Considering the role of TTP in COPD pathogenesis and its interaction with various inflammatory cells, including eosinophils, we posited that there might be different mRNA expression patterns of the Zfp36 gene in patients with eosinophilic COPD compared to patients with non-eosinophilic COPD. The gene discussed is ZFP36; the disease is chronic obstructive pulmonary disease.