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Hamada H, Casciaro C, Moisiadis VG, Constantinof A, Kostaki A, Matthews SG. Prenatal maternal glucocorticoid exposure modifies sperm miRNA profiles across multiple generations in the guinea-pig. J Physiol 2024; 602:2127-2139. [PMID: 38285002 DOI: 10.1113/jp284942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/11/2024] [Indexed: 01/30/2024] Open
Abstract
Maternal stress and glucocorticoid exposure during pregnancy have multigenerational effects on neuroendocrine function and behaviours in offspring. Importantly, effects are transmitted through the paternal lineage. Altered phenotypes are associated with profound differences in transcription and DNA methylation in the brain. In the present study, we hypothesized that maternal prenatal synthetic glucocorticoid (sGC) exposure in the F0 pregnancy will result in differences in miRNA levels in testes germ cells and sperm across multiple generations, and that these changes will associate with modified microRNA (miRNA) profiles and gene expression in the prefrontal cortex (PFC) of subsequent generations. Pregnant guinea-pigs (F0) were treated with multiple courses of the sGC betamethasone (Beta) (1 mg kg-1; gestational days 40, 41, 50, 51, 60 and 61) in late gestation. miRNA levels were assessed in testes germ cells and in F2 PFC using the GeneChip miRNA 4.0 Array and candidate miRNA measured in epididymal sperm by quantitative real-time PCR. Maternal Beta exposure did not alter miRNA levels in germ cells derived from the testes of adult male offspring. However, there were significant differences in the levels of four candidate miRNAs in the sperm of F1 and F2 adult males. There were no changes in miRNA levels in the PFC of juvenile F2 female offspring. The present study has identified that maternal Beta exposure leads to altered miRNA levels in sperm that are apparent for at least two generations. The fact that differences were confined to epididymal sperm suggests that the intergenerational effects of Beta may target the epididymis. KEY POINTS: Paternal glucocorticoid exposure prior to conception leads to profound epigenetic changes in the brain and somatic tissues in offspring, and microRNAs (miRNAs) in sperm may mediate these changes. We show that there were significant differences in the miRNA profile of epididymal sperm in two generations following prenatal glucocorticoid exposure that were not observed in germ cells derived from the testes. The epididymis is a probable target for intergenerational programming. The effects of prenatal glucocorticoid treatment may span multiple generations.
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Affiliation(s)
- Hirotaka Hamada
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, ON, Canada
- Department of Gynecology and Obstetrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Christopher Casciaro
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, ON, Canada
| | - Vasilis G Moisiadis
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, ON, Canada
| | - Andrea Constantinof
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, ON, Canada
| | - Alisa Kostaki
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, ON, Canada
| | - Stephen G Matthews
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, ON, Canada
- Lunenfeld-Tanenbaum Research Institute, Sinai Health Systems, Toronto, ON, Canada
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Dósa Z, Nieto-Gonzalez JL, Elfving B, Hougaard KS, Holm MM, Wegener G, Jensen K. Reduction in hippocampal GABAergic transmission in a low birth weight rat model of depression. Acta Neuropsychiatr 2023; 35:315-327. [PMID: 36896595 DOI: 10.1017/neu.2023.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Prenatal stress is believed to increase the risk of developing neuropsychiatric disorders, including major depression. Adverse genetic and environmental impacts during early development, such as glucocorticoid hyper-exposure, can lead to changes in the foetal brain, linked to mental illnesses developed in later life. Dysfunction in the GABAergic inhibitory system is associated with depressive disorders. However, the pathophysiology of GABAergic signalling is poorly understood in mood disorders. Here, we investigated GABAergic neurotransmission in the low birth weight (LBW) rat model of depression. Pregnant rats, exposed to dexamethasone, a synthetic glucocorticoid, during the last week of gestation, yielded LBW offspring showing anxiety- and depressive-like behaviour in adulthood. Patch-clamp recordings from dentate gyrus granule cells in brain slices were used to examine phasic and tonic GABAA receptor-mediated currents. The transcriptional levels of selected genes associated with synaptic vesicle proteins and GABAergic neurotransmission were investigated. The frequency of spontaneous inhibitory postsynaptic currents (sIPSC) was similar in control and LBW rats. Using a paired-pulse protocol to stimulate GABAergic fibres impinging onto granule cells, we found indications of decreased probability of GABA release in LBW rats. However, tonic GABAergic currents and miniature IPSCs, reflecting quantal vesicle release, appeared normal. Additionally, we found elevated expression levels of two presynaptic proteins, Snap-25 and Scamp2, components of the vesicle release machinery. The results suggest that altered GABA release may be an essential feature in the depressive-like phenotype of LBW rats.
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Affiliation(s)
- Zita Dósa
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Betina Elfving
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Karin Sørig Hougaard
- National Research Centre for the Working Environment, Copenhagen, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Mai Marie Holm
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Gregers Wegener
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Pharmaceutical Research Center of Excellence, North-West University, Potchefstroom, South Africa
| | - Kimmo Jensen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Neurology, Aalborg University Hospital, Aalborg, Denmark
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Lorenzon F, Gregorio T, Niebisch F, Stolte RCK, Peixe CDMS, Reis WL, Dos Santos GJ, Lima FB. Gestational administration of vitamin D improves maternal care and prevents anxiety-like behavior in male and female Wistar rats prenatally exposed to dexamethasone. Life Sci 2023:121799. [PMID: 37245838 DOI: 10.1016/j.lfs.2023.121799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/15/2023] [Accepted: 05/20/2023] [Indexed: 05/30/2023]
Abstract
Prenatal overexposure to glucocorticoids (GC) can lead to behavioral changes in adulthood. We aimed to explore the effects of gestational administration of vitamin D on the behavioral responses of dams and their offspring prenatally exposed to dexamethasone (DEX). Vitamin D (500UI) was given daily during the whole pregnancy (VD group). Half of the groups that received vitamin D were treated with DEX (0.1 mg/kg, VD + DEX group) daily between the 14th and 19th days of pregnancy. The corresponding control groups of progenitors were assigned (CTL and DEX groups, respectively). Maternal care and the dam's behaviors were evaluated during lactation. The offspring had developmental and behavioral parameters evaluated during lactation and at 3, 6, and 12 months of age. Gestational administration of vitamin D increased maternal care and had an anxiolytic-like effect on the dams, but the latter was blocked in DEX-treated dams. Prenatal DEX partially impaired neural development and caused an anxiety-like phenotype in the male and female offspring at 6 months, which was prevented by gestational administration of vitamin D. As well, gestational vitamin D improved memory just in the male offspring, but this response was suppressed by prenatal DEX. We concluded that gestational vitamin D could prevent anxiety-like behavior in adult male and female rats prenatally exposed to DEX, which might be, in part, a result of the maternal care improvement.
