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Martinez ME, Karaczyn A, Wu Z, Bennett CA, Matoin KL, Daigle HM, Hernandez A. Transgenerational epigenetic self-memory of Dio3 dosage is associated with Meg3 methylation and altered growth trajectories and neonatal hormones. Epigenetics 2024; 19:2376948. [PMID: 38991122 PMCID: PMC11244338 DOI: 10.1080/15592294.2024.2376948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024] Open
Abstract
Intergenerational and transgenerational epigenetic effects resulting from conditions in previous generations can contribute to environmental adaptation as well as disease susceptibility. Previous studies in rodent and human models have shown that abnormal developmental exposure to thyroid hormone affects endocrine function and thyroid hormone sensitivity in later generations. Since the imprinted type 3 deiodinase gene (Dio3) regulates sensitivity to thyroid hormones, we hypothesize its epigenetic regulation is altered in descendants of thyroid hormone overexposed individuals. Using DIO3-deficient mice as a model of developmental thyrotoxicosis, we investigated Dio3 total and allelic expression and growth and endocrine phenotypes in descendants. We observed that male and female developmental overexposure to thyroid hormone altered total and allelic Dio3 expression in genetically intact descendants in a tissue-specific manner. This was associated with abnormal growth and neonatal levels of thyroid hormone and leptin. Descendant mice also exhibited molecular abnormalities in the Dlk1-Dio3 imprinted domain, including increased methylation in Meg3 and altered foetal brain expression of other genes of the Dlk1-Dio3 imprinted domain. These molecular abnormalities were also observed in the tissues and germ line of DIO3-deficient ancestors originally overexposed to thyroid hormone in utero. Our results provide a novel paradigm of epigenetic self-memory by which Dio3 gene dosage in a given individual, and its dependent developmental exposure to thyroid hormone, influences its own expression in future generations. This mechanism of epigenetic self-correction of Dio3 expression in each generation may be instrumental in descendants for their adaptive programming of developmental growth and adult endocrine function.
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Affiliation(s)
- M. Elena Martinez
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, Scarborough, ME, USA
| | - Aldona Karaczyn
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, Scarborough, ME, USA
| | - Zhaofei Wu
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, Scarborough, ME, USA
| | - Christian A. Bennett
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, Scarborough, ME, USA
| | - Kassey L. Matoin
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, Scarborough, ME, USA
| | - Heather M. Daigle
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, Scarborough, ME, USA
| | - Arturo Hernandez
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, Scarborough, ME, USA
- Graduate School for Biomedical Sciences and Engineering, University of Maine, Orono, ME, USA
- Department of Medicine, Tufts University School of Medicine, Boston, MA, USA
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2
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Korolenko A, Skinner MK. Generational stability of epigenetic transgenerational inheritance facilitates adaptation and evolution. Epigenetics 2024; 19:2380929. [PMID: 39104183 PMCID: PMC11305060 DOI: 10.1080/15592294.2024.2380929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/29/2024] [Accepted: 07/11/2024] [Indexed: 08/07/2024] Open
Abstract
The epigenome and epigenetic inheritance were not included in the original modern synthesis theory or more recent extended evolutionary synthesis of evolution. In a broad range of species, the environment has been shown to play a significant role in natural selection, which more recently has been shown to occur through epigenetic alterations and epigenetic inheritance. However, even with this evidence, the field of epigenetics and epigenetic inheritance has been left out of modern evolutionary synthesis, as well as other current evolutionary models. Epigenetic mechanisms can direct the regulation of genetic processes (e.g. gene expression) and also can be directly changed by the environment. In contrast, DNA sequence cannot be directly altered by the environment. The goal of this review is to present the evidence of how epigenetics and epigenetic inheritance can alter phenotypic variation in numerous species. This can occur at a significantly higher frequency than genetic change, so correlates with the frequency of evolutionary change. In addition, the concept and importance of generational stability of transgenerational inheritance is incorporated into evolutionary theory. For there to be a better understanding of evolutionary biology, we must incorporate all aspects of molecular (e.g. genetics and epigenetics) and biological sciences (e.g. environment and adaptation).
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Affiliation(s)
- Alexandra Korolenko
- 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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3
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Khatib H, Townsend J, Konkel MA, Conidi G, Hasselkus JA. Calling the question: what is mammalian transgenerational epigenetic inheritance? Epigenetics 2024; 19:2333586. [PMID: 38525788 DOI: 10.1080/15592294.2024.2333586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 03/17/2024] [Indexed: 03/26/2024] Open
Abstract
While transgenerational epigenetic inheritance has been extensively documented in plants, nematodes, and fruit flies, its existence in mammals remains controversial. Several factors have contributed to this debate, including the lack of a clear distinction between intergenerational and transgenerational epigenetic inheritance (TEI), the inconsistency of some studies, the potential confounding effects of in-utero vs. epigenetic factors, and, most importantly, the biological challenge of epigenetic reprogramming. Two waves of epigenetic reprogramming occur: in the primordial germ cells and the developing embryo after fertilization, characterized by global erasure of DNA methylation and remodelling of histone modifications. Consequently, TEI can only occur if specific genetic regions evade this reprogramming and persist through embryonic development. These challenges have revived the long-standing debate about the possibility of inheriting acquired traits, which has been strongly contested since the Lamarckian and Darwinian eras. As a result, coupled with the absence of universally accepted criteria for transgenerational epigenetic studies, a vast body of literature has emerged claiming evidence of TEI. Therefore, the goal of this study is to advocate for establishing fundamental criteria that must be met for a study to qualify as evidence of TEI. We identified five criteria based on the consensus of studies that critically evaluated TEI. To assess whether published original research papers adhere to these criteria, we examined 80 studies that either claimed or were cited as supporting TEI. The findings of this analysis underscore the widespread confusion in this field and highlight the urgent need for a unified scientific consensus on TEI requirements.
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Affiliation(s)
- Hasan Khatib
- The Department of Animal and Dairy Sciences, The University of Wisconsin, Madison, WI, USA
| | - Jessica Townsend
- The Department of Animal and Dairy Sciences, The University of Wisconsin, Madison, WI, USA
| | - Melissa A Konkel
- The Department of Animal and Dairy Sciences, The University of Wisconsin, Madison, WI, USA
| | - Gabi Conidi
- The Department of Animal and Dairy Sciences, The University of Wisconsin, Madison, WI, USA
| | - Julia A Hasselkus
- The Department of Animal and Dairy Sciences, The University of Wisconsin, Madison, WI, USA
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4
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Sun Y, Wang X, Guo W, Li F, Hua J, Zhu B, Guo Y, Han J, Yang L, Zhou B. Life-time exposure to decabromodiphenyl ethane (DBDPE) caused transgenerational epigenetic alterations of thyroid endocrine system in zebrafish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175337. [PMID: 39117194 DOI: 10.1016/j.scitotenv.2024.175337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/24/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Because of its ubiquitous occurrence in the environment, decabromodiphenyl ethane (DBDPE), a novel brominated flame retardant, has been widely concerned. However, its transgenerational thyroid disrupting potential and intricate mechanism are barely explored. Therefore, zebrafish embryos were exposed to environmentally relevant concentrations of DBDPE (0, 0.1, 1 and 10 nM) until sexual maturity. The results indicated that life-time exposure to DBDPE caused anxiety-like behavior in unexposed offspring. Furthermore, the changing of thyroid hormones as well as transcriptional and DNA methylation level in the promoter region of related genes were evaluated. The thyroid disruptions observed in F1 larvae were primarily attributed to excessive transfer of thyroid hormone from F0 adults to F1 eggs. Conversely, the disruptions in F2 larvae were likely due to inherited epigenetic changes, specifically hypomethylation of crh and hypermethylation of ugt1ab, passed down from the F1 generation. Additionally, our results revealed sex-specific responses of the hypothalamic-pituitary-thyroid (HPT) axis in adult zebrafish. Furthermore, thyroid disruptions observed in unexposed offspring were more likely inherited from their mothers. The current results prompted our in-depth understanding of the multi- and transgenerational toxicity by DBDPE, and also highlighted the need to consider their adverse effects on persistent and inheritable epigenetic changes in future research on emerging pollutants.
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Affiliation(s)
- Yumiao Sun
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xiaochen Wang
- Ecology and Environment Monitoring and Scientific Research Center, Ecology and Environment Administration of Yangtze River Basin, Ministry of Ecology and Environment, Wuhan 430010, China
| | - Wei Guo
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan and Center for Life Science, School of Life Sciences, Yunnan University, Kunming 650504, China
| | - Fan Li
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianghuan Hua
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Biran Zhu
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Yongyong Guo
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Jian Han
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Lihua Yang
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Bingsheng Zhou
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Pool KR, Gajanayakage RH, Connolly C, Blache D. Ancestral lineages of dietary exposure to an endocrine disrupting chemical drive distinct forms of transgenerational subfertility in an insect model. Sci Rep 2024; 14:18153. [PMID: 39103404 PMCID: PMC11300584 DOI: 10.1038/s41598-024-67921-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 07/17/2024] [Indexed: 08/07/2024] Open
Abstract
Across the globe, many species of insects are facing population decline. This is largely driven by anthropogenic changes to the environment, including the widespread exposure of invertebrates to endocrine disrupting chemicals (EDCs), which impair fertility. To test whether generations of Drosophila melanogaster born from parents exposed to a common dietary EDC, equol, could recover reproductive function, we quantified the reproductive capacity of the two subsequent generations. Using a novel suite of flow cytometry assays to assess sperm functionality in real time, we find that sperm function is compromised across three generations, even after non-exposed in individuals contribute to the breeding population. Though the sex ratio alters in response to EDC exposure, favouring the survival of female offspring, most lineages with ancestral EDC exposure exhibit persistent subfertility in both the male and female. Male offspring with ancestral EDC exposure present with reduced fertility and dysfunctional spermatozoa, whereby spermatozoa are metabolically stressed, lack DNA integrity and present with permanent epigenetic alterations. Across generations, male and female offspring demonstrate distinct patterns of reproductive characteristics, depending upon the specific lineage of EDC exposure. Our results illustrate how dietary EDCs present in agricultural plants could promote transgenerational subfertility and contribute to declining insect populations.
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Affiliation(s)
- Kelsey R Pool
- UWA Institute of Agriculture and UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, 6009, Australia.
| | - Raveena Hewa Gajanayakage
- UWA Institute of Agriculture and UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, 6009, Australia
| | - Callum Connolly
- UWA Institute of Agriculture and UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, 6009, Australia
| | - Dominique Blache
- UWA Institute of Agriculture and UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, 6009, Australia
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6
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Germain L, Winn LM. The flame retardant triphenyl phosphate alters the epigenome of embryonic cells in an aquatic in vitro model. J Appl Toxicol 2024; 44:965-977. [PMID: 38419361 DOI: 10.1002/jat.4589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/12/2024] [Accepted: 01/24/2024] [Indexed: 03/02/2024]
Abstract
Triphenyl phosphate (TPhP) is an organophosphate flame retardant and plasticizer that is added to a wide variety of consumer and industrial products. It is also a ubiquitous environmental pollutant. Exposure to TPhP has been shown to alter gene expression in metabolic and estrogenic signaling pathways in in vitro and in vivo models of a variety of species, and as such, is considered to be an endocrine disrupting chemical. Exposure to endocrine disrupting chemicals is increasingly being associated with changes to the epigenome, especially during embryonic development. The aim of this study was to evaluate whether TPhP exposure in aquatic ecosystems has the ability to alter the epigenome in two immortal cell lines derived from trout (Oncorhynchus mykiss). This study assessed whether 24 h exposure to TPhP resulted in changes to histone modification and DNA methylation profiles in steelhead trout embryonic cells and rainbow trout gill epithelial cells. Results show that several epigenetic modifications on histone H3 and DNA methylation are altered in the embryonic cells following TPhP exposure, but not in the gill epithelial cells. Specifically, histone H3 acetylation, histone H3 mono-methylation and global DNA methylation were found to be reduced. The alterations of these epigenetic modification profiles in the embryonic cells suggest that exposure to TPhP during fetal development may alter gene expression in the developing embryo, likely in metabolic and estrogenic pathways. The impacts to the epigenome determined in this study may even carry multigenerational detrimental effects on human and ecosystem health, which requires further investigation.
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Affiliation(s)
- Logan Germain
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Louise M Winn
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
- School of Environmental Studies, Queen's University, Kingston, Canada
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7
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Basak S, Mallick R, Navya Sree B, Duttaroy AK. Placental Epigenome Impacts Fetal Development: Effects of Maternal Nutrients and Gut Microbiota. Nutrients 2024; 16:1860. [PMID: 38931215 PMCID: PMC11206482 DOI: 10.3390/nu16121860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Evidence is emerging on the role of maternal diet, gut microbiota, and other lifestyle factors in establishing lifelong health and disease, which are determined by transgenerationally inherited epigenetic modifications. Understanding epigenetic mechanisms may help identify novel biomarkers for gestation-related exposure, burden, or disease risk. Such biomarkers are essential for developing tools for the early detection of risk factors and exposure levels. It is necessary to establish an exposure threshold due to nutrient deficiencies or other environmental factors that can result in clinically relevant epigenetic alterations that modulate disease risks in the fetus. This narrative review summarizes the latest updates on the roles of maternal nutrients (n-3 fatty acids, polyphenols, vitamins) and gut microbiota on the placental epigenome and its impacts on fetal brain development. This review unravels the potential roles of the functional epigenome for targeted intervention to ensure optimal fetal brain development and its performance in later life.
