CB2 receptors regulate natural killer cells that limit allergic airway inflammation in a murine model of asthma.

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“Allergic asthma is a chronic airway inflammatory disease involving the complementary actions of innate and adaptive immune responses.

Endogenously generated cannabinoids, acting via CB2 receptors play important roles in both homeostatic and inflammatory processes. However, the contribution of CB2-acting eicosanoids to the innate events preceding sensitization to the common house dust mite (HDM) allergen, remain to be elucidated. We investigated the role of CB2 activation during allergen-induced pulmonary inflammation and NK cell effector function.

CONCLUSIONS:

Collectively, these results reveal that CB2 activation is crucial in regulating pulmonary NK cell function, and suggest that NK cells serve to limit ILC2 activation and subsequent allergic airway inflammation. CB2 inhibition may present an important target to modulate NK cell response during pulmonary inflammation.”

https://www.ncbi.nlm.nih.gov/pubmed/27992060

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