IL4 and allergic asthma: Similarly, GATA3+ Lineagenegative type 2 innate lymphoid cells (iLC2), while typically known for their role as effector cells producing IL‐5 and IL‐13 in tissues in type 2 immune responses including atopic dermatititis and allergic asthma,119, 120, 121 can be stimulated with phorbol myristate acetate and ionomycin to produce IL‐4 when isolated from lymph nodes,122 and further contribute to elevating serum IL‐4 amounts after helminth infection.123