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Affiliation(s)
- Flaviano Lorenzon
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Tamires Gregorio
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Fernanda Niebisch
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Rafaela Carla Kachel Stolte
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Carolina De Moraes Silveira Peixe
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Wagner Luis Reis
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Gustavo Jorge Dos Santos
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Fernanda Barbosa Lima
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, Campus Trindade, 88040-900 Florianópolis, SC, Brazil.
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Liu L, Zhang L, Li C, Qiu Z, Kuang T, Wu Z, Deng W. Effects of hormones on intestinal stem cells. Stem Cell Res Ther 2023; 14:105. [PMID: 37101229 PMCID: PMC10134583 DOI: 10.1186/s13287-023-03336-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 04/13/2023] [Indexed: 04/28/2023] Open
Abstract
The maintenance of intestinal renewal and repair mainly depends on intestinal stem cells (ISCs), which can also contribute to the growth of intestinal tumours. Hormones, which are vital signalling agents in the body, have various effects on the growth and replacement of intestinal stem cells. This review summarises recent progress in the identification of hormones associated with intestinal stem cells. Several hormones, including thyroid hormone, glucagon-like peptide-2, androgens, insulin, leptin, growth hormone, corticotropin-releasing hormone and progastrin, promote the development of intestinal stem cells. However, somatostatin and melatonin are two hormones that prevent the proliferation of intestinal stem cells. Therefore, new therapeutic targets for the diagnosis and treatment of intestinal illnesses can be identified by examining the impact of hormones on intestinal stem cells.
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Affiliation(s)
- Li Liu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Lilong Zhang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Chunlei Li
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhendong Qiu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Tianrui Kuang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhongkai Wu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Wenhong Deng
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
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Lu Z, Guo Y, Xu D, Xiao H, Dai Y, Liu K, Chen L, Wang H. Developmental toxicity and programming alterations of multiple organs in offspring induced by medication during pregnancy. Acta Pharm Sin B 2023; 13:460-477. [PMID: 36873163 PMCID: PMC9978644 DOI: 10.1016/j.apsb.2022.05.029] [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: 03/18/2022] [Revised: 05/05/2022] [Accepted: 05/25/2022] [Indexed: 11/29/2022] Open
Abstract
Medication during pregnancy is widespread, but there are few reports on its fetal safety. Recent studies suggest that medication during pregnancy can affect fetal morphological and functional development through multiple pathways, multiple organs, and multiple targets. Its mechanisms involve direct ways such as oxidative stress, epigenetic modification, and metabolic activation, and it may also be indirectly caused by placental dysfunction. Further studies have found that medication during pregnancy may also indirectly lead to multi-organ developmental programming, functional homeostasis changes, and susceptibility to related diseases in offspring by inducing fetal intrauterine exposure to too high or too low levels of maternal-derived glucocorticoids. The organ developmental toxicity and programming alterations caused by medication during pregnancy may also have gender differences and multi-generational genetic effects mediated by abnormal epigenetic modification. Combined with the latest research results of our laboratory, this paper reviews the latest research progress on the developmental toxicity and functional programming alterations of multiple organs in offspring induced by medication during pregnancy, which can provide a theoretical and experimental basis for rational medication during pregnancy and effective prevention and treatment of drug-related multiple fetal-originated diseases.
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Affiliation(s)
- Zhengjie Lu
- Department of Pharmacology, Wuhan University School of Basic Medical Science, Wuhan 430071, China.,Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Yu Guo
- Department of Pharmacology, Wuhan University School of Basic Medical Science, Wuhan 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disorder, Wuhan 430071, China
| | - Dan Xu
- Department of Pharmacology, Wuhan University School of Basic Medical Science, Wuhan 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disorder, Wuhan 430071, China
| | - Hao Xiao
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disorder, Wuhan 430071, China
| | - Yongguo Dai
- Department of Pharmacology, Wuhan University School of Basic Medical Science, Wuhan 430071, China
| | - Kexin Liu
- Department of Pharmacology, Wuhan University School of Basic Medical Science, Wuhan 430071, China
| | - Liaobin Chen
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disorder, Wuhan 430071, China
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Science, Wuhan 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disorder, Wuhan 430071, China
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Paoli C, Misztak P, Mazzini G, Musazzi L. DNA Methylation in Depression and Depressive-Like Phenotype: Biomarker or Target of Pharmacological Intervention? Curr Neuropharmacol 2022; 20:2267-2291. [PMID: 35105292 PMCID: PMC9890294 DOI: 10.2174/1570159x20666220201084536] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/18/2022] [Accepted: 01/26/2022] [Indexed: 12/29/2022] Open
Abstract
Major depressive disorder (MDD) is a debilitating psychiatric disorder, the third leading global cause of disability. Regarding aetiopathogenetic mechanisms involved in the onset of depressive disorders, the interaction between genetic vulnerability traits and environmental factors is believed to play a major role. Although much is still to be elucidated about the mechanisms through which the environment can interact with genetic background shaping the disease risk, there is a general agreement about a key role of epigenetic marking. In this narrative review, we focused on the association between changes in DNA methylation patterns and MDD or depressive-like phenotype in animal models, as well as mechanisms of response to antidepressant drugs. We discussed studies presenting DNA methylation changes at specific genes of interest and profiling analyses in both patients and animal models of depression. Overall, we collected evidence showing that DNA methylation could not only be considered as a promising epigenetic biomarker of pathology but could also help in predicting antidepressant treatment efficacy. Finally, we discussed the hypothesis that specific changes in DNA methylation signature could play a role in aetiopathogenetic processes as well as in the induction of antidepressant effect.
