Psychic distress and the immune response

Area of Science:

• Psychoneuroimmunology
• Neuroscience
• Immunology

Background:

• The central nervous system (CNS) plays a role in regulating immune function.
• Psychic distress is increasingly recognized as a factor influencing health outcomes.
• Understanding the interplay between the nervous and immune systems is crucial for a holistic view of health.

Purpose of the Study:

• To review recent advancements in understanding CNS immunoregulation.
• To discuss the mechanisms underlying immunomodulation by the CNS.
• To highlight the reciprocal communication between the nervous and immune systems.

Main Methods:

• Review of human and animal studies on psychic distress and immune function.
• Analysis of data implicating neuroendocrine, genetic, neuroanatomical, and learning factors.
• Consideration of models for CNS-immune system interaction.

Main Results:

• Evidence demonstrates significant immunosuppression associated with psychic distress in both humans and animals.
• Neuroendocrine, genetic, neuroanatomical, and learning factors are implicated in CNS-mediated immunomodulation.
• A hierarchical model is proposed linking traits, environment, experience, mental state, and immune response.

Conclusions:

• Mental status profoundly affects physiological homeostasis and immune competence.
• Psychoneuroimmunology is a rapidly growing field elucidating the mechanisms of immunoregulation.
• Reciprocal interactions between the nervous and immune systems are fundamental to health and disease.