[Immunosuppressive effects of glucocoriticoid]

Area of Science:

• Immunology
• Molecular Biology
• Pharmacology

Context:

• Glucocorticoids (GC) are essential therapeutics for autoimmune, inflammatory, and allergic conditions.
• GC therapy is associated with significant side effects, notably increased susceptibility to infections due to immunosuppression.
• The mechanism involves GC binding to the GC receptor (GR), a transcription factor.

Purpose:

• To elucidate the molecular mechanisms underlying GC-induced immunosuppression.
• To investigate the crosstalk between the GC receptor (GR) and other transcription factors (TF).
• To understand how GR-TF interactions modulate gene expression in immune responses.

Summary:

• GC exert effects by binding to the GR, influencing transcription.
• GR engages in crosstalk with TFs like NF-kappaB, AP-1, STAT, and IRF3, which are activated by cytokines or TLR signaling.
• This interaction modulates the transcription of genes critical for innate and acquired immunity, allergy, and inflammation.

Impact:

• Provides insights into GC-induced side effects, particularly infections.
• Identifies key molecular players and pathways involved in immune regulation by GCs.
• Offers potential targets for mitigating GC side effects while preserving therapeutic benefits.