1
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Palumbo S, Palumbo D, Cirillo G, Giurato G, Aiello F, Miraglia Del Giudice E, Grandone A. Methylome analysis in girls with idiopathic central precocious puberty. Clin Epigenetics 2024; 16:82. [PMID: 38909248 PMCID: PMC11193236 DOI: 10.1186/s13148-024-01683-1] [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: 02/02/2024] [Accepted: 05/22/2024] [Indexed: 06/24/2024] Open
Abstract
BACKGROUND Genetic and environmental factors are implicated in many developmental processes. Recent evidence, however, has suggested that epigenetic changes may also influence the onset of puberty or the susceptibility to a wide range of diseases later in life. The present study aims to investigate changes in genomic DNA methylation profiles associated with pubertal onset analyzing human peripheral blood leukocytes from three different groups of subjects: 19 girls with central precocious puberty (CPP), 14 healthy prepubertal girls matched by age and 13 healthy pubertal girls matched by pubertal stage. For this purpose, the comparisons were performed between pre- and pubertal controls to identify changes in normal pubertal transition and CPP versus pre- and pubertal controls. RESULTS Analysis of methylation changes associated with normal pubertal transition identified 1006 differentially methylated CpG sites, 86% of them were found to be hypermethylated in prepubertal controls. Some of these CpG sites reside in genes associated with the age of menarche or transcription factors involved in the process of pubertal development. Analysis of methylome profiles in CPP patients showed 65% and 55% hypomethylated CpG sites compared with prepubertal and pubertal controls, respectively. In addition, interestingly, our results revealed the presence of 43 differentially methylated genes coding for zinc finger (ZNF) proteins. Gene ontology and IPA analysis performed in the three groups studied revealed significant enrichment of them in some pathways related to neuronal communication (semaphorin and gustation pathways), estrogens action, some cancers (particularly breast and ovarian) or metabolism (particularly sirtuin). CONCLUSIONS The different methylation profiles of girls with normal and precocious puberty indicate that regulation of the pubertal process in humans is associated with specific epigenetic changes. Differentially methylated genes include ZNF genes that may play a role in developmental control. In addition, our data highlight changes in the methylation status of genes involved in signaling pathways that determine the migration and function of GnRH neurons and the onset of metabolic and neoplastic diseases that may be associated with CPP in later life.
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Affiliation(s)
- Stefania Palumbo
- Department of Women's and Children's Health and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
| | - Domenico Palumbo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry SMS, University of Salerno, Salerno, Italy
| | - Grazia Cirillo
- Department of Women's and Children's Health and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy
| | - Giorgio Giurato
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry SMS, University of Salerno, Salerno, Italy
| | - Francesca Aiello
- Department of Women's and Children's Health and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy
| | - Emanuele Miraglia Del Giudice
- Department of Women's and Children's Health and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy
| | - Anna Grandone
- Department of Women's and Children's Health and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy
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2
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Brito VN, Canton APM, Seraphim CE, Abreu AP, Macedo DB, Mendonca BB, Kaiser UB, Argente J, Latronico AC. The Congenital and Acquired Mechanisms Implicated in the Etiology of Central Precocious Puberty. Endocr Rev 2023; 44:193-221. [PMID: 35930274 PMCID: PMC9985412 DOI: 10.1210/endrev/bnac020] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Indexed: 01/20/2023]
Abstract
The etiology of central precocious puberty (CPP) is multiple and heterogeneous, including congenital and acquired causes that can be associated with structural or functional brain alterations. All causes of CPP culminate in the premature pulsatile secretion of hypothalamic GnRH and, consequently, in the premature reactivation of hypothalamic-pituitary-gonadal axis. The activation of excitatory factors or suppression of inhibitory factors during childhood represent the 2 major mechanisms of CPP, revealing a delicate balance of these opposing neuronal pathways. Hypothalamic hamartoma (HH) is the most well-known congenital cause of CPP with central nervous system abnormalities. Several mechanisms by which hamartoma causes CPP have been proposed, including an anatomical connection to the anterior hypothalamus, autonomous neuroendocrine activity in GnRH neurons, trophic factors secreted by HH, and mechanical pressure applied to the hypothalamus. The importance of genetic and/or epigenetic factors in the underlying mechanisms of CPP has grown significantly in the last decade, as demonstrated by the evidence of genetic abnormalities in hypothalamic structural lesions (eg, hamartomas, gliomas), syndromic disorders associated with CPP (Temple, Prader-Willi, Silver-Russell, and Rett syndromes), and isolated CPP from monogenic defects (MKRN3 and DLK1 loss-of-function mutations). Genetic and epigenetic discoveries involving the etiology of CPP have had influence on the diagnosis and familial counseling providing bases for potential prevention of premature sexual development and new treatment targets in the future. Global preventive actions inducing healthy lifestyle habits and less exposure to endocrine-disrupting chemicals during the lifespan are desirable because they are potentially associated with CPP.
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Affiliation(s)
- Vinicius N Brito
- Discipline of Endocrinology & Metabolism, Department of Internal
Medicine, University of Sao Paulo Medical School, University of Sao
Paulo, Sao Paulo 01246 903, Brazil
| | - Ana P M Canton
- Discipline of Endocrinology & Metabolism, Department of Internal
Medicine, University of Sao Paulo Medical School, University of Sao
Paulo, Sao Paulo 01246 903, Brazil
| | - Carlos Eduardo Seraphim
- Discipline of Endocrinology & Metabolism, Department of Internal
Medicine, University of Sao Paulo Medical School, University of Sao
Paulo, Sao Paulo 01246 903, Brazil
| | - Ana Paula Abreu
- Division of Endocrinology, Diabetes and Hypertension, Department of
Medicine, Brigham and Women’s Hospital, Harvard Medical School,
Boston, MA 02115, USA
| | - Delanie B Macedo
- Discipline of Endocrinology & Metabolism, Department of Internal
Medicine, University of Sao Paulo Medical School, University of Sao
Paulo, Sao Paulo 01246 903, Brazil
- Division of Endocrinology, Diabetes and Hypertension, Department of
Medicine, Brigham and Women’s Hospital, Harvard Medical School,
Boston, MA 02115, USA
- Núcleo de Atenção Médica Integrada, Centro de Ciências da Saúde,
Universidade de Fortaleza, Fortaleza 60811 905,
Brazil
| | - Berenice B Mendonca
- Discipline of Endocrinology & Metabolism, Department of Internal
Medicine, University of Sao Paulo Medical School, University of Sao
Paulo, Sao Paulo 01246 903, Brazil
| | - Ursula B Kaiser
- Division of Endocrinology, Diabetes and Hypertension, Department of
Medicine, Brigham and Women’s Hospital, Harvard Medical School,
Boston, MA 02115, USA
| | - Jesús Argente
- Hospital Infantil Universitario Niño Jesús, Department of Endocrinology and
Department of Pediatrics, Universidad Autónoma de Madrid, Spanish PUBERE Registry,
CIBER of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, IMDEA
Institute, Madrid 28009, Spain
| | - Ana Claudia Latronico
- Discipline of Endocrinology & Metabolism, Department of Internal
Medicine, University of Sao Paulo Medical School, University of Sao
Paulo, Sao Paulo 01246 903, Brazil
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3
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Argente J, Dunkel L, Kaiser UB, Latronico AC, Lomniczi A, Soriano-Guillén L, Tena-Sempere M. Molecular basis of normal and pathological puberty: from basic mechanisms to clinical implications. Lancet Diabetes Endocrinol 2023; 11:203-216. [PMID: 36620967 PMCID: PMC10198266 DOI: 10.1016/s2213-8587(22)00339-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/05/2022] [Accepted: 11/08/2022] [Indexed: 01/07/2023]
Abstract
Puberty is a major maturational event; its mechanisms and timing are driven by genetic determinants, but also controlled by endogenous and environmental cues. Substantial progress towards elucidation of the neuroendocrine networks governing puberty has taken place. However, key aspects of the mechanisms responsible for the precise timing of puberty and its alterations have only recently begun to be deciphered, propelled by epidemiological data suggesting that pubertal timing is changing in humans, via mechanisms that are not yet understood. By integrating basic and clinical data, we provide a comprehensive overview of current advances on the physiological basis of puberty, with a particular focus on the roles of kisspeptins and other central transmitters, the underlying molecular and endocrine mechanisms, and the pathways involved in pubertal modulation by nutritional and metabolic cues. Additionally, we have summarised molecular features of precocious and delayed puberty in both sexes, as revealed by clinical and genetic studies. This Review is a synoptic up-to-date view of how puberty is controlled and of the pathogenesis of major pubertal alterations, from both a clinical and translational perspective. We also highlight unsolved challenges that will seemingly concentrate future research efforts in this active domain of endocrinology.
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Affiliation(s)
- Jesús Argente
- Department of Pediatrics & Pediatric Endocrinology, Universidad Autónoma de Madrid, University Hospital Niño Jesús, Instituto de Investigación Sanitaria La Princesa, Madrid, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain; IMDEA Food Institute, Madrid, Spain.
| | - Leo Dunkel
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London Medical School, London, UK
| | - Ursula B Kaiser
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ana C Latronico
- Developmental Endocrinology Unit, Laboratory of Hormones and Molecular Genetics, LIM42, Department of Endocrinology and Metabolism, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Alejandro Lomniczi
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - Leandro Soriano-Guillén
- Service of Pediatrics, University Hospital Fundación Jiménez Díaz, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid, Madrid, Spain
| | - Manuel Tena-Sempere
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain; Department of Cell Biology, Physiology and Immunology, University of Córdoba, Córdoba, Spain; Instituto Maimónides de Investigación Biomédica de Córdoba, Hospital Universitario Reina Sofia, Córdoba, Spain; Institute of Biomedicine, University of Turku, Turku, Finland.
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Massive Loss of Transcription Factors Promotes the Initial Diversification of Placental Mammals. Int J Mol Sci 2022; 23:ijms23179720. [PMID: 36077118 PMCID: PMC9456351 DOI: 10.3390/ijms23179720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
As one of the most successful group of organisms, mammals occupy a variety of niches on Earth as a result of macroevolution. Transcription factors (TFs), the fundamental regulators of gene expression, may also have evolved. To examine the relationship between TFs and mammalian macroevolution, we analyzed 140,821 de novo-identified TFs and their birth and death histories from 96 mammalian species. Gene tree vs. species tree reconciliation revealed that placental mammals experienced an upsurge in TF losses around 100 million years ago (Mya) and also near the Cretaceous–Paleogene boundary (K–Pg boundary, 66 Mya). Early Euarchontoglires, Laurasiatheria and marsupials appeared between 100 and 95 Mya and underwent initial diversification. The K-Pg boundary was associated with the massive extinction of dinosaurs, which lead to adaptive radiation of mammals. Surprisingly, TF loss decelerated, rather than accelerated, molecular evolutionary rates of their target genes. As the rate of molecular evolution is affected by the mutation rate, the proportion of neutral mutations and the population size, the decrease in molecular evolution may reflect increased functional constraints to survive target genes.
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5
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Terasawa E. The mechanism underlying the pubertal increase in pulsatile GnRH release in primates. J Neuroendocrinol 2022; 34:e13119. [PMID: 35491543 PMCID: PMC9232993 DOI: 10.1111/jne.13119] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 02/17/2022] [Accepted: 03/01/2022] [Indexed: 11/29/2022]
Abstract
In primates, the gonatotropin-releasing hormone (GnRH) neurosecretory system, consisting of GnRH, kisspeptin, and neurokinin B neurons, is active during the neonatal/early infantile period. During the late infantile period, however, activity of the GnRH neurosecretory system becomes minimal as a result of gonadal steroid independent central inhibition, and this suppressed GnRH neurosecretory state continues throughout the prepubertal period. At the initiation of puberty, the GnRH neurosecretory system becomes active again because of the decrease in central inhibition. During the progress of puberty, kisspeptin and neurokinin B signaling to GnRH neurons further increases, resulting in the release of gonadotropins and subsequent gonadal maturation, and hence puberty. This review further discusses potential substrates of central inhibition and subsequent pubertal modification of the GnRH neurosecretory system by the pubertal increase in steroid hormones, which ensures the regulation of adult reproductive function.
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Affiliation(s)
- Ei Terasawa
- Department of Pediatrics and Wisconsin National Primate Research CenterUniversity of Wisconsin‐MadisonMadisonWIUSA
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6
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Sobrino V, Avendaño MS, Perdices-López C, Jimenez-Puyer M, Tena-Sempere M. Kisspeptins and the neuroendocrine control of reproduction: Recent progress and new frontiers in kisspeptin research. Front Neuroendocrinol 2022; 65:100977. [PMID: 34999056 DOI: 10.1016/j.yfrne.2021.100977] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/18/2021] [Accepted: 12/22/2021] [Indexed: 12/31/2022]
Abstract
In late 2003, a major breakthrough in our understanding of the mechanisms that govern reproduction occurred with the identification of the reproductive roles of kisspeptins, encoded by the Kiss1 gene, and their receptor, Gpr54 (aka, Kiss1R). The discovery of this unsuspected reproductive facet attracted an extraordinary interest and boosted an intense research activity, in human and model species, that, in a relatively short period, established a series of basic concepts on the physiological roles of kisspeptins. Such fundamental knowledge, gathered in these early years of kisspeptin research, set the scene for the more recent in-depth dissection of the intimacies of the neuronal networks involving Kiss1 neurons, their precise mechanisms of regulation and the molecular underpinnings of the function of kisspeptins as pivotal regulators of all key aspects of reproductive function, from puberty onset to pulsatile gonadotropin secretion and the metabolic control of fertility. While no clear temporal boundaries between these two periods can be defined, in this review we will summarize the most prominent advances in kisspeptin research occurred in the last ten years, as a means to provide an up-dated view of the state of the art and potential paths of future progress in this dynamic, and ever growing domain of Neuroendocrinology.
