151
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Allen MC, Moog NK, Buss C, Yen E, Gustafsson HC, Sullivan EL, Graham AM. Co-occurrence of preconception maternal childhood adversity and opioid use during pregnancy: Implications for offspring brain development. Neurotoxicol Teratol 2021; 88:107033. [PMID: 34601061 PMCID: PMC8578395 DOI: 10.1016/j.ntt.2021.107033] [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: 01/05/2021] [Revised: 09/20/2021] [Accepted: 09/24/2021] [Indexed: 12/11/2022]
Abstract
Understanding of the effects of in utero opioid exposure on neurodevelopment is a priority given the recent dramatic increase in opioid use among pregnant individuals. However, opioid abuse does not occur in isolation-pregnant individuals abusing opioids often have a significant history of adverse experiences in childhood, among other co-occurring factors. Understanding the specific pathways in which these frequently co-occurring factors may interact and cumulatively influence offspring brain development in utero represents a priority for future research in this area. We highlight maternal history of childhood adversity (CA) as one such co-occurring factor that is more prevalent among individuals using opioids during pregnancy and which is increasingly shown to affect offspring neurodevelopment through mechanisms beginning in utero. Despite the high incidence of CA history in pregnant individuals using opioids, we understand very little about the effects of comorbid prenatal opioid exposure and maternal CA history on fetal brain development. Here, we first provide an overview of current knowledge regarding effects of opioid exposure and maternal CA on offspring neurodevelopment that may occur during gestation. We then outline potential mechanistic pathways through which these factors might have interactive and cumulative influences on offspring neurodevelopment as a foundation for future research in this area.
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Affiliation(s)
- Madeleine C Allen
- Department of Psychiatry, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239, United States
| | - Nora K Moog
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Psychology, Luisenstrasse 57, 10117 Berlin, Germany
| | - Claudia Buss
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Psychology, Luisenstrasse 57, 10117 Berlin, Germany; Development, Health and Disease Research Program, University of California, Irvine, 837 Health Sciences Drive, Irvine, California 92697, United States
| | - Elizabeth Yen
- Department of Pediatrics, Tufts Medical Center, Boston, MA 02111, United States
| | - Hanna C Gustafsson
- Department of Psychiatry, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239, United States
| | - Elinor L Sullivan
- Department of Psychiatry, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239, United States; Division of Neuroscience, Oregon National Primate Research Center, 505 NW 185(th) Ave., Beaverton, OR 97006, United States; Department of Behavioral Neuroscience, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239, United States
| | - Alice M Graham
- Department of Psychiatry, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239, United States.
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152
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Intergenerational Patterns of DNA Methylation in Procambarus clarkii Following Exposure to Genotoxicants: A Conjugation in Past Simple or Past Continuous? TOXICS 2021; 9:toxics9110271. [PMID: 34822662 PMCID: PMC8618669 DOI: 10.3390/toxics9110271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 12/31/2022]
Abstract
Epigenome is susceptible to modulation by environmental pressures—namely, through alterations in global DNA methylation, impacting the organism condition and, ultimately, reverberating on the phenotype of the subsequent generations. Hence, an intergenerational study was conducted, aiming to clarify the influence of genotoxicants on global DNA methylation of the crayfish Procambarus clarkii. Two subsequent generations were exposed to the herbicide penoxsulam (Px; 23 µg·L−1) and to the genotoxicant model ethyl methanesulfonate (EMS; 5 mg·L−1). Px did not induce changes in DNA methylation of adult crayfish (F0). However, the hypomethylation occurring in unexposed F1 juveniles demonstrated that the history of exposure per se can modulate epigenome. In F1 descendants of the Px-exposed group, methylome (hypermethylated) was more affected in males than in females. EMS-induced hypomethylation in adult females (F0), also showed gender specificity. In addition, hypomethylation was also observed in the unexposed F1 crayfish, indicating an intergenerational epigenetic effect. The modulatory role of past exposure to penoxsulam or to EMS also showed a dependency on the crayfish developmental stage. Overall, this research revealed that indirect experiences (events occurring in a predecessor generation) can have an impact even greater than direct experiences (present events) on the epigenetic dynamics.
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153
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Spiroux de Vendômois J, Bourdineaud JP, Apoteker A, Defarge N, Gaillard E, Lepage C, Testart J, Vélot C. Trans-disciplinary diagnosis for an in-depth reform of regulatory expertise in the field of environmental toxicology and security. Toxicol Res 2021; 37:405-419. [PMID: 34631497 DOI: 10.1007/s43188-020-00075-w] [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: 05/28/2020] [Revised: 09/18/2020] [Accepted: 11/04/2020] [Indexed: 02/07/2023] Open
Abstract
Repeated health and environmental scandals, the loss of biodiversity and the recent burst of chronic diseases constantly remind us the inability of public authorities and risk assessment agencies to protect health and the environment. After reviewing the main shortcomings of our evaluation system of chemicals and new technologies, supported by some concrete examples, we develop a number of proposals to reform both the risk assessment agencies and the evaluation processes. We especially propose the establishment of an independent structure, a High Authority of Expertise, supervising, either at European level or at national level, all the evaluation agencies, and ensuring the transparency, the methodology and the deontology of the expertise. In addition to modifying the evaluation protocols, both in their nature and in their content, especially in order to adapt them to current pollutants such as endocrine disruptors, we propose a reform of the expertise processes based on transparency, contradiction, and greater democracy, including close collaboration between the institutional and scientific parties on the one hand and the whole civil society on the other. All the proposals we make are inspired by the desire to prevent, through appropriate mechanisms, the human, health, ecological, but also economic consequences of contemporary technological choices.
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Affiliation(s)
- Joël Spiroux de Vendômois
- Committee for Independent Research and Information on Genetic Engineering (CRIIGEN), 42 rue de Lisbonne, 75008 Paris, France
| | - Jean-Paul Bourdineaud
- CNRS, UMR 5234, Laboratory of Fundamental Microbiology and Pathogenicity, European Institute of Chemistry and Biology, University of Bordeaux, Bordeaux, France
| | - Arnaud Apoteker
- Committee for Independent Research and Information on Genetic Engineering (CRIIGEN), 42 rue de Lisbonne, 75008 Paris, France
| | - Nicolas Defarge
- Committee for Independent Research and Information on Genetic Engineering (CRIIGEN), 42 rue de Lisbonne, 75008 Paris, France.,Institute of Integrative Biology IBZ, Swiss Federal Institute of Technology, Universitätstrasse 16, 8092 Zurich, Switzerland
| | - Emilie Gaillard
- Committee for Independent Research and Information on Genetic Engineering (CRIIGEN), 42 rue de Lisbonne, 75008 Paris, France.,Université de Caen-Basse Normandie, Esplanade de la Paix, 14000 Caen, France
| | - Corinne Lepage
- Committee for Independent Research and Information on Genetic Engineering (CRIIGEN), 42 rue de Lisbonne, 75008 Paris, France
| | - Jacques Testart
- Committee for Independent Research and Information on Genetic Engineering (CRIIGEN), 42 rue de Lisbonne, 75008 Paris, France.,Sciences Citoyennes, 38 rue Saint Sabin, 75011 Paris, France
| | - Christian Vélot
- Committee for Independent Research and Information on Genetic Engineering (CRIIGEN), 42 rue de Lisbonne, 75008 Paris, France.,Sciences Citoyennes, 38 rue Saint Sabin, 75011 Paris, France.,Laboratory VEAC, University Paris-Saclay, Faculty of Sciences, Bât. 350-RdC, Avenue Jean Perrin, 91405 Orsay, France.,Risk Pole MRSH-CNRS, EA2608, University of Caen, Esplanade de la Paix, 14032 Caen, France
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154
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Boudalia S, Bousbia A, Boumaaza B, Oudir M, Canivenc Lavier MC. Relationship between endocrine disruptors and obesity with a focus on bisphenol A: a narrative review. BIOIMPACTS 2021; 11:289-300. [PMID: 34631491 PMCID: PMC8494257 DOI: 10.34172/bi.2021.33] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 04/25/2020] [Accepted: 05/10/2020] [Indexed: 11/09/2022]
Abstract
Introduction: Scientific data suggest that early exposure to endocrine-disrupting chemicals (EDCs) affect -repro, -neuro, -metabolic systems, to which are added other notions such as mixtures, window and duration of exposure, trans-generational effects, and epigenetic mechanisms. Methods: In the present narrative review, we studied the relationship between exposure to EDCs with the appearance and development of obesity. Results: Exposure to EDCs like Bisphenol A during the early stages of development has been shown to lead to weight gain and obesity. EDCs can interfere with endocrine signaling, affect adipocytes differentiation and endocrine function and disrupt metabolic processes, especially if exposure occurs at very low doses, in the mixture, during early development stages for several generations. Conclusion: Exposure to EDCs is positively associated with obesity development. Moreover, the use of integrative approaches which mimicking environmental conditions are necessary and recommended to evaluate EDCs' effects in future studies.
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Affiliation(s)
- Sofiane Boudalia
- Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre et de l'Univers, Université 8 Mai 1945 Guelma BP 4010 Guelma 24000, Algérie.,Laboratoire de Biologie, Eau et Environnement, Université 8 Mai 1945 Guelma BP 4010 Guelma 24000, Algérie
| | - Aissam Bousbia
- Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre et de l'Univers, Université 8 Mai 1945 Guelma BP 4010 Guelma 24000, Algérie.,Laboratoire de Biologie, Eau et Environnement, Université 8 Mai 1945 Guelma BP 4010 Guelma 24000, Algérie
| | - Boualem Boumaaza
- Laboratoire de Biologie, Eau et Environnement, Université 8 Mai 1945 Guelma BP 4010 Guelma 24000, Algérie.,Département des Sciences Agronomiques, Faculté des Sciences de la Nature et de la Vie, Université Ibn Khaldoun, Tiaret 14000, Algérie
| | - Malha Oudir
- Laboratoire de Génie Chimique, Département de Génie des Procédés, Faculté de Technologie, Université Saâd Dahlab, USDB. BP 270, Route de Soumâa, 09000 Blida, Algérie
| | - Marie Chantal Canivenc Lavier
- Centre des Sciences du Goût et de l'Alimentation, INRA, CNRS, Université de Bourgogne - Franche-Comté, Dijon, 21000, France
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155
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The Molecular Biology of Susceptibility to Post-Traumatic Stress Disorder: Highlights of Epigenetics and Epigenomics. Int J Mol Sci 2021; 22:ijms221910743. [PMID: 34639084 PMCID: PMC8509551 DOI: 10.3390/ijms221910743] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 12/13/2022] Open
Abstract
Exposure to trauma is one of the most important and prevalent risk factors for mental and physical ill-health. Excessive or prolonged stress exposure increases the risk of a wide variety of mental and physical symptoms. However, people differ strikingly in their susceptibility to develop signs and symptoms of mental illness after traumatic stress. Post-traumatic stress disorder (PTSD) is a debilitating disorder affecting approximately 8% of the world’s population during their lifetime, and typically develops after exposure to a traumatic event. Despite that exposure to potentially traumatizing events occurs in a large proportion of the general population, about 80–90% of trauma-exposed individuals do not develop PTSD, suggesting an inter-individual difference in vulnerability to PTSD. While the biological mechanisms underlying this differential susceptibility are unknown, epigenetic changes have been proposed to underlie the relationship between exposure to traumatic stress and the susceptibility to develop PTSD. Epigenetic mechanisms refer to environmentally sensitive modifications to DNA and RNA molecules that regulate gene transcription without altering the genetic sequence itself. In this review, we provide an overview of various molecular biological, biochemical and physiological alterations in PTSD, focusing on changes at the genomic and epigenomic level. Finally, we will discuss how current knowledge may aid us in early detection and improved management of PTSD patients.
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156
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Giovanni SM, Letizia AAM, Chiara M, Vincenzo S, Erika P, Marta S. The Male Reproductive System and Endocrine Disruptors. Endocr Metab Immune Disord Drug Targets 2021; 22:686-703. [PMID: 34607552 DOI: 10.2174/1871530321666211004100633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 07/08/2021] [Accepted: 07/12/2021] [Indexed: 11/22/2022]
Abstract
The male reproductive system is exposed to a great number of chemical substances which can interfere with the normal hormonal milieu and reproductive function; these are called endocrine disruptors (EDs). Despite a growing number of studies evaluating the negative effects of EDs, their production is continuously growing although some of which have been prohibited. The prevalence of poor semen quality, hypospadias, cryptorchidism, and testicular cancer have increased in the last decades, and recently, it has been postulated that these could all be part of a unique syndrome called testicular dysgenesis syndrome. This syndrome could be related to exposure to a number of EDs which cause imbalances in the hormonal milieu and oestrogenic over-exposure during the foetal stage. The same EDs can also impair spermatogenesis in offspring and have epigenetic effects. Although studies on animal and in vitro models have raised concerns, data are conflicting. However, these studies must be considered as the basis for future research to promote male reproductive health.