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Affiliation(s)
- Sanjay Basak
- Molecular Biology Division, ICMR-National Institute of Nutrition, Indian Council of Medical Research, Hyderabad 500007, India; (S.B.); (B.N.S.)
| | - Rahul Mallick
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70211 Kuopio, Finland;
| | - Boga Navya Sree
- Molecular Biology Division, ICMR-National Institute of Nutrition, Indian Council of Medical Research, Hyderabad 500007, India; (S.B.); (B.N.S.)
| | - Asim K. Duttaroy
- Department of Nutrition, Institute of Medical Sciences, Faculty of Medicine, University of Oslo, 0317 Oslo, Norway
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8
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Diba Lahmidi M, Le Noc M, Dali O, Kernanec PY, Merret PE, Jaulin C, Smagulova F. Sex-specific transgenerational effects on murine thyroid gland imposed by ancestral exposure to neonicotinoid thiacloprid. Sci Rep 2024; 14:13047. [PMID: 38844538 PMCID: PMC11156953 DOI: 10.1038/s41598-024-63986-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 06/04/2024] [Indexed: 06/09/2024] Open
Abstract
Neonicotinoids, a relatively new widely used class of insecticide is used in agriculture to control insect populations. We examined the capacity of ancestral exposure to the neonicotinoid thiacloprid (thia) to induce transgenerational effects on thyroid tissue. Pregnant outbred Swiss female mice were exposed to thia at embryonic days E6.5 to E15.5 using 0, 0.6, and 6 mg/kg/day doses. Thyroid paraffin sections were prepared for morphology analysis. We apply ELISA method to measure T4 and TSH levels, RT-qPCR for gene expression analysis, ChIP-qPCR techniques for sperm histone H3K4me3 analysis, and immunofluorescence microscopy and western blots for protein detection. We observed an alteration in the morphology of thyroids in both males and females in the F3 generation. We observed an increase in T4 hormone in F1 females and a significant T4 level decrease in F3 males. T4 changes in F1 females were associated with a TSH increase. We found that the amount of Iodothyronine Deiodinase 1 (DIO1) (an enzyme converting T4 to T3) was decreased in both F1 and F3 generations in female thyroids. GNAS protein which is important for thyroid function has increased in female thyroids. Gene expression analysis showed that the expression of genes encoding thyroid gland development, chromatin, biosynthesis and transport factors were affected in the thyroid gland in both sexes in F1 and F3. The analysis of sperm histone H3K4me3 showed that H3K4me3 occupancy at the Dio1 locus has decreased while Thyroglobulin (Tg) and Matrix Metallopeptidase 2 (Mmp2) genes have increased H3K4me3 occupancy in the sperm of F3 mice. Besides, DNA methylation analysis of our previously published datasets showed that, in the sperm of F1 and F3 thia-derived mice, several genes related to thyroid function show consistent alterations. Our data suggest that ancestral exposure to thiacloprid affects thyroid function not only in exposed but also in indirectly exposed F3 generation.
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Affiliation(s)
- Mariam Diba Lahmidi
- Université de Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 35000, Rennes, France
| | - Morgane Le Noc
- Université de Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 35000, Rennes, France
| | - Ouzna Dali
- Université de Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 35000, Rennes, France
| | - Pierre-Yves Kernanec
- Université de Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 35000, Rennes, France
| | - Pierre-Etienne Merret
- Université de Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 35000, Rennes, France
| | - Christian Jaulin
- Université de Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 35000, Rennes, France
| | - Fatima Smagulova
- Université de Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, 35000, Rennes, France.
- Irset-Inserm UMR 1085, 9 Avenue du Prof. Léon Bernard, 35000, Rennes, France.
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9
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Phillips D, Noble D. Bubbling beyond the barrier: exosomal RNA as a vehicle for soma-germline communication. J Physiol 2024; 602:2547-2563. [PMID: 37936475 DOI: 10.1113/jp284420] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 10/27/2023] [Indexed: 11/09/2023] Open
Abstract
'Weismann's barrier' has restricted theories of heredity to the transmission of genomic variation for the better part of a century. However, the discovery and elucidation of epigenetic mechanisms of gene regulation such as DNA methylation and histone modifications has renewed interest in studies on the inheritance of acquired traits and given them mechanistic plausibility. Although it is now clear that these mechanisms allow many environmentally acquired traits to be transmitted to the offspring, how phenotypic information is communicated from the body to its gametes has remained a mystery. Here, we discuss recent evidence that such communication is mediated by somatic RNAs that travel inside extracellular vesicles to the gametes where they reprogram the offspring epigenome and phenotype. How gametes learn about bodily changes has implications not only for the clinic, but also for evolutionary theory by bringing together intra- and intergenerational mechanisms of phenotypic plasticity and adaptation.
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Affiliation(s)
- Daniel Phillips
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Denis Noble
- Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, UK
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Fernández-Vizcaíno E, Mateo R, Fernández de Mera IG, Mougeot F, Camarero PR, Ortiz-Santaliestra ME. Transgenerational effects of triazole fungicides on gene expression and egg compounds in non-exposed offspring: A case study using Red-Legged Partridges (Alectoris rufa). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171546. [PMID: 38479527 DOI: 10.1016/j.scitotenv.2024.171546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 03/26/2024]
Abstract
Triazole fungicides are widely used to treat cereal seeds before sowing. Granivorous birds like the Red-legged Partridge (Alectoris rufa) have high exposure risk because they ingest treated seeds that remain on the field surface. As triazole fungicides can act as endocrine disruptors, affecting sterol synthesis and reproduction in birds several months after exposure, we hypothesized that these effects could also impact subsequent generations of exposed birds. To test this hypothesis, we exposed adult partridges (F0) to seeds treated at commercial doses with four different formulations containing triazoles as active ingredients (flutriafol, prothioconazole, tebuconazole, and a mixture of the latter two), simulating field exposure during late autumn sowing. During the subsequent reproductive season, two to four months after exposure, we examined compound allocation of steroid hormones, cholesterol, vitamins, and carotenoids in eggs laid by exposed birds (F1), as well as the expression of genes encoding enzymes involved in sterol biosynthesis in one-day-old chicks of this F1. One year later, F1 animals were paired again to investigate the expression of the same genes in the F2 chicks. We found changes in the expression of some genes for all treatments and both generations. Additionally, we observed an increase in estrone levels in eggs from partridges treated with flutriafol compared to controls, a decrease in tocopherol levels in partridges exposed to the mixture of tebuconazole and prothioconazole, and an increase in retinol levels in partridges exposed to prothioconazole. Despite sample size limitations, this study provides novel insights into the mechanisms of action of the previously observed effects of triazole fungicide-treated seeds on avian reproduction with evidence that the effects can persist beyond the exposure windows, affecting unexposed offspring of partridges fed with treated seeds. The results highlight the importance of considering long-term chronic effects when assessing pesticide risks to wild birds.
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Affiliation(s)
- Elena Fernández-Vizcaíno
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain.
| | - Rafael Mateo
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Isabel G Fernández de Mera
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - François Mougeot
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Pablo R Camarero
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Manuel E Ortiz-Santaliestra
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
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11
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Khalid S, Kearney M, McReynolds DE. Can social adversity alter the epigenome, trigger oral disease, and affect future generations? Ir J Med Sci 2024:10.1007/s11845-024-03697-3. [PMID: 38740675 DOI: 10.1007/s11845-024-03697-3] [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: 02/23/2024] [Accepted: 04/27/2024] [Indexed: 05/16/2024]
Abstract
The nature versus nurture debate has intrigued scientific circles for decades. Although extensive research has established a clear relationship between genetics and disease development, recent evidence has highlighted the insufficiency of attributing adverse health outcomes to genetic factors alone. In fact, it has been suggested that environmental influences, such as socioeconomic position (SEP), may play a much larger role in the development of disease than previously thought, with extensive research suggesting that low SEP is associated with adverse health conditions. In relation to oral health, a higher prevalence of caries (tooth decay) exists among those of low SEP. Although little is known about the biological mechanisms underlying this relationship, epigenetic modifications resulting from environmental influences have been suggested to play an important role. This review explores the intersection of health inequalities and epigenetics, the role of early-life social adversity and its long-term epigenetic impacts, and how those living within the lower hierarchies of the socioeconomic pyramid are indeed at higher risk of developing diseases, particularly in relation to oral health. A deeper understanding of these mechanisms could lead to the development of targeted interventions for individuals of low SEP to improve oral health or identify those who are at higher risk of developing oral disease.
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Affiliation(s)
- Sakr Khalid
- Dublin Dental University Hospital, Trinity College Dublin, Dublin, Ireland
| | - Michaela Kearney
- Dublin Dental University Hospital, Trinity College Dublin, Dublin, Ireland
| | - David E McReynolds
- Dublin Dental University Hospital, Trinity College Dublin, Dublin, Ireland.
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12
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Zhang Y, Wang B, Sun W, Wang G, Liu Z, Zhang X, Ding J, Han Y, Zhang H. Paternal exposures to endocrine-disrupting chemicals induce intergenerational epigenetic influences on offspring: A review. ENVIRONMENT INTERNATIONAL 2024; 187:108689. [PMID: 38688236 DOI: 10.1016/j.envint.2024.108689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/28/2024] [Accepted: 04/22/2024] [Indexed: 05/02/2024]
Abstract
Endocrine-disrupting chemicals (EDCs) are ubiquitous in ecological environments and have become a great issue of public health concern since the 1990 s. There is a deep scientific understanding of the toxicity of EDCs. However, recent studies have found that the abnormal physiological functions of the parents caused by EDCs could be transmitted to their unexposed offspring, leading to intergenerational toxicity. We questioned whether sustained epigenetic changes occur through the male germline. In this review, we (1) systematically searched the available research on the intergenerational impacts of EDCs in aquatic and mammal organisms, including 42 articles, (2) summarized the intergenerational genetic effects, such as decreased offspring survival, abnormal reproductive dysfunction, metabolic disorders, and behavioral abnormalities, (3) summarized the mechanisms of intergenerational toxicity through paternal interactions, and (4) propose suggestions on future research directions to develop a deeper understanding of the ecological risk of EDCs.
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Affiliation(s)
- Yinan Zhang
- Hangzhou Normal University, Hangzhou 310018, China
| | - Bingyi Wang
- Hangzhou Normal University, Hangzhou 310018, China
| | - Wenhui Sun
- Hangzhou Normal University, Hangzhou 310018, China
| | | | - Zhiquan Liu
- Hangzhou Normal University, Hangzhou 310018, China; Hangzhou International Urbanology Research Center, Hangzhou 311121, China
| | | | - Jiafeng Ding
- Hangzhou Normal University, Hangzhou 310018, China
| | - Yu Han
- Hangzhou Normal University, Hangzhou 310018, China
| | - Hangjun Zhang
- Hangzhou Normal University, Hangzhou 310018, China; Hangzhou International Urbanology Research Center, Hangzhou 311121, China.
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Alenazi A, Virk P, Almoqhem R, Alsharidah A, Al-Ghadi MQ, Aljabr W, Alasmari F, Albasher G. The Efficacy of Hispidin and Magnesium Nanoparticles against Zearalenone-Induced Fungal Toxicity Causing Polycystic Ovarian Syndrome in Rats. Biomedicines 2024; 12:943. [PMID: 38790905 PMCID: PMC11118902 DOI: 10.3390/biomedicines12050943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/05/2024] [Accepted: 04/11/2024] [Indexed: 05/26/2024] Open
Abstract
Contamination by fungi and the toxins they secrete is a worldwide health concern. One such toxin is zearalenone (Zea), which is structurally similar to the hormone estrogen, interferes with its action on the reproductive system, and is therefore classified as an endocrine disruptor. This study aims to determine the effectiveness of hispidin and magnesium nanoparticles (MgONPs) against zearalenone-induced myotoxicity, which causes polycystic ovary syndrome (PCOS) in rats. A three-month exposure study was performed using female Wistar rats (n = 42) with an average weight of 100-150 g. The animals were divided into six groups (I to VI) of seven rats each. Group I was administered distilled water as a negative control. Group II was exposed to Zea 0.1 mg/kg b.w. through gavage daily. Group III was treated with 0.1 mg/kg of hispidin through gavage daily. Group IV was given 150 µg/mL MgONPs orally each day. Group V was treated with Zea 0.1 mg/kg b.w. + 0.1 mg/kg hispidin orally each day. Group VI was treated with Zea 0.1 mg/kg b.w. and the combination treatment of 0.1 mg/kg hispidin + 150 µg/mL MgONPs through gavage every day. The effectiveness of hispidin and MgONPs against Zea toxicity was evaluated in terms of ovarian histological changes, gene expression, oxidative stress biomarkers, biochemical variables, and hormone levels. The findings showed that exposure to Zea promotes PCOS in rats, with Zea-treated rats displaying hyper-ovulation with large cysts; elevated testosterone, luteinizing hormone, insulin, and glucose; and reduced sex hormone-binding globulin. In addition, qRT-PCR for aromatase (Cyp19α1) showed it to be downregulated. Treatment with hispidin improved the histopathological and hormonal situation and rescued expression of Cyp19α. Our data indicate the potential therapeutic effects of hispidin against Zea-induced Fungal Toxicity.
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Affiliation(s)
- Amenah Alenazi
- Department of Zoology, College of Science, King Saud University, Riyadh 11459, Saudi Arabia; (A.A.); (P.V.); (R.A.); (A.A.); (M.Q.A.-G.)