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Affiliation(s)
- Caterina Paoli
- Department of Medicine and Surgery, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
- School of Pharmacy, Pharmacy Unit, University of Camerino, 62032 Camerino, Italy
| | - Paulina Misztak
- Department of Medicine and Surgery, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Giulia Mazzini
- Department of Medicine and Surgery, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Laura Musazzi
- Department of Medicine and Surgery, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
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Gene Dysregulation in the Adult Rat Paraventricular Nucleus and Amygdala by Prenatal Exposure to Dexamethasone. LIFE (BASEL, SWITZERLAND) 2022; 12:life12071077. [PMID: 35888164 PMCID: PMC9316520 DOI: 10.3390/life12071077] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/24/2022] [Accepted: 07/15/2022] [Indexed: 12/02/2022]
Abstract
Fetal programming is the concept that maternal stressors during critical periods of fetal development can alter offspring phenotypes postnatally. Excess glucocorticoids can interact with the fetus to effect genetic and epigenetic changes implicated in adverse developmental outcomes. The present study investigates how chronic exposure to the synthetic glucocorticoid dexamethasone during late gestation alters the expression of genes related to behavior in brain areas relevant to the regulation and function of the hypothalamic–pituitary–adrenal axis. Pregnant Wistar Kyoto rats received subcutaneous injections of dexamethasone (100 μg/kg) daily from gestational day 15–21 or vehicle only as sham controls. The amygdala and paraventricular nucleus (PVN) were micro-punched to extract mRNA for reverse transcription and quantitative polymerase chain reaction for the analysis of the expression of specific genes. In the PVN, the expression of the glucocorticoid receptor NR3C1 was downregulated in female rats in response to programming. The expression of CACNA1C encoding the Cav1.2 pore subunit of L-type voltage-gated calcium channels was downregulated in male and female rats prenatally exposed to dexamethasone. Collectively, the results suggest that prenatal exposure to elevated levels of glucocorticoids plays a role in the dysregulation of the hypothalamic–pituitary–adrenal axis and potentially learning and memory by altering the expression of specific genes within the amygdala and PVN.
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Mu S, Lin Y, Xu Y, Wei X, Zeng Z, Lin K, Zhu L, Liu Q, Qi X, Wei L, Liang S, Wang S. A novel rat model for cerebral venous sinus thrombosis: verification of similarity to human disease via clinical analysis and experimental validation. J Transl Med 2022; 20:174. [PMID: 35410343 PMCID: PMC8996223 DOI: 10.1186/s12967-022-03374-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 04/01/2022] [Indexed: 11/10/2022] Open
Abstract
Background Cerebral venous sinus thrombosis (CVST) is a rare neurovascular disorder with highly variable manifestations and clinical courses. Animal models properly matched to the clinical form of CVST are necessary for elucidating the pathophysiology of the disease. In this study, we aimed to establish a rat model that accurately recapitulates the clinical features of CVST in human patients. Methods This study consisted of a clinical analysis and animal experiments. Clinical data for two centres obtained between January 2016 and May 2021 were collected and analysed retrospectively. In addition, a Sprague–Dawley rat model of CVST was established by inserting a water-swellable rubber device into the superior sagittal sinus, following which imaging, histological, haematological, and behavioural tests were used to investigate pathophysiological changes. Principal component analysis and hierarchical clustering heatmaps were used to evaluate the similarity between the animal models and human patients. Results The imaging results revealed the possibility of vasogenic oedema in animal models. Haematological analysis indicated an inflammatory and hypercoagulable state. These findings were mostly matched with the retrospective clinical data. Pathological and serological tests further revealed brain parenchymal damage related to CVST in animal models. Conclusions We successfully established a stable and reproducible rat model of CVST. The high similarity between clinical patients and animal models was verified via cluster analysis. This model may be useful for the study of CVST pathophysiology and potential therapies. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03374-y.
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Wang J, Chen F, Zhu S, Li X, Shi W, Dai Z, Hao L, Wang X. Adverse effects of prenatal dexamethasone exposure on fetal development. J Reprod Immunol 2022; 151:103619. [DOI: 10.1016/j.jri.2022.103619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 02/20/2022] [Accepted: 03/24/2022] [Indexed: 12/15/2022]
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Huang Y, Jin Y, Yao S, Nan G, Mao Y. LncRNA NEAT1 Inhibits Neuronal Apoptosis and Induces Neuronal Viability of Depressed Rats Via microRNA-320-3p/CRHR1 Axis. Neurochem Res 2022:10.1007/s11064-021-03508-6. [PMID: 35075548 DOI: 10.1007/s11064-021-03508-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 10/19/2022]
Abstract
Long noncoding RNA nuclear enriched abundant transcript 1 (NEAT1) has been reported to be involved in depression. This study aims to investigate the mechanism of NEAT1/microRNA (miR)-320-3p/Corticotropin-releasing hormone receptor 1 (CRHR1) axis in depressed rats. Rats with depression-like behaviors were prepared by exposing the rats to chronic unpredictable mild stress. Behavioral functions, pathological damage, neuronal apoptosis and monoamine neurotransmitter were examined in depressed rats . Primary hippocampal neurons were injured through simulation with corticosterone(CORT). Cell viability and apoptosis were measured in CORT-Induced hippocampal neurons. The binding relationship between NEAT1 and miR-320-3p and the targeting relationship between miR-320-3p and CRHR1 were detected. Elevated NEAT1, CRHR1 and reduced miR-320-3p exhibited in depressed rats and CORT-treated hippocampal neurons, NEAT1 bound to miR-320-3p to target CRHR1. Silencing NEAT1 or elevating miR-320-3p improved behavioral functions, attenuated pathological damage and apoptosis in the hippocampus, and increased monoamine neurotransmitter in depressed rats. Repression of NEAT1 or promotion of miR-320-3p enhanced viability and suppressed apoptosis of CORT-treated hippocampal neurons. The study highlights that NEAT1 competitively binds to miR-320-3p to up-regulate CRHR1 expression, thereby promoting hippocampal damage of depressed rats.
