IL4 and bronchial endocrine tumor: Moreover, we have evaluated the effects of lanreotide on Th1 and Th2 functional profile on NET cell lines (typical bronchial NET NCI-H727 and pancreatic NET BON-1) and in patients with advanced NETs by evaluating specific cytokine patterns (IL-2, IL-4, IL-6, IL-10, IFN-γ, and TNFα).