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Affiliation(s)
- Veronica Sobrino
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), 14004 Cordoba, Spain; Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain; Hospital Universitario Reina Sofia, 14004 Cordoba, Spain
| | - Maria Soledad Avendaño
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), 14004 Cordoba, Spain; Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain; Hospital Universitario Reina Sofia, 14004 Cordoba, Spain
| | - Cecilia Perdices-López
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), 14004 Cordoba, Spain; Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain; Hospital Universitario Reina Sofia, 14004 Cordoba, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 14004 Cordoba, Spain
| | - Manuel Jimenez-Puyer
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), 14004 Cordoba, Spain; Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain; Hospital Universitario Reina Sofia, 14004 Cordoba, Spain
| | - Manuel Tena-Sempere
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), 14004 Cordoba, Spain; Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain; Hospital Universitario Reina Sofia, 14004 Cordoba, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 14004 Cordoba, Spain; Institute of Biomedicine, University of Turku, FIN-20520 Turku, Finland.
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7
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Franssen D, Svingen T, Lopez Rodriguez D, Van Duursen M, Boberg J, Parent AS. A Putative Adverse Outcome Pathway Network for Disrupted Female Pubertal Onset to Improve Testing and Regulation of Endocrine Disrupting Chemicals. Neuroendocrinology 2022; 112:101-114. [PMID: 33640887 DOI: 10.1159/000515478] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 02/25/2021] [Indexed: 11/19/2022]
Abstract
The average age for pubertal onset in girls has declined over recent decades. Epidemiological studies in humans and experimental studies in animals suggest a causal role for endocrine disrupting chemicals (EDCs) that are present in our environment. Of concern, current testing and screening regimens are inadequate in identifying EDCs that may affect pubertal maturation, not least because they do not consider early-life exposure. Also, the causal relationship between EDC exposure and pubertal timing is still a matter of debate. To address this issue, we have used current knowledge to elaborate a network of putative adverse outcome pathways (pAOPs) to identify how chemicals can affect pubertal onset. By using the AOP framework, we highlight current gaps in mechanistic understanding that need to be addressed and simultaneously point towards events causative of pubertal disturbance that could be exploited for alternative test methods. We propose 6 pAOPs that could explain the disruption of pubertal timing by interfering with the central hypothalamic trigger of puberty, GnRH neurons, and by so doing highlight specific modes of action that could be targeted for alternative test method development.
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Affiliation(s)
- Delphine Franssen
- Neuroendocrinology Unit, GIGA Neurosciences, University of Liège, Liège, Belgium
| | - Terje Svingen
- Division of Diet, Disease Prevention and Toxicology, National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | | | - Majorie Van Duursen
- Department of Environment and Health, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Julie Boberg
- Division of Diet, Disease Prevention and Toxicology, National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Anne-Simone Parent
- Neuroendocrinology Unit, GIGA Neurosciences, University of Liège, Liège, Belgium
- Department of Pediatrics, CHU de Liège, Liège, Belgium
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8
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Pu W, Qian F, Liu J, Shao K, Xiao F, Jin Q, Liu Q, Jiang S, Zhang R, Zhang J, Guo S, Zhang J, Ma Y, Ju S, Ding W. Targeted Bisulfite Sequencing Reveals DNA Methylation Changes in Zinc Finger Family Genes Associated With KRAS Mutated Colorectal Cancer. Front Cell Dev Biol 2021; 9:759813. [PMID: 34778269 PMCID: PMC8581662 DOI: 10.3389/fcell.2021.759813] [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: 08/17/2021] [Accepted: 10/11/2021] [Indexed: 11/24/2022] Open
Abstract
Background: Colorectal cancer (CRC) is a leading cause of cancer death, and early diagnosis of CRC could significantly reduce its mortality rate. Previous studies suggest that the DNA methylation status of zinc finger genes (ZFGs) could be of potential in CRC early diagnosis. However, the comprehensive evaluation of ZFGs in CRC is still lacking. Methods: We first collected 1,426 public samples on genome-wide DNA methylation, including 1,104 cases of CRC tumors, 54 adenomas, and 268 para-tumors. Next, the most differentially methylated ZFGs were identified and validated in two replication cohorts comprising 218 CRC patients. Finally, we compared the prediction capabilities between the ZFGs and the SEPT9 in all CRC patients and the KRAS + and KRAS- subgroup. Results: Five candidate ZFGs were selected: ESR1, ZNF132, ZNF229, ZNF542, and ZNF677. In particular, ESR1 [area under the curve (AUC) = 0.91] and ZNF132 (AUC = 0.93) showed equivalent or better diagnostic capability for CRC than SEPT9 (AUC = 0.91) in the validation dataset, suggesting that these two ZFGs might be of potential for CRC diagnosis in the future. Furthermore, we performed subgroup analysis and found a significantly higher diagnostic capability in KRAS + (AUC ranged from 0.97 to 1) than that in KRAS- patients (AUC ranged from 0.74 to 0.86) for all these five ZFGs, suggesting that these ZFGs could be ideal diagnostic markers for KRAS mutated CRC patients. Conclusion: The methylation profiles of the candidate ZFGs could be potential biomarkers for the early diagnosis of CRC, especially for patients carrying KRAS mutations.
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Affiliation(s)
- Weilin Pu
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China.,State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China
| | - Fei Qian
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Jing Liu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Keke Shao
- Department of Laboratory Medicine, The First People's Hospital of Yancheng City, Yancheng, China
| | - Feng Xiao
- Department of Pathology, The Third People's Hospital of Nantong City, Nantong, China
| | - Qin Jin
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
| | - Qingmei Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Shuai Jiang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Rui Zhang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Jun Zhang
- Department of Gastroenterology, Huashan Hospital, Fudan University, Shanghai, China
| | - Shicheng Guo
- Center for Precision Medicine Research, Marshfield Clinic Research Institute, Marshfield, WI, United States
| | - Jianfeng Zhang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China
| | - Yanyun Ma
- Human Phenome Institute, Fudan University, Shanghai, China.,Six Industrial Research Institute, Fudan University, Shanghai, China
| | - Shaoqing Ju
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Weifeng Ding
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China
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9
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Vazquez MJ, Daza-Dueñas S, Tena-Sempere M. Emerging Roles of Epigenetics in the Control of Reproductive Function: Focus on Central Neuroendocrine Mechanisms. J Endocr Soc 2021; 5:bvab152. [PMID: 34703958 PMCID: PMC8533971 DOI: 10.1210/jendso/bvab152] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Indexed: 12/11/2022] Open
Abstract
Reproduction is an essential function for perpetuation of the species. As such, it is controlled by sophisticated regulatory mechanisms that allow a perfect match between environmental conditions and internal cues to ensure adequate pubertal maturation and achievement of reproductive capacity. Besides classical genetic regulatory events, mounting evidence has documented that different epigenetic mechanisms operate at different levels of the reproductive axis to finely tune the development and function of this complex neuroendocrine system along the lifespan. In this mini-review, we summarize recent evidence on the role of epigenetics in the control of reproduction, with special focus on the modulation of the central components of this axis. Particular attention will be paid to the epigenetic control of puberty and Kiss1 neurons because major developments have taken place in this domain recently. In addition, the putative role of central epigenetic mechanisms in mediating the influence of nutritional and environmental cues on reproductive function will be discussed.
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Affiliation(s)
- Maria Jesus Vazquez
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), 14004 Cordoba, Spain.,Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain.,Hospital Universitario Reina Sofia, 14004 Cordoba, Spain
| | - Silvia Daza-Dueñas
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), 14004 Cordoba, Spain.,Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain
| | - Manuel Tena-Sempere
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), 14004 Cordoba, Spain.,Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain.,Hospital Universitario Reina Sofia, 14004 Cordoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 14004 Cordoba, Spain.,Institute of Biomedicine, University of Turku, FIN-20520 Turku, Finland
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10
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Chandra K, Banerjee A, Das M. Epigenetic and transcriptional regulation of GnRH gene under altered metabolism and ageing. THE NUCLEUS 2021. [DOI: 10.1007/s13237-021-00374-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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11
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Leon S, Talbi R, McCarthy EA, Ferrari K, Fergani C, Naule L, Choi JH, Carroll RS, Kaiser UB, Aylwin CF, Lomniczi A, Navarro VM. Sex-specific pubertal and metabolic regulation of Kiss1 neurons via Nhlh2. eLife 2021; 10:e69765. [PMID: 34494548 PMCID: PMC8439651 DOI: 10.7554/elife.69765] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 09/03/2021] [Indexed: 12/21/2022] Open
Abstract
Hypothalamic Kiss1 neurons control gonadotropin-releasing hormone release through the secretion of kisspeptin. Kiss1 neurons serve as a nodal center that conveys essential regulatory cues for the attainment and maintenance of reproductive function. Despite this critical role, the mechanisms that control kisspeptin synthesis and release remain largely unknown. Using Drop-Seq data from the arcuate nucleus of adult mice and in situ hybridization, we identified Nescient Helix-Loop-Helix 2 (Nhlh2), a transcription factor of the basic helix-loop-helix family, to be enriched in Kiss1 neurons. JASPAR analysis revealed several binding sites for NHLH2 in the Kiss1 and Tac2 (neurokinin B) 5' regulatory regions. In vitro luciferase assays evidenced a robust stimulatory action of NHLH2 on human KISS1 and TAC3 promoters. The recruitment of NHLH2 to the KISS1 and TAC3 promoters was further confirmed through chromatin immunoprecipitation. In vivo conditional ablation of Nhlh2 from Kiss1 neurons using Kiss1Cre:Nhlh2fl/fl mice induced a male-specific delay in puberty onset, in line with a decrease in arcuate Kiss1 expression. Females retained normal reproductive function albeit with irregular estrous cycles. Further analysis of male Kiss1Cre:Nhlh2fl/fl mice revealed higher susceptibility to metabolic challenges in the release of luteinizing hormone and impaired response to leptin. Overall, in Kiss1 neurons, Nhlh2 contributes to the metabolic regulation of kisspeptin and NKB synthesis and release, with implications for the timing of puberty onset and regulation of fertility in male mice.
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Affiliation(s)
- Silvia Leon
- Harvard Medical SchoolBostonUnited States
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Rajae Talbi
- Harvard Medical SchoolBostonUnited States
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Elizabeth A McCarthy
- Harvard Medical SchoolBostonUnited States
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Kaitlin Ferrari
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Chrysanthi Fergani
- Harvard Medical SchoolBostonUnited States
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Lydie Naule
- Harvard Medical SchoolBostonUnited States
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Ji Hae Choi
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Rona S Carroll
- Harvard Medical SchoolBostonUnited States
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Ursula B Kaiser
- Harvard Medical SchoolBostonUnited States
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
| | - Carlos F Aylwin
- Division of Neuroscience, Oregon National Primate Research CenterBeavertonUnited States
| | - Alejandro Lomniczi
- Division of Neuroscience, Oregon National Primate Research CenterBeavertonUnited States
| | - Víctor M Navarro
- Harvard Medical SchoolBostonUnited States
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s HospitalBostonUnited States
- Harvard Program in NeuroscienceBostonUnited States
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12
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Lee KI, Gamini R, Olmer M, Ikuta Y, Hasei J, Baek J, Alvarez-Garcia O, Grogan SP, D'Lima DD, Asahara H, Su AI, Lotz MK. Mohawk is a transcription factor that promotes meniscus cell phenotype and tissue repair and reduces osteoarthritis severity. Sci Transl Med 2021; 12:12/567/eaan7967. [PMID: 33115953 DOI: 10.1126/scitranslmed.aan7967] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 02/06/2020] [Accepted: 09/21/2020] [Indexed: 12/13/2022]
Abstract
Meniscus tears are common knee injuries and a major osteoarthritis (OA) risk factor. Knowledge gaps that limit the development of therapies for meniscus injury and degeneration concern transcription factors that control the meniscus cell phenotype. Analysis of RNA sequencing data from 37 human tissues in the Genotype-Tissue Expression database and RNA sequencing data from meniscus and articular cartilage showed that transcription factor Mohawk (MKX) is highly enriched in meniscus. In human meniscus cells, MKX regulates the expression of meniscus marker genes, OA-related genes, and other transcription factors, including Scleraxis (SCX), SRY Box 5 (SOX5), and Runt domain-related transcription factor 2 (RUNX2). In mesenchymal stem cells (MSCs), the combination of adenoviral MKX (Ad-MKX) and transforming growth factor-β3 (TGF-β3) induced a meniscus cell phenotype. When Ad-MKX-transduced MSCs were seeded on TGF-β3-conjugated decellularized meniscus scaffold (DMS) and inserted into experimental tears in meniscus explants, they increased glycosaminoglycan content, extracellular matrix interconnectivity, cell infiltration into the DMS, and improved biomechanical properties. Ad-MKX injection into mouse knee joints with experimental OA induced by surgical destabilization of the meniscus suppressed meniscus and cartilage damage, reducing OA severity. Ad-MKX injection into human OA meniscus tissue explants corrected pathogenic gene expression. These results identify MKX as a previously unidentified key transcription factor that regulates the meniscus cell phenotype. The combination of Ad-MKX with TGF-β3 is effective for differentiation of MSCs to a meniscus cell phenotype and useful for meniscus repair. MKX is a promising therapeutic target for meniscus tissue engineering, repair, and prevention of OA.
