles were formed within the endometrial tissue and the classical morphological changes of apoptotic cells were observed in RSG‑treated groups. Caspase‑3 and PPARγ expression increased and expression of VEGF and MAT2A decreased in RSG‑treated groups. Taken together, these results revealed that RSG impacts the development and progression of endometriosis likely by inhibiting angiogenesis and inducing apoptosis.
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Affiliation(s)
- Shun Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Lingling Zhuang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qian Liu
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xiaolin Yu
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qinghua Min
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Minjie Chen
- Department of Clinical Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qi Chen
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Huang H, Wang Q, He X, Wu Y, Xu C. Association between polyfluoroalkyl chemical concentrations and leucocyte telomere length in US adults. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 653:547-553. [PMID: 30414584 DOI: 10.1016/j.scitotenv.2018.10.400] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/29/2018] [Accepted: 10/29/2018] [Indexed: 05/22/2023]
Abstract
Exposure to some environmental chemicals is reportedly associated with the leucocyte telomere length (LTL), but the effects of the non-occupational exposure to polyfluoroalkyl chemical (PFCs) on the LTL are not well understood. Using data from 773 participants in the National Health and Nutrition Examination Survey (NHANES) conducted in 1999-2000, we analysed the association between blood PFC concentrations and LTL. Coefficients (betas) and 95% confidence intervals (CIs) for the blood PFC concentrations in association with the LTL were estimated using multivariate linear regression models after adjustment for age, gender, race, body mass index (BMI), poverty income ratio, educational level, white blood cell count, C-reactive protein and other PFCs. The results identified a strong positive association between the blood perfluorooctane sulfonic acid (PFOS) concentration and LTL in adults, and no associations were found between the LTL and other PFCs. In the linear regression models, each increment of one standard deviation (SD) in the base-10-logarithm-transformed PFOS concentration was associated with a 21-bp increase in the LTL in the fully adjusted model (P = 0.033). Moreover, serum PFOS was associated with the LTL mainly in females and individuals aged 40-50, as demonstrated by stratified analyses. These results provide epidemiological evidence showing that environment-related levels of serum PFOS are positively associated with the LTL in adults.
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Affiliation(s)
- Haobin Huang
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Qinxue Wang
- Department of Geriatric Intensive Care Unit, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Xiaowei He
- Department of Endocrinology, Geriatric Hospital of Nanjing Medical University, Jiangsu Province Geriatric Institute, Jiangsu Province Official Hospital, Nanjing 210024, Jiangsu Province, China
| | - Yanhu Wu
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China.
| | - Cheng Xu
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, Jiangsu Province, China.
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Does telomerase activity have an effect on infertility in patients with endometriosis? Eur J Obstet Gynecol Reprod Biol 2017; 213:116-122. [PMID: 28482242 DOI: 10.1016/j.ejogrb.2017.04.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 04/07/2017] [Accepted: 04/13/2017] [Indexed: 01/24/2023]
Abstract
OBJECTIVE This study aimed to investigate the role of telomerase activity in the development of endometriosis-related infertility by evaluation of the serum telomerase in eutopic and ectopic endometrial tissue. STUDY DESIGN Eutopic endometrium, cystic wall/ovarian cortex, and venous blood were assessed in forty-seven patients. The following groups of patients were identified: females with endometriosis requiring surgical intervention and healthy control females. Patients with histopathologically confirmed endometriosis were further subdivided in the infertile (n=14) and fertile (n=17) groups. Patients who underwent hysterectomy and oophorectomy for benign gynecological conditions were enrolled in the healthy control group (n=16). Telomerase activity was evaluated with three-group, endometriosis-based and fertility-based designs. Analyses were performed regardless the menstrual cycle phase (Phase G), in proliferative (Phase P) (n=22) and secretory phases (Phase S) (n=25). Telomeric Repeat Amplification Protocol PCR was applied for telomerase activity assessment. All statistical analyses were performed with STATA 14.2, GraphPad Prisma 7.01. RESULTS In analyses of the eutopic endometrium, with three-group design, a significant difference was not found in Phase G and P (p=0.58 and p=0.33, respectively). However, a statistical difference was shown in Phase S (p=0.008). A significant difference was not established in Phase G, P and S of endometriosis-based design (p=0.35, p=1.0, p=0.13, respectively). No difference was detected in Phase G and P of fertility-based design (p=0.66 and p=0.14, respectively), whereas in secretory phase difference was approved (p=0,049). Telomerase activity was not established in ectopic endometrium and in serum assessment. CONCLUSIONS Telomerase activity is useless as a biomarker in peripheric blood analysis. The absence of activity in cystic wall approves the high differentiation of endometriosis tissue, what is the possible reason of low malignancy risk. The high rate of telomerase activity in the eutopic endometrium of the infertile group may be considered as a cause of endometriosis-related infertility.
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Bedaiwy MA, Alfaraj S, Yong P, Casper R. New developments in the medical treatment of endometriosis. Fertil Steril 2017; 107:555-565. [PMID: 28139238 DOI: 10.1016/j.fertnstert.2016.12.025] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/21/2016] [Accepted: 12/21/2016] [Indexed: 12/24/2022]
Abstract
Endometriosis affects 1 in 10 women of reproductive-age. The current treatments are surgical and hormonal but have limitations, including the risk of recurrence, side effects, contraceptive action for women who desire pregnancy, and cost. New treatments include gonadotropin-releasing hormone analogues, selective progesterone (or estrogen) receptor modulators, aromatase inhibitors, immunomodulators, and antiangiogenic agents. Further research is needed into central sensitization, local neurogenesis, and the genetics of endometriosis to identify additional treatment targets. A wider range of medical options allows for the possibility of precision health and a more personalized treatment approach for women with endometriosis.
