Targeted spleen modulation: a novel strategy for next-generation disease immunotherapy

Area of Science:

• Immunology
• Neuroscience
• Physiology

Background:

• The spleen, a major lymphatic organ, houses diverse immune cells crucial for blood-borne antigen capture, immune response orchestration, hematopoiesis, and red blood cell clearance.
• It possesses sympathetic innervation but lacks parasympathetic innervation, highlighting the importance of the neuroimmune axis in disease.
• Understanding splenic immunocyte function and neuroimmune interactions is key to developing therapeutic strategies for immune homeostasis restoration.

Purpose of the Study:

• To explore the spleen's immunological functions and its neuroimmune axis.
• To review mechanisms of splenic immunomodulation, including the cholinergic anti-inflammatory pathway and direct immunocyte modulation.
• To evaluate physical stimulation methods for splenic immunomodulation and disease management.

Main Methods:

• Review of existing research on splenic immunology and neuroimmune interactions.
• Analysis of immunomodulatory mechanisms involving catecholamine signaling and acetylcholine.
• Evaluation of physical therapeutic approaches like electrical and ultrasound stimulation.

Main Results:

• The spleen's diverse immunocytes and structural organization are vital for immune surveillance and response.
• The neuroimmune axis significantly impacts disease progression, with sympathetic and parasympathetic pathways playing key roles.
• Physical stimulation methods, especially electrical and ultrasound, show significant potential for clinical splenic immunomodulation.

Conclusions:

• The spleen is a critical immune organ with complex neuroimmune interactions.
• Targeting splenic immunocytes and neuroimmune pathways offers therapeutic potential for various diseases.
• Electrical and ultrasound stimulation represent promising, clinically applicable strategies for splenic immunomodulation.