Because ILC2s play an important part in the initiation and maintenance of allergic inflammation in atopic lesions,2, 5 we further compared the level of CysLT1 in ILC2s isolated ex vivo from patients with atopic dermatitis and healthy control subjects (Fig 1, C, and see Table E2 in this article's Online Repository at www.jacionline.org). The gene discussed is CYSLTR1; the disease is atopic eczema.