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Affiliation(s)
- Yujing Huang
- Department of Neurology, Associate Chief Physicia, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Yinshi Jin
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Shuai Yao
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Guangxian Nan
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Ying Mao
- Department of Neurology, China-Japan Union Hospital of Jilin University, Attending doctorNo. 126 Xiantai Street, Changchun, 130033, Jilin, China.
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Calibration and recalibration of stress response systems across development: Implications for mental and physical health. ADVANCES IN CHILD DEVELOPMENT AND BEHAVIOR 2022; 63:35-69. [DOI: 10.1016/bs.acdb.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Chen Y, Xu D, Xia X, Chen G, Xiao H, Chen L, Wang H. Sex difference in adrenal developmental toxicity induced by dexamethasone and its intrauterine programming mechanism. Pharmacol Res 2021; 174:105942. [PMID: 34656764 DOI: 10.1016/j.phrs.2021.105942] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 09/04/2021] [Accepted: 10/12/2021] [Indexed: 02/07/2023]
Abstract
Dexamethasone is widely used to treat preterm labor and related diseases. However, prenatal dexamethasone treatment (PDT) can cause multiorgan developmental toxicities in offspring. Our previous study found that the occurrence of fetal-originated diseases was associated with adrenal developmental programming alterations in offspring. Here, we investigated the effects of PDT on adrenal function in offspring and its intrauterine programming mechanism. A rat model of PDT was established to observe the alterations of adrenal steroidogenesis in offspring. Furthermore, we confirmed the sex differences of adrenal steroidogenesis and its molecular mechanism combined with in vivo and in vitro experiments. PDT caused a decrease in adrenal steroidogenic function in fetal rats, but it was decreased in males and increased in females after birth. Meanwhile, the adrenal H3K14ac level and expression of 11β-hydroxysteroid dehydrogenase 2 (11β-HSD2) in PDT offspring were decreased in males and increased in females, suggesting that 11β-HSD2 might mediate sex differences in adrenal function. We further confirmed that dexamethasone inhibited the H3K14ac level and expression of 11β-HSD2 through the GR/SP1/p300 pathway. After bilateral testectomy or ovariectomy of adult PDT offspring rats, adrenal 11β-HSD2 expression and steroidogenic function were both reduced. Using rat primary fetal adrenal cells, the differential expression of AR and ERβ was proven to be involved in regulating the sex difference in 11β-HSD2 expression. This study demonstrated the sex difference in adrenal steroidogenic function of PDT offspring after birth and elucidated a sex hormone receptor-dependent epigenetically regulating mechanism for adrenal 11β-HSD2 programming alteration.
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Affiliation(s)
- Yawen Chen
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Dan Xu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China
| | - Xuan Xia
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Guanghui Chen
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China
| | - Hao Xiao
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China
| | - Liaobin Chen
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China.
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China.
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Pallarés ME, Monteleone MC, Pastor V, Grillo Balboa J, Alzamendi A, Brocco MA, Antonelli MC. Early-Life Stress Reprograms Stress-Coping Abilities in Male and Female Juvenile Rats. Mol Neurobiol 2021; 58:5837-5856. [PMID: 34409559 DOI: 10.1007/s12035-021-02527-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/06/2021] [Indexed: 01/06/2023]
Abstract
Prenatal stress (PS) is a major risk factor for the development of emotional disorders in adulthood that may be mediated by an altered hypothalamic-pituitary-adrenal axis response to stress. Although the early onset of stress-related disorders is recognized as a major public health problem, to date, there are relatively few studies that have examined the incidence of early-life stressors in younger individuals. In this study, we assessed PS impact on the stress-coping response of juvenile offspring in behavioral tests and in the induced molecular changes in the hippocampus. Furthermore, we assessed if pregnancy stress could be driving changes in patterns of maternal behavior during early lactation. We found that PS modified stress-coping abilities of both sex offspring. In the hippocampus, PS increased the expression of bdnf-IV and crfr1 and induced sex difference changes on glucocorticoids and BDNF mRNA receptor levels. PS changed the hippocampal epigenetic landscape mainly in male offspring. Stress during pregnancy enhanced pup-directed behavior of stressed dams. Our study indicates that exposure to PS, in addition to enhanced maternal behavior, induces dynamic neurobehavioral variations at juvenile ages of the offspring that should be considered adaptive or maladaptive, depending on the characteristics of the confronting environment. Our present results highlight the importance to further explore risk factors that appear early in life that will be important to allow timely prevention strategies to later vulnerability to stress-related disorders.
