Figure 6From: β2-agonists promote host defense against bacterial infection in primary human bronchial epithelial cells Impact of IL-13 on β2-adrenergic receptor (ADRB2) mRNA expression in bronchial epithelial cells. Compared with non-IL-13 treatment (-), IL-13 significantly lowered ADRB2 mRNA levels in cultured bronchial epithelial cells from asthma (A, n = 8,) and COPD (B, n = 8) patients.Back to article page