KMID : 1234420080360040343
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Korean Journal of Microbiololgy and Biotechnology 2008 Volume.36 No. 4 p.343 ~ p.352
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Anti-inflammatory Effect of Boswellia sacra (Franckincense) Essential Oil in a Mouse Model of Allergic Asthma
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Lee Hye-Youn
Yun Mi-Young Kang Sang-Mo
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Abstract
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Frankincense, the gum resin derived from Boswellia species, is complex mixtures composed of about 5~9% highly aromatic essential oil, 65~85% alcohol-soluble resins, and the remaining water-soluble gums. The antiinflammatory properties of frankincense, alcohole-soluble resins, are well-recognized, but the question of whether aromatic essential oil also plays a role in the allergic asthma remains unanswered. This study was performed to evaluate anti-inflammatory effects of Boswellia sacra essential oil (BSEO) on ovalbumin (OVA)-induced asthma mouse model. BALB/c mice after intraperitoneal OVA sensitization were challenged with intratracheal OVA. One experimental group was inhaled with 0.3% BSEO for the later 8 weeks. BALB/c mice were sensitized and challenged with OVA and developed airway eosinophilia, mucus hypersecretion, and airway hyperresponsiveness. In contrast, the BSEO treated mice had reduced a number of eosinophils among BALF cells, goblet cell hyperplasia, and airway hyperresponsiveness. Cytokine analysis of BALF revealed that BSEO caused an increase in Th1 cytokine (interferon-¥ã (IFN-¥ã)) and a decrease in Th2 cytokines (interleukin-4 (IL-4), IL-5 and IL-13) levels. In addition, the OVA-specific serum IgE and eotaxin levels were also reduced. In mice inhaled BSEO, CD4+, CD3+/CCR3+, and B220+/CD23+ mediastinal lymph nodes cells were also decreased. These results suggest that inhaled BSEO as a immunomodulator in Th1/Th2 mediated asthma may have therapeutic potential for the treatment in allergic airway inflammation by a simple, cost-effective way.
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KEYWORD
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Boswellia sacra, frankincense, essential oil, allergic asthma, airway inflammation
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