- Department of Biological Sciences, College of Science, Northern Border University, Arar 73213, Saudi Arabia
| | - Promy Virk
- Department of Zoology, College of Science, King Saud University, Riyadh 11459, Saudi Arabia; (A.A.); (P.V.); (R.A.); (A.A.); (M.Q.A.-G.)
| | - Reem Almoqhem
- Department of Zoology, College of Science, King Saud University, Riyadh 11459, Saudi Arabia; (A.A.); (P.V.); (R.A.); (A.A.); (M.Q.A.-G.)
| | - Amani Alsharidah
- Department of Zoology, College of Science, King Saud University, Riyadh 11459, Saudi Arabia; (A.A.); (P.V.); (R.A.); (A.A.); (M.Q.A.-G.)
| | - Muath Q. Al-Ghadi
- Department of Zoology, College of Science, King Saud University, Riyadh 11459, Saudi Arabia; (A.A.); (P.V.); (R.A.); (A.A.); (M.Q.A.-G.)
| | - Waleed Aljabr
- King Fahad Medical City, Riyadh 11525, Saudi Arabia;
| | - Fawaz Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11459, Saudi Arabia;
| | - Gadah Albasher
- Department of Zoology, College of Science, King Saud University, Riyadh 11459, Saudi Arabia; (A.A.); (P.V.); (R.A.); (A.A.); (M.Q.A.-G.)
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14
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Garvik OS, Jølving LR, Lund K, Friedman S, Nørgård BM. Paternal use of selective serotonin reuptake inhibitors and adverse health outcomes: A nationwide cohort study on 13,547 exposed children. Andrology 2024. [PMID: 38639021 DOI: 10.1111/andr.13646] [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: 01/11/2024] [Revised: 02/29/2024] [Accepted: 03/27/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND The use of selective serotonin reuptake inhibitors (SSRIs) has increased over time. Several studies indicate that paternal use of medication may adversely affect the developing fetus. Only a few studies have investigated the association between preconceptional paternal exposure to SSRIs and the risks of adverse health outcomes in children. OBJECTIVES This study aimed to assess adverse birth outcomes and adverse early life events in children fathered by men using SSRIs prior to conception. MATERIALS AND METHODS All live-born singleton children born in Denmark from 1997 until 2019 and their parents were included. The exposed cohort comprised all children fathered by men using SSRIs 3 months prior to conception and the unexposed cohort comprised all other children. We estimated the odds ratios for adverse birth outcomes: small for gestational age (SGA), preterm birth, low Apgar score, and major congenital malformations. Furthermore, we estimated the hazard ratios for adverse early life events of infections and hospitalizations within 1 year from birth. We also examined adverse birth outcomes and the adverse early life events according to SSRI subgroups. RESULTS There was a statistically significantly increased odds ratio 1.15 (confidence interval, CI: 1.06-1.23) for preterm birth. No significant results were found for SGA, low Apgar score, and major congenital malformations. The adjusted hazard ratios for hospitalizations and infections were 1.06 (CI: 1.02-1.11) and 1.02 (CI: 0.97-1.07), respectively. There was a statistically significantly increased odds ratio for preterm birth with respect to the SSRI subgroups citalopram and escitalopram, and for hospitalizations with respect to citalopram. DISCUSSION AND CONCLUSION Although the risks of certain adverse birth and adverse early life outcomes were statistically significantly increased, the ratios were small and may have limited clinical importance. Paternal use of SSRI was in general safe in the preconceptual period.
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Affiliation(s)
| | - Line Riis Jølving
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Ken Lund
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Sonia Friedman
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Gastroenterology Division, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Bente Mertz Nørgård
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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15
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Bhattacharya I, Sharma SS, Majumdar SS. Etiology of Male Infertility: an Update. Reprod Sci 2024; 31:942-965. [PMID: 38036863 DOI: 10.1007/s43032-023-01401-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023]
Abstract
Spermatogenesis is a complex process of germ cell division and differentiation that involves extensive cross-talk between the developing germ cells and the somatic testicular cells. Defective endocrine signaling and/or intrinsic defects within the testes can adversely affect spermatogenic progression, leading to subfertility/infertility. In recent years, male infertility has been recognized as a global public health concern, and research over the last few decades has elucidated the complex etiology of male infertility. Congenital reproductive abnormalities, genetic mutations, and endocrine/metabolic dysfunction have been demonstrated to be involved in infertility/subfertility in males. Furthermore, acquired factors like exposure to environmental toxicants and lifestyle-related disorders such as illicit use of psychoactive drugs have been shown to adversely affect spermatogenesis. Despite the large body of available scientific literature on the etiology of male infertility, a substantial proportion of infertility cases are idiopathic in nature, with no known cause. The inability to treat such idiopathic cases stems from poor knowledge about the complex regulation of spermatogenesis. Emerging scientific evidence indicates that defective functioning of testicular Sertoli cells (Sc) may be an underlying cause of infertility/subfertility in males. Sc plays an indispensable role in regulating spermatogenesis, and impaired functional maturation of Sc has been shown to affect fertility in animal models as well as humans, suggesting abnormal Sc as a potential underlying cause of reproductive insufficiency/failure in such cases of unexplained infertility. This review summarizes the major causes of infertility/subfertility in males, with an emphasis on infertility due to dysregulated Sc function.
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Affiliation(s)
- Indrashis Bhattacharya
- Department of Zoology, Central University of Kerala, Periye Campus, Kasaragod, 671320, Kerala, India.
| | - Souvik Sen Sharma
- National Institute of Animal Biotechnology, Hyderabad, 500 032, Telangana, India
| | - Subeer S Majumdar
- National Institute of Animal Biotechnology, Hyderabad, 500 032, Telangana, India.
- Gujarat Biotechnology University, Gandhinagar, GIFT City, Gandhinagar, 382355, Gujarat, India.
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Montjean D, Beaumont M, Natiq A, Louanjli N, Hazout A, Miron P, Liehr T, Cabry R, Ratbi I, Benkhalifa M. Genome and Epigenome Disorders and Male Infertility: Feedback from 15 Years of Clinical and Research Experience. Genes (Basel) 2024; 15:377. [PMID: 38540436 PMCID: PMC10970370 DOI: 10.3390/genes15030377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 06/14/2024] Open
Abstract
Infertility affects around 20% of couples of reproductive age; however, in some societies, as many as one-third of couples are unable to conceive. Different factors contribute to the decline of male fertility, such us environmental and professional exposure to endocrine disruptors, oxidative stress, and life habits with the risk of de novo epigenetics dysregulation. Since the fantastic development of new "omes and omics" technologies, the contribution of inherited or de novo genomes and epigenome disorders to male infertility have been further elucidated. Many other techniques have become available to andrology laboratories for the investigation of genome and epigenome integrity and the maturation and the competency of spermatozoa. All these new methods of assessment are highlighting the importance of genetics and epigenetics investigation for assisted reproduction pathology and for supporting professionals in counselling patients and proposing different management strategies for male infertility. This aims to improve clinical outcomes while minimizing the risk of genetics or health problems at birth.
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Affiliation(s)
- Debbie Montjean
- Fertilys Fertility Centers Laval and Brossard, 1950 Maurice-Gauvin Street, Laval, QC H7S 1Z5, Canada; (D.M.)
| | - Marion Beaumont
- Genetics Department, Eylau/Unilabs Laboratory, 92110 Clichy, France;
| | - Abdelhafid Natiq
- Center for Genomics of Human Pathologies (GENOPATH), Faculty of Medicine and Pharmacy, University Mohammed V of Rabat, Rabat, Morocco (I.R.)
- National Laboratory Mohammed VI, Mohammed VI Foundation of Casablanca, Casablanca, Morocco
| | | | - Andre Hazout
- Andro-Genetics Unit, Labomac, Casablanca, Morocco (A.H.)
| | - Pierre Miron
- Fertilys Fertility Centers Laval and Brossard, 1950 Maurice-Gauvin Street, Laval, QC H7S 1Z5, Canada; (D.M.)
| | - Thomas Liehr
- Institute für Humangenetik, Universitätsklinikum Jena, Friedrich Schiller Universität, 07743 Jena, Germany
| | - Rosalie Cabry
- Reproductive Medicine, Reproductive Biology & Genetics, CECOS Picardie, University Hospital & School of Medicine, Picardie University Jules Verne, 80000 Amiens, France
- PeriTox Laboratory, Perinatality & Toxic Risks, UMR-I 01 INERIS, Picardie University Jules Verne, 80000 Amiens, France
| | - Ilham Ratbi
- Center for Genomics of Human Pathologies (GENOPATH), Faculty of Medicine and Pharmacy, University Mohammed V of Rabat, Rabat, Morocco (I.R.)
- Medical Genetics Unit, Ibn Sina University Hospital Center, Rabat, Morocco
| | - Moncef Benkhalifa
- Fertilys Fertility Centers Laval and Brossard, 1950 Maurice-Gauvin Street, Laval, QC H7S 1Z5, Canada; (D.M.)
- Reproductive Medicine, Reproductive Biology & Genetics, CECOS Picardie, University Hospital & School of Medicine, Picardie University Jules Verne, 80000 Amiens, France
- PeriTox Laboratory, Perinatality & Toxic Risks, UMR-I 01 INERIS, Picardie University Jules Verne, 80000 Amiens, France
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17
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Langford N, Fargeot L, Blanchet S. Spatial covariation between genetic and epigenetic diversity in wild plant and animal populations: a meta-analysis. J Exp Biol 2024; 227:jeb246009. [PMID: 38449323 DOI: 10.1242/jeb.246009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Epigenetic variation may be crucial in understanding the structure of wild populations, thereby aiding in their management and conservation. However, the relationship between epigenetic and genetic variation remains poorly understood, especially in wild populations. To address this, we conducted a meta-analysis of studies that examined the genetic and epigenetic structures of wild plant and animal populations. We aimed to determine whether epigenetic variation is spatially independent of genetic variation in the wild and to highlight the conditions under which epigenetic variation might be informative. We show a significant positive correlation between genetic and epigenetic pairwise differentiation, indicating that in wild populations, epigenetic diversity is closely linked to genetic differentiation. The correlation was weaker for population pairs that were weakly differentiated genetically, suggesting that in such cases, epigenetic marks might be independent of genetic marks. Additionally, we found that global levels of genetic and epigenetic differentiation were similar across plant and animal populations, except when populations were weakly differentiated genetically. In such cases, epigenetic differentiation was either higher or lower than genetic differentiation. Our results suggest that epigenetic information is particularly relevant in populations that have recently diverged genetically or are connected by gene flow. Future studies should consider the genetic structure of populations when inferring the role of epigenetic diversity in local adaptation in wild populations. Furthermore, there is a need to identify the factors that sustain the links between genetic and epigenetic diversity to improve our understanding of the interplay between these two forms of variation in wild populations.
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Affiliation(s)
- Nadia Langford
- Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS); Station d'Ecologie Théorique et Expérimentale, UAR 2029, F-09200 Moulis, France
| | - Laura Fargeot
- Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS); Station d'Ecologie Théorique et Expérimentale, UAR 2029, F-09200 Moulis, France
| | - Simon Blanchet
- Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS); Station d'Ecologie Théorique et Expérimentale, UAR 2029, F-09200 Moulis, France
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18
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Liu M, Li J, Li J, Zhou B, Lam PKS, Hu C, Chen L. Developmental cardiotoxicity of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) in marine medaka (Oryzias melastigma). JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133176. [PMID: 38070264 DOI: 10.1016/j.jhazmat.2023.133176] [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: 10/17/2023] [Revised: 11/15/2023] [Accepted: 12/02/2023] [Indexed: 02/08/2024]
Abstract
The application of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) as an antifouling biocide causes high toxicity to non-target marine organisms. To examine the developmental cardiotoxicity and mechanisms of DCOIT, we concurrently performed sub-chronic exposure and life-cycle exposure experiments using marine medaka embryos. After sub-chronic exposure to DCOIT at 1, 3, 10, and 33 μg/L, cardiac defects were caused by upregulation of cardiac gene transcriptions, decreasing heart size, and accelerating heartbeat. Hyperthyroidism in medaka larvae was identified as the cause of developmental cardiotoxicity of DCOIT sub-chronic exposure. In addition, parental life-cycle exposure to 1, 3, and 10 μg/L DCOIT led to transgenerational impairment of cardiogenesis in offspring medaka. A crossbreeding strategy discriminated a concentration-dependent mechanism of transgenerational cardiotoxicity. At 1 μg/L, the DCOIT-exposed female parent transferred a significantly higher amount of triiodothyronine (T3) hormone to offspring, corresponding to an accelerated heart rate. However, DCOIT at higher exposure concentrations modified the methylome imprinting in larval offspring, which was associated with cardiac dysfunction. Overall, the findings provide novel insights into the developmental cardiotoxicity of DCOIT. The high risks of DCOIT-even at environmentally realistic concentrations-raise concerns about its applicability as an antifoulant in a marine environment.
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Affiliation(s)
- Mengyuan Liu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiali Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bingsheng Zhou
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Paul K S Lam
- Department of Science, School of Science and Technology, Hong Kong Metropolitan University, Kowloon, Hong Kong, China
| | - Chenyan Hu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430072, China
| | - Lianguo Chen
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
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19
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Volkova N, Yukhta M, Goltsev A. DNA fragmentation, antioxidant activity and histological structure of cryopreserved testicular tissue depending on sexual maturity and immunological status. Cryobiology 2024; 114:104862. [PMID: 38360086 DOI: 10.1016/j.cryobiol.2024.104862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
The objective of this work was to determine a relationship between a frequency of DNA fragmentation, a level of antioxidant activity and a preservation of histological structure depending on initial status of fragments of seminiferous tubules of testes (FSTT) of rats at the stages of cryopreservation. FSTT of animals of different ages (immature, mature), as well as animals with changed immunological status (adjuvant arthritis) were cryopreserved. Slow uncontrolled freezing was used in a cryomedium of fibrin gel with 0.7 M glycerol. The results showed that viability, TAS, γGGT and G6PD activities had the highest values in the group of intact immature animals both in fresh FSTT and after exposure to cryomedium or cryopreservation, while the indexes of DNA fragmentation and ROS content had the lowest values. It was found that an increase in the DNA fragmentation rate occurred in parallel with a decrease in the values of antioxidant activity and membrane integrity. The spermatogenenic epithelium after cryopreservation differed between the groups in a relative number of cells with pathologically changed nuclei and the frequency of exfoliation of epithelial cells into the tubule cavity namely, there was a tendency to an increase in the damaging effects in the series, "Immature → Sexually mature → Autoimmune arthritis". The obtained data can be taken into account in the development of low-temperature preservation protocols using cryotechnologies, which will ensure the maintenance of the morphological and functional characteristics of FSTT depending on sexual maturity and immunological status.
