Long-term programming of CD8 T cell immunity by perinatal exposure to stress hormone [RNA-seq]
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE136978 | GEO | 2020/01/01
REPOSITORIES: GEO
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Project description:Early life environmental exposure, particularly during perinatal period, can have a lifelong impact on organismal development and physiology. The biological rationale for this phenomenon is to promote physiological adaptation to the anticipated environment based on early life experience. However, perinatal exposure to adverse environments can also be associated with adult-onset disorders. Multiple environmental stressors induce glucocorticoids, which prompted us to investigate their role in developmental programming. Here, we report that perinatal glucocorticoid exposure had long-term consequences and resulted in diminished CD8 T cell response in adulthood and impaired control of tumor growth and bacterial infection. We found that perinatal glucocorticoid exposure resulted in persistent alteration of the hypothalamic-pituitaryadrenal (HPA) axis. Consequently, the level of the hormone in adults was significantly reduced, resulting in decreased CD8 T cell function. Our study thus demonstrates that perinatal stress can have long-term consequences on CD8 T cell immunity by altering HPA axis activity.
2020-01-01 | GSE136972 | GEO
Project description:This a model from the article:
Inclusion of the glucocorticoid receptor in a hypothalamic pituitary adrenal
axis model reveals bistability.
Gupta S, Aslakson E, Gurbaxani BM, Vernon SD. Theor Biol Med Model
2007 Feb 14;4:8 17300722
,
Abstract:
BACKGROUND: The body's primary stress management system is the hypothalamic
pituitary adrenal (HPA) axis. The HPA axis responds to physical and mental
challenge to maintain homeostasis in part by controlling the body's cortisol
level. Dysregulation of the HPA axis is implicated in numerous stress-related
diseases. RESULTS: We developed a structured model of the HPA axis that includes
the glucocorticoid receptor (GR). This model incorporates nonlinear kinetics of
pituitary GR synthesis. The nonlinear effect arises from the fact that GR
homodimerizes after cortisol activation and induces its own synthesis in the
pituitary. This homodimerization makes possible two stable steady states (low
and high) and one unstable state of cortisol production resulting in bistability
of the HPA axis. In this model, low GR concentration represents the normal
steady state, and high GR concentration represents a dysregulated steady state.
A short stress in the normal steady state produces a small perturbation in the
GR concentration that quickly returns to normal levels. Long, repeated stress
produces persistent and high GR concentration that does not return to baseline
forcing the HPA axis to an alternate steady state. One consequence of increased
steady state GR is reduced steady state cortisol, which has been observed in
some stress related disorders such as Chronic Fatigue Syndrome (CFS).
CONCLUSION: Inclusion of pituitary GR expression resulted in a biologically
plausible model of HPA axis bistability and hypocortisolism. High GR
concentration enhanced cortisol negative feedback on the hypothalamus and forced
the HPA axis into an alternative, low cortisol state. This model can be used to
explore mechanisms underlying disorders of the HPA axis.
This model was taken from the CellML repository
and automatically converted to SBML.
The original model was:
Gupta S, Aslakson E, Gurbaxani BM, Vernon SD. (2007) - version=1.0
The original CellML model was created by:
Catherine Lloyd
c.lloyd@auckland.ac.nz
The University of Auckland
This model originates from BioModels Database: A Database of Annotated Published Models (http://www.ebi.ac.uk/biomodels/). It is copyright (c) 2005-2011 The BioModels.net Team.
To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication
for more information.
In summary, you are entitled to use this encoded model in absolutely any manner you deem suitable, verbatim, or with modification, alone or embedded it in a larger context, redistribute it, commercially or not, in a restricted way or not..
To cite BioModels Database, please use: Li C, Donizelli M, Rodriguez N, Dharuri H, Endler L, Chelliah V, Li L, He E, Henry A, Stefan MI, Snoep JL, Hucka M, Le Novère N, Laibe C (2010) BioModels Database: An enhanced, curated and annotated resource for published quantitative kinetic models. BMC Syst Biol., 4:92.
2005-01-01 | MODEL1006230111 | BioModels
Project description:This a model from the article:
Inclusion of the glucocorticoid receptor in a hypothalamic pituitary adrenal
axis model reveals bistability.