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MESH Headings
- Animals
- Female
- Male
- Pregnancy
- Rats
- Adaptation, Psychological
- Anxiety/etiology
- Anxiety/genetics
- Anxiety/physiopathology
- Brain-Derived Neurotrophic Factor/biosynthesis
- Brain-Derived Neurotrophic Factor/genetics
- Corticosterone/blood
- Corticotropin-Releasing Hormone/biosynthesis
- Corticotropin-Releasing Hormone/genetics
- Elevated Plus Maze Test
- Gene Expression Regulation
- Glucocorticoids/biosynthesis
- Glucocorticoids/genetics
- Hippocampus/embryology
- Hippocampus/physiology
- Hypothalamo-Hypophyseal System/embryology
- Hypothalamo-Hypophyseal System/physiopathology
- Lactation/physiology
- Lactation/psychology
- Maternal Behavior
- Pituitary-Adrenal System/embryology
- Pituitary-Adrenal System/physiopathology
- Pregnancy Complications/physiopathology
- Pregnancy Complications/psychology
- Prenatal Exposure Delayed Effects
- Rats, Wistar
- Receptor, trkB/biosynthesis
- Receptor, trkB/genetics
- Receptors, Corticotropin-Releasing Hormone/biosynthesis
- Receptors, Corticotropin-Releasing Hormone/genetics
- Receptors, Glucocorticoid/biosynthesis
- Receptors, Glucocorticoid/genetics
- Restraint, Physical/adverse effects
- Sex Characteristics
- Stress, Physiological/physiology
- Stress, Psychological/physiopathology
- Swimming
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Affiliation(s)
- María Eugenia Pallarés
- Laboratorio de Neuroprogramación Perinatal del Neurodesarrollo, Instituto de Biología Celular Y Neurociencias "Prof. Eduardo De Robertis" (IBCN)- Facultad de Medicina, Universidad de Buenos Aires, 2155 Paraguay St. CABA, C1121ABG, Buenos Aires, Argentina.
| | - Melisa Carolina Monteleone
- Instituto de Investigaciones Biotecnológicas (IIB), Universidad Nacional de San Martín, Buenos Aires, Argentina
| | - Verónica Pastor
- Laboratorio de Neuroprogramación Perinatal del Neurodesarrollo, Instituto de Biología Celular Y Neurociencias "Prof. Eduardo De Robertis" (IBCN)- Facultad de Medicina, Universidad de Buenos Aires, 2155 Paraguay St. CABA, C1121ABG, Buenos Aires, Argentina
| | - Jazmín Grillo Balboa
- Laboratorio de Neuroprogramación Perinatal del Neurodesarrollo, Instituto de Biología Celular Y Neurociencias "Prof. Eduardo De Robertis" (IBCN)- Facultad de Medicina, Universidad de Buenos Aires, 2155 Paraguay St. CABA, C1121ABG, Buenos Aires, Argentina
| | - Ana Alzamendi
- Instituto Multidisciplinario de Biología Celular, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Marcela Adriana Brocco
- Instituto de Investigaciones Biotecnológicas (IIB), Universidad Nacional de San Martín, Buenos Aires, Argentina
| | - Marta Cristina Antonelli
- Laboratorio de Neuroprogramación Perinatal del Neurodesarrollo, Instituto de Biología Celular Y Neurociencias "Prof. Eduardo De Robertis" (IBCN)- Facultad de Medicina, Universidad de Buenos Aires, 2155 Paraguay St. CABA, C1121ABG, Buenos Aires, Argentina
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Abstract
The appreciation of human microbiome is gaining strong grounds in biomedical research. In addition to gut-brain axis, is the lung-brain axis, which is hypothesised to link pulmonary microbes to neurodegenerative disorders and behavioural changes. There is a need for analysis based on emerging studies to map out the prospects for lung-brain axis. In this review, relevant English literature and researches in the field of 'lung-brain axis' is reported. We recommend all the highlighted prospective studies to be integrated with an interdisciplinary approach. This might require conceptual research approaches based on physiology and pathophysiology. Multimodal aspects should include experimental animal units, while exploring the research gaps and making reference to the already existing human data. The overall microbiome medicine is gaining more ground. Aetiological paths and experimental recommendations as per prospective studies in this review will be an important guideline to develop effective treatments for any lung induced neurodegenerative diseases. An in-depth knowledge of the bi-directional communication between host and microbiome in the lung could help treatment to respiratory infections, alleviate stress, anxiety and enhanced neurological effects. The timely prevention and treatment of neurodegenerative diseases requires paradigm shift of the aetiology and more innovative experimentation.Impact statementThe overall microbiome medicine is gaining more ground. An in-depth knowledge of the bi-directional communication between host and microbiome in the lung could confer treatment to respiratory infections, alleviate stress, anxiety and enhanced neurological effects. Based on this review, we recommend all the highlighted prospective studies to be integrated and be given an interdisciplinary approach. This might require conceptual research approaches based on physiology and pathophysiology. Multimodal aspects should include experimental animal units; while exploring the research gaps and making reference to the already existing human data.
