CXCR2 and asthma: By evaluating the expression of biomarker genes in patients with asthma, Baines et al. found that CLC, CPA3, and DNASE1L3 expression increased in patients with eosinophilic asthma, while IL-1A, ALPL, and CXCR2 expression increased in patients with neutrophilic asthma [94].