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Affiliation(s)
- Nataliia Volkova
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, str. Pereyaslavska, 23, Kharkiv, 61016, Ukraine.
| | - Mariia Yukhta
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, str. Pereyaslavska, 23, Kharkiv, 61016, Ukraine
| | - Anatoliy Goltsev
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, str. Pereyaslavska, 23, Kharkiv, 61016, Ukraine
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20
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Liu K, Chen Z, Hu W, He B, Xu D, Guo Y, Wang H. Intrauterine developmental origin, programming mechanism, and prevention strategy of fetal-originated hypercholesterolemia. Obes Rev 2024; 25:e13672. [PMID: 38069529 DOI: 10.1111/obr.13672] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/30/2023] [Accepted: 11/05/2023] [Indexed: 02/28/2024]
Abstract
There is increasing evidence that hypercholesterolemia has an intrauterine developmental origin. However, the pathogenesis of fetal-originated is still lacking in a theoretical system, which makes its clinical early prevention and treatment difficult. It has been found that an adverse environment during pregnancy (e.g., xenobiotic exposure) may lead to changes in fetal blood cholesterol levels through changing maternal cholesterol metabolic function and/or placental cholesterol transport function and may also directly affect the liver cholesterol metabolic function of the offspring in utero and continue after birth. Adverse environmental conditions during pregnancy may also raise maternal glucocorticoid levels and promote the placental glucocorticoid barrier opening, leading to fetal overexposure to maternal glucocorticoids. Intrauterine high-glucocorticoid exposure can alter the liver cholesterol metabolism of offspring, resulting in an increased susceptibility to hypercholesterolemia after birth. Abnormal epigenetic modifications are involved in the intrauterine programming mechanism of fetal-originated hypercholesterolemia. Some interventions targeted at pregnant mothers or offspring in early life have been proposed to effectively prevent and treat the development of fetal-originated hypercholesterolemia. In this paper, the recent research progress on fetal-originated hypercholesterolemia was reviewed, with emphasis on intrauterine maternal glucocorticoid programming mechanisms, in order to provide a theoretical basis for its early clinical warning, prevention, and treatment.
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Affiliation(s)
- Kexin Liu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, China
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ze Chen
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wen Hu
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Bo He
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
| | - Dan Xu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
| | - Yu Guo
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
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21
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Hussain T, Metwally E, Murtaza G, Kalhoro DH, Chughtai MI, Tan B, Omur AD, Tunio SA, Akbar MS, Kalhoro MS. Redox mechanisms of environmental toxicants on male reproductive function. Front Cell Dev Biol 2024; 12:1333845. [PMID: 38469179 PMCID: PMC10925774 DOI: 10.3389/fcell.2024.1333845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/25/2024] [Indexed: 03/13/2024] Open
Abstract
Humans and wildlife, including domesticated animals, are exposed to a myriad of environmental contaminants that are derived from various human activities, including agricultural, household, cosmetic, pharmaceutical, and industrial products. Excessive exposure to pesticides, heavy metals, and phthalates consequently causes the overproduction of reactive oxygen species. The equilibrium between reactive oxygen species and the antioxidant system is preserved to maintain cellular redox homeostasis. Mitochondria play a key role in cellular function and cell survival. Mitochondria are vulnerable to damage that can be provoked by environmental exposures. Once the mitochondrial metabolism is damaged, it interferes with energy metabolism and eventually causes the overproduction of free radicals. Furthermore, it also perceives inflammation signals to generate an inflammatory response, which is involved in pathophysiological mechanisms. A depleted antioxidant system provokes oxidative stress that triggers inflammation and regulates epigenetic function and apoptotic events. Apart from that, these chemicals influence steroidogenesis, deteriorate sperm quality, and damage male reproductive organs. It is strongly believed that redox signaling molecules are the key regulators that mediate reproductive toxicity. This review article aims to spotlight the redox toxicology of environmental chemicals on male reproduction function and its fertility prognosis. Furthermore, we shed light on the influence of redox signaling and metabolism in modulating the response of environmental toxins to reproductive function. Additionally, we emphasize the supporting evidence from diverse cellular and animal studies.
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Affiliation(s)
- Tarique Hussain
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
- Animal Science Division, Nuclear Institute for Agriculture and Biology College, Pakistan Institute of Engineering and Applied Sciences (NIAB-C, PIEAS), Faisalabad, Pakistan
| | - Elsayed Metwally
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Ghulam Murtaza
- Department of Livestock and Fisheries, Government of Sindh, Karachi, Pakistan
| | - Dildar Hussain Kalhoro
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, Sindh, Pakistan
| | - Muhammad Ismail Chughtai
- Animal Science Division, Nuclear Institute for Agriculture and Biology College, Pakistan Institute of Engineering and Applied Sciences (NIAB-C, PIEAS), Faisalabad, Pakistan
| | - Bie Tan
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Ali Dogan Omur
- Department of Artificial Insemination, Faculty, Veterinary Medicine, Ataturk University, Erzurum, Türkiye
| | - Shakeel Ahmed Tunio
- Department of Livestock Management, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, Sindh, Pakistan
| | - Muhammad Shahzad Akbar
- Faculty of Animal Husbandry and Veterinary Sciences, University of Poonch, Rawalakot, Pakistan
| | - Muhammad Saleem Kalhoro
- Department of Agro-Industrial, Food, and Environmental Technology, Faculty of Applied Science, Food and Agro-Industrial Research Centre, King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand
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Skinner MK. Epigenetic biomarkers for disease susceptibility and preventative medicine. Cell Metab 2024; 36:263-277. [PMID: 38176413 DOI: 10.1016/j.cmet.2023.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/11/2023] [Accepted: 11/28/2023] [Indexed: 01/06/2024]
Abstract
The development of molecular biomarkers for disease makes it possible for preventative medicine approaches to be considered. Therefore, therapeutics, treatments, or clinical management can be used to delay or prevent disease development. The problem with genetic mutations as biomarkers is the low frequency with genome-wide association studies (GWASs), generally at best a 1% association of the patients with the disease. In contrast, epigenetic alterations have a high-frequency association of greater than 90%-95% of individuals with pathology in epigenome-wide association studies (EWASs). A wide variety of human diseases have been shown to have epigenetic biomarkers that are disease specific and that detect pathology susceptibility. This review is focused on the epigenetic biomarkers for disease susceptibility, and it distinct from the large literature on epigenetics of disease etiology or progression. The development of efficient epigenetic biomarkers for disease susceptibility will facilitate a paradigm shift from reactionary medicine to preventative medicine.
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Affiliation(s)
- Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA.
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23
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Wang S, Wu J, Chen Z, Wu W, Lu L, Cheng Y, Li S, Chen L, Tan X, Yang L, Wang C, Song Y. DNA methylation reprogramming mediates transgenerational diabetogenic effect induced by early-life p,p'-DDE exposure. CHEMOSPHERE 2024; 349:140907. [PMID: 38092165 DOI: 10.1016/j.chemosphere.2023.140907] [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: 07/18/2023] [Revised: 11/18/2023] [Accepted: 12/03/2023] [Indexed: 12/19/2023]
Abstract
Increasing evidence shows that an adverse environment during the early fetal development can affect the epigenetic modifications on a wide range of diabetes-related genes, leading to an increased diabetic susceptibility in adulthood or even in subsequent generations. p,p'-Dichlorodiphenoxydichloroethylene (p,p'-DDE) is a break-down product of the pesticide dichlorodiphenyltrichloroethane (DDT). p,p'-DDE has been associated with various health concerns, such as diabetogenic effect. However, the precise molecular mechanism remains unclear. In this study, p,p'-DDE was given by gavage to pregnant rat dams from gestational day (GD) 8 to GD15 to generate male germline to investiagate the transgenerational effects. We found that early-life p,p'-DDE exposure increased the transgenerational diabetic susceptibility through male germline inheritance. In utero exposure to p,p'-DDE altered the sperm DNA methylome in F1 progeny, and a significant number of those differentially methylated genes could be inherited by F2 progeny. Furthermore, early-life p,p'-DDE exposure altered DNA methylation in glucose metabolic genes Gck and G6pc in sperm and the methylation modification were also found in liver of the next generation. Our study demonstrate that DNA methylation plays a critical role in mediating transgenerational diabetogenic effect induced by early-life p,p'-DDE exposure.
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Affiliation(s)
- Shuo Wang
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Jingjing Wu
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Zhong Chen
- Center for Genomics, Loma Linda University School of Medicine, 11021 Campus Street, Loma Linda, CA, 92350, USA
| | - Wei Wu
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Liping Lu
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Yuzhou Cheng
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Shuqi Li
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Liangjing Chen
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Xiaohua Tan
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Lei Yang
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Charles Wang
- Center for Genomics, Loma Linda University School of Medicine, 11021 Campus Street, Loma Linda, CA, 92350, USA
| | - Yang Song
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China.
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24
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Dutta S, Sivakumar KK, Erwin JW, Stanley JA, Arosh JA, Taylor RJ, Banu SK. Alteration of epigenetic methyl and acetyl marks by postnatal chromium(VI) exposure causes apoptotic changes in the ovary of the F1 offspring. Reprod Toxicol 2024; 123:108492. [PMID: 37931768 DOI: 10.1016/j.reprotox.2023.108492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 10/10/2023] [Accepted: 10/22/2023] [Indexed: 11/08/2023]
Abstract
Hexavalent chromium, Cr(VI), is a heavy metal endocrine disruptor used widely in various industries worldwide and is considered a reproductive toxicant. Our previous studies demonstrated that lactational exposure to Cr(VI) caused follicular atresia, disrupted steroid hormone biosynthesis and signaling, and delayed puberty. However, the underlying mechanism was unknown. The current study investigated the effects of Cr(VI) exposure (25 ppm) during postnatal days 1-21 via dam's milk on epigenetic alterations in the ovary of F1 offspring. Data indicated that Cr(VI) disrupted follicle development and caused apoptosis by increasing DNMT3a /3b and histone methyl marks (H3K27me3 and H3K9me3) along with decreasing histone acetylation marks (H3K9ac and H3K27ac). Our study demonstrates that exposure to Cr(VI) causes changes in the epigenetic marks, partially contributing to the transcriptional repression of genes regulating ovarian development, cell proliferation (PCNA), cell survival (BCL-XL and BCL-2), and activation of genes regulating apoptosis (AIF and cleaved caspase-3), resulting in follicular atresia. The current study suggests a role for epigenetics in Cr(VI)-induced ovotoxicity and infertility.
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Affiliation(s)
- Sudipta Dutta
- Department of Veterinary Integrative Biosciences (VIBS), College of Veterinary Medicine & Biomedical Sciences (CVMBS), Texas A& M University, College Station, TX 77843, USA
| | - Kirthiram K Sivakumar
- Department of Veterinary Integrative Biosciences (VIBS), College of Veterinary Medicine & Biomedical Sciences (CVMBS), Texas A& M University, College Station, TX 77843, USA
| | - John W Erwin
- Department of Veterinary Integrative Biosciences (VIBS), College of Veterinary Medicine & Biomedical Sciences (CVMBS), Texas A& M University, College Station, TX 77843, USA
| | - Jone A Stanley
- Department of Veterinary Integrative Biosciences (VIBS), College of Veterinary Medicine & Biomedical Sciences (CVMBS), Texas A& M University, College Station, TX 77843, USA
| | - Joe A Arosh
- Department of Veterinary Integrative Biosciences (VIBS), College of Veterinary Medicine & Biomedical Sciences (CVMBS), Texas A& M University, College Station, TX 77843, USA
| | - Robert J Taylor
- Trace Element Research Laboratory, VIBS, CVMBS, Texas A& M University, College Station, TX 77843, USA
| | - Sakhila K Banu
- Department of Veterinary Integrative Biosciences (VIBS), College of Veterinary Medicine & Biomedical Sciences (CVMBS), Texas A& M University, College Station, TX 77843, USA.
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25
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Dias BG. Legacies of salient environmental experiences-insights from chemosensation. Chem Senses 2024; 49:bjae002. [PMID: 38219073 PMCID: PMC10825851 DOI: 10.1093/chemse/bjae002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Indexed: 01/15/2024] Open
Abstract
Evidence for parental environments profoundly influencing the physiology, biology, and neurobiology of future generations has been accumulating in the literature. Recent efforts to understand this phenomenon and its underlying mechanisms have sought to use species like rodents and insects to model multi-generational legacies of parental experiences like stress and nutritional exposures. From these studies, we have come to appreciate that parental exposure to salient environmental experiences impacts the cadence of brain development, hormonal responses to stress, and the expression of genes that govern cellular responses to stress in offspring. Recent studies using chemosensory exposure have emerged as a powerful tool to shed new light on how future generations come to be influenced by environments to which parents are exposed. With a specific focus on studies that have leveraged such use of salient chemosensory experiences, this review synthesizes our current understanding of the concept, causes, and consequences of the inheritance of chemosensory legacies by future generations and how this field of inquiry informs the larger picture of how parental experiences can influence offspring biology.