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Affiliation(s)
- Kwang Il Lee
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA
| | - Ramya Gamini
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA
| | - Merissa Olmer
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA
| | - Yasunari Ikuta
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA
| | - Joe Hasei
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA
| | - Jihye Baek
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA.,Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, CA 92037, USA
| | | | - Shawn P Grogan
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA.,Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, CA 92037, USA
| | - Darryl D D'Lima
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA.,Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, CA 92037, USA
| | - Hiroshi Asahara
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA
| | - Andrew I Su
- Department of Integrative, Structural and Computational Biology, Scripps Research, La Jolla, CA 92037, USA
| | - Martin K Lotz
- Department of Molecular Medicine, Scripps Research, La Jolla, CA 92037, USA.
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13
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Iivonen AP, Kärkinen J, Yellapragada V, Sidoroff V, Almusa H, Vaaralahti K, Raivio T. Kallmann syndrome in a patient with Weiss-Kruszka syndrome and a de novo deletion in 9q31.2. Eur J Endocrinol 2021; 185:57-66. [PMID: 33909591 PMCID: PMC8183635 DOI: 10.1530/eje-20-1387] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/28/2021] [Indexed: 12/21/2022]
Abstract
Patients with deletions on chromosome 9q31.2 may exhibit delayed puberty, craniofacial phenotype including cleft lip/palate, and olfactory bulb hypoplasia. We report a patient with congenital HH with anosmia (Kallmann syndrome, KS) and a de novo 2.38 Mb heterozygous deletion in 9q31.2. The deletion breakpoints (determined with whole-genome linked-read sequencing) were in the FKTN gene (9:108,331,353) and in a non-coding area (9:110,707,332) (hg19). The deletion encompassed six protein-coding genes (FKTN, ZNF462, TAL2, TMEM38B, RAD23B, and KLF4). ZNF462 haploinsufficiency was consistent with the patient's Weiss-Kruszka syndrome (craniofacial phenotype, developmental delay, and sensorineural hearing loss), but did not explain his KS. In further analyses, he did not carry rare sequence variants in 32 known KS genes in whole-exome sequencing and displayed no aberrant splicing of 15 KS genes that were expressed in peripheral blood leukocyte transcriptome. The deletion was 1.8 Mb upstream of a KS candidate gene locus (PALM2AKAP2) but did not suppress its expression. In conclusion, this is the first report of a patient with Weiss-Kruszka syndrome and KS. We suggest that patients carrying a microdeletion in 9q31.2 should be evaluated for the presence of KS and KS-related features.
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Affiliation(s)
- Anna-Pauliina Iivonen
- Department of Physiology, Stem Cells and Metabolism Research Program, Faculty of Medicine, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - Juho Kärkinen
- Pediatric Research Center, New Children’s Hospital, Helsinki University Hospital, Helsinki, Finland
| | - Venkatram Yellapragada
- Department of Physiology, Stem Cells and Metabolism Research Program, Faculty of Medicine, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | | | - Henrikki Almusa
- Institute for Molecular Medicine Finland, FIMM, University of Helsinki, Helsinki, Finland
| | - Kirsi Vaaralahti
- Department of Physiology, Stem Cells and Metabolism Research Program, Faculty of Medicine, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - Taneli Raivio
- Department of Physiology, Stem Cells and Metabolism Research Program, Faculty of Medicine, Research Programs Unit, University of Helsinki, Helsinki, Finland
- Pediatric Research Center, New Children’s Hospital, Helsinki University Hospital, Helsinki, Finland
- Correspondence should be addressed to T Raivio;
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14
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Wright H, Aylwin CF, Toro CA, Ojeda SR, Lomniczi A. Polycomb represses a gene network controlling puberty via modulation of histone demethylase Kdm6b expression. Sci Rep 2021; 11:1996. [PMID: 33479437 PMCID: PMC7819995 DOI: 10.1038/s41598-021-81689-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/08/2021] [Indexed: 12/13/2022] Open
Abstract
Female puberty is subject to Polycomb Group (PcG)-dependent transcriptional repression. Kiss1, a puberty-activating gene, is a key target of this silencing mechanism. Using a gain-of-function approach and a systems biology strategy we now show that EED, an essential PcG component, acts in the arcuate nucleus of the hypothalamus to alter the functional organization of a gene network involved in the stimulatory control of puberty. A central node of this network is Kdm6b, which encodes an enzyme that erases the PcG-dependent histone modification H3K27me3. Kiss1 is a first neighbor in the network; genes encoding glutamatergic receptors and potassium channels are second neighbors. By repressing Kdm6b expression, EED increases H3K27me3 abundance at these gene promoters, reducing gene expression throughout a gene network controlling puberty activation. These results indicate that Kdm6b repression is a basic mechanism used by PcG to modulate the biological output of puberty-activating gene networks.
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Affiliation(s)
- Hollis Wright
- Division of Neuroscience, Oregon National Primate Research Center/OHSU, Beaverton, OR, USA
| | - Carlos F Aylwin
- Division of Neuroscience, Oregon National Primate Research Center/OHSU, Beaverton, OR, USA
| | - Carlos A Toro
- Division of Neuroscience, Oregon National Primate Research Center/OHSU, Beaverton, OR, USA
| | - Sergio R Ojeda
- Division of Neuroscience, Oregon National Primate Research Center/OHSU, Beaverton, OR, USA
| | - Alejandro Lomniczi
- Division of Neuroscience, Oregon National Primate Research Center/OHSU, Beaverton, OR, USA.
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15
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Abstract
Puberty, which in humans is considered to include both gonadarche and adrenarche, is the period of becoming capable of reproducing sexually and is recognized by maturation of the gonads and development of secondary sex characteristics. Gonadarche referring to growth and maturation of the gonads is fundamental to puberty since it encompasses increased gonadal steroid secretion and initiation of gametogenesis resulting from enhanced pituitary gonadotropin secretion, triggered in turn by robust pulsatile GnRH release from the hypothalamus. This chapter reviews the development of GnRH pulsatility from before birth until the onset of puberty. In humans, GnRH pulse generation is restrained during childhood and juvenile development. This prepubertal hiatus in hypothalamic activity is considered to result from a neurobiological brake imposed upon the GnRH pulse generator resident in the infundibular nucleus. Reactivation of the GnRH pulse generator initiates pubertal development. Current understanding of the genetics and physiology of the brake will be discussed, as will hypotheses proposed to account for timing the resurgence in pulsatile GnRH and initiation of puberty. The chapter ends with a discussion of disorders associated with precocious or delayed puberty with a focus on those with etiologies attributed to aberrant GnRH neuron anatomy or function. A pediatric approach to patients with pubertal disorders is provided and contemporary treatments for both precocious and delayed puberty outlined.
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Affiliation(s)
- Selma Feldman Witchel
- Pediatric Endocrinology, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, United States.
| | - Tony M Plant
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, United States
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16
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Shalev D, Melamed P. The role of the hypothalamus and pituitary epigenomes in central activation of the reproductive axis at puberty. Mol Cell Endocrinol 2020; 518:111031. [PMID: 32956708 DOI: 10.1016/j.mce.2020.111031] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/02/2020] [Accepted: 09/08/2020] [Indexed: 12/19/2022]
Abstract
Puberty is programmed through a multifactorial gene network which works to activate the pulsatile secretion of the gonadotropin releasing hormone (GnRH), and subsequently elevate circulating levels of the pituitary gonadotropins that stimulate gonadal activity. Although this developmental transition normally occurs at a limited age-range in individuals of the same genetic background and environment, pubertal onset can occur prematurely or be delayed following changes in ambient conditions, or due to genetic variations or mutations, many of which have remained elusive due to their location in distal regulatory elements. Growing evidence is pointing to a pivotal role for the epigenome in regulating key genes in the reproductive hypothalamus and pituitary at this time, which might mediate some of the plasticity of pubertal timing. This review will address epigenetic mechanisms which have been demonstrated in the KNDy neurons that increase the output of pulsatile GnRH, and those involved in activation of the GnRH gene and its receptor, and describes how GnRH utilizes epigenetic mechanisms to stimulate transcription of the pituitary gonadotropin genes in the context of the chromatin landscape.
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Affiliation(s)
- Dor Shalev
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, 32000, Israel
| | - Philippa Melamed
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, 32000, Israel.
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17
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Aging-Associated Alterations in Mammary Epithelia and Stroma Revealed by Single-Cell RNA Sequencing. Cell Rep 2020; 33:108566. [PMID: 33378681 PMCID: PMC7898263 DOI: 10.1016/j.celrep.2020.108566] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/13/2020] [Accepted: 12/07/2020] [Indexed: 12/11/2022] Open
Abstract
Aging is closely associated with increased susceptibility to breast cancer, yet there have been limited systematic studies of aging-induced alterations in the mammary gland. Here, we leverage high-throughput single-cell RNA sequencing to generate a detailed transcriptomic atlas of young and aged murine mammary tissues. By analyzing epithelial, stromal, and immune cells, we identify age-dependent alterations in cell proportions and gene expression, providing evidence that suggests alveolar maturation and physiological decline. The analysis also uncovers potential pro-tumorigenic mechanisms coupled to the age-associated loss of tumor suppressor function and change in microenvironment. In addition, we identify a rare, age-dependent luminal population co-expressing hormone-sensing and secretory-alveolar lineage markers, as well as two macrophage populations expressing distinct gene signatures, underscoring the complex heterogeneity of the mammary epithelia and stroma. Collectively, this rich single-cell atlas reveals the effects of aging on mammary physiology and can serve as a useful resource for understanding aging-associated cancer risk. Using single-cell RNA-sequencing, Li et al. compare mammary epithelia and stroma in young and aged mice. Age-dependent changes at cell and gene levels provide evidence suggesting alveolar maturation, functional deterioration, and potential pro-tumorigenic and inflammatory alterations. Additionally, identification of heterogeneous luminal and macrophage subpopulations underscores the complexity of mammary lineages.
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18
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Sun G, Wang C, Wang S, Sun H, Zeng K, Zou R, Lin L, Liu W, Sun N, Song H, Liu W, Zhou T, Jin F, Shan Z, Zhao Y. An H3K4me3 reader, BAP18 as an adaptor of COMPASS-like core subunits co-activates ERα action and associates with the sensitivity of antiestrogen in breast cancer. Nucleic Acids Res 2020; 48:10768-10784. [PMID: 32986841 PMCID: PMC7641737 DOI: 10.1093/nar/gkaa787] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 08/19/2020] [Accepted: 09/10/2020] [Indexed: 12/18/2022] Open
Abstract
Estrogen receptor alpha (ERα) signaling pathway is essential for ERα-positive breast cancer progression and endocrine therapy resistance. Bromodomain PHD Finger Transcription Factor (BPTF) associated protein of 18kDa (BAP18) has been recognized as a crucial H3K4me3 reader. However, the whole genomic occupation of BAP18 and its biological function in breast cancer is still elusive. Here, we found that higher expression of BAP18 in ERα-positive breast cancer is positively correlated with poor prognosis. ChIP-seq analysis further demonstrated that the half estrogen response elements (EREs) and the CCCTC binding factor (CTCF) binding sites are the significant enrichment sites found in estrogen-induced BAP18 binding sites. Also, we provide the evidence to demonstrate that BAP18 as a novel co-activator of ERα is required for the recruitment of COMPASS-like core subunits to the cis-regulatory element of ERα target genes in breast cancer cells. BAP18 is recruited to the promoter regions of estrogen-induced genes, accompanied with the enrichment of the lysine 4-trimethylated histone H3 tail (H3K4me3) in the presence of E2. Furthermore, BAP18 promotes cell growth and associates the sensitivity of antiestrogen in ERα-positive breast cancer. Our data suggest that BAP18 facilitates the association between ERα and COMPASS-like core subunits, which might be an essential epigenetic therapeutic target for breast cancer.
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Affiliation(s)
- Ge Sun
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Chunyu Wang
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Shengli Wang
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Hongmiao Sun
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Kai Zeng
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Renlong Zou
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Lin Lin
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Wei Liu
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Ning Sun
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Huijuan Song
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Wensu Liu
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Tingting Zhou
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China
| | - Feng Jin
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang City 110001, Liaoning Province, China
| | - Zhongyan Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Affiliated Hospital of China Medical University, ShenyangCity110001, Liaoning Province, China
| | - Yue Zhao
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Sciences, China Medical University, Shenyang City 110122, Liaoning Province, China.,Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Affiliated Hospital of China Medical University, ShenyangCity110001, Liaoning Province, China
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19
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Lau LY, Nguyen LT, Reverter A, Moore SS, Lynn A, McBride‐Kelly L, Phillips‐Rose L, Plath M, Macfarlane R, Vasudivan V, Morton L, Ardley R, Ye Y, Fortes MRS. Gene regulation could be attributed to TCF3 and other key transcription factors in the muscle of pubertal heifers. Vet Med Sci 2020; 6:695-710. [PMID: 32432381 PMCID: PMC7738712 DOI: 10.1002/vms3.278] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 03/13/2020] [Accepted: 04/09/2020] [Indexed: 01/17/2023] Open
Abstract
Puberty is a whole-body event, driven by the hypothalamic integration of peripheral signals such as leptin or IGF-1. In the process of puberty, reproductive development is simultaneous to growth, including muscle growth. To enhance our understanding of muscle function related to puberty, we performed transcriptome analyses of muscle samples from six pre- and six post-pubertal Brahman heifers (Bos indicus). Our aims were to perform differential expression analyses and co-expression analyses to derive a regulatory gene network associate with puberty. As a result, we identified 431 differentially expressed (DEx) transcripts (genes and non-coding RNAs) when comparing pre- to post-pubertal average gene expression. The DEx transcripts were compared with all expressed transcripts in our samples (over 14,000 transcripts) for functional enrichment analyses. The DEx transcripts were associated with "extracellular region," "inflammatory response" and "hormone activity" (adjusted p < .05). Inflammatory response for muscle regeneration is a necessary aspect of muscle growth, which is accelerated during puberty. The term "hormone activity" may signal genes that respond to progesterone signalling in the muscle, as the presence of this hormone is an important difference between pre- and post-pubertal heifers in our experimental design. The DEx transcript with the highest average expression difference was a mitochondrial gene, ENSBTAG00000043574 that might be another important link between energy metabolism and puberty. In the derived co-expression gene network, we identified six hub genes: CDC5L, MYC, TCF3, RUNX2, ATF2 and CREB1. In the same network, 48 key regulators of DEx transcripts were identified, using a regulatory impact factor metric. The hub gene TCF3 was also a key regulator. The majority of the key regulators (22 genes) are members of the zinc finger family, which has been implicated in bovine puberty in other tissues. In conclusion, we described how puberty may affect muscle gene expression in cattle.
