Massage-like stroking boosts the immune system in mice

Area of Science:

• Immunology
• Neuroscience
• Integrative Medicine

Background:

• Clinical evidence suggests massage therapy influences the immune system.
• This effect can potentially be used alongside conventional treatments.

Purpose of the Study:

• To investigate the immunomodulatory mechanisms of massage-like stroking in mice.
• To explore the role of the nervous system in massage's therapeutic effects.

Main Methods:

• C57/BL6 mice were subjected to daily stroking with a soft brush or gloved hand for 8 days.
• Immune cell populations in the thymus and spleen were analyzed.
• Noradrenergic innervation of lymphoid organs was assessed.
• Effects were compared to non-stroked controls and in the context of hydrocortisone treatment.

Main Results:

• Hand-stroking significantly increased thymic and splenic T cell numbers compared to controls.
• Brush-stroking did not yield significant changes in T cell numbers.
• Increased T cells were associated with decreased noradrenergic innervation in lymphoid organs.
• Massage-like therapy counteracted the immunosuppressive effects of hydrocortisone.

Conclusions:

• Massage-like therapy, specifically hand-stroking, enhances the T cell repertoire in mice.
• Reduced noradrenergic tone in lymphoid organs is a potential mechanism for this immunomodulation.
• These findings support the therapeutic potential of massage for immunodeficiencies and related conditions.