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Khan NG, Tungekar B, Adiga D, Chakrabarty S, Rai PS, Kabekkodu SP. Alterations induced by Bisphenol A on cellular organelles and potential relevance on human health. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2023; 1870:119505. [PMID: 37286138 DOI: 10.1016/j.bbamcr.2023.119505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/29/2023] [Accepted: 05/26/2023] [Indexed: 06/09/2023]
Abstract
Bisphenol A (BPA) is a chemical partially soluble in water and exists in a solid state. Its structural similarity with estrogen makes it an endocrine-disrupting chemical. BPA can disrupt signaling pathways at very low doses and may cause organellar stress. According to in vitro and in vivo studies, BPA interacts with various cell surface receptors to cause organellar stress, producing free radicals, cellular toxicity, structural changes, DNA damage, mitochondrial dysfunction, cytoskeleton remodeling, centriole duplication, and aberrant changes in several cell signaling pathways. The current review summarizes the impact of BPA exposure on the structural and functional aspects of subcellular components of cells such as the nucleus, mitochondria, endoplasmic reticulum, lysosome, ribosome, Golgi apparatus, and microtubules and its consequent impact on human health.
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Affiliation(s)
- Nadeem G Khan
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Bushra Tungekar
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Divya Adiga
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Sanjiban Chakrabarty
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India; Center for DNA Repair and Genome Stability (CDRGS), Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Padmalatha S Rai
- Department of Biotechnology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India; Center for DNA Repair and Genome Stability (CDRGS), Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
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2
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Adegoke EO, Rahman MS, Amjad S, Pang WK, Ryu DY, Park YJ, Pang MG. Environmentally relevant doses of endocrine disrupting chemicals affect male fertility by interfering with sertoli cell glucose metabolism in mice. CHEMOSPHERE 2023; 337:139277. [PMID: 37364641 DOI: 10.1016/j.chemosphere.2023.139277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 06/02/2023] [Accepted: 06/18/2023] [Indexed: 06/28/2023]
Abstract
The growing global deterioration in several aspects of human health has been partly attributed to hazardous effects of endocrine-disrupting chemicals (EDCs) exposure. Therefore, experts and government regulatory agencies have consistently advocated for studies on the combined effects of EDCs that model human exposure to multiple environmental chemicals in real life. Here, we investigated how low concentrations of bisphenol A (BPA), and phthalates compounds affect the Sertoli cell glucose uptake/lactate production in the testis and male fertility. An EDC mixture containing a detected amount of each chemical compound in humans, called daily exposure (DE), and DE increased in magnitude by 25 (DE25), 250 (DE250), and 2500 (DE2500), and corn oil (control) were administered for six weeks to male mice. We found that DE activated estrogen receptor beta (Erβ) and glucose-regulated protein 78 (Grp 78) and disrupted the estradiol (E2) balance. In addition, DE25, DE250, and DE2500 doses of the EDC mixture via binding with Sertoli cells' estrogen receptors (ERs) inhibited the glucose uptake and lactate production processes by downregulating glucose transporters (GLUTs) and glycolytic enzymes. As a result, endoplasmic reticulum stress (ERS), marked by unfolded protein response (UPR) activation, was induced. The accompanying upregulation of activating transcription factor 4 (ATF4), inositol requiring enzyme-1 (IRE1), C/EBP homologous protein (CHOP), and mitogen-activated protein kinase (MAPK) signaling promoted antioxidant depletion, testicular cell apoptosis, abnormal regulation of the blood-testis barrier, and decreased sperm count. Therefore, these findings suggest that human and wildlife exposure to multiple environmental chemicals can produce a wide range of reproductive health complications in male mammals.
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Affiliation(s)
- Elikanah Olusayo Adegoke
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Md Saidur Rahman
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Shehreen Amjad
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Won-Ki Pang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Do-Yeal Ryu
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Yoo-Jin Park
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Mung-Geol Pang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea.