Gupta S, Aslakson E, Gurbaxani BM, Vernon SD. Theor Biol Med Model
2007 Feb 14;4:8 17300722
,
Abstract:
BACKGROUND: The body's primary stress management system is the hypothalamic
pituitary adrenal (HPA) axis. The HPA axis responds to physical and mental
challenge to maintain homeostasis in part by controlling the body's cortisol
level. Dysregulation of the HPA axis is implicated in numerous stress-related
diseases. RESULTS: We developed a structured model of the HPA axis that includes
the glucocorticoid receptor (GR). This model incorporates nonlinear kinetics of
pituitary GR synthesis. The nonlinear effect arises from the fact that GR
homodimerizes after cortisol activation and induces its own synthesis in the
pituitary. This homodimerization makes possible two stable steady states (low
and high) and one unstable state of cortisol production resulting in bistability
of the HPA axis. In this model, low GR concentration represents the normal
steady state, and high GR concentration represents a dysregulated steady state.
A short stress in the normal steady state produces a small perturbation in the
GR concentration that quickly returns to normal levels. Long, repeated stress
produces persistent and high GR concentration that does not return to baseline
forcing the HPA axis to an alternate steady state. One consequence of increased
steady state GR is reduced steady state cortisol, which has been observed in
some stress related disorders such as Chronic Fatigue Syndrome (CFS).
CONCLUSION: Inclusion of pituitary GR expression resulted in a biologically
plausible model of HPA axis bistability and hypocortisolism. High GR
concentration enhanced cortisol negative feedback on the hypothalamus and forced
the HPA axis into an alternative, low cortisol state. This model can be used to
explore mechanisms underlying disorders of the HPA axis.
This model was taken from the CellML repository
and automatically converted to SBML.
The original model was:
Gupta S, Aslakson E, Gurbaxani BM, Vernon SD. (2007) - version=1.0
The original CellML model was created by:
Catherine Lloyd
c.lloyd@auckland.ac.nz
The University of Auckland
This model originates from BioModels Database: A Database of Annotated Published Models (http://www.ebi.ac.uk/biomodels/). It is copyright (c) 2005-2011 The BioModels.net Team.
To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication
for more information.
In summary, you are entitled to use this encoded model in absolutely any manner you deem suitable, verbatim, or with modification, alone or embedded it in a larger context, redistribute it, commercially or not, in a restricted way or not..
To cite BioModels Database, please use: Li C, Donizelli M, Rodriguez N, Dharuri H, Endler L, Chelliah V, Li L, He E, Henry A, Stefan MI, Snoep JL, Hucka M, Le Novère N, Laibe C (2010) BioModels Database: An enhanced, curated and annotated resource for published quantitative kinetic models. BMC Syst Biol., 4:92.
2005-01-01 | MODEL1006230036 | BioModels
Project description:The long-term effects of neonatal intermittent hypoxia (IH), an accepted model of apnea-induced hypoxia, are unclear. We have previously shown lasting “programming” effects on the HPA axis in adult rats exposed to neonatal IH. We hypothesized that neonatal rat exposure to IH will subsequently result in a heightened inflammatory state in the adult. Rat pups were exposed to normoxia (control) or six cycles of 5% IH or 10% IH over one hour daily from postnatal day 2 – 6. Plasma samples from blood obtained at 114 days of age were analyzed by assessing the capacity to induce transcription in a healthy peripheral blood mononuclear cell (PBMC) population and read using a high-density microarray. The analysis of plasma from adult rats previously exposed to neonatal 5% IH vs. 10% IH resulted in 2,579 significantly regulated genes including increased expression of Cxcl1, Cxcl2, Ccl3, Il1a, and Il1b. We conclude that neonatal exposure to intermittent hypoxia elicits a long-lasting programming effect in the adult resulting in an upregulation of inflammatory-related genes. Apnea is the most common cause of neonatal hypoxia affecting about 50% of preterm births (30 – 31 weeks), usually due to immature respiratory development. Upregulation of inflammatory genes and pathways in children 7 – 10 years of age has been shown, and there is a known increased risk of insulin resistance in adulthood when the fetus is exposed to maternal hypoxia, but the mechanism is unclear. The long-term metabolic, endocrine, and immunological effects of neonatal intermittent hypoxia (IH) exposure, an accepted model of apnea-induced hypoxia, have not been thoroughly evaluated. Recent studies in rats have shown that perinatal IH exposure can result in oxidative stress, causing a permanent immune response subsequently resulting in features of diabetes mellitus. We have previously examined adult rats exposed to neonatal intermittent hypoxia and perinatal continuous hypoxia, and have found lasting “programming” effects on the HPA axis. We now assess the long term effects of an accepted model of apnea-induced hypoxia using a validated transcriptional bioassay to study the extracellular milieu of adult rats exposed to neonatal intermittent hypoxia. We hypothesize that exposure to neonatal intermittent hypoxia will result in an increased inflammatory state in the adult as a result of long-lasting programming.