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Affiliation(s)
- Li Yieng Lau
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Loan T. Nguyen
- Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQLDAustralia
| | - Antonio Reverter
- CSIRO Agriculture and FoodQueensland Biosciences PrecinctBrisbaneQLDAustralia
| | - Stephen S. Moore
- Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQLDAustralia
| | - Aaron Lynn
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Liam McBride‐Kelly
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Louis Phillips‐Rose
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Mackenzie Plath
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Rhys Macfarlane
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Vanisha Vasudivan
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Lachlan Morton
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Ryan Ardley
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Yunan Ye
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
| | - Marina R. S. Fortes
- School of Chemistry and Molecular BiologyThe University of QueenslandBrisbaneQLDAustralia
- Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQLDAustralia
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20
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Aylwin CF, Lomniczi A. Sirtuin (SIRT)-1: At the crossroads of puberty and metabolism. CURRENT OPINION IN ENDOCRINE AND METABOLIC RESEARCH 2020; 14:65-72. [PMID: 32905232 PMCID: PMC7467505 DOI: 10.1016/j.coemr.2020.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In the arcuate nucleus (ARC) of the hypothalamus reside two neuronal systems in charge of regulating feeding control and reproductive development. The melanocortin system responds to metabolic fluctuations adjusting food intake, whereas kisspeptin neurons are in charge of the excitatory control of Gonadotropin Hormone Releasing Hormone (GnRH) neurons. While it is known that the melanocortin system regulates GnRH neuronal activity, it was recently demonstrated that kisspeptin neurons not only innervate melanocortin neurons, but also play an active role in the control of metabolism. These two neuronal systems are intricately interconnected forming loops of stimulation and inhibition according to metabolic status. Furthermore, intracellular and epigenetic pathways respond to external environmental signals by changing DNA conformation and gene expression. Here we review the role of Silent mating type Information Regulation 2 homologue 1 (Sirt1), a class III NAD+ dependent protein deacetylase, in the ARC control of pubertal development and feeding behavior.
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Affiliation(s)
- Carlos F Aylwin
- Division of Neuroscience, Oregon National Primate Research Center, OHSU, Beaverton, OR, USA
| | - Alejandro Lomniczi
- Division of Neuroscience, Oregon National Primate Research Center, OHSU, Beaverton, OR, USA
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21
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Witchel SF, Plant TM. Intertwined reproductive endocrinology: Puberty and polycystic ovary syndrome. CURRENT OPINION IN ENDOCRINE AND METABOLIC RESEARCH 2020; 14:127-136. [PMID: 33102929 PMCID: PMC7583558 DOI: 10.1016/j.coemr.2020.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a heterogeneous familial disorder often emerging during the peri-pubertal years concomitantly with the onset of gonadarche and adrenarche. Both gonadarche and PCOS reflect functional changes in the hypothalamic-pituitary-ovarian axis. During this transition, normal girls manifest features consistent with PCOS such as irregular menses, mild hyperandrogenism, and multi-follicular ovary morphology. Themes common to puberty and PCOS, neuroendocrine features, androgen exposure, and insulin sensitivity, will be considered to address the possibility that PCOS interferes with the normal pubertal transition.
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Affiliation(s)
- Selma Feldman Witchel
- Division of Pediatric Endocrinology, UPMC Children's Hospital of Pittsburgh/University of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA 15224 USA
| | - Tony M Plant
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, 204 Craft Avenue, Pittsburgh, PA 15213, USA
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22
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Bar-Sadeh B, Rudnizky S, Pnueli L, Bentley GR, Stöger R, Kaplan A, Melamed P. Unravelling the role of epigenetics in reproductive adaptations to early-life environment. Nat Rev Endocrinol 2020; 16:519-533. [PMID: 32620937 DOI: 10.1038/s41574-020-0370-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/11/2020] [Indexed: 11/08/2022]
Abstract
Reproductive function adjusts in response to environmental conditions in order to optimize success. In humans, this plasticity includes age of pubertal onset, hormone levels and age at menopause. These reproductive characteristics vary across populations with distinct lifestyles and following specific childhood events, and point to a role for the early-life environment in shaping adult reproductive trajectories. Epigenetic mechanisms respond to external signals, exert long-term effects on gene expression and have been shown in animal and cellular studies to regulate normal reproductive function, strongly implicating their role in these adaptations. Moreover, human cohort data have revealed differential DNA methylation signatures in proxy tissues that are associated with reproductive phenotypic variation, although the cause-effect relationships are difficult to discern, calling for additional complementary approaches to establish functionality. In this Review, we summarize how adult reproductive function can be shaped by childhood events. We discuss why the influence of the childhood environment on adult reproductive function is an important consideration in understanding how reproduction is regulated and necessitates consideration by clinicians treating women with diverse life histories. The resolution of the molecular mechanisms responsible for human reproductive plasticity could also lead to new approaches for intervention by targeting these epigenetic modifications.
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Affiliation(s)
- Ben Bar-Sadeh
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Sergei Rudnizky
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Lilach Pnueli
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | | | - Reinhard Stöger
- Department of Biological Sciences, University of Nottingham, Nottingham, UK
| | - Ariel Kaplan
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Philippa Melamed
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel.
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23
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Abreu AP, Toro CA, Song YB, Navarro VM, Bosch MA, Eren A, Liang JN, Carroll RS, Latronico AC, Rønnekleiv OK, Aylwin CF, Lomniczi A, Ojeda S, Kaiser UB. MKRN3 inhibits the reproductive axis through actions in kisspeptin-expressing neurons. J Clin Invest 2020; 130:4486-4500. [PMID: 32407292 PMCID: PMC7410046 DOI: 10.1172/jci136564] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 04/30/2020] [Indexed: 12/11/2022] Open
Abstract
The identification of loss-of-function mutations in MKRN3 in patients with central precocious puberty in association with the decrease in MKRN3 expression in the medial basal hypothalamus of mice before the initiation of reproductive maturation suggests that MKRN3 is acting as a brake on gonadotropin-releasing hormone (GnRH) secretion during childhood. In the current study, we investigated the mechanism by which MKRN3 prevents premature manifestation of the pubertal process. We showed that, as in mice, MKRN3 expression is high in the hypothalamus of rats and nonhuman primates early in life, decreases as puberty approaches, and is independent of sex steroid hormones. We demonstrated that Mkrn3 is expressed in Kiss1 neurons of the mouse hypothalamic arcuate nucleus and that MKRN3 repressed promoter activity of human KISS1 and TAC3, 2 key stimulators of GnRH secretion. We further showed that MKRN3 has ubiquitinase activity, that this activity is reduced by MKRN3 mutations affecting the RING finger domain, and that these mutations compromised the ability of MKRN3 to repress KISS1 and TAC3 promoter activity. These results indicate that MKRN3 acts to prevent puberty initiation, at least in part, by repressing KISS1 and TAC3 transcription and that this action may involve an MKRN3-directed ubiquitination-mediated mechanism.
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Affiliation(s)
- Ana Paula Abreu
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Carlos A. Toro
- Division of Neuroscience, Oregon National Primate Research Center–OHSU, Hillsboro, Oregon, USA
| | - Yong Bhum Song
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Victor M. Navarro
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Martha A. Bosch
- Department of Chemical Physiology and Biochemistry, Oregon Health and Science University, Portland, Oregon, USA
| | - Aysegul Eren
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Joy N. Liang
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Rona S. Carroll
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Ana Claudia Latronico
- Laboratório de Hormônios e Genética Molecular, Unidade de Endocrinologia do Desenvolvimento, Disciplina de Endocrinologia e Metabologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Oline K. Rønnekleiv
- Department of Chemical Physiology and Biochemistry, Oregon Health and Science University, Portland, Oregon, USA
| | - Carlos F. Aylwin
- Division of Neuroscience, Oregon National Primate Research Center–OHSU, Hillsboro, Oregon, USA
| | - Alejandro Lomniczi
- Division of Neuroscience, Oregon National Primate Research Center–OHSU, Hillsboro, Oregon, USA
| | - Sergio Ojeda
- Division of Neuroscience, Oregon National Primate Research Center–OHSU, Hillsboro, Oregon, USA
| | - Ursula B. Kaiser
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
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Morrison KE, Cole AB, Kane PJ, Meadows VE, Thompson SM, Bale TL. Pubertal adversity alters chromatin dynamics and stress circuitry in the pregnant brain. Neuropsychopharmacology 2020; 45:1263-1271. [PMID: 32045935 PMCID: PMC7297802 DOI: 10.1038/s41386-020-0634-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/07/2020] [Accepted: 02/03/2020] [Indexed: 01/03/2023]
Abstract
Women who have experienced adverse childhood events (ACEs) around puberty are at the greatest risk for neuropsychiatric disorders across the lifespan. This population is exceptionally vulnerable to neuropsychiatric disease presentation during the hormonally dynamic state of pregnancy. We previously established that chronic adversity around puberty in female mice significantly altered their HPA axis function specifically during pregnancy, modeling the effects of pubertal ACEs we also reported in women. We hypothesized that the pregnancy hormone, allopregnanolone, was involved in presentation of the blunted stress response phenotype by its interaction with the molecular programming that had occurred during pubertal adversity experience. Here, in adult mice previously stressed during puberty, allopregnanolone administration was sufficient to reproduce the decreased corticosterone response after acute stress. Examination of neuronal activation and the electrophysiological properties of CRF neurons in the paraventricular nucleus of the hypothalamus (PVN) found no significant changes in synaptic function that corresponded with the blunted HPA axis reactivity. However, at the chromatin level, utilization of ATAC-Seq profiling demonstrated a dramatic remodeling of DNA accessibility in the PVN following pubertal adversity. Altogether, these data establish a potential molecular mechanism whereby adversity during puberty can enact lasting transcriptional control that manifests only during a unique period of the lifespan where dynamic hormonal changes occur. These results highlight a biological process that may impart an increased risk for a highly vulnerable population, whereby pubertal programming of the PVN results in aberrant HPA axis responsiveness when exposed to the hormonal changes unique to pregnancy.
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Affiliation(s)
- Kathleen E Morrison
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA
- Center for Epigenetic Research in Child Health and Brain Development, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Anthony B Cole
- Department of Physiology, University of Maryland School of Medicine, Baltimore, MD, USA
- Program in Neuroscience, Medical Scientist Training Program, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Patrick J Kane
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Victoria E Meadows
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Scott M Thompson
- Department of Physiology, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Tracy L Bale
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA.
- Center for Epigenetic Research in Child Health and Brain Development, University of Maryland School of Medicine, Baltimore, MD, USA.
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA.
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25
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Garcia JP, Keen KL, Seminara SB, Terasawa E. Role of Kisspeptin and NKB in Puberty in Nonhuman Primates: Sex Differences. Semin Reprod Med 2019; 37:47-55. [PMID: 31847024 DOI: 10.1055/s-0039-3400253] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
To understand the roles of kisspeptin and neurokinin B (NKB) in puberty and sex differences in their involvement, we conducted a series of experiments measuring the release of gonadotropin-releasing hormone (GnRH) and kisspeptin in the median eminence of the hypothalamus in male and female monkeys throughout sexual development. Results indicate that kisspeptin-10 and the NKB agonist, senktide, stimulated GnRH release in males and females at the prepubertal and pubertal stages, but females are much more sensitive to kisspeptin signaling than males. Moreover, throughout the progress of puberty, major remodeling of kisspeptin and NKB signaling pathways for the regulation of GnRH release takes place. In females during puberty, reciprocal pathways (i.e., kisspeptin signaling mediated through NKB neurons and NKB signaling mediated through kisspeptin neurons) are established, to provide powerful and flexible mechanisms for GnRH neurosecretory activity necessary for complex female reproductive function in adulthood. By contrast, during puberty in males, reciprocal pathways are consolidated to a simpler kisspeptin-dominant signaling pathway. Nevertheless, in primates, both kisspeptin and NKB signaling are contributing factors for the pubertal increase in GnRH release, rather than initiating puberty.