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Mondal A, Burchat N, Sampath H. Palmitate exacerbates bisphenol A toxicity via induction of ER stress and mitochondrial dysfunction. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:158816. [PMID: 32976987 PMCID: PMC7686068 DOI: 10.1016/j.bbalip.2020.158816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/14/2020] [Accepted: 09/18/2020] [Indexed: 12/15/2022]
Abstract
Combined exposure to dietary nutrients and environmental chemicals may elicit significantly different physiological effects than single exposures. Exposure to dietary saturated fats and environmental toxins is a physiologically-significant dual exposure that is particularly associated with lower socioeconomic status, potentially placing these individuals at heightened risk of xenobiotic toxicities. However, no prior studies have examined interactions between specific lipids and environmental xenobiotics in modulating cellular health. Using primary mouse embryonic fibroblasts, we have discovered that prior exposure to the saturated fatty acid, palmitate, exacerbates cellular toxicity associated with the industrial plasticizer, bisphenol A (BPA). Cell death upon BPA exposure following palmitate pre-treatment was greater than that occurring with either exposure alone. Mechanistically, cell death was preceded by increased endoplasmic reticulum stress and loss of mitochondrial membrane potential in palmitate plus BPA exposed cells, leading to increased caspase-3 cleavage and subsequent apoptosis. Interestingly, inclusion of the unsaturated fatty acid, oleate, along with palmitate during the pre-treatment period completely abrogated the ER stress, mitochondrial toxicity, and cell death induced by subsequent exposure to BPA. Thus, our data identify for the first time an important interaction between a fatty acid and an environmental toxin and have implications for developing nutritional interventions to mitigate the deleterious effects of such xenobiotic exposures.
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Affiliation(s)
- Anupom Mondal
- Rutgers Center for Lipid Research, Rutgers University, New Brunswick, NJ, USA; Center for Nutrition, Microbiome, and Health, New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ, USA; Invivotek, A Genesis Biotechnology Group, Hamilton, NJ, USA
| | - Natalie Burchat
- Rutgers Center for Lipid Research, Rutgers University, New Brunswick, NJ, USA; Center for Nutrition, Microbiome, and Health, New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ, USA
| | - Harini Sampath
- Rutgers Center for Lipid Research, Rutgers University, New Brunswick, NJ, USA; Center for Nutrition, Microbiome, and Health, New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ, USA; Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, USA.
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4
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Meli R, Monnolo A, Annunziata C, Pirozzi C, Ferrante MC. Oxidative Stress and BPA Toxicity: An Antioxidant Approach for Male and Female Reproductive Dysfunction. Antioxidants (Basel) 2020; 9:E405. [PMID: 32397641 PMCID: PMC7278868 DOI: 10.3390/antiox9050405] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 12/16/2022] Open
Abstract
Bisphenol A (BPA) is a non-persistent anthropic and environmentally ubiquitous compound widely employed and detected in many consumer products and food items; thus, human exposure is prolonged. Over the last ten years, many studies have examined the underlying molecular mechanisms of BPA toxicity and revealed links among BPA-induced oxidative stress, male and female reproductive defects, and human disease. Because of its hormone-like feature, BPA shows tissue effects on specific hormone receptors in target cells, triggering noxious cellular responses associated with oxidative stress and inflammation. As a metabolic and endocrine disruptor, BPA impairs redox homeostasis via the increase of oxidative mediators and the reduction of antioxidant enzymes, causing mitochondrial dysfunction, alteration in cell signaling pathways, and induction of apoptosis. This review aims to examine the scenery of the current BPA literature on understanding how the induction of oxidative stress can be considered the "fil rouge" of BPA's toxic mechanisms of action with pleiotropic outcomes on reproduction. Here, we focus on the protective effects of five classes of antioxidants-vitamins and co-factors, natural products (herbals and phytochemicals), melatonin, selenium, and methyl donors (used alone or in combination)-that have been found useful to counteract BPA toxicity in male and female reproductive functions.