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Affiliation(s)
| | | | - Maneschi Chiara
- Department of Internal Medicine, Villa Salus Hospital, Mestre (VE). Italy
| | - Sciabica Vincenzo
- Department of Internal Medicine, Villa Salus Hospital, Mestre (VE). Italy
| | - Pigatto Erika
- Department of Internal Medicine, Villa Salus Hospital, Mestre (VE). Italy
| | - Sanna Marta
- Department of Internal Medicine, Villa Salus Hospital, Mestre (VE). Italy
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157
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Ben Maamar M, Beck D, Nilsson EE, Kubsad D, Skinner MK. Epigenome-wide association study for glyphosate induced transgenerational sperm DNA methylation and histone retention epigenetic biomarkers for disease. Epigenetics 2021; 16:1150-1167. [PMID: 33296237 PMCID: PMC8510602 DOI: 10.1080/15592294.2020.1853319] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/20/2020] [Accepted: 10/23/2020] [Indexed: 12/16/2022] Open
Abstract
The herbicide glyphosate has been shown to promote the epigenetic transgenerational inheritance of pathology and disease in subsequent great-grand offspring (F3 generation). This generational toxicology suggests the impacts of environmental exposures need to assess subsequent generations. The current study was designed to identify epigenetic biomarkers for glyphosate-induced transgenerational diseases using an epigenome-wide association study (EWAS). Following transient glyphosate exposure of gestating female rats (F0 generation), during the developmental period of gonadal sex determination, the subsequent transgenerational F3 generation, with no direct exposure, were aged to 1 year and animals with specific pathologies identified. The pathologies investigated included prostate disease, kidney disease, obesity, and presence of multiple disease. The sperm were collected from the glyphosate lineage males with only an individual disease and used to identify specific differential DNA methylation regions (DMRs) and the differential histone retention sites (DHRs) associated with that pathology. Unique signatures of DMRs and DHRs for each pathology were identified for the specific diseases. Interestingly, at a lower statistical threshold overlapping sets of DMRs and DHRs were identified that were common for all the pathologies. This is one of the first observations that sperm histone retention can potentially act as a biomarker for specific diseases. The DMR and DHR associated genes were identified and correlated with known pathology specific-associated genes. Observations indicate transgenerational epigenetic biomarkers of disease pathology can be identified in the sperm that appear to assess disease susceptibility. These biomarkers suggest epigenetic diagnostics could potentially be used to facilitate preventative medicine.
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Affiliation(s)
- Millissia Ben Maamar
- Center for Reproductive Biology School of Biological Sciences, Washington State University, Pullman, WA, USA
| | - Daniel Beck
- Center for Reproductive Biology School of Biological Sciences, Washington State University, Pullman, WA, USA
| | - Eric E. Nilsson
- Center for Reproductive Biology School of Biological Sciences, Washington State University, Pullman, WA, USA
| | - Deepika Kubsad
- Center for Reproductive Biology School of Biological Sciences, Washington State University, Pullman, WA, USA
| | - Michael K. Skinner
- Center for Reproductive Biology School of Biological Sciences, Washington State University, Pullman, WA, USA
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158
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Vidali MS, Dailianis S, Vlastos D, Georgiadis P. PCB cause global DNA hypomethylation of human peripheral blood monocytes in vitro. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 87:103696. [PMID: 34171487 DOI: 10.1016/j.etap.2021.103696] [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] [Received: 02/16/2021] [Revised: 06/18/2021] [Accepted: 06/20/2021] [Indexed: 06/13/2023]
Abstract
We have recently reported significant associations between exposure to polychlorinated biphenyls (PCB) and alterations on genome-wide methylation of leukocyte DNA of healthy volunteers and provided evidence in support of an etiological link between the observed CpG methylation variations and chronic lymphocytic leukemia. The present study aimed to elucidate the effects of PCB in human lymphocytes' methylome in vitro. Therefore, U937 cells and human peripheral blood monocytes (PBMC) were exposed in vitro to the dioxin-like PCB-118, the non-dioxin-like PCB-153, and hexachlorobenzene (HCB) and thorough cytotoxicity, genotoxicity and global CpG methylation analyses were performed. All compounds currently tested did not show any consistent significant genotoxicity at all exposure periods and concentrations used. On the contrary, extensive dose-dependent hypomethylation was observed, even at low concentrations, in stimulated PBMC treated with PCB-118 and PCB-153 as well as a small but statistically significant hypomethylation in HCB-treated stimulated cells.
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Affiliation(s)
- Maria-Sofia Vidali
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vas.Constantinou Av, GR-11635, Athens, Greece; Section of Animal Biology, Department of Biology, University of Patras, GR-26500, Patras, Greece
| | - Stefanos Dailianis
- Section of Animal Biology, Department of Biology, University of Patras, GR-26500, Patras, Greece
| | - Dimitris Vlastos
- Department of Environmental Engineering, University of Patras, GR-30100, Agrinio, Greece
| | - Panagiotis Georgiadis
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vas.Constantinou Av, GR-11635, Athens, Greece.
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159
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Lee SK. Sure, Fathers Give Birth, Too! Postnatal paternal folate deficiency increases congenital disabilities through H3K4me3 histone methylation changes in sperm and embryos. Mol Cells 2021; 44:696-698. [PMID: 34588323 PMCID: PMC8490204 DOI: 10.14348/molcells.2021.0202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 08/11/2021] [Indexed: 12/22/2022] Open
Affiliation(s)
- Sun-Kyung Lee
- Department of Life Sciences, Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
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160
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Kontsevaya GV, Gerlinskaya LA, Moshkin YM, Anisimova MV, Stanova AK, Babochkina TI, Moshkin MP. The Effects of Sperm and Seminal Fluid of Immunized Male Mice on In Vitro Fertilization and Surrogate Mother-Embryo Interaction. Int J Mol Sci 2021; 22:ijms221910650. [PMID: 34638989 PMCID: PMC8508670 DOI: 10.3390/ijms221910650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 11/16/2022] Open
Abstract
The latest vaccination campaign has actualized the potential impact of antigenic stimuli on reproductive functions. To address this, we mimicked vaccination’s effects by administering keyhole limpet hemocyanin (KLH ) to CD1 male mice and used their sperm for in vitro fertilization (IVF). Two-cell embryos after IVF with spermatozoa from control (C) or KLH-treated (Im) male mice were transferred to surrogate mothers mated with vasectomized control (C) or KLH-treated (Im) male mice, resulting in four experimental groups: C–C, Im–C, C–Im, and Im–Im. The pre-implantation losses were significantly lower in the Im–C group than in the C–Im group. At the same time, the resorption rates reduced markedly in the C–Im compared to the Im–C group. Embryo and placenta weights were significantly higher in the Im–Im group. Although the GM-CSF levels were lower in the amniotic fluid of the gestating surrogate mothers in the Im–Im group, they were strongly correlated with embryo mass. The number–size trade-off was only significant in the Im–Im group. This suggests a positive, cooperative effect of spermatozoa and seminal fluid from immune-primed males on embryo growth and the optimal distribution of surrogate mother maternal resources despite the negative impact of males’ antigenic challenge on the IVF success rate.
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Affiliation(s)
- Galina Vladimirovna Kontsevaya
- Federal Research Center Institute of Cytology and Genetics, Siberian Branch of RAS, 630090 Novosibirsk, Russia; (G.V.K.); (Y.M.M.); (M.V.A.); (A.K.S.); (M.P.M.)
| | - Ludmila Alekseevna Gerlinskaya
- Federal Research Center Institute of Cytology and Genetics, Siberian Branch of RAS, 630090 Novosibirsk, Russia; (G.V.K.); (Y.M.M.); (M.V.A.); (A.K.S.); (M.P.M.)
- Correspondence: (L.A.G.); (T.I.B.)
| | - Yury Mikhailovich Moshkin
- Federal Research Center Institute of Cytology and Genetics, Siberian Branch of RAS, 630090 Novosibirsk, Russia; (G.V.K.); (Y.M.M.); (M.V.A.); (A.K.S.); (M.P.M.)
| | - Margarita Vladimirovna Anisimova
- Federal Research Center Institute of Cytology and Genetics, Siberian Branch of RAS, 630090 Novosibirsk, Russia; (G.V.K.); (Y.M.M.); (M.V.A.); (A.K.S.); (M.P.M.)
| | - Aliya Konstantinovna Stanova
- Federal Research Center Institute of Cytology and Genetics, Siberian Branch of RAS, 630090 Novosibirsk, Russia; (G.V.K.); (Y.M.M.); (M.V.A.); (A.K.S.); (M.P.M.)
| | - Tatyana Ivanovna Babochkina
- Federal Research Center Institute of Cytology and Genetics, Siberian Branch of RAS, 630090 Novosibirsk, Russia; (G.V.K.); (Y.M.M.); (M.V.A.); (A.K.S.); (M.P.M.)
- Correspondence: (L.A.G.); (T.I.B.)
| | - Mikhail Pavlovich Moshkin
- Federal Research Center Institute of Cytology and Genetics, Siberian Branch of RAS, 630090 Novosibirsk, Russia; (G.V.K.); (Y.M.M.); (M.V.A.); (A.K.S.); (M.P.M.)
- Biological Institute at Tomsk State University, 634050 Tomsk, Russia
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161
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Ajdary M, Keyhanfar F, Moosavi MA, Shabani R, Mehdizadeh M, Varma RS. Potential toxicity of nanoparticles on the reproductive system animal models: A review. J Reprod Immunol 2021; 148:103384. [PMID: 34583090 DOI: 10.1016/j.jri.2021.103384] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 08/06/2021] [Accepted: 09/13/2021] [Indexed: 12/12/2022]
Abstract
Over the past two decades, nanotechnology has been involved in an array of applications in various fields, including diagnostic kits, disease treatment, drug manufacturing, drug delivery, and gene therapy. But concerns about the toxicity of nanoparticles have greatly hindered their use; also, due to their increasing use in various industries, all members of society are exposed to the toxicity of these nanoparticles. Nanoparticles have a negative impact on various organs, including the reproductive system. They also can induce abortion in women, reduce fetal growth and development, and can damage the reproductive system and sperm morphology in men. In some cases, it has been observed that despite the modification of nanoparticles in composition, concentration, and method of administration, there is still damage to the reproductive organs. Therefore, understanding how nanoparticles affect the reproductive system is of very importance. In several studies, the nanoparticle toxicity effect on the genital organs has been investigated at the clinical and molecular levels using the in vivo and in vitro models. This study reviews these investigations and provides important data on the toxicity, hazards, and safety of nanoparticles in the reproductive system to facilitate the optimal use of nanoparticles in the industry.
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Affiliation(s)
- Marziyeh Ajdary
- Endometriosis Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Fariborz Keyhanfar
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Moosavi
- Department of Molecular Medicine, National Institute of Genetic Engineering and Biotechnology, Tehran, 14965/161, Iran
| | - Ronak Shabani
- Department of Anatomy, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mehdizadeh
- Department of Anatomy, Iran University of Medical Sciences, Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic.
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162
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Svanes C, Bertelsen RJ, Accordini S, Holloway JW, Júlíusson P, Boateng E, Krauss-Etchmann S, Schlünssen V, Gómez-Real F, Skulstad SM. Exposures during the prepuberty period and future offspring's health: evidence from human cohort studies†. Biol Reprod 2021; 105:667-680. [PMID: 34416759 PMCID: PMC8444705 DOI: 10.1093/biolre/ioab158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/02/2021] [Accepted: 08/17/2021] [Indexed: 11/13/2022] Open
Abstract
Emerging evidence suggests that exposures in prepuberty, particularly in fathers-to-be, may impact the phenotype of future offspring. Analyses of the RHINESSA cohort find that offspring of father’s exposed to tobacco smoking or overweight that started in prepuberty demonstrate poorer respiratory health in terms of more asthma and lower lung function. A role of prepuberty onset smoking for offspring fat mass is suggested in the RHINESSA and ALSPAC cohorts, and historic studies suggest that ancestral nutrition during prepuberty plays a role for grand-offspring’s health and morbidity. Support for causal relationships between ancestral exposures and (grand-)offspring’s health in humans has been enhanced by advancements in statistical analyses that optimize the gain while accounting for the many complexities and deficiencies in human multigeneration data. The biological mechanisms underlying such observations have been explored in experimental models. A role of sperm small RNA in the transmission of paternal exposures to offspring phenotypes has been established, and chemical exposures and overweight have been shown to influence epigenetic programming in germ cells. For example, exposure of adolescent male mice to smoking led to differences in offspring weight and alterations in small RNAs in the spermatozoa of the exposed fathers. It is plausible that male prepuberty may be a time window of particular susceptibility, given the extensive epigenetic reprogramming taking place in the spermatocyte precursors at this age. In conclusion, epidemiological studies in humans, mechanistic research, and biological plausibility, all support the notion that exposures in the prepuberty of males may influence the phenotype of future offspring.