2016-01-07 | GSE74145 | GEO
Project description:The long-term effects of neonatal intermittent hypoxia (IH), an accepted model of apnea-induced hypoxia, are unclear. We have previously shown lasting âprogrammingâ effects on the HPA axis in adult rats exposed to neonatal IH. We hypothesized that neonatal rat exposure to IH will subsequently result in a heightened inflammatory state in the adult. Rat pups were exposed to normoxia (control) or six cycles of 5% IH or 10% IH over one hour daily from postnatal day 2 â 6. Plasma samples from blood obtained at 114 days of age were analyzed by assessing the capacity to induce transcription in a healthy peripheral blood mononuclear cell (PBMC) population and read using a high-density microarray. The analysis of plasma from adult rats previously exposed to neonatal 5% IH vs. 10% IH resulted in 2,579 significantly regulated genes including increased expression of Cxcl1, Cxcl2, Ccl3, Il1a, and Il1b. We conclude that neonatal exposure to intermittent hypoxia elicits a long-lasting programming effect in the adult resulting in an upregulation of inflammatory-related genes. Apnea is the most common cause of neonatal hypoxia affecting about 50% of preterm births (30 â 31 weeks), usually due to immature respiratory development. Upregulation of inflammatory genes and pathways in children 7 â 10 years of age has been shown, and there is a known increased risk of insulin resistance in adulthood when the fetus is exposed to maternal hypoxia, but the mechanism is unclear. The long-term metabolic, endocrine, and immunological effects of neonatal intermittent hypoxia (IH) exposure, an accepted model of apnea-induced hypoxia, have not been thoroughly evaluated. Recent studies in rats have shown that perinatal IH exposure can result in oxidative stress, causing a permanent immune response subsequently resulting in features of diabetes mellitus. We have previously examined adult rats exposed to neonatal intermittent hypoxia and perinatal continuous hypoxia, and have found lasting âÂÂprogrammingâ effects on the HPA axis. We now assess the long term effects of an accepted model of apnea-induced hypoxia using a validated transcriptional bioassay to study the extracellular milieu of adult rats exposed to neonatal intermittent hypoxia. We hypothesize that exposure to neonatal intermittent hypoxia will result in an increased inflammatory state in the adult as a result of long-lasting programming. Sprague-Dawley (SD) rat pups were treated with neonatal normoxia (21% O2, control), 5% intermittent hypoxia (IH), or 10% IH on postnatal days (PD) 2-6, daily over 1 hr. They were reared normally by birth dams and weaned at PD22. Males were allowed to mature and sacrificed at age PD114 after an overnight fast. Whole blood collected by decapitation into tubes with EDTA, and plasma saved for further analysis. Two adult (~180 day) male Brown Norway (BN) rats served as PBMC donors. Cells were incubated with 20% plasma that was either autologous BN (self-control), or one of 3 pools: a) SD normoxic N=8, b) SD 5% IH treated N=5, and c) SD 10% IH N=3.
2016-01-07 | E-GEOD-74145 | biostudies-arrayexpress
Project description:Adverse experiences in childhood are associated with altered hypothalamic pituitary adrenal axis function and negative health outcomes throughout life. It is now commonly accepted that abuse and neglect can alter epigenetic regulation of HPA genes. Accumulated evidence suggests harsh parenting practices such as spanking are also strong predictors of negative health outcomes. We predicted harsh parenting at 2.5 years old would predict HPA gene DNA methylation similarly to abuse and neglect, and cortisol output at 8.5 years old. Saliva samples were collected three times a day across three days to estimate cortisol diurnal slopes. Methylation was quantified using the Illumina Infinium MethylationEPIC array BeadChip (850K) with DNA collected from buccal cells. We used principal components analysis to compute a summary statistic for CpG sites across candidate genes. The first and second components were used as outcome variables in mixed linear regression analyses with harsh parenting as a predictor variable. We found harsh parenting significantly predicted methylation of several HPA axis genes, including novel gene associations with AVPRB1, CRHR1, CRHR2, and MC2R (FDR corrected p < 0.05). Further, we found NR3C1 methylation predicted a steeper diurnal cortisol slope. Our results extend the current literature by demonstrating harsh parenting may influence DNA methylation similarly to more extreme early life experiences such as abuse and neglect. Further, we show NR3C1 methylation is associated with diurnal HPA function. Elucidating the molecular consequences of harsh parenting on health can inform best parenting practices and provide potential treatment targets for common complex disorders.
2021-04-01 | GSE147058 | GEO
Project description:Environmental cadmium, with a high average dietary intake, is a severe public health risk. However, the long-term health implications of environmental exposure to cadmium in different life stages remain unclear. We used microarrays to explore the effects of early exposure to low-dose cadmium on hepatic gene expression.