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Affiliation(s)
- Rosaria Meli
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (R.M.); (C.A.)
| | - Anna Monnolo
- Department of Veterinary Medicine and Animal Productions, Federico II University of Naples, Via Delpino 1, 80137 Naples, Italy;
| | - Chiara Annunziata
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (R.M.); (C.A.)
| | - Claudio Pirozzi
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (R.M.); (C.A.)
| | - Maria Carmela Ferrante
- Department of Veterinary Medicine and Animal Productions, Federico II University of Naples, Via Delpino 1, 80137 Naples, Italy;
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5
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Beard WA, Horton JK, Prasad R, Wilson SH. Eukaryotic Base Excision Repair: New Approaches Shine Light on Mechanism. Annu Rev Biochem 2020; 88:137-162. [PMID: 31220977 DOI: 10.1146/annurev-biochem-013118-111315] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Genomic DNA is susceptible to endogenous and environmental stresses that modify DNA structure and its coding potential. Correspondingly, cells have evolved intricate DNA repair systems to deter changes to their genetic material. Base excision DNA repair involves a number of enzymes and protein cofactors that hasten repair of damaged DNA bases. Recent advances have identified macromolecular complexes that assemble at the DNA lesion and mediate repair. The repair of base lesions generally requires five enzymatic activities: glycosylase, endonuclease, lyase, polymerase, and ligase. The protein cofactors and mechanisms for coordinating the sequential enzymatic steps of repair are being revealed through a range of experimental approaches. We discuss the enzymes and protein cofactors involved in eukaryotic base excision repair, emphasizing the challenge of integrating findings from multiple methodologies. The results provide an opportunity to assimilate biochemical findings with cell-based assays to uncover new insights into this deceptively complex repair pathway.
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Affiliation(s)
- William A Beard
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Science, National Institutes of Health, Research Triangle Park, North Carolina 27709-2233, USA;
| | - Julie K Horton
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Science, National Institutes of Health, Research Triangle Park, North Carolina 27709-2233, USA;
| | - Rajendra Prasad
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Science, National Institutes of Health, Research Triangle Park, North Carolina 27709-2233, USA;
| | - Samuel H Wilson
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Science, National Institutes of Health, Research Triangle Park, North Carolina 27709-2233, USA;
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Fatma Karaman E, Caglayan M, Sancar-Bas S, Ozal-Coskun C, Arda-Pirincci P, Ozden S. Global and region-specific post-transcriptional and post-translational modifications of bisphenol A in human prostate cancer cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 255:113318. [PMID: 31610501 DOI: 10.1016/j.envpol.2019.113318] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/10/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
Bisphenol A (BPA), as synthetic monomer used in the production of polycarbonate plastic and epoxy resins, has endocrine disruptor properties and high risk on human health. Epigenetic alterations could act an important role in BPA-induced toxicity, but its mechanism has not been fully understood. We investigated the effects of BPA on gene expression of chromatin modifying enzymes, promoter methylation of tumor suppressor genes and histone modifications in human prostate carcinoma cells (PC-3). IC50 value of BPA was determined as 217 and 190 μM in PC-3 cells by MTT and NRU tests, respectively. We revealed an increase in global levels of 5-methylcytocine and 5-hydroxymethylcytocine at 10 μM of BPA for 96 h. We observed a significant increase on promoter DNA methylation and decrease on gene expression of p16 gene while no change was observed for Cyclin D2 and Rassf1. Significant changes were observed in global histone modifications (H3K9ac, H3K9me3, H3K27me3, and H4K20me3) in PC-3 cells. According to these results, we investigated wide-range epigenetic modifications using PCR arrays. After 96 h BPA exposure, chromatin modifying enzymes including KDM5B and NSD1 were significantly downregulated. Also, promoter methylation of tumor suppressor genes including BCR, GSTP1, LOX, MGMT, NEUROG1, PDLIM4, PTGS2, PYCARD, TIMP3, TSC2 and ZMYDN10 altered significantly. ChIP results showed that H3K9ac, H3K9me3 and H3K27me3 modifications on p16 gene showed significant increases after 1 and 10 μM of BPA exposure. In conclusion, epigenetic signatures such as DNA methylation and histone modifications could be proposed as molecular biomarkers of BPA-induced prostate cancer progression.
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Affiliation(s)
- Ecem Fatma Karaman
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University, 34116, Beyazit, Istanbul, Turkey
| | - Mine Caglayan
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University, 34116, Beyazit, Istanbul, Turkey
| | - Serap Sancar-Bas
- Department of Biology, Faculty of Science, Istanbul University, 34134, Vezneciler, Istanbul, Turkey
| | - Cansu Ozal-Coskun
- Section of Biology, Institute of Graduate Studies in Sciences, Istanbul University, 34134, Vezneciler, Istanbul, Turkey
| | - Pelin Arda-Pirincci
- Department of Biology, Faculty of Science, Istanbul University, 34134, Vezneciler, Istanbul, Turkey
| | - Sibel Ozden
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University, 34116, Beyazit, Istanbul, Turkey.