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Affiliation(s)
- Cecilie Svanes
- Department of Global Public Health and Primary Care, Centre for International Health, University of Bergen, Bergen, Norway.,Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Randi J Bertelsen
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Oral Health Centre of Expertise Western Norway, Bergen, Norway
| | - Simone Accordini
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - John W Holloway
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton, UK.,Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Pétur Júlíusson
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Health Register Research and Development, National Institute of Public Health, Bergen, Norway
| | - Eistine Boateng
- Early Life Origins of Chronic Lung Disease, Research Center Borstel, Leibniz Lung Center, German Center for Lung Research (DZL), Borstel, Germany
| | - Susanne Krauss-Etchmann
- Early Life Origins of Chronic Lung Disease, Research Center Borstel, Leibniz Lung Center, German Center for Lung Research (DZL), Borstel, Germany.,Institute of Experimental Medicine, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Vivi Schlünssen
- Department of Public Health-Work, Environment and Health, Danish Ramazzini Centre, Aarhus University, Denmark.,National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Francisco Gómez-Real
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Gynaecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
| | - Svein Magne Skulstad
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
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163
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Ben Maamar M, Nilsson EE, Skinner MK. Epigenetic transgenerational inheritance, gametogenesis and germline development†. Biol Reprod 2021; 105:570-592. [PMID: 33929020 PMCID: PMC8444706 DOI: 10.1093/biolre/ioab085] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/12/2021] [Accepted: 04/22/2021] [Indexed: 12/14/2022] Open
Abstract
One of the most important developing cell types in any biological system is the gamete (sperm and egg). The transmission of phenotypes and optimally adapted physiology to subsequent generations is in large part controlled by gametogenesis. In contrast to genetics, the environment actively regulates epigenetics to impact the physiology and phenotype of cellular and biological systems. The integration of epigenetics and genetics is critical for all developmental biology systems at the cellular and organism level. The current review is focused on the role of epigenetics during gametogenesis for both the spermatogenesis system in the male and oogenesis system in the female. The developmental stages from the initial primordial germ cell through gametogenesis to the mature sperm and egg are presented. How environmental factors can influence the epigenetics of gametogenesis to impact the epigenetic transgenerational inheritance of phenotypic and physiological change in subsequent generations is reviewed.
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Affiliation(s)
- Millissia Ben Maamar
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, USA
| | - Eric E Nilsson
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, USA
| | - Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, USA
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164
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McCarthy DM, Bhide PG. Heritable consequences of paternal nicotine exposure: from phenomena to mechanisms†. Biol Reprod 2021; 105:632-643. [PMID: 34126634 PMCID: PMC8444703 DOI: 10.1093/biolre/ioab116] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/14/2021] [Accepted: 06/07/2021] [Indexed: 12/25/2022] Open
Abstract
Our understanding of the interactions between genetic and environmental factors in shaping behavioral phenotypes has expanded to include environment-induced epigenetic modifications and the intriguing possibility of their association with heritable behavioral phenotypes. The molecular basis of heritability of phenotypes arising from environment-induced epigenetic modifications is not well defined yet. However, phenomenological evidence in favor of it is accumulating rapidly. The resurgence of interest has led to focus on epigenetic modification of germ cells as a plausible mechanism of heritability. Perhaps partly because of practical reasons such as ease of access to male germ cells compared to female germ cells, attention has turned toward heritable effects of environmental influences on male founders. Public health implications of heritable effects of paternal exposures to addictive substances or to psycho-social factors may be enormous. Considering nicotine alone, over a billion people worldwide use nicotine-containing products, and the majority are men. Historically, the adverse effects of nicotine use by pregnant women received much attention by scientists and public policy experts alike. The implications of nicotine use by men for the physical and mental well-being of their children were not at the forefront of research until recently. Here, we review progress in the emerging field of heritable effects of paternal nicotine exposure and its implications for behavioral health of individuals in multiple generations.
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Affiliation(s)
- Deirdre M McCarthy
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, 32306, USA
| | - Pradeep G Bhide
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, 32306, USA
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165
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Abstract
AbstractThis article studies how social epidemiologists get involved in research carried out on rodent models to explore the biological pathways underpinning exposure to social adversity in early life. We analyze their interdisciplinary exchanges with biologists in a social epigenetics project—i.e., in the experimental study of molecular alterations following social exposures. We argue that social epidemiologists are ambivalent regarding the use of non-human animal models on two levels: first, in terms of whether such models provide scientific evidence useful to social epidemiology, and second, regarding whether such models help promote their conception of public health. While they maintain expectations towards rodent experiments by elevating their functional value over their representational potential, they fear that their research will contribute to a public health approach that focuses on individual responsibility rather than the social causes of health inequalities. This interdisciplinary project demonstrates the difficulties encountered when research in social epigenetics engages with the complexities of laboratory experiments and social environments, as well as the conflicting sociopolitical projects stemming from such research.
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166
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Repouskou A, Stamatakis A, Kitraki E. In utero exposure to phthalates and reproductive toxicity in rodents. Best Pract Res Clin Endocrinol Metab 2021; 35:101512. [PMID: 34266749 DOI: 10.1016/j.beem.2021.101512] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Phthalates, widely used as plasticizers, are contained in many everyday products. Human biomonitoring studies detect their presence in biological fluids of a large part of the population worldwide. Maternal exposure during pregnancy has been related with aberrations in the reproductive growth of male infants. Rodent studies show that gestational exposure to single phthalates elicits reproductive toxicity in both sexes. Early aberrations include inhibition of gonadal sex determining gene expression and steroidogenesis, histopathology, and disturbed gametogenesis, leading later in life to dysfunctions in sperm production and oocyte reserves. Animal studies of in utero exposure to mixtures of phthalates, better mimicking human exposures, revealed analogous reproductive dysfunctions with the single compounds, but also indicated the combined actions and cumulative effects exerted by these chemicals. Further understanding the underlying mechanisms and the species differences in phthalate-induced reproductive toxicity will help to improve the risk assessment for human exposure to these toxicants.
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Affiliation(s)
- Anastasia Repouskou
- Basic Sciences Lab, Faculty of Dentistry, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece.
| | - Antonios Stamatakis
- Biology- Biochemistry Lab, Faculty of Nursing, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece.
| | - Efthymia Kitraki
- Basic Sciences Lab, Faculty of Dentistry, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece.
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167
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Schuller A, Bellini C, Jenkins TG, Eden M, Matz J, Oakes J, Montrose L. Simulated Wildfire Smoke Significantly Alters Sperm DNA Methylation Patterns in a Murine Model. TOXICS 2021; 9:199. [PMID: 34564350 PMCID: PMC8473101 DOI: 10.3390/toxics9090199] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/20/2021] [Accepted: 08/26/2021] [Indexed: 12/15/2022]
Abstract
Wildfires are now a common feature of the western US, increasing in both intensity and number of acres burned over the last three decades. The effects of this changing wildfire and smoke landscape are a critical public and occupational health issue. While respiratory morbidity due to smoke exposure is a priority, evaluating the molecular underpinnings that explain recent extrapulmonary observations is necessary. Here, we use an Apoe-/- mouse model to investigate the epigenetic impact of paternal exposure to simulated wildfire smoke. We demonstrate that 40 days of exposure to smoke from Douglas fir needles induces sperm DNA methylation changes in adult mice. DNA methylation was measured by reduced representation bisulfite sequencing and varied significantly in 3353 differentially methylated regions, which were subsequently annotated to 2117 genes. The differentially methylated regions were broadly distributed across the mouse genome, but the vast majority (nearly 80%) were hypermethylated. Pathway analyses, using gene-derived and differentially methylated region-derived gene ontology terms, point to a number of developmental processes that may warrant future investigation. Overall, this study of simulated wildfire smoke exposure suggests paternal reproductive risks are possible with prolonged exposure.
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Affiliation(s)
- Adam Schuller
- Department of Public Health and Population Science, Boise State University, Boise, ID 83725, USA;
| | - Chiara Bellini
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA; (C.B.); (M.E.); (J.M.); (J.O.)
| | - Timothy G. Jenkins
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA;
| | - Matthew Eden
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA; (C.B.); (M.E.); (J.M.); (J.O.)
| | - Jacqueline Matz
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA; (C.B.); (M.E.); (J.M.); (J.O.)
| | - Jessica Oakes
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA; (C.B.); (M.E.); (J.M.); (J.O.)
| | - Luke Montrose
- Department of Public Health and Population Science, Boise State University, Boise, ID 83725, USA;
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168
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Gaspari L, Paris F, Kalfa N, Soyer-Gobillard MO, Sultan C, Hamamah S. Experimental Evidence of 2,3,7,8-Tetrachlordibenzo-p-Dioxin (TCDD) Transgenerational Effects on Reproductive Health. Int J Mol Sci 2021; 22:ijms22169091. [PMID: 34445797 PMCID: PMC8396488 DOI: 10.3390/ijms22169091] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/09/2021] [Accepted: 08/19/2021] [Indexed: 12/12/2022] Open
Abstract
Previous studies have demonstrated that endocrine disruptors (EDs) can promote the transgenerational inheritance of disease susceptibility. Among the many existing EDs, 2,3,7,8-tetrachlordibenzo-p-dioxin (TCDD) affects reproductive health, including in humans, following direct occupational exposure or environmental disasters, for instance the Agent Orange sprayed during the Vietnam War. Conversely, few studies have focused on TCDD multigenerational and transgenerational effects on human reproductive health, despite the high amount of evidence in animal models of such effects on male and female reproductive health that mimic human reproductive system disorders. Importantly, these studies show that paternal ancestral TCDD exposure substantially contributes to pregnancy outcome and fetal health, although pregnancy outcome is considered tightly related to the woman’s health. In this work, we conducted a systematic review of the literature and a knowledge synthesis in order (i) to describe the findings obtained in rodent models concerning TCDD transgenerational effects on reproductive health and (ii) to discuss the epigenetic molecular alterations that might be involved in this process. As ancestral toxicant exposure cannot be changed in humans, identifying the crucial reproductive functions that are negatively affected by such exposure may help clinicians to preserve male and female fertility and to avoid adverse pregnancy outcomes.
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Affiliation(s)
- Laura Gaspari
- Unité d’Endocrinologie-Gynécologie Pédiatrique, Service de Pédiatrie, CHU Montpellier, University of Montpellier, 34090 Montpellier, France; (L.G.); (F.P.); (C.S.)
- Centre de Référence Maladies Rares du Développement Génital, Constitutif Sud, CHU Montpellier, University of Montpellier, Hôpital Lapeyronie, 34090 Montpellier, France;
- INSERM 1203, Développement Embryonnaire Fertilité Environnement, University of Montpellier, 34295 Montpellier, France
| | - Françoise Paris
- Unité d’Endocrinologie-Gynécologie Pédiatrique, Service de Pédiatrie, CHU Montpellier, University of Montpellier, 34090 Montpellier, France; (L.G.); (F.P.); (C.S.)
- Centre de Référence Maladies Rares du Développement Génital, Constitutif Sud, CHU Montpellier, University of Montpellier, Hôpital Lapeyronie, 34090 Montpellier, France;
- INSERM 1203, Développement Embryonnaire Fertilité Environnement, University of Montpellier, 34295 Montpellier, France
| | - Nicolas Kalfa
- Centre de Référence Maladies Rares du Développement Génital, Constitutif Sud, CHU Montpellier, University of Montpellier, Hôpital Lapeyronie, 34090 Montpellier, France;
- Département de Chirurgie Viscérale et Urologique Pédiatrique, CHU Montpellier, University of Montpellier, Hôpital Lapeyronie, 34090 Montpellier, France
- Institut Debrest de Santé Publique IDESP, UMR INSERM, University of Montpellier, 34090 Montpellier, France
| | - Marie-Odile Soyer-Gobillard
- CNRS, Sorbonne University, 75006 Paris, France;
- Association Hhorages-France, 95270 Asnières-sur-Oise, France
| | - Charles Sultan
- Unité d’Endocrinologie-Gynécologie Pédiatrique, Service de Pédiatrie, CHU Montpellier, University of Montpellier, 34090 Montpellier, France; (L.G.); (F.P.); (C.S.)
| | - Samir Hamamah
- INSERM 1203, Développement Embryonnaire Fertilité Environnement, University of Montpellier, 34295 Montpellier, France
- Département de Biologie de la Reproduction, Biologie de la Reproduction/DPI et CECOS, CHU Montpellier, University of Montpellier, 34090 Montpellier, France
- Correspondence: ; Fax: +33-4-67-33-62-90
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169
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Rahman MS, Pang WK, Ryu DY, Park YJ, Ryu BY, Pang MG. Multigenerational impacts of gestational bisphenol A exposure on the sperm function and fertility of male mice. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125791. [PMID: 33839502 DOI: 10.1016/j.jhazmat.2021.125791] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/24/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
Growing evidence suggests that developmental exposure to bisphenol A (BPA)-a synthetic endocrine disruptor-causes atypical reproductive phenotypes that may persist for generations. However, the precise mechanism(s) by which BPA causes these adverse consequences is unclear. Here, pregnant female mice were orally exposed to 50 μg, 5 mg, and 50 mg BPA/kg body weight (bw)/day from 7 to 14 days of gestation. Corn oil treatments were used as control. The first filial generation (F1) and F2 males were used to generate F3 by mating them with unexposed females. High BPA doses impaired F1 and/or F1-F2 (multigenerational effect) male reproduction (i.e., disrupted testicular germ cell organization and spermatogenesis, altered sperm biochemical properties, and decreased sperm count, motility, and fertility) but not that of F3 males (transgenerational effect). Moreover, the observed multigenerational transmission of the abnormal reproductive traits was associated with alterations in the sperm DNA methylation patterns of specific male generations, with substantial proteomic changes in F1-F3 at the highest BPA dose. Given that the proteins related to male fertility and epigenetic modification are highly conserved among vertebrates, our findings may shed light on how exposure to environmental factors during pregnancy affects fertility in future generations in both humans and the other animals.
