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Murine Model of Allergen Induced Asthma
Published on: May 14, 2012
Mycobacterium vaccae Lysate Induces Anti-Allergic Immune Response In Vitro.
A V Strygin1,2, P P Nesmiyanov3,4, V I Petrov5,6
1Volgograd State Medical University, Ministry of Health of the Russian Federation, Volgograd, Russia. drumsav@mail.ru.
Mycobacterium vaccae, a soil bacterium, shows promise for preventing allergies. Its lysate stimulates immune cells, suggesting a potential role in managing allergic diseases like atopic dermatitis.
Area of Science:
- Immunology
- Microbiology
- Allergology
Background:
- Mycobacterium vaccae is a soil saprophyte with known anti-allergic properties.
- Previous research suggests a Th1-phenotype switch is involved in M. vaccae's mechanism of action for allergic diseases.
Purpose of the Study:
- To investigate the immunomodulatory properties of sonicated M. vaccae lysate.
- To evaluate its effects on dendritic cells and CD4+ T cells in co-cultures.
Main Methods:
- Co-culture of dendritic cells and CD4+ T cells with sonicated M. vaccae lysate.
- Analysis of cytokine synthesis (e.g., IL-10) and cell surface marker expression (e.g., CD86).
- Comparison with heat-killed M. vaccae.
Main Results:
- M. vaccae lysate significantly stimulated Interleukin-10 (IL-10) synthesis in co-cultures.
- It enhanced CD86 expression on dendritic cells.
- The sonicated lysate was more potent than heat-killed M. vaccae.
Conclusions:
- Sonicated M. vaccae lysate possesses potent immunomodulatory effects.
- These findings support the potential use of M. vaccae lysate for the primary prevention of allergic diseases, including atopic dermatitis.
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