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Affiliation(s)
- Brian G Dias
- Developmental Neuroscience and Neurogenetics Program, The Saban Research Institute, Los Angeles, CA, United States
- Division of Endocrinology, Diabetes and Metabolism, Children’s Hospital Los Angeles, Los Angeles, CA, United States
- Department of Pediatrics, Keck School of Medicine of USC, Los Angeles, CA, United States
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26
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Nilsson EE, McBirney M, De Santos S, King SE, Beck D, Greeley C, Holder LB, Skinner MK. Multiple generation distinct toxicant exposures induce epigenetic transgenerational inheritance of enhanced pathology and obesity. ENVIRONMENTAL EPIGENETICS 2023; 9:dvad006. [PMID: 38162685 PMCID: PMC10756336 DOI: 10.1093/eep/dvad006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/12/2023] [Accepted: 12/06/2023] [Indexed: 01/03/2024]
Abstract
Three successive multiple generations of rats were exposed to different toxicants and then bred to the transgenerational F5 generation to assess the impacts of multiple generation different exposures. The current study examines the actions of the agricultural fungicide vinclozolin on the F0 generation, followed by jet fuel hydrocarbon mixture exposure of the F1 generation, and then pesticide dichlorodiphenyltrichloroethane on the F2 generation gestating females. The subsequent F3 and F4 generations and F5 transgenerational generation were obtained and F1-F5 generations examined for male sperm epigenetic alterations and pathology in males and females. Significant impacts on the male sperm differential DNA methylation regions were observed. The F3-F5 generations were similar in ∼50% of the DNA methylation regions. The pathology of each generation was assessed in the testis, ovary, kidney, and prostate, as well as the presence of obesity and tumors. The pathology used a newly developed Deep Learning, artificial intelligence-based histopathology analysis. Observations demonstrated compounded disease impacts in obesity and metabolic parameters, but other pathologies plateaued with smaller increases at the F5 transgenerational generation. Observations demonstrate that multiple generational exposures, which occur in human populations, appear to increase epigenetic impacts and disease susceptibility.
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Affiliation(s)
- Eric E Nilsson
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
| | - Margaux McBirney
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
| | - Sarah De Santos
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
| | - Stephanie E King
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
| | - Daniel Beck
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
| | - Colin Greeley
- School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA 99164, USA
| | - Lawrence B Holder
- School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA 99164, USA
| | - Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
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27
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Kretschmer M, Fischer V, Gapp K. When Dad's Stress Gets under Kid's Skin-Impacts of Stress on Germline Cargo and Embryonic Development. Biomolecules 2023; 13:1750. [PMID: 38136621 PMCID: PMC10742275 DOI: 10.3390/biom13121750] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/24/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023] Open
Abstract
Multiple lines of evidence suggest that paternal psychological stress contributes to an increased prevalence of neuropsychiatric and metabolic diseases in the progeny. While altered paternal care certainly plays a role in such transmitted disease risk, molecular factors in the germline might additionally be at play in humans. This is supported by findings on changes to the molecular make up of germ cells and suggests an epigenetic component in transmission. Several rodent studies demonstrate the correlation between paternal stress induced changes in epigenetic modifications and offspring phenotypic alterations, yet some intriguing cases also start to show mechanistic links in between sperm and the early embryo. In this review, we summarise efforts to understand the mechanism of intergenerational transmission from sperm to the early embryo. In particular, we highlight how stress alters epigenetic modifications in sperm and discuss the potential for these modifications to propagate modified molecular trajectories in the early embryo to give rise to aberrant phenotypes in adult offspring.
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Affiliation(s)
- Miriam Kretschmer
- Laboratory of Epigenetics and Neuroendocrinology, Department of Health Sciences and Technology, Institute for Neuroscience, ETH Zürich, 8057 Zürich, Switzerland; (M.K.); (V.F.)
- Neuroscience Center Zurich, ETH Zürich and University of Zürich, 8057 Zürich, Switzerland
| | - Vincent Fischer
- Laboratory of Epigenetics and Neuroendocrinology, Department of Health Sciences and Technology, Institute for Neuroscience, ETH Zürich, 8057 Zürich, Switzerland; (M.K.); (V.F.)
- Neuroscience Center Zurich, ETH Zürich and University of Zürich, 8057 Zürich, Switzerland
| | - Katharina Gapp
- Laboratory of Epigenetics and Neuroendocrinology, Department of Health Sciences and Technology, Institute for Neuroscience, ETH Zürich, 8057 Zürich, Switzerland; (M.K.); (V.F.)
- Neuroscience Center Zurich, ETH Zürich and University of Zürich, 8057 Zürich, Switzerland
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28
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López-Pérez M, Aguirre-Garrido F, Herrera-Zúñiga L, Fernández FJ. Gene as a dynamical notion: An extensive and integrative vision. Redefining the gene concept, from traditional to genic-interaction, as a new dynamical version. Biosystems 2023; 234:105060. [PMID: 37844827 DOI: 10.1016/j.biosystems.2023.105060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 09/08/2023] [Accepted: 10/10/2023] [Indexed: 10/18/2023]
Abstract
The current concept of gene has been very useful during the 20th and 21st centuries. However, recent advances in molecular biology and bioinformatics, which have further diversified the functional and adaptive profile of genetic information and its integration with cell physiology and environmental response, have contributed to focusing on additional new gene properties besides the traditional definition. Considering the inherent complexity of gene expression, whose adaptive objective must be referred to the Tortoise-Hare model, in which two tendencies converge, one focused on rapid adaptation to achieve survival, and the other that prevents an over-adaptation effect. In this context, a revision of the gene concept must be made, which must include these new mechanisms and approaches. In this paper, we propose a new conception of the idea of a gene that moves from a static and defined version of hereditary information to a dynamic idea that preponderates gene interaction (circumscribed to that established between protein-protein, protein-nucleic acid, and nucleic acid-nucleic acid) and the selection it exerts, as the irreducible element that works in a coordinated way in a genomic regulatory network (GRN).
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Affiliation(s)
- Marcos López-Pérez
- Environmental Sciences Department, Universidad Autónoma Metropolitana (Lerma Unit) Av. de las Garzas N° 10, Col. El Panteón, Municipio de Lerma de Villada, Estado de México, C.P. 52005, Mexico.
| | - Félix Aguirre-Garrido
- Environmental Sciences Department, Universidad Autónoma Metropolitana (Lerma Unit) Av. de las Garzas N° 10, Col. El Panteón, Municipio de Lerma de Villada, Estado de México, C.P. 52005, Mexico
| | - Leonardo Herrera-Zúñiga
- Chemistry Department, Universidad Autónoma Metropolitana (Iztapalapa Unit), C.P. 09340, Mexico City, Mexico
| | - Francisco J Fernández
- Biotechnology Department, Universidad Autónoma Metropolitana (Iztapalapa Unit), C.P. 09340, Mexico City, Mexico.
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29
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Lee SG, Park JE, Cheon YP, Kim JM. Gestational Exposure to Bisphenol A Causes DNA Hypomethylation and the Upregulation of Progesterone Receptor Expression in the Uterus in Adult Female Offspring Rats. Dev Reprod 2023; 27:195-203. [PMID: 38292232 PMCID: PMC10824565 DOI: 10.12717/dr.2023.27.4.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/08/2023] [Accepted: 11/14/2023] [Indexed: 02/01/2024]
Abstract
Exposure to environmental chemicals, including endocrine-disrupting chemicals, during the gestational period can have profound adverse effects on several organs in offspring. Bisphenol A (BPA) can infiltrate the human body through food and drinks, and its metabolites can cross both the placental and the blood-brain barriers. In this study, we investigate the effect of gestational exposure to BPA on epigenetic, biochemical, and histological modifications in the uterine tissues of F1 adult offspring rats. Pregnant rats were exposed to BPA from gestational day 8-15, and changes in global DNA methylation in uterine tissues obtained from adult offspring born to the exposed mothers were analyzed. Global DNA methylation analysis revealed that gestational exposure to BPA resulted in DNA hypomethylation in the uterus. Progesterone receptor (PR) protein expression in uterine tissues was monitored using western blot analysis, which revealed that the PR protein content was considerably higher in all BPA-exposed groups than in the control. Immunohistochemical examination for the PR revealed that intense PR-positive cells were more frequently observed in the BPA-exposed group than in the control group. To date, the evidence that the upregulation of PRs observed in the present study was caused by the non-methylation of specific PR promoter regions is lacking. Conclusively, these results indicate that exposure to BPA during gestation induces epigenetic alterations in the uteri of adult female offspring. We speculate that the global DNA hypomethylation and upregulation of the PR observed simultaneously in this study might be associated with the uterus.
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Affiliation(s)
- Seung Gee Lee
- Department of Anatomy and Cell Biology,
College of Medicine, Dong-A University, Busan
49201, Korea
| | - Ji-Eun Park
- Department of Anatomy and Cell Biology,
College of Medicine, Dong-A University, Busan
49201, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and
Physiology, Department of Biotechnology, Sungshin University,
Seoul 02844, Korea
| | - Jong-Min Kim
- Department of Anatomy and Cell Biology,
College of Medicine, Dong-A University, Busan
49201, Korea
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30
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Zhang Q, Qiu C, Jiang W, Feng P, Xue X, Bukhari I, Mi Y, Zheng P. The impact of dioctyl phthalate exposure on multiple organ systems and gut microbiota in mice. Heliyon 2023; 9:e22677. [PMID: 38107267 PMCID: PMC10724677 DOI: 10.1016/j.heliyon.2023.e22677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 11/16/2023] [Accepted: 11/16/2023] [Indexed: 12/19/2023] Open
Abstract
Dioctyl phthalate, commonly known as bis(2-ethylhexyl) phthalate (DEHP), is a widely used plasticizer in various industries and has been shown to directly or indirectly impact human health. However, there is a lack of comprehensive studies evaluating the potential health risks associated with DEHP accumulation in different organs across various age groups. This study aimed to assess the effects of low (50 mg/kg·bw) and high (500 mg/kg·bw) doses of DEHP on five different organs in mice at young (4-week-old) and aged (76-week-old) life stages. Our findings revealed that both low and high doses of DEHP exposure led to significant dose-dependent inflammation in the liver, spleen, and kidney. Furthermore, regardless of age, DEHP exposure resulted in elevated activity of alanine aminotransferase (ALT) and alkaline phosphatase (ALP) in the liver, as well as increased levels of creatinine (Cr) and urea in the kidney. Moreover, analysis of the fecal microbiota using 16S rRNA sequencing demonstrated that DEHP exposure disrupted the homeostasis of the gut microbiota, characterized by an increased abundance of pathogenic bacteria such as Desulfovibrio and Muribaculum, and a decreased abundance of beneficial bacteria like Lactobacillus. This study provides compelling evidence that DEHP at different concentrations can induce damage to multiple organs and disrupt gut microbiota composition. These findings lay the groundwork for further investigations into DEHP toxicity in various human organs, contributing to a better understanding of the potential health risks associated with DEHP exposure.
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Affiliation(s)
- Qiang Zhang
- Henan Key Laboratory of Helicobacter pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450002, China
- Department of Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Chunjing Qiu
- Henan Key Laboratory of Helicobacter pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450002, China
| | - Wenya Jiang
- Henan Key Laboratory of Helicobacter pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450002, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Pengya Feng
- Henan Key Laboratory of Helicobacter pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450002, China
- Department of Children Rehabilitation Medicine, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xia Xue
- Henan Key Laboratory of Helicobacter pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450002, China
| | - Ihtisham Bukhari
- Henan Key Laboratory of Helicobacter pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450002, China
| | - Yang Mi
- Henan Key Laboratory of Helicobacter pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450002, China
| | - Pengyuan Zheng
- Henan Key Laboratory of Helicobacter pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450002, China
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31
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Duncan GE, Avery A, Maamar MB, Nilsson EE, Beck D, Skinner MK. Epigenome-wide association study of systemic effects of obesity susceptibility in human twins. Epigenetics 2023; 18:2268834. [PMID: 37871278 PMCID: PMC10595392 DOI: 10.1080/15592294.2023.2268834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 10/01/2023] [Indexed: 10/25/2023] Open
Abstract
The current study was designed to use an epigenome-wide association approach (EWAS) to identify potential systemic DNA methylation alterations that are associated with obesity using 22 discordant twin pairs. Buccal cells (from a cheek swab) were used as a non-obesity relevant purified marker cell for the epigenetic analysis. Analysis of differential DNA methylation regions (DMRs) was used to identify epigenetic associations with metabolic and dietary measures related to obesity with discordant twins. An edgeR analysis provided a DMR signature with p < 1e-04, but statistical significance was reduced due to low sample size and known multiple origins of obesity. A weighted gene coexpression network analysis (WGCNA) was performed and identified modules (p < 0.005) of epigenetic sites that correlated with different metabolic and dietary measures. The DMR and WGCNA epigenetic sites were near genes (e.g., CIDEC, SPP1, ZFPG9, and POMC) with previously identified obesity associated pathways (e.g., metabolism, cholesterol, and fat digestion). Observations demonstrate the feasibility of identifying systemic epigenetic biomarkers for obesity, which can be further investigated for clinical relevance in future research with larger sample sizes. The availability of a systemic epigenetic biomarker for obesity susceptibility may facilitate preventative medicine and clinical management of the disease early in life.