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Affiliation(s)
- James P Garcia
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, Wisconsin
| | - Kim L Keen
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, Wisconsin
| | - Stephanie B Seminara
- Department of Medicine, Reproductive Endocrine Unit and the Harvard Reproductive Sciences Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Ei Terasawa
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, Wisconsin.,Department of Pediatrics, University of Wisconsin, Madison, Wisconsin
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26
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Hodes GE, Epperson CN. Sex Differences in Vulnerability and Resilience to Stress Across the Life Span. Biol Psychiatry 2019; 86:421-432. [PMID: 31221426 PMCID: PMC8630768 DOI: 10.1016/j.biopsych.2019.04.028] [Citation(s) in RCA: 234] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 04/08/2019] [Accepted: 04/25/2019] [Indexed: 12/12/2022]
Abstract
Susceptibility and resilience to stress depend on 1) the timing of the exposure with respect to development, 2) the time across the life span at which effects are measured, and 3) the behavioral or biological phenotype under consideration. This translational review examines preclinical stress models that provide clues to causal mechanisms and their relationship to the more complex phenomenon of stress-related psychiatric and cognitive disorders in humans. We examine how genetic sex and epigenetic regulation of hormones contribute to the proximal and distal effects of stress at different epochs of life. Stress during the prenatal period and early postnatal life puts male offspring at risk of developing diseases involving socialization, such as autism spectrum disorder, and attention and cognition, such as attention-deficit/hyperactivity disorder. While female offspring show resilience to some of the proximal effects of prenatal and early postnatal stress, there is evidence that risk associated with developmental insults is unmasked in female offspring following periods of hormonal activation and flux, including puberty, pregnancy, and perimenopause. Likewise, stress exposures during puberty have stronger proximal effects on girls, including an increased risk of developing mood-related and stress-related illnesses, such as depression, anxiety, and posttraumatic stress disorder. Hormonal changes during menopause and andropause impact the processes of memory and emotion in women and men, though women are preferentially at risk for dementia, and childhood adversity further impacts estradiol effects on neural function. We propose that studies to determine mechanisms for stress risk and resilience across the life span must consider the nature and timing of stress exposures as well as the sex of the organism under investigation.
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Affiliation(s)
- Georgia E. Hodes
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - C. Neill Epperson
- Department of Psychiatry, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
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27
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Bhattacharya I, Sen Sharma S, Majumdar SS. Pubertal orchestration of hormones and testis in primates. Mol Reprod Dev 2019; 86:1505-1530. [DOI: 10.1002/mrd.23246] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 07/15/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Indrashis Bhattacharya
- Department of Zoology & BiotechnologyHNB Garhwal University, Srinagar CampusSrinagar India
- Cellular Endocrinology LabNational Institute of ImmunologyNew Delhi India
| | - Souvik Sen Sharma
- Cellular Endocrinology LabNational Institute of ImmunologyNew Delhi India
| | - Subeer S. Majumdar
- Cellular Endocrinology LabNational Institute of ImmunologyNew Delhi India
- Gene and Protein Engineering LabNational Institute of Animal BiotechnologyHyderabad India
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28
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Mancini A, Howard SR, Cabrera CP, Barnes MR, David A, Wehkalampi K, Heger S, Lomniczi A, Guasti L, Ojeda SR, Dunkel L. EAP1 regulation of GnRH promoter activity is important for human pubertal timing. Hum Mol Genet 2019; 28:1357-1368. [PMID: 30608578 PMCID: PMC6452208 DOI: 10.1093/hmg/ddy451] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/21/2018] [Accepted: 12/24/2018] [Indexed: 11/23/2022] Open
Abstract
The initiation of puberty is orchestrated by an augmentation of gonadotropin-releasing hormone (GnRH) secretion from a few thousand hypothalamic neurons. Recent findings have indicated that the neuroendocrine control of puberty may be regulated by a hierarchically organized network of transcriptional factors acting upstream of GnRH. These include enhanced at puberty 1 (EAP1), which contributes to the initiation of female puberty through transactivation of the GnRH promoter. However, no EAP1 mutations have been found in humans with disorders of pubertal timing. We performed whole-exome sequencing in 67 probands and 93 relatives from a large cohort of familial self-limited delayed puberty (DP). Variants were analyzed for rare, potentially pathogenic variants enriched in case versus controls and relevant to the biological control of puberty. We identified one in-frame deletion (Ala221del) and one rare missense variant (Asn770His) in EAP1 in two unrelated families; these variants were highly conserved and potentially pathogenic. Expression studies revealed Eap1 mRNA abundance in peri-pubertal mouse hypothalamus. EAP1 binding to the GnRH1 promoter increased in monkey hypothalamus at the onset of puberty as determined by chromatin immunoprecipitation. Using a luciferase reporter assay, EAP1 mutants showed a reduced ability to trans-activate the GnRH promoter compared to wild-type EAP1, due to reduced protein levels caused by the Ala221del mutation and subcellular mislocation caused by the Asn770His mutation, as revealed by western blot and immunofluorescence, respectively. In conclusion, we have identified the first EAP1 mutations leading to reduced GnRH transcriptional activity resulting in a phenotype of self-limited DP.
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Affiliation(s)
- Alessandra Mancini
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Sasha R Howard
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Claudia P Cabrera
- Centre for Translational Bioinformatics, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Michael R Barnes
- Centre for Translational Bioinformatics, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Alessia David
- Centre for Integrative Systems Biology and Bioinformatics, Department of Life Sciences, Imperial College London, London, UK
| | - Karoliina Wehkalampi
- Children’s Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Sabine Heger
- Department of Pediatric Endocrinology, Children’s Hospital Auf der Bult, Hannover, Germany
| | - Alejandro Lomniczi
- Oregon National Primate Research Center/Oregon Health and Science University, Portland, OR, USA
| | - Leonardo Guasti
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Sergio R Ojeda
- Oregon National Primate Research Center/Oregon Health and Science University, Portland, OR, USA
| | - Leo Dunkel
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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29
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Su Y, Cockerill I, Wang Y, Qin YX, Chang L, Zheng Y, Zhu D. Zinc-Based Biomaterials for Regeneration and Therapy. Trends Biotechnol 2019; 37:428-441. [PMID: 30470548 PMCID: PMC6421092 DOI: 10.1016/j.tibtech.2018.10.009] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/20/2018] [Accepted: 10/22/2018] [Indexed: 12/14/2022]
Abstract
Zinc has been described as the 'calcium of the twenty-first century'. Zinc-based degradable biomaterials have recently emerged thanks to their intrinsic physiological relevance, biocompatibility, biodegradability, and pro-regeneration properties. Zinc-based biomaterials mainly include: metallic zinc alloys, zinc ceramic nanomaterials, and zinc metal-organic frameworks (MOFs). Metallic zinc implants degrade at a desirable rate, matching the healing pace of local tissues, and stimulating remodeling and formation of new tissues. Zinc ceramic nanomaterials are also beneficial for tissue engineering and therapy thanks to their nanostructures and antibacterial properties. MOFs have large surface areas and are easily functionalized, making them ideal for drug delivery and cancer therapy. This review highlights recent developments in zinc-based biomaterials, discusses obstacles to overcome, and pinpoints directions for future research.
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Affiliation(s)
- Yingchao Su
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Irsalan Cockerill
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Yadong Wang
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Yi-Xian Qin
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Lingqian Chang
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA.
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, China.
| | - Donghui Zhu
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA.
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30
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Aylwin CF, Vigh-Conrad K, Lomniczi A. The Emerging Role of Chromatin Remodeling Factors in Female Pubertal Development. Neuroendocrinology 2019; 109:208-217. [PMID: 30731454 PMCID: PMC6794153 DOI: 10.1159/000497745] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 02/06/2019] [Indexed: 12/21/2022]
Abstract
To attain sexual competence, all mammalian species go through puberty, a maturational period during which body growth and development of secondary sexual characteristics occur. Puberty begins when the diurnal pulsatile gonadotropin-releasing hormone (GnRH) release from the hypothalamus increases for a prolonged period of time, driving the adenohypophysis to increase the pulsatile release of luteinizing hormone with diurnal periodicity. Increased pubertal GnRH secretion does not appear to be driven by inherent changes in GnRH neuronal activity; rather, it is induced by changes in transsynaptic and glial inputs to GnRH neurons. We now know that these changes involve a reduction in inhibitory transsynaptic inputs combined with increased transsynaptic and glial excitatory inputs to the GnRH neuronal network. Although the pubertal process is known to have a strong genetic component, during the last several years, epigenetics has been implicated as a significant regulatory mechanism through which GnRH release is first repressed before puberty and is involved later on during the increase in GnRH secretion that brings about the pubertal process. According to this concept, a central target of epigenetic regulation is the transcriptional machinery of neurons implicated in stimulating GnRH release. Here, we will briefly review the hormonal changes associated with the advent of female puberty and the role that excitatory transsynaptic inputs have in this process. In addition, we will examine the 3 major groups of epigenetic modifying enzymes expressed in the neuroendocrine hypothalamus, which was recently shown to be involved in pubertal development and progression.
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Affiliation(s)
- Carlos Francisco Aylwin
- Division of Genetics, Oregon National Primate Research Center, Oregon Health and Science University (OHSU), Beaverton, Oregon, USA
| | - Katinka Vigh-Conrad
- Division of Genetics, Oregon National Primate Research Center, Oregon Health and Science University (OHSU), Beaverton, Oregon, USA
| | - Alejandro Lomniczi
- Division of Genetics, Oregon National Primate Research Center, Oregon Health and Science University (OHSU), Beaverton, Oregon, USA,
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31
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Yellapragada V, Liu X, Lund C, Känsäkoski J, Pulli K, Vuoristo S, Lundin K, Tuuri T, Varjosalo M, Raivio T. MKRN3 Interacts With Several Proteins Implicated in Puberty Timing but Does Not Influence GNRH1 Expression. Front Endocrinol (Lausanne) 2019; 10:48. [PMID: 30800097 PMCID: PMC6375840 DOI: 10.3389/fendo.2019.00048] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 01/21/2019] [Indexed: 12/12/2022] Open
Abstract
Paternally-inherited loss-of-function mutations in makorin ring finger protein 3 gene (MKRN3) underlie central precocious puberty. To investigate the puberty-related mechanism(s) of MKRN3 in humans, we generated two distinct bi-allelic MKRN3 knock-out human pluripotent stem cell lines, Del 1 and Del 2, and differentiated them into GNRH1-expressing neurons. Both Del 1 and Del 2 clones could be differentiated into neuronal progenitors and GNRH1-expressing neurons, however, the relative expression of GNRH1 did not differ from wild type cells (P = NS). Subsequently, we investigated stable and dynamic protein-protein interaction (PPI) partners of MKRN3 by stably expressing it in HEK cells followed by mass spectrometry analyses. We found 81 high-confidence novel protein interaction partners, which are implicated in cellular processes such as insulin signaling, RNA metabolism and cell-cell adhesion. Of the identified interactors, 20 have been previously implicated in puberty timing. In conclusion, our stem cell model for generation of GNRH1-expressing neurons did not offer mechanistic insight for the role of MKRN3 in puberty initiation. The PPI data, however, indicate that MKRN3 may regulate puberty by interacting with other puberty-related proteins. Further studies are required to elucidate the possible mechanisms and outcomes of these interactions.
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Affiliation(s)
- Venkatram Yellapragada
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Xiaonan Liu
- Molecular Systems Biology Research Group, Institute of Biotechnology & HiLIFE, University of Helsinki, Helsinki, Finland
- Proteomics Unit, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Carina Lund
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Johanna Känsäkoski
- Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Kristiina Pulli
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Sanna Vuoristo
- Department of Obstetrics and Gynecology, Helsinki University Hospital, HUH, Helsinki, Finland
| | - Karolina Lundin
- Department of Obstetrics and Gynecology, Helsinki University Hospital, HUH, Helsinki, Finland
| | - Timo Tuuri
- Department of Obstetrics and Gynecology, Helsinki University Hospital, HUH, Helsinki, Finland
| | - Markku Varjosalo
- Molecular Systems Biology Research Group, Institute of Biotechnology & HiLIFE, University of Helsinki, Helsinki, Finland
- Proteomics Unit, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Taneli Raivio
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- New Children's Hospital, Pediatric Research Center, Helsinki University Hospital, HUH, Helsinki, Finland
- *Correspondence: Taneli Raivio
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32
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Abstract
Delayed pubertal onset has many etiologies, but on average two-thirds of patients presenting with late puberty have self-limited (or constitutional) delayed puberty. Self-limited delayed puberty often has a strong familial basis. Segregation analyses from previous studies show complex models of inheritance, most commonly autosomal dominant, but also including autosomal recessive, bilineal, and X-linked. Sporadic cases are also observed. Despite this, the neuroendocrine mechanisms and genetic regulation remain unclear in the majority of patients with self-limited delayed puberty. Only rarely have mutations in genes known to cause aberrations of the hypothalamic-pituitary-gonadal axis been identified in cases of delayed puberty, and the majority of these are in relatives of patients with congenital hypogonadotropic hypogonadism (CHH), for example in the FGFR1 and GNRHR genes. Using next generation sequencing in a large family with isolated self-limited delayed puberty, a pathogenic mutation in the CHH gene HS6ST1 was found as the likely cause for this phenotype. Additionally, a study comparing the frequency of mutations in genes that cause GnRH deficiency between probands with CHH and probands with isolated self-limited delayed puberty identified that a significantly higher proportion of mutations with a greater degree of oligogenicity were seen in the CHH group. Mutations in the gene IGSF10 have been implicated in the pathogenesis of familial late puberty in a large Finnish cohort. IGSF10 disruption represents a fetal origin of delayed puberty, with dysregulation of GnRH neuronal migration during embryonic development presenting for the first time in adolescence as late puberty. Some patients with self-limited delayed puberty have distinct constitutional features of growth and puberty. Deleterious variants in FTO have been found in families with delayed puberty with extremely low BMI and maturational delay in growth in early childhood. Recent exciting evidence highlights the importance of epigenetic up-regulation of GnRH transcription by a network of miRNAs and transcription factors, including EAP1, during puberty. Whilst a fascinating heterogeneity of genetic defects have been shown to result in delayed and disordered puberty, and many are yet to be discovered, genetic testing may become a realistic diagnostic tool for the differentiation of conditions of delayed puberty.
