Figure 6From: Growth of human bronchial epithelial cells at an air-liquid interface alters the response to particle exposure RT-PCR for IL-8 and HOX1 relative to GAPDH in unexposed NHBE cells grown in 95% air-5% CO 2 (normoxia) and 95% N 2 -5% CO 2 (hypoxia) for 24 hours. RNA for IL-8 and HOX1 significantly increased with hypoxia. *Significant difference relative to normoxia.Back to article page