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Affiliation(s)
- Md Saidur Rahman
- 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
| | - Buom-Yong Ryu
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, Republic of Korea
| | - Myung-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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170
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Freudiger A, Josi D, Thünken T, Herder F, Flury JM, Marques DA, Taborsky M, Frommen JG. Ecological variation drives morphological differentiation in a highly social vertebrate. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13857] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Annika Freudiger
- Division of Behavioural Ecology Institute of Ecology and Evolution University of Bern Hinterkappelen Switzerland
- Conservation Ecology Evolution and Behaviour Research Group Ecology and Environment Research Centre Department for Natural Sciences Manchester Metropolitan University Manchester UK
| | - Dario Josi
- Division of Behavioural Ecology Institute of Ecology and Evolution University of Bern Hinterkappelen Switzerland
- Conservation Ecology Evolution and Behaviour Research Group Ecology and Environment Research Centre Department for Natural Sciences Manchester Metropolitan University Manchester UK
| | - Timo Thünken
- Division of Behavioural Ecology Institute of Ecology and Evolution University of Bern Hinterkappelen Switzerland
- Institute of Evolutionary Biology and Ecology University of Bonn Bonn Germany
| | - Fabian Herder
- Sektion Ichthyologie Zoologisches Forschungsmuseum Alexander Koenig Bonn Germany
| | - Jana M. Flury
- Sektion Ichthyologie Zoologisches Forschungsmuseum Alexander Koenig Bonn Germany
| | - David A. Marques
- Division of Aquatic Ecology and Evolution Institute of Ecology and Evolution University of Bern Bern Switzerland
- Department of Fish Ecology and Evolution Centre for Ecology and Evolution, and Biochemistry Swiss Federal Institute of Aquatic Science and Technology (EAWAG) Kastanienbaum Switzerland
| | - Michael Taborsky
- Division of Behavioural Ecology Institute of Ecology and Evolution University of Bern Hinterkappelen Switzerland
| | - Joachim G. Frommen
- Division of Behavioural Ecology Institute of Ecology and Evolution University of Bern Hinterkappelen Switzerland
- Conservation Ecology Evolution and Behaviour Research Group Ecology and Environment Research Centre Department for Natural Sciences Manchester Metropolitan University Manchester UK
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171
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Tando Y, Hiura H, Takehara A, Ito-Matsuoka Y, Arima T, Matsui Y. Epi-mutations for spermatogenic defects by maternal exposure to di(2-ethylhexyl) phthalate. eLife 2021; 10:70322. [PMID: 34319233 PMCID: PMC8318585 DOI: 10.7554/elife.70322] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/15/2021] [Indexed: 12/13/2022] Open
Abstract
Exposure to environmental factors during fetal development may lead to epigenomic modifications in fetal germ cells, altering gene expression and promoting diseases in successive generations. In mouse, maternal exposure to di(2-ethylhexyl) phthalate (DEHP) is known to induce defects in spermatogenesis in successive generations, but the mechanism(s) of impaired spermatogenesis are unclear. Here, we showed that maternal DEHP exposure results in DNA hypermethylation of promoters of spermatogenesis-related genes in fetal testicular germ cells in F1 mice, and hypermethylation of Hist1h2ba, Sycp1, and Taf7l, which are crucial for spermatogenesis, persisted from fetal testicular cells to adult spermatogonia, resulting in the downregulation of expression of these genes. Forced methylation of these gene promoters silenced expression of these loci in a reporter assay. These results suggested that maternal DEHP exposure-induced hypermethylation of Hist1h2ba, Sycp1, and Taf7l results in downregulation of these genes in spermatogonia and subsequent defects in spermatogenesis, at least in the F1 generation.
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Affiliation(s)
- Yukiko Tando
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Hitoshi Hiura
- Department of Bioscience, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan
| | - Asuka Takehara
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yumi Ito-Matsuoka
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Takahiro Arima
- Department of Informative Genetics, Environment and Genome Research Center, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yasuhisa Matsui
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Graduate School of Life Sciences, Tohoku University, Sendai, Japan.,Graduate School of Medicine, Tohoku University, Sendai, Japan
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172
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Robles-Matos N, Artis T, Simmons RA, Bartolomei MS. Environmental Exposure to Endocrine Disrupting Chemicals Influences Genomic Imprinting, Growth, and Metabolism. Genes (Basel) 2021; 12:1153. [PMID: 34440327 PMCID: PMC8393470 DOI: 10.3390/genes12081153] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 12/14/2022] Open
Abstract
Genomic imprinting is an epigenetic mechanism that results in monoallelic, parent-of-origin-specific expression of a small number of genes. Imprinted genes play a crucial role in mammalian development as their dysregulation result in an increased risk of human diseases. DNA methylation, which undergoes dynamic changes early in development, is one of the epigenetic marks regulating imprinted gene expression patterns during early development. Thus, environmental insults, including endocrine disrupting chemicals during critical periods of fetal development, can alter DNA methylation patterns, leading to inappropriate developmental gene expression and disease risk. Here, we summarize the current literature on the impacts of in utero exposure to endocrine disrupting chemicals on genomic imprinting and metabolism in humans and rodents. We evaluate how early-life environmental exposures are a potential risk factor for adult metabolic diseases. We also introduce our mouse model of phthalate exposure. Finally, we describe the potential of genomic imprinting to serve as an environmental sensor during early development and as a novel biomarker for postnatal health outcomes.
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Affiliation(s)
- Nicole Robles-Matos
- Epigenetics Institute, Center of Excellence in Environmental Toxicology, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, 9-122 Smilow Center for Translational Research, Philadelphia, PA 19104, USA;
| | - Tre Artis
- Division of Hematology/Oncology, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
| | - Rebecca A. Simmons
- Center of Excellence in Environmental Toxicology, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, 1308 Biomedical Research Building II/III, Philadelphia, PA 19104, USA;
| | - Marisa S. Bartolomei
- Epigenetics Institute, Center of Excellence in Environmental Toxicology, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, 9-122 Smilow Center for Translational Research, Philadelphia, PA 19104, USA;
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173
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McCarrey JR, Cheng K. Germ cells: ENCODE's forgotten cell type. Biol Reprod 2021; 105:761-766. [PMID: 34250539 DOI: 10.1093/biolre/ioab135] [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: 03/04/2021] [Revised: 06/15/2021] [Accepted: 07/06/2021] [Indexed: 11/12/2022] Open
Abstract
More than a decade ago, the ENCODE and NIH Epigenomics Roadmap consortia organized large multi-laboratory efforts to profile the epigenomes of >110 different mammalian somatic cell types. This generated valuable publicly accessible datasets that are being mined to reveal genome-wide patterns of a variety of different epigenetic parameters. This consortia approach facilitated the powerful and comprehensive multiparametric integrative analysis of the epigenomes in each cell type. However, no germ cell types were included among the cell types characterized by either of these consortia. Thus, comprehensive epigenetic profiling data is not generally available for the most evolutionarily important cells, male and female germ cells. We discuss the need for reproductive biologists to generate similar multiparametric epigenomic profiling datasets for both male and female germ cells at different developmental stages, and summarize our recent effort to derive such data for mammalian spermatogonial stem cells and progenitor spermatogonia.
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Affiliation(s)
- John R McCarrey
- Department of Biology, University of Texas at San Antonio, San Antonio, TX 78249 USA
| | - Keren Cheng
- Department of Biology, University of Texas at San Antonio, San Antonio, TX 78249 USA
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174
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Juengel JL, Cushman RA, Dupont J, Fabre S, Lea RG, Martin GB, Mossa F, Pitman JL, Price CA, Smith P. The ovarian follicle of ruminants: the path from conceptus to adult. Reprod Fertil Dev 2021; 33:621-642. [PMID: 34210385 DOI: 10.1071/rd21086] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/06/2021] [Indexed: 11/23/2022] Open
Abstract
This review resulted from an international workshop and presents a consensus view of critical advances over the past decade in our understanding of follicle function in ruminants. The major concepts covered include: (1) the value of major genes; (2) the dynamics of fetal ovarian development and its sensitivity to nutritional and environmental influences; (3) the concept of an ovarian follicle reserve, aligned with the rise of anti-Müllerian hormone as a controller of ovarian processes; (4) renewed recognition of the diverse and important roles of theca cells; (5) the importance of follicular fluid as a microenvironment that determines oocyte quality; (6) the 'adipokinome' as a key concept linking metabolic inputs with follicle development; and (7) the contribution of follicle development to the success of conception. These concepts are important because, in sheep and cattle, ovulation rate is tightly regulated and, as the primary determinant of litter size, it is a major component of reproductive efficiency and therefore productivity. Nowadays, reproductive efficiency is also a target for improving the 'methane efficiency' of livestock enterprises, increasing the need to understand the processes of ovarian development and folliculogenesis, while avoiding detrimental trade-offs as greater performance is sought.
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Affiliation(s)
- Jennifer L Juengel
- AgResearch Ltd, Invermay Agricultural Centre, Mosgiel, New Zealand; and Corresponding author
| | - Robert A Cushman
- Livestock Biosystems Research Unit, US Department of Agriculture, Agricultural Research Service, US Meat Animal Research Center, Clay Center, NE, USA
| | - Joëlle Dupont
- INRAE Institute UMR85 Physiologie de la Reproduction et des Comportements, Tours University, France
| | - Stéphane Fabre
- GenPhySE, Université de Toulouse, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement, Institut national polytechnique de Toulouse, Ecole nationale vétérinaire de Toulouse, Castanet Tolosan, France
| | - Richard G Lea
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
| | - Graeme B Martin
- UWA Institute of Agriculture, University of Western Australia, Perth, WA, Australia
| | - Francesca Mossa
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Italy
| | - Janet L Pitman
- School of Biological Sciences, Victoria University of Wellington, New Zealand
| | - Christopher A Price
- Faculty of Veterinary Medicine, Université de Montréal, Montréal, QC, Canada
| | - Peter Smith
- AgResearch Ltd, Invermay Agricultural Centre, Mosgiel, New Zealand
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175
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Zhang FL, Kong L, Zhao AH, Ge W, Yan ZH, Li L, De Felici M, Shen W. Inflammatory cytokines as key players of apoptosis induced by environmental estrogens in the ovary. ENVIRONMENTAL RESEARCH 2021; 198:111225. [PMID: 33971129 DOI: 10.1016/j.envres.2021.111225] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/02/2021] [Accepted: 04/22/2021] [Indexed: 06/12/2023]
Abstract
Natural and synthetic environmental estrogens (EEs), interfering with the physiological functions of the body's estrogens, are widespread and are rising much concern for their possible deleterious effects on human and animal health, in particular on reproduction. In fact, increasing evidence indicate that EEs can be responsible for a variety of disfunctions of the reproductive system especially in females such as premature ovarian insufficiency (POI). Because of their great structural diversity, the modes of action of EEs are controversial. One important way through which EEs exert their effects on reproduction is the induction of apoptosis in the ovary. In general, EEs can exert pro-and anti-apoptotic effects by agonizing or antagonizing numerous estrogen-dependent signaling pathways. In the present work, results concerning apoptotic pathways and diseases induced by representative EEs (such as zearalenone, bisphenol A and di-2-ethylhexyl phthalate), in ovaries throughout development are presented into an integrated network. By reviewing and elaborating these studies, we propose inflammatory factors, centered on the production of tumor necrosis factor (TNF), as a major cause of the induction of apoptosis by EEs in the mammalian ovary. As a consequence, potential strategies to prevent such EE effect are suggested.
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Affiliation(s)
- Fa-Li Zhang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, 266109, China
| | - Li Kong
- College of Life Sciences, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, 266109, China
| | - Ai-Hong Zhao
- Qingdao Academy of Agricultural Sciences, Qingdao, 266100, China
| | - Wei Ge
- College of Life Sciences, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zi-Hui Yan
- College of Life Sciences, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, 266109, China
| | - Lan Li
- College of Life Sciences, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, 266109, China
| | - Massimo De Felici
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, 00133, Italy.
| | - Wei Shen
- College of Life Sciences, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, 266109, China.