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Bessa DS, Maschietto M, Aylwin CF, Canton APM, Brito VN, Macedo DB, Cunha-Silva M, Palhares HMC, de Resende EAMR, Borges MDF, Mendonca BB, Netchine I, Krepischi ACV, Lomniczi A, Ojeda SR, Latronico AC. Methylome profiling of healthy and central precocious puberty girls. Clin Epigenetics 2018; 10:146. [PMID: 30466473 PMCID: PMC6251202 DOI: 10.1186/s13148-018-0581-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/07/2018] [Indexed: 12/16/2022] Open
Abstract
Background Recent studies demonstrated that changes in DNA methylation (DNAm) and inactivation of two imprinted genes (MKRN3 and DLK1) alter the onset of female puberty. We aimed to investigate the association of DNAm profiling with the timing of human puberty analyzing the genome-wide DNAm patterns of peripheral blood leukocytes from ten female patients with central precocious puberty (CPP) and 33 healthy girls (15 pre- and 18 post-pubertal). For this purpose, we performed comparisons between the groups: pre- versus post-pubertal, CPP versus pre-pubertal, and CPP versus post-pubertal. Results Analyzing the methylome changes associated with normal puberty, we identified 120 differentially methylated regions (DMRs) when comparing pre- and post-pubertal healthy girls. Most of these DMRs were hypermethylated in the pubertal group (99%) and located on the X chromosome (74%). Only one genomic region, containing the promoter of ZFP57, was hypomethylated in the pubertal group. ZFP57 is a transcriptional repressor required for both methylation and imprinting of multiple genomic loci. ZFP57 expression in the hypothalamus of female rhesus monkeys increased during peripubertal development, suggesting enhanced repression of downstream ZFP57 target genes. Fourteen other zinc finger (ZNF) genes were related to the hypermethylated DMRs at normal puberty. Analyzing the methylome changes associated with CPP, we demonstrated that the patients with CPP exhibited more hypermethylated CpG sites compared to both pre-pubertal (81%) and pubertal (89%) controls. Forty-eight ZNF genes were identified as having hypermethylated CpG sites in CPP. Conclusion Methylome profiling of girls at normal and precocious puberty revealed a widespread pattern of DNA hypermethylation, indicating that the pubertal process in humans is associated with specific changes in epigenetically driven regulatory control. Moreover, changes in methylation of several ZNF genes appear to be a distinct epigenetic modification underlying the initiation of human puberty. Electronic supplementary material The online version of this article (10.1186/s13148-018-0581-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Danielle S Bessa
- Division of Endocrinology & Metabolism, Development Endocrinology Unit, Laboratory of Hormones and Molecular Genetics/LIM42, Clinical Hospital, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Mariana Maschietto
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP, Brazil
| | | | - Ana P M Canton
- Division of Endocrinology & Metabolism, Development Endocrinology Unit, Laboratory of Hormones and Molecular Genetics/LIM42, Clinical Hospital, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil.,Sorbonne Université, INSERM, UMR_S 938 Centre de Recherche Saint Antoine, APHP, Hôpital Armand Trousseau, Explorations Fonctionnelles Endocriniennes, Paris, France
| | - Vinicius N Brito
- Division of Endocrinology & Metabolism, Development Endocrinology Unit, Laboratory of Hormones and Molecular Genetics/LIM42, Clinical Hospital, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Delanie B Macedo
- Division of Endocrinology & Metabolism, Development Endocrinology Unit, Laboratory of Hormones and Molecular Genetics/LIM42, Clinical Hospital, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Marina Cunha-Silva
- Division of Endocrinology & Metabolism, Development Endocrinology Unit, Laboratory of Hormones and Molecular Genetics/LIM42, Clinical Hospital, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Heloísa M C Palhares
- Division of Endocrinology, Triangulo Mineiro Federal University, Uberaba, MG, Brazil
| | | | | | - Berenice B Mendonca
- Division of Endocrinology & Metabolism, Development Endocrinology Unit, Laboratory of Hormones and Molecular Genetics/LIM42, Clinical Hospital, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Irene Netchine
- Sorbonne Université, INSERM, UMR_S 938 Centre de Recherche Saint Antoine, APHP, Hôpital Armand Trousseau, Explorations Fonctionnelles Endocriniennes, Paris, France
| | - Ana C V Krepischi
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Alejandro Lomniczi
- Division of Genetics, Oregon National Primate Research Center/OHSU, Beaverton, OR, USA.,Division of Neuroscience, Oregon National Primate Research Center/OHSU, Beaverton, OR, USA
| | - Sergio R Ojeda
- Division of Neuroscience, Oregon National Primate Research Center/OHSU, Beaverton, OR, USA
| | - Ana Claudia Latronico
- Division of Endocrinology & Metabolism, Development Endocrinology Unit, Laboratory of Hormones and Molecular Genetics/LIM42, Clinical Hospital, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil. .,Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, Departamento de Clínica Médica, Disciplina de Endocrinologia e Metabologia, Av. Dr. Enéas de Carvalho Aguiar, 255, 7° andar, sala 7037, São Paulo, CEP: 05403-900, Brazil.
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34
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SIRT1 mediates obesity- and nutrient-dependent perturbation of pubertal timing by epigenetically controlling Kiss1 expression. Nat Commun 2018; 9:4194. [PMID: 30305620 PMCID: PMC6179991 DOI: 10.1038/s41467-018-06459-9] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 09/04/2018] [Indexed: 12/12/2022] Open
Abstract
Puberty is regulated by epigenetic mechanisms and is highly sensitive to metabolic and nutritional cues. However, the epigenetic pathways mediating the effects of nutrition and obesity on pubertal timing are unknown. Here, we identify Sirtuin 1 (SIRT1), a fuel-sensing deacetylase, as a molecule that restrains female puberty via epigenetic repression of the puberty-activating gene, Kiss1. SIRT1 is expressed in hypothalamic Kiss1 neurons and suppresses Kiss1 expression. SIRT1 interacts with the Polycomb silencing complex to decrease Kiss1 promoter activity. As puberty approaches, SIRT1 is evicted from the Kiss1 promoter facilitating a repressive-to-permissive switch in chromatin landscape. Early-onset overnutrition accelerates these changes, enhances Kiss1 expression and advances puberty. In contrast, undernutrition raises SIRT1 levels, protracts Kiss1 repression and delays puberty. This delay is mimicked by central pharmacological activation of SIRT1 or SIRT1 overexpression, achieved via transgenesis or virogenetic targeting to the ARC. Our results identify SIRT1-mediated inhibition of Kiss1 as key epigenetic mechanism by which nutritional cues and obesity influence mammalian puberty. The onset of mammalian puberty is sensitive to metabolic changes and nutritional status, but the mechanisms underlying this phenomenon are poorly understood. Here the authors show that the epigenetic regulator of transcription, SIRT1, mediates the effects of under and overnutrition on pubertal timing by controlling the expression of Kiss1 in hypothalamic neurons.
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35
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Fortes MRS, Zacchi LF, Nguyen LT, Raidan F, Weller MMDCA, Choo JJY, Reverter A, Rego JPA, Boe-Hansen GB, Porto-Neto LR, Lehnert SA, Cánovas A, Schulz BL, Islas-Trejo A, Medrano JF, Thomas MG, Moore SS. Pre- and post-puberty expression of genes and proteins in the uterus of Bos indicus heifers: the luteal phase effect post-puberty. Anim Genet 2018; 49:539-549. [PMID: 30192028 DOI: 10.1111/age.12721] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2018] [Indexed: 12/17/2022]
Abstract
Progesterone signaling and uterine function are crucial in terms of pregnancy establishment. To investigate how the uterine tissue and its secretion changes in relation to puberty, we sampled tissue and uterine fluid from six pre- and six post-pubertal Brahman heifers. Post-pubertal heifers were sampled in the luteal phase. Gene expression of the uterine tissue was investigated with RNA-sequencing, whereas the uterine fluid was used for protein profiling with mass spectrometry. A total of 4034 genes were differentially expressed (DE) at a nominal P-value of 0.05, and 26 genes were significantly DE after Bonferroni correction (P < 3.1 × 10-6 ). We also identified 79 proteins (out of 230 proteins) that were DE (P < 1 × 10-5 ) in the uterine fluid. When we compared proteomics and transcriptome results, four DE proteins were identified as being encoded by DE genes: OVGP1, GRP, CAP1 and HBA. Except for CAP1, the other three had lower expression post-puberty. The function of these four genes hypothetically related to preparation of the uterus for a potential pregnancy is discussed in the context of puberty. All DE genes and proteins were also used in pathway and ontology enrichment analyses to investigate overall function. The DE genes were enriched for terms related to ribosomal activity. Transcription factors that were deemed key regulators of DE genes are also reported. Transcription factors ZNF567, ZNF775, RELA, PIAS2, LHX4, SOX2, MEF2C, ZNF354C, HMG20A, TCF7L2, ZNF420, HIC1, GTF3A and two novel genes had the highest regulatory impact factor scores. These data can help to understand how puberty influences uterine function.
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Affiliation(s)
- M R S Fortes
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - L F Zacchi
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - L T Nguyen
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia.,Faculty of Biotechnology, Vietnam National University of Agriculture, Gialam, Hanoi, Vietnam
| | - F Raidan
- Animal Science Department, Universidade Federal de Viçosa, Vicosa, Minas Gerais, 36570-900, Brazil
| | - M M D C A Weller
- CSIRO Agriculture and Food, Queensland Bioscience Precinct, Brisbane, QLD 4072, Australia
| | - J J Y Choo
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - A Reverter
- Animal Science Department, Universidade Federal de Viçosa, Vicosa, Minas Gerais, 36570-900, Brazil
| | - J P A Rego
- Instituto Federal de Educação, Ciência e Tecnologia do Ceara, Fortaleza, Ceará, 62930-000, Brazil
| | - G B Boe-Hansen
- School of Veterinary Sciences, The University of Queensland, Gatton, QLD 4343, Australia
| | - L R Porto-Neto
- Animal Science Department, Universidade Federal de Viçosa, Vicosa, Minas Gerais, 36570-900, Brazil
| | - S A Lehnert
- Animal Science Department, Universidade Federal de Viçosa, Vicosa, Minas Gerais, 36570-900, Brazil
| | - A Cánovas
- Department of Animal Biosciences, Centre of Genetic Improvement for Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - B L Schulz
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - A Islas-Trejo
- Department of Animal Science, University of California Davis, Davis, CA, 95616, USA
| | - J F Medrano
- Department of Animal Science, University of California Davis, Davis, CA, 95616, USA
| | - M G Thomas
- Department of Animal Science, Colorado State University, Fort Collins, CO, 80523, USA
| | - S S Moore
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD 4072, Australia
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36
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Garcia JP, Keen KL, Kenealy BP, Seminara SB, Terasawa E. Role of Kisspeptin and Neurokinin B Signaling in Male Rhesus Monkey Puberty. Endocrinology 2018; 159:3048-3060. [PMID: 29982393 PMCID: PMC6456982 DOI: 10.1210/en.2018-00443] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/02/2018] [Indexed: 11/19/2022]
Abstract
Despite the well-established concept that an increase in pulsatile GnRH release triggers puberty, the precise signaling mechanism responsible for the pubertal increase in GnRH release remains unclear. A recent study indicates that developmental changes in the network formation between kisspeptin and neurokinin B (NKB) signaling greatly contribute to the pubertal increase in GnRH release in female monkeys. It is, however, unknown whether similar developmental changes in the kisspeptin and NKB network are involved in male puberty. In the current study, we first characterized the pubertal stages in male rhesus monkeys by assessing physiological and hormonal changes during sexual development. Subsequently, we examined the role of the kisspeptin and NKB signaling network in the pubertal increase in GnRH release. Results suggest that while collaborative kisspeptin and NKB signaling to GnRH neurons was active before puberty onset, after initiation of puberty the role of NKB signaling in GnRH neurons diminished and kisspeptin signaling assumed the primary stimulatory role in the regulation of GnRH release in male monkeys. These findings in males differ from those seen in females.
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Affiliation(s)
- James P Garcia
- Wisconsin National Primate Research Center, University of Wisconsin–Madison, Madison, Wisconsin
| | - Kim L Keen
- Wisconsin National Primate Research Center, University of Wisconsin–Madison, Madison, Wisconsin
| | - Brian P Kenealy
- Wisconsin National Primate Research Center, University of Wisconsin–Madison, Madison, Wisconsin
| | - Stephanie B Seminara
- Reproductive Endocrine Unit, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Reproductive Sciences Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Ei Terasawa
- Wisconsin National Primate Research Center, University of Wisconsin–Madison, Madison, Wisconsin
- Department of Pediatrics, University of Wisconsin–Madison, Madison, Wisconsin
- Correspondence: Ei Terasawa, PhD, Wisconsin National Primate Research Center, University of Wisconsin, 1223 Capitol Court, Madison, Wisconsin 53715. E-mail:
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37
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Abstract
Puberty involves a series of morphological, physiological and behavioural changes during the last part of the juvenile period that culminates in the attainment of fertility. The activation of the pituitary-gonadal axis by increased hypothalamic secretion of gonadotrophin-releasing hormone (GnRH) is an essential step in the process. The current hypothesis postulates that a loss of transsynaptic inhibition and a rise in excitatory inputs are responsible for the activation of GnRH release. Similarly, a shift in the balance in the expression of puberty activating and puberty inhibitory genes exists during the pubertal transition. In addition, recent evidence suggests that the epigenetic machinery controls this genetic balance, giving rise to the tantalising possibility that epigenetics serves as a relay of environmental signals known for many years to modulate pubertal development. Here, we review the contribution of epigenetics as a regulatory mechanism in the hypothalamic control of female puberty.