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7
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Sonavane M, Gassman NR. Bisphenol A co-exposure effects: a key factor in understanding BPA's complex mechanism and health outcomes. Crit Rev Toxicol 2019; 49:371-386. [PMID: 31256736 DOI: 10.1080/10408444.2019.1621263] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bisphenol A (BPA) is an environmental endocrine disrupting chemical widely used in the production of consumer products, such as polycarbonate plastics, epoxies, and thermal receipt paper. Human exposure to BPA is ubiquitous due to its high-volume production and use. BPA exposure has been associated with obesity, diabetes, reproductive disorders, and cancer. Yet, the molecular mechanisms or modes of action underlying these disease outcomes are poorly understood due to the pleiotropic effects induced by BPA. A further confounding factor in understanding BPA's impact on human health is that co-exposure of BPA with endogenous and exogenous agents occurs during the course of daily life. Studies investigating BPA exposure effects and their relationship to adverse health outcomes often ignore interactions between BPA and other chemicals present in the environment. This review examines BPA co-exposure studies to highlight potentially unexplored mechanisms of action and their possible associations with the adverse health effects attributed to BPA. Importantly, both adverse and beneficial co-exposure effects are observed between BPA and natural chemicals or environmental stressors in in vitro and in vivo models. These interactions clearly influence cellular responses and impact endpoint measures and need to be considered when evaluating BPA exposures and their health effects.
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Affiliation(s)
- Manoj Sonavane
- Department of Oncologic Sciences, University of South Alabama Mitchell Cancer Institute, Mobile, AL, USA.,Department of Physiology and Cell Biology, University of South Alabama College of Medicine, Mobile, AL, USA
| | - Natalie R Gassman
- Department of Oncologic Sciences, University of South Alabama Mitchell Cancer Institute, Mobile, AL, USA.,Department of Physiology and Cell Biology, University of South Alabama College of Medicine, Mobile, AL, USA
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8
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The influence of low dose Bisphenol A on whole genome DNA methylation and chromatin compaction in different human cell lines. Toxicol In Vitro 2019; 58:26-34. [PMID: 30876887 DOI: 10.1016/j.tiv.2019.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 02/23/2019] [Accepted: 03/07/2019] [Indexed: 12/14/2022]
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Effects of Bauhinia forficata on glycaemia, lipid profile, hepatic glycogen content and oxidative stress in rats exposed to Bisphenol A. Toxicol Rep 2019; 6:244-252. [PMID: 30911467 PMCID: PMC6416659 DOI: 10.1016/j.toxrep.2019.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 02/27/2019] [Accepted: 03/01/2019] [Indexed: 12/12/2022] Open
Abstract
Bisphenol A (BPA) is an abundant raw material applied in the production of daily necessities, such as food cans, baby bottles, electronic and medical equipment. Phytotherapeutic use of plant preparations has long been known for multiple target medicinal uses. The species Bauhinia forficata is widely used as hypoglycemic, anti-inflammatory, antioxidant, diuretic and hypocholesterolemic agent. The aim of this study was to verify the effects of B. forficata extract in association with BPA exposure on serological parameters, hepatic antioxidant status and glycogen store capacity in Wistar rats. B. forficata was able to reduce BPA-induced glucose levels; it also prevented the early glucose elevation in control and BPA-exposed animals after the glucose provocative test. This effect was related to the hepatic glycogen content; while BPA reduced the hepatic glycogen deposits B. forficata treatment contributed to minimize it. BPA and B. forficata singly caused elevation in triacylglycerol and VLDL levels and reduction in cholesterol and LDL concentrations. BPA increased hepatic malondialdehyde levels and reduced catalase activity, thus inducing liver oxidative stress. Conversely, B. forficata treatment reduced malondialdehyde concentration without interfering with catalase activity; this antioxidant capacity is attributed to the flavonoids content (e.g., kaempferol and myricetin). Based on these results, we demonstrated that B. forficata commercial extract has hypoglycemic and antioxidant properties capable of minimizing the effects of BPA. However, it should be considered that the consumption of herbal commercial extract must be judicious to avoid deleterious health effects.