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Affiliation(s)
- Ousman Bajinka
- Department of Medical Microbiology, Central South University, Changsha, Hunan Provinces, China.,China-Africa Research Center of Infectious Diseases, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China.,School of Medicine and Allied Health Sciences, University of The Gambia, Banjul, Gambia
| | - Lucette Simbilyabo
- Department of Neurosurgery, Xiangya Hospital of Central South University, Changsha, Hunan Provinces, China
| | - Yurong Tan
- Department of Medical Microbiology, Central South University, Changsha, Hunan Provinces, China.,China-Africa Research Center of Infectious Diseases, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - John Jabang
- School of Medicine and Allied Health Sciences, University of The Gambia, Banjul, Gambia
| | - Shakeel Ahmed Saleem
- Department of Neurosurgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Provinces, China
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Zheng Y, Zhang YM, Tang ZS, Du JK, Guo DW, Xu YJ, Sheng H, Lu JQ, Ni X. Spatial learning and memory deficits induced by prenatal glucocorticoid exposure depend on hippocampal CRHR1 and CXCL5 signaling in rats. J Neuroinflammation 2021; 18:85. [PMID: 33810797 PMCID: PMC8019183 DOI: 10.1186/s12974-021-02129-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 03/12/2021] [Indexed: 11/13/2022] Open
Abstract
Background Prenatal synthetic glucocorticoid (sGC) exposure increases the susceptibility to cognitive and affective disorders in postnatal life. We previously demonstrated that prenatal sGC exposure results in an increase in corticotropin-releasing hormone (CRH) receptor type 1 (CRHR1) expression in the hippocampus of rats, and CRHR1 is involved in synapse formation via regulation of C-X-C chemokine ligand 5 (CXCL5) in hippocampus. We sought to investigate that the roles of CRHR1 and CXCL5 in learning and memory impairment caused by prenatal sGC exposure. Methods Pregnant rats were administered with saline or dexamethasone (DEX) from gestational day (GD) 14 to GD21. DEX offspring at 2-day old were treated with saline and CRHR1 antagonists (antalarmin and CP154526) for 7 days. Some DEX offspring received intra-hippocampal injection of AAV9 carrying CXCL5 gene. Spatial learning and memory was assessed by Morris water maze test. Immunofluorescence analysis was applied to show synapsin I and PSD95 signals in hippocampus. Synapsin I and PSD95 protein level and CXCL5 concentration were determined by western blotting and ELISA, respectively. Organotypic hippocampal slice cultures were used to investigate the effect of DEX on CXCL5 production in vitro. Results Both male and female DEX offspring displayed impairment of spatial learning and memory in adulthood. Synapsin I and PSD95 signals and CXCL5 levels were decreased in DEX offspring. DEX offspring with antalarmin and CP154526 treatment showed improved spatial learning and memory. Antalarmin and CP154526 treatment increased synapsin I and PSD95 signals and CXCL5 concentration in hippocampus. Bilaterally hippocampal injection of AAV9 carrying CXCL5 gene improved the spatial learning and memory and increased CXCL5 concentration and synapsin I and PSD95 levels in hippocampus. DEX dose-dependently suppressed CXCL5 production in cultured hippocammpal slices, which was prevented by antalarmin treatment. Conclusion CRHR1 and CXCL5 signaling in the hippocampus are involved in spatial learning and memory deficits caused by prenatal DEX exposure. CRHR1 activation contributes to decreased CXCL5 production in hippocampus induced by prenatal DEX treatment. Our study provides a molecular basis of prenatal GC exposure programming spatial learning and memory.
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Affiliation(s)
- You Zheng
- Department of Gynecology and Obstetrics and Research Center for Molecular Metabolomics, Xiangya Hospital Central South University, Changsha, 410008, China.,Department of Physiology, Navy Medical University, Shanghai, 200433, China.,Laboratory of Cell Engineering, Institute of Biotechnology, Beijing, 100071, China
| | - Yan-Min Zhang
- Department of Physiology, Navy Medical University, Shanghai, 200433, China.,School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
| | - Zheng-Shan Tang
- Department of Gynecology and Obstetrics and Research Center for Molecular Metabolomics, Xiangya Hospital Central South University, Changsha, 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, 410008, China
| | - Jian-Kui Du
- Department of Gynecology and Obstetrics and Research Center for Molecular Metabolomics, Xiangya Hospital Central South University, Changsha, 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, 410008, China
| | - De-Wei Guo
- Department of Gynecology and Obstetrics and Research Center for Molecular Metabolomics, Xiangya Hospital Central South University, Changsha, 410008, China
| | - Yong-Jun Xu
- Department of Physiology, Navy Medical University, Shanghai, 200433, China
| | - Hui Sheng
- Department of Physiology, Navy Medical University, Shanghai, 200433, China
| | - Jian-Qiang Lu
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
| | - Xin Ni
- Department of Gynecology and Obstetrics and Research Center for Molecular Metabolomics, Xiangya Hospital Central South University, Changsha, 410008, China. .,Department of Physiology, Navy Medical University, Shanghai, 200433, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, 410008, China.
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16
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Lalonde C, Grandbois J, Khurana S, Murray A, Tharmalingam S, Tai TC. Late gestational exposure to dexamethasone and fetal programming of abnormal behavior in Wistar Kyoto rats. Brain Behav 2021; 11:e02049. [PMID: 33528889 PMCID: PMC8035474 DOI: 10.1002/brb3.2049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 12/16/2020] [Accepted: 01/08/2021] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION Fetal programming was characterized a few decades ago, explaining the correlation of physiological phenotypes of offspring exposed to early-life stress. High acute or chronic prenatal stress can overwhelm the enzymatic placental barrier, inducing transcriptional changes in the fetus that can result in different adverse behavioral and physiological phenotypes. The current study investigates the impact of exposure to the synthetic glucocorticoid, dexamethasone, during late gestation on behavioral outcomes. METHODS Pregnant Wistar Kyoto rats were given daily subcutaneous injections from gestational days 15-21 of either dexamethasone (0.9% NaCl, 4% EtOH, 100 µg kg-1 day-1 ) or were physically manipulated as naïve controls. Pups were raised normally until 17 weeks of age and underwent the Porsolt swim task and elevated plus maze for depressive and anxiety-like behaviors, respectively. Neural tissue was preserved for genetic analysis using quantitative real-time polymerase chain reaction. RESULTS Statistical analyses show significant disruption of behavior and genetic profiles of offspring exposed to dexamethasone in-utero. Exposed animals spent more time immobile on the swim task and entered open arms of the elevated plus maze more often than their naïve counterparts. In the prefrontal cortex, there was a sex by treatment interaction on gene expression relevant to neural transmission in ryanodine receptor 2, as well as increased gene expression in SNAP25, COMT, and LSAMP in males prenatally exposed to dexamethasone compared with controls. Both dysregulated genes and behavior are linked to decreased anxiety and fear inhibition. CONCLUSION Our results indicate adult offspring exposed to dexamethasone in-utero have a tendency toward passive stress-coping strategies and an inhibition of anxiety on behavioral tasks. Methyltransferase activity, synaptic activity, and cellular processes were disrupted in the prefrontal cortices of these animals. Specifically, genes involved in emotional response pathways were overexpressed, supporting the link between the behavioral and genetic profiles. Combined, we determine that dexamethasone offspring have adaptive predispositions when faced with novel situations, with increased immobility in the swim task and increased exploration on the elevated plus maze.