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Affiliation(s)
- C A Toro
- Primate Genetics Section/Division of Neuroscience, Oregon National Primate Research Center/Oregon Health & Science University, Beaverton, OR, USA
| | - C F Aylwin
- Primate Genetics Section/Division of Neuroscience, Oregon National Primate Research Center/Oregon Health & Science University, Beaverton, OR, USA
| | - A Lomniczi
- Primate Genetics Section/Division of Neuroscience, Oregon National Primate Research Center/Oregon Health & Science University, Beaverton, OR, USA
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38
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Horikoshi M, Day FR, Akiyama M, Hirata M, Kamatani Y, Matsuda K, Ishigaki K, Kanai M, Wright H, Toro CA, Ojeda SR, Lomniczi A, Kubo M, Ong KK, Perry JRB. Elucidating the genetic architecture of reproductive ageing in the Japanese population. Nat Commun 2018; 9:1977. [PMID: 29773799 PMCID: PMC5958096 DOI: 10.1038/s41467-018-04398-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 04/27/2018] [Indexed: 01/06/2023] Open
Abstract
Population studies elucidating the genetic architecture of reproductive ageing have been largely limited to European ancestries, restricting the generalizability of the findings and overlooking possible key genes poorly captured by common European genetic variation. Here, we report 26 loci (all P < 5 × 10–8) for reproductive ageing, i.e. puberty timing or age at menopause, in a non-European population (up to 67,029 women of Japanese ancestry). Highlighted genes for menopause include GNRH1, which supports a primary, rather than passive, role for hypothalamic-pituitary GnRH signalling in the timing of menopause. For puberty timing, we demonstrate an aetiological role for receptor-like protein tyrosine phosphatases by combining evidence across population genetics and pre- and peri-pubertal changes in hypothalamic gene expression in rodent and primate models. Furthermore, our findings demonstrate widespread differences in allele frequencies and effect estimates between Japanese and European associated variants, highlighting the benefits and challenges of large-scale trans-ethnic approaches. The timing of female reproductive capacity is influenced by genetic and environmental factors. Here, in genome-wide association studies, the authors identify genetic loci for age at menarche and onset of menopause in Japanese women, and highlight differences with European populations.
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Affiliation(s)
- Momoko Horikoshi
- Laboratory for Endocrinology, Metabolism and Kidney Diseases, RIKEN Centre for Integrative Medical Sciences, Yokohama, 230-0045, Japan.
| | - Felix R Day
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK
| | - Masato Akiyama
- Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Makoto Hirata
- Laboratory of Genome Technology, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Yoichiro Kamatani
- Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan.,Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, 606-8507, Japan
| | - Koichi Matsuda
- Laboratory of Genome Technology, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Kazuyoshi Ishigaki
- Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Masahiro Kanai
- Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan.,Department of Biomedical Informatics, Harvard Medical School, Boston, MA, 02115, USA
| | - Hollis Wright
- Primate Genetics Section/Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Sciences University, Beaverton, OR, 97006, USA
| | - Carlos A Toro
- Primate Genetics Section/Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Sciences University, Beaverton, OR, 97006, USA
| | - Sergio R Ojeda
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Sciences University, Beaverton, OR, 97006, USA
| | - Alejandro Lomniczi
- Primate Genetics Section/Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Sciences University, Beaverton, OR, 97006, USA
| | - Michiaki Kubo
- RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Ken K Ong
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK
| | - John R B Perry
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK.
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Avendaño MS, Vazquez MJ, Tena-Sempere M. Disentangling puberty: novel neuroendocrine pathways and mechanisms for the control of mammalian puberty. Hum Reprod Update 2018; 23:737-763. [PMID: 28961976 DOI: 10.1093/humupd/dmx025] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 08/01/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Puberty is a complex developmental event, controlled by sophisticated regulatory networks that integrate peripheral and internal cues and impinge at the brain centers driving the reproductive axis. The tempo of puberty is genetically determined but is also sensitive to numerous modifiers, from metabolic and sex steroid signals to environmental factors. Recent epidemiological evidence suggests that the onset of puberty is advancing in humans, through as yet unknown mechanisms. In fact, while much knowledge has been gleaned recently on the mechanisms responsible for the control of mammalian puberty, fundamental questions regarding the intimate molecular and neuroendocrine pathways responsible for the precise timing of puberty and its deviations remain unsolved. OBJECTIVE AND RATIONALE By combining data from suitable model species and humans, we aim to provide a comprehensive summary of our current understanding of the neuroendocrine mechanisms governing puberty, with particular focus on its central regulatory pathways, underlying molecular basis and mechanisms for metabolic control. SEARCH METHODS A comprehensive MEDLINE search of articles published mostly from 2003 to 2017 has been carried out. Data from cellular and animal models (including our own results) as well as clinical studies focusing on the pathophysiology of puberty in mammals were considered and cross-referenced with terms related with central neuroendocrine mechanisms, metabolic control and epigenetic/miRNA regulation. OUTCOMES Studies conducted during the last decade have revealed the essential role of novel central neuroendocrine pathways in the control of puberty, with a prominent role of kisspeptins in the precise regulation of the pubertal activation of GnRH neurosecretory activity. In addition, different transmitters, including neurokinin-B (NKB) and, possibly, melanocortins, have been shown to interplay with kisspeptins in tuning puberty onset. Alike, recent studies have documented the role of epigenetic mechanisms, involving mainly modulation of repressors that target kisspeptins and NKB pathways, as well as microRNAs and the related binding protein, Lin28B, in the central control of puberty. These novel pathways provide the molecular and neuroendocrine basis for the modulation of puberty by different endogenous and environmental cues, including nutritional and metabolic factors, such as leptin, ghrelin and insulin, which are known to play an important role in pubertal timing. WIDER IMPLICATIONS Despite recent advancements, our understanding of the basis of mammalian puberty remains incomplete. Complete elucidation of the novel neuropeptidergic and molecular mechanisms summarized in this review will not only expand our knowledge of the intimate mechanisms responsible for puberty onset in humans, but might also provide new tools and targets for better prevention and management of pubertal deviations in the clinical setting.
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Affiliation(s)
- M S Avendaño
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain.,Department of Cell Biology, Physiology and Immunology, Faculty of Medicine, University of Córdoba, Avda. Menéndez Pidal s/n. 14004 Córdoba, Spain.,Hospital Universitario Reina Sofia, Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain
| | - M J Vazquez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain.,Department of Cell Biology, Physiology and Immunology, Faculty of Medicine, University of Córdoba, Avda. Menéndez Pidal s/n. 14004 Córdoba, Spain.,Hospital Universitario Reina Sofia, Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain
| | - M Tena-Sempere
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain.,Department of Cell Biology, Physiology and Immunology, Faculty of Medicine, University of Córdoba, Avda. Menéndez Pidal s/n. 14004 Córdoba, Spain.,Hospital Universitario Reina Sofia, Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Avda. Menéndez Pidal, s/n, 14004 Córdoba, Spain.,FiDiPro Program, Department of Physiology, University of Turku, Kiinamyllynkatu 10, FIN-20520 Turku, Finland
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40
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Nguyen LT, Reverter A, Cánovas A, Venus B, Anderson ST, Islas-Trejo A, Dias MM, Crawford NF, Lehnert SA, Medrano JF, Thomas MG, Moore SS, Fortes MRS. STAT6, PBX2, and PBRM1 Emerge as Predicted Regulators of 452 Differentially Expressed Genes Associated With Puberty in Brahman Heifers. Front Genet 2018; 9:87. [PMID: 29616079 PMCID: PMC5869259 DOI: 10.3389/fgene.2018.00087] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 03/02/2018] [Indexed: 12/17/2022] Open
Abstract
The liver plays a central role in metabolism and produces important hormones. Hepatic estrogen receptors and the release of insulin-like growth factor 1 (IGF1) are critical links between liver function and the reproductive system. However, the role of liver in pubertal development is not fully understood. To explore this question, we applied transcriptomic analyses to liver samples of pre- and post-pubertal Brahman heifers and identified differentially expressed (DE) genes and genes encoding transcription factors (TFs). Differential expression of genes suggests potential biological mechanisms and pathways linking liver function to puberty. The analyses identified 452 DE genes and 82 TF with significant contribution to differential gene expression by using a regulatory impact factor metric. Brain-derived neurotrophic factor was observed as the most down-regulated gene (P = 0.003) in post-pubertal heifers and we propose this gene influences pubertal development in Brahman heifers. Additionally, co-expression network analysis provided evidence for three TF as key regulators of liver function during pubertal development: the signal transducer and activator of transcription 6, PBX homeobox 2, and polybromo 1. Pathway enrichment analysis identified transforming growth factor-beta and Wnt signaling pathways as significant annotation terms for the list of DE genes and TF in the co-expression network. Molecular information regarding genes and pathways described in this work are important to further our understanding of puberty onset in Brahman heifers.
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Affiliation(s)
- Loan T Nguyen
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia.,Faculty of Biotechnology, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Antonio Reverter
- CSIRO Agriculture and Food, Queensland Bioscience Precinct, St. Lucia, QLD, Australia
| | - Angela Cánovas
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Bronwyn Venus
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
| | - Stephen T Anderson
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - Alma Islas-Trejo
- Department of Animal Science, University of California, Davis, Davis, CA, United States
| | - Marina M Dias
- Departamento de Zootecnia, Faculdade de Ciências Agráìrias e Veterináìrias, Universidade Estadual Paulista Júlio de Mesquita Filho, São Paulo, Brazil
| | - Natalie F Crawford
- Department of Animal Science, Colorado State University, Fort Collins, CO, United States
| | - Sigrid A Lehnert
- CSIRO Agriculture and Food, Queensland Bioscience Precinct, St. Lucia, QLD, Australia
| | - Juan F Medrano
- Department of Animal Science, University of California, Davis, Davis, CA, United States
| | - Milt G Thomas
- Department of Animal Science, Colorado State University, Fort Collins, CO, United States
| | - Stephen S Moore
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
| | - Marina R S Fortes
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia.,Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
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41
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Maulik U, Sen S, Mallik S, Bandyopadhyay S. Detecting TF-miRNA-gene network based modules for 5hmC and 5mC brain samples: a intra- and inter-species case-study between human and rhesus. BMC Genet 2018; 19:9. [PMID: 29357837 PMCID: PMC5776763 DOI: 10.1186/s12863-017-0574-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 11/29/2017] [Indexed: 01/09/2023] Open
Abstract
Background Study of epigenetics is currently a high-impact research topic. Multi stage methylation is also an area of high-dimensional prospect. In this article, we provide a new study (intra and inter-species study) on brain tissue between human and rhesus on two methylation cytosine variants based data-profiles (viz., 5-hydroxymethylcytosine (5hmC) and 5-methylcytosine (5mC) samples) through TF-miRNA-gene network based module detection. Results First of all, we determine differentially 5hmC methylated genes for human as well as rhesus for intra-species analysis, and differentially multi-stage methylated genes for inter-species analysis. Thereafter, we utilize weighted topological overlap matrix (TOM) measure and average linkage clustering consecutively on these genesets for intra- and inter-species study.We identify co-methylated and multi-stage co-methylated gene modules by using dynamic tree cut, for intra-and inter-species cases, respectively. Each module is represented by individual color in the dendrogram. Gene Ontology and KEGG pathway based analysis are then performed to identify biological functionalities of the identified modules. Finally, top ten regulator TFs and targeter miRNAs that are associated with the maximum number of gene modules, are determined for both intra-and inter-species analysis. Conclusions The novel TFs and miRNAs obtained from the analysis are: MYST3 and ZNF771 as TFs (for human intra-species analysis), BAZ2B, RCOR3 and ATF1 as TFs (for rhesus intra-species analysis), and mml-miR-768-3p and mml-miR-561 as miRs (for rhesus intra-species analysis); and MYST3 and ZNF771 as miRs(for inter-species study). Furthermore, the genes/TFs/miRNAs that are already found to be liable for several brain-related dreadful diseases as well as rare neglected diseases (e.g., wolf Hirschhorn syndrome, Joubarts Syndrome, Huntington’s disease, Simian Immunodeficiency Virus(SIV) mediated enchaphilits, Parkinsons Disease, Bipolar disorder and Schizophenia etc.) are mentioned. Electronic supplementary material The online version of this article (doi:10.1186/s12863-017-0574-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ujjwal Maulik
- Department of Computer Science and Engineering, Jadavpur University, Kolkata, 700032, India.
| | - Sagnik Sen
- Department of Computer Science and Engineering, Jadavpur University, Kolkata, 700032, India
| | - Saurav Mallik
- Department of Computer Science and Engineering, Jadavpur University, Kolkata, 700032, India
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Terasawa E, Garcia JP, Seminara SB, Keen KL. Role of Kisspeptin and Neurokinin B in Puberty in Female Non-Human Primates. Front Endocrinol (Lausanne) 2018; 9:148. [PMID: 29681889 PMCID: PMC5897421 DOI: 10.3389/fendo.2018.00148] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 03/20/2018] [Indexed: 11/25/2022] Open
Abstract
In human patients, loss-of-function mutations in the genes encoding kisspeptin (KISS1) and neurokinin B (NKB) and their receptors (KISS1R and NK3R, respectively) result in an abnormal timing of puberty or the absence of puberty. To understand the neuroendocrine mechanism of puberty, we investigated the contribution of kisspeptin and NKB signaling to the pubertal increase in GnRH release using rhesus monkeys as a model. Direct measurements of GnRH and kisspeptin in the median eminence of the hypothalamus with infusion of agonists and antagonists for kisspeptin and NKB reveal that kisspeptin and NKB signaling stimulate GnRH release independently or collaboratively by forming kisspeptin and NKB neuronal networks depending on the developmental age. For example, while in prepubertal females, kisspeptin and NKB signaling independently stimulate GnRH release, in pubertal females, the formation of a collaborative kisspeptin and NKB network further accelerates the pubertal increase in GnRH release. It is speculated that the collaborative mechanism between kisspeptin and NKB signaling to GnRH neurons is necessary for the complex reproductive function in females.