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10
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Beard WA, Wilson SH. DNA polymerase beta and other gap-filling enzymes in mammalian base excision repair. Enzymes 2019; 45:1-26. [PMID: 31627875 DOI: 10.1016/bs.enz.2019.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
DNA polymerase β plays a central role in the base excision DNA repair pathway that cleanses the genome of apurinic/apyrimidinic (AP) sites. AP sites arise in DNA from spontaneous base loss and DNA damage-specific glycosylases that hydrolyze the N-glycosidic bond between the deoxyribose and damaged base. AP sites are deleterious lesions because they can be mutagenic and/or cytotoxic. DNA polymerase β contributes two enzymatic activities, DNA synthesis and lyase, during the repair of AP sites; these activities reside on carboxyl- and amino-terminal domains, respectively. Accordingly, its cellular, structural, and kinetic attributes have been extensively characterized and it serves as model enzyme for the nucleotidyl transferase reaction utilized by other replicative, repair, and trans-lesion DNA polymerases.
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Affiliation(s)
- William A Beard
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Science, National Institutes of Health, Durham, NC, United States
| | - Samuel H Wilson
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Science, National Institutes of Health, Durham, NC, United States.
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11
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Sonavane M, Sykora P, Andrews JF, Sobol RW, Gassman NR. Camptothecin Efficacy to Poison Top1 Is Altered by Bisphenol A in Mouse Embryonic Fibroblasts. Chem Res Toxicol 2018; 31:510-519. [PMID: 29799191 DOI: 10.1021/acs.chemrestox.8b00050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Bisphenol A (BPA) is used heavily in the production of polycarbonate plastics, thermal receipt paper, and epoxies. Ubiquitous exposure to BPA has been linked to obesity, diabetes, and breast and reproductive system cancers. Resistance to chemotherapeutic agents has also been shown in cancer cell models. Here, we investigated BPA's ability to confer resistance to camptothecin (CPT) in mouse embryonic fibroblasts (MEFs). MEFs are sensitive to CPT; however, co-exposure of BPA with CPT improved cell survival. Co-exposure significantly reduced Top1-DNA adducts, decreasing chromosomal aberrations and DNA strand break formation. This decrease occurs despite BPA treatment increasing the protein levels of Top1. By examining chromatin structure after BPA exposure, we determined that widespread compaction and loss of nuclear volume occurs. Therefore, BPA reduced CPT activity by reducing the accessibility of DNA to Top1, inhibiting DNA adduct formation, the generation of toxic DNA strand breaks, and improving cell survival.
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Affiliation(s)
- Manoj Sonavane
- Department of Oncologic Sciences , University of South Alabama Mitchell Cancer Institute , 1660 Spring Hill Avenue , Mobile , Alabama 36604 , United States
| | - Peter Sykora
- Department of Oncologic Sciences , University of South Alabama Mitchell Cancer Institute , 1660 Spring Hill Avenue , Mobile , Alabama 36604 , United States
| | - Joel F Andrews
- Department of Oncologic Sciences , University of South Alabama Mitchell Cancer Institute , 1660 Spring Hill Avenue , Mobile , Alabama 36604 , United States
| | - Robert W Sobol
- Department of Oncologic Sciences , University of South Alabama Mitchell Cancer Institute , 1660 Spring Hill Avenue , Mobile , Alabama 36604 , United States
| | - Natalie R Gassman
- Department of Oncologic Sciences , University of South Alabama Mitchell Cancer Institute , 1660 Spring Hill Avenue , Mobile , Alabama 36604 , United States
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12
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Systems Analysis of the Liver Transcriptome in Adult Male Zebrafish Exposed to the Plasticizer (2-Ethylhexyl) Phthalate (DEHP). Sci Rep 2018; 8:2118. [PMID: 29391432 PMCID: PMC5794889 DOI: 10.1038/s41598-018-20266-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 01/15/2018] [Indexed: 02/08/2023] Open
Abstract
The organic compound diethylhexyl phthalate (DEHP) represents a high production volume chemical found in cosmetics, personal care products, laundry detergents, and household items. DEHP, along with other phthalates causes endocrine disruption in males. Exposure to endocrine disrupting chemicals has been linked to the development of several adverse health outcomes with apical end points including Non-Alcoholic Fatty Liver Disease (NAFLD). This study examined the adult male zebrafish (Danio rerio) transcriptome after exposure to environmental levels of DEHP and 17α-ethinylestradiol (EE2) using both DNA microarray and RNA-sequencing technologies. Our results show that exposure to DEHP is associated with differentially expressed (DE) transcripts associated with the disruption of metabolic processes in the liver, including perturbation of five biological pathways: ‘FOXA2 and FOXA3 transcription factor networks’, ‘Metabolic pathways’, ‘metabolism of amino acids and derivatives’, ‘metabolism of lipids and lipoproteins’, and ‘fatty acid, triacylglycerol, and ketone body metabolism’. DE transcripts unique to DEHP exposure, not observed with EE2 (i.e. non-estrogenic effects) exhibited a signature related to the regulation of transcription and translation, and ruffle assembly and organization. Collectively our results indicate that exposure to low DEHP levels modulates the expression of liver genes related to fatty acid metabolism and the development of NAFLD.