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176
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Zhou G, Ren L, Yin H, Liu J, Li X, Wang J, Li Y, Sang Y, Zhao Y, Zhou X, Sun Z. The alterations of miRNA and mRNA expression profile and their integration analysis induced by silica nanoparticles in spermatocyte cells. NANOIMPACT 2021; 23:100348. [PMID: 35559849 DOI: 10.1016/j.impact.2021.100348] [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: 12/04/2020] [Revised: 08/06/2021] [Accepted: 08/06/2021] [Indexed: 06/15/2023]
Abstract
Air pollution and the application of Silica nanoparticles (SiNPs) have increased the risk of human exposure to SiNPs. SiNPs are known to induce cytotoxicity in spermatocyte cells (GC-2spd cells) of mice and male reproductive system damage. However, the expression profiles of miRNA and mRNA and the molecular mechanism of miRNA-mRNA integration in reproductive toxicity induced by SiNPs in GC-2spd cells are still unclear. Therefore, GC-2spd cells were divided into 0 μg/mL and 5 μg/mL SiNPs groups, and the cells were collected and analyzed after passaging for 30 generations using miRNA microarray and Illumina high-throughput sequencing (Illumina HiSeq) for the integrated analysis of miRNA and mRNA expression. Both miRNA Microarray and Illumina Hiseq identified 15 significant differentially expressed miRNAs and 1648 significant differentially expressed mRNAs. Gene Ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis, and miRNA-gene-pathway-network analysis revealed 15 significant differentially expressed miRNAs that could regulate the DNA replication and the fatty acid metabolism, respectively. Furthermore, the mRNA-mRNA regulatory network analysis revealed that Pkfl (phosphofructokinase, liver, B-type) and DHCR24 (24-dehydrocholesterol reductase) were highly expressed, but also affected DNA replication and fatty acid metabolism in SiNPs-treated GC-2spd cells. Additionally, miRNA-mRNA integration analysis revealed that miRNA-138-1-3p might have a regulatory relationship with fatty acid metabolism and DNA replication. It is confirmed that SiNPs could decrease the expression of 10 miRNAs and increase the expression of 5 miRNAs. These findings suggest that the cytotoxicity of GC-2spd cells induced by SiNPs depends on the deregulation of multiple miRNAs, which regulate the DNA replication and fatty acid metabolism. Our results are the first to establish an integrated analysis of miRNA-mRNA interactions and mRNA-mRNA and defines multiple pathways involved in SiNPs-treated GC-2spd cells.
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Affiliation(s)
- Guiqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Lihua Ren
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; School of Nursing, Peking University, Beijing 100191, China
| | - Haiping Yin
- Gansu International Travel Healthcare Center, Lanzhou, Gansu 730030, China
| | - Jianhui Liu
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China
| | - Xiangyang Li
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Ji Wang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Yanbo Li
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Yujian Sang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Yanzhi Zhao
- Yanjing Medical College, Capital Medical University, Beijing 101300, China.
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
| | - Zhiwei Sun
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
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177
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Karlsson O, Svanholm S, Eriksson A, Chidiac J, Eriksson J, Jernerén F, Berg C. Pesticide-induced multigenerational effects on amphibian reproduction and metabolism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 775:145771. [PMID: 33621874 PMCID: PMC7615066 DOI: 10.1016/j.scitotenv.2021.145771] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/06/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
Underlying drivers of species extinctions need to be better understood for effective conservation of biodiversity. Nearly half of all amphibian species are at risk of extinction, and pollution may be a significant threat as seasonal high-level agrochemical use overlaps with critical windows of larval development. The potential of environmental chemicals to reduce the fitness of future generations may have profound ecological and evolutionary implications. This study characterized effects of male developmental exposure to environmentally relevant concentrations of the anti-androgenic pesticide linuron over two generations of offspring in Xenopus tropicalis frogs. The adult male offspring of pesticide-exposed fathers (F1) showed reduced body size, decreased fertility, and signs of endocrine system disruption. Impacts were further propagated to the grand-offspring (F2), providing evidence of transgenerational effects in amphibians. The adult F2 males demonstrated increased weight and fat body palmitoleic-to-palmitic acid ratio, and decreased plasma glucose levels. The study provides important cross-species evidence of paternal epigenetic inheritance and pollutant-induced transgenerational toxicity, supporting a causal and complex role of environmental contamination in the ongoing species extinctions, particularly of amphibians.
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Affiliation(s)
- Oskar Karlsson
- Science for Life Laboratory, Department of Environmental Sciences, Stockholm University, Stockholm 114 18, Sweden.
| | - Sofie Svanholm
- Department of Environmental Toxicology, Evolutionary Biology Centre (EBC), Uppsala University, SE-752 36 Uppsala, Sweden
| | - Andreas Eriksson
- Department of Environmental Toxicology, Evolutionary Biology Centre (EBC), Uppsala University, SE-752 36 Uppsala, Sweden
| | - Joseph Chidiac
- Department of Pharmaceutical Biosciences, Uppsala University, Box 591, 75124 Uppsala, Sweden
| | - Johanna Eriksson
- Department of Pharmaceutical Biosciences, Uppsala University, Box 591, 75124 Uppsala, Sweden
| | - Fredrik Jernerén
- Department of Pharmaceutical Biosciences, Uppsala University, Box 591, 75124 Uppsala, Sweden
| | - Cecilia Berg
- Department of Environmental Toxicology, Evolutionary Biology Centre (EBC), Uppsala University, SE-752 36 Uppsala, Sweden
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178
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Defective folate metabolism causes germline epigenetic instability and distinguishes Hira as a phenotype inheritance biomarker. Nat Commun 2021; 12:3714. [PMID: 34140513 PMCID: PMC8211854 DOI: 10.1038/s41467-021-24036-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 05/29/2021] [Indexed: 02/02/2023] Open
Abstract
The mechanism behind transgenerational epigenetic inheritance is unclear, particularly through the maternal grandparental line. We previously showed that disruption of folate metabolism in mice by the Mtrr hypomorphic mutation results in transgenerational epigenetic inheritance of congenital malformations. Either maternal grandparent can initiate this phenomenon, which persists for at least four wildtype generations. Here, we use genome-wide approaches to reveal genetic stability in the Mtrr model and genome-wide differential DNA methylation in the germline of Mtrr mutant maternal grandfathers. We observe that, while epigenetic reprogramming occurs, wildtype grandprogeny and great grandprogeny exhibit transcriptional changes that correlate with germline methylation defects. One region encompasses the Hira gene, which is misexpressed in embryos for at least three wildtype generations in a manner that distinguishes Hira transcript expression as a biomarker of maternal phenotypic inheritance.
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179
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Epigenetic inheritance of DNA methylation changes in fish living in hydrogen sulfide-rich springs. Proc Natl Acad Sci U S A 2021; 118:2014929118. [PMID: 34185679 PMCID: PMC8255783 DOI: 10.1073/pnas.2014929118] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Environmental factors can promote phenotypic variation through alterations in the epigenome and facilitate adaptation of an organism to the environment. Although hydrogen sulfide is toxic to most organisms, the fish Poecilia mexicana has adapted to survive in environments with high levels that exceed toxicity thresholds by orders of magnitude. Epigenetic changes in response to this environmental stressor were examined by assessing DNA methylation alterations in red blood cells, which are nucleated in fish. Males and females were sampled from sulfidic and nonsulfidic natural environments; individuals were also propagated for two generations in a nonsulfidic laboratory environment. We compared epimutations between the sexes as well as field and laboratory populations. For both the wild-caught (F0) and the laboratory-reared (F2) fish, comparing the sulfidic and nonsulfidic populations revealed evidence for significant differential DNA methylation regions (DMRs). More importantly, there was over 80% overlap in DMRs across generations, suggesting that the DMRs have stable generational inheritance in the absence of the sulfidic environment. This is an example of epigenetic generational stability after the removal of an environmental stressor. The DMR-associated genes were related to sulfur toxicity and metabolic processes. These findings suggest that adaptation of P. mexicana to sulfidic environments in southern Mexico may, in part, be promoted through epigenetic DNA methylation alterations that become stable and are inherited by subsequent generations independent of the environment.
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180
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Hao N, Xin H, Shi X, Xin J, Zhang H, Guo S, Wang Z, Hao C. Paternal reprogramming-escape histone H3K4me3 marks located within promoters of RNA splicing genes. Bioinformatics 2021; 37:1039-1044. [PMID: 33119058 PMCID: PMC8150124 DOI: 10.1093/bioinformatics/btaa920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/26/2020] [Accepted: 10/15/2020] [Indexed: 01/17/2023] Open
Abstract
Motivation Exposure of mouse embryos to atrazine decreased histone tri-methylation at lysine 4 (H3K4me3) and increased expression of alternatively spliced RNA in the third generation. Specificity protein (SP) family motifs were enriched in the promoters of genes encoding differentially expressed alternative transcripts. Results H3K4me3 chromatin immunoprecipitation sequencing (ChIP-seq) of mouse sperm, preimplantation embryo development and male gonad primordial germ cells (PGCs) were analysed to identify the paternal reprogramming-escape H3K4me3 regions (RERs). In total, 251 RERs selected harbour H3K4me3 marks in sperm, with signals occurring in the paternal genome during early development and in male gonad PGCs, and 179 genes had RERs within 1 kb of transcription start sites (TSSs). These genes were significantly enriched in the gene ontology term ‘RNA splicing’, and SP1/SP2/SP3 motifs were enriched in RER-associated H3K4me3 peaks. Overall, the H3K4me3 marks within TSSs of RNA splicing genes survived two rounds of the epigenetic reprogramming process. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Nan Hao
- College of Pharmacy, Linyi University, Linyi 276000, China.,School of Mathematics and Statistics, Wuhan University, Wuhan 430072, China
| | - Huawei Xin
- College of Pharmacy, Linyi University, Linyi 276000, China
| | - Xiaowei Shi
- College of Pharmacy, Linyi University, Linyi 276000, China
| | - Jie Xin
- College of Pharmacy, Linyi University, Linyi 276000, China
| | - Haijuan Zhang
- College of Pharmacy, Linyi University, Linyi 276000, China
| | - Shaofen Guo
- College of Pharmacy, Linyi University, Linyi 276000, China
| | - Zhen Wang
- College of Pharmacy, Linyi University, Linyi 276000, China
| | - Chunxiang Hao
- College of Pharmacy, Linyi University, Linyi 276000, China
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181
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Gagliardi L, Williams TC. Commentary: Descent from the aerial palace. Int J Epidemiol 2021; 49:1870-1873. [PMID: 33279998 DOI: 10.1093/ije/dyaa206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Luigi Gagliardi
- Division of Neonatology and Pediatrics, Ospedale Versilia, Viareggio, Azienda USL Toscana Nord Ovest, Pisa, Italy
| | - Thomas C Williams
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, UK
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182
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Cheng Y, Vechtova P, Fussy Z, Sterba J, Linhartová Z, Rodina M, Tučková V, Gela D, Samarin AM, Lebeda I, Xin M, Zhang S, Rahi D, Linhart O. Changes in Phenotypes and DNA Methylation of In Vitro Aging Sperm in Common Carp Cyprinus carpio. Int J Mol Sci 2021; 22:5925. [PMID: 34073009 PMCID: PMC8198300 DOI: 10.3390/ijms22115925] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/24/2021] [Accepted: 05/28/2021] [Indexed: 12/11/2022] Open
Abstract
The purpose of the current study was to analyze phenotypic and functional characteristics of common carp (Cyprinus carpio) spermatozoa during in vitro aging and to investigate whether global DNA methylation is affected by sperm aging. Milt was collected from five individual males, stored in vitro on ice in a refrigerator for up to 96 h post stripping (HPS) and used to fertilize eggs with intervals of 1, 24 and 96 h. Computer-assisted sperm analysis and a S3e Cell Sorter was employed to determine the spermatozoa phenotypic characteristics (motility, velocity, concentration and viability). In addition, pH and osmolality of the seminal fluid and the capacity of the spermatozoa to fertilize, hatching rate and health of the resulting embryos were examined at different aging times. Whole-genome bisulfite sequencing was used to compare the global and gene-specific DNA methylation in fresh and aged spermatozoa. The results demonstrated that spermatozoa aging in common carp significantly affects their performance and thus the success of artificial fertilization. The methylation level at the cytosine-phosphate-guanine (CpG) sites increased significantly with 24 HPS spermatozoa compared to the fresh group at 1 HPS and then decreased significantly at 96 HPS. A more detailed investigation of gene specific differences in the DNA methylation was hindered by incomplete annotation of the C. carpio genome in the public databases.
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Affiliation(s)
- Yu Cheng
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - Pavlina Vechtova
- Faculty of Science, Institute of Chemistry and Biochemistry, University of South Bohemia in Ceske Budejovice, Branisovska 1760, 37005 Ceske Budejovice, Czech Republic; (P.V.); (Z.F.); (J.S.)
- Biology Centre of Academy of Sciences of the Czech Republic, Institute of Parasitology, Branišovská 31, 37005 České Budějovice, Czech Republic
| | - Zoltan Fussy
- Faculty of Science, Institute of Chemistry and Biochemistry, University of South Bohemia in Ceske Budejovice, Branisovska 1760, 37005 Ceske Budejovice, Czech Republic; (P.V.); (Z.F.); (J.S.)
| | - Jan Sterba
- Faculty of Science, Institute of Chemistry and Biochemistry, University of South Bohemia in Ceske Budejovice, Branisovska 1760, 37005 Ceske Budejovice, Czech Republic; (P.V.); (Z.F.); (J.S.)
| | - Zuzana Linhartová
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - Marek Rodina
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - Vladimíra Tučková
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - David Gela
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - Azin Mohagheghi Samarin
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - Ievgen Lebeda
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - Miaomiao Xin
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
- College of Life Science, Northwest University, Xi’an 710069, China
| | - Songpei Zhang
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - Deepali Rahi
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
| | - Otomar Linhart
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; (Y.C.); (Z.L.); (M.R.); (V.T.); (D.G.); (A.M.S.); (I.L.); (M.X.); (S.Z.); (D.R.)
