Glucocorticoid receptor gene expression and promoter CpG modifications throughout the human brain.
Identifieur interne : 000513 ( Main/Exploration ); précédent : 000512; suivant : 000514Glucocorticoid receptor gene expression and promoter CpG modifications throughout the human brain.
Auteurs : Lei Cao-Lei [Allemagne] ; Songkiet Suwansirikul ; Prapan Jutavijittum ; Sophie B. Mériaux ; Jonathan D. Turner ; Claude P. MullerSource :
- Journal of psychiatric research [ 1879-1379 ] ; 2013.
English descriptors
- KwdEn :
- Adult, Analysis of Variance, Brain (anatomy & histology), Brain (metabolism), Dinucleoside Phosphates (genetics), Female, Gene Expression (physiology), Humans, Male, Middle Aged, Postmortem Changes, Promoter Regions, Genetic (physiology), Receptors, Glucocorticoid (metabolism), Receptors, Mineralocorticoid (genetics), Receptors, Mineralocorticoid (metabolism), Young Adult.
- MESH :
- chemical , genetics : Dinucleoside Phosphates, Receptors, Mineralocorticoid.
- anatomy & histology : Brain.
- metabolism : Brain, Receptors, Glucocorticoid, Receptors, Mineralocorticoid.
- physiology : Gene Expression, Promoter Regions, Genetic.
- Adult, Analysis of Variance, Female, Humans, Male, Middle Aged, Postmortem Changes, Young Adult.
Abstract
Glucocorticoids and the glucocorticoid (GR) and mineralocorticoid (MR) receptors have been implicated in many processes, particularly in negative feedback regulation of the hypothalamic-pituitary-adrenal axis. Epigenetically programmed GR alternative promoter usage underlies transcriptional control of GR levels, generation of GR 3' splice variants, and the overall GC response in the brain. No detailed analysis of GR first exons or GR transcript variants throughout the human brain has been reported. Therefore we investigated post mortem tissues from 28 brain regions of 5 individuals. GR first exons were expressed throughout the healthy human brain with no region-specific usage patterns. First exon levels were highly inter-correlated suggesting that they are co-regulated. GR 3' splice variants (GRα and GR-P) were equally distributed in all regions, and GRβ expression was always low. GR/MR ratios showed significant differences between the 28 tissues with the highest ratio in the pituitary gland. Modification levels of individual CpG dinucleotides, including 5-mC and 5-hmC, in promoters 1D, 1E, 1F, and 1H were low, and diffusely clustered; despite significant heterogeneity between the donors. In agreement with this clustering, sum modification levels rather than individual CpG modifications correlated with GR expression. Two-way ANOVA showed that this sum modification was both promoter and brain region specific, but that there was however no promoter*tissue interaction. The heterogeneity between donors may however hide such an interaction. In both promoters 1F and 1H modification levels correlated with GRα expression suggesting that 5-mC and 5-hmC play an important role in fine tuning GR expression levels throughout the brain.
DOI: 10.1016/j.jpsychires.2013.07.022
PubMed: 23948638
Affiliations:
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Mériaux</name></author><author><name sortKey="Turner, Jonathan D" sort="Turner, Jonathan D" uniqKey="Turner J" first="Jonathan D" last="Turner">Jonathan D. Turner</name></author><author><name sortKey="Muller, Claude P" sort="Muller, Claude P" uniqKey="Muller C" first="Claude P" last="Muller">Claude P. Muller</name></author></analytic><series><title level="j">Journal of psychiatric research</title><idno type="eISSN">1879-1379</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Brain (anatomy & histology)</term><term>Brain (metabolism)</term><term>Dinucleoside Phosphates (genetics)</term><term>Female</term><term>Gene Expression (physiology)</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Postmortem Changes</term><term>Promoter Regions, Genetic (physiology)</term><term>Receptors, Glucocorticoid (metabolism)</term><term>Receptors, Mineralocorticoid (genetics)</term><term>Receptors, Mineralocorticoid (metabolism)</term><term>Young Adult</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Dinucleoside Phosphates</term><term>Receptors, Mineralocorticoid</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Brain</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Brain</term><term>Receptors, Glucocorticoid</term><term>Receptors, Mineralocorticoid</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Gene Expression</term><term>Promoter Regions, Genetic</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Postmortem Changes</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Glucocorticoids and the glucocorticoid (GR) and mineralocorticoid (MR) receptors have been implicated in many processes, particularly in negative feedback regulation of the hypothalamic-pituitary-adrenal axis. Epigenetically programmed GR alternative promoter usage underlies transcriptional control of GR levels, generation of GR 3' splice variants, and the overall GC response in the brain. No detailed analysis of GR first exons or GR transcript variants throughout the human brain has been reported. Therefore we investigated post mortem tissues from 28 brain regions of 5 individuals. GR first exons were expressed throughout the healthy human brain with no region-specific usage patterns. First exon levels were highly inter-correlated suggesting that they are co-regulated. GR 3' splice variants (GRα and GR-P) were equally distributed in all regions, and GRβ expression was always low. GR/MR ratios showed significant differences between the 28 tissues with the highest ratio in the pituitary gland. Modification levels of individual CpG dinucleotides, including 5-mC and 5-hmC, in promoters 1D, 1E, 1F, and 1H were low, and diffusely clustered; despite significant heterogeneity between the donors. In agreement with this clustering, sum modification levels rather than individual CpG modifications correlated with GR expression. Two-way ANOVA showed that this sum modification was both promoter and brain region specific, but that there was however no promoter*tissue interaction. The heterogeneity between donors may however hide such an interaction. In both promoters 1F and 1H modification levels correlated with GRα expression suggesting that 5-mC and 5-hmC play an important role in fine tuning GR expression levels throughout the brain.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country><region><li>Rhénanie-Palatinat</li></region><settlement><li>Trèves (Allemagne)</li></settlement><orgName><li>Université de Trèves</li></orgName></list><tree><noCountry><name sortKey="Jutavijittum, Prapan" sort="Jutavijittum, Prapan" uniqKey="Jutavijittum P" first="Prapan" last="Jutavijittum">Prapan Jutavijittum</name><name sortKey="Meriaux, Sophie B" sort="Meriaux, Sophie B" uniqKey="Meriaux S" first="Sophie B" last="Mériaux">Sophie B. Mériaux</name><name sortKey="Muller, Claude P" sort="Muller, Claude P" uniqKey="Muller C" first="Claude P" last="Muller">Claude P. Muller</name><name sortKey="Suwansirikul, Songkiet" sort="Suwansirikul, Songkiet" uniqKey="Suwansirikul S" first="Songkiet" last="Suwansirikul">Songkiet Suwansirikul</name><name sortKey="Turner, Jonathan D" sort="Turner, Jonathan D" uniqKey="Turner J" first="Jonathan D" last="Turner">Jonathan D. Turner</name></noCountry><country name="Allemagne"><region name="Rhénanie-Palatinat"><name sortKey="Cao Lei, Lei" sort="Cao Lei, Lei" uniqKey="Cao Lei L" first="Lei" last="Cao-Lei">Lei Cao-Lei</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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