Cortisol-related pathways

Cortisol-related pathways encompass the biological processes involved in the synthesis, regulation, and physiological actions of cortisol, the primary glucocorticoid in humans. These pathways are central to the body's stress response, primarily mediated through the hypothalamic-pituitary-adrenal (HPA) axis and the activation of the glucocorticoid receptor (GR). Upon binding cortisol, the GR acts as a transcription factor to regulate genes involved in metabolism, immune function, and inflammatory responses. The pathways also include enzymes such as 11β-hydroxysteroid dehydrogenase, which modulate the local availability of active cortisol in tissues. Dysregulation of these pathways is associated with a wide range of conditions, including Cushing's syndrome, Addison's disease, chronic inflammatory disorders, and psychiatric conditions such as depression and PTSD. Pharmacological modulation of these pathways typically involves the use of GR agonists, such as dexamethasone, for their potent anti-inflammatory and immunosuppressive effects. Conversely, GR antagonists like mifepristone are used to treat conditions of cortisol excess or certain hormone-dependent cancers. Additionally, inhibitors of cortisol biosynthesis, such as ketoconazole and metyrapone, are employed to manage hypercortisolism by blocking enzymatic steps in the adrenal cortex. These pathways are also targets for emerging therapies in metabolic syndrome and cardiovascular disease due to cortisol's role in glucose and lipid metabolism. Overall, the study and therapeutic targeting of cortisol-related pathways remain critical for managing diverse endocrine, inflammatory, and psychological health challenges.

Other names

Glucocorticoid signaling pathwayHPA axisCortisol signalingGlucocorticoid receptor signaling

Modulation of the glucocorticoid receptor (agonism or antagonism) and inhibition of steroidogenesis enzymes to regulate cortisol levels and signaling.