Shikotra et al. found an upregulation of the CEACAM6 (carcinoembryonic antigen related cell adhesion molecule 6) transcript in bronchial biopsies of asthmatic patients; it was associated with airway epithelial cells and tissue neutrophils, showing that the CEACAM6 expression levels could be linked to a Neutrophilic asthma phenotype [101]. This evidence concerns the gene CEACAM6 and asthma.