OXER1 is expressed in human leucocytes (lymphocytes, monocytes, neutrophils, and eosinophils) and various tissues [17,18,19,20,21], while a primary role of 5-oxo-ETE in asthma has been found, with specific OXER1 antagonists currently investigated as a potential novel treatment [41,42]. This evidence concerns the gene OXER1 and asthma.