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13
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Ma L, Hu J, Li J, Yang Y, Zhang L, Zou L, Gao R, Peng C, Wang Y, Luo T, Xiang X, Qing H, Xiao X, Wu C, Wang Z, He JC, Li Q, Yang S. Bisphenol A promotes hyperuricemia
via
activating xanthine oxidase. FASEB J 2018; 32:1007-1016. [DOI: 10.1096/fj.201700755r] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Linqiang Ma
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Jinbo Hu
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Jiayu Li
- Laboratory of Lipid and Glucose MetabolismThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Yi Yang
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Linkun Zhang
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Lingyun Zou
- Department of MicrobiologyBioinformatics CenterThe Third Military Medical UniversityChongqingChina
| | - Rufei Gao
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Chuan Peng
- Laboratory of Lipid and Glucose MetabolismThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Yue Wang
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Ting Luo
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Xiaojiao Xiang
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Hua Qing
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Xiaoqiu Xiao
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
- Laboratory of Lipid and Glucose MetabolismThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Chaodong Wu
- Department of Nutrition and Food ScienceTexas A&M UniversityCollege StationTexasUSA
| | - Zhihong Wang
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
- Division of NephrologyDepartment of MedicineIcahn School of Medicine at Mount Sinai, New YorkNew YorkUSA
- Department of Pharmacological SciencesIcahn School of Medicine at Mount Sinai, New YorkNew YorkUSA
| | - John Cijiang He
- Division of NephrologyDepartment of MedicineIcahn School of Medicine at Mount Sinai, New YorkNew YorkUSA
| | - Qifu Li
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Shumin Yang
- Department of Endocrinology andThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
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Cadet J, Davies KJA, Medeiros MH, Di Mascio P, Wagner JR. Formation and repair of oxidatively generated damage in cellular DNA. Free Radic Biol Med 2017; 107:13-34. [PMID: 28057600 PMCID: PMC5457722 DOI: 10.1016/j.freeradbiomed.2016.12.049] [Citation(s) in RCA: 205] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 12/27/2016] [Accepted: 12/31/2016] [Indexed: 12/18/2022]
Abstract
In this review article, emphasis is placed on the critical survey of available data concerning modified nucleobase and 2-deoxyribose products that have been identified in cellular DNA following exposure to a wide variety of oxidizing species and agents including, hydroxyl radical, one-electron oxidants, singlet oxygen, hypochlorous acid and ten-eleven translocation enzymes. In addition, information is provided about the generation of secondary oxidation products of 8-oxo-7,8-dihydroguanine and nucleobase addition products with reactive aldehydes arising from the decomposition of lipid peroxides. It is worth noting that the different classes of oxidatively generated DNA damage that consist of single lesions, intra- and interstrand cross-links were unambiguously assigned and quantitatively detected on the basis of accurate measurements involving in most cases high performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry. The reported data clearly show that the frequency of DNA lesions generated upon severe oxidizing conditions, including exposure to ionizing radiation is low, at best a few modifications per 106 normal bases. Application of accurate analytical measurement methods has also allowed the determination of repair kinetics of several well-defined lesions in cellular DNA that however concerns so far only a restricted number of cases.