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183
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Rossetti MF, Canesini G, Lorenz V, Milesi MM, Varayoud J, Ramos JG. Epigenetic Changes Associated With Exposure to Glyphosate-Based Herbicides in Mammals. Front Endocrinol (Lausanne) 2021; 12:671991. [PMID: 34093442 PMCID: PMC8177816 DOI: 10.3389/fendo.2021.671991] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 05/03/2021] [Indexed: 01/01/2023] Open
Abstract
Glyphosate is a phosphonomethyl amino acid derivative present in a number of non-selective and systemic herbicides. During the last years the use of glyphosate-based herbicide (GBH) has been increasing exponentially around the world, including Argentina. This fact added to the detection of glyphosate, and its main metabolite, amino methylphosphonic acid (AMPA), in environmental matrices such as soil, sediments, and food, has generated great concern about its risks for humans, animals, and environment. During the last years, there were controversy and intense debate regarding the toxicological effects of these compounds associated with the endocrine system, cancer, reproduction, and development. The mechanisms of action of GBH and their metabolites are still under investigation, although recent findings have shown that they could comprise epigenetic modifications. These are reversible mechanisms linked to tissue-specific silencing of gene expression, genomic imprinting, and tumor growth. Particularly, glyphosate, GBH, and AMPA have been reported to produce changes in global DNA methylation, methylation of specific genes, histone modification, and differential expression of non-coding RNAs in human cells and rodents. Importantly, the epigenome could be heritable and could lead to disease long after the exposure has ended. This mini-review summarizes the epigenetic changes produced by glyphosate, GBHs, and AMPA in humans and rodents and proposes it as a potential mechanism of action through which these chemical compounds could alter body functions.
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Affiliation(s)
- María Florencia Rossetti
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Guillermina Canesini
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Cátedra de Patología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Virginia Lorenz
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - María Mercedes Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Jorge Guillermo Ramos
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
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184
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Hung JH, Cheng HY, Tsai YC, Pan HA, Omar HA, Chiu CC, Su YM, Lin YM, Teng YN. LRWD1 expression is regulated through DNA methylation in human testicular embryonal carcinoma cells. Basic Clin Androl 2021; 31:12. [PMID: 34011267 PMCID: PMC8136200 DOI: 10.1186/s12610-021-00130-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 03/30/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Sperm growth and maturation are correlated with the expression levels of Leucine-rich repeat and WD repeat-containing protein 1 (LRWD1), a widely expressed protein in the human testicles. The decrease in LRWD1 cellular level was linked to the reduction in cell growth and mitosis and the rise in cell microtubule atrophy rates. Since DNA methylation has a major regulatory role in gene expression, this study aimed at exploring the effect of the modulation of DNA methylation on LRWD1 expression levels. RESULTS The results revealed the presence of a CpG island up of 298 bps (- 253 ~ + 45) upon LRWD1 promoter in NT2/D1 cells. The hypermethylation of the LRWD1 promoter was linked to a reduction in the transcription activity in NT2/D1 cells, as indicated by luciferase reporter assay. The methylation activator, floxuridine, confirmed the decrease in the LRWD1 promoter transcriptional activity. On the other hand, 5-Aza-2'-deoxycytidine (5-Aza-dc, methylation inhibitor), significantly augmented LRWD1 promoter activity and the expression levels of mRNA and proteins. Furthermore, DNA methylation status of LRWD1 promoter in human sperm genomic DNA samples was analyzed. The results indicated that methylation of LRWD1 promoter was correlated to sperm activity. CONCLUSIONS Thus, the regulation of LRWD1 expression is correlated with the methylation status of LRWD1 promoter, which played a significant role in the modulation of spermatogenesis, sperm motility, and vitality. Based on these results, the methylation status of LRWD1 promoter may serve as a novel molecular diagnostic marker or a therapeutic target in males' infertility.
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Affiliation(s)
- Jui-Hsiang Hung
- Department of Biotechnology, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Han-Yi Cheng
- Department of Biological Sciences and Technology, National University of Tainan, No.33, Sec. 2, Shulin St., West Central District, Tainan City, 700, Taiwan
| | - Yung-Chieh Tsai
- Department of Obstetrics and Gynecology, Chi-Mei Medical Center; Department of Sport Management, and Department of Biotechnology, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | | | - Hany A Omar
- Sharjah Institute for Medical Research and College of Pharmacy, University of Sharjah, Sharjah, 27272, United Arab Emirates
- Department of Pharmacology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yin-Mei Su
- Department of Biological Sciences and Technology, National University of Tainan, No.33, Sec. 2, Shulin St., West Central District, Tainan City, 700, Taiwan
| | - Yung-Ming Lin
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Yen-Ni Teng
- Department of Biological Sciences and Technology, National University of Tainan, No.33, Sec. 2, Shulin St., West Central District, Tainan City, 700, Taiwan.
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185
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Karlsson O, Rocklöv J, Lehoux AP, Bergquist J, Rutgersson A, Blunt MJ, Birnbaum LS. The human exposome and health in the Anthropocene. Int J Epidemiol 2021; 50:378-389. [PMID: 33349868 PMCID: PMC8128460 DOI: 10.1093/ije/dyaa231] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2020] [Indexed: 12/13/2022] Open
Affiliation(s)
- Oskar Karlsson
- Science for Life Laboratory, Department of Environmental Science, Stockholm University, Stockholm, Sweden
| | - Joacim Rocklöv
- Department of Public Health and Clinical Medicine, Section of Sustainable Health, Umeå University, Umeå, Sweden
| | - Alizée P Lehoux
- Department of Earth Sciences, Uppsala University, Uppsala, Sweden
| | - Jonas Bergquist
- Department of Chemistry-BMC, Analytical Chemistry and Neurochemistry, Uppsala University, Uppsala, Sweden
| | - Anna Rutgersson
- Department of Earth Sciences, Uppsala University, Uppsala, Sweden
| | - Martin J Blunt
- Department of Earth Science & Engineering, Imperial College London, London, UK
| | - Linda S Birnbaum
- National Institute of Environmental Health Sciences, National Toxicology Program, Durham, NC, USA
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186
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Ivimey-Cook ER, Sales K, Carlsson H, Immler S, Chapman T, Maklakov AA. Transgenerational fitness effects of lifespan extension by dietary restriction in Caenorhabditis elegans. Proc Biol Sci 2021; 288:20210701. [PMID: 33975472 PMCID: PMC8113902 DOI: 10.1098/rspb.2021.0701] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 04/15/2021] [Indexed: 12/28/2022] Open
Abstract
Dietary restriction (DR) increases lifespan in a broad variety of organisms and improves health in humans. However, long-term transgenerational consequences of dietary interventions are poorly understood. Here, we investigated the effect of DR by temporary fasting (TF) on mortality risk, age-specific reproduction and fitness across three generations of descendants in Caenorhabditis elegans. We show that while TF robustly reduces mortality risk and improves late-life reproduction of the individuals subject to TF (P0), it has a wide range of both positive and negative effects on their descendants (F1-F3). Remarkably, great-grandparental exposure to TF in early life reduces fitness and increases mortality risk of F3 descendants to such an extent that TF no longer promotes a lifespan extension. These findings reveal that transgenerational trade-offs accompany the instant benefits of DR, underscoring the need to consider fitness of future generations in pursuit of healthy ageing.
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Affiliation(s)
- Edward R. Ivimey-Cook
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Kris Sales
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Hanne Carlsson
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Simone Immler
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Tracey Chapman
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Alexei A. Maklakov
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
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187
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Maurice C, Dalvai M, Lambrot R, Deschênes A, Scott-Boyer MP, McGraw S, Chan D, Côté N, Ziv-Gal A, Flaws JA, Droit A, Trasler J, Kimmins S, Bailey JL. Early-Life Exposure to Environmental Contaminants Perturbs the Sperm Epigenome and Induces Negative Pregnancy Outcomes for Three Generations via the Paternal Lineage. EPIGENOMES 2021; 5:epigenomes5020010. [PMID: 34968297 PMCID: PMC8594730 DOI: 10.3390/epigenomes5020010] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 04/27/2021] [Indexed: 12/13/2022] Open
Abstract
Due to the grasshopper effect, the Arctic food chain in Canada is contaminated with persistent organic pollutants (POPs) of industrial origin, including polychlorinated biphenyls and organochlorine pesticides. Exposure to POPs may be a contributor to the greater incidence of poor fetal growth, placental abnormalities, stillbirths, congenital defects and shortened lifespan in the Inuit population compared to non-Aboriginal Canadians. Although maternal exposure to POPs is well established to harm pregnancy outcomes, paternal transmission of the effects of POPs is a possibility that has not been well investigated. We used a rat model to test the hypothesis that exposure to POPs during gestation and suckling leads to developmental defects that are transmitted to subsequent generations via the male lineage. Indeed, developmental exposure to an environmentally relevant Arctic POPs mixture impaired sperm quality and pregnancy outcomes across two subsequent, unexposed generations and altered sperm DNA methylation, some of which are also observed for two additional generations. Genes corresponding to the altered sperm methylome correspond to health problems encountered in the Inuit population. These findings demonstrate that the paternal methylome is sensitive to the environment and that some perturbations persist for at least two subsequent generations. In conclusion, although many factors influence health, paternal exposure to contaminants plays a heretofore-underappreciated role with sperm DNA methylation contributing to the molecular underpinnings involved.
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Affiliation(s)
- Clotilde Maurice
- Research Centre on Reproduction and Intergenerational Health, Department of Animal Sciences, Université Laval, Quebec City, QC G1V 0A6, Canada; (C.M.); (M.D.)
| | - Mathieu Dalvai
- Research Centre on Reproduction and Intergenerational Health, Department of Animal Sciences, Université Laval, Quebec City, QC G1V 0A6, Canada; (C.M.); (M.D.)
| | - Romain Lambrot
- Department of Animal Sciences, McGill University, Ste. Anne de Bellevue, Quebec, QC H9X 3V9, Canada; (R.L.); (S.K.)
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Astrid Deschênes
- Department of Molecular Medicine, Research Center of CHU of Quebec City, Université Laval, Quebec City, QC G1V 4G, Canada; (A.D.); (M.-P.S.-B.); (A.D.)
| | - Marie-Pier Scott-Boyer
- Department of Molecular Medicine, Research Center of CHU of Quebec City, Université Laval, Quebec City, QC G1V 4G, Canada; (A.D.); (M.-P.S.-B.); (A.D.)
| | - Serge McGraw
- Research Center of CHU Sainte-Justine, Department of Biochemistry and Molecular Medicine, Université de Montral, Montreal, QC H3T 1C5, Canada;
| | - Donovan Chan
- Research Institute of the McGill University Health Centre, Montreal, QC H3Z 2Z3, Canada; (D.C.); (J.T.)
- Departments of Pediatrics, Human Genetics and Pharmacology & Therapeutics, McGill University, Montreal, QC H3Z 2Z3, Canada
| | - Nancy Côté
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC G1V 4G5, Canada;
| | - Ayelet Ziv-Gal
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, IL 61802, USA; (A.Z.-G.); (J.A.F.)
| | - Jodi A. Flaws
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, IL 61802, USA; (A.Z.-G.); (J.A.F.)
| | - Arnaud Droit
- Department of Molecular Medicine, Research Center of CHU of Quebec City, Université Laval, Quebec City, QC G1V 4G, Canada; (A.D.); (M.-P.S.-B.); (A.D.)
| | - Jacquetta Trasler
- Research Institute of the McGill University Health Centre, Montreal, QC H3Z 2Z3, Canada; (D.C.); (J.T.)
- Departments of Pediatrics, Human Genetics and Pharmacology & Therapeutics, McGill University, Montreal, QC H3Z 2Z3, Canada
| | - Sarah Kimmins
- Department of Animal Sciences, McGill University, Ste. Anne de Bellevue, Quebec, QC H9X 3V9, Canada; (R.L.); (S.K.)
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Janice L. Bailey
- Research Centre on Reproduction and Intergenerational Health, Department of Animal Sciences, Université Laval, Quebec City, QC G1V 0A6, Canada; (C.M.); (M.D.)