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Affiliation(s)
- Mohamed A Bedaiwy
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, British Columbia.
| | - Sukinah Alfaraj
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, British Columbia
| | - Paul Yong
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, British Columbia
| | - Robert Casper
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
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Guo F, Ren X, Dong Y, Hu X, Xu D, Zhou H, Meng F, Tian W, Zhao Y. Constitutive expression of PPARγ inhibits proliferation and migration of gastric cancer cells and down-regulates Wnt/β-Catenin signaling pathway downstream target genes TERT and ENAH. Gene 2016; 584:31-37. [DOI: 10.1016/j.gene.2016.03.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 02/25/2016] [Accepted: 03/03/2016] [Indexed: 02/06/2023]
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Engström W, Darbre P, Eriksson S, Gulliver L, Hultman T, Karamouzis MV, Klaunig JE, Mehta R, Moorwood K, Sanderson T, Sone H, Vadgama P, Wagemaker G, Ward A, Singh N, Al-Mulla F, Al-Temaimi R, Amedei A, Colacci AM, Vaccari M, Mondello C, Scovassi AI, Raju J, Hamid RA, Memeo L, Forte S, Roy R, Woodrick J, Salem HK, Ryan EP, Brown DG, Bisson WH. The potential for chemical mixtures from the environment to enable the cancer hallmark of sustained proliferative signalling. Carcinogenesis 2015; 36 Suppl 1:S38-60. [PMID: 26106143 DOI: 10.1093/carcin/bgv030] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The aim of this work is to review current knowledge relating the established cancer hallmark, sustained cell proliferation to the existence of chemicals present as low dose mixtures in the environment. Normal cell proliferation is under tight control, i.e. cells respond to a signal to proliferate, and although most cells continue to proliferate into adult life, the multiplication ceases once the stimulatory signal disappears or if the cells are exposed to growth inhibitory signals. Under such circumstances, normal cells remain quiescent until they are stimulated to resume further proliferation. In contrast, tumour cells are unable to halt proliferation, either when subjected to growth inhibitory signals or in the absence of growth stimulatory signals. Environmental chemicals with carcinogenic potential may cause sustained cell proliferation by interfering with some cell proliferation control mechanisms committing cells to an indefinite proliferative span.
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Affiliation(s)
- Wilhelm Engström
- Department of Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, PO Box 7028, 75007 Uppsala, Sweden,
| | - Philippa Darbre
- School of Biological Sciences, University of Reading, Whiteknights, Reading RG6 6UB, UK
| | - Staffan Eriksson
- Department of Biochemistry, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Box 575, 75123 Uppsala, Sweden
| | - Linda Gulliver
- Faculty of Medicine, University of Otago, PO Box 913, Dunedin 9050, New Zealand
| | - Tove Hultman
- Department of Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, PO Box 7028, 75007 Uppsala, Sweden, School of Biological Sciences, University of Reading, Whiteknights, Reading RG6 6UB, UK
| | - Michalis V Karamouzis
- Department of Biological Chemistry Medical School, Institute of Molecular Medicine and Biomedical Research, University of Athens, Marasli 3, Kolonaki, Athens 10676, Greece
| | - James E Klaunig
- Department of Environmental Health, School of Public Health, Indiana University Bloomington , 1025 E. 7th Street, Suite 111, Bloomington, IN 47405, USA
| | - Rekha Mehta
- Regulatory Toxicology Research Division, Bureau of Chemical Safety, Food Directorate, HPFB, Health Canada, 251 Sir F.G. Banting Driveway, AL # 2202C, Tunney's Pasture, Ottawa, Ontario K1A 0K9, Canada
| | - Kim Moorwood
- Department of Biochemistry and Biology, University of Bath , Claverton Down, Bath BA2 7AY, UK
| | - Thomas Sanderson
- INRS-Institut Armand-Frappier, 531 boulevard des Prairies, Laval, Quebec H7V 1B7, Canada
| | - Hideko Sone
- Environmental Exposure Research Section, Center for Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibraki 3058506, Japan
| | - Pankaj Vadgama
- IRC in Biomedical Materials, School of Engineering & Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Gerard Wagemaker
- Center for Stem Cell Research and Development, Hacettepe University, Ankara 06100, Turkey
| | - Andrew Ward
- Department of Biochemistry and Biology, University of Bath , Claverton Down, Bath BA2 7AY, UK
| | - Neetu Singh
- Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India
| | - Fahd Al-Mulla
- Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | | | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze 50134, Italy
| | - Anna Maria Colacci
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Monica Vaccari
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Chiara Mondello
- Institute of Molecular Genetics, National Research Council, Pavia 27100, Italy
| | - A Ivana Scovassi
- Institute of Molecular Genetics, National Research Council, Pavia 27100, Italy
| | - Jayadev Raju
- Regulatoty Toxicology Research Division, Bureau of Chemical Safety, Food Directorate, HPFB, Health Canada, Ottawa, Ontario K1A0K9, Canada
| | - Roslida A Hamid
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Lorenzo Memeo
- Mediterranean Institute of Oncology, Viagrande 95029, Italy
| | - Stefano Forte
- Mediterranean Institute of Oncology, Viagrande 95029, Italy
| | - Rabindra Roy
- Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Jordan Woodrick
- Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Hosni K Salem
- Urology Dept. kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Sciences, Colorado State University//Colorado School of Public Health, Fort Collins CO 80523-1680, USA and
| | - Dustin G Brown
- Department of Environmental and Radiological Sciences, Colorado State University//Colorado School of Public Health, Fort Collins CO 80523-1680, USA and
| | - William H Bisson
- Environmental and Molecular Toxicology, Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
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