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Affiliation(s)
- Christine Lalonde
- Biomolecular Sciences, Laurentian University, Sudbury, ON, Canada.,Division of Medical Sciences, Northern Ontario School of Medicine, Sudbury, ON, Canada
| | - Julie Grandbois
- Division of Medical Sciences, Northern Ontario School of Medicine, Sudbury, ON, Canada.,Department of Biology, Laurentian University, Sudbury, ON, Canada
| | - Sandhya Khurana
- Biomolecular Sciences, Laurentian University, Sudbury, ON, Canada
| | - Alyssa Murray
- Division of Medical Sciences, Northern Ontario School of Medicine, Sudbury, ON, Canada.,Department of Biology, Laurentian University, Sudbury, ON, Canada
| | - Sujeenthar Tharmalingam
- Biomolecular Sciences, Laurentian University, Sudbury, ON, Canada.,Division of Medical Sciences, Northern Ontario School of Medicine, Sudbury, ON, Canada.,Department of Biology, Laurentian University, Sudbury, ON, Canada.,Department of Chem/Biochem, Laurentian University, Sudbury, ON, Canada
| | - T C Tai
- Biomolecular Sciences, Laurentian University, Sudbury, ON, Canada.,Division of Medical Sciences, Northern Ontario School of Medicine, Sudbury, ON, Canada.,Department of Biology, Laurentian University, Sudbury, ON, Canada.,Department of Chem/Biochem, Laurentian University, Sudbury, ON, Canada
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17
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Lignelli E, Palumbo F, Myti D, Morty RE. Recent advances in our understanding of the mechanisms of lung alveolarization and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2019; 317:L832-L887. [PMID: 31596603 DOI: 10.1152/ajplung.00369.2019] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common cause of morbidity and mortality in preterm infants. A key histopathological feature of BPD is stunted late lung development, where the process of alveolarization-the generation of alveolar gas exchange units-is impeded, through mechanisms that remain largely unclear. As such, there is interest in the clarification both of the pathomechanisms at play in affected lungs, and the mechanisms of de novo alveoli generation in healthy, developing lungs. A better understanding of normal and pathological alveolarization might reveal opportunities for improved medical management of affected infants. Furthermore, disturbances to the alveolar architecture are a key histopathological feature of several adult chronic lung diseases, including emphysema and fibrosis, and it is envisaged that knowledge about the mechanisms of alveologenesis might facilitate regeneration of healthy lung parenchyma in affected patients. To this end, recent efforts have interrogated clinical data, developed new-and refined existing-in vivo and in vitro models of BPD, have applied new microscopic and radiographic approaches, and have developed advanced cell-culture approaches, including organoid generation. Advances have also been made in the development of other methodologies, including single-cell analysis, metabolomics, lipidomics, and proteomics, as well as the generation and use of complex mouse genetics tools. The objective of this review is to present advances made in our understanding of the mechanisms of lung alveolarization and BPD over the period 1 January 2017-30 June 2019, a period that spans the 50th anniversary of the original clinical description of BPD in preterm infants.
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Affiliation(s)
- Ettore Lignelli
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Francesco Palumbo
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Despoina Myti
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
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18
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Systems Approach to Identify Common Genes and Pathways Associated with Response to Selective Serotonin Reuptake Inhibitors and Major Depression Risk. Int J Mol Sci 2019; 20:ijms20081993. [PMID: 31018568 PMCID: PMC6514561 DOI: 10.3390/ijms20081993] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/17/2019] [Accepted: 04/20/2019] [Indexed: 12/27/2022] Open
Abstract
Despite numerous studies on major depressive disorder (MDD) susceptibility, the precise underlying molecular mechanism has not been elucidated which restricts the development of etiology-based disease-modifying drug. Major depressive disorder treatment is still symptomatic and is the leading cause of (~30%) failure of the current antidepressant therapy. Here we comprehended the probable genes and pathways commonly associated with antidepressant response and MDD. A systematic review was conducted, and candidate genes/pathways associated with antidepressant response and MDD were identified using an integrative genetics approach. Initially, single nucleotide polymorphisms (SNPs)/genes found to be significantly associated with antidepressant response were systematically reviewed and retrieved from the candidate studies and genome-wide association studies (GWAS). Also, significant variations concerning MDD susceptibility were extracted from GWAS only. We found 245 (Set A) and 800 (Set B) significantly associated genes with antidepressant response and MDD, respectively. Further, gene set enrichment analysis revealed the top five co-occurring molecular pathways (p ≤ 0.05) among the two sets of genes: Cushing syndrome, Axon guidance, cAMP signaling pathway, Insulin secretion, and Glutamatergic synapse, wherein all show a very close relation to synaptic plasticity. Integrative analyses of candidate gene and genome-wide association studies would enable us to investigate the putative targets for the development of disease etiology-based antidepressant that might be more promising than current ones.
