IL13 and bronchiectasis: Their findings in other inflammatory parameters (IL-13 increased slightly in bronchiectasis, even in patients with eosinophilic inflammation) led them to establish the hypothesis that eosinophilic inflammation in bronchiectasis is not primarily Th2-driven and that another pathway through ILC2 cells possibly plays a role in eosinophilic inflammation; this has yet to be demonstrated, however.