2016-12-31 | GSE83326 | GEO
Project description:Long-term programming of CD8 T cell immunity by perinatal exposure to stress hormone
| PRJNA564143 | ENA
Project description:Psychological stress is a risk factor for several diseases. In particular, stressor exposure has been linked with various psychiatric disorders. Since the hypothalamic-pituitary-adrenal (HPA) axis plays a central role in the regulation of stress responses, it has been implicated in the etiology of stress related disorders such as PTSD. The HPA axis regulate synthesis and release of glucocorticoids and its dysregulation cause abnormal response to stress. FK506-binding protein 51 (FKBP5) is a co chaperone of HSP90 in the glucocorticoid receptor (GR) molecular complex and a key regulator of the sensitivity of GR. In this study, we profiled the miRNAs in the prefrontal cortex of FKBP5 knock out mice compared to the wild type. Subsequently, we profiled target mRNAs for differentially expressed miRNAs in the FKBP5 deficient mice using several tools for sequence-based miRNA target prediction such as miRDB, DIANA tool, miRmap and TargetScan. Gene ontology analysis suggested that differentially expressed miRNAs in the brain of FKBP5 deficient mice may be involved in neuron development, cell motion, endocytosis, and cell-cell adhesion. These results suggest that Nfasc could be a new target for understanding of the pathophysiology of PTSD.
2020-10-31 | GSE139502 | GEO
Project description:DEHP study Phthalate plasticizers are ubiquitous chemicals linked to several cardiovascular diseases in animal models and in humans. In spite of this, the mechanisms by which phthalate exposures cause adverse cardiac health outcomes are unclear. In particular, whether phthalate exposures during pregnancy interfere with normal developmental programming of the cardiovascular system, and the resulting implications this may have for long-term disease risk, are unknown. Recent studies suggest that the effects of phthalates on metabolic and neurobehavioral outcomes are sex-specific. However, the influence of sex on cardiac susceptibility to phthalate exposures has not been investigated. One mechanism by which developmental exposures may influence long-term health is through altered programming of DNA methylation. In this work, we utilized an established mouse model of human-relevant perinatal exposure and enhanced reduced representation bisulfite sequencing to investigate the long-term effects of diethylhexyl phthalate (DEHP) exposure on DNA methylation in the hearts of adult male and female offspring at 5 months of age (n=5-7 mice per sex and exposure). Perinatal DEHP exposure led to hundreds of sex-specific, differentially methylated cytosines (DMCs) and differentially methylated regions (DMRs) in the heart. Pathway analysis of DMCs revealed enrichment for several pathways in females, including insulin signaling, regulation of histone methylation, and tyrosine phosphatase activity. In males, DMCs were enriched for glucose transport, energy generation, and developmental programs. Notably many sex-specific genes differentially methylated with DEHP exposure in our mouse model were also differentially methylated in published data of heart tissues collected from human heart failure patients. Together these data highlight the potential role for DNA methylation in DEHP-induced cardiac effects, and emphasize the importance of sex as a biological variable in environmental health studies. Lead study Environmental factors play an important role in the etiology of cardiovascular diseases. Cardiovascular diseases exhibit marked sexual dimorphism; however, the sex-specific effects of environmental exposures on cardiac health are incompletely understood. Perinatal and adult exposures to the metal lead (Pb) are linked to several adverse cardiovascular outcomes, but the sex-specific effects of this toxicant on the heart have received little attention. Perinatal environmental exposures can lead to disease through disruption of the normal epigenetic programming that occurs during early development. Using a mouse model of human-relevant perinatal environmental exposure, we investigated the effects of exposure to Pb during gestation and lactation on DNA methylation in the hearts of adult offspring mice (n=6 per sex). Two weeks prior to mating, dams were assigned to control or Pb acetate (32 ppm) water, and exposure continued until offspring were weaned at 3 weeks of age. Enhanced reduced-representation bisulfite sequencing was used to measure DNA methylation in the hearts of offspring at 5 months of age. Although Pb exposure stopped at 3 weeks of age, we discovered hundreds of differentially methylated cytosines (DMCs) and regions (DMRs) in males and females at 5 months of age. DMCs/DMRs and their associated genes were sex-specific, with a small, but statistically significant subset overlapping between sexes. Pathway analysis revealed altered methylation of genes important for cardiac and other tissue development in males, and histone demethylation in females. Together, these data demonstrate that perinatal exposure to Pb induces sex-specific changes in cardiac DNA methylation that are present long after cessation of exposure, and highlight the importance of considering sex in environmental epigenetics and mechanistic toxicology studies.
2020-07-15 | GSE152711 | GEO