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Wu T, Huang Y, Gong Y, Xu Y, Lu J, Sheng H, Ni X. Treadmill Exercise Ameliorates Depression-Like Behavior in the Rats With Prenatal Dexamethasone Exposure: The Role of Hippocampal Mitochondria. Front Neurosci 2019; 13:264. [PMID: 30971882 PMCID: PMC6443890 DOI: 10.3389/fnins.2019.00264] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/06/2019] [Indexed: 12/11/2022] Open
Abstract
Prenatal exposure to synthetic glucocorticoids (sGCs) can increase the risk of affective disorders, such as depression, in adulthood. Given that exercise training can ameliorate depression and improve mitochondrial function, we sought to investigate whether exercise can ameliorate depression-like behavior induced by prenatal sGC exposure and mitochondria function contributes to that behavior. At first, we confirmed that prenatal dexamethasone (Dex) administration in late pregnancy resulted in depression-like behavior and elevated level of circulatory corticosterone in adult offspring. We then found that mRNA and protein expression of a number of mitochondrial genes was changed in the hippocampus of Dex offspring. Mitochondria in the hippocampus showed abnormal morphology, oxidative stress and dysfunction in Dex offspring. Intracerebroventricular (ICV) injection of the mitochondrial superoxide scavenger mitoTEMPO significantly alleviated depression-like behavior but did not significantly affect circulatory corticosterone level in Dex offspring. The adult Dex offspring treated with treadmill exercise starting at four-weeks of age showed ameliorated depressive-like behavior, improved mitochondrial morphology and function and reduced circulatory corticosterone level. Our data suggest mitochondria dysfunction contributes to depression-like behavior caused by prenatal sGC exposure. Intervention with exercise training in early life can reverse depression caused by prenatal Dex exposure, which is associated with improvement of mitochondrial function in the hippocampus.
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Affiliation(s)
- Tianwen Wu
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Yan Huang
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Yuxiang Gong
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yongjun Xu
- Department of Physiology, Second Military Medical University, Shanghai, China.,Department of Clinical Genetics and Experimental Medicine, Fuzhou General Hospital, School of Medicine, Xiamen University, Fuzhou, China
| | - Jianqiang Lu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Hui Sheng
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Xin Ni
- Department of Physiology, Second Military Medical University, Shanghai, China.,Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, China
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20
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Hamada H, Matthews SG. Prenatal programming of stress responsiveness and behaviours: Progress and perspectives. J Neuroendocrinol 2019; 31:e12674. [PMID: 30582647 DOI: 10.1111/jne.12674] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/07/2018] [Accepted: 12/15/2018] [Indexed: 12/12/2022]
Abstract
Parental exposure to stress or glucocorticoids either before or during pregnancy can have profound influences on neurodevelopment, neuroendocrine function and behaviours in offspring. Specific outcomes are dependent on the nature, intensity and timing of the exposure, as well as species, sex and age of the subject. Most recently, it has become evident that outcomes are not confined to first-generation offspring and that there may be intergenerational and transgenerational transmission of effects. There has been intense focus on the mechanisms by which such early exposure leads to long-term and potential transgenerational outcomes, and there is strong emerging evidence that epigenetic processes (histone modifications, DNA methylation, and small non-coding RNAs) are involved. New knowledge in this area may allow the development of interventions that can prevent, ameliorate or reverse the long-term negative outcomes associated with exposure to early adversity. This review will focus on the latest research, bridging human and pre-clinical studies, and will highlight some of the limitations, challenges and gaps that exist in the field.
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Affiliation(s)
- Hirotaka Hamada
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Stephen G Matthews
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute, Sinai Health Systems, Toronto, Ontario, Canada
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21
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Ilg L, Kirschbaum C, Li SC, Rosenlöcher F, Miller R, Alexander N. Persistent Effects of Antenatal Synthetic Glucocorticoids on Endocrine Stress Reactivity From Childhood to Adolescence. J Clin Endocrinol Metab 2019; 104:827-834. [PMID: 30285119 DOI: 10.1210/jc.2018-01566] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/28/2018] [Indexed: 02/05/2023]
Abstract
CONTEXT Antenatal synthetic glucocorticoid (sGC) therapy has been identified as a potent programming factor of the hypothalamic-pituitary-adrenal (HPA) axis. We previously observed significantly increased cortisol stress responses in 6- to 11-year-old, term-born children exposed to antenatal sGCs compared with controls. These findings call for longitudinal follow-up studies to evaluate long-term effects of antenatal sGCs, given that adolescence is marked by a substantial shift of HPA axis functioning. OBJECTIVE This study aimed to longitudinally investigate the stability of antenatal sGC-related effects on cortisol stress reactivity from childhood to adolescence. DESIGN, SETTING, AND PARTICIPANTS To evaluate long-term trajectories of antenatal sGCs, we longitudinally followed a subsample (n = 44) of our children's cohort into adolescence (14 to 18 years old) for a second assessment. To this end, 22 adolescents with antenatal sGC exposure and 22 untreated controls underwent a standardized laboratory stressor [Trier Social Stress Test (TSST)]. RESULTS Besides a general increase in HPA axis reactivity from childhood to adolescence (P < 0.05), participants treated with antenatal sGCs showed significantly higher cortisol levels in response to the TSST compared with controls during both developmental stages (P < 0.05). Furthermore, we observed a moderating effect of sGCs on rank-order stability of cortisol stress reactivity from childhood to adolescence (P < 0.05) with a trend (P = 0.07) for higher rank-order stability in sGC-exposed individuals (r = 0.37) compared with controls (r = -0.20). CONCLUSION These findings suggest that antenatal sGCs yield long-term changes of HPA axis reactivity that persist into adolescence and may confer increased vulnerability for developing stress-related disorders.
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Affiliation(s)
- Liesa Ilg
- Chair for Lifespan Developmental Neuroscience, Faculty of Psychology, Technische Universität Dresden, Dresden, Germany
| | - Clemens Kirschbaum
- Chair for Biopsychology, Faculty of Psychology, Technische Universität Dresden, Dresden, Germany
| | - Shu-Chen Li
- Chair for Lifespan Developmental Neuroscience, Faculty of Psychology, Technische Universität Dresden, Dresden, Germany
| | - Franziska Rosenlöcher
- Vocational School for Obstetric Care, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Germany
| | - Robert Miller
- Chair for Biopsychology, Faculty of Psychology, Technische Universität Dresden, Dresden, Germany
| | - Nina Alexander
- Department of Psychology, Faculty of Human Sciences, Medical School Hamburg, Hamburg, Germany
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