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Affiliation(s)
- Glen E. Duncan
- Department of Nutrition and Exercise Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, USA
| | - Ally Avery
- Department of Nutrition and Exercise Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, USA
| | - 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
| | - Daniel Beck
- 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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32
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Smagulova F. [Multigenerational epigenetic inheritance in human: the past, present and perspectives]. Biol Aujourdhui 2023; 217:233-243. [PMID: 38018951 DOI: 10.1051/jbio/2023032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Indexed: 11/30/2023]
Abstract
Nowadays, a growing body of evidence suggests that the developmental programs of each individual could be modified. The acquired new phenotypic changes could be persistent throughout the individual's life and even transmitted to the next generation. While the exact mechanism for that preservation is not well understood yet, there are many evidences showing that epigenetic alterations, which are robust and dynamic in response to the influence of the environmental factors, could be responsible for that inheritance. A growing number of external factors such as social stress, environmental pollution and climate changes make adaptation to these environmental changes rather challenging. According to the Developmental Origin of Human Disease theory, formulated by David Barker, environmental conditions experienced during the first phases of development can have long term effects on later phases of life. This phenomenon is linked to the biological plasticity of development, which allows reprogramming of physiological functions in response to different stimuli. Consequently, in utero exposure to environmental pollutants can increase predisposition to different pathologies that can occur both in early and later phases of life not only in the living generation but also in subsequent ones. Here, we have summarised some findings in human epigenetic research studies performed for the past few years which address the question whether transgenerational effects observed in model organisms could also occur in humans.
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Affiliation(s)
- Fatima Smagulova
- Univ. Rennes, EHESP, Inserm, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, 9 avenue Léon Bernard, 35000 Rennes, France
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33
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Tompkins JD. Transgenerational Epigenetic DNA Methylation Editing and Human Disease. Biomolecules 2023; 13:1684. [PMID: 38136557 PMCID: PMC10742326 DOI: 10.3390/biom13121684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
During gestation, maternal (F0), embryonic (F1), and migrating primordial germ cell (F2) genomes can be simultaneously exposed to environmental influences. Accumulating evidence suggests that operating epi- or above the genetic DNA sequence, covalent DNA methylation (DNAme) can be recorded onto DNA in response to environmental insults, some sites which escape normal germline erasure. These appear to intrinsically regulate future disease propensity, even transgenerationally. Thus, an organism's genome can undergo epigenetic adjustment based on environmental influences experienced by prior generations. During the earliest stages of mammalian development, the three-dimensional presentation of the genome is dramatically changed, and DNAme is removed genome wide. Why, then, do some pathological DNAme patterns appear to be heritable? Are these correctable? In the following sections, I review concepts of transgenerational epigenetics and recent work towards programming transgenerational DNAme. A framework for editing heritable DNAme and challenges are discussed, and ethics in human research is introduced.
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Affiliation(s)
- Joshua D Tompkins
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolism Research Institute, City of Hope, Duarte, CA 91010, USA
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Golding MC. Teratogenesis and the epigenetic programming of congenital defects: Why paternal exposures matter. Birth Defects Res 2023; 115:1825-1834. [PMID: 37424262 PMCID: PMC10774456 DOI: 10.1002/bdr2.2215] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 06/16/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023]
Abstract
Until recently, clinicians and researchers did not realize paternal exposures could impact child developmental outcomes. Indeed, although there is growing recognition that sperm carry a large amount of non-genomic information and that paternal stressors influence the health of the next generation, toxicologists are only now beginning to explore the role paternal exposures have in dysgenesis and the incidence of congenital malformations. In this commentary, I will briefly summarize the few studies describing congenital malformations resulting from preconception paternal stressors, argue for the theoretical expansion of teratogenic perspectives into the male preconception period, and discuss some of the challenges in this newly emerging branch of toxicology. I argue that we must consider gametes the same as any other malleable precursor cell type and recognize that environmentally-induced epigenetic changes acquired during the formation of the sperm and oocyte hold equal teratogenic potential as exposures during early development. Here, I propose the term epiteratogen to reference agents acting outside of pregnancy that, through epigenetic mechanisms, induce congenital malformations. Understanding the interactions between the environment, the essential epigenetic processes intrinsic to spermatogenesis, and their cumulative influences on embryo patterning is essential to addressing a significant blind spot in the field of developmental toxicology.
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Affiliation(s)
- Michael C. Golding
- Department of Veterinary Physiology & Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA, 77843
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Larqué C, Lugo-Martínez H, Mendoza X, Nochebuena M, Novo L, Vilchis R, Sánchez-Bringas G, Ubaldo L, Velasco M, Escalona R. Paternal Obesity Induced by High-Fat Diet Impairs the Metabolic and Reproductive Health of Progeny in Rats. Metabolites 2023; 13:1098. [PMID: 37887423 PMCID: PMC10609116 DOI: 10.3390/metabo13101098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
Due to the increased incidence of obesity, it is of great importance to identify all the possible consequences in those who suffer from it and their descendants. This study aimed to investigate how paternal obesity, resulting from an 18-week high-fat diet (HFD), affects the metabolic and reproductive health of offspring. In the fathers (F0 generation), the HFD led to significant weight gain, primarily due to increased visceral fat. It also resulted in impaired glucose control and reduced insulin sensitivity. Furthermore, F0 males from the HFD group had reduced sperm concentration and lower sperm viability but were still able to sire litters. F1 offspring were monitored during 18 weeks; F1 offspring from obese fathers displayed increased body weight during the experimental window, especially in males, without significant metabolic disturbances. Additionally, F1 males showed reduced sperm viability, indicating potential reproductive implications. On the other hand, F1 females showed normal estrous cycle patterns but had a reduced number of primordial follicles, suggesting a decrease in their follicular reserve and reproductive potential. This study highlights that metabolic and reproductive issues may be passed down to future generations through the paternal line.
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Affiliation(s)
- Carlos Larqué
- Laboratory of Embryology and Genetics, Departamento de Embriología y Genética, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.L.); (H.L.-M.)
| | - Haydée Lugo-Martínez
- Laboratory of Embryology and Genetics, Departamento de Embriología y Genética, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.L.); (H.L.-M.)
| | - Xiadany Mendoza
- Laboratory of Embryology and Genetics, Departamento de Embriología y Genética, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.L.); (H.L.-M.)
| | - Monserrat Nochebuena
- Laboratory of Embryology and Genetics, Departamento de Embriología y Genética, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.L.); (H.L.-M.)
| | - Luis Novo
- Laboratory of Embryology and Genetics, Departamento de Embriología y Genética, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.L.); (H.L.-M.)
| | - Ricardo Vilchis
- Laboratory of Embryology and Genetics, Departamento de Embriología y Genética, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.L.); (H.L.-M.)
| | - Guadalupe Sánchez-Bringas
- Laboratory of Embryology and Genetics, Departamento de Embriología y Genética, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.L.); (H.L.-M.)
| | - Laura Ubaldo
- Departamento de Anatomía, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Myrian Velasco
- Neuroscience Division, Department of Cognitive Neuroscience, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad Universitaria, AP 70-253 Coyoacán, Mexico City 04510, Mexico
| | - Rene Escalona
- Laboratory of Embryology and Genetics, Departamento de Embriología y Genética, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.L.); (H.L.-M.)
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Lahimer M, Abou Diwan M, Montjean D, Cabry R, Bach V, Ajina M, Ben Ali H, Benkhalifa M, Khorsi-Cauet H. Endocrine disrupting chemicals and male fertility: from physiological to molecular effects. Front Public Health 2023; 11:1232646. [PMID: 37886048 PMCID: PMC10598475 DOI: 10.3389/fpubh.2023.1232646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023] Open
Abstract
The deleterious effects of chemical or non-chemical endocrine disruptors (EDs) on male fertility potential is well documented but still not fully elucidated. For example, the detection of industrial chemicals' metabolites in seminal plasma and follicular fluid can affect efficiency of the gametogenesis, the maturation and competency of gametes and has guided scientists to hypothesize that endocrine disrupting chemicals (EDCs) may disrupt hormonal homoeostasis by leading to a wide range of hormonal control impairments. The effects of EDCs exposure on reproductive health are highly dependent on factors including the type of EDCs, the duration of exposure, individual susceptibility, and the presence of other co-factors. Research and scientists continue to study these complex interactions. The aim of this review is to summarize the literature to better understand the potential reproductive health risks of EDCs in France.
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Affiliation(s)
- Marwa Lahimer
- ART and Reproductive Biology Laboratory, University Hospital and School of Medicine, CHU Sud, Amiens, France
- PERITOX-(UMR-I 01), UPJV/INERIS, UPJV, CURS, Chemin du Thil, Amiens, France
- Exercise Physiology and Physiopathology: from Integrated to Molecular “Biology, Medicine and Health” (Code: LR19ES09), Sousse, Tunisia
| | - Maria Abou Diwan
- PERITOX-(UMR-I 01), UPJV/INERIS, UPJV, CURS, Chemin du Thil, Amiens, France
| | - Debbie Montjean
- Fertilys, Centres de Fertilité, Laval and Brossard, QC, Canada
| | - Rosalie Cabry
- ART and Reproductive Biology Laboratory, University Hospital and School of Medicine, CHU Sud, Amiens, France
- PERITOX-(UMR-I 01), UPJV/INERIS, UPJV, CURS, Chemin du Thil, Amiens, France
| | - Véronique Bach
- PERITOX-(UMR-I 01), UPJV/INERIS, UPJV, CURS, Chemin du Thil, Amiens, France
| | - Mounir Ajina
- Service of Reproductive Medicine, University Hospital Farhat Hached, Sousse, Tunisia
| | - Habib Ben Ali
- Laboratory Histology Embryology, Faculty of Medicine Sousse, University of Sousse, Sousse, Tunisia
| | - Moncef Benkhalifa
- ART and Reproductive Biology Laboratory, University Hospital and School of Medicine, CHU Sud, Amiens, France
- PERITOX-(UMR-I 01), UPJV/INERIS, UPJV, CURS, Chemin du Thil, Amiens, France
| | - Hafida Khorsi-Cauet
- ART and Reproductive Biology Laboratory, University Hospital and School of Medicine, CHU Sud, Amiens, France
- PERITOX-(UMR-I 01), UPJV/INERIS, UPJV, CURS, Chemin du Thil, Amiens, France
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Beil J, Perner J, Pfaller L, Gérard MA, Piaia A, Doelemeyer A, Wasserkrug Naor A, Martin L, Piequet A, Dubost V, Chibout SD, Moggs J, Terranova R. Unaltered hepatic wound healing response in male rats with ancestral liver injury. Nat Commun 2023; 14:6353. [PMID: 37816736 PMCID: PMC10564731 DOI: 10.1038/s41467-023-41998-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 09/26/2023] [Indexed: 10/12/2023] Open
Abstract
The possibility that ancestral environmental exposure could result in adaptive inherited effects in mammals has been long debated. Numerous rodent models of transgenerational responses to various environmental factors have been published but due to technical, operational and resource burden, most still await independent confirmation. A previous study reported multigenerational epigenetic adaptation of the hepatic wound healing response upon exposure to the hepatotoxicant carbon tetrachloride (CCl4) in male rats. Here, we comprehensively investigate the transgenerational effects by repeating the original CCl4 multigenerational study with increased power, pedigree tracing, F2 dose-response and suitable randomization schemes. Detailed pathology evaluations do not support adaptive phenotypic suppression of the hepatic wound healing response or a greater fitness of F2 animals with ancestral liver injury exposure. However, transcriptomic analyses identified genes whose expression correlates with ancestral liver injury, although the biological relevance of this apparent transgenerational transmission at the molecular level remains to be determined. This work overall highlights the need for independent evaluation of transgenerational epigenetic inheritance paradigms in mammals.
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Affiliation(s)
- Johanna Beil
- Novartis, Biomedical Research, Basel, Switzerland
| | | | - Lena Pfaller
- Novartis, Biomedical Research, Basel, Switzerland
| | | | | | | | | | - Lori Martin
- Novartis, Biomedical Research, East-Hanover, NJ, USA
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López-Merino E, Cuartero MI, Esteban JA, Briz V. Perinatal exposure to pesticides alters synaptic plasticity signaling and induces behavioral deficits associated with neurodevelopmental disorders. Cell Biol Toxicol 2023; 39:2089-2111. [PMID: 35137321 PMCID: PMC10547633 DOI: 10.1007/s10565-022-09697-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 01/26/2022] [Indexed: 12/17/2022]
Abstract
Increasing evidence from animal and epidemiological studies indicates that perinatal exposure to pesticides cause developmental neurotoxicity and may increase the risk for psychiatric disorders such as autism and intellectual disability. However, the underlying pathogenic mechanisms remain largely elusive. This work was aimed at testing the hypothesis that developmental exposure to different classes of pesticides hijacks intracellular neuronal signaling contributing to synaptic and behavioral alterations associated with neurodevelopmental disorders (NDD). Low concentrations of organochlorine (dieldrin, endosulfan, and chlordane) and organophosphate (chlorpyrifos and its oxon metabolite) pesticides were chronically dosed ex vivo (organotypic rat hippocampal slices) or in vivo (perinatal exposure in rats), and then biochemical, electrophysiological, behavioral, and proteomic studies were performed. All the pesticides tested caused prolonged activation of MAPK/ERK pathway in a concentration-dependent manner. Additionally, some of them impaired metabotropic glutamate receptor-dependent long-term depression (mGluR-LTD). In the case of the pesticide chlordane, the effect was attributed to chronic modulation of MAPK/ERK signaling. These synaptic alterations were reproduced following developmental in vivo exposure to chlordane and chlorpyrifos-oxon, and were also associated with prototypical behavioral phenotypes of NDD, including impaired motor development, increased anxiety, and social and memory deficits. Lastly, proteomic analysis revealed that these pesticides differentially regulate the expression of proteins in the hippocampus with pivotal roles in brain development and synaptic signaling, some of which are associated with NDD. Based on these results, we propose a novel mechanism of synaptic dysfunction, involving chronic overactivation of MAPK and impaired mGluR-LTD, shared by different pesticides which may have important implications for NDD.
