Prolactin and Autoimmunity.

Area of Science:

• Immunology
• Endocrinology
• Reproductive Biology

Background:

• Autoimmune diseases exhibit significant gender asymmetry, particularly in women of childbearing age.
• Pregnancy and postpartum periods present unique immunological challenges due to complex endocrine alterations.
• Hormonal homeostasis is critical for immune system competence and health.

Purpose of the Study:

• To critically review the intricate relationship between prolactin (PRL), autoimmune diseases, and motherhood.
• To explore the role of sex hormones, particularly PRL, in the gender dimorphism of autoimmunity.
• To examine the therapeutic potential of dopamine agonists in managing autoimmune disorders.

Main Methods:

• Literature review focusing on hormonal influences on autoimmunity.
• Analysis of studies investigating prolactin's role in immune modulation.
• Examination of research on dopamine's effect on prolactin secretion and clinical benefits.

Main Results:

• Prolactin (PRL) acts as both a hormone and cytokine, modulating the immune system.
• PRL interferes with immune tolerance by inhibiting the negative selection of autoreactive B lymphocytes.
• Hyperprolactinemia is linked to the pathogenesis and activity of various autoimmune disorders.
• Dopamine agonists effectively inhibit PRL secretion and have shown clinical benefits in autoimmune patients.

Conclusions:

• The interplay between prolactin, sex hormones, and the immune system is central to understanding autoimmune disease dimorphism.
• Dopamine agonists represent a promising therapeutic avenue for autoimmune diseases, particularly those influenced by hyperprolactinemia.
• Further research into hormonal regulation of autoimmunity is crucial for developing targeted therapies.