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Affiliation(s)
- Jean Cadet
- Département de médecine nucléaire et radiobiologie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada J1H 5N4.
| | - Kelvin J A Davies
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, The University of Southern California, Los Angeles, CA 90089-0191, United States; Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, The University of Southern California, Los Angeles, CA 90089-0191, United States
| | - Marisa Hg Medeiros
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP 26077, CEP 05508 000 São Paulo, SP, Brazil
| | - Paolo Di Mascio
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP 26077, CEP 05508 000 São Paulo, SP, Brazil
| | - J Richard Wagner
- Département de médecine nucléaire et radiobiologie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada J1H 5N4
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Gassman NR. Induction of oxidative stress by bisphenol A and its pleiotropic effects. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2017; 58:60-71. [PMID: 28181297 PMCID: PMC5458620 DOI: 10.1002/em.22072] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/18/2016] [Accepted: 12/19/2016] [Indexed: 05/23/2023]
Abstract
Bisphenol A (BPA) has become a target of intense public scrutiny since concerns about its association with human diseases such as obesity, diabetes, reproductive disorders, and cancer have emerged. BPA is a highly prevalent chemical in consumer products, and human exposure is thought to be ubiquitous. Numerous studies have demonstrated its endocrine disrupting properties and attributed exposure with cytotoxic, genotoxic, and carcinogenic effects; however, the results of these studies are still highly debated and a consensus about BPA's safety and its role in human disease has not been reached. One of the contributing factors is a lack of molecular mechanisms or modes of action that explain the diverse and pleiotropic effects observed after BPA exposure. The increase in BPA research seen over the last ten years has resulted in more studies that examine molecular mechanisms and revealed links between BPA-induced oxidative stress and human disease. Here, a review of the current literature examining BPA exposure and the induction of reactive oxygen species (ROS) or oxidative stress will be provided to examine the landscape of the current BPA literature and provide a framework for understanding how induction of oxidative stress by BPA may contribute to the pleiotropic effects observed after exposure. Environ. Mol. Mutagen. 58:60-71, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Natalie R Gassman
- University of South Alabama Mitchell Cancer Institute, Mobile, Alabama, 36604-1405
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Liang S, Yin L, Shengyang Yu K, Hofmann MC, Yu X. High-Content Analysis Provides Mechanistic Insights into the Testicular Toxicity of Bisphenol A and Selected Analogues in Mouse Spermatogonial Cells. Toxicol Sci 2017; 155:43-60. [PMID: 27633978 PMCID: PMC5216646 DOI: 10.1093/toxsci/kfw178] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Bisphenol A (BPA), an endocrine-disrupting compound, was found to be a testicular toxicant in animal models. Bisphenol S (BPS), bisphenol AF (BPAF), and tetrabromobisphenol A (TBBPA) were recently introduced to the market as alternatives to BPA. However, toxicological data of these compounds in the male reproductive system are still limited so far. This study developed and validated an automated multi-parametric high-content analysis (HCA) using the C18-4 spermatogonial cell line as a model. We applied these validated HCA, including nuclear morphology, DNA content, cell cycle progression, DNA synthesis, cytoskeleton integrity, and DNA damage responses, to characterize and compare the testicular toxicities of BPA and 3 selected commercial available BPA analogues, BPS, BPAF, and TBBPA. HCA revealed BPAF and TBBPA exhibited higher spermatogonial toxicities as compared with BPA and BPS, including dose- and time-dependent alterations in nuclear morphology, cell cycle, DNA damage responses, and perturbation of the cytoskeleton. Our results demonstrated that this specific culture model together with HCA can be utilized for quantitative screening and discriminating of chemical-specific testicular toxicity in spermatogonial cells. It also provides a fast and cost-effective approach for the identification of environmental chemicals that could have detrimental effects on reproduction.
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Affiliation(s)
- Shenxuan Liang
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia
| | - Lei Yin
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia
- ReproTox Biotech LLC, 111 Riverbend Drive, Athens, Georgia
| | - Kevin Shengyang Yu
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia
| | - Marie-Claude Hofmann
- Department of Endocrine Neoplasia & Hormonal Disorders, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit no. 1105 Houston, Texas
| | - Xiaozhong Yu
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia;
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