- Correspondence: ; Tel.: +1-418-643-3230
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188
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Rahman MS, Pang WK, Ryu DY, Park YJ, Pang MG. Multigenerational and transgenerational impact of paternal bisphenol A exposure on male fertility in a mouse model. Hum Reprod 2021; 35:1740-1752. [PMID: 32644108 DOI: 10.1093/humrep/deaa139] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 04/27/2020] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION How does paternal exposure to bisphenol A (BPA) affect the fertility of male offspring in mice in future generations? SUMMARY ANSWER Paternal exposure to BPA adversely affects spermatogenesis, several important sperm functions and DNA methylation patterns in spermatozoa, which have both multigenerational (in F0 and F1) and partial transgenerational (mainly noticed in F2, but F3) impacts on the fertility of the offspring. WHAT IS KNOWN ALREADY BPA, a synthetic endocrine disruptor, is used extensively to manufacture polycarbonate plastics and epoxy resins. Growing evidence suggests that exposure to BPA during the developmental stages results in atypical reproductive phenotypes that could persist for generations to come. STUDY DESIGN, SIZE, DURATION CD-1 male mice (F0) were treated with BPA (5 or 50 mg/kg body weight per day (bw/day)) or ethinylestradiol (EE) (0.4 μg/kg bw/day) for 6 weeks. Control mice were treated with vehicle (corn oil) only. The treated male mice were bred with untreated female mice to produce first filial generation (F1 offspring). The F2 and F3 offspring were produced similarly, without further exposure to BPA. PARTICIPANTS/MATERIALS, SETTING, METHODS Histological changes in the testis along with functional, biochemical and epigenetic (DNA methylation) properties of spermatozoa were investigated. Subsequently, each parameter of the F0-F3 generations was compared between BPA-treated mice and control mice. MAIN RESULTS AND THE ROLE OF CHANCE Paternal BPA exposure disrupted spermatogenesis by decreasing the size and number of testicular seminiferous epithelial cells, which eventually led to a decline in the total sperm count of F0-F2 offspring (P < 0.05). We further showed that a high BPA dose decreased sperm motility in F0-F2 males by mediating the overproduction of reactive oxygen species (F0-F1) and decreasing intracellular ATP (F0-F2) in spermatozoa (P < 0.05). These changes in spermatozoa were associated with altered global DNA methylation patterns in the spermatozoa of F0-F3 males (P < 0.05). Furthermore, we noticed that BPA compromised sperm fertility in mice from the F0-F2 (in the both dose groups) and F3 generations (in the high-dose group only). The overall reproductive toxicity of BPA was equivalent to or higher (high dose) than that of the tested dose of EE. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Further research is required to determine the variables (e.g. lowest BPA dose) that are capable of producing changes in sperm function and fertility in future generations. WIDER IMPLICATIONS OF THE FINDINGS These results may shed light on how occupational exposure to BPA can affect offspring fertility in humans. STUDY FUNDING/COMPETING INTEREST(S) This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (Grant No. NRF-2018R1A6A1A03025159). M.S.R. was supported by Korea Research Fellowship Program through the NRF funded by the Ministry of Science and ICT (Grant No. 2017H1D3A1A02013844). There are no competing interests.
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Affiliation(s)
- Md Saidur Rahman
- Department of Animal Science & Technology, BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, Republic of Korea
| | - Won-Ki Pang
- Department of Animal Science & Technology, BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, Republic of Korea
| | - Do-Yeal Ryu
- Department of Animal Science & Technology, BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, Republic of Korea
| | - Yoo-Jin Park
- Department of Animal Science & Technology, BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, Republic of Korea
| | - Myung-Geol Pang
- Department of Animal Science & Technology, BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, Republic of Korea
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189
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Vaughan DA, Tirado E, Garcia D, Datta V, Sakkas D. DNA fragmentation of sperm: a radical examination of the contribution of oxidative stress and age in 16 945 semen samples. Hum Reprod 2021; 35:2188-2196. [PMID: 32976601 DOI: 10.1093/humrep/deaa159] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/28/2020] [Indexed: 02/07/2023] Open
Abstract
STUDY QUESTION What is the relationship between sperm DNA fragmentation and oxidative stress (OS) with increasing male age? SUMMARY ANSWER Sperm DNA fragmentation increases with age and is likely related to both defective spermatogenesis and increasing OS levels. WHAT IS KNOWN ALREADY Sperm quality declines with age. The presence of DNA damage in a high fraction of spermatozoa from a raw semen sample is associated with lower male fertility in natural conception and intrauterine insemination. STUDY DESIGN, SIZE, DURATION A retrospective cohort study of 16 945 semen samples analysed at a single reference laboratory between January 2010 and December 2018. PARTICIPANTS/MATERIALS, SETTING, METHODS All males were undergoing an infertility evaluation. The cohort was divided into seven age categories: <30, 30-34, 35-39, 40-44, 45-49, 50 to <54 and ≥55 years. The mean age was 37.6 years (SD 6.8). Sperm DNA fragmentation index (DFI) and high DNA stainability (HDS) were calculated using flow cytometry. OS levels were measured using the oxidative stress adducts (OSA) test, by spectrophotometry. ANOVA with weighted polynomial contrast analysis was used to evaluate trends for DFI, OSA and HDS values across age categories. MAIN RESULTS AND THE ROLE OF CHANCE Mean DFI significantly increased across all age groups (Ptrend < 0.001). OSA was lowest in patients <30 years old (mean 3.6, SD 1.0) and also increased as age increased (Ptrend < 0.001). There was a statistically significant difference between age groups for each of the three parameters (P < 0.001). There was a significant linear trend for DFI, OSA and HDS across the seven age categories (P < 0.001). Among patients with high DFI, there was a decreasing age-dependent trend in the patients observed with high OSA (P < 0.001). LIMITATIONS, REASONS FOR CAUTION This is a retrospective study. All males included in the study were undergoing a work-up for infertility and may not be representative of a fertile population. Additional patient demographics and clinical data were not available. WIDER IMPLICATIONS OF THE FINDINGS DNA and/or oxidative damage in sperm may be just as important to understand as the chromosomal aberrations that are carried in the oocyte. Further studies are needed to evaluate the effect of advancing paternal age on the male genome and, ultimately, on the health of the offspring. STUDY FUNDING/COMPETING INTEREST(S) No funding was obtained for this study. V.D. is an employee of Reprosource/Quest Diagnostics. D.S. reports he was a Scientific Advisor to Cooper Surgical. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- D A Vaughan
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA 02115, USA.,Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA 02115, USA.,Boston IVF, Waltham, MA 02445, USA
| | - E Tirado
- ReproSource Fertility Diagnostics, Marlborough, MA 01752, USA
| | - D Garcia
- Clinica EUGIN, Barcelona 08029, Spain
| | - V Datta
- ReproSource Fertility Diagnostics, Marlborough, MA 01752, USA
| | - D Sakkas
- Boston IVF, Waltham, MA 02445, USA
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190
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Cho YD, Kim WJ, Ryoo HM, Kim HG, Kim KH, Ku Y, Seol YJ. Current advances of epigenetics in periodontology from ENCODE project: a review and future perspectives. Clin Epigenetics 2021; 13:92. [PMID: 33902683 PMCID: PMC8077755 DOI: 10.1186/s13148-021-01074-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 04/12/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The Encyclopedia of DNA Elements (ENCODE) project has advanced our knowledge of the functional elements in the genome and epigenome. The aim of this article was to provide the comprehension about current research trends from ENCODE project and establish the link between epigenetics and periodontal diseases based on epigenome studies and seek the future direction. MAIN BODY Global epigenome research projects have emphasized the importance of epigenetic research for understanding human health and disease, and current international consortia show an improved interest in the importance of oral health with systemic health. The epigenetic studies in dental field have been mainly conducted in periodontology and have focused on DNA methylation analysis. Advances in sequencing technology have broadened the target for epigenetic studies from specific genes to genome-wide analyses. CONCLUSIONS In line with global research trends, further extended and advanced epigenetic studies would provide crucial information for the realization of comprehensive dental medicine and expand the scope of ongoing large-scale research projects.
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Affiliation(s)
- Young-Dan Cho
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul, 03080, Korea
| | - Woo-Jin Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Hong-Gee Kim
- Biomedical Knowledge Engineering Laboratory, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Kyoung-Hwa Kim
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul, 03080, Korea
| | - Young Ku
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul, 03080, Korea
| | - Yang-Jo Seol
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul, 03080, Korea.
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191
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Environmental pollutants exposure and male reproductive toxicity: The role of epigenetic modifications. Toxicology 2021; 456:152780. [PMID: 33862174 DOI: 10.1016/j.tox.2021.152780] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/20/2021] [Accepted: 04/08/2021] [Indexed: 02/07/2023]
Abstract
Male fertility rates have shown a progressive decrease in recent decades. There is a growing concern about the male reproductive dysfunction caused by environmental pollutants exposure, however the underlying molecular mechanisms are still not well understood. Epigenetic modifications play a key role in the biological responses to external stressors. Therefore, this review discusses the roles of epigenetic modifications in male reproductive toxicity induced by environmental pollutants, with a particular emphasis on DNA methylation, histone modifications and miRNAs. The available literature proposed that environmental pollutants can directly or cause oxidative stress and DNA damage to induce a variety of epigenetic changes, which lead to gene dysregulation, mitochondrial dysfunction and consequent male reproductive toxicity. However, future studies focusing on more kinds of epigenetic modifications and their crosstalk as well as epidemiological data are still required to fill in the current research gaps. In addition, the intrinsic links between pollutants-mediated epigenetic regulations and male reproduction-related physiological responses deserve to be further explored.
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192
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Gore AC, Thompson LM, Bell M, Mennigen JA. Transgenerational effects of polychlorinated biphenyls: 2. Hypothalamic gene expression in rats†. Biol Reprod 2021; 105:690-704. [PMID: 33824955 DOI: 10.1093/biolre/ioab066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/22/2021] [Accepted: 04/01/2021] [Indexed: 01/07/2023] Open
Abstract
Polychlorinated biphenyls (PCBs) are endocrine-disrupting chemicals (EDCs) with well-established effects on reproduction and behavior in developmentally-exposed (F1) individuals. Because of evidence for transgenerational effects of EDCs on the neuroendocrine control of reproductive physiology, we tested the hypothesis that prenatal PCB exposure leads to unique hypothalamic gene-expression profiles in three generations. Pregnant Sprague-Dawley rats were treated on gestational days 16 and 18 with the PCB mixture Aroclor 1221 (A1221), vehicle (3% DMSO in sesame oil), or estradiol benzoate (EB, 50 μg/kg), the latter a positive control for estrogenic effects of A1221. Maternal- and paternal-lineage F2 and F3 generations were bred using untreated partners. The anteroventral periventricular nucleus (AVPV) and arcuate nucleus (ARC), involved in the hypothalamic control of reproduction, were dissected from F1 to F3 females and males, RNA extracted, and gene expression measured in a qPCR array. We detected unique gene-expression profiles in each generation, which were sex- and lineage-specific. In the AVPV, treatment significantly changed 10, 25, and 11 transcripts in F1, F2, and F3 generations, whereas 10, 1, and 12 transcripts were changed in these generations in the ARC. In the F1 AVPV and ARC, most affected transcripts were decreased by A1221. In the F2 AVPV, most effects of A1221 were observed in females of the maternal lineage, whereas only Pomc expression changed in the F2 ARC (by EB). The F3 AVPV and ARC were mainly affected by EB. It is notable that results in one generation do not predict results in another, and that lineage was a major determinant in results. Thus, transient prenatal exposure of F1 rats to A1221 or EB can alter hypothalamic gene expression across three generations in a sex- and lineage-dependent manner, leading to the conclusion that the legacy of PCBs continues for generations.
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Affiliation(s)
- Andrea C Gore
- Division of Pharmacology & Toxicology, College of Pharmacy, University of Texas at Austin, Austin, TX, USA
| | - Lindsay M Thompson
- Division of Pharmacology & Toxicology, College of Pharmacy, University of Texas at Austin, Austin, TX, USA
| | - Mandee Bell
- Division of Pharmacology & Toxicology, College of Pharmacy, University of Texas at Austin, Austin, TX, USA
| | - Jan A Mennigen
- Division of Pharmacology & Toxicology, College of Pharmacy, University of Texas at Austin, Austin, TX, USA
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193
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Bleak TC, Calaf GM. Breast and prostate glands affected by environmental substances (Review). Oncol Rep 2021; 45:20. [PMID: 33649835 PMCID: PMC7879422 DOI: 10.3892/or.2021.7971] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 01/08/2021] [Indexed: 12/17/2022] Open
Abstract
Environmental endocrine disruptor chemicals are substances that can alter the homeostasis of the endocrine system in living organisms. They can be released from several products used in daily activities. Once in the organism, they can disrupt the endocrine function by mimicking or blocking naturally occurring hormones due to their similar chemical structure. This endocrine disruption is the most important cause of the well‑known hormone‑associate types of cancer. Additionally, it is decisive to determine the susceptibility of each organ to these compounds. Therefore, the present review aimed to summarize the effect of different environmental substances such as bisphenol A, dichlorodiphenyltrichloroethane and polychlorinated biphenyls in both the mammary and the prostate tissues. These organs were chosen due to their association with the hormonal system and their common features in carcinogenic mechanisms. Outcomes derived from the present review may provide evidence that should be considered in future debates regarding the effects of endocrine disruptors on carcinogenesis.