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Affiliation(s)
- Ei Terasawa
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI, United States
- Department of Pediatrics, University of Wisconsin, Madison, WI, United States
- *Correspondence: Ei Terasawa,
| | - James P. Garcia
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI, United States
| | - Stephanie B. Seminara
- Reproductive Endocrine Unit and the Harvard Reproductive Sciences Center, Department of Medicine, Massachusetts General Hospital, Boston, MA, United States
| | - Kim L. Keen
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI, United States
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Garcia JP, Guerriero KA, Keen KL, Kenealy BP, Seminara SB, Terasawa E. Kisspeptin and Neurokinin B Signaling Network Underlies the Pubertal Increase in GnRH Release in Female Rhesus Monkeys. Endocrinology 2017; 158:3269-3280. [PMID: 28977601 PMCID: PMC5659687 DOI: 10.1210/en.2017-00500] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/20/2017] [Indexed: 11/19/2022]
Abstract
Loss-of-function or inactivating mutations in the genes coding for kisspeptin and its receptor (KISS1R) or neurokinin B (NKB) and the NKB receptor (NK3R) in humans result in a delay in or the absence of puberty. However, precise mechanisms of kisspeptin and NKB signaling in the regulation of the pubertal increase in gonadotropin-releasing hormone (GnRH) release in primates are unknown. In this study, we conducted a series of experiments infusing agonists and antagonists of kisspeptin and NKB into the stalk-median eminence, where GnRH, kisspeptin, and NKB neuroterminal fibers are concentrated, and measuring GnRH release in prepubertal and pubertal female rhesus monkeys. Results indicate that (1) similar to those previously reported for GnRH stimulation by the KISS1R agonist (i.e., human kisspeptin-10), the NK3R agonist senktide stimulated GnRH release in a dose-responsive manner in both prepubertal and pubertal monkeys; (2) the senktide-induced GnRH release was blocked in the presence of the KISS1R antagonist peptide 234 in pubertal but not prepubertal monkeys; and (3) the kisspeptin-induced GnRH release was blocked in the presence of the NK3R antagonist SB222200 in the pubertal but not prepubertal monkeys. These results are interpreted to mean that although, in prepubertal female monkeys, kisspeptin and NKB signaling to GnRH release is independent, in pubertal female monkeys, a reciprocal signaling mechanism between kisspeptin and NKB neurons is established. We speculate that this cooperative mechanism by the kisspeptin and NKB network underlies the pubertal increase in GnRH release in female monkeys.
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Affiliation(s)
- James P. Garcia
- Wisconsin National Primate Research Center, Madison, Wisconsin 53715
| | | | - Kim L. Keen
- Wisconsin National Primate Research Center, Madison, Wisconsin 53715
| | - Brian P. Kenealy
- Wisconsin National Primate Research Center, Madison, Wisconsin 53715
| | - Stephanie B. Seminara
- Reproductive Endocrine Unit and the Harvard Reproductive Sciences Center, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114
| | - Ei Terasawa
- Wisconsin National Primate Research Center, Madison, Wisconsin 53715
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin 53706
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Nguyen LT, Reverter A, Cánovas A, Venus B, Islas-Trejo A, Porto-Neto LR, Lehnert SA, Medrano JF, Moore SS, Fortes MRS. Global differential gene expression in the pituitary gland and the ovaries of pre- and postpubertal Brahman heifers. J Anim Sci 2017; 95:599-615. [PMID: 28380590 DOI: 10.2527/jas.2016.0921] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
To understand genes, pathways, and networks related to puberty, we characterized the transcriptome of two tissues: the pituitary gland and ovaries. Samples were harvested from pre- and postpubertal Brahman heifers (same age group). Brahman heifers () are older at puberty compared with , a productivity issue. With RNA sequencing, we identified differentially expressed (DEx) genes and important transcription factors (TF) and predicted coexpression networks. The number of DEx genes detected in the pituitary gland was 284 ( < 0.05), and was the most DEx gene (fold change = 4.12, = 0.01). The gene promotes bone mineralization through transforming growth factor-β (TGFβ) signaling. Further studies of the link between bone mineralization and puberty could target . In ovaries, 3,871 genes were DEx ( < 0.05). Four highly DEx genes were noteworthy for their function: (a γ-aminobutyric acid [GABA] transporter), (), and () and its receptor . These genes had higher ovarian expression in postpubertal heifers. The GABA and its receptors and transporters were expressed in the ovaries of many mammals, suggesting a role for this pathway beyond the brain. The pathway has been known to influence the timing of puberty in rats, via modulation of GnRH. The effects of at the hypothalamus, pituitary gland, and ovaries have been documented. and its receptors are known factors in the release of GnRH, similar to and GABA, although their roles in ovarian tissue are less clear. Pathways previously related to puberty such as TGFβ signaling ( = 6.71 × 10), Wnt signaling ( = 4.1 × 10), and peroxisome proliferator-activated receptor (PPAR) signaling ( = 4.84 × 10) were enriched in our data set. Seven genes were identified as key TF in both tissues: , , , , , , and a novel gene. An ovarian subnetwork created with TF and significant ovarian DEx genes revealed five zinc fingers as regulators: , , , , and . Recent work of hypothalamic gene expression also pointed to zinc fingers as TF for bovine puberty. Although some zinc fingers may be ubiquitously expressed, the identification of DEx genes in common across tissues points to key regulators of puberty. The hypothalamus and pituitary gland had eight DEx genes in common. The hypothalamus and ovaries had 89 DEx genes in common. The pituitary gland and ovaries had 48 DEx genes in common. Our study confirmed the complexity of puberty and suggested further investigation on genes that code zinc fingers.
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45
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Messina A, Langlet F, Prevot V. [MicroRNAs: new players in the hypothalamic control of fertility]. Med Sci (Paris) 2017; 33:506-511. [PMID: 28612726 DOI: 10.1051/medsci/20173305014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
MicroRNAs are small non-coding RNAs that modulate gene expression post-transcriptionally. Discovered more than 15 years ago, their functions start to be unraveled. Increasing evidence points to an important functional role of microRNAs in brain development. In particular, miRNAs have recently been established to play a vital role in the mechanisms underlying the infantile rise in gonadotropin-releasing hormone (GnRH) production by neurons in the hypothalamus, a phenomenon necessary for the onset of puberty in mammals.
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Affiliation(s)
- Andrea Messina
- Service d'Endocrinologie, Diabétologie et Métabolisme, Hôpital universitaire de Lausanne, Lausanne, Suisse
| | - Fanny Langlet
- Columbia University Medical Center and Berrie Diabetes Center, New York, États-Unis
| | - Vincent Prevot
- Laboratoire de Développement et de Plasticité du Cerveau Neuroendocrine, FHU 1000 days for health, Inserm U1172, Université de Lille, Lille, France
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Fortes MRS, Nguyen LT, Weller MMDCA, Cánovas A, Islas-Trejo A, Porto-Neto LR, Reverter A, Lehnert SA, Boe-Hansen GB, Thomas MG, Medrano JF, Moore SS. Transcriptome analyses identify five transcription factors differentially expressed in the hypothalamus of post- versus prepubertal Brahman heifers. J Anim Sci 2017; 94:3693-3702. [PMID: 27898892 DOI: 10.2527/jas.2016-0471] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Puberty onset is a developmental process influenced by genetic determinants, environment, and nutrition. Mutations and regulatory gene networks constitute the molecular basis for the genetic determinants of puberty onset. The emerging knowledge of these genetic determinants presents opportunities for innovation in the breeding of early pubertal cattle. This paper presents new data on hypothalamic gene expression related to puberty in (Brahman) in age- and weight-matched heifers. Six postpubertal heifers were compared with 6 prepubertal heifers using whole-genome RNA sequencing methodology for quantification of global gene expression in the hypothalamus. Five transcription factors (TF) with potential regulatory roles in the hypothalamus were identified in this experiment: , , , , and . These TF genes were significantly differentially expressed in the hypothalamus of postpubertal versus prepubertal heifers and were also identified as significant according to the applied regulatory impact factor metric ( < 0.05). Two of these 5 TF, and , were zinc fingers, belonging to a gene family previously reported to have a central regulatory role in mammalian puberty. The gene belongs to the family of homologues of Drosophila sine oculis () genes implicated in transcriptional regulation of gonadotrope gene expression. Tumor-related genes such as and are known to affect basic cellular processes that are relevant in both cancer and developmental processes. Mutations in were associated with puberty in humans. Mutations in these TF, together with other genetic determinants previously discovered, could be used in genomic selection to predict the genetic merit of cattle (i.e., the likelihood of the offspring presenting earlier than average puberty for Brahman). Knowledge of key mutations involved in genetic traits is an advantage for genomic prediction because it can increase its accuracy.
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47
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Chung WW, Hudziak JJ. The Transitional Age Brain: "The Best of Times and the Worst of Times". Child Adolesc Psychiatr Clin N Am 2017; 26:157-175. [PMID: 28314448 DOI: 10.1016/j.chc.2016.12.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Over the past two decades, there have been substantial developments in the understanding of brain development and the importance of environmental inputs and context. This paper focuses on the neurodevelopmental mismatch that occurs during the epoch we term the 'transitional age brain' (ages 13-25) and the collateral behavioral correlates. We summarize research findings supporting the argument that, because of this neurodevelopmental mismatch, transitional age youth are at high risk for engaging in behaviors that lead to negative outcomes, morbidity, and mortality. We highlight the need to develop new, neuroscience-inspired health promotion and illness prevention approaches for transitional age youth.
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Affiliation(s)
- Winston W Chung
- Vermont Center for Children, Youth, and Family, University of Vermont Medical Center, 1 South Prospect Street, Arnold 3, Burlington, Vermont 05401, USA
| | - James J Hudziak
- University of Vermont College of Medicine and Medical Center, 1 South Prospect Street, Arnold 3, Burlington, Vermont 05401, USA.
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48
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Gao X, Ye J, Yang C, Zhang K, Li X, Luo L, Ding J, Li Y, Cao H, Ling Y, Zhang X, Liu Y, Fang F, Zhang Y. Screening and evaluating of long noncoding RNAs in the puberty of goats. BMC Genomics 2017; 18:164. [PMID: 28196477 PMCID: PMC5310007 DOI: 10.1186/s12864-017-3578-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 02/09/2017] [Indexed: 12/20/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) are involved in regulating animal development, however, their function in the onset of puberty in goats remain largely unexplored. To identify the genes controlling the regulation of puberty in goats, we measured lncRNA and mRNA expression levels from the hypothalamus. Results We applied RNA sequencing analysis to examine the hypothalamus of pubertal (case; n = 3) and prepubertal (control; n = 3) goats. Our results showed 2943 predicted lncRNAs, including 2012 differentially expressed lncRNAs, which corresponded to 5412 target genes. We also investigated the role of lncRNAs that act cis and trans to the target genes and found a number of lncRNAs involved in the regulation of puberty and reproduction, as well as several pathways related to these processes. For example, oxytocin signaling pathway, sterol biosynthetic process, and pheromone receptor activity signaling pathway were enriched as Kyoto Encyclopedia of Genes and Genomes (KEGG) or gene ontology (GO) analyses showed. Conclusion Our results clearly demonstrate that lncRNAs play an important role in regulating puberty in goats. However, further research is needed to explore the functions of lncRNAs and their predicted targets to provide a detailed expression profile of lncRNAs on goat puberty. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3578-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoxiao Gao
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Jing Ye
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Chen Yang
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Kaifa Zhang
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Xiumei Li
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Lei Luo
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Jianping Ding
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Yunsheng Li
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Hongguo Cao
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Yinghui Ling
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Xiaorong Zhang
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Ya Liu
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China.,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China
| | - Fugui Fang
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China. .,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China. .,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.
| | - Yunhai Zhang
- Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China. .,Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, 130 Changjiang West Road, Hefei, Anhui, 230036, China. .,Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui, 230036, China.
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Hodes GE, Walker DM, Labonté B, Nestler EJ, Russo SJ. Understanding the epigenetic basis of sex differences in depression. J Neurosci Res 2017; 95:692-702. [PMID: 27870456 PMCID: PMC5130105 DOI: 10.1002/jnr.23876] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 12/27/2022]
Abstract
Epigenetics refers to potentially heritable processes that can mediate both lasting and transient changes in gene expression in the absence of genome sequence alterations. The field of epigenetics has introduced a novel understanding of the mechanisms through which the environment can shape an individual and potentially its offspring. This Mini-Review examines the current literature exploring the role of epigenetics in the development of mood disorders such as depression. Depression is twofold more common in females, yet the majority of preclinical research has been conducted exclusively in male subjects. Here we discuss what is known about sex differences in epigenetic regulation and function and how this may contribute to the etiology and onset of mood disorders. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Georgia E. Hodes
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Deena M. Walker
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Benoit Labonté
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Eric J. Nestler
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Scott J. Russo
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
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50
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Neuroendokrine Regulation der Pubertät und ihre Störungen. GYNAKOLOGISCHE ENDOKRINOLOGIE 2016. [DOI: 10.1007/s10304-016-0091-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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