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Affiliation(s)
| | - María I Cuartero
- Neurovascular Pathophysiology Group, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - José A Esteban
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain.
| | - Víctor Briz
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain.
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Laine VN, Sepers B, Lindner M, Gawehns F, Ruuskanen S, van Oers K. An ecologist's guide for studying DNA methylation variation in wild vertebrates. Mol Ecol Resour 2023; 23:1488-1508. [PMID: 35466564 DOI: 10.1111/1755-0998.13624] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 03/29/2022] [Accepted: 04/13/2022] [Indexed: 11/30/2022]
Abstract
The field of molecular biology is advancing fast with new powerful technologies, sequencing methods and analysis software being developed constantly. Commonly used tools originally developed for research on humans and model species are now regularly used in ecological and evolutionary research. There is also a growing interest in the causes and consequences of epigenetic variation in natural populations. Studying ecological epigenetics is currently challenging, especially for vertebrate systems, because of the required technical expertise, complications with analyses and interpretation, and limitations in acquiring sufficiently high sample sizes. Importantly, neglecting the limitations of the experimental setup, technology and analyses may affect the reliability and reproducibility, and the extent to which unbiased conclusions can be drawn from these studies. Here, we provide a practical guide for researchers aiming to study DNA methylation variation in wild vertebrates. We review the technical aspects of epigenetic research, concentrating on DNA methylation using bisulfite sequencing, discuss the limitations and possible pitfalls, and how to overcome them through rigid and reproducible data analysis. This review provides a solid foundation for the proper design of epigenetic studies, a clear roadmap on the best practices for correct data analysis and a realistic view on the limitations for studying ecological epigenetics in vertebrates. This review will help researchers studying the ecological and evolutionary implications of epigenetic variation in wild populations.
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Affiliation(s)
- Veronika N Laine
- Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
| | - Bernice Sepers
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Behavioural Ecology Group, Wageningen University & Research (WUR), Wageningen, The Netherlands
| | - Melanie Lindner
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Chronobiology Unit, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, The Netherlands
| | - Fleur Gawehns
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
| | - Suvi Ruuskanen
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
- Department of Biology, University of Turku, Finland
| | - Kees van Oers
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Behavioural Ecology Group, Wageningen University & Research (WUR), Wageningen, The Netherlands
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Maimaiti A, Turhon M, Abulaiti A, Dilixiati Y, Zhang F, Axieer A, Kadeer K, Zhang Y, Maimaitili A, Yang X. DNA methylation regulator-mediated modification patterns and risk of intracranial aneurysm: a multi-omics and epigenome-wide association study integrating machine learning, Mendelian randomization, eQTL and mQTL data. J Transl Med 2023; 21:660. [PMID: 37742034 PMCID: PMC10518114 DOI: 10.1186/s12967-023-04512-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/08/2023] [Indexed: 09/25/2023] Open
Abstract
BACKGROUND Intracranial aneurysms (IAs) pose a significant and intricate challenge. Elucidating the interplay between DNA methylation and IA pathogenesis is paramount to identify potential biomarkers and therapeutic interventions. METHODS We employed a comprehensive bioinformatics investigation of DNA methylation in IA, utilizing a transcriptomics-based methodology that encompassed 100 machine learning algorithms, genome-wide association studies (GWAS), Mendelian randomization (MR), and summary-data-based Mendelian randomization (SMR). Our sophisticated analytical strategy allowed for a systematic assessment of differentially methylated genes and their implications on the onset, progression, and rupture of IA. RESULTS We identified DNA methylation-related genes (MRGs) and associated molecular pathways, and the MR and SMR analyses provided evidence for potential causal links between the observed DNA methylation events and IA predisposition. CONCLUSION These insights not only augment our understanding of the molecular underpinnings of IA but also underscore potential novel biomarkers and therapeutic avenues. Although our study faces inherent limitations and hurdles, it represents a groundbreaking initiative in deciphering the intricate relationship between genetic, epigenetic, and environmental factors implicated in IA pathogenesis.
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Affiliation(s)
- Aierpati Maimaiti
- Department of Neurosurgery, Xinjiang Medical University Affiliated First Hospital, Urumqi, Xinjiang, 830017, People's Republic of China
| | - Mirzat Turhon
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, 100070, Beijing, People's Republic of China
- Department of Interventional Neuroradiology, Beijing TianTan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Aimitaji Abulaiti
- Xinjiang Medical University, Urumqi, Xinjiang, People's Republic of China
| | | | - Fujunhui Zhang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, 100070, Beijing, People's Republic of China
- Department of Interventional Neuroradiology, Beijing TianTan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Aximujiang Axieer
- Department of Neurosurgery, Xinjiang Medical University Affiliated First Hospital, Urumqi, Xinjiang, 830017, People's Republic of China
| | - Kaheerman Kadeer
- Department of Neurosurgery, Xinjiang Medical University Affiliated First Hospital, Urumqi, Xinjiang, 830017, People's Republic of China
| | - Yisen Zhang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, 100070, Beijing, People's Republic of China.
- Department of Interventional Neuroradiology, Beijing TianTan Hospital, Capital Medical University, Beijing, People's Republic of China.
| | - Aisha Maimaitili
- Department of Neurosurgery, Xinjiang Medical University Affiliated First Hospital, Urumqi, Xinjiang, 830017, People's Republic of China.
| | - Xinjian Yang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, 100070, Beijing, People's Republic of China.
- Department of Interventional Neuroradiology, Beijing TianTan Hospital, Capital Medical University, Beijing, People's Republic of China.
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Maleknia M, Ahmadirad N, Golab F, Katebi Y, Haj Mohamad Ebrahim Ketabforoush A. DNA Methylation in Cancer: Epigenetic View of Dietary and Lifestyle Factors. Epigenet Insights 2023; 16:25168657231199893. [PMID: 37720354 PMCID: PMC10504848 DOI: 10.1177/25168657231199893] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/22/2023] [Indexed: 09/19/2023] Open
Abstract
Background Alterations in DNA methylation play an important role in cancer development and progression. Dietary nutrients and lifestyle behaviors can influence DNA methylation patterns and thereby modulate cancer risk. Introduction To comprehensively review available evidence on how dietary and lifestyle factors impact DNA methylation and contribute to carcinogenesis through epigenetic mechanisms. Materials and methods A literature search was conducted using PubMed to identify relevant studies published between 2005 and 2022 that examined relationships between dietary/lifestyle factors and DNA methylation in cancer. Studies investigating the effects of dietary components (eg, micronutrients, phytochemicals), physical activity, smoking, and obesity on global and gene-specific DNA methylation changes in animal and human cancer models were included. Data on specific dietary/lifestyle exposures, cancer types, DNA methylation targets and underlying mechanisms were extracted. Results Multiple dietary and lifestyle factors were found to influence DNA methylation patterns through effects on DNA methyltransferase activity, methyl donor availability, and generation of oxidative stress. Altered methylation of specific genes regulating cell proliferation, apoptosis, and inflammation were linked to cancer development and progression. Conclusion Dietary and lifestyle interventions aimed at modulating DNA methylation have potential for both cancer prevention and treatment through epigenetic mechanisms. Further research is needed to identify actionable targets for nutrition and lifestyle-based epigenetic therapies.
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Affiliation(s)
- Mohsen Maleknia
- Noorgene Genetic & Clinical Laboratory, Molecular Research Center, Ahvaz, Iran
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Nooshin Ahmadirad
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Golab
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Yasmina Katebi
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Gershoni M. Transgenerational transmission of environmental effects in livestock in the age of global warming. Cell Stress Chaperones 2023; 28:445-454. [PMID: 36715961 PMCID: PMC10468476 DOI: 10.1007/s12192-023-01325-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 01/10/2023] [Accepted: 01/22/2023] [Indexed: 01/31/2023] Open
Abstract
Recent decades provide mounting evidence for the continual increase in global temperatures, now termed "global warming," to the point of drastic worldwide change in the climate. Climatic change is a long-term shift in temperatures and weather patterns, including increased frequency and intensity of extreme environmental events such as heat waves accompanied by extreme temperatures and high humidity. Climate change and global warming put several challenges to the livestock industry by directly affecting the animal's production, reproduction, health, and welfare. The broad impact of global warming, and in particular heat stress, on-farm animals' performance has been comprehensively studied. It has been estimated that the US livestock industry's loss caused by heat stress is up to $2.4 billion annually. However, the long-term intergenerational and transgenerational effects of climatic change and global warming on farm animals are sparse. Transgenerational effects, which are mediated by epigenetic mechanisms, can affect the animal's performance regardless of its immediate environment by altering its phenotypic expression to fit its ancestors' environment. In many animal species, environmental effects are epigenetically encoded within a narrow time interval during the organism's gametogenesis, and these epigenetic modifications can then be intergenerationally transmitted. Several epigenetic mechanisms mediate intergenerational transmission of environmental effects, typically in a parent-dependent manner. Therefore, exposure of the animal to an extreme climatic event and other environmental stressors during gametogenesis can undergo epigenetic stabilization in the germline and be passed to the offspring. As a result, the offspring might express a phenotype adjusted to fit the stressors experienced by their ancestors, regardless of their direct environment. The purpose of this perspective is to review current evidence for intergenerational and transgenerational transmission of environmental stress effects, specifically in the context of global warming and climate change, and to offer viewpoints on the possible impacts on the livestock industry.
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Affiliation(s)
- Moran Gershoni
- Institute of Animal Science, Agricultural Research Organization, Volcani Center, 7505101, Rishon LeZion, Israel.
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43
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DiVito Evans A, Fairbanks RA, Schmidt P, Levine MT. Histone methylation regulates reproductive diapause in Drosophila melanogaster. PLoS Genet 2023; 19:e1010906. [PMID: 37703303 PMCID: PMC10499233 DOI: 10.1371/journal.pgen.1010906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 08/07/2023] [Indexed: 09/15/2023] Open
Abstract
Fluctuating environments threaten fertility and viability. To better match the immediate, local environment, many organisms adopt alternative phenotypic states, a phenomenon called "phenotypic plasticity." Natural populations that predictably encounter fluctuating environments tend to be more plastic than conspecific populations that encounter a constant environment, suggesting that phenotypic plasticity can be adaptive. Despite pervasive evidence of such "adaptive phenotypic plasticity," gene regulatory mechanisms underlying plasticity remains poorly understood. Here we test the hypothesis that environment-dependent phenotypic plasticity is mediated by epigenetic factors. To test this hypothesis, we exploit the adaptive reproductive arrest of Drosophila melanogaster females, called diapause. Using an inbred line from a natural population with high diapause plasticity, we demonstrate that diapause is determined epigenetically: only a subset of genetically identical individuals enter diapause and this diapause plasticity is epigenetically transmitted for at least three generations. Upon screening a suite of epigenetic marks, we discovered that the active histone marks H3K4me3 and H3K36me1 are depleted in diapausing ovaries. Using ovary-specific knockdown of histone mark writers and erasers, we demonstrate that H3K4me3 and H3K36me1 depletion promotes diapause. Given that diapause is highly polygenic, that is, distinct suites of alleles mediate diapause plasticity across distinct genotypes, we also investigated the potential for genetic variation in diapause-determining epigenetic marks. Specifically, we asked if these histone marks were similarly depleted in diapause of a genotypically distinct line. We found evidence of divergence in both the gene expression program and histone mark abundance. This study reveals chromatin determinants of phenotypic plasticity and suggests that these determinants may be genotype-dependent, offering new insight into how organisms may exploit and evolve epigenetic mechanisms to persist in fluctuating environments.
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Affiliation(s)
- Abigail DiVito Evans
- Department of Biology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- Epigenetics Institute, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Regina A. Fairbanks
- Department of Biology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- Epigenetics Institute, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Paul Schmidt
- Department of Biology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Mia T. Levine
- Department of Biology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- Epigenetics Institute, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
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Sakashita A, Ooga M, Otsuka K, Maezawa S, Takeuchi C, Wakayama S, Wakayama T, Namekawa S. Polycomb protein SCML2 mediates paternal epigenetic inheritance through sperm chromatin. Nucleic Acids Res 2023; 51:6668-6683. [PMID: 37283086 PMCID: PMC10359620 DOI: 10.1093/nar/gkad479] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/03/2023] [Accepted: 05/20/2023] [Indexed: 06/08/2023] Open
Abstract
Sperm chromatin retains small amounts of histones, and chromatin states of sperm mirror gene expression programs of the next generation. However, it remains largely unknown how paternal epigenetic information is transmitted through sperm chromatin. Here, we present a novel mouse model of paternal epigenetic inheritance, in which deposition of Polycomb repressive complex 2 (PRC2) mediated-repressive H3K27me3 is attenuated in the paternal germline. By applying modified methods of assisted reproductive technology using testicular sperm, we rescued infertility of mice missing Polycomb protein SCML2, which regulates germline gene expression by establishing H3K27me3 on bivalent promoters with other active marks H3K4me2/3. We profiled epigenomic states (H3K27me3 and H3K4me3) of testicular sperm and epididymal sperm, demonstrating that the epididymal pattern of the sperm epigenome is already established in testicular sperm and that SCML2 is required for this process. In F1 males of X-linked Scml2-knockout mice, which have a wild-type genotype, gene expression is dysregulated in the male germline during spermiogenesis. These dysregulated genes are targets of SCML2-mediated H3K27me3 in F0 sperm. Further, dysregulation of gene expression was observed in the mutant-derived wild-type F1 preimplantation embryos. Together, we present functional evidence that the classic epigenetic regulator Polycomb mediates paternal epigenetic inheritance through sperm chromatin.
