Cited by 15Epigenetics and DNA MethylationStress Responses and CortisolAdrenal Hormones and Disorders

Abnormal DNA methylation within HPA-axis genes years after paediatric critical illness

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Coppens, Grégoire, Vanhorebeek, Ilse, Güiza, Fabian, Derese, Inge, Wouters, Pieter J., Téblick, Arno, Dulfer, Karolijn, Joosten, Koen F. +2 more·2024·Clinical Epigenetics

Abstract

Background: Critically ill children suffer from impaired physical/neurocognitive development 2 years later. Glucocorticoid treatment alters DNA methylation within the hypothalamus–pituitary–adrenal (HPA) axis which may impair normal brain development, cognition and behaviour. We tested the hypothesis that paediatric-intensive-care-unit (PICU) patients, sex- and age-dependently, show long-term abnormal DNA methylation within the HPA-axis layers, possibly aggravated by glucocorticoid treatment in the PICU, which may contribute to the long-term developmental impairments. Results: In a pre-planned secondary analysis of the multicentre PEPaNIC-RCT and its 2-year follow-up, we identified differentially methylated positions and differentially methylated regions within HPA-axis genes in buccal mucosa DNA from 818 former PICU patients 2 years after PICU admission (n = 608 no glucocorticoid treatment; n = 210 glucocorticoid treatment) versus 392 healthy children and assessed interaction with sex and age, role of glucocorticoid treatment in the PICU and associations with long-term developmental impairments. Adjusting for technical variation and baseline risk factors and correcting for multiple testing (false discovery rate < 0.05), former PICU patients showed abnormal DNA methylation of 26 CpG sites (within CRHR1, POMC, MC2R, NR3C1, FKBP5, HSD11B1, SRD5A1, AKR1D1, DUSP1, TSC22D3 and TNF) and three DNA regions (within AVP, TSC22D3 and TNF) that were mostly hypomethylated. These abnormalities were sex-independent and only partially age-dependent. Abnormal methylation of three CpG sites within FKBP5 and one CpG site within SRD5A1 and AKR1D1 was partly attributable to glucocorticoid treatment during PICU stay. Finally, abnormal methylation within FKBP5 and AKR1D1 was most robustly associated with long-term impaired development. Conclusions: Two years after critical illness in children, abnormal methylation within HPA-axis genes was present, predominantly within FKBP5 and AKR1D1, partly attributable to glucocorticoid treatment in the PICU, and explaining part of the long-term developmental impairments. These data call for caution regarding liberal glucocorticoid use in the PICU.

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  • These exposures have been associated with coordinated alterations in stress-response regulation, circadian and sleep-related pathways, and metabolic processes.

    “These exposures have been associated with coordinated alterations in stress-response regulation, circadian and sleep-related pathways, and metabolic processes (102–115).”

    From Epigenetic changes associated with multi-generational trauma: characterization, mechanisms, and therapeutics (2026) · cites this paper as [105]

    The Background and Discussion (page unavailable in our copy) describe altered methylation in HPA-axis and glucocorticoid-signalling genes, including genes involved in cortisol metabolism, after stress or paediatric critical illness. They do not establish coordinated alterations in circadian or sleep-related pathways, or in metabolic processes beyond cortisol metabolism; searches for “sleep” and “circadian” found no supporting passage. (LLM, conf=0.85)

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  • Maternal exposure to Canadian residential schools has been linked to higher cortisol, catecholamines, and inflammatory cytokine levels in offspring, including cases in which offspring were not raised by their biological parents.

    “Similarly, maternal exposure to Canadian residential schools has been linked to higher cortisol, catecholamines, and inflammatory cytokine levels in offspring, including cases in which offspring were not raised by their biological parents (104, 105).”

    From Epigenetic changes associated with multi-generational trauma: characterization, mechanisms, and therapeutics (2026) · cites this paper as [105]

    The Methods and Discussion describe DNA methylation in children after paediatric intensive care, not maternal exposure to residential schools. Searches for Canadian residential schools and the claimed offspring findings found no passage addressing cortisol, catecholamines, inflammatory cytokines, or whether offspring were raised by biological parents in that context. The indexed copy provides no page numbers. (LLM, conf=0.76)

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Authors
Coppens, G., Vanhorebeek, I., Güiza, F., Derese, I., Wouters, P. J., Téblick, A., Dulfer, K., Joosten, K. F., Verbruggen, S. C., & Van den Berghe, G.
Affiliations
  • KU Leuven (BE)
  • Erasmus MC - Sophia Children’s Hospital (NL)
Venue
Clinical Epigenetics
Published
2024-02-23
Volume
16
Issue
1
Pages
31-31
ISSN
  • 1868-7075 (ISSN-L)
  • 1868-7083
OpenAlex
W4392111446
Cited by
15
References
74
Citations by year
2026: 5 · 2025: 9 · 2024: 1
FWCI
2.04
Type
journal article
Language
en
Open access
Locations
  • Clinical Epigenetics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion, cc-by)
  • Lirias (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Methusalem program of the Flemish government (METH14/06)
  • Sophia Research Foundation
  • Stichting Agis Zorginnovatie
  • European Society for Clinical Nutrition and Metabolism (Research grant)
  • FP7 Ideas: European Research Council (AdvG-2012-321670)
  • H2020 European Research Council (AdvG-2017-785809)
  • Institute for Science and Technology, Flanders, Belgium (IWT/110685/TBM)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
Keywords
DNA methylation, hypothalamic-pituitary-adrenal axis, critically ill children, intensive care unit, glucocorticoid therapy, FKBP5, AKR1D1, brain development, sex differences, age differences, CRHR1, proopiomelanocortin, melanocortin 2 receptor, NR3C1, SRD5A1, TSC22D3, TNF-α
MeSH terms
Child, DNA, Glucocorticoids, Humans, Receptors, Glucocorticoid, Critical Illness, DNA Methylation

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