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Affiliation(s)
- Tammy C. Bleak
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Arica 1000000, Chile
| | - Gloria M. Calaf
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Arica 1000000, Chile
- Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA
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194
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Maurer AS, Seminoff JA, Layman CA, Stapleton SP, Godfrey MH, Reiskind MOB. Population Viability of Sea Turtles in the Context of Global Warming. Bioscience 2021. [DOI: 10.1093/biosci/biab028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Sea turtles present a model for the potential impacts of climate change on imperiled species, with projected warming generating concern about their persistence. Various sea turtle life-history traits are affected by temperature; most strikingly, warmer egg incubation temperatures cause female-biased sex ratios and higher embryo mortality. Predictions of sea turtle resilience to climate change are often focused on how resulting male limitation or reduced offspring production may affect populations. In the present article, by reviewing research on sea turtles, we provide an overview of how temperature impacts on incubating eggs may cascade through life history to ultimately affect population viability. We explore how sex-specific patterns in survival and breeding periodicity determine the differences among offspring, adult, and operational sex ratios. We then discuss the implications of skewed sex ratios for male-limited reproduction, consider the negative correlation between sex ratio skew and genetic diversity, and examine consequences for adaptive potential. Our synthesis underscores the importance of considering the effects of climate throughout the life history of any species. Lethal effects (e.g., embryo mortality) are relatively direct impacts, but sublethal effects at immature life-history stages may not alter population growth rates until cohorts reach reproductive maturity. This leaves a lag during which some species transition through several stages subject to distinct biological circumstances and climate impacts. These perspectives will help managers conceptualize the drivers of emergent population dynamics and identify existing knowledge gaps under different scenarios of predicted environmental change.
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Affiliation(s)
- Andrew S Maurer
- Department of Biological Sciences, North Carolina State University, Raleigh, North Carolina, in the United States; he is also a research associate with the Jumby Bay Hawksbill Project in Antigua, West Indies
| | - Jeffrey A Seminoff
- Marine Turtle Ecology and Assessment Program, National Oceanic and Atmospheric Administration's Southwest Fisheries Science Center, La Jolla, California, United States
| | - Craig A Layman
- Center for Energy, Environment, and Sustainability, Wake Forest University, in Winston-Salem, North Carolina, in the United States
| | - Seth P Stapleton
- Conservation and animal health sciences, Minnesota Zoo, Apple Valley, Minnesota; he is also an adjunct faculty member in the Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, in Minneapolis, Minnesota, in the United States
| | - Matthew H Godfrey
- North Carolina Wildlife Resources Commission, Raleigh, North Carolina, United States
| | - Martha O Burford Reiskind
- Martha Burford Reiskind is an assistant professor in the Department of Biological Sciences and the director of the Genetics and Genomics Scholars program, North Carolina State University, Raleigh, North Carolina, United States
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195
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Cabej NR. A mechanism of inheritance of acquired traits in animals. Dev Biol 2021; 475:106-117. [PMID: 33741349 DOI: 10.1016/j.ydbio.2021.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 01/11/2023]
Abstract
Observational and experimental evidence for the inheritance of acquired traits in animals is slowly, but steadily accumulating. The onset and transmission of acquired traits implies the acquisition and transmission from parents to progeny of new information, which is different from the genetic information contained in DNA. The new non-genetic information most commonly is passed on from parents to the offspring via gamete(s), but how it is precisely transmitted to the successive generations is still unknown. Based on adequate empirical evidence presented herein, a hypothesis is proposed of the inheritance of acquired traits in animals and the flow of the relevant parental information to the offspring.
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Affiliation(s)
- Nelson R Cabej
- University of Tirana Faculty of Medicine, Universiteti i Mjekesise Tirane, Department of Biology, 147 Manhattan Terrace, Dumont, 07628, USA.
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196
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Thorson JLM, Beck D, Ben Maamar M, Nilsson EE, Skinner MK. Ancestral plastics exposure induces transgenerational disease-specific sperm epigenome-wide association biomarkers. ENVIRONMENTAL EPIGENETICS 2021; 7:dvaa023. [PMID: 33841921 PMCID: PMC8022921 DOI: 10.1093/eep/dvaa023] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/17/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Plastic-derived compounds are one of the most frequent daily worldwide exposures. Previously a mixture of plastic-derived toxicants composed of bisphenol A, bis(2-ethylhexyl) phthalate, and dibutyl phthalate at low-dose exposures of a gestating female rats was found to promote the epigenetic transgenerational inheritance of disease to the offspring (F1 generation), grand-offspring (F2 generation), and great-grand-offspring (F3 generation). Epigenetic analysis of the male sperm was found to result in differential DNA methylation regions (DMRs) in the transgenerational F3 generation male sperm. The current study is distinct and was designed to use an epigenome-wide association study to identify potential sperm DNA methylation biomarkers for specific transgenerational diseases. Observations indicate disease-specific DMRs called epimutations in the transgenerational F3 generation great-grand-offspring of rats ancestrally exposed to plastics. The epigenetic DMR biomarkers were identified for testis disease, kidney disease, and multiple (≥2) diseases. These disease sperm epimutation biomarkers were found to be predominantly disease-specific. The genomic locations and features of these DMRs were identified. Interestingly, the disease-specific DMR-associated genes were previously shown to be linked with each of the specific diseases. Therefore, the germline has ancestrally derived epimutations that potentially transmit transgenerational disease susceptibilities. Epigenetic biomarkers for specific diseases could be used as diagnostics to facilitate clinical management of disease and preventative medicine.
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Affiliation(s)
- Jennifer L M Thorson
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Daniel Beck
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Millissia Ben Maamar
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Eric E Nilsson
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
| | - Michael K Skinner
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA
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197
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Wang JJ, Tian Y, Li MH, Feng YQ, Kong L, Zhang FL, Shen W. Single-cell transcriptome dissection of the toxic impact of Di (2-ethylhexyl) phthalate on primordial follicle assembly. Am J Cancer Res 2021; 11:4992-5009. [PMID: 33754040 PMCID: PMC7978297 DOI: 10.7150/thno.55006] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 01/22/2021] [Indexed: 02/06/2023] Open
Abstract
Rationale: Accumulated evidence indicates that environmental plasticizers are a threat to human and animal fertility. Di (2-ethylhexyl) phthalate (DEHP), a plasticizer to which humans are exposed daily, can trigger reproductive toxicity by acting as an endocrine-disrupting chemical. In mammals, the female primordial follicle pool forms the lifetime available ovarian reserve, which does not undergo regeneration once it is established during the fetal and neonatal period. It is therefore critical to examine the toxicity of DEHP regarding the establishment of the ovarian reserve as it has not been well investigated. Methods: The ovarian cells of postnatal pups, following maternal DEHP exposure, were prepared for single cell-RNA sequencing, and the effects of DEHP on primordial follicle formation were revealed using gene differential expression analysis and single-cell developmental trajectory. In addition, further biochemical experiments, including immunohistochemical staining, apoptosis detection, and Western blotting, were performed to verify the dataset results. Results: Using single-cell RNA sequencing, we revealed the gene expression dynamics of female germ cells and granulosa cells following exposure to DEHP in mice. Regarding germ cells: DEHP impeded the progression of follicle assembly and interfered with their developmental status, while key genes such as Lhx8, Figla, and others, strongly evidenced the reduction. As for granulosa cells: DEHP likely inhibited their proliferative activity, and activated the regulation of cell death. Furthermore, the interaction between ovarian cells mediated by transforming growth factor-beta signaling, was disrupted by DEHP exposure, since the expression of GDF9, BMPR1A, and SMAD3 was affected. In addition, DNA damage and apoptosis were elevated in germ cells and/or somatic cells. Conclusion: These findings offer substantial novel insights into the reproductive toxicity of DEHP exposure during murine germ cell cyst breakdown and primordial follicle formation. These results may enhance the understanding of DEHP exposure on reproductive health.
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198
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Lombó M, Herráez P. The effects of endocrine disruptors on the male germline: an intergenerational health risk. Biol Rev Camb Philos Soc 2021; 96:1243-1262. [PMID: 33660399 DOI: 10.1111/brv.12701] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 12/22/2022]
Abstract
Environmental pollution is becoming one of the major concerns of society. Among the emerging contaminants, endocrine-disrupting chemicals (EDCs), a large group of toxicants, have been the subject of many scientific studies. Besides the capacity of these compounds to interfere with the endocrine system, they have also been reported to exert both genotoxic and epigenotoxic effects. Given that spermatogenesis is a coordinated process that requires the involvement of several steroid hormones and that entails deep changes in the chromatin, such as DNA compaction and epigenetic remodelling, it could be affected by male exposure to EDCs. A great deal of evidence highlights that these compounds have detrimental effects on male reproductive health, including alterations to sperm motility, sexual function, and gonad development. This review focuses on the consequences of paternal exposure to such chemicals for future generations, which still remain poorly known. Historically, spermatozoa have long been considered as mere vectors delivering the paternal haploid genome to the oocyte. Only recently have they been understood to harbour genetic and epigenetic information that plays a remarkable role during offspring early development and long-term health. This review examines the different modes of action by which the spermatozoa represent a key target for EDCs, and analyses the consequences of environmentally induced changes in sperm genetic and epigenetic information for subsequent generations.
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Affiliation(s)
- Marta Lombó
- Department of Animal Reproduction, INIA, Puerta de Hierro 18, Madrid, 28040, Spain
| | - Paz Herráez
- Department of Molecular Biology, Faculty of Biology, Universidad de León, Campus de Vegazana s/n, León, 24071, Spain
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199
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Green MP, Harvey AJ, Finger BJ, Tarulli GA. Endocrine disrupting chemicals: Impacts on human fertility and fecundity during the peri-conception period. ENVIRONMENTAL RESEARCH 2021; 194:110694. [PMID: 33385395 DOI: 10.1016/j.envres.2020.110694] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/24/2020] [Accepted: 12/25/2020] [Indexed: 05/08/2023]
Abstract
It is becoming increasingly difficult to avoid exposure to man-made endocrine disrupting chemicals (EDCs) and environmental toxicants. This escalating yet constant exposure is postulated to partially explain the concurrent decline in human fertility that has occurred over the last 50 years. Controversy however remains as to whether associations exist, with conflicting findings commonly reported for all major EDC classes. The primary aim of this extensive work was to identify and review strong peer-reviewed evidence regarding the effects of environmentally-relevant EDC concentrations on adult male and female fertility during the critical periconception period on reproductive hormone concentrations, gamete and embryo characteristics, as well as the time to pregnancy in the general population. Secondly, to ascertain whether individuals or couples diagnosed as sub-fertile exhibit higher EDC or toxicant concentrations. Lastly, to highlight where little or no data exists that prevents strong associations being identified. From the greater than 1480 known EDCs, substantial evidence supports a negative association between exposure to phthalates, PCBs, PBDEs, pyrethroids, organochloride pesticides and male fertility and fecundity. Only moderate evidence exists for a negative association between BPA, PCBs, organochloride pesticides and female fertility and fecundity. Overall fewer studies were reported in women than men, with knowledge gaps generally evident for both sexes for all the major EDC classes, as well as a paucity of female fertility studies following exposure to parabens, triclosans, dioxins, PFAS, organophosphates and pyrethroids. Generally, sub-fertile individuals or couples exhibit higher EDC concentrations, endorsing a positive association between EDC exposure and sub-fertility. This review also discusses confounding and limiting factors that hamper our understanding of EDC exposures on fertility and fecundity. Finally, it highlights future research areas, as well as government, industry and social awareness strategies required to mitigate the negative effects of EDC and environmental toxicant exposure on human fertility and fecundity.
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Affiliation(s)
- Mark P Green
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia.
| | - Alexandra J Harvey
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
| | - Bethany J Finger
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
| | - Gerard A Tarulli
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
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200
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Ham J, Park S, Lim W, Song G. The herbicide dinitramine affects the proliferation of murine testicular cells via endoplasmic reticulum stress-induced calcium dysregulation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:115982. [PMID: 33288293 DOI: 10.1016/j.envpol.2020.115982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/27/2020] [Accepted: 10/31/2020] [Indexed: 06/12/2023]
Abstract
The hazardous effects of herbicides are well known; however, their effects on the reproductive system remain unclear. In this study, we demonstrated the anti-proliferative effects of dinitramine (DN) on immature murine testicular cell lines (Leydig and Sertoli cells) mediated via endoplasmic reticulum (ER) stress-induced calcium dysregulation in the cytosol and mitochondria. The results demonstrated that the viability and proliferation of DN-treated TM3 and TM4 cells decreased significantly, even in the spheroid state. DN induced the apoptosis of TM3 and TM4 cells and decreased the expression of genes related to cell cycle progression. Treatment with DN increased the cytosolic and intramitochondrial levels of calcium by activating ER stress signals. DN activated the Erk/P38/Jnk Mapk pathway and inactivated the Pi3k/Akt pathway in murine testicular cells. Co-treatment with 2-aminoethoxydiphenyl borate (2-APB) mitigated DN-induced calcium upregulation in both testicular cell lines. Although 2-APB did not antagonize the anti-proliferative effect of DN in TM3 cells, treatment with 2-APB and 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid restored the proliferation of DN-treated TM4 cells.
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Affiliation(s)
- Jiyeon Ham
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Sunwoo Park
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Whasun Lim
- Department of Food and Nutrition, Kookmin University, Seoul, 02707, Republic of Korea.
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.
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