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Affiliation(s)
- Akihiko Sakashita
- Division of Reproductive Sciences, Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH45229, USA
- Department of Molecular Biology, Keio University School of Medicine, Tokyo160-8582, Japan
| | - Masatoshi Ooga
- Faculty of Life and Environmental Science, University of Yamanashi, Kofu400-8510, Japan
- Department of Microbiology and Molecular Genetics, University of California Davis, Davis, CA95616, USA
- Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa252-5201, Japan
| | - Kai Otsuka
- Department of Microbiology and Molecular Genetics, University of California Davis, Davis, CA95616, USA
| | - So Maezawa
- Division of Reproductive Sciences, Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH45229, USA
- Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa252-5201, Japan
- Faculty of Science and Technology, Department of Applied Biological Science, Tokyo University of Science, Chiba278-8510, Japan
| | - Chikara Takeuchi
- Department of Molecular Biology, Keio University School of Medicine, Tokyo160-8582, Japan
| | - Sayaka Wakayama
- Advanced Biotechnology Center, University of Yamanashi, Kofu400-8510, Japan
| | - Teruhiko Wakayama
- Faculty of Life and Environmental Science, University of Yamanashi, Kofu400-8510, Japan
- Advanced Biotechnology Center, University of Yamanashi, Kofu400-8510, Japan
| | - Satoshi H Namekawa
- Division of Reproductive Sciences, Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH45229, USA
- Department of Microbiology and Molecular Genetics, University of California Davis, Davis, CA95616, USA
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Mc Auley MT. An evolutionary perspective of lifespan and epigenetic inheritance. Exp Gerontol 2023; 179:112256. [PMID: 37460026 DOI: 10.1016/j.exger.2023.112256] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/04/2023] [Accepted: 07/12/2023] [Indexed: 07/21/2023]
Abstract
In the last decade epigenetics has come to the fore as a discipline which is central to biogerontology. Age associated epigenetic changes are routinely linked with pathologies, including cardiovascular disease, cancer, and Alzheimer's disease; moreover, epigenetic clocks are capable of correlating biological age with chronological age in many species including humans. Recent intriguing empirical observations also suggest that inherited epigenetic effects could influence lifespan/longevity in a variety of organisms. If this is the case, an imperative exists to reconcile lifespan/longevity associated inherited epigenetic processes with the evolution of ageing. This review will critically evaluate inherited epigenetic effects from an evolutionary perspective. The overarching aim is to integrate the evidence which suggests epigenetic inheritance modulates lifespan/longevity with the main evolutionary theories of ageing.
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Płotka-Wasylka J, Mulkiewicz E, Lis H, Godlewska K, Kurowska-Susdorf A, Sajid M, Lambropoulou D, Jatkowska N. Endocrine disrupting compounds in the baby's world - A harmful environment to the health of babies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 881:163350. [PMID: 37023800 DOI: 10.1016/j.scitotenv.2023.163350] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/03/2023] [Accepted: 04/03/2023] [Indexed: 06/01/2023]
Abstract
Globally, there has been a significant increase in awareness of the adverse effects of chemicals with known or suspected endocrine-acting properties on human health. Human exposure to endocrine disrupting compounds (EDCs) mainly occurs by ingestion and to some extent by inhalation and dermal uptake. Although it is difficult to assess the full impact of human exposure to EDCs, it is well known that timing of exposure is of importance and therefore infants are more vulnerable to EDCs and are at greater risk compared to adults. In this regard, infant safety and assessment of associations between prenatal exposure to EDCs and growth during infancy and childhood has been received considerable attention in the last years. Hence, the purpose of this review is to provide a current update on the evidence from biomonitoring studies on the exposure of infants to EDCs and a comprehensive view of the uptake, the mechanisms of action and biotransformation in baby/human body. Analytical methods used and concentration levels of EDCs in different biological matrices (e.g., placenta, cord plasma, amniotic fluid, breast milk, urine, and blood of pregnant women) are also discussed. Finally, key issues and recommendations were provided to avoid hazardous exposure to these chemicals, taking into account family and lifestyle factors related to this exposure.
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Affiliation(s)
- Justyna Płotka-Wasylka
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233 Gdańsk, Poland; BioTechMed Center, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233 Gdańsk, Poland.
| | - Ewa Mulkiewicz
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, 63 Wita Stwosza Street, 80-308 Gdańsk, Poland
| | - Hanna Lis
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, 63 Wita Stwosza Street, 80-308 Gdańsk, Poland
| | - Klaudia Godlewska
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, 63 Wita Stwosza Street, 80-308 Gdańsk, Poland
| | | | - Muhammad Sajid
- Applied Research Center for Environment and Marine Studies, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Dimitra Lambropoulou
- Department of Chemistry, Environmental Pollution Control Laboratory, Aristotle University of Thessaloniki, Greece; Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki GR-57001, Greece
| | - Natalia Jatkowska
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233 Gdańsk, Poland.
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Ben Maamar M, Wang Y, Nilsson EE, Beck D, Yan W, Skinner MK. Transgenerational sperm DMRs escape DNA methylation erasure during embryonic development and epigenetic inheritance. ENVIRONMENTAL EPIGENETICS 2023; 9:dvad003. [PMID: 37346491 PMCID: PMC10281242 DOI: 10.1093/eep/dvad003] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/10/2023] [Accepted: 06/01/2023] [Indexed: 06/23/2023]
Abstract
Germline transmission of epigenetic information is a critical component of epigenetic inheritance. Previous studies have suggested that an erasure of DNA methylation is required to develop stem cells in the morula embryo. An exception involves imprinted genes that escape this DNA methylation erasure. Transgenerational differential DNA methylation regions (DMRs) have been speculated to be imprinted-like and escape this erasure. The current study was designed to assess if morula embryos escape the erasure of dichlorodiphenyltrichloroethane-induced transgenerational sperm DMR methylation. Observations demonstrate that the majority (98%) of transgenerational sperm DMR sites retain DNA methylation and are not erased, so appearing similar to imprinted-like sites. Interestingly, observations also demonstrate that the majority of low-density CpG genomic sites had a significant increase in DNA methylation in the morula embryo compared to sperm. This is in contrast to the previously observed DNA methylation erasure of higher-density CpG sites. The general erasure of DNA methylation during embryogenesis appears applicable to high-density DNA methylation sites (e.g. CpG islands) but neither to transgenerational DMR methylation sites nor to low-density CpG deserts, which constitute the vast majority of the genome's DNA methylation sites. The role of epigenetics during embryogenesis appears more dynamic than the simple erasure of DNA methylation.
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Affiliation(s)
- Millissia Ben Maamar
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Yue Wang
- David Geffen School of Medicine at UCLA, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Eric E Nilsson
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Daniel Beck
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Wei Yan
- David Geffen School of Medicine at UCLA, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
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Inanc I, Avlan D, Eker D, Gurkan H. A Genetics Study in the Foreskin of Boys with Hypospadias. Mol Syndromol 2023; 14:185-190. [PMID: 37323199 PMCID: PMC10267525 DOI: 10.1159/000527405] [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: 07/13/2022] [Accepted: 10/05/2022] [Indexed: 12/03/2023] Open
Abstract
Introduction Hypospadias is a malformation of the genitourinary system in males, characterized by the placement of the urethral opening in the ventral surface of the penis. Although controversies continue about etiology, endocrine disrupting chemicals that disrupt normal endocrine signaling at the receptor or signal transduction level are thought to play an essential role in etiology. This study aimed to investigate the receptor gene expressions of the sex hormones and FGFR2, HOXA13, and TGFB1, which are considered to play an essential role in developing hypospadias. Methods The samples from the foreskin of 26 patients with hypospadias and 26 healthy children who underwent circumcision operations were collected. ESR1, AR, FGFR2, HOXA13, and TGFB gene expressions were investigated by real-time PCR in samples obtained during surgery. Results In the hypospadias group, ESR1 expression was increased (p = 0.013), and AR and FGFR2 expressions were decreased, which were found to be statistically significant (p = 0.027 and p = 0.003, respectively). There was no statistically significant difference between hypospadias and control groups in TGFBand HOXA13expression levels (p > 0.05). Discussion The results suggest that sex hormone receptors and FGFR2 may play an essential role in developing male external genital structures at the gene level. The defects in the expression of these genes can contribute to understanding the development of hypospadias.
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Affiliation(s)
- Irem Inanc
- Department of Pediatric Surgery, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Dincer Avlan
- Division of Pediatric Urology, Department of Pediatric Surgery, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Damla Eker
- Department of Medical Genetics, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Hakan Gurkan
- Department of Medical Genetics, Trakya University Faculty of Medicine, Edirne, Turkey
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Peritore AF, Franco GA, Molinari F, Arangia A, Interdonato L, Marino Y, Cuzzocrea S, Gugliandolo E, Britti D, Crupi R. Effect of Pesticide Vinclozolin Toxicity Exposure on Cardiac Oxidative Stress and Myocardial Damage. TOXICS 2023; 11:473. [PMID: 37368573 DOI: 10.3390/toxics11060473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/19/2023] [Accepted: 05/20/2023] [Indexed: 06/29/2023]
Abstract
(1) Background: Vinclozolin is a popular fungicide used in fruit, ornamental plants, and vegetable crops. It has recently been seen that prolonged exposure to VZN can cause human or animal health damage to various organs, but little is known to date about its cardiovascular effects. In this study, we addressed the chronic effects of VZN on the myocardium and the enzymes involved in the cardiovascular function. (2) Methods: The animals were divided into four groups: group 1 served as the control, group 2 received 1 mg/kg of VZN by gavage, group 3 received 30 mg/kg of VZN by gavage, and group 4 received 100 mg/kg of VZN by gavage, for 30 days. (3) Results: Results showed that 100 mg/kg VZN markedly increased the plasma concentration of cardiac markers (CK-MB, cTnT, ANP, BNP). Moreover, compared to the control group, VZN treatment decreased the activity of SOD, CAT, and GPx, and downregulated the mRNA expression levels of Nrf2. Furthermore, collagen deposition was amplified owing to 100 mg/kg VZN cardiotoxicity. This harmful effect was confirmed by a histological study using hematoxylin and eosin (H&E) and Masson's trichrome staining. (4) Conclusion: Overall, our results proved the cardiotoxicity caused by chronic exposure to VZN.
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Affiliation(s)
| | | | - Francesco Molinari
- Department of of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166 Messina, Italy
| | - Alessia Arangia
- Department of of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166 Messina, Italy
| | - Livia Interdonato
- Department of of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166 Messina, Italy
| | - Ylenia Marino
- Department of of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166 Messina, Italy
| | - Salvatore Cuzzocrea
- Department of of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166 Messina, Italy
- Department of Pharmacological and Physiological Science, School of Medicine, Saint Louis University, Saint Louis, MO 63104, USA
| | - Enrico Gugliandolo
- Department of Veterinary Science, University of Messina, 98168 Messina, Italy
| | - Domenico Britti
- Department of Health Sciences, "Magna Græcia University" of Catanzaro, Campus Universitario "Salvatore Venuta" Viale Europa, 88100 Catanzaro, Italy
| | - Rosalia Crupi
- Department of Veterinary Science, University of Messina, 98168 Messina, Italy
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50
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Zappala C, Barrios CD, Depino AM. Social deficits in mice prenatally exposed to valproic acid are intergenerationally inherited and rescued by social enrichment. Neurotoxicology 2023; 97:89-100. [PMID: 37207798 DOI: 10.1016/j.neuro.2023.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 03/06/2023] [Accepted: 05/15/2023] [Indexed: 05/21/2023]
Abstract
Intergenerational transmission of the effects of environmental factors on brain function and behavior can occur through epigenetic mechanisms. Valproic acid (VPA) is an anticonvulsant drug that, when administered during pregnancy, causes various birth defects. The mechanisms of action are largely unclear: VPA can reduce neuronal excitability, but it also inhibits the histone deacetylases, affecting gene expression. Here we evaluated whether the effects of valproic acid prenatal exposure on autism spectrum disorder (ASD)-related behavioral phenotypes can be transmitted to the second generation (F2) through the paternal or the maternal lineage. Indeed, we found that F2 males of the VPA pedigree show reduced sociability, which can be rescued by exposing the animals to social enrichment. Moreover, as is the case for F1 males, F2 VPA males show increased c-Fos expression in the piriform cortex. However, F3 males show normal sociability, indicating that VPA's effects on this behavior are not transgenerationally inherited. Female behavior is not affected by VPA exposure, and we found no evidence of maternal transmission of the consequences of this pharmacological treatment. Finally, all animals exposed to VPA and their descendants show reduced body weight, highlighting an intriguing effect of this compound on metabolism. We propose the VPA model of ASD as a valuable mouse model to study the role of epigenetic inheritance and its underlying mechanisms affecting behavior and neuronal function.
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Affiliation(s)
- Cecilia Zappala
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular, C1428EHA, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Buenos Aires, Argentina
| | - Claudio Dario Barrios
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular, C1428EHA, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Buenos Aires, Argentina
| | - Amaicha Mara Depino
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular, C1428EHA, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, C1428EHA, Buenos Aires, Argentina.
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