Corticosteroid Receptor Modulation in Neuroendocrine Function

Corticosteroid receptor modulation governs how the neuroendocrine system adapts to stress, sustains homeostasis and orchestrates brain function. Central to this regulation are glucocorticoid receptors (GRs) and mineralocorticoid receptors (MRs), which interpret hormone signals and direct genomic and non-genomic programmes. Within the hypothalamic–pituitary–adrenal (HPA) axis, these receptors balance feedback loops that generate circadian and ultradian hormone rhythms, fine-tuning neuronal excitability, synaptic plasticity and gene expression. In the hippocampus, prefrontal cortex and hypothalamus, MR-driven rapid actions facilitate threat appraisal, while GR-mediated slower effects underlie contextual memory consolidation and termination of the stress response. Dysregulated receptor signalling disrupts cognitive, metabolic and inflammatory pathways, with implications for depression, metabolic syndrome and neurodegeneration. Advances in chemical biology, chronotherapy and developmental models reveal how targeted receptor modulation can refine therapeutic strategies, restore physiological hormone patterns and prevent long-term sequelae of early stress exposure across the life course.

Research from Nature Portfolio

Recent studies have harnessed proteolysis-targeting chimera (PROTAC) technology to develop selective GR degraders, enabling precise depletion of receptor pools in neurons without genetic manipulation. These degrader molecules attenuate glucocorticoid-induced gene programmes, temper aberrant calcium signalling in primary cultures and demonstrate proof-of-concept efficacy in vivo. Complementary work in an optogenetic zebrafish model reveals that excess glucocorticoid during early development prompts precocious hypothalamic neurogenesis, followed by failed maturation and early progenitor decline. This alteration, mediated by direct transcriptional regulation of key factors, impairs feeding, growth and survival, highlighting a critical window for receptor-driven developmental trajectories.

Research from all publishers

Investigations into circadian and ultradian hormone rhythms emphasise the importance of continuous dynamic equilibria for gene activation, synaptic modulation and metabolic control. Novel wearable sensors that capture 24-hour cortisol profiles now facilitate personalised hormone replacement regimens that mimic physiological secretion patterns. In parallel, animal studies demonstrate that disruption of natural corticosteroid rhythms misaligns the hippocampal transcriptome and synaptic clock, leading to memory deficits. Oral dosing regimens of synthetic corticosteroids, when delivered without respecting ultradian peaks, impair hippocampal-dependent learning by decoupling intraneuronal transcriptional cycles from environmental light–dark cues.

Corticosteroid Receptor Modulation in Neuroendocrine Function publication trend

The graph below shows the total number of articles in corticosteroid receptor modulation in neuroendocrine function across all publications each year (not limited to Nature Index journals).

Technical terms

HPA axis: the hierarchical system linking hypothalamus, pituitary and adrenal glands to regulate stress hormones.

Glucocorticoid receptor (GR): intracellular receptor mediating the genomic and non-genomic actions of glucocorticoids.

Mineralocorticoid receptor (MR): high-affinity intracellular receptor for corticosteroids that governs rapid and delayed stress responses.

Circadian rhythm: a roughly 24-hour cycle of biological activity, including hormone secretion and gene expression.

Ultradian rhythm: recurrent biological oscillations with periods shorter than 24 hours that underlie pulsatile corticosteroid release.

PROTAC: a bifunctional molecule that directs specific protein degradation via the ubiquitin–proteasome system.

Neurogenesis: the formation of new neurons from progenitor cells, crucial for brain development and plasticity.

References

1. Harnessing PROTAC technology to combat stress hormone receptor activation. Nature Communications (2023).
2. Circadian and ultradian rhythms: Clinical implications. Journal of Internal Medicine (2024).
3. Circadian regulation of hippocampal function is disrupted with corticosteroid treatment. Proceedings of the National Academy of Sciences of the United States of America (2023).
4. Elevated glucocorticoid alters the developmental dynamics of hypothalamic neurogenesis in zebrafish. Communications Biology (2024).
5. Importance of the brain corticosteroid receptor balance in metaplasticity, cognitive performance and neuro-inflammation. Frontiers in Neuroendocrinology (2018).